From 33766368f6532313571534f9112b1796d6651bbe Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Sun, 30 Sep 2012 19:47:40 +0300 Subject: mac80211: Fix FC masking in BIP AAD generation The bits used in the mask were off-by-one and ended up masking PwrMgt, MoreData, Protected fields instead of Retry, PwrMgt, MoreData. Fix this and to mask the correct fields. While doing so, convert the code to mask the full FC using IEEE80211_FCTL_* defines similarly to how CCMP AAD is built. Since BIP is used only with broadcast/multicast management frames, the Retry field is always 0 in these frames. The Protected field is also zero to maintain backwards compatibility. As such, the incorrect mask here does not really cause any problems for valid frames. In theory, an invalid BIP frame with Retry or Protected field set to 1 could be rejected because of BIP validation. However, no such frame should show up with standard compliant implementations, so this does not cause problems in normal BIP use. Signed-off-by: Jouni Malinen Signed-off-by: Johannes Berg diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index bdb53ab..e58bf3f 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -545,14 +545,19 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx) static void bip_aad(struct sk_buff *skb, u8 *aad) { + __le16 mask_fc; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + /* BIP AAD: FC(masked) || A1 || A2 || A3 */ /* FC type/subtype */ - aad[0] = skb->data[0]; /* Mask FC Retry, PwrMgt, MoreData flags to zero */ - aad[1] = skb->data[1] & ~(BIT(4) | BIT(5) | BIT(6)); + mask_fc = hdr->frame_control; + mask_fc &= ~cpu_to_le16(IEEE80211_FCTL_RETRY | IEEE80211_FCTL_PM | + IEEE80211_FCTL_MOREDATA); + put_unaligned(mask_fc, (__le16 *) &aad[0]); /* A1 || A2 || A3 */ - memcpy(aad + 2, skb->data + 4, 3 * ETH_ALEN); + memcpy(aad + 2, &hdr->addr1, 3 * ETH_ALEN); } -- cgit v0.10.2 From 1d10ecf8371be22c68b2e52e7376c7075c97f656 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Thu, 27 Sep 2012 13:54:01 +0800 Subject: ARM: imx: fix return value check in imx3_init_l2x0() In case of error, the function ioremap() returns NULL not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c index 9d2c843..b5deb05 100644 --- a/arch/arm/mach-imx/mm-imx3.c +++ b/arch/arm/mach-imx/mm-imx3.c @@ -108,9 +108,8 @@ void __init imx3_init_l2x0(void) } l2x0_base = ioremap(MX3x_L2CC_BASE_ADDR, 4096); - if (IS_ERR(l2x0_base)) { - printk(KERN_ERR "remapping L2 cache area failed with %ld\n", - PTR_ERR(l2x0_base)); + if (!l2x0_base) { + printk(KERN_ERR "remapping L2 cache area failed\n"); return; } -- cgit v0.10.2 From 964a4da327477c90aa764a1d986c58476502c0ff Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 14 Sep 2012 15:25:45 -0300 Subject: ARM: imx_v6_v7_defconfig: Enable CONFIG_GPIO_MC9S08DZ60 On mx35pdk board there is an 8-bit microcontroller that controls several IOs, such as backlight enable pin, USB host VBUS, etc. Let it build by default. mx35pdk also needs CONFIG_LCD_PLATFORM to be selected to activate the display, so also make this the default. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index 3c9f32f..c80782b 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -142,6 +142,7 @@ CONFIG_I2C_IMX=y CONFIG_SPI=y CONFIG_SPI_IMX=y CONFIG_GPIO_SYSFS=y +CONFIG_GPIO_MC9S08DZ60=y # CONFIG_HWMON is not set CONFIG_WATCHDOG=y CONFIG_IMX2_WDT=y @@ -158,6 +159,7 @@ CONFIG_SOC_CAMERA=y CONFIG_SOC_CAMERA_OV2640=y CONFIG_VIDEO_MX3=y CONFIG_FB=y +CONFIG_LCD_PLATFORM=y CONFIG_BACKLIGHT_LCD_SUPPORT=y CONFIG_LCD_CLASS_DEVICE=y CONFIG_LCD_L4F00242T03=y -- cgit v0.10.2 From e0654d0177a85490b3e61b080a09aace66805c0a Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Fri, 21 Sep 2012 14:14:25 +0800 Subject: ARM: imx: fix the return value check in imx_clk_busy_divider() In case of error, the function clk_register() returns ERR_PTR() no NULL pointer. The NULL test in the return value check should be replaced with IS_ERR(). dpatch engine is used to auto generated this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/clk-busy.c b/arch/arm/mach-imx/clk-busy.c index 1a7a8dd..1ab91b5 100644 --- a/arch/arm/mach-imx/clk-busy.c +++ b/arch/arm/mach-imx/clk-busy.c @@ -108,7 +108,7 @@ struct clk *imx_clk_busy_divider(const char *name, const char *parent_name, busy->div.hw.init = &init; clk = clk_register(NULL, &busy->div.hw); - if (!clk) + if (IS_ERR(clk)) kfree(busy); return clk; -- cgit v0.10.2 From b61a602ee6730150f4d0df730d9312ac4d820ceb Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 9 Oct 2012 13:04:34 +0900 Subject: ipvs: initialize returned data in do_ip_vs_get_ctl As reported by a gcc warning, the do_ip_vs_get_ctl does not initalize all the members of the ip_vs_timeout_user structure it returns if at least one of the TCP or UDP protocols is disabled for ipvs. This makes sure that the data is always initialized, before it is returned as a response to IPVS_CMD_GET_CONFIG or printed as a debug message in IPVS_CMD_SET_CONFIG. Without this patch, building ARM ixp4xx_defconfig results in: net/netfilter/ipvs/ip_vs_ctl.c: In function 'ip_vs_genl_set_cmd': net/netfilter/ipvs/ip_vs_ctl.c:2238:47: warning: 't.udp_timeout' may be used uninitialized in this function [-Wuninitialized] net/netfilter/ipvs/ip_vs_ctl.c:3322:28: note: 't.udp_timeout' was declared here net/netfilter/ipvs/ip_vs_ctl.c:2238:47: warning: 't.tcp_fin_timeout' may be used uninitialized in this function [-Wuninitialized] net/netfilter/ipvs/ip_vs_ctl.c:3322:28: note: 't.tcp_fin_timeout' was declared here net/netfilter/ipvs/ip_vs_ctl.c:2238:47: warning: 't.tcp_timeout' may be used uninitialized in this function [-Wuninitialized] net/netfilter/ipvs/ip_vs_ctl.c:3322:28: note: 't.tcp_timeout' was declared here Signed-off-by: Arnd Bergmann Acked-by: Julian Anastasov Signed-off-by: Simon Horman diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index 7e7198b..c4ee437 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -2589,6 +2589,8 @@ __ip_vs_get_timeouts(struct net *net, struct ip_vs_timeout_user *u) struct ip_vs_proto_data *pd; #endif + memset(u, 0, sizeof (*u)); + #ifdef CONFIG_IP_VS_PROTO_TCP pd = ip_vs_proto_data_get(net, IPPROTO_TCP); u->tcp_timeout = pd->timeout_table[IP_VS_TCP_S_ESTABLISHED] / HZ; @@ -2766,7 +2768,6 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len) { struct ip_vs_timeout_user t; - memset(&t, 0, sizeof(t)); __ip_vs_get_timeouts(net, &t); if (copy_to_user(user, &t, sizeof(t)) != 0) ret = -EFAULT; -- cgit v0.10.2 From 3b4d6c8283bd676e4e8dc2c3c96d4a024ca2d7f3 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 8 Oct 2012 23:20:00 -0300 Subject: ARM: imx: clk-imx27: Fix divider width field As per mx27 reference manual, H264DIV and SSI2DIV are 6-bit wide fields in register PCDR0. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c index f69ca46..a85d330 100644 --- a/arch/arm/mach-imx/clk-imx27.c +++ b/arch/arm/mach-imx/clk-imx27.c @@ -109,7 +109,7 @@ int __init mx27_clocks_init(unsigned long fref) clk[per3_div] = imx_clk_divider("per3_div", "mpll_main2", CCM_PCDR1, 16, 6); clk[per4_div] = imx_clk_divider("per4_div", "mpll_main2", CCM_PCDR1, 24, 6); clk[vpu_sel] = imx_clk_mux("vpu_sel", CCM_CSCR, 21, 1, vpu_sel_clks, ARRAY_SIZE(vpu_sel_clks)); - clk[vpu_div] = imx_clk_divider("vpu_div", "vpu_sel", CCM_PCDR0, 10, 3); + clk[vpu_div] = imx_clk_divider("vpu_div", "vpu_sel", CCM_PCDR0, 10, 6); clk[usb_div] = imx_clk_divider("usb_div", "spll", CCM_CSCR, 28, 3); clk[cpu_sel] = imx_clk_mux("cpu_sel", CCM_CSCR, 15, 1, cpu_sel_clks, ARRAY_SIZE(cpu_sel_clks)); clk[clko_sel] = imx_clk_mux("clko_sel", CCM_CCSR, 0, 5, clko_sel_clks, ARRAY_SIZE(clko_sel_clks)); @@ -121,7 +121,7 @@ int __init mx27_clocks_init(unsigned long fref) clk[ssi1_sel] = imx_clk_mux("ssi1_sel", CCM_CSCR, 22, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks)); clk[ssi2_sel] = imx_clk_mux("ssi2_sel", CCM_CSCR, 23, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks)); clk[ssi1_div] = imx_clk_divider("ssi1_div", "ssi1_sel", CCM_PCDR0, 16, 6); - clk[ssi2_div] = imx_clk_divider("ssi2_div", "ssi2_sel", CCM_PCDR0, 26, 3); + clk[ssi2_div] = imx_clk_divider("ssi2_div", "ssi2_sel", CCM_PCDR0, 26, 6); clk[clko_en] = imx_clk_gate("clko_en", "clko_div", CCM_PCCR0, 0); clk[ssi2_ipg_gate] = imx_clk_gate("ssi2_ipg_gate", "ipg", CCM_PCCR0, 0); clk[ssi1_ipg_gate] = imx_clk_gate("ssi1_ipg_gate", "ipg", CCM_PCCR0, 1); -- cgit v0.10.2 From fc5a40a2301aa241eedb16caf9169ca5763707c1 Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 9 Oct 2012 09:49:02 +0100 Subject: UAPI: (Scripted) Disintegrate include/linux/raid Signed-off-by: David Howells Acked-by: Arnd Bergmann Acked-by: Thomas Gleixner Acked-by: Michael Kerrisk Acked-by: Paul E. McKenney Acked-by: Dave Jones diff --git a/include/linux/raid/Kbuild b/include/linux/raid/Kbuild index 2415a64..e69de29 100644 --- a/include/linux/raid/Kbuild +++ b/include/linux/raid/Kbuild @@ -1,2 +0,0 @@ -header-y += md_p.h -header-y += md_u.h diff --git a/include/linux/raid/md_p.h b/include/linux/raid/md_p.h deleted file mode 100644 index ee75353..0000000 --- a/include/linux/raid/md_p.h +++ /dev/null @@ -1,301 +0,0 @@ -/* - md_p.h : physical layout of Linux RAID devices - Copyright (C) 1996-98 Ingo Molnar, Gadi Oxman - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - You should have received a copy of the GNU General Public License - (for example /usr/src/linux/COPYING); if not, write to the Free - Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#ifndef _MD_P_H -#define _MD_P_H - -#include - -/* - * RAID superblock. - * - * The RAID superblock maintains some statistics on each RAID configuration. - * Each real device in the RAID set contains it near the end of the device. - * Some of the ideas are copied from the ext2fs implementation. - * - * We currently use 4096 bytes as follows: - * - * word offset function - * - * 0 - 31 Constant generic RAID device information. - * 32 - 63 Generic state information. - * 64 - 127 Personality specific information. - * 128 - 511 12 32-words descriptors of the disks in the raid set. - * 512 - 911 Reserved. - * 912 - 1023 Disk specific descriptor. - */ - -/* - * If x is the real device size in bytes, we return an apparent size of: - * - * y = (x & ~(MD_RESERVED_BYTES - 1)) - MD_RESERVED_BYTES - * - * and place the 4kB superblock at offset y. - */ -#define MD_RESERVED_BYTES (64 * 1024) -#define MD_RESERVED_SECTORS (MD_RESERVED_BYTES / 512) - -#define MD_NEW_SIZE_SECTORS(x) ((x & ~(MD_RESERVED_SECTORS - 1)) - MD_RESERVED_SECTORS) - -#define MD_SB_BYTES 4096 -#define MD_SB_WORDS (MD_SB_BYTES / 4) -#define MD_SB_SECTORS (MD_SB_BYTES / 512) - -/* - * The following are counted in 32-bit words - */ -#define MD_SB_GENERIC_OFFSET 0 -#define MD_SB_PERSONALITY_OFFSET 64 -#define MD_SB_DISKS_OFFSET 128 -#define MD_SB_DESCRIPTOR_OFFSET 992 - -#define MD_SB_GENERIC_CONSTANT_WORDS 32 -#define MD_SB_GENERIC_STATE_WORDS 32 -#define MD_SB_GENERIC_WORDS (MD_SB_GENERIC_CONSTANT_WORDS + MD_SB_GENERIC_STATE_WORDS) -#define MD_SB_PERSONALITY_WORDS 64 -#define MD_SB_DESCRIPTOR_WORDS 32 -#define MD_SB_DISKS 27 -#define MD_SB_DISKS_WORDS (MD_SB_DISKS*MD_SB_DESCRIPTOR_WORDS) -#define MD_SB_RESERVED_WORDS (1024 - MD_SB_GENERIC_WORDS - MD_SB_PERSONALITY_WORDS - MD_SB_DISKS_WORDS - MD_SB_DESCRIPTOR_WORDS) -#define MD_SB_EQUAL_WORDS (MD_SB_GENERIC_WORDS + MD_SB_PERSONALITY_WORDS + MD_SB_DISKS_WORDS) - -/* - * Device "operational" state bits - */ -#define MD_DISK_FAULTY 0 /* disk is faulty / operational */ -#define MD_DISK_ACTIVE 1 /* disk is running or spare disk */ -#define MD_DISK_SYNC 2 /* disk is in sync with the raid set */ -#define MD_DISK_REMOVED 3 /* disk is in sync with the raid set */ - -#define MD_DISK_WRITEMOSTLY 9 /* disk is "write-mostly" is RAID1 config. - * read requests will only be sent here in - * dire need - */ - -typedef struct mdp_device_descriptor_s { - __u32 number; /* 0 Device number in the entire set */ - __u32 major; /* 1 Device major number */ - __u32 minor; /* 2 Device minor number */ - __u32 raid_disk; /* 3 The role of the device in the raid set */ - __u32 state; /* 4 Operational state */ - __u32 reserved[MD_SB_DESCRIPTOR_WORDS - 5]; -} mdp_disk_t; - -#define MD_SB_MAGIC 0xa92b4efc - -/* - * Superblock state bits - */ -#define MD_SB_CLEAN 0 -#define MD_SB_ERRORS 1 - -#define MD_SB_BITMAP_PRESENT 8 /* bitmap may be present nearby */ - -/* - * Notes: - * - if an array is being reshaped (restriped) in order to change the - * the number of active devices in the array, 'raid_disks' will be - * the larger of the old and new numbers. 'delta_disks' will - * be the "new - old". So if +ve, raid_disks is the new value, and - * "raid_disks-delta_disks" is the old. If -ve, raid_disks is the - * old value and "raid_disks+delta_disks" is the new (smaller) value. - */ - - -typedef struct mdp_superblock_s { - /* - * Constant generic information - */ - __u32 md_magic; /* 0 MD identifier */ - __u32 major_version; /* 1 major version to which the set conforms */ - __u32 minor_version; /* 2 minor version ... */ - __u32 patch_version; /* 3 patchlevel version ... */ - __u32 gvalid_words; /* 4 Number of used words in this section */ - __u32 set_uuid0; /* 5 Raid set identifier */ - __u32 ctime; /* 6 Creation time */ - __u32 level; /* 7 Raid personality */ - __u32 size; /* 8 Apparent size of each individual disk */ - __u32 nr_disks; /* 9 total disks in the raid set */ - __u32 raid_disks; /* 10 disks in a fully functional raid set */ - __u32 md_minor; /* 11 preferred MD minor device number */ - __u32 not_persistent; /* 12 does it have a persistent superblock */ - __u32 set_uuid1; /* 13 Raid set identifier #2 */ - __u32 set_uuid2; /* 14 Raid set identifier #3 */ - __u32 set_uuid3; /* 15 Raid set identifier #4 */ - __u32 gstate_creserved[MD_SB_GENERIC_CONSTANT_WORDS - 16]; - - /* - * Generic state information - */ - __u32 utime; /* 0 Superblock update time */ - __u32 state; /* 1 State bits (clean, ...) */ - __u32 active_disks; /* 2 Number of currently active disks */ - __u32 working_disks; /* 3 Number of working disks */ - __u32 failed_disks; /* 4 Number of failed disks */ - __u32 spare_disks; /* 5 Number of spare disks */ - __u32 sb_csum; /* 6 checksum of the whole superblock */ -#ifdef __BIG_ENDIAN - __u32 events_hi; /* 7 high-order of superblock update count */ - __u32 events_lo; /* 8 low-order of superblock update count */ - __u32 cp_events_hi; /* 9 high-order of checkpoint update count */ - __u32 cp_events_lo; /* 10 low-order of checkpoint update count */ -#else - __u32 events_lo; /* 7 low-order of superblock update count */ - __u32 events_hi; /* 8 high-order of superblock update count */ - __u32 cp_events_lo; /* 9 low-order of checkpoint update count */ - __u32 cp_events_hi; /* 10 high-order of checkpoint update count */ -#endif - __u32 recovery_cp; /* 11 recovery checkpoint sector count */ - /* There are only valid for minor_version > 90 */ - __u64 reshape_position; /* 12,13 next address in array-space for reshape */ - __u32 new_level; /* 14 new level we are reshaping to */ - __u32 delta_disks; /* 15 change in number of raid_disks */ - __u32 new_layout; /* 16 new layout */ - __u32 new_chunk; /* 17 new chunk size (bytes) */ - __u32 gstate_sreserved[MD_SB_GENERIC_STATE_WORDS - 18]; - - /* - * Personality information - */ - __u32 layout; /* 0 the array's physical layout */ - __u32 chunk_size; /* 1 chunk size in bytes */ - __u32 root_pv; /* 2 LV root PV */ - __u32 root_block; /* 3 LV root block */ - __u32 pstate_reserved[MD_SB_PERSONALITY_WORDS - 4]; - - /* - * Disks information - */ - mdp_disk_t disks[MD_SB_DISKS]; - - /* - * Reserved - */ - __u32 reserved[MD_SB_RESERVED_WORDS]; - - /* - * Active descriptor - */ - mdp_disk_t this_disk; - -} mdp_super_t; - -static inline __u64 md_event(mdp_super_t *sb) { - __u64 ev = sb->events_hi; - return (ev<<32)| sb->events_lo; -} - -#define MD_SUPERBLOCK_1_TIME_SEC_MASK ((1ULL<<40) - 1) - -/* - * The version-1 superblock : - * All numeric fields are little-endian. - * - * total size: 256 bytes plus 2 per device. - * 1K allows 384 devices. - */ -struct mdp_superblock_1 { - /* constant array information - 128 bytes */ - __le32 magic; /* MD_SB_MAGIC: 0xa92b4efc - little endian */ - __le32 major_version; /* 1 */ - __le32 feature_map; /* bit 0 set if 'bitmap_offset' is meaningful */ - __le32 pad0; /* always set to 0 when writing */ - - __u8 set_uuid[16]; /* user-space generated. */ - char set_name[32]; /* set and interpreted by user-space */ - - __le64 ctime; /* lo 40 bits are seconds, top 24 are microseconds or 0*/ - __le32 level; /* -4 (multipath), -1 (linear), 0,1,4,5 */ - __le32 layout; /* only for raid5 and raid10 currently */ - __le64 size; /* used size of component devices, in 512byte sectors */ - - __le32 chunksize; /* in 512byte sectors */ - __le32 raid_disks; - __le32 bitmap_offset; /* sectors after start of superblock that bitmap starts - * NOTE: signed, so bitmap can be before superblock - * only meaningful of feature_map[0] is set. - */ - - /* These are only valid with feature bit '4' */ - __le32 new_level; /* new level we are reshaping to */ - __le64 reshape_position; /* next address in array-space for reshape */ - __le32 delta_disks; /* change in number of raid_disks */ - __le32 new_layout; /* new layout */ - __le32 new_chunk; /* new chunk size (512byte sectors) */ - __le32 new_offset; /* signed number to add to data_offset in new - * layout. 0 == no-change. This can be - * different on each device in the array. - */ - - /* constant this-device information - 64 bytes */ - __le64 data_offset; /* sector start of data, often 0 */ - __le64 data_size; /* sectors in this device that can be used for data */ - __le64 super_offset; /* sector start of this superblock */ - __le64 recovery_offset;/* sectors before this offset (from data_offset) have been recovered */ - __le32 dev_number; /* permanent identifier of this device - not role in raid */ - __le32 cnt_corrected_read; /* number of read errors that were corrected by re-writing */ - __u8 device_uuid[16]; /* user-space setable, ignored by kernel */ - __u8 devflags; /* per-device flags. Only one defined...*/ -#define WriteMostly1 1 /* mask for writemostly flag in above */ - /* Bad block log. If there are any bad blocks the feature flag is set. - * If offset and size are non-zero, that space is reserved and available - */ - __u8 bblog_shift; /* shift from sectors to block size */ - __le16 bblog_size; /* number of sectors reserved for list */ - __le32 bblog_offset; /* sector offset from superblock to bblog, - * signed - not unsigned */ - - /* array state information - 64 bytes */ - __le64 utime; /* 40 bits second, 24 bits microseconds */ - __le64 events; /* incremented when superblock updated */ - __le64 resync_offset; /* data before this offset (from data_offset) known to be in sync */ - __le32 sb_csum; /* checksum up to devs[max_dev] */ - __le32 max_dev; /* size of devs[] array to consider */ - __u8 pad3[64-32]; /* set to 0 when writing */ - - /* device state information. Indexed by dev_number. - * 2 bytes per device - * Note there are no per-device state flags. State information is rolled - * into the 'roles' value. If a device is spare or faulty, then it doesn't - * have a meaningful role. - */ - __le16 dev_roles[0]; /* role in array, or 0xffff for a spare, or 0xfffe for faulty */ -}; - -/* feature_map bits */ -#define MD_FEATURE_BITMAP_OFFSET 1 -#define MD_FEATURE_RECOVERY_OFFSET 2 /* recovery_offset is present and - * must be honoured - */ -#define MD_FEATURE_RESHAPE_ACTIVE 4 -#define MD_FEATURE_BAD_BLOCKS 8 /* badblock list is not empty */ -#define MD_FEATURE_REPLACEMENT 16 /* This device is replacing an - * active device with same 'role'. - * 'recovery_offset' is also set. - */ -#define MD_FEATURE_RESHAPE_BACKWARDS 32 /* Reshape doesn't change number - * of devices, but is going - * backwards anyway. - */ -#define MD_FEATURE_NEW_OFFSET 64 /* new_offset must be honoured */ -#define MD_FEATURE_ALL (MD_FEATURE_BITMAP_OFFSET \ - |MD_FEATURE_RECOVERY_OFFSET \ - |MD_FEATURE_RESHAPE_ACTIVE \ - |MD_FEATURE_BAD_BLOCKS \ - |MD_FEATURE_REPLACEMENT \ - |MD_FEATURE_RESHAPE_BACKWARDS \ - |MD_FEATURE_NEW_OFFSET \ - ) - -#endif diff --git a/include/linux/raid/md_u.h b/include/linux/raid/md_u.h index fb1abb3..358c04b 100644 --- a/include/linux/raid/md_u.h +++ b/include/linux/raid/md_u.h @@ -11,149 +11,10 @@ (for example /usr/src/linux/COPYING); if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - #ifndef _MD_U_H #define _MD_U_H -/* - * Different major versions are not compatible. - * Different minor versions are only downward compatible. - * Different patchlevel versions are downward and upward compatible. - */ -#define MD_MAJOR_VERSION 0 -#define MD_MINOR_VERSION 90 -/* - * MD_PATCHLEVEL_VERSION indicates kernel functionality. - * >=1 means different superblock formats are selectable using SET_ARRAY_INFO - * and major_version/minor_version accordingly - * >=2 means that Internal bitmaps are supported by setting MD_SB_BITMAP_PRESENT - * in the super status byte - * >=3 means that bitmap superblock version 4 is supported, which uses - * little-ending representation rather than host-endian - */ -#define MD_PATCHLEVEL_VERSION 3 - -/* ioctls */ - -/* status */ -#define RAID_VERSION _IOR (MD_MAJOR, 0x10, mdu_version_t) -#define GET_ARRAY_INFO _IOR (MD_MAJOR, 0x11, mdu_array_info_t) -#define GET_DISK_INFO _IOR (MD_MAJOR, 0x12, mdu_disk_info_t) -#define PRINT_RAID_DEBUG _IO (MD_MAJOR, 0x13) -#define RAID_AUTORUN _IO (MD_MAJOR, 0x14) -#define GET_BITMAP_FILE _IOR (MD_MAJOR, 0x15, mdu_bitmap_file_t) - -/* configuration */ -#define CLEAR_ARRAY _IO (MD_MAJOR, 0x20) -#define ADD_NEW_DISK _IOW (MD_MAJOR, 0x21, mdu_disk_info_t) -#define HOT_REMOVE_DISK _IO (MD_MAJOR, 0x22) -#define SET_ARRAY_INFO _IOW (MD_MAJOR, 0x23, mdu_array_info_t) -#define SET_DISK_INFO _IO (MD_MAJOR, 0x24) -#define WRITE_RAID_INFO _IO (MD_MAJOR, 0x25) -#define UNPROTECT_ARRAY _IO (MD_MAJOR, 0x26) -#define PROTECT_ARRAY _IO (MD_MAJOR, 0x27) -#define HOT_ADD_DISK _IO (MD_MAJOR, 0x28) -#define SET_DISK_FAULTY _IO (MD_MAJOR, 0x29) -#define HOT_GENERATE_ERROR _IO (MD_MAJOR, 0x2a) -#define SET_BITMAP_FILE _IOW (MD_MAJOR, 0x2b, int) +#include -/* usage */ -#define RUN_ARRAY _IOW (MD_MAJOR, 0x30, mdu_param_t) -/* 0x31 was START_ARRAY */ -#define STOP_ARRAY _IO (MD_MAJOR, 0x32) -#define STOP_ARRAY_RO _IO (MD_MAJOR, 0x33) -#define RESTART_ARRAY_RW _IO (MD_MAJOR, 0x34) - -/* 63 partitions with the alternate major number (mdp) */ -#define MdpMinorShift 6 -#ifdef __KERNEL__ extern int mdp_major; -#endif - -typedef struct mdu_version_s { - int major; - int minor; - int patchlevel; -} mdu_version_t; - -typedef struct mdu_array_info_s { - /* - * Generic constant information - */ - int major_version; - int minor_version; - int patch_version; - int ctime; - int level; - int size; - int nr_disks; - int raid_disks; - int md_minor; - int not_persistent; - - /* - * Generic state information - */ - int utime; /* 0 Superblock update time */ - int state; /* 1 State bits (clean, ...) */ - int active_disks; /* 2 Number of currently active disks */ - int working_disks; /* 3 Number of working disks */ - int failed_disks; /* 4 Number of failed disks */ - int spare_disks; /* 5 Number of spare disks */ - - /* - * Personality information - */ - int layout; /* 0 the array's physical layout */ - int chunk_size; /* 1 chunk size in bytes */ - -} mdu_array_info_t; - -/* non-obvious values for 'level' */ -#define LEVEL_MULTIPATH (-4) -#define LEVEL_LINEAR (-1) -#define LEVEL_FAULTY (-5) - -/* we need a value for 'no level specified' and 0 - * means 'raid0', so we need something else. This is - * for internal use only - */ -#define LEVEL_NONE (-1000000) - -typedef struct mdu_disk_info_s { - /* - * configuration/status of one particular disk - */ - int number; - int major; - int minor; - int raid_disk; - int state; - -} mdu_disk_info_t; - -typedef struct mdu_start_info_s { - /* - * configuration/status of one particular disk - */ - int major; - int minor; - int raid_disk; - int state; - -} mdu_start_info_t; - -typedef struct mdu_bitmap_file_s -{ - char pathname[4096]; -} mdu_bitmap_file_t; - -typedef struct mdu_param_s -{ - int personality; /* 1,2,3,4 */ - int chunk_size; /* in bytes */ - int max_fault; /* unused for now */ -} mdu_param_t; - #endif - diff --git a/include/uapi/linux/raid/Kbuild b/include/uapi/linux/raid/Kbuild index aafaa5a..e2c3d25 100644 --- a/include/uapi/linux/raid/Kbuild +++ b/include/uapi/linux/raid/Kbuild @@ -1 +1,3 @@ # UAPI Header export list +header-y += md_p.h +header-y += md_u.h diff --git a/include/uapi/linux/raid/md_p.h b/include/uapi/linux/raid/md_p.h new file mode 100644 index 0000000..ee75353 --- /dev/null +++ b/include/uapi/linux/raid/md_p.h @@ -0,0 +1,301 @@ +/* + md_p.h : physical layout of Linux RAID devices + Copyright (C) 1996-98 Ingo Molnar, Gadi Oxman + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + You should have received a copy of the GNU General Public License + (for example /usr/src/linux/COPYING); if not, write to the Free + Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#ifndef _MD_P_H +#define _MD_P_H + +#include + +/* + * RAID superblock. + * + * The RAID superblock maintains some statistics on each RAID configuration. + * Each real device in the RAID set contains it near the end of the device. + * Some of the ideas are copied from the ext2fs implementation. + * + * We currently use 4096 bytes as follows: + * + * word offset function + * + * 0 - 31 Constant generic RAID device information. + * 32 - 63 Generic state information. + * 64 - 127 Personality specific information. + * 128 - 511 12 32-words descriptors of the disks in the raid set. + * 512 - 911 Reserved. + * 912 - 1023 Disk specific descriptor. + */ + +/* + * If x is the real device size in bytes, we return an apparent size of: + * + * y = (x & ~(MD_RESERVED_BYTES - 1)) - MD_RESERVED_BYTES + * + * and place the 4kB superblock at offset y. + */ +#define MD_RESERVED_BYTES (64 * 1024) +#define MD_RESERVED_SECTORS (MD_RESERVED_BYTES / 512) + +#define MD_NEW_SIZE_SECTORS(x) ((x & ~(MD_RESERVED_SECTORS - 1)) - MD_RESERVED_SECTORS) + +#define MD_SB_BYTES 4096 +#define MD_SB_WORDS (MD_SB_BYTES / 4) +#define MD_SB_SECTORS (MD_SB_BYTES / 512) + +/* + * The following are counted in 32-bit words + */ +#define MD_SB_GENERIC_OFFSET 0 +#define MD_SB_PERSONALITY_OFFSET 64 +#define MD_SB_DISKS_OFFSET 128 +#define MD_SB_DESCRIPTOR_OFFSET 992 + +#define MD_SB_GENERIC_CONSTANT_WORDS 32 +#define MD_SB_GENERIC_STATE_WORDS 32 +#define MD_SB_GENERIC_WORDS (MD_SB_GENERIC_CONSTANT_WORDS + MD_SB_GENERIC_STATE_WORDS) +#define MD_SB_PERSONALITY_WORDS 64 +#define MD_SB_DESCRIPTOR_WORDS 32 +#define MD_SB_DISKS 27 +#define MD_SB_DISKS_WORDS (MD_SB_DISKS*MD_SB_DESCRIPTOR_WORDS) +#define MD_SB_RESERVED_WORDS (1024 - MD_SB_GENERIC_WORDS - MD_SB_PERSONALITY_WORDS - MD_SB_DISKS_WORDS - MD_SB_DESCRIPTOR_WORDS) +#define MD_SB_EQUAL_WORDS (MD_SB_GENERIC_WORDS + MD_SB_PERSONALITY_WORDS + MD_SB_DISKS_WORDS) + +/* + * Device "operational" state bits + */ +#define MD_DISK_FAULTY 0 /* disk is faulty / operational */ +#define MD_DISK_ACTIVE 1 /* disk is running or spare disk */ +#define MD_DISK_SYNC 2 /* disk is in sync with the raid set */ +#define MD_DISK_REMOVED 3 /* disk is in sync with the raid set */ + +#define MD_DISK_WRITEMOSTLY 9 /* disk is "write-mostly" is RAID1 config. + * read requests will only be sent here in + * dire need + */ + +typedef struct mdp_device_descriptor_s { + __u32 number; /* 0 Device number in the entire set */ + __u32 major; /* 1 Device major number */ + __u32 minor; /* 2 Device minor number */ + __u32 raid_disk; /* 3 The role of the device in the raid set */ + __u32 state; /* 4 Operational state */ + __u32 reserved[MD_SB_DESCRIPTOR_WORDS - 5]; +} mdp_disk_t; + +#define MD_SB_MAGIC 0xa92b4efc + +/* + * Superblock state bits + */ +#define MD_SB_CLEAN 0 +#define MD_SB_ERRORS 1 + +#define MD_SB_BITMAP_PRESENT 8 /* bitmap may be present nearby */ + +/* + * Notes: + * - if an array is being reshaped (restriped) in order to change the + * the number of active devices in the array, 'raid_disks' will be + * the larger of the old and new numbers. 'delta_disks' will + * be the "new - old". So if +ve, raid_disks is the new value, and + * "raid_disks-delta_disks" is the old. If -ve, raid_disks is the + * old value and "raid_disks+delta_disks" is the new (smaller) value. + */ + + +typedef struct mdp_superblock_s { + /* + * Constant generic information + */ + __u32 md_magic; /* 0 MD identifier */ + __u32 major_version; /* 1 major version to which the set conforms */ + __u32 minor_version; /* 2 minor version ... */ + __u32 patch_version; /* 3 patchlevel version ... */ + __u32 gvalid_words; /* 4 Number of used words in this section */ + __u32 set_uuid0; /* 5 Raid set identifier */ + __u32 ctime; /* 6 Creation time */ + __u32 level; /* 7 Raid personality */ + __u32 size; /* 8 Apparent size of each individual disk */ + __u32 nr_disks; /* 9 total disks in the raid set */ + __u32 raid_disks; /* 10 disks in a fully functional raid set */ + __u32 md_minor; /* 11 preferred MD minor device number */ + __u32 not_persistent; /* 12 does it have a persistent superblock */ + __u32 set_uuid1; /* 13 Raid set identifier #2 */ + __u32 set_uuid2; /* 14 Raid set identifier #3 */ + __u32 set_uuid3; /* 15 Raid set identifier #4 */ + __u32 gstate_creserved[MD_SB_GENERIC_CONSTANT_WORDS - 16]; + + /* + * Generic state information + */ + __u32 utime; /* 0 Superblock update time */ + __u32 state; /* 1 State bits (clean, ...) */ + __u32 active_disks; /* 2 Number of currently active disks */ + __u32 working_disks; /* 3 Number of working disks */ + __u32 failed_disks; /* 4 Number of failed disks */ + __u32 spare_disks; /* 5 Number of spare disks */ + __u32 sb_csum; /* 6 checksum of the whole superblock */ +#ifdef __BIG_ENDIAN + __u32 events_hi; /* 7 high-order of superblock update count */ + __u32 events_lo; /* 8 low-order of superblock update count */ + __u32 cp_events_hi; /* 9 high-order of checkpoint update count */ + __u32 cp_events_lo; /* 10 low-order of checkpoint update count */ +#else + __u32 events_lo; /* 7 low-order of superblock update count */ + __u32 events_hi; /* 8 high-order of superblock update count */ + __u32 cp_events_lo; /* 9 low-order of checkpoint update count */ + __u32 cp_events_hi; /* 10 high-order of checkpoint update count */ +#endif + __u32 recovery_cp; /* 11 recovery checkpoint sector count */ + /* There are only valid for minor_version > 90 */ + __u64 reshape_position; /* 12,13 next address in array-space for reshape */ + __u32 new_level; /* 14 new level we are reshaping to */ + __u32 delta_disks; /* 15 change in number of raid_disks */ + __u32 new_layout; /* 16 new layout */ + __u32 new_chunk; /* 17 new chunk size (bytes) */ + __u32 gstate_sreserved[MD_SB_GENERIC_STATE_WORDS - 18]; + + /* + * Personality information + */ + __u32 layout; /* 0 the array's physical layout */ + __u32 chunk_size; /* 1 chunk size in bytes */ + __u32 root_pv; /* 2 LV root PV */ + __u32 root_block; /* 3 LV root block */ + __u32 pstate_reserved[MD_SB_PERSONALITY_WORDS - 4]; + + /* + * Disks information + */ + mdp_disk_t disks[MD_SB_DISKS]; + + /* + * Reserved + */ + __u32 reserved[MD_SB_RESERVED_WORDS]; + + /* + * Active descriptor + */ + mdp_disk_t this_disk; + +} mdp_super_t; + +static inline __u64 md_event(mdp_super_t *sb) { + __u64 ev = sb->events_hi; + return (ev<<32)| sb->events_lo; +} + +#define MD_SUPERBLOCK_1_TIME_SEC_MASK ((1ULL<<40) - 1) + +/* + * The version-1 superblock : + * All numeric fields are little-endian. + * + * total size: 256 bytes plus 2 per device. + * 1K allows 384 devices. + */ +struct mdp_superblock_1 { + /* constant array information - 128 bytes */ + __le32 magic; /* MD_SB_MAGIC: 0xa92b4efc - little endian */ + __le32 major_version; /* 1 */ + __le32 feature_map; /* bit 0 set if 'bitmap_offset' is meaningful */ + __le32 pad0; /* always set to 0 when writing */ + + __u8 set_uuid[16]; /* user-space generated. */ + char set_name[32]; /* set and interpreted by user-space */ + + __le64 ctime; /* lo 40 bits are seconds, top 24 are microseconds or 0*/ + __le32 level; /* -4 (multipath), -1 (linear), 0,1,4,5 */ + __le32 layout; /* only for raid5 and raid10 currently */ + __le64 size; /* used size of component devices, in 512byte sectors */ + + __le32 chunksize; /* in 512byte sectors */ + __le32 raid_disks; + __le32 bitmap_offset; /* sectors after start of superblock that bitmap starts + * NOTE: signed, so bitmap can be before superblock + * only meaningful of feature_map[0] is set. + */ + + /* These are only valid with feature bit '4' */ + __le32 new_level; /* new level we are reshaping to */ + __le64 reshape_position; /* next address in array-space for reshape */ + __le32 delta_disks; /* change in number of raid_disks */ + __le32 new_layout; /* new layout */ + __le32 new_chunk; /* new chunk size (512byte sectors) */ + __le32 new_offset; /* signed number to add to data_offset in new + * layout. 0 == no-change. This can be + * different on each device in the array. + */ + + /* constant this-device information - 64 bytes */ + __le64 data_offset; /* sector start of data, often 0 */ + __le64 data_size; /* sectors in this device that can be used for data */ + __le64 super_offset; /* sector start of this superblock */ + __le64 recovery_offset;/* sectors before this offset (from data_offset) have been recovered */ + __le32 dev_number; /* permanent identifier of this device - not role in raid */ + __le32 cnt_corrected_read; /* number of read errors that were corrected by re-writing */ + __u8 device_uuid[16]; /* user-space setable, ignored by kernel */ + __u8 devflags; /* per-device flags. Only one defined...*/ +#define WriteMostly1 1 /* mask for writemostly flag in above */ + /* Bad block log. If there are any bad blocks the feature flag is set. + * If offset and size are non-zero, that space is reserved and available + */ + __u8 bblog_shift; /* shift from sectors to block size */ + __le16 bblog_size; /* number of sectors reserved for list */ + __le32 bblog_offset; /* sector offset from superblock to bblog, + * signed - not unsigned */ + + /* array state information - 64 bytes */ + __le64 utime; /* 40 bits second, 24 bits microseconds */ + __le64 events; /* incremented when superblock updated */ + __le64 resync_offset; /* data before this offset (from data_offset) known to be in sync */ + __le32 sb_csum; /* checksum up to devs[max_dev] */ + __le32 max_dev; /* size of devs[] array to consider */ + __u8 pad3[64-32]; /* set to 0 when writing */ + + /* device state information. Indexed by dev_number. + * 2 bytes per device + * Note there are no per-device state flags. State information is rolled + * into the 'roles' value. If a device is spare or faulty, then it doesn't + * have a meaningful role. + */ + __le16 dev_roles[0]; /* role in array, or 0xffff for a spare, or 0xfffe for faulty */ +}; + +/* feature_map bits */ +#define MD_FEATURE_BITMAP_OFFSET 1 +#define MD_FEATURE_RECOVERY_OFFSET 2 /* recovery_offset is present and + * must be honoured + */ +#define MD_FEATURE_RESHAPE_ACTIVE 4 +#define MD_FEATURE_BAD_BLOCKS 8 /* badblock list is not empty */ +#define MD_FEATURE_REPLACEMENT 16 /* This device is replacing an + * active device with same 'role'. + * 'recovery_offset' is also set. + */ +#define MD_FEATURE_RESHAPE_BACKWARDS 32 /* Reshape doesn't change number + * of devices, but is going + * backwards anyway. + */ +#define MD_FEATURE_NEW_OFFSET 64 /* new_offset must be honoured */ +#define MD_FEATURE_ALL (MD_FEATURE_BITMAP_OFFSET \ + |MD_FEATURE_RECOVERY_OFFSET \ + |MD_FEATURE_RESHAPE_ACTIVE \ + |MD_FEATURE_BAD_BLOCKS \ + |MD_FEATURE_REPLACEMENT \ + |MD_FEATURE_RESHAPE_BACKWARDS \ + |MD_FEATURE_NEW_OFFSET \ + ) + +#endif diff --git a/include/uapi/linux/raid/md_u.h b/include/uapi/linux/raid/md_u.h new file mode 100644 index 0000000..4133e74 --- /dev/null +++ b/include/uapi/linux/raid/md_u.h @@ -0,0 +1,155 @@ +/* + md_u.h : user <=> kernel API between Linux raidtools and RAID drivers + Copyright (C) 1998 Ingo Molnar + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + You should have received a copy of the GNU General Public License + (for example /usr/src/linux/COPYING); if not, write to the Free + Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#ifndef _UAPI_MD_U_H +#define _UAPI_MD_U_H + +/* + * Different major versions are not compatible. + * Different minor versions are only downward compatible. + * Different patchlevel versions are downward and upward compatible. + */ +#define MD_MAJOR_VERSION 0 +#define MD_MINOR_VERSION 90 +/* + * MD_PATCHLEVEL_VERSION indicates kernel functionality. + * >=1 means different superblock formats are selectable using SET_ARRAY_INFO + * and major_version/minor_version accordingly + * >=2 means that Internal bitmaps are supported by setting MD_SB_BITMAP_PRESENT + * in the super status byte + * >=3 means that bitmap superblock version 4 is supported, which uses + * little-ending representation rather than host-endian + */ +#define MD_PATCHLEVEL_VERSION 3 + +/* ioctls */ + +/* status */ +#define RAID_VERSION _IOR (MD_MAJOR, 0x10, mdu_version_t) +#define GET_ARRAY_INFO _IOR (MD_MAJOR, 0x11, mdu_array_info_t) +#define GET_DISK_INFO _IOR (MD_MAJOR, 0x12, mdu_disk_info_t) +#define PRINT_RAID_DEBUG _IO (MD_MAJOR, 0x13) +#define RAID_AUTORUN _IO (MD_MAJOR, 0x14) +#define GET_BITMAP_FILE _IOR (MD_MAJOR, 0x15, mdu_bitmap_file_t) + +/* configuration */ +#define CLEAR_ARRAY _IO (MD_MAJOR, 0x20) +#define ADD_NEW_DISK _IOW (MD_MAJOR, 0x21, mdu_disk_info_t) +#define HOT_REMOVE_DISK _IO (MD_MAJOR, 0x22) +#define SET_ARRAY_INFO _IOW (MD_MAJOR, 0x23, mdu_array_info_t) +#define SET_DISK_INFO _IO (MD_MAJOR, 0x24) +#define WRITE_RAID_INFO _IO (MD_MAJOR, 0x25) +#define UNPROTECT_ARRAY _IO (MD_MAJOR, 0x26) +#define PROTECT_ARRAY _IO (MD_MAJOR, 0x27) +#define HOT_ADD_DISK _IO (MD_MAJOR, 0x28) +#define SET_DISK_FAULTY _IO (MD_MAJOR, 0x29) +#define HOT_GENERATE_ERROR _IO (MD_MAJOR, 0x2a) +#define SET_BITMAP_FILE _IOW (MD_MAJOR, 0x2b, int) + +/* usage */ +#define RUN_ARRAY _IOW (MD_MAJOR, 0x30, mdu_param_t) +/* 0x31 was START_ARRAY */ +#define STOP_ARRAY _IO (MD_MAJOR, 0x32) +#define STOP_ARRAY_RO _IO (MD_MAJOR, 0x33) +#define RESTART_ARRAY_RW _IO (MD_MAJOR, 0x34) + +/* 63 partitions with the alternate major number (mdp) */ +#define MdpMinorShift 6 + +typedef struct mdu_version_s { + int major; + int minor; + int patchlevel; +} mdu_version_t; + +typedef struct mdu_array_info_s { + /* + * Generic constant information + */ + int major_version; + int minor_version; + int patch_version; + int ctime; + int level; + int size; + int nr_disks; + int raid_disks; + int md_minor; + int not_persistent; + + /* + * Generic state information + */ + int utime; /* 0 Superblock update time */ + int state; /* 1 State bits (clean, ...) */ + int active_disks; /* 2 Number of currently active disks */ + int working_disks; /* 3 Number of working disks */ + int failed_disks; /* 4 Number of failed disks */ + int spare_disks; /* 5 Number of spare disks */ + + /* + * Personality information + */ + int layout; /* 0 the array's physical layout */ + int chunk_size; /* 1 chunk size in bytes */ + +} mdu_array_info_t; + +/* non-obvious values for 'level' */ +#define LEVEL_MULTIPATH (-4) +#define LEVEL_LINEAR (-1) +#define LEVEL_FAULTY (-5) + +/* we need a value for 'no level specified' and 0 + * means 'raid0', so we need something else. This is + * for internal use only + */ +#define LEVEL_NONE (-1000000) + +typedef struct mdu_disk_info_s { + /* + * configuration/status of one particular disk + */ + int number; + int major; + int minor; + int raid_disk; + int state; + +} mdu_disk_info_t; + +typedef struct mdu_start_info_s { + /* + * configuration/status of one particular disk + */ + int major; + int minor; + int raid_disk; + int state; + +} mdu_start_info_t; + +typedef struct mdu_bitmap_file_s +{ + char pathname[4096]; +} mdu_bitmap_file_t; + +typedef struct mdu_param_s +{ + int personality; /* 1,2,3,4 */ + int chunk_size; /* in bytes */ + int max_fault; /* unused for now */ +} mdu_param_t; + +#endif /* _UAPI_MD_U_H */ -- cgit v0.10.2 From 5c5b06c3c09510a2e90f6453266823dc6f940c70 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 16 Aug 2012 07:49:31 +0000 Subject: ARM: kprobes: make more tests conditional The mls instruction is not available in ARMv6K or below, so we should make the test conditional on at least ARMv7. ldrexd/strexd are available in ARMv6K or ARMv7, which we can test by checking the CONFIG_CPU_32v6K symbol. /tmp/ccuMTZ8D.s: Assembler messages: /tmp/ccuMTZ8D.s:22188: Error: selected processor does not support ARM mode `mls r0,r1,r2,r3' /tmp/ccuMTZ8D.s:22222: Error: selected processor does not support ARM mode `mlshi r7,r8,r9,r10' /tmp/ccuMTZ8D.s:22252: Error: selected processor does not support ARM mode `mls lr,r1,r2,r13' Signed-off-by: Arnd Bergmann Acked-by: Jon Medhurst Acked-by: Nicolas Pitre Cc: Russell King Cc: Leif Lindholm diff --git a/arch/arm/kernel/kprobes-test-arm.c b/arch/arm/kernel/kprobes-test-arm.c index 38c1a3b..8393129 100644 --- a/arch/arm/kernel/kprobes-test-arm.c +++ b/arch/arm/kernel/kprobes-test-arm.c @@ -366,7 +366,9 @@ void kprobe_arm_test_cases(void) TEST_UNSUPPORTED(".word 0xe04f0392 @ umaal r0, pc, r2, r3") TEST_UNSUPPORTED(".word 0xe0500090 @ undef") TEST_UNSUPPORTED(".word 0xe05fff9f @ undef") +#endif +#if __LINUX_ARM_ARCH__ >= 7 TEST_RRR( "mls r0, r",1, VAL1,", r",2, VAL2,", r",3, VAL3,"") TEST_RRR( "mlshi r7, r",8, VAL3,", r",9, VAL1,", r",10, VAL2,"") TEST_RR( "mls lr, r",1, VAL2,", r",2, VAL3,", r13") @@ -456,6 +458,8 @@ void kprobe_arm_test_cases(void) TEST_UNSUPPORTED(".word 0xe1700090") /* Unallocated space */ #if __LINUX_ARM_ARCH__ >= 6 TEST_UNSUPPORTED("ldrex r2, [sp]") +#endif +#if (__LINUX_ARM_ARCH__ >= 7) || defined(CONFIG_CPU_32v6K) TEST_UNSUPPORTED("strexd r0, r2, r3, [sp]") TEST_UNSUPPORTED("ldrexd r2, r3, [sp]") TEST_UNSUPPORTED("strexb r0, r2, [sp]") -- cgit v0.10.2 From 05c769823cd0648fc56c8f0289c5f14d465389a8 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 16 Aug 2012 07:49:26 +0000 Subject: ARM: export set_irq_flags The recently added Emma Mobile GPIO driver calls set_irq_flags and irq_set_chip_and_handler for the interrupts it exports and it can be built as a module, which currently fails with ERROR: "set_irq_flags" [drivers/gpio/gpio-em.ko] undefined! We either need to replace the call to set_irq_flags with something else or export that function. This patch does the latter. Signed-off-by: Arnd Bergmann Acked-by: Thomas Gleixner Cc: Magnus Damm Cc: Linus Walleij Cc: Rafael J. Wysocki Cc: Russell King diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index 16cedb4..8961650 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -34,6 +34,7 @@ #include #include #include +#include #include #include @@ -109,6 +110,7 @@ void set_irq_flags(unsigned int irq, unsigned int iflags) /* Order is clear bits in "clr" then set bits in "set" */ irq_modify_status(irq, clr, set & ~clr); } +EXPORT_SYMBOL_GPL(set_irq_flags); void __init init_IRQ(void) { -- cgit v0.10.2 From 31d2a638a91340d00502d397e558271f516b4f17 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sun, 7 Oct 2012 20:35:18 +0000 Subject: ARM: Fix another build warning in arch/arm/mm/alignment.c One such warning was recently fixed in a761cebf "ARM: Fix build warning in arch/arm/mm/alignment.c" but only for the thumb2 case, this fixes the other half. arch/arm/mm/alignment.c: In function 'do_alignment': arch/arm/mm/alignment.c:327:15: error: 'offset.un' may be used uninitialized in this function arch/arm/mm/alignment.c:748:21: note: 'offset.un' was declared here Signed-off-by: Arnd Bergmann Cc: Russell King diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c index b9f60eb..023f4437 100644 --- a/arch/arm/mm/alignment.c +++ b/arch/arm/mm/alignment.c @@ -856,8 +856,10 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs) if (thumb2_32b) { offset.un = 0; handler = do_alignment_t32_to_handler(&instr, regs, &offset); - } else + } else { + offset.un = 0; handler = do_alignment_ldmstm; + } break; default: -- cgit v0.10.2 From f3accb122f2c758494a6db3b9e9a8cd62aafcf83 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 1 Oct 2012 14:47:31 +0000 Subject: ARM: export default read_current_timer read_current_timer is used by get_cycles since "ARM: 7538/1: delay: add registration mechanism for delay timer sources", and get_cycles can be used by device drivers in loadable modules, so it has to be exported. Without this patch, building imote2_defconfig fails with ERROR: "read_current_timer" [crypto/tcrypt.ko] undefined! Signed-off-by: Arnd Bergmann Cc: Stephen Boyd Cc: Jonathan Austin Cc: Will Deacon Cc: Russell King diff --git a/arch/arm/lib/delay.c b/arch/arm/lib/delay.c index 9d0a300..0dc5385 100644 --- a/arch/arm/lib/delay.c +++ b/arch/arm/lib/delay.c @@ -45,6 +45,7 @@ int read_current_timer(unsigned long *timer_val) *timer_val = delay_timer->read_current_timer(); return 0; } +EXPORT_SYMBOL_GPL(read_current_timer); static void __timer_delay(unsigned long cycles) { -- cgit v0.10.2 From f880b67dcbdedb49453f88d2ccb1a0937b046d82 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 9 Oct 2012 10:33:52 +0000 Subject: ARM: Xen: fix initial build problems * The XEN_BALLOON code requires the balloon infrastructure that is not getting built on ARM. * The tmem hypercall is not available on ARM * ARMv6 does not support cmpxchg on 16-bit words that are used in the Xen grant table code, so we must ensure that Xen support is only built on ARMv7-only kernels not combined ARMv6/v7 kernels. * sys-hypervisor.c needs to include linux/err.h in order to use the IS_ERR/PTR_ERR/ERR_PTR family of functions. Signed-off-by: Arnd Bergmann Acked-by: Ian Campbell Cc: Stefano Stabellini Cc: Konrad Rzeszutek Wilk Cc: Jeremy Fitzhardinge Cc: xen-devel@lists.xensource.com diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 6d2f7f5..e1d6ab2 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1846,6 +1846,7 @@ config XEN_DOM0 config XEN bool "Xen guest support on ARM (EXPERIMENTAL)" depends on EXPERIMENTAL && ARM && OF + depends on CPU_V7 && !CPU_V6 help Say Y if you want to run Linux in a Virtual Machine on Xen on ARM. diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index d4dffcd..126d8ce 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -3,6 +3,7 @@ menu "Xen driver support" config XEN_BALLOON bool "Xen memory balloon driver" + depends on !ARM default y help The balloon driver allows the Xen domain to request more memory from @@ -145,6 +146,7 @@ config SWIOTLB_XEN config XEN_TMEM bool + depends on !ARM default y if (CLEANCACHE || FRONTSWAP) help Shim to interface in-kernel Transcendent Memory hooks diff --git a/drivers/xen/sys-hypervisor.c b/drivers/xen/sys-hypervisor.c index 5e5ad7e2..66a0a14 100644 --- a/drivers/xen/sys-hypervisor.c +++ b/drivers/xen/sys-hypervisor.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include -- cgit v0.10.2 From 91802a8ef410810db58907d2ea4c4adc00ef4688 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 10 Aug 2012 11:12:20 +0000 Subject: ARM: pass -marm to gcc by default for both C and assembler The Linaro cross toolchain and probably others nowadays default to building in THUMB2 mode. When building a kernel for a CPU that does not support THUMB2, the compiler complains about incorrect flags. We can work around this by setting -marm for all non-T2 builds. -marm was passed unconditionally for C files previously, but nothing was passed to the gcc frontend when processing .S files, resulting in a warning. The assembler never defaults to ARM unless -Wa,-mthumb is supplied explicitly, so the files were still assembled correctly. This patch makes sure that -marm is passed for .S files too, and also avoids the redundant gcc -marm -mthumb in Thumb kernels. Without this patch, building assabet_defconfig results in: usr/initramfs_data.S:1:0: warning: target CPU does not support THUMB instructions [enabled by default] arch/arm/nwfpe/entry.S:1:0: warning: target CPU does not support THUMB instructions [enabled by default] firmware/cis/PCMLM28.cis.gen.S:1:0: warning: target CPU does not support THUMB instructions [enabled by default] (and many more) Signed-off-by: Arnd Bergmann Acked-by: Nicolas Pitre Acked-by: Dave Martin Cc: Russell King diff --git a/arch/arm/Makefile b/arch/arm/Makefile index f023e3a..5f914fc 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -21,8 +21,6 @@ endif OBJCOPYFLAGS :=-O binary -R .comment -S GZFLAGS :=-9 #KBUILD_CFLAGS +=-pipe -# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb: -KBUILD_CFLAGS +=$(call cc-option,-marm,) # Never generate .eh_frame KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) @@ -105,17 +103,20 @@ endif ifeq ($(CONFIG_THUMB2_KERNEL),y) AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it) AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W) -CFLAGS_THUMB2 :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN) -AFLAGS_THUMB2 :=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb +CFLAGS_ISA :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN) +AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb # Work around buggy relocation from gas if requested: ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y) CFLAGS_MODULE +=-fno-optimize-sibling-calls endif +else +CFLAGS_ISA :=$(call cc-option,-marm,) +AFLAGS_ISA :=$(CFLAGS_ISA) endif # Need -Uarm for gcc < 3.x -KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm -KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float +KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm +KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float CHECKFLAGS += -D__arm__ -- cgit v0.10.2 From edc88ceb0c7d285b9f58bc29a638cd8163b59989 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 30 Apr 2012 12:16:16 +0000 Subject: ARM: be really quiet when building with 'make -s' Sometimes we want the kernel build process to only print messages on errors, e.g. in automated build testing. This uses the "kecho" macro that the build system provides to hide a few informational messages. Nothing changes for a regular "make" or "make V=1". Without this patch, building any ARM kernel results in: Kernel: arch/arm/boot/Image is ready Kernel: arch/arm/boot/zImage is ready Signed-off-by: Arnd Bergmann Acked-by: Nicolas Pitre Cc: Russell King Cc: Catalin Marinas Cc: Michal Marek diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile index 3fdab01..f2aa09e 100644 --- a/arch/arm/boot/Makefile +++ b/arch/arm/boot/Makefile @@ -33,7 +33,7 @@ ifeq ($(CONFIG_XIP_KERNEL),y) $(obj)/xipImage: vmlinux FORCE $(call if_changed,objcopy) - @echo ' Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))' + $(kecho) ' Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))' $(obj)/Image $(obj)/zImage: FORCE @echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)' @@ -48,14 +48,14 @@ $(obj)/xipImage: FORCE $(obj)/Image: vmlinux FORCE $(call if_changed,objcopy) - @echo ' Kernel: $@ is ready' + $(kecho) ' Kernel: $@ is ready' $(obj)/compressed/vmlinux: $(obj)/Image FORCE $(Q)$(MAKE) $(build)=$(obj)/compressed $@ $(obj)/zImage: $(obj)/compressed/vmlinux FORCE $(call if_changed,objcopy) - @echo ' Kernel: $@ is ready' + $(kecho) ' Kernel: $@ is ready' endif @@ -90,7 +90,7 @@ fi $(obj)/uImage: $(obj)/zImage FORCE @$(check_for_multiple_loadaddr) $(call if_changed,uimage) - @echo ' Image $@ is ready' + $(kecho) ' Image $@ is ready' $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE $(Q)$(MAKE) $(build)=$(obj)/bootp $@ @@ -98,7 +98,7 @@ $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE $(obj)/bootpImage: $(obj)/bootp/bootp FORCE $(call if_changed,objcopy) - @echo ' Kernel: $@ is ready' + $(kecho) ' Kernel: $@ is ready' PHONY += initrd FORCE initrd: diff --git a/arch/arm/tools/Makefile b/arch/arm/tools/Makefile index 635cb18..cd60a81 100644 --- a/arch/arm/tools/Makefile +++ b/arch/arm/tools/Makefile @@ -5,6 +5,6 @@ # include/generated/mach-types.h: $(src)/gen-mach-types $(src)/mach-types - @echo ' Generating $@' + $(kecho) ' Generating $@' @mkdir -p $(dir $@) $(Q)$(AWK) -f $^ > $@ || { rm -f $@; /bin/false; } -- cgit v0.10.2 From f6d5d8a5ed60c726354605877e8f8214fb11cc02 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 30 Apr 2012 13:18:37 +0000 Subject: ARM: binfmt_flat: unused variable 'persistent' The flat_get_addr_from_rp() macro does not use the 'persistent' argument on ARM, causing a harmless compiler warning. A cast to void removes that warning. Without this patch, building at91x40_defconfig results in: fs/binfmt_flat.c: In function 'load_flat_file': fs/binfmt_flat.c:746:17: warning: unused variable 'persistent' [-Wunused-variable] Signed-off-by: Arnd Bergmann Acked-by: Greg Ungerer Cc: Russell King Cc: Bryan Wu diff --git a/arch/arm/include/asm/flat.h b/arch/arm/include/asm/flat.h index 59426a4..e847d23 100644 --- a/arch/arm/include/asm/flat.h +++ b/arch/arm/include/asm/flat.h @@ -8,7 +8,7 @@ #define flat_argvp_envp_on_stack() 1 #define flat_old_ram_flag(flags) (flags) #define flat_reloc_valid(reloc, size) ((reloc) <= (size)) -#define flat_get_addr_from_rp(rp, relval, flags, persistent) get_unaligned(rp) +#define flat_get_addr_from_rp(rp, relval, flags, persistent) ((void)persistent,get_unaligned(rp)) #define flat_put_addr_at_rp(rp, val, relval) put_unaligned(val,rp) #define flat_get_relocate_addr(rel) (rel) #define flat_set_persistent(relval, p) 0 -- cgit v0.10.2 From 8e7fc18b5eacc37b6e6fcf486ec4eafbfef91738 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 30 Apr 2012 13:18:46 +0000 Subject: ARM: warnings in arch/arm/include/asm/uaccess.h On NOMMU ARM, the __addr_ok() and __range_ok() macros do not evaluate their arguments, which may lead to harmless build warnings in some code where the variables are not used otherwise. Adding a cast to void gets rid of the warning and does not make any semantic changes. Without this patch, building at91x40_defconfig results in: fs/read_write.c: In function 'rw_copy_check_uvector': fs/read_write.c:684:9: warning: unused variable 'buf' [-Wunused-variable] Signed-off-by: Arnd Bergmann Acked-by: Greg Ungerer Cc: Russell King diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index 77bd79f..7e1f760 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -200,8 +200,8 @@ extern int __put_user_8(void *, unsigned long long); #define USER_DS KERNEL_DS #define segment_eq(a,b) (1) -#define __addr_ok(addr) (1) -#define __range_ok(addr,size) (0) +#define __addr_ok(addr) ((void)(addr),1) +#define __range_ok(addr,size) ((void)(addr),0) #define get_fs() (KERNEL_DS) static inline void set_fs(mm_segment_t fs) -- cgit v0.10.2 From 588377d6199034c36d335e7df5818b731fea072c Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Mon, 8 Oct 2012 20:37:30 -0700 Subject: rbd: reset BACKOFF if unable to re-queue If ceph_fault() is unable to queue work after a delay, it sets the BACKOFF connection flag so con_work() will attempt to do so. In con_work(), when BACKOFF is set, if queue_delayed_work() doesn't result in newly-queued work, it simply ignores this condition and proceeds as if no backoff delay were desired. There are two problems with this--one of which is a bug. The first problem is simply that the intended behavior is to back off, and if we aren't able queue the work item to run after a delay we're not doing that. The only reason queue_delayed_work() won't queue work is if the provided work item is already queued. In the messenger, this means that con_work() is already scheduled to be run again. So if we simply set the BACKOFF flag again when this occurs, we know the next con_work() call will again attempt to hold off activity on the connection until after the delay. The second problem--the bug--is a leak of a reference count. If queue_delayed_work() returns 0 in con_work(), con->ops->put() drops the connection reference held on entry to con_work(). However, processing is (was) allowed to continue, and at the end of the function a second con->ops->put() is called. This patch fixes both problems. Signed-off-by: Alex Elder Reviewed-by: Sage Weil diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index 159aa8b..cad0d17 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -2300,10 +2300,11 @@ restart: mutex_unlock(&con->mutex); return; } else { - con->ops->put(con); dout("con_work %p FAILED to back off %lu\n", con, con->delay); + set_bit(CON_FLAG_BACKOFF, &con->flags); } + goto done; } if (con->state == CON_STATE_STANDBY) { -- cgit v0.10.2 From bc86cf7af2ebda88056538e8edff852ee627f76a Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 9 Oct 2012 23:26:06 -0700 Subject: mtd: nand: fix Samsung SLC NAND identification regression A combination of the following two commits caused a regression in 3.7-rc1 when identifying some Samsung NAND, so that some previously working NAND were no longer detected properly: commit e3b88bd604283ef83ae6e8f53622d5b1ffe9d43a mtd: nand: add generic READ ID length calculation functions commit e2d3a35ee427aaba99b6c68a56609ce276c51270 mtd: nand: detect Samsung K9GBG08U0A, K9GAG08U0F ID Particularly, a regression was seen on Samsung K9F2G08U0B, with the following full 8-byte READ ID string: ec da 10 95 44 00 ec da The basic problem is that Samsung manufactures both SLC and MLC NAND that use a non-standard decoding table for deriving information from their IDs. I have heuristically determined that all the chips that use the new table have ID strings which wrap around after the 6th byte. Unfortunately, I overlooked the fact that some older Samsung SLC (which use a different decoding table) have "5 byte ID strings" which also wrap around after the 6th byte. This patch re-introduces a distinction between these old and new Samsung NAND by checking that the 6th byte is non-zero, allowing both old and new Samsung NAND to be detected properly. Signed-off-by: Brian Norris Tested-by: Brian Norris Reported-by: Marek Vasut Tested-by: Marek Vasut Signed-off-by: David Woodhouse diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index ec6841d..d5ece6e 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2983,13 +2983,14 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip, /* * Field definitions are in the following datasheets: * Old style (4,5 byte ID): Samsung K9GAG08U0M (p.32) - * New style (6 byte ID): Samsung K9GAG08U0F (p.44) + * New Samsung (6 byte ID): Samsung K9GAG08U0F (p.44) * Hynix MLC (6 byte ID): Hynix H27UBG8T2B (p.22) * - * Check for ID length, cell type, and Hynix/Samsung ID to decide what - * to do. + * Check for ID length, non-zero 6th byte, cell type, and Hynix/Samsung + * ID to decide what to do. */ - if (id_len == 6 && id_data[0] == NAND_MFR_SAMSUNG) { + if (id_len == 6 && id_data[0] == NAND_MFR_SAMSUNG && + id_data[5] != 0x00) { /* Calc pagesize */ mtd->writesize = 2048 << (extid & 0x03); extid >>= 2; -- cgit v0.10.2 From 973a6a76dc0b2a032b682ed7705828584bf87427 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Tue, 9 Oct 2012 16:25:13 -0300 Subject: ARM: mxc: platform-mxc-mmc: Fix register region size Do not hardcode the register region to SZ_4K as this is not correct for mx31. Use data->iosize instead which works for both mx27 and mx31 cases. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer diff --git a/arch/arm/plat-mxc/devices/platform-mxc-mmc.c b/arch/arm/plat-mxc/devices/platform-mxc-mmc.c index 540d3a7..e7b920b 100644 --- a/arch/arm/plat-mxc/devices/platform-mxc-mmc.c +++ b/arch/arm/plat-mxc/devices/platform-mxc-mmc.c @@ -55,7 +55,7 @@ struct platform_device *__init imx_add_mxc_mmc( struct resource res[] = { { .start = data->iobase, - .end = data->iobase + SZ_4K - 1, + .end = data->iobase + data->iosize - 1, .flags = IORESOURCE_MEM, }, { .start = data->irq, -- cgit v0.10.2 From a4bb8e69b17c59669c9480ee9c2e078b5e8a238e Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 8 Oct 2012 08:46:06 +0200 Subject: ARM i.MX25: Fix lcdc_ipg_per parent clock It's per7, not per6. Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c index d20d479..334c839 100644 --- a/arch/arm/mach-imx/clk-imx25.c +++ b/arch/arm/mach-imx/clk-imx25.c @@ -127,7 +127,7 @@ int __init mx25_clocks_init(void) clk[esdhc2_ipg_per] = imx_clk_gate("esdhc2_ipg_per", "per4", ccm(CCM_CGCR0), 4); clk[gpt_ipg_per] = imx_clk_gate("gpt_ipg_per", "per5", ccm(CCM_CGCR0), 5); clk[i2c_ipg_per] = imx_clk_gate("i2c_ipg_per", "per6", ccm(CCM_CGCR0), 6); - clk[lcdc_ipg_per] = imx_clk_gate("lcdc_ipg_per", "per8", ccm(CCM_CGCR0), 7); + clk[lcdc_ipg_per] = imx_clk_gate("lcdc_ipg_per", "per7", ccm(CCM_CGCR0), 7); clk[nfc_ipg_per] = imx_clk_gate("nfc_ipg_per", "ipg_per", ccm(CCM_CGCR0), 8); clk[ssi1_ipg_per] = imx_clk_gate("ssi1_ipg_per", "per13", ccm(CCM_CGCR0), 13); clk[ssi2_ipg_per] = imx_clk_gate("ssi2_ipg_per", "per14", ccm(CCM_CGCR0), 14); -- cgit v0.10.2 From 1f441c435eb6967489860a590d4aa63828cab5e5 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Tue, 9 Oct 2012 10:03:00 +0200 Subject: ARM i.MX25 clk: Fix nfc_ipg_per parent It's per8, there is no ipg_per clk. Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c index 334c839..01e2f84 100644 --- a/arch/arm/mach-imx/clk-imx25.c +++ b/arch/arm/mach-imx/clk-imx25.c @@ -128,7 +128,7 @@ int __init mx25_clocks_init(void) clk[gpt_ipg_per] = imx_clk_gate("gpt_ipg_per", "per5", ccm(CCM_CGCR0), 5); clk[i2c_ipg_per] = imx_clk_gate("i2c_ipg_per", "per6", ccm(CCM_CGCR0), 6); clk[lcdc_ipg_per] = imx_clk_gate("lcdc_ipg_per", "per7", ccm(CCM_CGCR0), 7); - clk[nfc_ipg_per] = imx_clk_gate("nfc_ipg_per", "ipg_per", ccm(CCM_CGCR0), 8); + clk[nfc_ipg_per] = imx_clk_gate("nfc_ipg_per", "per8", ccm(CCM_CGCR0), 8); clk[ssi1_ipg_per] = imx_clk_gate("ssi1_ipg_per", "per13", ccm(CCM_CGCR0), 13); clk[ssi2_ipg_per] = imx_clk_gate("ssi2_ipg_per", "per14", ccm(CCM_CGCR0), 14); clk[uart_ipg_per] = imx_clk_gate("uart_ipg_per", "per15", ccm(CCM_CGCR0), 15); -- cgit v0.10.2 From 92063cee118655d25b50d04eb77b012f3287357a Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Tue, 9 Oct 2012 10:04:04 +0200 Subject: ARM i.MX25: Fix PWM per clock lookups They are behind the gate pwm_ipg_per, not directly behind per10. Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c index 01e2f84..840fdfa 100644 --- a/arch/arm/mach-imx/clk-imx25.c +++ b/arch/arm/mach-imx/clk-imx25.c @@ -203,13 +203,13 @@ int __init mx25_clocks_init(void) clk_register_clkdev(clk[cspi2_ipg], NULL, "imx35-cspi.1"); clk_register_clkdev(clk[cspi3_ipg], NULL, "imx35-cspi.2"); clk_register_clkdev(clk[pwm1_ipg], "ipg", "mxc_pwm.0"); - clk_register_clkdev(clk[per10], "per", "mxc_pwm.0"); + clk_register_clkdev(clk[pwm_ipg_per], "per", "mxc_pwm.0"); clk_register_clkdev(clk[pwm1_ipg], "ipg", "mxc_pwm.1"); - clk_register_clkdev(clk[per10], "per", "mxc_pwm.1"); + clk_register_clkdev(clk[pwm_ipg_per], "per", "mxc_pwm.1"); clk_register_clkdev(clk[pwm1_ipg], "ipg", "mxc_pwm.2"); - clk_register_clkdev(clk[per10], "per", "mxc_pwm.2"); + clk_register_clkdev(clk[pwm_ipg_per], "per", "mxc_pwm.2"); clk_register_clkdev(clk[pwm1_ipg], "ipg", "mxc_pwm.3"); - clk_register_clkdev(clk[per10], "per", "mxc_pwm.3"); + clk_register_clkdev(clk[pwm_ipg_per], "per", "mxc_pwm.3"); clk_register_clkdev(clk[kpp_ipg], NULL, "imx-keypad"); clk_register_clkdev(clk[tsc_ipg], NULL, "mx25-adc"); clk_register_clkdev(clk[i2c_ipg_per], NULL, "imx-i2c.0"); -- cgit v0.10.2 From 5a6ea4af0907f995dc06df21a9c9ef764c7cd3bc Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 25 Sep 2012 15:27:13 +0530 Subject: mtd: ofpart: Fix incorrect NULL check in parse_ofoldpart_partitions() The pointer returned by kzalloc should be tested for NULL to avoid potential NULL pointer dereference later. Incorrect pointer was being tested for NULL. Bug introduced by commit fbcf62a3 (mtd: physmap_of: move parse_obsolete_partitions to become separate parser). This patch fixes this bug. Cc: Dmitry Eremin-Solenikov Cc: Artem Bityutskiy Cc: stable@kernel.org Signed-off-by: Sachin Kamat Signed-off-by: David Woodhouse diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c index 64be8f0..d9127e2 100644 --- a/drivers/mtd/ofpart.c +++ b/drivers/mtd/ofpart.c @@ -121,7 +121,7 @@ static int parse_ofoldpart_partitions(struct mtd_info *master, nr_parts = plen / sizeof(part[0]); *pparts = kzalloc(nr_parts * sizeof(*(*pparts)), GFP_KERNEL); - if (!pparts) + if (!*pparts) return -ENOMEM; names = of_get_property(dp, "partition-names", &plen); -- cgit v0.10.2 From 065a13e2cc665f6547dc7e8a9d6b6565badf940a Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Thu, 11 Oct 2012 16:26:06 +0200 Subject: Bluetooth: SMP: Fix setting unknown auth_req bits When sending a pairing request or response we should not just blindly copy the value that the remote device sent. Instead we should at least make sure to mask out any unknown bits. This is particularly critical from the upcoming LE Secure Connections feature perspective as incorrectly indicating support for it (by copying the remote value) would cause a failure to pair with devices that support it. Signed-off-by: Johan Hedberg Cc: stable@kernel.org Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 8c225ef..2ac8d50 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -32,6 +32,8 @@ #define SMP_TIMEOUT msecs_to_jiffies(30000) +#define AUTH_REQ_MASK 0x07 + static inline void swap128(u8 src[16], u8 dst[16]) { int i; @@ -230,7 +232,7 @@ static void build_pairing_cmd(struct l2cap_conn *conn, req->max_key_size = SMP_MAX_ENC_KEY_SIZE; req->init_key_dist = 0; req->resp_key_dist = dist_keys; - req->auth_req = authreq; + req->auth_req = (authreq & AUTH_REQ_MASK); return; } @@ -239,7 +241,7 @@ static void build_pairing_cmd(struct l2cap_conn *conn, rsp->max_key_size = SMP_MAX_ENC_KEY_SIZE; rsp->init_key_dist = 0; rsp->resp_key_dist = req->resp_key_dist & dist_keys; - rsp->auth_req = authreq; + rsp->auth_req = (authreq & AUTH_REQ_MASK); } static u8 check_enc_key_size(struct l2cap_conn *conn, __u8 max_key_size) -- cgit v0.10.2 From 0153d5a810ab335aae86acfe69722a7efc1db536 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Thu, 11 Oct 2012 10:49:12 +0200 Subject: netfilter: xt_CT: fix timeout setting with IPv6 This patch fixes ip6tables and the CT target if it is used to set some custom conntrack timeout policy for IPv6. Use xt_ct_find_proto which already handles the ip6tables case for us. Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c index 16c7125..ae7f5da 100644 --- a/net/netfilter/xt_CT.c +++ b/net/netfilter/xt_CT.c @@ -180,9 +180,9 @@ xt_ct_set_timeout(struct nf_conn *ct, const struct xt_tgchk_param *par, typeof(nf_ct_timeout_find_get_hook) timeout_find_get; struct ctnl_timeout *timeout; struct nf_conn_timeout *timeout_ext; - const struct ipt_entry *e = par->entryinfo; struct nf_conntrack_l4proto *l4proto; int ret = 0; + u8 proto; rcu_read_lock(); timeout_find_get = rcu_dereference(nf_ct_timeout_find_get_hook); @@ -192,9 +192,11 @@ xt_ct_set_timeout(struct nf_conn *ct, const struct xt_tgchk_param *par, goto out; } - if (e->ip.invflags & IPT_INV_PROTO) { + proto = xt_ct_find_proto(par); + if (!proto) { ret = -EINVAL; - pr_info("You cannot use inversion on L4 protocol\n"); + pr_info("You must specify a L4 protocol, and not use " + "inversions on it.\n"); goto out; } @@ -214,7 +216,7 @@ xt_ct_set_timeout(struct nf_conn *ct, const struct xt_tgchk_param *par, /* Make sure the timeout policy matches any existing protocol tracker, * otherwise default to generic. */ - l4proto = __nf_ct_l4proto_find(par->family, e->ip.proto); + l4proto = __nf_ct_l4proto_find(par->family, proto); if (timeout->l4proto->l4proto != l4proto->l4proto) { ret = -EINVAL; pr_info("Timeout policy `%s' can only be used by L4 protocol " -- cgit v0.10.2 From 939ccba437da1726a5c8a5b702a47d473da927ae Mon Sep 17 00:00:00 2001 From: Elison Niven Date: Mon, 15 Oct 2012 00:44:48 +0000 Subject: netfilter: xt_nat: fix incorrect hooks for SNAT and DNAT targets In (c7232c9 netfilter: add protocol independent NAT core), the hooks were accidentally modified: SNAT hooks are POST_ROUTING and LOCAL_IN (before it was LOCAL_OUT). DNAT hooks are PRE_ROUTING and LOCAL_OUT (before it was LOCAL_IN). Signed-off-by: Elison Niven Signed-off-by: Sanket Shah Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/xt_nat.c b/net/netfilter/xt_nat.c index 81aafa8..bea7464 100644 --- a/net/netfilter/xt_nat.c +++ b/net/netfilter/xt_nat.c @@ -111,7 +111,7 @@ static struct xt_target xt_nat_target_reg[] __read_mostly = { .family = NFPROTO_IPV4, .table = "nat", .hooks = (1 << NF_INET_POST_ROUTING) | - (1 << NF_INET_LOCAL_OUT), + (1 << NF_INET_LOCAL_IN), .me = THIS_MODULE, }, { @@ -123,7 +123,7 @@ static struct xt_target xt_nat_target_reg[] __read_mostly = { .family = NFPROTO_IPV4, .table = "nat", .hooks = (1 << NF_INET_PRE_ROUTING) | - (1 << NF_INET_LOCAL_IN), + (1 << NF_INET_LOCAL_OUT), .me = THIS_MODULE, }, { @@ -133,7 +133,7 @@ static struct xt_target xt_nat_target_reg[] __read_mostly = { .targetsize = sizeof(struct nf_nat_range), .table = "nat", .hooks = (1 << NF_INET_POST_ROUTING) | - (1 << NF_INET_LOCAL_OUT), + (1 << NF_INET_LOCAL_IN), .me = THIS_MODULE, }, { @@ -143,7 +143,7 @@ static struct xt_target xt_nat_target_reg[] __read_mostly = { .targetsize = sizeof(struct nf_nat_range), .table = "nat", .hooks = (1 << NF_INET_PRE_ROUTING) | - (1 << NF_INET_LOCAL_IN), + (1 << NF_INET_LOCAL_OUT), .me = THIS_MODULE, }, }; -- cgit v0.10.2 From 6863255bd0e48bc41ae5a066d5c771801e92735a Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Mon, 15 Oct 2012 14:52:41 +0200 Subject: cfg80211/mac80211: avoid state mishmash on deauth Avoid situation when we are on associate state in mac80211 and on disassociate state in cfg80211. This can results on crash during modules unload (like showed on this thread: http://marc.info/?t=134373976300001&r=1&w=2) and possibly other problems. Reported-by: Pedro Francisco Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka Signed-off-by: Johannes Berg diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 1b49890..f8cd4cf 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1218,6 +1218,7 @@ struct cfg80211_deauth_request { const u8 *ie; size_t ie_len; u16 reason_code; + bool local_state_change; }; /** diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index e714ed8..e510a33 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -3549,6 +3549,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; + bool tx = !req->local_state_change; mutex_lock(&ifmgd->mtx); @@ -3565,12 +3566,12 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, if (ifmgd->associated && ether_addr_equal(ifmgd->associated->bssid, req->bssid)) { ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, - req->reason_code, true, frame_buf); + req->reason_code, tx, frame_buf); } else { drv_mgd_prepare_tx(sdata->local, sdata); ieee80211_send_deauth_disassoc(sdata, req->bssid, IEEE80211_STYPE_DEAUTH, - req->reason_code, true, + req->reason_code, tx, frame_buf); } diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c index 8016fee..904a7f3 100644 --- a/net/wireless/mlme.c +++ b/net/wireless/mlme.c @@ -457,20 +457,14 @@ int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev, .reason_code = reason, .ie = ie, .ie_len = ie_len, + .local_state_change = local_state_change, }; ASSERT_WDEV_LOCK(wdev); - if (local_state_change) { - if (wdev->current_bss && - ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) { - cfg80211_unhold_bss(wdev->current_bss); - cfg80211_put_bss(&wdev->current_bss->pub); - wdev->current_bss = NULL; - } - + if (local_state_change && (!wdev->current_bss || + !ether_addr_equal(wdev->current_bss->pub.bssid, bssid))) return 0; - } return rdev->ops->deauth(&rdev->wiphy, dev, &req); } -- cgit v0.10.2 From 4045f72bcf3c293c7c5932ef001742d8bb5ded76 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Tue, 2 Oct 2012 21:34:23 +0200 Subject: mac80211: check if key has TKIP type before updating IV This patch fix corruption which can manifest itself by following crash when switching on rfkill switch with rt2x00 driver: https://bugzilla.redhat.com/attachment.cgi?id=615362 Pointer key->u.ccmp.tfm of group key get corrupted in: ieee80211_rx_h_michael_mic_verify(): /* update IV in key information to be able to detect replays */ rx->key->u.tkip.rx[rx->security_idx].iv32 = rx->tkip_iv32; rx->key->u.tkip.rx[rx->security_idx].iv16 = rx->tkip_iv16; because rt2x00 always set RX_FLAG_MMIC_STRIPPED, even if key is not TKIP. We already check type of the key in different path in ieee80211_rx_h_michael_mic_verify() function, so adding additional check here is reasonable. Cc: stable@vger.kernel.org # 3.0+ Signed-off-by: Stanislaw Gruszka Signed-off-by: John W. Linville diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index bdb53ab..e72562a 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -106,7 +106,8 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx) if (status->flag & RX_FLAG_MMIC_ERROR) goto mic_fail; - if (!(status->flag & RX_FLAG_IV_STRIPPED) && rx->key) + if (!(status->flag & RX_FLAG_IV_STRIPPED) && rx->key && + rx->key->conf.cipher == WLAN_CIPHER_SUITE_TKIP) goto update_iv; return RX_CONTINUE; -- cgit v0.10.2 From e270b302e4771cde91e713ae17da31c1afc9a135 Mon Sep 17 00:00:00 2001 From: Hante Meuleman Date: Wed, 10 Oct 2012 11:13:06 -0700 Subject: brcmfmac: handle all exceptions as an error. in brcmf_usb_probe_cb only return code ENOLINK was seen as an error. This is wrong, all error codes should be returned to usb subsystem. Reviewed-by: Arend Van Spriel Signed-off-by: Hante Meuleman Signed-off-by: Franky Lin Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c index a2b4b1e..7a6dfdc 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c @@ -1339,7 +1339,7 @@ static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo, } ret = brcmf_bus_start(dev); - if (ret == -ENOLINK) { + if (ret) { brcmf_dbg(ERROR, "dongle is not responding\n"); brcmf_detach(dev); goto fail; -- cgit v0.10.2 From a180b83bb1f036c587bdb93ac6171b94ff49133c Mon Sep 17 00:00:00 2001 From: Franky Lin Date: Wed, 10 Oct 2012 11:13:09 -0700 Subject: brcmfmac: use control channel in roamed status reporting Channel reported in scan results passed to cfg80211 is control channel. But chanspec is reported while notifying cfg80211 about roamed update. Cfg80211 complains because it could not find the bss in the list. Report control channel while calling cfg80211_roamed. Signed-off-by: Franky Lin Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index c1abaa6..48f08ae 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -4606,12 +4606,13 @@ brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg, struct brcmf_cfg80211_profile *profile = cfg->profile; struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); struct wiphy *wiphy = cfg_to_wiphy(cfg); - struct brcmf_channel_info_le channel_le; - struct ieee80211_channel *notify_channel; + struct ieee80211_channel *notify_channel = NULL; struct ieee80211_supported_band *band; + struct brcmf_bss_info_le *bi; u32 freq; s32 err = 0; u32 target_channel; + u8 *buf; WL_TRACE("Enter\n"); @@ -4619,11 +4620,22 @@ brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg, memcpy(profile->bssid, e->addr, ETH_ALEN); brcmf_update_bss_info(cfg); - brcmf_exec_dcmd(ndev, BRCMF_C_GET_CHANNEL, &channel_le, - sizeof(channel_le)); + buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); + if (buf == NULL) { + err = -ENOMEM; + goto done; + } + + /* data sent to dongle has to be little endian */ + *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); + err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_BSS_INFO, buf, WL_BSS_INFO_MAX); + + if (err) + goto done; - target_channel = le32_to_cpu(channel_le.target_channel); - WL_CONN("Roamed to channel %d\n", target_channel); + bi = (struct brcmf_bss_info_le *)(buf + 4); + target_channel = bi->ctl_ch ? bi->ctl_ch : + CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec)); if (target_channel <= CH_MAX_2G_CHANNEL) band = wiphy->bands[IEEE80211_BAND_2GHZ]; @@ -4633,6 +4645,8 @@ brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg, freq = ieee80211_channel_to_frequency(target_channel, band->band); notify_channel = ieee80211_get_channel(wiphy, freq); +done: + kfree(buf); cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid, conn_info->req_ie, conn_info->req_ie_len, conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL); -- cgit v0.10.2 From 5dd161ff7b46029c9da4f4ef8b214b8ba4316445 Mon Sep 17 00:00:00 2001 From: Franky Lin Date: Wed, 10 Oct 2012 11:13:10 -0700 Subject: brcmfmac: set dongle mode accordingly when interface up The mode of WiFi dongle should be initialized in brcmf_cfg80211_up which get called when network interface is brought up. Otherwise brcmf_cfg80211_get_station would return error. Signed-off-by: Franky Lin Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index 48f08ae..2c66bae 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -5200,41 +5200,6 @@ brcmf_cfg80211_event(struct net_device *ndev, schedule_work(&cfg->event_work); } -static s32 brcmf_dongle_mode(struct net_device *ndev, s32 iftype) -{ - s32 infra = 0; - s32 err = 0; - - switch (iftype) { - case NL80211_IFTYPE_MONITOR: - case NL80211_IFTYPE_WDS: - WL_ERR("type (%d) : currently we do not support this mode\n", - iftype); - err = -EINVAL; - return err; - case NL80211_IFTYPE_ADHOC: - infra = 0; - break; - case NL80211_IFTYPE_STATION: - infra = 1; - break; - case NL80211_IFTYPE_AP: - infra = 1; - break; - default: - err = -EINVAL; - WL_ERR("invalid type (%d)\n", iftype); - return err; - } - err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_INFRA, &infra); - if (err) { - WL_ERR("WLC_SET_INFRA error (%d)\n", err); - return err; - } - - return 0; -} - static s32 brcmf_dongle_eventmsg(struct net_device *ndev) { /* Room for "event_msgs" + '\0' + bitvec */ @@ -5453,7 +5418,8 @@ static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg) WL_BEACON_TIMEOUT); if (err) goto default_conf_out; - err = brcmf_dongle_mode(ndev, wdev->iftype); + err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype, + NULL, NULL); if (err && err != -EINPROGRESS) goto default_conf_out; err = brcmf_dongle_probecap(cfg); -- cgit v0.10.2 From 3e4f319dacc60c1b4537b85329d393ad18bf7501 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 10 Oct 2012 11:13:12 -0700 Subject: brcmfmac: fix end of loop check (signedness bug) The problem here is that we loop until "remained_buf_len" is less than zero, but since it is unsigned, it never is. "remained_buf_len" has to be large enough to hold the value from "mgmt_ie_buf_len". That variable is type u32, but it only holds small values so I have changed to both variables to int. Also I removed the bogus initialization from "mgmt_ie_buf_len" so that GCC can detect if it is used unitialized. I moved the declaration of "remained_buf_len" closer to where it is used so it's easier to read. Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Hante Meuleman Signed-off-by: Dan Carpenter Signed-off-by: Franky Lin Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index 2c66bae..411dfe7 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -3972,7 +3972,7 @@ brcmf_set_management_ie(struct brcmf_cfg80211_info *cfg, u8 *iovar_ie_buf; u8 *curr_ie_buf; u8 *mgmt_ie_buf = NULL; - u32 mgmt_ie_buf_len = 0; + int mgmt_ie_buf_len; u32 *mgmt_ie_len = 0; u32 del_add_ie_buf_len = 0; u32 total_ie_buf_len = 0; @@ -3982,7 +3982,7 @@ brcmf_set_management_ie(struct brcmf_cfg80211_info *cfg, struct parsed_vndr_ie_info *vndrie_info; s32 i; u8 *ptr; - u32 remained_buf_len; + int remained_buf_len; WL_TRACE("bssidx %d, pktflag : 0x%02X\n", bssidx, pktflag); iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL); -- cgit v0.10.2 From d4fa14cd62bd078c8e3ef39283b9f237e5b2ff0f Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 10 Oct 2012 22:40:23 +0200 Subject: mac80211: use ieee80211_free_txskb in a few more places Free tx status skbs when draining power save buffers, pending frames, or when tearing down a vif. Fixes remaining conditions that can lead to hostapd/wpa_supplicant hangs when running out of socket write memory. Signed-off-by: Felix Fietkau Cc: stable@vger.kernel.org Signed-off-by: John W. Linville diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 6f8a73c..7de7717 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -853,7 +853,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); if (info->control.vif == &sdata->vif) { __skb_unlink(skb, &local->pending[i]); - dev_kfree_skb_irq(skb); + ieee80211_free_txskb(&local->hw, skb); } } } diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 797dd36..0a4e4c0 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -650,7 +650,7 @@ static bool sta_info_cleanup_expire_buffered_ac(struct ieee80211_local *local, */ if (!skb) break; - dev_kfree_skb(skb); + ieee80211_free_txskb(&local->hw, skb); } /* @@ -679,7 +679,7 @@ static bool sta_info_cleanup_expire_buffered_ac(struct ieee80211_local *local, local->total_ps_buffered--; ps_dbg(sta->sdata, "Buffered frame expired (STA %pM)\n", sta->sta.addr); - dev_kfree_skb(skb); + ieee80211_free_txskb(&local->hw, skb); } /* diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 22ca350..94e5868 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -406,7 +406,7 @@ void ieee80211_add_pending_skb(struct ieee80211_local *local, int queue = info->hw_queue; if (WARN_ON(!info->control.vif)) { - kfree_skb(skb); + ieee80211_free_txskb(&local->hw, skb); return; } @@ -431,7 +431,7 @@ void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local, struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); if (WARN_ON(!info->control.vif)) { - kfree_skb(skb); + ieee80211_free_txskb(&local->hw, skb); continue; } -- cgit v0.10.2 From 1fffa905adffbf0d3767fc978ef09afb830275eb Mon Sep 17 00:00:00 2001 From: Piotr Haber Date: Thu, 11 Oct 2012 14:05:15 +0200 Subject: bcma: fix unregistration of cores When cores are unregistered, entries need to be removed from cores list in a safe manner. Reported-by: Stanislaw Gruszka Reviewed-by: Arend Van Spriel Signed-off-by: Piotr Haber Cc: stable@vger.kernel.org Signed-off-by: John W. Linville diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c index 432aeee..d865470 100644 --- a/drivers/bcma/main.c +++ b/drivers/bcma/main.c @@ -158,9 +158,10 @@ static int bcma_register_cores(struct bcma_bus *bus) static void bcma_unregister_cores(struct bcma_bus *bus) { - struct bcma_device *core; + struct bcma_device *core, *tmp; - list_for_each_entry(core, &bus->cores, list) { + list_for_each_entry_safe(core, tmp, &bus->cores, list) { + list_del(&core->list); if (core->dev_registered) device_unregister(&core->dev); } -- cgit v0.10.2 From bf11315eeda510ea4fc1a2bf972d8155d31d89b4 Mon Sep 17 00:00:00 2001 From: Stanislav Yakovlev Date: Mon, 15 Oct 2012 14:14:32 +0000 Subject: net/wireless: ipw2200: Fix panic occurring in ipw_handle_promiscuous_tx() The driver does not count space of radiotap fields when allocating skb for radiotap packet. This leads to kernel panic with the following call trace: ... [67607.676067] [] error_code+0x67/0x6c [67607.676067] [] ? skb_put+0x91/0xa0 [67607.676067] [] ? ipw_handle_promiscuous_tx+0x16b/0x2d0 [ipw2200] [67607.676067] [] ipw_handle_promiscuous_tx+0x16b/0x2d0 [ipw2200] [67607.676067] [] ipw_net_hard_start_xmit+0x8b/0x90 [ipw2200] [67607.676067] [] libipw_xmit+0x55a/0x980 [libipw] [67607.676067] [] dev_hard_start_xmit+0x218/0x4d0 ... This bug was found by VittGam. https://bugzilla.kernel.org/show_bug.cgi?id=43255 Cc: stable@kernel.org Signed-off-by: Stanislav Yakovlev Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c index 935120f..768bf61 100644 --- a/drivers/net/wireless/ipw2x00/ipw2200.c +++ b/drivers/net/wireless/ipw2x00/ipw2200.c @@ -10472,7 +10472,7 @@ static void ipw_handle_promiscuous_tx(struct ipw_priv *priv, } else len = src->len; - dst = alloc_skb(len + sizeof(*rt_hdr), GFP_ATOMIC); + dst = alloc_skb(len + sizeof(*rt_hdr) + sizeof(u16)*2, GFP_ATOMIC); if (!dst) continue; -- cgit v0.10.2 From d79550a7bc35c16476ebdc27c78378d8093390ec Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 11 Oct 2012 09:56:35 +0300 Subject: gpio-timberdale: fix a potential wrapping issue ->last_ier is an unsigned long but the high bits can't be used int the original code because the shift wraps. Cc: stable@kernel.org Signed-off-by: Dan Carpenter Signed-off-by: Linus Walleij diff --git a/drivers/gpio/gpio-timberdale.c b/drivers/gpio/gpio-timberdale.c index 031c6ad..1a3e2b9 100644 --- a/drivers/gpio/gpio-timberdale.c +++ b/drivers/gpio/gpio-timberdale.c @@ -116,7 +116,7 @@ static void timbgpio_irq_disable(struct irq_data *d) unsigned long flags; spin_lock_irqsave(&tgpio->lock, flags); - tgpio->last_ier &= ~(1 << offset); + tgpio->last_ier &= ~(1UL << offset); iowrite32(tgpio->last_ier, tgpio->membase + TGPIO_IER); spin_unlock_irqrestore(&tgpio->lock, flags); } @@ -128,7 +128,7 @@ static void timbgpio_irq_enable(struct irq_data *d) unsigned long flags; spin_lock_irqsave(&tgpio->lock, flags); - tgpio->last_ier |= 1 << offset; + tgpio->last_ier |= 1UL << offset; iowrite32(tgpio->last_ier, tgpio->membase + TGPIO_IER); spin_unlock_irqrestore(&tgpio->lock, flags); } -- cgit v0.10.2 From 39013bd60e79148961583402ed70bd105f95d260 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Mon, 15 Oct 2012 14:13:25 +0100 Subject: ASoC: Ux500: Dispose of device nodes correctly When of_parse_phandle() is used to find a device node, its reference count is incremented by the helper. Once we're finished with them, it's our responsibly to ensure they are freed in the correct manor. Acked-by: Linus Walleij Signed-off-by: Lee Jones Signed-off-by: Mark Brown diff --git a/sound/soc/ux500/mop500.c b/sound/soc/ux500/mop500.c index 356611d..54f7e25 100644 --- a/sound/soc/ux500/mop500.c +++ b/sound/soc/ux500/mop500.c @@ -57,6 +57,20 @@ static struct snd_soc_card mop500_card = { .num_links = ARRAY_SIZE(mop500_dai_links), }; +static void mop500_of_node_put(void) +{ + int i; + + for (i = 0; i < 2; i++) { + if (mop500_dai_links[i].cpu_of_node) + of_node_put((struct device_node *) + mop500_dai_links[i].cpu_of_node); + if (mop500_dai_links[i].codec_of_node) + of_node_put((struct device_node *) + mop500_dai_links[i].codec_of_node); + } +} + static int __devinit mop500_of_probe(struct platform_device *pdev, struct device_node *np) { @@ -69,6 +83,7 @@ static int __devinit mop500_of_probe(struct platform_device *pdev, if (!(msp_np[0] && msp_np[1] && codec_np)) { dev_err(&pdev->dev, "Phandle missing or invalid\n"); + mop500_of_node_put(); return -EINVAL; } @@ -83,6 +98,7 @@ static int __devinit mop500_of_probe(struct platform_device *pdev, return 0; } + static int __devinit mop500_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; @@ -128,6 +144,7 @@ static int __devexit mop500_remove(struct platform_device *pdev) snd_soc_unregister_card(mop500_card); mop500_ab8500_remove(mop500_card); + mop500_of_node_put(); return 0; } -- cgit v0.10.2 From 05304949332c6d2c7b50f2d0f666a52369f09ced Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Mon, 15 Oct 2012 14:13:26 +0100 Subject: ASoC: ux500_msp_i2s: Fix devm_* and return code merge error Some ux500_msp_i2s patches clashed with: b18e93a493626c1446f9788ebd5844d008bbf71c ASoC: ux500_msp_i2s: better use devm functions and fix error return code ... leaving the driver uncompilable. This patch fixes the issues encountered. Acked-by: Linus Walleij Signed-off-by: Lee Jones Signed-off-by: Mark Brown diff --git a/sound/soc/ux500/ux500_msp_i2s.c b/sound/soc/ux500/ux500_msp_i2s.c index b7c996e..a26c6bf 100644 --- a/sound/soc/ux500/ux500_msp_i2s.c +++ b/sound/soc/ux500/ux500_msp_i2s.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include @@ -697,14 +698,11 @@ int ux500_msp_i2s_init_msp(struct platform_device *pdev, platform_data = devm_kzalloc(&pdev->dev, sizeof(struct msp_i2s_platform_data), GFP_KERNEL); if (!platform_data) - ret = -ENOMEM; + return -ENOMEM; } } else if (!platform_data) - ret = -EINVAL; - - if (ret) - goto err_res; + return -EINVAL; dev_dbg(&pdev->dev, "%s: Enter (name: %s, id: %d).\n", __func__, pdev->name, platform_data->id); -- cgit v0.10.2 From 78bef24e8477653853eb028dfc18471f05e54955 Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Mon, 8 Oct 2012 11:33:05 +0100 Subject: MAINTAINERS: Add EFI git repository location People keep asking for the whereabouts of this git tree, so add it to MAINTAINERS. Signed-off-by: Matt Fleming diff --git a/MAINTAINERS b/MAINTAINERS index e73060f..fe95ef1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2801,6 +2801,7 @@ F: sound/usb/misc/ua101.c EXTENSIBLE FIRMWARE INTERFACE (EFI) M: Matt Fleming L: linux-efi@vger.kernel.org +T: git git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git S: Maintained F: Documentation/x86/efi-stub.txt F: arch/ia64/kernel/efi.c -- cgit v0.10.2 From c2ff5cf5294bcbd7fa50f7d860e90a66db7e5059 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Tue, 16 Oct 2012 14:52:51 +0200 Subject: iommu/amd: Work around wrong IOAPIC device-id in IVRS table On some systems the BIOS puts the wrong device-id for the IO-APIC into the IVRS table. The result is that interrupt remapping is not working for the IO-APIC irqs. This usually means a kernel panic at boot because the timer is not working. Fix this kernel panic by disabling interrupt remapping if this problem is discovered in the IVRS table. Reported-by: Andrew Oakley Signed-off-by: Joerg Roedel diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index 18b0d99..81837b0 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -1599,21 +1599,46 @@ static void __init free_on_init_error(void) #endif } +/* SB IOAPIC is always on this device in AMD systems */ +#define IOAPIC_SB_DEVID ((0x00 << 8) | PCI_DEVFN(0x14, 0)) + static bool __init check_ioapic_information(void) { + bool ret, has_sb_ioapic; int idx; - for (idx = 0; idx < nr_ioapics; idx++) { - int id = mpc_ioapic_id(idx); + has_sb_ioapic = false; + ret = false; - if (get_ioapic_devid(id) < 0) { - pr_err(FW_BUG "AMD-Vi: IO-APIC[%d] not in IVRS table\n", id); - pr_err("AMD-Vi: Disabling interrupt remapping due to BIOS Bug\n"); - return false; + for (idx = 0; idx < nr_ioapics; idx++) { + int devid, id = mpc_ioapic_id(idx); + + devid = get_ioapic_devid(id); + if (devid < 0) { + pr_err(FW_BUG "AMD-Vi: IOAPIC[%d] not in IVRS table\n", id); + ret = false; + } else if (devid == IOAPIC_SB_DEVID) { + has_sb_ioapic = true; + ret = true; } } - return true; + if (!has_sb_ioapic) { + /* + * We expect the SB IOAPIC to be listed in the IVRS + * table. The system timer is connected to the SB IOAPIC + * and if we don't have it in the list the system will + * panic at boot time. This situation usually happens + * when the BIOS is buggy and provides us the wrong + * device id for the IOAPIC in the system. + */ + pr_err(FW_BUG "AMD-Vi: No southbridge IOAPIC found in IVRS table\n"); + } + + if (!ret) + pr_err("AMD-Vi: Disabling interrupt remapping due to BIOS Bug(s)\n"); + + return ret; } static void __init free_dma_resources(void) -- cgit v0.10.2 From 8f7b8db6e0557c8437adf9371e020cd89a7e85dc Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 25 Sep 2012 16:40:12 +0200 Subject: iwlwifi: fix 6000 series channel switch command The channel switch command for 6000 series devices is larger than the maximum inline command size of 320 bytes. The command is therefore refused with a warning. Fix this by allocating the command and using the NOCOPY mechanism. Cc: stable@kernel.org Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg diff --git a/drivers/net/wireless/iwlwifi/dvm/devices.c b/drivers/net/wireless/iwlwifi/dvm/devices.c index 349c205..da58620 100644 --- a/drivers/net/wireless/iwlwifi/dvm/devices.c +++ b/drivers/net/wireless/iwlwifi/dvm/devices.c @@ -518,7 +518,7 @@ static int iwl6000_hw_channel_switch(struct iwl_priv *priv, * See iwlagn_mac_channel_switch. */ struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; - struct iwl6000_channel_switch_cmd cmd; + struct iwl6000_channel_switch_cmd *cmd; u32 switch_time_in_usec, ucode_switch_time; u16 ch; u32 tsf_low; @@ -527,18 +527,25 @@ static int iwl6000_hw_channel_switch(struct iwl_priv *priv, struct ieee80211_vif *vif = ctx->vif; struct iwl_host_cmd hcmd = { .id = REPLY_CHANNEL_SWITCH, - .len = { sizeof(cmd), }, + .len = { sizeof(*cmd), }, .flags = CMD_SYNC, - .data = { &cmd, }, + .dataflags[0] = IWL_HCMD_DFL_NOCOPY, }; + int err; - cmd.band = priv->band == IEEE80211_BAND_2GHZ; + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) + return -ENOMEM; + + hcmd.data[0] = cmd; + + cmd->band = priv->band == IEEE80211_BAND_2GHZ; ch = ch_switch->channel->hw_value; IWL_DEBUG_11H(priv, "channel switch from %u to %u\n", ctx->active.channel, ch); - cmd.channel = cpu_to_le16(ch); - cmd.rxon_flags = ctx->staging.flags; - cmd.rxon_filter_flags = ctx->staging.filter_flags; + cmd->channel = cpu_to_le16(ch); + cmd->rxon_flags = ctx->staging.flags; + cmd->rxon_filter_flags = ctx->staging.filter_flags; switch_count = ch_switch->count; tsf_low = ch_switch->timestamp & 0x0ffffffff; /* @@ -554,23 +561,25 @@ static int iwl6000_hw_channel_switch(struct iwl_priv *priv, switch_count = 0; } if (switch_count <= 1) - cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time); + cmd->switch_time = cpu_to_le32(priv->ucode_beacon_time); else { switch_time_in_usec = vif->bss_conf.beacon_int * switch_count * TIME_UNIT; ucode_switch_time = iwl_usecs_to_beacons(priv, switch_time_in_usec, beacon_interval); - cmd.switch_time = iwl_add_beacon_time(priv, - priv->ucode_beacon_time, - ucode_switch_time, - beacon_interval); + cmd->switch_time = iwl_add_beacon_time(priv, + priv->ucode_beacon_time, + ucode_switch_time, + beacon_interval); } IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n", - cmd.switch_time); - cmd.expect_beacon = ch_switch->channel->flags & IEEE80211_CHAN_RADAR; + cmd->switch_time); + cmd->expect_beacon = ch_switch->channel->flags & IEEE80211_CHAN_RADAR; - return iwl_dvm_send_cmd(priv, &hcmd); + err = iwl_dvm_send_cmd(priv, &hcmd); + kfree(cmd); + return err; } struct iwl_lib_ops iwl6000_lib = { -- cgit v0.10.2 From a48221a26e4914b7e2d8a1749b6115212bac8bee Mon Sep 17 00:00:00 2001 From: Roland Stigge Date: Tue, 16 Oct 2012 15:24:01 +0200 Subject: gpio-74x164: Fix buffer allocation size The new registers handling in the gpio-74x164 driver allocates chip->registers * 8 bytes where only one byte per register is necessary. This patch fixes this. Signed-off-by: Roland Stigge Signed-off-by: Linus Walleij diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c index ed3e551..f05e542 100644 --- a/drivers/gpio/gpio-74x164.c +++ b/drivers/gpio/gpio-74x164.c @@ -153,7 +153,7 @@ static int __devinit gen_74x164_probe(struct spi_device *spi) } chip->gpio_chip.ngpio = GEN_74X164_NUMBER_GPIOS * chip->registers; - chip->buffer = devm_kzalloc(&spi->dev, chip->gpio_chip.ngpio, GFP_KERNEL); + chip->buffer = devm_kzalloc(&spi->dev, chip->registers, GFP_KERNEL); if (!chip->buffer) { ret = -ENOMEM; goto exit_destroy; -- cgit v0.10.2 From 1f5320d5972aa50d3e8d2b227b636b370e608359 Mon Sep 17 00:00:00 2001 From: Daisuke Nishimura Date: Thu, 4 Oct 2012 16:37:16 +0900 Subject: cgroup: notify_on_release may not be triggered in some cases notify_on_release must be triggered when the last process in a cgroup is move to another. But if the first(and only) process in a cgroup is moved to another, notify_on_release is not triggered. # mkdir /cgroup/cpu/SRC # mkdir /cgroup/cpu/DST # # echo 1 >/cgroup/cpu/SRC/notify_on_release # echo 1 >/cgroup/cpu/DST/notify_on_release # # sleep 300 & [1] 8629 # # echo 8629 >/cgroup/cpu/SRC/tasks # echo 8629 >/cgroup/cpu/DST/tasks -> notify_on_release for /SRC must be triggered at this point, but it isn't. This is because put_css_set() is called before setting CGRP_RELEASABLE in cgroup_task_migrate(), and is a regression introduce by the commit:74a1166d(cgroups: make procs file writable), which was merged into v3.0. Cc: Ben Blum Cc: # v3.0.x and later Acked-by: Li Zefan Signed-off-by: Daisuke Nishimura Signed-off-by: Tejun Heo diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 13774b3..d1739fc 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -1962,9 +1962,8 @@ static void cgroup_task_migrate(struct cgroup *cgrp, struct cgroup *oldcgrp, * trading it for newcg is protected by cgroup_mutex, we're safe to drop * it here; it will be freed under RCU. */ - put_css_set(oldcg); - set_bit(CGRP_RELEASABLE, &oldcgrp->flags); + put_css_set(oldcg); } /** -- cgit v0.10.2 From d856f1eb56ae3d935fb502441aa37b650aeba683 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sun, 14 Oct 2012 04:32:55 +0200 Subject: spi: mxs: Assign message status after transfer finished In the current code implementing the MXS SPI driver, every transferred message had assigned status = 0, which is not correct. Properly assign status returned from the I/O functions. Signed-off-by: Marek Vasut Signed-off-by: Mark Brown diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c index edf1360..5a63bcd 100644 --- a/drivers/spi/spi-mxs.c +++ b/drivers/spi/spi-mxs.c @@ -480,7 +480,7 @@ static int mxs_spi_transfer_one(struct spi_master *master, first = last = 0; } - m->status = 0; + m->status = status; spi_finalize_current_message(master); return status; -- cgit v0.10.2 From 44968466cfb969f960dbe422bbc785117f497729 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sun, 14 Oct 2012 04:32:56 +0200 Subject: spi: mxs: Terminate DMA in case of DMA timeout In case the SPI DMA times out, the DMA might still be in some kind of inconsistent state. Issue dmaengine_terminate_all() on the particular channel to kill off all operations before continuing. Signed-off-by: Marek Vasut Signed-off-by: Mark Brown diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c index 5a63bcd..86dd04d 100644 --- a/drivers/spi/spi-mxs.c +++ b/drivers/spi/spi-mxs.c @@ -323,6 +323,7 @@ static int mxs_spi_txrx_dma(struct mxs_spi *spi, int cs, if (!ret) { dev_err(ssp->dev, "DMA transfer timeout\n"); ret = -ETIMEDOUT; + dmaengine_terminate_all(ssp->dmach); goto err_vmalloc; } -- cgit v0.10.2 From 0243c53634987ce7a3d1e39ae55c17800d9436c8 Mon Sep 17 00:00:00 2001 From: "Shimoda, Yoshihiro" Date: Thu, 2 Aug 2012 17:17:33 +0900 Subject: spi: spi-rspi: fix build error for the latest shdma driver Because the latest shdma driver changed, it caused build error in the spi-rspi driver. This patch fixed the build error. Signed-off-by: Yoshihiro Shimoda Signed-off-by: Mark Brown diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index 4894bde..30faf6d 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -147,8 +147,6 @@ struct rspi_data { unsigned char spsr; /* for dmaengine */ - struct sh_dmae_slave dma_tx; - struct sh_dmae_slave dma_rx; struct dma_chan *chan_tx; struct dma_chan *chan_rx; int irq; @@ -663,20 +661,16 @@ static irqreturn_t rspi_irq(int irq, void *_sr) return ret; } -static bool rspi_filter(struct dma_chan *chan, void *filter_param) -{ - chan->private = filter_param; - return true; -} - -static void __devinit rspi_request_dma(struct rspi_data *rspi, - struct platform_device *pdev) +static int __devinit rspi_request_dma(struct rspi_data *rspi, + struct platform_device *pdev) { struct rspi_plat_data *rspi_pd = pdev->dev.platform_data; dma_cap_mask_t mask; + struct dma_slave_config cfg; + int ret; if (!rspi_pd) - return; + return 0; /* The driver assumes no error. */ rspi->dma_width_16bit = rspi_pd->dma_width_16bit; @@ -684,21 +678,35 @@ static void __devinit rspi_request_dma(struct rspi_data *rspi, if (rspi_pd->dma_rx_id && rspi_pd->dma_tx_id) { dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); - rspi->dma_rx.slave_id = rspi_pd->dma_rx_id; - rspi->chan_rx = dma_request_channel(mask, rspi_filter, - &rspi->dma_rx); - if (rspi->chan_rx) - dev_info(&pdev->dev, "Use DMA when rx.\n"); + rspi->chan_rx = dma_request_channel(mask, shdma_chan_filter, + (void *)rspi_pd->dma_rx_id); + if (rspi->chan_rx) { + cfg.slave_id = rspi_pd->dma_rx_id; + cfg.direction = DMA_DEV_TO_MEM; + ret = dmaengine_slave_config(rspi->chan_rx, &cfg); + if (!ret) + dev_info(&pdev->dev, "Use DMA when rx.\n"); + else + return ret; + } } if (rspi_pd->dma_tx_id) { dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); - rspi->dma_tx.slave_id = rspi_pd->dma_tx_id; - rspi->chan_tx = dma_request_channel(mask, rspi_filter, - &rspi->dma_tx); - if (rspi->chan_tx) - dev_info(&pdev->dev, "Use DMA when tx\n"); + rspi->chan_tx = dma_request_channel(mask, shdma_chan_filter, + (void *)rspi_pd->dma_tx_id); + if (rspi->chan_tx) { + cfg.slave_id = rspi_pd->dma_tx_id; + cfg.direction = DMA_MEM_TO_DEV; + ret = dmaengine_slave_config(rspi->chan_tx, &cfg); + if (!ret) + dev_info(&pdev->dev, "Use DMA when tx\n"); + else + return ret; + } } + + return 0; } static void __devexit rspi_release_dma(struct rspi_data *rspi) @@ -788,7 +796,11 @@ static int __devinit rspi_probe(struct platform_device *pdev) } rspi->irq = irq; - rspi_request_dma(rspi, pdev); + ret = rspi_request_dma(rspi, pdev); + if (ret < 0) { + dev_err(&pdev->dev, "rspi_request_dma failed.\n"); + goto error4; + } ret = spi_register_master(master); if (ret < 0) { -- cgit v0.10.2 From 2f5f1ce90a5fa097372bb895452a718e4d33e4e3 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Fri, 17 Aug 2012 14:47:30 +0300 Subject: spi: tsc2005: delete soon-obsolete e-mail address Delete soon-obsolete e-mail address. Signed-off-by: Aaro Koskinen Signed-off-by: Mark Brown diff --git a/include/linux/spi/tsc2005.h b/include/linux/spi/tsc2005.h index d9b0c84..8f721e4 100644 --- a/include/linux/spi/tsc2005.h +++ b/include/linux/spi/tsc2005.h @@ -3,8 +3,6 @@ * * Copyright (C) 2009-2010 Nokia Corporation * - * Contact: Aaro Koskinen - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or -- cgit v0.10.2 From 308b3afb97dc342e9c4f958d8b4c459ae0e22bd7 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Wed, 17 Oct 2012 16:47:11 +0900 Subject: ARM: SAMSUNG: Add naming of s3c64xx-spi devices Commit a5238e360b71 (spi: s3c64xx: move controller information into driver data) introduced separate device names for the different subtypes of the spi controller but forgot to set these in the relevant machines. To fix this introduce a s3c64xx_spi_setname function and populate all Samsung arches with the correct names. The function resides in a new header, as the s3c64xx-spi.h contains driver platform data and should therefore at some later point move out of the Samsung include dir. Tested on a s3c2416-based machine. Signed-off-by: Heiko Stuebner Cc: Stable Reviewed-by: Sylwester Nawrocki [s.nawrocki@samsung.com: tested on mach-exynos] Tested-by: Sylwester Nawrocki Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index 715b690..1947be8 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -47,6 +47,7 @@ #include #include #include +#include #include #include "common.h" @@ -346,6 +347,8 @@ static void __init exynos4_map_io(void) s5p_fb_setname(0, "exynos4-fb"); s5p_hdmi_setname("exynos4-hdmi"); + + s3c64xx_spi_setname("exynos4210-spi"); } static void __init exynos5_map_io(void) @@ -366,6 +369,8 @@ static void __init exynos5_map_io(void) s3c_i2c0_setname("s3c2440-i2c"); s3c_i2c1_setname("s3c2440-i2c"); s3c_i2c2_setname("s3c2440-i2c"); + + s3c64xx_spi_setname("exynos4210-spi"); } static void __init exynos4_init_clocks(int xtal) diff --git a/arch/arm/mach-s3c24xx/s3c2416.c b/arch/arm/mach-s3c24xx/s3c2416.c index ed5a95ec..77ee0b7 100644 --- a/arch/arm/mach-s3c24xx/s3c2416.c +++ b/arch/arm/mach-s3c24xx/s3c2416.c @@ -61,6 +61,7 @@ #include #include #include +#include static struct map_desc s3c2416_iodesc[] __initdata = { IODESC_ENT(WATCHDOG), @@ -132,6 +133,7 @@ void __init s3c2416_map_io(void) /* initialize device information early */ s3c2416_default_sdhci0(); s3c2416_default_sdhci1(); + s3c64xx_spi_setname("s3c2443-spi"); iotable_init(s3c2416_iodesc, ARRAY_SIZE(s3c2416_iodesc)); } diff --git a/arch/arm/mach-s3c24xx/s3c2443.c b/arch/arm/mach-s3c24xx/s3c2443.c index ab648ad..165b6a6 100644 --- a/arch/arm/mach-s3c24xx/s3c2443.c +++ b/arch/arm/mach-s3c24xx/s3c2443.c @@ -43,6 +43,7 @@ #include #include #include +#include static struct map_desc s3c2443_iodesc[] __initdata = { IODESC_ENT(WATCHDOG), @@ -100,6 +101,9 @@ void __init s3c2443_map_io(void) s3c24xx_gpiocfg_default.set_pull = s3c2443_gpio_setpull; s3c24xx_gpiocfg_default.get_pull = s3c2443_gpio_getpull; + /* initialize device information early */ + s3c64xx_spi_setname("s3c2443-spi"); + iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc)); } diff --git a/arch/arm/mach-s5p64x0/common.c b/arch/arm/mach-s5p64x0/common.c index 6e6a0a9..111e404 100644 --- a/arch/arm/mach-s5p64x0/common.c +++ b/arch/arm/mach-s5p64x0/common.c @@ -44,6 +44,7 @@ #include #include #include +#include #include #include #include @@ -179,6 +180,7 @@ void __init s5p6440_map_io(void) /* initialize any device information early */ s3c_adc_setname("s3c64xx-adc"); s3c_fb_setname("s5p64x0-fb"); + s3c64xx_spi_setname("s5p64x0-spi"); s5p64x0_default_sdhci0(); s5p64x0_default_sdhci1(); @@ -193,6 +195,7 @@ void __init s5p6450_map_io(void) /* initialize any device information early */ s3c_adc_setname("s3c64xx-adc"); s3c_fb_setname("s5p64x0-fb"); + s3c64xx_spi_setname("s5p64x0-spi"); s5p64x0_default_sdhci0(); s5p64x0_default_sdhci1(); diff --git a/arch/arm/mach-s5pc100/common.c b/arch/arm/mach-s5pc100/common.c index 6219086..cc6e561 100644 --- a/arch/arm/mach-s5pc100/common.c +++ b/arch/arm/mach-s5pc100/common.c @@ -45,6 +45,7 @@ #include #include #include +#include #include #include @@ -165,6 +166,8 @@ void __init s5pc100_map_io(void) s3c_onenand_setname("s5pc100-onenand"); s3c_fb_setname("s5pc100-fb"); s3c_cfcon_setname("s5pc100-pata"); + + s3c64xx_spi_setname("s5pc100-spi"); } void __init s5pc100_init_clocks(int xtal) diff --git a/arch/arm/mach-s5pv210/common.c b/arch/arm/mach-s5pv210/common.c index 4c9e902..a0c50ef 100644 --- a/arch/arm/mach-s5pv210/common.c +++ b/arch/arm/mach-s5pv210/common.c @@ -43,6 +43,7 @@ #include #include #include +#include #include #include "common.h" @@ -196,6 +197,8 @@ void __init s5pv210_map_io(void) /* setup TV devices */ s5p_hdmi_setname("s5pv210-hdmi"); + + s3c64xx_spi_setname("s5pv210-spi"); } void __init s5pv210_init_clocks(int xtal) diff --git a/arch/arm/plat-samsung/include/plat/spi-core.h b/arch/arm/plat-samsung/include/plat/spi-core.h new file mode 100644 index 0000000..0b9428a --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/spi-core.h @@ -0,0 +1,30 @@ +/* + * Copyright (C) 2012 Heiko Stuebner + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __PLAT_S3C_SPI_CORE_H +#define __PLAT_S3C_SPI_CORE_H + +/* These functions are only for use with the core support code, such as + * the cpu specific initialisation code + */ + +/* re-define device name depending on support. */ +static inline void s3c64xx_spi_setname(char *name) +{ +#ifdef CONFIG_S3C64XX_DEV_SPI0 + s3c64xx_device_spi0.name = name; +#endif +#ifdef CONFIG_S3C64XX_DEV_SPI1 + s3c64xx_device_spi1.name = name; +#endif +#ifdef CONFIG_S3C64XX_DEV_SPI2 + s3c64xx_device_spi2.name = name; +#endif +} + +#endif /* __PLAT_S3C_SPI_CORE_H */ -- cgit v0.10.2 From 2ad5b9e4bd314fc685086b99e90e5de3bc59e26b Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 16 Oct 2012 22:33:29 +0000 Subject: netfilter: xt_TEE: don't use destination address found in header Torsten Luettgert bisected TEE regression starting with commit f8126f1d5136be1 (ipv4: Adjust semantics of rt->rt_gateway.) The problem is that it tries to ARP-lookup the original destination address of the forwarded packet, not the address of the gateway. Fix this using FLOWI_FLAG_KNOWN_NH Julian added in commit c92b96553a80c1 (ipv4: Add FLOWI_FLAG_KNOWN_NH), so that known nexthop (info->gw.ip) has preference on resolving. Reported-by: Torsten Luettgert Bisected-by: Torsten Luettgert Tested-by: Torsten Luettgert Cc: Julian Anastasov Signed-off-by: Eric Dumazet Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/xt_TEE.c b/net/netfilter/xt_TEE.c index ee2e5bc..bd93e51 100644 --- a/net/netfilter/xt_TEE.c +++ b/net/netfilter/xt_TEE.c @@ -70,6 +70,7 @@ tee_tg_route4(struct sk_buff *skb, const struct xt_tee_tginfo *info) fl4.daddr = info->gw.ip; fl4.flowi4_tos = RT_TOS(iph->tos); fl4.flowi4_scope = RT_SCOPE_UNIVERSE; + fl4.flowi4_flags = FLOWI_FLAG_KNOWN_NH; rt = ip_route_output_key(net, &fl4); if (IS_ERR(rt)) return false; -- cgit v0.10.2 From 59cf19a4fa2b8832f04f4c2b846c7cade52e475d Mon Sep 17 00:00:00 2001 From: Tomasz Figa Date: Wed, 17 Oct 2012 18:10:34 +0900 Subject: ARM: dts: Split memory into 4 sections for exynos4210-trats Since the maximum section size on mach-exynos is set to 256MiB, boards with memory configuration defined using sections bigger than 256MiB will fail to boot with a kernel panic. This patch modifies the dts file of Samsung Trats board to define four sections of 256MiB instead of two of 512MiB to fix the boot problem. Signed-off-by: Tomasz Figa Signed-off-by: Kukjin Kim diff --git a/arch/arm/boot/dts/exynos4210-trats.dts b/arch/arm/boot/dts/exynos4210-trats.dts index 73567b8..a21511c 100644 --- a/arch/arm/boot/dts/exynos4210-trats.dts +++ b/arch/arm/boot/dts/exynos4210-trats.dts @@ -20,8 +20,10 @@ compatible = "samsung,trats", "samsung,exynos4210"; memory { - reg = <0x40000000 0x20000000 - 0x60000000 0x20000000>; + reg = <0x40000000 0x10000000 + 0x50000000 0x10000000 + 0x60000000 0x10000000 + 0x70000000 0x10000000>; }; chosen { -- cgit v0.10.2 From 3a40414f826a8f1096d9b94c4a53ef91b25ba28d Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 1 Oct 2012 15:52:00 +0200 Subject: mac80211: connect with HT20 if HT40 is not permitted Some changes to fix issues with HT40 APs in Korea and follow-up changes to allow using HT40 even if the local regulatory database disallows it caused issues with iwlwifi (and could cause issues with other devices); iwlwifi firmware would assert if you tried to connect to an AP that has an invalid configuration (e.g. using HT40- on channel 140.) Fix this, while avoiding the "Korean AP" issue by disabling HT40 and advertising HT20 to the AP when connecting. Cc: stable@vger.kernel.org [3.6] Reported-by: Florian Reitmeir Tested-by: Florian Reitmeir Signed-off-by: Johannes Berg diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index e510a33..1b7eed2 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -3099,22 +3099,32 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, ht_cfreq, ht_oper->primary_chan, cbss->channel->band); ht_oper = NULL; + } else { + channel_type = NL80211_CHAN_HT20; } } - if (ht_oper) { - channel_type = NL80211_CHAN_HT20; + if (ht_oper && sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) { + /* + * cfg80211 already verified that the channel itself can + * be used, but it didn't check that we can do the right + * HT type, so do that here as well. If HT40 isn't allowed + * on this channel, disable 40 MHz operation. + */ - if (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) { - switch (ht_oper->ht_param & - IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { - case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: + switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { + case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: + if (cbss->channel->flags & IEEE80211_CHAN_NO_HT40PLUS) + ifmgd->flags |= IEEE80211_STA_DISABLE_40MHZ; + else channel_type = NL80211_CHAN_HT40PLUS; - break; - case IEEE80211_HT_PARAM_CHA_SEC_BELOW: + break; + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: + if (cbss->channel->flags & IEEE80211_CHAN_NO_HT40MINUS) + ifmgd->flags |= IEEE80211_STA_DISABLE_40MHZ; + else channel_type = NL80211_CHAN_HT40MINUS; - break; - } + break; } } -- cgit v0.10.2 From d6ec6b60a56a1e7d99da1fc69c031fa5ab54ba94 Mon Sep 17 00:00:00 2001 From: Pritesh Raithatha Date: Wed, 17 Oct 2012 17:07:00 +0530 Subject: dt: Document: correct tegra20/30 pinctrl slew-rate name change nvidia,slew_rate* to nvidia,slew-rate* Cc: stable@kernel.org Signed-off-by: Pritesh Raithatha Acked-by: Stephen Warren Tested-by: Stephen Warren Signed-off-by: Linus Walleij diff --git a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra20-pinmux.txt b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra20-pinmux.txt index c8e5782..683fde9 100644 --- a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra20-pinmux.txt +++ b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra20-pinmux.txt @@ -93,7 +93,7 @@ Valid values for pin and group names are: With some exceptions, these support nvidia,high-speed-mode, nvidia,schmitt, nvidia,low-power-mode, nvidia,pull-down-strength, - nvidia,pull-up-strength, nvidia,slew_rate-rising, nvidia,slew_rate-falling. + nvidia,pull-up-strength, nvidia,slew-rate-rising, nvidia,slew-rate-falling. drive_ao1, drive_ao2, drive_at1, drive_at2, drive_cdev1, drive_cdev2, drive_csus, drive_dap1, drive_dap2, drive_dap3, drive_dap4, drive_dbg, diff --git a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra30-pinmux.txt b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra30-pinmux.txt index c275b70..6f426ed 100644 --- a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra30-pinmux.txt +++ b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra30-pinmux.txt @@ -83,7 +83,7 @@ Valid values for pin and group names are: drive groups: These all support nvidia,pull-down-strength, nvidia,pull-up-strength, - nvidia,slew_rate-rising, nvidia,slew_rate-falling. Most but not all + nvidia,slew-rate-rising, nvidia,slew-rate-falling. Most but not all support nvidia,high-speed-mode, nvidia,schmitt, nvidia,low-power-mode. ao1, ao2, at1, at2, at3, at4, at5, cdev1, cdev2, cec, crt, csus, dap1, -- cgit v0.10.2 From 154f3ebf53edcfbe28728452b4ab37a118581125 Mon Sep 17 00:00:00 2001 From: Pritesh Raithatha Date: Wed, 17 Oct 2012 17:09:36 +0530 Subject: pinctrl: tegra: set low power mode bank width to 2 Cc: stable@kernel.org Signed-off-by: Pritesh Raithatha Acked-by: Stephen Warren Tested-by: Stephen Warren Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/pinctrl-tegra.c b/drivers/pinctrl/pinctrl-tegra.c index 729b686..7da0b37 100644 --- a/drivers/pinctrl/pinctrl-tegra.c +++ b/drivers/pinctrl/pinctrl-tegra.c @@ -464,7 +464,7 @@ static int tegra_pinconf_reg(struct tegra_pmx *pmx, *bank = g->drv_bank; *reg = g->drv_reg; *bit = g->lpmd_bit; - *width = 1; + *width = 2; break; case TEGRA_PINCONF_PARAM_DRIVE_DOWN_STRENGTH: *bank = g->drv_bank; -- cgit v0.10.2 From a03690e44468dcd3088f6600ab036d17bd2130ff Mon Sep 17 00:00:00 2001 From: Pritesh Raithatha Date: Wed, 17 Oct 2012 11:51:37 +0530 Subject: pinctrl: tegra: correct bank for pingroup and drv pingroup Cc: stable@kernel.org Signed-off-by: Pritesh Raithatha Acked-by: Stephen Warren Tested-by: Stephen Warren Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/pinctrl-tegra30.c b/drivers/pinctrl/pinctrl-tegra30.c index 0386fdf..7894f14 100644 --- a/drivers/pinctrl/pinctrl-tegra30.c +++ b/drivers/pinctrl/pinctrl-tegra30.c @@ -3345,10 +3345,10 @@ static const struct tegra_function tegra30_functions[] = { FUNCTION(vi_alt3), }; -#define MUXCTL_REG_A 0x3000 -#define PINGROUP_REG_A 0x868 +#define DRV_PINGROUP_REG_A 0x868 /* bank 0 */ +#define PINGROUP_REG_A 0x3000 /* bank 1 */ -#define PINGROUP_REG_Y(r) ((r) - MUXCTL_REG_A) +#define PINGROUP_REG_Y(r) ((r) - PINGROUP_REG_A) #define PINGROUP_REG_N(r) -1 #define PINGROUP(pg_name, f0, f1, f2, f3, f_safe, r, od, ior) \ @@ -3364,25 +3364,25 @@ static const struct tegra_function tegra30_functions[] = { }, \ .func_safe = TEGRA_MUX_ ## f_safe, \ .mux_reg = PINGROUP_REG_Y(r), \ - .mux_bank = 0, \ + .mux_bank = 1, \ .mux_bit = 0, \ .pupd_reg = PINGROUP_REG_Y(r), \ - .pupd_bank = 0, \ + .pupd_bank = 1, \ .pupd_bit = 2, \ .tri_reg = PINGROUP_REG_Y(r), \ - .tri_bank = 0, \ + .tri_bank = 1, \ .tri_bit = 4, \ .einput_reg = PINGROUP_REG_Y(r), \ - .einput_bank = 0, \ + .einput_bank = 1, \ .einput_bit = 5, \ .odrain_reg = PINGROUP_REG_##od(r), \ - .odrain_bank = 0, \ + .odrain_bank = 1, \ .odrain_bit = 6, \ .lock_reg = PINGROUP_REG_Y(r), \ - .lock_bank = 0, \ + .lock_bank = 1, \ .lock_bit = 7, \ .ioreset_reg = PINGROUP_REG_##ior(r), \ - .ioreset_bank = 0, \ + .ioreset_bank = 1, \ .ioreset_bit = 8, \ .drv_reg = -1, \ } @@ -3401,8 +3401,8 @@ static const struct tegra_function tegra30_functions[] = { .odrain_reg = -1, \ .lock_reg = -1, \ .ioreset_reg = -1, \ - .drv_reg = ((r) - PINGROUP_REG_A), \ - .drv_bank = 1, \ + .drv_reg = ((r) - DRV_PINGROUP_REG_A), \ + .drv_bank = 0, \ .hsm_bit = hsm_b, \ .schmitt_bit = schmitt_b, \ .lpmd_bit = lpmd_b, \ -- cgit v0.10.2 From 2456f44dd7a9aaffc2cd21a13f78198b3d94da08 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Tue, 16 Oct 2012 19:35:14 +0100 Subject: ARM: 7555/1: kexec: fix segment memory addresses check Commit c564df4db85aac8d1d65a56176a0a25f46138064 (ARM: 7540/1: kexec: Check segment memory addresses) added a safety check with accidentally reversed condition, and broke kexec functionality on ARM. Fix this. Acked-by: Will Deacon Signed-off-by: Aaro Koskinen Signed-off-by: Russell King diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index e29c333..8ef8c93 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -45,10 +45,9 @@ int machine_kexec_prepare(struct kimage *image) for (i = 0; i < image->nr_segments; i++) { current_segment = &image->segment[i]; - err = memblock_is_region_memory(current_segment->mem, - current_segment->memsz); - if (err) - return - EINVAL; + if (!memblock_is_region_memory(current_segment->mem, + current_segment->memsz)) + return -EINVAL; err = get_user(header, (__be32*)current_segment->buf); if (err) -- cgit v0.10.2 From 3581fe0ef37ce12ac7a4f74831168352ae848edc Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Wed, 17 Oct 2012 12:01:34 +0100 Subject: ARM: 7556/1: perf: fix updated event period in response to PERF_EVENT_IOC_PERIOD The PERF_EVENT_IOC_PERIOD ioctl command can be used to change the sample period of a running perf_event. Consequently, when calculating the next event period, the new period will only be considered after the previous one has overflowed. This patch changes the calculation of the remaining event ticks so that they are offset if the period has changed. Cc: Peter Zijlstra Reported-by: Andreas Sandberg Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index 93971b1..53c0304 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -96,6 +96,10 @@ armpmu_event_set_period(struct perf_event *event, s64 period = hwc->sample_period; int ret = 0; + /* The period may have been changed by PERF_EVENT_IOC_PERIOD */ + if (unlikely(period != hwc->last_period)) + left = period - (hwc->last_period - left); + if (unlikely(left <= -period)) { left = period; local64_set(&hwc->period_left, left); -- cgit v0.10.2 From c4a9fafc77a5318f5ed26c509bbcddf03e18c201 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 17 Oct 2012 13:56:19 +0200 Subject: cfg80211: fix antenna gain handling No driver initializes chan->max_antenna_gain to something sensible, and the only place where it is being used right now is inside ath9k. This leads to ath9k potentially using less tx power than it can use, which can decrease performance/range in some rare cases. Rather than going through every single driver, this patch initializes chan->orig_mag in wiphy_register(), ignoring whatever value the driver left in there. If a driver for some reason wishes to limit it independent from regulatory rulesets, it can do so internally. Signed-off-by: Felix Fietkau Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg diff --git a/net/wireless/core.c b/net/wireless/core.c index 443d4d7..3f72530 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -526,8 +526,7 @@ int wiphy_register(struct wiphy *wiphy) for (i = 0; i < sband->n_channels; i++) { sband->channels[i].orig_flags = sband->channels[i].flags; - sband->channels[i].orig_mag = - sband->channels[i].max_antenna_gain; + sband->channels[i].orig_mag = INT_MAX; sband->channels[i].orig_mpwr = sband->channels[i].max_power; sband->channels[i].band = band; -- cgit v0.10.2 From 279f0f55249820d8129470c0e104084b252f26f3 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 17 Oct 2012 13:56:20 +0200 Subject: cfg80211: fix initialization of chan->max_reg_power A few places touch chan->max_power based on updated tx power rules, but forget to do the same to chan->max_reg_power. Signed-off-by: Felix Fietkau Signed-off-by: Johannes Berg diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 3b8cbbc..bcc7d7e 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -908,7 +908,7 @@ static void handle_channel(struct wiphy *wiphy, map_regdom_flags(reg_rule->flags) | bw_flags; chan->max_antenna_gain = chan->orig_mag = (int) MBI_TO_DBI(power_rule->max_antenna_gain); - chan->max_power = chan->orig_mpwr = + chan->max_reg_power = chan->max_power = chan->orig_mpwr = (int) MBM_TO_DBM(power_rule->max_eirp); return; } @@ -1331,7 +1331,8 @@ static void handle_channel_custom(struct wiphy *wiphy, chan->flags |= map_regdom_flags(reg_rule->flags) | bw_flags; chan->max_antenna_gain = (int) MBI_TO_DBI(power_rule->max_antenna_gain); - chan->max_power = (int) MBM_TO_DBM(power_rule->max_eirp); + chan->max_reg_power = chan->max_power = + (int) MBM_TO_DBM(power_rule->max_eirp); } static void handle_band_custom(struct wiphy *wiphy, enum ieee80211_band band, -- cgit v0.10.2 From 7f112af40fecf5399b61e69ffc6b55a9d82789f7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Linus=20L=C3=BCssing?= Date: Wed, 17 Oct 2012 14:53:04 +0200 Subject: batman-adv: Fix broadcast packet CRC calculation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit So far the crc16 checksum for a batman-adv broadcast data packet, received on a batman-adv hard interface, was calculated over zero bytes of its content leading to many incoming broadcast data packets wrongly being dropped (60-80% packet loss). This patch fixes this issue by calculating the crc16 over the actual, complete broadcast payload. The issue is a regression introduced by ("batman-adv: add broadcast duplicate check"). Signed-off-by: Linus Lüssing Acked-by: Simon Wunderlich Signed-off-by: Marek Lindner diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c index 0a9084a..eebab20 100644 --- a/net/batman-adv/bridge_loop_avoidance.c +++ b/net/batman-adv/bridge_loop_avoidance.c @@ -1210,8 +1210,8 @@ int batadv_bla_init(struct batadv_priv *bat_priv) /** * batadv_bla_check_bcast_duplist * @bat_priv: the bat priv with all the soft interface information - * @bcast_packet: originator mac address - * @hdr_size: maximum length of the frame + * @bcast_packet: encapsulated broadcast frame plus batman header + * @bcast_packet_len: length of encapsulated broadcast frame plus batman header * * check if it is on our broadcast list. Another gateway might * have sent the same packet because it is connected to the same backbone, @@ -1224,14 +1224,14 @@ int batadv_bla_init(struct batadv_priv *bat_priv) */ int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv, struct batadv_bcast_packet *bcast_packet, - int hdr_size) + int bcast_packet_len) { int i, length, curr; uint8_t *content; uint16_t crc; struct batadv_bcast_duplist_entry *entry; - length = hdr_size - sizeof(*bcast_packet); + length = bcast_packet_len - sizeof(*bcast_packet); content = (uint8_t *)bcast_packet; content += sizeof(*bcast_packet); diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c index 939fc01..376b4cc 100644 --- a/net/batman-adv/routing.c +++ b/net/batman-adv/routing.c @@ -1124,8 +1124,14 @@ int batadv_recv_bcast_packet(struct sk_buff *skb, spin_unlock_bh(&orig_node->bcast_seqno_lock); + /* keep skb linear for crc calculation */ + if (skb_linearize(skb) < 0) + goto out; + + bcast_packet = (struct batadv_bcast_packet *)skb->data; + /* check whether this has been sent by another originator before */ - if (batadv_bla_check_bcast_duplist(bat_priv, bcast_packet, hdr_size)) + if (batadv_bla_check_bcast_duplist(bat_priv, bcast_packet, skb->len)) goto out; /* rebroadcast packet */ -- cgit v0.10.2 From 7dac7b76b8db87fc79857a53a09730fb2148579b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Linus=20L=C3=BCssing?= Date: Wed, 17 Oct 2012 14:53:05 +0200 Subject: batman-adv: Fix potential broadcast BLA-duplicate-check race condition MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Threads in the bottom half of batadv_bla_check_bcast_duplist() might otherwise for instance overwrite variables which other threads might be using/reading at the same time in the top half, potentially leading to messing up the bcast_duplist, possibly resulting in false bridge loop avoidance duplicate check decisions. Signed-off-by: Linus Lüssing Acked-by: Simon Wunderlich Signed-off-by: Marek Lindner diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c index eebab20..fd8d5af 100644 --- a/net/batman-adv/bridge_loop_avoidance.c +++ b/net/batman-adv/bridge_loop_avoidance.c @@ -1167,6 +1167,8 @@ int batadv_bla_init(struct batadv_priv *bat_priv) uint16_t crc; unsigned long entrytime; + spin_lock_init(&bat_priv->bla.bcast_duplist_lock); + batadv_dbg(BATADV_DBG_BLA, bat_priv, "bla hash registering\n"); /* setting claim destination address */ @@ -1226,7 +1228,7 @@ int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv, struct batadv_bcast_packet *bcast_packet, int bcast_packet_len) { - int i, length, curr; + int i, length, curr, ret = 0; uint8_t *content; uint16_t crc; struct batadv_bcast_duplist_entry *entry; @@ -1238,6 +1240,8 @@ int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv, /* calculate the crc ... */ crc = crc16(0, content, length); + spin_lock_bh(&bat_priv->bla.bcast_duplist_lock); + for (i = 0; i < BATADV_DUPLIST_SIZE; i++) { curr = (bat_priv->bla.bcast_duplist_curr + i); curr %= BATADV_DUPLIST_SIZE; @@ -1259,9 +1263,12 @@ int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv, /* this entry seems to match: same crc, not too old, * and from another gw. therefore return 1 to forbid it. */ - return 1; + ret = 1; + goto out; } - /* not found, add a new entry (overwrite the oldest entry) */ + /* not found, add a new entry (overwrite the oldest entry) + * and allow it, its the first occurence. + */ curr = (bat_priv->bla.bcast_duplist_curr + BATADV_DUPLIST_SIZE - 1); curr %= BATADV_DUPLIST_SIZE; entry = &bat_priv->bla.bcast_duplist[curr]; @@ -1270,8 +1277,10 @@ int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv, memcpy(entry->orig, bcast_packet->orig, ETH_ALEN); bat_priv->bla.bcast_duplist_curr = curr; - /* allow it, its the first occurence. */ - return 0; +out: + spin_unlock_bh(&bat_priv->bla.bcast_duplist_lock); + + return ret; } diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h index 2ed82ca..ac1e07a 100644 --- a/net/batman-adv/types.h +++ b/net/batman-adv/types.h @@ -205,6 +205,8 @@ struct batadv_priv_bla { struct batadv_hashtable *backbone_hash; struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE]; int bcast_duplist_curr; + /* protects bcast_duplist and bcast_duplist_curr */ + spinlock_t bcast_duplist_lock; struct batadv_bla_claim_dst claim_dest; struct delayed_work work; }; -- cgit v0.10.2 From 8a095030f7551d07860fd54890d1bcdc77630c29 Mon Sep 17 00:00:00 2001 From: Doug Ledford Date: Wed, 17 Oct 2012 03:23:55 +0000 Subject: IB/mlx4: Fix build error on platforms where UL is not 64 bits Line 110 uses UL as a compiler cast for the 0x constant, but it's not large enough to hold a 64-bit value on a 32-bit arch. Signed-off-by: Doug Ledford [ Use "-1" instead of "FFFFFFFFFFFFFFFFULL". - Roland ] Signed-off-by: Roland Dreier diff --git a/drivers/infiniband/hw/mlx4/alias_GUID.c b/drivers/infiniband/hw/mlx4/alias_GUID.c index d2fb38d..2f215b9 100644 --- a/drivers/infiniband/hw/mlx4/alias_GUID.c +++ b/drivers/infiniband/hw/mlx4/alias_GUID.c @@ -107,7 +107,7 @@ static __be64 get_cached_alias_guid(struct mlx4_ib_dev *dev, int port, int index { if (index >= NUM_ALIAS_GUID_PER_PORT) { pr_err("%s: ERROR: asked for index:%d\n", __func__, index); - return (__force __be64) ((u64) 0xFFFFFFFFFFFFFFFFUL); + return (__force __be64) -1; } return *(__be64 *)&dev->sriov.demux[port - 1].guid_cache[index]; } -- cgit v0.10.2 From 2c75d2ccb6e5ffb96ce8624ef4c1f7ba5bd96499 Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Wed, 17 Oct 2012 16:42:58 +0000 Subject: IB/mlx4: Fix QP1 P_Key processing in the Primary Physical Function (PPF) In the MAD paravirtualization code, one of the checks performed when forwarding QP1 (GSI) packets from wire to slave was a P_Key check: the P_Key received in the MAD must be present in the guest's paravirtualized P_Key table, and at least one of the (packet P_Key, guest P_Key) must be a full-membership P_Key. However, if everyone involved has only limited membership in the default P_Key, then packets sent by full-member remote hosts arrive at the PPF but are not passed on to the VFs with the current P_Key1 check. Fix this as follows: 1. Don't care if P_Key received over wire is full or not. If it successfully passed HW checks on the real QP1, then simply pass it to guest regardless of whether the guest has full or limited membership in its P_Key table. 2. If the guest (including paravirtualized master) has both full and limited P_Key forms in its table, preferentially pass the paravirtualized P_Key index of the full P_Key form in the tunnel header. 3. In the multicast join flow (mlx4/mcg.c), use the index for the default P_Key (wherever it is located) in replies generated from within the mcg module (previously, P_Key index 0 was used in all cases). Signed-off-by: Jack Morgenstein Signed-off-by: Roland Dreier diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c index 21a7941..0a903c1 100644 --- a/drivers/infiniband/hw/mlx4/mad.c +++ b/drivers/infiniband/hw/mlx4/mad.c @@ -409,38 +409,45 @@ int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid) } -static int get_pkey_phys_indices(struct mlx4_ib_dev *ibdev, u8 port, u8 ph_pkey_ix, - u8 *full_pk_ix, u8 *partial_pk_ix, - int *is_full_member) +static int find_slave_port_pkey_ix(struct mlx4_ib_dev *dev, int slave, + u8 port, u16 pkey, u16 *ix) { - u16 search_pkey; - int fm; - int err = 0; - u16 pk; + int i, ret; + u8 unassigned_pkey_ix, pkey_ix, partial_ix = 0xFF; + u16 slot_pkey; - err = ib_get_cached_pkey(&ibdev->ib_dev, port, ph_pkey_ix, &search_pkey); - if (err) - return err; + if (slave == mlx4_master_func_num(dev->dev)) + return ib_find_cached_pkey(&dev->ib_dev, port, pkey, ix); - fm = (search_pkey & 0x8000) ? 1 : 0; - if (fm) { - *full_pk_ix = ph_pkey_ix; - search_pkey &= 0x7FFF; - } else { - *partial_pk_ix = ph_pkey_ix; - search_pkey |= 0x8000; - } + unassigned_pkey_ix = dev->dev->phys_caps.pkey_phys_table_len[port] - 1; - if (ib_find_exact_cached_pkey(&ibdev->ib_dev, port, search_pkey, &pk)) - pk = 0xFFFF; + for (i = 0; i < dev->dev->caps.pkey_table_len[port]; i++) { + if (dev->pkeys.virt2phys_pkey[slave][port - 1][i] == unassigned_pkey_ix) + continue; - if (fm) - *partial_pk_ix = (pk & 0xFF); - else - *full_pk_ix = (pk & 0xFF); + pkey_ix = dev->pkeys.virt2phys_pkey[slave][port - 1][i]; - *is_full_member = fm; - return err; + ret = ib_get_cached_pkey(&dev->ib_dev, port, pkey_ix, &slot_pkey); + if (ret) + continue; + if ((slot_pkey & 0x7FFF) == (pkey & 0x7FFF)) { + if (slot_pkey & 0x8000) { + *ix = (u16) pkey_ix; + return 0; + } else { + /* take first partial pkey index found */ + if (partial_ix == 0xFF) + partial_ix = pkey_ix; + } + } + } + + if (partial_ix < 0xFF) { + *ix = (u16) partial_ix; + return 0; + } + + return -EINVAL; } int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port, @@ -458,10 +465,8 @@ int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port, unsigned tun_tx_ix = 0; int dqpn; int ret = 0; - int i; - int is_full_member = 0; u16 tun_pkey_ix; - u8 ph_pkey_ix, full_pk_ix = 0, partial_pk_ix = 0; + u16 cached_pkey; if (dest_qpt > IB_QPT_GSI) return -EINVAL; @@ -481,27 +486,17 @@ int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port, else tun_qp = &tun_ctx->qp[1]; - /* compute pkey index for slave */ - /* get physical pkey -- virtualized Dom0 pkey to phys*/ + /* compute P_Key index to put in tunnel header for slave */ if (dest_qpt) { - ph_pkey_ix = - dev->pkeys.virt2phys_pkey[mlx4_master_func_num(dev->dev)][port - 1][wc->pkey_index]; - - /* now, translate this to the slave pkey index */ - ret = get_pkey_phys_indices(dev, port, ph_pkey_ix, &full_pk_ix, - &partial_pk_ix, &is_full_member); + u16 pkey_ix; + ret = ib_get_cached_pkey(&dev->ib_dev, port, wc->pkey_index, &cached_pkey); if (ret) return -EINVAL; - for (i = 0; i < dev->dev->caps.pkey_table_len[port]; i++) { - if ((dev->pkeys.virt2phys_pkey[slave][port - 1][i] == full_pk_ix) || - (is_full_member && - (dev->pkeys.virt2phys_pkey[slave][port - 1][i] == partial_pk_ix))) - break; - } - if (i == dev->dev->caps.pkey_table_len[port]) + ret = find_slave_port_pkey_ix(dev, slave, port, cached_pkey, &pkey_ix); + if (ret) return -EINVAL; - tun_pkey_ix = i; + tun_pkey_ix = pkey_ix; } else tun_pkey_ix = dev->pkeys.virt2phys_pkey[slave][port - 1][0]; diff --git a/drivers/infiniband/hw/mlx4/mcg.c b/drivers/infiniband/hw/mlx4/mcg.c index 3c3b54c..44ff480 100644 --- a/drivers/infiniband/hw/mlx4/mcg.c +++ b/drivers/infiniband/hw/mlx4/mcg.c @@ -233,7 +233,8 @@ static int send_mad_to_slave(int slave, struct mlx4_ib_demux_ctx *ctx, ib_query_ah(dev->sm_ah[ctx->port - 1], &ah_attr); - wc.pkey_index = 0; + if (ib_find_cached_pkey(&dev->ib_dev, ctx->port, IB_DEFAULT_PKEY_FULL, &wc.pkey_index)) + return -EINVAL; wc.sl = 0; wc.dlid_path_bits = 0; wc.port_num = ctx->port; -- cgit v0.10.2 From bef83ed92caca45a394344a14b0234aea977da6e Mon Sep 17 00:00:00 2001 From: Eli Cohen Date: Wed, 17 Oct 2012 16:42:59 +0000 Subject: IB/mlx4: Synchronize cleanup of MCGs in MCG paravirtualization A client re-register event invokes cleanup of all MCGs. This is required to protect against misbehaved guests leading to corruption of join/leave database. However, since cleaning up the MCGs is a heavy operation, it is pushed to a work queue for further processing. Client re-register is also propagated to ULPs (e.g IPoIB). However, since the cleanup is performed in a workqueue, the ULP could leave and re-join groups before the cleanup occurs. In this case, when the cleanup takes place, it prunes the (newly-joined) MCGs and the ULP is left without actual MCGs while believing it joined them. Fix this by setting the flushing flag before invoking the cleanup task and clearing it after flushing is complete. Signed-off-by: Eli Cohen Reviewed-by: Jack Morgenstein Signed-off-by: Roland Dreier diff --git a/drivers/infiniband/hw/mlx4/mcg.c b/drivers/infiniband/hw/mlx4/mcg.c index 44ff480..25b2cdf 100644 --- a/drivers/infiniband/hw/mlx4/mcg.c +++ b/drivers/infiniband/hw/mlx4/mcg.c @@ -1075,10 +1075,6 @@ static void _mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy unsigned long end; int count; - if (ctx->flushing) - return; - - ctx->flushing = 1; for (i = 0; i < MAX_VFS; ++i) clean_vf_mcast(ctx, i); @@ -1108,9 +1104,6 @@ static void _mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy force_clean_group(group); } mutex_unlock(&ctx->mcg_table_lock); - - if (!destroy_wq) - ctx->flushing = 0; } struct clean_work { @@ -1124,6 +1117,7 @@ static void mcg_clean_task(struct work_struct *work) struct clean_work *cw = container_of(work, struct clean_work, work); _mlx4_ib_mcg_port_cleanup(cw->ctx, cw->destroy_wq); + cw->ctx->flushing = 0; kfree(cw); } @@ -1131,13 +1125,20 @@ void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq) { struct clean_work *work; + if (ctx->flushing) + return; + + ctx->flushing = 1; + if (destroy_wq) { _mlx4_ib_mcg_port_cleanup(ctx, destroy_wq); + ctx->flushing = 0; return; } work = kmalloc(sizeof *work, GFP_KERNEL); if (!work) { + ctx->flushing = 0; mcg_warn("failed allocating work for cleanup\n"); return; } -- cgit v0.10.2 From 7ae9d71e8df27a3ab60a05ae3add08728debc09c Mon Sep 17 00:00:00 2001 From: Haojian Zhuang Date: Thu, 18 Oct 2012 17:07:01 +0800 Subject: pinctrl: remove mutex lock in groups show Mutex is locked duplicatly by pinconf_groups_show() and pin_config_group_get(). It results dead lock. So avoid to lock mutex in pinconf_groups_show(). Cc: stable@kernel.org Signed-off-by: Haojian Zhuang Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c index 43f474c..baee2cc 100644 --- a/drivers/pinctrl/pinconf.c +++ b/drivers/pinctrl/pinconf.c @@ -537,8 +537,6 @@ static int pinconf_groups_show(struct seq_file *s, void *what) seq_puts(s, "Pin config settings per pin group\n"); seq_puts(s, "Format: group (name): configs\n"); - mutex_lock(&pinctrl_mutex); - while (selector < ngroups) { const char *gname = pctlops->get_group_name(pctldev, selector); @@ -549,8 +547,6 @@ static int pinconf_groups_show(struct seq_file *s, void *what) selector++; } - mutex_unlock(&pinctrl_mutex); - return 0; } -- cgit v0.10.2 From af1b85e49089f945deb46258b0fc4bc9910afb22 Mon Sep 17 00:00:00 2001 From: Jay Purohit Date: Sun, 14 Oct 2012 07:07:21 +0000 Subject: usb/ipheth: Add iPhone 5 support I noticed that the iPhone ethernet driver did not support iPhone 5. I quickly added support to it in my kernel, here's a patch. Signed-off-by: Jay Purohit Acked-by: Valdis Kletnieks Signed-off-by: Jan Ceuleers Signed-off-by: David S. Miller diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c index a28a983..534d8be 100644 --- a/drivers/net/usb/ipheth.c +++ b/drivers/net/usb/ipheth.c @@ -62,6 +62,7 @@ #define USB_PRODUCT_IPAD 0x129a #define USB_PRODUCT_IPHONE_4_VZW 0x129c #define USB_PRODUCT_IPHONE_4S 0x12a0 +#define USB_PRODUCT_IPHONE_5 0x12a8 #define IPHETH_USBINTF_CLASS 255 #define IPHETH_USBINTF_SUBCLASS 253 @@ -113,6 +114,10 @@ static struct usb_device_id ipheth_table[] = { USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4S, IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, IPHETH_USBINTF_PROTO) }, + { USB_DEVICE_AND_INTERFACE_INFO( + USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_5, + IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, + IPHETH_USBINTF_PROTO) }, { } }; MODULE_DEVICE_TABLE(usb, ipheth_table); -- cgit v0.10.2 From 0ca7111a38f053ae7b8829ee32fca6f9ef47550a Mon Sep 17 00:00:00 2001 From: Matus Ujhelyi Date: Sun, 14 Oct 2012 19:07:16 +0000 Subject: phy: add AT803x driver This driver add support for wake over lan on AT803x phys. Signed-off-by: Matus Ujhelyi Signed-off-by: David S. Miller diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index 983bbf4..961f0b2 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -15,6 +15,11 @@ if PHYLIB comment "MII PHY device drivers" +config AT803X_PHY + tristate "Drivers for Atheros AT803X PHYs" + ---help--- + Currently supports the AT8030 and AT8035 model + config AMD_PHY tristate "Drivers for the AMD PHYs" ---help--- diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile index 426674d..9645e38 100644 --- a/drivers/net/phy/Makefile +++ b/drivers/net/phy/Makefile @@ -25,6 +25,7 @@ obj-$(CONFIG_STE10XP) += ste10Xp.o obj-$(CONFIG_MICREL_PHY) += micrel.o obj-$(CONFIG_MDIO_OCTEON) += mdio-octeon.o obj-$(CONFIG_MICREL_KS8995MA) += spi_ks8995.o +obj-$(CONFIG_AT803X_PHY) += at803x.o obj-$(CONFIG_AMD_PHY) += amd.o obj-$(CONFIG_MDIO_BUS_MUX) += mdio-mux.o obj-$(CONFIG_MDIO_BUS_MUX_GPIO) += mdio-mux-gpio.o diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c new file mode 100644 index 0000000..45cbc10 --- /dev/null +++ b/drivers/net/phy/at803x.c @@ -0,0 +1,176 @@ +/* + * drivers/net/phy/at803x.c + * + * Driver for Atheros 803x PHY + * + * Author: Matus Ujhelyi + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include +#include +#include +#include +#include + +#define AT803X_INTR_ENABLE 0x12 +#define AT803X_INTR_STATUS 0x13 +#define AT803X_WOL_ENABLE 0x01 +#define AT803X_DEVICE_ADDR 0x03 +#define AT803X_LOC_MAC_ADDR_0_15_OFFSET 0x804C +#define AT803X_LOC_MAC_ADDR_16_31_OFFSET 0x804B +#define AT803X_LOC_MAC_ADDR_32_47_OFFSET 0x804A +#define AT803X_MMD_ACCESS_CONTROL 0x0D +#define AT803X_MMD_ACCESS_CONTROL_DATA 0x0E +#define AT803X_FUNC_DATA 0x4003 + +MODULE_DESCRIPTION("Atheros 803x PHY driver"); +MODULE_AUTHOR("Matus Ujhelyi"); +MODULE_LICENSE("GPL"); + +static void at803x_set_wol_mac_addr(struct phy_device *phydev) +{ + struct net_device *ndev = phydev->attached_dev; + const u8 *mac; + unsigned int i, offsets[] = { + AT803X_LOC_MAC_ADDR_32_47_OFFSET, + AT803X_LOC_MAC_ADDR_16_31_OFFSET, + AT803X_LOC_MAC_ADDR_0_15_OFFSET, + }; + + if (!ndev) + return; + + mac = (const u8 *) ndev->dev_addr; + + if (!is_valid_ether_addr(mac)) + return; + + for (i = 0; i < 3; i++) { + phy_write(phydev, AT803X_MMD_ACCESS_CONTROL, + AT803X_DEVICE_ADDR); + phy_write(phydev, AT803X_MMD_ACCESS_CONTROL_DATA, + offsets[i]); + phy_write(phydev, AT803X_MMD_ACCESS_CONTROL, + AT803X_FUNC_DATA); + phy_write(phydev, AT803X_MMD_ACCESS_CONTROL_DATA, + mac[(i * 2) + 1] | (mac[(i * 2)] << 8)); + } +} + +static int at803x_config_init(struct phy_device *phydev) +{ + int val; + u32 features; + int status; + + features = SUPPORTED_TP | SUPPORTED_MII | SUPPORTED_AUI | + SUPPORTED_FIBRE | SUPPORTED_BNC; + + val = phy_read(phydev, MII_BMSR); + if (val < 0) + return val; + + if (val & BMSR_ANEGCAPABLE) + features |= SUPPORTED_Autoneg; + if (val & BMSR_100FULL) + features |= SUPPORTED_100baseT_Full; + if (val & BMSR_100HALF) + features |= SUPPORTED_100baseT_Half; + if (val & BMSR_10FULL) + features |= SUPPORTED_10baseT_Full; + if (val & BMSR_10HALF) + features |= SUPPORTED_10baseT_Half; + + if (val & BMSR_ESTATEN) { + val = phy_read(phydev, MII_ESTATUS); + if (val < 0) + return val; + + if (val & ESTATUS_1000_TFULL) + features |= SUPPORTED_1000baseT_Full; + if (val & ESTATUS_1000_THALF) + features |= SUPPORTED_1000baseT_Half; + } + + phydev->supported = features; + phydev->advertising = features; + + /* enable WOL */ + at803x_set_wol_mac_addr(phydev); + status = phy_write(phydev, AT803X_INTR_ENABLE, AT803X_WOL_ENABLE); + status = phy_read(phydev, AT803X_INTR_STATUS); + + return 0; +} + +/* ATHEROS 8035 */ +static struct phy_driver at8035_driver = { + .phy_id = 0x004dd072, + .name = "Atheros 8035 ethernet", + .phy_id_mask = 0xffffffef, + .config_init = at803x_config_init, + .features = PHY_GBIT_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .config_aneg = &genphy_config_aneg, + .read_status = &genphy_read_status, + .driver = { + .owner = THIS_MODULE, + }, +}; + +/* ATHEROS 8030 */ +static struct phy_driver at8030_driver = { + .phy_id = 0x004dd076, + .name = "Atheros 8030 ethernet", + .phy_id_mask = 0xffffffef, + .config_init = at803x_config_init, + .features = PHY_GBIT_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .config_aneg = &genphy_config_aneg, + .read_status = &genphy_read_status, + .driver = { + .owner = THIS_MODULE, + }, +}; + +static int __init atheros_init(void) +{ + int ret; + + ret = phy_driver_register(&at8035_driver); + if (ret) + goto err1; + + ret = phy_driver_register(&at8030_driver); + if (ret) + goto err2; + + return 0; + +err2: + phy_driver_unregister(&at8035_driver); +err1: + return ret; +} + +static void __exit atheros_exit(void) +{ + phy_driver_unregister(&at8035_driver); + phy_driver_unregister(&at8030_driver); +} + +module_init(atheros_init); +module_exit(atheros_exit); + +static struct mdio_device_id __maybe_unused atheros_tbl[] = { + { 0x004dd076, 0xffffffef }, + { 0x004dd072, 0xffffffef }, + { } +}; + +MODULE_DEVICE_TABLE(mdio, atheros_tbl); -- cgit v0.10.2 From 18c22a03a2187bcbda7d3a7fa1061584a6348e7b Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Wed, 17 Oct 2012 01:37:36 +0000 Subject: vlan: allow to change type when no vlan device is hooked on netdev vlan_info might be present but still no vlan devices might be there. That is in case of vlan0 automatically added. So in that case, allow to change netdev type. Reported-by: Jon Stanley Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 9096bcb..ee07072 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -463,7 +463,9 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event, case NETDEV_PRE_TYPE_CHANGE: /* Forbid underlaying device to change its type. */ - return NOTIFY_BAD; + if (vlan_uses_dev(dev)) + return NOTIFY_BAD; + break; case NETDEV_NOTIFY_PEERS: case NETDEV_BONDING_FAILOVER: -- cgit v0.10.2 From 13d82bf50dce632355fcccafa4fe44a9b5e706d8 Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Wed, 17 Oct 2012 21:17:44 +0000 Subject: ipv4: Fix flushing of cached routing informations Currently we can not flush cached pmtu/redirect informations via the ipv4_sysctl_rtcache_flush sysctl. We need to check the rt_genid of the old route and reset the nh exeption if the old route is expired when we bind a new route to a nh exeption. Signed-off-by: Steffen Klassert Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 432f4bb..a8c6512 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1163,8 +1163,12 @@ static bool rt_bind_exception(struct rtable *rt, struct fib_nh_exception *fnhe, spin_lock_bh(&fnhe_lock); if (daddr == fnhe->fnhe_daddr) { - struct rtable *orig; - + struct rtable *orig = rcu_dereference(fnhe->fnhe_rth); + if (orig && rt_is_expired(orig)) { + fnhe->fnhe_gw = 0; + fnhe->fnhe_pmtu = 0; + fnhe->fnhe_expires = 0; + } if (fnhe->fnhe_pmtu) { unsigned long expires = fnhe->fnhe_expires; unsigned long diff = expires - jiffies; @@ -1181,7 +1185,6 @@ static bool rt_bind_exception(struct rtable *rt, struct fib_nh_exception *fnhe, } else if (!rt->rt_gateway) rt->rt_gateway = daddr; - orig = rcu_dereference(fnhe->fnhe_rth); rcu_assign_pointer(fnhe->fnhe_rth, rt); if (orig) rt_free(orig); -- cgit v0.10.2 From 6d772ac5578f711d1ce7b03535d1c95bffb21dff Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 18 Oct 2012 03:21:55 +0000 Subject: netlink: use kfree_rcu() in netlink_release() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On some suspend/resume operations involving wimax device, we have noticed some intermittent memory corruptions in netlink code. Stéphane Marchesin tracked this corruption in netlink_update_listeners() and suggested a patch. It appears netlink_release() should use kfree_rcu() instead of kfree() for the listeners structure as it may be used by other cpus using RCU protection. netlink_release() must set to NULL the listeners pointer when it is about to be freed. Also have to protect netlink_update_listeners() and netlink_has_listeners() if listeners is NULL. Add a nl_deref_protected() lockdep helper to properly document which locks protects us. Reported-by: Jonathan Kliegman Signed-off-by: Eric Dumazet Cc: Stéphane Marchesin Cc: Sam Leffler Signed-off-by: David S. Miller diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 01e944a..4da797f 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -138,6 +138,8 @@ static int netlink_dump(struct sock *sk); static DEFINE_RWLOCK(nl_table_lock); static atomic_t nl_table_users = ATOMIC_INIT(0); +#define nl_deref_protected(X) rcu_dereference_protected(X, lockdep_is_held(&nl_table_lock)); + static ATOMIC_NOTIFIER_HEAD(netlink_chain); static inline u32 netlink_group_mask(u32 group) @@ -345,6 +347,11 @@ netlink_update_listeners(struct sock *sk) struct hlist_node *node; unsigned long mask; unsigned int i; + struct listeners *listeners; + + listeners = nl_deref_protected(tbl->listeners); + if (!listeners) + return; for (i = 0; i < NLGRPLONGS(tbl->groups); i++) { mask = 0; @@ -352,7 +359,7 @@ netlink_update_listeners(struct sock *sk) if (i < NLGRPLONGS(nlk_sk(sk)->ngroups)) mask |= nlk_sk(sk)->groups[i]; } - tbl->listeners->masks[i] = mask; + listeners->masks[i] = mask; } /* this function is only called with the netlink table "grabbed", which * makes sure updates are visible before bind or setsockopt return. */ @@ -536,7 +543,11 @@ static int netlink_release(struct socket *sock) if (netlink_is_kernel(sk)) { BUG_ON(nl_table[sk->sk_protocol].registered == 0); if (--nl_table[sk->sk_protocol].registered == 0) { - kfree(nl_table[sk->sk_protocol].listeners); + struct listeners *old; + + old = nl_deref_protected(nl_table[sk->sk_protocol].listeners); + RCU_INIT_POINTER(nl_table[sk->sk_protocol].listeners, NULL); + kfree_rcu(old, rcu); nl_table[sk->sk_protocol].module = NULL; nl_table[sk->sk_protocol].bind = NULL; nl_table[sk->sk_protocol].flags = 0; @@ -982,7 +993,7 @@ int netlink_has_listeners(struct sock *sk, unsigned int group) rcu_read_lock(); listeners = rcu_dereference(nl_table[sk->sk_protocol].listeners); - if (group - 1 < nl_table[sk->sk_protocol].groups) + if (listeners && group - 1 < nl_table[sk->sk_protocol].groups) res = test_bit(group - 1, listeners->masks); rcu_read_unlock(); @@ -1625,7 +1636,7 @@ int __netlink_change_ngroups(struct sock *sk, unsigned int groups) new = kzalloc(sizeof(*new) + NLGRPSZ(groups), GFP_ATOMIC); if (!new) return -ENOMEM; - old = rcu_dereference_protected(tbl->listeners, 1); + old = nl_deref_protected(tbl->listeners); memcpy(new->masks, old->masks, NLGRPSZ(tbl->groups)); rcu_assign_pointer(tbl->listeners, new); -- cgit v0.10.2 From c6846ee148e07e4cfae4de486532efb02d238938 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Thu, 18 Oct 2012 05:11:29 +0000 Subject: net: qmi_wwan: adding more ZTE devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Analyzed a few Windows driver description files, supporting this long list of devices: %ztewwan.DeviceDesc0002% = ztewwan.ndi, USB\VID_19D2&PID_0002&MI_01 %ztewwan.DeviceDesc0012% = ztewwan.ndi, USB\VID_19D2&PID_0012&MI_01 %ztewwan.DeviceDesc0017% = ztewwan.ndi, USB\VID_19D2&PID_0017&MI_03 %ztewwan.DeviceDesc0021% = ztewwan.ndi, USB\VID_19D2&PID_0021&MI_04 %ztewwan.DeviceDesc0025% = ztewwan.ndi, USB\VID_19D2&PID_0025&MI_01 %ztewwan.DeviceDesc0031% = ztewwan.ndi, USB\VID_19D2&PID_0031&MI_04 %ztewwan.DeviceDesc0042% = ztewwan.ndi, USB\VID_19D2&PID_0042&MI_04 %ztewwan.DeviceDesc0049% = ztewwan.ndi, USB\VID_19D2&PID_0049&MI_05 %ztewwan.DeviceDesc0052% = ztewwan.ndi, USB\VID_19D2&PID_0052&MI_04 %ztewwan.DeviceDesc0055% = ztewwan.ndi, USB\VID_19D2&PID_0055&MI_01 %ztewwan.DeviceDesc0058% = ztewwan.ndi, USB\VID_19D2&PID_0058&MI_04 %ztewwan.DeviceDesc0063% = ztewwan.ndi, USB\VID_19D2&PID_0063&MI_04 %ztewwan.DeviceDesc2002% = ztewwan.ndi, USB\VID_19D2&PID_2002&MI_04 %ztewwan.DeviceDesc0104% = ztewwan.ndi, USB\VID_19D2&PID_0104&MI_04 %ztewwan.DeviceDesc0113% = ztewwan.ndi, USB\VID_19D2&PID_0113&MI_05 %ztewwan.DeviceDesc0118% = ztewwan.ndi, USB\VID_19D2&PID_0118&MI_05 %ztewwan.DeviceDesc0121% = ztewwan.ndi, USB\VID_19D2&PID_0121&MI_05 %ztewwan.DeviceDesc0123% = ztewwan.ndi, USB\VID_19D2&PID_0123&MI_04 %ztewwan.DeviceDesc0124% = ztewwan.ndi, USB\VID_19D2&PID_0124&MI_05 %ztewwan.DeviceDesc0125% = ztewwan.ndi, USB\VID_19D2&PID_0125&MI_06 %ztewwan.DeviceDesc0126% = ztewwan.ndi, USB\VID_19D2&PID_0126&MI_05 %ztewwan.DeviceDesc1008% = ztewwan.ndi, USB\VID_19D2&PID_1008&MI_04 %ztewwan.DeviceDesc1010% = ztewwan.ndi, USB\VID_19D2&PID_1010&MI_04 %ztewwan.DeviceDesc1012% = ztewwan.ndi, USB\VID_19D2&PID_1012&MI_04 %ztewwan.DeviceDesc1402% = ztewwan.ndi, USB\VID_19D2&PID_1402&MI_02 %ztewwan.DeviceDesc0157% = ztewwan.ndi, USB\VID_19D2&PID_0157&MI_05 %ztewwan.DeviceDesc0158% = ztewwan.ndi, USB\VID_19D2&PID_0158&MI_03 %ztewwan.DeviceDesc1401% = ztewwan.ndi, USB\VID_19D2&PID_1401&MI_02 %ztewwan.DeviceDesc0130% = ztewwan.ndi, USB\VID_19D2&PID_0130&MI_01 %ztewwan.DeviceDesc0133% = ztewwan.ndi, USB\VID_19D2&PID_0133&MI_03 %ztewwan.DeviceDesc0176% = ztewwan.ndi, USB\VID_19D2&PID_0176&MI_03 %ztewwan.DeviceDesc0178% = ztewwan.ndi, USB\VID_19D2&PID_0178&MI_03 %ztewwan.DeviceDesc0168% = ztewwan.ndi, USB\VID_19D2&PID_0168&MI_04 ;EuFi890 %ztewwan.DeviceDesc0191% = ztewwan.ndi, USB\VID_19D2&PID_0191&MI_04 ;AL621 %ztewwan.DeviceDesc0167% = ztewwan.ndi, USB\VID_19D2&PID_0167&MI_04 ;MF821 %ztewwan.DeviceDesc0199% = ztewwan.ndi, USB\VID_19D2&PID_0199&MI_01 %ztewwan.DeviceDesc0200% = ztewwan.ndi, USB\VID_19D2&PID_0200&MI_01 %ztewwan.DeviceDesc0257% = ztewwan.ndi, USB\VID_19D2&PID_0257&MI_03 ;MF821V %ztewwan.DeviceDesc1018% = ztewwan.ndi, USB\VID_19D2&PID_1018&MI_03 ;MF91 %ztewwan.DeviceDesc1426% = ztewwan.ndi, USB\VID_19D2&PID_1426&MI_02 ;0141 %ztewwan.DeviceDesc1247% = ztewwan.ndi, USB\VID_19D2&PID_1247&MI_04 %ztewwan.DeviceDesc1425% = ztewwan.ndi, USB\VID_19D2&PID_1425&MI_02 %ztewwan.DeviceDesc1424% = ztewwan.ndi, USB\VID_19D2&PID_1424&MI_02 %ztewwan.DeviceDesc1252% = ztewwan.ndi, USB\VID_19D2&PID_1252&MI_04 %ztewwan.DeviceDesc1254% = ztewwan.ndi, USB\VID_19D2&PID_1254&MI_04 %ztewwan.DeviceDesc1255A% = ztewwan.ndi, USB\VID_19D2&PID_1255&MI_03 %ztewwan.DeviceDesc1255B% = ztewwan.ndi, USB\VID_19D2&PID_1255&MI_04 %ztewwan.DeviceDesc1256% = ztewwan.ndi, USB\VID_19D2&PID_1256&MI_04 %ztewwan.DeviceDesc1245% = ztewwanCombB.ndi, USB\VID_19D2&PID_1245&MI_04 %ztewwan.DeviceDesc1021% = ztewwan.ndi, USB\VID_19D2&PID_1021&MI_02 Adding the ones we were missing. Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 6883c37..9d23ba2 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -371,16 +371,57 @@ static const struct usb_device_id products[] = { }, /* 3. Combined interface devices matching on interface number */ + {QMI_FIXED_INTF(0x19d2, 0x0002, 1)}, + {QMI_FIXED_INTF(0x19d2, 0x0012, 1)}, + {QMI_FIXED_INTF(0x19d2, 0x0017, 3)}, + {QMI_FIXED_INTF(0x19d2, 0x0021, 4)}, + {QMI_FIXED_INTF(0x19d2, 0x0025, 1)}, + {QMI_FIXED_INTF(0x19d2, 0x0031, 4)}, + {QMI_FIXED_INTF(0x19d2, 0x0042, 4)}, + {QMI_FIXED_INTF(0x19d2, 0x0049, 5)}, + {QMI_FIXED_INTF(0x19d2, 0x0052, 4)}, {QMI_FIXED_INTF(0x19d2, 0x0055, 1)}, /* ZTE (Vodafone) K3520-Z */ + {QMI_FIXED_INTF(0x19d2, 0x0058, 4)}, {QMI_FIXED_INTF(0x19d2, 0x0063, 4)}, /* ZTE (Vodafone) K3565-Z */ {QMI_FIXED_INTF(0x19d2, 0x0104, 4)}, /* ZTE (Vodafone) K4505-Z */ + {QMI_FIXED_INTF(0x19d2, 0x0113, 5)}, + {QMI_FIXED_INTF(0x19d2, 0x0118, 5)}, + {QMI_FIXED_INTF(0x19d2, 0x0121, 5)}, + {QMI_FIXED_INTF(0x19d2, 0x0123, 4)}, + {QMI_FIXED_INTF(0x19d2, 0x0124, 5)}, + {QMI_FIXED_INTF(0x19d2, 0x0125, 6)}, + {QMI_FIXED_INTF(0x19d2, 0x0126, 5)}, + {QMI_FIXED_INTF(0x19d2, 0x0130, 1)}, + {QMI_FIXED_INTF(0x19d2, 0x0133, 3)}, + {QMI_FIXED_INTF(0x19d2, 0x0141, 5)}, {QMI_FIXED_INTF(0x19d2, 0x0157, 5)}, /* ZTE MF683 */ + {QMI_FIXED_INTF(0x19d2, 0x0158, 3)}, {QMI_FIXED_INTF(0x19d2, 0x0167, 4)}, /* ZTE MF820D */ + {QMI_FIXED_INTF(0x19d2, 0x0168, 4)}, + {QMI_FIXED_INTF(0x19d2, 0x0176, 3)}, + {QMI_FIXED_INTF(0x19d2, 0x0178, 3)}, + {QMI_FIXED_INTF(0x19d2, 0x0191, 4)}, /* ZTE EuFi890 */ + {QMI_FIXED_INTF(0x19d2, 0x0199, 1)}, /* ZTE MF820S */ + {QMI_FIXED_INTF(0x19d2, 0x0200, 1)}, + {QMI_FIXED_INTF(0x19d2, 0x0257, 3)}, /* ZTE MF821 */ {QMI_FIXED_INTF(0x19d2, 0x0326, 4)}, /* ZTE MF821D */ {QMI_FIXED_INTF(0x19d2, 0x1008, 4)}, /* ZTE (Vodafone) K3570-Z */ {QMI_FIXED_INTF(0x19d2, 0x1010, 4)}, /* ZTE (Vodafone) K3571-Z */ + {QMI_FIXED_INTF(0x19d2, 0x1012, 4)}, {QMI_FIXED_INTF(0x19d2, 0x1018, 3)}, /* ZTE (Vodafone) K5006-Z */ + {QMI_FIXED_INTF(0x19d2, 0x1021, 2)}, + {QMI_FIXED_INTF(0x19d2, 0x1245, 4)}, + {QMI_FIXED_INTF(0x19d2, 0x1247, 4)}, + {QMI_FIXED_INTF(0x19d2, 0x1252, 4)}, + {QMI_FIXED_INTF(0x19d2, 0x1254, 4)}, + {QMI_FIXED_INTF(0x19d2, 0x1255, 3)}, + {QMI_FIXED_INTF(0x19d2, 0x1255, 4)}, + {QMI_FIXED_INTF(0x19d2, 0x1256, 4)}, + {QMI_FIXED_INTF(0x19d2, 0x1401, 2)}, {QMI_FIXED_INTF(0x19d2, 0x1402, 2)}, /* ZTE MF60 */ + {QMI_FIXED_INTF(0x19d2, 0x1424, 2)}, + {QMI_FIXED_INTF(0x19d2, 0x1425, 2)}, + {QMI_FIXED_INTF(0x19d2, 0x1426, 2)}, /* ZTE MF91 */ {QMI_FIXED_INTF(0x19d2, 0x2002, 4)}, /* ZTE (Vodafone) K3765-Z */ {QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)}, /* Sierra Wireless MC7700 */ {QMI_FIXED_INTF(0x114f, 0x68a2, 8)}, /* Sierra Wireless MC7750 */ -- cgit v0.10.2 From a3374c42aa5f7237e87ff3b0622018636b0c847e Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 18 Oct 2012 09:14:12 +0000 Subject: tcp: fix FIONREAD/SIOCINQ tcp_ioctl() tries to take into account if tcp socket received a FIN to report correct number bytes in receive queue. But its flaky because if the application ate the last skb, we return 1 instead of 0. Correct way to detect that FIN was received is to test SOCK_DONE. Reported-by: Elliot Hughes Signed-off-by: Eric Dumazet Cc: Neal Cardwell Cc: Tom Herbert Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index f32c02e..b7c2f43 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -549,14 +549,12 @@ int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg) !tp->urg_data || before(tp->urg_seq, tp->copied_seq) || !before(tp->urg_seq, tp->rcv_nxt)) { - struct sk_buff *skb; answ = tp->rcv_nxt - tp->copied_seq; - /* Subtract 1, if FIN is in queue. */ - skb = skb_peek_tail(&sk->sk_receive_queue); - if (answ && skb) - answ -= tcp_hdr(skb)->fin; + /* Subtract 1, if FIN was received */ + if (answ && sock_flag(sk, SOCK_DONE)) + answ--; } else answ = tp->urg_seq - tp->copied_seq; release_sock(sk); -- cgit v0.10.2 From ed7d132a634e7e4c3fa657363df5df39e7f768e4 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Sun, 14 Oct 2012 23:35:24 -0700 Subject: ARM: shmobile: r8a7779: I/O address abuse cleanup a2a47ca36642e3995e982957bc42678cf11ca6ac (ARM: __io abuse cleanup) cleanuped __io() -> IOMEM(), but setup-r8a7779.c was out of target, since it directly used (void __iomem __force *) instead of __io(). This patch cleanup it. Signed-off-by: Kuninori Morimoto Signed-off-by: Simon Horman diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c index 2917668..ebbffc2 100644 --- a/arch/arm/mach-shmobile/setup-r8a7779.c +++ b/arch/arm/mach-shmobile/setup-r8a7779.c @@ -247,7 +247,7 @@ void __init r8a7779_add_standard_devices(void) { #ifdef CONFIG_CACHE_L2X0 /* Early BRESP enable, Shared attribute override enable, 64K*16way */ - l2x0_init((void __iomem __force *)(0xf0100000), 0x40470000, 0x82000fff); + l2x0_init(IOMEM(0xf0100000), 0x40470000, 0x82000fff); #endif r8a7779_pm_init(); -- cgit v0.10.2 From 9dbf8ccde1b810a59b684e1d1aec7f9d2d007162 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 15 Oct 2012 10:35:00 +0100 Subject: iio: Add some helper macros for unit conversion Some datasheets use a different unit to specify the channel scale than what IIO expects it to be. This patch adds two helper macros which allow to convert units commonly used in datasheets to IIO units: * acceleration: g -> meter / second**2 * angular velocity: degree (/ second) -> rad (/ second) This makes it much more convenient to specify and also easier to verify a channel's scale attribute. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index c0ae76a..7806c24 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -618,4 +618,20 @@ static inline struct dentry *iio_get_debugfs_dentry(struct iio_dev *indio_dev) }; #endif +/** + * IIO_DEGREE_TO_RAD() - Convert degree to rad + * @deg: A value in degree + * + * Returns the given value converted from degree to rad + */ +#define IIO_DEGREE_TO_RAD(deg) (((deg) * 314159ULL + 9000000ULL) / 18000000ULL) + +/** + * IIO_G_TO_M_S_2() - Convert g to meter / second**2 + * @g: A value in g + * + * Returns the given value converted from g to meter / second**2 + */ +#define IIO_G_TO_M_S_2(g) ((g) * 980665ULL / 100000ULL) + #endif /* _INDUSTRIAL_IO_H_ */ -- cgit v0.10.2 From 8735cf94afc1a63526417762c288501fc239c12d Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 15 Oct 2012 10:35:00 +0100 Subject: staging:iio: Fix adis16201 channel offsets and scales Most of the channel offsets and scales in the adis16201 are incorrect: * Temperature scale is off by a factor of 1000 * Voltage scale is off by a factor of 1000 * Acceleration scale is in g instead of m/(s**2) * Temperature offset is completely wrong This patch fixes these issues. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/accel/adis16201_core.c b/drivers/staging/iio/accel/adis16201_core.c index 8e37d6e..b12ca68 100644 --- a/drivers/staging/iio/accel/adis16201_core.c +++ b/drivers/staging/iio/accel/adis16201_core.c @@ -310,30 +310,32 @@ static int adis16201_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_SCALE: switch (chan->type) { case IIO_VOLTAGE: - *val = 0; - if (chan->channel == 0) - *val2 = 1220; - else - *val2 = 610; + if (chan->channel == 0) { + *val = 1; + *val2 = 220000; /* 1.22 mV */ + } else { + *val = 0; + *val2 = 610000; /* 0.610 mV */ + } return IIO_VAL_INT_PLUS_MICRO; case IIO_TEMP: - *val = 0; - *val2 = -470000; + *val = -470; /* 0.47 C */ + *val2 = 0; return IIO_VAL_INT_PLUS_MICRO; case IIO_ACCEL: *val = 0; - *val2 = 462500; - return IIO_VAL_INT_PLUS_MICRO; + *val2 = IIO_G_TO_M_S_2(462400); /* 0.4624 mg */ + return IIO_VAL_INT_PLUS_NANO; case IIO_INCLI: *val = 0; - *val2 = 100000; + *val2 = 100000; /* 0.1 degree */ return IIO_VAL_INT_PLUS_MICRO; default: return -EINVAL; } break; case IIO_CHAN_INFO_OFFSET: - *val = 25; + *val = 25000 / -470 - 1278; /* 25 C = 1278 */ return IIO_VAL_INT; case IIO_CHAN_INFO_CALIBBIAS: switch (chan->type) { -- cgit v0.10.2 From 10dda40fb605c6468045906b0bce08e2e12c0aca Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 15 Oct 2012 10:35:00 +0100 Subject: staging:iio: Fix adis16203 channel offsets and scales Most of the channel offsets and scales in the adis16203 are incorrect: * Temperature scale is off by a factor of 1000 * Voltage scale is off by a factor of 1000 * Temperature offset is completely wrong This patch fixes these issues. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/accel/adis16203_core.c b/drivers/staging/iio/accel/adis16203_core.c index 002fa9d..e7b3441 100644 --- a/drivers/staging/iio/accel/adis16203_core.c +++ b/drivers/staging/iio/accel/adis16203_core.c @@ -316,25 +316,27 @@ static int adis16203_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_SCALE: switch (chan->type) { case IIO_VOLTAGE: - *val = 0; - if (chan->channel == 0) - *val2 = 1220; - else - *val2 = 610; + if (chan->channel == 0) { + *val = 1; + *val2 = 220000; /* 1.22 mV */ + } else { + *val = 0; + *val2 = 610000; /* 0.61 mV */ + } return IIO_VAL_INT_PLUS_MICRO; case IIO_TEMP: - *val = 0; - *val2 = -470000; + *val = -470; /* -0.47 C */ + *val2 = 0; return IIO_VAL_INT_PLUS_MICRO; case IIO_INCLI: *val = 0; - *val2 = 25000; + *val2 = 25000; /* 0.025 degree */ return IIO_VAL_INT_PLUS_MICRO; default: return -EINVAL; } case IIO_CHAN_INFO_OFFSET: - *val = 25; + *val = 25000 / -470 - 1278; /* 25 C = 1278 */ return IIO_VAL_INT; case IIO_CHAN_INFO_CALIBBIAS: bits = 14; -- cgit v0.10.2 From 9cc19b81d7363f630593ad7ceab9fa12a105fc25 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 15 Oct 2012 10:35:00 +0100 Subject: staging:iio: Fix adis16204 channel offsets and scales Most of the channel offsets and scales in the adis16204 are incorrect: * Temperature scale is off by a factor of 1000 * Voltage scale is off by a factor of 1000 * Acceleration is scale is in g instead of m/(s**2) * Temperature offset is completely wrong This patch fixes these issues. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/accel/adis16204_core.c b/drivers/staging/iio/accel/adis16204_core.c index 05bdb7c..c6234c2 100644 --- a/drivers/staging/iio/accel/adis16204_core.c +++ b/drivers/staging/iio/accel/adis16204_core.c @@ -317,26 +317,28 @@ static int adis16204_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_SCALE: switch (chan->type) { case IIO_VOLTAGE: - *val = 0; - if (chan->channel == 0) - *val2 = 1220; - else - *val2 = 610; + if (chan->channel == 0) { + *val = 1; + *val2 = 220000; /* 1.22 mV */ + } else { + *val = 0; + *val2 = 610000; /* 0.61 mV */ + } return IIO_VAL_INT_PLUS_MICRO; case IIO_TEMP: - *val = 0; - *val2 = -470000; + *val = -470; /* 0.47 C */ + *val2 = 0; return IIO_VAL_INT_PLUS_MICRO; case IIO_ACCEL: *val = 0; switch (chan->channel2) { case IIO_MOD_X: case IIO_MOD_ROOT_SUM_SQUARED_X_Y: - *val2 = 17125; + *val2 = IIO_G_TO_M_S_2(17125); /* 17.125 mg */ break; case IIO_MOD_Y: case IIO_MOD_Z: - *val2 = 8407; + *val2 = IIO_G_TO_M_S_2(8407); /* 8.407 mg */ break; } return IIO_VAL_INT_PLUS_MICRO; @@ -345,7 +347,7 @@ static int adis16204_read_raw(struct iio_dev *indio_dev, } break; case IIO_CHAN_INFO_OFFSET: - *val = 25; + *val = 25000 / -470 - 1278; /* 25 C = 1278 */ return IIO_VAL_INT; case IIO_CHAN_INFO_CALIBBIAS: case IIO_CHAN_INFO_PEAK: -- cgit v0.10.2 From d5304b771203b62430776f3fca4823670282cbe4 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 15 Oct 2012 10:35:00 +0100 Subject: staging:iio: Fix adis16209 channel offsets and scales Most of the channel offsets and scales in the adis16209 are incorrect: * Temperature scale is of by a factor of 1000 * Voltage scale is of by a factor of 1000 * Temperature offset is completely wrong * Rotational position scale is missing This patch fixes these issues. Also use the IIO_G_TO_M_S_2 macro for the acceleration scale since this makes it much easier to compare it with the value given in the datasheet. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/accel/adis16209_core.c b/drivers/staging/iio/accel/adis16209_core.c index b7333bf..7ee974b 100644 --- a/drivers/staging/iio/accel/adis16209_core.c +++ b/drivers/staging/iio/accel/adis16209_core.c @@ -343,28 +343,29 @@ static int adis16209_read_raw(struct iio_dev *indio_dev, case IIO_VOLTAGE: *val = 0; if (chan->channel == 0) - *val2 = 305180; + *val2 = 305180; /* 0.30518 mV */ else - *val2 = 610500; + *val2 = 610500; /* 0.6105 mV */ return IIO_VAL_INT_PLUS_MICRO; case IIO_TEMP: - *val = 0; - *val2 = -470000; + *val = -470; /* -0.47 C */ + *val2 = 0; return IIO_VAL_INT_PLUS_MICRO; case IIO_ACCEL: *val = 0; - *val2 = 2394; - return IIO_VAL_INT_PLUS_MICRO; + *val2 = IIO_G_TO_M_S_2(244140); /* 0.244140 mg */ + return IIO_VAL_INT_PLUS_NANO; case IIO_INCLI: + case IIO_ROT: *val = 0; - *val2 = 436; + *val2 = 25000; /* 0.025 degree */ return IIO_VAL_INT_PLUS_MICRO; default: return -EINVAL; } break; case IIO_CHAN_INFO_OFFSET: - *val = 25; + *val = 25000 / -470 - 0x4FE; /* 25 C = 0x4FE */ return IIO_VAL_INT; case IIO_CHAN_INFO_CALIBBIAS: switch (chan->type) { @@ -491,6 +492,7 @@ static const struct iio_chan_spec adis16209_channels[] = { .modified = 1, .channel2 = IIO_MOD_X, .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT, + IIO_CHAN_INFO_SCALE_SHARED_BIT, .address = rot, .scan_index = ADIS16209_SCAN_ROT, .scan_type = { -- cgit v0.10.2 From 45240340568a799fa140645af2a45600dfe68694 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 15 Oct 2012 10:35:00 +0100 Subject: staging:iio: Fix adis16220 channel offsets and scales Most of the channel offsets and scales in the adis16220 are incorrect: * Temperature scale is off by a factor of 1000 * Voltage scale is off by a factor of 1000 * Acceleration seems to have a typo "187042" since it should be instead of "1887042" * Temperature offset is completely wrong This patch fixes these issues. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/accel/adis16220_core.c b/drivers/staging/iio/accel/adis16220_core.c index c755089..eaadd9d 100644 --- a/drivers/staging/iio/accel/adis16220_core.c +++ b/drivers/staging/iio/accel/adis16220_core.c @@ -486,7 +486,7 @@ static int adis16220_read_raw(struct iio_dev *indio_dev, break; case IIO_CHAN_INFO_OFFSET: if (chan->type == IIO_TEMP) { - *val = 25; + *val = 25000 / -470 - 1278; /* 25 C = 1278 */ return IIO_VAL_INT; } addrind = 1; @@ -495,19 +495,22 @@ static int adis16220_read_raw(struct iio_dev *indio_dev, addrind = 2; break; case IIO_CHAN_INFO_SCALE: - *val = 0; switch (chan->type) { case IIO_TEMP: - *val2 = -470000; + *val = -470; /* -0.47 C */ + *val2 = 0; return IIO_VAL_INT_PLUS_MICRO; case IIO_ACCEL: - *val2 = 1887042; + *val2 = IIO_G_TO_M_S_2(19073); /* 19.073 g */ return IIO_VAL_INT_PLUS_MICRO; case IIO_VOLTAGE: - if (chan->channel == 0) - *val2 = 0012221; - else /* Should really be dependent on VDD */ - *val2 = 305; + if (chan->channel == 0) { + *val = 1; + *val2 = 220700; /* 1.2207 mV */ + } else { + /* Should really be dependent on VDD */ + *val2 = 305180; /* 305.18 uV */ + } return IIO_VAL_INT_PLUS_MICRO; default: return -EINVAL; -- cgit v0.10.2 From acba41f81f4380ad24905df4c3c0ad7f272b338f Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 15 Oct 2012 10:35:00 +0100 Subject: staging:iio: Fix adis16240 channel offsets and scales Most of the channel offsets and scales in the adis16240 are incorrect: * Temperature scale is of by a factor of 1000 * Voltage scale is of by a factor of 1000 * Temperature offset is completely wrong * Peak scale is completely wrong This patch fixes these issues. Also use the IIO_G_TO_M_S_2 macro for the acceleration scale since this makes it much easier to compare it to the value given in the datasheet. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/accel/adis16240_core.c b/drivers/staging/iio/accel/adis16240_core.c index 0fc26a49..35e0939 100644 --- a/drivers/staging/iio/accel/adis16240_core.c +++ b/drivers/staging/iio/accel/adis16240_core.c @@ -373,30 +373,31 @@ static int adis16240_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_SCALE: switch (chan->type) { case IIO_VOLTAGE: - *val = 0; - if (chan->channel == 0) - *val2 = 4880; - else + if (chan->channel == 0) { + *val = 4; + *val2 = 880000; /* 4.88 mV */ + return IIO_VAL_INT_PLUS_MICRO; + } else { return -EINVAL; - return IIO_VAL_INT_PLUS_MICRO; + } case IIO_TEMP: - *val = 0; - *val2 = 244000; + *val = 244; /* 0.244 C */ + *val2 = 0; return IIO_VAL_INT_PLUS_MICRO; case IIO_ACCEL: *val = 0; - *val2 = 504062; + *val2 = IIO_G_TO_M_S_2(51400); /* 51.4 mg */ return IIO_VAL_INT_PLUS_MICRO; default: return -EINVAL; } break; case IIO_CHAN_INFO_PEAK_SCALE: - *val = 6; - *val2 = 629295; + *val = 0; + *val2 = IIO_G_TO_M_S_2(51400); /* 51.4 mg */ return IIO_VAL_INT_PLUS_MICRO; case IIO_CHAN_INFO_OFFSET: - *val = 25; + *val = 25000 / 244 - 0x133; /* 25 C = 0x133 */ return IIO_VAL_INT; case IIO_CHAN_INFO_CALIBBIAS: bits = 10; -- cgit v0.10.2 From 7e72a54c08c3a3d296c11139774e13cc80424060 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 15 Oct 2012 10:35:00 +0100 Subject: staging:iio: Fix adis16260 channel offsets and scales Most of the channel offsets and scales in the adis16260 are incorrect: * Temperature scale is off by a factor of 1000 * Voltage scale is off by a factor of 1000 * Temperature offset is completely wrong This patch fixes these issues. Also use the IIO_DEGREE_TO_RAD for the angle velocity since this makes it much easier to compare it to the value given in the datasheet. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/gyro/adis16260_core.c b/drivers/staging/iio/gyro/adis16260_core.c index 9571c03..aa964a2 100644 --- a/drivers/staging/iio/gyro/adis16260_core.c +++ b/drivers/staging/iio/gyro/adis16260_core.c @@ -498,28 +498,33 @@ static int adis16260_read_raw(struct iio_dev *indio_dev, switch (chan->type) { case IIO_ANGL_VEL: *val = 0; - if (spi_get_device_id(st->us)->driver_data) - *val2 = 320; - else - *val2 = 1278; + if (spi_get_device_id(st->us)->driver_data) { + /* 0.01832 degree / sec */ + *val2 = IIO_DEGREE_TO_RAD(18320); + } else { + /* 0.07326 degree / sec */ + *val2 = IIO_DEGREE_TO_RAD(73260); + } return IIO_VAL_INT_PLUS_MICRO; case IIO_VOLTAGE: - *val = 0; - if (chan->channel == 0) - *val2 = 18315; - else - *val2 = 610500; + if (chan->channel == 0) { + *val = 1; + *val2 = 831500; /* 1.8315 mV */ + } else { + *val = 0; + *val2 = 610500; /* 610.5 uV */ + } return IIO_VAL_INT_PLUS_MICRO; case IIO_TEMP: - *val = 0; - *val2 = 145300; + *val = 145; + *val2 = 300000; /* 0.1453 C */ return IIO_VAL_INT_PLUS_MICRO; default: return -EINVAL; } break; case IIO_CHAN_INFO_OFFSET: - *val = 25; + *val = 250000 / 1453; /* 25 C = 0x00 */ return IIO_VAL_INT; case IIO_CHAN_INFO_CALIBBIAS: switch (chan->type) { -- cgit v0.10.2 From 1cf8c97f94a07e6d6461ae81b62abc2134b52c24 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 15 Oct 2012 10:35:00 +0100 Subject: staging:iio: Fix adis16400 channel offsets and scales Most of the channel offsets and scales in the adis16400 are incorrect: * Voltage scale is off by a factor of 1000 * Temperature scale is off by a factor of 1000 * Temperature offset is completely wrong * Some of the acceleration scales are either completely wrong or have the wrong unit * Some of the angular velocity scale are either completely wrong or have the wrong unit This patch fixes these issues. For consistency it also converts scales which are correct to use the IIO_G_TO_M_S_2 and IIO_DEGREE_TO_RAD macro. This makes it much easier to compare it to the value given in the datasheet. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/imu/adis16400_core.c b/drivers/staging/iio/imu/adis16400_core.c index b302c9b..dccea95 100644 --- a/drivers/staging/iio/imu/adis16400_core.c +++ b/drivers/staging/iio/imu/adis16400_core.c @@ -553,10 +553,13 @@ static int adis16400_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT_PLUS_MICRO; case IIO_VOLTAGE: *val = 0; - if (chan->channel == 0) - *val2 = 2418; - else - *val2 = 806; + if (chan->channel == 0) { + *val = 2; + *val2 = 418000; /* 2.418 mV */ + } else { + *val = 0; + *val2 = 805800; /* 805.8 uV */ + } return IIO_VAL_INT_PLUS_MICRO; case IIO_ACCEL: *val = 0; @@ -564,11 +567,11 @@ static int adis16400_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT_PLUS_MICRO; case IIO_MAGN: *val = 0; - *val2 = 500; + *val2 = 500; /* 0.5 mgauss */ return IIO_VAL_INT_PLUS_MICRO; case IIO_TEMP: - *val = 0; - *val2 = 140000; + *val = 140; /* 0.14 C */ + *val2 = 0; return IIO_VAL_INT_PLUS_MICRO; default: return -EINVAL; @@ -585,10 +588,8 @@ static int adis16400_read_raw(struct iio_dev *indio_dev, *val = val16; return IIO_VAL_INT; case IIO_CHAN_INFO_OFFSET: - /* currently only temperature */ - *val = 198; - *val2 = 160000; - return IIO_VAL_INT_PLUS_MICRO; + *val = 2500 / 14; /* 25 C = 0x00 */ + return IIO_VAL_INT; case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY: mutex_lock(&indio_dev->mlock); /* Need both the number of taps and the sampling frequency */ @@ -1058,7 +1059,7 @@ static struct adis16400_chip_info adis16400_chips[] = { [ADIS16300] = { .channels = adis16300_channels, .num_channels = ARRAY_SIZE(adis16300_channels), - .gyro_scale_micro = 873, + .gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */ .accel_scale_micro = 5884, .default_scan_mask = (1 << ADIS16400_SCAN_SUPPLY) | (1 << ADIS16400_SCAN_GYRO_X) | (1 << ADIS16400_SCAN_ACC_X) | @@ -1070,8 +1071,8 @@ static struct adis16400_chip_info adis16400_chips[] = { [ADIS16334] = { .channels = adis16334_channels, .num_channels = ARRAY_SIZE(adis16334_channels), - .gyro_scale_micro = 873, - .accel_scale_micro = 981, + .gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */ + .accel_scale_micro = IIO_G_TO_M_S_2(1000), /* 1 mg */ .default_scan_mask = (1 << ADIS16400_SCAN_GYRO_X) | (1 << ADIS16400_SCAN_GYRO_Y) | (1 << ADIS16400_SCAN_GYRO_Z) | (1 << ADIS16400_SCAN_ACC_X) | (1 << ADIS16400_SCAN_ACC_Y) | @@ -1080,8 +1081,8 @@ static struct adis16400_chip_info adis16400_chips[] = { [ADIS16350] = { .channels = adis16350_channels, .num_channels = ARRAY_SIZE(adis16350_channels), - .gyro_scale_micro = 872664, - .accel_scale_micro = 24732, + .gyro_scale_micro = IIO_DEGREE_TO_RAD(73260), /* 0.07326 deg/s */ + .accel_scale_micro = IIO_G_TO_M_S_2(2522), /* 0.002522 g */ .default_scan_mask = 0x7FF, .flags = ADIS16400_NO_BURST, }, @@ -1090,8 +1091,8 @@ static struct adis16400_chip_info adis16400_chips[] = { .num_channels = ARRAY_SIZE(adis16350_channels), .flags = ADIS16400_HAS_PROD_ID, .product_id = 0x3FE8, - .gyro_scale_micro = 1279, - .accel_scale_micro = 24732, + .gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */ + .accel_scale_micro = IIO_G_TO_M_S_2(3333), /* 3.333 mg */ .default_scan_mask = 0x7FF, }, [ADIS16362] = { @@ -1099,8 +1100,8 @@ static struct adis16400_chip_info adis16400_chips[] = { .num_channels = ARRAY_SIZE(adis16350_channels), .flags = ADIS16400_HAS_PROD_ID, .product_id = 0x3FEA, - .gyro_scale_micro = 1279, - .accel_scale_micro = 24732, + .gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */ + .accel_scale_micro = IIO_G_TO_M_S_2(333), /* 0.333 mg */ .default_scan_mask = 0x7FF, }, [ADIS16364] = { @@ -1108,8 +1109,8 @@ static struct adis16400_chip_info adis16400_chips[] = { .num_channels = ARRAY_SIZE(adis16350_channels), .flags = ADIS16400_HAS_PROD_ID, .product_id = 0x3FEC, - .gyro_scale_micro = 1279, - .accel_scale_micro = 24732, + .gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */ + .accel_scale_micro = IIO_G_TO_M_S_2(1000), /* 1 mg */ .default_scan_mask = 0x7FF, }, [ADIS16365] = { @@ -1117,8 +1118,8 @@ static struct adis16400_chip_info adis16400_chips[] = { .num_channels = ARRAY_SIZE(adis16350_channels), .flags = ADIS16400_HAS_PROD_ID, .product_id = 0x3FED, - .gyro_scale_micro = 1279, - .accel_scale_micro = 24732, + .gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */ + .accel_scale_micro = IIO_G_TO_M_S_2(1000), /* 1 mg */ .default_scan_mask = 0x7FF, }, [ADIS16400] = { @@ -1126,8 +1127,8 @@ static struct adis16400_chip_info adis16400_chips[] = { .num_channels = ARRAY_SIZE(adis16400_channels), .flags = ADIS16400_HAS_PROD_ID, .product_id = 0x4015, - .gyro_scale_micro = 873, - .accel_scale_micro = 32656, + .gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */ + .accel_scale_micro = IIO_G_TO_M_S_2(3333), /* 3.333 mg */ .default_scan_mask = 0xFFF, } }; -- cgit v0.10.2 From 760ebc0d2af519dde91e39d22927d2be1bc57190 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 15 Oct 2012 10:35:00 +0100 Subject: staging:iio:adis16400: Report correct temperature scale and offset Temperature scale and offset differ between the different devices supported by this driver. Right now the driver always reports the temperature scale and offset of the adis16400 regardless of which chip variant is used. This patch adds two new attributes to the chip_info struct, one for the temperature scale and one for the temperature offset. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/imu/adis16400.h b/drivers/staging/iio/imu/adis16400.h index d59d7ac..77c601d 100644 --- a/drivers/staging/iio/imu/adis16400.h +++ b/drivers/staging/iio/imu/adis16400.h @@ -139,6 +139,8 @@ struct adis16400_chip_info { const long flags; unsigned int gyro_scale_micro; unsigned int accel_scale_micro; + int temp_scale_nano; + int temp_offset; unsigned long default_scan_mask; }; diff --git a/drivers/staging/iio/imu/adis16400_core.c b/drivers/staging/iio/imu/adis16400_core.c index dccea95..eaed87f 100644 --- a/drivers/staging/iio/imu/adis16400_core.c +++ b/drivers/staging/iio/imu/adis16400_core.c @@ -570,8 +570,8 @@ static int adis16400_read_raw(struct iio_dev *indio_dev, *val2 = 500; /* 0.5 mgauss */ return IIO_VAL_INT_PLUS_MICRO; case IIO_TEMP: - *val = 140; /* 0.14 C */ - *val2 = 0; + *val = st->variant->temp_scale_nano / 1000000; + *val2 = (st->variant->temp_scale_nano % 1000000); return IIO_VAL_INT_PLUS_MICRO; default: return -EINVAL; @@ -588,7 +588,8 @@ static int adis16400_read_raw(struct iio_dev *indio_dev, *val = val16; return IIO_VAL_INT; case IIO_CHAN_INFO_OFFSET: - *val = 2500 / 14; /* 25 C = 0x00 */ + /* currently only temperature */ + *val = st->variant->temp_offset; return IIO_VAL_INT; case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY: mutex_lock(&indio_dev->mlock); @@ -1061,6 +1062,8 @@ static struct adis16400_chip_info adis16400_chips[] = { .num_channels = ARRAY_SIZE(adis16300_channels), .gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */ .accel_scale_micro = 5884, + .temp_scale_nano = 140000000, /* 0.14 C */ + .temp_offset = 25000000 / 140000, /* 25 C = 0x00 */ .default_scan_mask = (1 << ADIS16400_SCAN_SUPPLY) | (1 << ADIS16400_SCAN_GYRO_X) | (1 << ADIS16400_SCAN_ACC_X) | (1 << ADIS16400_SCAN_ACC_Y) | (1 << ADIS16400_SCAN_ACC_Z) | @@ -1073,6 +1076,8 @@ static struct adis16400_chip_info adis16400_chips[] = { .num_channels = ARRAY_SIZE(adis16334_channels), .gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */ .accel_scale_micro = IIO_G_TO_M_S_2(1000), /* 1 mg */ + .temp_scale_nano = 67850000, /* 0.06785 C */ + .temp_offset = 25000000 / 67850, /* 25 C = 0x00 */ .default_scan_mask = (1 << ADIS16400_SCAN_GYRO_X) | (1 << ADIS16400_SCAN_GYRO_Y) | (1 << ADIS16400_SCAN_GYRO_Z) | (1 << ADIS16400_SCAN_ACC_X) | (1 << ADIS16400_SCAN_ACC_Y) | @@ -1083,6 +1088,8 @@ static struct adis16400_chip_info adis16400_chips[] = { .num_channels = ARRAY_SIZE(adis16350_channels), .gyro_scale_micro = IIO_DEGREE_TO_RAD(73260), /* 0.07326 deg/s */ .accel_scale_micro = IIO_G_TO_M_S_2(2522), /* 0.002522 g */ + .temp_scale_nano = 145300000, /* 0.1453 C */ + .temp_offset = 25000000 / 145300, /* 25 C = 0x00 */ .default_scan_mask = 0x7FF, .flags = ADIS16400_NO_BURST, }, @@ -1093,6 +1100,8 @@ static struct adis16400_chip_info adis16400_chips[] = { .product_id = 0x3FE8, .gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */ .accel_scale_micro = IIO_G_TO_M_S_2(3333), /* 3.333 mg */ + .temp_scale_nano = 136000000, /* 0.136 C */ + .temp_offset = 25000000 / 136000, /* 25 C = 0x00 */ .default_scan_mask = 0x7FF, }, [ADIS16362] = { @@ -1102,6 +1111,8 @@ static struct adis16400_chip_info adis16400_chips[] = { .product_id = 0x3FEA, .gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */ .accel_scale_micro = IIO_G_TO_M_S_2(333), /* 0.333 mg */ + .temp_scale_nano = 136000000, /* 0.136 C */ + .temp_offset = 25000000 / 136000, /* 25 C = 0x00 */ .default_scan_mask = 0x7FF, }, [ADIS16364] = { @@ -1111,6 +1122,8 @@ static struct adis16400_chip_info adis16400_chips[] = { .product_id = 0x3FEC, .gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */ .accel_scale_micro = IIO_G_TO_M_S_2(1000), /* 1 mg */ + .temp_scale_nano = 136000000, /* 0.136 C */ + .temp_offset = 25000000 / 136000, /* 25 C = 0x00 */ .default_scan_mask = 0x7FF, }, [ADIS16365] = { @@ -1120,6 +1133,8 @@ static struct adis16400_chip_info adis16400_chips[] = { .product_id = 0x3FED, .gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */ .accel_scale_micro = IIO_G_TO_M_S_2(1000), /* 1 mg */ + .temp_scale_nano = 136000000, /* 0.136 C */ + .temp_offset = 25000000 / 136000, /* 25 C = 0x00 */ .default_scan_mask = 0x7FF, }, [ADIS16400] = { @@ -1130,6 +1145,8 @@ static struct adis16400_chip_info adis16400_chips[] = { .gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */ .accel_scale_micro = IIO_G_TO_M_S_2(3333), /* 3.333 mg */ .default_scan_mask = 0xFFF, + .temp_scale_nano = 140000000, /* 0.14 C */ + .temp_offset = 25000000 / 140000, /* 25 C = 0x00 */ } }; -- cgit v0.10.2 From 2e132e4692d627fd8aa0a1833e647d517531cb99 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 15 Oct 2012 10:35:00 +0100 Subject: staging:iio:adis16400: Fixup adis16336 temp channel attributes The temperature channel has a calibbias attribute which it should not have, but the offset attribute is missing. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/imu/adis16400_core.c b/drivers/staging/iio/imu/adis16400_core.c index eaed87f..3144a7b 100644 --- a/drivers/staging/iio/imu/adis16400_core.c +++ b/drivers/staging/iio/imu/adis16400_core.c @@ -1037,7 +1037,7 @@ static const struct iio_chan_spec adis16334_channels[] = { .indexed = 1, .channel = 0, .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | - IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT | + IIO_CHAN_INFO_OFFSET_SEPARATE_BIT | IIO_CHAN_INFO_SCALE_SHARED_BIT, .address = temp0, .scan_index = ADIS16400_SCAN_TEMP, -- cgit v0.10.2 From 98f9c3c137cea016c57c9fd60b3caf88eb34e4cd Mon Sep 17 00:00:00 2001 From: Andreas Larsson Date: Wed, 17 Oct 2012 09:36:00 +0100 Subject: iio: Remove duplicates for light/ in Kconfig and Makefile Signed-off-by: Andreas Larsson Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig index 6e3f143..fc937ac 100644 --- a/drivers/iio/Kconfig +++ b/drivers/iio/Kconfig @@ -62,7 +62,6 @@ source "drivers/iio/frequency/Kconfig" source "drivers/iio/dac/Kconfig" source "drivers/iio/common/Kconfig" source "drivers/iio/gyro/Kconfig" -source "drivers/iio/light/Kconfig" source "drivers/iio/magnetometer/Kconfig" endif # IIO diff --git a/drivers/iio/Makefile b/drivers/iio/Makefile index f7fa3c0..761f2b6 100644 --- a/drivers/iio/Makefile +++ b/drivers/iio/Makefile @@ -18,5 +18,4 @@ obj-y += frequency/ obj-y += dac/ obj-y += common/ obj-y += gyro/ -obj-y += light/ obj-y += magnetometer/ -- cgit v0.10.2 From 84f98fdf7865fbd35b312eb39ea91e5618c514c7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Stef=C3=A1n=20Freyr?= Date: Fri, 19 Oct 2012 22:46:00 +0200 Subject: ALSA: hda - add dock support for Thinkpad T430 I have a Lenovo ThinkPad T430 and an UltraBase Series 3 docking station. Without this patch, if I plug my headphones into the jack on the computer, everything works fine. The computer speakers mute and the audio is played in the headphones. However, if I plug into the docking station headphone jack the computer speakers are muted but there is no audio in the headphones. Addresses https://bugs.launchpad.net/bugs/1060372 Signed-off-by: Joseph Salisbury Cc: stable@vger.kernel.org Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 48d9d60..2c62edd 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -6188,6 +6188,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x17aa, 0x21e9, "Thinkpad Edge 15", ALC269_FIXUP_SKU_IGNORE), SND_PCI_QUIRK(0x17aa, 0x21f6, "Thinkpad T530", ALC269_FIXUP_LENOVO_DOCK), SND_PCI_QUIRK(0x17aa, 0x21fa, "Thinkpad X230", ALC269_FIXUP_LENOVO_DOCK), + SND_PCI_QUIRK(0x17aa, 0x21f3, "Thinkpad T430", ALC269_FIXUP_LENOVO_DOCK), SND_PCI_QUIRK(0x17aa, 0x21fb, "Thinkpad T430s", ALC269_FIXUP_LENOVO_DOCK), SND_PCI_QUIRK(0x17aa, 0x2203, "Thinkpad X230 Tablet", ALC269_FIXUP_LENOVO_DOCK), SND_PCI_QUIRK(0x17aa, 0x3bf8, "Quanta FL1", ALC269_FIXUP_PCM_44K), -- cgit v0.10.2 From 9bb71308b8133d643648776243e4d5599b1c193d Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 18 Oct 2012 17:52:07 -0700 Subject: Revert "cgroup: Drop task_lock(parent) on cgroup_fork()" This reverts commit 7e381b0eb1e1a9805c37335562e8dc02e7d7848c. The commit incorrectly assumed that fork path always performed threadgroup_change_begin/end() and depended on that for synchronization against task exit and cgroup migration paths instead of explicitly grabbing task_lock(). threadgroup_change is not locked when forking a new process (as opposed to a new thread in the same process) and even if it were it wouldn't be effective as different processes use different threadgroup locks. Revert the incorrect optimization. Signed-off-by: Tejun Heo LKML-Reference: <20121008020000.GB2575@localhost> Acked-by: Li Zefan Bitterly-Acked-by: Frederic Weisbecker Cc: stable@vger.kernel.org diff --git a/kernel/cgroup.c b/kernel/cgroup.c index d1739fc..75aec12 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -4814,31 +4814,20 @@ static const struct file_operations proc_cgroupstats_operations = { * * A pointer to the shared css_set was automatically copied in * fork.c by dup_task_struct(). However, we ignore that copy, since - * it was not made under the protection of RCU, cgroup_mutex or - * threadgroup_change_begin(), so it might no longer be a valid - * cgroup pointer. cgroup_attach_task() might have already changed - * current->cgroups, allowing the previously referenced cgroup - * group to be removed and freed. - * - * Outside the pointer validity we also need to process the css_set - * inheritance between threadgoup_change_begin() and - * threadgoup_change_end(), this way there is no leak in any process - * wide migration performed by cgroup_attach_proc() that could otherwise - * miss a thread because it is too early or too late in the fork stage. + * it was not made under the protection of RCU or cgroup_mutex, so + * might no longer be a valid cgroup pointer. cgroup_attach_task() might + * have already changed current->cgroups, allowing the previously + * referenced cgroup group to be removed and freed. * * At the point that cgroup_fork() is called, 'current' is the parent * task, and the passed argument 'child' points to the child task. */ void cgroup_fork(struct task_struct *child) { - /* - * We don't need to task_lock() current because current->cgroups - * can't be changed concurrently here. The parent obviously hasn't - * exited and called cgroup_exit(), and we are synchronized against - * cgroup migration through threadgroup_change_begin(). - */ + task_lock(current); child->cgroups = current->cgroups; get_css_set(child->cgroups); + task_unlock(current); INIT_LIST_HEAD(&child->cg_list); } -- cgit v0.10.2 From d87838321124061f6c935069d97f37010fa417e6 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 18 Oct 2012 17:40:30 -0700 Subject: Revert "cgroup: Remove task_lock() from cgroup_post_fork()" This reverts commit 7e3aa30ac8c904a706518b725c451bb486daaae9. The commit incorrectly assumed that fork path always performed threadgroup_change_begin/end() and depended on that for synchronization against task exit and cgroup migration paths instead of explicitly grabbing task_lock(). threadgroup_change is not locked when forking a new process (as opposed to a new thread in the same process) and even if it were it wouldn't be effective as different processes use different threadgroup locks. Revert the incorrect optimization. Signed-off-by: Tejun Heo LKML-Reference: <20121008020000.GB2575@localhost> Acked-by: Li Zefan Cc: Frederic Weisbecker Cc: stable@vger.kernel.org diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 75aec12..f24f724 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -4883,19 +4883,10 @@ void cgroup_post_fork(struct task_struct *child) */ if (use_task_css_set_links) { write_lock(&css_set_lock); - if (list_empty(&child->cg_list)) { - /* - * It's safe to use child->cgroups without task_lock() - * here because we are protected through - * threadgroup_change_begin() against concurrent - * css_set change in cgroup_task_migrate(). Also - * the task can't exit at that point until - * wake_up_new_task() is called, so we are protected - * against cgroup_exit() setting child->cgroup to - * init_css_set. - */ + task_lock(child); + if (list_empty(&child->cg_list)) list_add(&child->cg_list, &child->cgroups->tasks); - } + task_unlock(child); write_unlock(&css_set_lock); } } -- cgit v0.10.2 From 41285a98f8f052b59f01bbbcb0064e5e41b0ca2d Mon Sep 17 00:00:00 2001 From: Adrian Knoth Date: Fri, 19 Oct 2012 17:42:22 +0200 Subject: ALSA: hdspm - Allow DDS/Varispeed to be set from userspace MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The DDS value is the actual physical sample rate. We set it indirectly when selecting 44100, 48000 and so on via snd_hdspm_hw_params or hdspm_set_clock_source. This commit now allows the DDS value to be altered at runtime, thus speeding up or slowing down the physical sample rate. This is required for MADI's varispeed that allows for ±12.5% speed adjustment from the "selected" rate (32kHz, 44100kHz, 48kHz and so on). Signed-off-by: Adrian Knoth Signed-off-by: Takashi Iwai diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index b12308b..742bd5e 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -2003,8 +2003,10 @@ static int hdspm_get_system_sample_rate(struct hdspm *hdspm) { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ .name = xname, \ .index = xindex, \ - .access = SNDRV_CTL_ELEM_ACCESS_READ, \ + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |\ + SNDRV_CTL_ELEM_ACCESS_VOLATILE, \ .info = snd_hdspm_info_system_sample_rate, \ + .put = snd_hdspm_put_system_sample_rate, \ .get = snd_hdspm_get_system_sample_rate \ } @@ -2030,6 +2032,16 @@ static int snd_hdspm_get_system_sample_rate(struct snd_kcontrol *kcontrol, return 0; } +static int snd_hdspm_put_system_sample_rate(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value * + ucontrol) +{ + struct hdspm *hdspm = snd_kcontrol_chip(kcontrol); + + hdspm_set_dds_value(hdspm, ucontrol->value.enumerated.item[0]); + return 0; +} + /** * Returns the WordClock sample rate class for the given card. -- cgit v0.10.2 From 21a164df0c1c2e72d4bb78b2f67dc75a1c9d14fb Mon Sep 17 00:00:00 2001 From: Adrian Knoth Date: Fri, 19 Oct 2012 17:42:23 +0200 Subject: ALSA: hdspm - Report external rate in slave mode on PCI MADI As a follow-up to a97bda7d29d02a2e9c6609d0947b15e55f5200e5, report the external sample rate as system_sample_rate when in slave mode. For PCIe MADI cards, the DDS value automatically contains the external sample rate, but the PCI version needs this manual workaround. Signed-off-by: Adrian Knoth Signed-off-by: Takashi Iwai diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index 742bd5e..1131a8a 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -971,6 +971,7 @@ static inline void snd_hdspm_initialize_midi_flush(struct hdspm *hdspm); static int hdspm_update_simple_mixer_controls(struct hdspm *hdspm); static int hdspm_autosync_ref(struct hdspm *hdspm); static int snd_hdspm_set_defaults(struct hdspm *hdspm); +static int hdspm_system_clock_mode(struct hdspm *hdspm); static void hdspm_set_sgbuf(struct hdspm *hdspm, struct snd_pcm_substream *substream, unsigned int reg, int channels); @@ -1989,10 +1990,14 @@ static int hdspm_get_system_sample_rate(struct hdspm *hdspm) rate = hdspm_calc_dds_value(hdspm, period); if (rate > 207000) { - /* Unreasonable high sample rate as seen on PCI MADI cards. - * Use the cached value instead. - */ - rate = hdspm->system_sample_rate; + /* Unreasonable high sample rate as seen on PCI MADI cards. */ + if (0 == hdspm_system_clock_mode(hdspm)) { + /* master mode, return internal sample rate */ + rate = hdspm->system_sample_rate; + } else { + /* slave mode, return external sample rate */ + rate = hdspm_external_sample_rate(hdspm); + } } return rate; -- cgit v0.10.2 From fba30fd342beda8e7908f214d9e7f8a62dcdc57d Mon Sep 17 00:00:00 2001 From: Adrian Knoth Date: Fri, 19 Oct 2012 17:42:24 +0200 Subject: ALSA: hdspm - Fix sync check reporting on all RME HDSPM cards Due to missing breaks and the resulting fall-through, card subtype selection was effectively missing, thus causing the wrong sync check functions to be called. Signed-off-by: Adrian Knoth Signed-off-by: Takashi Iwai diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index 1131a8a..81d83fa 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -3959,6 +3959,7 @@ static int snd_hdspm_get_sync_check(struct snd_kcontrol *kcontrol, default: val = hdspm_s1_sync_check(hdspm, ucontrol->id.index-1); } + break; case AIO: switch (kcontrol->private_value) { @@ -3971,6 +3972,7 @@ static int snd_hdspm_get_sync_check(struct snd_kcontrol *kcontrol, default: val = hdspm_s1_sync_check(hdspm, ucontrol->id.index-1); } + break; case MADI: switch (kcontrol->private_value) { @@ -3983,6 +3985,7 @@ static int snd_hdspm_get_sync_check(struct snd_kcontrol *kcontrol, case 3: /* SYNC_IN */ val = hdspm_sync_in_sync_check(hdspm); break; } + break; case MADIface: val = hdspm_madi_sync_check(hdspm); /* MADI */ @@ -4000,6 +4003,7 @@ static int snd_hdspm_get_sync_check(struct snd_kcontrol *kcontrol, val = hdspm_aes_sync_check(hdspm, kcontrol->private_value-1); } + break; } -- cgit v0.10.2 From d681deaa74748ce1d4b1a862438c955b70f46690 Mon Sep 17 00:00:00 2001 From: Adrian Knoth Date: Fri, 19 Oct 2012 17:42:25 +0200 Subject: ALSA: hdspm - Fix reported autosync_sample_rate Missing breaks lead to a fall-through, thus causing the wrong autosync_sample_rate to be reported. Signed-off-by: Adrian Knoth Signed-off-by: Takashi Iwai diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index 81d83fa..976e3a6 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -2180,6 +2180,7 @@ static int snd_hdspm_get_autosync_sample_rate(struct snd_kcontrol *kcontrol, hdspm_get_s1_sample_rate(hdspm, kcontrol->private_value-1); } + break; case AIO: switch (kcontrol->private_value) { @@ -2200,6 +2201,7 @@ static int snd_hdspm_get_autosync_sample_rate(struct snd_kcontrol *kcontrol, hdspm_get_s1_sample_rate(hdspm, ucontrol->id.index-1); } + break; case AES32: @@ -2221,8 +2223,8 @@ static int snd_hdspm_get_autosync_sample_rate(struct snd_kcontrol *kcontrol, hdspm_get_s1_sample_rate(hdspm, kcontrol->private_value-1); break; - } + break; default: break; } -- cgit v0.10.2 From b8812c55c5e59596bbf4b1d3e5b4b3ef50a89cad Mon Sep 17 00:00:00 2001 From: Adrian Knoth Date: Fri, 19 Oct 2012 17:42:26 +0200 Subject: ALSA: hdspm - Also report autosync_sample_rate on MADI and MADIface MADI and MADIface used to report the autosync_sample_rate. This functionality was lost in commit 0dca1793063c28dde8f6c49c9c72203fe5cb6efc, this commit now adds it back. Signed-off-by: Adrian Knoth Signed-off-by: Takashi Iwai diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index 976e3a6..5f243ae 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -2225,6 +2225,21 @@ static int snd_hdspm_get_autosync_sample_rate(struct snd_kcontrol *kcontrol, break; } break; + + case MADI: + case MADIface: + { + int rate = hdspm_external_sample_rate(hdspm); + int i, selected_rate = 0; + for (i = 1; i < 10; i++) + if (HDSPM_bit2freq(i) == rate) { + selected_rate = i; + break; + } + ucontrol->value.enumerated.item[0] = selected_rate; + } + break; + default: break; } @@ -4450,6 +4465,7 @@ static struct snd_kcontrol_new snd_hdspm_controls_madi[] = { HDSPM_PREF_SYNC_REF("Preferred Sync Reference", 0), HDSPM_AUTOSYNC_REF("AutoSync Reference", 0), HDSPM_SYSTEM_SAMPLE_RATE("System Sample Rate", 0), + HDSPM_AUTOSYNC_SAMPLE_RATE("External Rate", 0), HDSPM_SYNC_CHECK("WC SyncCheck", 0), HDSPM_SYNC_CHECK("MADI SyncCheck", 1), HDSPM_SYNC_CHECK("TCO SyncCHeck", 2), -- cgit v0.10.2 From 2e0452f544758d798ba76016c00783f654b43fe3 Mon Sep 17 00:00:00 2001 From: Adrian Knoth Date: Fri, 19 Oct 2012 17:42:27 +0200 Subject: ALSA: hdspm - Fix sync_in reporting on RME MADI cards In contrast to AES32, MADI uses the first status register to report the sync_in status. Signed-off-by: Adrian Knoth Signed-off-by: Takashi Iwai diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index 5f243ae..5d70efe 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -3885,6 +3885,11 @@ static int hdspm_sync_in_sync_check(struct hdspm *hdspm) break; case MADI: + status = hdspm_read(hdspm, HDSPM_statusRegister); + lock = (status & HDSPM_syncInLock) ? 1 : 0; + sync = (status & HDSPM_syncInSync) ? 1 : 0; + break; + case AES32: status = hdspm_read(hdspm, HDSPM_statusRegister2); lock = (status & HDSPM_syncInLock) ? 1 : 0; -- cgit v0.10.2 From 9a215f47da029b04bf92f1f68abf978211155ceb Mon Sep 17 00:00:00 2001 From: Adrian Knoth Date: Fri, 19 Oct 2012 17:42:28 +0200 Subject: ALSA: hdspm - Fix sync_in detection on AES/AES32 According to the documentation, AES32 cards use a different bit position for reporting the sync_in status. Signed-off-by: Adrian Knoth Signed-off-by: Takashi Iwai diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index 5d70efe..b8b15ee 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -3892,8 +3892,8 @@ static int hdspm_sync_in_sync_check(struct hdspm *hdspm) case AES32: status = hdspm_read(hdspm, HDSPM_statusRegister2); - lock = (status & HDSPM_syncInLock) ? 1 : 0; - sync = (status & HDSPM_syncInSync) ? 1 : 0; + lock = (status & 0x100000) ? 1 : 0; + sync = (status & 0x200000) ? 1 : 0; break; case MADIface: -- cgit v0.10.2 From 930f4ff078b9c4484b0e9383fc17a04d4f9253bf Mon Sep 17 00:00:00 2001 From: Adrian Knoth Date: Fri, 19 Oct 2012 17:42:29 +0200 Subject: ALSA: hdspm - Fix typo in kcontrol element on RME MADI cards Signed-off-by: Adrian Knoth Signed-off-by: Takashi Iwai diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index b8b15ee..0965804 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -4473,7 +4473,7 @@ static struct snd_kcontrol_new snd_hdspm_controls_madi[] = { HDSPM_AUTOSYNC_SAMPLE_RATE("External Rate", 0), HDSPM_SYNC_CHECK("WC SyncCheck", 0), HDSPM_SYNC_CHECK("MADI SyncCheck", 1), - HDSPM_SYNC_CHECK("TCO SyncCHeck", 2), + HDSPM_SYNC_CHECK("TCO SyncCheck", 2), HDSPM_SYNC_CHECK("SYNC IN SyncCheck", 3), HDSPM_LINE_OUT("Line Out", 0), HDSPM_TX_64("TX 64 channels mode", 0), -- cgit v0.10.2 From f27a64f9973ff932ece576793c195de60c1c6c9b Mon Sep 17 00:00:00 2001 From: Adrian Knoth Date: Fri, 19 Oct 2012 17:42:30 +0200 Subject: ALSA: hdspm - Fix coding style in CTL_ELEM macros checkpatch.pl discourages the use of spaces at the beginning of lines. Some of the CTL_ELEM defines were not properly indented. This patch replaces the leading spaces by tabs. No functionality is changed, the commit is purely cosmetic. Signed-off-by: Adrian Knoth Signed-off-by: Takashi Iwai diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index 0965804..f1cd1e3 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -2005,14 +2005,14 @@ static int hdspm_get_system_sample_rate(struct hdspm *hdspm) #define HDSPM_SYSTEM_SAMPLE_RATE(xname, xindex) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ - .name = xname, \ - .index = xindex, \ - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |\ - SNDRV_CTL_ELEM_ACCESS_VOLATILE, \ - .info = snd_hdspm_info_system_sample_rate, \ - .put = snd_hdspm_put_system_sample_rate, \ - .get = snd_hdspm_get_system_sample_rate \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = xname, \ + .index = xindex, \ + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |\ + SNDRV_CTL_ELEM_ACCESS_VOLATILE, \ + .info = snd_hdspm_info_system_sample_rate, \ + .put = snd_hdspm_put_system_sample_rate, \ + .get = snd_hdspm_get_system_sample_rate \ } static int snd_hdspm_info_system_sample_rate(struct snd_kcontrol *kcontrol, @@ -2464,7 +2464,7 @@ static int snd_hdspm_put_clock_source(struct snd_kcontrol *kcontrol, #define HDSPM_PREF_SYNC_REF(xname, xindex) \ -{.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ .name = xname, \ .index = xindex, \ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |\ @@ -2800,12 +2800,12 @@ static int snd_hdspm_put_pref_sync_ref(struct snd_kcontrol *kcontrol, #define HDSPM_AUTOSYNC_REF(xname, xindex) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ - .name = xname, \ - .index = xindex, \ - .access = SNDRV_CTL_ELEM_ACCESS_READ, \ - .info = snd_hdspm_info_autosync_ref, \ - .get = snd_hdspm_get_autosync_ref, \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = xname, \ + .index = xindex, \ + .access = SNDRV_CTL_ELEM_ACCESS_READ, \ + .info = snd_hdspm_info_autosync_ref, \ + .get = snd_hdspm_get_autosync_ref, \ } static int hdspm_autosync_ref(struct hdspm *hdspm) @@ -2889,12 +2889,12 @@ static int snd_hdspm_get_autosync_ref(struct snd_kcontrol *kcontrol, #define HDSPM_LINE_OUT(xname, xindex) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ - .name = xname, \ - .index = xindex, \ - .info = snd_hdspm_info_line_out, \ - .get = snd_hdspm_get_line_out, \ - .put = snd_hdspm_put_line_out \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = xname, \ + .index = xindex, \ + .info = snd_hdspm_info_line_out, \ + .get = snd_hdspm_get_line_out, \ + .put = snd_hdspm_put_line_out \ } static int hdspm_line_out(struct hdspm * hdspm) @@ -2946,12 +2946,12 @@ static int snd_hdspm_put_line_out(struct snd_kcontrol *kcontrol, #define HDSPM_TX_64(xname, xindex) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ - .name = xname, \ - .index = xindex, \ - .info = snd_hdspm_info_tx_64, \ - .get = snd_hdspm_get_tx_64, \ - .put = snd_hdspm_put_tx_64 \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = xname, \ + .index = xindex, \ + .info = snd_hdspm_info_tx_64, \ + .get = snd_hdspm_get_tx_64, \ + .put = snd_hdspm_put_tx_64 \ } static int hdspm_tx_64(struct hdspm * hdspm) @@ -3002,12 +3002,12 @@ static int snd_hdspm_put_tx_64(struct snd_kcontrol *kcontrol, #define HDSPM_C_TMS(xname, xindex) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ - .name = xname, \ - .index = xindex, \ - .info = snd_hdspm_info_c_tms, \ - .get = snd_hdspm_get_c_tms, \ - .put = snd_hdspm_put_c_tms \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = xname, \ + .index = xindex, \ + .info = snd_hdspm_info_c_tms, \ + .get = snd_hdspm_get_c_tms, \ + .put = snd_hdspm_put_c_tms \ } static int hdspm_c_tms(struct hdspm * hdspm) @@ -3058,12 +3058,12 @@ static int snd_hdspm_put_c_tms(struct snd_kcontrol *kcontrol, #define HDSPM_SAFE_MODE(xname, xindex) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ - .name = xname, \ - .index = xindex, \ - .info = snd_hdspm_info_safe_mode, \ - .get = snd_hdspm_get_safe_mode, \ - .put = snd_hdspm_put_safe_mode \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = xname, \ + .index = xindex, \ + .info = snd_hdspm_info_safe_mode, \ + .get = snd_hdspm_get_safe_mode, \ + .put = snd_hdspm_put_safe_mode \ } static int hdspm_safe_mode(struct hdspm * hdspm) @@ -3114,12 +3114,12 @@ static int snd_hdspm_put_safe_mode(struct snd_kcontrol *kcontrol, #define HDSPM_EMPHASIS(xname, xindex) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ - .name = xname, \ - .index = xindex, \ - .info = snd_hdspm_info_emphasis, \ - .get = snd_hdspm_get_emphasis, \ - .put = snd_hdspm_put_emphasis \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = xname, \ + .index = xindex, \ + .info = snd_hdspm_info_emphasis, \ + .get = snd_hdspm_get_emphasis, \ + .put = snd_hdspm_put_emphasis \ } static int hdspm_emphasis(struct hdspm * hdspm) @@ -3170,12 +3170,12 @@ static int snd_hdspm_put_emphasis(struct snd_kcontrol *kcontrol, #define HDSPM_DOLBY(xname, xindex) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ - .name = xname, \ - .index = xindex, \ - .info = snd_hdspm_info_dolby, \ - .get = snd_hdspm_get_dolby, \ - .put = snd_hdspm_put_dolby \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = xname, \ + .index = xindex, \ + .info = snd_hdspm_info_dolby, \ + .get = snd_hdspm_get_dolby, \ + .put = snd_hdspm_put_dolby \ } static int hdspm_dolby(struct hdspm * hdspm) @@ -3226,12 +3226,12 @@ static int snd_hdspm_put_dolby(struct snd_kcontrol *kcontrol, #define HDSPM_PROFESSIONAL(xname, xindex) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ - .name = xname, \ - .index = xindex, \ - .info = snd_hdspm_info_professional, \ - .get = snd_hdspm_get_professional, \ - .put = snd_hdspm_put_professional \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = xname, \ + .index = xindex, \ + .info = snd_hdspm_info_professional, \ + .get = snd_hdspm_get_professional, \ + .put = snd_hdspm_put_professional \ } static int hdspm_professional(struct hdspm * hdspm) @@ -3281,12 +3281,12 @@ static int snd_hdspm_put_professional(struct snd_kcontrol *kcontrol, } #define HDSPM_INPUT_SELECT(xname, xindex) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ - .name = xname, \ - .index = xindex, \ - .info = snd_hdspm_info_input_select, \ - .get = snd_hdspm_get_input_select, \ - .put = snd_hdspm_put_input_select \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = xname, \ + .index = xindex, \ + .info = snd_hdspm_info_input_select, \ + .get = snd_hdspm_get_input_select, \ + .put = snd_hdspm_put_input_select \ } static int hdspm_input_select(struct hdspm * hdspm) @@ -3353,12 +3353,12 @@ static int snd_hdspm_put_input_select(struct snd_kcontrol *kcontrol, #define HDSPM_DS_WIRE(xname, xindex) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ - .name = xname, \ - .index = xindex, \ - .info = snd_hdspm_info_ds_wire, \ - .get = snd_hdspm_get_ds_wire, \ - .put = snd_hdspm_put_ds_wire \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = xname, \ + .index = xindex, \ + .info = snd_hdspm_info_ds_wire, \ + .get = snd_hdspm_get_ds_wire, \ + .put = snd_hdspm_put_ds_wire \ } static int hdspm_ds_wire(struct hdspm * hdspm) @@ -3425,12 +3425,12 @@ static int snd_hdspm_put_ds_wire(struct snd_kcontrol *kcontrol, #define HDSPM_QS_WIRE(xname, xindex) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ - .name = xname, \ - .index = xindex, \ - .info = snd_hdspm_info_qs_wire, \ - .get = snd_hdspm_get_qs_wire, \ - .put = snd_hdspm_put_qs_wire \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = xname, \ + .index = xindex, \ + .info = snd_hdspm_info_qs_wire, \ + .get = snd_hdspm_get_qs_wire, \ + .put = snd_hdspm_put_qs_wire \ } static int hdspm_qs_wire(struct hdspm * hdspm) @@ -3597,15 +3597,15 @@ static int snd_hdspm_put_madi_speedmode(struct snd_kcontrol *kcontrol, } #define HDSPM_MIXER(xname, xindex) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_HWDEP, \ - .name = xname, \ - .index = xindex, \ - .device = 0, \ - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \ - SNDRV_CTL_ELEM_ACCESS_VOLATILE, \ - .info = snd_hdspm_info_mixer, \ - .get = snd_hdspm_get_mixer, \ - .put = snd_hdspm_put_mixer \ +{ .iface = SNDRV_CTL_ELEM_IFACE_HWDEP, \ + .name = xname, \ + .index = xindex, \ + .device = 0, \ + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \ + SNDRV_CTL_ELEM_ACCESS_VOLATILE, \ + .info = snd_hdspm_info_mixer, \ + .get = snd_hdspm_get_mixer, \ + .put = snd_hdspm_put_mixer \ } static int snd_hdspm_info_mixer(struct snd_kcontrol *kcontrol, @@ -3704,12 +3704,12 @@ static int snd_hdspm_put_mixer(struct snd_kcontrol *kcontrol, */ #define HDSPM_PLAYBACK_MIXER \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ - .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE | \ - SNDRV_CTL_ELEM_ACCESS_VOLATILE, \ - .info = snd_hdspm_info_playback_mixer, \ - .get = snd_hdspm_get_playback_mixer, \ - .put = snd_hdspm_put_playback_mixer \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE | \ + SNDRV_CTL_ELEM_ACCESS_VOLATILE, \ + .info = snd_hdspm_info_playback_mixer, \ + .get = snd_hdspm_get_playback_mixer, \ + .put = snd_hdspm_put_playback_mixer \ } static int snd_hdspm_info_playback_mixer(struct snd_kcontrol *kcontrol, -- cgit v0.10.2 From cb766404e6b8c566569eb9ada02ea45d28729864 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Sat, 20 Oct 2012 10:55:21 +0200 Subject: ALSA: hda - Fix silent headphone output from Toshiba P200 By some reason, Toshiba laptop doesn't like the EAPD turned up for the headphone pin. Add a fix up code to force to turn down EAPD for NID 0x15. Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=569991 Cc: Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 2c62edd..f7397ad 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -5677,6 +5677,7 @@ static const struct hda_verb alc268_beep_init_verbs[] = { enum { ALC268_FIXUP_INV_DMIC, + ALC268_FIXUP_HP_EAPD, }; static const struct alc_fixup alc268_fixups[] = { @@ -5684,10 +5685,26 @@ static const struct alc_fixup alc268_fixups[] = { .type = ALC_FIXUP_FUNC, .v.func = alc_fixup_inv_dmic_0x12, }, + [ALC268_FIXUP_HP_EAPD] = { + .type = ALC_FIXUP_VERBS, + .v.verbs = (const struct hda_verb[]) { + {0x15, AC_VERB_SET_EAPD_BTLENABLE, 0}, + {} + } + }, }; static const struct alc_model_fixup alc268_fixup_models[] = { {.id = ALC268_FIXUP_INV_DMIC, .name = "inv-dmic"}, + {.id = ALC268_FIXUP_HP_EAPD, .name = "hp-eapd"}, + {} +}; + +static const struct snd_pci_quirk alc268_fixup_tbl[] = { + /* below is codec SSID since multiple Toshiba laptops have the + * same PCI SSID 1179:ff00 + */ + SND_PCI_QUIRK(0x1179, 0xff06, "Toshiba P200", ALC268_FIXUP_HP_EAPD), {} }; @@ -5722,7 +5739,7 @@ static int patch_alc268(struct hda_codec *codec) spec = codec->spec; - alc_pick_fixup(codec, alc268_fixup_models, NULL, alc268_fixups); + alc_pick_fixup(codec, alc268_fixup_models, alc268_fixup_tbl, alc268_fixups); alc_apply_fixup(codec, ALC_FIXUP_ACT_PRE_PROBE); /* automatic parse from the BIOS config */ -- cgit v0.10.2 From a736427fa1103158338839813139b20763c7b13e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 20 Oct 2012 21:39:44 -0400 Subject: missing const in alpha callers of do_mount() Signed-off-by: Al Viro diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c index 9eb0905..ac2ae13 100644 --- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -445,7 +445,7 @@ struct procfs_args { * unhappy with OSF UFS. [CHECKME] */ static int -osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags) +osf_ufs_mount(const char *dirname, struct ufs_args __user *args, int flags) { int retval; struct cdfs_args tmp; @@ -465,7 +465,7 @@ osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags) } static int -osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags) +osf_cdfs_mount(const char *dirname, struct cdfs_args __user *args, int flags) { int retval; struct cdfs_args tmp; @@ -485,7 +485,7 @@ osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags) } static int -osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags) +osf_procfs_mount(const char *dirname, struct procfs_args __user *args, int flags) { struct procfs_args tmp; -- cgit v0.10.2 From edb66893860dbc0631afc2807efdb209a03d57a2 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 21 Oct 2012 12:52:03 +0200 Subject: ALSA: sound/isa/opti9xx/miro.c: eliminate possible double free snd_miro_probe is a static function that is only called twice in the file that defines it. At each call site, its argument is freed using snd_card_free. Thus, there is no need for snd_miro_probe to call snd_card_free on its argument on any of its error exit paths. Because snd_card_free both reads the fields of its argument and kfrees its argments, the results of the second snd_card_free should be unpredictable. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @r@ identifier f,free,a; parameter list[n] ps; type T; expression e; @@ f(ps,T a,...) { ... when any when != a = e if(...) { ... free(a); ... return ...; } ... when any } @@ identifier r.f,r.free; expression x,a; expression list[r.n] xs; @@ * x = f(xs,a,...); if (...) { ... free(a); ... return ...; } // Signed-off-by: Julia Lawall Signed-off-by: Takashi Iwai diff --git a/sound/isa/opti9xx/miro.c b/sound/isa/opti9xx/miro.c index 3d1afb6..4a7ff4e 100644 --- a/sound/isa/opti9xx/miro.c +++ b/sound/isa/opti9xx/miro.c @@ -1286,7 +1286,6 @@ static int __devinit snd_miro_probe(struct snd_card *card) error = snd_card_miro_aci_detect(card, miro); if (error < 0) { - snd_card_free(card); snd_printk(KERN_ERR "unable to detect aci chip\n"); return -ENODEV; } -- cgit v0.10.2 From 61ef3c0bd3ccc9552ea4e54f5003a21ba45ceb44 Mon Sep 17 00:00:00 2001 From: Tomasz Figa Date: Mon, 22 Oct 2012 08:16:44 +0900 Subject: ARM: EXYNOS: Set .smp field of machine descriptor for exynos4-dt This patch adds missing initializer of .smp field of machine descriptor of EXYNOS 4 DT machine. Signed-off-by: Tomasz Figa Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c index e58d786..eadf4b5 100644 --- a/arch/arm/mach-exynos/mach-exynos4-dt.c +++ b/arch/arm/mach-exynos/mach-exynos4-dt.c @@ -99,6 +99,7 @@ static char const *exynos4_dt_compat[] __initdata = { DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)") /* Maintainer: Thomas Abraham */ + .smp = smp_ops(exynos_smp_ops), .init_irq = exynos4_init_irq, .map_io = exynos4_dt_map_io, .handle_irq = gic_handle_irq, -- cgit v0.10.2 From 0be1fecd7ee61b5a6d2b2e94b052b8a070b946ef Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Mon, 22 Oct 2012 10:44:55 +1100 Subject: md faulty: use disk_stack_limits() in: fe86cdce block: do not artificially constrain max_sectors for stacking drivers max_sectors defaults to UINT_MAX. md faulty wasn't using disk_stack_limits(), so inherited this large value as well. This triggered a bug in XFS when stressed over md_faulty, when a very large bio_alloc() failed. That was on an older kernel, and I can't reproduce exactly the same thing upstream, but I think the fix is appropriate in any case. Thanks to Mike Snitzer for pointing out the problem. Signed-off-by: Eric Sandeen Signed-off-by: NeilBrown diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c index 45135f6..5e7dc77 100644 --- a/drivers/md/faulty.c +++ b/drivers/md/faulty.c @@ -315,8 +315,11 @@ static int run(struct mddev *mddev) } conf->nfaults = 0; - rdev_for_each(rdev, mddev) + rdev_for_each(rdev, mddev) { conf->rdev = rdev; + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); + } md_set_array_sectors(mddev, faulty_size(mddev, 0, 0)); mddev->private = conf; -- cgit v0.10.2 From 9a4da2cd99e4edfee1e48c5e2b4928eaefb56006 Mon Sep 17 00:00:00 2001 From: Vipul Pandya Date: Fri, 19 Oct 2012 02:09:53 +0000 Subject: cxgb4: Remove unnecessary #ifdef condition This patch also fixes the build failure caused due to removal of #ifdef CONFIG_CHELSIO_T4_OFFLOAD condition Signed-off-by: Vipul Pandya Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index a4da893..378988b 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@ -251,6 +251,8 @@ struct adapter_params { unsigned char rev; /* chip revision */ unsigned char offload; + unsigned char bypass; + unsigned int ofldq_wr_cred; }; @@ -642,6 +644,23 @@ extern int dbfifo_int_thresh; #define for_each_port(adapter, iter) \ for (iter = 0; iter < (adapter)->params.nports; ++iter) +static inline int is_bypass(struct adapter *adap) +{ + return adap->params.bypass; +} + +static inline int is_bypass_device(int device) +{ + /* this should be set based upon device capabilities */ + switch (device) { + case 0x440b: + case 0x440c: + return 1; + default: + return 0; + } +} + static inline unsigned int core_ticks_per_usec(const struct adapter *adap) { return adap->params.vpd.cclk / 1000; diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index 604f4f8..c1cde11 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -3513,18 +3513,6 @@ static int adap_init0_no_config(struct adapter *adapter, int reset) if (ret < 0) goto bye; -#ifndef CONFIG_CHELSIO_T4_OFFLOAD - /* - * If we're a pure NIC driver then disable all offloading facilities. - * This will allow the firmware to optimize aspects of the hardware - * configuration which will result in improved performance. - */ - caps_cmd.ofldcaps = 0; - caps_cmd.iscsicaps = 0; - caps_cmd.rdmacaps = 0; - caps_cmd.fcoecaps = 0; -#endif - if (caps_cmd.niccaps & htons(FW_CAPS_CONFIG_NIC_VM)) { if (!vf_acls) caps_cmd.niccaps ^= htons(FW_CAPS_CONFIG_NIC_VM); @@ -3745,6 +3733,7 @@ static int adap_init0(struct adapter *adap) u32 v, port_vec; enum dev_state state; u32 params[7], val[7]; + struct fw_caps_config_cmd caps_cmd; int reset = 1, j; /* @@ -3898,6 +3887,9 @@ static int adap_init0(struct adapter *adap) goto bye; } + if (is_bypass_device(adap->pdev->device)) + adap->params.bypass = 1; + /* * Grab some of our basic fundamental operating parameters. */ @@ -3940,13 +3932,12 @@ static int adap_init0(struct adapter *adap) adap->tids.aftid_end = val[1]; } -#ifdef CONFIG_CHELSIO_T4_OFFLOAD /* * Get device capabilities so we can determine what resources we need * to manage. */ memset(&caps_cmd, 0, sizeof(caps_cmd)); - caps_cmd.op_to_write = htonl(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) | + caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | FW_CMD_REQUEST | FW_CMD_READ); caps_cmd.retval_len16 = htonl(FW_LEN16(caps_cmd)); ret = t4_wr_mbox(adap, adap->mbox, &caps_cmd, sizeof(caps_cmd), @@ -3991,15 +3982,6 @@ static int adap_init0(struct adapter *adap) adap->vres.ddp.size = val[4] - val[3] + 1; adap->params.ofldq_wr_cred = val[5]; - params[0] = FW_PARAM_PFVF(ETHOFLD_START); - params[1] = FW_PARAM_PFVF(ETHOFLD_END); - ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, - params, val); - if ((val[0] != val[1]) && (ret >= 0)) { - adap->tids.uotid_base = val[0]; - adap->tids.nuotids = val[1] - val[0] + 1; - } - adap->params.offload = 1; } if (caps_cmd.rdmacaps) { @@ -4048,7 +4030,6 @@ static int adap_init0(struct adapter *adap) } #undef FW_PARAM_PFVF #undef FW_PARAM_DEV -#endif /* CONFIG_CHELSIO_T4_OFFLOAD */ /* * These are finalized by FW initialization, load their values now. diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h index 1b899fe..39bec73 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h @@ -102,6 +102,9 @@ struct tid_info { unsigned int ftid_base; unsigned int aftid_base; unsigned int aftid_end; + /* Server filter region */ + unsigned int sftid_base; + unsigned int nsftids; spinlock_t atid_lock ____cacheline_aligned_in_smp; union aopen_entry *afree; -- cgit v0.10.2 From 8dee001d98813c4cfa0be92ae3da7cabdc954c63 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 7 Aug 2012 14:46:32 +0530 Subject: extcon: Remove duplicate inclusion of extcon.h header file extcon.h header file was included twice. Signed-off-by: Sachin Kamat Signed-off-by: Sachin Kamat Signed-off-by: MyungJoo Ham diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c index 3cc152e..71d3ab7 100644 --- a/drivers/extcon/extcon-gpio.c +++ b/drivers/extcon/extcon-gpio.c @@ -26,7 +26,6 @@ #include #include #include -#include #include #include #include -- cgit v0.10.2 From 3cafbd4e5005dbef78b32f2e0fe3ab00a955c6c1 Mon Sep 17 00:00:00 2001 From: Devendra Naga Date: Fri, 31 Aug 2012 14:00:19 +0530 Subject: extcon-max8997: remove usage of ret in max8997_muic_handle_charger_type_detach actually we can do returns with error or success with out ret in this function, so remove the ret variable, and reduce a very little (4byte) space on stack of this function Signed-off-by: Devendra Naga Signed-off-by: MyungJoo Ham diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c index ef9090a..77b66b0 100644 --- a/drivers/extcon/extcon-max8997.c +++ b/drivers/extcon/extcon-max8997.c @@ -271,8 +271,6 @@ out: static int max8997_muic_handle_charger_type_detach( struct max8997_muic_info *info) { - int ret = 0; - switch (info->pre_charger_type) { case MAX8997_CHARGER_TYPE_USB: extcon_set_cable_state(info->edev, "USB", false); @@ -290,11 +288,11 @@ static int max8997_muic_handle_charger_type_detach( extcon_set_cable_state(info->edev, "Fast-charger", false); break; default: - ret = -EINVAL; + return -EINVAL; break; } - return ret; + return 0; } static int max8997_muic_handle_charger_type(struct max8997_muic_info *info, -- cgit v0.10.2 From 0cf6ad8a18f7f7bdbb81975188d9e0656ef277dd Mon Sep 17 00:00:00 2001 From: anish kumar Date: Thu, 30 Aug 2012 00:35:09 +0530 Subject: extcon: standard cable names definition and declaration changed With this change now individual drivers can use standard cable names as below: static const char *arizona_cable[] = { extcon_cable_name[EXTCON_USB], extcon_cable_name[EXTCON_USB_HOST], "CUSTOM_CABLE" NULL, } Signed-off-by: anish kumar Signed-off-by: MyungJoo Ham diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index 946a318..1e1a3f1 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -41,7 +41,7 @@ * every single port-type of the following cable names. Please choose cable * names that are actually used in your extcon device. */ -const char *extcon_cable_name[] = { +const char extcon_cable_name[][CABLE_NAME_MAX + 1] = { [EXTCON_USB] = "USB", [EXTCON_USB_HOST] = "USB-Host", [EXTCON_TA] = "TA", @@ -62,8 +62,6 @@ const char *extcon_cable_name[] = { [EXTCON_VIDEO_IN] = "Video-in", [EXTCON_VIDEO_OUT] = "Video-out", [EXTCON_MECHANICAL] = "Mechanical", - - NULL, }; static struct class *extcon_class; diff --git a/include/linux/extcon.h b/include/linux/extcon.h index 7443a56..2c26c14 100644 --- a/include/linux/extcon.h +++ b/include/linux/extcon.h @@ -68,7 +68,7 @@ enum extcon_cable_name { EXTCON_VIDEO_OUT, EXTCON_MECHANICAL, }; -extern const char *extcon_cable_name[]; +extern const char extcon_cable_name[][CABLE_NAME_MAX + 1]; struct extcon_cable; -- cgit v0.10.2 From 28c0ada62d39eaafef03d88a4e6f4c5bcb6e1b6c Mon Sep 17 00:00:00 2001 From: anish kumar Date: Thu, 30 Aug 2012 00:35:10 +0530 Subject: extcon: optimising the check_mutually_exclusive function Rather than re-inventing the wheel we can use the hamming function to calculate the number of bits set to check for violation of exclusivity. Signed-off-by: anish kumar Signed-off-by: MyungJoo Ham diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index 1e1a3f1..1ce76a8 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -89,17 +89,13 @@ static int check_mutually_exclusive(struct extcon_dev *edev, u32 new_state) return 0; for (i = 0; edev->mutually_exclusive[i]; i++) { - int count = 0, j; + int weight; u32 correspondants = new_state & edev->mutually_exclusive[i]; - u32 exp = 1; - - for (j = 0; j < 32; j++) { - if (exp & correspondants) - count++; - if (count > 1) - return i + 1; - exp <<= 1; - } + + /* calculate the total number of bits set */ + weight = hweight32(correspondants); + if (weight > 1) + return i + 1; } return 0; -- cgit v0.10.2 From bbb5823cf742a7e955f35c7d891e4e936944c33a Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Tue, 9 Oct 2012 13:00:47 +0000 Subject: netfilter: nf_conntrack: fix rt_gateway checks for H.323 helper After the change "Adjust semantics of rt->rt_gateway" (commit f8126f1d51) we should properly match the nexthop when destinations are directly connected because rt_gateway can be 0. The rt_gateway checks in H.323 helper try to avoid the creation of an unnecessary expectation in this call-forwarding case: http://people.netfilter.org/zhaojingmin/h323_conntrack_nat_helper/#_Toc133598073 However, the existing code fails to avoid that in many cases, see this thread: http://marc.info/?l=linux-netdev&m=135043175028620&w=2 It seems it is not trivial to know from the kernel if two hosts have to go through the firewall to communicate each other, which is the main point of the call-forwarding filter code to avoid creating unnecessary expectations. So this patch just gets things the way they were as before commit f8126f1d51. Signed-off-by: Julian Anastasov Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/nf_conntrack_h323_main.c b/net/netfilter/nf_conntrack_h323_main.c index 1b30b0d..962795e 100644 --- a/net/netfilter/nf_conntrack_h323_main.c +++ b/net/netfilter/nf_conntrack_h323_main.c @@ -753,7 +753,8 @@ static int callforward_do_filter(const union nf_inet_addr *src, flowi4_to_flowi(&fl1), false)) { if (!afinfo->route(&init_net, (struct dst_entry **)&rt2, flowi4_to_flowi(&fl2), false)) { - if (rt1->rt_gateway == rt2->rt_gateway && + if (rt_nexthop(rt1, fl1.daddr) == + rt_nexthop(rt2, fl2.daddr) && rt1->dst.dev == rt2->dst.dev) ret = 1; dst_release(&rt2->dst); -- cgit v0.10.2 From 21b3de881b38a84002c07b1b4bfb91892644e83f Mon Sep 17 00:00:00 2001 From: Denis Kirjanov Date: Mon, 22 Oct 2012 17:05:53 +0400 Subject: ALSA: als3000: check for the kzalloc return value Signed-off-by: Denis Kirjanov Signed-off-by: Takashi Iwai diff --git a/sound/pci/als300.c b/sound/pci/als300.c index 00f157a..5af3cb6 100644 --- a/sound/pci/als300.c +++ b/sound/pci/als300.c @@ -394,6 +394,8 @@ static int snd_als300_playback_open(struct snd_pcm_substream *substream) struct snd_als300_substream_data *data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; snd_als300_dbgcallenter(); chip->playback_substream = substream; runtime->hw = snd_als300_playback_hw; @@ -425,6 +427,8 @@ static int snd_als300_capture_open(struct snd_pcm_substream *substream) struct snd_als300_substream_data *data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; snd_als300_dbgcallenter(); chip->capture_substream = substream; runtime->hw = snd_als300_capture_hw; -- cgit v0.10.2 From 5f40b909728ad784eb43aa309d3c4e9bdf050781 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 19 Oct 2012 17:53:01 +0100 Subject: ARM: 7559/1: smp: switch away from the idmap before updating init_mm.mm_count When booting a secondary CPU, the primary CPU hands two sets of page tables via the secondary_data struct: (1) swapper_pg_dir: a normal, cacheable, shared (if SMP) mapping of the kernel image (i.e. the tables used by init_mm). (2) idmap_pgd: an uncached mapping of the .idmap.text ELF section. The idmap is generally used when enabling and disabling the MMU, which includes early CPU boot. In this case, the secondary CPU switches to swapper as soon as it enters C code: struct mm_struct *mm = &init_mm; unsigned int cpu = smp_processor_id(); /* * All kernel threads share the same mm context; grab a * reference and switch to it. */ atomic_inc(&mm->mm_count); current->active_mm = mm; cpumask_set_cpu(cpu, mm_cpumask(mm)); cpu_switch_mm(mm->pgd, mm); This causes a problem on ARMv7, where the identity mapping is treated as strongly-ordered leading to architecturally UNPREDICTABLE behaviour of exclusive accesses, such as those used by atomic_inc. This patch re-orders the secondary_start_kernel function so that we switch to swapper before performing any exclusive accesses. Cc: Cc: David McKay Reported-by: Gilles Chanteperdrix Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 8e20754d..fbc8b26 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -294,18 +294,24 @@ static void percpu_timer_setup(void); asmlinkage void __cpuinit secondary_start_kernel(void) { struct mm_struct *mm = &init_mm; - unsigned int cpu = smp_processor_id(); + unsigned int cpu; + + /* + * The identity mapping is uncached (strongly ordered), so + * switch away from it before attempting any exclusive accesses. + */ + cpu_switch_mm(mm->pgd, mm); + enter_lazy_tlb(mm, current); + local_flush_tlb_all(); /* * All kernel threads share the same mm context; grab a * reference and switch to it. */ + cpu = smp_processor_id(); atomic_inc(&mm->mm_count); current->active_mm = mm; cpumask_set_cpu(cpu, mm_cpumask(mm)); - cpu_switch_mm(mm->pgd, mm); - enter_lazy_tlb(mm, current); - local_flush_tlb_all(); printk("CPU%u: Booted secondary processor\n", cpu); -- cgit v0.10.2 From ad17a26e2273d18d27fcbb4a8d8a341ebb2d721f Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 22 Oct 2012 10:17:24 +0100 Subject: ARM: 7560/1: SMP_TWD: use DIV_ROUND_CLOSEST() for periodic mode The periodic mode is currently calculated by a simple division but we should pay more attention to our integer arithmetics. Also delete a comment that does not make any sense. Signed-off-by: Linus Walleij Signed-off-by: Russell King diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c index e1f9069..b22d700 100644 --- a/arch/arm/kernel/smp_twd.c +++ b/arch/arm/kernel/smp_twd.c @@ -42,10 +42,10 @@ static void twd_set_mode(enum clock_event_mode mode, switch (mode) { case CLOCK_EVT_MODE_PERIODIC: - /* timer load already set up */ ctrl = TWD_TIMER_CONTROL_ENABLE | TWD_TIMER_CONTROL_IT_ENABLE | TWD_TIMER_CONTROL_PERIODIC; - __raw_writel(twd_timer_rate / HZ, twd_base + TWD_TIMER_LOAD); + __raw_writel(DIV_ROUND_CLOSEST(twd_timer_rate, HZ), + twd_base + TWD_TIMER_LOAD); break; case CLOCK_EVT_MODE_ONESHOT: /* period set, and timer enabled in 'next_event' hook */ -- cgit v0.10.2 From 373304fe10fc46e68815c7116709ad292695dfd1 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 9 Oct 2012 12:01:01 +0800 Subject: firmware loader: cancel uncache work before caching firmware Under 'Opportunistic sleep' situation, system sleep might be triggered very frequently, so the uncahce work may not be completed before caching firmware during next suspend. This patch cancels the uncache work before caching firmware to fix the problem above. Also this patch optimizes the cacheing firmware mechanism a bit by only storing one firmware cache entry for one firmware image. So if the firmware is still cached during suspend, it doesn't need to be loaded from user space any more. Signed-off-by: Ming Lei Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index 8154145..d06a8d0 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -1142,17 +1142,27 @@ exit: return fce; } -static int fw_cache_piggyback_on_request(const char *name) +static int __fw_entry_found(const char *name) { struct firmware_cache *fwc = &fw_cache; struct fw_cache_entry *fce; - int ret = 0; - spin_lock(&fwc->name_lock); list_for_each_entry(fce, &fwc->fw_names, list) { if (!strcmp(fce->name, name)) - goto found; + return 1; } + return 0; +} + +static int fw_cache_piggyback_on_request(const char *name) +{ + struct firmware_cache *fwc = &fw_cache; + struct fw_cache_entry *fce; + int ret = 0; + + spin_lock(&fwc->name_lock); + if (__fw_entry_found(name)) + goto found; fce = alloc_fw_cache_entry(name); if (fce) { @@ -1229,11 +1239,19 @@ static void dev_cache_fw_image(struct device *dev, void *data) list_del(&fce->list); spin_lock(&fwc->name_lock); - fwc->cnt++; - list_add(&fce->list, &fwc->fw_names); + /* only one cache entry for one firmware */ + if (!__fw_entry_found(fce->name)) { + fwc->cnt++; + list_add(&fce->list, &fwc->fw_names); + } else { + free_fw_cache_entry(fce); + fce = NULL; + } spin_unlock(&fwc->name_lock); - async_schedule(__async_dev_cache_fw_image, (void *)fce); + if (fce) + async_schedule(__async_dev_cache_fw_image, + (void *)fce); } } @@ -1275,6 +1293,9 @@ static void device_cache_fw_images(void) pr_debug("%s\n", __func__); + /* cancel uncache work */ + cancel_delayed_work_sync(&fwc->work); + /* * use small loading timeout for caching devices' firmware * because all these firmware images have been loaded -- cgit v0.10.2 From 253c9240ee09fd2a05d315ea44ac037a893d8981 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 9 Oct 2012 12:01:02 +0800 Subject: firmware loader: fix one reqeust_firmware race Several loading requests may be pending on one same firmware buf, and this patch moves fw_map_pages_buf() before complete_all(&fw_buf->completion) and let all requests see the mapped 'buf->data' once the loading is completed. Signed-off-by: Ming Lei Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index d06a8d0..f288251 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -423,6 +423,18 @@ static void firmware_free_data(const struct firmware *fw) #ifndef PAGE_KERNEL_RO #define PAGE_KERNEL_RO PAGE_KERNEL #endif + +/* one pages buffer should be mapped/unmapped only once */ +static int fw_map_pages_buf(struct firmware_buf *buf) +{ + if (buf->data) + vunmap(buf->data); + buf->data = vmap(buf->pages, buf->nr_pages, 0, PAGE_KERNEL_RO); + if (!buf->data) + return -ENOMEM; + return 0; +} + /** * firmware_loading_store - set value in the 'loading' control file * @dev: device pointer @@ -467,6 +479,14 @@ static ssize_t firmware_loading_store(struct device *dev, if (test_bit(FW_STATUS_LOADING, &fw_buf->status)) { set_bit(FW_STATUS_DONE, &fw_buf->status); clear_bit(FW_STATUS_LOADING, &fw_buf->status); + + /* + * Several loading requests may be pending on + * one same firmware buf, so let all requests + * see the mapped 'buf->data' once the loading + * is completed. + * */ + fw_map_pages_buf(fw_buf); complete_all(&fw_buf->completion); break; } @@ -670,15 +690,6 @@ exit: return fw_priv; } -/* one pages buffer is mapped/unmapped only once */ -static int fw_map_pages_buf(struct firmware_buf *buf) -{ - buf->data = vmap(buf->pages, buf->nr_pages, 0, PAGE_KERNEL_RO); - if (!buf->data) - return -ENOMEM; - return 0; -} - /* store the pages buffer info firmware from buf */ static void fw_set_page_data(struct firmware_buf *buf, struct firmware *fw) { @@ -884,9 +895,6 @@ static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent, if (!retval && f_dev->parent) fw_add_devm_name(f_dev->parent, buf->fw_id); - if (!retval) - retval = fw_map_pages_buf(buf); - /* * After caching firmware image is started, let it piggyback * on request firmware. -- cgit v0.10.2 From 746058f4304343507e48d39f80d7a3b0d8550e3a Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 9 Oct 2012 12:01:03 +0800 Subject: firmware loader: let direct loading back on 'firmware_buf' Firstly 'firmware_buf' is introduced to make all loading requests to share one firmware kernel buffer, so firmware_buf should be used in direct loading for saving memory and speedup firmware loading. Secondly, the commit below abb139e75c2cdbb955e840d6331cb5863e409d0e(firmware:teach the kernel to load firmware files directly from the filesystem) introduces direct loading for fixing udev regression, but it bypasses the firmware cache meachnism, so this patch enables caching firmware for direct loading case since it is still needed to solve drivers' dependency during system resume. Cc: Linus Torvalds Signed-off-by: Ming Lei Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index f288251..a095d84 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -36,68 +36,6 @@ MODULE_AUTHOR("Manuel Estrada Sainz"); MODULE_DESCRIPTION("Multi purpose firmware loading support"); MODULE_LICENSE("GPL"); -static const char *fw_path[] = { - "/lib/firmware/updates/" UTS_RELEASE, - "/lib/firmware/updates", - "/lib/firmware/" UTS_RELEASE, - "/lib/firmware" -}; - -/* Don't inline this: 'struct kstat' is biggish */ -static noinline long fw_file_size(struct file *file) -{ - struct kstat st; - if (vfs_getattr(file->f_path.mnt, file->f_path.dentry, &st)) - return -1; - if (!S_ISREG(st.mode)) - return -1; - if (st.size != (long)st.size) - return -1; - return st.size; -} - -static bool fw_read_file_contents(struct file *file, struct firmware *fw) -{ - long size; - char *buf; - - size = fw_file_size(file); - if (size < 0) - return false; - buf = vmalloc(size); - if (!buf) - return false; - if (kernel_read(file, 0, buf, size) != size) { - vfree(buf); - return false; - } - fw->data = buf; - fw->size = size; - return true; -} - -static bool fw_get_filesystem_firmware(struct firmware *fw, const char *name) -{ - int i; - bool success = false; - char *path = __getname(); - - for (i = 0; i < ARRAY_SIZE(fw_path); i++) { - struct file *file; - snprintf(path, PATH_MAX, "%s/%s", fw_path[i], name); - - file = filp_open(path, O_RDONLY, 0); - if (IS_ERR(file)) - continue; - success = fw_read_file_contents(file, fw); - fput(file); - if (success) - break; - } - __putname(path); - return success; -} - /* Builtin firmware support */ #ifdef CONFIG_FW_LOADER @@ -150,6 +88,11 @@ enum { FW_STATUS_ABORT, }; +enum fw_buf_fmt { + VMALLOC_BUF, /* used in direct loading */ + PAGE_BUF, /* used in loading via userspace */ +}; + static int loading_timeout = 60; /* In seconds */ static inline long firmware_loading_timeout(void) @@ -187,6 +130,7 @@ struct firmware_buf { struct completion completion; struct firmware_cache *fwc; unsigned long status; + enum fw_buf_fmt fmt; void *data; size_t size; struct page **pages; @@ -240,6 +184,7 @@ static struct firmware_buf *__allocate_fw_buf(const char *fw_name, strcpy(buf->fw_id, fw_name); buf->fwc = fwc; init_completion(&buf->completion); + buf->fmt = VMALLOC_BUF; pr_debug("%s: fw-%s buf=%p\n", __func__, fw_name, buf); @@ -307,10 +252,14 @@ static void __fw_free_buf(struct kref *ref) list_del(&buf->list); spin_unlock(&fwc->lock); - vunmap(buf->data); - for (i = 0; i < buf->nr_pages; i++) - __free_page(buf->pages[i]); - kfree(buf->pages); + + if (buf->fmt == PAGE_BUF) { + vunmap(buf->data); + for (i = 0; i < buf->nr_pages; i++) + __free_page(buf->pages[i]); + kfree(buf->pages); + } else + vfree(buf->data); kfree(buf); } @@ -319,6 +268,69 @@ static void fw_free_buf(struct firmware_buf *buf) kref_put(&buf->ref, __fw_free_buf); } +/* direct firmware loading support */ +static const char *fw_path[] = { + "/lib/firmware/updates/" UTS_RELEASE, + "/lib/firmware/updates", + "/lib/firmware/" UTS_RELEASE, + "/lib/firmware" +}; + +/* Don't inline this: 'struct kstat' is biggish */ +static noinline long fw_file_size(struct file *file) +{ + struct kstat st; + if (vfs_getattr(file->f_path.mnt, file->f_path.dentry, &st)) + return -1; + if (!S_ISREG(st.mode)) + return -1; + if (st.size != (long)st.size) + return -1; + return st.size; +} + +static bool fw_read_file_contents(struct file *file, struct firmware_buf *fw_buf) +{ + long size; + char *buf; + + size = fw_file_size(file); + if (size < 0) + return false; + buf = vmalloc(size); + if (!buf) + return false; + if (kernel_read(file, 0, buf, size) != size) { + vfree(buf); + return false; + } + fw_buf->data = buf; + fw_buf->size = size; + return true; +} + +static bool fw_get_filesystem_firmware(struct firmware_buf *buf) +{ + int i; + bool success = false; + char *path = __getname(); + + for (i = 0; i < ARRAY_SIZE(fw_path); i++) { + struct file *file; + snprintf(path, PATH_MAX, "%s/%s", fw_path[i], buf->fw_id); + + file = filp_open(path, O_RDONLY, 0); + if (IS_ERR(file)) + continue; + success = fw_read_file_contents(file, buf); + fput(file); + if (success) + break; + } + __putname(path); + return success; +} + static struct firmware_priv *to_firmware_priv(struct device *dev) { return container_of(dev, struct firmware_priv, dev); @@ -427,6 +439,9 @@ static void firmware_free_data(const struct firmware *fw) /* one pages buffer should be mapped/unmapped only once */ static int fw_map_pages_buf(struct firmware_buf *buf) { + if (buf->fmt != PAGE_BUF) + return 0; + if (buf->data) vunmap(buf->data); buf->data = vmap(buf->pages, buf->nr_pages, 0, PAGE_KERNEL_RO); @@ -789,11 +804,6 @@ _request_firmware_prepare(const struct firmware **firmware_p, const char *name, return NULL; } - if (fw_get_filesystem_firmware(firmware, name)) { - dev_dbg(device, "firmware: direct-loading firmware %s\n", name); - return NULL; - } - ret = fw_lookup_and_allocate_buf(name, &fw_cache, &buf); if (!ret) fw_priv = fw_create_instance(firmware, name, device, @@ -843,6 +853,21 @@ static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent, struct device *f_dev = &fw_priv->dev; struct firmware_buf *buf = fw_priv->buf; struct firmware_cache *fwc = &fw_cache; + int direct_load = 0; + + /* try direct loading from fs first */ + if (fw_get_filesystem_firmware(buf)) { + dev_dbg(f_dev->parent, "firmware: direct-loading" + " firmware %s\n", buf->fw_id); + + set_bit(FW_STATUS_DONE, &buf->status); + complete_all(&buf->completion); + direct_load = 1; + goto handle_fw; + } + + /* fall back on userspace loading */ + buf->fmt = PAGE_BUF; dev_set_uevent_suppress(f_dev, true); @@ -881,6 +906,7 @@ static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent, del_timer_sync(&fw_priv->timeout); +handle_fw: mutex_lock(&fw_lock); if (!buf->size || test_bit(FW_STATUS_ABORT, &buf->status)) retval = -ENOENT; @@ -910,6 +936,9 @@ static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent, fw_priv->buf = NULL; mutex_unlock(&fw_lock); + if (direct_load) + goto err_put_dev; + device_remove_file(f_dev, &dev_attr_loading); err_del_bin_attr: device_remove_bin_file(f_dev, &firmware_attr_data); -- cgit v0.10.2 From d28d3882bd1fdb88ae4e02f11b091a92b0e5068b Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 9 Oct 2012 12:01:04 +0800 Subject: firmware loader: sync firmware cache by async_synchronize_full_domain async.c has provided synchronization mechanism on async_schedule_*, so use async_synchronize_full_domain to sync caching firmware instead of reinventing the wheel. Signed-off-by: Ming Lei Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index a095d84..8945f4e 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -116,8 +116,6 @@ struct firmware_cache { spinlock_t name_lock; struct list_head fw_names; - wait_queue_head_t wait_queue; - int cnt; struct delayed_work work; struct notifier_block pm_notify; @@ -1166,6 +1164,8 @@ int uncache_firmware(const char *fw_name) } #ifdef CONFIG_PM_SLEEP +static ASYNC_DOMAIN_EXCLUSIVE(fw_cache_domain); + static struct fw_cache_entry *alloc_fw_cache_entry(const char *name) { struct fw_cache_entry *fce; @@ -1232,12 +1232,6 @@ static void __async_dev_cache_fw_image(void *fw_entry, free_fw_cache_entry(fce); } - - spin_lock(&fwc->name_lock); - fwc->cnt--; - spin_unlock(&fwc->name_lock); - - wake_up(&fwc->wait_queue); } /* called with dev->devres_lock held */ @@ -1278,7 +1272,6 @@ static void dev_cache_fw_image(struct device *dev, void *data) spin_lock(&fwc->name_lock); /* only one cache entry for one firmware */ if (!__fw_entry_found(fce->name)) { - fwc->cnt++; list_add(&fce->list, &fwc->fw_names); } else { free_fw_cache_entry(fce); @@ -1287,8 +1280,9 @@ static void dev_cache_fw_image(struct device *dev, void *data) spin_unlock(&fwc->name_lock); if (fce) - async_schedule(__async_dev_cache_fw_image, - (void *)fce); + async_schedule_domain(__async_dev_cache_fw_image, + (void *)fce, + &fw_cache_domain); } } @@ -1350,21 +1344,7 @@ static void device_cache_fw_images(void) mutex_unlock(&fw_lock); /* wait for completion of caching firmware for all devices */ - spin_lock(&fwc->name_lock); - for (;;) { - prepare_to_wait(&fwc->wait_queue, &wait, - TASK_UNINTERRUPTIBLE); - if (!fwc->cnt) - break; - - spin_unlock(&fwc->name_lock); - - schedule(); - - spin_lock(&fwc->name_lock); - } - spin_unlock(&fwc->name_lock); - finish_wait(&fwc->wait_queue, &wait); + async_synchronize_full_domain(&fw_cache_domain); loading_timeout = old_timeout; } @@ -1452,9 +1432,7 @@ static void __init fw_cache_init(void) #ifdef CONFIG_PM_SLEEP spin_lock_init(&fw_cache.name_lock); INIT_LIST_HEAD(&fw_cache.fw_names); - fw_cache.cnt = 0; - init_waitqueue_head(&fw_cache.wait_queue); INIT_DELAYED_WORK(&fw_cache.work, device_uncache_fw_images_work); -- cgit v0.10.2 From 32c631f9f2566d09d32abc2f4c7aa24c6d8b5641 Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Fri, 12 Oct 2012 21:10:11 +0000 Subject: RDMA/cxgb4: Don't free chunk that we have failed to allocate In the error path of registering memory when there's a failure to allocate a chunk from the memory pool, we try to free the same chunk we just failed to allocate, which will BUG(). Signed-off-by: Thadeu Lima de Souza Cascardo Signed-off-by: Roland Dreier diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c index 57e07c6..afd8179 100644 --- a/drivers/infiniband/hw/cxgb4/mem.c +++ b/drivers/infiniband/hw/cxgb4/mem.c @@ -468,7 +468,7 @@ struct ib_mr *c4iw_register_phys_mem(struct ib_pd *pd, ret = alloc_pbl(mhp, npages); if (ret) { kfree(page_list); - goto err_pbl; + goto err; } ret = write_pbl(&mhp->rhp->rdev, page_list, mhp->attr.pbl_addr, -- cgit v0.10.2 From 3b6054da68f9b0d5ed6a7ed0f42a79e61904352c Mon Sep 17 00:00:00 2001 From: Octavian Purdila Date: Mon, 1 Oct 2012 22:21:12 +0300 Subject: usb hub: send clear_tt_buffer_complete events when canceling TT clear work There is a race condition in the USB hub code with regard to handling TT clear requests that can get the HCD driver in a deadlock. Usually when an TT clear request is scheduled it will be executed immediately: <7>[ 6.077583] usb 2-1.3: unlink qh1-0e01/f4d4db00 start 0 [1/2 us] <3>[ 6.078041] usb 2-1: clear tt buffer port 3, a3 ep2 t04048d82 <7>[ 6.078299] hub_tt_work:731 <7>[ 9.309089] usb 2-1.5: link qh1-0e01/f4d506c0 start 0 [1/2 us] <7>[ 9.324526] ehci_hcd 0000:00:1d.0: reused qh f4d4db00 schedule <7>[ 9.324539] usb 2-1.3: link qh1-0e01/f4d4db00 start 0 [1/2 us] <7>[ 9.341530] usb 1-1.1: link qh4-0e01/f397aec0 start 2 [1/2 us] <7>[ 10.116159] usb 2-1.3: unlink qh1-0e01/f4d4db00 start 0 [1/2 us] <3>[ 10.116459] usb 2-1: clear tt buffer port 3, a3 ep2 t04048d82 <7>[ 10.116537] hub_tt_work:731 However, if a suspend operation is triggered before hub_tt_work is scheduled, hub_quiesce will cancel the work without notifying the HCD driver: <3>[ 35.033941] usb 2-1: clear tt buffer port 3, a3 ep2 t04048d80 <5>[ 35.034022] sd 0:0:0:0: [sda] Stopping disk <7>[ 35.034039] hub 2-1:1.0: hub_suspend <7>[ 35.034067] usb 2-1: unlink qh256-0001/f3b1ab00 start 1 [1/0 us] <7>[ 35.035085] hub 1-0:1.0: hub_suspend <7>[ 35.035102] usb usb1: bus suspend, wakeup 0 <7>[ 35.035106] ehci_hcd 0000:00:1a.0: suspend root hub <7>[ 35.035298] hub 2-0:1.0: hub_suspend <7>[ 35.035313] usb usb2: bus suspend, wakeup 0 <7>[ 35.035315] ehci_hcd 0000:00:1d.0: suspend root hub <6>[ 35.250017] PM: suspend of devices complete after 216.979 msecs <6>[ 35.250822] PM: late suspend of devices complete after 0.799 msecs <7>[ 35.252343] ehci_hcd 0000:00:1d.0: wakeup: 1 <7>[ 35.262923] ehci_hcd 0000:00:1d.0: --> PCI D3hot <7>[ 35.263302] ehci_hcd 0000:00:1a.0: wakeup: 1 <7>[ 35.273912] ehci_hcd 0000:00:1a.0: --> PCI D3hot <6>[ 35.274254] PM: noirq suspend of devices complete after 23.442 msecs <6>[ 35.274975] ACPI: Preparing to enter system sleep state S3 <6>[ 35.292666] PM: Saving platform NVS memory <7>[ 35.295030] Disabling non-boot CPUs ... <6>[ 35.297351] CPU 1 is now offline <6>[ 35.300345] CPU 2 is now offline <6>[ 35.303929] CPU 3 is now offline <7>[ 35.303931] lockdep: fixing up alternatives. <6>[ 35.304825] Extended CMOS year: 2000 When the device will resume the EHCI driver will get stuck in ehci_endpoint_disable waiting for the tt_clearing flag to reset: <0>[ 47.610967] usb 2-1.3: **** DPM device timeout **** <7>[ 47.610972] f2f11c60 00000092 f2f11c0c c10624a5 00000003 f4c6e880 c1c8a4c0 c1c8a4c0 <7>[ 47.610983] 15c55698 0000000b f56b34c0 f2a45b70 f4c6e880 00000082 f2a4602c f2f11c30 <7>[ 47.610993] c10787f8 f4cac000 f2a45b70 00000000 f4cac010 f2f11c58 00000046 00000001 <7>[ 47.611004] Call Trace: <7>[ 47.611006] [] ? sched_clock_cpu+0xf5/0x160 <7>[ 47.611019] [] ? lock_release_holdtime.part.22+0x88/0xf0 <7>[ 47.611026] [] ? lock_timer_base.isra.35+0x26/0x50 <7>[ 47.611034] [] ? schedule_timeout+0x133/0x290 <7>[ 47.611044] [] schedule+0x1e/0x50 <7>[ 47.611051] [] schedule_timeout+0x138/0x290 <7>[ 47.611057] [] ? sched_clock_cpu+0xf5/0x160 <7>[ 47.611063] [] ? usleep_range+0x40/0x40 <7>[ 47.611070] [] schedule_timeout_uninterruptible+0x15/0x20 <7>[ 47.611077] [] ehci_endpoint_disable+0x64/0x160 <7>[ 47.611084] [] ? usb_hcd_flush_endpoint+0x10e/0x1d0 <7>[ 47.611092] [] ? sysfs_add_file+0x13/0x20 <7>[ 47.611100] [] usb_hcd_disable_endpoint+0x29/0x40 <7>[ 47.611107] [] usb_disable_endpoint+0x5c/0x80 <7>[ 47.611111] [] usb_disable_interface+0x37/0x50 <7>[ 47.611116] [] usb_reset_and_verify_device+0x4b0/0x640 <7>[ 47.611122] [] ? hub_port_status+0xb5/0x100 <7>[ 47.611129] [] usb_port_resume+0xd5/0x220 <7>[ 47.611136] [] generic_resume+0xf/0x30 <7>[ 47.611142] [] usb_resume+0x133/0x180 <7>[ 47.611147] [] ? usb_dev_thaw+0x10/0x10 <7>[ 47.611152] [] usb_dev_resume+0xd/0x10 <7>[ 47.611157] [] dpm_run_callback+0x40/0xb0 <7>[ 47.611164] [] ? pm_runtime_enable+0x43/0x70 <7>[ 47.611171] [] device_resume+0x1a6/0x2c0 <7>[ 47.611177] [] ? dpm_show_time+0xe0/0xe0 <7>[ 47.611183] [] async_resume+0x19/0x40 <7>[ 47.611189] [] async_run_entry_fn+0x64/0x160 <7>[ 47.611196] [] ? process_one_work+0x104/0x480 <7>[ 47.611203] [] ? process_one_work+0x10c/0x480 <7>[ 47.611209] [] process_one_work+0x180/0x480 <7>[ 47.611215] [] ? process_one_work+0x104/0x480 <7>[ 47.611220] [] ? async_schedule+0x10/0x10 <7>[ 47.611226] [] worker_thread+0x11c/0x2f0 <7>[ 47.611233] [] ? manage_workers.isra.27+0x1f0/0x1f0 <7>[ 47.611239] [] kthread+0x78/0x80 <7>[ 47.611244] [] ? timer_cpu_notify+0xd6/0x20d <7>[ 47.611253] [] ? __init_kthread_worker+0x60/0x60 <7>[ 47.611258] [] kernel_thread_helper+0x6/0xd <7>[ 47.611283] ------------[ cut here ]------------ This patch changes hub_quiesce behavior to flush the TT clear work instead of canceling it, to make sure that no TT clear request remains uncompleted before suspend. Signed-off-by: Octavian Purdila Acked-by: Alan Stern Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 64854d7..1181e91 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -739,13 +739,16 @@ static void hub_tt_work(struct work_struct *work) int limit = 100; spin_lock_irqsave (&hub->tt.lock, flags); - while (--limit && !list_empty (&hub->tt.clear_list)) { + while (!list_empty(&hub->tt.clear_list)) { struct list_head *next; struct usb_tt_clear *clear; struct usb_device *hdev = hub->hdev; const struct hc_driver *drv; int status; + if (!hub->quiescing && --limit < 0) + break; + next = hub->tt.clear_list.next; clear = list_entry (next, struct usb_tt_clear, clear_list); list_del (&clear->clear_list); @@ -1210,7 +1213,7 @@ static void hub_quiesce(struct usb_hub *hub, enum hub_quiescing_type type) if (hub->has_indicators) cancel_delayed_work_sync(&hub->leds); if (hub->tt.hub) - cancel_work_sync(&hub->tt.clear_work); + flush_work_sync(&hub->tt.clear_work); } /* caller has locked the hub device */ -- cgit v0.10.2 From 6681e63399926651cc29bcb9d92229b6f1cf1daa Mon Sep 17 00:00:00 2001 From: Fred Brooks Date: Tue, 2 Oct 2012 11:10:26 +0100 Subject: staging: comedi: ni_daq_700: fix dio subdevice regression Here is a small patch to fix a problem caused by a previous patch that removed the callback function. The callback remove patch: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=1de02225358988e8fd48d1dc3fd12336bbae258a I finally booted my dev machine on the latest kernel (running Debian here so it's still on 3.2 normally) to test the ni_daq_700 driver with my test program and noticed this bug. Shift the DIO_R read result to bits 8..15 Digital direction configuration: channels 0-7 output, 8-15 input (8225 device emu as port A output, port B input, port C N/A). Cc: # 3.6.x Signed-off-by: Fred Brooks Signed-off-by: Ian Abbott Reviewed-by: H Hartley Sweeten Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_daq_700.c b/drivers/staging/comedi/drivers/ni_daq_700.c index 2ba0ade..68d7c6a 100644 --- a/drivers/staging/comedi/drivers/ni_daq_700.c +++ b/drivers/staging/comedi/drivers/ni_daq_700.c @@ -95,7 +95,7 @@ static int daq700_dio_insn_bits(struct comedi_device *dev, } data[1] = s->state & 0xff; - data[1] |= inb(dev->iobase + DIO_R); + data[1] |= inb(dev->iobase + DIO_R) << 8; return insn->n; } -- cgit v0.10.2 From f4dd2367f3ad276fe49c89a522267ea5ccb6bf80 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Wed, 3 Oct 2012 16:25:15 +0100 Subject: staging: comedi: 8255_pci: fix possible NULL deref during detach `pci_8255_detach()` will be called by the comedi core if `pci_8255_attach_pci()` returns an error. It currently assumes that both `board` (assigned from the return value of `comedi_board(dev)`) and `devpriv` (assigned from `dev->private`) are non-null, but they might be null, leading to a null pointer dereference. `pci_8255_detach()` doesn't need to do anything if either `board` or `devpriv` are null, so just return early in this case. Cc: # 3.6.x Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/8255_pci.c b/drivers/staging/comedi/drivers/8255_pci.c index 7dff3c0..d00aff6 100644 --- a/drivers/staging/comedi/drivers/8255_pci.c +++ b/drivers/staging/comedi/drivers/8255_pci.c @@ -289,6 +289,8 @@ static void pci_8255_detach(struct comedi_device *dev) struct comedi_subdevice *s; int i; + if (!board || !devpriv) + return; if (dev->subdevices) { for (i = 0; i < board->n_8255; i++) { s = &dev->subdevices[i]; -- cgit v0.10.2 From dfb2540e91e1f63765bc3ff497ad0b714d774261 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Wed, 3 Oct 2012 16:25:16 +0100 Subject: staging: comedi: amplc_dio200: fix possible NULL deref during detach `dio200_detach()` is called by the comedi core to clean up if either `dio200_attach()` or `dio200_attach_pci()` return an error. It assigns `thisboard` to the return value of `comedi_board(dev)` and assumes it is non-null. In the case of a previous call to `dio200_attach()` it won't be `NULL` because the comedi core will have pointed it to one of the elements of `dio200_boards[]`, but in the case of a previous call to `dio200_attach_pci()` it could be `NULL`, leading to a null pointer dereference. Check that `thisboard` is valid at the top of `dio200_detach()` and return early if it is `NULL`. This is okay because the only other thing that could have been allocated is `dev->private` and that is freed by the comedi core, not by this function. Cc: # 3.6.x Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_dio200.c b/drivers/staging/comedi/drivers/amplc_dio200.c index 08f3052..29eb52d 100644 --- a/drivers/staging/comedi/drivers/amplc_dio200.c +++ b/drivers/staging/comedi/drivers/amplc_dio200.c @@ -1410,6 +1410,8 @@ static void dio200_detach(struct comedi_device *dev) const struct dio200_layout_struct *layout; unsigned n; + if (!thisboard) + return; if (dev->irq) free_irq(dev->irq, dev); if (dev->subdevices) { -- cgit v0.10.2 From aaeb61a97b7159ebe30b18a422d04eeabfa8790b Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Wed, 3 Oct 2012 16:25:17 +0100 Subject: staging: comedi: amplc_pc236: fix invalid register access during detach `pc236_detach()` is called by the comedi core if it attempted to attach a device and failed. `pc236_detach()` calls `pc236_intr_disable()` if the comedi device private data pointer (`devpriv`) is non-null. This test is insufficient as `pc236_intr_disable()` accesses hardware registers and the attach routine may have failed before it has saved their I/O base addresses. Fix it by checking `dev->iobase` is non-zero before calling `pc236_intr_disable()` as that means the I/O base addresses have been saved and the hardware registers can be accessed. It also implies the comedi device private data pointer is valid, so there is no need to check it. Cc: # 3.5.x, 3.6.x Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_pc236.c b/drivers/staging/comedi/drivers/amplc_pc236.c index eacb5e4..36768b2 100644 --- a/drivers/staging/comedi/drivers/amplc_pc236.c +++ b/drivers/staging/comedi/drivers/amplc_pc236.c @@ -573,9 +573,8 @@ static int __devinit pc236_attach_pci(struct comedi_device *dev, static void pc236_detach(struct comedi_device *dev) { const struct pc236_board *thisboard = comedi_board(dev); - struct pc236_private *devpriv = dev->private; - if (devpriv) + if (dev->iobase) pc236_intr_disable(dev); if (dev->irq) free_irq(dev->irq, dev); -- cgit v0.10.2 From 2db012bd40b889d8e5483d3daa07af04c4c109d8 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Wed, 3 Oct 2012 16:25:18 +0100 Subject: staging: comedi: amplc_pc236: fix possible NULL deref during detach `pc236_detach()` is called by the comedi core to clean up if either `pc236_attach()` or `pc236_attach_pci()` returns an error. It sets `thisboard` to the return value of `comedi_board(dev)` and assumes it is non-null. This is a valid assumption if `pc236_attach()` fails, but not if `pc236_attach_pci()` fails, leading to a possible NULL pointer dereference. Check `thisboard` at the top of `pc236_detach()` and return early if it is `NULL`. This is okay because the only other thing that could have been allocated is `dev->private` and that is freed by the comedi core, not by this function. Cc: # 3.6.x Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_pc236.c b/drivers/staging/comedi/drivers/amplc_pc236.c index 36768b2..4e4f3c1 100644 --- a/drivers/staging/comedi/drivers/amplc_pc236.c +++ b/drivers/staging/comedi/drivers/amplc_pc236.c @@ -574,6 +574,8 @@ static void pc236_detach(struct comedi_device *dev) { const struct pc236_board *thisboard = comedi_board(dev); + if (!thisboard) + return; if (dev->iobase) pc236_intr_disable(dev); if (dev->irq) -- cgit v0.10.2 From 1d1171ffda585c1cab7bd7cf4bd8f8fd5923fb4a Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Wed, 3 Oct 2012 16:25:19 +0100 Subject: staging: comedi: amplc_pc263: fix possible NULL deref during detach `pc263_detach()` is called by the comedi core to clean up if either `pc263_attach()` or `pc263_attach_pci()` returns an error. It sets `thisboard` to the return value of `comedi_board(dev)` and assumes it is non-null. This is a valid assumption if `pc263_attach()` fails, but not if `pc263_attach_pci()` fails, leading to a possible NULL pointer dereference. Check `thisboard` at the top of `pc263_detach()` and return early if it is `NULL`. This is okay because no other resources need cleaning up in this case. Cc: # 3.6.x Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_pc263.c b/drivers/staging/comedi/drivers/amplc_pc263.c index 60830cc..d0a4c44 100644 --- a/drivers/staging/comedi/drivers/amplc_pc263.c +++ b/drivers/staging/comedi/drivers/amplc_pc263.c @@ -323,6 +323,8 @@ static void pc263_detach(struct comedi_device *dev) { const struct pc263_board *thisboard = comedi_board(dev); + if (!thisboard) + return; if (is_isa_board(thisboard)) { if (dev->iobase) release_region(dev->iobase, PC263_IO_SIZE); -- cgit v0.10.2 From ee280d134f2e05e0172369a53fbe202dbfc527fa Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Wed, 3 Oct 2012 16:25:20 +0100 Subject: staging: comedi: das08: fix possible NULL deref during detach `das08_detach()` is called by the comedi core to clean up if either `das08_attach()` or `das08_attach_pci()` returns an error. It sets `thisboard` to the return value of `comedi_board(dev)` and assumes it is non-null. This is a valid assumption if `das08_attach()` fails, but not if `das08_attach_pci()` fails, leading to a possible NULL pointer dereference. Check `thisboard` at the top of `das08_detach()` and return early if it is `NULL`. This is okay because the only other thing that could have been allocated is `dev->private` and that is freed by the comedi core, not by this function. Cc: # 3.6.x Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c index 5fd21fa..c304528 100644 --- a/drivers/staging/comedi/drivers/das08.c +++ b/drivers/staging/comedi/drivers/das08.c @@ -846,6 +846,8 @@ static void __maybe_unused das08_detach(struct comedi_device *dev) { const struct das08_board_struct *thisboard = comedi_board(dev); + if (!thisboard) + return; das08_common_detach(dev); if (is_isa_board(thisboard)) { if (dev->iobase) -- cgit v0.10.2 From 922b67c1ac53014d80649a961a2fde700cd065d8 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Wed, 3 Oct 2012 16:25:21 +0100 Subject: staging: comedi: ni_labpc: fix possible NULL deref during detach `labpc_common_detach()` is called by the comedi core to clean up if either `labpc_attach()` (including the one in the "ni_labpc_cs" module) or `labpc_attach_pci()` returns an error. It assumes the `thisboard` macro (expanding to `((struct labpc_board_struct *)dev->board_ptr)`) is non-null. This is a valid assumption if `labpc_attach()` fails, but not if `labpc_attach_pci()` fails, leading to a possible NULL pointer dereference. Check `thisboard` at the top of `labpc_common_detach()` and return early if it is `NULL`. This is okay because the only other thing that could have been allocated is `dev->private` and that is freed by the comedi core, not by this function. Cc: # 3.6.x Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c index 28b91a6..b5a19a0 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.c +++ b/drivers/staging/comedi/drivers/ni_labpc.c @@ -772,6 +772,8 @@ void labpc_common_detach(struct comedi_device *dev) { struct comedi_subdevice *s; + if (!thisboard) + return; if (dev->subdevices) { s = &dev->subdevices[2]; subdev_8255_cleanup(dev, s); -- cgit v0.10.2 From 6f73601efb35c7003f5c58c2bc6fd08f3652169c Mon Sep 17 00:00:00 2001 From: Yuchung Cheng Date: Fri, 19 Oct 2012 15:14:44 +0000 Subject: tcp: add SYN/data info to TCP_INFO Add a bit TCPI_OPT_SYN_DATA (32) to the socket option TCP_INFO:tcpi_options. It's set if the data in SYN (sent or received) is acked by SYN-ACK. Server or client application can use this information to check Fast Open success rate. Signed-off-by: Yuchung Cheng Acked-by: Neal Cardwell Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 8a7fc4b..60b7aac 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -191,7 +191,8 @@ struct tcp_sock { u8 do_early_retrans:1,/* Enable RFC5827 early-retransmit */ early_retrans_delayed:1, /* Delayed ER timer installed */ syn_data:1, /* SYN includes data */ - syn_fastopen:1; /* SYN includes Fast Open option */ + syn_fastopen:1, /* SYN includes Fast Open option */ + syn_data_acked:1;/* data in SYN is acked by SYN-ACK */ /* RTT measurement */ u32 srtt; /* smoothed round trip time << 3 */ diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h index c4b89a5..e962faa 100644 --- a/include/uapi/linux/tcp.h +++ b/include/uapi/linux/tcp.h @@ -130,6 +130,7 @@ enum { #define TCPI_OPT_WSCALE 4 #define TCPI_OPT_ECN 8 /* ECN was negociated at TCP session init */ #define TCPI_OPT_ECN_SEEN 16 /* we received at least one packet with ECT */ +#define TCPI_OPT_SYN_DATA 32 /* SYN-ACK acked data in SYN sent or rcvd */ enum tcp_ca_state { TCP_CA_Open = 0, diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index b7c2f43..197c000 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2764,6 +2764,8 @@ void tcp_get_info(const struct sock *sk, struct tcp_info *info) info->tcpi_options |= TCPI_OPT_ECN; if (tp->ecn_flags & TCP_ECN_SEEN) info->tcpi_options |= TCPI_OPT_ECN_SEEN; + if (tp->syn_data_acked) + info->tcpi_options |= TCPI_OPT_SYN_DATA; info->tcpi_rto = jiffies_to_usecs(icsk->icsk_rto); info->tcpi_ato = jiffies_to_usecs(icsk->icsk_ack.ato); diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 432c366..036f857 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -5646,6 +5646,7 @@ static bool tcp_rcv_fastopen_synack(struct sock *sk, struct sk_buff *synack, tcp_rearm_rto(sk); return true; } + tp->syn_data_acked = tp->syn_data; return false; } diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index ef998b0..0c4a643 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1461,6 +1461,7 @@ static int tcp_v4_conn_req_fastopen(struct sock *sk, skb_set_owner_r(skb, child); __skb_queue_tail(&child->sk_receive_queue, skb); tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq; + tp->syn_data_acked = 1; } sk->sk_data_ready(sk, 0); bh_unlock_sock(child); diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c index 27536ba..a7302d9 100644 --- a/net/ipv4/tcp_minisocks.c +++ b/net/ipv4/tcp_minisocks.c @@ -510,6 +510,7 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req, newtp->rx_opt.mss_clamp = req->mss; TCP_ECN_openreq_child(newtp, req); newtp->fastopen_rsk = NULL; + newtp->syn_data_acked = 0; TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_PASSIVEOPENS); } -- cgit v0.10.2 From 8a6e29d6d037de0dd62fe6648ba9b29866db5416 Mon Sep 17 00:00:00 2001 From: Joe Jin Date: Sun, 21 Oct 2012 14:40:36 +0000 Subject: qla3xxx: Ensure request/response queue addr writes to the registers Before use the request and response queue addr, make sure it has wrote to the registers. Signed-off-by: Joe Jin Cc: Jitendra Kalsaria Cc: Ron Mercer Acked-by: Jitendra Kalsaria Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c index df09b1c..6407d0d 100644 --- a/drivers/net/ethernet/qlogic/qla3xxx.c +++ b/drivers/net/ethernet/qlogic/qla3xxx.c @@ -2525,6 +2525,13 @@ static int ql_alloc_net_req_rsp_queues(struct ql3_adapter *qdev) qdev->req_q_size = (u32) (NUM_REQ_Q_ENTRIES * sizeof(struct ob_mac_iocb_req)); + qdev->rsp_q_size = NUM_RSP_Q_ENTRIES * sizeof(struct net_rsp_iocb); + + /* The barrier is required to ensure request and response queue + * addr writes to the registers. + */ + wmb(); + qdev->req_q_virt_addr = pci_alloc_consistent(qdev->pdev, (size_t) qdev->req_q_size, @@ -2536,8 +2543,6 @@ static int ql_alloc_net_req_rsp_queues(struct ql3_adapter *qdev) return -ENOMEM; } - qdev->rsp_q_size = NUM_RSP_Q_ENTRIES * sizeof(struct net_rsp_iocb); - qdev->rsp_q_virt_addr = pci_alloc_consistent(qdev->pdev, (size_t) qdev->rsp_q_size, -- cgit v0.10.2 From 3d861f661006606bf159fd6bd973e83dbf21d0f9 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 22 Oct 2012 09:03:40 +0000 Subject: net: fix secpath kmemleak Mike Kazantsev found 3.5 kernels and beyond were leaking memory, and tracked the faulty commit to a1c7fff7e18f59e ("net: netdev_alloc_skb() use build_skb()") While this commit seems fine, it uncovered a bug introduced in commit bad43ca8325 ("net: introduce skb_try_coalesce()), in function kfree_skb_partial()"): If head is stolen, we free the sk_buff, without removing references on secpath (skb->sp). So IPsec + IP defrag/reassembly (using skb coalescing), or TCP coalescing could leak secpath objects. Fix this bug by calling skb_release_head_state(skb) to properly release all possible references to linked objects. Reported-by: Mike Kazantsev Signed-off-by: Eric Dumazet Bisected-by: Mike Kazantsev Tested-by: Mike Kazantsev Signed-off-by: David S. Miller diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 6e04b1f..4007c14 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -3379,10 +3379,12 @@ EXPORT_SYMBOL(__skb_warn_lro_forwarding); void kfree_skb_partial(struct sk_buff *skb, bool head_stolen) { - if (head_stolen) + if (head_stolen) { + skb_release_head_state(skb); kmem_cache_free(skbuff_head_cache, skb); - else + } else { __kfree_skb(skb); + } } EXPORT_SYMBOL(kfree_skb_partial); -- cgit v0.10.2 From 65635cbc37e011e71b208257a25e7c1078cd039b Mon Sep 17 00:00:00 2001 From: Jun'ichi Nomura Date: Wed, 17 Oct 2012 17:45:36 +0900 Subject: blkcg: Fix use-after-free of q->root_blkg and q->root_rl.blkg blk_put_rl() does not call blkg_put() for q->root_rl because we don't take request list reference on q->root_blkg. However, if root_blkg is once attached then detached (freed), blk_put_rl() is confused by the bogus pointer in q->root_blkg. For example, with !CONFIG_BLK_DEV_THROTTLING && CONFIG_CFQ_GROUP_IOSCHED, switching IO scheduler from cfq to deadline will cause system stall after the following warning with 3.6: > WARNING: at /work/build/linux/block/blk-cgroup.h:250 > blk_put_rl+0x4d/0x95() > Modules linked in: bridge stp llc sunrpc acpi_cpufreq freq_table mperf > ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 > Pid: 0, comm: swapper/0 Not tainted 3.6.0 #1 > Call Trace: > [] warn_slowpath_common+0x85/0x9d > [] warn_slowpath_null+0x1a/0x1c > [] blk_put_rl+0x4d/0x95 > [] __blk_put_request+0xc3/0xcb > [] blk_finish_request+0x232/0x23f > [] ? blk_end_bidi_request+0x34/0x5d > [] blk_end_bidi_request+0x42/0x5d > [] blk_end_request+0x10/0x12 > [] scsi_io_completion+0x207/0x4d5 > [] scsi_finish_command+0xfa/0x103 > [] scsi_softirq_done+0xff/0x108 > [] blk_done_softirq+0x8d/0xa1 > [] ? > generic_smp_call_function_single_interrupt+0x9f/0xd7 > [] __do_softirq+0x102/0x213 > [] ? lock_release_holdtime+0xb6/0xbb > [] ? raise_softirq_irqoff+0x9/0x3d > [] call_softirq+0x1c/0x30 > [] do_softirq+0x4b/0xa3 > [] irq_exit+0x53/0xd5 > [] smp_call_function_single_interrupt+0x34/0x36 > [] call_function_single_interrupt+0x6f/0x80 > [] ? mwait_idle+0x94/0xcd > [] ? mwait_idle+0x8b/0xcd > [] cpu_idle+0xbb/0x114 > [] rest_init+0xc1/0xc8 > [] ? csum_partial_copy_generic+0x16c/0x16c > [] start_kernel+0x3d4/0x3e1 > [] ? kernel_init+0x1f7/0x1f7 > [] x86_64_start_reservations+0xb8/0xbd > [] x86_64_start_kernel+0x101/0x110 This patch clears q->root_blkg and q->root_rl.blkg when root blkg is destroyed. Signed-off-by: Jun'ichi Nomura Acked-by: Vivek Goyal Acked-by: Tejun Heo Cc: stable@kernel.org Signed-off-by: Jens Axboe diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index cafcd74..3ad5e3f 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -285,6 +285,13 @@ static void blkg_destroy_all(struct request_queue *q) blkg_destroy(blkg); spin_unlock(&blkcg->lock); } + + /* + * root blkg is destroyed. Just clear the pointer since + * root_rl does not take reference on root blkg. + */ + q->root_blkg = NULL; + q->root_rl.blkg = NULL; } static void blkg_rcu_free(struct rcu_head *rcu_head) -- cgit v0.10.2 From 65c77fd9e8a1c8c3da0bbbea6b7efa3d6ef265f8 Mon Sep 17 00:00:00 2001 From: Jun'ichi Nomura Date: Mon, 22 Oct 2012 10:15:37 +0900 Subject: blkcg: stop iteration early if root_rl is the only request list __blk_queue_next_rl() finds next request list based on blkg_list while skipping root_blkg in the list. OTOH, root_rl is special as it may exist even without root_blkg. Though the later part of the function handles such a case correctly, exiting early is good for readability of the code. Signed-off-by: Jun'ichi Nomura Cc: Tejun Heo Acked-by: Vivek Goyal Signed-off-by: Jens Axboe diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 3ad5e3f..d0b7703 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -333,6 +333,9 @@ struct request_list *__blk_queue_next_rl(struct request_list *rl, */ if (rl == &q->root_rl) { ent = &q->blkg_list; + /* There are no more block groups, hence no request lists */ + if (list_empty(ent)) + return NULL; } else { blkg = container_of(rl, struct blkcg_gq, rl); ent = &blkg->q_node; -- cgit v0.10.2 From 386bc35a2d548c28a5083b2e162a20251b37cab5 Mon Sep 17 00:00:00 2001 From: Anna Leuschner Date: Mon, 22 Oct 2012 21:53:36 +0200 Subject: vfs: fix: don't increase bio_slab_max if krealloc() fails Without the patch, bio_slab_max, representing bio_slabs capacity, is increased before krealloc() of bio_slabs. If krealloc() fails, bio_slab_max is too high. Fix that by only updating bio_slab_max if krealloc() is successful. Signed-off-by: Anna Leuschner Signed-off-by: Jens Axboe diff --git a/fs/bio.c b/fs/bio.c index 9298c65..b96fc6c 100644 --- a/fs/bio.c +++ b/fs/bio.c @@ -75,6 +75,7 @@ static struct kmem_cache *bio_find_or_create_slab(unsigned int extra_size) unsigned int sz = sizeof(struct bio) + extra_size; struct kmem_cache *slab = NULL; struct bio_slab *bslab, *new_bio_slabs; + unsigned int new_bio_slab_max; unsigned int i, entry = -1; mutex_lock(&bio_slab_lock); @@ -97,12 +98,13 @@ static struct kmem_cache *bio_find_or_create_slab(unsigned int extra_size) goto out_unlock; if (bio_slab_nr == bio_slab_max && entry == -1) { - bio_slab_max <<= 1; + new_bio_slab_max = bio_slab_max << 1; new_bio_slabs = krealloc(bio_slabs, - bio_slab_max * sizeof(struct bio_slab), + new_bio_slab_max * sizeof(struct bio_slab), GFP_KERNEL); if (!new_bio_slabs) goto out_unlock; + bio_slab_max = new_bio_slab_max; bio_slabs = new_bio_slabs; } if (entry == -1) -- cgit v0.10.2 From 675d66b0ed5fd170d6a44cf8dbb3fa56a5347bdb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= Date: Tue, 16 Oct 2012 15:29:54 -0700 Subject: Staging: android: binder: Fix memory leak on thread/process exit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If a thread or process exited while a reply, one-way transaction or death notification was pending, the struct holding the pending work was leaked. Signed-off-by: Arve Hjønnevåg Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c index 7b0ba92..db6c4c5 100644 --- a/drivers/staging/android/binder.c +++ b/drivers/staging/android/binder.c @@ -2419,14 +2419,38 @@ static void binder_release_work(struct list_head *list) struct binder_transaction *t; t = container_of(w, struct binder_transaction, work); - if (t->buffer->target_node && !(t->flags & TF_ONE_WAY)) + if (t->buffer->target_node && + !(t->flags & TF_ONE_WAY)) { binder_send_failed_reply(t, BR_DEAD_REPLY); + } else { + binder_debug(BINDER_DEBUG_DEAD_TRANSACTION, + "binder: undelivered transaction %d\n", + t->debug_id); + t->buffer->transaction = NULL; + kfree(t); + binder_stats_deleted(BINDER_STAT_TRANSACTION); + } } break; case BINDER_WORK_TRANSACTION_COMPLETE: { + binder_debug(BINDER_DEBUG_DEAD_TRANSACTION, + "binder: undelivered TRANSACTION_COMPLETE\n"); kfree(w); binder_stats_deleted(BINDER_STAT_TRANSACTION_COMPLETE); } break; + case BINDER_WORK_DEAD_BINDER_AND_CLEAR: + case BINDER_WORK_CLEAR_DEATH_NOTIFICATION: { + struct binder_ref_death *death; + + death = container_of(w, struct binder_ref_death, work); + binder_debug(BINDER_DEBUG_DEAD_TRANSACTION, + "binder: undelivered death notification, %p\n", + death->cookie); + kfree(death); + binder_stats_deleted(BINDER_STAT_DEATH); + } break; default: + pr_err("binder: unexpected work type, %d, not freed\n", + w->type); break; } } @@ -2899,6 +2923,7 @@ static void binder_deferred_release(struct binder_proc *proc) nodes++; rb_erase(&node->rb_node, &proc->nodes); list_del_init(&node->work.entry); + binder_release_work(&node->async_todo); if (hlist_empty(&node->refs)) { kfree(node); binder_stats_deleted(BINDER_STAT_NODE); @@ -2937,6 +2962,7 @@ static void binder_deferred_release(struct binder_proc *proc) binder_delete_ref(ref); } binder_release_work(&proc->todo); + binder_release_work(&proc->delivered_death); buffers = 0; while ((n = rb_first(&proc->allocated_buffers))) { -- cgit v0.10.2 From 585650dcec88e704a19bb226a34b6a7166111623 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= Date: Tue, 16 Oct 2012 15:29:55 -0700 Subject: Staging: android: binder: Allow using highmem for binder buffers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The default kernel mapping for the pages allocated for the binder buffers is never used. Set the __GFP_HIGHMEM flag when allocating these pages so we don't needlessly use low memory pages that may be required elsewhere. Signed-off-by: Arve Hjønnevåg Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c index db6c4c5..5d4610b 100644 --- a/drivers/staging/android/binder.c +++ b/drivers/staging/android/binder.c @@ -567,7 +567,7 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate, page = &proc->pages[(page_addr - proc->buffer) / PAGE_SIZE]; BUG_ON(*page); - *page = alloc_page(GFP_KERNEL | __GFP_ZERO); + *page = alloc_page(GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO); if (*page == NULL) { pr_err("binder: %d: binder_alloc_buf failed " "for page at %p\n", proc->pid, page_addr); -- cgit v0.10.2 From 170ed807340b4db0a5e010c2e4da43cf5a2c9a29 Mon Sep 17 00:00:00 2001 From: Lan Tianyu Date: Mon, 15 Oct 2012 15:38:34 +0800 Subject: usb/xhci: release xhci->lock during turning on/off usb port's acpi power resource and checking the existence of port's power resource When setting usb port's acpi power resource, there will be some xhci hub requests. This will cause dead lock since xhci->lock has been held before setting acpi power resource in the xhci_hub_control(). The usb_acpi_power_manageable() function might fall into sleep so release xhci->lock before invoking it. Signed-off-by: Lan Tianyu Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index aa90ad4..65d416c 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -809,11 +809,13 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, temp = xhci_readl(xhci, port_array[wIndex]); xhci_dbg(xhci, "set port power, actual port %d status = 0x%x\n", wIndex, temp); + spin_unlock_irqrestore(&xhci->lock, flags); temp = usb_acpi_power_manageable(hcd->self.root_hub, wIndex); if (temp) usb_acpi_set_power_state(hcd->self.root_hub, wIndex, true); + spin_lock_irqsave(&xhci->lock, flags); break; case USB_PORT_FEAT_RESET: temp = (temp | PORT_RESET); @@ -917,11 +919,13 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, xhci_writel(xhci, temp & ~PORT_POWER, port_array[wIndex]); + spin_unlock_irqrestore(&xhci->lock, flags); temp = usb_acpi_power_manageable(hcd->self.root_hub, wIndex); if (temp) usb_acpi_set_power_state(hcd->self.root_hub, wIndex, false); + spin_lock_irqsave(&xhci->lock, flags); break; default: goto error; -- cgit v0.10.2 From 27c411c95a8e9ed92be658abf1d63e22873a3a66 Mon Sep 17 00:00:00 2001 From: Lan Tianyu Date: Mon, 15 Oct 2012 15:38:35 +0800 Subject: usb/xhci: Remove (__force__ __u16) before assigning DeviceRemovable and assign directly. Struct usb_hub_descriptor.ss.DeviceRemovable has been defined as __le16 and (__force__ __u16) doesn't need. Signed-off-by: Lan Tianyu Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 65d416c..a686cf4 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -151,9 +151,8 @@ static void xhci_usb3_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci, if (portsc & PORT_DEV_REMOVE) port_removable |= 1 << (i + 1); } - memset(&desc->u.ss.DeviceRemovable, - (__force __u16) cpu_to_le16(port_removable), - sizeof(__u16)); + + desc->u.ss.DeviceRemovable = cpu_to_le16(port_removable); } static void xhci_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci, -- cgit v0.10.2 From 856c3c5b28597f70068984d036bcee1d342ddb69 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Tue, 16 Oct 2012 00:08:53 -0600 Subject: ARM: OMAP3: PM: apply part of the erratum i582 workaround On OMAP34xx/35xx, and OMAP36xx chips with ES < 1.2, if the PER powerdomain goes to OSWR or OFF while CORE stays at CSWR or ON, or if, upon chip wakeup from OSWR or OFF, the CORE powerdomain goes ON before PER, the UART3/4 FIFOs and McBSP2/3 SIDETONE memories will be unusable. This is erratum i582 in the OMAP36xx Silicon Errata document. This patch implements one of several parts of the workaround: the addition of the wakeup dependency between the PER and WKUP clockdomains, such that PER will wake up at the same time CORE_L3 does. This is not a complete workaround. For it to be complete: 1. the PER powerdomain's next power state must not be set to OSWR or OFF if the CORE powerdomain's next power state is set to CSWR or ON; 2. the UART3/4 FIFO and McBSP2/3 SIDETONE loopback tests should be run if the LASTPOWERSTATEENTERED bits for PER and CORE indicate that PER went OFF while CORE stayed on. If loopback tests fail, then those devices will be unusable until PER and CORE can undergo a transition from ON to OSWR/OFF and back ON. Signed-off-by: Paul Walmsley Cc: Tero Kristo Cc: Kevin Hilman Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h index 686137d..67d6613 100644 --- a/arch/arm/mach-omap2/pm.h +++ b/arch/arm/mach-omap2/pm.h @@ -91,6 +91,7 @@ extern void omap3_save_scratchpad_contents(void); #define PM_RTA_ERRATUM_i608 (1 << 0) #define PM_SDRC_WAKEUP_ERRATUM_i583 (1 << 1) +#define PM_PER_MEMORIES_ERRATUM_i582 (1 << 2) #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) extern u16 pm34xx_errata; diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index ba670db..3a904de 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -652,14 +652,17 @@ static void __init pm_errata_configure(void) /* Enable the l2 cache toggling in sleep logic */ enable_omap3630_toggle_l2_on_restore(); if (omap_rev() < OMAP3630_REV_ES1_2) - pm34xx_errata |= PM_SDRC_WAKEUP_ERRATUM_i583; + pm34xx_errata |= (PM_SDRC_WAKEUP_ERRATUM_i583 | + PM_PER_MEMORIES_ERRATUM_i582); + } else if (cpu_is_omap34xx()) { + pm34xx_errata |= PM_PER_MEMORIES_ERRATUM_i582; } } int __init omap3_pm_init(void) { struct power_state *pwrst, *tmp; - struct clockdomain *neon_clkdm, *mpu_clkdm; + struct clockdomain *neon_clkdm, *mpu_clkdm, *per_clkdm, *wkup_clkdm; int ret; if (!omap3_has_io_chain_ctrl()) @@ -711,6 +714,8 @@ int __init omap3_pm_init(void) neon_clkdm = clkdm_lookup("neon_clkdm"); mpu_clkdm = clkdm_lookup("mpu_clkdm"); + per_clkdm = clkdm_lookup("per_clkdm"); + wkup_clkdm = clkdm_lookup("wkup_clkdm"); #ifdef CONFIG_SUSPEND omap_pm_suspend = omap3_pm_suspend; @@ -727,6 +732,27 @@ int __init omap3_pm_init(void) if (IS_PM34XX_ERRATUM(PM_RTA_ERRATUM_i608)) omap3630_ctrl_disable_rta(); + /* + * The UART3/4 FIFO and the sidetone memory in McBSP2/3 are + * not correctly reset when the PER powerdomain comes back + * from OFF or OSWR when the CORE powerdomain is kept active. + * See OMAP36xx Erratum i582 "PER Domain reset issue after + * Domain-OFF/OSWR Wakeup". This wakeup dependency is not a + * complete workaround. The kernel must also prevent the PER + * powerdomain from going to OSWR/OFF while the CORE + * powerdomain is not going to OSWR/OFF. And if PER last + * power state was off while CORE last power state was ON, the + * UART3/4 and McBSP2/3 SIDETONE devices need to run a + * self-test using their loopback tests; if that fails, those + * devices are unusable until the PER/CORE can complete a transition + * from ON to OSWR/OFF and then back to ON. + * + * XXX Technically this workaround is only needed if off-mode + * or OSWR is enabled. + */ + if (IS_PM34XX_ERRATUM(PM_PER_MEMORIES_ERRATUM_i582)) + clkdm_add_wkdep(per_clkdm, wkup_clkdm); + clkdm_add_wkdep(neon_clkdm, mpu_clkdm); if (omap_type() != OMAP2_DEVICE_TYPE_GP) { omap3_secure_ram_storage = -- cgit v0.10.2 From 44b1d42a60f9daeb0070f7766d11711d1be06a8b Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 15 Oct 2012 15:19:34 -0700 Subject: ARM: OMAP2: UART: fix console UART mismatched runtime PM status The runtime PM framework assumes that the hardware state of devices when initialized is disabled. For all omap_devices, we idle/disable device by default. However, the console uart uses a "no idle" option during omap_device init in order to allow earlyprintk usage to work seamlessly during boot. Because the hardware is left partially enabled after init (whatever the bootloader settings were), the omap_device should later be fully initialized (including mux) and the runtime PM framework should be told that the device is active, and not disabled so that the hardware state is in sync with runtime PM state. To fix, after the device has been created/registered, call omap_device_enable() to finialize init and use pm_runtime_set_active() to tell the runtime PM core the device is enabled. Tested on 2420/n810, 3530/Overo, 3530/Beagle, 3730/OveroSTORM, 3730/Beagle-xM, 4460/PandaES. Suggested-by: Russell King Cc: Felipe Balbi Cc: Sourav Poddar Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 0405c81..a507cd6 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -329,6 +329,11 @@ void __init omap_serial_init_port(struct omap_board_data *bdata, oh->mux = omap_hwmod_mux_init(bdata->pads, bdata->pads_cnt); + if (console_uart_id == bdata->id) { + omap_device_enable(pdev); + pm_runtime_set_active(&pdev->dev); + } + oh->dev_attr = uart; if (((cpu_is_omap34xx() || cpu_is_omap44xx()) && bdata->pads) -- cgit v0.10.2 From eef6fcaa4295168e6eab2cce564ea258155e1bd7 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 18 Oct 2012 11:25:07 +0200 Subject: ARM/dts: omap3: Fix mcbsp2/3 hwmods to be able to probe the drivers for audio Fixes the following errors: [ 2.318084] omap-mcbsp 49022000.mcbsp: invalid rx DMA channel [ 2.324432] omap-mcbsp 49024000.mcbsp: invalid rx DMA channel Which is because we failed to link the sidetone hwmod for McBSP2/3. The missing sidetone hwmod link will prevent omap_device_alloc() to append the DMA resources since we - accidentally - end up having the same number of resources provided from DT (IO/IRQ) as we have in hwmod for the McBSP ports without the ST resources. Signed-off-by: Peter Ujfalusi Acked-by: Benoit Cousson Signed-off-by: Tony Lindgren diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi index f38ea87..696e929 100644 --- a/arch/arm/boot/dts/omap3.dtsi +++ b/arch/arm/boot/dts/omap3.dtsi @@ -257,7 +257,7 @@ interrupt-names = "common", "tx", "rx", "sidetone"; interrupt-parent = <&intc>; ti,buffer-size = <1280>; - ti,hwmods = "mcbsp2"; + ti,hwmods = "mcbsp2", "mcbsp2_sidetone"; }; mcbsp3: mcbsp@49024000 { @@ -272,7 +272,7 @@ interrupt-names = "common", "tx", "rx", "sidetone"; interrupt-parent = <&intc>; ti,buffer-size = <128>; - ti,hwmods = "mcbsp3"; + ti,hwmods = "mcbsp3", "mcbsp3_sidetone"; }; mcbsp4: mcbsp@49026000 { -- cgit v0.10.2 From 24942e8af19e5090374776a57db97b350ffd0fa6 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Mon, 22 Oct 2012 13:29:19 -0700 Subject: ARM: OMAP2+: Fix location of select PINCTRL Commit 8f31cefe (ARM: OMAP2+: select PINCTRL in Kconfig) added select PINCTRL, but accdentally added it to a wrong location. We want to select if for ARCH_OMAP2PLUS, not for ARCH_OMAP2PLUS_TYPICAL. Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index 2a1a898..d669e22 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -11,7 +11,6 @@ config ARCH_OMAP2PLUS_TYPICAL select I2C_OMAP select MENELAUS if ARCH_OMAP2 select NEON if ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5 - select PINCTRL select PM_RUNTIME select REGULATOR select SERIAL_OMAP diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig index 7cd56ed..82fcb20 100644 --- a/arch/arm/plat-omap/Kconfig +++ b/arch/arm/plat-omap/Kconfig @@ -26,6 +26,7 @@ config ARCH_OMAP2PLUS select CLKDEV_LOOKUP select GENERIC_IRQ_CHIP select OMAP_DM_TIMER + select PINCTRL select PROC_DEVICETREE if PROC_FS select SPARSE_IRQ select USE_OF -- cgit v0.10.2 From 1d8643dd0548e8cb9114e53c353b09da016a72fb Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Mon, 22 Oct 2012 13:30:03 -0700 Subject: ARM: OMAP3: Fix 3430 legacy mux names for ssi1 signals. On n900 uart1 pins are not not used for uart, instead they are used to connect to a cell modem over ssi. Looks like we're currently missing these signal names for 3430 for some reason, and only have some of them listed for 3630. Obviously the signals are there for 3430 if n900 is using them and they are documented in some TRMs. Note that these will eventually be replaced by device tree based pinctrl-single.c driver. But for now these are needed to verify the SSI pins for devices like Nokia N900. Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/mux34xx.c b/arch/arm/mach-omap2/mux34xx.c index 17f80e4..c47140b 100644 --- a/arch/arm/mach-omap2/mux34xx.c +++ b/arch/arm/mach-omap2/mux34xx.c @@ -614,16 +614,16 @@ static struct omap_mux __initdata omap3_muxmodes[] = { "sys_off_mode", NULL, NULL, NULL, "gpio_9", NULL, NULL, "safe_mode"), _OMAP3_MUXENTRY(UART1_CTS, 150, - "uart1_cts", NULL, NULL, NULL, + "uart1_cts", "ssi1_rdy_tx", NULL, NULL, "gpio_150", "hsusb3_tll_clk", NULL, "safe_mode"), _OMAP3_MUXENTRY(UART1_RTS, 149, - "uart1_rts", NULL, NULL, NULL, + "uart1_rts", "ssi1_flag_tx", NULL, NULL, "gpio_149", NULL, NULL, "safe_mode"), _OMAP3_MUXENTRY(UART1_RX, 151, - "uart1_rx", NULL, "mcbsp1_clkr", "mcspi4_clk", + "uart1_rx", "ss1_wake_tx", "mcbsp1_clkr", "mcspi4_clk", "gpio_151", NULL, NULL, "safe_mode"), _OMAP3_MUXENTRY(UART1_TX, 148, - "uart1_tx", NULL, NULL, NULL, + "uart1_tx", "ssi1_dat_tx", NULL, NULL, "gpio_148", NULL, NULL, "safe_mode"), _OMAP3_MUXENTRY(UART2_CTS, 144, "uart2_cts", "mcbsp3_dx", "gpt9_pwm_evt", NULL, -- cgit v0.10.2 From c8f2f0db1d0294aaf37e8a85bea9bbc4aaf5c0fe Mon Sep 17 00:00:00 2001 From: Nitin Gupta Date: Wed, 10 Oct 2012 17:42:18 -0700 Subject: staging: zram: Fix handling of incompressible pages Change 130f315a (staging: zram: remove special handle of uncompressed page) introduced a bug in the handling of incompressible pages which resulted in memory allocation failure for such pages. When a page expands on compression, say from 4K to 4K+30, we were trying to do zsmalloc(pool, 4K+30). However, the maximum size which zsmalloc can allocate is PAGE_SIZE (for obvious reasons), so such allocation requests always return failure (0). For a page that has compressed size larger than the original size (this may happen with already compressed or random data), there is no point storing the compressed version as that would take more space and would also require time for decompression when needed again. So, the fix is to store any page, whose compressed size exceeds a threshold (max_zpage_size), as-it-is i.e. without compression. Memory required for storing this uncompressed page can then be requested from zsmalloc which supports PAGE_SIZE sized allocations. Lastly, the fix checks that we do not attempt to "decompress" the page which we stored in the uncompressed form -- we just memcpy() out such pages. Signed-off-by: Nitin Gupta Reported-by: viechweg@gmail.com Reported-by: paerley@gmail.com Reported-by: wu.tommy@gmail.com Acked-by: Minchan Kim Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c index 653b074..6edefde 100644 --- a/drivers/staging/zram/zram_drv.c +++ b/drivers/staging/zram/zram_drv.c @@ -223,8 +223,13 @@ static int zram_bvec_read(struct zram *zram, struct bio_vec *bvec, cmem = zs_map_object(zram->mem_pool, zram->table[index].handle, ZS_MM_RO); - ret = lzo1x_decompress_safe(cmem, zram->table[index].size, + if (zram->table[index].size == PAGE_SIZE) { + memcpy(uncmem, cmem, PAGE_SIZE); + ret = LZO_E_OK; + } else { + ret = lzo1x_decompress_safe(cmem, zram->table[index].size, uncmem, &clen); + } if (is_partial_io(bvec)) { memcpy(user_mem + bvec->bv_offset, uncmem + offset, @@ -342,8 +347,11 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index, goto out; } - if (unlikely(clen > max_zpage_size)) + if (unlikely(clen > max_zpage_size)) { zram_stat_inc(&zram->stats.bad_compress); + src = uncmem; + clen = PAGE_SIZE; + } handle = zs_malloc(zram->mem_pool, clen); if (!handle) { -- cgit v0.10.2 From 00b7dede8bc3881b29f2efbcae1355fc769252ab Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 22 Oct 2012 22:54:30 +0100 Subject: ARM: drop experimental status for hotplug and Thumb2 Both these features have been around for a long time now, and haven't had any recent issues brought up. So lets drop their experimental status. In any case, hotplugis selected by other non-experimental options which then cause a Kconfig warning. Signed-off-by: Russell King diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 73067ef..35a26d4 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1603,8 +1603,8 @@ config NR_CPUS default "4" config HOTPLUG_CPU - bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" - depends on SMP && HOTPLUG && EXPERIMENTAL + bool "Support for hot-pluggable CPUs" + depends on SMP && HOTPLUG help Say Y here to experiment with turning CPUs off and on. CPUs can be controlled through /sys/devices/system/cpu. @@ -1645,8 +1645,8 @@ config HZ default 100 config THUMB2_KERNEL - bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)" - depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL + bool "Compile the kernel in Thumb-2 mode" + depends on CPU_V7 && !CPU_V6 && !CPU_V6K select AEABI select ARM_ASM_UNIFIED select ARM_UNWIND -- cgit v0.10.2 From 23d84ed9c81b6f09c270da00b00e8582fab7ca70 Mon Sep 17 00:00:00 2001 From: Vincent Penquerc'h Date: Tue, 9 Oct 2012 19:40:39 +0100 Subject: staging: omapdrm: fix allocation size for page addresses array Signed-off-by: Rob Clark Signed-off-by: Vincent Penquerc'h Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/omapdrm/omap_gem.c b/drivers/staging/omapdrm/omap_gem.c index 3434e6e..66e2c2f 100644 --- a/drivers/staging/omapdrm/omap_gem.c +++ b/drivers/staging/omapdrm/omap_gem.c @@ -246,7 +246,7 @@ static int omap_gem_attach_pages(struct drm_gem_object *obj) * DSS, GPU, etc. are not cache coherent: */ if (omap_obj->flags & (OMAP_BO_WC|OMAP_BO_UNCACHED)) { - addrs = kmalloc(npages * sizeof(addrs), GFP_KERNEL); + addrs = kmalloc(npages * sizeof(*addrs), GFP_KERNEL); if (!addrs) { ret = -ENOMEM; goto free_pages; @@ -257,7 +257,7 @@ static int omap_gem_attach_pages(struct drm_gem_object *obj) 0, PAGE_SIZE, DMA_BIDIRECTIONAL); } } else { - addrs = kzalloc(npages * sizeof(addrs), GFP_KERNEL); + addrs = kzalloc(npages * sizeof(*addrs), GFP_KERNEL); if (!addrs) { ret = -ENOMEM; goto free_pages; -- cgit v0.10.2 From b3ca610a22c6f4708783b918ddbc22f4cb74589f Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Thu, 11 Oct 2012 09:34:11 -0700 Subject: staging: ramster: depends on NET ramster uses network interfaces that are only present when CONFIG_NET is enabled, so it should depend on NET. Fixes these build errors: drivers/built-in.o: In function `sc_kref_release': tcp.c:(.text+0x24b9af): undefined reference to `sock_release' drivers/built-in.o: In function `r2net_open_listening_sock': tcp.c:(.text+0x24ca2b): undefined reference to `sock_create' tcp.c:(.text+0x24cb91): undefined reference to `sock_release' drivers/built-in.o: In function `r2net_recv_tcp_msg': tcp.c:(.text+0x24cdbd): undefined reference to `sock_recvmsg' drivers/built-in.o: In function `r2net_send_tcp_msg': tcp.c:(.text+0x24d341): undefined reference to `sock_sendmsg' drivers/built-in.o: In function `r2net_start_connect': tcp.c:(.text+0x24d8fa): undefined reference to `sock_create' drivers/built-in.o: In function `r2net_shutdown_sc': tcp.c:(.text+0x24e30c): undefined reference to `kernel_sock_shutdown' drivers/built-in.o: In function `r2net_accept_one': tcp.c:(.text+0x24f392): undefined reference to `sock_create_lite' tcp.c:(.text+0x24f3c3): undefined reference to `sock_release' drivers/built-in.o: In function `r2net_stop_listening': (.text+0x250f63): undefined reference to `sock_release' Signed-off-by: Randy Dunlap Cc: konrad.wilk@oracle.com Acked-by: Dan Magenheimer Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/ramster/Kconfig b/drivers/staging/ramster/Kconfig index 843c541..3abf661 100644 --- a/drivers/staging/ramster/Kconfig +++ b/drivers/staging/ramster/Kconfig @@ -18,6 +18,7 @@ config ZCACHE2 config RAMSTER bool "Cross-machine RAM capacity sharing, aka peer-to-peer tmem" depends on CONFIGFS_FS=y && SYSFS=y && !HIGHMEM && ZCACHE2=y + depends on NET # must ensure struct page is 8-byte aligned select HAVE_ALIGNED_STRUCT_PAGE if !64_BIT default n -- cgit v0.10.2 From 2978af545b9a1ed221e23fb24ae4559bec6ad70d Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Tue, 23 Oct 2012 00:53:58 +0200 Subject: ACPI: Fix memory leak in acpi_bind_one() Memory is allocated with kzalloc() and assigned to 'physical_node'. Then 'physical_node->node_id' is initialized with a call to 'find_first_zero_bit()', if that results in a value greater than ACPI_MAX_PHYSICAL_NODE we'll end up jumping to the 'err:' label and there leave the function and let 'physical_node' go out of scope and leak the memory we allocated. This patch fixes the leak by simply freeing the unused/unneeded memory pointed to by 'physical_node' just before we jump to 'err:'. [rjw: The problem has been introduced by commit 1033f90 (ACPI: Allow ACPI binding with USB-3.0 hub), which is new in 3.7-rc.] Signed-off-by: Jesper Juhl Reviewed-by: Toshi Kani Reviewed-by: Yasuaki Ishimatsu Acked-by: David Rientjes Signed-off-by: Rafael J. Wysocki diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index d1a2d74..0837308 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -159,6 +159,7 @@ static int acpi_bind_one(struct device *dev, acpi_handle handle) if (physical_node->node_id >= ACPI_MAX_PHYSICAL_NODE) { retval = -ENOSPC; mutex_unlock(&acpi_dev->physical_node_lock); + kfree(physical_node); goto err; } -- cgit v0.10.2 From debe081aaa4d247b9957ac2336d84deab32d9909 Mon Sep 17 00:00:00 2001 From: "jhbird.choi@samsung.com" Date: Tue, 23 Oct 2012 00:54:38 +0200 Subject: PM / Domains: Fix memory leak on error path in pm_genpd_attach_cpuidle If pm_genpd_attach_cpudidle failed we leak memory stored in 'cpu_data'. Signed-off-by: Jonghwan Choi Signed-off-by: Rafael J. Wysocki diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index c22b869..96b71b6 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -1862,7 +1862,7 @@ int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state) cpuidle_drv = cpuidle_driver_ref(); if (!cpuidle_drv) { ret = -ENODEV; - goto out; + goto err_drv; } if (cpuidle_drv->state_count <= state) { ret = -EINVAL; @@ -1884,6 +1884,9 @@ int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state) err: cpuidle_driver_unref(); + + err_drv: + kfree(cpu_data); goto out; } -- cgit v0.10.2 From e4df1cbcc1f329e53a1fff7450b2229e0addff20 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Tue, 23 Oct 2012 00:55:10 +0200 Subject: cpufreq / powernow-k8: Remove usage of smp_processor_id() in preemptible code Commit 6889125b8b4e09c5e53e6ecab3433bed1ce198c9 (cpufreq/powernow-k8: workqueue user shouldn't migrate the kworker to another CPU) causes powernow-k8 to trigger a preempt warning, e.g.: BUG: using smp_processor_id() in preemptible [00000000] code: cpufreq/3776 caller is powernowk8_target+0x20/0x49 Pid: 3776, comm: cpufreq Not tainted 3.6.0 #9 Call Trace: [] debug_smp_processor_id+0xc7/0xe0 [] powernowk8_target+0x20/0x49 [] __cpufreq_driver_target+0x82/0x8a [] cpufreq_governor_performance+0x4e/0x54 [] __cpufreq_governor+0x8c/0xc9 [] __cpufreq_set_policy+0x1a9/0x21e [] store_scaling_governor+0x16f/0x19b [] ? cpufreq_update_policy+0x124/0x124 [] ? _raw_spin_unlock_irqrestore+0x2c/0x49 [] store+0x60/0x88 [] sysfs_write_file+0xf4/0x130 [] vfs_write+0xb5/0x151 [] sys_write+0x4a/0x71 [] system_call_fastpath+0x16/0x1b Fix this by by always using work_on_cpu(). Signed-off-by: Andreas Herrmann Cc: stable@vger.kernel.org Signed-off-by: Rafael J. Wysocki diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c index 129e80b..c16a3a5 100644 --- a/drivers/cpufreq/powernow-k8.c +++ b/drivers/cpufreq/powernow-k8.c @@ -1052,14 +1052,7 @@ static int powernowk8_target(struct cpufreq_policy *pol, struct powernowk8_target_arg pta = { .pol = pol, .targfreq = targfreq, .relation = relation }; - /* - * Must run on @pol->cpu. cpufreq core is responsible for ensuring - * that we're bound to the current CPU and pol->cpu stays online. - */ - if (smp_processor_id() == pol->cpu) - return powernowk8_target_fn(&pta); - else - return work_on_cpu(pol->cpu, powernowk8_target_fn, &pta); + return work_on_cpu(pol->cpu, powernowk8_target_fn, &pta); } /* Driver entry point to verify the policy and range of frequencies */ -- cgit v0.10.2 From 65bf7ca0005d7d827596d5df28583c83c9158da6 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 22 Oct 2012 11:08:27 -0700 Subject: ARM: OMAP3: Beagle: fix OPP customization and initcall ordering After commit 24d7b40a60cf19008334bcbcbd98da374d4d9c64 (ARM: OMAP2+: PM: MPU DVFS: use generic CPU device for MPU-SS), OPPs are registered using an existing CPU device, not the omap_device for MPU-SS. First, fix the board file to use get_cpu_device() as required by the above commit, otherwise custom OPPs will be added to the wrong device. Second, the board files OPP init is called from the its init_machine method, and the generic CPU devices are not yet created when init_machine is run. Therefore OPP initialization will fail. To fix, use a device_initcall() for the board file's OPP customization, and make the device_initcall board-specific by using a machine_is check. Reported-by: Paul Walmsley Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index 388c431..d41ab98 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -444,27 +445,31 @@ static struct omap_board_mux board_mux[] __initdata = { }; #endif -static void __init beagle_opp_init(void) +static int __init beagle_opp_init(void) { int r = 0; - /* Initialize the omap3 opp table */ - if (omap3_opp_init()) { + if (!machine_is_omap3_beagle()) + return 0; + + /* Initialize the omap3 opp table if not already created. */ + r = omap3_opp_init(); + if (IS_ERR_VALUE(r) && (r != -EEXIST)) { pr_err("%s: opp default init failed\n", __func__); - return; + return r; } /* Custom OPP enabled for all xM versions */ if (cpu_is_omap3630()) { struct device *mpu_dev, *iva_dev; - mpu_dev = omap_device_get_by_hwmod_name("mpu"); + mpu_dev = get_cpu_device(0); iva_dev = omap_device_get_by_hwmod_name("iva"); if (IS_ERR(mpu_dev) || IS_ERR(iva_dev)) { pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n", __func__, mpu_dev, iva_dev); - return; + return -ENODEV; } /* Enable MPU 1GHz and lower opps */ r = opp_enable(mpu_dev, 800000000); @@ -484,8 +489,9 @@ static void __init beagle_opp_init(void) opp_disable(iva_dev, 660000000); } } - return; + return 0; } +device_initcall(beagle_opp_init); static void __init omap3_beagle_init(void) { @@ -522,8 +528,6 @@ static void __init omap3_beagle_init(void) /* Ensure SDRC pins are mux'd for self-refresh */ omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT); omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT); - - beagle_opp_init(); } MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board") -- cgit v0.10.2 From e37736777254ce1abc85493a5cacbefe5983b896 Mon Sep 17 00:00:00 2001 From: "Tu, Xiaobing" Date: Tue, 23 Oct 2012 01:03:00 +0200 Subject: Fix memory leak in cpufreq stats. When system enters sleep, non-boot CPUs will be disabled. Cpufreq stats sysfs is created when the CPU is up, but it is not freed when the CPU is going down. This will cause memory leak. Signed-off-by: xiaobing tu Signed-off-by: guifang tang Signed-off-by: Rafael J. Wysocki diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c index b40ee14..3998316 100644 --- a/drivers/cpufreq/cpufreq_stats.c +++ b/drivers/cpufreq/cpufreq_stats.c @@ -328,6 +328,7 @@ static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb, cpufreq_update_policy(cpu); break; case CPU_DOWN_PREPARE: + case CPU_DOWN_PREPARE_FROZEN: cpufreq_stats_free_sysfs(cpu); break; case CPU_DEAD: -- cgit v0.10.2 From e408a9ff3c7c371d0e2a47a9eb8fa3de48fea30d Mon Sep 17 00:00:00 2001 From: Veaceslav Falico Date: Mon, 22 Oct 2012 04:43:23 +0000 Subject: pch_gbe: create functions for MAC_RX {en,dis}able Move MAC_RX-related bits into separate functions. Signed-off-by: Veaceslav Falico Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c index b2a94d0..d5190bf 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c @@ -420,6 +420,22 @@ static void pch_gbe_mac_reset_rx(struct pch_gbe_hw *hw) return; } +static void pch_gbe_disable_mac_rx(struct pch_gbe_hw *hw) +{ + u32 rctl; + /* Disables Receive MAC */ + rctl = ioread32(&hw->reg->MAC_RX_EN); + iowrite32((rctl & ~PCH_GBE_MRE_MAC_RX_EN), &hw->reg->MAC_RX_EN); +} + +static void pch_gbe_enable_mac_rx(struct pch_gbe_hw *hw) +{ + u32 rctl; + /* Enables Receive MAC */ + rctl = ioread32(&hw->reg->MAC_RX_EN); + iowrite32((rctl | PCH_GBE_MRE_MAC_RX_EN), &hw->reg->MAC_RX_EN); +} + /** * pch_gbe_mac_init_rx_addrs - Initialize receive address's * @hw: Pointer to the HW structure @@ -913,7 +929,7 @@ static void pch_gbe_setup_rctl(struct pch_gbe_adapter *adapter) static void pch_gbe_configure_rx(struct pch_gbe_adapter *adapter) { struct pch_gbe_hw *hw = &adapter->hw; - u32 rdba, rdlen, rctl, rxdma; + u32 rdba, rdlen, rxdma; pr_debug("dma adr = 0x%08llx size = 0x%08x\n", (unsigned long long)adapter->rx_ring->dma, @@ -921,9 +937,7 @@ static void pch_gbe_configure_rx(struct pch_gbe_adapter *adapter) pch_gbe_mac_force_mac_fc(hw); - /* Disables Receive MAC */ - rctl = ioread32(&hw->reg->MAC_RX_EN); - iowrite32((rctl & ~PCH_GBE_MRE_MAC_RX_EN), &hw->reg->MAC_RX_EN); + pch_gbe_disable_mac_rx(hw); /* Disables Receive DMA */ rxdma = ioread32(&hw->reg->DMA_CTRL); @@ -1355,8 +1369,8 @@ static void pch_gbe_start_receive(struct pch_gbe_hw *hw) rxdma = ioread32(&hw->reg->DMA_CTRL); rxdma |= PCH_GBE_RX_DMA_EN; iowrite32(rxdma, &hw->reg->DMA_CTRL); - /* Enables Receive */ - iowrite32(PCH_GBE_MRE_MAC_RX_EN, &hw->reg->MAC_RX_EN); + + pch_gbe_enable_mac_rx(hw); return; } -- cgit v0.10.2 From 9c0314e111a540620441b27aeedb55f572f812f5 Mon Sep 17 00:00:00 2001 From: Veaceslav Falico Date: Mon, 22 Oct 2012 04:43:24 +0000 Subject: pch_gbe: don't re-set RX_FIFO_ERR flag in napi_poll If we were in RX_FIFO_ERR state and entered pch_gbe_napi_poll(), we'll anyway clean some rx space and thus can continue to receive more packets. Currently, we re-set the RX_FIFO_ERR in situations when we've exhausted our budget for RX cleaning or cleaned some TX packets. Removing it gives us +20%-40% speed increase and a lot less of RX_FIFO_ERRors reported. Signed-off-by: Veaceslav Falico Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c index d5190bf..4ffad78 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c @@ -2419,7 +2419,6 @@ static int pch_gbe_napi_poll(struct napi_struct *napi, int budget) int work_done = 0; bool poll_end_flag = false; bool cleaned = false; - u32 int_en; pr_debug("budget : %d\n", budget); @@ -2436,19 +2435,13 @@ static int pch_gbe_napi_poll(struct napi_struct *napi, int budget) if (poll_end_flag) { napi_complete(napi); - if (adapter->rx_stop_flag) { - adapter->rx_stop_flag = false; - pch_gbe_start_receive(&adapter->hw); - } pch_gbe_irq_enable(adapter); - } else - if (adapter->rx_stop_flag) { - adapter->rx_stop_flag = false; - pch_gbe_start_receive(&adapter->hw); - int_en = ioread32(&adapter->hw.reg->INT_EN); - iowrite32((int_en | PCH_GBE_INT_RX_FIFO_ERR), - &adapter->hw.reg->INT_EN); - } + } + + if (adapter->rx_stop_flag) { + adapter->rx_stop_flag = false; + pch_gbe_start_receive(&adapter->hw); + } pr_debug("poll_end_flag : %d work_done : %d budget : %d\n", poll_end_flag, work_done, budget); -- cgit v0.10.2 From a35279f002c5843c2b2faaa4538963c8eb18446c Mon Sep 17 00:00:00 2001 From: Veaceslav Falico Date: Mon, 22 Oct 2012 04:43:25 +0000 Subject: pch_gbe: don't reset MAC_RX on FIFO overflow Currently, when FIFO_ERR happens, we stop the dma, wait for it to become idle and then reset the whole MAC_RX logic (and after that we must re-set multicast addresses and also re-enable MAC_RX when we're finally ready to accept new packets). This leads to CRC errors on high number of incoming packets and is not needed according to the datasheet. This patch fixes it by the following steps: 1) remove this reset in pch_gbe_stop_receive(), which causes some functions to not be used anywhere 2) remove already unused functions pch_gbe_wait_clr_bit_irq() and pch_gbe_mac_reset_rx() to correctly build 3) move pch_gbe_enable_mac_rx() out of pch_gbe_start_receive() to pch_gbe_up() where it's only needed after we've removed the MAC_RX reset 4) rename pch_gbe_start/stop_receive() to pch_gbe_enable/disable_dma_rx() to more precisely reflect what the functions are now doing. After these changes we already don't see the CRC errors and gain some increase in RX processing speed. Signed-off-by: Veaceslav Falico Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c index 4ffad78..a8854d0 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c @@ -339,26 +339,6 @@ static void pch_gbe_wait_clr_bit(void *reg, u32 bit) } /** - * pch_gbe_wait_clr_bit_irq - Wait to clear a bit for interrupt context - * @reg: Pointer of register - * @busy: Busy bit - */ -static int pch_gbe_wait_clr_bit_irq(void *reg, u32 bit) -{ - u32 tmp; - int ret = -1; - /* wait busy */ - tmp = 20; - while ((ioread32(reg) & bit) && --tmp) - udelay(5); - if (!tmp) - pr_err("Error: busy bit is not cleared\n"); - else - ret = 0; - return ret; -} - -/** * pch_gbe_mac_mar_set - Set MAC address register * @hw: Pointer to the HW structure * @addr: Pointer to the MAC address @@ -409,17 +389,6 @@ static void pch_gbe_mac_reset_hw(struct pch_gbe_hw *hw) return; } -static void pch_gbe_mac_reset_rx(struct pch_gbe_hw *hw) -{ - /* Read the MAC addresses. and store to the private data */ - pch_gbe_mac_read_mac_addr(hw); - iowrite32(PCH_GBE_RX_RST, &hw->reg->RESET); - pch_gbe_wait_clr_bit_irq(&hw->reg->RESET, PCH_GBE_RX_RST); - /* Setup the MAC addresses */ - pch_gbe_mac_mar_set(hw, hw->mac.addr, 0); - return; -} - static void pch_gbe_disable_mac_rx(struct pch_gbe_hw *hw) { u32 rctl; @@ -1330,38 +1299,17 @@ void pch_gbe_update_stats(struct pch_gbe_adapter *adapter) spin_unlock_irqrestore(&adapter->stats_lock, flags); } -static void pch_gbe_stop_receive(struct pch_gbe_adapter *adapter) +static void pch_gbe_disable_dma_rx(struct pch_gbe_hw *hw) { - struct pch_gbe_hw *hw = &adapter->hw; u32 rxdma; - u16 value; - int ret; /* Disable Receive DMA */ rxdma = ioread32(&hw->reg->DMA_CTRL); rxdma &= ~PCH_GBE_RX_DMA_EN; iowrite32(rxdma, &hw->reg->DMA_CTRL); - /* Wait Rx DMA BUS is IDLE */ - ret = pch_gbe_wait_clr_bit_irq(&hw->reg->RX_DMA_ST, PCH_GBE_IDLE_CHECK); - if (ret) { - /* Disable Bus master */ - pci_read_config_word(adapter->pdev, PCI_COMMAND, &value); - value &= ~PCI_COMMAND_MASTER; - pci_write_config_word(adapter->pdev, PCI_COMMAND, value); - /* Stop Receive */ - pch_gbe_mac_reset_rx(hw); - /* Enable Bus master */ - value |= PCI_COMMAND_MASTER; - pci_write_config_word(adapter->pdev, PCI_COMMAND, value); - } else { - /* Stop Receive */ - pch_gbe_mac_reset_rx(hw); - } - /* reprogram multicast address register after reset */ - pch_gbe_set_multi(adapter->netdev); } -static void pch_gbe_start_receive(struct pch_gbe_hw *hw) +static void pch_gbe_enable_dma_rx(struct pch_gbe_hw *hw) { u32 rxdma; @@ -1369,9 +1317,6 @@ static void pch_gbe_start_receive(struct pch_gbe_hw *hw) rxdma = ioread32(&hw->reg->DMA_CTRL); rxdma |= PCH_GBE_RX_DMA_EN; iowrite32(rxdma, &hw->reg->DMA_CTRL); - - pch_gbe_enable_mac_rx(hw); - return; } /** @@ -1407,7 +1352,7 @@ static irqreturn_t pch_gbe_intr(int irq, void *data) int_en = ioread32(&hw->reg->INT_EN); iowrite32((int_en & ~PCH_GBE_INT_RX_FIFO_ERR), &hw->reg->INT_EN); - pch_gbe_stop_receive(adapter); + pch_gbe_disable_dma_rx(&adapter->hw); int_st |= ioread32(&hw->reg->INT_ST); int_st = int_st & ioread32(&hw->reg->INT_EN); } @@ -2014,7 +1959,8 @@ int pch_gbe_up(struct pch_gbe_adapter *adapter) pch_gbe_alloc_tx_buffers(adapter, tx_ring); pch_gbe_alloc_rx_buffers(adapter, rx_ring, rx_ring->count); adapter->tx_queue_len = netdev->tx_queue_len; - pch_gbe_start_receive(&adapter->hw); + pch_gbe_enable_dma_rx(&adapter->hw); + pch_gbe_enable_mac_rx(&adapter->hw); mod_timer(&adapter->watchdog_timer, jiffies); @@ -2440,7 +2386,7 @@ static int pch_gbe_napi_poll(struct napi_struct *napi, int budget) if (adapter->rx_stop_flag) { adapter->rx_stop_flag = false; - pch_gbe_start_receive(&adapter->hw); + pch_gbe_enable_dma_rx(&adapter->hw); } pr_debug("poll_end_flag : %d work_done : %d budget : %d\n", -- cgit v0.10.2 From 0b63bf1fe6f9ed1ec4148e8896f4522e08476b80 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Thu, 18 Oct 2012 22:11:38 +0200 Subject: MAINTAINERS: NETWORKING DRIVERS matches too much File pattern include/linux/*device.h matches too much, including completely unrelated files. Replace it with an explicit list of network device-related header files. Signed-off-by: Jean Delvare Cc: Joe Perches Acked-by: David S. Miller Signed-off-by: David S. Miller diff --git a/MAINTAINERS b/MAINTAINERS index 41c5349..8184adb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5060,7 +5060,13 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git S: Odd Fixes F: drivers/net/ F: include/linux/if_* -F: include/linux/*device.h +F: include/linux/netdevice.h +F: include/linux/arcdevice.h +F: include/linux/etherdevice.h +F: include/linux/fcdevice.h +F: include/linux/fddidevice.h +F: include/linux/hippidevice.h +F: include/linux/inetdevice.h NETXEN (1/10) GbE SUPPORT M: Sony Chacko -- cgit v0.10.2 From ca749b2a2e72b39b3a46d1e4d096e338bf714a3c Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Wed, 17 Oct 2012 22:17:35 +0200 Subject: usb: musb: dsps: fix res_name length The res_name is used for the name construction of a DT property as follows: sprintf(res_name, "port%d-mode", id); Hence, res_name must be at least 11 characters long in order to store the name including the terminating '\0'. While at it, use to snprintf() rather than sprintf() when accessing this buffer. Reported-by: David Binderman Signed-off-by: Daniel Mack Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 444346e..ff5f112 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -458,11 +458,11 @@ static int __devinit dsps_create_musb_pdev(struct dsps_glue *glue, u8 id) struct platform_device *musb; struct resource *res; struct resource resources[2]; - char res_name[10]; + char res_name[11]; int ret, musbid; /* get memory resource */ - sprintf(res_name, "musb%d", id); + snprintf(res_name, sizeof(res_name), "musb%d", id); res = platform_get_resource_byname(pdev, IORESOURCE_MEM, res_name); if (!res) { dev_err(dev, "%s get mem resource failed\n", res_name); @@ -473,7 +473,7 @@ static int __devinit dsps_create_musb_pdev(struct dsps_glue *glue, u8 id) resources[0] = *res; /* get irq resource */ - sprintf(res_name, "musb%d-irq", id); + snprintf(res_name, sizeof(res_name), "musb%d-irq", id); res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, res_name); if (!res) { dev_err(dev, "%s get irq resource failed\n", res_name); @@ -530,7 +530,7 @@ static int __devinit dsps_create_musb_pdev(struct dsps_glue *glue, u8 id) of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps); of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits); - sprintf(res_name, "port%d-mode", id); + snprintf(res_name, sizeof(res_name), "port%d-mode", id); of_property_read_u32(np, res_name, (u32 *)&pdata->mode); of_property_read_u32(np, "power", (u32 *)&pdata->power); config->multipoint = of_property_read_bool(np, "multipoint"); -- cgit v0.10.2 From 000b7f5127900f695668191353a3291832c1914e Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 22 Oct 2012 13:51:11 +0800 Subject: usb: gadget: net2272: fix missing unlock on error in net2272_irq() Add the missing unlock on the error handle path in function net2272_irq(). Signed-off-by: Wei Yongjun Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/net2272.c b/drivers/usb/gadget/net2272.c index 43ac748..c009263 100644 --- a/drivers/usb/gadget/net2272.c +++ b/drivers/usb/gadget/net2272.c @@ -2069,8 +2069,10 @@ static irqreturn_t net2272_irq(int irq, void *_dev) #if defined(PLX_PCI_RDK2) /* see if PCI int for us by checking irqstat */ intcsr = readl(dev->rdk2.fpga_base_addr + RDK2_IRQSTAT); - if (!intcsr & (1 << NET2272_PCI_IRQ)) + if (!intcsr & (1 << NET2272_PCI_IRQ)) { + spin_unlock(&dev->lock); return IRQ_NONE; + } /* check dma interrupts */ #endif /* Platform/devcice interrupt handler */ -- cgit v0.10.2 From 37561f68bd527ec39076e32effdc7b1dcdfb17ea Mon Sep 17 00:00:00 2001 From: Jerry Chu Date: Mon, 22 Oct 2012 11:26:36 +0000 Subject: tcp: Reject invalid ack_seq to Fast Open sockets A packet with an invalid ack_seq may cause a TCP Fast Open socket to switch to the unexpected TCP_CLOSING state, triggering a BUG_ON kernel panic. When a FIN packet with an invalid ack_seq# arrives at a socket in the TCP_FIN_WAIT1 state, rather than discarding the packet, the current code will accept the FIN, causing state transition to TCP_CLOSING. This may be a small deviation from RFC793, which seems to say that the packet should be dropped. Unfortunately I did not expect this case for Fast Open hence it will trigger a BUG_ON panic. It turns out there is really nothing bad about a TFO socket going into TCP_CLOSING state so I could just remove the BUG_ON statements. But after some thought I think it's better to treat this case like TCP_SYN_RECV and return a RST to the confused peer who caused the unacceptable ack_seq to be generated in the first place. Signed-off-by: H.K. Jerry Chu Cc: Neal Cardwell Cc: Yuchung Cheng Acked-by: Yuchung Cheng Acked-by: Eric Dumazet Acked-by: Neal Cardwell Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 036f857..1db6639 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -5964,7 +5964,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb, req = tp->fastopen_rsk; if (req != NULL) { - BUG_ON(sk->sk_state != TCP_SYN_RECV && + WARN_ON_ONCE(sk->sk_state != TCP_SYN_RECV && sk->sk_state != TCP_FIN_WAIT1); if (tcp_check_req(sk, skb, req, NULL, true) == NULL) @@ -6053,7 +6053,15 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb, * ACK we have received, this would have acknowledged * our SYNACK so stop the SYNACK timer. */ - if (acceptable && req != NULL) { + if (req != NULL) { + /* Return RST if ack_seq is invalid. + * Note that RFC793 only says to generate a + * DUPACK for it but for TCP Fast Open it seems + * better to treat this case like TCP_SYN_RECV + * above. + */ + if (!acceptable) + return 1; /* We no longer need the request sock. */ reqsk_fastopen_remove(sk, req, false); tcp_rearm_rto(sk); diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index fc04711..d47c1b4 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -347,8 +347,8 @@ void tcp_retransmit_timer(struct sock *sk) return; } if (tp->fastopen_rsk) { - BUG_ON(sk->sk_state != TCP_SYN_RECV && - sk->sk_state != TCP_FIN_WAIT1); + WARN_ON_ONCE(sk->sk_state != TCP_SYN_RECV && + sk->sk_state != TCP_FIN_WAIT1); tcp_fastopen_synack_timer(sk); /* Before we receive ACK to our SYN-ACK don't retransmit * anything else (e.g., data or FIN segments). -- cgit v0.10.2 From 4f053a24eca933ec10ce68eef61d38d179f34e50 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 16 Oct 2012 23:31:33 -0700 Subject: usb: renesas_usbhs: fixup: avoid NULL access on error case pipe detach If renesas_usbhs or DMAEngine interrupt didn't happen by a certain cause, urb->ep will be NULL by usb time out. Then, host mode will access to it and crash kernel. This patch fixes it. Signed-off-by: Kuninori Morimoto Signed-off-by: Felipe Balbi diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c index 9b69a13..069cd76 100644 --- a/drivers/usb/renesas_usbhs/mod_host.c +++ b/drivers/usb/renesas_usbhs/mod_host.c @@ -334,6 +334,11 @@ static void usbhsh_pipe_detach(struct usbhsh_hpriv *hpriv, struct device *dev = usbhs_priv_to_dev(priv); unsigned long flags; + if (unlikely(!uep)) { + dev_err(dev, "no uep\n"); + return; + } + /******************** spin lock ********************/ usbhs_lock(priv, flags); -- cgit v0.10.2 From 1cb60156defa4f23d5318ea1ddd400f25b2d0ce5 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 16 Oct 2012 23:33:30 -0700 Subject: usb: renesas_usbhs: fixup dma transfer stall renesas_usbhs driver can switch DMA/PIO transfer by using handler, and each handler have push/pop direction. But unfortunately, current dma push handler didn't a path which calls usbhs_pipe_enable(). Thus, dma transfer never happened. this patch fixes it. Signed-off-by: Kuninori Morimoto Signed-off-by: Felipe Balbi diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index 143c4e9..c021b20 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -795,6 +795,7 @@ static void xfer_work(struct work_struct *work) dev_dbg(dev, " %s %d (%d/ %d)\n", fifo->name, usbhs_pipe_number(pipe), pkt->length, pkt->zero); + usbhs_pipe_enable(pipe); usbhsf_dma_start(pipe, fifo); dma_async_issue_pending(chan); } -- cgit v0.10.2 From 0dc77b6dabec8fd298392018cc0de5214af2dc43 Mon Sep 17 00:00:00 2001 From: Peter Huewe Date: Mon, 24 Sep 2012 15:32:31 +0900 Subject: extcon: Unregister compat class at module unload to fix oops If you compile extcon with CONFIG_ANDROID and then load and unload the module you get a simple oops as the driver does not unregister its compat class and thus cannot register it again. Full trace: root@(none):~# modprobe extcon_class root@(none):~# rmmod extcon_class root@(none):~# modprobe extcon_class ------------[ cut here ]------------ WARNING: at fs/sysfs/dir.c:536 sysfs_add_one+0xde/0x100() sysfs: cannot create duplicate filename '/class/switch' Modules linked in: extcon_class(+) [last unloaded: extcon_class] Call Trace: 9f451a00: [<602a58bc>] printk+0x0/0xa8 9f451a18: [<60039b43>] warn_slowpath_common+0x93/0xd0 9f451a28: [<6012c6de>] sysfs_add_one+0xde/0x100 9f451a50: [<601d3d90>] strcat+0x0/0x40 9f451a68: [<60039cdc>] warn_slowpath_fmt+0x9c/0xa0 9f451a90: [<6002fe32>] unblock_signals+0x0/0x84 9f451ab0: [<60039c40>] warn_slowpath_fmt+0x0/0xa0 9f451ac0: [<6002fe32>] unblock_signals+0x0/0x84 9f451ae8: [<6012bd97>] sysfs_pathname.isra.10+0x57/0x70 9f451b00: [<601d3d90>] strcat+0x0/0x40 9f451b18: [<6012bd97>] sysfs_pathname.isra.10+0x57/0x70 9f451b48: [<6012c6de>] sysfs_add_one+0xde/0x100 9f451b78: [<6012c96f>] create_dir+0x8f/0x100 9f451bc0: [] extcon_class_init+0x0/0x12 [extcon_class] 9f451bd8: [<6012cda6>] sysfs_create_dir+0xa6/0x1c0 9f451be8: [<601d89f1>] kvasprintf+0x81/0xa0 9f451bf8: [<601cf0f0>] kobject_get+0x0/0x50 9f451c18: [<601cf396>] kobject_add_internal+0x96/0x280 9f451c60: [] extcon_class_init+0x0/0x12 [extcon_class] 9f451c78: [<601cfb93>] kobject_add+0xd3/0x140 9f451cc0: [<601cfac0>] kobject_add+0x0/0x140 9f451cd0: [<6002fe32>] unblock_signals+0x0/0x84 9f451cf8: [<6002fffc>] set_signals+0x29/0x3f 9f451d28: [<600c1de1>] kmem_cache_alloc+0xe1/0x100 9f451d78: [<601cffa0>] kobject_create_and_add+0x50/0xa0 9f451da8: [<601fbe76>] class_compat_register+0x56/0x80 9f451dc8: [] create_extcon_class+0x88/0xd0 [extcon_class] 9f451de8: [] extcon_class_init+0x10/0x12 [extcon_class] 9f451df8: [<600189a8>] do_one_initcall+0x48/0x1f0 9f451e20: [<60061920>] blocking_notifier_call_chain+0x0/0x20 9f451e30: [<60061920>] blocking_notifier_call_chain+0x0/0x20 9f451e58: [<6007e3c3>] sys_init_module+0xa3/0x280 9f451e88: [<6001e2ad>] handle_syscall+0x8d/0x90 9f451ea8: [<60033370>] userspace+0x405/0x531 9f451ee8: [<6001e380>] copy_chunk_to_user+0x0/0x40 9f451ef8: [<6001e5cd>] do_op_one_page+0x14d/0x220 9f451fd8: [<6001a355>] fork_handler+0x95/0xa0 ---[ end trace dd512cc03fe1c367 ]--- ------------[ cut here ]------------ WARNING: at lib/kobject.c:196 kobject_add_internal+0x26e/0x280() kobject_add_internal failed for switch with -EEXIST, don't try to register things with the same name in the same directory. Modules linked in: extcon_class(+) [last unloaded: extcon_class] Call Trace: 9f451ad0: [<602a58bc>] printk+0x0/0xa8 9f451ae8: [<60039b43>] warn_slowpath_common+0x93/0xd0 9f451af8: [<601cf56e>] kobject_add_internal+0x26e/0x280 9f451b18: [<601cf140>] kobject_put+0x0/0x70 9f451b20: [] extcon_class_init+0x0/0x12 [extcon_class] 9f451b38: [<60039cdc>] warn_slowpath_fmt+0x9c/0xa0 9f451b88: [<60039c40>] warn_slowpath_fmt+0x0/0xa0 9f451bc0: [] extcon_class_init+0x0/0x12 [extcon_class] 9f451bd8: [<6012cda6>] sysfs_create_dir+0xa6/0x1c0 9f451be8: [<601d89f1>] kvasprintf+0x81/0xa0 9f451bf8: [<601cf0f0>] kobject_get+0x0/0x50 9f451c18: [<601cf56e>] kobject_add_internal+0x26e/0x280 9f451c60: [] extcon_class_init+0x0/0x12 [extcon_class] 9f451c78: [<601cfb93>] kobject_add+0xd3/0x140 9f451cc0: [<601cfac0>] kobject_add+0x0/0x140 9f451cd0: [<6002fe32>] unblock_signals+0x0/0x84 9f451cf8: [<6002fffc>] set_signals+0x29/0x3f 9f451d28: [<600c1de1>] kmem_cache_alloc+0xe1/0x100 9f451d78: [<601cffa0>] kobject_create_and_add+0x50/0xa0 9f451da8: [<601fbe76>] class_compat_register+0x56/0x80 9f451dc8: [] create_extcon_class+0x88/0xd0 [extcon_class] 9f451de8: [] extcon_class_init+0x10/0x12 [extcon_class] 9f451df8: [<600189a8>] do_one_initcall+0x48/0x1f0 9f451e20: [<60061920>] blocking_notifier_call_chain+0x0/0x20 9f451e30: [<60061920>] blocking_notifier_call_chain+0x0/0x20 9f451e58: [<6007e3c3>] sys_init_module+0xa3/0x280 9f451e88: [<6001e2ad>] handle_syscall+0x8d/0x90 9f451ea8: [<60033370>] userspace+0x405/0x531 9f451ee8: [<6001e380>] copy_chunk_to_user+0x0/0x40 9f451ef8: [<6001e5cd>] do_op_one_page+0x14d/0x220 9f451fd8: [<6001a355>] fork_handler+0x95/0xa0 ---[ end trace dd512cc03fe1c368 ]--- kobject_create_and_add: kobject_add error: -17 ------------[ cut here ]------------ WARNING: at drivers/extcon/extcon_class.c:545 create_extcon_class+0xbc/0xd0 [extcon_class]() cannot allocate Modules linked in: extcon_class(+) [last unloaded: extcon_class] Call Trace: 9f451c80: [<602a58bc>] printk+0x0/0xa8 9f451c98: [<60039b43>] warn_slowpath_common+0x93/0xd0 9f451ca0: [<6002fe32>] unblock_signals+0x0/0x84 9f451ca8: [] create_extcon_class+0xbc/0xd0 [extcon_class] 9f451cd0: [] extcon_class_init+0x0/0x12 [extcon_class] 9f451ce8: [<60039cdc>] warn_slowpath_fmt+0x9c/0xa0 9f451d20: [<6002fe32>] unblock_signals+0x0/0x84 9f451d28: [<60039c40>] warn_slowpath_fmt+0x0/0xa0 9f451d48: [<6002fffc>] set_signals+0x29/0x3f 9f451d58: [<601cf172>] kobject_put+0x32/0x70 9f451d78: [<600c22c3>] kfree+0xb3/0x100 9f451da8: [<601fbe9a>] class_compat_register+0x7a/0x80 9f451dc8: [] create_extcon_class+0xbc/0xd0 [extcon_class] 9f451de8: [] extcon_class_init+0x10/0x12 [extcon_class] 9f451df8: [<600189a8>] do_one_initcall+0x48/0x1f0 9f451e20: [<60061920>] blocking_notifier_call_chain+0x0/0x20 9f451e30: [<60061920>] blocking_notifier_call_chain+0x0/0x20 9f451e58: [<6007e3c3>] sys_init_module+0xa3/0x280 9f451e88: [<6001e2ad>] handle_syscall+0x8d/0x90 9f451ea8: [<60033370>] userspace+0x405/0x531 9f451ee8: [<6001e380>] copy_chunk_to_user+0x0/0x40 9f451ef8: [<6001e5cd>] do_op_one_page+0x14d/0x220 9f451fd8: [<6001a355>] fork_handler+0x95/0xa0 ---[ end trace dd512cc03fe1c369 ]--- FATAL: Error inserting extcon_class (/lib/modules/3.6.0-rc6-00178-g811315f/kernel/drivers/extcon/extcon_class.ko): Cannot allocate memory This patch fixes this. Cc: stable@vger.kernel.org Signed-off-by: Peter Huewe Signed-off-by: Chanwoo Choi diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index 1ce76a8..63715cd 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -819,6 +819,9 @@ module_init(extcon_class_init); static void __exit extcon_class_exit(void) { +#if defined(CONFIG_ANDROID) + class_compat_unregister(switch_class); +#endif class_destroy(extcon_class); } module_exit(extcon_class_exit); -- cgit v0.10.2 From 824a1bc045cef278aec15bef35d8d0b59ce77856 Mon Sep 17 00:00:00 2001 From: Peter Huewe Date: Mon, 24 Sep 2012 15:36:24 +0900 Subject: extcon: unregister compat link on cleanup Since extcon registers this compat link at device registration (extcon_dev_register), we should probably remove them at deregistration/cleanup. Cc: stable@vger.kernel.org Signed-off-by: Peter Huewe Signed-off-by: Chanwoo Choi diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index 63715cd..54dc00b 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -570,6 +570,10 @@ static void extcon_cleanup(struct extcon_dev *edev, bool skip) kfree(edev->cables); } +#if defined(CONFIG_ANDROID) + if (switch_class) + class_compat_remove_link(switch_class, edev->dev, NULL); +#endif device_unregister(edev->dev); put_device(edev->dev); } -- cgit v0.10.2 From 5cd3c277ebc64e4bc30c5eb6412edd43b5730a4f Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Wed, 26 Sep 2012 08:10:03 +0900 Subject: extcon: Fix return value in extcon_register_interest() Propagate the value returned from extcon_find_cable_index() instead of -ENODEV. For readability, -EINVAL is returned in place of the variable. Signed-off-by: Sachin Kamat Signed-off-by: Chanwoo Choi diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index 54dc00b..79f5dba 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -469,7 +469,7 @@ int extcon_register_interest(struct extcon_specific_cable_nb *obj, obj->cable_index = extcon_find_cable_index(obj->edev, cable_name); if (obj->cable_index < 0) - return -ENODEV; + return -EINVAL; obj->user_nb = nb; -- cgit v0.10.2 From 03019759b98de92b5507c8c2f6e253a35d59c868 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 2 Oct 2012 09:14:59 +0900 Subject: extcon: adc-jack: Fix checking return value of request_any_context_irq On failure, request_any_context_irq() returns a negative value. On success, it returns either IRQC_IS_HARDIRQ or IRQC_IS_NESTED. Also ensure adc_jack_probe() return 0 on success. Signed-off-by: Axel Lin Signed-off-by: Chanwoo Choi diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c index 725eb5a..2cc6bec 100644 --- a/drivers/extcon/extcon-adc-jack.c +++ b/drivers/extcon/extcon-adc-jack.c @@ -161,13 +161,12 @@ static int __devinit adc_jack_probe(struct platform_device *pdev) err = request_any_context_irq(data->irq, adc_jack_irq_thread, pdata->irq_flags, pdata->name, data); - if (err) { + if (err < 0) { dev_err(&pdev->dev, "error: irq %d\n", data->irq); - err = -EINVAL; goto err_irq; } - goto out; + return 0; err_irq: extcon_dev_unregister(&data->edev); -- cgit v0.10.2 From d9310e35a8d5aefad73b2f2387503082da0bea04 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 2 Oct 2012 09:16:53 +0900 Subject: extcon: adc-jack: Add missing MODULE_LICENSE This driver can be built as a module, add MODULE_LICENSE for it. For completeness, also adds MODULE_AUTHOR and MODULE_DESCRIPTION. Signed-off-by: Axel Lin Signed-off-by: Chanwoo Choi diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c index 2cc6bec..e87196f 100644 --- a/drivers/extcon/extcon-adc-jack.c +++ b/drivers/extcon/extcon-adc-jack.c @@ -14,6 +14,7 @@ * */ +#include #include #include #include @@ -195,3 +196,7 @@ static struct platform_driver adc_jack_driver = { }; module_platform_driver(adc_jack_driver); + +MODULE_AUTHOR("MyungJoo Ham "); +MODULE_DESCRIPTION("ADC Jack extcon driver"); +MODULE_LICENSE("GPL v2"); -- cgit v0.10.2 From 909f9ec0a42eeff94dbcac226664d225a11f10d6 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 4 Oct 2012 09:53:45 +0900 Subject: extcon: Fix kerneldoc for extcon_set_cable_state and extcon_set_cable_state_ Signed-off-by: Axel Lin Signed-off-by: Chanwoo Choi diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index 79f5dba..c27d58d 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -356,7 +356,7 @@ int extcon_get_cable_state(struct extcon_dev *edev, const char *cable_name) EXPORT_SYMBOL_GPL(extcon_get_cable_state); /** - * extcon_get_cable_state_() - Set the status of a specific cable. + * extcon_set_cable_state_() - Set the status of a specific cable. * @edev: the extcon device that has the cable. * @index: cable index that can be retrieved by extcon_find_cable_index(). * @cable_state: the new cable status. The default semantics is @@ -376,7 +376,7 @@ int extcon_set_cable_state_(struct extcon_dev *edev, EXPORT_SYMBOL_GPL(extcon_set_cable_state_); /** - * extcon_get_cable_state() - Set the status of a specific cable. + * extcon_set_cable_state() - Set the status of a specific cable. * @edev: the extcon device that has the cable. * @cable_name: cable name. * @cable_state: the new cable status. The default semantics is -- cgit v0.10.2 From bf2627d66d416ff438f37643d32866aa93947be6 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 4 Oct 2012 09:55:23 +0900 Subject: extcon: max77693: Use max77693_update_reg for rmw operations This simplifies the code. Signed-off-by: Axel Lin Signed-off-by: Chanwoo Choi diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index e21387e..e0ed622 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -239,25 +239,19 @@ const char *max77693_extcon_cable[] = { static int max77693_muic_set_debounce_time(struct max77693_muic_info *info, enum max77693_muic_adc_debounce_time time) { - int ret = 0; - u8 ctrl3; + int ret; switch (time) { case ADC_DEBOUNCE_TIME_5MS: case ADC_DEBOUNCE_TIME_10MS: case ADC_DEBOUNCE_TIME_25MS: case ADC_DEBOUNCE_TIME_38_62MS: - ret = max77693_read_reg(info->max77693->regmap_muic, - MAX77693_MUIC_REG_CTRL3, &ctrl3); - ctrl3 &= ~CONTROL3_ADCDBSET_MASK; - ctrl3 |= (time << CONTROL3_ADCDBSET_SHIFT); - - ret = max77693_write_reg(info->max77693->regmap_muic, - MAX77693_MUIC_REG_CTRL3, ctrl3); - if (ret) { + ret = max77693_update_reg(info->max77693->regmap_muic, + MAX77693_MUIC_REG_CTRL3, + time << CONTROL3_ADCDBSET_SHIFT, + CONTROL3_ADCDBSET_MASK); + if (ret) dev_err(info->dev, "failed to set ADC debounce time\n"); - ret = -EINVAL; - } break; default: dev_err(info->dev, "invalid ADC debounce time\n"); -- cgit v0.10.2 From f8457d574f680a98c77846a15df13086ab1ab426 Mon Sep 17 00:00:00 2001 From: Chanwoo Choi Date: Mon, 8 Oct 2012 14:41:49 +0900 Subject: extcon: MAX77693: Add platform data for MUIC device to initialize registers This patch add platform data for MUIC device to initialize register on probe() call because it should unmask interrupt mask register and initialize some register related to MUIC device. Signed-off-by: Chanwoo Choi Signed-off-by: Myungjoo Ham Signed-off-by: Kyungmin Park diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index e0ed622..cffeab6 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -651,6 +651,8 @@ out: static int __devinit max77693_muic_probe(struct platform_device *pdev) { struct max77693_dev *max77693 = dev_get_drvdata(pdev->dev.parent); + struct max77693_platform_data *pdata = dev_get_platdata(max77693->dev); + struct max77693_muic_platform_data *muic_pdata = pdata->muic_data; struct max77693_muic_info *info; int ret, i; u8 id; @@ -721,6 +723,31 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev) goto err_extcon; } + /* Initialize MUIC register by using platform data */ + for (i = 0 ; i < muic_pdata->num_init_data ; i++) { + enum max77693_irq_source irq_src = MAX77693_IRQ_GROUP_NR; + + max77693_write_reg(info->max77693->regmap_muic, + muic_pdata->init_data[i].addr, + muic_pdata->init_data[i].data); + + switch (muic_pdata->init_data[i].addr) { + case MAX77693_MUIC_REG_INTMASK1: + irq_src = MUIC_INT1; + break; + case MAX77693_MUIC_REG_INTMASK2: + irq_src = MUIC_INT2; + break; + case MAX77693_MUIC_REG_INTMASK3: + irq_src = MUIC_INT3; + break; + } + + if (irq_src < MAX77693_IRQ_GROUP_NR) + info->max77693->irq_masks_cur[irq_src] + = muic_pdata->init_data[i].data; + } + /* Check revision number of MUIC device*/ ret = max77693_read_reg(info->max77693->regmap_muic, MAX77693_MUIC_REG_ID, &id); diff --git a/include/linux/mfd/max77693.h b/include/linux/mfd/max77693.h index 1d28ae9..fe03b2d 100644 --- a/include/linux/mfd/max77693.h +++ b/include/linux/mfd/max77693.h @@ -30,7 +30,20 @@ #ifndef __LINUX_MFD_MAX77693_H #define __LINUX_MFD_MAX77693_H +struct max77693_reg_data { + u8 addr; + u8 data; +}; + +struct max77693_muic_platform_data { + struct max77693_reg_data *init_data; + int num_init_data; +}; + struct max77693_platform_data { int wakeup; + + /* muic data */ + struct max77693_muic_platform_data *muic_data; }; #endif /* __LINUX_MFD_MAX77693_H */ -- cgit v0.10.2 From 57e7cd37059bb00cd56b60b95b8799af0db91e18 Mon Sep 17 00:00:00 2001 From: anish kumar Date: Mon, 22 Oct 2012 09:43:33 +0900 Subject: extcon: driver model release call not needed There was a case where free and list_del can be called twice on the same pointer.So fixed it by re-arranging the code and removing a function which was not needed. Signed-off-by: anish kumar Signed-off-by: Chanwoo Choi Signed-off-by: MyungJoo Ham diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index c27d58d..39d3e4d 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -545,47 +545,9 @@ static int create_extcon_class(void) return 0; } -static void extcon_cleanup(struct extcon_dev *edev, bool skip) -{ - mutex_lock(&extcon_dev_list_lock); - list_del(&edev->entry); - mutex_unlock(&extcon_dev_list_lock); - - if (!skip && get_device(edev->dev)) { - int index; - - if (edev->mutually_exclusive && edev->max_supported) { - for (index = 0; edev->mutually_exclusive[index]; - index++) - kfree(edev->d_attrs_muex[index].attr.name); - kfree(edev->d_attrs_muex); - kfree(edev->attrs_muex); - } - - for (index = 0; index < edev->max_supported; index++) - kfree(edev->cables[index].attr_g.name); - - if (edev->max_supported) { - kfree(edev->extcon_dev_type.groups); - kfree(edev->cables); - } - -#if defined(CONFIG_ANDROID) - if (switch_class) - class_compat_remove_link(switch_class, edev->dev, NULL); -#endif - device_unregister(edev->dev); - put_device(edev->dev); - } - - kfree(edev->dev); -} - static void extcon_dev_release(struct device *dev) { - struct extcon_dev *edev = (struct extcon_dev *) dev_get_drvdata(dev); - - extcon_cleanup(edev, true); + kfree(dev); } static const char *muex_name = "mutually_exclusive"; @@ -811,7 +773,40 @@ EXPORT_SYMBOL_GPL(extcon_dev_register); */ void extcon_dev_unregister(struct extcon_dev *edev) { - extcon_cleanup(edev, false); + int index; + + mutex_lock(&extcon_dev_list_lock); + list_del(&edev->entry); + mutex_unlock(&extcon_dev_list_lock); + + if (IS_ERR_OR_NULL(get_device(edev->dev))) { + dev_err(edev->dev, "Failed to unregister extcon_dev (%s)\n", + dev_name(edev->dev)); + return; + } + + if (edev->mutually_exclusive && edev->max_supported) { + for (index = 0; edev->mutually_exclusive[index]; + index++) + kfree(edev->d_attrs_muex[index].attr.name); + kfree(edev->d_attrs_muex); + kfree(edev->attrs_muex); + } + + for (index = 0; index < edev->max_supported; index++) + kfree(edev->cables[index].attr_g.name); + + if (edev->max_supported) { + kfree(edev->extcon_dev_type.groups); + kfree(edev->cables); + } + +#if defined(CONFIG_ANDROID) + if (switch_class) + class_compat_remove_link(switch_class, edev->dev, NULL); +#endif + device_unregister(edev->dev); + put_device(edev->dev); } EXPORT_SYMBOL_GPL(extcon_dev_unregister); -- cgit v0.10.2 From 44b7bccf7c5372eab3408593ab2142a5dcde03f6 Mon Sep 17 00:00:00 2001 From: anish kumar Date: Mon, 22 Oct 2012 10:11:43 +0900 Subject: extcon: trivial: kfree missed from remove path Extcon core doesn't free the memory when we do unregister. Kfree is added in the remove path as it was missing. Signed-off-by: anish kumar Signed-off-by: Chanwoo Choi Signed-off-by: MyungJoo Ham diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index cffeab6..a17d0d9 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -783,6 +783,7 @@ static int __devexit max77693_muic_remove(struct platform_device *pdev) free_irq(muic_irqs[i].virq, info); cancel_work_sync(&info->irq_work); extcon_dev_unregister(info->edev); + kfree(info->edev); kfree(info); return 0; -- cgit v0.10.2 From 4f2de3bf177e57417963eec6a131a7bb2d2b660d Mon Sep 17 00:00:00 2001 From: Jenny TC Date: Thu, 18 Oct 2012 21:00:32 +0900 Subject: extcon : register for cable interest by cable name There are some scnearios where a driver/framework needs to register interest for a particular cable without specifying the extcon device name. One such scenario is charger notifications. The platform will have charger cabel which will be bound to any extcon device. It's not mandatory for the charger driver to know which extcon device it should use. This patch enables the support for registering interest for a cable just by cable name wihtout specifying the extcon device name Signed-off-by: Jenny TC Signed-off-by: MyungJoo Ham Tested-by: Chanwoo Choi -- Kernel-doc comment added by MyungJoo Ham diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index 39d3e4d..d398821 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -441,6 +441,8 @@ static int _call_per_cable(struct notifier_block *nb, unsigned long val, * extcon device. * @obj: an empty extcon_specific_cable_nb object to be returned. * @extcon_name: the name of extcon device. + * if NULL, extcon_register_interest will register + * every cable with the target cable_name given. * @cable_name: the target cable name. * @nb: the notifier block to get notified. * @@ -460,22 +462,44 @@ int extcon_register_interest(struct extcon_specific_cable_nb *obj, const char *extcon_name, const char *cable_name, struct notifier_block *nb) { - if (!obj || !extcon_name || !cable_name || !nb) + if (!obj || !cable_name || !nb) return -EINVAL; - obj->edev = extcon_get_extcon_dev(extcon_name); - if (!obj->edev) - return -ENODEV; + if (extcon_name) { + obj->edev = extcon_get_extcon_dev(extcon_name); + if (!obj->edev) + return -ENODEV; - obj->cable_index = extcon_find_cable_index(obj->edev, cable_name); - if (obj->cable_index < 0) - return -EINVAL; + obj->cable_index = extcon_find_cable_index(obj->edev, cable_name); + if (obj->cable_index < 0) + return -ENODEV; - obj->user_nb = nb; + obj->user_nb = nb; - obj->internal_nb.notifier_call = _call_per_cable; + obj->internal_nb.notifier_call = _call_per_cable; - return raw_notifier_chain_register(&obj->edev->nh, &obj->internal_nb); + return raw_notifier_chain_register(&obj->edev->nh, &obj->internal_nb); + } else { + struct class_dev_iter iter; + struct extcon_dev *extd; + struct device *dev; + + if (!extcon_class) + return -ENODEV; + class_dev_iter_init(&iter, extcon_class, NULL, NULL); + while ((dev = class_dev_iter_next(&iter))) { + extd = (struct extcon_dev *)dev_get_drvdata(dev); + + if (extcon_find_cable_index(extd, cable_name) < 0) + continue; + + class_dev_iter_exit(&iter); + return extcon_register_interest(obj, extd->name, + cable_name, nb); + } + + return -ENODEV; + } } /** -- cgit v0.10.2 From 268300be0e1a0b06582af55251294b268c3d4654 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 19 Oct 2012 17:06:54 +0200 Subject: pinctrl/nomadik: use irq_create_mapping() Since in the DT case, the linear domain path will not allocate descriptors for the IRQs, we need to use irq_create_mapping() for mapping hwirqs to Linux IRQs, so these descriptors get created on-the-fly in this case. ChangeLog v1->v2: - Just use irq_create_mapping() in the .to_irq function since this is called before unmasking or enabling any interrupt lines, so irq_find_mapping() should be sufficient for the IRQ handler function. Cc: Lee Jones Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index 01aea1c..db5e0b3 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -1056,7 +1056,7 @@ static int nmk_gpio_to_irq(struct gpio_chip *chip, unsigned offset) struct nmk_gpio_chip *nmk_chip = container_of(chip, struct nmk_gpio_chip, chip); - return irq_find_mapping(nmk_chip->domain, offset); + return irq_create_mapping(nmk_chip->domain, offset); } #ifdef CONFIG_DEBUG_FS -- cgit v0.10.2 From b4dd784ba8af03bf1f9ee5118c792d7abd4919bd Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 22 Oct 2012 12:58:09 +0800 Subject: pinctrl: fix missing unlock on error in pinctrl_groups_show() Add the missing unlock on the error handle path in function pinctrl_groups_show(). Cc: stable@kernel.org Signed-off-by: Wei Yongjun Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index 0f1ec9e..2e39c04 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -1061,8 +1061,10 @@ static int pinctrl_groups_show(struct seq_file *s, void *what) seq_printf(s, "group: %s\n", gname); for (i = 0; i < num_pins; i++) { pname = pin_get_name(pctldev, pins[i]); - if (WARN_ON(!pname)) + if (WARN_ON(!pname)) { + mutex_unlock(&pinctrl_mutex); return -EINVAL; + } seq_printf(s, "pin %d (%s)\n", pins[i], pname); } seq_puts(s, "\n"); -- cgit v0.10.2 From 832b6cdf72fdc32cacba242a749402d28f4648f0 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 23 Oct 2012 09:50:17 +0200 Subject: pinctrl/nomadik: use zero as default irq_start The irqdomain semantics were supposed to be such that a linear domain would be used if the passed first_irq was zero or negative, but I got it wrong so only passing zero as first_irq will work properly. Well, zero is NO_IRQ these days so let's pass zero. The semantics of irqdomain_add_simple() will be fixed in a separate patch. Acked-by: Lee Jones Reported-by: Rikard Olsson Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index db5e0b3..8bfbad6 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -1281,7 +1281,7 @@ static int __devinit nmk_gpio_probe(struct platform_device *dev) struct clk *clk; int secondary_irq; void __iomem *base; - int irq_start = -1; + int irq_start = 0; int irq; int ret; -- cgit v0.10.2 From 38843e29217bc6b6fce80a5bf19d1636ee337c77 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 23 Oct 2012 11:44:42 +0200 Subject: pinctrl/nomadik: pass DT node to the irqdomain When creating the simple irqdomain, pass the DT node pointer along, as is apropriate. Acked-by: Lee Jones Reported-by: Gabriel Fernandez Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index 8bfbad6..cf82d9c 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -1387,7 +1387,7 @@ static int __devinit nmk_gpio_probe(struct platform_device *dev) if (!np) irq_start = NOMADIK_GPIO_TO_IRQ(pdata->first_gpio); - nmk_chip->domain = irq_domain_add_simple(NULL, + nmk_chip->domain = irq_domain_add_simple(np, NMK_GPIO_PER_CHIP, irq_start, &nmk_gpio_irq_simple_ops, nmk_chip); if (!nmk_chip->domain) { -- cgit v0.10.2 From a9193983f4f292a82a00c72971c17ec0ee8c6c15 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Mon, 22 Oct 2012 12:55:55 +0200 Subject: drm/i915: fix overlay on i830M MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The overlay on the i830M has a peculiar failure mode: It works the first time around after boot-up, but consistenly hangs the second time it's used. Chris Wilson has dug out a nice errata: "1.5.12 Clock Gating Disable for Display Register Address Offset: 06200h–06203h "Bit 3 Ovrunit Clock Gating Disable. 0 = Clock gating controlled by unit enabling logic 1 = Disable clock gating function DevALM Errata ALM049: Overlay Clock Gating Must be Disabled: Overlay & L2 Cache clock gating must be disabled in order to prevent device hangs when turning off overlay.SW must turn off Ovrunit clock gating (6200h) and L2 Cache clock gating (C8h)." Now I've nowhere found that 0xc8 register and hence couldn't apply the l2 cache workaround. But I've remembered that part of the magic that the OVERLAY_ON/OFF commands are supposed to do is to rearrange cache allocations so that the overlay scaler has some scratch space. And while pondering how that could explain the hang the 2nd time we enable the overlay, I've remembered that the old ums overlay code did _not_ issue the OVERLAY_OFF cmd. And indeed, disabling the OFF cmd results in the overlay working flawlessly, so I guess we can workaround the lack of the above workaround by simply never disabling the overlay engine once it's enabled. Note that we have the first part of the above w/a already implemented in i830_init_clock_gating - leave that as-is to avoid surprises. v2: Add a comment in the code. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=47827 Cc: stable@vger.kernel.org Tested-by: Rhys Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c index 4956259..d7bc817 100644 --- a/drivers/gpu/drm/i915/intel_overlay.c +++ b/drivers/gpu/drm/i915/intel_overlay.c @@ -341,9 +341,17 @@ static int intel_overlay_off(struct intel_overlay *overlay) intel_ring_emit(ring, flip_addr); intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); /* turn overlay off */ - intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_OFF); - intel_ring_emit(ring, flip_addr); - intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); + if (IS_I830(dev)) { + /* Workaround: Don't disable the overlay fully, since otherwise + * it dies on the next OVERLAY_ON cmd. */ + intel_ring_emit(ring, MI_NOOP); + intel_ring_emit(ring, MI_NOOP); + intel_ring_emit(ring, MI_NOOP); + } else { + intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_OFF); + intel_ring_emit(ring, flip_addr); + intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); + } intel_ring_advance(ring); return intel_overlay_do_wait_request(overlay, intel_overlay_off_tail); -- cgit v0.10.2 From 7f6658ef35a470cd641ea35a1da409c4bc5bae1e Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sun, 21 Oct 2012 23:26:29 +0200 Subject: drm/i915: VGA needs to be on pipe A on i830M The bit doesn't stick, and the output is always cloned from pipe A, even when it's supposed to scan out from pipe B. Shuts up annoying warnings from the modeset-rework, too. I've noticed that with this patch we know get and unknown connection state since the code can't find a suitable pipe for load detection. But that beats the previous state of affairs, where it tried to use pipe B, actually used pipe A and concluded that something is connected (although it's the LVDS on pipe A and nothing on the VGA connector on pipe B). I've tried to make load detect work by remapping the pipe->planes stuff, so that crtc 0 will use pipe B and hence we still have something left for load-detect on pipe A. But alas, that upset the hw a bit. So there's still some things to figure out, but this here will at least paper over some of the problems. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=51265 Acked-by: Chris Wilson [danvet: extend the commit message a bit with recent observations.] Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index f78061a..b726b47 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -729,7 +729,7 @@ void intel_crt_init(struct drm_device *dev) crt->base.type = INTEL_OUTPUT_ANALOG; crt->base.cloneable = true; - if (IS_HASWELL(dev)) + if (IS_HASWELL(dev) || IS_I830(dev)) crt->base.crtc_mask = (1 << 0); else crt->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2); -- cgit v0.10.2 From 446c82fc44da5ae24a205d7130571614dc6969d3 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Thu, 18 Oct 2012 09:29:44 +0200 Subject: drivers: dma-contiguous: Don't redefine SZ_1M Use the definition from linux/sizes.h instead. Signed-off-by: Laurent Pinchart Signed-off-by: Marek Szyprowski diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c index 9a14694..612afcc 100644 --- a/drivers/base/dma-contiguous.c +++ b/drivers/base/dma-contiguous.c @@ -27,15 +27,12 @@ #include #include #include +#include #include #include #include #include -#ifndef SZ_1M -#define SZ_1M (1 << 20) -#endif - struct cma { unsigned long base_pfn; unsigned long count; -- cgit v0.10.2 From ba4d93bc9ea4510a145161f0af3537b4f380af01 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Thu, 18 Oct 2012 09:29:44 +0200 Subject: drivers: dma-coherent: Fix typo in dma_mmap_from_coherent documentation The function documentation incorrectly references dma_release_coherent. Fix it. Don't mention a specific function name as dma_mmap_from_coherent as multiple callers. Signed-off-by: Laurent Pinchart Signed-off-by: Marek Szyprowski diff --git a/drivers/base/dma-coherent.c b/drivers/base/dma-coherent.c index 560a717..bc256b6 100644 --- a/drivers/base/dma-coherent.c +++ b/drivers/base/dma-coherent.c @@ -191,9 +191,8 @@ EXPORT_SYMBOL(dma_release_from_coherent); * This checks whether the memory was allocated from the per-device * coherent memory pool and if so, maps that memory to the provided vma. * - * Returns 1 if we correctly mapped the memory, or 0 if - * dma_release_coherent() should proceed with mapping memory from - * generic pools. + * Returns 1 if we correctly mapped the memory, or 0 if the caller should + * proceed with mapping memory from generic pools. */ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma, void *vaddr, size_t size, int *ret) -- cgit v0.10.2 From 5e97f3f918c27c68c092bdca7917266615aec62f Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Thu, 18 Oct 2012 09:29:44 +0200 Subject: drivers: cma: Fix wrong CMA selected region size default value Kconfig lists CMA_SIZE_SEL_ABSOLUTE as the default value fo the CMA selected region size, but that option isn't available in the defined choices. Set the default to CMA_SIZE_SEL_MBYTES instead. Signed-off-by: Laurent Pinchart Signed-off-by: Marek Szyprowski diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig index 08b4c52..b34b5cd 100644 --- a/drivers/base/Kconfig +++ b/drivers/base/Kconfig @@ -236,7 +236,7 @@ config CMA_SIZE_PERCENTAGE choice prompt "Selected region size" - default CMA_SIZE_SEL_ABSOLUTE + default CMA_SIZE_SEL_MBYTES config CMA_SIZE_SEL_MBYTES bool "Use mega bytes value only" -- cgit v0.10.2 From a1f102136538553a9488c713a336065ebb567542 Mon Sep 17 00:00:00 2001 From: Bob Liu Date: Tue, 23 Oct 2012 14:45:57 +0800 Subject: mm: cma: alloc_contig_range: return early for err path If start_isolate_page_range() failed, unset_migratetype_isolate() has been done inside it. Signed-off-by: Bob Liu Signed-off-by: Marek Szyprowski diff --git a/mm/page_alloc.c b/mm/page_alloc.c index bb90971..b0012ab 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5825,7 +5825,7 @@ int alloc_contig_range(unsigned long start, unsigned long end, ret = start_isolate_page_range(pfn_max_align_down(start), pfn_max_align_up(end), migratetype); if (ret) - goto done; + return ret; ret = __alloc_contig_migrate_range(&cc, start, end); if (ret) -- cgit v0.10.2 From 871ae57adc5ed092c1341f411514d0e8482e2611 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Mon, 22 Oct 2012 20:44:03 +0800 Subject: ARM: dma-mapping: support debug_dma_mapping_error Without the patch, kind of below warning will be dumped if DMA-API debug is enabled: [ 11.069763] ------------[ cut here ]------------ [ 11.074645] WARNING: at lib/dma-debug.c:948 check_unmap+0x770/0x860() [ 11.081420] ehci-omap ehci-omap.0: DMA-API: device driver failed to check map error[device address=0x0000000 0adb78e80] [size=8 bytes] [mapped as single] [ 11.095611] Modules linked in: Cc: Russell King Cc: Marek Szyprowski Signed-off-by: Ming Lei Signed-off-by: Marek Szyprowski diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 2300484..78d8e9b 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -91,6 +91,7 @@ static inline dma_addr_t virt_to_dma(struct device *dev, void *addr) */ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { + debug_dma_mapping_error(dev, dma_addr); return dma_addr == DMA_ERROR_CODE; } -- cgit v0.10.2 From 213d27a42ce1646989966011d2af8563feac5635 Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Fri, 5 Oct 2012 17:51:11 +0200 Subject: spi/pl022: Revert recent runtime PM changes [Originally sent by Ulf as two changes, squashed down into one with a redone changelog, thanks to Russell King for analysis. -- broonie] This reverts commit 688723 (spi/pl022: enable runtime PM) and commit 2fb30d (spi/pl022: fix spi-pl022 pm enable at probe). Commit "spi/pl022: enable runtime PM" introduced runtime PM issues as it interacted badly with the work Russell King had done to move core runtime PM handling into the bus. Due to that commit, "spi/pl022: fix spi-pl022 pm enable at probe" was merged to fix part of those issues. Instead of adding another fix, let's clean up and revert everything back to when it was already fine. Signed-off-by: Ulf Hansson Reviewed-by: Linus Walleij Signed-off-by: Mark Brown Revert "spi/pl022: enable runtime PM" Conflicts: drivers/spi/spi-pl022.c diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index 9194641..a1db91a 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -2186,8 +2186,6 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id) printk(KERN_INFO "pl022: mapped registers from 0x%08x to %p\n", adev->res.start, pl022->virtbase); - pm_runtime_resume(dev); - pl022->clk = devm_clk_get(&adev->dev, NULL); if (IS_ERR(pl022->clk)) { status = PTR_ERR(pl022->clk); @@ -2292,7 +2290,6 @@ pl022_remove(struct amba_device *adev) clk_disable(pl022->clk); clk_unprepare(pl022->clk); - pm_runtime_disable(&adev->dev); amba_release_regions(adev); tasklet_disable(&pl022->pump_transfers); spi_unregister_master(pl022->master); -- cgit v0.10.2 From 57911b8ba814fae01306376a0d02bc7cdc88dc94 Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Fri, 19 Oct 2012 09:22:03 +0200 Subject: Btrfs: don't put removals from push_node_left into tree mod log twice Independant of the check (push_items < src_items) tree_mod_log_eb_copy did log the removal of the old data entries from the source buffer. Therefore, we must not call tree_mod_log_eb_move if the check evaluates to true, as that would log the removal twice, finally resulting in (rewinded) buffers with wrong values for header_nritems. Signed-off-by: Jan Schmidt diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index b334362..44a7e25 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1225,6 +1225,8 @@ tree_mod_log_rewind(struct btrfs_fs_info *fs_info, struct extent_buffer *eb, free_extent_buffer(eb); __tree_mod_log_rewind(eb_rewin, time_seq, tm); + WARN_ON(btrfs_header_nritems(eb_rewin) > + BTRFS_NODEPTRS_PER_BLOCK(fs_info->fs_root)); return eb_rewin; } @@ -1280,6 +1282,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq) else WARN_ON(btrfs_header_level(eb) != 0); extent_buffer_get(eb); + WARN_ON(btrfs_header_nritems(eb) > BTRFS_NODEPTRS_PER_BLOCK(root)); return eb; } @@ -2970,8 +2973,10 @@ static int push_node_left(struct btrfs_trans_handle *trans, push_items * sizeof(struct btrfs_key_ptr)); if (push_items < src_nritems) { - tree_mod_log_eb_move(root->fs_info, src, 0, push_items, - src_nritems - push_items); + /* + * don't call tree_mod_log_eb_move here, key removal was already + * fully logged by tree_mod_log_eb_copy above. + */ memmove_extent_buffer(src, btrfs_node_key_ptr_offset(0), btrfs_node_key_ptr_offset(push_items), (src_nritems - push_items) * -- cgit v0.10.2 From ba1bfbd592c1adddd5d0005f587a6e308e25c949 Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Mon, 22 Oct 2012 20:02:56 +0200 Subject: Btrfs: fix a tree mod logging issue for root replacement operations Avoid the implicit free by tree_mod_log_set_root_pointer, which is wrong in two places. Where needed, we call tree_mod_log_free_eb explicitly now. Signed-off-by: Jan Schmidt diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 44a7e25..e6b75cc 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -647,8 +647,6 @@ tree_mod_log_insert_root(struct btrfs_fs_info *fs_info, if (tree_mod_dont_log(fs_info, NULL)) return 0; - __tree_mod_log_free_eb(fs_info, old_root); - ret = tree_mod_alloc(fs_info, flags, &tm); if (ret < 0) goto out; @@ -926,12 +924,7 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans, ret = btrfs_dec_ref(trans, root, buf, 1, 1); BUG_ON(ret); /* -ENOMEM */ } - /* - * don't log freeing in case we're freeing the root node, this - * is done by tree_mod_log_set_root_pointer later - */ - if (buf != root->node && btrfs_header_level(buf) != 0) - tree_mod_log_free_eb(root->fs_info, buf); + tree_mod_log_free_eb(root->fs_info, buf); clean_tree_block(trans, root, buf); *last_ref = 1; } @@ -1728,6 +1721,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, goto enospc; } + tree_mod_log_free_eb(root->fs_info, root->node); tree_mod_log_set_root_pointer(root, child); rcu_assign_pointer(root->node, child); -- cgit v0.10.2 From b6aa22db7857ab7ed042d6c56b800bfc727cfdff Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 16 Oct 2012 12:51:45 -0400 Subject: drm/radeon: add some new SI PCI ids Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h index c78bb99..af1cbaf 100644 --- a/include/drm/drm_pciids.h +++ b/include/drm/drm_pciids.h @@ -205,6 +205,8 @@ {0x1002, 0x6788, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x678A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6790, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x6791, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x6792, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6798, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6799, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x679A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ @@ -217,6 +219,7 @@ {0x1002, 0x6808, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6809, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6810, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x6811, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6816, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6817, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6818, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ -- cgit v0.10.2 From 1518d7fb5d42aec6ec7349b3be8712af132b46fa Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 17 Oct 2012 12:42:13 -0400 Subject: drm/radeon: fix sparse warning Reported-by: Fengguang Wu Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c index a7677dd..4f6b09e 100644 --- a/drivers/gpu/drm/radeon/radeon_gart.c +++ b/drivers/gpu/drm/radeon/radeon_gart.c @@ -577,7 +577,7 @@ void radeon_vm_manager_fini(struct radeon_device *rdev) * * Global and local mutex must be locked! */ -int radeon_vm_evict(struct radeon_device *rdev, struct radeon_vm *vm) +static int radeon_vm_evict(struct radeon_device *rdev, struct radeon_vm *vm) { struct radeon_vm *vm_evict; -- cgit v0.10.2 From 614499b4d844dcceae5ae2f1e53a2963789a8933 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 17 Oct 2012 17:20:24 -0400 Subject: drm/radeon: give each backlight a unique id In cases where we have multiple radeons with backlight controls. Should fix: https://bugzilla.kernel.org/show_bug.cgi?id=48941 Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index 49cbb37..ba498f8 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -184,6 +184,7 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder, struct radeon_backlight_privdata *pdata; struct radeon_encoder_atom_dig *dig; u8 backlight_level; + char bl_name[16]; if (!radeon_encoder->enc_priv) return; @@ -203,7 +204,9 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder, memset(&props, 0, sizeof(props)); props.max_brightness = RADEON_MAX_BL_LEVEL; props.type = BACKLIGHT_RAW; - bd = backlight_device_register("radeon_bl", &drm_connector->kdev, + snprintf(bl_name, sizeof(bl_name), + "radeon_bl%d", dev->primary->index); + bd = backlight_device_register(bl_name, &drm_connector->kdev, pdata, &radeon_atom_backlight_ops, &props); if (IS_ERR(bd)) { DRM_ERROR("Backlight registration failed\n"); diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index a13ad9d..0063df9 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -370,6 +370,7 @@ void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder, struct backlight_properties props; struct radeon_backlight_privdata *pdata; uint8_t backlight_level; + char bl_name[16]; if (!radeon_encoder->enc_priv) return; @@ -389,7 +390,9 @@ void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder, memset(&props, 0, sizeof(props)); props.max_brightness = RADEON_MAX_BL_LEVEL; props.type = BACKLIGHT_RAW; - bd = backlight_device_register("radeon_bl", &drm_connector->kdev, + snprintf(bl_name, sizeof(bl_name), + "radeon_bl%d", dev->primary->index); + bd = backlight_device_register(bl_name, &drm_connector->kdev, pdata, &radeon_backlight_ops, &props); if (IS_ERR(bd)) { DRM_ERROR("Backlight registration failed\n"); -- cgit v0.10.2 From c71721324c612f7f040657ce9917d87f530f9784 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 19 Oct 2012 13:27:04 -0400 Subject: drm/radeon: add error output if VM CS fails on cayman So we know why the CS was rejected. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c index 573ed1b..30271b64 100644 --- a/drivers/gpu/drm/radeon/evergreen_cs.c +++ b/drivers/gpu/drm/radeon/evergreen_cs.c @@ -2829,6 +2829,7 @@ static bool evergreen_vm_reg_valid(u32 reg) case CAYMAN_SQ_EX_ALLOC_TABLE_SLOTS: return true; default: + DRM_ERROR("Invalid register 0x%x in CS\n", reg); return false; } } -- cgit v0.10.2 From 58f8cf56f937840aa3c1416eed29f595159c60a3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Mon, 22 Oct 2012 17:42:35 +0200 Subject: drm/radeon: fix PFP sync in vm_flush MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Otherwise the next IB might start reading commands with the page table still invalid. Signed-off-by: Christian König Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 8c74c72..19b7fe1 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -1586,4 +1586,8 @@ void cayman_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm) /* bits 0-7 are the VM contexts0-7 */ radeon_ring_write(ring, PACKET0(VM_INVALIDATE_REQUEST, 0)); radeon_ring_write(ring, 1 << vm->id); + + /* sync PFP to ME, otherwise we might get invalid PFP reads */ + radeon_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0)); + radeon_ring_write(ring, 0x0); } diff --git a/drivers/gpu/drm/radeon/nid.h b/drivers/gpu/drm/radeon/nid.h index 2423d1b..cbef681 100644 --- a/drivers/gpu/drm/radeon/nid.h +++ b/drivers/gpu/drm/radeon/nid.h @@ -502,6 +502,7 @@ #define PACKET3_MPEG_INDEX 0x3A #define PACKET3_WAIT_REG_MEM 0x3C #define PACKET3_MEM_WRITE 0x3D +#define PACKET3_PFP_SYNC_ME 0x42 #define PACKET3_SURFACE_SYNC 0x43 # define PACKET3_CB0_DEST_BASE_ENA (1 << 6) # define PACKET3_CB1_DEST_BASE_ENA (1 << 7) diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index df8dd77..da184de 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -2868,6 +2868,10 @@ void si_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm) radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2); radeon_ring_write(ring, 0); radeon_ring_write(ring, 1 << vm->id); + + /* sync PFP to ME, otherwise we might get invalid PFP reads */ + radeon_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0)); + radeon_ring_write(ring, 0x0); } /* -- cgit v0.10.2 From f9fdffa51dff6744726507c641d8151fadbc7cd7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Mon, 22 Oct 2012 17:42:36 +0200 Subject: drm/radeon: fix cayman_vm_set_page v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Handle requests that won't fit into a single packet. v2: pe needs to increase as well. Signed-off-by: Christian König Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 19b7fe1..81e6a56 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -1538,26 +1538,31 @@ void cayman_vm_set_page(struct radeon_device *rdev, uint64_t pe, { struct radeon_ring *ring = &rdev->ring[rdev->asic->vm.pt_ring_index]; uint32_t r600_flags = cayman_vm_page_flags(rdev, flags); - int i; - radeon_ring_write(ring, PACKET3(PACKET3_ME_WRITE, 1 + count * 2)); - radeon_ring_write(ring, pe); - radeon_ring_write(ring, upper_32_bits(pe) & 0xff); - for (i = 0; i < count; ++i) { - uint64_t value = 0; - if (flags & RADEON_VM_PAGE_SYSTEM) { - value = radeon_vm_map_gart(rdev, addr); - value &= 0xFFFFFFFFFFFFF000ULL; - addr += incr; - - } else if (flags & RADEON_VM_PAGE_VALID) { - value = addr; - addr += incr; - } + while (count) { + unsigned ndw = 1 + count * 2; + if (ndw > 0x3FFF) + ndw = 0x3FFF; + + radeon_ring_write(ring, PACKET3(PACKET3_ME_WRITE, ndw)); + radeon_ring_write(ring, pe); + radeon_ring_write(ring, upper_32_bits(pe) & 0xff); + for (; ndw > 1; ndw -= 2, --count, pe += 8) { + uint64_t value = 0; + if (flags & RADEON_VM_PAGE_SYSTEM) { + value = radeon_vm_map_gart(rdev, addr); + value &= 0xFFFFFFFFFFFFF000ULL; + addr += incr; + + } else if (flags & RADEON_VM_PAGE_VALID) { + value = addr; + addr += incr; + } - value |= r600_flags; - radeon_ring_write(ring, value); - radeon_ring_write(ring, upper_32_bits(value)); + value |= r600_flags; + radeon_ring_write(ring, value); + radeon_ring_write(ring, upper_32_bits(value)); + } } } -- cgit v0.10.2 From d7025d893897da3e2c26943c57e40d2296146f82 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Mon, 22 Oct 2012 17:42:37 +0200 Subject: drm/radeon: fix si_set_page v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Handle requests that won't fit into a single packet. v2: pe needs to increase as well. Signed-off-by: Christian König Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index da184de..b0db712 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -2808,26 +2808,31 @@ void si_vm_set_page(struct radeon_device *rdev, uint64_t pe, { struct radeon_ring *ring = &rdev->ring[rdev->asic->vm.pt_ring_index]; uint32_t r600_flags = cayman_vm_page_flags(rdev, flags); - int i; - uint64_t value; - radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 2 + count * 2)); - radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) | - WRITE_DATA_DST_SEL(1))); - radeon_ring_write(ring, pe); - radeon_ring_write(ring, upper_32_bits(pe)); - for (i = 0; i < count; ++i) { - if (flags & RADEON_VM_PAGE_SYSTEM) { - value = radeon_vm_map_gart(rdev, addr); - value &= 0xFFFFFFFFFFFFF000ULL; - } else if (flags & RADEON_VM_PAGE_VALID) - value = addr; - else - value = 0; - addr += incr; - value |= r600_flags; - radeon_ring_write(ring, value); - radeon_ring_write(ring, upper_32_bits(value)); + while (count) { + unsigned ndw = 2 + count * 2; + if (ndw > 0x3FFE) + ndw = 0x3FFE; + + radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, ndw)); + radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) | + WRITE_DATA_DST_SEL(1))); + radeon_ring_write(ring, pe); + radeon_ring_write(ring, upper_32_bits(pe)); + for (; ndw > 2; ndw -= 2, --count, pe += 8) { + uint64_t value; + if (flags & RADEON_VM_PAGE_SYSTEM) { + value = radeon_vm_map_gart(rdev, addr); + value &= 0xFFFFFFFFFFFFF000ULL; + } else if (flags & RADEON_VM_PAGE_VALID) + value = addr; + else + value = 0; + addr += incr; + value |= r600_flags; + radeon_ring_write(ring, value); + radeon_ring_write(ring, upper_32_bits(value)); + } } } -- cgit v0.10.2 From 204a393c5b88106d7485e20ec834add1013e410a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Mon, 22 Oct 2012 17:42:38 +0200 Subject: drm/radeon: remove set_page check from VM code MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It's better to handle this in the chipset specific code. Signed-off-by: Christian König Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c index 4f6b09e..926dc9d 100644 --- a/drivers/gpu/drm/radeon/radeon_gart.c +++ b/drivers/gpu/drm/radeon/radeon_gart.c @@ -1036,8 +1036,7 @@ static void radeon_vm_update_ptes(struct radeon_device *rdev, pte = radeon_sa_bo_gpu_addr(vm->page_tables[pt_idx]); pte += (addr & mask) * 8; - if (((last_pte + 8 * count) != pte) || - ((count + nptes) > 1 << 11)) { + if ((last_pte + 8 * count) != pte) { if (count) { radeon_asic_vm_set_page(rdev, last_pte, -- cgit v0.10.2 From 08eda32b13c045b6219464764d6028d86d3c58a8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Mon, 22 Oct 2012 17:42:39 +0200 Subject: drm/radeon: fix header size estimation in VM code MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Only NI uses 3dw headers, SI uses 4dw headers. Signed-off-by: Christian König Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c index 926dc9d..e9e8953 100644 --- a/drivers/gpu/drm/radeon/radeon_gart.c +++ b/drivers/gpu/drm/radeon/radeon_gart.c @@ -1147,17 +1147,17 @@ int radeon_vm_bo_update_pte(struct radeon_device *rdev, if (RADEON_VM_BLOCK_SIZE > 11) /* reserve space for one header for every 2k dwords */ - ndw += (nptes >> 11) * 3; + ndw += (nptes >> 11) * 4; else /* reserve space for one header for every (1 << BLOCK_SIZE) entries */ - ndw += (nptes >> RADEON_VM_BLOCK_SIZE) * 3; + ndw += (nptes >> RADEON_VM_BLOCK_SIZE) * 4; /* reserve space for pte addresses */ ndw += nptes * 2; /* reserve space for one header for every 2k dwords */ - ndw += (npdes >> 11) * 3; + ndw += (npdes >> 11) * 4; /* reserve space for pde addresses */ ndw += npdes * 2; -- cgit v0.10.2 From 489f781a5936f4b90cd5c9838e0102933f6eb2b5 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Tue, 23 Oct 2012 14:24:21 +0100 Subject: arm64: Use pgprot_t as the last argument when invoking __ioremap() Even if it works with since the types have the same size, the correct type of the last __ioremap() argument is pgprot_t rather than pteval_t. Signed-off-by: Catalin Marinas diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index 74a2a7d..d10778f 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -225,9 +225,9 @@ extern void __iounmap(volatile void __iomem *addr); #define PROT_DEVICE_nGnRE (PROT_DEFAULT | PTE_XN | PTE_ATTRINDX(MT_DEVICE_nGnRE)) #define PROT_NORMAL_NC (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL_NC)) -#define ioremap(addr, size) __ioremap((addr), (size), PROT_DEVICE_nGnRE) -#define ioremap_nocache(addr, size) __ioremap((addr), (size), PROT_DEVICE_nGnRE) -#define ioremap_wc(addr, size) __ioremap((addr), (size), PROT_NORMAL_NC) +#define ioremap(addr, size) __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE)) +#define ioremap_nocache(addr, size) __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE)) +#define ioremap_wc(addr, size) __ioremap((addr), (size), __pgprot(PROT_NORMAL_NC)) #define iounmap __iounmap #define ARCH_HAS_IOREMAP_WC -- cgit v0.10.2 From e3978cded41dc7b364e74037f56d6bc558c11fd7 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Tue, 23 Oct 2012 14:51:16 +0100 Subject: arm64: Move PCI_IOBASE closer to MODULES_VADDR This is to reuse the same pmd table that is sparsely populated with the modules space. Signed-off-by: Catalin Marinas diff --git a/Documentation/arm64/memory.txt b/Documentation/arm64/memory.txt index dbbdcbb..4110cca 100644 --- a/Documentation/arm64/memory.txt +++ b/Documentation/arm64/memory.txt @@ -27,17 +27,17 @@ Start End Size Use ----------------------------------------------------------------------- 0000000000000000 0000007fffffffff 512GB user -ffffff8000000000 ffffffbbfffcffff ~240GB vmalloc +ffffff8000000000 ffffffbbfffeffff ~240GB vmalloc -ffffffbbfffd0000 ffffffbcfffdffff 64KB [guard page] +ffffffbbffff0000 ffffffbbffffffff 64KB [guard page] -ffffffbbfffe0000 ffffffbcfffeffff 64KB PCI I/O space +ffffffbc00000000 ffffffbdffffffff 8GB vmemmap -ffffffbbffff0000 ffffffbcffffffff 64KB [guard page] +ffffffbe00000000 ffffffbffbbfffff ~8GB [guard, future vmmemap] -ffffffbc00000000 ffffffbdffffffff 8GB vmemmap +ffffffbffbe00000 ffffffbffbe0ffff 64KB PCI I/O space -ffffffbe00000000 ffffffbffbffffff ~8GB [guard, future vmmemap] +ffffffbbffff0000 ffffffbcffffffff ~2MB [guard] ffffffbffc000000 ffffffbfffffffff 64MB modules diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index d10778f..54f6116 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -114,7 +114,7 @@ static inline u64 __raw_readq(const volatile void __iomem *addr) * I/O port access primitives. */ #define IO_SPACE_LIMIT 0xffff -#define PCI_IOBASE ((void __iomem *)0xffffffbbfffe0000UL) +#define PCI_IOBASE ((void __iomem *)(MODULES_VADDR - SZ_2M)) static inline u8 inb(unsigned long addr) { -- cgit v0.10.2 From 3cf164c8dee834cef9dac4e7325f89a207339ac8 Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Sun, 21 Oct 2012 14:59:22 +0000 Subject: mlx4_core: Remove annoying debug messages from SR-IOV flow These debug prints left behind by commits c82e9aa0a8bc ("mlx4_core: resource tracking for HCA resources used by guests"), 54679e148287 ("mlx4: Implement QP paravirtualization and maintain phys_pkey_cache for smp_snoop") and 993c401e2079 ("mlx4_core: Add IB port-state machine and port mgmt event propagation") make it pretty hard to actually use the mlx4_core debug messages when running in SRIOV/IB mode -- for example, the module load sequence of a device with one VF yielded 631 debug prints, with 408 of them being from this set. Let's just remove them. Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c index 51c7649..194221b 100644 --- a/drivers/net/ethernet/mellanox/mlx4/eq.c +++ b/drivers/net/ethernet/mellanox/mlx4/eq.c @@ -329,9 +329,6 @@ int set_and_calc_slave_port_state(struct mlx4_dev *dev, int slave, ctx = &priv->mfunc.master.slave_state[slave]; spin_lock_irqsave(&ctx->lock, flags); - mlx4_dbg(dev, "%s: slave: %d, current state: %d new event :%d\n", - __func__, slave, cur_state, event); - switch (cur_state) { case SLAVE_PORT_DOWN: if (MLX4_PORT_STATE_DEV_EVENT_PORT_UP == event) @@ -366,9 +363,6 @@ int set_and_calc_slave_port_state(struct mlx4_dev *dev, int slave, goto out; } ret = mlx4_get_slave_port_state(dev, slave, port); - mlx4_dbg(dev, "%s: slave: %d, current state: %d new event" - " :%d gen_event: %d\n", - __func__, slave, cur_state, event, *gen_event); out: spin_unlock_irqrestore(&ctx->lock, flags); diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index 926c911..b05705f 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -330,9 +330,6 @@ static void update_pkey_index(struct mlx4_dev *dev, int slave, new_index = priv->virt2phys_pkey[slave][port - 1][orig_index]; *(u8 *)(inbox->buf + 35) = new_index; - - mlx4_dbg(dev, "port = %d, orig pkey index = %d, " - "new pkey index = %d\n", port, orig_index, new_index); } static void update_gid(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *inbox, @@ -351,9 +348,6 @@ static void update_gid(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *inbox, if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) qp_ctx->alt_path.mgid_index = slave & 0x7F; } - - mlx4_dbg(dev, "slave %d, new gid index: 0x%x ", - slave, qp_ctx->pri_path.mgid_index); } static int mpt_mask(struct mlx4_dev *dev) -- cgit v0.10.2 From 41929ed2656bab8af1734bf5d0088385e72e294f Mon Sep 17 00:00:00 2001 From: Dotan Barak Date: Sun, 21 Oct 2012 14:59:23 +0000 Subject: mlx4_core: Perform correct resource cleanup if mlx4_QUERY_ADAPTER() fails Fixed the resource cleanup to act correctly and prevent a kernel oops when mlx4_QUERY_ADAPTER() fails. Signed-off-by: Dotan Barak Reviewed-by: Jack Morgenstein Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 80df2ab..2aa80af 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -1405,7 +1405,10 @@ unmap_bf: unmap_bf_area(dev); err_close: - mlx4_close_hca(dev); + if (mlx4_is_slave(dev)) + mlx4_slave_exit(dev); + else + mlx4_CLOSE_HCA(dev, 0); err_free_icm: if (!mlx4_is_slave(dev)) -- cgit v0.10.2 From bb698ca41ba574b3066ebbc5766e5980ae0051ca Mon Sep 17 00:00:00 2001 From: Wolfgang Grandegger Date: Wed, 10 Oct 2012 21:10:42 +0200 Subject: can: flexcan: disable bus error interrupts for the i.MX6q This patch adds some Flexcan version info and removes the feature flag FLEXCAN_HAS_BROKEN_ERR_STATE for the i.MX6Q. It also has the line [TR]WRN_INT properly connected. Cc: Hui Wang Cc: Shawn Guo Signed-off-by: Wolfgang Grandegger [mkl: convert to incremental patch] Signed-off-by: Marc Kleine-Budde diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index c78ecfc..a412bf6 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -144,9 +144,22 @@ #define FLEXCAN_MB_CODE_MASK (0xf0ffffff) -/* FLEXCAN hardware feature flags */ +/* + * FLEXCAN hardware feature flags + * + * Below is some version info we got: + * SOC Version IP-Version Glitch- [TR]WRN_INT + * Filter? connected? + * MX25 FlexCAN2 03.00.00.00 no no + * MX28 FlexCAN2 03.00.04.00 yes yes + * MX35 FlexCAN2 03.00.00.00 no no + * MX53 FlexCAN2 03.00.00.00 yes no + * MX6s FlexCAN3 10.00.12.00 yes yes + * + * Some SOCs do not have the RX_WARN & TX_WARN interrupt line connected. + */ #define FLEXCAN_HAS_V10_FEATURES BIT(1) /* For core version >= 10 */ -#define FLEXCAN_HAS_BROKEN_ERR_STATE BIT(2) /* Broken error state handling */ +#define FLEXCAN_HAS_BROKEN_ERR_STATE BIT(2) /* [TR]WRN_INT not connected */ /* Structure of the message buffer */ struct flexcan_mb { @@ -205,7 +218,7 @@ static struct flexcan_devtype_data fsl_p1010_devtype_data = { }; static struct flexcan_devtype_data fsl_imx28_devtype_data; static struct flexcan_devtype_data fsl_imx6q_devtype_data = { - .features = FLEXCAN_HAS_V10_FEATURES | FLEXCAN_HAS_BROKEN_ERR_STATE, + .features = FLEXCAN_HAS_V10_FEATURES, }; static const struct can_bittiming_const flexcan_bittiming_const = { -- cgit v0.10.2 From 8e42e0a23d30ba84d8e946042ee82aac4934048a Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Tue, 23 Oct 2012 13:01:46 -0700 Subject: block: remove CONFIG_EXPERIMENTAL This config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it. CC: Jens Axboe Signed-off-by: Kees Cook Signed-off-by: Jens Axboe diff --git a/block/Kconfig b/block/Kconfig index 09acf1b..a7e40a7 100644 --- a/block/Kconfig +++ b/block/Kconfig @@ -89,7 +89,7 @@ config BLK_DEV_INTEGRITY config BLK_DEV_THROTTLING bool "Block layer bio throttling support" - depends on BLK_CGROUP=y && EXPERIMENTAL + depends on BLK_CGROUP=y default n ---help--- Block layer bio throttling support. It can be used to limit -- cgit v0.10.2 From b8977285ecb0033b0bd9a99d4355f9c0bc8708f1 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Tue, 23 Oct 2012 14:01:51 -0600 Subject: drivers/block: remove CONFIG_EXPERIMENTAL This config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it. CC: Greg Kroah-Hartman CC: Asai Thambi S P CC: Pete Zaitcev CC: Cong Wang CC: Jens Axboe Signed-off-by: Kees Cook Signed-off-by: Jens Axboe diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index f529407..6983a65 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -166,8 +166,8 @@ config BLK_DEV_DAC960 module will be called DAC960. config BLK_DEV_UMEM - tristate "Micro Memory MM5415 Battery Backed RAM support (EXPERIMENTAL)" - depends on PCI && EXPERIMENTAL + tristate "Micro Memory MM5415 Battery Backed RAM support" + depends on PCI ---help--- Saying Y here will include support for the MM5415 family of battery backed (Non-volatile) RAM cards. @@ -430,8 +430,8 @@ config CDROM_PKTCDVD_BUFFERS a disc is opened for writing. config CDROM_PKTCDVD_WCACHE - bool "Enable write caching (EXPERIMENTAL)" - depends on CDROM_PKTCDVD && EXPERIMENTAL + bool "Enable write caching" + depends on CDROM_PKTCDVD help If enabled, write caching will be set for the CD-R/W device. For now this option is dangerous unless the CD-RW media is known good, as we @@ -508,8 +508,8 @@ config XEN_BLKDEV_BACKEND config VIRTIO_BLK - tristate "Virtio block driver (EXPERIMENTAL)" - depends on EXPERIMENTAL && VIRTIO + tristate "Virtio block driver" + depends on VIRTIO ---help--- This is the virtual block driver for virtio. It can be used with lguest or QEMU based VMMs (like KVM or Xen). Say Y or M. @@ -528,7 +528,7 @@ config BLK_DEV_HD config BLK_DEV_RBD tristate "Rados block device (RBD)" - depends on INET && EXPERIMENTAL && BLOCK + depends on INET && BLOCK select CEPH_LIB select LIBCRC32C select CRYPTO_AES -- cgit v0.10.2 From 966e7a854177097083683176ced871558b631a12 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Wed, 17 Oct 2012 12:17:50 +0200 Subject: xhci: endianness xhci_calculate_intel_u2_timeout An le16 is accessed without conversion. This patch should be backported to kernels as old as 3.5, that contain the commit e3567d2c15a7a8e2f992a5f7c7683453ca406d82 "xhci: Add Intel U1/U2 timeout policy." Signed-off-by: Oliver Neukum Signed-off-by: Sarah Sharp CC: stable@vger.kernel.org diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 7d462bf..8d3c454 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -4142,7 +4142,7 @@ static u16 xhci_calculate_intel_u2_timeout(struct usb_device *udev, (xhci_service_interval_to_ns(desc) > timeout_ns)) timeout_ns = xhci_service_interval_to_ns(desc); - u2_del_ns = udev->bos->ss_cap->bU2DevExitLat * 1000; + u2_del_ns = le16_to_cpu(udev->bos->ss_cap->bU2DevExitLat) * 1000ULL; if (u2_del_ns > timeout_ns) timeout_ns = u2_del_ns; -- cgit v0.10.2 From 16b45fdf9c4e82f5d3bc53aa70737650e7c8d5ed Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Wed, 17 Oct 2012 10:16:16 +0200 Subject: xhci: fix integer overflow xhci_service_interval_to_ns() returns long long to avoid an overflow. However, the type cast happens too late. The fix is to force ULL from the beginning. This patch should be backported to kernels as old as 3.5, that contain the commit e3567d2c15a7a8e2f992a5f7c7683453ca406d82 "xhci: Add Intel U1/U2 timeout policy." Signed-off-by: Oliver Neukum Signed-off-by: Sarah Sharp CC: stable@vger.kernel.org diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 8d3c454..9ec9396 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -4021,7 +4021,7 @@ int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev) static unsigned long long xhci_service_interval_to_ns( struct usb_endpoint_descriptor *desc) { - return (1 << (desc->bInterval - 1)) * 125 * 1000; + return (1ULL << (desc->bInterval - 1)) * 125 * 1000; } static u16 xhci_get_timeout_no_hub_lpm(struct usb_device *udev, -- cgit v0.10.2 From 12ac7f9e117facfe128d6e569953fa73d2d676b3 Mon Sep 17 00:00:00 2001 From: Vaibhav Hiremath Date: Tue, 23 Oct 2012 18:58:21 -0700 Subject: ARM: AM33XX: Fix configuration of dmtimer parent clock by dmtimer driverDate:Wed, 17 Oct 2012 13:55:55 -0500 Add dmtimer clock aliases for AM33XX devices so that the parent clock for the dmtimer can be set correctly by the dmtimer driver. Without these clock aliases the dmtimer driver will fail to find the parent clocks for the dmtimer. Verified that DMTIMERs can be successfully requested on AM335x beagle bone. Original patch was provided by Vaibhav Hiremath [1]. Changelog and additional verification performed by Jon Hunter. [1] http://marc.info/?l=linux-omap&m=134693631608018&w=2 Signed-off-by: Vaibhav Hiremath Signed-off-by: Jon Hunter Tested-by: Jon Hunter Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/clock33xx_data.c b/arch/arm/mach-omap2/clock33xx_data.c index 114ab4b..1a45d6b 100644 --- a/arch/arm/mach-omap2/clock33xx_data.c +++ b/arch/arm/mach-omap2/clock33xx_data.c @@ -1073,6 +1073,8 @@ static struct omap_clk am33xx_clks[] = { CLK(NULL, "gfx_fck_div_ck", &gfx_fck_div_ck, CK_AM33XX), CLK(NULL, "sysclkout_pre_ck", &sysclkout_pre_ck, CK_AM33XX), CLK(NULL, "clkout2_ck", &clkout2_ck, CK_AM33XX), + CLK(NULL, "timer_32k_ck", &clkdiv32k_ick, CK_AM33XX), + CLK(NULL, "timer_sys_ck", &sys_clkin_ck, CK_AM33XX), }; int __init am33xx_clk_init(void) -- cgit v0.10.2 From 197ef5ef37d91686545872703bb6d756a53898ea Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 23 Oct 2012 20:29:15 -0400 Subject: USB: Add missing license tag to ezusb driver. ezusb: module license 'unspecified' taints kernel Signed-off-by: Dave Jones Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/ezusb.c b/drivers/usb/misc/ezusb.c index 4223d76..6589268 100644 --- a/drivers/usb/misc/ezusb.c +++ b/drivers/usb/misc/ezusb.c @@ -158,3 +158,4 @@ int ezusb_fx2_ihex_firmware_download(struct usb_device *dev, } EXPORT_SYMBOL_GPL(ezusb_fx2_ihex_firmware_download); +MODULE_LICENSE("GPL"); -- cgit v0.10.2 From 036546bf950b7916dcc051eb0d450e23028b487a Mon Sep 17 00:00:00 2001 From: Octavian Purdila Date: Tue, 23 Oct 2012 11:33:12 +0300 Subject: usb hub: use flush_work instead of flush_work_sync flush_work_sync and flush_work are now the same and flush_work_sync has been deprecated. This fixes the following warning: drivers/usb/core/hub.c: In function hub_quiesce: drivers/usb/core/hub.c:1216:3: warning: flush_work_sync is deprecated (declared at include/linux/workqueue.h:448) [-Wdeprecated-declarations] Reported-by: Fengguang Wu Signed-off-by: Octavian Purdila Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 1181e91..1af04bd 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1213,7 +1213,7 @@ static void hub_quiesce(struct usb_hub *hub, enum hub_quiescing_type type) if (hub->has_indicators) cancel_delayed_work_sync(&hub->leds); if (hub->tt.hub) - flush_work_sync(&hub->tt.clear_work); + flush_work(&hub->tt.clear_work); } /* caller has locked the hub device */ -- cgit v0.10.2 From 720dfd250e48a8c7fd1b2b8645955413989c4ee0 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Sun, 21 Oct 2012 19:58:30 +0800 Subject: dmaengine: imx-dma: fix missing unlock on error in imxdma_xfer_desc() Add the missing unlock on the error handling path in function imxdma_xfer_desc(). Signed-off-by: Wei Yongjun Cc: stable Signed-off-by: Vinod Koul diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index f11b5b2..7d9554c 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -474,8 +474,10 @@ static int imxdma_xfer_desc(struct imxdma_desc *d) slot = i; break; } - if (slot < 0) + if (slot < 0) { + spin_unlock_irqrestore(&imxdma->lock, flags); return -EBUSY; + } imxdma->slots_2d[slot].xsr = d->x; imxdma->slots_2d[slot].ysr = d->y; -- cgit v0.10.2 From c57d75c099e55500b620f50a207e61b9e20ecd29 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Tue, 23 Oct 2012 10:17:05 +0200 Subject: gpio: mvebu: correctly set the value in direction_output() The ->direction_output() operation of gpio_chip is supposed to set the direction to output but also to set the GPIO to an initial value. Unfortunately, this last part was not done until now, causing for example the LEDs to not be properly set to their default initial value. This patch fixes this by calling the mvebu_gpio_set() function from mvebu_gpio_direction_output() before configuring the GPIO as an output GPIO. Signed-off-by: Thomas Petazzoni Signed-off-by: Linus Walleij diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c index 902af43..1bb43e3 100644 --- a/drivers/gpio/gpio-mvebu.c +++ b/drivers/gpio/gpio-mvebu.c @@ -244,6 +244,8 @@ static int mvebu_gpio_direction_output(struct gpio_chip *chip, unsigned pin, if (ret) return ret; + mvebu_gpio_set(chip, pin, value); + spin_lock_irqsave(&mvchip->lock, flags); u = readl_relaxed(mvebu_gpioreg_io_conf(mvchip)); u &= ~(1 << pin); -- cgit v0.10.2 From 3dd7ea922051e68854e016cfd2992226cfb5bb43 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 24 Oct 2012 14:09:14 +0900 Subject: ARM: dma-mapping: fix build warning in __dma_alloc() Fix build warning in __dma_alloc() as below: arch/arm/mm/dma-mapping.c: In function '__dma_alloc': arch/arm/mm/dma-mapping.c:653:29: warning: 'page' may be used uninitialized in this function [-Wuninitialized] Signed-off-by: Jingoo Han Signed-off-by: Marek Szyprowski diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 477a2d2..58bc3e4 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -610,7 +610,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp, pgprot_t prot, bool is_coherent, const void *caller) { u64 mask = get_coherent_dma_mask(dev); - struct page *page; + struct page *page = NULL; void *addr; #ifdef CONFIG_DMA_API_DEBUG -- cgit v0.10.2 From 4e85fb831aa210fd1c5e2cb7909ac203c1f5b67f Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Thu, 18 Oct 2012 09:29:44 +0200 Subject: ARM: mm: Remove unused arm_vmregion priv field Commit e9da6e9905e639b0f842a244bc770b48ad0523e9 ("ARM: dma-mapping: remove custom consistent dma region") removed the last users of the field. Remove it. Signed-off-by: Laurent Pinchart Signed-off-by: Marek Szyprowski diff --git a/arch/arm/mm/vmregion.h b/arch/arm/mm/vmregion.h index bf312c3..0f5a5f2 100644 --- a/arch/arm/mm/vmregion.h +++ b/arch/arm/mm/vmregion.h @@ -17,7 +17,6 @@ struct arm_vmregion { struct list_head vm_list; unsigned long vm_start; unsigned long vm_end; - void *priv; int vm_active; const void *caller; }; -- cgit v0.10.2 From 7b16bbf97375d9fb7fc107b3f80afeb94a204e44 Mon Sep 17 00:00:00 2001 From: Dave Young Date: Thu, 18 Oct 2012 14:33:23 +0800 Subject: Revert "x86/mm: Fix the size calculation of mapping tables" Commit: 722bc6b16771 x86/mm: Fix the size calculation of mapping tables Tried to address the issue that the first 2/4M should use 4k pages if PSE enabled, but extra counts should only be valid for x86_32. This commit caused a kdump regression: the kdump kernel hangs. Work is in progress to fundamentally fix the various page table initialization issues that we have, via the design suggested by H. Peter Anvin, but it's not ready yet to be merged. So, to get a working kdump revert to the last known working version, which is the revert of this commit and of a followup fix (which was incomplete): bd2753b2dda7 x86/mm: Only add extra pages count for the first memory range during pre-allocation Tested kdump on physical and virtual machines. Signed-off-by: Dave Young Acked-by: Yinghai Lu Acked-by: Cong Wang Acked-by: Flavio Leitner Tested-by: Flavio Leitner Cc: Dan Carpenter Cc: Cong Wang Cc: Flavio Leitner Cc: Tejun Heo Cc: ianfang.cn@gmail.com Cc: Vivek Goyal Cc: Linus Torvalds Cc: Andrew Morton Cc: Signed-off-by: Ingo Molnar diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index ab1f6a9..8653b3a 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -29,14 +29,8 @@ int direct_gbpages #endif ; -struct map_range { - unsigned long start; - unsigned long end; - unsigned page_size_mask; -}; - -static void __init find_early_table_space(struct map_range *mr, unsigned long end, - int use_pse, int use_gbpages) +static void __init find_early_table_space(unsigned long end, int use_pse, + int use_gbpages) { unsigned long puds, pmds, ptes, tables, start = 0, good_end = end; phys_addr_t base; @@ -61,10 +55,6 @@ static void __init find_early_table_space(struct map_range *mr, unsigned long en #ifdef CONFIG_X86_32 extra += PMD_SIZE; #endif - /* The first 2/4M doesn't use large pages. */ - if (mr->start < PMD_SIZE) - extra += mr->end - mr->start; - ptes = (extra + PAGE_SIZE - 1) >> PAGE_SHIFT; } else ptes = (end + PAGE_SIZE - 1) >> PAGE_SHIFT; @@ -95,6 +85,12 @@ void __init native_pagetable_reserve(u64 start, u64 end) memblock_reserve(start, end - start); } +struct map_range { + unsigned long start; + unsigned long end; + unsigned page_size_mask; +}; + #ifdef CONFIG_X86_32 #define NR_RANGE_MR 3 #else /* CONFIG_X86_64 */ @@ -267,7 +263,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, * nodes are discovered. */ if (!after_bootmem) - find_early_table_space(&mr[0], end, use_pse, use_gbpages); + find_early_table_space(end, use_pse, use_gbpages); for (i = 0; i < nr_range; i++) ret = kernel_physical_mapping_init(mr[i].start, mr[i].end, -- cgit v0.10.2 From 7991c9ca40d3127dd2ffa3a9c1e33f7d4005495a Mon Sep 17 00:00:00 2001 From: Vince Weaver Date: Fri, 19 Oct 2012 17:30:01 -0400 Subject: perf/x86: Fix P6 FP_ASSIST event constraint According to Intel SDM Volume 3B, FP_ASSIST is limited to Counter 1 only, not Counter 0. Tested on a Pentium II. Signed-off-by: Vince Weaver Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1210191728570.14552@vincent-weaver-1.um.maine.edu Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/perf_event_p6.c b/arch/x86/kernel/cpu/perf_event_p6.c index e4dd0f7..0ff5f7f 100644 --- a/arch/x86/kernel/cpu/perf_event_p6.c +++ b/arch/x86/kernel/cpu/perf_event_p6.c @@ -34,7 +34,7 @@ static struct event_constraint p6_event_constraints[] = { INTEL_EVENT_CONSTRAINT(0xc1, 0x1), /* FLOPS */ INTEL_EVENT_CONSTRAINT(0x10, 0x1), /* FP_COMP_OPS_EXE */ - INTEL_EVENT_CONSTRAINT(0x11, 0x1), /* FP_ASSIST */ + INTEL_EVENT_CONSTRAINT(0x11, 0x2), /* FP_ASSIST */ INTEL_EVENT_CONSTRAINT(0x12, 0x2), /* MUL */ INTEL_EVENT_CONSTRAINT(0x13, 0x2), /* DIV */ INTEL_EVENT_CONSTRAINT(0x14, 0x1), /* CYCLES_DIV_BUSY */ -- cgit v0.10.2 From e09df47885d767e418902067ce1885aafa3b27db Mon Sep 17 00:00:00 2001 From: Vince Weaver Date: Fri, 19 Oct 2012 17:31:54 -0400 Subject: perf/x86: Update/fix generic events on P6 PMU This patch updates the generic events on p6, including some new extended cache events. Values for these events were taken from the equivelant PAPI predefined events. Tested on a Pentium II. Signed-off-by: Vince Weaver Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1210191730080.14552@vincent-weaver-1.um.maine.edu Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/perf_event_p6.c b/arch/x86/kernel/cpu/perf_event_p6.c index 0ff5f7f..9582fcb 100644 --- a/arch/x86/kernel/cpu/perf_event_p6.c +++ b/arch/x86/kernel/cpu/perf_event_p6.c @@ -8,13 +8,106 @@ */ static const u64 p6_perfmon_event_map[] = { - [PERF_COUNT_HW_CPU_CYCLES] = 0x0079, - [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, - [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0f2e, - [PERF_COUNT_HW_CACHE_MISSES] = 0x012e, - [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4, - [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5, - [PERF_COUNT_HW_BUS_CYCLES] = 0x0062, + [PERF_COUNT_HW_CPU_CYCLES] = 0x0079, /* CPU_CLK_UNHALTED */ + [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, /* INST_RETIRED */ + [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0f2e, /* L2_RQSTS:M:E:S:I */ + [PERF_COUNT_HW_CACHE_MISSES] = 0x012e, /* L2_RQSTS:I */ + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4, /* BR_INST_RETIRED */ + [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5, /* BR_MISS_PRED_RETIRED */ + [PERF_COUNT_HW_BUS_CYCLES] = 0x0062, /* BUS_DRDY_CLOCKS */ + [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00a2, /* RESOURCE_STALLS */ + +}; + +static __initconst u64 p6_hw_cache_event_ids + [PERF_COUNT_HW_CACHE_MAX] + [PERF_COUNT_HW_CACHE_OP_MAX] + [PERF_COUNT_HW_CACHE_RESULT_MAX] = +{ + [ C(L1D) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = 0x0043, /* DATA_MEM_REFS */ + [ C(RESULT_MISS) ] = 0x0045, /* DCU_LINES_IN */ + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0x0f29, /* L2_LD:M:E:S:I */ + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0, + }, + }, + [ C(L1I ) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = 0x0080, /* IFU_IFETCH */ + [ C(RESULT_MISS) ] = 0x0f28, /* L2_IFETCH:M:E:S:I */ + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0, + }, + }, + [ C(LL ) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0x0025, /* L2_M_LINES_INM */ + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0, + }, + }, + [ C(DTLB) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = 0x0043, /* DATA_MEM_REFS */ + [ C(RESULT_MISS) ] = 0, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0, + }, + }, + [ C(ITLB) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = 0x0080, /* IFU_IFETCH */ + [ C(RESULT_MISS) ] = 0x0085, /* ITLB_MISS */ + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + }, + [ C(BPU ) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED */ + [ C(RESULT_MISS) ] = 0x00c5, /* BR_MISS_PRED_RETIRED */ + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + }, }; static u64 p6_pmu_event_map(int hw_event) @@ -158,5 +251,9 @@ __init int p6_pmu_init(void) x86_pmu = p6_pmu; + memcpy(hw_cache_event_ids, p6_hw_cache_event_ids, + sizeof(hw_cache_event_ids)); + + return 0; } -- cgit v0.10.2 From 58e9eaf06f5476cb2192ec1d012674ce5e79dd21 Mon Sep 17 00:00:00 2001 From: Vince Weaver Date: Fri, 19 Oct 2012 17:33:38 -0400 Subject: perf/x86: Remove P6 cpuc->enabled check Between 2.6.33 and 2.6.34 the PMU code was made modular. The x86_pmu_enable() call was extended to disable cpuc->enabled and iterate the counters, enabling one at a time, before calling enable_all() at the end, followed by re-enabling cpuc->enabled. Since cpuc->enabled was set to 0, that change effectively caused the "val |= ARCH_PERFMON_EVENTSEL_ENABLE;" code in p6_pmu_enable_event() and p6_pmu_disable_event() to be dead code that was never called. This change removes this code (which was confusing) and adds some extra commentary to make it more clear what is going on. Signed-off-by: Vince Weaver Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1210191732000.14552@vincent-weaver-1.um.maine.edu Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/perf_event_p6.c b/arch/x86/kernel/cpu/perf_event_p6.c index 9582fcb..7d0270b 100644 --- a/arch/x86/kernel/cpu/perf_event_p6.c +++ b/arch/x86/kernel/cpu/perf_event_p6.c @@ -157,25 +157,25 @@ static void p6_pmu_enable_all(int added) static inline void p6_pmu_disable_event(struct perf_event *event) { - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); struct hw_perf_event *hwc = &event->hw; u64 val = P6_NOP_EVENT; - if (cpuc->enabled) - val |= ARCH_PERFMON_EVENTSEL_ENABLE; - (void)wrmsrl_safe(hwc->config_base, val); } static void p6_pmu_enable_event(struct perf_event *event) { - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); struct hw_perf_event *hwc = &event->hw; u64 val; val = hwc->config; - if (cpuc->enabled) - val |= ARCH_PERFMON_EVENTSEL_ENABLE; + + /* + * p6 only has a global event enable, set on PerfEvtSel0 + * We "disable" events by programming P6_NOP_EVENT + * and we rely on p6_pmu_enable_all() being called + * to actually enable the events. + */ (void)wrmsrl_safe(hwc->config_base, val); } -- cgit v0.10.2 From 876ee61aadf01aa0db981b5d249cbdd53dc28b5e Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Thu, 4 Oct 2012 14:48:10 +0100 Subject: x86-64: Fix page table accounting Commit 20167d3421a089a1bf1bd680b150dc69c9506810 ("x86-64: Fix accounting in kernel_physical_mapping_init()") went a little too far by entirely removing the counting of pre-populated page tables: this should be done at boot time (to cover the page tables set up in early boot code), but shouldn't be done during memory hot add. Hence, re-add the removed increments of "pages", but make them and the one in phys_pte_init() conditional upon !after_bootmem. Reported-Acked-and-Tested-by: Hugh Dickins Signed-off-by: Jan Beulich Cc: Link: http://lkml.kernel.org/r/506DAFBA020000780009FA8C@nat28.tlf.novell.com Signed-off-by: Ingo Molnar diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 2b6b4a3..3baff25 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -386,7 +386,8 @@ phys_pte_init(pte_t *pte_page, unsigned long addr, unsigned long end, * these mappings are more intelligent. */ if (pte_val(*pte)) { - pages++; + if (!after_bootmem) + pages++; continue; } @@ -451,6 +452,8 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end, * attributes. */ if (page_size_mask & (1 << PG_LEVEL_2M)) { + if (!after_bootmem) + pages++; last_map_addr = next; continue; } @@ -526,6 +529,8 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end, * attributes. */ if (page_size_mask & (1 << PG_LEVEL_1G)) { + if (!after_bootmem) + pages++; last_map_addr = next; continue; } -- cgit v0.10.2 From fc09e3672ed623f9c8e73ded3cbcd2cfcf304aac Mon Sep 17 00:00:00 2001 From: Stephane Grosjean Date: Tue, 23 Oct 2012 12:37:17 +0200 Subject: can: sja1000: fix/add miniPCIe/cPCI PC/104Plus PCI/104e PEAK-System boards This patch adds the support for 4 new PCI boards based on the SJA1000 CAN controller, from PEAK-System Technik: . PCAN-miniPCIe (PCI-Express Mini slots, available as single or dual-channel) . PCAN-cPCI (CompactPCI format, available as single or dual-channel) . PCAN-PC/104-Plus (PC/104-Plus system, av. as 1, 2 or 4 channels) . PCAN-PCI/104-Express (PCI/104-Express system, av. as 1 or 2 channels) This patch also fixes a typo in existing "PEAK_MPCI_DEVICE_ID" identifier (missing "e" for Express). Finally, it also changes the author as well as it updates the module supported devices list. Signed-off-by: Stephane Grosjean Acked-by: Oliver Hartkopp Acked-by: Wolfgang Grandegger Signed-off-by: Marc Kleine-Budde diff --git a/drivers/net/can/sja1000/peak_pci.c b/drivers/net/can/sja1000/peak_pci.c index f5b82ae..6525dbc 100644 --- a/drivers/net/can/sja1000/peak_pci.c +++ b/drivers/net/can/sja1000/peak_pci.c @@ -30,9 +30,10 @@ #include "sja1000.h" -MODULE_AUTHOR("Wolfgang Grandegger "); +MODULE_AUTHOR("Stephane Grosjean "); MODULE_DESCRIPTION("Socket-CAN driver for PEAK PCAN PCI family cards"); MODULE_SUPPORTED_DEVICE("PEAK PCAN PCI/PCIe/PCIeC miniPCI CAN cards"); +MODULE_SUPPORTED_DEVICE("PEAK PCAN miniPCIe/cPCI PC/104+ PCI/104e CAN Cards"); MODULE_LICENSE("GPL v2"); #define DRV_NAME "peak_pci" @@ -64,7 +65,11 @@ struct peak_pci_chan { #define PEAK_PCI_DEVICE_ID 0x0001 /* for PCI/PCIe slot cards */ #define PEAK_PCIEC_DEVICE_ID 0x0002 /* for ExpressCard slot cards */ #define PEAK_PCIE_DEVICE_ID 0x0003 /* for nextgen PCIe slot cards */ -#define PEAK_MPCI_DEVICE_ID 0x0008 /* The miniPCI slot cards */ +#define PEAK_CPCI_DEVICE_ID 0x0004 /* for nextgen cPCI slot cards */ +#define PEAK_MPCI_DEVICE_ID 0x0005 /* for nextgen miniPCI slot cards */ +#define PEAK_PC_104P_DEVICE_ID 0x0006 /* PCAN-PC/104+ cards */ +#define PEAK_PCI_104E_DEVICE_ID 0x0007 /* PCAN-PCI/104 Express cards */ +#define PEAK_MPCIE_DEVICE_ID 0x0008 /* The miniPCIe slot cards */ #define PEAK_PCI_CHAN_MAX 4 @@ -76,6 +81,10 @@ static DEFINE_PCI_DEVICE_TABLE(peak_pci_tbl) = { {PEAK_PCI_VENDOR_ID, PEAK_PCI_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, {PEAK_PCI_VENDOR_ID, PEAK_PCIE_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, {PEAK_PCI_VENDOR_ID, PEAK_MPCI_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, + {PEAK_PCI_VENDOR_ID, PEAK_MPCIE_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, + {PEAK_PCI_VENDOR_ID, PEAK_PC_104P_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, + {PEAK_PCI_VENDOR_ID, PEAK_PCI_104E_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, + {PEAK_PCI_VENDOR_ID, PEAK_CPCI_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, #ifdef CONFIG_CAN_PEAK_PCIEC {PEAK_PCI_VENDOR_ID, PEAK_PCIEC_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, #endif -- cgit v0.10.2 From 032c3851f51141e30de02ed0bc50a7743dfd776d Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Wed, 24 Oct 2012 16:42:20 +0800 Subject: perf/x86/uncore: Handle pci_read_config_dword() errors MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This, beyond handling corner cases, also fixes some build warnings: arch/x86/kernel/cpu/perf_event_intel_uncore.c: In function ‘snbep_uncore_pci_disable_box’: arch/x86/kernel/cpu/perf_event_intel_uncore.c:124:9: warning: ‘config’ is used uninitialized in this function [-Wuninitialized] arch/x86/kernel/cpu/perf_event_intel_uncore.c: In function ‘snbep_uncore_pci_enable_box’: arch/x86/kernel/cpu/perf_event_intel_uncore.c:135:9: warning: ‘config’ is used uninitialized in this function [-Wuninitialized] arch/x86/kernel/cpu/perf_event_intel_uncore.c: In function ‘snbep_uncore_pci_read_counter’: arch/x86/kernel/cpu/perf_event_intel_uncore.c:164:2: warning: ‘count’ is used uninitialized in this function [-Wuninitialized] Signed-off-by: Yan, Zheng Cc: a.p.zijlstra@chello.nl Link: http://lkml.kernel.org/r/1351068140-13456-1-git-send-email-zheng.z.yan@intel.com Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c index 5df8d32..6f87477 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c @@ -118,22 +118,24 @@ static void snbep_uncore_pci_disable_box(struct intel_uncore_box *box) { struct pci_dev *pdev = box->pci_dev; int box_ctl = uncore_pci_box_ctl(box); - u32 config; + u32 config = 0; - pci_read_config_dword(pdev, box_ctl, &config); - config |= SNBEP_PMON_BOX_CTL_FRZ; - pci_write_config_dword(pdev, box_ctl, config); + if (!pci_read_config_dword(pdev, box_ctl, &config)) { + config |= SNBEP_PMON_BOX_CTL_FRZ; + pci_write_config_dword(pdev, box_ctl, config); + } } static void snbep_uncore_pci_enable_box(struct intel_uncore_box *box) { struct pci_dev *pdev = box->pci_dev; int box_ctl = uncore_pci_box_ctl(box); - u32 config; + u32 config = 0; - pci_read_config_dword(pdev, box_ctl, &config); - config &= ~SNBEP_PMON_BOX_CTL_FRZ; - pci_write_config_dword(pdev, box_ctl, config); + if (!pci_read_config_dword(pdev, box_ctl, &config)) { + config &= ~SNBEP_PMON_BOX_CTL_FRZ; + pci_write_config_dword(pdev, box_ctl, config); + } } static void snbep_uncore_pci_enable_event(struct intel_uncore_box *box, struct perf_event *event) @@ -156,7 +158,7 @@ static u64 snbep_uncore_pci_read_counter(struct intel_uncore_box *box, struct pe { struct pci_dev *pdev = box->pci_dev; struct hw_perf_event *hwc = &event->hw; - u64 count; + u64 count = 0; pci_read_config_dword(pdev, hwc->event_base, (u32 *)&count); pci_read_config_dword(pdev, hwc->event_base + 4, (u32 *)&count + 1); @@ -603,11 +605,12 @@ static struct pci_driver snbep_uncore_pci_driver = { /* * build pci bus to socket mapping */ -static void snbep_pci2phy_map_init(void) +static int snbep_pci2phy_map_init(void) { struct pci_dev *ubox_dev = NULL; int i, bus, nodeid; - u32 config; + int err = 0; + u32 config = 0; while (1) { /* find the UBOX device */ @@ -618,10 +621,14 @@ static void snbep_pci2phy_map_init(void) break; bus = ubox_dev->bus->number; /* get the Node ID of the local register */ - pci_read_config_dword(ubox_dev, 0x40, &config); + err = pci_read_config_dword(ubox_dev, 0x40, &config); + if (err) + break; nodeid = config; /* get the Node ID mapping */ - pci_read_config_dword(ubox_dev, 0x54, &config); + err = pci_read_config_dword(ubox_dev, 0x54, &config); + if (err) + break; /* * every three bits in the Node ID mapping register maps * to a particular node. @@ -633,7 +640,11 @@ static void snbep_pci2phy_map_init(void) } } }; - return; + + if (ubox_dev) + pci_dev_put(ubox_dev); + + return err ? pcibios_err_to_errno(err) : 0; } /* end of Sandy Bridge-EP uncore support */ @@ -2578,9 +2589,11 @@ static int __init uncore_pci_init(void) switch (boot_cpu_data.x86_model) { case 45: /* Sandy Bridge-EP */ + ret = snbep_pci2phy_map_init(); + if (ret) + return ret; pci_uncores = snbep_pci_uncores; uncore_pci_driver = &snbep_uncore_pci_driver; - snbep_pci2phy_map_init(); break; default: return 0; -- cgit v0.10.2 From ae5ba47a990a18c869d66916fd72fb334c45cf91 Mon Sep 17 00:00:00 2001 From: Vince Weaver Date: Wed, 17 Oct 2012 13:03:21 -0400 Subject: perf/x86: Make Intel KNC use full 40-bit width of counters Early versions of Intel KNC chips have a bug where bits above 32 were not properly set. We worked around this by only using the bottom 32 bits (out of 40 that should be available). It turns out this workaround breaks overflow handling. The buggy silicon will in theory never be used in production systems, so remove this workaround so we get proper overflow support. Signed-off-by: Vince Weaver Cc: Peter Zijlstra Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: eranian@gmail.com Cc: Meadows Lawrence F Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1210171302140.23243@vincent-weaver-1.um.maine.edu Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/perf_event_knc.c b/arch/x86/kernel/cpu/perf_event_knc.c index 7c46bfd..73bcfbd 100644 --- a/arch/x86/kernel/cpu/perf_event_knc.c +++ b/arch/x86/kernel/cpu/perf_event_knc.c @@ -226,12 +226,11 @@ static __initconst struct x86_pmu knc_pmu = { .event_map = knc_pmu_event_map, .max_events = ARRAY_SIZE(knc_perfmon_event_map), .apic = 1, - .max_period = (1ULL << 31) - 1, + .max_period = (1ULL << 39) - 1, .version = 0, .num_counters = 2, - /* in theory 40 bits, early silicon is buggy though */ - .cntval_bits = 32, - .cntval_mask = (1ULL << 32) - 1, + .cntval_bits = 40, + .cntval_mask = (1ULL << 40) - 1, .get_event_constraints = x86_get_event_constraints, .event_constraints = knc_event_constraints, .format_attrs = intel_knc_formats_attr, -- cgit v0.10.2 From 7d011962afbaa6e572cd8e0dbb7abf773e166e64 Mon Sep 17 00:00:00 2001 From: Vince Weaver Date: Wed, 17 Oct 2012 13:04:33 -0400 Subject: perf/x86: Remove cpuc->enable check on Intl KNC event enable/disable x86_pmu.enable() is called from x86_pmu_enable() with cpuc->enabled set to 0. This means we weren't re-enabling the counters after a context switch. This patch just removes the check, as it should't be necessary (and the equivelent x86_ generic code does not have the checks). The origin of this problem is the KNC driver being based on the P6 one. The P6 driver also has this issue, but works anyway due to various lucky accidents. Signed-off-by: Vince Weaver Cc: Peter Zijlstra Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: eranian@gmail.com Cc: Meadows Cc: Lawrence F Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1210171303290.23243@vincent-weaver-1.um.maine.edu Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/perf_event_knc.c b/arch/x86/kernel/cpu/perf_event_knc.c index 73bcfbd..f3a2af4 100644 --- a/arch/x86/kernel/cpu/perf_event_knc.c +++ b/arch/x86/kernel/cpu/perf_event_knc.c @@ -173,26 +173,22 @@ static void knc_pmu_enable_all(int added) static inline void knc_pmu_disable_event(struct perf_event *event) { - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); struct hw_perf_event *hwc = &event->hw; u64 val; val = hwc->config; - if (cpuc->enabled) - val &= ~ARCH_PERFMON_EVENTSEL_ENABLE; + val &= ~ARCH_PERFMON_EVENTSEL_ENABLE; (void)wrmsrl_safe(hwc->config_base + hwc->idx, val); } static void knc_pmu_enable_event(struct perf_event *event) { - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); struct hw_perf_event *hwc = &event->hw; u64 val; val = hwc->config; - if (cpuc->enabled) - val |= ARCH_PERFMON_EVENTSEL_ENABLE; + val |= ARCH_PERFMON_EVENTSEL_ENABLE; (void)wrmsrl_safe(hwc->config_base + hwc->idx, val); } -- cgit v0.10.2 From e4074b3049f99c6ad6e1a33e6d93d8ec0652e2c1 Mon Sep 17 00:00:00 2001 From: Vince Weaver Date: Wed, 17 Oct 2012 13:05:45 -0400 Subject: perf/x86: Enable overflow on Intel KNC with a custom knc_pmu_handle_irq() Although based on the Intel P6 design, the interrupt mechnanism for KNC more closely resembles the Intel architectural perfmon one. We can't just re-use that code though, because KNC has different MSR numbers for the status and ack registers. In this case we just cut-and paste from perf_event_intel.c with some minor changes, as it looks like it would not be worth the trouble to change that code to be MSR-configurable. Signed-off-by: Vince Weaver Cc: Peter Zijlstra Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: eranian@gmail.com Cc: Meadows Lawrence F Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1210171304410.23243@vincent-weaver-1.um.maine.edu [ Small stylistic edits. ] Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/perf_event_knc.c b/arch/x86/kernel/cpu/perf_event_knc.c index f3a2af4..4b7731b 100644 --- a/arch/x86/kernel/cpu/perf_event_knc.c +++ b/arch/x86/kernel/cpu/perf_event_knc.c @@ -3,6 +3,8 @@ #include #include +#include + #include "perf_event.h" static const u64 knc_perfmon_event_map[] = @@ -193,6 +195,80 @@ static void knc_pmu_enable_event(struct perf_event *event) (void)wrmsrl_safe(hwc->config_base + hwc->idx, val); } +static inline u64 knc_pmu_get_status(void) +{ + u64 status; + + rdmsrl(MSR_KNC_IA32_PERF_GLOBAL_STATUS, status); + + return status; +} + +static inline void knc_pmu_ack_status(u64 ack) +{ + wrmsrl(MSR_KNC_IA32_PERF_GLOBAL_OVF_CONTROL, ack); +} + +static int knc_pmu_handle_irq(struct pt_regs *regs) +{ + struct perf_sample_data data; + struct cpu_hw_events *cpuc; + int handled = 0; + int bit, loops; + u64 status; + + cpuc = &__get_cpu_var(cpu_hw_events); + + knc_pmu_disable_all(); + + status = knc_pmu_get_status(); + if (!status) { + knc_pmu_enable_all(0); + return handled; + } + + loops = 0; +again: + knc_pmu_ack_status(status); + if (++loops > 100) { + WARN_ONCE(1, "perf: irq loop stuck!\n"); + perf_event_print_debug(); + goto done; + } + + inc_irq_stat(apic_perf_irqs); + + for_each_set_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) { + struct perf_event *event = cpuc->events[bit]; + + handled++; + + if (!test_bit(bit, cpuc->active_mask)) + continue; + + if (!intel_pmu_save_and_restart(event)) + continue; + + perf_sample_data_init(&data, 0, event->hw.last_period); + + if (perf_event_overflow(event, &data, regs)) + x86_pmu_stop(event, 0); + } + + /* + * Repeat if there is more work to be done: + */ + status = knc_pmu_get_status(); + if (status) + goto again; + +done: + knc_pmu_enable_all(0); + + return handled; +} + + PMU_FORMAT_ATTR(event, "config:0-7" ); PMU_FORMAT_ATTR(umask, "config:8-15" ); PMU_FORMAT_ATTR(edge, "config:18" ); @@ -210,7 +286,7 @@ static struct attribute *intel_knc_formats_attr[] = { static __initconst struct x86_pmu knc_pmu = { .name = "knc", - .handle_irq = x86_pmu_handle_irq, + .handle_irq = knc_pmu_handle_irq, .disable_all = knc_pmu_disable_all, .enable_all = knc_pmu_enable_all, .enable = knc_pmu_enable_event, -- cgit v0.10.2 From 834328a8493079d15f30866ace42489463f52571 Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Tue, 23 Oct 2012 11:27:33 +0200 Subject: Btrfs: tree mod log's old roots could still be part of the tree Tree mod log treated old root buffers as always empty buffers when starting the rewind operations. However, the old root may still be part of the current tree at a lower level, with still some valid entries. Signed-off-by: Jan Schmidt diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index e6b75cc..d9308c38 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1239,6 +1239,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq) struct tree_mod_root *old_root = NULL; u64 old_generation = 0; u64 logical; + u32 blocksize; eb = btrfs_read_lock_root_node(root); tm = __tree_mod_log_oldest_root(root->fs_info, root, time_seq); @@ -1254,12 +1255,28 @@ get_old_root(struct btrfs_root *root, u64 time_seq) } tm = tree_mod_log_search(root->fs_info, logical, time_seq); - if (old_root) + if (old_root && tm && tm->op != MOD_LOG_KEY_REMOVE_WHILE_FREEING) { + btrfs_tree_read_unlock(root->node); + free_extent_buffer(root->node); + blocksize = btrfs_level_size(root, old_root->level); + eb = read_tree_block(root, logical, blocksize, 0); + if (!eb) { + pr_warn("btrfs: failed to read tree block %llu from get_old_root\n", + logical); + WARN_ON(1); + } else { + eb = btrfs_clone_extent_buffer(eb); + } + } else if (old_root) { + btrfs_tree_read_unlock(root->node); + free_extent_buffer(root->node); eb = alloc_dummy_extent_buffer(logical, root->nodesize); - else + } else { eb = btrfs_clone_extent_buffer(root->node); - btrfs_tree_read_unlock(root->node); - free_extent_buffer(root->node); + btrfs_tree_read_unlock(root->node); + free_extent_buffer(root->node); + } + if (!eb) return NULL; btrfs_tree_read_lock(eb); -- cgit v0.10.2 From 5b6602e762cae17c8891d19698afea451e9c1d95 Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Tue, 23 Oct 2012 11:28:27 +0200 Subject: Btrfs: determine level of old roots In btrfs_find_all_roots' termination condition, we compare the level of the old buffer we got from btrfs_search_old_slot to the level of the current root node. We'd better compare it to the level of the rewinded root node. Signed-off-by: Jan Schmidt diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index f318793..65608fb 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -283,9 +283,7 @@ static int __resolve_indirect_ref(struct btrfs_fs_info *fs_info, goto out; } - rcu_read_lock(); - root_level = btrfs_header_level(root->node); - rcu_read_unlock(); + root_level = btrfs_old_root_level(root, time_seq); if (root_level + 1 == level) goto out; diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index d9308c38..ef68c33 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1297,6 +1297,23 @@ get_old_root(struct btrfs_root *root, u64 time_seq) return eb; } +int btrfs_old_root_level(struct btrfs_root *root, u64 time_seq) +{ + struct tree_mod_elem *tm; + int level; + + tm = __tree_mod_log_oldest_root(root->fs_info, root, time_seq); + if (tm && tm->op == MOD_LOG_ROOT_REPLACE) { + level = tm->old_root.level; + } else { + rcu_read_lock(); + level = btrfs_header_level(root->node); + rcu_read_unlock(); + } + + return level; +} + static inline int should_cow_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *buf) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 1630be8..34c5a44 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3120,6 +3120,7 @@ static inline u64 btrfs_inc_tree_mod_seq(struct btrfs_fs_info *fs_info) { return atomic_inc_return(&fs_info->tree_mod_seq); } +int btrfs_old_root_level(struct btrfs_root *root, u64 time_seq); /* root-item.c */ int btrfs_find_root_ref(struct btrfs_root *tree_root, -- cgit v0.10.2 From d638108484d186bf97a838d037f165d9b404e6ee Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Tue, 23 Oct 2012 14:21:05 +0200 Subject: Btrfs: fix extent buffer reference for tree mod log roots In get_old_root we grab a lock on the extent buffer before we obtain a reference on that buffer. That order is changed now. Signed-off-by: Jan Schmidt diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index ef68c33..f673990 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1279,6 +1279,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq) if (!eb) return NULL; + extent_buffer_get(eb); btrfs_tree_read_lock(eb); if (old_root) { btrfs_set_header_bytenr(eb, eb->start); @@ -1291,7 +1292,6 @@ get_old_root(struct btrfs_root *root, u64 time_seq) __tree_mod_log_rewind(eb, time_seq, tm); else WARN_ON(btrfs_header_level(eb) != 0); - extent_buffer_get(eb); WARN_ON(btrfs_header_nritems(eb) > BTRFS_NODEPTRS_PER_BLOCK(root)); return eb; -- cgit v0.10.2 From 01763a2e37425ae3f37a3dc051e0703fdade5956 Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Tue, 23 Oct 2012 15:02:12 +0200 Subject: Btrfs: comment for loop in tree_mod_log_insert_move Emphasis the way tree_mod_log_insert_move avoids adding MOD_LOG_KEY_REMOVE_WHILE_MOVING operations, depending on the direction of the move operation. Signed-off-by: Jan Schmidt diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index f673990..eba44b0 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -596,6 +596,11 @@ tree_mod_log_insert_move(struct btrfs_fs_info *fs_info, if (tree_mod_dont_log(fs_info, eb)) return 0; + /* + * When we override something during the move, we log these removals. + * This can only happen when we move towards the beginning of the + * buffer, i.e. dst_slot < src_slot. + */ for (i = 0; i + dst_slot < src_slot && i < nr_items; i++) { ret = tree_mod_log_insert_key_locked(fs_info, eb, i + dst_slot, MOD_LOG_KEY_REMOVE_WHILE_MOVING); -- cgit v0.10.2 From 3e8fa263a97079c74880675c451587bb6899e661 Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Fri, 19 Oct 2012 13:25:46 +0100 Subject: x86/efi: Fix oops caused by incorrect set_memory_uc() usage Calling __pa() with an ioremap'd address is invalid. If we encounter an efi_memory_desc_t without EFI_MEMORY_WB set in ->attribute we currently call set_memory_uc(), which in turn calls __pa() on a potentially ioremap'd address. On CONFIG_X86_32 this results in the following oops: BUG: unable to handle kernel paging request at f7f22280 IP: [] reserve_ram_pages_type+0x89/0x210 *pdpt = 0000000001978001 *pde = 0000000001ffb067 *pte = 0000000000000000 Oops: 0000 [#1] PREEMPT SMP Modules linked in: Pid: 0, comm: swapper Not tainted 3.0.0-acpi-efi-0805 #3 EIP: 0060:[] EFLAGS: 00010202 CPU: 0 EIP is at reserve_ram_pages_type+0x89/0x210 EAX: 0070e280 EBX: 38714000 ECX: f7814000 EDX: 00000000 ESI: 00000000 EDI: 38715000 EBP: c189fef0 ESP: c189fea8 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 Process swapper (pid: 0, ti=c189e000 task=c18bbe60 task.ti=c189e000) Stack: 80000200 ff108000 00000000 c189ff00 00038714 00000000 00000000 c189fed0 c104f8ca 00038714 00000000 00038715 00000000 00000000 00038715 00000000 00000010 38715000 c189ff48 c1025aff 38715000 00000000 00000010 00000000 Call Trace: [] ? page_is_ram+0x1a/0x40 [] reserve_memtype+0xdf/0x2f0 [] set_memory_uc+0x49/0xa0 [] efi_enter_virtual_mode+0x1c2/0x3aa [] start_kernel+0x291/0x2f2 [] ? loglevel+0x1b/0x1b [] i386_start_kernel+0xbf/0xc8 The only time we can call set_memory_uc() for a memory region is when it is part of the direct kernel mapping. For the case where we ioremap a memory region we must leave it alone. This patch reimplements the fix from e8c7106280a3 ("x86, efi: Calling __pa() with an ioremap()ed address is invalid") which was reverted in e1ad783b12ec because it caused a regression on some MacBooks (they hung at boot). The regression was caused because the commit only marked EFI_RUNTIME_SERVICES_DATA as E820_RESERVED_EFI, when it should have marked all regions that have the EFI_MEMORY_RUNTIME attribute. Despite first impressions, it's not possible to use ioremap_cache() to map all cached memory regions on CONFIG_X86_64 because of the way that the memory map might be configured as detailed in the following bug report, https://bugzilla.redhat.com/show_bug.cgi?id=748516 e.g. some of the EFI memory regions *need* to be mapped as part of the direct kernel mapping. Signed-off-by: Matt Fleming Cc: Matthew Garrett Cc: Zhang Rui Cc: Huang Ying Cc: Keith Packard Cc: Linus Torvalds Cc: Andrew Morton Link: http://lkml.kernel.org/r/1350649546-23541-1-git-send-email-matt@console-pimps.org Signed-off-by: Ingo Molnar diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index c9dcc18..36ff332 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -35,7 +35,7 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...); #define efi_call_virt6(f, a1, a2, a3, a4, a5, a6) \ efi_call_virt(f, a1, a2, a3, a4, a5, a6) -#define efi_ioremap(addr, size, type) ioremap_cache(addr, size) +#define efi_ioremap(addr, size, type, attr) ioremap_cache(addr, size) #else /* !CONFIG_X86_32 */ @@ -89,7 +89,7 @@ extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3, (u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6)) extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size, - u32 type); + u32 type, u64 attribute); #endif /* CONFIG_X86_32 */ @@ -98,6 +98,7 @@ extern void efi_set_executable(efi_memory_desc_t *md, bool executable); extern int efi_memblock_x86_reserve_range(void); extern void efi_call_phys_prelog(void); extern void efi_call_phys_epilog(void); +extern void efi_memory_uc(u64 addr, unsigned long size); #ifndef CONFIG_EFI /* diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index aded2a9..cb34839 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -810,6 +810,16 @@ void __iomem *efi_lookup_mapped_addr(u64 phys_addr) return NULL; } +void efi_memory_uc(u64 addr, unsigned long size) +{ + unsigned long page_shift = 1UL << EFI_PAGE_SHIFT; + u64 npages; + + npages = round_up(size, page_shift) / page_shift; + memrange_efi_to_native(&addr, &npages); + set_memory_uc(addr, npages); +} + /* * This function will switch the EFI runtime services to virtual mode. * Essentially, look through the EFI memmap and map every region that @@ -823,7 +833,7 @@ void __init efi_enter_virtual_mode(void) efi_memory_desc_t *md, *prev_md = NULL; efi_status_t status; unsigned long size; - u64 end, systab, addr, npages, end_pfn; + u64 end, systab, end_pfn; void *p, *va, *new_memmap = NULL; int count = 0; @@ -879,10 +889,14 @@ void __init efi_enter_virtual_mode(void) end_pfn = PFN_UP(end); if (end_pfn <= max_low_pfn_mapped || (end_pfn > (1UL << (32 - PAGE_SHIFT)) - && end_pfn <= max_pfn_mapped)) + && end_pfn <= max_pfn_mapped)) { va = __va(md->phys_addr); - else - va = efi_ioremap(md->phys_addr, size, md->type); + + if (!(md->attribute & EFI_MEMORY_WB)) + efi_memory_uc((u64)(unsigned long)va, size); + } else + va = efi_ioremap(md->phys_addr, size, + md->type, md->attribute); md->virt_addr = (u64) (unsigned long) va; @@ -892,13 +906,6 @@ void __init efi_enter_virtual_mode(void) continue; } - if (!(md->attribute & EFI_MEMORY_WB)) { - addr = md->virt_addr; - npages = md->num_pages; - memrange_efi_to_native(&addr, &npages); - set_memory_uc(addr, npages); - } - systab = (u64) (unsigned long) efi_phys.systab; if (md->phys_addr <= systab && systab < end) { systab += md->virt_addr - md->phys_addr; diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index ac3aa54..95fd505 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -82,7 +82,7 @@ void __init efi_call_phys_epilog(void) } void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size, - u32 type) + u32 type, u64 attribute) { unsigned long last_map_pfn; @@ -92,8 +92,11 @@ void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size, last_map_pfn = init_memory_mapping(phys_addr, phys_addr + size); if ((last_map_pfn << PAGE_SHIFT) < phys_addr + size) { unsigned long top = last_map_pfn << PAGE_SHIFT; - efi_ioremap(top, size - (top - phys_addr), type); + efi_ioremap(top, size - (top - phys_addr), type, attribute); } + if (!(attribute & EFI_MEMORY_WB)) + efi_memory_uc((u64)(unsigned long)__va(phys_addr), size); + return (void __iomem *)__va(phys_addr); } -- cgit v0.10.2 From 64dfab8e83644902ad2fd559a56c411b47e3ef3c Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 22 Oct 2012 16:51:38 +0800 Subject: perf/x86: Remove unused variable in nhmex_rbox_alter_er() The variable port is initialized but never used otherwise, so remove the unused variable. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun Cc: Yan, Zheng Cc: a.p.zijlstra@chello.nl Cc: paulus@samba.org Cc: acme@ghostprotocols.net Link: http://lkml.kernel.org/r/CAPgLHd8NZkYSkZm22FpZxiEh6HcA0q-V%3D29vdnheiDhgrJZ%2Byw@mail.gmail.com Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c index 6f87477..3cf3d97 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c @@ -1558,7 +1558,6 @@ void nhmex_rbox_alter_er(struct intel_uncore_box *box, struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; struct hw_perf_event_extra *reg1 = &hwc->extra_reg; - int port; /* adjust the main event selector and extra register index */ if (reg1->idx % 2) { @@ -1570,7 +1569,6 @@ void nhmex_rbox_alter_er(struct intel_uncore_box *box, struct perf_event *event) } /* adjust extra register config */ - port = reg1->idx / 6 + box->pmu->pmu_idx * 4; switch (reg1->idx % 6) { case 2: /* shift the 8~15 bits to the 0~7 bits */ -- cgit v0.10.2 From 94777fc51b3ad85ff9f705ddf7cdd0eb3bbad5a6 Mon Sep 17 00:00:00 2001 From: Dimitri Sivanich Date: Tue, 16 Oct 2012 07:50:21 -0500 Subject: x86/irq/ioapic: Check for valid irq_cfg pointer in smp_irq_move_cleanup_interrupt Posting this patch to fix an issue concerning sparse irq's that I raised a while back. There was discussion about adding refcounting to sparse irqs (to fix other potential race conditions), but that does not appear to have been addressed yet. This covers the only issue of this type that I've encountered in this area. A NULL pointer dereference can occur in smp_irq_move_cleanup_interrupt() if we haven't yet setup the irq_cfg pointer in the irq_desc.irq_data.chip_data. In create_irq_nr() there is a window where we have set vector_irq in __assign_irq_vector(), but not yet called irq_set_chip_data() to set the irq_cfg pointer. Should an IRQ_MOVE_CLEANUP_VECTOR hit the cpu in question during this time, smp_irq_move_cleanup_interrupt() will attempt to process the aforementioned irq, but panic when accessing irq_cfg. Only continue processing the irq if irq_cfg is non-NULL. Signed-off-by: Dimitri Sivanich Cc: Suresh Siddha Cc: Joerg Roedel Cc: Yinghai Lu Cc: Alexander Gordeev Link: http://lkml.kernel.org/r/20121016125021.GA22935@sgi.com Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index c265593..1817fa9 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -2257,6 +2257,9 @@ asmlinkage void smp_irq_move_cleanup_interrupt(void) continue; cfg = irq_cfg(irq); + if (!cfg) + continue; + raw_spin_lock(&desc->lock); /* -- cgit v0.10.2 From 5997e089e4c3a7f0958a8fb0a54ec2b5a6f06168 Mon Sep 17 00:00:00 2001 From: Barry Song Date: Thu, 27 Sep 2012 16:35:38 +0800 Subject: dmaengine: sirf: fix a typo in dma_prep_interleaved either DEV_TO_MEM or MEM_TO_DEV is supported, so change OR to AND. Signed-off-by: Barry Song Cc: stable Signed-off-by: Vinod Koul diff --git a/drivers/dma/sirf-dma.c b/drivers/dma/sirf-dma.c index 64385cd..649fd6c 100644 --- a/drivers/dma/sirf-dma.c +++ b/drivers/dma/sirf-dma.c @@ -428,7 +428,7 @@ static struct dma_async_tx_descriptor *sirfsoc_dma_prep_interleaved( unsigned long iflags; int ret; - if ((xt->dir != DMA_MEM_TO_DEV) || (xt->dir != DMA_DEV_TO_MEM)) { + if ((xt->dir != DMA_MEM_TO_DEV) && (xt->dir != DMA_DEV_TO_MEM)) { ret = -EINVAL; goto err_dir; } -- cgit v0.10.2 From 26fd12209c08fe947be1828896ef4ffc5bd0e6df Mon Sep 17 00:00:00 2001 From: Barry Song Date: Thu, 27 Sep 2012 16:36:10 +0800 Subject: dmaengine: sirf: fix a typo in moving running dma_desc to active queue list_move_tail(&schan->queued, &schan->active) makes the list_empty(schan->queued) undefined, we either should change it to: list_move_tail(schan->queued.next, &schan->active) or list_move_tail(&sdesc->node, &schan->active) Signed-off-by: Barry Song Cc: stable Signed-off-by: Vinod Koul diff --git a/drivers/dma/sirf-dma.c b/drivers/dma/sirf-dma.c index 649fd6c..d451caa 100644 --- a/drivers/dma/sirf-dma.c +++ b/drivers/dma/sirf-dma.c @@ -109,7 +109,7 @@ static void sirfsoc_dma_execute(struct sirfsoc_dma_chan *schan) sdesc = list_first_entry(&schan->queued, struct sirfsoc_dma_desc, node); /* Move the first queued descriptor to active list */ - list_move_tail(&schan->queued, &schan->active); + list_move_tail(&sdesc->node, &schan->active); /* Start the DMA transfer */ writel_relaxed(sdesc->width, sdma->base + SIRFSOC_DMA_WIDTH_0 + -- cgit v0.10.2 From 79748cdb39dbf914bc5f26c75cfd5f91d84d82c9 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 1 Oct 2012 15:28:30 +0100 Subject: ASoC: wm8994: Only enable extra BCLK cycles when required Rather than always assuming the maximum possible BCLK rate will be required generate BCLKs for stereo if either one or two channels is enabled. In order to support this we also need to ensure that only the relevant channels are enabled. Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index 2b2dadc..3fddc7a 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -1045,6 +1045,7 @@ static int aif1clk_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_codec *codec = w->codec; + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); struct wm8994 *control = codec->control_data; int mask = WM8994_AIF1DAC1L_ENA | WM8994_AIF1DAC1R_ENA; int i; @@ -1063,6 +1064,10 @@ static int aif1clk_ev(struct snd_soc_dapm_widget *w, switch (event) { case SND_SOC_DAPM_PRE_PMU: + /* Don't enable timeslot 2 if not in use */ + if (wm8994->channels[0] <= 2) + mask &= ~(WM8994_AIF1DAC2L_ENA | WM8994_AIF1DAC2R_ENA); + val = snd_soc_read(codec, WM8994_AIF1_CONTROL_1); if ((val & WM8994_AIF1ADCL_SRC) && (val & WM8994_AIF1ADCR_SRC)) @@ -2687,7 +2692,7 @@ static int wm8994_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } - bclk_rate = params_rate(params) * 4; + bclk_rate = params_rate(params); switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: bclk_rate *= 16; @@ -2708,6 +2713,17 @@ static int wm8994_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } + wm8994->channels[id] = params_channels(params); + switch (params_channels(params)) { + case 1: + case 2: + bclk_rate *= 2; + break; + default: + bclk_rate *= 4; + break; + } + /* Try to find an appropriate sample rate; look for an exact match. */ for (i = 0; i < ARRAY_SIZE(srs); i++) if (srs[i].rate == params_rate(params)) diff --git a/sound/soc/codecs/wm8994.h b/sound/soc/codecs/wm8994.h index f142ec1..ccbce57 100644 --- a/sound/soc/codecs/wm8994.h +++ b/sound/soc/codecs/wm8994.h @@ -77,6 +77,7 @@ struct wm8994_priv { int sysclk_rate[2]; int mclk[2]; int aifclk[2]; + int channels[2]; struct wm8994_fll_config fll[2], fll_suspend[2]; struct completion fll_locked[2]; bool fll_locked_irq; -- cgit v0.10.2 From b6e0e543f75729f207b9c72b0162ae61170635b2 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sun, 21 Oct 2012 12:52:39 +0200 Subject: drm/i915: clear the entire sdvo infoframe buffer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Like in the case of native hdmi, which is fixed already in commit adf00b26d18e1b3570451296e03bcb20e4798cdd Author: Paulo Zanoni Date: Tue Sep 25 13:23:34 2012 -0300 drm/i915: make sure we write all the DIP data bytes we need to clear the entire sdvo buffer to avoid upsetting the display. Since infoframe buffer writing is now a bit more elaborate, extract it into it's own function. This will be useful if we ever get around to properly update the ELD for sdvo. Also #define proper names for the two buffer indexes with fixed usage. v2: Cite the right commit above, spotted by Paulo Zanoni. v3: I'm too stupid to paste the right commit. v4: Ben Hutchings noticed that I've failed to handle an underflow in my loop logic, breaking it for i >= length + 8. Since I've just lost C programmer license, use his solution. Also, make the frustrated 0-base buffer size a notch more clear. Reported-and-tested-by: Jürg Billeter Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=25732 Cc: stable@vger.kernel.org Cc: Paulo Zanoni Cc: Ben Hutchings Reviewed-by: Rodrigo Vivi Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index c01d97d..79d308d 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -894,6 +894,45 @@ static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo) } #endif +static bool intel_sdvo_write_infoframe(struct intel_sdvo *intel_sdvo, + unsigned if_index, uint8_t tx_rate, + uint8_t *data, unsigned length) +{ + uint8_t set_buf_index[2] = { if_index, 0 }; + uint8_t hbuf_size, tmp[8]; + int i; + + if (!intel_sdvo_set_value(intel_sdvo, + SDVO_CMD_SET_HBUF_INDEX, + set_buf_index, 2)) + return false; + + if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HBUF_INFO, + &hbuf_size, 1)) + return false; + + /* Buffer size is 0 based, hooray! */ + hbuf_size++; + + DRM_DEBUG_KMS("writing sdvo hbuf: %i, hbuf_size %i, hbuf_size: %i\n", + if_index, length, hbuf_size); + + for (i = 0; i < hbuf_size; i += 8) { + memset(tmp, 0, 8); + if (i < length) + memcpy(tmp, data + i, min_t(unsigned, 8, length - i)); + + if (!intel_sdvo_set_value(intel_sdvo, + SDVO_CMD_SET_HBUF_DATA, + tmp, 8)) + return false; + } + + return intel_sdvo_set_value(intel_sdvo, + SDVO_CMD_SET_HBUF_TXRATE, + &tx_rate, 1); +} + static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo) { struct dip_infoframe avi_if = { @@ -901,11 +940,7 @@ static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo) .ver = DIP_VERSION_AVI, .len = DIP_LEN_AVI, }; - uint8_t tx_rate = SDVO_HBUF_TX_VSYNC; - uint8_t set_buf_index[2] = { 1, 0 }; uint8_t sdvo_data[4 + sizeof(avi_if.body.avi)]; - uint64_t *data = (uint64_t *)sdvo_data; - unsigned i; intel_dip_infoframe_csum(&avi_if); @@ -915,22 +950,9 @@ static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo) sdvo_data[3] = avi_if.checksum; memcpy(&sdvo_data[4], &avi_if.body, sizeof(avi_if.body.avi)); - if (!intel_sdvo_set_value(intel_sdvo, - SDVO_CMD_SET_HBUF_INDEX, - set_buf_index, 2)) - return false; - - for (i = 0; i < sizeof(sdvo_data); i += 8) { - if (!intel_sdvo_set_value(intel_sdvo, - SDVO_CMD_SET_HBUF_DATA, - data, 8)) - return false; - data++; - } - - return intel_sdvo_set_value(intel_sdvo, - SDVO_CMD_SET_HBUF_TXRATE, - &tx_rate, 1); + return intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF, + SDVO_HBUF_TX_VSYNC, + sdvo_data, sizeof(sdvo_data)); } static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo) diff --git a/drivers/gpu/drm/i915/intel_sdvo_regs.h b/drivers/gpu/drm/i915/intel_sdvo_regs.h index 9d03014..770bdd6 100644 --- a/drivers/gpu/drm/i915/intel_sdvo_regs.h +++ b/drivers/gpu/drm/i915/intel_sdvo_regs.h @@ -708,6 +708,8 @@ struct intel_sdvo_enhancements_arg { #define SDVO_CMD_SET_AUDIO_STAT 0x91 #define SDVO_CMD_GET_AUDIO_STAT 0x92 #define SDVO_CMD_SET_HBUF_INDEX 0x93 + #define SDVO_HBUF_INDEX_ELD 0 + #define SDVO_HBUF_INDEX_AVI_IF 1 #define SDVO_CMD_GET_HBUF_INDEX 0x94 #define SDVO_CMD_GET_HBUF_INFO 0x95 #define SDVO_CMD_SET_HBUF_AV_SPLIT 0x96 -- cgit v0.10.2 From 9efade1b3e981f5064f9db9ca971b4dc7557ae42 Mon Sep 17 00:00:00 2001 From: Jussi Kivilinna Date: Sun, 21 Oct 2012 20:42:28 +0300 Subject: crypto: cryptd - disable softirqs in cryptd_queue_worker to prevent data corruption cryptd_queue_worker attempts to prevent simultaneous accesses to crypto workqueue by cryptd_enqueue_request using preempt_disable/preempt_enable. However cryptd_enqueue_request might be called from softirq context, so add local_bh_disable/local_bh_enable to prevent data corruption and panics. Bug report at http://marc.info/?l=linux-crypto-vger&m=134858649616319&w=2 v2: - Disable software interrupts instead of hardware interrupts Cc: stable@vger.kernel.org Reported-by: Gurucharan Shetty Signed-off-by: Jussi Kivilinna Signed-off-by: Herbert Xu diff --git a/crypto/cryptd.c b/crypto/cryptd.c index 671d4d6..7bdd61b 100644 --- a/crypto/cryptd.c +++ b/crypto/cryptd.c @@ -137,13 +137,18 @@ static void cryptd_queue_worker(struct work_struct *work) struct crypto_async_request *req, *backlog; cpu_queue = container_of(work, struct cryptd_cpu_queue, work); - /* Only handle one request at a time to avoid hogging crypto - * workqueue. preempt_disable/enable is used to prevent - * being preempted by cryptd_enqueue_request() */ + /* + * Only handle one request at a time to avoid hogging crypto workqueue. + * preempt_disable/enable is used to prevent being preempted by + * cryptd_enqueue_request(). local_bh_disable/enable is used to prevent + * cryptd_enqueue_request() being accessed from software interrupts. + */ + local_bh_disable(); preempt_disable(); backlog = crypto_get_backlog(&cpu_queue->queue); req = crypto_dequeue_request(&cpu_queue->queue); preempt_enable(); + local_bh_enable(); if (!req) return; -- cgit v0.10.2 From 168bfeef7bba3f9784f7540b053e4ac72b769ce9 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 23 Oct 2012 14:09:39 -0700 Subject: amd64_edac:__amd64_set_scrub_rate(): avoid overindexing scrubrates[] If none of the elements in scrubrates[] matches, this loop will cause __amd64_set_scrub_rate() to incorrectly use the n+1th element. As the function is designed to use the final scrubrates[] element in the case of no match, we can fix this bug by simply terminating the array search at the n-1th element. Boris: this code is fragile anyway, see here why: http://marc.info/?l=linux-kernel&m=135102834131236&w=2 It will be rewritten more robustly soonish. Reported-by: Denis Kirjanov Cc: stable@vger.kernel.org Cc: Doug Thompson Signed-off-by: Andrew Morton Signed-off-by: Borislav Petkov diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 5a297a2..cc8e7c7 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -170,8 +170,11 @@ static int __amd64_set_scrub_rate(struct pci_dev *ctl, u32 new_bw, u32 min_rate) * memory controller and apply to register. Search for the first * bandwidth entry that is greater or equal than the setting requested * and program that. If at last entry, turn off DRAM scrubbing. + * + * If no suitable bandwidth is found, turn off DRAM scrubbing entirely + * by falling back to the last element in scrubrates[]. */ - for (i = 0; i < ARRAY_SIZE(scrubrates); i++) { + for (i = 0; i < ARRAY_SIZE(scrubrates) - 1; i++) { /* * skip scrub rates which aren't recommended * (see F10 BKDG, F3x58) @@ -181,12 +184,6 @@ static int __amd64_set_scrub_rate(struct pci_dev *ctl, u32 new_bw, u32 min_rate) if (scrubrates[i].bandwidth <= new_bw) break; - - /* - * if no suitable bandwidth found, turn off DRAM scrubbing - * entirely by falling back to the last element in the - * scrubrates array. - */ } scrubval = scrubrates[i].scrubval; -- cgit v0.10.2 From d0bea455dd48da1ecbd04fedf00eb89437455fdc Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 23 Oct 2012 11:35:47 -0400 Subject: SUNRPC: Clear the connect flag when socket state is TCP_CLOSE_WAIT This is needed to ensure that we call xprt_connect() upon the next call to call_connect(). Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org Tested-by: Chris Perl diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index aaaadfb..6e6967d 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -1516,6 +1516,7 @@ static void xs_tcp_state_change(struct sock *sk) case TCP_CLOSE_WAIT: /* The server initiated a shutdown of the socket */ xprt->connect_cookie++; + clear_bit(XPRT_CONNECTED, &xprt->state); xs_tcp_force_close(xprt); case TCP_CLOSING: /* -- cgit v0.10.2 From b9d2bb2ee537424a7f855e1f93eed44eb9ee0854 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 23 Oct 2012 11:40:02 -0400 Subject: Revert "SUNRPC: Ensure we close the socket on EPIPE errors too..." This reverts commit 55420c24a0d4d1fce70ca713f84aa00b6b74a70e. Now that we clear the connected flag when entering TCP_CLOSE_WAIT, the deadlock described in this commit is no longer possible. Instead, the resulting call to xs_tcp_shutdown() can interfere with pending reconnection attempts. Reported-by: Chris Perl Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org Tested-by: Chris Perl diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 6e6967d..7e2dd0d 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -737,10 +737,10 @@ static int xs_tcp_send_request(struct rpc_task *task) dprintk("RPC: sendmsg returned unrecognized error %d\n", -status); case -ECONNRESET: - case -EPIPE: xs_tcp_shutdown(xprt); case -ECONNREFUSED: case -ENOTCONN: + case -EPIPE: clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags); } -- cgit v0.10.2 From 4bc1e68ed6a8b59be8a79eb719be515a55c7bc68 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 23 Oct 2012 17:50:07 -0400 Subject: SUNRPC: Prevent races in xs_abort_connection() The call to xprt_disconnect_done() that is triggered by a successful connection reset will trigger another automatic wakeup of all tasks on the xprt->pending rpc_wait_queue. In particular it will cause an early wake up of the task that called xprt_connect(). All we really want to do here is clear all the socket-specific state flags, so we split that functionality out of xs_sock_mark_closed() into a helper that can be called by xs_abort_connection() Reported-by: Chris Perl Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org Tested-by: Chris Perl diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 7e2dd0d..1f105c2 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -1453,7 +1453,7 @@ static void xs_tcp_cancel_linger_timeout(struct rpc_xprt *xprt) xprt_clear_connecting(xprt); } -static void xs_sock_mark_closed(struct rpc_xprt *xprt) +static void xs_sock_reset_connection_flags(struct rpc_xprt *xprt) { smp_mb__before_clear_bit(); clear_bit(XPRT_CONNECTION_ABORT, &xprt->state); @@ -1461,6 +1461,11 @@ static void xs_sock_mark_closed(struct rpc_xprt *xprt) clear_bit(XPRT_CLOSE_WAIT, &xprt->state); clear_bit(XPRT_CLOSING, &xprt->state); smp_mb__after_clear_bit(); +} + +static void xs_sock_mark_closed(struct rpc_xprt *xprt) +{ + xs_sock_reset_connection_flags(xprt); /* Mark transport as closed and wake up all pending tasks */ xprt_disconnect_done(xprt); } @@ -2051,10 +2056,8 @@ static void xs_abort_connection(struct sock_xprt *transport) any.sa_family = AF_UNSPEC; result = kernel_connect(transport->sock, &any, sizeof(any), 0); if (!result) - xs_sock_mark_closed(&transport->xprt); - else - dprintk("RPC: AF_UNSPEC connect return code %d\n", - result); + xs_sock_reset_connection_flags(&transport->xprt); + dprintk("RPC: AF_UNSPEC connect return code %d\n", result); } static void xs_tcp_reuse_connection(struct sock_xprt *transport) -- cgit v0.10.2 From f878b657ce8e7d3673afe48110ec208a29e38c4a Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 22 Oct 2012 17:14:36 -0400 Subject: SUNRPC: Get rid of the xs_error_report socket callback Chris Perl reports that we're seeing races between the wakeup call in xs_error_report and the connect attempts. Basically, Chris has shown that in certain circumstances, the call to xs_error_report causes the rpc_task that is responsible for reconnecting to wake up early, thus triggering a disconnect and retry. Since the sk->sk_error_report() calls in the socket layer are always followed by a tcp_done() in the cases where we care about waking up the rpc_tasks, just let the state_change callbacks take responsibility for those wake ups. Reported-by: Chris Perl Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org Tested-by: Chris Perl diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 1f105c2..75853ca 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -254,7 +254,6 @@ struct sock_xprt { void (*old_data_ready)(struct sock *, int); void (*old_state_change)(struct sock *); void (*old_write_space)(struct sock *); - void (*old_error_report)(struct sock *); }; /* @@ -781,7 +780,6 @@ static void xs_save_old_callbacks(struct sock_xprt *transport, struct sock *sk) transport->old_data_ready = sk->sk_data_ready; transport->old_state_change = sk->sk_state_change; transport->old_write_space = sk->sk_write_space; - transport->old_error_report = sk->sk_error_report; } static void xs_restore_old_callbacks(struct sock_xprt *transport, struct sock *sk) @@ -789,7 +787,6 @@ static void xs_restore_old_callbacks(struct sock_xprt *transport, struct sock *s sk->sk_data_ready = transport->old_data_ready; sk->sk_state_change = transport->old_state_change; sk->sk_write_space = transport->old_write_space; - sk->sk_error_report = transport->old_error_report; } static void xs_reset_transport(struct sock_xprt *transport) @@ -1546,25 +1543,6 @@ static void xs_tcp_state_change(struct sock *sk) read_unlock_bh(&sk->sk_callback_lock); } -/** - * xs_error_report - callback mainly for catching socket errors - * @sk: socket - */ -static void xs_error_report(struct sock *sk) -{ - struct rpc_xprt *xprt; - - read_lock_bh(&sk->sk_callback_lock); - if (!(xprt = xprt_from_sock(sk))) - goto out; - dprintk("RPC: %s client %p...\n" - "RPC: error %d\n", - __func__, xprt, sk->sk_err); - xprt_wake_pending_tasks(xprt, -EAGAIN); -out: - read_unlock_bh(&sk->sk_callback_lock); -} - static void xs_write_space(struct sock *sk) { struct socket *sock; @@ -1864,7 +1842,6 @@ static int xs_local_finish_connecting(struct rpc_xprt *xprt, sk->sk_user_data = xprt; sk->sk_data_ready = xs_local_data_ready; sk->sk_write_space = xs_udp_write_space; - sk->sk_error_report = xs_error_report; sk->sk_allocation = GFP_ATOMIC; xprt_clear_connected(xprt); @@ -1989,7 +1966,6 @@ static void xs_udp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) sk->sk_user_data = xprt; sk->sk_data_ready = xs_udp_data_ready; sk->sk_write_space = xs_udp_write_space; - sk->sk_error_report = xs_error_report; sk->sk_no_check = UDP_CSUM_NORCV; sk->sk_allocation = GFP_ATOMIC; @@ -2102,7 +2078,6 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) sk->sk_data_ready = xs_tcp_data_ready; sk->sk_state_change = xs_tcp_state_change; sk->sk_write_space = xs_tcp_write_space; - sk->sk_error_report = xs_error_report; sk->sk_allocation = GFP_ATOMIC; /* socket options */ -- cgit v0.10.2 From a4ee8d978e47e79d536226dccb48991f70091168 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 23 Oct 2012 13:51:58 -0400 Subject: LOCKD: fix races in nsm_client_get Commit e9406db20fecbfcab646bad157b4cfdc7cadddfb (lockd: per-net NSM client creation and destruction helpers introduced) contains a nasty race on initialisation of the per-net NSM client because it doesn't check whether or not the client is set after grabbing the nsm_create_mutex. Reported-by: Nix Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c index e4fb3ba..fe69560 100644 --- a/fs/lockd/mon.c +++ b/fs/lockd/mon.c @@ -85,29 +85,38 @@ static struct rpc_clnt *nsm_create(struct net *net) return rpc_create(&args); } +static struct rpc_clnt *nsm_client_set(struct lockd_net *ln, + struct rpc_clnt *clnt) +{ + spin_lock(&ln->nsm_clnt_lock); + if (ln->nsm_users == 0) { + if (clnt == NULL) + goto out; + ln->nsm_clnt = clnt; + } + clnt = ln->nsm_clnt; + ln->nsm_users++; +out: + spin_unlock(&ln->nsm_clnt_lock); + return clnt; +} + static struct rpc_clnt *nsm_client_get(struct net *net) { - static DEFINE_MUTEX(nsm_create_mutex); - struct rpc_clnt *clnt; + struct rpc_clnt *clnt, *new; struct lockd_net *ln = net_generic(net, lockd_net_id); - spin_lock(&ln->nsm_clnt_lock); - if (ln->nsm_users) { - ln->nsm_users++; - clnt = ln->nsm_clnt; - spin_unlock(&ln->nsm_clnt_lock); + clnt = nsm_client_set(ln, NULL); + if (clnt != NULL) goto out; - } - spin_unlock(&ln->nsm_clnt_lock); - mutex_lock(&nsm_create_mutex); - clnt = nsm_create(net); - if (!IS_ERR(clnt)) { - ln->nsm_clnt = clnt; - smp_wmb(); - ln->nsm_users = 1; - } - mutex_unlock(&nsm_create_mutex); + clnt = new = nsm_create(net); + if (IS_ERR(clnt)) + goto out; + + clnt = nsm_client_set(ln, new); + if (clnt != new) + rpc_shutdown_client(new); out: return clnt; } -- cgit v0.10.2 From e498daa81295d02f7359af313c2b7f87e1062207 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 24 Oct 2012 08:53:35 -0400 Subject: LOCKD: Clear ln->nsm_clnt only when ln->nsm_users is zero The current code is clearing it in all cases _except_ when zero. Reported-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c index fe69560..3d7e09b 100644 --- a/fs/lockd/mon.c +++ b/fs/lockd/mon.c @@ -124,18 +124,16 @@ out: static void nsm_client_put(struct net *net) { struct lockd_net *ln = net_generic(net, lockd_net_id); - struct rpc_clnt *clnt = ln->nsm_clnt; - int shutdown = 0; + struct rpc_clnt *clnt = NULL; spin_lock(&ln->nsm_clnt_lock); - if (ln->nsm_users) { - if (--ln->nsm_users) - ln->nsm_clnt = NULL; - shutdown = !ln->nsm_users; + ln->nsm_users--; + if (ln->nsm_users == 0) { + clnt = ln->nsm_clnt; + ln->nsm_clnt = NULL; } spin_unlock(&ln->nsm_clnt_lock); - - if (shutdown) + if (clnt != NULL) rpc_shutdown_client(clnt); } -- cgit v0.10.2 From d0078e72314df2e5ede03f2102cddde06767c374 Mon Sep 17 00:00:00 2001 From: Hiro Sugawara Date: Thu, 18 Oct 2012 08:35:10 +0300 Subject: iommu/tegra: smmu: Fix deadly typo Fix a deadly typo in macro definition. Cc: stable@vger.kernel.org Signed-off-by: Hiro Sugawara Signed-off-by: Hiroshi Doyu Signed-off-by: Joerg Roedel diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 0b4d62e..a649f14 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -200,7 +200,7 @@ enum { #define SMMU_ADDR_TO_PFN(addr) ((addr) >> 12) #define SMMU_ADDR_TO_PDN(addr) ((addr) >> 22) -#define SMMU_PDN_TO_ADDR(addr) ((pdn) << 22) +#define SMMU_PDN_TO_ADDR(pdn) ((pdn) << 22) #define _READABLE (1 << SMMU_PTB_DATA_ASID_READABLE_SHIFT) #define _WRITABLE (1 << SMMU_PTB_DATA_ASID_WRITABLE_SHIFT) -- cgit v0.10.2 From 2e680dd61e80592385338bfbeb86833d1c60546c Mon Sep 17 00:00:00 2001 From: John Johansen Date: Wed, 24 Oct 2012 06:27:32 -0700 Subject: apparmor: fix IRQ stack overflow during free_profile BugLink: http://bugs.launchpad.net/bugs/1056078 Profile replacement can cause long chains of profiles to build up when the profile being replaced is pinned. When the pinned profile is finally freed, it puts the reference to its replacement, which may in turn nest another call to free_profile on the stack. Because this may happen for each profile in the replacedby chain this can result in a recusion that causes the stack to overflow. Break this nesting by directly walking the chain of replacedby profiles (ie. use iteration instead of recursion to free the list). This results in at most 2 levels of free_profile being called, while freeing a replacedby chain. Signed-off-by: John Johansen Signed-off-by: James Morris diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c index cf5fd22..8132003 100644 --- a/security/apparmor/policy.c +++ b/security/apparmor/policy.c @@ -724,6 +724,8 @@ fail: */ static void free_profile(struct aa_profile *profile) { + struct aa_profile *p; + AA_DEBUG("%s(%p)\n", __func__, profile); if (!profile) @@ -751,7 +753,27 @@ static void free_profile(struct aa_profile *profile) aa_put_dfa(profile->xmatch); aa_put_dfa(profile->policy.dfa); - aa_put_profile(profile->replacedby); + /* put the profile reference for replacedby, but not via + * put_profile(kref_put). + * replacedby can form a long chain that can result in cascading + * frees that blows the stack because kref_put makes a nested fn + * call (it looks like recursion, with free_profile calling + * free_profile) for each profile in the chain lp#1056078. + */ + for (p = profile->replacedby; p; ) { + if (atomic_dec_and_test(&p->base.count.refcount)) { + /* no more refs on p, grab its replacedby */ + struct aa_profile *next = p->replacedby; + /* break the chain */ + p->replacedby = NULL; + /* now free p, chain is broken */ + free_profile(p); + + /* follow up with next profile in the chain */ + p = next; + } else + break; + } kzfree(profile); } -- cgit v0.10.2 From 9690fb169b433a66485c808e4fc352b8a0f8d866 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 24 Oct 2012 14:19:53 +0200 Subject: mac80211: use blacklist for duplicate IE check Instead of the current whitelist which accepts duplicates only for the quiet and vendor IEs, use a blacklist of all IEs (that we currently parse) that can't be duplicated. This avoids detecting a beacon as corrupt in the future when new IEs are added that can be duplicated. Cc: stable@vger.kernel.org Signed-off-by: Paul Stewart Signed-off-by: Johannes Berg diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 22ca350..e6e4bda 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -643,13 +643,41 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, break; } - if (id != WLAN_EID_VENDOR_SPECIFIC && - id != WLAN_EID_QUIET && - test_bit(id, seen_elems)) { - elems->parse_error = true; - left -= elen; - pos += elen; - continue; + switch (id) { + case WLAN_EID_SSID: + case WLAN_EID_SUPP_RATES: + case WLAN_EID_FH_PARAMS: + case WLAN_EID_DS_PARAMS: + case WLAN_EID_CF_PARAMS: + case WLAN_EID_TIM: + case WLAN_EID_IBSS_PARAMS: + case WLAN_EID_CHALLENGE: + case WLAN_EID_RSN: + case WLAN_EID_ERP_INFO: + case WLAN_EID_EXT_SUPP_RATES: + case WLAN_EID_HT_CAPABILITY: + case WLAN_EID_HT_OPERATION: + case WLAN_EID_VHT_CAPABILITY: + case WLAN_EID_VHT_OPERATION: + case WLAN_EID_MESH_ID: + case WLAN_EID_MESH_CONFIG: + case WLAN_EID_PEER_MGMT: + case WLAN_EID_PREQ: + case WLAN_EID_PREP: + case WLAN_EID_PERR: + case WLAN_EID_RANN: + case WLAN_EID_CHANNEL_SWITCH: + case WLAN_EID_EXT_CHANSWITCH_ANN: + case WLAN_EID_COUNTRY: + case WLAN_EID_PWR_CONSTRAINT: + case WLAN_EID_TIMEOUT_INTERVAL: + if (test_bit(id, seen_elems)) { + elems->parse_error = true; + left -= elen; + pos += elen; + continue; + } + break; } if (calc_crc && id < 64 && (filter & (1ULL << id))) -- cgit v0.10.2 From 1bcb04f758c7d3ab9a454525c004bdb8c0fccd98 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Tue, 23 Oct 2012 15:53:16 +0200 Subject: drm/radeon: fix and simplify pot argument checks v3 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit GART and VRAM size limits need to be a power of two. Fix values greater than 1GB and simplify those checks a bit. v2: also fix radeon_vram_limit usage, and simplify test even more. v3: agd5f: fix spelling as noticed by Klaus Schnass Signed-off-by: Christian König Reviewed-by: Michel Dänzer Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index bd13ca0..e2f5f88 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -355,6 +355,8 @@ int radeon_wb_init(struct radeon_device *rdev) */ void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *mc, u64 base) { + uint64_t limit = (uint64_t)radeon_vram_limit << 20; + mc->vram_start = base; if (mc->mc_vram_size > (0xFFFFFFFF - base + 1)) { dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n"); @@ -368,8 +370,8 @@ void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *mc, u64 mc->mc_vram_size = mc->aper_size; } mc->vram_end = mc->vram_start + mc->mc_vram_size - 1; - if (radeon_vram_limit && radeon_vram_limit < mc->real_vram_size) - mc->real_vram_size = radeon_vram_limit; + if (limit && limit < mc->real_vram_size) + mc->real_vram_size = limit; dev_info(rdev->dev, "VRAM: %lluM 0x%016llX - 0x%016llX (%lluM used)\n", mc->mc_vram_size >> 20, mc->vram_start, mc->vram_end, mc->real_vram_size >> 20); @@ -835,6 +837,19 @@ static unsigned int radeon_vga_set_decode(void *cookie, bool state) } /** + * radeon_check_pot_argument - check that argument is a power of two + * + * @arg: value to check + * + * Validates that a certain argument is a power of two (all asics). + * Returns true if argument is valid. + */ +static bool radeon_check_pot_argument(int arg) +{ + return (arg & (arg - 1)) == 0; +} + +/** * radeon_check_arguments - validate module params * * @rdev: radeon_device pointer @@ -845,52 +860,25 @@ static unsigned int radeon_vga_set_decode(void *cookie, bool state) static void radeon_check_arguments(struct radeon_device *rdev) { /* vramlimit must be a power of two */ - switch (radeon_vram_limit) { - case 0: - case 4: - case 8: - case 16: - case 32: - case 64: - case 128: - case 256: - case 512: - case 1024: - case 2048: - case 4096: - break; - default: + if (!radeon_check_pot_argument(radeon_vram_limit)) { dev_warn(rdev->dev, "vram limit (%d) must be a power of 2\n", radeon_vram_limit); radeon_vram_limit = 0; - break; } - radeon_vram_limit = radeon_vram_limit << 20; + /* gtt size must be power of two and greater or equal to 32M */ - switch (radeon_gart_size) { - case 4: - case 8: - case 16: + if (radeon_gart_size < 32) { dev_warn(rdev->dev, "gart size (%d) too small forcing to 512M\n", radeon_gart_size); radeon_gart_size = 512; - break; - case 32: - case 64: - case 128: - case 256: - case 512: - case 1024: - case 2048: - case 4096: - break; - default: + + } else if (!radeon_check_pot_argument(radeon_gart_size)) { dev_warn(rdev->dev, "gart size (%d) must be a power of 2\n", radeon_gart_size); radeon_gart_size = 512; - break; } - rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024; + rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20; + /* AGP mode can only be -1, 1, 2, 4, 8 */ switch (radeon_agpmode) { case -1: -- cgit v0.10.2 From 59240ee3e8f0dbd3d35db90cc4960143cb14be85 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Tue, 23 Oct 2012 15:53:17 +0200 Subject: drm/radeon: use vzalloc for gart pages MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When allocating more than 2GB of GART the array of pages gets to big for kzalloc, use vzalloc instead. Signed-off-by: Christian König Reviewed-by: Michel Dänzer Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c index e9e8953..4debd60 100644 --- a/drivers/gpu/drm/radeon/radeon_gart.c +++ b/drivers/gpu/drm/radeon/radeon_gart.c @@ -355,14 +355,13 @@ int radeon_gart_init(struct radeon_device *rdev) DRM_INFO("GART: num cpu pages %u, num gpu pages %u\n", rdev->gart.num_cpu_pages, rdev->gart.num_gpu_pages); /* Allocate pages table */ - rdev->gart.pages = kzalloc(sizeof(void *) * rdev->gart.num_cpu_pages, - GFP_KERNEL); + rdev->gart.pages = vzalloc(sizeof(void *) * rdev->gart.num_cpu_pages); if (rdev->gart.pages == NULL) { radeon_gart_fini(rdev); return -ENOMEM; } - rdev->gart.pages_addr = kzalloc(sizeof(dma_addr_t) * - rdev->gart.num_cpu_pages, GFP_KERNEL); + rdev->gart.pages_addr = vzalloc(sizeof(dma_addr_t) * + rdev->gart.num_cpu_pages); if (rdev->gart.pages_addr == NULL) { radeon_gart_fini(rdev); return -ENOMEM; @@ -388,8 +387,8 @@ void radeon_gart_fini(struct radeon_device *rdev) radeon_gart_unbind(rdev, 0, rdev->gart.num_cpu_pages); } rdev->gart.ready = false; - kfree(rdev->gart.pages); - kfree(rdev->gart.pages_addr); + vfree(rdev->gart.pages); + vfree(rdev->gart.pages_addr); rdev->gart.pages = NULL; rdev->gart.pages_addr = NULL; -- cgit v0.10.2 From 6c0d112f1fb4abba724065daa8ffbc9f0e171dc1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Tue, 23 Oct 2012 15:53:18 +0200 Subject: drm/radeon: move size limits to gem_object_create. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Driver internal users shouldn't be limited in their allocation size. Signed-off-by: Christian König Reviewed-by: Michel Dänzer Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index f38fbcc..dfee7bb 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -53,6 +53,7 @@ int radeon_gem_object_create(struct radeon_device *rdev, int size, struct drm_gem_object **obj) { struct radeon_bo *robj; + unsigned long max_size; int r; *obj = NULL; @@ -60,6 +61,15 @@ int radeon_gem_object_create(struct radeon_device *rdev, int size, if (alignment < PAGE_SIZE) { alignment = PAGE_SIZE; } + + /* maximun bo size is the minimun btw visible vram and gtt size */ + max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size); + if (size > max_size) { + printk(KERN_WARNING "%s:%d alloc size %dMb bigger than %ldMb limit\n", + __func__, __LINE__, size >> 20, max_size >> 20); + return -ENOMEM; + } + r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, NULL, &robj); if (r) { if (r != -ERESTARTSYS) diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index 8b27dd6..f404944 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -105,7 +105,6 @@ int radeon_bo_create(struct radeon_device *rdev, struct radeon_bo *bo; enum ttm_bo_type type; unsigned long page_align = roundup(byte_align, PAGE_SIZE) >> PAGE_SHIFT; - unsigned long max_size = 0; size_t acc_size; int r; @@ -121,14 +120,6 @@ int radeon_bo_create(struct radeon_device *rdev, } *bo_ptr = NULL; - /* maximun bo size is the minimun btw visible vram and gtt size */ - max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size); - if ((page_align << PAGE_SHIFT) >= max_size) { - printk(KERN_WARNING "%s:%d alloc size %ldM bigger than %ldMb limit\n", - __func__, __LINE__, page_align >> (20 - PAGE_SHIFT), max_size >> 20); - return -ENOMEM; - } - acc_size = ttm_bo_dma_acc_size(&rdev->mman.bdev, size, sizeof(struct radeon_bo)); -- cgit v0.10.2 From 0fe7158c8a61ffdd71789de054fbee257c34d054 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Tue, 23 Oct 2012 15:53:19 +0200 Subject: drm/radeon: move the retry to gem_object_create MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When internal users want VRAM we shouldn't return GART memory instead. Signed-off-by: Christian König Reviewed-by: Michel Dänzer Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index dfee7bb..fe5c1f6 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -70,11 +70,17 @@ int radeon_gem_object_create(struct radeon_device *rdev, int size, return -ENOMEM; } +retry: r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, NULL, &robj); if (r) { - if (r != -ERESTARTSYS) + if (r != -ERESTARTSYS) { + if (initial_domain == RADEON_GEM_DOMAIN_VRAM) { + initial_domain |= RADEON_GEM_DOMAIN_GTT; + goto retry; + } DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n", size, initial_domain, alignment, r); + } return r; } *obj = &robj->gem_base; diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index f404944..b91118c 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -123,7 +123,6 @@ int radeon_bo_create(struct radeon_device *rdev, acc_size = ttm_bo_dma_acc_size(&rdev->mman.bdev, size, sizeof(struct radeon_bo)); -retry: bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL); if (bo == NULL) return -ENOMEM; @@ -145,15 +144,6 @@ retry: acc_size, sg, &radeon_ttm_bo_destroy); up_read(&rdev->pm.mclk_lock); if (unlikely(r != 0)) { - if (r != -ERESTARTSYS) { - if (domain == RADEON_GEM_DOMAIN_VRAM) { - domain |= RADEON_GEM_DOMAIN_GTT; - goto retry; - } - dev_err(rdev->dev, - "object_init failed for (%lu, 0x%08X)\n", - size, domain); - } return r; } *bo_ptr = bo; -- cgit v0.10.2 From c9bd773c6dd4a52f32e64af5dbbf9b3834f8569a Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 23 Oct 2012 12:42:42 -0400 Subject: drm/radeon: fix ATPX function documentation The ATPX code no longer handles ATRM. Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c index 1aa3f91..5c5e5bb 100644 --- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c +++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c @@ -373,11 +373,11 @@ static int radeon_atpx_power_state(enum vga_switcheroo_client_id id, } /** - * radeon_atpx_pci_probe_handle - look up the ATRM and ATPX handles + * radeon_atpx_pci_probe_handle - look up the ATPX handle * * @pdev: pci device * - * Look up the ATPX and ATRM handles (all asics). + * Look up the ATPX handles (all asics). * Returns true if the handles are found, false if not. */ static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev) -- cgit v0.10.2 From 0b90365e7a32317b948583c4b5c2712d84610b08 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 23 Oct 2012 17:57:54 -0400 Subject: drm/radeon: fix ATPX regression in acpi rework Copy and paste typo in the apci rework. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=49351 Signed-off-by: Alex Deucher Reviewed-by: Jerome Glisse diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c index 5c5e5bb..37f6a90 100644 --- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c +++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c @@ -87,7 +87,7 @@ static union acpi_object *radeon_atpx_call(acpi_handle handle, int function, atpx_arg_elements[1].integer.value = 0; } - status = acpi_evaluate_object(handle, "ATPX", &atpx_arg, &buffer); + status = acpi_evaluate_object(handle, NULL, &atpx_arg, &buffer); /* Fail only if calling the method fails and ATPX is supported */ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { -- cgit v0.10.2 From 11930c530f3edf81160e4962e363d579f5cdce7e Mon Sep 17 00:00:00 2001 From: Josh Wu Date: Fri, 14 Sep 2012 17:01:29 +0800 Subject: ARM: at91/tc: fix typo in the DT document Signed-off-by: Josh Wu Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Cc: stable [v3.4] diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt index ecc81e3..d187e9f 100644 --- a/Documentation/devicetree/bindings/arm/atmel-at91.txt +++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt @@ -8,7 +8,7 @@ PIT Timer required properties: shared across all System Controller members. TC/TCLIB Timer required properties: -- compatible: Should be "atmel,-pit". +- compatible: Should be "atmel,-tcb". can be "at91rm9200" or "at91sam9x5" - reg: Should contain registers location and length - interrupts: Should contain all interrupts for the TC block -- cgit v0.10.2 From 3d9a0183dd3423353e9e363bcc261c1220d05f9f Mon Sep 17 00:00:00 2001 From: Ivan Shugov Date: Wed, 24 Oct 2012 11:02:44 +0200 Subject: ARM: at91: at91sam9g10: fix SOC type detection Newer at91sam9g10 SoC revision can't be detected, so the kernel can't boot with this kind of kernel panic: "AT91: Impossible to detect the SOC type" CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177 CPU: VIVT data cache, VIVT instruction cache Machine: Atmel AT91SAM9G10-EK Ignoring tag cmdline (using the default kernel command line) bootconsole [earlycon0] enabled Memory policy: ECC disabled, Data cache writeback Kernel panic - not syncing: AT91: Impossible to detect the SOC type [] (unwind_backtrace+0x0/0xe0) from [] (panic+0x78/0x1cc) [] (panic+0x78/0x1cc) from [] (at91_map_io+0x90/0xc8) [] (at91_map_io+0x90/0xc8) from [] (paging_init+0x564/0x6d0) [] (paging_init+0x564/0x6d0) from [] (setup_arch+0x464/0x704) [] (setup_arch+0x464/0x704) from [] (start_kernel+0x6c/0x2d4) [] (start_kernel+0x6c/0x2d4) from [<20008040>] (0x20008040) The reason for this is that the Debug Unit Chip ID Register has changed between Engineering Sample and definitive revision of the SoC. Changing the check of cidr to socid will address the problem. We do not integrate this check to the list just above because we also have to make sure that the extended id is disregarded. Signed-off-by: Ivan Shugov [nicolas.ferre@atmel.com: change commit message] Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Cc: stable [v3.1] # since commit 8c3583b6 diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c index da9881b..6a3d4bb 100644 --- a/arch/arm/mach-at91/setup.c +++ b/arch/arm/mach-at91/setup.c @@ -151,7 +151,7 @@ static void __init soc_detect(u32 dbgu_base) } /* at91sam9g10 */ - if ((cidr & ~AT91_CIDR_EXT) == ARCH_ID_AT91SAM9G10) { + if ((socid & ~AT91_CIDR_EXT) == ARCH_ID_AT91SAM9G10) { at91_soc_initdata.type = AT91_SOC_SAM9G10; at91_boot_soc = at91sam9261_soc; } -- cgit v0.10.2 From 738a0fd752dc60e20beeda6f2f0f62e58dc0e344 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 24 Oct 2012 16:09:57 +0200 Subject: ARM: at91: fix external interrupts in non-DT case Management of external interrupts has changed but the non-DT code has not integrated these changes. Add a mask to pass external irq specification from SoC specific code to the at91_aic_init() function. Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Ludovic Desroches Cc: stable [v3.6] diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h index f496506..b62f560e 100644 --- a/arch/arm/mach-at91/generic.h +++ b/arch/arm/mach-at91/generic.h @@ -26,7 +26,8 @@ extern void __init at91_dt_initialize(void); extern void __init at91_init_irq_default(void); extern void __init at91_init_interrupts(unsigned int priority[]); extern void __init at91x40_init_interrupts(unsigned int priority[]); -extern void __init at91_aic_init(unsigned int priority[]); +extern void __init at91_aic_init(unsigned int priority[], + unsigned int ext_irq_mask); extern int __init at91_aic_of_init(struct device_node *node, struct device_node *parent); extern int __init at91_aic5_of_init(struct device_node *node, diff --git a/arch/arm/mach-at91/irq.c b/arch/arm/mach-at91/irq.c index 1e02c0e..febc2ee 100644 --- a/arch/arm/mach-at91/irq.c +++ b/arch/arm/mach-at91/irq.c @@ -502,14 +502,19 @@ int __init at91_aic5_of_init(struct device_node *node, /* * Initialize the AIC interrupt controller. */ -void __init at91_aic_init(unsigned int *priority) +void __init at91_aic_init(unsigned int *priority, unsigned int ext_irq_mask) { unsigned int i; int irq_base; - if (at91_aic_pm_init()) + at91_extern_irq = kzalloc(BITS_TO_LONGS(n_irqs) + * sizeof(*at91_extern_irq), GFP_KERNEL); + + if (at91_aic_pm_init() || at91_extern_irq == NULL) panic("Unable to allocate bit maps\n"); + *at91_extern_irq = ext_irq_mask; + at91_aic_base = ioremap(AT91_AIC, 512); if (!at91_aic_base) panic("Unable to ioremap AIC registers\n"); diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c index 6a3d4bb..0b32c81 100644 --- a/arch/arm/mach-at91/setup.c +++ b/arch/arm/mach-at91/setup.c @@ -47,7 +47,7 @@ void __init at91_init_irq_default(void) void __init at91_init_interrupts(unsigned int *priority) { /* Initialize the AIC interrupt controller */ - at91_aic_init(priority); + at91_aic_init(priority, at91_extern_irq); /* Enable GPIO interrupts */ at91_gpio_irq_setup(); -- cgit v0.10.2 From 69e7ea04c9365626c0963ff09bbaa3a1b49e293a Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 24 Oct 2012 16:19:47 +0200 Subject: ARM: at91: fix external interrupt specification in board code Since the switch to sparse irq, we have to add the NR_IRQS_LEGACY offset to static irq numbers. It has been forgotten on these SPI irq definitions in board code. Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Ludovic Desroches Cc: stable [v3.6] diff --git a/arch/arm/mach-at91/board-neocore926.c b/arch/arm/mach-at91/board-neocore926.c index 9cda3fd..6960778 100644 --- a/arch/arm/mach-at91/board-neocore926.c +++ b/arch/arm/mach-at91/board-neocore926.c @@ -129,7 +129,7 @@ static struct spi_board_info neocore926_spi_devices[] = { .max_speed_hz = 125000 * 16, .bus_num = 0, .platform_data = &ads_info, - .irq = AT91SAM9263_ID_IRQ1, + .irq = NR_IRQS_LEGACY + AT91SAM9263_ID_IRQ1, }, #endif }; diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c index 27b3af1..a9167dd 100644 --- a/arch/arm/mach-at91/board-sam9261ek.c +++ b/arch/arm/mach-at91/board-sam9261ek.c @@ -309,7 +309,7 @@ static struct spi_board_info ek_spi_devices[] = { .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */ .bus_num = 0, .platform_data = &ads_info, - .irq = AT91SAM9261_ID_IRQ0, + .irq = NR_IRQS_LEGACY + AT91SAM9261_ID_IRQ0, .controller_data = (void *) AT91_PIN_PA28, /* CS pin */ }, #endif diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c index 073e174..b87dbe2 100644 --- a/arch/arm/mach-at91/board-sam9263ek.c +++ b/arch/arm/mach-at91/board-sam9263ek.c @@ -132,7 +132,7 @@ static struct spi_board_info ek_spi_devices[] = { .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */ .bus_num = 0, .platform_data = &ads_info, - .irq = AT91SAM9263_ID_IRQ1, + .irq = NR_IRQS_LEGACY + AT91SAM9263_ID_IRQ1, }, #endif }; -- cgit v0.10.2 From b6edfbeacd5804038ea7ea8821a83ad704c107cc Mon Sep 17 00:00:00 2001 From: Marek Belisko Date: Mon, 1 Oct 2012 22:46:09 +0200 Subject: ARM: at91/dts: at91sam9g20ek_common: Fix typos in buttons labels. Signed-off-by: Marek Belisko Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD diff --git a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi index b06c0db..e6391a4 100644 --- a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi +++ b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi @@ -126,14 +126,14 @@ #size-cells = <0>; btn3 { - label = "Buttin 3"; + label = "Button 3"; gpios = <&pioA 30 1>; linux,code = <0x103>; gpio-key,wakeup; }; btn4 { - label = "Buttin 4"; + label = "Button 4"; gpios = <&pioA 31 1>; linux,code = <0x104>; gpio-key,wakeup; -- cgit v0.10.2 From 7840487cd6298f9f931103b558290d8d98d41c49 Mon Sep 17 00:00:00 2001 From: Bo Shen Date: Mon, 15 Oct 2012 17:30:27 +0800 Subject: ARM: at91/i2c: change id to let i2c-gpio work The i2c core driver will turn the platform device ID to busnum When using platfrom device ID as -1, it means dynamically assigned the busnum. When writing code, we need to make sure the busnum, and call i2c_register_board_info(int busnum, ...) to register device if using -1, we do not know the value of busnum In order to solve this issue, set the platform device ID as a fix number Here using 0 to match the busnum used in i2c_regsiter_board_info() Signed-off-by: Bo Shen Acked-by: Jean Delvare Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Ludovic Desroches Cc: stable [very long time] diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c index a563189..7cd8053 100644 --- a/arch/arm/mach-at91/at91rm9200_devices.c +++ b/arch/arm/mach-at91/at91rm9200_devices.c @@ -479,7 +479,7 @@ static struct i2c_gpio_platform_data pdata = { static struct platform_device at91rm9200_twi_device = { .name = "i2c-gpio", - .id = -1, + .id = 0, .dev.platform_data = &pdata, }; diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c index a76b868..44385a4 100644 --- a/arch/arm/mach-at91/at91sam9260_devices.c +++ b/arch/arm/mach-at91/at91sam9260_devices.c @@ -389,7 +389,7 @@ static struct i2c_gpio_platform_data pdata = { static struct platform_device at91sam9260_twi_device = { .name = "i2c-gpio", - .id = -1, + .id = 0, .dev.platform_data = &pdata, }; diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c index 9752f17..0256a00 100644 --- a/arch/arm/mach-at91/at91sam9261_devices.c +++ b/arch/arm/mach-at91/at91sam9261_devices.c @@ -285,7 +285,7 @@ static struct i2c_gpio_platform_data pdata = { static struct platform_device at91sam9261_twi_device = { .name = "i2c-gpio", - .id = -1, + .id = 0, .dev.platform_data = &pdata, }; diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c index 8dde220..23b6384 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c @@ -567,7 +567,7 @@ static struct i2c_gpio_platform_data pdata = { static struct platform_device at91sam9263_twi_device = { .name = "i2c-gpio", - .id = -1, + .id = 0, .dev.platform_data = &pdata, }; diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c index d6ca054..3d2c81d 100644 --- a/arch/arm/mach-at91/at91sam9rl_devices.c +++ b/arch/arm/mach-at91/at91sam9rl_devices.c @@ -314,7 +314,7 @@ static struct i2c_gpio_platform_data pdata = { static struct platform_device at91sam9rl_twi_device = { .name = "i2c-gpio", - .id = -1, + .id = 0, .dev.platform_data = &pdata, }; -- cgit v0.10.2 From 302090a66b85bb82023b07a715f9c9a347be2ac8 Mon Sep 17 00:00:00 2001 From: Bo Shen Date: Mon, 15 Oct 2012 17:30:28 +0800 Subject: ARM: at91/i2c: change id to let i2c-at91 work The i2c core driver will turn the platform device ID to busnum When using platfrom device ID as -1, it means dynamically assigned the busnum. When writing code, we need to make sure the busnum, and call i2c_register_board_info(int busnum, ...) to register device if using -1, we do not know the value of busnum In order to solve this issue, set the platform device ID as a fix number Here using 0 to match the busnum used in i2c_regsiter_board_info() Signed-off-by: Bo Shen Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Ludovic Desroches diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c index b4f0565..5269825 100644 --- a/arch/arm/mach-at91/at91rm9200.c +++ b/arch/arm/mach-at91/at91rm9200.c @@ -187,7 +187,7 @@ static struct clk_lookup periph_clocks_lookups[] = { CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk), CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk), CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk), - CLKDEV_CON_DEV_ID(NULL, "i2c-at91rm9200", &twi_clk), + CLKDEV_CON_DEV_ID(NULL, "i2c-at91rm9200.0", &twi_clk), /* fake hclk clock */ CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk), CLKDEV_CON_ID("pioA", &pioA_clk), diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c index 7cd8053..1e122bc 100644 --- a/arch/arm/mach-at91/at91rm9200_devices.c +++ b/arch/arm/mach-at91/at91rm9200_devices.c @@ -512,7 +512,7 @@ static struct resource twi_resources[] = { static struct platform_device at91rm9200_twi_device = { .name = "i2c-at91rm9200", - .id = -1, + .id = 0, .resource = twi_resources, .num_resources = ARRAY_SIZE(twi_resources), }; diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c index ad29f93..f820261 100644 --- a/arch/arm/mach-at91/at91sam9260.c +++ b/arch/arm/mach-at91/at91sam9260.c @@ -211,8 +211,8 @@ static struct clk_lookup periph_clocks_lookups[] = { CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.1", &tc4_clk), CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.1", &tc5_clk), CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc_clk), - CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260", &twi_clk), - CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20", &twi_clk), + CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260.0", &twi_clk), + CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20.0", &twi_clk), /* more usart lookup table for DT entries */ CLKDEV_CON_DEV_ID("usart", "fffff200.serial", &mck), CLKDEV_CON_DEV_ID("usart", "fffb0000.serial", &usart0_clk), diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c index 44385a4..aa1e587 100644 --- a/arch/arm/mach-at91/at91sam9260_devices.c +++ b/arch/arm/mach-at91/at91sam9260_devices.c @@ -421,7 +421,7 @@ static struct resource twi_resources[] = { }; static struct platform_device at91sam9260_twi_device = { - .id = -1, + .id = 0, .resource = twi_resources, .num_resources = ARRAY_SIZE(twi_resources), }; diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c index 8d999eb..04295c0 100644 --- a/arch/arm/mach-at91/at91sam9261.c +++ b/arch/arm/mach-at91/at91sam9261.c @@ -178,8 +178,8 @@ static struct clk_lookup periph_clocks_lookups[] = { CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk), CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk), CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &hck0), - CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9261", &twi_clk), - CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g10", &twi_clk), + CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9261.0", &twi_clk), + CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g10.0", &twi_clk), CLKDEV_CON_ID("pioA", &pioA_clk), CLKDEV_CON_ID("pioB", &pioB_clk), CLKDEV_CON_ID("pioC", &pioC_clk), diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c index 0256a00..b948769 100644 --- a/arch/arm/mach-at91/at91sam9261_devices.c +++ b/arch/arm/mach-at91/at91sam9261_devices.c @@ -317,7 +317,7 @@ static struct resource twi_resources[] = { }; static struct platform_device at91sam9261_twi_device = { - .id = -1, + .id = 0, .resource = twi_resources, .num_resources = ARRAY_SIZE(twi_resources), }; diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c index 6a01d03..d6f9c23 100644 --- a/arch/arm/mach-at91/at91sam9263.c +++ b/arch/arm/mach-at91/at91sam9263.c @@ -193,7 +193,7 @@ static struct clk_lookup periph_clocks_lookups[] = { CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.0", &spi0_clk), CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk), CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tcb_clk), - CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260", &twi_clk), + CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260.0", &twi_clk), /* fake hclk clock */ CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk), CLKDEV_CON_ID("pioA", &pioA_clk), diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c index 23b6384..cb85da2 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c @@ -600,7 +600,7 @@ static struct resource twi_resources[] = { static struct platform_device at91sam9263_twi_device = { .name = "i2c-at91sam9260", - .id = -1, + .id = 0, .resource = twi_resources, .num_resources = ARRAY_SIZE(twi_resources), }; diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c index 3d2c81d..5047bdc 100644 --- a/arch/arm/mach-at91/at91sam9rl_devices.c +++ b/arch/arm/mach-at91/at91sam9rl_devices.c @@ -347,7 +347,7 @@ static struct resource twi_resources[] = { static struct platform_device at91sam9rl_twi_device = { .name = "i2c-at91sam9g20", - .id = -1, + .id = 0, .resource = twi_resources, .num_resources = ARRAY_SIZE(twi_resources), }; -- cgit v0.10.2 From 08d04a135a1c2e24c4d4bc7bbafee5e0e58f80c6 Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Wed, 17 Oct 2012 15:41:31 +0200 Subject: ARM: at91: drop duplicated config SOC_AT91SAM9 entry Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Nicolas Ferre diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index b142071..0436242 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -21,19 +21,13 @@ config SOC_AT91SAM9 bool select CPU_ARM926T select GENERIC_CLOCKEVENTS + select MULTI_IRQ_HANDLER + select SPARSE_IRQ menu "Atmel AT91 System-on-Chip" comment "Atmel AT91 Processor" -config SOC_AT91SAM9 - bool - select AT91_SAM9_SMC - select AT91_SAM9_TIME - select CPU_ARM926T - select MULTI_IRQ_HANDLER - select SPARSE_IRQ - config SOC_AT91RM9200 bool "AT91RM9200" select CPU_ARM920T -- cgit v0.10.2 From 0c7e92075f6e61bfc90ec2664c034b04bc157315 Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Sun, 14 Oct 2012 22:15:48 +0200 Subject: rtlwifi: pass rx setup error code to caller If _rtl_usb_receive fails, the device is probably not ready. Hence the error code should be passed to the caller, so it can react accordingly and notify the user. Signed-off-by: Christian Lamparter Acked-by: Larry Finger Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c index 030beb4..e3ea4b3 100644 --- a/drivers/net/wireless/rtlwifi/usb.c +++ b/drivers/net/wireless/rtlwifi/usb.c @@ -673,7 +673,7 @@ static int rtl_usb_start(struct ieee80211_hw *hw) set_hal_start(rtlhal); /* Start bulk IN */ - _rtl_usb_receive(hw); + err = _rtl_usb_receive(hw); } return err; -- cgit v0.10.2 From 761ce8c41ed20ee3af77f2df527edc3f92e6f3bf Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Tue, 16 Oct 2012 14:34:12 +0200 Subject: rt2x00: usb: fix reset resume Patch fixes warnings like below happened on resume: WARNING: at net/mac80211/driver-ops.h:12 check_sdata_in_driver+0x32/0x34() Problem is that in __ieee80211_susped() we remove sdata (i.e wlan0 interface) and then during resume we call usb_unbind_interface() -> ieee80211_unregister_hw() with sdata removed. Patch fixes problem by adding .reset_resume calback, hence we do not unbind usb device on resume. This callback can be the same as normal .resume callback, sice we do all needed initalization during interface start, which is performed on resume [ ieee80211_resume() -> ieee80211_reconfig() -> rt2x00mac_start() -> rt2x00lib_start ]. Resolves: https://bugzilla.kernel.org/show_bug.cgi?id=48041 Reported-by: David Herrmann Reported-and-tested-by: Stephen Boyd Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka Acked-by: Gertjan van Wingerde Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c index a12e84f..6b2e1e43 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.c +++ b/drivers/net/wireless/rt2x00/rt2500usb.c @@ -1988,6 +1988,7 @@ static struct usb_driver rt2500usb_driver = { .disconnect = rt2x00usb_disconnect, .suspend = rt2x00usb_suspend, .resume = rt2x00usb_resume, + .reset_resume = rt2x00usb_resume, .disable_hub_initiated_lpm = 1, }; diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index c9e9370..3b8fb5a 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -1282,6 +1282,7 @@ static struct usb_driver rt2800usb_driver = { .disconnect = rt2x00usb_disconnect, .suspend = rt2x00usb_suspend, .resume = rt2x00usb_resume, + .reset_resume = rt2x00usb_resume, .disable_hub_initiated_lpm = 1, }; diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index e5eb43b..24eec66 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -2535,6 +2535,7 @@ static struct usb_driver rt73usb_driver = { .disconnect = rt2x00usb_disconnect, .suspend = rt2x00usb_suspend, .resume = rt2x00usb_resume, + .reset_resume = rt2x00usb_resume, .disable_hub_initiated_lpm = 1, }; -- cgit v0.10.2 From 763cbac07674a648f1377b21ca66f577c103fa9a Mon Sep 17 00:00:00 2001 From: Mohammed Shafi Shajakhan Date: Tue, 16 Oct 2012 21:31:49 +0530 Subject: ath9k_htc: Add PID/VID for a Ubiquiti WiFiStation Roger says, Ubiquiti produce 2 versions of their WiFiStation USB adapter. One has an internal antenna, the other has an external antenna and name suffix EXT. They have separate USB ids and in distribution openSUSE 12.2 (kernel 3.4.6), file /usr/share/usb.ids shows: 0cf3 Atheros Communications, Inc. ... b002 Ubiquiti WiFiStation 802.11n [Atheros AR9271] b003 Ubiquiti WiFiStationEXT 802.11n [Atheros AR9271] Add b002 Ubiquiti WiFiStation in the PID/VID list. Reported-by: Roger Price Signed-off-by: Mohammed Shafi Shajakhan Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c index 924c461..f5dda84 100644 --- a/drivers/net/wireless/ath/ath9k/hif_usb.c +++ b/drivers/net/wireless/ath/ath9k/hif_usb.c @@ -38,6 +38,7 @@ static struct usb_device_id ath9k_hif_usb_ids[] = { { USB_DEVICE(0x04CA, 0x4605) }, /* Liteon */ { USB_DEVICE(0x040D, 0x3801) }, /* VIA */ { USB_DEVICE(0x0cf3, 0xb003) }, /* Ubiquiti WifiStation Ext */ + { USB_DEVICE(0x0cf3, 0xb002) }, /* Ubiquiti WifiStation */ { USB_DEVICE(0x057c, 0x8403) }, /* AVM FRITZ!WLAN 11N v2 USB */ { USB_DEVICE(0x0cf3, 0x7015), -- cgit v0.10.2 From 73b26df5fa1a6245d6fc982362518b620bc7c2fe Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 17 Oct 2012 13:50:43 +0200 Subject: Revert "ath9k_hw: Updated AR9003 tx gain table for 5GHz" This reverts commit a240dc7b3c7463bd60cf0a9b2a90f52f78aae0fd. This commit is reducing tx power by at least 10 db on some devices, e.g. the Buffalo WZR-HP-G450H. Signed-off-by: Felix Fietkau Cc: stable@vger.kernel.org Cc: rmanohar@qca.qualcomm.com Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h b/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h index 89bf94d..6f7cf49 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h +++ b/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h @@ -534,107 +534,107 @@ static const u32 ar9300_2p2_baseband_core[][2] = { static const u32 ar9300Modes_high_power_tx_gain_table_2p2[][5] = { /* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */ - {0x0000a2dc, 0x000cfff0, 0x000cfff0, 0x03aaa352, 0x03aaa352}, - {0x0000a2e0, 0x000f0000, 0x000f0000, 0x03ccc584, 0x03ccc584}, - {0x0000a2e4, 0x03f00000, 0x03f00000, 0x03f0f800, 0x03f0f800}, + {0x0000a2dc, 0x00033800, 0x00033800, 0x03aaa352, 0x03aaa352}, + {0x0000a2e0, 0x0003c000, 0x0003c000, 0x03ccc584, 0x03ccc584}, + {0x0000a2e4, 0x03fc0000, 0x03fc0000, 0x03f0f800, 0x03f0f800}, {0x0000a2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000}, {0x0000a410, 0x000050d9, 0x000050d9, 0x000050d9, 0x000050d9}, {0x0000a500, 0x00000000, 0x00000000, 0x00000000, 0x00000000}, {0x0000a504, 0x06000003, 0x06000003, 0x04000002, 0x04000002}, {0x0000a508, 0x0a000020, 0x0a000020, 0x08000004, 0x08000004}, {0x0000a50c, 0x10000023, 0x10000023, 0x0b000200, 0x0b000200}, - {0x0000a510, 0x15000028, 0x15000028, 0x0f000202, 0x0f000202}, - {0x0000a514, 0x1b00002b, 0x1b00002b, 0x12000400, 0x12000400}, - {0x0000a518, 0x1f020028, 0x1f020028, 0x16000402, 0x16000402}, - {0x0000a51c, 0x2502002b, 0x2502002b, 0x19000404, 0x19000404}, - {0x0000a520, 0x2a04002a, 0x2a04002a, 0x1c000603, 0x1c000603}, - {0x0000a524, 0x2e06002a, 0x2e06002a, 0x21000a02, 0x21000a02}, - {0x0000a528, 0x3302202d, 0x3302202d, 0x25000a04, 0x25000a04}, - {0x0000a52c, 0x3804202c, 0x3804202c, 0x28000a20, 0x28000a20}, - {0x0000a530, 0x3c06202c, 0x3c06202c, 0x2c000e20, 0x2c000e20}, - {0x0000a534, 0x4108202d, 0x4108202d, 0x30000e22, 0x30000e22}, - {0x0000a538, 0x4506402d, 0x4506402d, 0x34000e24, 0x34000e24}, - {0x0000a53c, 0x4906222d, 0x4906222d, 0x38001640, 0x38001640}, - {0x0000a540, 0x4d062231, 0x4d062231, 0x3c001660, 0x3c001660}, - {0x0000a544, 0x50082231, 0x50082231, 0x3f001861, 0x3f001861}, - {0x0000a548, 0x5608422e, 0x5608422e, 0x43001a81, 0x43001a81}, - {0x0000a54c, 0x5a08442e, 0x5a08442e, 0x47001a83, 0x47001a83}, - {0x0000a550, 0x5e0a4431, 0x5e0a4431, 0x4a001c84, 0x4a001c84}, - {0x0000a554, 0x640a4432, 0x640a4432, 0x4e001ce3, 0x4e001ce3}, - {0x0000a558, 0x680a4434, 0x680a4434, 0x52001ce5, 0x52001ce5}, - {0x0000a55c, 0x6c0a6434, 0x6c0a6434, 0x56001ce9, 0x56001ce9}, - {0x0000a560, 0x6f0a6633, 0x6f0a6633, 0x5a001ceb, 0x5a001ceb}, - {0x0000a564, 0x730c6634, 0x730c6634, 0x5d001eec, 0x5d001eec}, - {0x0000a568, 0x730c6634, 0x730c6634, 0x5d001eec, 0x5d001eec}, - {0x0000a56c, 0x730c6634, 0x730c6634, 0x5d001eec, 0x5d001eec}, - {0x0000a570, 0x730c6634, 0x730c6634, 0x5d001eec, 0x5d001eec}, - {0x0000a574, 0x730c6634, 0x730c6634, 0x5d001eec, 0x5d001eec}, - {0x0000a578, 0x730c6634, 0x730c6634, 0x5d001eec, 0x5d001eec}, - {0x0000a57c, 0x730c6634, 0x730c6634, 0x5d001eec, 0x5d001eec}, + {0x0000a510, 0x16000220, 0x16000220, 0x0f000202, 0x0f000202}, + {0x0000a514, 0x1c000223, 0x1c000223, 0x12000400, 0x12000400}, + {0x0000a518, 0x21002220, 0x21002220, 0x16000402, 0x16000402}, + {0x0000a51c, 0x27002223, 0x27002223, 0x19000404, 0x19000404}, + {0x0000a520, 0x2b022220, 0x2b022220, 0x1c000603, 0x1c000603}, + {0x0000a524, 0x2f022222, 0x2f022222, 0x21000a02, 0x21000a02}, + {0x0000a528, 0x34022225, 0x34022225, 0x25000a04, 0x25000a04}, + {0x0000a52c, 0x3a02222a, 0x3a02222a, 0x28000a20, 0x28000a20}, + {0x0000a530, 0x3e02222c, 0x3e02222c, 0x2c000e20, 0x2c000e20}, + {0x0000a534, 0x4202242a, 0x4202242a, 0x30000e22, 0x30000e22}, + {0x0000a538, 0x4702244a, 0x4702244a, 0x34000e24, 0x34000e24}, + {0x0000a53c, 0x4b02244c, 0x4b02244c, 0x38001640, 0x38001640}, + {0x0000a540, 0x4e02246c, 0x4e02246c, 0x3c001660, 0x3c001660}, + {0x0000a544, 0x52022470, 0x52022470, 0x3f001861, 0x3f001861}, + {0x0000a548, 0x55022490, 0x55022490, 0x43001a81, 0x43001a81}, + {0x0000a54c, 0x59022492, 0x59022492, 0x47001a83, 0x47001a83}, + {0x0000a550, 0x5d022692, 0x5d022692, 0x4a001c84, 0x4a001c84}, + {0x0000a554, 0x61022892, 0x61022892, 0x4e001ce3, 0x4e001ce3}, + {0x0000a558, 0x65024890, 0x65024890, 0x52001ce5, 0x52001ce5}, + {0x0000a55c, 0x69024892, 0x69024892, 0x56001ce9, 0x56001ce9}, + {0x0000a560, 0x6e024c92, 0x6e024c92, 0x5a001ceb, 0x5a001ceb}, + {0x0000a564, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec}, + {0x0000a568, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec}, + {0x0000a56c, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec}, + {0x0000a570, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec}, + {0x0000a574, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec}, + {0x0000a578, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec}, + {0x0000a57c, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec}, {0x0000a580, 0x00800000, 0x00800000, 0x00800000, 0x00800000}, {0x0000a584, 0x06800003, 0x06800003, 0x04800002, 0x04800002}, {0x0000a588, 0x0a800020, 0x0a800020, 0x08800004, 0x08800004}, {0x0000a58c, 0x10800023, 0x10800023, 0x0b800200, 0x0b800200}, - {0x0000a590, 0x15800028, 0x15800028, 0x0f800202, 0x0f800202}, - {0x0000a594, 0x1b80002b, 0x1b80002b, 0x12800400, 0x12800400}, - {0x0000a598, 0x1f820028, 0x1f820028, 0x16800402, 0x16800402}, - {0x0000a59c, 0x2582002b, 0x2582002b, 0x19800404, 0x19800404}, - {0x0000a5a0, 0x2a84002a, 0x2a84002a, 0x1c800603, 0x1c800603}, - {0x0000a5a4, 0x2e86002a, 0x2e86002a, 0x21800a02, 0x21800a02}, - {0x0000a5a8, 0x3382202d, 0x3382202d, 0x25800a04, 0x25800a04}, - {0x0000a5ac, 0x3884202c, 0x3884202c, 0x28800a20, 0x28800a20}, - {0x0000a5b0, 0x3c86202c, 0x3c86202c, 0x2c800e20, 0x2c800e20}, - {0x0000a5b4, 0x4188202d, 0x4188202d, 0x30800e22, 0x30800e22}, - {0x0000a5b8, 0x4586402d, 0x4586402d, 0x34800e24, 0x34800e24}, - {0x0000a5bc, 0x4986222d, 0x4986222d, 0x38801640, 0x38801640}, - {0x0000a5c0, 0x4d862231, 0x4d862231, 0x3c801660, 0x3c801660}, - {0x0000a5c4, 0x50882231, 0x50882231, 0x3f801861, 0x3f801861}, - {0x0000a5c8, 0x5688422e, 0x5688422e, 0x43801a81, 0x43801a81}, - {0x0000a5cc, 0x5a88442e, 0x5a88442e, 0x47801a83, 0x47801a83}, - {0x0000a5d0, 0x5e8a4431, 0x5e8a4431, 0x4a801c84, 0x4a801c84}, - {0x0000a5d4, 0x648a4432, 0x648a4432, 0x4e801ce3, 0x4e801ce3}, - {0x0000a5d8, 0x688a4434, 0x688a4434, 0x52801ce5, 0x52801ce5}, - {0x0000a5dc, 0x6c8a6434, 0x6c8a6434, 0x56801ce9, 0x56801ce9}, - {0x0000a5e0, 0x6f8a6633, 0x6f8a6633, 0x5a801ceb, 0x5a801ceb}, - {0x0000a5e4, 0x738c6634, 0x738c6634, 0x5d801eec, 0x5d801eec}, - {0x0000a5e8, 0x738c6634, 0x738c6634, 0x5d801eec, 0x5d801eec}, - {0x0000a5ec, 0x738c6634, 0x738c6634, 0x5d801eec, 0x5d801eec}, - {0x0000a5f0, 0x738c6634, 0x738c6634, 0x5d801eec, 0x5d801eec}, - {0x0000a5f4, 0x738c6634, 0x738c6634, 0x5d801eec, 0x5d801eec}, - {0x0000a5f8, 0x738c6634, 0x738c6634, 0x5d801eec, 0x5d801eec}, - {0x0000a5fc, 0x738c6634, 0x738c6634, 0x5d801eec, 0x5d801eec}, + {0x0000a590, 0x16800220, 0x16800220, 0x0f800202, 0x0f800202}, + {0x0000a594, 0x1c800223, 0x1c800223, 0x12800400, 0x12800400}, + {0x0000a598, 0x21802220, 0x21802220, 0x16800402, 0x16800402}, + {0x0000a59c, 0x27802223, 0x27802223, 0x19800404, 0x19800404}, + {0x0000a5a0, 0x2b822220, 0x2b822220, 0x1c800603, 0x1c800603}, + {0x0000a5a4, 0x2f822222, 0x2f822222, 0x21800a02, 0x21800a02}, + {0x0000a5a8, 0x34822225, 0x34822225, 0x25800a04, 0x25800a04}, + {0x0000a5ac, 0x3a82222a, 0x3a82222a, 0x28800a20, 0x28800a20}, + {0x0000a5b0, 0x3e82222c, 0x3e82222c, 0x2c800e20, 0x2c800e20}, + {0x0000a5b4, 0x4282242a, 0x4282242a, 0x30800e22, 0x30800e22}, + {0x0000a5b8, 0x4782244a, 0x4782244a, 0x34800e24, 0x34800e24}, + {0x0000a5bc, 0x4b82244c, 0x4b82244c, 0x38801640, 0x38801640}, + {0x0000a5c0, 0x4e82246c, 0x4e82246c, 0x3c801660, 0x3c801660}, + {0x0000a5c4, 0x52822470, 0x52822470, 0x3f801861, 0x3f801861}, + {0x0000a5c8, 0x55822490, 0x55822490, 0x43801a81, 0x43801a81}, + {0x0000a5cc, 0x59822492, 0x59822492, 0x47801a83, 0x47801a83}, + {0x0000a5d0, 0x5d822692, 0x5d822692, 0x4a801c84, 0x4a801c84}, + {0x0000a5d4, 0x61822892, 0x61822892, 0x4e801ce3, 0x4e801ce3}, + {0x0000a5d8, 0x65824890, 0x65824890, 0x52801ce5, 0x52801ce5}, + {0x0000a5dc, 0x69824892, 0x69824892, 0x56801ce9, 0x56801ce9}, + {0x0000a5e0, 0x6e824c92, 0x6e824c92, 0x5a801ceb, 0x5a801ceb}, + {0x0000a5e4, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec}, + {0x0000a5e8, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec}, + {0x0000a5ec, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec}, + {0x0000a5f0, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec}, + {0x0000a5f4, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec}, + {0x0000a5f8, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec}, + {0x0000a5fc, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec}, {0x0000a600, 0x00000000, 0x00000000, 0x00000000, 0x00000000}, {0x0000a604, 0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x0000a608, 0x01804601, 0x01804601, 0x00000000, 0x00000000}, - {0x0000a60c, 0x01804601, 0x01804601, 0x00000000, 0x00000000}, - {0x0000a610, 0x01804601, 0x01804601, 0x00000000, 0x00000000}, - {0x0000a614, 0x01804601, 0x01804601, 0x01404000, 0x01404000}, - {0x0000a618, 0x01804601, 0x01804601, 0x01404501, 0x01404501}, - {0x0000a61c, 0x01804601, 0x01804601, 0x02008501, 0x02008501}, - {0x0000a620, 0x03408d02, 0x03408d02, 0x0280ca03, 0x0280ca03}, - {0x0000a624, 0x0300cc03, 0x0300cc03, 0x03010c04, 0x03010c04}, - {0x0000a628, 0x03410d04, 0x03410d04, 0x04014c04, 0x04014c04}, - {0x0000a62c, 0x03410d04, 0x03410d04, 0x04015005, 0x04015005}, - {0x0000a630, 0x03410d04, 0x03410d04, 0x04015005, 0x04015005}, - {0x0000a634, 0x03410d04, 0x03410d04, 0x04015005, 0x04015005}, - {0x0000a638, 0x03410d04, 0x03410d04, 0x04015005, 0x04015005}, - {0x0000a63c, 0x03410d04, 0x03410d04, 0x04015005, 0x04015005}, - {0x0000b2dc, 0x000cfff0, 0x000cfff0, 0x03aaa352, 0x03aaa352}, - {0x0000b2e0, 0x000f0000, 0x000f0000, 0x03ccc584, 0x03ccc584}, - {0x0000b2e4, 0x03f00000, 0x03f00000, 0x03f0f800, 0x03f0f800}, + {0x0000a608, 0x00000000, 0x00000000, 0x00000000, 0x00000000}, + {0x0000a60c, 0x00000000, 0x00000000, 0x00000000, 0x00000000}, + {0x0000a610, 0x00000000, 0x00000000, 0x00000000, 0x00000000}, + {0x0000a614, 0x02004000, 0x02004000, 0x01404000, 0x01404000}, + {0x0000a618, 0x02004801, 0x02004801, 0x01404501, 0x01404501}, + {0x0000a61c, 0x02808a02, 0x02808a02, 0x02008501, 0x02008501}, + {0x0000a620, 0x0380ce03, 0x0380ce03, 0x0280ca03, 0x0280ca03}, + {0x0000a624, 0x04411104, 0x04411104, 0x03010c04, 0x03010c04}, + {0x0000a628, 0x04411104, 0x04411104, 0x04014c04, 0x04014c04}, + {0x0000a62c, 0x04411104, 0x04411104, 0x04015005, 0x04015005}, + {0x0000a630, 0x04411104, 0x04411104, 0x04015005, 0x04015005}, + {0x0000a634, 0x04411104, 0x04411104, 0x04015005, 0x04015005}, + {0x0000a638, 0x04411104, 0x04411104, 0x04015005, 0x04015005}, + {0x0000a63c, 0x04411104, 0x04411104, 0x04015005, 0x04015005}, + {0x0000b2dc, 0x00033800, 0x00033800, 0x03aaa352, 0x03aaa352}, + {0x0000b2e0, 0x0003c000, 0x0003c000, 0x03ccc584, 0x03ccc584}, + {0x0000b2e4, 0x03fc0000, 0x03fc0000, 0x03f0f800, 0x03f0f800}, {0x0000b2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000}, - {0x0000c2dc, 0x000cfff0, 0x000cfff0, 0x03aaa352, 0x03aaa352}, - {0x0000c2e0, 0x000f0000, 0x000f0000, 0x03ccc584, 0x03ccc584}, - {0x0000c2e4, 0x03f00000, 0x03f00000, 0x03f0f800, 0x03f0f800}, + {0x0000c2dc, 0x00033800, 0x00033800, 0x03aaa352, 0x03aaa352}, + {0x0000c2e0, 0x0003c000, 0x0003c000, 0x03ccc584, 0x03ccc584}, + {0x0000c2e4, 0x03fc0000, 0x03fc0000, 0x03f0f800, 0x03f0f800}, {0x0000c2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000}, {0x00016044, 0x012492d4, 0x012492d4, 0x012492d4, 0x012492d4}, - {0x00016048, 0x61200001, 0x61200001, 0x66480001, 0x66480001}, + {0x00016048, 0x66480001, 0x66480001, 0x66480001, 0x66480001}, {0x00016068, 0x6db6db6c, 0x6db6db6c, 0x6db6db6c, 0x6db6db6c}, {0x00016444, 0x012492d4, 0x012492d4, 0x012492d4, 0x012492d4}, - {0x00016448, 0x61200001, 0x61200001, 0x66480001, 0x66480001}, + {0x00016448, 0x66480001, 0x66480001, 0x66480001, 0x66480001}, {0x00016468, 0x6db6db6c, 0x6db6db6c, 0x6db6db6c, 0x6db6db6c}, {0x00016844, 0x012492d4, 0x012492d4, 0x012492d4, 0x012492d4}, - {0x00016848, 0x61200001, 0x61200001, 0x66480001, 0x66480001}, + {0x00016848, 0x66480001, 0x66480001, 0x66480001, 0x66480001}, {0x00016868, 0x6db6db6c, 0x6db6db6c, 0x6db6db6c, 0x6db6db6c}, }; -- cgit v0.10.2 From 9495b31ad7e2b479501abb36a62789d59ee406fc Mon Sep 17 00:00:00 2001 From: Yuanhan Liu Date: Thu, 18 Oct 2012 18:10:56 +0800 Subject: brcmfmac: fix potential NULL dereference Fix a samtch warnings catched by Fengguang's 0-DAY system: + drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c:3572 brcmf_cfg80211_sched_scan_start() error: we previously assumed 'request' could be null (see line 3571) Cc: John W. Linville Signed-off-by: Yuanhan Liu Acked-by: Franky Lin Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index 411dfe7..a6f1e81 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -3569,7 +3569,7 @@ brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy, if (!request || !request->n_ssids || !request->n_match_sets) { WL_ERR("Invalid sched scan req!! n_ssids:%d\n", - request->n_ssids); + request ? request->n_ssids : 0); return -EINVAL; } -- cgit v0.10.2 From dcd5c79c9a3a7ac08bdce089fec810677ce6efe8 Mon Sep 17 00:00:00 2001 From: Bing Zhao Date: Fri, 19 Oct 2012 19:01:59 -0700 Subject: mwifiex: return -EBUSY if specific scan request cannot be honored Previous patch "mwifiex: return -EBUSY if scan request cannot.." corrected regular scan request only. There is another case for specific scan that needs the same handling. Also, removed !req_ssid check as it has already been validated by caller. Signed-off-by: Bing Zhao Signed-off-by: Paul Stewart Reviewed-by: Ryan Cairns Signed-off-by: Amitkumar Karwar Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c index 00b658d..9171aae 100644 --- a/drivers/net/wireless/mwifiex/scan.c +++ b/drivers/net/wireless/mwifiex/scan.c @@ -1843,21 +1843,18 @@ static int mwifiex_scan_specific_ssid(struct mwifiex_private *priv, struct cfg80211_ssid *req_ssid) { struct mwifiex_adapter *adapter = priv->adapter; - int ret = 0; + int ret; struct mwifiex_user_scan_cfg *scan_cfg; - if (!req_ssid) - return -1; - if (adapter->scan_processing) { - dev_dbg(adapter->dev, "cmd: Scan already in process...\n"); - return ret; + dev_err(adapter->dev, "cmd: Scan already in process...\n"); + return -EBUSY; } if (priv->scan_block) { - dev_dbg(adapter->dev, + dev_err(adapter->dev, "cmd: Scan is blocked during association...\n"); - return ret; + return -EBUSY; } scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg), GFP_KERNEL); -- cgit v0.10.2 From 6fcf2b10533bf51c67f0286ddba16e958e7ed972 Mon Sep 17 00:00:00 2001 From: Bing Zhao Date: Fri, 19 Oct 2012 19:02:00 -0700 Subject: mwifiex: clean up scan state on error De-reference and deallocate scan state on failure. Signed-off-by: Bing Zhao Signed-off-by: Paul Stewart Tested-by: Paul Stewart Reviewed-by: Ryan Cairns Signed-off-by: Amitkumar Karwar Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index 0679458..780d3e1 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -1825,8 +1825,6 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy, return -EBUSY; } - priv->scan_request = request; - priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg), GFP_KERNEL); if (!priv->user_scan_cfg) { @@ -1834,6 +1832,8 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy, return -ENOMEM; } + priv->scan_request = request; + priv->user_scan_cfg->num_ssids = request->n_ssids; priv->user_scan_cfg->ssid_list = request->ssids; @@ -1870,6 +1870,9 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy, ret = mwifiex_scan_networks(priv, priv->user_scan_cfg); if (ret) { dev_err(priv->adapter->dev, "scan failed: %d\n", ret); + priv->scan_request = NULL; + kfree(priv->user_scan_cfg); + priv->user_scan_cfg = NULL; return ret; } -- cgit v0.10.2 From f89ff6441df06abc2d95f3ef67525923032d6283 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Wed, 24 Oct 2012 08:57:16 -0500 Subject: b43: Fix oops on unload when firmware not found When b43 fails to find firmware when loaded, a subsequent unload will oops due to calling ieee80211_unregister_hw() when the corresponding register call was never made. Commit 2d838bb608e2d1f6cb4280e76748cb812dc822e7 fixed the same problem for b43legacy. Signed-off-by: Larry Finger Tested-by: Markus Kanet Cc: Stable [V3.3.0+ (the patch will need to be refactored)] Cc: Markus Kanet Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 73730e9..c5a99c8 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -5404,6 +5404,8 @@ static void b43_bcma_remove(struct bcma_device *core) cancel_work_sync(&wldev->restart_work); B43_WARN_ON(!wl); + if (!wldev->fw.ucode.data) + return; /* NULL if firmware never loaded */ if (wl->current_dev == wldev && wl->hw_registred) { b43_leds_stop(wldev); ieee80211_unregister_hw(wl->hw); @@ -5478,6 +5480,8 @@ static void b43_ssb_remove(struct ssb_device *sdev) cancel_work_sync(&wldev->restart_work); B43_WARN_ON(!wl); + if (!wldev->fw.ucode.data) + return; /* NULL if firmware never loaded */ if (wl->current_dev == wldev && wl->hw_registred) { b43_leds_stop(wldev); ieee80211_unregister_hw(wl->hw); -- cgit v0.10.2 From f7bc5051667b74c3861f79eed98c60d5c3b883f7 Mon Sep 17 00:00:00 2001 From: Lennart Sorensen Date: Wed, 24 Oct 2012 10:23:09 -0400 Subject: USB: serial: Fix memory leak in sierra_release() I found a memory leak in sierra_release() (well sierra_probe() I guess) that looses 8 bytes each time the driver releases a device. Signed-off-by: Len Sorensen Acked-by: Johan Hovold Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index 01d882c..76ef95b 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -959,6 +959,7 @@ static void sierra_release(struct usb_serial *serial) continue; kfree(portdata); } + kfree(serial->private); } #ifdef CONFIG_PM -- cgit v0.10.2 From 6ede1fd3cb404c0016de6ac529df46d561bd558b Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 22 Oct 2012 16:35:18 -0700 Subject: x86, mm: Trim memory in memblock to be page aligned We will not map partial pages, so need to make sure memblock allocation will not allocate those bytes out. Also we will use for_each_mem_pfn_range() to loop to map memory range to keep them consistent. Signed-off-by: Yinghai Lu Link: http://lkml.kernel.org/r/CAE9FiQVZirvaBMFYRfXMmWEcHbKSicQEHz4VAwUv0xFCk51ZNw@mail.gmail.com Acked-by: Jacob Shin Signed-off-by: H. Peter Anvin Cc: diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index ed858e9..df06ade 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -1077,6 +1077,9 @@ void __init memblock_x86_fill(void) memblock_add(ei->addr, ei->size); } + /* throw away partial pages */ + memblock_trim_memory(PAGE_SIZE); + memblock_dump_all(); } diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 569d67d..d452ee1 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -57,6 +57,7 @@ int memblock_add(phys_addr_t base, phys_addr_t size); int memblock_remove(phys_addr_t base, phys_addr_t size); int memblock_free(phys_addr_t base, phys_addr_t size); int memblock_reserve(phys_addr_t base, phys_addr_t size); +void memblock_trim_memory(phys_addr_t align); #ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP void __next_mem_pfn_range(int *idx, int nid, unsigned long *out_start_pfn, diff --git a/mm/memblock.c b/mm/memblock.c index 931eef1..6259055 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -930,6 +930,30 @@ int __init_memblock memblock_is_region_reserved(phys_addr_t base, phys_addr_t si return memblock_overlaps_region(&memblock.reserved, base, size) >= 0; } +void __init_memblock memblock_trim_memory(phys_addr_t align) +{ + int i; + phys_addr_t start, end, orig_start, orig_end; + struct memblock_type *mem = &memblock.memory; + + for (i = 0; i < mem->cnt; i++) { + orig_start = mem->regions[i].base; + orig_end = mem->regions[i].base + mem->regions[i].size; + start = round_up(orig_start, align); + end = round_down(orig_end, align); + + if (start == orig_start && end == orig_end) + continue; + + if (start < end) { + mem->regions[i].base = start; + mem->regions[i].size = end - start; + } else { + memblock_remove_region(mem, i); + i--; + } + } +} void __init_memblock memblock_set_current_limit(phys_addr_t limit) { -- cgit v0.10.2 From 1f2ff682ac951ed82cc043cf140d2851084512df Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 22 Oct 2012 16:35:18 -0700 Subject: x86, mm: Use memblock memory loop instead of e820_RAM We need to handle E820_RAM and E820_RESERVED_KERNEL at the same time. Also memblock has page aligned range for ram, so we could avoid mapping partial pages. Signed-off-by: Yinghai Lu Link: http://lkml.kernel.org/r/CAE9FiQVZirvaBMFYRfXMmWEcHbKSicQEHz4VAwUv0xFCk51ZNw@mail.gmail.com Acked-by: Jacob Shin Signed-off-by: H. Peter Anvin Cc: diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 468e98d..5d888af 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -921,18 +921,19 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_X86_64 if (max_pfn > max_low_pfn) { int i; - for (i = 0; i < e820.nr_map; i++) { - struct e820entry *ei = &e820.map[i]; + unsigned long start, end; + unsigned long start_pfn, end_pfn; - if (ei->addr + ei->size <= 1UL << 32) - continue; + for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, + NULL) { - if (ei->type == E820_RESERVED) + end = PFN_PHYS(end_pfn); + if (end <= (1UL<<32)) continue; + start = PFN_PHYS(start_pfn); max_pfn_mapped = init_memory_mapping( - ei->addr < 1UL << 32 ? 1UL << 32 : ei->addr, - ei->addr + ei->size); + max((1UL<<32), start), end); } /* can we preseve max_low_pfn ?*/ -- cgit v0.10.2 From a4f743851f74fc3e0cc40c13082e65c24139f481 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Tue, 16 Oct 2012 17:09:22 +0300 Subject: Revert "serial: omap: fix software flow control" This reverts commit 957ee7270d632245b43f6feb0e70d9a5e9ea6cf6 (serial: omap: fix software flow control). As Russell has pointed out, that commit isn't fixing Software Flow Control at all, and it actually makes it even more broken. It was agreed to revert this commit and use Russell's latest UART patches instead. Cc: Russell King Signed-off-by: Felipe Balbi Acked-by: Tony Lindgren Signed-off-by: Greg Kroah-Hartman diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h index f4a4cd0..1957a85 100644 --- a/arch/arm/plat-omap/include/plat/omap-serial.h +++ b/arch/arm/plat-omap/include/plat/omap-serial.h @@ -40,10 +40,10 @@ #define OMAP_UART_WER_MOD_WKUP 0X7F /* Enable XON/XOFF flow control on output */ -#define OMAP_UART_SW_TX 0x8 +#define OMAP_UART_SW_TX 0x04 /* Enable XON/XOFF flow control on input */ -#define OMAP_UART_SW_RX 0x2 +#define OMAP_UART_SW_RX 0x04 #define OMAP_UART_SYSC_RESET 0X07 #define OMAP_UART_TCR_TRIG 0X0F diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 6ede6fd..6d3d26a 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -671,19 +671,19 @@ serial_omap_configure_xonxoff /* * IXON Flag: - * Flow control for OMAP.TX - * OMAP.RX should listen for XON/XOFF + * Enable XON/XOFF flow control on output. + * Transmit XON1, XOFF1 */ if (termios->c_iflag & IXON) - up->efr |= OMAP_UART_SW_RX; + up->efr |= OMAP_UART_SW_TX; /* * IXOFF Flag: - * Flow control for OMAP.RX - * OMAP.TX should send XON/XOFF + * Enable XON/XOFF flow control on input. + * Receiver compares XON1, XOFF1. */ if (termios->c_iflag & IXOFF) - up->efr |= OMAP_UART_SW_TX; + up->efr |= OMAP_UART_SW_RX; serial_out(up, UART_EFR, up->efr | UART_EFR_ECB); serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A); -- cgit v0.10.2 From c0158ca64da5732dfb86a3f28944e9626776692f Mon Sep 17 00:00:00 2001 From: Dan Magenheimer Date: Thu, 18 Oct 2012 16:31:37 -0700 Subject: workqueue: cancel_delayed_work() should return %false if work item is idle 57b30ae77b ("workqueue: reimplement cancel_delayed_work() using try_to_grab_pending()") made cancel_delayed_work() always return %true unless someone else is also trying to cancel the work item, which is broken - if the target work item is idle, the return value should be %false. try_to_grab_pending() indicates that the target work item was idle by zero return value. Use it for return. Note that this brings cancel_delayed_work() in line with __cancel_work_timer() in return value handling. Signed-off-by: Dan Magenheimer Signed-off-by: Tejun Heo LKML-Reference: <444a6439-b1a4-4740-9e7e-bc37267cfe73@default> diff --git a/kernel/workqueue.c b/kernel/workqueue.c index d951daa..042d221 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -2982,7 +2982,7 @@ bool cancel_delayed_work(struct delayed_work *dwork) set_work_cpu_and_clear_pending(&dwork->work, work_cpu(&dwork->work)); local_irq_restore(flags); - return true; + return ret; } EXPORT_SYMBOL(cancel_delayed_work); -- cgit v0.10.2 From 844ab6f993b1d32eb40512503d35ff6ad0c57030 Mon Sep 17 00:00:00 2001 From: Jacob Shin Date: Wed, 24 Oct 2012 14:24:44 -0500 Subject: x86, mm: Find_early_table_space based on ranges that are actually being mapped Current logic finds enough space for direct mapping page tables from 0 to end. Instead, we only need to find enough space to cover mr[0].start to mr[nr_range].end -- the range that is actually being mapped by init_memory_mapping() This is needed after 1bbbbe779aabe1f0768c2bf8f8c0a5583679b54a, to address the panic reported here: https://lkml.org/lkml/2012/10/20/160 https://lkml.org/lkml/2012/10/21/157 Signed-off-by: Jacob Shin Link: http://lkml.kernel.org/r/20121024195311.GB11779@jshin-Toonie Tested-by: Tom Rini Signed-off-by: H. Peter Anvin diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 8653b3a..bc287d6 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -29,36 +29,54 @@ int direct_gbpages #endif ; -static void __init find_early_table_space(unsigned long end, int use_pse, - int use_gbpages) +struct map_range { + unsigned long start; + unsigned long end; + unsigned page_size_mask; +}; + +/* + * First calculate space needed for kernel direct mapping page tables to cover + * mr[0].start to mr[nr_range - 1].end, while accounting for possible 2M and 1GB + * pages. Then find enough contiguous space for those page tables. + */ +static void __init find_early_table_space(struct map_range *mr, int nr_range) { - unsigned long puds, pmds, ptes, tables, start = 0, good_end = end; + int i; + unsigned long puds = 0, pmds = 0, ptes = 0, tables; + unsigned long start = 0, good_end; phys_addr_t base; - puds = (end + PUD_SIZE - 1) >> PUD_SHIFT; - tables = roundup(puds * sizeof(pud_t), PAGE_SIZE); + for (i = 0; i < nr_range; i++) { + unsigned long range, extra; - if (use_gbpages) { - unsigned long extra; + range = mr[i].end - mr[i].start; + puds += (range + PUD_SIZE - 1) >> PUD_SHIFT; - extra = end - ((end>>PUD_SHIFT) << PUD_SHIFT); - pmds = (extra + PMD_SIZE - 1) >> PMD_SHIFT; - } else - pmds = (end + PMD_SIZE - 1) >> PMD_SHIFT; - - tables += roundup(pmds * sizeof(pmd_t), PAGE_SIZE); + if (mr[i].page_size_mask & (1 << PG_LEVEL_1G)) { + extra = range - ((range >> PUD_SHIFT) << PUD_SHIFT); + pmds += (extra + PMD_SIZE - 1) >> PMD_SHIFT; + } else { + pmds += (range + PMD_SIZE - 1) >> PMD_SHIFT; + } - if (use_pse) { - unsigned long extra; - - extra = end - ((end>>PMD_SHIFT) << PMD_SHIFT); + if (mr[i].page_size_mask & (1 << PG_LEVEL_2M)) { + extra = range - ((range >> PMD_SHIFT) << PMD_SHIFT); #ifdef CONFIG_X86_32 - extra += PMD_SIZE; + extra += PMD_SIZE; #endif - ptes = (extra + PAGE_SIZE - 1) >> PAGE_SHIFT; - } else - ptes = (end + PAGE_SIZE - 1) >> PAGE_SHIFT; + /* The first 2/4M doesn't use large pages. */ + if (mr[i].start < PMD_SIZE) + extra += range; + + ptes += (extra + PAGE_SIZE - 1) >> PAGE_SHIFT; + } else { + ptes += (range + PAGE_SIZE - 1) >> PAGE_SHIFT; + } + } + tables = roundup(puds * sizeof(pud_t), PAGE_SIZE); + tables += roundup(pmds * sizeof(pmd_t), PAGE_SIZE); tables += roundup(ptes * sizeof(pte_t), PAGE_SIZE); #ifdef CONFIG_X86_32 @@ -76,7 +94,7 @@ static void __init find_early_table_space(unsigned long end, int use_pse, pgt_buf_top = pgt_buf_start + (tables >> PAGE_SHIFT); printk(KERN_DEBUG "kernel direct mapping tables up to %#lx @ [mem %#010lx-%#010lx]\n", - end - 1, pgt_buf_start << PAGE_SHIFT, + mr[nr_range - 1].end - 1, pgt_buf_start << PAGE_SHIFT, (pgt_buf_top << PAGE_SHIFT) - 1); } @@ -85,12 +103,6 @@ void __init native_pagetable_reserve(u64 start, u64 end) memblock_reserve(start, end - start); } -struct map_range { - unsigned long start; - unsigned long end; - unsigned page_size_mask; -}; - #ifdef CONFIG_X86_32 #define NR_RANGE_MR 3 #else /* CONFIG_X86_64 */ @@ -263,7 +275,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, * nodes are discovered. */ if (!after_bootmem) - find_early_table_space(end, use_pse, use_gbpages); + find_early_table_space(mr, nr_range); for (i = 0; i < nr_range; i++) ret = kernel_physical_mapping_init(mr[i].start, mr[i].end, -- cgit v0.10.2 From d7870af7e2e3a91b462075ec1ca669b482215187 Mon Sep 17 00:00:00 2001 From: Michael Shigorin Date: Mon, 22 Oct 2012 12:18:56 +0300 Subject: usb-storage: add unusual_devs entry for Casio EX-N1 digital camera This commit sets removable subclass for Casio EX-N1 digital camera. The patch has been tested within an ALT Linux kernel: http://git.altlinux.org/people/led/packages/?p=kernel-image-3.0.git;a=commitdiff;h=c0fd891836e89fe0c93a4d536a59216d90e4e3e7 See also https://bugzilla.kernel.org/show_bug.cgi?id=49221 Signed-off-by: Oleksandr Chumachenko Signed-off-by: Michael Shigorin Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 779cd95..d305a5a 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1004,6 +1004,12 @@ UNUSUAL_DEV( 0x07cf, 0x1001, 0x1000, 0x9999, USB_SC_8070, USB_PR_CB, NULL, US_FL_NEED_OVERRIDE | US_FL_FIX_INQUIRY ), +/* Submitted by Oleksandr Chumachenko */ +UNUSUAL_DEV( 0x07cf, 0x1167, 0x0100, 0x0100, + "Casio", + "EX-N1 DigitalCamera", + USB_SC_8070, USB_PR_DEVICE, NULL, 0), + /* Submitted by Hartmut Wahl */ UNUSUAL_DEV( 0x0839, 0x000a, 0x0001, 0x0001, "Samsung", -- cgit v0.10.2 From e297da6e0e39b81d1abd156c5b60321b2097fb1b Mon Sep 17 00:00:00 2001 From: Sergei Trofimovich Date: Wed, 24 Oct 2012 13:43:47 +0300 Subject: staging: ipack: add missing include (implicit declaration of function 'kfree') MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On ARCH=alpha make allmodconfig: linux-2.6/drivers/staging/ipack/bridges/tpci200.c: In function 'tpci200_free_irq': linux-2.6/drivers/staging/ipack/bridges/tpci200.c:188:2: error: implicit declaration of function 'kfree' [-Werror=implicit-function-declaration] linux-2.6/drivers/staging/ipack/bridges/tpci200.c: In function 'tpci200_request_irq': linux-2.6/drivers/staging/ipack/bridges/tpci200.c:215:2: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration] Fixed by adding header CC: Greg Kroah-Hartman CC: Samuel Iglesias Gonsalvez CC: Jens Taprogge CC: "Miguel Gómez" CC: devel@driverdev.osuosl.org Signed-off-by: Sergei Trofimovich Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/ipack/bridges/tpci200.c b/drivers/staging/ipack/bridges/tpci200.c index bb8aa70..46d6657 100644 --- a/drivers/staging/ipack/bridges/tpci200.c +++ b/drivers/staging/ipack/bridges/tpci200.c @@ -12,6 +12,7 @@ */ #include +#include #include "tpci200.h" static u16 tpci200_status_timeout[] = { -- cgit v0.10.2 From 1392550240aaa72ce3a094a38bd23525cd67ce60 Mon Sep 17 00:00:00 2001 From: "K. Y. Srinivasan" Date: Fri, 12 Oct 2012 13:22:42 -0700 Subject: Drivers: hv: Cleanup error handling in vmbus_open() Fix a memory leak in the error handling path in the function vmbus_open(). Signed-off-by: K. Y. Srinivasan Reviewed-by: Haiyang Zhang Reported-by: Jason Wang Cc: Stable Acked-by: Jason Wang Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index 4065374..f4c3d28 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -146,14 +146,14 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, if (ret != 0) { err = ret; - goto errorout; + goto error0; } ret = hv_ringbuffer_init( &newchannel->inbound, in, recv_ringbuffer_size); if (ret != 0) { err = ret; - goto errorout; + goto error0; } @@ -168,7 +168,7 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, if (ret != 0) { err = ret; - goto errorout; + goto error0; } /* Create and init the channel open message */ @@ -177,7 +177,7 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, GFP_KERNEL); if (!open_info) { err = -ENOMEM; - goto errorout; + goto error0; } init_completion(&open_info->waitevent); @@ -193,7 +193,7 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, if (userdatalen > MAX_USER_DEFINED_BYTES) { err = -EINVAL; - goto errorout; + goto error0; } if (userdatalen) @@ -208,19 +208,18 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, sizeof(struct vmbus_channel_open_channel)); if (ret != 0) - goto cleanup; + goto error1; t = wait_for_completion_timeout(&open_info->waitevent, 5*HZ); if (t == 0) { err = -ETIMEDOUT; - goto errorout; + goto error1; } if (open_info->response.open_result.status) err = open_info->response.open_result.status; -cleanup: spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags); list_del(&open_info->msglistentry); spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags); @@ -228,9 +227,12 @@ cleanup: kfree(open_info); return err; -errorout: - hv_ringbuffer_cleanup(&newchannel->outbound); - hv_ringbuffer_cleanup(&newchannel->inbound); +error1: + spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags); + list_del(&open_info->msglistentry); + spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags); + +error0: free_pages((unsigned long)out, get_order(send_ringbuffer_size + recv_ringbuffer_size)); kfree(open_info); -- cgit v0.10.2 From c0d2af637863940b1a4fb208224ca7acb905c39f Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Thu, 18 Oct 2012 12:07:03 -0700 Subject: dynamic_debug: Remove unnecessary __used The __used attribute prevents gcc from eliminating unnecessary, otherwise optimized away, metadata for debugging logging messages. Remove the __used attribute. Signed-off-by: Joe Perches Acked-by: Jason Baron Signed-off-by: Greg Kroah-Hartman diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h index c18257b..6dd4787 100644 --- a/include/linux/dynamic_debug.h +++ b/include/linux/dynamic_debug.h @@ -61,7 +61,7 @@ int __dynamic_netdev_dbg(struct _ddebug *descriptor, const char *fmt, ...); #define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \ - static struct _ddebug __used __aligned(8) \ + static struct _ddebug __aligned(8) \ __attribute__((section("__verbose"))) name = { \ .modname = KBUILD_MODNAME, \ .function = __func__, \ -- cgit v0.10.2 From 66081a72517a131430dcf986775f3268aafcb546 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sat, 29 Sep 2012 22:23:19 +0200 Subject: sysfs: sysfs_pathname/sysfs_add_one: Use strlcat() instead of strcat() The warning check for duplicate sysfs entries can cause a buffer overflow when printing the warning, as strcat() doesn't check buffer sizes. Use strlcat() instead. Since strlcat() doesn't return a pointer to the passed buffer, unlike strcat(), I had to convert the nested concatenation in sysfs_add_one() to an admittedly more obscure comma operator construct, to avoid emitting code for the concatenation if CONFIG_BUG is disabled. Signed-off-by: Geert Uytterhoeven Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index 6b0bb00..2fbdff6 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -485,20 +485,18 @@ int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd) /** * sysfs_pathname - return full path to sysfs dirent * @sd: sysfs_dirent whose path we want - * @path: caller allocated buffer + * @path: caller allocated buffer of size PATH_MAX * * Gives the name "/" to the sysfs_root entry; any path returned * is relative to wherever sysfs is mounted. - * - * XXX: does no error checking on @path size */ static char *sysfs_pathname(struct sysfs_dirent *sd, char *path) { if (sd->s_parent) { sysfs_pathname(sd->s_parent, path); - strcat(path, "/"); + strlcat(path, "/", PATH_MAX); } - strcat(path, sd->s_name); + strlcat(path, sd->s_name, PATH_MAX); return path; } @@ -531,9 +529,11 @@ int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd) char *path = kzalloc(PATH_MAX, GFP_KERNEL); WARN(1, KERN_WARNING "sysfs: cannot create duplicate filename '%s'\n", - (path == NULL) ? sd->s_name : - strcat(strcat(sysfs_pathname(acxt->parent_sd, path), "/"), - sd->s_name)); + (path == NULL) ? sd->s_name + : (sysfs_pathname(acxt->parent_sd, path), + strlcat(path, "/", PATH_MAX), + strlcat(path, sd->s_name, PATH_MAX), + path)); kfree(path); } -- cgit v0.10.2 From 9bd952615a42d7e2ce3fa2c632e808e804637a1a Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Wed, 24 Oct 2012 16:12:58 -0700 Subject: libceph: avoid NULL kref_put when osd reset races with alloc_msg The ceph_on_in_msg_alloc() method drops con->mutex while it allocates a message. If that races with a timeout that resends a zillion messages and resets the connection, and the ->alloc_msg() method returns a NULL message, it will call ceph_msg_put(NULL) and BUG. Fix by only calling put if msg is non-NULL. Fixes http://tracker.newdream.net/issues/3142 Signed-off-by: Sage Weil diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index cad0d17..3ef1759 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -2750,7 +2750,8 @@ static int ceph_con_in_msg_alloc(struct ceph_connection *con, int *skip) msg = con->ops->alloc_msg(con, hdr, skip); mutex_lock(&con->mutex); if (con->state != CON_STATE_OPEN) { - ceph_msg_put(msg); + if (msg) + ceph_msg_put(msg); return -EAGAIN; } con->in_msg = msg; -- cgit v0.10.2 From b8cac0bbed33065ac42b3791efefec5dc233f7c1 Mon Sep 17 00:00:00 2001 From: Omar Ramirez Luna Date: Wed, 24 Oct 2012 17:09:15 -0500 Subject: staging: tidspbridge: request the right irq for mmu Requested irq for mmu is currently conflicting with a DMA irq due to recent changes to irq header files, now the offset for the start of the interrupt controller numbering has changed. This should be removed during a future migration to omap-iommu, for now it is hardcoded. Signed-off-by: Omar Ramirez Luna Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/tidspbridge/include/dspbridge/host_os.h b/drivers/staging/tidspbridge/include/dspbridge/host_os.h index ed00d3d..5e2f4d8 100644 --- a/drivers/staging/tidspbridge/include/dspbridge/host_os.h +++ b/drivers/staging/tidspbridge/include/dspbridge/host_os.h @@ -47,8 +47,8 @@ #include #include -/* TODO -- Remove, once BP defines them */ -#define INT_DSP_MMU_IRQ 28 +/* TODO -- Remove, once omap-iommu is used */ +#define INT_DSP_MMU_IRQ (28 + NR_IRQS) #define PRCM_VDD1 1 -- cgit v0.10.2 From 53e3e3f19f3a0c4c38e28eb4af7acfee325db375 Mon Sep 17 00:00:00 2001 From: Omar Ramirez Luna Date: Wed, 24 Oct 2012 17:09:16 -0500 Subject: staging: tidspbridge: drop const from custom mmu implementation Custom mmu functions receive a 'const void __iomem *', all the callers pass a 'void __iomem *', so drop the const to fix the warnings like: warning: passing argument 2 of '__raw_writel' discards qualifiers from pointer target type ../io.h:88: note: expected 'volatile void *' but argument is of type 'const void *' Signed-off-by: Omar Ramirez Luna Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/tidspbridge/hw/hw_mmu.c b/drivers/staging/tidspbridge/hw/hw_mmu.c index 71cb822..a159450 100644 --- a/drivers/staging/tidspbridge/hw/hw_mmu.c +++ b/drivers/staging/tidspbridge/hw/hw_mmu.c @@ -78,7 +78,7 @@ static hw_status mmu_flush_entry(const void __iomem *base_address); * INPUTS: * * Identifier : base_address - * TypE : const u32 + * Type : void __iomem * * Description : Base Address of instance of MMU module * * Identifier : page_sz @@ -112,7 +112,7 @@ static hw_status mmu_flush_entry(const void __iomem *base_address); * * METHOD: : Check the Input parameters and set the CAM entry. */ -static hw_status mmu_set_cam_entry(const void __iomem *base_address, +static hw_status mmu_set_cam_entry(void __iomem *base_address, const u32 page_sz, const u32 preserved_bit, const u32 valid_bit, @@ -124,7 +124,7 @@ static hw_status mmu_set_cam_entry(const void __iomem *base_address, * INPUTS: * * Identifier : base_address - * Type : const u32 + * Type : void __iomem * * Description : Base Address of instance of MMU module * * Identifier : physical_addr @@ -157,7 +157,7 @@ static hw_status mmu_set_cam_entry(const void __iomem *base_address, * * METHOD: : Check the Input parameters and set the RAM entry. */ -static hw_status mmu_set_ram_entry(const void __iomem *base_address, +static hw_status mmu_set_ram_entry(void __iomem *base_address, const u32 physical_addr, enum hw_endianism_t endianism, enum hw_element_size_t element_size, @@ -165,7 +165,7 @@ static hw_status mmu_set_ram_entry(const void __iomem *base_address, /* HW FUNCTIONS */ -hw_status hw_mmu_enable(const void __iomem *base_address) +hw_status hw_mmu_enable(void __iomem *base_address) { hw_status status = 0; @@ -174,7 +174,7 @@ hw_status hw_mmu_enable(const void __iomem *base_address) return status; } -hw_status hw_mmu_disable(const void __iomem *base_address) +hw_status hw_mmu_disable(void __iomem *base_address) { hw_status status = 0; @@ -183,7 +183,7 @@ hw_status hw_mmu_disable(const void __iomem *base_address) return status; } -hw_status hw_mmu_num_locked_set(const void __iomem *base_address, +hw_status hw_mmu_num_locked_set(void __iomem *base_address, u32 num_locked_entries) { hw_status status = 0; @@ -193,7 +193,7 @@ hw_status hw_mmu_num_locked_set(const void __iomem *base_address, return status; } -hw_status hw_mmu_victim_num_set(const void __iomem *base_address, +hw_status hw_mmu_victim_num_set(void __iomem *base_address, u32 victim_entry_num) { hw_status status = 0; @@ -203,7 +203,7 @@ hw_status hw_mmu_victim_num_set(const void __iomem *base_address, return status; } -hw_status hw_mmu_event_ack(const void __iomem *base_address, u32 irq_mask) +hw_status hw_mmu_event_ack(void __iomem *base_address, u32 irq_mask) { hw_status status = 0; @@ -212,7 +212,7 @@ hw_status hw_mmu_event_ack(const void __iomem *base_address, u32 irq_mask) return status; } -hw_status hw_mmu_event_disable(const void __iomem *base_address, u32 irq_mask) +hw_status hw_mmu_event_disable(void __iomem *base_address, u32 irq_mask) { hw_status status = 0; u32 irq_reg; @@ -224,7 +224,7 @@ hw_status hw_mmu_event_disable(const void __iomem *base_address, u32 irq_mask) return status; } -hw_status hw_mmu_event_enable(const void __iomem *base_address, u32 irq_mask) +hw_status hw_mmu_event_enable(void __iomem *base_address, u32 irq_mask) { hw_status status = 0; u32 irq_reg; @@ -236,7 +236,7 @@ hw_status hw_mmu_event_enable(const void __iomem *base_address, u32 irq_mask) return status; } -hw_status hw_mmu_event_status(const void __iomem *base_address, u32 *irq_mask) +hw_status hw_mmu_event_status(void __iomem *base_address, u32 *irq_mask) { hw_status status = 0; @@ -245,7 +245,7 @@ hw_status hw_mmu_event_status(const void __iomem *base_address, u32 *irq_mask) return status; } -hw_status hw_mmu_fault_addr_read(const void __iomem *base_address, u32 *addr) +hw_status hw_mmu_fault_addr_read(void __iomem *base_address, u32 *addr) { hw_status status = 0; @@ -255,7 +255,7 @@ hw_status hw_mmu_fault_addr_read(const void __iomem *base_address, u32 *addr) return status; } -hw_status hw_mmu_ttb_set(const void __iomem *base_address, u32 ttb_phys_addr) +hw_status hw_mmu_ttb_set(void __iomem *base_address, u32 ttb_phys_addr) { hw_status status = 0; u32 load_ttb; @@ -267,7 +267,7 @@ hw_status hw_mmu_ttb_set(const void __iomem *base_address, u32 ttb_phys_addr) return status; } -hw_status hw_mmu_twl_enable(const void __iomem *base_address) +hw_status hw_mmu_twl_enable(void __iomem *base_address) { hw_status status = 0; @@ -276,7 +276,7 @@ hw_status hw_mmu_twl_enable(const void __iomem *base_address) return status; } -hw_status hw_mmu_twl_disable(const void __iomem *base_address) +hw_status hw_mmu_twl_disable(void __iomem *base_address) { hw_status status = 0; @@ -323,7 +323,7 @@ hw_status hw_mmu_tlb_flush(const void __iomem *base_address, u32 virtual_addr, return status; } -hw_status hw_mmu_tlb_add(const void __iomem *base_address, +hw_status hw_mmu_tlb_add(void __iomem *base_address, u32 physical_addr, u32 virtual_addr, u32 page_sz, @@ -516,7 +516,7 @@ static hw_status mmu_flush_entry(const void __iomem *base_address) } /* mmu_set_cam_entry */ -static hw_status mmu_set_cam_entry(const void __iomem *base_address, +static hw_status mmu_set_cam_entry(void __iomem *base_address, const u32 page_sz, const u32 preserved_bit, const u32 valid_bit, @@ -536,7 +536,7 @@ static hw_status mmu_set_cam_entry(const void __iomem *base_address, } /* mmu_set_ram_entry */ -static hw_status mmu_set_ram_entry(const void __iomem *base_address, +static hw_status mmu_set_ram_entry(void __iomem *base_address, const u32 physical_addr, enum hw_endianism_t endianism, enum hw_element_size_t element_size, @@ -556,7 +556,7 @@ static hw_status mmu_set_ram_entry(const void __iomem *base_address, } -void hw_mmu_tlb_flush_all(const void __iomem *base) +void hw_mmu_tlb_flush_all(void __iomem *base) { __raw_writel(1, base + MMU_GFLUSH); } diff --git a/drivers/staging/tidspbridge/hw/hw_mmu.h b/drivers/staging/tidspbridge/hw/hw_mmu.h index 1458a2c..1cdd082 100644 --- a/drivers/staging/tidspbridge/hw/hw_mmu.h +++ b/drivers/staging/tidspbridge/hw/hw_mmu.h @@ -42,44 +42,44 @@ struct hw_mmu_map_attrs_t { bool donotlockmpupage; }; -extern hw_status hw_mmu_enable(const void __iomem *base_address); +extern hw_status hw_mmu_enable(void __iomem *base_address); -extern hw_status hw_mmu_disable(const void __iomem *base_address); +extern hw_status hw_mmu_disable(void __iomem *base_address); -extern hw_status hw_mmu_num_locked_set(const void __iomem *base_address, +extern hw_status hw_mmu_num_locked_set(void __iomem *base_address, u32 num_locked_entries); -extern hw_status hw_mmu_victim_num_set(const void __iomem *base_address, +extern hw_status hw_mmu_victim_num_set(void __iomem *base_address, u32 victim_entry_num); /* For MMU faults */ -extern hw_status hw_mmu_event_ack(const void __iomem *base_address, +extern hw_status hw_mmu_event_ack(void __iomem *base_address, u32 irq_mask); -extern hw_status hw_mmu_event_disable(const void __iomem *base_address, +extern hw_status hw_mmu_event_disable(void __iomem *base_address, u32 irq_mask); -extern hw_status hw_mmu_event_enable(const void __iomem *base_address, +extern hw_status hw_mmu_event_enable(void __iomem *base_address, u32 irq_mask); -extern hw_status hw_mmu_event_status(const void __iomem *base_address, +extern hw_status hw_mmu_event_status(void __iomem *base_address, u32 *irq_mask); -extern hw_status hw_mmu_fault_addr_read(const void __iomem *base_address, +extern hw_status hw_mmu_fault_addr_read(void __iomem *base_address, u32 *addr); /* Set the TT base address */ -extern hw_status hw_mmu_ttb_set(const void __iomem *base_address, +extern hw_status hw_mmu_ttb_set(void __iomem *base_address, u32 ttb_phys_addr); -extern hw_status hw_mmu_twl_enable(const void __iomem *base_address); +extern hw_status hw_mmu_twl_enable(void __iomem *base_address); -extern hw_status hw_mmu_twl_disable(const void __iomem *base_address); +extern hw_status hw_mmu_twl_disable(void __iomem *base_address); extern hw_status hw_mmu_tlb_flush(const void __iomem *base_address, u32 virtual_addr, u32 page_sz); -extern hw_status hw_mmu_tlb_add(const void __iomem *base_address, +extern hw_status hw_mmu_tlb_add(void __iomem *base_address, u32 physical_addr, u32 virtual_addr, u32 page_sz, @@ -97,7 +97,7 @@ extern hw_status hw_mmu_pte_set(const u32 pg_tbl_va, extern hw_status hw_mmu_pte_clear(const u32 pg_tbl_va, u32 virtual_addr, u32 page_size); -void hw_mmu_tlb_flush_all(const void __iomem *base); +void hw_mmu_tlb_flush_all(void __iomem *base); static inline u32 hw_mmu_pte_addr_l1(u32 l1_base, u32 va) { -- cgit v0.10.2 From 3c8676967bce1c9b8723129625a2125b7704674f Mon Sep 17 00:00:00 2001 From: Omar Ramirez Luna Date: Wed, 24 Oct 2012 17:09:17 -0500 Subject: staging: tidspbridge: change type to __iomem for per and core addresses Currently per_pm_base and core_pm_base are declared as u32, however _raw_* changed the data type, since: 195bbca ARM: 7500/1: io: avoid writeback addressing modes for __raw_ accessors This should fix warnings for per and core accesses: warning: passing argument 2 of '__raw_writel' makes pointer from integer without a cast ../io.h:88: note: expected 'volatile void *' but argument is of type 'u32' Signed-off-by: Omar Ramirez Luna Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/tidspbridge/include/dspbridge/cfgdefs.h b/drivers/staging/tidspbridge/include/dspbridge/cfgdefs.h index 60a2781..b32c756 100644 --- a/drivers/staging/tidspbridge/include/dspbridge/cfgdefs.h +++ b/drivers/staging/tidspbridge/include/dspbridge/cfgdefs.h @@ -53,8 +53,8 @@ struct cfg_hostres { u32 chnl_buf_size; u32 num_chnls; void __iomem *per_base; - u32 per_pm_base; - u32 core_pm_base; + void __iomem *per_pm_base; + void __iomem *core_pm_base; void __iomem *dmmu_base; }; diff --git a/drivers/staging/tidspbridge/rmgr/drv.c b/drivers/staging/tidspbridge/rmgr/drv.c index 6795205..db1da28 100644 --- a/drivers/staging/tidspbridge/rmgr/drv.c +++ b/drivers/staging/tidspbridge/rmgr/drv.c @@ -667,10 +667,10 @@ int drv_request_bridge_res_dsp(void **phost_resources) OMAP_DSP_MEM3_SIZE); host_res->per_base = ioremap(OMAP_PER_CM_BASE, OMAP_PER_CM_SIZE); - host_res->per_pm_base = (u32) ioremap(OMAP_PER_PRM_BASE, - OMAP_PER_PRM_SIZE); - host_res->core_pm_base = (u32) ioremap(OMAP_CORE_PRM_BASE, - OMAP_CORE_PRM_SIZE); + host_res->per_pm_base = ioremap(OMAP_PER_PRM_BASE, + OMAP_PER_PRM_SIZE); + host_res->core_pm_base = ioremap(OMAP_CORE_PRM_BASE, + OMAP_CORE_PRM_SIZE); host_res->dmmu_base = ioremap(OMAP_DMMU_BASE, OMAP_DMMU_SIZE); -- cgit v0.10.2 From 7de8a0cf48a023058642c69145630d51709aa174 Mon Sep 17 00:00:00 2001 From: Omar Ramirez Luna Date: Wed, 24 Oct 2012 17:09:18 -0500 Subject: staging: tidspbridge: ioremap dsp sync addr Change the type of sync_addr to 'void __iomem *' and ioremap the physical address in the shared memory so we can access it using _raw_*. While at it, drop 'dw_' prefix. Fix the warning associated with dsp's sync_addr: warning: passing argument 2 of '__raw_writel' makes pointer from integer without a cast ../io.h:88: note: expected 'volatile void *' but argument is of type 'u32' Signed-off-by: Omar Ramirez Luna Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/tidspbridge/core/tiomap3430.c b/drivers/staging/tidspbridge/core/tiomap3430.c index 066a3ce..f619fb3 100644 --- a/drivers/staging/tidspbridge/core/tiomap3430.c +++ b/drivers/staging/tidspbridge/core/tiomap3430.c @@ -126,7 +126,8 @@ static int mem_map_vmalloc(struct bridge_dev_context *dev_context, u32 ul_num_bytes, struct hw_mmu_map_attrs_t *hw_attrs); -bool wait_for_start(struct bridge_dev_context *dev_context, u32 dw_sync_addr); +bool wait_for_start(struct bridge_dev_context *dev_context, + void __iomem *sync_addr); /* ----------------------------------- Globals */ @@ -363,10 +364,11 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt, { int status = 0; struct bridge_dev_context *dev_context = dev_ctxt; - u32 dw_sync_addr = 0; + void __iomem *sync_addr; u32 ul_shm_base; /* Gpp Phys SM base addr(byte) */ u32 ul_shm_base_virt; /* Dsp Virt SM base addr */ u32 ul_tlb_base_virt; /* Base of MMU TLB entry */ + u32 shm_sync_pa; /* Offset of shm_base_virt from tlb_base_virt */ u32 ul_shm_offset_virt; s32 entry_ndx; @@ -397,15 +399,22 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt, /* Kernel logical address */ ul_shm_base = dev_context->atlb_entry[0].gpp_va + ul_shm_offset_virt; + /* SHM physical sync address */ + shm_sync_pa = dev_context->atlb_entry[0].gpp_pa + ul_shm_offset_virt + + SHMSYNCOFFSET; + /* 2nd wd is used as sync field */ - dw_sync_addr = ul_shm_base + SHMSYNCOFFSET; + sync_addr = ioremap(shm_sync_pa, SZ_32); + if (!sync_addr) + return -ENOMEM; + /* Write a signature into the shm base + offset; this will * get cleared when the DSP program starts. */ if ((ul_shm_base_virt == 0) || (ul_shm_base == 0)) { pr_err("%s: Illegal SM base\n", __func__); status = -EPERM; } else - __raw_writel(0xffffffff, dw_sync_addr); + __raw_writel(0xffffffff, sync_addr); if (!status) { resources = dev_context->resources; @@ -419,8 +428,10 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt, * function is made available. */ void __iomem *ctrl = ioremap(0x48002000, SZ_4K); - if (!ctrl) + if (!ctrl) { + iounmap(sync_addr); return -ENOMEM; + } (*pdata->dsp_prm_rmw_bits)(OMAP3430_RST1_IVA2_MASK, OMAP3430_RST1_IVA2_MASK, OMAP3430_IVA2_MOD, @@ -588,15 +599,15 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt, (*pdata->dsp_prm_rmw_bits)(OMAP3430_RST1_IVA2_MASK, 0, OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL); - dev_dbg(bridge, "Waiting for Sync @ 0x%x\n", dw_sync_addr); + dev_dbg(bridge, "Waiting for Sync @ 0x%x\n", *(u32 *)sync_addr); dev_dbg(bridge, "DSP c_int00 Address = 0x%x\n", dsp_addr); if (dsp_debug) - while (__raw_readw(dw_sync_addr)) + while (__raw_readw(sync_addr)) ; /* Wait for DSP to clear word in shared memory */ /* Read the Location */ - if (!wait_for_start(dev_context, dw_sync_addr)) + if (!wait_for_start(dev_context, sync_addr)) status = -ETIMEDOUT; dev_get_symbol(dev_context->dev_obj, "_WDT_enable", &wdt_en); @@ -612,7 +623,7 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt, /* Write the synchronization bit to indicate the * completion of OPP table update to DSP */ - __raw_writel(0XCAFECAFE, dw_sync_addr); + __raw_writel(0XCAFECAFE, sync_addr); /* update board state */ dev_context->brd_state = BRD_RUNNING; @@ -621,6 +632,9 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt, dev_context->brd_state = BRD_UNKNOWN; } } + + iounmap(sync_addr); + return status; } @@ -1796,12 +1810,13 @@ static int mem_map_vmalloc(struct bridge_dev_context *dev_context, * ======== wait_for_start ======== * Wait for the singal from DSP that it has started, or time out. */ -bool wait_for_start(struct bridge_dev_context *dev_context, u32 dw_sync_addr) +bool wait_for_start(struct bridge_dev_context *dev_context, + void __iomem *sync_addr) { u16 timeout = TIHELEN_ACKTIMEOUT; /* Wait for response from board */ - while (__raw_readw(dw_sync_addr) && --timeout) + while (__raw_readw(sync_addr) && --timeout) udelay(10); /* If timed out: return false */ -- cgit v0.10.2 From 5ae4fd94a3b2d2b285cff294a5a23c52e21db208 Mon Sep 17 00:00:00 2001 From: Omar Ramirez Luna Date: Wed, 24 Oct 2012 17:09:19 -0500 Subject: staging: tidspbridge: ioremap physical address of the stack segment in shm Due to data type change, readl can no longer receive a u32. Signed-off-by: Omar Ramirez Luna Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/tidspbridge/rmgr/node.c b/drivers/staging/tidspbridge/rmgr/node.c index c2fc613..294e9b4 100644 --- a/drivers/staging/tidspbridge/rmgr/node.c +++ b/drivers/staging/tidspbridge/rmgr/node.c @@ -304,8 +304,7 @@ int node_allocate(struct proc_object *hprocessor, u32 pul_value; u32 dynext_base; u32 off_set = 0; - u32 ul_stack_seg_addr, ul_stack_seg_val; - u32 ul_gpp_mem_base; + u32 ul_stack_seg_val; struct cfg_hostres *host_res; struct bridge_dev_context *pbridge_context; u32 mapped_addr = 0; @@ -581,6 +580,9 @@ func_cont: if (strcmp((char *) pnode->dcd_props.obj_data.node_obj.ndb_props. stack_seg_name, STACKSEGLABEL) == 0) { + void __iomem *stack_seg; + u32 stack_seg_pa; + status = hnode_mgr->nldr_fxns. get_fxn_addr(pnode->nldr_node_obj, "DYNEXT_BEG", @@ -608,14 +610,21 @@ func_cont: goto func_end; } - ul_gpp_mem_base = (u32) host_res->mem_base[1]; off_set = pul_value - dynext_base; - ul_stack_seg_addr = ul_gpp_mem_base + off_set; - ul_stack_seg_val = readl(ul_stack_seg_addr); + stack_seg_pa = host_res->mem_phys[1] + off_set; + stack_seg = ioremap(stack_seg_pa, SZ_32); + if (!stack_seg) { + status = -ENOMEM; + goto func_end; + } + + ul_stack_seg_val = readl(stack_seg); + + iounmap(stack_seg); dev_dbg(bridge, "%s: StackSegVal = 0x%x, StackSegAddr =" " 0x%x\n", __func__, ul_stack_seg_val, - ul_stack_seg_addr); + host_res->mem_base[1] + off_set); pnode->create_args.asa.task_arg_obj.stack_seg = ul_stack_seg_val; -- cgit v0.10.2 From 4d3f120ae7473b96f114b187856e89e08571fc83 Mon Sep 17 00:00:00 2001 From: Omar Ramirez Luna Date: Wed, 24 Oct 2012 17:09:20 -0500 Subject: staging: tidspbridge: delete unused mmu functions This should get rid of warnings of the type: warning: passing argument 1 of '' discards qualifiers from pointer target type note: expected 'void *' but argument is of type 'const void *' Signed-off-by: Omar Ramirez Luna Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/tidspbridge/hw/hw_mmu.c b/drivers/staging/tidspbridge/hw/hw_mmu.c index a159450..50244a4 100644 --- a/drivers/staging/tidspbridge/hw/hw_mmu.c +++ b/drivers/staging/tidspbridge/hw/hw_mmu.c @@ -48,31 +48,6 @@ enum hw_mmu_page_size_t { }; /* - * FUNCTION : mmu_flush_entry - * - * INPUTS: - * - * Identifier : base_address - * Type : const u32 - * Description : Base Address of instance of MMU module - * - * RETURNS: - * - * Type : hw_status - * Description : 0 -- No errors occurred - * RET_BAD_NULL_PARAM -- A Pointer - * Parameter was set to NULL - * - * PURPOSE: : Flush the TLB entry pointed by the - * lock counter register - * even if this entry is set protected - * - * METHOD: : Check the Input parameter and Flush a - * single entry in the TLB. - */ -static hw_status mmu_flush_entry(const void __iomem *base_address); - -/* * FUNCTION : mmu_set_cam_entry * * INPUTS: @@ -285,44 +260,6 @@ hw_status hw_mmu_twl_disable(void __iomem *base_address) return status; } -hw_status hw_mmu_tlb_flush(const void __iomem *base_address, u32 virtual_addr, - u32 page_sz) -{ - hw_status status = 0; - u32 virtual_addr_tag; - enum hw_mmu_page_size_t pg_size_bits; - - switch (page_sz) { - case HW_PAGE_SIZE4KB: - pg_size_bits = HW_MMU_SMALL_PAGE; - break; - - case HW_PAGE_SIZE64KB: - pg_size_bits = HW_MMU_LARGE_PAGE; - break; - - case HW_PAGE_SIZE1MB: - pg_size_bits = HW_MMU_SECTION; - break; - - case HW_PAGE_SIZE16MB: - pg_size_bits = HW_MMU_SUPERSECTION; - break; - - default: - return -EINVAL; - } - - /* Generate the 20-bit tag from virtual address */ - virtual_addr_tag = ((virtual_addr & MMU_ADDR_MASK) >> 12); - - mmu_set_cam_entry(base_address, pg_size_bits, 0, 0, virtual_addr_tag); - - mmu_flush_entry(base_address); - - return status; -} - hw_status hw_mmu_tlb_add(void __iomem *base_address, u32 physical_addr, u32 virtual_addr, @@ -503,18 +440,6 @@ hw_status hw_mmu_pte_clear(const u32 pg_tbl_va, u32 virtual_addr, u32 page_size) return status; } -/* mmu_flush_entry */ -static hw_status mmu_flush_entry(const void __iomem *base_address) -{ - hw_status status = 0; - u32 flush_entry_data = 0x1; - - /* write values to register */ - MMUMMU_FLUSH_ENTRY_WRITE_REGISTER32(base_address, flush_entry_data); - - return status; -} - /* mmu_set_cam_entry */ static hw_status mmu_set_cam_entry(void __iomem *base_address, const u32 page_sz, diff --git a/drivers/staging/tidspbridge/hw/hw_mmu.h b/drivers/staging/tidspbridge/hw/hw_mmu.h index 1cdd082..1c50bb3 100644 --- a/drivers/staging/tidspbridge/hw/hw_mmu.h +++ b/drivers/staging/tidspbridge/hw/hw_mmu.h @@ -76,9 +76,6 @@ extern hw_status hw_mmu_twl_enable(void __iomem *base_address); extern hw_status hw_mmu_twl_disable(void __iomem *base_address); -extern hw_status hw_mmu_tlb_flush(const void __iomem *base_address, - u32 virtual_addr, u32 page_sz); - extern hw_status hw_mmu_tlb_add(void __iomem *base_address, u32 physical_addr, u32 virtual_addr, -- cgit v0.10.2 From a2fc66ce9f4669daeebc03d6891917b894c752a8 Mon Sep 17 00:00:00 2001 From: Veaceslav Falico Date: Tue, 23 Oct 2012 04:54:34 +0000 Subject: pch_gbe: fix error handling in pch_gbe_up() If we fail to allocate rx buffers pool by any reason, we'll just return with an error, however we've previously successfully requested an irq. Fix this by releasing the irq before returning the error. Signed-off-by: Veaceslav Falico Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c index a8854d0..4c4fe5b 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c @@ -1930,12 +1930,12 @@ int pch_gbe_up(struct pch_gbe_adapter *adapter) struct net_device *netdev = adapter->netdev; struct pch_gbe_tx_ring *tx_ring = adapter->tx_ring; struct pch_gbe_rx_ring *rx_ring = adapter->rx_ring; - int err; + int err = -EINVAL; /* Ensure we have a valid MAC */ if (!is_valid_ether_addr(adapter->hw.mac.addr)) { pr_err("Error: Invalid MAC address\n"); - return -EINVAL; + goto out; } /* hardware has been reset, we need to reload some things */ @@ -1948,13 +1948,13 @@ int pch_gbe_up(struct pch_gbe_adapter *adapter) err = pch_gbe_request_irq(adapter); if (err) { - pr_err("Error: can't bring device up\n"); - return err; + pr_err("Error: can't bring device up - irq request failed\n"); + goto out; } err = pch_gbe_alloc_rx_buffers_pool(adapter, rx_ring, rx_ring->count); if (err) { - pr_err("Error: can't bring device up\n"); - return err; + pr_err("Error: can't bring device up - alloc rx buffers pool failed\n"); + goto freeirq; } pch_gbe_alloc_tx_buffers(adapter, tx_ring); pch_gbe_alloc_rx_buffers(adapter, rx_ring, rx_ring->count); @@ -1969,6 +1969,11 @@ int pch_gbe_up(struct pch_gbe_adapter *adapter) netif_start_queue(adapter->netdev); return 0; + +freeirq: + pch_gbe_free_irq(adapter); +out: + return err; } /** -- cgit v0.10.2 From b2b3392cfc0f5af0f621b3d95aba459f2d5c0e28 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Tue, 23 Oct 2012 12:11:55 +0000 Subject: NET_VENDOR_TI: make available for am33xx as well The cpsw/davinci mdio ip cores are present on am33xx, so make NET_VENDOR_TI visible for it as well. Signed-off-by: Peter Korsgaard Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig index b26cbda..2c41894 100644 --- a/drivers/net/ethernet/ti/Kconfig +++ b/drivers/net/ethernet/ti/Kconfig @@ -5,7 +5,7 @@ config NET_VENDOR_TI bool "Texas Instruments (TI) devices" default y - depends on PCI || EISA || AR7 || (ARM && (ARCH_DAVINCI || ARCH_OMAP3)) + depends on PCI || EISA || AR7 || (ARM && (ARCH_DAVINCI || ARCH_OMAP3 || SOC_AM33XX)) ---help--- If you have a network (Ethernet) card belonging to this class, say Y and read the Ethernet-HOWTO, available from -- cgit v0.10.2 From 14edd87dc67311556f1254a8f29cf4dd6cb5b7d1 Mon Sep 17 00:00:00 2001 From: Li RongQing Date: Wed, 24 Oct 2012 14:01:18 +0800 Subject: ipv6: Set default hoplimit as zero. Commit a02e4b7dae4551(Demark default hoplimit as zero) only changes the hoplimit checking condition and default value in ip6_dst_hoplimit, not zeros all hoplimit default value. Keep the zeroing ip6_template_metrics[RTAX_HOPLIMIT - 1] to force it as const, cause as a37e6e344910(net: force dst_default_metrics to const section) Signed-off-by: Li RongQing Signed-off-by: David S. Miller diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 7c7e963..b1e6cf0 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -219,7 +219,7 @@ static struct dst_ops ip6_dst_blackhole_ops = { }; static const u32 ip6_template_metrics[RTAX_MAX] = { - [RTAX_HOPLIMIT - 1] = 255, + [RTAX_HOPLIMIT - 1] = 0, }; static const struct rt6_info ip6_null_entry_template = { @@ -1232,7 +1232,7 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev, rt->rt6i_dst.addr = fl6->daddr; rt->rt6i_dst.plen = 128; rt->rt6i_idev = idev; - dst_metric_set(&rt->dst, RTAX_HOPLIMIT, 255); + dst_metric_set(&rt->dst, RTAX_HOPLIMIT, 0); spin_lock_bh(&icmp6_dst_lock); rt->dst.next = icmp6_dst_gc_list; -- cgit v0.10.2 From 2b9c128e9580e79db48bd3aacb2b4873544e01e8 Mon Sep 17 00:00:00 2001 From: Wei Yang Date: Wed, 24 Oct 2012 05:21:36 +0000 Subject: gianfar_ptp: use iomem, not ioports resource tree in probe When using a 36 bit dtb file, the driver complains "resource busy". Investigating the source of the message leads one to the gianfar_ptp_probe function. Since the type of the device resource requested in this function is IORESOURCE_MEM, it should use "iomem_resource" instead of "ioports_resource". Signed-off-by: Wei Yang Cc: Claudiu Manoil Cc: Timur Tabi Signed-off-by: Paul Gortmaker Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/freescale/gianfar_ptp.c b/drivers/net/ethernet/freescale/gianfar_ptp.c index b9db0e0..2e5daee 100644 --- a/drivers/net/ethernet/freescale/gianfar_ptp.c +++ b/drivers/net/ethernet/freescale/gianfar_ptp.c @@ -478,7 +478,7 @@ static int gianfar_ptp_probe(struct platform_device *dev) pr_err("no resource\n"); goto no_resource; } - if (request_resource(&ioport_resource, etsects->rsrc)) { + if (request_resource(&iomem_resource, etsects->rsrc)) { pr_err("resource busy\n"); goto no_resource; } -- cgit v0.10.2 From 910a578f7e9400a78a3b13aba0b4d2df16a2cb05 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Wed, 24 Oct 2012 20:37:51 +0200 Subject: vhost: fix mergeable bufs on BE hosts We copy head count to a 16 bit field, this works by chance on LE but on BE guest gets 0. Fix it up. Signed-off-by: Michael S. Tsirkin Tested-by: Alexander Graf Cc: stable@vger.kernel.org Signed-off-by: David S. Miller diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 072cbba..7f93f34 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -379,7 +379,8 @@ static void handle_rx(struct vhost_net *net) .hdr.gso_type = VIRTIO_NET_HDR_GSO_NONE }; size_t total_len = 0; - int err, headcount, mergeable; + int err, mergeable; + s16 headcount; size_t vhost_hlen, sock_hlen; size_t vhost_len, sock_len; /* TODO: check that we are running from vhost_worker? */ -- cgit v0.10.2 From ae495e844a77344fdaedbb2ad97d925d096e9f0d Mon Sep 17 00:00:00 2001 From: Hui Wang Date: Thu, 25 Oct 2012 00:38:01 -0700 Subject: Input: egalax_ts - get gpio from devicetree The irq_to_gpio() is old, most platforms use GENERIC_GPIO framework and don't support this API anymore. The i.MX6q sabrelite platform equips an egalax touchscreen controller, and this platform already transfered to GENERIC_GPIO framework, to support this driver, we use a more generic way to get gpio. Add a return value checking for waking up the controller in the probe function, this guarantee only a workable device can pass init. [dmitry.torokhov@gmail.com: Make driver depend on CONFIG_OF as it is now required.] Acked-by Zhang Jiejing Reviewed-by: Shawn Guo Signed-off-by: Hui Wang Signed-off-by: Dmitry Torokhov diff --git a/Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt new file mode 100644 index 0000000..df70318 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt @@ -0,0 +1,19 @@ +* EETI eGalax Multiple Touch Controller + +Required properties: +- compatible: must be "eeti,egalax_ts" +- reg: i2c slave address +- interrupt-parent: the phandle for the interrupt controller +- interrupts: touch controller interrupt +- wakeup-gpios: the gpio pin to be used for waking up the controller + as well as uased as irq pin + +Example: + + egalax_ts@04 { + compatible = "eeti,egalax_ts"; + reg = <0x04>; + interrupt-parent = <&gpio1>; + interrupts = <9 2>; + wakeup-gpios = <&gpio1 9 0>; + }; diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 1ba232c..f7668b2 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -239,7 +239,7 @@ config TOUCHSCREEN_EETI config TOUCHSCREEN_EGALAX tristate "EETI eGalax multi-touch panel support" - depends on I2C + depends on I2C && OF help Say Y here to enable support for I2C connected EETI eGalax multi-touch panels. diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c index c1e3460..13fa62f 100644 --- a/drivers/input/touchscreen/egalax_ts.c +++ b/drivers/input/touchscreen/egalax_ts.c @@ -28,6 +28,7 @@ #include #include #include +#include /* * Mouse Mode: some panel may configure the controller to mouse mode, @@ -122,9 +123,17 @@ static irqreturn_t egalax_ts_interrupt(int irq, void *dev_id) /* wake up controller by an falling edge of interrupt gpio. */ static int egalax_wake_up_device(struct i2c_client *client) { - int gpio = irq_to_gpio(client->irq); + struct device_node *np = client->dev.of_node; + int gpio; int ret; + if (!np) + return -ENODEV; + + gpio = of_get_named_gpio(np, "wakeup-gpios", 0); + if (!gpio_is_valid(gpio)) + return -ENODEV; + ret = gpio_request(gpio, "egalax_irq"); if (ret < 0) { dev_err(&client->dev, @@ -181,7 +190,11 @@ static int __devinit egalax_ts_probe(struct i2c_client *client, ts->input_dev = input_dev; /* controller may be in sleep, wake it up. */ - egalax_wake_up_device(client); + error = egalax_wake_up_device(client); + if (error) { + dev_err(&client->dev, "Failed to wake up the controller\n"); + goto err_free_dev; + } ret = egalax_firmware_version(client); if (ret < 0) { @@ -274,11 +287,17 @@ static int egalax_ts_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(egalax_ts_pm_ops, egalax_ts_suspend, egalax_ts_resume); +static struct of_device_id egalax_ts_dt_ids[] = { + { .compatible = "eeti,egalax_ts" }, + { /* sentinel */ } +}; + static struct i2c_driver egalax_ts_driver = { .driver = { .name = "egalax_ts", .owner = THIS_MODULE, .pm = &egalax_ts_pm_ops, + .of_match_table = of_match_ptr(egalax_ts_dt_ids), }, .id_table = egalax_ts_id, .probe = egalax_ts_probe, -- cgit v0.10.2 From 88fd449e734a4264347e12b8ff74ccb33a9b9a35 Mon Sep 17 00:00:00 2001 From: Jason Gerecke Date: Wed, 24 Oct 2012 23:53:02 -0700 Subject: Input: wacom - add INPUT_PROP_DIRECT flag to Cintiq 24HD Signed-off-by: Jason Gerecke Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index c3468c8..c30d4c9 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -1449,6 +1449,9 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev, input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0); input_set_abs_params(input_dev, ABS_THROTTLE, 0, 71, 0, 0); + + __set_bit(INPUT_PROP_DIRECT, input_dev->propbit); + wacom_setup_cintiq(wacom_wac); break; -- cgit v0.10.2 From 1ae325574ce4c5fe5792b33cef95793e01af6c46 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 23 Oct 2012 15:55:05 +0100 Subject: ARM: ux500: Fix build error relating to IRQCHIP_SKIP_SET_WAKE MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch fixes the build error below: arch/arm/mach-ux500/cpu.c: In function ‘ux500_init_irq’: arch/arm/mach-ux500/cpu.c:55:2: error: invalid use of undefined type ‘struct irq_chip’ arch/arm/mach-ux500/cpu.c:55:24: error: ‘IRQCHIP_SKIP_SET_WAKE’ undeclared (first use in this function) arch/arm/mach-ux500/cpu.c:55:24: note: each undeclared identifier is reported only once for each function it appears in arch/arm/mach-ux500/cpu.c:55:48: error: ‘IRQCHIP_MASK_ON_SUSPEND’ undeclared (first use in this function) Acked-by: Linus Walleij Signed-off-by: Lee Jones diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c index 2236cbd..1f3fbc2 100644 --- a/arch/arm/mach-ux500/cpu.c +++ b/arch/arm/mach-ux500/cpu.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include -- cgit v0.10.2 From 35b33d230f7a621abf4d77b635d13061f08fd7a5 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Wed, 24 Oct 2012 11:07:02 +0100 Subject: ARM: ux500: Specify AMBA Primecell IDs for Nomadik I2C in DT Now the Nomadik I2C driver has been converted to an AMBA one, we are required to provide the Primecell IDs via platform code. When booting with DT enabled these have to be specified in the device nodes. We do that here. Acked-by: Linus Walleij Signed-off-by: Lee Jones diff --git a/arch/arm/boot/dts/dbx5x0.dtsi b/arch/arm/boot/dts/dbx5x0.dtsi index 748ba7a..28dccd6 100644 --- a/arch/arm/boot/dts/dbx5x0.dtsi +++ b/arch/arm/boot/dts/dbx5x0.dtsi @@ -483,6 +483,8 @@ compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell"; reg = <0x80004000 0x1000>; interrupts = <0 21 0x4>; + arm,primecell-periphid = <0x180024>; + #address-cells = <1>; #size-cells = <0>; v-i2c-supply = <&db8500_vape_reg>; @@ -494,6 +496,8 @@ compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell"; reg = <0x80122000 0x1000>; interrupts = <0 22 0x4>; + arm,primecell-periphid = <0x180024>; + #address-cells = <1>; #size-cells = <0>; v-i2c-supply = <&db8500_vape_reg>; @@ -505,6 +509,8 @@ compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell"; reg = <0x80128000 0x1000>; interrupts = <0 55 0x4>; + arm,primecell-periphid = <0x180024>; + #address-cells = <1>; #size-cells = <0>; v-i2c-supply = <&db8500_vape_reg>; @@ -516,6 +522,8 @@ compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell"; reg = <0x80110000 0x1000>; interrupts = <0 12 0x4>; + arm,primecell-periphid = <0x180024>; + #address-cells = <1>; #size-cells = <0>; v-i2c-supply = <&db8500_vape_reg>; @@ -527,6 +535,8 @@ compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell"; reg = <0x8012a000 0x1000>; interrupts = <0 51 0x4>; + arm,primecell-periphid = <0x180024>; + #address-cells = <1>; #size-cells = <0>; v-i2c-supply = <&db8500_vape_reg>; -- cgit v0.10.2 From 76ff4e434734f7772d1a592cc9fe1d9921a3ec40 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Wed, 24 Oct 2012 11:10:05 +0100 Subject: ARM: ux500: Correct SDI5 address and add some format changes Here we fix a simple copy and paste error and bring some node spaces back into line with the remainder of the tree. Acked-by: Linus Walleij Signed-off-by: Lee Jones diff --git a/arch/arm/boot/dts/dbx5x0.dtsi b/arch/arm/boot/dts/dbx5x0.dtsi index 28dccd6..4b0e0ca 100644 --- a/arch/arm/boot/dts/dbx5x0.dtsi +++ b/arch/arm/boot/dts/dbx5x0.dtsi @@ -583,33 +583,38 @@ interrupts = <0 60 0x4>; status = "disabled"; }; + sdi@80118000 { compatible = "arm,pl18x", "arm,primecell"; reg = <0x80118000 0x1000>; interrupts = <0 50 0x4>; status = "disabled"; }; + sdi@80005000 { compatible = "arm,pl18x", "arm,primecell"; reg = <0x80005000 0x1000>; interrupts = <0 41 0x4>; status = "disabled"; }; + sdi@80119000 { compatible = "arm,pl18x", "arm,primecell"; reg = <0x80119000 0x1000>; interrupts = <0 59 0x4>; status = "disabled"; }; + sdi@80114000 { compatible = "arm,pl18x", "arm,primecell"; reg = <0x80114000 0x1000>; interrupts = <0 99 0x4>; status = "disabled"; }; + sdi@80008000 { compatible = "arm,pl18x", "arm,primecell"; - reg = <0x80114000 0x1000>; + reg = <0x80008000 0x1000>; interrupts = <0 100 0x4>; status = "disabled"; }; -- cgit v0.10.2 From 479696840239e0cc43efb3c917bdcad2174d2215 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Mon, 15 Oct 2012 21:48:48 -0300 Subject: i82975x_edac: Fix dimm label initialization The driver has only 4 hardcoded labels, but allows much more memory. Fix it by removing the hardcoded logic, using snprintf() instead. [ 19.833972] general protection fault: 0000 [#1] SMP [ 19.837733] Modules linked in: i82975x_edac(+) edac_core firewire_ohci firewire_core crc_itu_t nouveau mxm_wmi wmi video i2c_algo_bit drm_kms_helper ttm drm i2c_core [ 19.837733] CPU 0 [ 19.837733] Pid: 390, comm: udevd Not tainted 3.6.1-1.fc17.x86_64.debug #1 Dell Inc. Precision WorkStation 390 /0MY510 [ 19.837733] RIP: 0010:[] [] strncpy+0x18/0x30 [ 19.837733] RSP: 0018:ffff880078535b68 EFLAGS: 00010202 [ 19.837733] RAX: ffff880069fa9708 RBX: ffff880078588000 RCX: ffff880069fa9708 [ 19.837733] RDX: 000000000000001f RSI: 5f706f5f63616465 RDI: ffff880069fa9708 [ 19.837733] RBP: ffff880078535b68 R08: ffff880069fa9727 R09: 000000000000fffe [ 19.837733] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000003 [ 19.837733] R13: 0000000000000000 R14: ffff880069fa9290 R15: ffff880079624a80 [ 19.837733] FS: 00007f3de01ee840(0000) GS:ffff88007c400000(0000) knlGS:0000000000000000 [ 19.837733] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.837733] CR2: 00007f3de00b9000 CR3: 0000000078dbc000 CR4: 00000000000007f0 [ 19.837733] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.837733] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 19.837733] Process udevd (pid: 390, threadinfo ffff880078534000, task ffff880079642450) [ 19.837733] Stack: [ 19.837733] ffff880078535c18 ffffffffa017c6b8 00040000816d627f ffff880079624a88 [ 19.837733] ffffc90004cd6000 ffff880079624520 ffff88007ac21148 0000000000000000 [ 19.837733] 0000000000000000 0004000000000000 feda000078535bc8 ffffffff810d696d [ 19.837733] Call Trace: [ 19.837733] [] i82975x_init_one+0x2e6/0x3e6 [i82975x_edac] ... Fix bug reported at: https://bugzilla.redhat.com/show_bug.cgi?id=848149 And, very likely: https://bbs.archlinux.org/viewtopic.php?id=148033 https://bugzilla.kernel.org/show_bug.cgi?id=47171 Cc: Alan Cox Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/edac/i82975x_edac.c b/drivers/edac/i82975x_edac.c index 069e26c..a980204 100644 --- a/drivers/edac/i82975x_edac.c +++ b/drivers/edac/i82975x_edac.c @@ -370,10 +370,6 @@ static enum dev_type i82975x_dram_type(void __iomem *mch_window, int rank) static void i82975x_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev, void __iomem *mch_window) { - static const char *labels[4] = { - "DIMM A1", "DIMM A2", - "DIMM B1", "DIMM B2" - }; struct csrow_info *csrow; unsigned long last_cumul_size; u8 value; @@ -423,9 +419,10 @@ static void i82975x_init_csrows(struct mem_ctl_info *mci, dimm = mci->csrows[index]->channels[chan]->dimm; dimm->nr_pages = nr_pages / csrow->nr_channels; - strncpy(csrow->channels[chan]->dimm->label, - labels[(index >> 1) + (chan * 2)], - EDAC_MC_LABEL_LEN); + + snprintf(csrow->channels[chan]->dimm->label, EDAC_MC_LABEL_LEN, "DIMM %c%d", + (chan == 0) ? 'A' : 'B', + index); dimm->grain = 1 << 7; /* 128Byte cache-line resolution */ dimm->dtype = i82975x_dram_type(mch_window, index); dimm->mtype = MEM_DDR2; /* I82975x supports only DDR2 */ -- cgit v0.10.2 From 24bef66e74d647aebd34e0bef7693512b7912029 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Wed, 24 Oct 2012 10:30:01 -0200 Subject: edac: Fix the dimm filling for csrows-based layouts The driver is currently filling data in a wrong way, on drivers for csrows-based memory controller, when the first layer is a csrow. This is not easily to notice, as, in general, memories are filed in dual, interleaved, symetric mode, as very few memory controllers support asymetric modes. While digging into a bug for i82795_edac driver, the asymetric mode there is now working, allowing us to fill the machine with 4x1GB ranks at channel 0, and 2x512GB at channel 1: Channel 0 ranks: EDAC DEBUG: i82975x_init_csrows: DIMM A0: from page 0x00000000 to 0x0003ffff (size: 0x00040000 pages) EDAC DEBUG: i82975x_init_csrows: DIMM A1: from page 0x00040000 to 0x0007ffff (size: 0x00040000 pages) EDAC DEBUG: i82975x_init_csrows: DIMM A2: from page 0x00080000 to 0x000bffff (size: 0x00040000 pages) EDAC DEBUG: i82975x_init_csrows: DIMM A3: from page 0x000c0000 to 0x000fffff (size: 0x00040000 pages) Channel 1 ranks: EDAC DEBUG: i82975x_init_csrows: DIMM B0: from page 0x00100000 to 0x0011ffff (size: 0x00020000 pages) EDAC DEBUG: i82975x_init_csrows: DIMM B1: from page 0x00120000 to 0x0013ffff (size: 0x00020000 pages) Instead of properly showing the memories as such, before this patch, it shows the memory layout as: +-----------------------------------+ | mc0 | | csrow0 | csrow1 | csrow2 | ----------+-----------------------------------+ channel1: | 1024 MB | 1024 MB | 512 MB | channel0: | 1024 MB | 1024 MB | 512 MB | ----------+-----------------------------------+ as if both channels were symetric, grouping the DIMMs on a wrong layout. After this patch, the memory is correctly represented. So, for csrows at layers[0], it shows: +-----------------------------------------------+ | mc0 | | csrow0 | csrow1 | csrow2 | csrow3 | ----------+-----------------------------------------------+ channel1: | 512 MB | 512 MB | 0 MB | 0 MB | channel0: | 1024 MB | 1024 MB | 1024 MB | 1024 MB | ----------+-----------------------------------------------+ For csrows at layers[1], it shows: +-----------------------+ | mc0 | | channel0 | channel1 | --------+-----------------------+ csrow3: | 1024 MB | 0 MB | csrow2: | 1024 MB | 0 MB | --------+-----------------------+ csrow1: | 1024 MB | 512 MB | csrow0: | 1024 MB | 512 MB | --------+-----------------------+ So, no matter of what comes first, the information between channel and csrow will be properly represented. Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index d5dc9da..81eb9fd 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -416,10 +416,18 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num, dimm->cschannel = chn; /* Increment csrow location */ - row++; - if (row == tot_csrows) { - row = 0; + if (layers[0].is_virt_csrow) { chn++; + if (chn == tot_channels) { + chn = 0; + row++; + } + } else { + row++; + if (row == tot_csrows) { + row = 0; + chn++; + } } /* Increment dimm location */ -- cgit v0.10.2 From 7e06b7a3333f5c7a0cec12aff20d39c5c87c0795 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Thu, 18 Oct 2012 15:54:45 +0200 Subject: i7300_edac: Fix error flag testing * Right-shift the values in GET_FBD_FAT_IDX and GET_FBD_NF_IDX, so that the callers get the result they expect. * Fix definition of FERR_FAT_FBD_ERR_MASK. * Call GET_FBD_NF_IDX, not GET_FBD_FAT_IDX, when operating on register FERR_NF_FBD. We were lucky they have the same definition. This fixes kernel bug #44131: https://bugzilla.kernel.org/show_bug.cgi?id=44131 Signed-off-by: Jean Delvare Cc: Mauro Carvalho Chehab Cc: Doug Thompson Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/edac/i7300_edac.c b/drivers/edac/i7300_edac.c index a09d066..9d669cd 100644 --- a/drivers/edac/i7300_edac.c +++ b/drivers/edac/i7300_edac.c @@ -197,8 +197,8 @@ static const char *ferr_fat_fbd_name[] = { [0] = "Memory Write error on non-redundant retry or " "FBD configuration Write error on retry", }; -#define GET_FBD_FAT_IDX(fbderr) (fbderr & (3 << 28)) -#define FERR_FAT_FBD_ERR_MASK ((1 << 0) | (1 << 1) | (1 << 2) | (1 << 3)) +#define GET_FBD_FAT_IDX(fbderr) (((fbderr) >> 28) & 3) +#define FERR_FAT_FBD_ERR_MASK ((1 << 0) | (1 << 1) | (1 << 2) | (1 << 22)) #define FERR_NF_FBD 0xa0 static const char *ferr_nf_fbd_name[] = { @@ -225,7 +225,7 @@ static const char *ferr_nf_fbd_name[] = { [1] = "Aliased Uncorrectable Non-Mirrored Demand Data ECC", [0] = "Uncorrectable Data ECC on Replay", }; -#define GET_FBD_NF_IDX(fbderr) (fbderr & (3 << 28)) +#define GET_FBD_NF_IDX(fbderr) (((fbderr) >> 28) & 3) #define FERR_NF_FBD_ERR_MASK ((1 << 24) | (1 << 23) | (1 << 22) | (1 << 21) |\ (1 << 18) | (1 << 17) | (1 << 16) | (1 << 15) |\ (1 << 14) | (1 << 13) | (1 << 11) | (1 << 10) |\ @@ -464,7 +464,7 @@ static void i7300_process_fbd_error(struct mem_ctl_info *mci) errnum = find_first_bit(&errors, ARRAY_SIZE(ferr_nf_fbd_name)); specific = GET_ERR_FROM_TABLE(ferr_nf_fbd_name, errnum); - branch = (GET_FBD_FAT_IDX(error_reg) == 2) ? 1 : 0; + branch = (GET_FBD_NF_IDX(error_reg) == 2) ? 1 : 0; pci_read_config_dword(pvt->pci_dev_16_1_fsb_addr_map, REDMEMA, &syndrome); -- cgit v0.10.2 From 555cb715be8ef98b8ec362b23dfc254d432a35b1 Mon Sep 17 00:00:00 2001 From: Javier Cardona Date: Wed, 24 Oct 2012 12:43:30 -0700 Subject: mac80211: Only process mesh config header on frames that RA_MATCH Doing otherwise is wrong, and may wreak havoc on the mpp tables, specially if the frame is encrypted. Cc: stable@vger.kernel.org Reported-by: Chaoxing Lin Signed-off-by: Javier Cardona Signed-off-by: Johannes Berg diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 61c621e..1222127 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1897,7 +1897,8 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) mesh_rmc_check(hdr->addr3, mesh_hdr, rx->sdata)) return RX_DROP_MONITOR; - if (!ieee80211_is_data(hdr->frame_control)) + if (!ieee80211_is_data(hdr->frame_control) || + !(status->rx_flags & IEEE80211_RX_RA_MATCH)) return RX_CONTINUE; if (!mesh_hdr->ttl) @@ -1941,9 +1942,6 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) } skb_set_queue_mapping(skb, q); - if (!(status->rx_flags & IEEE80211_RX_RA_MATCH)) - goto out; - if (!--mesh_hdr->ttl) { IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_ttl); return RX_DROP_MONITOR; -- cgit v0.10.2 From 2ac64cd17f9af6d6adaa921bd9846a3c9bb9235c Mon Sep 17 00:00:00 2001 From: Javier Cardona Date: Wed, 24 Oct 2012 12:43:31 -0700 Subject: mac80211: Don't drop frames received with mesh ttl == 1 Prior this fix, those frames were not received, nor forwarded. Fix this to receive and not forward. Signed-off-by: Javier Cardona Signed-off-by: Johannes Berg diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 1222127..f73e0dd 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1944,7 +1944,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) if (!--mesh_hdr->ttl) { IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_ttl); - return RX_DROP_MONITOR; + goto out; } if (!ifmsh->mshcfg.dot11MeshForwarding) -- cgit v0.10.2 From bad9955db1b73d7286f74a8136a0628a9b1ac017 Mon Sep 17 00:00:00 2001 From: Benjamin Poirier Date: Sun, 21 Oct 2012 05:27:53 -0400 Subject: menuconfig: Replace CIRCLEQ by list_head-style lists. sys/queue.h and CIRCLEQ in particular have proven to cause portability problems (reported on Debian Sarge, Cygwin and FreeBSD) Reported-by: Tetsuo Handa Tested-by: Tetsuo Handa Tested-by: Yaakov Selkowitz Signed-off-by: Benjamin Poirier Signed-off-by: "Yann E. MORIN" Signed-off-by: Michal Marek diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h index bd2e098..cdd4860 100644 --- a/scripts/kconfig/expr.h +++ b/scripts/kconfig/expr.h @@ -12,7 +12,7 @@ extern "C" { #include #include -#include +#include "list.h" #ifndef __cplusplus #include #endif @@ -175,12 +175,11 @@ struct menu { #define MENU_ROOT 0x0002 struct jump_key { - CIRCLEQ_ENTRY(jump_key) entries; + struct list_head entries; size_t offset; struct menu *target; int index; }; -CIRCLEQ_HEAD(jk_head, jump_key); #define JUMP_NB 9 diff --git a/scripts/kconfig/list.h b/scripts/kconfig/list.h new file mode 100644 index 0000000..0ae730b --- /dev/null +++ b/scripts/kconfig/list.h @@ -0,0 +1,91 @@ +#ifndef LIST_H +#define LIST_H + +/* + * Copied from include/linux/... + */ + +#undef offsetof +#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) + +/** + * container_of - cast a member of a structure out to the containing structure + * @ptr: the pointer to the member. + * @type: the type of the container struct this is embedded in. + * @member: the name of the member within the struct. + * + */ +#define container_of(ptr, type, member) ({ \ + const typeof( ((type *)0)->member ) *__mptr = (ptr); \ + (type *)( (char *)__mptr - offsetof(type,member) );}) + + +struct list_head { + struct list_head *next, *prev; +}; + + +#define LIST_HEAD_INIT(name) { &(name), &(name) } + +#define LIST_HEAD(name) \ + struct list_head name = LIST_HEAD_INIT(name) + +/** + * list_entry - get the struct for this entry + * @ptr: the &struct list_head pointer. + * @type: the type of the struct this is embedded in. + * @member: the name of the list_struct within the struct. + */ +#define list_entry(ptr, type, member) \ + container_of(ptr, type, member) + +/** + * list_for_each_entry - iterate over list of given type + * @pos: the type * to use as a loop cursor. + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + */ +#define list_for_each_entry(pos, head, member) \ + for (pos = list_entry((head)->next, typeof(*pos), member); \ + &pos->member != (head); \ + pos = list_entry(pos->member.next, typeof(*pos), member)) + +/** + * list_empty - tests whether a list is empty + * @head: the list to test. + */ +static inline int list_empty(const struct list_head *head) +{ + return head->next == head; +} + +/* + * Insert a new entry between two known consecutive entries. + * + * This is only for internal list manipulation where we know + * the prev/next entries already! + */ +static inline void __list_add(struct list_head *_new, + struct list_head *prev, + struct list_head *next) +{ + next->prev = _new; + _new->next = next; + _new->prev = prev; + prev->next = _new; +} + +/** + * list_add_tail - add a new entry + * @new: new entry to be added + * @head: list head to add it before + * + * Insert a new entry before the specified head. + * This is useful for implementing queues. + */ +static inline void list_add_tail(struct list_head *_new, struct list_head *head) +{ + __list_add(_new, head->prev, head); +} + +#endif diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h index 1d1c085..ef1a738 100644 --- a/scripts/kconfig/lkc_proto.h +++ b/scripts/kconfig/lkc_proto.h @@ -21,9 +21,9 @@ P(menu_get_root_menu,struct menu *,(struct menu *menu)); P(menu_get_parent_menu,struct menu *,(struct menu *menu)); P(menu_has_help,bool,(struct menu *menu)); P(menu_get_help,const char *,(struct menu *menu)); -P(get_symbol_str, void, (struct gstr *r, struct symbol *sym, struct jk_head +P(get_symbol_str, void, (struct gstr *r, struct symbol *sym, struct list_head *head)); -P(get_relations_str, struct gstr, (struct symbol **sym_arr, struct jk_head +P(get_relations_str, struct gstr, (struct symbol **sym_arr, struct list_head *head)); P(menu_get_ext_help,void,(struct menu *menu, struct gstr *help)); diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c index 48f6744..53975cf 100644 --- a/scripts/kconfig/mconf.c +++ b/scripts/kconfig/mconf.c @@ -312,7 +312,7 @@ static void set_config_filename(const char *config_filename) struct search_data { - struct jk_head *head; + struct list_head *head; struct menu **targets; int *keys; }; @@ -323,7 +323,7 @@ static void update_text(char *buf, size_t start, size_t end, void *_data) struct jump_key *pos; int k = 0; - CIRCLEQ_FOREACH(pos, data->head, entries) { + list_for_each_entry(pos, data->head, entries) { if (pos->offset >= start && pos->offset < end) { char header[4]; @@ -375,7 +375,7 @@ again: sym_arr = sym_re_search(dialog_input); do { - struct jk_head head = CIRCLEQ_HEAD_INITIALIZER(head); + LIST_HEAD(head); struct menu *targets[JUMP_NB]; int keys[JUMP_NB + 1], i; struct search_data data = { diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c index a3cade6..e98a05c 100644 --- a/scripts/kconfig/menu.c +++ b/scripts/kconfig/menu.c @@ -508,7 +508,7 @@ const char *menu_get_help(struct menu *menu) } static void get_prompt_str(struct gstr *r, struct property *prop, - struct jk_head *head) + struct list_head *head) { int i, j; struct menu *submenu[8], *menu, *location = NULL; @@ -544,12 +544,13 @@ static void get_prompt_str(struct gstr *r, struct property *prop, } else jump->target = location; - if (CIRCLEQ_EMPTY(head)) + if (list_empty(head)) jump->index = 0; else - jump->index = CIRCLEQ_LAST(head)->index + 1; + jump->index = list_entry(head->prev, struct jump_key, + entries)->index + 1; - CIRCLEQ_INSERT_TAIL(head, jump, entries); + list_add_tail(&jump->entries, head); } if (i > 0) { @@ -573,7 +574,8 @@ static void get_prompt_str(struct gstr *r, struct property *prop, /* * head is optional and may be NULL */ -void get_symbol_str(struct gstr *r, struct symbol *sym, struct jk_head *head) +void get_symbol_str(struct gstr *r, struct symbol *sym, + struct list_head *head) { bool hit; struct property *prop; @@ -612,7 +614,7 @@ void get_symbol_str(struct gstr *r, struct symbol *sym, struct jk_head *head) str_append(r, "\n\n"); } -struct gstr get_relations_str(struct symbol **sym_arr, struct jk_head *head) +struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head) { struct symbol *sym; struct gstr res = str_new(); -- cgit v0.10.2 From b6442559952ccd931415923b4a5866f5c0e7e781 Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Wed, 10 Oct 2012 18:27:09 +0800 Subject: ARM: dts: mxs: add the "clock-names" for gpmi-nand The current DT nodes for mx23/mx28 miss the `clocks-names` item for gpmi-nand. So the gpmi-nand driver could not find the proper clock. This patch fixes this issue. Signed-off-by: Huang Shijie Reviewed-by: Marek Vasut Acked-by: Shawn Guo Signed-off-by: Arnd Bergmann diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi index 9ca4ca7..6d31aa3 100644 --- a/arch/arm/boot/dts/imx23.dtsi +++ b/arch/arm/boot/dts/imx23.dtsi @@ -69,6 +69,7 @@ interrupts = <13>, <56>; interrupt-names = "gpmi-dma", "bch"; clocks = <&clks 34>; + clock-names = "gpmi_io"; fsl,gpmi-dma-channel = <4>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi index e16d631..55c57ea 100644 --- a/arch/arm/boot/dts/imx28.dtsi +++ b/arch/arm/boot/dts/imx28.dtsi @@ -85,6 +85,7 @@ interrupts = <88>, <41>; interrupt-names = "gpmi-dma", "bch"; clocks = <&clks 50>; + clock-names = "gpmi_io"; fsl,gpmi-dma-channel = <4>; status = "disabled"; }; -- cgit v0.10.2 From d323c243d9e6d9bab8b69ee44bfc2ebba11b9786 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Wed, 24 Oct 2012 11:00:29 -0700 Subject: MAINTAINERS: Add arm-soc tree entry Document the arm-soc tree in the maintainers file so that developers know how arm SoC development is structured. Signed-off-by: Stephen Boyd Signed-off-by: Arnd Bergmann diff --git a/MAINTAINERS b/MAINTAINERS index 027ec2b..56eac7d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -637,6 +637,13 @@ W: http://www.arm.linux.org.uk/ S: Maintained F: arch/arm/ +ARM SUB-ARCHITECTURES +L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) +S: MAINTAINED +F: arch/arm/mach-*/ +F: arch/arm/plat-*/ +T: git git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git + ARM PRIMECELL AACI PL041 DRIVER M: Russell King S: Maintained -- cgit v0.10.2 From ea29c4ea2b04462e92f409cd852dfe0d6d04f0fc Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Mon, 15 Oct 2012 12:48:11 +0300 Subject: OMAPDSS: DSI: fix dsi_get_dsidev_from_id() If dsi_get_dsidev_from_id() is called with a DSI module id that does not exist on the board, the function will crash as omap_dss_get_output() will return NULL. This happens on omap3 boards when dumping DSI clocks, as the dumping code will try to get the dsidev for DSI modules 0 and 1, but omap3 only has DSI module 0. Also clean up the id -> output mapping, so that if the function is called with invalid module ID it will return NULL. Signed-off-by: Tomi Valkeinen Cc: Archit Taneja diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index d64ac38..bee9284 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -365,11 +365,20 @@ struct platform_device *dsi_get_dsidev_from_id(int module) struct omap_dss_output *out; enum omap_dss_output_id id; - id = module == 0 ? OMAP_DSS_OUTPUT_DSI1 : OMAP_DSS_OUTPUT_DSI2; + switch (module) { + case 0: + id = OMAP_DSS_OUTPUT_DSI1; + break; + case 1: + id = OMAP_DSS_OUTPUT_DSI2; + break; + default: + return NULL; + } out = omap_dss_get_output(id); - return out->pdev; + return out ? out->pdev : NULL; } static inline void dsi_write_reg(struct platform_device *dsidev, -- cgit v0.10.2 From 5e3059b2cb6fb412415da08b213549a6aed65d36 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 25 Oct 2012 16:34:18 +0200 Subject: ARM: SPEAr: Remove unused empty files Few empty files (spear1310_misc_regs.h and spear1340_misc_regs.h) are created by commit b31e23726 "SPEAr13xx: Add header files". Don't know how they got added, obviously my fault :) But nobody could even catch them in reviews. Remove them. Signed-off-by: Viresh Kumar Signed-off-by: Arnd Bergmann diff --git a/arch/arm/mach-spear13xx/include/mach/spear1310_misc_regs.h b/arch/arm/mach-spear13xx/include/mach/spear1310_misc_regs.h deleted file mode 100644 index e69de29..0000000 diff --git a/arch/arm/mach-spear13xx/include/mach/spear1340_misc_regs.h b/arch/arm/mach-spear13xx/include/mach/spear1340_misc_regs.h deleted file mode 100644 index e69de29..0000000 -- cgit v0.10.2 From ef3f94412a4d7e107392e7c7cfc3e2d0668aa1aa Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Wed, 17 Oct 2012 20:16:48 +0200 Subject: ARM: socfpga: Fix socfpga compilation with early_printk() enabled This fixes early_printk() compilation for socfpga. (senduart/busyuart/waituart were missing). It does that by making Picochip code generic. Signed-off-by: Pavel Machek Acked-by: Dinh Nguyen Acked-by: Jamie Iles Signed-off-by: Arnd Bergmann diff --git a/arch/arm/include/debug/8250_32.S b/arch/arm/include/debug/8250_32.S new file mode 100644 index 0000000..8db01ee --- /dev/null +++ b/arch/arm/include/debug/8250_32.S @@ -0,0 +1,27 @@ +/* + * Copyright (c) 2011 Picochip Ltd., Jamie Iles + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit + * accesses to the 8250. + */ + +#include + + .macro senduart,rd,rx + str \rd, [\rx, #UART_TX << UART_SHIFT] + .endm + + .macro busyuart,rd,rx +1002: ldr \rd, [\rx, #UART_LSR << UART_SHIFT] + and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE + teq \rd, #UART_LSR_TEMT | UART_LSR_THRE + bne 1002b + .endm + + /* The UART's don't have any flow control IO's wired up. */ + .macro waituart,rd,rx + .endm diff --git a/arch/arm/include/debug/picoxcell.S b/arch/arm/include/debug/picoxcell.S index 7419deb..bc1f07c 100644 --- a/arch/arm/include/debug/picoxcell.S +++ b/arch/arm/include/debug/picoxcell.S @@ -5,10 +5,7 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * - * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit - * accesses to the 8250. */ -#include #define UART_SHIFT 2 #define PICOXCELL_UART1_BASE 0x80230000 @@ -19,17 +16,4 @@ ldr \rp, =PICOXCELL_UART1_BASE .endm - .macro senduart,rd,rx - str \rd, [\rx, #UART_TX << UART_SHIFT] - .endm - - .macro busyuart,rd,rx -1002: ldr \rd, [\rx, #UART_LSR << UART_SHIFT] - and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE - teq \rd, #UART_LSR_TEMT | UART_LSR_THRE - bne 1002b - .endm - - /* The UART's don't have any flow control IO's wired up. */ - .macro waituart,rd,rx - .endm +#include "8250_32.S" diff --git a/arch/arm/include/debug/socfpga.S b/arch/arm/include/debug/socfpga.S index d6f26d2..966b2f9 100644 --- a/arch/arm/include/debug/socfpga.S +++ b/arch/arm/include/debug/socfpga.S @@ -7,6 +7,9 @@ * published by the Free Software Foundation. */ +#define UART_SHIFT 2 +#define DEBUG_LL_UART_OFFSET 0x00002000 + .macro addruart, rp, rv, tmp mov \rp, #DEBUG_LL_UART_OFFSET orr \rp, \rp, #0x00c00000 @@ -14,3 +17,5 @@ orr \rp, \rp, #0xff000000 @ physical base .endm +#include "8250_32.S" + -- cgit v0.10.2 From 50dde8686eec41bf3d7cbec7a6f76c073ab01903 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:28:59 +0200 Subject: USB: metro-usb: fix port-data memory leak Fix port-data memory leak by moving port data allocation and deallocation to port_probe and port_remove. Since commit 0998d0631001288 (device-core: Ensure drvdata = NULL when no driver is bound) the port private data is no longer freed at release as it is no longer accessible. Note that the call to metrousb_clean (close) in shutdown was redundant. Compile-only tested. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c index 0b257dd..25cb97c 100644 --- a/drivers/usb/serial/metro-usb.c +++ b/drivers/usb/serial/metro-usb.c @@ -271,51 +271,27 @@ static int metrousb_set_modem_ctrl(struct usb_serial *serial, unsigned int contr return retval; } -static void metrousb_shutdown(struct usb_serial *serial) +static int metrousb_port_probe(struct usb_serial_port *port) { - int i = 0; + struct metrousb_private *metro_priv; - dev_dbg(&serial->dev->dev, "%s\n", __func__); + metro_priv = kzalloc(sizeof(*metro_priv), GFP_KERNEL); + if (!metro_priv) + return -ENOMEM; - /* Stop reading and writing on all ports. */ - for (i = 0; i < serial->num_ports; ++i) { - /* Close any open urbs. */ - metrousb_cleanup(serial->port[i]); + spin_lock_init(&metro_priv->lock); - /* Free memory. */ - kfree(usb_get_serial_port_data(serial->port[i])); - usb_set_serial_port_data(serial->port[i], NULL); + usb_set_serial_port_data(port, metro_priv); - dev_dbg(&serial->dev->dev, "%s - freed port number=%d\n", - __func__, serial->port[i]->number); - } + return 0; } -static int metrousb_startup(struct usb_serial *serial) +static int metrousb_port_remove(struct usb_serial_port *port) { struct metrousb_private *metro_priv; - struct usb_serial_port *port; - int i = 0; - - dev_dbg(&serial->dev->dev, "%s\n", __func__); - /* Loop through the serial ports setting up the private structures. - * Currently we only use one port. */ - for (i = 0; i < serial->num_ports; ++i) { - port = serial->port[i]; - - /* Declare memory. */ - metro_priv = kzalloc(sizeof(struct metrousb_private), GFP_KERNEL); - if (!metro_priv) - return -ENOMEM; - - /* Initialize memory. */ - spin_lock_init(&metro_priv->lock); - usb_set_serial_port_data(port, metro_priv); - - dev_dbg(&serial->dev->dev, "%s - port number=%d\n ", - __func__, port->number); - } + metro_priv = usb_get_serial_port_data(port); + kfree(metro_priv); return 0; } @@ -414,8 +390,8 @@ static struct usb_serial_driver metrousb_device = { .close = metrousb_cleanup, .read_int_callback = metrousb_read_int_callback, .write_int_callback = metrousb_write_int_callback, - .attach = metrousb_startup, - .release = metrousb_shutdown, + .port_probe = metrousb_port_probe, + .port_remove = metrousb_port_remove, .throttle = metrousb_throttle, .unthrottle = metrousb_unthrottle, .tiocmget = metrousb_tiocmget, -- cgit v0.10.2 From 2ee44fbeac92c36e53779a57ee84cfee1affe418 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:00 +0200 Subject: USB: metro-usb: fix io after disconnect Make sure no control urb is submitted during close after a disconnect by checking the disconnected flag. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c index 25cb97c..6f29c74 100644 --- a/drivers/usb/serial/metro-usb.c +++ b/drivers/usb/serial/metro-usb.c @@ -179,16 +179,13 @@ static void metrousb_cleanup(struct usb_serial_port *port) { dev_dbg(&port->dev, "%s\n", __func__); - if (port->serial->dev) { - /* Shutdown any interrupt in urbs. */ - if (port->interrupt_in_urb) { - usb_unlink_urb(port->interrupt_in_urb); - usb_kill_urb(port->interrupt_in_urb); - } - - /* Send deactivate cmd to device */ + usb_unlink_urb(port->interrupt_in_urb); + usb_kill_urb(port->interrupt_in_urb); + + mutex_lock(&port->serial->disc_mutex); + if (!port->serial->disconnected) metrousb_send_unidirectional_cmd(UNI_CMD_CLOSE, port); - } + mutex_unlock(&port->serial->disc_mutex); } static int metrousb_open(struct tty_struct *tty, struct usb_serial_port *port) -- cgit v0.10.2 From c129197c99550d356cf5f69b046994dd53cd1b9d Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:01 +0200 Subject: USB: whiteheat: fix memory leak in error path Make sure command buffer is deallocated in case of errors during attach. Cc: Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 346c7ef..cfd155e 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -333,6 +333,7 @@ no_firmware: "%s: please contact support@connecttech.com\n", serial->type->description); kfree(result); + kfree(command); return -ENODEV; no_command_private: -- cgit v0.10.2 From c467206ed6bcce26c83d0435612cc4fee2527305 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:02 +0200 Subject: USB: whiteheat: fix port-data memory leak Fix port-data memory leak by moving port data allocation and deallocation to port_probe and port_remove. Since commit 0998d0631001288 (device-core: Ensure drvdata = NULL when no driver is bound) the port private data is no longer freed at release as it is no longer accessible. Note that the fifth port (command port) is never registered as a port device and thus should be handled in attach and release. Compile-only tested. Cc: Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index cfd155e..b9fca35 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -83,6 +83,8 @@ static int whiteheat_firmware_attach(struct usb_serial *serial); /* function prototypes for the Connect Tech WhiteHEAT serial converter */ static int whiteheat_attach(struct usb_serial *serial); static void whiteheat_release(struct usb_serial *serial); +static int whiteheat_port_probe(struct usb_serial_port *port); +static int whiteheat_port_remove(struct usb_serial_port *port); static int whiteheat_open(struct tty_struct *tty, struct usb_serial_port *port); static void whiteheat_close(struct usb_serial_port *port); @@ -117,6 +119,8 @@ static struct usb_serial_driver whiteheat_device = { .num_ports = 4, .attach = whiteheat_attach, .release = whiteheat_release, + .port_probe = whiteheat_port_probe, + .port_remove = whiteheat_port_remove, .open = whiteheat_open, .close = whiteheat_close, .ioctl = whiteheat_ioctl, @@ -218,15 +222,12 @@ static int whiteheat_attach(struct usb_serial *serial) { struct usb_serial_port *command_port; struct whiteheat_command_private *command_info; - struct usb_serial_port *port; - struct whiteheat_private *info; struct whiteheat_hw_info *hw_info; int pipe; int ret; int alen; __u8 *command; __u8 *result; - int i; command_port = serial->port[COMMAND_PORT]; @@ -285,22 +286,6 @@ static int whiteheat_attach(struct usb_serial *serial) serial->type->description, hw_info->sw_major_rev, hw_info->sw_minor_rev); - for (i = 0; i < serial->num_ports; i++) { - port = serial->port[i]; - - info = kmalloc(sizeof(struct whiteheat_private), GFP_KERNEL); - if (info == NULL) { - dev_err(&port->dev, - "%s: Out of memory for port structures\n", - serial->type->description); - goto no_private; - } - - info->mcr = 0; - - usb_set_serial_port_data(port, info); - } - command_info = kmalloc(sizeof(struct whiteheat_command_private), GFP_KERNEL); if (command_info == NULL) { @@ -337,13 +322,6 @@ no_firmware: return -ENODEV; no_command_private: - for (i = serial->num_ports - 1; i >= 0; i--) { - port = serial->port[i]; - info = usb_get_serial_port_data(port); - kfree(info); -no_private: - ; - } kfree(result); no_result_buffer: kfree(command); @@ -351,21 +329,36 @@ no_command_buffer: return -ENOMEM; } - static void whiteheat_release(struct usb_serial *serial) { struct usb_serial_port *command_port; - struct whiteheat_private *info; - int i; /* free up our private data for our command port */ command_port = serial->port[COMMAND_PORT]; kfree(usb_get_serial_port_data(command_port)); +} - for (i = 0; i < serial->num_ports; i++) { - info = usb_get_serial_port_data(serial->port[i]); - kfree(info); - } +static int whiteheat_port_probe(struct usb_serial_port *port) +{ + struct whiteheat_private *info; + + info = kzalloc(sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + usb_set_serial_port_data(port, info); + + return 0; +} + +static int whiteheat_port_remove(struct usb_serial_port *port) +{ + struct whiteheat_private *info; + + info = usb_get_serial_port_data(port); + kfree(info); + + return 0; } static int whiteheat_open(struct tty_struct *tty, struct usb_serial_port *port) -- cgit v0.10.2 From 456c5be56ed070a4d883c60b587bcc1c97a8cf3e Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:03 +0200 Subject: USB: ch341: fix port-data memory leak Fix port-data memory leak by moving port data allocation to port_probe and actually implementing deallocation. Note that this driver has never even bothered to try to deallocate it's port data... Compile-only tested. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index e9c7046..d255f66 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -242,13 +242,11 @@ out: kfree(buffer); return r; } -/* allocate private data */ -static int ch341_attach(struct usb_serial *serial) +static int ch341_port_probe(struct usb_serial_port *port) { struct ch341_private *priv; int r; - /* private data */ priv = kzalloc(sizeof(struct ch341_private), GFP_KERNEL); if (!priv) return -ENOMEM; @@ -258,17 +256,27 @@ static int ch341_attach(struct usb_serial *serial) priv->baud_rate = DEFAULT_BAUD_RATE; priv->line_control = CH341_BIT_RTS | CH341_BIT_DTR; - r = ch341_configure(serial->dev, priv); + r = ch341_configure(port->serial->dev, priv); if (r < 0) goto error; - usb_set_serial_port_data(serial->port[0], priv); + usb_set_serial_port_data(port, priv); return 0; error: kfree(priv); return r; } +static int ch341_port_remove(struct usb_serial_port *port) +{ + struct ch341_private *priv; + + priv = usb_get_serial_port_data(port); + kfree(priv); + + return 0; +} + static int ch341_carrier_raised(struct usb_serial_port *port) { struct ch341_private *priv = usb_get_serial_port_data(port); @@ -304,7 +312,7 @@ static void ch341_close(struct usb_serial_port *port) static int ch341_open(struct tty_struct *tty, struct usb_serial_port *port) { struct usb_serial *serial = port->serial; - struct ch341_private *priv = usb_get_serial_port_data(serial->port[0]); + struct ch341_private *priv = usb_get_serial_port_data(port); int r; priv->baud_rate = DEFAULT_BAUD_RATE; @@ -608,7 +616,8 @@ static struct usb_serial_driver ch341_device = { .tiocmget = ch341_tiocmget, .tiocmset = ch341_tiocmset, .read_int_callback = ch341_read_int_callback, - .attach = ch341_attach, + .port_probe = ch341_port_probe, + .port_remove = ch341_port_remove, .reset_resume = ch341_reset_resume, }; -- cgit v0.10.2 From fb44ff854e148bc5c5982dad32da98b7a0989d2d Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:04 +0200 Subject: USB: digi_acceleport: fix port-data memory leak Fix port-data memory leak by moving port data allocation and deallocation to port_probe and port_remove. Since commit 0998d0631001288 (device-core: Ensure drvdata = NULL when no driver is bound) the port private data is no longer freed at release as it is no longer accessible. Note that the oob port is never registered as a port device and should thus be handled in attach and release. Compile-only tested. Cc: Peter Berger Cc: Al Borchers Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index c86f68c..b50fa1c 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -244,6 +244,8 @@ static int digi_startup_device(struct usb_serial *serial); static int digi_startup(struct usb_serial *serial); static void digi_disconnect(struct usb_serial *serial); static void digi_release(struct usb_serial *serial); +static int digi_port_probe(struct usb_serial_port *port); +static int digi_port_remove(struct usb_serial_port *port); static void digi_read_bulk_callback(struct urb *urb); static int digi_read_inb_callback(struct urb *urb); static int digi_read_oob_callback(struct urb *urb); @@ -294,6 +296,8 @@ static struct usb_serial_driver digi_acceleport_2_device = { .attach = digi_startup, .disconnect = digi_disconnect, .release = digi_release, + .port_probe = digi_port_probe, + .port_remove = digi_port_remove, }; static struct usb_serial_driver digi_acceleport_4_device = { @@ -320,6 +324,8 @@ static struct usb_serial_driver digi_acceleport_4_device = { .attach = digi_startup, .disconnect = digi_disconnect, .release = digi_release, + .port_probe = digi_port_probe, + .port_remove = digi_port_remove, }; static struct usb_serial_driver * const serial_drivers[] = { @@ -1240,59 +1246,50 @@ static int digi_startup_device(struct usb_serial *serial) return ret; } - -static int digi_startup(struct usb_serial *serial) +static int digi_port_init(struct usb_serial_port *port, unsigned port_num) { - - int i; struct digi_port *priv; - struct digi_serial *serial_priv; - /* allocate the private data structures for all ports */ - /* number of regular ports + 1 for the out-of-band port */ - for (i = 0; i < serial->type->num_ports + 1; i++) { - /* allocate port private structure */ - priv = kmalloc(sizeof(struct digi_port), GFP_KERNEL); - if (priv == NULL) { - while (--i >= 0) - kfree(usb_get_serial_port_data(serial->port[i])); - return 1; /* error */ - } + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; - /* initialize port private structure */ - spin_lock_init(&priv->dp_port_lock); - priv->dp_port_num = i; - priv->dp_out_buf_len = 0; - priv->dp_write_urb_in_use = 0; - priv->dp_modem_signals = 0; - init_waitqueue_head(&priv->dp_modem_change_wait); - priv->dp_transmit_idle = 0; - init_waitqueue_head(&priv->dp_transmit_idle_wait); - priv->dp_throttled = 0; - priv->dp_throttle_restart = 0; - init_waitqueue_head(&priv->dp_flush_wait); - init_waitqueue_head(&priv->dp_close_wait); - INIT_WORK(&priv->dp_wakeup_work, digi_wakeup_write_lock); - priv->dp_port = serial->port[i]; - /* initialize write wait queue for this port */ - init_waitqueue_head(&serial->port[i]->write_wait); - - usb_set_serial_port_data(serial->port[i], priv); - } + spin_lock_init(&priv->dp_port_lock); + priv->dp_port_num = port_num; + init_waitqueue_head(&priv->dp_modem_change_wait); + init_waitqueue_head(&priv->dp_transmit_idle_wait); + init_waitqueue_head(&priv->dp_flush_wait); + init_waitqueue_head(&priv->dp_close_wait); + INIT_WORK(&priv->dp_wakeup_work, digi_wakeup_write_lock); + priv->dp_port = port; - /* allocate serial private structure */ - serial_priv = kmalloc(sizeof(struct digi_serial), GFP_KERNEL); - if (serial_priv == NULL) { - for (i = 0; i < serial->type->num_ports + 1; i++) - kfree(usb_get_serial_port_data(serial->port[i])); - return 1; /* error */ - } + init_waitqueue_head(&port->write_wait); + + usb_set_serial_port_data(port, priv); + + return 0; +} + +static int digi_startup(struct usb_serial *serial) +{ + struct digi_serial *serial_priv; + int ret; + + serial_priv = kzalloc(sizeof(*serial_priv), GFP_KERNEL); + if (!serial_priv) + return -ENOMEM; - /* initialize serial private structure */ spin_lock_init(&serial_priv->ds_serial_lock); serial_priv->ds_oob_port_num = serial->type->num_ports; serial_priv->ds_oob_port = serial->port[serial_priv->ds_oob_port_num]; - serial_priv->ds_device_started = 0; + + ret = digi_port_init(serial_priv->ds_oob_port, + serial_priv->ds_oob_port_num); + if (ret) { + kfree(serial_priv); + return ret; + } + usb_set_serial_data(serial, serial_priv); return 0; @@ -1313,15 +1310,35 @@ static void digi_disconnect(struct usb_serial *serial) static void digi_release(struct usb_serial *serial) { - int i; + struct digi_serial *serial_priv; + struct digi_port *priv; + + serial_priv = usb_get_serial_data(serial); + + priv = usb_get_serial_port_data(serial_priv->ds_oob_port); + kfree(priv); - /* free the private data structures for all ports */ - /* number of regular ports + 1 for the out-of-band port */ - for (i = 0; i < serial->type->num_ports + 1; i++) - kfree(usb_get_serial_port_data(serial->port[i])); - kfree(usb_get_serial_data(serial)); + kfree(serial_priv); } +static int digi_port_probe(struct usb_serial_port *port) +{ + unsigned port_num; + + port_num = port->number - port->serial->minor; + + return digi_port_init(port, port_num); +} + +static int digi_port_remove(struct usb_serial_port *port) +{ + struct digi_port *priv; + + priv = usb_get_serial_port_data(port); + kfree(priv); + + return 0; +} static void digi_read_bulk_callback(struct urb *urb) { -- cgit v0.10.2 From 4230af572f95b3115bba1ee6fb95681f3851ab26 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:05 +0200 Subject: USB: mos7720: fix port-data memory leak Fix port-data memory leak by moving port data allocation and deallocation to port_probe and port_remove. Since commit 0998d0631001288 (device-core: Ensure drvdata = NULL when no driver is bound) the port private data is no longer freed at release as it is no longer accessible. Note that this patch also fixes a second port-data memory leak in the error path of attach, should parallel-port initialisation fail. Compile-only tested. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 1bf1ad0..7526742 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -1966,9 +1966,7 @@ static int mos7720_ioctl(struct tty_struct *tty, static int mos7720_startup(struct usb_serial *serial) { - struct moschip_port *mos7720_port; struct usb_device *dev; - int i; char data; u16 product; int ret_val; @@ -1999,29 +1997,6 @@ static int mos7720_startup(struct usb_serial *serial) serial->port[1]->interrupt_in_buffer = NULL; } - - /* set up serial port private structures */ - for (i = 0; i < serial->num_ports; ++i) { - mos7720_port = kzalloc(sizeof(struct moschip_port), GFP_KERNEL); - if (mos7720_port == NULL) { - dev_err(&dev->dev, "%s - Out of memory\n", __func__); - return -ENOMEM; - } - - /* Initialize all port interrupt end point to port 0 int - * endpoint. Our device has only one interrupt endpoint - * common to all ports */ - serial->port[i]->interrupt_in_endpointAddress = - serial->port[0]->interrupt_in_endpointAddress; - - mos7720_port->port = serial->port[i]; - usb_set_serial_port_data(serial->port[i], mos7720_port); - - dev_dbg(&dev->dev, "port number is %d\n", serial->port[i]->number); - dev_dbg(&dev->dev, "serial number is %d\n", serial->minor); - } - - /* setting configuration feature to one */ usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), (__u8)0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5*HZ); @@ -2049,8 +2024,6 @@ static int mos7720_startup(struct usb_serial *serial) static void mos7720_release(struct usb_serial *serial) { - int i; - #ifdef CONFIG_USB_SERIAL_MOS7715_PARPORT /* close the parallel port */ @@ -2089,9 +2062,36 @@ static void mos7720_release(struct usb_serial *serial) kref_put(&mos_parport->ref_count, destroy_mos_parport); } #endif - /* free private structure allocated for serial port */ - for (i = 0; i < serial->num_ports; ++i) - kfree(usb_get_serial_port_data(serial->port[i])); +} + +static int mos7720_port_probe(struct usb_serial_port *port) +{ + struct moschip_port *mos7720_port; + + mos7720_port = kzalloc(sizeof(*mos7720_port), GFP_KERNEL); + if (!mos7720_port) + return -ENOMEM; + + /* Initialize all port interrupt end point to port 0 int endpoint. + * Our device has only one interrupt endpoint common to all ports. + */ + port->interrupt_in_endpointAddress = + port->serial->port[0]->interrupt_in_endpointAddress; + mos7720_port->port = port; + + usb_set_serial_port_data(port, mos7720_port); + + return 0; +} + +static int mos7720_port_remove(struct usb_serial_port *port) +{ + struct moschip_port *mos7720_port; + + mos7720_port = usb_get_serial_port_data(port); + kfree(mos7720_port); + + return 0; } static struct usb_serial_driver moschip7720_2port_driver = { @@ -2109,6 +2109,8 @@ static struct usb_serial_driver moschip7720_2port_driver = { .probe = mos77xx_probe, .attach = mos7720_startup, .release = mos7720_release, + .port_probe = mos7720_port_probe, + .port_remove = mos7720_port_remove, .ioctl = mos7720_ioctl, .tiocmget = mos7720_tiocmget, .tiocmset = mos7720_tiocmset, -- cgit v0.10.2 From feffa7ca6008ab859dd7ab7448a5a899bf0aa98f Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:06 +0200 Subject: USB: omninet: fix port-data memory leak Fix port-data memory leak by replacing attach and release with port_probe and port_remove. Since commit 0998d0631001288 (device-core: Ensure drvdata = NULL when no driver is bound) the port private data is no longer freed at release as it is no longer accessible. Compile-only tested. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c index 6def58b..9ab73d2 100644 --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -44,8 +44,8 @@ static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); static int omninet_write_room(struct tty_struct *tty); static void omninet_disconnect(struct usb_serial *serial); -static void omninet_release(struct usb_serial *serial); -static int omninet_attach(struct usb_serial *serial); +static int omninet_port_probe(struct usb_serial_port *port); +static int omninet_port_remove(struct usb_serial_port *port); static const struct usb_device_id id_table[] = { { USB_DEVICE(ZYXEL_VENDOR_ID, ZYXEL_OMNINET_ID) }, @@ -62,7 +62,8 @@ static struct usb_serial_driver zyxel_omninet_device = { .description = "ZyXEL - omni.net lcd plus usb", .id_table = id_table, .num_ports = 1, - .attach = omninet_attach, + .port_probe = omninet_port_probe, + .port_remove = omninet_port_remove, .open = omninet_open, .close = omninet_close, .write = omninet_write, @@ -70,7 +71,6 @@ static struct usb_serial_driver zyxel_omninet_device = { .read_bulk_callback = omninet_read_bulk_callback, .write_bulk_callback = omninet_write_bulk_callback, .disconnect = omninet_disconnect, - .release = omninet_release, }; static struct usb_serial_driver * const serial_drivers[] = { @@ -112,18 +112,26 @@ struct omninet_data { __u8 od_outseq; /* Sequence number for bulk_out URBs */ }; -static int omninet_attach(struct usb_serial *serial) +static int omninet_port_probe(struct usb_serial_port *port) { struct omninet_data *od; - struct usb_serial_port *port = serial->port[0]; od = kmalloc(sizeof(struct omninet_data), GFP_KERNEL); - if (!od) { - dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", - __func__, sizeof(struct omninet_data)); + if (!od) return -ENOMEM; - } + usb_set_serial_port_data(port, od); + + return 0; +} + +static int omninet_port_remove(struct usb_serial_port *port) +{ + struct omninet_data *od; + + od = usb_get_serial_port_data(port); + kfree(od); + return 0; } @@ -279,14 +287,6 @@ static void omninet_disconnect(struct usb_serial *serial) usb_kill_urb(wport->write_urb); } - -static void omninet_release(struct usb_serial *serial) -{ - struct usb_serial_port *port = serial->port[0]; - - kfree(usb_get_serial_port_data(port)); -} - module_usb_serial_driver(serial_drivers, id_table); MODULE_AUTHOR(DRIVER_AUTHOR); -- cgit v0.10.2 From b8a0055050b6294826171641b182c09f78f4cc63 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:07 +0200 Subject: USB: quatech2: fix memory leak in error path Fix memory leak in attach error path where the read urb was never freed. Cc: Bill Pemberton Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index 2cdfdcc..5adb742 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -823,6 +823,7 @@ static int qt2_setup_urbs(struct usb_serial *serial) if (status != 0) { dev_err(&serial->dev->dev, "%s - submit read urb failed %i\n", __func__, status); + usb_free_urb(serial_priv->read_urb); return status; } -- cgit v0.10.2 From 40d04738491d7ac1aa708ba434ff3480ec9e1b96 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:08 +0200 Subject: USB: quatech2: fix port-data memory leaks Fix port-data memory leak by moving port data allocation and deallocation to port_probe and port_remove. Since commit 0998d0631001288 (device-core: Ensure drvdata = NULL when no driver is bound) the port private data is no longer freed at release as it is no longer accessible. Note that this also fixes memory leaks in the error path of attach where the write urbs were not freed on errors. Make sure all interface-data deallocation is done in release by moving the read urb deallocation from disconnect. Note that the write urb is killed during close so that the call in disconnect was superfluous. Compile-only tested. Cc: Bill Pemberton Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index 5adb742..8d0c4a0 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -143,12 +143,12 @@ static void qt2_read_bulk_callback(struct urb *urb); static void qt2_release(struct usb_serial *serial) { - int i; + struct qt2_serial_private *serial_priv; - kfree(usb_get_serial_data(serial)); + serial_priv = usb_get_serial_data(serial); - for (i = 0; i < serial->num_ports; i++) - kfree(usb_get_serial_port_data(serial->port[i])); + usb_free_urb(serial_priv->read_urb); + kfree(serial_priv); } static inline int calc_baud_divisor(int baudrate) @@ -464,21 +464,9 @@ static void qt2_close(struct usb_serial_port *port) static void qt2_disconnect(struct usb_serial *serial) { struct qt2_serial_private *serial_priv = usb_get_serial_data(serial); - struct qt2_port_private *port_priv; - int i; if (serial_priv->read_urb->status == -EINPROGRESS) usb_kill_urb(serial_priv->read_urb); - - usb_free_urb(serial_priv->read_urb); - - for (i = 0; i < serial->num_ports; i++) { - port_priv = usb_get_serial_port_data(serial->port[i]); - - if (port_priv->write_urb->status == -EINPROGRESS) - usb_kill_urb(port_priv->write_urb); - usb_free_urb(port_priv->write_urb); - } } static int get_serial_info(struct usb_serial_port *port, @@ -773,11 +761,9 @@ static void qt2_read_bulk_callback(struct urb *urb) static int qt2_setup_urbs(struct usb_serial *serial) { - struct usb_serial_port *port; struct usb_serial_port *port0; struct qt2_serial_private *serial_priv; - struct qt2_port_private *port_priv; - int pcount, status; + int status; port0 = serial->port[0]; @@ -795,30 +781,6 @@ static int qt2_setup_urbs(struct usb_serial *serial) sizeof(serial_priv->read_buffer), qt2_read_bulk_callback, serial); - /* setup write_urb for each port */ - for (pcount = 0; pcount < serial->num_ports; pcount++) { - - port = serial->port[pcount]; - port_priv = usb_get_serial_port_data(port); - - port_priv->write_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!port_priv->write_urb) { - dev_err(&serial->dev->dev, - "failed to alloc write_urb for port %i\n", - pcount); - return -ENOMEM; - } - - usb_fill_bulk_urb(port_priv->write_urb, - serial->dev, - usb_sndbulkpipe(serial->dev, - port0-> - bulk_out_endpointAddress), - port_priv->write_buffer, - sizeof(port_priv->write_buffer), - qt2_write_bulk_callback, port); - } - status = usb_submit_urb(serial_priv->read_urb, GFP_KERNEL); if (status != 0) { dev_err(&serial->dev->dev, @@ -828,14 +790,12 @@ static int qt2_setup_urbs(struct usb_serial *serial) } return 0; - } static int qt2_attach(struct usb_serial *serial) { struct qt2_serial_private *serial_priv; - struct qt2_port_private *port_priv; - int status, pcount; + int status; /* power on unit */ status = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), @@ -855,26 +815,6 @@ static int qt2_attach(struct usb_serial *serial) usb_set_serial_data(serial, serial_priv); - for (pcount = 0; pcount < serial->num_ports; pcount++) { - port_priv = kzalloc(sizeof(*port_priv), GFP_KERNEL); - if (!port_priv) { - dev_err(&serial->dev->dev, - "%s- kmalloc(%Zd) failed.\n", __func__, - sizeof(*port_priv)); - pcount--; - status = -ENOMEM; - goto attach_failed; - } - - spin_lock_init(&port_priv->lock); - spin_lock_init(&port_priv->urb_lock); - init_waitqueue_head(&port_priv->delta_msr_wait); - - port_priv->port = serial->port[pcount]; - - usb_set_serial_port_data(serial->port[pcount], port_priv); - } - status = qt2_setup_urbs(serial); if (status != 0) goto attach_failed; @@ -882,14 +822,53 @@ static int qt2_attach(struct usb_serial *serial) return 0; attach_failed: - for (/* empty */; pcount >= 0; pcount--) { - port_priv = usb_get_serial_port_data(serial->port[pcount]); - kfree(port_priv); - } kfree(serial_priv); return status; } +static int qt2_port_probe(struct usb_serial_port *port) +{ + struct usb_serial *serial = port->serial; + struct qt2_port_private *port_priv; + u8 bEndpointAddress; + + port_priv = kzalloc(sizeof(*port_priv), GFP_KERNEL); + if (!port_priv) + return -ENOMEM; + + spin_lock_init(&port_priv->lock); + spin_lock_init(&port_priv->urb_lock); + init_waitqueue_head(&port_priv->delta_msr_wait); + port_priv->port = port; + + port_priv->write_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!port_priv->write_urb) { + kfree(port_priv); + return -ENOMEM; + } + bEndpointAddress = serial->port[0]->bulk_out_endpointAddress; + usb_fill_bulk_urb(port_priv->write_urb, serial->dev, + usb_sndbulkpipe(serial->dev, bEndpointAddress), + port_priv->write_buffer, + sizeof(port_priv->write_buffer), + qt2_write_bulk_callback, port); + + usb_set_serial_port_data(port, port_priv); + + return 0; +} + +static int qt2_port_remove(struct usb_serial_port *port) +{ + struct qt2_port_private *port_priv; + + port_priv = usb_get_serial_port_data(port); + usb_free_urb(port_priv->write_urb); + kfree(port_priv); + + return 0; +} + static int qt2_tiocmget(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; @@ -1128,6 +1107,8 @@ static struct usb_serial_driver qt2_device = { .attach = qt2_attach, .release = qt2_release, .disconnect = qt2_disconnect, + .port_probe = qt2_port_probe, + .port_remove = qt2_port_remove, .dtr_rts = qt2_dtr_rts, .break_ctl = qt2_break_ctl, .tiocmget = qt2_tiocmget, -- cgit v0.10.2 From 8e512ab0b675da20e023439a5811e3f2554e6852 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:09 +0200 Subject: USB: quatech2: fix close and disconnect urb handling Kill urbs unconditionally at close and disconnect. Note that URB status is not valid outside of completion handler. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index 8d0c4a0..7e8d8f3 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -423,8 +423,7 @@ static void qt2_close(struct usb_serial_port *port) port_priv->is_open = false; spin_lock_irqsave(&port_priv->urb_lock, flags); - if (port_priv->write_urb->status == -EINPROGRESS) - usb_kill_urb(port_priv->write_urb); + usb_kill_urb(port_priv->write_urb); port_priv->urb_in_use = false; spin_unlock_irqrestore(&port_priv->urb_lock, flags); @@ -465,8 +464,7 @@ static void qt2_disconnect(struct usb_serial *serial) { struct qt2_serial_private *serial_priv = usb_get_serial_data(serial); - if (serial_priv->read_urb->status == -EINPROGRESS) - usb_kill_urb(serial_priv->read_urb); + usb_kill_urb(serial_priv->read_urb); } static int get_serial_info(struct usb_serial_port *port, -- cgit v0.10.2 From 2f0295adf6438188c4cd0868f2b1976a2b034e1d Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:10 +0200 Subject: USB: quatech2: fix io after disconnect Make sure no control urb is submitted during close after a disconnect by checking the disconnected flag. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index 7e8d8f3..ffcfc96 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -427,6 +427,12 @@ static void qt2_close(struct usb_serial_port *port) port_priv->urb_in_use = false; spin_unlock_irqrestore(&port_priv->urb_lock, flags); + mutex_lock(&port->serial->disc_mutex); + if (port->serial->disconnected) { + mutex_unlock(&port->serial->disc_mutex); + return; + } + /* flush the port transmit buffer */ i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), @@ -458,6 +464,7 @@ static void qt2_close(struct usb_serial_port *port) dev_err(&port->dev, "%s - close port failed %i\n", __func__, i); + mutex_unlock(&port->serial->disc_mutex); } static void qt2_disconnect(struct usb_serial *serial) -- cgit v0.10.2 From ea0dbebffe118724cd4df7d9b071ea8ee48d48f0 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:11 +0200 Subject: USB: opticon: fix DMA from stack Make sure to allocate the control-message buffer dynamically as some platforms cannot do DMA from stack. Note that only the first byte of the old buffer was used. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index 41b1647..459c288 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -155,7 +155,11 @@ static int send_control_msg(struct usb_serial_port *port, u8 requesttype, { struct usb_serial *serial = port->serial; int retval; - u8 buffer[2]; + u8 *buffer; + + buffer = kzalloc(1, GFP_KERNEL); + if (!buffer) + return -ENOMEM; buffer[0] = val; /* Send the message to the vendor control endpoint @@ -164,6 +168,7 @@ static int send_control_msg(struct usb_serial_port *port, u8 requesttype, requesttype, USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE, 0, 0, buffer, 1, 0); + kfree(buffer); return retval; } -- cgit v0.10.2 From acbf0e5263de563e25f7c104868e4490b9e72b13 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:12 +0200 Subject: USB: opticon: fix memory leak in error path Fix memory leak in write error path. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index 459c288..6aba731 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -286,7 +286,7 @@ static int opticon_write(struct tty_struct *tty, struct usb_serial_port *port, if (!dr) { dev_err(&port->dev, "out of memory\n"); count = -ENOMEM; - goto error; + goto error_no_dr; } dr->bRequestType = USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT; @@ -316,6 +316,8 @@ static int opticon_write(struct tty_struct *tty, struct usb_serial_port *port, return count; error: + kfree(dr); +error_no_dr: usb_free_urb(urb); error_no_urb: kfree(buffer); -- cgit v0.10.2 From a8f2ae7a3aa59079d7e7e1ddf5007f03532f458c Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:13 +0200 Subject: USB: mct_u232: fix port-data memory leak Fix port-data memory leak by moving port data allocation and deallocation to port_probe and port_remove. Since commit 0998d0631001288 (device-core: Ensure drvdata = NULL when no driver is bound) the port private data is no longer freed at release as it is no longer accessible. Note that the write waitqueue was initialised but never used. Compile-only tested. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index f394771..a8bce13 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -49,7 +49,8 @@ * Function prototypes */ static int mct_u232_startup(struct usb_serial *serial); -static void mct_u232_release(struct usb_serial *serial); +static int mct_u232_port_probe(struct usb_serial_port *port); +static int mct_u232_port_remove(struct usb_serial_port *remove); static int mct_u232_open(struct tty_struct *tty, struct usb_serial_port *port); static void mct_u232_close(struct usb_serial_port *port); static void mct_u232_dtr_rts(struct usb_serial_port *port, int on); @@ -99,7 +100,8 @@ static struct usb_serial_driver mct_u232_device = { .tiocmget = mct_u232_tiocmget, .tiocmset = mct_u232_tiocmset, .attach = mct_u232_startup, - .release = mct_u232_release, + .port_probe = mct_u232_port_probe, + .port_remove = mct_u232_port_remove, .ioctl = mct_u232_ioctl, .get_icount = mct_u232_get_icount, }; @@ -388,18 +390,8 @@ static void mct_u232_msr_to_state(struct usb_serial_port *port, static int mct_u232_startup(struct usb_serial *serial) { - struct mct_u232_private *priv; struct usb_serial_port *port, *rport; - priv = kzalloc(sizeof(struct mct_u232_private), GFP_KERNEL); - if (!priv) - return -ENOMEM; - spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->msr_wait); - usb_set_serial_port_data(serial->port[0], priv); - - init_waitqueue_head(&serial->port[0]->write_wait); - /* Puh, that's dirty */ port = serial->port[0]; rport = serial->port[1]; @@ -412,18 +404,31 @@ static int mct_u232_startup(struct usb_serial *serial) return 0; } /* mct_u232_startup */ +static int mct_u232_port_probe(struct usb_serial_port *port) +{ + struct mct_u232_private *priv; + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; -static void mct_u232_release(struct usb_serial *serial) + spin_lock_init(&priv->lock); + init_waitqueue_head(&priv->msr_wait); + + usb_set_serial_port_data(port, priv); + + return 0; +} + +static int mct_u232_port_remove(struct usb_serial_port *port) { struct mct_u232_private *priv; - int i; - for (i = 0; i < serial->num_ports; ++i) { - /* My special items, the standard routines free my urbs */ - priv = usb_get_serial_port_data(serial->port[i]); - kfree(priv); - } -} /* mct_u232_release */ + priv = usb_get_serial_port_data(port); + kfree(priv); + + return 0; +} static int mct_u232_open(struct tty_struct *tty, struct usb_serial_port *port) { -- cgit v0.10.2 From 5260e458f5eff269a43e4f1e9c47186c57b88ddb Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:14 +0200 Subject: USB: mct_u232: fix broken close Make sure generic close is called at close. The driver relies on the generic write implementation but did not call generic close. Note that the call to kill the read urb is not redundant, as mct_u232 uses an interrupt urb from the second port as the read urb and that generic close therefore fails to kill it. Compile-only tested. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index a8bce13..8a20810 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -520,12 +520,14 @@ static void mct_u232_dtr_rts(struct usb_serial_port *port, int on) static void mct_u232_close(struct usb_serial_port *port) { - if (port->serial->dev) { - /* shutdown our urbs */ - usb_kill_urb(port->write_urb); - usb_kill_urb(port->read_urb); - usb_kill_urb(port->interrupt_in_urb); - } + /* + * Must kill the read urb as it is actually an interrupt urb, which + * generic close thus fails to kill. + */ + usb_kill_urb(port->read_urb); + usb_kill_urb(port->interrupt_in_urb); + + usb_serial_generic_close(port); } /* mct_u232_close */ -- cgit v0.10.2 From f79b2d0fe81eecb412dc48e87a119afc690da8e9 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:15 +0200 Subject: USB: keyspan: fix NULL-pointer dereferences and memory leaks Fix NULL-pointer dereference at release by moving port data allocation and deallocation to port_probe and port_remove. Fix NULL-pointer dereference at disconnect by stopping port urbs at port_remove. Since commit 0998d0631001288 (device-core: Ensure drvdata = NULL when no driver is bound) the port private data is no longer accessible at disconnect or release. Note that this patch also fixes port and interface-data memory leaks in the error path of attach should port initialisation fail for any port. Compile-only tested. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index 29c943d..7179b0c 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -1374,13 +1374,9 @@ static struct callbacks { data in device_details */ static void keyspan_setup_urbs(struct usb_serial *serial) { - int i, j; struct keyspan_serial_private *s_priv; const struct keyspan_device_details *d_details; - struct usb_serial_port *port; - struct keyspan_port_private *p_priv; struct callbacks *cback; - int endp; s_priv = usb_get_serial_data(serial); d_details = s_priv->device_details; @@ -1404,45 +1400,6 @@ static void keyspan_setup_urbs(struct usb_serial *serial) (serial, d_details->glocont_endpoint, USB_DIR_OUT, serial, s_priv->glocont_buf, GLOCONT_BUFLEN, cback->glocont_callback); - - /* Setup endpoints for each port specific thing */ - for (i = 0; i < d_details->num_ports; i++) { - port = serial->port[i]; - p_priv = usb_get_serial_port_data(port); - - /* Do indat endpoints first, once for each flip */ - endp = d_details->indat_endpoints[i]; - for (j = 0; j <= d_details->indat_endp_flip; ++j, ++endp) { - p_priv->in_urbs[j] = keyspan_setup_urb - (serial, endp, USB_DIR_IN, port, - p_priv->in_buffer[j], 64, - cback->indat_callback); - } - for (; j < 2; ++j) - p_priv->in_urbs[j] = NULL; - - /* outdat endpoints also have flip */ - endp = d_details->outdat_endpoints[i]; - for (j = 0; j <= d_details->outdat_endp_flip; ++j, ++endp) { - p_priv->out_urbs[j] = keyspan_setup_urb - (serial, endp, USB_DIR_OUT, port, - p_priv->out_buffer[j], 64, - cback->outdat_callback); - } - for (; j < 2; ++j) - p_priv->out_urbs[j] = NULL; - - /* inack endpoint */ - p_priv->inack_urb = keyspan_setup_urb - (serial, d_details->inack_endpoints[i], USB_DIR_IN, - port, p_priv->inack_buffer, 1, cback->inack_callback); - - /* outcont endpoint */ - p_priv->outcont_urb = keyspan_setup_urb - (serial, d_details->outcont_endpoints[i], USB_DIR_OUT, - port, p_priv->outcont_buffer, 64, - cback->outcont_callback); - } } /* usa19 function doesn't require prescaler */ @@ -2407,9 +2364,7 @@ static void keyspan_send_setup(struct usb_serial_port *port, int reset_port) static int keyspan_startup(struct usb_serial *serial) { int i, err; - struct usb_serial_port *port; struct keyspan_serial_private *s_priv; - struct keyspan_port_private *p_priv; const struct keyspan_device_details *d_details; for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i) @@ -2432,19 +2387,6 @@ static int keyspan_startup(struct usb_serial *serial) s_priv->device_details = d_details; usb_set_serial_data(serial, s_priv); - /* Now setup per port private data */ - for (i = 0; i < serial->num_ports; i++) { - port = serial->port[i]; - p_priv = kzalloc(sizeof(struct keyspan_port_private), - GFP_KERNEL); - if (!p_priv) { - dev_dbg(&port->dev, "%s - kmalloc for keyspan_port_private (%d) failed!.\n", __func__, i); - return 1; - } - p_priv->device_details = d_details; - usb_set_serial_port_data(port, p_priv); - } - keyspan_setup_urbs(serial); if (s_priv->instat_urb != NULL) { @@ -2463,59 +2405,112 @@ static int keyspan_startup(struct usb_serial *serial) static void keyspan_disconnect(struct usb_serial *serial) { - int i, j; - struct usb_serial_port *port; - struct keyspan_serial_private *s_priv; - struct keyspan_port_private *p_priv; + struct keyspan_serial_private *s_priv; s_priv = usb_get_serial_data(serial); - /* Stop reading/writing urbs */ stop_urb(s_priv->instat_urb); stop_urb(s_priv->glocont_urb); stop_urb(s_priv->indat_urb); - for (i = 0; i < serial->num_ports; ++i) { - port = serial->port[i]; - p_priv = usb_get_serial_port_data(port); - stop_urb(p_priv->inack_urb); - stop_urb(p_priv->outcont_urb); - for (j = 0; j < 2; j++) { - stop_urb(p_priv->in_urbs[j]); - stop_urb(p_priv->out_urbs[j]); - } - } +} + +static void keyspan_release(struct usb_serial *serial) +{ + struct keyspan_serial_private *s_priv; + + s_priv = usb_get_serial_data(serial); - /* Now free them */ usb_free_urb(s_priv->instat_urb); usb_free_urb(s_priv->indat_urb); usb_free_urb(s_priv->glocont_urb); - for (i = 0; i < serial->num_ports; ++i) { - port = serial->port[i]; - p_priv = usb_get_serial_port_data(port); - usb_free_urb(p_priv->inack_urb); - usb_free_urb(p_priv->outcont_urb); - for (j = 0; j < 2; j++) { - usb_free_urb(p_priv->in_urbs[j]); - usb_free_urb(p_priv->out_urbs[j]); - } - } + + kfree(s_priv); } -static void keyspan_release(struct usb_serial *serial) +static int keyspan_port_probe(struct usb_serial_port *port) { - int i; - struct usb_serial_port *port; - struct keyspan_serial_private *s_priv; + struct usb_serial *serial = port->serial; + struct keyspan_port_private *s_priv; + struct keyspan_port_private *p_priv; + const struct keyspan_device_details *d_details; + struct callbacks *cback; + int endp; + int port_num; + int i; s_priv = usb_get_serial_data(serial); + d_details = s_priv->device_details; - kfree(s_priv); + p_priv = kzalloc(sizeof(*p_priv), GFP_KERNEL); + if (!p_priv) + return -ENOMEM; - /* Now free per port private data */ - for (i = 0; i < serial->num_ports; i++) { - port = serial->port[i]; - kfree(usb_get_serial_port_data(port)); + s_priv = usb_get_serial_data(port->serial); + p_priv->device_details = d_details; + + /* Setup values for the various callback routines */ + cback = &keyspan_callbacks[d_details->msg_format]; + + port_num = port->number - port->serial->minor; + + /* Do indat endpoints first, once for each flip */ + endp = d_details->indat_endpoints[port_num]; + for (i = 0; i <= d_details->indat_endp_flip; ++i, ++endp) { + p_priv->in_urbs[i] = keyspan_setup_urb(serial, endp, + USB_DIR_IN, port, + p_priv->in_buffer[i], 64, + cback->indat_callback); + } + /* outdat endpoints also have flip */ + endp = d_details->outdat_endpoints[port_num]; + for (i = 0; i <= d_details->outdat_endp_flip; ++i, ++endp) { + p_priv->out_urbs[i] = keyspan_setup_urb(serial, endp, + USB_DIR_OUT, port, + p_priv->out_buffer[i], 64, + cback->outdat_callback); + } + /* inack endpoint */ + p_priv->inack_urb = keyspan_setup_urb(serial, + d_details->inack_endpoints[port_num], + USB_DIR_IN, port, + p_priv->inack_buffer, 1, + cback->inack_callback); + /* outcont endpoint */ + p_priv->outcont_urb = keyspan_setup_urb(serial, + d_details->outcont_endpoints[port_num], + USB_DIR_OUT, port, + p_priv->outcont_buffer, 64, + cback->outcont_callback); + + usb_set_serial_port_data(port, p_priv); + + return 0; +} + +static int keyspan_port_remove(struct usb_serial_port *port) +{ + struct keyspan_port_private *p_priv; + int i; + + p_priv = usb_get_serial_port_data(port); + + stop_urb(p_priv->inack_urb); + stop_urb(p_priv->outcont_urb); + for (i = 0; i < 2; i++) { + stop_urb(p_priv->in_urbs[i]); + stop_urb(p_priv->out_urbs[i]); + } + + usb_free_urb(p_priv->inack_urb); + usb_free_urb(p_priv->outcont_urb); + for (i = 0; i < 2; i++) { + usb_free_urb(p_priv->in_urbs[i]); + usb_free_urb(p_priv->out_urbs[i]); } + + kfree(p_priv); + + return 0; } MODULE_AUTHOR(DRIVER_AUTHOR); diff --git a/drivers/usb/serial/keyspan.h b/drivers/usb/serial/keyspan.h index 0a8a40b..0273dda 100644 --- a/drivers/usb/serial/keyspan.h +++ b/drivers/usb/serial/keyspan.h @@ -42,6 +42,8 @@ static void keyspan_dtr_rts (struct usb_serial_port *port, int on); static int keyspan_startup (struct usb_serial *serial); static void keyspan_disconnect (struct usb_serial *serial); static void keyspan_release (struct usb_serial *serial); +static int keyspan_port_probe(struct usb_serial_port *port); +static int keyspan_port_remove(struct usb_serial_port *port); static int keyspan_write_room (struct tty_struct *tty); static int keyspan_write (struct tty_struct *tty, @@ -567,6 +569,8 @@ static struct usb_serial_driver keyspan_1port_device = { .attach = keyspan_startup, .disconnect = keyspan_disconnect, .release = keyspan_release, + .port_probe = keyspan_port_probe, + .port_remove = keyspan_port_remove, }; static struct usb_serial_driver keyspan_2port_device = { @@ -589,6 +593,8 @@ static struct usb_serial_driver keyspan_2port_device = { .attach = keyspan_startup, .disconnect = keyspan_disconnect, .release = keyspan_release, + .port_probe = keyspan_port_probe, + .port_remove = keyspan_port_remove, }; static struct usb_serial_driver keyspan_4port_device = { @@ -611,6 +617,8 @@ static struct usb_serial_driver keyspan_4port_device = { .attach = keyspan_startup, .disconnect = keyspan_disconnect, .release = keyspan_release, + .port_probe = keyspan_port_probe, + .port_remove = keyspan_port_remove, }; static struct usb_serial_driver * const serial_drivers[] = { -- cgit v0.10.2 From b8f0e82044c9ba40e92340c8a6d47d6bd6d819bc Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:16 +0200 Subject: USB: usb-wwan: fix multiple memory leaks in error paths Fix port-data memory leak in usb-serial probe error path by moving port data allocation to port_probe. Since commit a1028f0abf ("usb: usb_wwan: replace release and disconnect with a port_remove hook") port data is deallocated in port_remove. This leaves a possibility for memory leaks if usb-serial probe fails after attach but before the port in question has been successfully registered. Note that this patch also fixes two additional memory leaks in the error path of attach should port initialisation fail for any port as the urbs were never freed and neither was the data of any of the successfully initialised ports. Compile-only tested. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c index 20a132e..add45b7 100644 --- a/drivers/usb/serial/ipw.c +++ b/drivers/usb/serial/ipw.c @@ -304,8 +304,8 @@ static struct usb_serial_driver ipw_device = { .open = ipw_open, .close = ipw_close, .probe = ipw_probe, - .attach = usb_wwan_startup, .release = ipw_release, + .port_probe = usb_wwan_port_probe, .port_remove = usb_wwan_port_remove, .dtr_rts = ipw_dtr_rts, .write = usb_wwan_write, diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 54d4148..eb4bdd4 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -1288,8 +1288,8 @@ static struct usb_serial_driver option_1port_device = { .tiocmget = usb_wwan_tiocmget, .tiocmset = usb_wwan_tiocmset, .ioctl = usb_wwan_ioctl, - .attach = usb_wwan_startup, .release = option_release, + .port_probe = usb_wwan_port_probe, .port_remove = usb_wwan_port_remove, .read_int_callback = option_instat_callback, #ifdef CONFIG_PM diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c index c3ddb65..8dd2280 100644 --- a/drivers/usb/serial/qcserial.c +++ b/drivers/usb/serial/qcserial.c @@ -285,8 +285,8 @@ static struct usb_serial_driver qcdevice = { .write = usb_wwan_write, .write_room = usb_wwan_write_room, .chars_in_buffer = usb_wwan_chars_in_buffer, - .attach = usb_wwan_startup, .release = qc_release, + .port_probe = usb_wwan_port_probe, .port_remove = usb_wwan_port_remove, #ifdef CONFIG_PM .suspend = usb_wwan_suspend, diff --git a/drivers/usb/serial/usb-wwan.h b/drivers/usb/serial/usb-wwan.h index 1f034d2..684739b 100644 --- a/drivers/usb/serial/usb-wwan.h +++ b/drivers/usb/serial/usb-wwan.h @@ -8,7 +8,7 @@ extern void usb_wwan_dtr_rts(struct usb_serial_port *port, int on); extern int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port); extern void usb_wwan_close(struct usb_serial_port *port); -extern int usb_wwan_startup(struct usb_serial *serial); +extern int usb_wwan_port_probe(struct usb_serial_port *port); extern int usb_wwan_port_remove(struct usb_serial_port *port); extern int usb_wwan_write_room(struct tty_struct *tty); extern void usb_wwan_set_termios(struct tty_struct *tty, diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c index e42aa39..61a73ad 100644 --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -447,10 +447,12 @@ void usb_wwan_close(struct usb_serial_port *port) EXPORT_SYMBOL(usb_wwan_close); /* Helper functions used by usb_wwan_setup_urbs */ -static struct urb *usb_wwan_setup_urb(struct usb_serial *serial, int endpoint, +static struct urb *usb_wwan_setup_urb(struct usb_serial_port *port, + int endpoint, int dir, void *ctx, char *buf, int len, void (*callback) (struct urb *)) { + struct usb_serial *serial = port->serial; struct urb *urb; if (endpoint == -1) @@ -472,101 +474,75 @@ static struct urb *usb_wwan_setup_urb(struct usb_serial *serial, int endpoint, return urb; } -/* Setup urbs */ -static void usb_wwan_setup_urbs(struct usb_serial *serial) +int usb_wwan_port_probe(struct usb_serial_port *port) { - int i, j; - struct usb_serial_port *port; struct usb_wwan_port_private *portdata; + struct urb *urb; + u8 *buffer; + int err; + int i; - for (i = 0; i < serial->num_ports; i++) { - port = serial->port[i]; - portdata = usb_get_serial_port_data(port); + portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); + if (!portdata) + return -ENOMEM; - /* Do indat endpoints first */ - for (j = 0; j < N_IN_URB; ++j) { - portdata->in_urbs[j] = usb_wwan_setup_urb(serial, - port-> - bulk_in_endpointAddress, - USB_DIR_IN, - port, - portdata-> - in_buffer[j], - IN_BUFLEN, - usb_wwan_indat_callback); - } + init_usb_anchor(&portdata->delayed); - /* outdat endpoints */ - for (j = 0; j < N_OUT_URB; ++j) { - portdata->out_urbs[j] = usb_wwan_setup_urb(serial, - port-> - bulk_out_endpointAddress, - USB_DIR_OUT, - port, - portdata-> - out_buffer - [j], - OUT_BUFLEN, - usb_wwan_outdat_callback); - } + for (i = 0; i < N_IN_URB; i++) { + buffer = (u8 *)__get_free_page(GFP_KERNEL); + if (!buffer) + goto bail_out_error; + portdata->in_buffer[i] = buffer; + + urb = usb_wwan_setup_urb(port, port->bulk_in_endpointAddress, + USB_DIR_IN, port, + buffer, IN_BUFLEN, + usb_wwan_indat_callback); + portdata->in_urbs[i] = urb; } -} - -int usb_wwan_startup(struct usb_serial *serial) -{ - int i, j, err; - struct usb_serial_port *port; - struct usb_wwan_port_private *portdata; - u8 *buffer; - /* Now setup per port private data */ - for (i = 0; i < serial->num_ports; i++) { - port = serial->port[i]; - portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); - if (!portdata) { - dev_dbg(&port->dev, "%s: kmalloc for usb_wwan_port_private (%d) failed!.\n", - __func__, i); - return 1; - } - init_usb_anchor(&portdata->delayed); + for (i = 0; i < N_OUT_URB; i++) { + if (port->bulk_out_endpointAddress == -1) + continue; - for (j = 0; j < N_IN_URB; j++) { - buffer = (u8 *) __get_free_page(GFP_KERNEL); - if (!buffer) - goto bail_out_error; - portdata->in_buffer[j] = buffer; - } + buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL); + if (!buffer) + goto bail_out_error2; + portdata->out_buffer[i] = buffer; - for (j = 0; j < N_OUT_URB; j++) { - buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL); - if (!buffer) - goto bail_out_error2; - portdata->out_buffer[j] = buffer; - } + urb = usb_wwan_setup_urb(port, port->bulk_out_endpointAddress, + USB_DIR_OUT, port, + buffer, OUT_BUFLEN, + usb_wwan_outdat_callback); + portdata->out_urbs[i] = urb; + } - usb_set_serial_port_data(port, portdata); + usb_set_serial_port_data(port, portdata); - if (!port->interrupt_in_urb) - continue; + if (port->interrupt_in_urb) { err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (err) dev_dbg(&port->dev, "%s: submit irq_in urb failed %d\n", __func__, err); } - usb_wwan_setup_urbs(serial); + return 0; bail_out_error2: - for (j = 0; j < N_OUT_URB; j++) - kfree(portdata->out_buffer[j]); + for (i = 0; i < N_OUT_URB; i++) { + usb_free_urb(portdata->out_urbs[i]); + kfree(portdata->out_buffer[i]); + } bail_out_error: - for (j = 0; j < N_IN_URB; j++) - if (portdata->in_buffer[j]) - free_page((unsigned long)portdata->in_buffer[j]); + for (i = 0; i < N_IN_URB; i++) { + usb_free_urb(portdata->in_urbs[i]); + free_page((unsigned long)portdata->in_buffer[i]); + } kfree(portdata); - return 1; + + return -ENOMEM; } -EXPORT_SYMBOL(usb_wwan_startup); +EXPORT_SYMBOL_GPL(usb_wwan_port_probe); int usb_wwan_port_remove(struct usb_serial_port *port) { -- cgit v0.10.2 From 7e41f9bcdd2e813ea2a3c40db291d87ea06b559f Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:17 +0200 Subject: USB: sierra: fix memory leak in attach error path Make sure port private data is deallocated on errors in attach. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index 76ef95b..2cb27e4 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -905,7 +905,7 @@ static int sierra_startup(struct usb_serial *serial) dev_dbg(&port->dev, "%s: kmalloc for " "sierra_port_private (%d) failed!\n", __func__, i); - return -ENOMEM; + goto err; } spin_lock_init(&portdata->lock); init_usb_anchor(&portdata->active); @@ -942,6 +942,13 @@ static int sierra_startup(struct usb_serial *serial) } return 0; +err: + for (--i; i >= 0; --i) { + portdata = usb_get_serial_port_data(serial->port[i]); + kfree(portdata); + } + + return -ENOMEM; } static void sierra_release(struct usb_serial *serial) -- cgit v0.10.2 From 084817d79399ab5ccab2f90a148b0369912a8369 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:18 +0200 Subject: USB: sierra: fix memory leak in probe error path Move interface data allocation to attach so that it is deallocated on errors in usb-serial probe. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index 2cb27e4..bb2ecaf 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -161,7 +161,6 @@ static int sierra_probe(struct usb_serial *serial, { int result = 0; struct usb_device *udev; - struct sierra_intf_private *data; u8 ifnum; udev = serial->dev; @@ -188,11 +187,6 @@ static int sierra_probe(struct usb_serial *serial, return -ENODEV; } - data = serial->private = kzalloc(sizeof(struct sierra_intf_private), GFP_KERNEL); - if (!data) - return -ENOMEM; - spin_lock_init(&data->susp_lock); - return result; } @@ -885,11 +879,20 @@ static void sierra_dtr_rts(struct usb_serial_port *port, int on) static int sierra_startup(struct usb_serial *serial) { struct usb_serial_port *port; + struct sierra_intf_private *intfdata; struct sierra_port_private *portdata; struct sierra_iface_info *himemoryp = NULL; int i; u8 ifnum; + intfdata = kzalloc(sizeof(*intfdata), GFP_KERNEL); + if (!intfdata) + return -ENOMEM; + + spin_lock_init(&intfdata->susp_lock); + + usb_set_serial_data(serial, intfdata); + /* Set Device mode to D0 */ sierra_set_power_state(serial->dev, 0x0000); @@ -947,6 +950,7 @@ err: portdata = usb_get_serial_port_data(serial->port[i]); kfree(portdata); } + kfree(intfdata); return -ENOMEM; } -- cgit v0.10.2 From f525c05babc7938cc1d4236550fd8a659fb05960 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 10:29:19 +0200 Subject: USB: sierra: fix port-data memory leak Fix port-data memory leak by moving port data allocation and deallocation to port_probe and port_remove. Since commit 0998d0631001288 (device-core: Ensure drvdata = NULL when no driver is bound) the port private data is no longer freed at release as it is no longer accessible. Note also that urb-count for multi-port interfaces has not been changed even though the usb-serial port number is now determined from the port and interface minor numbers. Compile-only tested. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index bb2ecaf..270860f 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -878,12 +878,7 @@ static void sierra_dtr_rts(struct usb_serial_port *port, int on) static int sierra_startup(struct usb_serial *serial) { - struct usb_serial_port *port; struct sierra_intf_private *intfdata; - struct sierra_port_private *portdata; - struct sierra_iface_info *himemoryp = NULL; - int i; - u8 ifnum; intfdata = kzalloc(sizeof(*intfdata), GFP_KERNEL); if (!intfdata) @@ -900,77 +895,71 @@ static int sierra_startup(struct usb_serial *serial) if (nmea) sierra_vsc_set_nmea(serial->dev, 1); - /* Now setup per port private data */ - for (i = 0; i < serial->num_ports; i++) { - port = serial->port[i]; - portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); - if (!portdata) { - dev_dbg(&port->dev, "%s: kmalloc for " - "sierra_port_private (%d) failed!\n", - __func__, i); - goto err; - } - spin_lock_init(&portdata->lock); - init_usb_anchor(&portdata->active); - init_usb_anchor(&portdata->delayed); - ifnum = i; - /* Assume low memory requirements */ - portdata->num_out_urbs = N_OUT_URB; - portdata->num_in_urbs = N_IN_URB; - - /* Determine actual memory requirements */ - if (serial->num_ports == 1) { - /* Get interface number for composite device */ - ifnum = sierra_calc_interface(serial); - himemoryp = - (struct sierra_iface_info *)&typeB_interface_list; - if (is_himemory(ifnum, himemoryp)) { - portdata->num_out_urbs = N_OUT_URB_HM; - portdata->num_in_urbs = N_IN_URB_HM; - } - } - else { - himemoryp = - (struct sierra_iface_info *)&typeA_interface_list; - if (is_himemory(i, himemoryp)) { - portdata->num_out_urbs = N_OUT_URB_HM; - portdata->num_in_urbs = N_IN_URB_HM; - } - } - dev_dbg(&serial->dev->dev, - "Memory usage (urbs) interface #%d, in=%d, out=%d\n", - ifnum,portdata->num_in_urbs, portdata->num_out_urbs ); - /* Set the port private data pointer */ - usb_set_serial_port_data(port, portdata); + return 0; +} + +static void sierra_release(struct usb_serial *serial) +{ + struct sierra_intf_private *intfdata; + + intfdata = usb_get_serial_data(serial); + kfree(intfdata); +} + +static int sierra_port_probe(struct usb_serial_port *port) +{ + struct usb_serial *serial = port->serial; + struct sierra_port_private *portdata; + const struct sierra_iface_info *himemoryp; + u8 ifnum; + + portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); + if (!portdata) + return -ENOMEM; + + spin_lock_init(&portdata->lock); + init_usb_anchor(&portdata->active); + init_usb_anchor(&portdata->delayed); + + /* Assume low memory requirements */ + portdata->num_out_urbs = N_OUT_URB; + portdata->num_in_urbs = N_IN_URB; + + /* Determine actual memory requirements */ + if (serial->num_ports == 1) { + /* Get interface number for composite device */ + ifnum = sierra_calc_interface(serial); + himemoryp = &typeB_interface_list; + } else { + /* This is really the usb-serial port number of the interface + * rather than the interface number. + */ + ifnum = port->number - serial->minor; + himemoryp = &typeA_interface_list; } - return 0; -err: - for (--i; i >= 0; --i) { - portdata = usb_get_serial_port_data(serial->port[i]); - kfree(portdata); + if (is_himemory(ifnum, himemoryp)) { + portdata->num_out_urbs = N_OUT_URB_HM; + portdata->num_in_urbs = N_IN_URB_HM; } - kfree(intfdata); - return -ENOMEM; + dev_dbg(&port->dev, + "Memory usage (urbs) interface #%d, in=%d, out=%d\n", + ifnum, portdata->num_in_urbs, portdata->num_out_urbs); + + usb_set_serial_port_data(port, portdata); + + return 0; } -static void sierra_release(struct usb_serial *serial) +static int sierra_port_remove(struct usb_serial_port *port) { - int i; - struct usb_serial_port *port; struct sierra_port_private *portdata; - for (i = 0; i < serial->num_ports; ++i) { - port = serial->port[i]; - if (!port) - continue; - portdata = usb_get_serial_port_data(port); - if (!portdata) - continue; - kfree(portdata); - } - kfree(serial->private); + portdata = usb_get_serial_port_data(port); + kfree(portdata); + + return 0; } #ifdef CONFIG_PM @@ -1074,6 +1063,8 @@ static struct usb_serial_driver sierra_device = { .tiocmset = sierra_tiocmset, .attach = sierra_startup, .release = sierra_release, + .port_probe = sierra_port_probe, + .port_remove = sierra_port_remove, .suspend = sierra_suspend, .resume = sierra_resume, .read_int_callback = sierra_instat_callback, -- cgit v0.10.2 From 65a4cdbb170e4ec1a7fa0e94936d47e24a17b0e8 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 13:35:09 +0200 Subject: USB: mos7840: fix urb leak at release Make sure control urb is freed at release. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index d6d4eec..35ad3f5 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -2645,6 +2645,7 @@ static void mos7840_release(struct usb_serial *serial) del_timer_sync(&mos7840_port->led_timer1); del_timer_sync(&mos7840_port->led_timer2); } + usb_free_urb(mos7840_port->control_urb); kfree(mos7840_port->ctrl_buf); kfree(mos7840_port->dr); kfree(mos7840_port); -- cgit v0.10.2 From 3eb55cc4ed88eee3b5230f66abcdbd2a91639eda Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 13:35:10 +0200 Subject: USB: mos7840: fix port-device leak in error path The driver set the usb-serial port pointers to NULL on errors in attach, effectively preventing usb-serial core from decrementing the port ref counters and releasing the port devices and associated data. Cc: Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 35ad3f5..c5e5a6c 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -2587,7 +2587,6 @@ error: kfree(mos7840_port->ctrl_buf); usb_free_urb(mos7840_port->control_urb); kfree(mos7840_port); - serial->port[i] = NULL; } return status; } -- cgit v0.10.2 From a997448c89905b80aa4022f734f03685e733d711 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 15:42:39 +0200 Subject: USB: ipw: fix interface-data memory leak in error path Move interface data allocation to attach so that it is deallocated should usb-serial probe fail. Signed-off-by: Johan Hovold Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c index add45b7..4264821 100644 --- a/drivers/usb/serial/ipw.c +++ b/drivers/usb/serial/ipw.c @@ -203,8 +203,7 @@ static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port) return 0; } -/* fake probe - only to allocate data structures */ -static int ipw_probe(struct usb_serial *serial, const struct usb_device_id *id) +static int ipw_attach(struct usb_serial *serial) { struct usb_wwan_intf_private *data; @@ -303,7 +302,7 @@ static struct usb_serial_driver ipw_device = { .num_ports = 1, .open = ipw_open, .close = ipw_close, - .probe = ipw_probe, + .attach = ipw_attach, .release = ipw_release, .port_probe = usb_wwan_port_probe, .port_remove = usb_wwan_port_remove, -- cgit v0.10.2 From c2dd4a8eac7821fed2c2d19e4607d0986b53b0fe Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 15:42:40 +0200 Subject: USB: option: fix interface-data memory leak in error path Move interface data allocation to attach so that it is deallocated should usb-serial probe fail. Note that the usb device id is stored at probe so that it can be used in attach to determine send-setup blacklisting. Signed-off-by: Johan Hovold Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index eb4bdd4..5dee7d6 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -47,6 +47,7 @@ /* Function prototypes */ static int option_probe(struct usb_serial *serial, const struct usb_device_id *id); +static int option_attach(struct usb_serial *serial); static void option_release(struct usb_serial *serial); static int option_send_setup(struct usb_serial_port *port); static void option_instat_callback(struct urb *urb); @@ -1288,6 +1289,7 @@ static struct usb_serial_driver option_1port_device = { .tiocmget = usb_wwan_tiocmget, .tiocmset = usb_wwan_tiocmset, .ioctl = usb_wwan_ioctl, + .attach = option_attach, .release = option_release, .port_probe = usb_wwan_port_probe, .port_remove = usb_wwan_port_remove, @@ -1335,8 +1337,6 @@ static bool is_blacklisted(const u8 ifnum, enum option_blacklist_reason reason, static int option_probe(struct usb_serial *serial, const struct usb_device_id *id) { - struct usb_wwan_intf_private *data; - struct option_private *priv; struct usb_interface_descriptor *iface_desc = &serial->interface->cur_altsetting->desc; struct usb_device_descriptor *dev_desc = &serial->dev->descriptor; @@ -1374,6 +1374,19 @@ static int option_probe(struct usb_serial *serial, iface_desc->bInterfaceClass != USB_CLASS_CDC_DATA) return -ENODEV; + /* Store device id so we can use it during attach. */ + usb_set_serial_data(serial, (void *)id); + + return 0; +} + +static int option_attach(struct usb_serial *serial) +{ + struct usb_interface_descriptor *iface_desc; + const struct usb_device_id *id; + struct usb_wwan_intf_private *data; + struct option_private *priv; + data = kzalloc(sizeof(struct usb_wwan_intf_private), GFP_KERNEL); if (!data) return -ENOMEM; @@ -1384,6 +1397,10 @@ static int option_probe(struct usb_serial *serial, return -ENOMEM; } + /* Retrieve device id stored at probe. */ + id = usb_get_serial_data(serial); + iface_desc = &serial->interface->cur_altsetting->desc; + priv->bInterfaceNumber = iface_desc->bInterfaceNumber; data->private = priv; -- cgit v0.10.2 From 961be09e1ead58509ed4bed0d5819a15d8613d8d Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 15:42:41 +0200 Subject: USB: qcserial: fix interface-data memory leak in error path Move interface data allocation to attach so that it is deallocated should usb-serial probe fail. Signed-off-by: Johan Hovold Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c index 8dd2280..aa148c2 100644 --- a/drivers/usb/serial/qcserial.c +++ b/drivers/usb/serial/qcserial.c @@ -138,7 +138,6 @@ MODULE_DEVICE_TABLE(usb, id_table); static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) { - struct usb_wwan_intf_private *data; struct usb_host_interface *intf = serial->interface->cur_altsetting; struct device *dev = &serial->dev->dev; int retval = -ENODEV; @@ -154,13 +153,6 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) ifnum = intf->desc.bInterfaceNumber; dev_dbg(dev, "This Interface = %d\n", ifnum); - data = kzalloc(sizeof(struct usb_wwan_intf_private), - GFP_KERNEL); - if (!data) - return -ENOMEM; - - spin_lock_init(&data->susp_lock); - if (nintf == 1) { /* QDL mode */ /* Gobi 2000 has a single altsetting, older ones have two */ @@ -253,20 +245,28 @@ done: } } - /* Set serial->private if not returning error */ - if (retval == 0) - usb_set_serial_data(serial, data); - else - kfree(data); - return retval; } +static int qc_attach(struct usb_serial *serial) +{ + struct usb_wwan_intf_private *data; + + data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + spin_lock_init(&data->susp_lock); + + usb_set_serial_data(serial, data); + + return 0; +} + static void qc_release(struct usb_serial *serial) { struct usb_wwan_intf_private *priv = usb_get_serial_data(serial); - /* Free the private data allocated in qcprobe */ usb_set_serial_data(serial, NULL); kfree(priv); } @@ -285,6 +285,7 @@ static struct usb_serial_driver qcdevice = { .write = usb_wwan_write, .write_room = usb_wwan_write_room, .chars_in_buffer = usb_wwan_chars_in_buffer, + .attach = qc_attach, .release = qc_release, .port_probe = usb_wwan_port_probe, .port_remove = usb_wwan_port_remove, -- cgit v0.10.2 From 41fd087f5d452361d58cb618b1b8ecf749b68ad6 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Fri, 19 Oct 2012 08:24:18 -0300 Subject: [media] s5p-fimc: Don't ignore return value of vb2_queue_init() Add missing checks for return value of vb2_queue_init(), after this function has been modified recently to not throw BUG_ON(). This eliminates related compiler warnings, drivers/media/platform/s5p-fimc/fimc-lite.c: In function fimc_lite_subdev_registered: drivers/media/platform/s5p-fimc/fimc-lite.c:1256:16: warning: ignoring return value of vb2_queue_init, declared with attribute warn_unused_result [-Wunused-result] drivers/media/platform/s5p-fimc/fimc-capture.c: In function fimc_register_capture_device: drivers/media/platform/s5p-fimc/fimc-capture.c:1739:16: warning: ignoring return value of vb2_queue_init, declared with attribute warn_unused_result [-Wunused-result] Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/s5p-fimc/fimc-capture.c b/drivers/media/platform/s5p-fimc/fimc-capture.c index 367efd1..3d39d97 100644 --- a/drivers/media/platform/s5p-fimc/fimc-capture.c +++ b/drivers/media/platform/s5p-fimc/fimc-capture.c @@ -1736,7 +1736,9 @@ static int fimc_register_capture_device(struct fimc_dev *fimc, q->mem_ops = &vb2_dma_contig_memops; q->buf_struct_size = sizeof(struct fimc_vid_buffer); - vb2_queue_init(q); + ret = vb2_queue_init(q); + if (ret) + goto err_ent; vid_cap->vd_pad.flags = MEDIA_PAD_FL_SINK; ret = media_entity_init(&vfd->entity, 1, &vid_cap->vd_pad, 0); diff --git a/drivers/media/platform/s5p-fimc/fimc-lite.c b/drivers/media/platform/s5p-fimc/fimc-lite.c index 70bcf39..9db246b 100644 --- a/drivers/media/platform/s5p-fimc/fimc-lite.c +++ b/drivers/media/platform/s5p-fimc/fimc-lite.c @@ -1253,7 +1253,9 @@ static int fimc_lite_subdev_registered(struct v4l2_subdev *sd) q->buf_struct_size = sizeof(struct flite_buffer); q->drv_priv = fimc; - vb2_queue_init(q); + ret = vb2_queue_init(q); + if (ret < 0) + return ret; fimc->vd_pad.flags = MEDIA_PAD_FL_SINK; ret = media_entity_init(&vfd->entity, 1, &fimc->vd_pad, 0); -- cgit v0.10.2 From 02924ca45893adb9ad2383696006272fe8c2ef64 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Mon, 22 Oct 2012 06:12:05 -0300 Subject: [media] s5p-csis: Select S5P_SETUP_MIPIPHY After commit ccbfd1d49dc0d6a "[media] s5p-csis: Replace phy_enable platform.." s5p-csis depends now on the commmon MIPI CSIS/MIPI DSIM DPHY control code. Add select S5P_SETUP_MIPIPHY to make this dependency explicit, until the code from arch/arm/plat-samsung is moved to drivers/ directory and converted to a regular phy driver module. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/s5p-fimc/Kconfig b/drivers/media/platform/s5p-fimc/Kconfig index 8f090a8..c16b20d 100644 --- a/drivers/media/platform/s5p-fimc/Kconfig +++ b/drivers/media/platform/s5p-fimc/Kconfig @@ -24,6 +24,7 @@ config VIDEO_S5P_FIMC config VIDEO_S5P_MIPI_CSIS tristate "S5P/EXYNOS MIPI-CSI2 receiver (MIPI-CSIS) driver" depends on REGULATOR + select S5P_SETUP_MIPIPHY help This is a V4L2 driver for Samsung S5P and EXYNOS4 SoC MIPI-CSI2 receiver (MIPI-CSIS) devices. -- cgit v0.10.2 From afd7348c60b4f5d3d4d041aa0c29a6258a476b89 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 25 Oct 2012 10:48:44 -0300 Subject: [media] s5p-fimc: Fix platform entities registration Make sure the platform sub-devices are registered to the media device driver only when v4l2_device_register_subdev() succeeds. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/s5p-fimc/fimc-mdevice.c b/drivers/media/platform/s5p-fimc/fimc-mdevice.c index 80ada58..a553702 100644 --- a/drivers/media/platform/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/platform/s5p-fimc/fimc-mdevice.c @@ -345,25 +345,23 @@ static int fimc_register_callback(struct device *dev, void *p) struct fimc_dev *fimc = dev_get_drvdata(dev); struct v4l2_subdev *sd = &fimc->vid_cap.subdev; struct fimc_md *fmd = p; - int ret = 0; - - if (!fimc || !fimc->pdev) - return 0; + int ret; - if (fimc->pdev->id < 0 || fimc->pdev->id >= FIMC_MAX_DEVS) + if (fimc == NULL || fimc->id >= FIMC_MAX_DEVS) return 0; - fimc->pipeline_ops = &fimc_pipeline_ops; - fmd->fimc[fimc->pdev->id] = fimc; sd->grp_id = FIMC_GROUP_ID; ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); if (ret) { v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.%d (%d)\n", fimc->id, ret); + return ret; } - return ret; + fimc->pipeline_ops = &fimc_pipeline_ops; + fmd->fimc[fimc->id] = fimc; + return 0; } static int fimc_lite_register_callback(struct device *dev, void *p) @@ -373,14 +371,9 @@ static int fimc_lite_register_callback(struct device *dev, void *p) struct fimc_md *fmd = p; int ret; - if (fimc == NULL) + if (fimc == NULL || fimc->index >= FIMC_LITE_MAX_DEVS) return 0; - if (fimc->index >= FIMC_LITE_MAX_DEVS) - return 0; - - fimc->pipeline_ops = &fimc_pipeline_ops; - fmd->fimc_lite[fimc->index] = fimc; sd->grp_id = FLITE_GROUP_ID; ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); @@ -388,8 +381,12 @@ static int fimc_lite_register_callback(struct device *dev, void *p) v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC-LITE.%d (%d)\n", fimc->index, ret); + return ret; } - return ret; + + fimc->pipeline_ops = &fimc_pipeline_ops; + fmd->fimc_lite[fimc->index] = fimc; + return 0; } static int csis_register_callback(struct device *dev, void *p) @@ -407,10 +404,12 @@ static int csis_register_callback(struct device *dev, void *p) v4l2_info(sd, "csis%d sd: %s\n", pdev->id, sd->name); id = pdev->id < 0 ? 0 : pdev->id; - fmd->csis[id].sd = sd; sd->grp_id = CSIS_GROUP_ID; + ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); - if (ret) + if (!ret) + fmd->csis[id].sd = sd; + else v4l2_err(&fmd->v4l2_dev, "Failed to register CSIS subdevice: %d\n", ret); return ret; -- cgit v0.10.2 From 8163ec0b2648c2f7e84edb969dde537ec45f1666 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Thu, 25 Oct 2012 10:56:00 -0300 Subject: [media] s5p-fimc: Fix potential NULL pointer dereference 'fimc' was being dereferenced before the NULL check. Moved it to after the check. Signed-off-by: Sachin Kamat Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/s5p-fimc/fimc-mdevice.c b/drivers/media/platform/s5p-fimc/fimc-mdevice.c index a553702..38ea4d1 100644 --- a/drivers/media/platform/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/platform/s5p-fimc/fimc-mdevice.c @@ -343,13 +343,14 @@ static int fimc_md_register_sensor_entities(struct fimc_md *fmd) static int fimc_register_callback(struct device *dev, void *p) { struct fimc_dev *fimc = dev_get_drvdata(dev); - struct v4l2_subdev *sd = &fimc->vid_cap.subdev; + struct v4l2_subdev *sd; struct fimc_md *fmd = p; int ret; if (fimc == NULL || fimc->id >= FIMC_MAX_DEVS) return 0; + sd = &fimc->vid_cap.subdev; sd->grp_id = FIMC_GROUP_ID; ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); @@ -367,16 +368,15 @@ static int fimc_register_callback(struct device *dev, void *p) static int fimc_lite_register_callback(struct device *dev, void *p) { struct fimc_lite *fimc = dev_get_drvdata(dev); - struct v4l2_subdev *sd = &fimc->subdev; struct fimc_md *fmd = p; int ret; if (fimc == NULL || fimc->index >= FIMC_LITE_MAX_DEVS) return 0; - sd->grp_id = FLITE_GROUP_ID; + fimc->subdev.grp_id = FLITE_GROUP_ID; - ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); + ret = v4l2_device_register_subdev(&fmd->v4l2_dev, &fimc->subdev); if (ret) { v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC-LITE.%d (%d)\n", -- cgit v0.10.2 From 43993e4af02ec99908d6d99176773fc2a3ee4c57 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Thu, 25 Oct 2012 10:30:34 -0700 Subject: ARM: OMAP2+: PM: add missing newline to VC warning message Add missing newline to warning message to avoid annoying wrapping problems during kernel boot like this one: omap_vc_i2c_init: I2C config for vdd_iva does not match other channels (0). omap_vc_i2c_init: I2C config for vdd_mpu does not match other channels (0).Power Management for TI OMAP4. Reported-by: Russell King Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c index 880249b..75878c3 100644 --- a/arch/arm/mach-omap2/vc.c +++ b/arch/arm/mach-omap2/vc.c @@ -264,7 +264,7 @@ static void __init omap_vc_i2c_init(struct voltagedomain *voltdm) if (initialized) { if (voltdm->pmic->i2c_high_speed != i2c_high_speed) - pr_warn("%s: I2C config for vdd_%s does not match other channels (%u).", + pr_warn("%s: I2C config for vdd_%s does not match other channels (%u).\n", __func__, voltdm->name, i2c_high_speed); return; } -- cgit v0.10.2 From 5189c2a7c7769ee9d037d76c1a7b8550ccf3481c Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Wed, 24 Oct 2012 10:00:44 -0700 Subject: x86: efi: Turn off efi_enabled after setup on mixed fw/kernel When 32-bit EFI is used with 64-bit kernel (or vice versa), turn off efi_enabled once setup is done. Beyond setup, it is normally used to determine if runtime services are available and we will have none. This will resolve issues stemming from efivars modprobe panicking on a 32/64-bit setup, as well as some reboot issues on similar setups. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=45991 Reported-by: Marko Kohtala Reported-by: Maxim Kammerer Signed-off-by: Olof Johansson Acked-by: Maarten Lankhorst Cc: stable@kernel.org # 3.4 - 3.6 Cc: Matthew Garrett Signed-off-by: Matt Fleming diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index c9dcc18..029189d 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -98,6 +98,7 @@ extern void efi_set_executable(efi_memory_desc_t *md, bool executable); extern int efi_memblock_x86_reserve_range(void); extern void efi_call_phys_prelog(void); extern void efi_call_phys_epilog(void); +extern void efi_unmap_memmap(void); #ifndef CONFIG_EFI /* diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index a2bb18e..6fd7752 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1035,6 +1035,18 @@ void __init setup_arch(char **cmdline_p) arch_init_ideal_nops(); register_refined_jiffies(CLOCK_TICK_RATE); + +#ifdef CONFIG_EFI + /* Once setup is done above, disable efi_enabled on mismatched + * firmware/kernel archtectures since there is no support for + * runtime services. + */ + if (efi_enabled && IS_ENABLED(CONFIG_X86_64) != efi_64bit) { + pr_info("efi: Setup done, disabling due to 32/64-bit mismatch\n"); + efi_unmap_memmap(); + efi_enabled = 0; + } +#endif } #ifdef CONFIG_X86_32 diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index aded2a9..9bae3b7 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -70,11 +70,15 @@ EXPORT_SYMBOL(efi); struct efi_memory_map memmap; bool efi_64bit; -static bool efi_native; static struct efi efi_phys __initdata; static efi_system_table_t efi_systab __initdata; +static inline bool efi_is_native(void) +{ + return IS_ENABLED(CONFIG_X86_64) == efi_64bit; +} + static int __init setup_noefi(char *arg) { efi_enabled = 0; @@ -420,7 +424,7 @@ void __init efi_reserve_boot_services(void) } } -static void __init efi_unmap_memmap(void) +void __init efi_unmap_memmap(void) { if (memmap.map) { early_iounmap(memmap.map, memmap.nr_map * memmap.desc_size); @@ -432,7 +436,7 @@ void __init efi_free_boot_services(void) { void *p; - if (!efi_native) + if (!efi_is_native()) return; for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { @@ -684,12 +688,10 @@ void __init efi_init(void) return; } efi_phys.systab = (efi_system_table_t *)boot_params.efi_info.efi_systab; - efi_native = !efi_64bit; #else efi_phys.systab = (efi_system_table_t *) (boot_params.efi_info.efi_systab | ((__u64)boot_params.efi_info.efi_systab_hi<<32)); - efi_native = efi_64bit; #endif if (efi_systab_init(efi_phys.systab)) { @@ -723,7 +725,7 @@ void __init efi_init(void) * that doesn't match the kernel 32/64-bit mode. */ - if (!efi_native) + if (!efi_is_native()) pr_info("No EFI runtime due to 32/64-bit mismatch with kernel\n"); else if (efi_runtime_init()) { efi_enabled = 0; @@ -735,7 +737,7 @@ void __init efi_init(void) return; } #ifdef CONFIG_X86_32 - if (efi_native) { + if (efi_is_native()) { x86_platform.get_wallclock = efi_get_time; x86_platform.set_wallclock = efi_set_rtc_mmss; } @@ -834,7 +836,7 @@ void __init efi_enter_virtual_mode(void) * non-native EFI */ - if (!efi_native) { + if (!efi_is_native()) { efi_unmap_memmap(); return; } -- cgit v0.10.2 From 28c3ae9a8cf45f439c9a0779ebd0256e2ae72813 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 18:56:32 +0200 Subject: USB: mos7840: remove NULL-urb submission The private int_urb is never allocated so the submission from the control completion handler will always fail. Remove this odd piece of broken code. Signed-off-by: Johan Hovold Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index c5e5a6c..f2c4bb7 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -218,7 +218,6 @@ struct moschip_port { int port_num; /*Actual port number in the device(1,2,etc) */ struct urb *write_urb; /* write URB for this port */ struct urb *read_urb; /* read URB for this port */ - struct urb *int_urb; __u8 shadowLCR; /* last LCR value received */ __u8 shadowMCR; /* last MCR value received */ char open; @@ -478,7 +477,6 @@ static void mos7840_control_callback(struct urb *urb) struct moschip_port *mos7840_port; struct device *dev = &urb->dev->dev; __u8 regval = 0x0; - int result = 0; int status = urb->status; mos7840_port = urb->context; @@ -495,7 +493,7 @@ static void mos7840_control_callback(struct urb *urb) return; default: dev_dbg(dev, "%s - nonzero urb status received: %d\n", __func__, status); - goto exit; + return; } dev_dbg(dev, "%s urb buffer size is %d\n", __func__, urb->actual_length); @@ -508,16 +506,6 @@ static void mos7840_control_callback(struct urb *urb) mos7840_handle_new_msr(mos7840_port, regval); else if (mos7840_port->MsrLsr == 1) mos7840_handle_new_lsr(mos7840_port, regval); - -exit: - spin_lock(&mos7840_port->pool_lock); - if (!mos7840_port->zombie) - result = usb_submit_urb(mos7840_port->int_urb, GFP_ATOMIC); - spin_unlock(&mos7840_port->pool_lock); - if (result) { - dev_err(dev, "%s - Error %d submitting interrupt urb\n", - __func__, result); - } } static int mos7840_get_reg(struct moschip_port *mcs, __u16 Wval, __u16 reg, -- cgit v0.10.2 From e681b66f2e19fadbe8a7e2a17900978cb6bc921f Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 18:56:33 +0200 Subject: USB: mos7840: remove invalid disconnect handling Remove private zombie flag used to signal disconnect and to prevent control urb from being submitted from interrupt urb completion handler. The control urb will not be re-submitted as both the control urb and the interrupt urb is killed on disconnect. Signed-off-by: Johan Hovold Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index f2c4bb7..84f8c10 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -222,7 +222,6 @@ struct moschip_port { __u8 shadowMCR; /* last MCR value received */ char open; char open_ports; - char zombie; wait_queue_head_t wait_chase; /* for handling sleeping while waiting for chase to finish */ wait_queue_head_t delta_msr_wait; /* for handling sleeping while waiting for msr change to happen */ int delta_msr_cond; @@ -674,14 +673,7 @@ static void mos7840_interrupt_callback(struct urb *urb) wreg = MODEM_STATUS_REGISTER; break; } - spin_lock(&mos7840_port->pool_lock); - if (!mos7840_port->zombie) { - rv = mos7840_get_reg(mos7840_port, wval, wreg, &Data); - } else { - spin_unlock(&mos7840_port->pool_lock); - return; - } - spin_unlock(&mos7840_port->pool_lock); + rv = mos7840_get_reg(mos7840_port, wval, wreg, &Data); } } } @@ -2598,9 +2590,6 @@ static void mos7840_disconnect(struct usb_serial *serial) for (i = 0; i < serial->num_ports; ++i) { mos7840_port = mos7840_get_port_private(serial->port[i]); if (mos7840_port) { - spin_lock_irqsave(&mos7840_port->pool_lock, flags); - mos7840_port->zombie = 1; - spin_unlock_irqrestore(&mos7840_port->pool_lock, flags); usb_kill_urb(mos7840_port->control_urb); } } -- cgit v0.10.2 From 80c00750f0c9867a65b30a17880939b6bc660a77 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 18:56:34 +0200 Subject: USB: mos7840: fix port-data memory leak Fix port-data memory leak by moving port data allocation and deallocation to port_probe and port_remove. Since commit 0998d0631001288 (device-core: Ensure drvdata = NULL when no driver is bound) the port private data is no longer freed at release as it is no longer accessible. Note that the indentation was kept intact using a do-while(0) in order to facilitate review. A follow-up patch will remove it. Compile-only tested. Signed-off-by: Johan Hovold Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 84f8c10..bc3df86 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -2327,49 +2327,45 @@ static int mos7840_calc_num_ports(struct usb_serial *serial) return mos7840_num_ports; } -/**************************************************************************** - * mos7840_startup - ****************************************************************************/ - -static int mos7840_startup(struct usb_serial *serial) +static int mos7840_port_probe(struct usb_serial_port *port) { + struct usb_serial *serial = port->serial; struct moschip_port *mos7840_port; - struct usb_device *dev; - int i, status; + int status; + int pnum; __u16 Data; - dev = serial->dev; - /* we set up the pointers to the endpoints in the mos7840_open * * function, as the structures aren't created yet. */ - /* set up port private structures */ - for (i = 0; i < serial->num_ports; ++i) { - dev_dbg(&dev->dev, "mos7840_startup: configuring port %d............\n", i); + pnum = port->number - serial->minor; + + /* FIXME: remove do-while(0) loop used to keep stable patch minimal. + */ + do { + dev_dbg(&port->dev, "mos7840_startup: configuring port %d............\n", pnum); mos7840_port = kzalloc(sizeof(struct moschip_port), GFP_KERNEL); if (mos7840_port == NULL) { - dev_err(&dev->dev, "%s - Out of memory\n", __func__); - status = -ENOMEM; - i--; /* don't follow NULL pointer cleaning up */ - goto error; + dev_err(&port->dev, "%s - Out of memory\n", __func__); + return -ENOMEM; } /* Initialize all port interrupt end point to port 0 int * endpoint. Our device has only one interrupt end point * common to all port */ - mos7840_port->port = serial->port[i]; - mos7840_set_port_private(serial->port[i], mos7840_port); + mos7840_port->port = port; + mos7840_set_port_private(port, mos7840_port); spin_lock_init(&mos7840_port->pool_lock); /* minor is not initialised until later by * usb-serial.c:get_free_serial() and cannot therefore be used * to index device instances */ - mos7840_port->port_num = i + 1; - dev_dbg(&dev->dev, "serial->port[i]->number = %d\n", serial->port[i]->number); - dev_dbg(&dev->dev, "serial->port[i]->serial->minor = %d\n", serial->port[i]->serial->minor); - dev_dbg(&dev->dev, "mos7840_port->port_num = %d\n", mos7840_port->port_num); - dev_dbg(&dev->dev, "serial->minor = %d\n", serial->minor); + mos7840_port->port_num = pnum + 1; + dev_dbg(&port->dev, "port->number = %d\n", port->number); + dev_dbg(&port->dev, "port->serial->minor = %d\n", port->serial->minor); + dev_dbg(&port->dev, "mos7840_port->port_num = %d\n", mos7840_port->port_num); + dev_dbg(&port->dev, "serial->minor = %d\n", serial->minor); if (mos7840_port->port_num == 1) { mos7840_port->SpRegOffset = 0x0; @@ -2396,115 +2392,115 @@ static int mos7840_startup(struct usb_serial *serial) mos7840_port->ControlRegOffset = 0xd; mos7840_port->DcrRegOffset = 0x1c; } - mos7840_dump_serial_port(serial->port[i], mos7840_port); - mos7840_set_port_private(serial->port[i], mos7840_port); + mos7840_dump_serial_port(port, mos7840_port); + mos7840_set_port_private(port, mos7840_port); /* enable rx_disable bit in control register */ - status = mos7840_get_reg_sync(serial->port[i], + status = mos7840_get_reg_sync(port, mos7840_port->ControlRegOffset, &Data); if (status < 0) { - dev_dbg(&dev->dev, "Reading ControlReg failed status-0x%x\n", status); + dev_dbg(&port->dev, "Reading ControlReg failed status-0x%x\n", status); break; } else - dev_dbg(&dev->dev, "ControlReg Reading success val is %x, status%d\n", Data, status); + dev_dbg(&port->dev, "ControlReg Reading success val is %x, status%d\n", Data, status); Data |= 0x08; /* setting driver done bit */ Data |= 0x04; /* sp1_bit to have cts change reflect in modem status reg */ /* Data |= 0x20; //rx_disable bit */ - status = mos7840_set_reg_sync(serial->port[i], + status = mos7840_set_reg_sync(port, mos7840_port->ControlRegOffset, Data); if (status < 0) { - dev_dbg(&dev->dev, "Writing ControlReg failed(rx_disable) status-0x%x\n", status); + dev_dbg(&port->dev, "Writing ControlReg failed(rx_disable) status-0x%x\n", status); break; } else - dev_dbg(&dev->dev, "ControlReg Writing success(rx_disable) status%d\n", status); + dev_dbg(&port->dev, "ControlReg Writing success(rx_disable) status%d\n", status); /* Write default values in DCR (i.e 0x01 in DCR0, 0x05 in DCR2 and 0x24 in DCR3 */ Data = 0x01; - status = mos7840_set_reg_sync(serial->port[i], + status = mos7840_set_reg_sync(port, (__u16) (mos7840_port->DcrRegOffset + 0), Data); if (status < 0) { - dev_dbg(&dev->dev, "Writing DCR0 failed status-0x%x\n", status); + dev_dbg(&port->dev, "Writing DCR0 failed status-0x%x\n", status); break; } else - dev_dbg(&dev->dev, "DCR0 Writing success status%d\n", status); + dev_dbg(&port->dev, "DCR0 Writing success status%d\n", status); Data = 0x05; - status = mos7840_set_reg_sync(serial->port[i], + status = mos7840_set_reg_sync(port, (__u16) (mos7840_port->DcrRegOffset + 1), Data); if (status < 0) { - dev_dbg(&dev->dev, "Writing DCR1 failed status-0x%x\n", status); + dev_dbg(&port->dev, "Writing DCR1 failed status-0x%x\n", status); break; } else - dev_dbg(&dev->dev, "DCR1 Writing success status%d\n", status); + dev_dbg(&port->dev, "DCR1 Writing success status%d\n", status); Data = 0x24; - status = mos7840_set_reg_sync(serial->port[i], + status = mos7840_set_reg_sync(port, (__u16) (mos7840_port->DcrRegOffset + 2), Data); if (status < 0) { - dev_dbg(&dev->dev, "Writing DCR2 failed status-0x%x\n", status); + dev_dbg(&port->dev, "Writing DCR2 failed status-0x%x\n", status); break; } else - dev_dbg(&dev->dev, "DCR2 Writing success status%d\n", status); + dev_dbg(&port->dev, "DCR2 Writing success status%d\n", status); /* write values in clkstart0x0 and clkmulti 0x20 */ Data = 0x0; - status = mos7840_set_reg_sync(serial->port[i], + status = mos7840_set_reg_sync(port, CLK_START_VALUE_REGISTER, Data); if (status < 0) { - dev_dbg(&dev->dev, "Writing CLK_START_VALUE_REGISTER failed status-0x%x\n", status); + dev_dbg(&port->dev, "Writing CLK_START_VALUE_REGISTER failed status-0x%x\n", status); break; } else - dev_dbg(&dev->dev, "CLK_START_VALUE_REGISTER Writing success status%d\n", status); + dev_dbg(&port->dev, "CLK_START_VALUE_REGISTER Writing success status%d\n", status); Data = 0x20; - status = mos7840_set_reg_sync(serial->port[i], + status = mos7840_set_reg_sync(port, CLK_MULTI_REGISTER, Data); if (status < 0) { - dev_dbg(&dev->dev, "Writing CLK_MULTI_REGISTER failed status-0x%x\n", status); + dev_dbg(&port->dev, "Writing CLK_MULTI_REGISTER failed status-0x%x\n", status); goto error; } else - dev_dbg(&dev->dev, "CLK_MULTI_REGISTER Writing success status%d\n", status); + dev_dbg(&port->dev, "CLK_MULTI_REGISTER Writing success status%d\n", status); /* write value 0x0 to scratchpad register */ Data = 0x00; - status = mos7840_set_uart_reg(serial->port[i], + status = mos7840_set_uart_reg(port, SCRATCH_PAD_REGISTER, Data); if (status < 0) { - dev_dbg(&dev->dev, "Writing SCRATCH_PAD_REGISTER failed status-0x%x\n", status); + dev_dbg(&port->dev, "Writing SCRATCH_PAD_REGISTER failed status-0x%x\n", status); break; } else - dev_dbg(&dev->dev, "SCRATCH_PAD_REGISTER Writing success status%d\n", status); + dev_dbg(&port->dev, "SCRATCH_PAD_REGISTER Writing success status%d\n", status); /* Zero Length flag register */ if ((mos7840_port->port_num != 1) && (serial->num_ports == 2)) { Data = 0xff; - status = mos7840_set_reg_sync(serial->port[i], + status = mos7840_set_reg_sync(port, (__u16) (ZLP_REG1 + ((__u16)mos7840_port->port_num)), Data); - dev_dbg(&dev->dev, "ZLIP offset %x\n", + dev_dbg(&port->dev, "ZLIP offset %x\n", (__u16)(ZLP_REG1 + ((__u16) mos7840_port->port_num))); if (status < 0) { - dev_dbg(&dev->dev, "Writing ZLP_REG%d failed status-0x%x\n", i + 2, status); + dev_dbg(&port->dev, "Writing ZLP_REG%d failed status-0x%x\n", pnum + 2, status); break; } else - dev_dbg(&dev->dev, "ZLP_REG%d Writing success status%d\n", i + 2, status); + dev_dbg(&port->dev, "ZLP_REG%d Writing success status%d\n", pnum + 2, status); } else { Data = 0xff; - status = mos7840_set_reg_sync(serial->port[i], + status = mos7840_set_reg_sync(port, (__u16) (ZLP_REG1 + ((__u16)mos7840_port->port_num) - 0x1), Data); - dev_dbg(&dev->dev, "ZLIP offset %x\n", + dev_dbg(&port->dev, "ZLIP offset %x\n", (__u16)(ZLP_REG1 + ((__u16) mos7840_port->port_num) - 0x1)); if (status < 0) { - dev_dbg(&dev->dev, "Writing ZLP_REG%d failed status-0x%x\n", i + 1, status); + dev_dbg(&port->dev, "Writing ZLP_REG%d failed status-0x%x\n", pnum + 1, status); break; } else - dev_dbg(&dev->dev, "ZLP_REG%d Writing success status%d\n", i + 1, status); + dev_dbg(&port->dev, "ZLP_REG%d Writing success status%d\n", pnum + 1, status); } mos7840_port->control_urb = usb_alloc_urb(0, GFP_KERNEL); @@ -2541,92 +2537,56 @@ static int mos7840_startup(struct usb_serial *serial) mos7840_port->led_flag = false; /* Turn off LED */ - mos7840_set_led_sync(serial->port[i], + mos7840_set_led_sync(port, MODEM_CONTROL_REGISTER, 0x0300); } - } + } while (0); - /* Zero Length flag enable */ - Data = 0x0f; - status = mos7840_set_reg_sync(serial->port[0], ZLP_REG5, Data); - if (status < 0) { - dev_dbg(&dev->dev, "Writing ZLP_REG5 failed status-0x%x\n", status); - goto error; - } else - dev_dbg(&dev->dev, "ZLP_REG5 Writing success status%d\n", status); - - /* setting configuration feature to one */ - usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), - (__u8) 0x03, 0x00, 0x01, 0x00, NULL, 0x00, MOS_WDR_TIMEOUT); + if (pnum == serial->num_ports - 1) { + /* Zero Length flag enable */ + Data = 0x0f; + status = mos7840_set_reg_sync(serial->port[0], ZLP_REG5, Data); + if (status < 0) { + dev_dbg(&port->dev, "Writing ZLP_REG5 failed status-0x%x\n", status); + goto error; + } else + dev_dbg(&port->dev, "ZLP_REG5 Writing success status%d\n", status); + + /* setting configuration feature to one */ + usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), + 0x03, 0x00, 0x01, 0x00, NULL, 0x00, + MOS_WDR_TIMEOUT); + } return 0; error: - for (/* nothing */; i >= 0; i--) { - mos7840_port = mos7840_get_port_private(serial->port[i]); + kfree(mos7840_port->dr); + kfree(mos7840_port->ctrl_buf); + usb_free_urb(mos7840_port->control_urb); + kfree(mos7840_port); - kfree(mos7840_port->dr); - kfree(mos7840_port->ctrl_buf); - usb_free_urb(mos7840_port->control_urb); - kfree(mos7840_port); - } return status; } -/**************************************************************************** - * mos7840_disconnect - * This function is called whenever the device is removed from the usb bus. - ****************************************************************************/ - -static void mos7840_disconnect(struct usb_serial *serial) +static int mos7840_port_remove(struct usb_serial_port *port) { - int i; - unsigned long flags; struct moschip_port *mos7840_port; - /* check for the ports to be closed,close the ports and disconnect */ + mos7840_port = mos7840_get_port_private(port); - /* free private structure allocated for serial port * - * stop reads and writes on all ports */ + if (mos7840_port->has_led) { + /* Turn off LED */ + mos7840_set_led_sync(port, MODEM_CONTROL_REGISTER, 0x0300); - for (i = 0; i < serial->num_ports; ++i) { - mos7840_port = mos7840_get_port_private(serial->port[i]); - if (mos7840_port) { - usb_kill_urb(mos7840_port->control_urb); - } + del_timer_sync(&mos7840_port->led_timer1); + del_timer_sync(&mos7840_port->led_timer2); } -} - -/**************************************************************************** - * mos7840_release - * This function is called when the usb_serial structure is freed. - ****************************************************************************/ - -static void mos7840_release(struct usb_serial *serial) -{ - int i; - struct moschip_port *mos7840_port; + usb_kill_urb(mos7840_port->control_urb); + usb_free_urb(mos7840_port->control_urb); + kfree(mos7840_port->ctrl_buf); + kfree(mos7840_port->dr); + kfree(mos7840_port); - /* check for the ports to be closed,close the ports and disconnect */ - - /* free private structure allocated for serial port * - * stop reads and writes on all ports */ - - for (i = 0; i < serial->num_ports; ++i) { - mos7840_port = mos7840_get_port_private(serial->port[i]); - if (mos7840_port) { - if (mos7840_port->has_led) { - /* Turn off LED */ - mos7840_set_led_sync(mos7840_port->port, - MODEM_CONTROL_REGISTER, 0x0300); - - del_timer_sync(&mos7840_port->led_timer1); - del_timer_sync(&mos7840_port->led_timer2); - } - usb_free_urb(mos7840_port->control_urb); - kfree(mos7840_port->ctrl_buf); - kfree(mos7840_port->dr); - kfree(mos7840_port); - } - } + return 0; } static struct usb_serial_driver moschip7840_4port_device = { @@ -2654,9 +2614,8 @@ static struct usb_serial_driver moschip7840_4port_device = { .tiocmget = mos7840_tiocmget, .tiocmset = mos7840_tiocmset, .get_icount = mos7840_get_icount, - .attach = mos7840_startup, - .disconnect = mos7840_disconnect, - .release = mos7840_release, + .port_probe = mos7840_port_probe, + .port_remove = mos7840_port_remove, .read_bulk_callback = mos7840_bulk_in_callback, .read_int_callback = mos7840_interrupt_callback, }; -- cgit v0.10.2 From ae685effe70cbe11fc269741629022f76005ea99 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 25 Oct 2012 18:56:35 +0200 Subject: USB: mos7840: fix port_probe flow Remove temporary do-while(0) loop used to keep changes minimal. Fixup indentation, remove some line breaks, and replace break with goto to maintain flow. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index bc3df86..1cf3375 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -2340,208 +2340,191 @@ static int mos7840_port_probe(struct usb_serial_port *port) pnum = port->number - serial->minor; - /* FIXME: remove do-while(0) loop used to keep stable patch minimal. - */ - do { - dev_dbg(&port->dev, "mos7840_startup: configuring port %d............\n", pnum); - mos7840_port = kzalloc(sizeof(struct moschip_port), GFP_KERNEL); - if (mos7840_port == NULL) { - dev_err(&port->dev, "%s - Out of memory\n", __func__); - return -ENOMEM; - } - - /* Initialize all port interrupt end point to port 0 int - * endpoint. Our device has only one interrupt end point - * common to all port */ - - mos7840_port->port = port; - mos7840_set_port_private(port, mos7840_port); - spin_lock_init(&mos7840_port->pool_lock); - - /* minor is not initialised until later by - * usb-serial.c:get_free_serial() and cannot therefore be used - * to index device instances */ - mos7840_port->port_num = pnum + 1; - dev_dbg(&port->dev, "port->number = %d\n", port->number); - dev_dbg(&port->dev, "port->serial->minor = %d\n", port->serial->minor); - dev_dbg(&port->dev, "mos7840_port->port_num = %d\n", mos7840_port->port_num); - dev_dbg(&port->dev, "serial->minor = %d\n", serial->minor); - - if (mos7840_port->port_num == 1) { - mos7840_port->SpRegOffset = 0x0; - mos7840_port->ControlRegOffset = 0x1; - mos7840_port->DcrRegOffset = 0x4; - } else if ((mos7840_port->port_num == 2) - && (serial->num_ports == 4)) { - mos7840_port->SpRegOffset = 0x8; - mos7840_port->ControlRegOffset = 0x9; - mos7840_port->DcrRegOffset = 0x16; - } else if ((mos7840_port->port_num == 2) - && (serial->num_ports == 2)) { - mos7840_port->SpRegOffset = 0xa; - mos7840_port->ControlRegOffset = 0xb; - mos7840_port->DcrRegOffset = 0x19; - } else if ((mos7840_port->port_num == 3) - && (serial->num_ports == 4)) { - mos7840_port->SpRegOffset = 0xa; - mos7840_port->ControlRegOffset = 0xb; - mos7840_port->DcrRegOffset = 0x19; - } else if ((mos7840_port->port_num == 4) - && (serial->num_ports == 4)) { - mos7840_port->SpRegOffset = 0xc; - mos7840_port->ControlRegOffset = 0xd; - mos7840_port->DcrRegOffset = 0x1c; - } - mos7840_dump_serial_port(port, mos7840_port); - mos7840_set_port_private(port, mos7840_port); + dev_dbg(&port->dev, "mos7840_startup: configuring port %d\n", pnum); + mos7840_port = kzalloc(sizeof(struct moschip_port), GFP_KERNEL); + if (mos7840_port == NULL) { + dev_err(&port->dev, "%s - Out of memory\n", __func__); + return -ENOMEM; + } - /* enable rx_disable bit in control register */ - status = mos7840_get_reg_sync(port, - mos7840_port->ControlRegOffset, &Data); - if (status < 0) { - dev_dbg(&port->dev, "Reading ControlReg failed status-0x%x\n", status); - break; - } else - dev_dbg(&port->dev, "ControlReg Reading success val is %x, status%d\n", Data, status); - Data |= 0x08; /* setting driver done bit */ - Data |= 0x04; /* sp1_bit to have cts change reflect in - modem status reg */ + /* Initialize all port interrupt end point to port 0 int + * endpoint. Our device has only one interrupt end point + * common to all port */ + + mos7840_port->port = port; + mos7840_set_port_private(port, mos7840_port); + spin_lock_init(&mos7840_port->pool_lock); + + /* minor is not initialised until later by + * usb-serial.c:get_free_serial() and cannot therefore be used + * to index device instances */ + mos7840_port->port_num = pnum + 1; + dev_dbg(&port->dev, "port->number = %d\n", port->number); + dev_dbg(&port->dev, "port->serial->minor = %d\n", port->serial->minor); + dev_dbg(&port->dev, "mos7840_port->port_num = %d\n", mos7840_port->port_num); + dev_dbg(&port->dev, "serial->minor = %d\n", serial->minor); + + if (mos7840_port->port_num == 1) { + mos7840_port->SpRegOffset = 0x0; + mos7840_port->ControlRegOffset = 0x1; + mos7840_port->DcrRegOffset = 0x4; + } else if ((mos7840_port->port_num == 2) && (serial->num_ports == 4)) { + mos7840_port->SpRegOffset = 0x8; + mos7840_port->ControlRegOffset = 0x9; + mos7840_port->DcrRegOffset = 0x16; + } else if ((mos7840_port->port_num == 2) && (serial->num_ports == 2)) { + mos7840_port->SpRegOffset = 0xa; + mos7840_port->ControlRegOffset = 0xb; + mos7840_port->DcrRegOffset = 0x19; + } else if ((mos7840_port->port_num == 3) && (serial->num_ports == 4)) { + mos7840_port->SpRegOffset = 0xa; + mos7840_port->ControlRegOffset = 0xb; + mos7840_port->DcrRegOffset = 0x19; + } else if ((mos7840_port->port_num == 4) && (serial->num_ports == 4)) { + mos7840_port->SpRegOffset = 0xc; + mos7840_port->ControlRegOffset = 0xd; + mos7840_port->DcrRegOffset = 0x1c; + } + mos7840_dump_serial_port(port, mos7840_port); + mos7840_set_port_private(port, mos7840_port); + + /* enable rx_disable bit in control register */ + status = mos7840_get_reg_sync(port, + mos7840_port->ControlRegOffset, &Data); + if (status < 0) { + dev_dbg(&port->dev, "Reading ControlReg failed status-0x%x\n", status); + goto out; + } else + dev_dbg(&port->dev, "ControlReg Reading success val is %x, status%d\n", Data, status); + Data |= 0x08; /* setting driver done bit */ + Data |= 0x04; /* sp1_bit to have cts change reflect in + modem status reg */ + + /* Data |= 0x20; //rx_disable bit */ + status = mos7840_set_reg_sync(port, + mos7840_port->ControlRegOffset, Data); + if (status < 0) { + dev_dbg(&port->dev, "Writing ControlReg failed(rx_disable) status-0x%x\n", status); + goto out; + } else + dev_dbg(&port->dev, "ControlReg Writing success(rx_disable) status%d\n", status); + + /* Write default values in DCR (i.e 0x01 in DCR0, 0x05 in DCR2 + and 0x24 in DCR3 */ + Data = 0x01; + status = mos7840_set_reg_sync(port, + (__u16) (mos7840_port->DcrRegOffset + 0), Data); + if (status < 0) { + dev_dbg(&port->dev, "Writing DCR0 failed status-0x%x\n", status); + goto out; + } else + dev_dbg(&port->dev, "DCR0 Writing success status%d\n", status); - /* Data |= 0x20; //rx_disable bit */ - status = mos7840_set_reg_sync(port, - mos7840_port->ControlRegOffset, Data); - if (status < 0) { - dev_dbg(&port->dev, "Writing ControlReg failed(rx_disable) status-0x%x\n", status); - break; - } else - dev_dbg(&port->dev, "ControlReg Writing success(rx_disable) status%d\n", status); + Data = 0x05; + status = mos7840_set_reg_sync(port, + (__u16) (mos7840_port->DcrRegOffset + 1), Data); + if (status < 0) { + dev_dbg(&port->dev, "Writing DCR1 failed status-0x%x\n", status); + goto out; + } else + dev_dbg(&port->dev, "DCR1 Writing success status%d\n", status); - /* Write default values in DCR (i.e 0x01 in DCR0, 0x05 in DCR2 - and 0x24 in DCR3 */ - Data = 0x01; - status = mos7840_set_reg_sync(port, - (__u16) (mos7840_port->DcrRegOffset + 0), Data); - if (status < 0) { - dev_dbg(&port->dev, "Writing DCR0 failed status-0x%x\n", status); - break; - } else - dev_dbg(&port->dev, "DCR0 Writing success status%d\n", status); + Data = 0x24; + status = mos7840_set_reg_sync(port, + (__u16) (mos7840_port->DcrRegOffset + 2), Data); + if (status < 0) { + dev_dbg(&port->dev, "Writing DCR2 failed status-0x%x\n", status); + goto out; + } else + dev_dbg(&port->dev, "DCR2 Writing success status%d\n", status); - Data = 0x05; - status = mos7840_set_reg_sync(port, - (__u16) (mos7840_port->DcrRegOffset + 1), Data); - if (status < 0) { - dev_dbg(&port->dev, "Writing DCR1 failed status-0x%x\n", status); - break; - } else - dev_dbg(&port->dev, "DCR1 Writing success status%d\n", status); + /* write values in clkstart0x0 and clkmulti 0x20 */ + Data = 0x0; + status = mos7840_set_reg_sync(port, CLK_START_VALUE_REGISTER, Data); + if (status < 0) { + dev_dbg(&port->dev, "Writing CLK_START_VALUE_REGISTER failed status-0x%x\n", status); + goto out; + } else + dev_dbg(&port->dev, "CLK_START_VALUE_REGISTER Writing success status%d\n", status); - Data = 0x24; - status = mos7840_set_reg_sync(port, - (__u16) (mos7840_port->DcrRegOffset + 2), Data); - if (status < 0) { - dev_dbg(&port->dev, "Writing DCR2 failed status-0x%x\n", status); - break; - } else - dev_dbg(&port->dev, "DCR2 Writing success status%d\n", status); + Data = 0x20; + status = mos7840_set_reg_sync(port, CLK_MULTI_REGISTER, Data); + if (status < 0) { + dev_dbg(&port->dev, "Writing CLK_MULTI_REGISTER failed status-0x%x\n", status); + goto error; + } else + dev_dbg(&port->dev, "CLK_MULTI_REGISTER Writing success status%d\n", status); - /* write values in clkstart0x0 and clkmulti 0x20 */ - Data = 0x0; + /* write value 0x0 to scratchpad register */ + Data = 0x00; + status = mos7840_set_uart_reg(port, SCRATCH_PAD_REGISTER, Data); + if (status < 0) { + dev_dbg(&port->dev, "Writing SCRATCH_PAD_REGISTER failed status-0x%x\n", status); + goto out; + } else + dev_dbg(&port->dev, "SCRATCH_PAD_REGISTER Writing success status%d\n", status); + + /* Zero Length flag register */ + if ((mos7840_port->port_num != 1) && (serial->num_ports == 2)) { + Data = 0xff; status = mos7840_set_reg_sync(port, - CLK_START_VALUE_REGISTER, Data); + (__u16) (ZLP_REG1 + + ((__u16)mos7840_port->port_num)), Data); + dev_dbg(&port->dev, "ZLIP offset %x\n", + (__u16)(ZLP_REG1 + ((__u16) mos7840_port->port_num))); if (status < 0) { - dev_dbg(&port->dev, "Writing CLK_START_VALUE_REGISTER failed status-0x%x\n", status); - break; + dev_dbg(&port->dev, "Writing ZLP_REG%d failed status-0x%x\n", pnum + 2, status); + goto out; } else - dev_dbg(&port->dev, "CLK_START_VALUE_REGISTER Writing success status%d\n", status); - - Data = 0x20; + dev_dbg(&port->dev, "ZLP_REG%d Writing success status%d\n", pnum + 2, status); + } else { + Data = 0xff; status = mos7840_set_reg_sync(port, - CLK_MULTI_REGISTER, Data); - if (status < 0) { - dev_dbg(&port->dev, "Writing CLK_MULTI_REGISTER failed status-0x%x\n", status); - goto error; - } else - dev_dbg(&port->dev, "CLK_MULTI_REGISTER Writing success status%d\n", status); - - /* write value 0x0 to scratchpad register */ - Data = 0x00; - status = mos7840_set_uart_reg(port, - SCRATCH_PAD_REGISTER, Data); + (__u16) (ZLP_REG1 + + ((__u16)mos7840_port->port_num) - 0x1), Data); + dev_dbg(&port->dev, "ZLIP offset %x\n", + (__u16)(ZLP_REG1 + ((__u16) mos7840_port->port_num) - 0x1)); if (status < 0) { - dev_dbg(&port->dev, "Writing SCRATCH_PAD_REGISTER failed status-0x%x\n", status); - break; + dev_dbg(&port->dev, "Writing ZLP_REG%d failed status-0x%x\n", pnum + 1, status); + goto out; } else - dev_dbg(&port->dev, "SCRATCH_PAD_REGISTER Writing success status%d\n", status); + dev_dbg(&port->dev, "ZLP_REG%d Writing success status%d\n", pnum + 1, status); - /* Zero Length flag register */ - if ((mos7840_port->port_num != 1) - && (serial->num_ports == 2)) { - - Data = 0xff; - status = mos7840_set_reg_sync(port, - (__u16) (ZLP_REG1 + - ((__u16)mos7840_port->port_num)), Data); - dev_dbg(&port->dev, "ZLIP offset %x\n", - (__u16)(ZLP_REG1 + ((__u16) mos7840_port->port_num))); - if (status < 0) { - dev_dbg(&port->dev, "Writing ZLP_REG%d failed status-0x%x\n", pnum + 2, status); - break; - } else - dev_dbg(&port->dev, "ZLP_REG%d Writing success status%d\n", pnum + 2, status); - } else { - Data = 0xff; - status = mos7840_set_reg_sync(port, - (__u16) (ZLP_REG1 + - ((__u16)mos7840_port->port_num) - 0x1), Data); - dev_dbg(&port->dev, "ZLIP offset %x\n", - (__u16)(ZLP_REG1 + ((__u16) mos7840_port->port_num) - 0x1)); - if (status < 0) { - dev_dbg(&port->dev, "Writing ZLP_REG%d failed status-0x%x\n", pnum + 1, status); - break; - } else - dev_dbg(&port->dev, "ZLP_REG%d Writing success status%d\n", pnum + 1, status); - - } - mos7840_port->control_urb = usb_alloc_urb(0, GFP_KERNEL); - mos7840_port->ctrl_buf = kmalloc(16, GFP_KERNEL); - mos7840_port->dr = kmalloc(sizeof(struct usb_ctrlrequest), - GFP_KERNEL); - if (!mos7840_port->control_urb || !mos7840_port->ctrl_buf || - !mos7840_port->dr) { - status = -ENOMEM; - goto error; - } - - mos7840_port->has_led = false; + } + mos7840_port->control_urb = usb_alloc_urb(0, GFP_KERNEL); + mos7840_port->ctrl_buf = kmalloc(16, GFP_KERNEL); + mos7840_port->dr = kmalloc(sizeof(struct usb_ctrlrequest), + GFP_KERNEL); + if (!mos7840_port->control_urb || !mos7840_port->ctrl_buf || + !mos7840_port->dr) { + status = -ENOMEM; + goto error; + } - /* Initialize LED timers */ - if (device_type == MOSCHIP_DEVICE_ID_7810) { - mos7840_port->has_led = true; + mos7840_port->has_led = false; - init_timer(&mos7840_port->led_timer1); - mos7840_port->led_timer1.function = mos7840_led_off; - mos7840_port->led_timer1.expires = - jiffies + msecs_to_jiffies(LED_ON_MS); - mos7840_port->led_timer1.data = - (unsigned long)mos7840_port; + /* Initialize LED timers */ + if (device_type == MOSCHIP_DEVICE_ID_7810) { + mos7840_port->has_led = true; - init_timer(&mos7840_port->led_timer2); - mos7840_port->led_timer2.function = - mos7840_led_flag_off; - mos7840_port->led_timer2.expires = - jiffies + msecs_to_jiffies(LED_OFF_MS); - mos7840_port->led_timer2.data = - (unsigned long)mos7840_port; + init_timer(&mos7840_port->led_timer1); + mos7840_port->led_timer1.function = mos7840_led_off; + mos7840_port->led_timer1.expires = + jiffies + msecs_to_jiffies(LED_ON_MS); + mos7840_port->led_timer1.data = (unsigned long)mos7840_port; - mos7840_port->led_flag = false; + init_timer(&mos7840_port->led_timer2); + mos7840_port->led_timer2.function = mos7840_led_flag_off; + mos7840_port->led_timer2.expires = + jiffies + msecs_to_jiffies(LED_OFF_MS); + mos7840_port->led_timer2.data = (unsigned long)mos7840_port; - /* Turn off LED */ - mos7840_set_led_sync(port, - MODEM_CONTROL_REGISTER, 0x0300); - } - } while (0); + mos7840_port->led_flag = false; + /* Turn off LED */ + mos7840_set_led_sync(port, MODEM_CONTROL_REGISTER, 0x0300); + } +out: if (pnum == serial->num_ports - 1) { /* Zero Length flag enable */ Data = 0x0f; -- cgit v0.10.2 From b0f9bf369f34791cf8271be8c610a1e50ead6002 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 8 Oct 2012 08:35:56 -0300 Subject: [media] dvb-frontends: fix potential NULL pointer dereference in stv0900_set_mclk() The dereference should be moved below the NULL test. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb-frontends/stv0900_core.c b/drivers/media/dvb-frontends/stv0900_core.c index 262dfa5..b551ca3 100644 --- a/drivers/media/dvb-frontends/stv0900_core.c +++ b/drivers/media/dvb-frontends/stv0900_core.c @@ -300,15 +300,15 @@ static enum fe_stv0900_error stv0900_set_mclk(struct stv0900_internal *intp, u32 { u32 m_div, clk_sel; - dprintk("%s: Mclk set to %d, Quartz = %d\n", __func__, mclk, - intp->quartz); - if (intp == NULL) return STV0900_INVALID_HANDLE; if (intp->errs) return STV0900_I2C_ERROR; + dprintk("%s: Mclk set to %d, Quartz = %d\n", __func__, mclk, + intp->quartz); + clk_sel = ((stv0900_get_bits(intp, F0900_SELX1RATIO) == 1) ? 4 : 6); m_div = ((clk_sel * mclk) / intp->quartz) - 1; stv0900_write_bits(intp, F0900_M_DIV, m_div); -- cgit v0.10.2 From 1fa48cd5c4f1403db1f5a55ea3c346a33f39a33a Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 12 Oct 2012 11:28:40 -0300 Subject: [media] omap3isp: video: Fix warning caused by bad vidioc_s_crop prototype Commit 4f996594 ("v4l2: make vidioc_s_crop const") modified the vidioc_s_crop operation prototype but forgot to update the OMAP3 ISP driver. Add a const keyword to fix the function prototype. Signed-off-by: Laurent Pinchart Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/omap3isp/ispvideo.c b/drivers/media/platform/omap3isp/ispvideo.c index a0b737fe..75cd309 100644 --- a/drivers/media/platform/omap3isp/ispvideo.c +++ b/drivers/media/platform/omap3isp/ispvideo.c @@ -792,7 +792,7 @@ isp_video_get_crop(struct file *file, void *fh, struct v4l2_crop *crop) } static int -isp_video_set_crop(struct file *file, void *fh, struct v4l2_crop *crop) +isp_video_set_crop(struct file *file, void *fh, const struct v4l2_crop *crop) { struct isp_video *video = video_drvdata(file); struct v4l2_subdev *subdev; -- cgit v0.10.2 From 55c8504672adfb8065da5196ce1cce7db97532d0 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 12 Oct 2012 11:20:10 -0300 Subject: [media] omap3isp: Fix warning caused by bad subdev events operations prototypes Remove the const keyword from the V4L2 subdev events operations to match the V4L2 API. Signed-off-by: Laurent Pinchart Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/omap3isp/ispccdc.c b/drivers/media/platform/omap3isp/ispccdc.c index 60181ab..aa9df9d 100644 --- a/drivers/media/platform/omap3isp/ispccdc.c +++ b/drivers/media/platform/omap3isp/ispccdc.c @@ -1706,7 +1706,7 @@ static long ccdc_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) } static int ccdc_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh, - const struct v4l2_event_subscription *sub) + struct v4l2_event_subscription *sub) { if (sub->type != V4L2_EVENT_FRAME_SYNC) return -EINVAL; @@ -1719,7 +1719,7 @@ static int ccdc_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh, } static int ccdc_unsubscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh, - const struct v4l2_event_subscription *sub) + struct v4l2_event_subscription *sub) { return v4l2_event_unsubscribe(fh, sub); } diff --git a/drivers/media/platform/omap3isp/ispstat.c b/drivers/media/platform/omap3isp/ispstat.c index d7ac76b..b8640be 100644 --- a/drivers/media/platform/omap3isp/ispstat.c +++ b/drivers/media/platform/omap3isp/ispstat.c @@ -1025,7 +1025,7 @@ void omap3isp_stat_dma_isr(struct ispstat *stat) int omap3isp_stat_subscribe_event(struct v4l2_subdev *subdev, struct v4l2_fh *fh, - const struct v4l2_event_subscription *sub) + struct v4l2_event_subscription *sub) { struct ispstat *stat = v4l2_get_subdevdata(subdev); @@ -1037,7 +1037,7 @@ int omap3isp_stat_subscribe_event(struct v4l2_subdev *subdev, int omap3isp_stat_unsubscribe_event(struct v4l2_subdev *subdev, struct v4l2_fh *fh, - const struct v4l2_event_subscription *sub) + struct v4l2_event_subscription *sub) { return v4l2_event_unsubscribe(fh, sub); } diff --git a/drivers/media/platform/omap3isp/ispstat.h b/drivers/media/platform/omap3isp/ispstat.h index a6fe653..9b7c865 100644 --- a/drivers/media/platform/omap3isp/ispstat.h +++ b/drivers/media/platform/omap3isp/ispstat.h @@ -147,10 +147,10 @@ int omap3isp_stat_init(struct ispstat *stat, const char *name, void omap3isp_stat_cleanup(struct ispstat *stat); int omap3isp_stat_subscribe_event(struct v4l2_subdev *subdev, struct v4l2_fh *fh, - const struct v4l2_event_subscription *sub); + struct v4l2_event_subscription *sub); int omap3isp_stat_unsubscribe_event(struct v4l2_subdev *subdev, struct v4l2_fh *fh, - const struct v4l2_event_subscription *sub); + struct v4l2_event_subscription *sub); int omap3isp_stat_s_stream(struct v4l2_subdev *subdev, int enable); int omap3isp_stat_busy(struct ispstat *stat); -- cgit v0.10.2 From c323dc023b9501e5d09582ec7efd1d40a9001d99 Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Tue, 9 Oct 2012 12:22:36 +0200 Subject: ehci: fix Lucid nohandoff pci quirk to be more generic with BIOS versions BIOS vendors keep changing the BIOS versions. Only match the beginning of the string to match all Lucid tablets with board name M11JB. Signed-off-by: Anisse Astier Cc: Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 966d148..ead4525 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -545,7 +545,7 @@ static const struct dmi_system_id __devinitconst ehci_dmi_nohandoff_table[] = { /* Pegatron Lucid (Ordissimo AIRIS) */ .matches = { DMI_MATCH(DMI_BOARD_NAME, "M11JB"), - DMI_MATCH(DMI_BIOS_VERSION, "Lucid-GE-133"), + DMI_MATCH(DMI_BIOS_VERSION, "Lucid-"), }, }, { } -- cgit v0.10.2 From 8daf8b6086f9d575200cd0aa3797e26137255609 Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Tue, 9 Oct 2012 12:22:37 +0200 Subject: ehci: Add yet-another Lucid nohandoff pci quirk Board name changed on another shipping Lucid tablet. Signed-off-by: Anisse Astier Cc: Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index ead4525..39f9e4a 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -548,6 +548,13 @@ static const struct dmi_system_id __devinitconst ehci_dmi_nohandoff_table[] = { DMI_MATCH(DMI_BIOS_VERSION, "Lucid-"), }, }, + { + /* Pegatron Lucid (Ordissimo) */ + .matches = { + DMI_MATCH(DMI_BOARD_NAME, "Ordissimo"), + DMI_MATCH(DMI_BIOS_VERSION, "Lucid-"), + }, + }, { } }; -- cgit v0.10.2 From 10bd4c7572b6c6eb97f1c15dedd2d36c63907f91 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Wed, 24 Oct 2012 10:49:33 +0800 Subject: firmware loader: document kernel direct loading This patch adds description on recently introduced direct firmware loading by Linus. Cc: Linus Torvalds Signed-off-by: Ming Lei Signed-off-by: Greg Kroah-Hartman diff --git a/Documentation/firmware_class/README b/Documentation/firmware_class/README index 7eceaff..815b711 100644 --- a/Documentation/firmware_class/README +++ b/Documentation/firmware_class/README @@ -18,32 +18,40 @@ High level behavior (mixed): ============================ - kernel(driver): calls request_firmware(&fw_entry, $FIRMWARE, device) - - userspace: + 1), kernel(driver): + - calls request_firmware(&fw_entry, $FIRMWARE, device) + - kernel searchs the fimware image with name $FIRMWARE directly + in the below search path of root filesystem: + "/lib/firmware/updates/" UTS_RELEASE, + "/lib/firmware/updates", + "/lib/firmware/" UTS_RELEASE, + "/lib/firmware" + - If found, goto 7), else goto 2) + + 2), userspace: - /sys/class/firmware/xxx/{loading,data} appear. - hotplug gets called with a firmware identifier in $FIRMWARE and the usual hotplug environment. - hotplug: echo 1 > /sys/class/firmware/xxx/loading - kernel: Discard any previous partial load. + 3), kernel: Discard any previous partial load. - userspace: + 4), userspace: - hotplug: cat appropriate_firmware_image > \ /sys/class/firmware/xxx/data - kernel: grows a buffer in PAGE_SIZE increments to hold the image as it + 5), kernel: grows a buffer in PAGE_SIZE increments to hold the image as it comes in. - userspace: + 6), userspace: - hotplug: echo 0 > /sys/class/firmware/xxx/loading - kernel: request_firmware() returns and the driver has the firmware + 7), kernel: request_firmware() returns and the driver has the firmware image in fw_entry->{data,size}. If something went wrong request_firmware() returns non-zero and fw_entry is set to NULL. - kernel(driver): Driver code calls release_firmware(fw_entry) releasing + 8), kernel(driver): Driver code calls release_firmware(fw_entry) releasing the firmware image and any related resource. High level behavior (driver code): -- cgit v0.10.2 From b5416d32a6f1a4cd4e399654b4bac7f558ab237e Mon Sep 17 00:00:00 2001 From: Tekkaman Ninja Date: Thu, 27 Sep 2012 23:36:33 +0800 Subject: Documentation:Chinese translation of Documentation/IRQ.txt This is a Chinese translated version of Documentation/IRQ.txt Signed-off-by: Fu Wei Acked-by: Harry Wei Signed-off-by: Greg Kroah-Hartman diff --git a/Documentation/zh_CN/IRQ.txt b/Documentation/zh_CN/IRQ.txt new file mode 100644 index 0000000..956026d --- /dev/null +++ b/Documentation/zh_CN/IRQ.txt @@ -0,0 +1,39 @@ +Chinese translated version of Documentation/IRQ.txt + +If you have any comment or update to the content, please contact the +original document maintainer directly. However, if you have a problem +communicating in English you can also ask the Chinese maintainer for +help. Contact the Chinese maintainer if this translation is outdated +or if there is a problem with the translation. + +Maintainer: Eric W. Biederman +Chinese maintainer: Fu Wei +--------------------------------------------------------------------- +Documentation/IRQ.txt 的中文翻译 + +如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文 +交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻 +译存在问题，请联系中文版维护者。 +英文版维护者： Eric W. Biederman +中文版维护者： 傅炜 Fu Wei +中文版翻译者： 傅炜 Fu Wei +中文版校译者： 傅炜 Fu Wei + + +以下为正文 +--------------------------------------------------------------------- +何为 IRQ? + +一个 IRQ 是来自某个设备的一个中断请求。目前，它们可以来自一个硬件引脚， +或来自一个数据包。多个设备可能连接到同个硬件引脚，从而共享一个 IRQ。 + +一个 IRQ 编号是用于告知硬件中断源的内核标识。通常情况下，这是一个 +全局 irq_desc 数组的索引，但是除了在 linux/interrupt.h 中的实现， +具体的细节是体系结构特定的。 + +一个 IRQ 编号是设备上某个可能的中断源的枚举。通常情况下，枚举的编号是 +该引脚在系统内中断控制器的所有输入引脚中的编号。对于 ISA 总线中的情况， +枚举的是在两个 i8259 中断控制器中 16 个输入引脚。 + +架构可以对 IRQ 编号指定额外的含义，在硬件涉及任何手工配置的情况下， +是被提倡的。ISA 的 IRQ 是一个分配这类额外含义的典型例子。 -- cgit v0.10.2 From 4bdac7b668d29dcaa53b72921b7f6a51d0f80b9b Mon Sep 17 00:00:00 2001 From: Tekkaman Ninja Date: Wed, 24 Oct 2012 23:56:47 +0800 Subject: Documentation:Chinese translation of Documentation/arm64/booting.txt This is a Chinese translated version of Documentation/arm64/booting.txt Signed-off-by: Fu Wei Acked-by: Catalin Marinas Signed-off-by: Greg Kroah-Hartman diff --git a/Documentation/zh_CN/arm64/booting.txt b/Documentation/zh_CN/arm64/booting.txt new file mode 100644 index 0000000..28fa325 --- /dev/null +++ b/Documentation/zh_CN/arm64/booting.txt @@ -0,0 +1,156 @@ +Chinese translated version of Documentation/arm64/booting.txt + +If you have any comment or update to the content, please contact the +original document maintainer directly. However, if you have a problem +communicating in English you can also ask the Chinese maintainer for +help. Contact the Chinese maintainer if this translation is outdated +or if there is a problem with the translation. + +Maintainer: Will Deacon +Chinese maintainer: Fu Wei +--------------------------------------------------------------------- +Documentation/arm64/booting.txt 的中文翻译 + +如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文 +交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻 +译存在问题，请联系中文版维护者。 + +英文版维护者： Will Deacon +中文版维护者： 傅炜 Fu Wei +中文版翻译者： 傅炜 Fu Wei +中文版校译者： 傅炜 Fu Wei + +以下为正文 +--------------------------------------------------------------------- + 启动 AArch64 Linux + ================== + +作者: Will Deacon +日期: 2012 年 09 月 07 日 + +本文档基于 Russell King 的 ARM 启动文档，且适用于所有公开发布的 +AArch64 Linux 内核代码。 + +AArch64 异常模型由多个异常级别（EL0 - EL3）组成，对于 EL0 和 EL1 +异常级有对应的安全和非安全模式。EL2 是系统管理级，且仅存在于 +非安全模式下。EL3 是最高特权级，且仅存在于安全模式下。 + +基于本文档的目的，我们将简单地使用‘引导装载程序’（‘boot loader’） +这个术语来定义在将控制权交给 Linux 内核前 CPU 上执行的所有软件。 +这可能包含安全监控和系统管理代码，或者它可能只是一些用于准备最小启动 +环境的指令。 + +基本上，引导装载程序（至少）应实现以下操作： + +1、设置和初始化 RAM +2、设置设备树数据 +3、解压内核映像 +4、调用内核映像 + + +1、设置和初始化 RAM +----------------- + +必要性: 强制 + +引导装载程序应该找到并初始化系统中所有内核用于保持系统变量数据的 RAM。 +这个操作的执行是设备依赖的。（它可能使用内部算法来自动定位和计算所有 +RAM，或可能使用对这个设备已知的 RAM 信息，还可能使用任何引导装载程序 +设计者想到的匹配方法。） + + +2、设置设备树数据 +--------------- + +必要性: 强制 + +设备树数据块（dtb）大小必须不大于 2 MB，且位于从内核映像起始算起第一个 +512MB 内的 2MB 边界上。这使得内核可以通过初始页表中的单个节描述符来 +映射此数据块。 + + +3、解压内核映像 +------------- + +必要性: 可选 + +AArch64 内核当前没有提供自解压代码，因此如果使用了压缩内核映像文件 +（比如 Image.gz），则需要通过引导装载程序（使用 gzip 等）来进行解压。 +若引导装载程序没有实现这个需求，就要使用非压缩内核映像文件。 + + +4、调用内核映像 +------------- + +必要性: 强制 + +已解压的内核映像包含一个 32 字节的头，内容如下： + + u32 magic = 0x14000008; /* 跳转到 stext, 小端 */ + u32 res0 = 0; /* 保留 */ + u64 text_offset; /* 映像装载偏移 */ + u64 res1 = 0; /* 保留 */ + u64 res2 = 0; /* 保留 */ + +映像必须位于系统 RAM 起始处的特定偏移（当前是 0x80000）。系统 RAM +的起始地址必须是以 2MB 对齐的。 + +在跳转入内核前，必须符合以下状态： + +- 停止所有 DMA 设备，这样内存数据就不会因为虚假网络包或磁盘数据而 + 被破坏。这可能可以节省你许多的调试时间。 + +- 主 CPU 通用寄存器设置 + x0 = 系统 RAM 中设备树数据块（dtb）的物理地址。 + x1 = 0 (保留，将来可能使用) + x2 = 0 (保留，将来可能使用) + x3 = 0 (保留，将来可能使用) + +- CPU 模式 + 所有形式的中断必须在 PSTATE.DAIF 中被屏蔽（Debug、SError、IRQ + 和 FIQ）。 + CPU 必须处于 EL2（推荐，可访问虚拟化扩展）或非安全 EL1 模式下。 + +- 高速缓存、MMU + MMU 必须关闭。 + 指令缓存开启或关闭都可以。 + 数据缓存必须关闭且无效。 + 外部高速缓存（如果存在）必须配置并禁用。 + +- 架构计时器 + CNTFRQ 必须设定为计时器的频率。 + 如果在 EL1 模式下进入内核，则 CNTHCTL_EL2 中的 EL1PCTEN (bit 0) + 必须置位。 + +- 一致性 + 通过内核启动的所有 CPU 在内核入口地址上必须处于相同的一致性域中。 + 这可能要根据具体实现来定义初始化过程，以使能每个CPU上对维护操作的 + 接收。 + +- 系统寄存器 + 在进入内核映像的异常级中，所有构架中可写的系统寄存器必须通过软件 + 在一个更高的异常级别下初始化，以防止在 未知 状态下运行。 + +引导装载程序必须在每个 CPU 处于以下状态时跳入内核入口： + +- 主 CPU 必须直接跳入内核映像的第一条指令。通过此 CPU 传递的设备树 + 数据块必须在每个 CPU 节点中包含以下内容： + + 1、‘enable-method’属性。目前，此字段支持的值仅为字符串“spin-table”。 + + 2、‘cpu-release-addr’标识一个 64-bit、初始化为零的内存位置。 + + 引导装载程序必须生成这些设备树属性，并在跳入内核入口之前将其插入 + 数据块。 + +- 任何辅助 CPU 必须在内存保留区（通过设备树中的 /memreserve/ 域传递 + 给内核）中自旋于内核之外，轮询它们的 cpu-release-addr 位置（必须 + 包含在保留区中）。可通过插入 wfe 指令来降低忙循环开销，而主 CPU 将 + 发出 sev 指令。当对 cpu-release-addr 所指位置的读取操作返回非零值 + 时，CPU 必须直接跳入此值所指向的地址。 + +- 辅助 CPU 通用寄存器设置 + x0 = 0 (保留，将来可能使用) + x1 = 0 (保留，将来可能使用) + x2 = 0 (保留，将来可能使用) + x3 = 0 (保留，将来可能使用) -- cgit v0.10.2 From bf34be058158fd30622601346819d098dc5d623f Mon Sep 17 00:00:00 2001 From: Tekkaman Ninja Date: Thu, 25 Oct 2012 00:02:53 +0800 Subject: Documentation:Chinese translation of Documentation/arm64/memory.txt This is a Chinese translated version of Documentation/arm64/memory.txt Signed-off-by: Fu Wei Acked-by: Catalin Marinas Signed-off-by: Greg Kroah-Hartman diff --git a/Documentation/zh_CN/arm64/memory.txt b/Documentation/zh_CN/arm64/memory.txt new file mode 100644 index 0000000..83b5193 --- /dev/null +++ b/Documentation/zh_CN/arm64/memory.txt @@ -0,0 +1,93 @@ +Chinese translated version of Documentation/arm64/memory.txt + +If you have any comment or update to the content, please contact the +original document maintainer directly. However, if you have a problem +communicating in English you can also ask the Chinese maintainer for +help. Contact the Chinese maintainer if this translation is outdated +or if there is a problem with the translation. + +Maintainer: Catalin Marinas +Chinese maintainer: Fu Wei +--------------------------------------------------------------------- +Documentation/arm64/memory.txt 的中文翻译 + +如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文 +交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻 +译存在问题，请联系中文版维护者。 + +英文版维护者： Catalin Marinas +中文版维护者： 傅炜 Fu Wei +中文版翻译者： 傅炜 Fu Wei +中文版校译者： 傅炜 Fu Wei + +以下为正文 +--------------------------------------------------------------------- + Linux 在 AArch64 中的内存布局 + =========================== + +作者: Catalin Marinas +日期: 2012 年 02 月 20 日 + +本文档描述 AArch64 Linux 内核所使用的虚拟内存布局。此构架可以实现 +页大小为 4KB 的 4 级转换表和页大小为 64KB 的 3 级转换表。 + +AArch64 Linux 使用页大小为 4KB 的 3 级转换表配置，对于用户和内核 +都有 39-bit (512GB) 的虚拟地址空间。对于页大小为 64KB的配置，仅 +使用 2 级转换表，但内存布局相同。 + +用户地址空间的 63:39 位为 0，而内核地址空间的相应位为 1。TTBRx 的 +选择由虚拟地址的 63 位给出。swapper_pg_dir 仅包含内核（全局）映射， +而用户 pgd 仅包含用户（非全局）映射。swapper_pgd_dir 地址被写入 +TTBR1 中，且从不写入 TTBR0。 + + +AArch64 Linux 内存布局： + +起始地址 结束地址 大小 用途 +----------------------------------------------------------------------- +0000000000000000 0000007fffffffff 512GB 用户空间 + +ffffff8000000000 ffffffbbfffcffff ~240GB vmalloc + +ffffffbbfffd0000 ffffffbcfffdffff 64KB [防护页] + +ffffffbbfffe0000 ffffffbcfffeffff 64KB PCI I/O 空间 + +ffffffbbffff0000 ffffffbcffffffff 64KB [防护页] + +ffffffbc00000000 ffffffbdffffffff 8GB vmemmap + +ffffffbe00000000 ffffffbffbffffff ~8GB [防护页，未来用于 vmmemap] + +ffffffbffc000000 ffffffbfffffffff 64MB 模块 + +ffffffc000000000 ffffffffffffffff 256GB 内存空间 + + +4KB 页大小的转换表查找： + ++--------+--------+--------+--------+--------+--------+--------+--------+ +|63 56|55 48|47 40|39 32|31 24|23 16|15 8|7 0| ++--------+--------+--------+--------+--------+--------+--------+--------+ + | | | | | | + | | | | | v + | | | | | [11:0] 页内偏移 + | | | | +-> [20:12] L3 索引 + | | | +-----------> [29:21] L2 索引 + | | +---------------------> [38:30] L1 索引 + | +-------------------------------> [47:39] L0 索引 (未使用) + +-------------------------------------------------> [63] TTBR0/1 + + +64KB 页大小的转换表查找： + ++--------+--------+--------+--------+--------+--------+--------+--------+ +|63 56|55 48|47 40|39 32|31 24|23 16|15 8|7 0| ++--------+--------+--------+--------+--------+--------+--------+--------+ + | | | | | + | | | | v + | | | | [15:0] 页内偏移 + | | | +----------> [28:16] L3 索引 + | | +--------------------------> [41:29] L2 索引 (仅使用 38:29 ) + | +-------------------------------> [47:42] L1 索引 (未使用) + +-------------------------------------------------> [63] TTBR0/1 -- cgit v0.10.2 From 2cb55a2f47a3c695a0105b7fc04a3b70c3bc4e4f Mon Sep 17 00:00:00 2001 From: Yuanhan Liu Date: Tue, 16 Oct 2012 22:59:04 +0800 Subject: sonypi: suspend/resume callbacks should be conditionally compiled on CONFIG_PM_SLEEP This will fix warnings like following when CONFIG_PM_SLEEP is not set: warning: 'xxx_suspend' defined but not used [-Wunused-function] warning: 'xxx_resume' defined but not used [-Wunused-function] Because SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) Only references the callbacks on CONFIG_PM_SLEEP (instead of CONFIG_PM). Cc: Mattia Dongili Cc: Arnd Bergmann Cc: platform-driver-x86@vger.kernel.org Signed-off-by: Yuanhan Liu Signed-off-by: Fengguang Wu Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c index 320debb..9b4f011 100644 --- a/drivers/char/sonypi.c +++ b/drivers/char/sonypi.c @@ -1456,7 +1456,7 @@ static int __devexit sonypi_remove(struct platform_device *dev) return 0; } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int old_camera_power; static int sonypi_suspend(struct device *dev) -- cgit v0.10.2 From 661bec6ba884b86517ef5ea529aabb281a7198d9 Mon Sep 17 00:00:00 2001 From: Gabriel de Perthuis Date: Wed, 10 Oct 2012 08:50:47 -0600 Subject: Fix a sign bug causing invalid memory access in the ino_paths ioctl. To see the problem, create many hardlinks to the same file (120 should do it), then look up paths by inode with: ls -i btrfs inspect inode-resolve -v $ino /mnt/btrfs I noticed the memory layout of the fspath->val data had some irregularities (some unnecessary gaps that stop appearing about halfway), so I'm not sure there aren't any bugs left in it. diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index f318793..2bcbea3 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -1186,7 +1186,7 @@ static char *ref_to_path(struct btrfs_root *fs_root, int slot; u64 next_inum; int ret; - s64 bytes_left = size - 1; + s64 bytes_left = ((s64)size) - 1; struct extent_buffer *eb = eb_in; struct btrfs_key found_key; int leave_spinning = path->leave_spinning; -- cgit v0.10.2 From 84167d190569eedcdb24bf2499bdda437e442962 Mon Sep 17 00:00:00 2001 From: Stefan Behrens Date: Thu, 11 Oct 2012 07:25:16 -0600 Subject: Btrfs: Fix wrong error handling code gcc says "warning: comparison of unsigned expression >= 0 is always true" because i is an unsigned long. And gcc is right this time. Signed-off-by: Stefan Behrens diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 64dc93f..a32ebfe 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -4104,8 +4104,8 @@ struct extent_buffer *alloc_dummy_extent_buffer(u64 start, unsigned long len) return eb; err: - for (i--; i >= 0; i--) - __free_page(eb->pages[i]); + for (; i > 0; i--) + __free_page(eb->pages[i - 1]); __free_extent_buffer(eb); return NULL; } -- cgit v0.10.2 From 96b5bd777118bb673b458b41bbefc7f0f31d65c9 Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Mon, 15 Oct 2012 08:30:45 +0000 Subject: Btrfs: extended inode refs support for send mechanism This adds support for the new extended inode refs to btrfs send. Signed-off-by: Jan Schmidt diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index 2bcbea3..b8b6926 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -1177,11 +1177,10 @@ int btrfs_find_one_extref(struct btrfs_root *root, u64 inode_objectid, return ret; } -static char *ref_to_path(struct btrfs_root *fs_root, - struct btrfs_path *path, - u32 name_len, unsigned long name_off, - struct extent_buffer *eb_in, u64 parent, - char *dest, u32 size) +char *btrfs_ref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path, + u32 name_len, unsigned long name_off, + struct extent_buffer *eb_in, u64 parent, + char *dest, u32 size) { int slot; u64 next_inum; @@ -1266,10 +1265,10 @@ char *btrfs_iref_to_path(struct btrfs_root *fs_root, struct extent_buffer *eb_in, u64 parent, char *dest, u32 size) { - return ref_to_path(fs_root, path, - btrfs_inode_ref_name_len(eb_in, iref), - (unsigned long)(iref + 1), - eb_in, parent, dest, size); + return btrfs_ref_to_path(fs_root, path, + btrfs_inode_ref_name_len(eb_in, iref), + (unsigned long)(iref + 1), + eb_in, parent, dest, size); } /* @@ -1715,9 +1714,8 @@ static int inode_to_path(u64 inum, u32 name_len, unsigned long name_off, ipath->fspath->bytes_left - s_ptr : 0; fspath_min = (char *)ipath->fspath->val + (i + 1) * s_ptr; - fspath = ref_to_path(ipath->fs_root, ipath->btrfs_path, name_len, - name_off, eb, inum, fspath_min, - bytes_left); + fspath = btrfs_ref_to_path(ipath->fs_root, ipath->btrfs_path, name_len, + name_off, eb, inum, fspath_min, bytes_left); if (IS_ERR(fspath)) return PTR_ERR(fspath); diff --git a/fs/btrfs/backref.h b/fs/btrfs/backref.h index e755330..d61feca7 100644 --- a/fs/btrfs/backref.h +++ b/fs/btrfs/backref.h @@ -62,6 +62,10 @@ int btrfs_find_all_roots(struct btrfs_trans_handle *trans, char *btrfs_iref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path, struct btrfs_inode_ref *iref, struct extent_buffer *eb, u64 parent, char *dest, u32 size); +char *btrfs_ref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path, + u32 name_len, unsigned long name_off, + struct extent_buffer *eb_in, u64 parent, + char *dest, u32 size); struct btrfs_data_container *init_data_container(u32 total_bytes); struct inode_fs_paths *init_ipath(s32 total_bytes, struct btrfs_root *fs_root, diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index c7beb54..4f20c49 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -745,31 +745,36 @@ typedef int (*iterate_inode_ref_t)(int num, u64 dir, int index, void *ctx); /* - * Helper function to iterate the entries in ONE btrfs_inode_ref. + * Helper function to iterate the entries in ONE btrfs_inode_ref or + * btrfs_inode_extref. * The iterate callback may return a non zero value to stop iteration. This can * be a negative value for error codes or 1 to simply stop it. * - * path must point to the INODE_REF when called. + * path must point to the INODE_REF or INODE_EXTREF when called. */ static int iterate_inode_ref(struct send_ctx *sctx, struct btrfs_root *root, struct btrfs_path *path, struct btrfs_key *found_key, int resolve, iterate_inode_ref_t iterate, void *ctx) { - struct extent_buffer *eb; + struct extent_buffer *eb = path->nodes[0]; struct btrfs_item *item; struct btrfs_inode_ref *iref; + struct btrfs_inode_extref *extref; struct btrfs_path *tmp_path; struct fs_path *p; - u32 cur; - u32 len; + u32 cur = 0; u32 total; - int slot; + int slot = path->slots[0]; u32 name_len; char *start; int ret = 0; - int num; + int num = 0; int index; + u64 dir; + unsigned long name_off; + unsigned long elem_size; + unsigned long ptr; p = fs_path_alloc_reversed(sctx); if (!p) @@ -781,24 +786,40 @@ static int iterate_inode_ref(struct send_ctx *sctx, return -ENOMEM; } - eb = path->nodes[0]; - slot = path->slots[0]; - item = btrfs_item_nr(eb, slot); - iref = btrfs_item_ptr(eb, slot, struct btrfs_inode_ref); - cur = 0; - len = 0; - total = btrfs_item_size(eb, item); - num = 0; + if (found_key->type == BTRFS_INODE_REF_KEY) { + ptr = (unsigned long)btrfs_item_ptr(eb, slot, + struct btrfs_inode_ref); + item = btrfs_item_nr(eb, slot); + total = btrfs_item_size(eb, item); + elem_size = sizeof(*iref); + } else { + ptr = btrfs_item_ptr_offset(eb, slot); + total = btrfs_item_size_nr(eb, slot); + elem_size = sizeof(*extref); + } + while (cur < total) { fs_path_reset(p); - name_len = btrfs_inode_ref_name_len(eb, iref); - index = btrfs_inode_ref_index(eb, iref); + if (found_key->type == BTRFS_INODE_REF_KEY) { + iref = (struct btrfs_inode_ref *)(ptr + cur); + name_len = btrfs_inode_ref_name_len(eb, iref); + name_off = (unsigned long)(iref + 1); + index = btrfs_inode_ref_index(eb, iref); + dir = found_key->offset; + } else { + extref = (struct btrfs_inode_extref *)(ptr + cur); + name_len = btrfs_inode_extref_name_len(eb, extref); + name_off = (unsigned long)&extref->name; + index = btrfs_inode_extref_index(eb, extref); + dir = btrfs_inode_extref_parent(eb, extref); + } + if (resolve) { - start = btrfs_iref_to_path(root, tmp_path, iref, eb, - found_key->offset, p->buf, - p->buf_len); + start = btrfs_ref_to_path(root, tmp_path, name_len, + name_off, eb, dir, + p->buf, p->buf_len); if (IS_ERR(start)) { ret = PTR_ERR(start); goto out; @@ -809,9 +830,10 @@ static int iterate_inode_ref(struct send_ctx *sctx, p->buf_len + p->buf - start); if (ret < 0) goto out; - start = btrfs_iref_to_path(root, tmp_path, iref, - eb, found_key->offset, p->buf, - p->buf_len); + start = btrfs_ref_to_path(root, tmp_path, + name_len, name_off, + eb, dir, + p->buf, p->buf_len); if (IS_ERR(start)) { ret = PTR_ERR(start); goto out; @@ -820,21 +842,16 @@ static int iterate_inode_ref(struct send_ctx *sctx, } p->start = start; } else { - ret = fs_path_add_from_extent_buffer(p, eb, - (unsigned long)(iref + 1), name_len); + ret = fs_path_add_from_extent_buffer(p, eb, name_off, + name_len); if (ret < 0) goto out; } - - len = sizeof(*iref) + name_len; - iref = (struct btrfs_inode_ref *)((char *)iref + len); - cur += len; - - ret = iterate(num, found_key->offset, index, p, ctx); + cur += elem_size + name_len; + ret = iterate(num, dir, index, p, ctx); if (ret) goto out; - num++; } @@ -998,7 +1015,8 @@ static int get_inode_path(struct send_ctx *sctx, struct btrfs_root *root, } btrfs_item_key_to_cpu(p->nodes[0], &found_key, p->slots[0]); if (found_key.objectid != ino || - found_key.type != BTRFS_INODE_REF_KEY) { + (found_key.type != BTRFS_INODE_REF_KEY && + found_key.type != BTRFS_INODE_EXTREF_KEY)) { ret = -ENOENT; goto out; } @@ -1551,8 +1569,8 @@ static int get_first_ref(struct send_ctx *sctx, struct btrfs_key key; struct btrfs_key found_key; struct btrfs_path *path; - struct btrfs_inode_ref *iref; int len; + u64 parent_dir; path = alloc_path_for_send(); if (!path) @@ -1568,27 +1586,41 @@ static int get_first_ref(struct send_ctx *sctx, if (!ret) btrfs_item_key_to_cpu(path->nodes[0], &found_key, path->slots[0]); - if (ret || found_key.objectid != key.objectid || - found_key.type != key.type) { + if (ret || found_key.objectid != ino || + (found_key.type != BTRFS_INODE_REF_KEY && + found_key.type != BTRFS_INODE_EXTREF_KEY)) { ret = -ENOENT; goto out; } - iref = btrfs_item_ptr(path->nodes[0], path->slots[0], - struct btrfs_inode_ref); - len = btrfs_inode_ref_name_len(path->nodes[0], iref); - ret = fs_path_add_from_extent_buffer(name, path->nodes[0], - (unsigned long)(iref + 1), len); + if (key.type == BTRFS_INODE_REF_KEY) { + struct btrfs_inode_ref *iref; + iref = btrfs_item_ptr(path->nodes[0], path->slots[0], + struct btrfs_inode_ref); + len = btrfs_inode_ref_name_len(path->nodes[0], iref); + ret = fs_path_add_from_extent_buffer(name, path->nodes[0], + (unsigned long)(iref + 1), + len); + parent_dir = found_key.offset; + } else { + struct btrfs_inode_extref *extref; + extref = btrfs_item_ptr(path->nodes[0], path->slots[0], + struct btrfs_inode_extref); + len = btrfs_inode_extref_name_len(path->nodes[0], extref); + ret = fs_path_add_from_extent_buffer(name, path->nodes[0], + (unsigned long)&extref->name, len); + parent_dir = btrfs_inode_extref_parent(path->nodes[0], extref); + } if (ret < 0) goto out; btrfs_release_path(path); - ret = get_inode_info(root, found_key.offset, NULL, dir_gen, NULL, NULL, + ret = get_inode_info(root, parent_dir, NULL, dir_gen, NULL, NULL, NULL, NULL); if (ret < 0) goto out; - *dir = found_key.offset; + *dir = parent_dir; out: btrfs_free_path(path); @@ -3226,7 +3258,8 @@ static int process_all_refs(struct send_ctx *sctx, btrfs_item_key_to_cpu(eb, &found_key, slot); if (found_key.objectid != key.objectid || - found_key.type != key.type) + (found_key.type != BTRFS_INODE_REF_KEY && + found_key.type != BTRFS_INODE_EXTREF_KEY)) break; ret = iterate_inode_ref(sctx, root, path, &found_key, 0, cb, @@ -3987,7 +4020,7 @@ static int process_recorded_refs_if_needed(struct send_ctx *sctx, int at_end) if (sctx->cur_ino == 0) goto out; if (!at_end && sctx->cur_ino == sctx->cmp_key->objectid && - sctx->cmp_key->type <= BTRFS_INODE_REF_KEY) + sctx->cmp_key->type <= BTRFS_INODE_EXTREF_KEY) goto out; if (list_empty(&sctx->new_refs) && list_empty(&sctx->deleted_refs)) goto out; @@ -4335,7 +4368,8 @@ static int changed_cb(struct btrfs_root *left_root, if (key->type == BTRFS_INODE_ITEM_KEY) ret = changed_inode(sctx, result); - else if (key->type == BTRFS_INODE_REF_KEY) + else if (key->type == BTRFS_INODE_REF_KEY || + key->type == BTRFS_INODE_EXTREF_KEY) ret = changed_ref(sctx, result); else if (key->type == BTRFS_XATTR_ITEM_KEY) ret = changed_xattr(sctx, result); -- cgit v0.10.2 From d79e50433b2bea09eb680ed5fae15e8a12356353 Mon Sep 17 00:00:00 2001 From: Arne Jansen Date: Mon, 15 Oct 2012 18:28:46 +0000 Subject: Btrfs: send correct rdev and mode in btrfs-send When sending a device file, the stream was missing the mode. Also the rdev was encoded wrongly. Signed-off-by: Arne Jansen diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index 4f20c49..97cc539 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -2462,7 +2462,8 @@ verbose_printk("btrfs: send_create_inode %llu\n", ino); TLV_PUT_PATH(sctx, BTRFS_SEND_A_PATH_LINK, p); } else if (S_ISCHR(mode) || S_ISBLK(mode) || S_ISFIFO(mode) || S_ISSOCK(mode)) { - TLV_PUT_U64(sctx, BTRFS_SEND_A_RDEV, rdev); + TLV_PUT_U64(sctx, BTRFS_SEND_A_RDEV, new_encode_dev(rdev)); + TLV_PUT_U64(sctx, BTRFS_SEND_A_MODE, mode); } ret = send_cmd(sctx); -- cgit v0.10.2 From 5b7ff5b3c4468780b15c6b20cd0567cd9f2aa626 Mon Sep 17 00:00:00 2001 From: Tsutomu Itoh Date: Tue, 16 Oct 2012 05:44:21 +0000 Subject: Btrfs: fix memory leak in btrfs_quota_enable() We should free quota_root before returning from the error handling code. Signed-off-by: Tsutomu Itoh diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index 5039686..fe9d02c 100644 --- a/fs/btrfs/qgroup.c +++ b/fs/btrfs/qgroup.c @@ -790,8 +790,10 @@ int btrfs_quota_enable(struct btrfs_trans_handle *trans, } path = btrfs_alloc_path(); - if (!path) - return -ENOMEM; + if (!path) { + ret = -ENOMEM; + goto out_free_root; + } key.objectid = 0; key.type = BTRFS_QGROUP_STATUS_KEY; @@ -800,7 +802,7 @@ int btrfs_quota_enable(struct btrfs_trans_handle *trans, ret = btrfs_insert_empty_item(trans, quota_root, path, &key, sizeof(*ptr)); if (ret) - goto out; + goto out_free_path; leaf = path->nodes[0]; ptr = btrfs_item_ptr(leaf, path->slots[0], @@ -818,8 +820,15 @@ int btrfs_quota_enable(struct btrfs_trans_handle *trans, fs_info->quota_root = quota_root; fs_info->pending_quota_state = 1; spin_unlock(&fs_info->qgroup_lock); -out: +out_free_path: btrfs_free_path(path); +out_free_root: + if (ret) { + free_extent_buffer(quota_root->node); + free_extent_buffer(quota_root->commit_root); + kfree(quota_root); + } +out: return ret; } -- cgit v0.10.2 From e515c18bfef718a7900924d50198d968565dd60e Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Tue, 16 Oct 2012 09:34:36 +0000 Subject: btrfs: Return EINVAL when length to trim is less than FSB Currently if len argument in btrfs_ioctl_fitrim() is smaller than one FSB we will continue and finally return 0 bytes discarded. However if the length to discard is smaller then file system block we should really return EINVAL. Signed-off-by: Lukas Czerner diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index f5a2e6c..da518de 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -343,7 +343,8 @@ static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg) return -EOPNOTSUPP; if (copy_from_user(&range, arg, sizeof(range))) return -EFAULT; - if (range.start > total_bytes) + if (range.start > total_bytes || + range.len < fs_info->sb->s_blocksize) return -EINVAL; range.len = min(range.len, total_bytes - range.start); -- cgit v0.10.2 From 671415b7db49f62896f0b6d50fc4f312a0512983 Mon Sep 17 00:00:00 2001 From: Miao Xie Date: Tue, 16 Oct 2012 11:26:46 +0000 Subject: Btrfs: fix deadlock caused by the nested chunk allocation Steps to reproduce: # mkfs.btrfs -m raid1 # btrfstune -S 1 # mount # btrfs device add # mount -o remount,rw # dd if=/dev/zero of=/tmpfile bs=1M count=1 Deadlock happened. It is because of the nested chunk allocation. When we wrote the data into the filesystem, we would allocate the data chunk because there was no data chunk in the filesystem. At the end of the data chunk allocation, we should insert the metadata of the data chunk into the extent tree, but there was no raid1 chunk, so we tried to lock the chunk allocation mutex to allocate the new chunk, but we had held the mutex, the deadlock happened. By rights, we would allocate the raid1 chunk when we added the second device because the profile of the seed filesystem is raid1 and we had two devices. But we didn't do that in fact. It is because the last step of the first device insertion didn't commit the transaction. So when we added the second device, we didn't cow the tree, and just inserted the relative metadata into the leaves which were generated by the first device insertion, and its profile was dup. So, I fix this problem by commiting the transaction at the end of the first device insertion. Signed-off-by: Miao Xie diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 029b903..0f5ebb7 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1819,6 +1819,13 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path) "Failed to relocate sys chunks after " "device initialization. This can be fixed " "using the \"btrfs balance\" command."); + trans = btrfs_attach_transaction(root); + if (IS_ERR(trans)) { + if (PTR_ERR(trans) == -ENOENT) + return 0; + return PTR_ERR(trans); + } + ret = btrfs_commit_transaction(trans, root); } return ret; -- cgit v0.10.2 From e2d044fe77f8e845333bb1bd29587dc08a4346a0 Mon Sep 17 00:00:00 2001 From: Alex Lyakas Date: Wed, 17 Oct 2012 13:52:47 +0000 Subject: Btrfs: Send: preserve ownership (uid and gid) also for symlinks. This patch also requires a change in the user-space part of "receive". We need to use "lchown" instead of "chown". We will do this in the following patch. Signed-off-by: Alex Lyakas if (S_ISREG(sctx->cur_inode_mode)) { diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index 97cc539..e78b297 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -4067,22 +4067,21 @@ static int finish_inode_if_needed(struct send_ctx *sctx, int at_end) if (ret < 0) goto out; - if (!S_ISLNK(sctx->cur_inode_mode)) { - if (!sctx->parent_root || sctx->cur_inode_new) { + if (!sctx->parent_root || sctx->cur_inode_new) { + need_chown = 1; + if (!S_ISLNK(sctx->cur_inode_mode)) need_chmod = 1; - need_chown = 1; - } else { - ret = get_inode_info(sctx->parent_root, sctx->cur_ino, - NULL, NULL, &right_mode, &right_uid, - &right_gid, NULL); - if (ret < 0) - goto out; + } else { + ret = get_inode_info(sctx->parent_root, sctx->cur_ino, + NULL, NULL, &right_mode, &right_uid, + &right_gid, NULL); + if (ret < 0) + goto out; - if (left_uid != right_uid || left_gid != right_gid) - need_chown = 1; - if (left_mode != right_mode) - need_chmod = 1; - } + if (left_uid != right_uid || left_gid != right_gid) + need_chown = 1; + if (!S_ISLNK(sctx->cur_inode_mode) && left_mode != right_mode) + need_chmod = 1; } if (S_ISREG(sctx->cur_inode_mode)) { -- cgit v0.10.2 From be6aef604920406b348acf3be6e6e8db55696386 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Mon, 22 Oct 2012 15:43:12 -0400 Subject: Btrfs: Use btrfs_update_inode_fallback when creating a snapshot On a really full file system I was getting ENOSPC back from btrfs_update_inode when trying to update the parent inode when creating a snapshot. Just use the fallback method so we can update the inode and not have to worry about having a delayed ref. Thanks, Signed-off-by: Josef Bacik diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 1630be8..8a92ab1 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3338,6 +3338,8 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page, int btrfs_update_inode(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct inode *inode); +int btrfs_update_inode_fallback(struct btrfs_trans_handle *trans, + struct btrfs_root *root, struct inode *inode); int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode); int btrfs_orphan_del(struct btrfs_trans_handle *trans, struct inode *inode); int btrfs_orphan_cleanup(struct btrfs_root *root); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index f92def2..5fc0990 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -94,8 +94,6 @@ static noinline int cow_file_range(struct inode *inode, struct page *locked_page, u64 start, u64 end, int *page_started, unsigned long *nr_written, int unlock); -static noinline int btrfs_update_inode_fallback(struct btrfs_trans_handle *trans, - struct btrfs_root *root, struct inode *inode); static int btrfs_init_inode_security(struct btrfs_trans_handle *trans, struct inode *inode, struct inode *dir, @@ -2746,8 +2744,9 @@ noinline int btrfs_update_inode(struct btrfs_trans_handle *trans, return btrfs_update_inode_item(trans, root, inode); } -static noinline int btrfs_update_inode_fallback(struct btrfs_trans_handle *trans, - struct btrfs_root *root, struct inode *inode) +noinline int btrfs_update_inode_fallback(struct btrfs_trans_handle *trans, + struct btrfs_root *root, + struct inode *inode) { int ret; diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 77db875..04bbfb1 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -1200,7 +1200,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, btrfs_i_size_write(parent_inode, parent_inode->i_size + dentry->d_name.len * 2); parent_inode->i_mtime = parent_inode->i_ctime = CURRENT_TIME; - ret = btrfs_update_inode(trans, parent_root, parent_inode); + ret = btrfs_update_inode_fallback(trans, parent_root, parent_inode); if (ret) btrfs_abort_transaction(trans, root, ret); fail: -- cgit v0.10.2 From f7fbf70ee9db6da6033ae50d100e017ac1f26555 Mon Sep 17 00:00:00 2001 From: Javier Cardona Date: Thu, 25 Oct 2012 11:10:18 -0700 Subject: mac80211: don't inspect Sequence Control field on control frames Per IEEE Std. 802.11-2012, Sec 8.2.4.4.1, the sequence Control field is not present in control frames. We noticed this problem when processing Block Ack Requests. Cc: stable@vger.kernel.org Signed-off-by: Javier Cardona Signed-off-by: Javier Lopez Signed-off-by: Johannes Berg diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index f73e0dd..c6865f2 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1462,6 +1462,10 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) hdr = (struct ieee80211_hdr *)rx->skb->data; fc = hdr->frame_control; + + if (ieee80211_is_ctl(fc)) + return RX_CONTINUE; + sc = le16_to_cpu(hdr->seq_ctrl); frag = sc & IEEE80211_SCTL_FRAG; -- cgit v0.10.2 From 7bfdcf7fbad56c0f1fc3e2d26431bed72bdcce2d Mon Sep 17 00:00:00 2001 From: Liu Bo Date: Thu, 25 Oct 2012 07:30:19 -0600 Subject: Btrfs: fix memory leak when cloning root's node After cloning root's node, we forgot to dec the src's ref which can lead to a memory leak. Signed-off-by: Liu Bo Signed-off-by: Chris Mason diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index eba44b0..cdfb4c4 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1241,6 +1241,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq) { struct tree_mod_elem *tm; struct extent_buffer *eb; + struct extent_buffer *old; struct tree_mod_root *old_root = NULL; u64 old_generation = 0; u64 logical; @@ -1264,13 +1265,14 @@ get_old_root(struct btrfs_root *root, u64 time_seq) btrfs_tree_read_unlock(root->node); free_extent_buffer(root->node); blocksize = btrfs_level_size(root, old_root->level); - eb = read_tree_block(root, logical, blocksize, 0); - if (!eb) { + old = read_tree_block(root, logical, blocksize, 0); + if (!old) { pr_warn("btrfs: failed to read tree block %llu from get_old_root\n", logical); WARN_ON(1); } else { - eb = btrfs_clone_extent_buffer(eb); + eb = btrfs_clone_extent_buffer(old); + free_extent_buffer(old); } } else if (old_root) { btrfs_tree_read_unlock(root->node); -- cgit v0.10.2 From 975927b942c932bd839ed07e5d40b4037d816844 Mon Sep 17 00:00:00 2001 From: Jianpeng Ma Date: Thu, 25 Oct 2012 21:58:17 +0200 Subject: block: Add blk_rq_pos(rq) to sort rq when plushing My workload is a raid5 which had 16 disks. And used our filesystem to write using direct-io mode. I used the blktrace to find those message: 8,16 0 6647 2.453665504 2579 M W 7493152 + 8 [md0_raid5] 8,16 0 6648 2.453672411 2579 Q W 7493160 + 8 [md0_raid5] 8,16 0 6649 2.453672606 2579 M W 7493160 + 8 [md0_raid5] 8,16 0 6650 2.453679255 2579 Q W 7493168 + 8 [md0_raid5] 8,16 0 6651 2.453679441 2579 M W 7493168 + 8 [md0_raid5] 8,16 0 6652 2.453685948 2579 Q W 7493176 + 8 [md0_raid5] 8,16 0 6653 2.453686149 2579 M W 7493176 + 8 [md0_raid5] 8,16 0 6654 2.453693074 2579 Q W 7493184 + 8 [md0_raid5] 8,16 0 6655 2.453693254 2579 M W 7493184 + 8 [md0_raid5] 8,16 0 6656 2.453704290 2579 Q W 7493192 + 8 [md0_raid5] 8,16 0 6657 2.453704482 2579 M W 7493192 + 8 [md0_raid5] 8,16 0 6658 2.453715016 2579 Q W 7493200 + 8 [md0_raid5] 8,16 0 6659 2.453715247 2579 M W 7493200 + 8 [md0_raid5] 8,16 0 6660 2.453721730 2579 Q W 7493208 + 8 [md0_raid5] 8,16 0 6661 2.453721974 2579 M W 7493208 + 8 [md0_raid5] 8,16 0 6662 2.453728202 2579 Q W 7493216 + 8 [md0_raid5] 8,16 0 6663 2.453728436 2579 M W 7493216 + 8 [md0_raid5] 8,16 0 6664 2.453734782 2579 Q W 7493224 + 8 [md0_raid5] 8,16 0 6665 2.453735019 2579 M W 7493224 + 8 [md0_raid5] 8,16 0 6666 2.453741401 2579 Q W 7493232 + 8 [md0_raid5] 8,16 0 6667 2.453741632 2579 M W 7493232 + 8 [md0_raid5] 8,16 0 6668 2.453748148 2579 Q W 7493240 + 8 [md0_raid5] 8,16 0 6669 2.453748386 2579 M W 7493240 + 8 [md0_raid5] 8,16 0 6670 2.453851843 2579 I W 7493144 + 104 [md0_raid5] 8,16 0 0 2.453853661 0 m N cfq2579 insert_request 8,16 0 6671 2.453854064 2579 I W 7493120 + 24 [md0_raid5] 8,16 0 0 2.453854439 0 m N cfq2579 insert_request 8,16 0 6672 2.453854793 2579 U N [md0_raid5] 2 8,16 0 0 2.453855513 0 m N cfq2579 Not idling.st->count:1 8,16 0 0 2.453855927 0 m N cfq2579 dispatch_insert 8,16 0 0 2.453861771 0 m N cfq2579 dispatched a request 8,16 0 0 2.453862248 0 m N cfq2579 activate rq,drv=1 8,16 0 6673 2.453862332 2579 D W 7493120 + 24 [md0_raid5] 8,16 0 0 2.453865957 0 m N cfq2579 Not idling.st->count:1 8,16 0 0 2.453866269 0 m N cfq2579 dispatch_insert 8,16 0 0 2.453866707 0 m N cfq2579 dispatched a request 8,16 0 0 2.453867061 0 m N cfq2579 activate rq,drv=2 8,16 0 6674 2.453867145 2579 D W 7493144 + 104 [md0_raid5] 8,16 0 6675 2.454147608 0 C W 7493120 + 24 [0] 8,16 0 0 2.454149357 0 m N cfq2579 complete rqnoidle 0 8,16 0 6676 2.454791505 0 C W 7493144 + 104 [0] 8,16 0 0 2.454794803 0 m N cfq2579 complete rqnoidle 0 8,16 0 0 2.454795160 0 m N cfq schedule dispatch From above messages,we can find rq[W 7493144 + 104] and rq[W 7493120 + 24] do not merge. Because the bio order is: 8,16 0 6638 2.453619407 2579 Q W 7493144 + 8 [md0_raid5] 8,16 0 6639 2.453620460 2579 G W 7493144 + 8 [md0_raid5] 8,16 0 6640 2.453639311 2579 Q W 7493120 + 8 [md0_raid5] 8,16 0 6641 2.453639842 2579 G W 7493120 + 8 [md0_raid5] The bio(7493144) first and bio(7493120) later.So the subsequent bios will be divided into two parts. When flushing plug-list,because elv_attempt_insert_merge only support backmerge,not supporting frontmerge. So rq[7493120 + 24] can't merge with rq[7493144 + 104]. From my test,i found those situation can count 25% in our system. Using this patch, there is no this situation. Signed-off-by: Jianpeng Ma CC:Shaohua Li Signed-off-by: Jens Axboe diff --git a/block/blk-core.c b/block/blk-core.c index a33870b..3c95c4d 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -2868,7 +2868,8 @@ static int plug_rq_cmp(void *priv, struct list_head *a, struct list_head *b) struct request *rqa = container_of(a, struct request, queuelist); struct request *rqb = container_of(b, struct request, queuelist); - return !(rqa->q <= rqb->q); + return !(rqa->q < rqb->q || + (rqa->q == rqb->q && blk_rq_pos(rqa) < blk_rq_pos(rqb))); } /* -- cgit v0.10.2 From c37b2b6269ee4637fb7cdb5da0d1e47215d57ce2 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Mon, 22 Oct 2012 15:51:44 -0400 Subject: Btrfs: do not bug when we fail to commit the transaction We BUG if we fail to commit the transaction when creating a snapshot, which is just obnoxious. Remove the BUG_ON(). Thanks, Signed-off-by: Josef Bacik diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index da518de..84bb4de 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -571,7 +571,8 @@ static int create_snapshot(struct btrfs_root *root, struct dentry *dentry, ret = btrfs_commit_transaction(trans, root->fs_info->extent_root); } - BUG_ON(ret); + if (ret) + goto fail; ret = pending_snapshot->error; if (ret) -- cgit v0.10.2 From f4221a7a63abd1b6e358d19fe4d05e4d2e44e11a Mon Sep 17 00:00:00 2001 From: Eric Millbrandt Date: Mon, 24 Sep 2012 12:16:47 +0000 Subject: powerpc/pcm030: add pcm030-audio-fabric to dts Add a node for the pcm030-audio-fabric ASoC driver Signed-off-by: Eric Millbrandt Signed-off-by: Anatolij Gustschin diff --git a/arch/powerpc/boot/dts/pcm030.dts b/arch/powerpc/boot/dts/pcm030.dts index 9e35499..96512c0 100644 --- a/arch/powerpc/boot/dts/pcm030.dts +++ b/arch/powerpc/boot/dts/pcm030.dts @@ -59,7 +59,7 @@ #gpio-cells = <2>; }; - psc@2000 { /* PSC1 in ac97 mode */ + audioplatform: psc@2000 { /* PSC1 in ac97 mode */ compatible = "mpc5200b-psc-ac97","fsl,mpc5200b-psc-ac97"; cell-index = <0>; }; @@ -134,4 +134,9 @@ localbus { status = "disabled"; }; + + sound { + compatible = "phytec,pcm030-audio-fabric"; + asoc-platform = <&audioplatform>; + }; }; -- cgit v0.10.2 From e34298c9a29a4b5bdcbb9a8994cc61f6ba506a94 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Wed, 10 Oct 2012 23:19:15 +0000 Subject: powerpc: 52xx: nop out unsupported critical IRQs Currently, when booting MPC52xx based platforms, we get: mpc52xx_irqhost_map: invalid irq: virq=16, l1=0, l2=3 irq: irq-16==>hwirq-0x3 mapping failed: -22 [WARNing skipped] The warning is wrong since the mapping itself is valid. However, there is no support for that type of IRQ currently. Print a proper warning and bind the irq to a no_irq chip. Signed-off-by: Wolfram Sang Cc: John Bonesio Cc: Anatolij Gustschin Cc: Grant Likely Signed-off-by: Anatolij Gustschin diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.c b/arch/powerpc/platforms/52xx/mpc52xx_pic.c index 8520b58..b89ef65 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_pic.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_pic.c @@ -372,10 +372,11 @@ static int mpc52xx_irqhost_map(struct irq_domain *h, unsigned int virq, case MPC52xx_IRQ_L1_MAIN: irqchip = &mpc52xx_main_irqchip; break; case MPC52xx_IRQ_L1_PERP: irqchip = &mpc52xx_periph_irqchip; break; case MPC52xx_IRQ_L1_SDMA: irqchip = &mpc52xx_sdma_irqchip; break; - default: - pr_err("%s: invalid irq: virq=%i, l1=%i, l2=%i\n", - __func__, virq, l1irq, l2irq); - return -EINVAL; + case MPC52xx_IRQ_L1_CRIT: + pr_warn("%s: Critical IRQ #%d is unsupported! Nopping it.\n", + __func__, l2irq); + irq_set_chip(virq, &no_irq_chip); + return 0; } irq_set_chip_and_handler(virq, irqchip, handle_level_irq); -- cgit v0.10.2 From 7dfb736ec9917883fc9cfe6d0081987b8b110afe Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Fri, 5 Oct 2012 10:23:10 +0000 Subject: powerpc/mpc5200: move lpbfifo node and fix its interrupt property The LPB FIFO interrupt is a peripheral interrupt, thus its L1 cell has to be 2 instead of 3. Fix it and while at it, move the lpbfifo node to the common dtsi file. This patch fixes the irqdomain warning: ... WARNING: at kernel/irq/irqdomain.c:766 Modules linked in: NIP: c00587fc LR: c0058e0c CTR: c0014e54 REGS: c7837c10 TRAP: 0700 Tainted: G W (3.7.0-rc1-00003-g6e51414) MSR: 00029032 CR: 82cd8322 XER: 00000000 TASK = c7834000[1] 'swapper' THREAD: c7836000 GPR00: 00000001 c7837cc0 c7834000 c7806080 000000d7 c7837d20 00000003 c7837cec GPR08: c7837ce8 00000000 00000000 00000008 82cd3342 00000000 c0003f88 00000000 GPR16: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c7850ec0 GPR24: c782b010 00000000 00000001 c7852900 00000003 c7df5be0 c7806080 000000d7 NIP [c00587fc] irq_linear_revmap+0x2c/0x4c LR [c0058e0c] irq_create_mapping+0x28/0x124 Reported-by: Stefan Roese Signed-off-by: Anatolij Gustschin diff --git a/arch/powerpc/boot/dts/mpc5200b.dtsi b/arch/powerpc/boot/dts/mpc5200b.dtsi index 7ab286a..39ed65a 100644 --- a/arch/powerpc/boot/dts/mpc5200b.dtsi +++ b/arch/powerpc/boot/dts/mpc5200b.dtsi @@ -231,6 +231,12 @@ interrupts = <2 7 0>; }; + sclpc@3c00 { + compatible = "fsl,mpc5200-lpbfifo"; + reg = <0x3c00 0x60>; + interrupts = <2 23 0>; + }; + i2c@3d00 { #address-cells = <1>; #size-cells = <0>; diff --git a/arch/powerpc/boot/dts/o2d.dtsi b/arch/powerpc/boot/dts/o2d.dtsi index 3444eb8..24f6680 100644 --- a/arch/powerpc/boot/dts/o2d.dtsi +++ b/arch/powerpc/boot/dts/o2d.dtsi @@ -86,12 +86,6 @@ reg = <0>; }; }; - - sclpc@3c00 { - compatible = "fsl,mpc5200-lpbfifo"; - reg = <0x3c00 0x60>; - interrupts = <3 23 0>; - }; }; localbus { -- cgit v0.10.2 From 43a09f7fb01fa1e091416a2aa49b6c666458c1ee Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Tue, 16 Oct 2012 13:17:43 -0700 Subject: xhci: Fix potential NULL ptr deref in command cancellation. The command cancellation code doesn't check whether find_trb_seg() couldn't find the segment that contains the TRB to be canceled. This could cause a NULL pointer deference later in the function when next_trb is called. It's unlikely to happen unless something is wrong with the command ring pointers, so add some debugging in case it happens. This patch should be backported to stable kernels as old as 3.0, that contain the commit b63f4053cc8aa22a98e3f9a97845afe6c15d0a0d "xHCI: handle command after aborting the command ring". Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index c6ebb17..4e1a894 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1228,6 +1228,17 @@ static void xhci_cmd_to_noop(struct xhci_hcd *xhci, struct xhci_cd *cur_cd) cur_seg = find_trb_seg(xhci->cmd_ring->first_seg, xhci->cmd_ring->dequeue, &cycle_state); + if (!cur_seg) { + xhci_warn(xhci, "Command ring mismatch, dequeue = %p %llx (dma)\n", + xhci->cmd_ring->dequeue, + (unsigned long long) + xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg, + xhci->cmd_ring->dequeue)); + xhci_debug_ring(xhci, xhci->cmd_ring); + xhci_dbg_ring_ptrs(xhci, xhci->cmd_ring); + return; + } + /* find the command trb matched by cd from command ring */ for (cmd_trb = xhci->cmd_ring->dequeue; cmd_trb != xhci->cmd_ring->enqueue; -- cgit v0.10.2 From b80313422a1551cc1d4f3e2d532fe633154ae5dd Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Tue, 16 Oct 2012 13:26:22 -0700 Subject: xhci: Fix missing break in xhci_evaluate_context_result. Coverity complains that xhci_evaluate_context_result() is missing a break statement after the COMP_EBADSLT switch case. It's not a big deal, since we wanted to return the same error code as the case statement below it does. The end result would be one that a Slot Disabled error completion code would also print the warning message associated with a Context State error code. No other bad behavior would result. It's not worth backporting to stable kernels, since it only fixes an issue with too much debugging. Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 9ec9396..ffe2e2e 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1817,6 +1817,8 @@ static int xhci_evaluate_context_result(struct xhci_hcd *xhci, case COMP_EBADSLT: dev_warn(&udev->dev, "WARN: slot not enabled for" "evaluate context command.\n"); + ret = -EINVAL; + break; case COMP_CTX_STATE: dev_warn(&udev->dev, "WARN: invalid context state for " "evaluate context command.\n"); -- cgit v0.10.2 From 7e5f77f9bc30cb5338802df184b26d1365afca09 Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Tue, 16 Oct 2012 13:33:45 -0700 Subject: xhci: trivial: Remove assigned but unused slot_ctx. Remove the variable slot_ctx from xhci_dbg_ctx(), since it is assigned but unused. Caught by Coverity. Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c index 4b436f5..5f3a7c7 100644 --- a/drivers/usb/host/xhci-dbg.c +++ b/drivers/usb/host/xhci-dbg.c @@ -544,7 +544,6 @@ void xhci_dbg_ctx(struct xhci_hcd *xhci, int i; /* Fields are 32 bits wide, DMA addresses are in bytes */ int field_size = 32 / 8; - struct xhci_slot_ctx *slot_ctx; dma_addr_t dma = ctx->dma; int csz = HCC_64BYTE_CONTEXT(xhci->hcc_params); @@ -570,7 +569,6 @@ void xhci_dbg_ctx(struct xhci_hcd *xhci, dbg_rsvd64(xhci, (u64 *)ctrl_ctx, dma); } - slot_ctx = xhci_get_slot_ctx(xhci, ctx); xhci_dbg_slot_ctx(xhci, ctx); xhci_dbg_ep_ctx(xhci, ctx, last_ep); } -- cgit v0.10.2 From df0379065b3850cd42447b59578a2f9362047487 Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Tue, 16 Oct 2012 13:33:45 -0700 Subject: xhci: trivial: Remove assigned but unused ep_ctx. Remove the variable ep_ctx from xhci_add_endpoint(), since it is assigned but unused. Caught by Coverity. Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index ffe2e2e..c9e419f 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1627,7 +1627,6 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev, struct xhci_hcd *xhci; struct xhci_container_ctx *in_ctx, *out_ctx; unsigned int ep_index; - struct xhci_ep_ctx *ep_ctx; struct xhci_slot_ctx *slot_ctx; struct xhci_input_control_ctx *ctrl_ctx; u32 added_ctxs; @@ -1663,7 +1662,6 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev, out_ctx = virt_dev->out_ctx; ctrl_ctx = xhci_get_input_control_ctx(xhci, in_ctx); ep_index = xhci_get_endpoint_index(&ep->desc); - ep_ctx = xhci_get_ep_ctx(xhci, out_ctx, ep_index); /* If this endpoint is already in use, and the upper layers are trying * to add it again without dropping it, reject the addition. -- cgit v0.10.2 From b40a79591ca918e7b91b0d9b6abd5d00f2e88c19 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Thu, 25 Oct 2012 22:28:12 +0200 Subject: freezer: exec should clear PF_NOFREEZE along with PF_KTHREAD flush_old_exec() clears PF_KTHREAD but forgets about PF_NOFREEZE. Signed-off-by: Oleg Nesterov Acked-by: Tejun Heo Cc: stable@vger.kernel.org Signed-off-by: Rafael J. Wysocki diff --git a/fs/exec.c b/fs/exec.c index 8b9011b..0039055 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1083,7 +1083,8 @@ int flush_old_exec(struct linux_binprm * bprm) bprm->mm = NULL; /* We're using it now */ set_fs(USER_DS); - current->flags &= ~(PF_RANDOMIZE | PF_FORKNOEXEC | PF_KTHREAD); + current->flags &= + ~(PF_RANDOMIZE | PF_FORKNOEXEC | PF_KTHREAD | PF_NOFREEZE); flush_thread(); current->personality &= ~bprm->per_clear; -- cgit v0.10.2 From ef5d437f71afdf4afdbab99213add99f4b1318fd Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 25 Oct 2012 13:37:31 -0700 Subject: mm: fix XFS oops due to dirty pages without buffers on s390 On s390 any write to a page (even from kernel itself) sets architecture specific page dirty bit. Thus when a page is written to via buffered write, HW dirty bit gets set and when we later map and unmap the page, page_remove_rmap() finds the dirty bit and calls set_page_dirty(). Dirtying of a page which shouldn't be dirty can cause all sorts of problems to filesystems. The bug we observed in practice is that buffers from the page get freed, so when the page gets later marked as dirty and writeback writes it, XFS crashes due to an assertion BUG_ON(!PagePrivate(page)) in page_buffers() called from xfs_count_page_state(). Similar problem can also happen when zero_user_segment() call from xfs_vm_writepage() (or block_write_full_page() for that matter) set the hardware dirty bit during writeback, later buffers get freed, and then page unmapped. Fix the issue by ignoring s390 HW dirty bit for page cache pages of mappings with mapping_cap_account_dirty(). This is safe because for such mappings when a page gets marked as writeable in PTE it is also marked dirty in do_wp_page() or do_page_fault(). When the dirty bit is cleared by clear_page_dirty_for_io(), the page gets writeprotected in page_mkclean(). So pagecache page is writeable if and only if it is dirty. Thanks to Hugh Dickins for pointing out mapping has to have mapping_cap_account_dirty() for things to work and proposing a cleaned up variant of the patch. The patch has survived about two hours of running fsx-linux on tmpfs while heavily swapping and several days of running on out build machines where the original problem was triggered. Signed-off-by: Jan Kara Cc: Martin Schwidefsky Cc: Mel Gorman Cc: Hugh Dickins Cc: Heiko Carstens Cc: [3.0+] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/rmap.c b/mm/rmap.c index 7df7984..2ee1ef0 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -56,6 +56,7 @@ #include #include #include +#include #include @@ -926,11 +927,8 @@ int page_mkclean(struct page *page) if (page_mapped(page)) { struct address_space *mapping = page_mapping(page); - if (mapping) { + if (mapping) ret = page_mkclean_file(mapping, page); - if (page_test_and_clear_dirty(page_to_pfn(page), 1)) - ret = 1; - } } return ret; @@ -1116,6 +1114,7 @@ void page_add_file_rmap(struct page *page) */ void page_remove_rmap(struct page *page) { + struct address_space *mapping = page_mapping(page); bool anon = PageAnon(page); bool locked; unsigned long flags; @@ -1138,8 +1137,19 @@ void page_remove_rmap(struct page *page) * this if the page is anon, so about to be freed; but perhaps * not if it's in swapcache - there might be another pte slot * containing the swap entry, but page not yet written to swap. + * + * And we can skip it on file pages, so long as the filesystem + * participates in dirty tracking; but need to catch shm and tmpfs + * and ramfs pages which have been modified since creation by read + * fault. + * + * Note that mapping must be decided above, before decrementing + * mapcount (which luckily provides a barrier): once page is unmapped, + * it could be truncated and page->mapping reset to NULL at any moment. + * Note also that we are relying on page_mapping(page) to set mapping + * to &swapper_space when PageSwapCache(page). */ - if ((!anon || PageSwapCache(page)) && + if (mapping && !mapping_cap_account_dirty(mapping) && page_test_and_clear_dirty(page_to_pfn(page), 1)) set_page_dirty(page); /* -- cgit v0.10.2 From 8c9506d16925f1b1314d93af383ca3134eb534d8 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Thu, 25 Oct 2012 13:37:34 -0700 Subject: cgroup: fix invalid rcu dereference Commit ad676077a2ae ("device_cgroup: convert device_cgroup internally to policy + exceptions") removed rcu locks which are needed in task_devcgroup called in this chain: devcgroup_inode_mknod OR __devcgroup_inode_permission -> __devcgroup_inode_permission -> task_devcgroup -> task_subsys_state -> task_subsys_state_check. Change the code so that task_devcgroup is safely called with rcu read lock held. =============================== [ INFO: suspicious RCU usage. ] 3.6.0-rc5-next-20120913+ #42 Not tainted ------------------------------- include/linux/cgroup.h:553 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 2 locks held by kdevtmpfs/23: #0: (sb_writers){.+.+.+}, at: [] mnt_want_write+0x1f/0x50 #1: (&sb->s_type->i_mutex_key#3/1){+.+.+.}, at: [] kern_path_create+0x7f/0x170 stack backtrace: Pid: 23, comm: kdevtmpfs Not tainted 3.6.0-rc5-next-20120913+ #42 Call Trace: lockdep_rcu_suspicious+0xfd/0x130 devcgroup_inode_mknod+0x19d/0x240 vfs_mknod+0x71/0xf0 handle_create.isra.2+0x72/0x200 devtmpfsd+0x114/0x140 ? handle_create.isra.2+0x200/0x200 kthread+0xd6/0xe0 kernel_thread_helper+0x4/0x10 Signed-off-by: Jiri Slaby Cc: Dave Jones Cc: Tejun Heo Cc: Li Zefan Cc: James Morris Cc: Pavel Emelyanov Acked-by: Serge Hallyn Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/security/device_cgroup.c b/security/device_cgroup.c index 44dfc41..46d01fc 100644 --- a/security/device_cgroup.c +++ b/security/device_cgroup.c @@ -533,10 +533,10 @@ struct cgroup_subsys devices_subsys = { * * returns 0 on success, -EPERM case the operation is not permitted */ -static int __devcgroup_check_permission(struct dev_cgroup *dev_cgroup, - short type, u32 major, u32 minor, +static int __devcgroup_check_permission(short type, u32 major, u32 minor, short access) { + struct dev_cgroup *dev_cgroup; struct dev_exception_item ex; int rc; @@ -547,6 +547,7 @@ static int __devcgroup_check_permission(struct dev_cgroup *dev_cgroup, ex.access = access; rcu_read_lock(); + dev_cgroup = task_devcgroup(current); rc = may_access(dev_cgroup, &ex); rcu_read_unlock(); @@ -558,7 +559,6 @@ static int __devcgroup_check_permission(struct dev_cgroup *dev_cgroup, int __devcgroup_inode_permission(struct inode *inode, int mask) { - struct dev_cgroup *dev_cgroup = task_devcgroup(current); short type, access = 0; if (S_ISBLK(inode->i_mode)) @@ -570,13 +570,12 @@ int __devcgroup_inode_permission(struct inode *inode, int mask) if (mask & MAY_READ) access |= ACC_READ; - return __devcgroup_check_permission(dev_cgroup, type, imajor(inode), - iminor(inode), access); + return __devcgroup_check_permission(type, imajor(inode), iminor(inode), + access); } int devcgroup_inode_mknod(int mode, dev_t dev) { - struct dev_cgroup *dev_cgroup = task_devcgroup(current); short type; if (!S_ISBLK(mode) && !S_ISCHR(mode)) @@ -587,7 +586,7 @@ int devcgroup_inode_mknod(int mode, dev_t dev) else type = DEV_CHAR; - return __devcgroup_check_permission(dev_cgroup, type, MAJOR(dev), - MINOR(dev), ACC_MKNOD); + return __devcgroup_check_permission(type, MAJOR(dev), MINOR(dev), + ACC_MKNOD); } -- cgit v0.10.2 From 5b7aa7d5bb2c5cf7fc05aaa41561af321706ab5f Mon Sep 17 00:00:00 2001 From: Aristeu Rozanski Date: Thu, 25 Oct 2012 13:37:38 -0700 Subject: device_cgroup: rename deny_all to behavior This was done in a v2 patch but v1 ended up being committed. The variable name is less confusing and stores the default behavior when no matching exception exists. Signed-off-by: Aristeu Rozanski Cc: Dave Jones Cc: Tejun Heo Cc: Li Zefan Cc: James Morris Cc: Pavel Emelyanov Acked-by: Serge Hallyn Cc: Jiri Slaby Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/security/device_cgroup.c b/security/device_cgroup.c index 46d01fc..76503df 100644 --- a/security/device_cgroup.c +++ b/security/device_cgroup.c @@ -42,7 +42,10 @@ struct dev_exception_item { struct dev_cgroup { struct cgroup_subsys_state css; struct list_head exceptions; - bool deny_all; + enum { + DEVCG_DEFAULT_ALLOW, + DEVCG_DEFAULT_DENY, + } behavior; }; static inline struct dev_cgroup *css_to_devcgroup(struct cgroup_subsys_state *s) @@ -182,13 +185,13 @@ static struct cgroup_subsys_state *devcgroup_create(struct cgroup *cgroup) parent_cgroup = cgroup->parent; if (parent_cgroup == NULL) - dev_cgroup->deny_all = false; + dev_cgroup->behavior = DEVCG_DEFAULT_ALLOW; else { parent_dev_cgroup = cgroup_to_devcgroup(parent_cgroup); mutex_lock(&devcgroup_mutex); ret = dev_exceptions_copy(&dev_cgroup->exceptions, &parent_dev_cgroup->exceptions); - dev_cgroup->deny_all = parent_dev_cgroup->deny_all; + dev_cgroup->behavior = parent_dev_cgroup->behavior; mutex_unlock(&devcgroup_mutex); if (ret) { kfree(dev_cgroup); @@ -260,7 +263,7 @@ static int devcgroup_seq_read(struct cgroup *cgroup, struct cftype *cft, * - List the exceptions in case the default policy is to deny * This way, the file remains as a "whitelist of devices" */ - if (devcgroup->deny_all == false) { + if (devcgroup->behavior == DEVCG_DEFAULT_ALLOW) { set_access(acc, ACC_MASK); set_majmin(maj, ~0); set_majmin(min, ~0); @@ -314,12 +317,12 @@ static int may_access(struct dev_cgroup *dev_cgroup, * In two cases we'll consider this new exception valid: * - the dev cgroup has its default policy to allow + exception list: * the new exception should *not* match any of the exceptions - * (!deny_all, !match) + * (behavior == DEVCG_DEFAULT_ALLOW, !match) * - the dev cgroup has its default policy to deny + exception list: * the new exception *should* match the exceptions - * (deny_all, match) + * (behavior == DEVCG_DEFAULT_DENY, match) */ - if (dev_cgroup->deny_all == match) + if ((dev_cgroup->behavior == DEVCG_DEFAULT_DENY) == match) return 1; return 0; } @@ -375,11 +378,11 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, if (!parent_has_perm(devcgroup, &ex)) return -EPERM; dev_exception_clean(devcgroup); - devcgroup->deny_all = false; + devcgroup->behavior = DEVCG_DEFAULT_ALLOW; break; case DEVCG_DENY: dev_exception_clean(devcgroup); - devcgroup->deny_all = true; + devcgroup->behavior = DEVCG_DEFAULT_DENY; break; default: return -EINVAL; @@ -452,7 +455,7 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, * an matching exception instead. And be silent about it: we * don't want to break compatibility */ - if (devcgroup->deny_all == false) { + if (devcgroup->behavior == DEVCG_DEFAULT_ALLOW) { dev_exception_rm(devcgroup, &ex); return 0; } @@ -463,7 +466,7 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, * an matching exception instead. And be silent about it: we * don't want to break compatibility */ - if (devcgroup->deny_all == true) { + if (devcgroup->behavior == DEVCG_DEFAULT_DENY) { dev_exception_rm(devcgroup, &ex); return 0; } -- cgit v0.10.2 From 26fd8405dd470cb8b54cb96859b7dd437e5e1391 Mon Sep 17 00:00:00 2001 From: Aristeu Rozanski Date: Thu, 25 Oct 2012 13:37:41 -0700 Subject: device_cgroup: stop using simple_strtoul() Convert the code to use kstrtou32() instead of simple_strtoul() which is deprecated. The real size of the variables are u32, so use kstrtou32 instead of kstrtoul Signed-off-by: Aristeu Rozanski Cc: Dave Jones Cc: Tejun Heo Cc: Li Zefan Cc: James Morris Cc: Pavel Emelyanov Acked-by: Serge Hallyn Cc: Jiri Slaby Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/security/device_cgroup.c b/security/device_cgroup.c index 76503df..4fbae8d 100644 --- a/security/device_cgroup.c +++ b/security/device_cgroup.c @@ -361,8 +361,8 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, int filetype, const char *buffer) { const char *b; - char *endp; - int count; + char temp[12]; /* 11 + 1 characters needed for a u32 */ + int count, rc; struct dev_exception_item ex; if (!capable(CAP_SYS_ADMIN)) @@ -405,8 +405,16 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, ex.major = ~0; b++; } else if (isdigit(*b)) { - ex.major = simple_strtoul(b, &endp, 10); - b = endp; + memset(temp, 0, sizeof(temp)); + for (count = 0; count < sizeof(temp) - 1; count++) { + temp[count] = *b; + b++; + if (!isdigit(*b)) + break; + } + rc = kstrtou32(temp, 10, &ex.major); + if (rc) + return -EINVAL; } else { return -EINVAL; } @@ -419,8 +427,16 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, ex.minor = ~0; b++; } else if (isdigit(*b)) { - ex.minor = simple_strtoul(b, &endp, 10); - b = endp; + memset(temp, 0, sizeof(temp)); + for (count = 0; count < sizeof(temp) - 1; count++) { + temp[count] = *b; + b++; + if (!isdigit(*b)) + break; + } + rc = kstrtou32(temp, 10, &ex.minor); + if (rc) + return -EINVAL; } else { return -EINVAL; } -- cgit v0.10.2 From 4cef7299b4786879a3e113e84084a72b24590c5b Mon Sep 17 00:00:00 2001 From: Aristeu Rozanski Date: Thu, 25 Oct 2012 13:37:45 -0700 Subject: device_cgroup: add proper checking when changing default behavior Before changing a group's default behavior to ALLOW, we must check if its parent's behavior is also ALLOW. Signed-off-by: Aristeu Rozanski Cc: Tejun Heo Cc: Li Zefan Cc: James Morris Cc: Pavel Emelyanov Acked-by: Serge Hallyn Cc: Jiri Slaby Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/security/device_cgroup.c b/security/device_cgroup.c index 4fbae8d..842c254 100644 --- a/security/device_cgroup.c +++ b/security/device_cgroup.c @@ -344,6 +344,17 @@ static int parent_has_perm(struct dev_cgroup *childcg, return may_access(parent, ex); } +/** + * may_allow_all - checks if it's possible to change the behavior to + * allow based on parent's rules. + * @parent: device cgroup's parent + * returns: != 0 in case it's allowed, 0 otherwise + */ +static inline int may_allow_all(struct dev_cgroup *parent) +{ + return parent->behavior == DEVCG_DEFAULT_ALLOW; +} + /* * Modify the exception list using allow/deny rules. * CAP_SYS_ADMIN is needed for this. It's at least separate from CAP_MKNOD @@ -364,6 +375,8 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, char temp[12]; /* 11 + 1 characters needed for a u32 */ int count, rc; struct dev_exception_item ex; + struct cgroup *p = devcgroup->css.cgroup; + struct dev_cgroup *parent = cgroup_to_devcgroup(p->parent); if (!capable(CAP_SYS_ADMIN)) return -EPERM; @@ -375,9 +388,13 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, case 'a': switch (filetype) { case DEVCG_ALLOW: - if (!parent_has_perm(devcgroup, &ex)) + if (!may_allow_all(parent)) return -EPERM; dev_exception_clean(devcgroup); + rc = dev_exceptions_copy(&devcgroup->exceptions, + &parent->exceptions); + if (rc) + return rc; devcgroup->behavior = DEVCG_DEFAULT_ALLOW; break; case DEVCG_DENY: -- cgit v0.10.2 From fd6de5300e6fcad5621ef7e78eb227de9d4c8b79 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Thu, 25 Oct 2012 13:37:48 -0700 Subject: backlight: ili9320: add missing SPI dependency Add this missing SPI dependency and prevent the driver from building without SPI, because functions of the spi driver are used in this driver. drivers/video/backlight/ili9320.c:51: undefined reference to `spi_sync' Also, a prompt string for CONFIG_LCD_ILI9320 is added for explicit selection. Signed-off-by: Jingoo Han Cc: Richard Purdie Cc: Ben Dooks Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index c101697..765a945 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -60,7 +60,8 @@ config LCD_LTV350QV The LTV350QV panel is present on all ATSTK1000 boards. config LCD_ILI9320 - tristate + tristate "ILI Technology ILI9320 controller support" + depends on SPI help If you have a panel based on the ILI9320 controller chip then say y to include a power driver for it. -- cgit v0.10.2 From eedce141cd2dad8d0cefc5468ef41898949a7031 Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Thu, 25 Oct 2012 13:37:51 -0700 Subject: genalloc: stop crashing the system when destroying a pool The genalloc code uses the bitmap API from include/linux/bitmap.h and lib/bitmap.c, which is based on long values. Both bitmap_set from lib/bitmap.c and bitmap_set_ll, which is the lockless version from genalloc.c, use BITMAP_LAST_WORD_MASK to set the first bits in a long in the bitmap. That one uses (1 << bits) - 1, 0b111, if you are setting the first three bits. This means that the API counts from the least significant bits (LSB from now on) to the MSB. The LSB in the first long is bit 0, then. The same works for the lookup functions. The genalloc code uses longs for the bitmap, as it should. In include/linux/genalloc.h, struct gen_pool_chunk has unsigned long bits[0] as its last member. When allocating the struct, genalloc should reserve enough space for the bitmap. This should be a proper number of longs that can fit the amount of bits in the bitmap. However, genalloc allocates an integer number of bytes that fit the amount of bits, but may not be an integer amount of longs. 9 bytes, for example, could be allocated for 70 bits. This is a problem in itself if the Least Significat Bit in a long is in the byte with the largest address, which happens in Big Endian machines. This means genalloc is not allocating the byte in which it will try to set or check for a bit. This may end up in memory corruption, where genalloc will try to set the bits it has not allocated. In fact, genalloc may not set these bits because it may find them already set, because they were not zeroed since they were not allocated. And that's what causes a BUG when gen_pool_destroy is called and check for any set bits. What really happens is that genalloc uses kmalloc_node with __GFP_ZERO on gen_pool_add_virt. With SLAB and SLUB, this means the whole slab will be cleared, not only the requested bytes. Since struct gen_pool_chunk has a size that is a multiple of 8, and slab sizes are multiples of 8, we get lucky and allocate and clear the right amount of bytes. Hower, this is not the case with SLOB or with older code that did memset after allocating instead of using __GFP_ZERO. So, a simple module as this (running 3.6.0), will cause a crash when rmmod'ed. [root@phantom-lp2 foo]# cat foo.c #include #include #include #include MODULE_LICENSE("GPL"); MODULE_VERSION("0.1"); static struct gen_pool *foo_pool; static __init int foo_init(void) { int ret; foo_pool = gen_pool_create(10, -1); if (!foo_pool) return -ENOMEM; ret = gen_pool_add(foo_pool, 0xa0000000, 32 << 10, -1); if (ret) { gen_pool_destroy(foo_pool); return ret; } return 0; } static __exit void foo_exit(void) { gen_pool_destroy(foo_pool); } module_init(foo_init); module_exit(foo_exit); [root@phantom-lp2 foo]# zcat /proc/config.gz | grep SLOB CONFIG_SLOB=y [root@phantom-lp2 foo]# insmod ./foo.ko [root@phantom-lp2 foo]# rmmod foo ------------[ cut here ]------------ kernel BUG at lib/genalloc.c:243! cpu 0x4: Vector: 700 (Program Check) at [c0000000bb0e7960] pc: c0000000003cb50c: .gen_pool_destroy+0xac/0x110 lr: c0000000003cb4fc: .gen_pool_destroy+0x9c/0x110 sp: c0000000bb0e7be0 msr: 8000000000029032 current = 0xc0000000bb0e0000 paca = 0xc000000006d30e00 softe: 0 irq_happened: 0x01 pid = 13044, comm = rmmod kernel BUG at lib/genalloc.c:243! [c0000000bb0e7ca0] d000000004b00020 .foo_exit+0x20/0x38 [foo] [c0000000bb0e7d20] c0000000000dff98 .SyS_delete_module+0x1a8/0x290 [c0000000bb0e7e30] c0000000000097d4 syscall_exit+0x0/0x94 --- Exception: c00 (System Call) at 000000800753d1a0 SP (fffd0b0e640) is in userspace Signed-off-by: Thadeu Lima de Souza Cascardo Cc: Paul Gortmaker Cc: Benjamin Gaignard Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/lib/genalloc.c b/lib/genalloc.c index ca208a9..5492043 100644 --- a/lib/genalloc.c +++ b/lib/genalloc.c @@ -178,7 +178,7 @@ int gen_pool_add_virt(struct gen_pool *pool, unsigned long virt, phys_addr_t phy struct gen_pool_chunk *chunk; int nbits = size >> pool->min_alloc_order; int nbytes = sizeof(struct gen_pool_chunk) + - (nbits + BITS_PER_BYTE - 1) / BITS_PER_BYTE; + BITS_TO_LONGS(nbits) * sizeof(long); chunk = kmalloc_node(nbytes, GFP_KERNEL | __GFP_ZERO, nid); if (unlikely(chunk == NULL)) -- cgit v0.10.2 From 29fc7c5a4f516d388fb6e1f6d24bfb04b8093e54 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 25 Oct 2012 13:37:53 -0700 Subject: rbtree: include linux/compiler.h for definition of __always_inline rb_erase_augmented() is a static function annotated with __always_inline. This causes a compile failure when attempting to use the rbtree implementation as a library (e.g. kvm tool): rbtree_augmented.h:125:24: error: expected `=', `,', `;', `asm' or `__attribute__' before `void' Include linux/compiler.h in rbtree_augmented.h so that the __always_inline macro is resolved correctly. Signed-off-by: Will Deacon Cc: Pekka Enberg Reviewed-by: Michel Lespinasse Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/include/linux/rbtree_augmented.h b/include/linux/rbtree_augmented.h index 214caa3..2ac60c9 100644 --- a/include/linux/rbtree_augmented.h +++ b/include/linux/rbtree_augmented.h @@ -24,6 +24,7 @@ #ifndef _LINUX_RBTREE_AUGMENTED_H #define _LINUX_RBTREE_AUGMENTED_H +#include #include /* -- cgit v0.10.2 From 86a595f961360c9c31d00fb111dd09e5d5ba9a40 Mon Sep 17 00:00:00 2001 From: Bob Liu Date: Thu, 25 Oct 2012 13:37:56 -0700 Subject: mm/page_alloc.c:alloc_contig_range(): return early for err path If start_isolate_page_range() failed, unset_migratetype_isolate() has been done inside it. Signed-off-by: Bob Liu Cc: Ni zhan Chen Cc: Marek Szyprowski Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/page_alloc.c b/mm/page_alloc.c index bb90971..b0012ab 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5825,7 +5825,7 @@ int alloc_contig_range(unsigned long start, unsigned long end, ret = start_isolate_page_range(pfn_max_align_down(start), pfn_max_align_up(end), migratetype); if (ret) - goto done; + return ret; ret = __alloc_contig_migrate_range(&cc, start, end); if (ret) -- cgit v0.10.2 From 59ce8764bdfe8f3c6c02d3215741584dbb43409d Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 25 Oct 2012 13:37:57 -0700 Subject: UAPI: fix tools/vm/page-types.c Fix tools/vm/page-types.c to use the UAPI variant of linux/kernel-page-flags.h lest the following error appear: In file included from page-types.c:38:0: ../../include/linux/kernel-page-flags.h:4:42: fatal error: uapi/linux/kernel-page-flags.h: No such file or directory Reported-by: Daniel Hazelton Signed-off-by: David Howells Reviewed-by: Fengguang Wu Tested-by: Daniel Hazelton Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/tools/vm/page-types.c b/tools/vm/page-types.c index cd1b03e..b76edf2 100644 --- a/tools/vm/page-types.c +++ b/tools/vm/page-types.c @@ -35,7 +35,7 @@ #include #include #include "../../include/uapi/linux/magic.h" -#include "../../include/linux/kernel-page-flags.h" +#include "../../include/uapi/linux/kernel-page-flags.h" #ifndef MAX_PATH -- cgit v0.10.2 From fc314d0a4a933603f521de343634910a4ed9b37b Mon Sep 17 00:00:00 2001 From: Daniel Hazelton Date: Thu, 25 Oct 2012 13:37:59 -0700 Subject: tools/testing/selftests/epoll/test_epoll.c: fix build Latest Linus head run of "make selftests" in the tools directory failed with references to undefined variables. Reference was to 'write_thread_data' which is the name of a struct that is being used, not the variable itself. Change reference so it points to the variable. Signed-off-by: Daniel Hazelton Cc: "Paton J. Lewis" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/tools/testing/selftests/epoll/test_epoll.c b/tools/testing/selftests/epoll/test_epoll.c index e0fcff1..f752539 100644 --- a/tools/testing/selftests/epoll/test_epoll.c +++ b/tools/testing/selftests/epoll/test_epoll.c @@ -162,14 +162,14 @@ void *write_thread_function(void *function_data) int index; struct write_thread_data *thread_data = (struct write_thread_data *)function_data; - while (!write_thread_data->stop) + while (!thread_data->stop) for (index = 0; !thread_data->stop && (index < thread_data->n_fds); ++index) if ((write(thread_data->fds[index], &data, 1) < 1) && (errno != EAGAIN) && (errno != EWOULDBLOCK)) { - write_thread_data->status = errno; + thread_data->status = errno; return; } } -- cgit v0.10.2 From 35cfa2b0b491c37e23527822bf365610dbb188e5 Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Thu, 25 Oct 2012 13:38:01 -0700 Subject: mm/mmu_notifier: allocate mmu_notifier in advance While allocating mmu_notifier with parameter GFP_KERNEL, swap would start to work in case of tight available memory. Eventually, that would lead to a deadlock while the swap deamon swaps anonymous pages. It was caused by commit e0f3c3f78da29b ("mm/mmu_notifier: init notifier if necessary"). ================================= [ INFO: inconsistent lock state ] 3.7.0-rc1+ #518 Not tainted --------------------------------- inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-W} usage. kswapd0/35 [HC0[0]:SC0[0]:HE1:SE1] takes: (&mapping->i_mmap_mutex){+.+.?.}, at: page_referenced+0x9c/0x2e0 {RECLAIM_FS-ON-W} state was registered at: mark_held_locks+0x86/0x150 lockdep_trace_alloc+0x67/0xc0 kmem_cache_alloc_trace+0x33/0x230 do_mmu_notifier_register+0x87/0x180 mmu_notifier_register+0x13/0x20 kvm_dev_ioctl+0x428/0x510 do_vfs_ioctl+0x98/0x570 sys_ioctl+0x91/0xb0 system_call_fastpath+0x16/0x1b irq event stamp: 825 hardirqs last enabled at (825): _raw_spin_unlock_irq+0x30/0x60 hardirqs last disabled at (824): _raw_spin_lock_irq+0x19/0x80 softirqs last enabled at (0): copy_process+0x630/0x17c0 softirqs last disabled at (0): (null) ... Simply back out the above commit, which was a small performance optimization. Signed-off-by: Gavin Shan Reported-by: Andrea Righi Tested-by: Andrea Righi Cc: Wanpeng Li Cc: Andrea Arcangeli Cc: Avi Kivity Cc: Hugh Dickins Cc: Marcelo Tosatti Cc: Xiao Guangrong Cc: Sagi Grimberg Cc: Haggai Eran Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c index 479a1e7..8a5ac8c 100644 --- a/mm/mmu_notifier.c +++ b/mm/mmu_notifier.c @@ -196,28 +196,28 @@ static int do_mmu_notifier_register(struct mmu_notifier *mn, BUG_ON(atomic_read(&mm->mm_users) <= 0); /* - * Verify that mmu_notifier_init() already run and the global srcu is - * initialized. - */ + * Verify that mmu_notifier_init() already run and the global srcu is + * initialized. + */ BUG_ON(!srcu.per_cpu_ref); + ret = -ENOMEM; + mmu_notifier_mm = kmalloc(sizeof(struct mmu_notifier_mm), GFP_KERNEL); + if (unlikely(!mmu_notifier_mm)) + goto out; + if (take_mmap_sem) down_write(&mm->mmap_sem); ret = mm_take_all_locks(mm); if (unlikely(ret)) - goto out; + goto out_clean; if (!mm_has_notifiers(mm)) { - mmu_notifier_mm = kmalloc(sizeof(struct mmu_notifier_mm), - GFP_KERNEL); - if (unlikely(!mmu_notifier_mm)) { - ret = -ENOMEM; - goto out_of_mem; - } INIT_HLIST_HEAD(&mmu_notifier_mm->list); spin_lock_init(&mmu_notifier_mm->lock); mm->mmu_notifier_mm = mmu_notifier_mm; + mmu_notifier_mm = NULL; } atomic_inc(&mm->mm_count); @@ -233,12 +233,12 @@ static int do_mmu_notifier_register(struct mmu_notifier *mn, hlist_add_head(&mn->hlist, &mm->mmu_notifier_mm->list); spin_unlock(&mm->mmu_notifier_mm->lock); -out_of_mem: mm_drop_all_locks(mm); -out: +out_clean: if (take_mmap_sem) up_write(&mm->mmap_sem); - + kfree(mmu_notifier_mm); +out: BUG_ON(atomic_read(&mm->mm_users) <= 0); return ret; } -- cgit v0.10.2 From d5ea7b5ec1ee4dac868143806c0bd94855754677 Mon Sep 17 00:00:00 2001 From: Hein Tibosch Date: Thu, 25 Oct 2012 13:38:05 -0700 Subject: drivers/dma/dw_dmac: make driver's endianness configurable The dw_dmac driver was originally developed for avr32 to be used with the Synopsys DesignWare AHB DMA controller. Starting from 2.6.38, access to the device's i/o memory was done with the little-endian readl/writel functions(1) This broke the driver for the avr32 platform, because it needs big (native) endian accessors. This patch makes the endianness configurable using 'DW_DMAC_BIG_ENDIAN_IO', which will default be true for AVR32 I submitted this patch before(2) but then waited for Andy to finish other changes to the same module(3). (1) https://patchwork.kernel.org/patch/608211 (2) https://lkml.org/lkml/2012/8/26/148 (3) https://lkml.org/lkml/2012/9/21/173 Signed-off-by: Hein Tibosch Acked-by: Arnd Bergmann Cc: Andy Shevchenko Acked-by: Viresh Kumar Cc: Hans-Christian Egtvedt Cc: Ludovic Desroches Cc: Havard Skinnemoen Cc: Nicolas Ferre Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 677cd6e..d4c1218 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -90,6 +90,17 @@ config DW_DMAC Support the Synopsys DesignWare AHB DMA controller. This can be integrated in chips such as the Atmel AT32ap7000. +config DW_DMAC_BIG_ENDIAN_IO + bool "Use big endian I/O register access" + default y if AVR32 + depends on DW_DMAC + help + Say yes here to use big endian I/O access when reading and writing + to the DMA controller registers. This is needed on some platforms, + like the Atmel AVR32 architecture. + + If unsure, use the default setting. + config AT_HDMAC tristate "Atmel AHB DMA support" depends on ARCH_AT91 diff --git a/drivers/dma/dw_dmac_regs.h b/drivers/dma/dw_dmac_regs.h index ff39fa6..8896559 100644 --- a/drivers/dma/dw_dmac_regs.h +++ b/drivers/dma/dw_dmac_regs.h @@ -98,9 +98,17 @@ struct dw_dma_regs { u32 DW_PARAMS; }; +#ifdef CONFIG_DW_DMAC_BIG_ENDIAN_IO +#define dma_readl_native ioread32be +#define dma_writel_native iowrite32be +#else +#define dma_readl_native readl +#define dma_writel_native writel +#endif + /* To access the registers in early stage of probe */ #define dma_read_byaddr(addr, name) \ - readl((addr) + offsetof(struct dw_dma_regs, name)) + dma_readl_native((addr) + offsetof(struct dw_dma_regs, name)) /* Bitfields in DW_PARAMS */ #define DW_PARAMS_NR_CHAN 8 /* number of channels */ @@ -216,9 +224,9 @@ __dwc_regs(struct dw_dma_chan *dwc) } #define channel_readl(dwc, name) \ - readl(&(__dwc_regs(dwc)->name)) + dma_readl_native(&(__dwc_regs(dwc)->name)) #define channel_writel(dwc, name, val) \ - writel((val), &(__dwc_regs(dwc)->name)) + dma_writel_native((val), &(__dwc_regs(dwc)->name)) static inline struct dw_dma_chan *to_dw_dma_chan(struct dma_chan *chan) { @@ -246,9 +254,9 @@ static inline struct dw_dma_regs __iomem *__dw_regs(struct dw_dma *dw) } #define dma_readl(dw, name) \ - readl(&(__dw_regs(dw)->name)) + dma_readl_native(&(__dw_regs(dw)->name)) #define dma_writel(dw, name, val) \ - writel((val), &(__dw_regs(dw)->name)) + dma_writel_native((val), &(__dw_regs(dw)->name)) #define channel_set_bit(dw, reg, mask) \ dma_writel(dw, reg, ((mask) << 8) | (mask)) -- cgit v0.10.2 From f2302505775fd13ba93f034206f1e2a587017929 Mon Sep 17 00:00:00 2001 From: Andrew Vagin Date: Thu, 25 Oct 2012 13:38:07 -0700 Subject: pidns: limit the nesting depth of pid namespaces 'struct pid' is a "variable sized struct" - a header with an array of upids at the end. The size of the array depends on a level (depth) of pid namespaces. Now a level of pidns is not limited, so 'struct pid' can be more than one page. Looks reasonable, that it should be less than a page. MAX_PIS_NS_LEVEL is not calculated from PAGE_SIZE, because in this case it depends on architectures, config options and it will be reduced, if someone adds a new fields in struct pid or struct upid. I suggest to set MAX_PIS_NS_LEVEL = 32, because it saves ability to expand "struct pid" and it's more than enough for all known for me use-cases. When someone finds a reasonable use case, we can add a config option or a sysctl parameter. In addition it will reduce the effect of another problem, when we have many nested namespaces and the oldest one starts dying. zap_pid_ns_processe will be called for each namespace and find_vpid will be called for each process in a namespace. find_vpid will be called minimum max_level^2 / 2 times. The reason of that is that when we found a bit in pidmap, we can't determine this pidns is top for this process or it isn't. vpid is a heavy operation, so a fork bomb, which create many nested namespace, can make a system inaccessible for a long time. For example my system becomes inaccessible for a few minutes with 4000 processes. [akpm@linux-foundation.org: return -EINVAL in response to excessive nesting, not -ENOMEM] Signed-off-by: Andrew Vagin Acked-by: Oleg Nesterov Cc: Cyrill Gorcunov Cc: "Eric W. Biederman" Cc: Pavel Emelyanov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c index eb00be2..7b07cc0 100644 --- a/kernel/pid_namespace.c +++ b/kernel/pid_namespace.c @@ -71,12 +71,22 @@ err_alloc: return NULL; } +/* MAX_PID_NS_LEVEL is needed for limiting size of 'struct pid' */ +#define MAX_PID_NS_LEVEL 32 + static struct pid_namespace *create_pid_namespace(struct pid_namespace *parent_pid_ns) { struct pid_namespace *ns; unsigned int level = parent_pid_ns->level + 1; - int i, err = -ENOMEM; + int i; + int err; + + if (level > MAX_PID_NS_LEVEL) { + err = -EINVAL; + goto out; + } + err = -ENOMEM; ns = kmem_cache_zalloc(pid_ns_cachep, GFP_KERNEL); if (ns == NULL) goto out; -- cgit v0.10.2 From 6b187d0260b6cd1d0904309f32659b7ed5948af8 Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Thu, 25 Oct 2012 13:38:08 -0700 Subject: mm, numa: avoid setting zone_reclaim_mode unless a node is sufficiently distant Commit 957f822a0ab9 ("mm, numa: reclaim from all nodes within reclaim distance") caused zone_reclaim_mode to be set for all systems where two nodes are within RECLAIM_DISTANCE of each other. This is the opposite of what we actually want: zone_reclaim_mode should be set if two nodes are sufficiently distant. Signed-off-by: David Rientjes Reported-by: Julian Wollrath Tested-by: Julian Wollrath Cc: Hugh Dickins Cc: Patrik Kullman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/page_alloc.c b/mm/page_alloc.c index b0012ab..5b74de6 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1809,10 +1809,10 @@ static void __paginginit init_zone_allows_reclaim(int nid) int i; for_each_online_node(i) - if (node_distance(nid, i) <= RECLAIM_DISTANCE) { + if (node_distance(nid, i) <= RECLAIM_DISTANCE) node_set(i, NODE_DATA(nid)->reclaim_nodes); + else zone_reclaim_mode = 1; - } } #else /* CONFIG_NUMA */ -- cgit v0.10.2 From fee0de7791f967c2c5f0d43eb7b7261761b45e64 Mon Sep 17 00:00:00 2001 From: Jan Luebbe Date: Thu, 25 Oct 2012 13:38:11 -0700 Subject: drivers/rtc/rtc-imxdi.c: add missing spin lock initialization Signed-off-by: Jan Luebbe Cc: Alessandro Zummo Cc: Roland Stigge Cc: Grant Likely Tested-by: Roland Stigge Cc: Sascha Hauer Cc: Russell King Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/rtc/rtc-imxdi.c b/drivers/rtc/rtc-imxdi.c index 891cd6c..4eed510 100644 --- a/drivers/rtc/rtc-imxdi.c +++ b/drivers/rtc/rtc-imxdi.c @@ -392,6 +392,8 @@ static int dryice_rtc_probe(struct platform_device *pdev) if (imxdi->ioaddr == NULL) return -ENOMEM; + spin_lock_init(&imxdi->irq_lock); + imxdi->irq = platform_get_irq(pdev, 0); if (imxdi->irq < 0) return imxdi->irq; -- cgit v0.10.2 From 20f1de659b77364d55d4e7fad2ef657e7730323f Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 25 Oct 2012 13:38:14 -0700 Subject: gen_init_cpio: avoid stack overflow when expanding Fix possible overflow of the buffer used for expanding environment variables when building file list. In the extremely unlikely case of an attacker having control over the environment variables visible to gen_init_cpio, control over the contents of the file gen_init_cpio parses, and gen_init_cpio was built without compiler hardening, the attacker can gain arbitrary execution control via a stack buffer overflow. $ cat usr/crash.list file foo ${BIG}${BIG}${BIG}${BIG}${BIG}${BIG} 0755 0 0 $ BIG=$(perl -e 'print "A" x 4096;') ./usr/gen_init_cpio usr/crash.list *** buffer overflow detected ***: ./usr/gen_init_cpio terminated This also replaces the space-indenting with tabs. Patch based on existing fix extracted from grsecurity. Signed-off-by: Kees Cook Cc: Michal Marek Cc: Brad Spengler Cc: PaX Team Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/usr/gen_init_cpio.c b/usr/gen_init_cpio.c index af0f22f..aca6edc 100644 --- a/usr/gen_init_cpio.c +++ b/usr/gen_init_cpio.c @@ -303,7 +303,7 @@ static int cpio_mkfile(const char *name, const char *location, int retval; int rc = -1; int namesize; - int i; + unsigned int i; mode |= S_IFREG; @@ -381,25 +381,28 @@ error: static char *cpio_replace_env(char *new_location) { - char expanded[PATH_MAX + 1]; - char env_var[PATH_MAX + 1]; - char *start; - char *end; - - for (start = NULL; (start = strstr(new_location, "${")); ) { - end = strchr(start, '}'); - if (start < end) { - *env_var = *expanded = '\0'; - strncat(env_var, start + 2, end - start - 2); - strncat(expanded, new_location, start - new_location); - strncat(expanded, getenv(env_var), PATH_MAX); - strncat(expanded, end + 1, PATH_MAX); - strncpy(new_location, expanded, PATH_MAX); - } else - break; - } - - return new_location; + char expanded[PATH_MAX + 1]; + char env_var[PATH_MAX + 1]; + char *start; + char *end; + + for (start = NULL; (start = strstr(new_location, "${")); ) { + end = strchr(start, '}'); + if (start < end) { + *env_var = *expanded = '\0'; + strncat(env_var, start + 2, end - start - 2); + strncat(expanded, new_location, start - new_location); + strncat(expanded, getenv(env_var), + PATH_MAX - strlen(expanded)); + strncat(expanded, end + 1, + PATH_MAX - strlen(expanded)); + strncpy(new_location, expanded, PATH_MAX); + new_location[PATH_MAX] = 0; + } else + break; + } + + return new_location; } -- cgit v0.10.2 From 12176503366885edd542389eed3aaf94be163fdb Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 25 Oct 2012 13:38:16 -0700 Subject: fs/compat_ioctl.c: VIDEO_SET_SPU_PALETTE missing error check The compat ioctl for VIDEO_SET_SPU_PALETTE was missing an error check while converting ioctl arguments. This could lead to leaking kernel stack contents into userspace. Patch extracted from existing fix in grsecurity. Signed-off-by: Kees Cook Cc: David Miller Cc: Brad Spengler Cc: PaX Team Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index f505402..4c6285f 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -210,6 +210,8 @@ static int do_video_set_spu_palette(unsigned int fd, unsigned int cmd, err = get_user(palp, &up->palette); err |= get_user(length, &up->length); + if (err) + return -EFAULT; up_native = compat_alloc_user_space(sizeof(struct video_spu_palette)); err = put_user(compat_ptr(palp), &up_native->palette); -- cgit v0.10.2 From 2f72d4f6a29cf84c40fc05c76020b347b4774393 Mon Sep 17 00:00:00 2001 From: Chris Zankel Date: Tue, 23 Oct 2012 20:17:05 -0700 Subject: xtensa: allow multi-inclusion for uapi/unistd.h Xtensa implements a method that allows to generate a arbitrary output for each system call by defining the __SYSCALL(number, function, num_args). This usually requires to include uapi/unistd.h twice. Instead of removing the guard agains multiple inclusion entirely, allow to include unistd.h again only if __SYSCALL is defined. Note that __SYSCALL gets always undefined at the end of the file. Signed-off-by: Chris Zankel diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h index 9ef1c31..d9fa52d 100644 --- a/arch/xtensa/include/asm/unistd.h +++ b/arch/xtensa/include/asm/unistd.h @@ -1,16 +1,8 @@ -/* - * include/asm-xtensa/unistd.h - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2001 - 2005 Tensilica Inc. - */ +#ifndef _XTENSA_UNISTD_H +#define _XTENSA_UNISTD_H #include - /* * "Conditional" syscalls * @@ -37,3 +29,5 @@ #define __IGNORE_mmap /* use mmap2 */ #define __IGNORE_vfork /* use clone */ #define __IGNORE_fadvise64 /* use fadvise64_64 */ + +#endif /* _XTENSA_UNISTD_H */ diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h index 479abae..1fd157f 100644 --- a/arch/xtensa/include/uapi/asm/unistd.h +++ b/arch/xtensa/include/uapi/asm/unistd.h @@ -1,14 +1,4 @@ -/* - * include/asm-xtensa/unistd.h - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2001 - 2012 Tensilica Inc. - */ - -#ifndef _UAPI_XTENSA_UNISTD_H +#if !defined(_UAPI_XTENSA_UNISTD_H) || defined(__SYSCALL) #define _UAPI_XTENSA_UNISTD_H #ifndef __SYSCALL @@ -759,4 +749,6 @@ __SYSCALL(331, sys_kcmp, 5) #define SYS_XTENSA_COUNT 5 /* count */ +#undef __SYSCALL + #endif /* _UAPI_XTENSA_UNISTD_H */ diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c index a5c01e7..5702065 100644 --- a/arch/xtensa/kernel/syscall.c +++ b/arch/xtensa/kernel/syscall.c @@ -32,10 +32,8 @@ typedef void (*syscall_t)(void); syscall_t sys_call_table[__NR_syscall_count] /* FIXME __cacheline_aligned */= { [0 ... __NR_syscall_count - 1] = (syscall_t)&sys_ni_syscall, -#undef __SYSCALL #define __SYSCALL(nr,symbol,nargs) [ nr ] = (syscall_t)symbol, -#undef __KERNEL_SYSCALLS__ -#include +#include }; asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg) @@ -49,7 +47,8 @@ asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg) return (long)ret; } -asmlinkage long xtensa_fadvise64_64(int fd, int advice, unsigned long long offset, unsigned long long len) +asmlinkage long xtensa_fadvise64_64(int fd, int advice, + unsigned long long offset, unsigned long long len) { return sys_fadvise64_64(fd, offset, len, advice); } -- cgit v0.10.2 From cddfcbcd05851a3b720055d40fc61c63ea1c2bd1 Mon Sep 17 00:00:00 2001 From: Chris Zankel Date: Tue, 23 Oct 2012 20:25:37 -0700 Subject: xtensa: use physical addresses for bus addresses Define virt_to_bus and bus_to_virt as virt_to_phys, and phys_to_virt, respectively. Signed-off-by: Chris Zankel diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h index e6be5b9..700c2e6 100644 --- a/arch/xtensa/include/asm/io.h +++ b/arch/xtensa/include/asm/io.h @@ -62,6 +62,10 @@ static inline void __iomem *ioremap(unsigned long offset, unsigned long size) static inline void iounmap(volatile void __iomem *addr) { } + +#define virt_to_bus virt_to_phys +#define bus_to_virt phys_to_virt + #endif /* CONFIG_MMU */ /* -- cgit v0.10.2 From 6ebe7da25b7879194fdb5c43ea67b383dd9014d6 Mon Sep 17 00:00:00 2001 From: Chris Zankel Date: Wed, 24 Oct 2012 13:15:21 -0700 Subject: xtensa: reset windowbase/windowstart when cloning the VM When we copy a user thread with CLONE_VM, we also have to reset windowbase and windowstart to start a pristine stack frame. Otherwise, overflows can happen using the address 0 as the stack pointer. Also add a special case for vfork, which continues on the parent stack until it calls execve. Because this could be a call8, we need to spill the stack pointer of the previus frame (if still 'live' in the register file). Signed-off-by: Chris Zankel diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c index 1908f66..341c151 100644 --- a/arch/xtensa/kernel/process.c +++ b/arch/xtensa/kernel/process.c @@ -220,8 +220,32 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, if (user_mode(regs)) { childregs->areg[1] = usp; + + /* When sharing memory with the parent thread, the child + usually starts on a pristine stack, so we have to reset + windowbase, windowstart and wmask. + (Note that such a new thread is required to always create + an initial call4 frame) + The exception is vfork, where the new thread continues to + run on the parent's stack until it calls execve. This could + be a call8 or call12, which requires a legal stack frame + of the previous caller for the overflow handlers to work. + (Note that it's always legal to overflow live registers). + In this case, ensure to spill at least the stack pointer + of that frame. */ + if (clone_flags & CLONE_VM) { - childregs->wmask = 1; /* can't share live windows */ + /* check that caller window is live and same stack */ + int len = childregs->wmask & ~0xf; + if (regs->areg[1] == usp && len != 0) { + int callinc = (regs->areg[0] >> 30) & 3; + int caller_ars = XCHAL_NUM_AREGS - callinc * 4; + put_user(regs->areg[caller_ars+1], + (unsigned __user*)(usp - 12)); + } + childregs->wmask = 1; + childregs->windowstart = 1; + childregs->windowbase = 0; } else { int len = childregs->wmask & ~0xf; memcpy(&childregs->areg[XCHAL_NUM_AREGS - len/4], -- cgit v0.10.2 From 3306a72669a2af23b324540b08e68e82ac5b7dab Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Thu, 25 Oct 2012 11:10:50 +0400 Subject: xtensa: switch to generic kernel_thread() Signed-off-by: Max Filippov Signed-off-by: Chris Zankel diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index cdcb48a..9525b70 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -13,6 +13,7 @@ config XTENSA select GENERIC_CPU_DEVICES select MODULES_USE_ELF_RELA select GENERIC_PCI_IOMAP + select GENERIC_KERNEL_THREAD select ARCH_WANT_OPTIONAL_GPIOLIB help Xtensa processors are 32-bit RISC machines designed by Tensilica diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h index 5c371d8..2d630e7 100644 --- a/arch/xtensa/include/asm/processor.h +++ b/arch/xtensa/include/asm/processor.h @@ -152,6 +152,7 @@ struct thread_struct { /* Clearing a0 terminates the backtrace. */ #define start_thread(regs, new_pc, new_sp) \ + memset(regs, 0, sizeof(*regs)); \ regs->pc = new_pc; \ regs->ps = USER_PS_VALUE; \ regs->areg[1] = new_sp; \ @@ -168,9 +169,6 @@ struct mm_struct; /* Free all resources held by a thread. */ #define release_thread(thread) do { } while(0) -/* Create a kernel thread without removing it from tasklists */ -extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); - /* Copy and release all segment info associated with a VM */ #define copy_segments(p, mm) do { } while(0) #define release_segments(mm) do { } while(0) diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S index 18453067..d4ec138 100644 --- a/arch/xtensa/kernel/entry.S +++ b/arch/xtensa/kernel/entry.S @@ -1833,34 +1833,6 @@ ENTRY(system_call) /* - * Create a kernel thread - * - * int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags) - * a2 a2 a3 a4 - */ - -ENTRY(kernel_thread) - entry a1, 16 - - mov a5, a2 # preserve fn over syscall - mov a7, a3 # preserve args over syscall - - movi a3, _CLONE_VM | _CLONE_UNTRACED - movi a2, __NR_clone - or a6, a4, a3 # arg0: flags - mov a3, a1 # arg1: sp - syscall - - beq a3, a1, 1f # branch if parent - mov a6, a7 # args - callx4 a5 # fn(args) - - movi a2, __NR_exit - syscall # return value of fn(args) still in a6 - -1: retw - -/* * Do a system call from kernel instead of calling sys_execve, so we end up * with proper pt_regs. * @@ -1958,3 +1930,16 @@ ENTRY(ret_from_fork) j common_exception_return +/* + * Kernel thread creation helper + * On entry, set up by copy_thread: a2 = thread_fn, a3 = thread_fn arg + * left from _switch_to: a6 = prev + */ +ENTRY(ret_from_kernel_thread) + + call4 schedule_tail + mov a6, a3 + callx4 a2 + call4 do_exit + +ENDPROC(ret_from_kernel_thread) diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c index 341c151..be52fe4 100644 --- a/arch/xtensa/kernel/process.c +++ b/arch/xtensa/kernel/process.c @@ -45,6 +45,7 @@ #include extern void ret_from_fork(void); +extern void ret_from_kernel_thread(void); struct task_struct *current_set[NR_CPUS] = {&init_task, }; @@ -158,18 +159,30 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) /* * Copy thread. * + * There are two modes in which this function is called: + * 1) Userspace thread creation, + * regs != NULL, usp_thread_fn is userspace stack pointer. + * It is expected to copy parent regs (in case CLONE_VM is not set + * in the clone_flags) and set up passed usp in the childregs. + * 2) Kernel thread creation, + * regs == NULL, usp_thread_fn is the function to run in the new thread + * and thread_fn_arg is its parameter. + * childregs are not used for the kernel threads. + * * The stack layout for the new thread looks like this: * - * +------------------------+ <- sp in childregs (= tos) + * +------------------------+ * | childregs | * +------------------------+ <- thread.sp = sp in dummy-frame * | dummy-frame | (saved in dummy-frame spill-area) * +------------------------+ * - * We create a dummy frame to return to ret_from_fork: - * a0 points to ret_from_fork (simulating a call4) + * We create a dummy frame to return to either ret_from_fork or + * ret_from_kernel_thread: + * a0 points to ret_from_fork/ret_from_kernel_thread (simulating a call4) * sp points to itself (thread.sp) - * a2, a3 are unused. + * a2, a3 are unused for userspace threads, + * a2 points to thread_fn, a3 holds thread_fn arg for kernel threads. * * Note: This is a pristine frame, so we don't need any spill region on top of * childregs. @@ -185,41 +198,37 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) * involved. Much simpler to just not copy those live frames across. */ -int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long unused, - struct task_struct * p, struct pt_regs * regs) +int copy_thread(unsigned long clone_flags, unsigned long usp_thread_fn, + unsigned long thread_fn_arg, + struct task_struct *p, struct pt_regs *unused) { - struct pt_regs *childregs; - unsigned long tos; - int user_mode = user_mode(regs); + struct pt_regs *childregs = task_pt_regs(p); #if (XTENSA_HAVE_COPROCESSORS || XTENSA_HAVE_IO_PORTS) struct thread_info *ti; #endif - /* Set up new TSS. */ - tos = (unsigned long)task_stack_page(p) + THREAD_SIZE; - if (user_mode) - childregs = (struct pt_regs*)(tos - PT_USER_SIZE); - else - childregs = (struct pt_regs*)tos - 1; - - /* This does not copy all the regs. In a bout of brilliance or madness, - ARs beyond a0-a15 exist past the end of the struct. */ - *childregs = *regs; - /* Create a call4 dummy-frame: a0 = 0, a1 = childregs. */ *((int*)childregs - 3) = (unsigned long)childregs; *((int*)childregs - 4) = 0; - childregs->areg[2] = 0; - p->set_child_tid = p->clear_child_tid = NULL; - p->thread.ra = MAKE_RA_FOR_CALL((unsigned long)ret_from_fork, 0x1); p->thread.sp = (unsigned long)childregs; - if (user_mode(regs)) { + if (!(p->flags & PF_KTHREAD)) { + struct pt_regs *regs = current_pt_regs(); + unsigned long usp = usp_thread_fn ? + usp_thread_fn : regs->areg[1]; + + p->thread.ra = MAKE_RA_FOR_CALL( + (unsigned long)ret_from_fork, 0x1); + /* This does not copy all the regs. + * In a bout of brilliance or madness, + * ARs beyond a0-a15 exist past the end of the struct. + */ + *childregs = *regs; childregs->areg[1] = usp; + childregs->areg[2] = 0; /* When sharing memory with the parent thread, the child usually starts on a pristine stack, so we have to reset @@ -254,11 +263,19 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, // FIXME: we need to set THREADPTR in thread_info... if (clone_flags & CLONE_SETTLS) childregs->areg[2] = childregs->areg[6]; - } else { - /* In kernel space, we start a new thread with a new stack. */ - childregs->wmask = 1; - childregs->areg[1] = tos; + p->thread.ra = MAKE_RA_FOR_CALL( + (unsigned long)ret_from_kernel_thread, 1); + + /* pass parameters to ret_from_kernel_thread: + * a2 = thread_fn, a3 = thread_fn arg + */ + *((int *)childregs - 1) = thread_fn_arg; + *((int *)childregs - 2) = usp_thread_fn; + + /* Childregs are only used when we're going to userspace + * in which case start_thread will set them up. + */ } #if (XTENSA_HAVE_COPROCESSORS || XTENSA_HAVE_IO_PORTS) @@ -354,8 +371,6 @@ long xtensa_clone(unsigned long clone_flags, unsigned long newsp, void __user *child_tid, long a5, struct pt_regs *regs) { - if (!newsp) - newsp = regs->areg[1]; return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid); } diff --git a/arch/xtensa/kernel/xtensa_ksyms.c b/arch/xtensa/kernel/xtensa_ksyms.c index a8b9f1f..afe058b 100644 --- a/arch/xtensa/kernel/xtensa_ksyms.c +++ b/arch/xtensa/kernel/xtensa_ksyms.c @@ -43,7 +43,6 @@ EXPORT_SYMBOL(__strncpy_user); EXPORT_SYMBOL(clear_page); EXPORT_SYMBOL(copy_page); -EXPORT_SYMBOL(kernel_thread); EXPORT_SYMBOL(empty_zero_page); /* -- cgit v0.10.2 From f0a1bf0859ffa059f9009d6a17e8d46241fb2161 Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Thu, 25 Oct 2012 11:10:51 +0400 Subject: xtensa: switch to generic kernel_execve() Signed-off-by: Max Filippov Signed-off-by: Chris Zankel diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 9525b70..0d1f36a 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -14,6 +14,7 @@ config XTENSA select MODULES_USE_ELF_RELA select GENERIC_PCI_IOMAP select GENERIC_KERNEL_THREAD + select GENERIC_KERNEL_EXECVE select ARCH_WANT_OPTIONAL_GPIOLIB help Xtensa processors are 32-bit RISC machines designed by Tensilica diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S index d4ec138..90bfc1d 100644 --- a/arch/xtensa/kernel/entry.S +++ b/arch/xtensa/kernel/entry.S @@ -1833,22 +1833,6 @@ ENTRY(system_call) /* - * Do a system call from kernel instead of calling sys_execve, so we end up - * with proper pt_regs. - * - * int kernel_execve(const char *fname, char *const argv[], charg *const envp[]) - * a2 a2 a3 a4 - */ - -ENTRY(kernel_execve) - entry a1, 16 - mov a6, a2 # arg0 is in a6 - movi a2, __NR_execve - syscall - - retw - -/* * Task switch. * * struct task* _switch_to (struct task* prev, struct task* next) @@ -1940,6 +1924,6 @@ ENTRY(ret_from_kernel_thread) call4 schedule_tail mov a6, a3 callx4 a2 - call4 do_exit + j common_exception_return ENDPROC(ret_from_kernel_thread) -- cgit v0.10.2 From dc241f2c1761bfdec85915f4bbf7e750663f3442 Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Thu, 25 Oct 2012 11:10:52 +0400 Subject: xtensa: switch to generic sys_execve() Signed-off-by: Max Filippov Signed-off-by: Chris Zankel diff --git a/arch/xtensa/include/asm/syscall.h b/arch/xtensa/include/asm/syscall.h index c1dacca..124aeee 100644 --- a/arch/xtensa/include/asm/syscall.h +++ b/arch/xtensa/include/asm/syscall.h @@ -10,7 +10,7 @@ struct pt_regs; struct sigaction; -asmlinkage long xtensa_execve(char*, char**, char**, struct pt_regs*); +asmlinkage long sys_execve(char*, char**, char**, struct pt_regs*); asmlinkage long xtensa_clone(unsigned long, unsigned long, struct pt_regs*); asmlinkage long xtensa_ptrace(long, long, long, long); asmlinkage long xtensa_sigreturn(struct pt_regs*); diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h index d9fa52d..f4e6eaa 100644 --- a/arch/xtensa/include/asm/unistd.h +++ b/arch/xtensa/include/asm/unistd.h @@ -1,6 +1,7 @@ #ifndef _XTENSA_UNISTD_H #define _XTENSA_UNISTD_H +#define __ARCH_WANT_SYS_EXECVE #include /* diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h index 1fd157f..9f36d0e 100644 --- a/arch/xtensa/include/uapi/asm/unistd.h +++ b/arch/xtensa/include/uapi/asm/unistd.h @@ -262,7 +262,7 @@ __SYSCALL(115, sys_sendmmsg, 4) #define __NR_clone 116 __SYSCALL(116, xtensa_clone, 5) #define __NR_execve 117 -__SYSCALL(117, xtensa_execve, 3) +__SYSCALL(117, sys_execve, 3) #define __NR_exit 118 __SYSCALL(118, sys_exit, 1) #define __NR_exit_group 119 diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c index be52fe4..09ae7bf 100644 --- a/arch/xtensa/kernel/process.c +++ b/arch/xtensa/kernel/process.c @@ -373,28 +373,3 @@ long xtensa_clone(unsigned long clone_flags, unsigned long newsp, { return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid); } - -/* - * xtensa_execve() executes a new program. - */ - -asmlinkage -long xtensa_execve(const char __user *name, - const char __user *const __user *argv, - const char __user *const __user *envp, - long a3, long a4, long a5, - struct pt_regs *regs) -{ - long error; - struct filename *filename; - - filename = getname(name); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - goto out; - error = do_execve(filename->name, argv, envp, regs); - putname(filename); -out: - return error; -} - -- cgit v0.10.2 From f82f64dd9f485e13f29f369772d4a0e868e5633a Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Thu, 25 Oct 2012 15:45:26 -0700 Subject: x86, mm: Undo incorrect revert in arch/x86/mm/init.c Commit 844ab6f9 x86, mm: Find_early_table_space based on ranges that are actually being mapped added back some lines back wrongly that has been removed in commit 7b16bbf97 Revert "x86/mm: Fix the size calculation of mapping tables" remove them again. Signed-off-by: Yinghai Lu Link: http://lkml.kernel.org/r/CAE9FiQW_vuaYQbmagVnxT2DGsYc=9tNeAbdBq53sYkitPOwxSQ@mail.gmail.com Acked-by: Jacob Shin Signed-off-by: H. Peter Anvin diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index bc287d6..d7aea41 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -65,10 +65,6 @@ static void __init find_early_table_space(struct map_range *mr, int nr_range) #ifdef CONFIG_X86_32 extra += PMD_SIZE; #endif - /* The first 2/4M doesn't use large pages. */ - if (mr[i].start < PMD_SIZE) - extra += range; - ptes += (extra + PAGE_SIZE - 1) >> PAGE_SHIFT; } else { ptes += (range + PAGE_SIZE - 1) >> PAGE_SHIFT; -- cgit v0.10.2 From 2008713c7174e5c0f207bac684c6df0939047009 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Wed, 24 Oct 2012 14:11:48 -0700 Subject: Makefile: Documentation for external tool should be correct If one includes documentation for an external tool, it should be correct. This is not: 1. Overriding the input to rngd should typically be neither necessary nor desired. This is especially so since newer versions of rngd support a number of different *types* of sources. 2. The default kernel-exported device is called /dev/hwrng not /dev/hwrandom nor /dev/hw_random (both of which were used in the past; however, kernel and udev seem to have converged on /dev/hwrng.) Overall it is better if the documentation for rngd is kept with rngd rather than in a kernel Makefile. Signed-off-by: H. Peter Anvin Cc: David Howells Cc: Jeff Garzik Signed-off-by: Linus Torvalds diff --git a/kernel/Makefile b/kernel/Makefile index 0dfeca4..86e3285 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -174,10 +174,8 @@ signing_key.priv signing_key.x509: x509.genkey @echo "###" @echo "### If this takes a long time, you might wish to run rngd in the" @echo "### background to keep the supply of entropy topped up. It" - @echo "### needs to be run as root, and should use a hardware random" - @echo "### number generator if one is available, eg:" - @echo "###" - @echo "### rngd -r /dev/hwrandom" + @echo "### needs to be run as root, and uses a hardware random" + @echo "### number generator if one is available." @echo "###" openssl req -new -nodes -utf8 $(sign_key_with_hash) -days 36500 -batch \ -x509 -config x509.genkey \ -- cgit v0.10.2 From aea2bf6a57a9e4596bfad164f986ba10ddc6adf3 Mon Sep 17 00:00:00 2001 From: Jason Gerecke Date: Sun, 21 Oct 2012 00:38:03 -0700 Subject: Input: wacom - handle split-sensor devices with internal hubs Like our other pen-and-touch products, the Cintiq 24HD touch needs data to be shared between its two sensors to facilitate proximity-based palm rejection. Unlike other tablets that report sensor data through separate interfaces of the same USB device, the Cintiq 24HD touch has separate USB devices that are connected to an internal USB hub. This patch makes it possible to designate the USB VID/PID of the other device so that the two may share data. To ensure we don't accidentally link to a sensor from a physically separate device (if several have been plugged in), we limit the search to siblings (i.e., devices directly connected to the same hub). Signed-off-by: Jason Gerecke Signed-off-by: Dmitry Torokhov Signed-off-by: Linus Torvalds diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index 9edf980..8b89e15 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -613,6 +613,30 @@ struct wacom_usbdev_data { static LIST_HEAD(wacom_udev_list); static DEFINE_MUTEX(wacom_udev_list_lock); +static struct usb_device *wacom_get_sibling(struct usb_device *dev, int vendor, int product) +{ + int port1; + struct usb_device *sibling; + + if (vendor == 0 && product == 0) + return dev; + + if (dev->parent == NULL) + return NULL; + + usb_hub_for_each_child(dev->parent, port1, sibling) { + struct usb_device_descriptor *d; + if (sibling == NULL) + continue; + + d = &sibling->descriptor; + if (d->idVendor == vendor && d->idProduct == product) + return sibling; + } + + return NULL; +} + static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) { struct wacom_usbdev_data *data; @@ -1257,13 +1281,19 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { + struct usb_device *other_dev; + /* Append the device type to the name */ strlcat(wacom_wac->name, features->device_type == BTN_TOOL_PEN ? " Pen" : " Finger", sizeof(wacom_wac->name)); - error = wacom_add_shared_data(wacom_wac, dev); + + other_dev = wacom_get_sibling(dev, features->oVid, features->oPid); + if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL) + other_dev = dev; + error = wacom_add_shared_data(wacom_wac, other_dev); if (error) goto fail3; } diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index c3468c8..21d1f4e 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -1340,7 +1340,8 @@ void wacom_setup_device_quirks(struct wacom_features *features) /* these device have multiple inputs */ if (features->type >= WIRELESS || - (features->type >= INTUOS5S && features->type <= INTUOS5L)) + (features->type >= INTUOS5S && features->type <= INTUOS5L) || + (features->oVid && features->oPid)) features->quirks |= WACOM_QUIRK_MULTI_INPUT; /* quirk for bamboo touch with 2 low res touches */ diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h index 96c185c..3f926ec 100644 --- a/drivers/input/tablet/wacom_wac.h +++ b/drivers/input/tablet/wacom_wac.h @@ -109,6 +109,8 @@ struct wacom_features { int distance_fuzz; unsigned quirks; unsigned touch_max; + int oVid; + int oPid; }; struct wacom_shared { -- cgit v0.10.2 From b1e4279e4ef5549bf6ebf8f6f17dd26f0af8e8a2 Mon Sep 17 00:00:00 2001 From: Jason Gerecke Date: Sun, 21 Oct 2012 00:38:04 -0700 Subject: Input: wacom - add touch sensor support for Cintiq 24HD touch Decode multitouch reports from the touch sensor of the Cintiq 24HD touch. Signed-off-by: Jason Gerecke Signed-off-by: Dmitry Torokhov Signed-off-by: Linus Torvalds diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index 8b89e15..2c1e12b 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -391,7 +391,7 @@ static int wacom_parse_hid(struct usb_interface *intf, features->pktlen = WACOM_PKGLEN_TPC2FG; } - if (features->type == MTSCREEN) + if (features->type == MTSCREEN || WACOM_24HDT) features->pktlen = WACOM_PKGLEN_MTOUCH; if (features->type == BAMBOO_PT) { @@ -402,6 +402,14 @@ static int wacom_parse_hid(struct usb_interface *intf, features->x_max = get_unaligned_le16(&report[i + 8]); i += 15; + } else if (features->type == WACOM_24HDT) { + features->x_max = + get_unaligned_le16(&report[i + 3]); + features->x_phy = + get_unaligned_le16(&report[i + 8]); + features->unit = report[i - 1]; + features->unitExpo = report[i - 3]; + i += 12; } else { features->x_max = get_unaligned_le16(&report[i + 3]); @@ -434,6 +442,12 @@ static int wacom_parse_hid(struct usb_interface *intf, features->y_phy = get_unaligned_le16(&report[i + 6]); i += 7; + } else if (type == WACOM_24HDT) { + features->y_max = + get_unaligned_le16(&report[i + 3]); + features->y_phy = + get_unaligned_le16(&report[i - 2]); + i += 7; } else if (type == BAMBOO_PT) { features->y_phy = get_unaligned_le16(&report[i + 3]); @@ -541,6 +555,9 @@ static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_feat /* MT Tablet PC touch */ return wacom_set_device_mode(intf, 3, 4, 4); } + else if (features->type == WACOM_24HDT) { + return wacom_set_device_mode(intf, 18, 3, 2); + } } else if (features->device_type == BTN_TOOL_PEN) { if (features->type <= BAMBOO_PT && features->type != WIRELESS) { return wacom_set_device_mode(intf, 2, 2, 2); diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index 21d1f4e..aa60101 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -806,6 +806,70 @@ static int find_slot_from_contactid(struct wacom_wac *wacom, int contactid) return -1; } +static int int_dist(int x1, int y1, int x2, int y2) +{ + int x = x2 - x1; + int y = y2 - y1; + + return int_sqrt(x*x + y*y); +} + +static int wacom_24hdt_irq(struct wacom_wac *wacom) +{ + struct input_dev *input = wacom->input; + char *data = wacom->data; + int i; + int current_num_contacts = data[61]; + int contacts_to_send = 0; + + /* + * First packet resets the counter since only the first + * packet in series will have non-zero current_num_contacts. + */ + if (current_num_contacts) + wacom->num_contacts_left = current_num_contacts; + + /* There are at most 4 contacts per packet */ + contacts_to_send = min(4, wacom->num_contacts_left); + + for (i = 0; i < contacts_to_send; i++) { + int offset = (WACOM_BYTES_PER_24HDT_PACKET * i) + 1; + bool touch = data[offset] & 0x1 && !wacom->shared->stylus_in_proximity; + int id = data[offset + 1]; + int slot = find_slot_from_contactid(wacom, id); + + if (slot < 0) + continue; + input_mt_slot(input, slot); + input_mt_report_slot_state(input, MT_TOOL_FINGER, touch); + + if (touch) { + int t_x = le16_to_cpup((__le16 *)&data[offset + 2]); + int c_x = le16_to_cpup((__le16 *)&data[offset + 4]); + int t_y = le16_to_cpup((__le16 *)&data[offset + 6]); + int c_y = le16_to_cpup((__le16 *)&data[offset + 8]); + int w = le16_to_cpup((__le16 *)&data[offset + 10]); + int h = le16_to_cpup((__le16 *)&data[offset + 12]); + + input_report_abs(input, ABS_MT_POSITION_X, t_x); + input_report_abs(input, ABS_MT_POSITION_Y, t_y); + input_report_abs(input, ABS_MT_TOUCH_MAJOR, min(w,h)); + input_report_abs(input, ABS_MT_WIDTH_MAJOR, min(w, h) + int_dist(t_x, t_y, c_x, c_y)); + input_report_abs(input, ABS_MT_WIDTH_MINOR, min(w, h)); + input_report_abs(input, ABS_MT_ORIENTATION, w > h); + } + wacom->slots[slot] = touch ? id : -1; + } + + input_mt_report_pointer_emulation(input, true); + + wacom->num_contacts_left -= contacts_to_send; + if (wacom->num_contacts_left <= 0) + wacom->num_contacts_left = 0; + + return 1; +} + static int wacom_mt_touch(struct wacom_wac *wacom) { struct input_dev *input = wacom->input; @@ -1255,6 +1319,10 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len) sync = wacom_intuos_irq(wacom_wac); break; + case WACOM_24HDT: + sync = wacom_24hdt_irq(wacom_wac); + break; + case INTUOS5S: case INTUOS5: case INTUOS5L: @@ -1576,6 +1644,15 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev, __set_bit(INPUT_PROP_POINTER, input_dev->propbit); break; + case WACOM_24HDT: + if (features->device_type == BTN_TOOL_FINGER) { + input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, features->x_max, 0, 0); + input_set_abs_params(input_dev, ABS_MT_WIDTH_MAJOR, 0, features->x_max, 0, 0); + input_set_abs_params(input_dev, ABS_MT_WIDTH_MINOR, 0, features->y_max, 0, 0); + input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 0, 1, 0, 0); + } + /* fall through */ + case MTSCREEN: if (features->device_type == BTN_TOOL_FINGER) { wacom_wac->slots = kmalloc(features->touch_max * @@ -1870,8 +1947,11 @@ static const struct wacom_features wacom_features_0xF4 = { "Wacom Cintiq 24HD", WACOM_PKGLEN_INTUOS, 104480, 65600, 2047, 63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xF8 = - { "Wacom Cintiq 24HD touch", WACOM_PKGLEN_INTUOS, 104480, 65600, 2047, - 63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; + { "Wacom Cintiq 24HD touch", WACOM_PKGLEN_INTUOS, 104480, 65600, 2047, /* Pen */ + 63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, .oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf6 }; +static const struct wacom_features wacom_features_0xF6 = + { "Wacom Cintiq 24HD touch", .type = WACOM_24HDT, /* Touch */ + .oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf8, .touch_max = 10 }; static const struct wacom_features wacom_features_0x3F = { "Wacom Cintiq 21UX", WACOM_PKGLEN_INTUOS, 87200, 65600, 1023, 63, CINTIQ, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; @@ -2114,6 +2194,7 @@ const struct usb_device_id wacom_ids[] = { { USB_DEVICE_WACOM(0x47) }, { USB_DEVICE_WACOM(0xF4) }, { USB_DEVICE_WACOM(0xF8) }, + { USB_DEVICE_WACOM(0xF6) }, { USB_DEVICE_WACOM(0xFA) }, { USB_DEVICE_LENOVO(0x6004) }, { } diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h index 3f926ec..345f1e7 100644 --- a/drivers/input/tablet/wacom_wac.h +++ b/drivers/input/tablet/wacom_wac.h @@ -29,6 +29,7 @@ /* wacom data size per MT contact */ #define WACOM_BYTES_PER_MT_PACKET 11 +#define WACOM_BYTES_PER_24HDT_PACKET 14 /* device IDs */ #define STYLUS_DEVICE_ID 0x02 @@ -49,6 +50,7 @@ #define WACOM_REPORT_TPCHID 15 #define WACOM_REPORT_TPCST 16 #define WACOM_REPORT_TPC1FGE 18 +#define WACOM_REPORT_24HDT 1 /* device quirks */ #define WACOM_QUIRK_MULTI_INPUT 0x0001 @@ -81,6 +83,7 @@ enum { WACOM_MO, WIRELESS, BAMBOO_PT, + WACOM_24HDT, TABLETPC, /* add new TPC below */ TABLETPCE, TABLETPC2FG, -- cgit v0.10.2 From 879dca019dc43a1622edca3e7dde644b14b5acc5 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Fri, 26 Oct 2012 01:05:56 +0200 Subject: ACPI: missing break We handle NOTIFY_THROTTLING so don't then fall through to unsupported event. Signed-off-by: Alan Cox Signed-off-by: Rafael J. Wysocki diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index e78c2a5..bd4e5dc 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -409,6 +409,7 @@ static void acpi_processor_notify(struct acpi_device *device, u32 event) acpi_bus_generate_proc_event(device, event, 0); acpi_bus_generate_netlink_event(device->pnp.device_class, dev_name(&device->dev), event, 0); + break; default: ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Unsupported event [0x%x]\n", event)); -- cgit v0.10.2 From 8bc5e4ea3ea0e24142db2dc941233eab2a223ed4 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 26 Oct 2012 00:10:32 -0400 Subject: ktest: Fix ktest confusion with CONFIG_MODULES_USE_ELF_RELA In order to decide if ktest should bother installing modules on the target box, it checks if the config file has CONFIG_MODULES=y. But it also checks if the '=y' part exists. It only will install modules if the config exists and is set with '=y'. But as the regex that was used tests: /^CONFIG_MODULES(=y)?/ this will also match: CONFIG_MODULES_USE_ELF_RELA as the '=y' part was optional and it did not test the rest of the line. When this happens, ktest will stop checking the rest of the configs but it will also think that no modules are needed to be installed. What it should do is only jump out of the loop if it actually found a CONFIG_MODULES that is set to true. Otherwise, ktest wont install the necessary modules needed for proper booting of the test target. Signed-off-by: Steven Rostedt diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl index b51d787..c7ba761 100755 --- a/tools/testing/ktest/ktest.pl +++ b/tools/testing/ktest/ktest.pl @@ -1740,8 +1740,10 @@ sub install { open(IN, "$output_config") or dodie("Can't read config file"); while () { if (/CONFIG_MODULES(=y)?/) { - $install_mods = 1 if (defined($1)); - last; + if (defined($1)) { + $install_mods = 1; + last; + } } } close(IN); -- cgit v0.10.2 From 697575896670ba9e76760ce8bbc1f5a3001967d6 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Fri, 26 Oct 2012 07:39:13 +0200 Subject: Revert "ARM: dma-mapping: support debug_dma_mapping_error" This reverts commit 871ae57adc5ed092c1341f411514d0e8482e2611, which is scheduled for v3.8 and accidently got into v3.7-rc series. Signed-off-by: Marek Szyprowski diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 78d8e9b..2300484 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -91,7 +91,6 @@ static inline dma_addr_t virt_to_dma(struct device *dev, void *addr) */ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { - debug_dma_mapping_error(dev, dma_addr); return dma_addr == DMA_ERROR_CODE; } -- cgit v0.10.2 From f65e384bec59ef35dfa77455181af2ecf7a7ef44 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Thu, 25 Oct 2012 20:42:10 +0200 Subject: omapdss: dss: Fix clocks on OMAP363x Commit 185bae1095188aa199c9be64d6030d8dbfc65e0a ("OMAPDSS: DSS: Cleanup cpu_is_xxxx checks") broke the DSS clocks configuration by erroneously using the clock parameters applicable to all other OMAP34xx SoCs for the OMAP363x. This went unnoticed probably because the cpu_is_omap34xx() class check wasn't seen as matching the OMAP363x subclass. Fix it by checking for the OMAP363x subclass before checking for the OMAP34xx class. Signed-off-by: Laurent Pinchart Signed-off-by: Tomi Valkeinen diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c index 2ab1c3e..0bb7406 100644 --- a/drivers/video/omap2/dss/dss.c +++ b/drivers/video/omap2/dss/dss.c @@ -805,10 +805,10 @@ static int __init dss_init_features(struct device *dev) if (cpu_is_omap24xx()) src = &omap24xx_dss_feats; - else if (cpu_is_omap34xx()) - src = &omap34xx_dss_feats; else if (cpu_is_omap3630()) src = &omap3630_dss_feats; + else if (cpu_is_omap34xx()) + src = &omap34xx_dss_feats; else if (cpu_is_omap44xx()) src = &omap44xx_dss_feats; else if (soc_is_omap54xx()) -- cgit v0.10.2 From dffc70ade1d13edd186f542718c4d78a31d92fb8 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Sun, 21 Oct 2012 20:54:26 +0800 Subject: OMAPDSS: HDMI: fix missing unlock on error in hdmi_dump_regs() Add the missing unlock on the error handling path in function hdmi_dump_regs(). Signed-off-by: Wei Yongjun Reviewed-by: Sumit Semwal Signed-off-by: Tomi Valkeinen diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c index a48a7dd..8c9b8b3 100644 --- a/drivers/video/omap2/dss/hdmi.c +++ b/drivers/video/omap2/dss/hdmi.c @@ -644,8 +644,10 @@ static void hdmi_dump_regs(struct seq_file *s) { mutex_lock(&hdmi.lock); - if (hdmi_runtime_get()) + if (hdmi_runtime_get()) { + mutex_unlock(&hdmi.lock); return; + } hdmi.ip_data.ops->dump_wrapper(&hdmi.ip_data, s); hdmi.ip_data.ops->dump_pll(&hdmi.ip_data, s); -- cgit v0.10.2 From c6fdd8e5d0c65bb8821dc6da26ee1a2ddd58b3cc Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Wed, 24 Oct 2012 08:44:32 +0000 Subject: bas_gigaset: fix pre_reset handling The delayed work function int_in_work() may call usb_reset_device() and thus, indirectly, the driver's pre_reset method. Trying to cancel the work synchronously in that situation would deadlock. Fix by avoiding cancel_work_sync() in the pre_reset method. If the reset was NOT initiated by int_in_work() this might cause int_in_work() to run after the post_reset method, with urb_int_in already resubmitted, so handle that case gracefully. Signed-off-by: Tilman Schmidt Signed-off-by: David S. Miller diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c index 5275887..c44950d 100644 --- a/drivers/isdn/gigaset/bas-gigaset.c +++ b/drivers/isdn/gigaset/bas-gigaset.c @@ -617,7 +617,13 @@ static void int_in_work(struct work_struct *work) if (rc == 0) /* success, resubmit interrupt read URB */ rc = usb_submit_urb(urb, GFP_ATOMIC); - if (rc != 0 && rc != -ENODEV) { + + switch (rc) { + case 0: /* success */ + case -ENODEV: /* device gone */ + case -EINVAL: /* URB already resubmitted, or terminal badness */ + break; + default: /* failure: try to recover by resetting the device */ dev_err(cs->dev, "clear halt failed: %s\n", get_usb_rcmsg(rc)); rc = usb_lock_device_for_reset(ucs->udev, ucs->interface); if (rc == 0) { @@ -2442,7 +2448,9 @@ static void gigaset_disconnect(struct usb_interface *interface) } /* gigaset_suspend - * This function is called before the USB connection is suspended. + * This function is called before the USB connection is suspended + * or before the USB device is reset. + * In the latter case, message == PMSG_ON. */ static int gigaset_suspend(struct usb_interface *intf, pm_message_t message) { @@ -2498,7 +2506,12 @@ static int gigaset_suspend(struct usb_interface *intf, pm_message_t message) del_timer_sync(&ucs->timer_atrdy); del_timer_sync(&ucs->timer_cmd_in); del_timer_sync(&ucs->timer_int_in); - cancel_work_sync(&ucs->int_in_wq); + + /* don't try to cancel int_in_wq from within reset as it + * might be the one requesting the reset + */ + if (message.event != PM_EVENT_ON) + cancel_work_sync(&ucs->int_in_wq); gig_dbg(DEBUG_SUSPEND, "suspend complete"); return 0; -- cgit v0.10.2 From 00a89180e5419f6567135d86e66a989a1b610b45 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Fri, 26 Oct 2012 09:55:31 +0300 Subject: Revert "usb: musb: use DMA mode 1 whenever possible" This reverts commit 4f3e8d263d34e52e75b5adfa14811467d3033d8e. it turns out that current implementation of Mode 1 DMA added a few regressions to some users, so we need to revert this patch and let author work on a better version of Mode 1 DMA support. Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index d0b87e7..b6b84da 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -707,11 +707,12 @@ static void rxstate(struct musb *musb, struct musb_request *req) fifo_count = musb_readw(epio, MUSB_RXCOUNT); /* - * use mode 1 only if we expect data of at least ep packet_sz - * and have not yet received a short packet + * Enable Mode 1 on RX transfers only when short_not_ok flag + * is set. Currently short_not_ok flag is set only from + * file_storage and f_mass_storage drivers */ - if ((request->length - request->actual >= musb_ep->packet_sz) && - (fifo_count >= musb_ep->packet_sz)) + + if (request->short_not_ok && fifo_count == musb_ep->packet_sz) use_mode_1 = 1; else use_mode_1 = 0; @@ -727,6 +728,27 @@ static void rxstate(struct musb *musb, struct musb_request *req) c = musb->dma_controller; channel = musb_ep->dma; + /* We use DMA Req mode 0 in rx_csr, and DMA controller operates in + * mode 0 only. So we do not get endpoint interrupts due to DMA + * completion. We only get interrupts from DMA controller. + * + * We could operate in DMA mode 1 if we knew the size of the tranfer + * in advance. For mass storage class, request->length = what the host + * sends, so that'd work. But for pretty much everything else, + * request->length is routinely more than what the host sends. For + * most these gadgets, end of is signified either by a short packet, + * or filling the last byte of the buffer. (Sending extra data in + * that last pckate should trigger an overflow fault.) But in mode 1, + * we don't get DMA completion interrupt for short packets. + * + * Theoretically, we could enable DMAReq irq (MUSB_RXCSR_DMAMODE = 1), + * to get endpoint interrupt on every DMA req, but that didn't seem + * to work reliably. + * + * REVISIT an updated g_file_storage can set req->short_not_ok, which + * then becomes usable as a runtime "use mode 1" hint... + */ + /* Experimental: Mode1 works with mass storage use cases */ if (use_mode_1) { csr |= MUSB_RXCSR_AUTOCLEAR; -- cgit v0.10.2 From ad2fab36d7922401c4576fb7ea9b21a47a29a17f Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Thu, 25 Oct 2012 14:03:03 +0300 Subject: gpiolib: Don't return -EPROBE_DEFER to sysfs, or for invalid gpios gpios requested with invalid numbers, or gpios requested from userspace via sysfs should not try to be deferred on failure. Cc: stable@kernel.org Signed-off-by: Mathias Nyman Signed-off-by: Linus Walleij diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 5d6c71e..1c8d9e3 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -623,9 +623,11 @@ static ssize_t export_store(struct class *class, */ status = gpio_request(gpio, "sysfs"); - if (status < 0) + if (status < 0) { + if (status == -EPROBE_DEFER) + status = -ENODEV; goto done; - + } status = gpio_export(gpio, true); if (status < 0) gpio_free(gpio); @@ -1191,8 +1193,10 @@ int gpio_request(unsigned gpio, const char *label) spin_lock_irqsave(&gpio_lock, flags); - if (!gpio_is_valid(gpio)) + if (!gpio_is_valid(gpio)) { + status = -EINVAL; goto done; + } desc = &gpio_desc[gpio]; chip = desc->chip; if (chip == NULL) -- cgit v0.10.2 From 7208ca300725ebc1dd4c60511ed67a69c684eb91 Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Thu, 25 Oct 2012 01:12:47 +0000 Subject: net/mlx4_en: Fix double-release-range in tx-rings The QP range is reserved as a single block. However, when freeing the en resources, the tx-ring QPs are released both in mlx4_en_destroy_tx_ring (one at a time) and in mlx4_en_free_resources (as a block release). Fix by eliminating the one-at-a-time release in mlx4_en_destroy_tx_ring. Signed-off-by: Jack Morgenstein Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c index c10e3a6..0a51095 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c @@ -143,7 +143,6 @@ void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv, mlx4_bf_free(mdev->dev, &ring->bf); mlx4_qp_remove(mdev->dev, &ring->qp); mlx4_qp_free(mdev->dev, &ring->qp); - mlx4_qp_release_range(mdev->dev, ring->qpn, 1); mlx4_en_unmap_buffer(&ring->wqres.buf); mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size); kfree(ring->bounce_buf); -- cgit v0.10.2 From 2b39a06198a0fbaf44a69f435c5d2b4280a0c10e Mon Sep 17 00:00:00 2001 From: Moni Shoua Date: Thu, 25 Oct 2012 01:12:48 +0000 Subject: net/mlx4_en: Don't use vlan tag value as an indication for vlan presence The vlan tag can be zero. This is why it can't serve as an indication that packet requires VLAN header in the TX flow. Signed-off-by: Moni Shoua Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c index 0a51095..b35094c 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c @@ -711,7 +711,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev) if (bounce) tx_desc = mlx4_en_bounce_to_desc(priv, ring, index, desc_size); - if (ring->bf_enabled && desc_size <= MAX_BF && !bounce && !vlan_tag) { + if (ring->bf_enabled && desc_size <= MAX_BF && !bounce && !vlan_tx_tag_present(skb)) { *(__be32 *) (&tx_desc->ctrl.vlan_tag) |= cpu_to_be32(ring->doorbell_qpn); op_own |= htonl((bf_index & 0xffff) << 8); /* Ensure new descirptor hits memory -- cgit v0.10.2 From bfc0d8c3de31a51e671e2c1564fd194fa6b00179 Mon Sep 17 00:00:00 2001 From: Dotan Barak Date: Thu, 25 Oct 2012 01:12:49 +0000 Subject: net/mlx4_core: Unmap UAR also in the case of error flow If a failure takes place during the EQ creation, we need to unmap the UAR memory block too. Signed-off-by: Dotan Barak Signed-off-by: Uri Habusha Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c index 51c7649..083767b 100644 --- a/drivers/net/ethernet/mellanox/mlx4/eq.c +++ b/drivers/net/ethernet/mellanox/mlx4/eq.c @@ -843,6 +843,18 @@ static void __iomem *mlx4_get_eq_uar(struct mlx4_dev *dev, struct mlx4_eq *eq) return priv->eq_table.uar_map[index] + 0x800 + 8 * (eq->eqn % 4); } +static void mlx4_unmap_uar(struct mlx4_dev *dev) +{ + struct mlx4_priv *priv = mlx4_priv(dev); + int i; + + for (i = 0; i < mlx4_num_eq_uar(dev); ++i) + if (priv->eq_table.uar_map[i]) { + iounmap(priv->eq_table.uar_map[i]); + priv->eq_table.uar_map[i] = NULL; + } +} + static int mlx4_create_eq(struct mlx4_dev *dev, int nent, u8 intr, struct mlx4_eq *eq) { @@ -1207,6 +1219,7 @@ err_out_unmap: mlx4_free_irqs(dev); err_out_bitmap: + mlx4_unmap_uar(dev); mlx4_bitmap_cleanup(&priv->eq_table.bitmap); err_out_free: @@ -1231,10 +1244,7 @@ void mlx4_cleanup_eq_table(struct mlx4_dev *dev) if (!mlx4_is_slave(dev)) mlx4_unmap_clr_int(dev); - for (i = 0; i < mlx4_num_eq_uar(dev); ++i) - if (priv->eq_table.uar_map[i]) - iounmap(priv->eq_table.uar_map[i]); - + mlx4_unmap_uar(dev); mlx4_bitmap_cleanup(&priv->eq_table.bitmap); kfree(priv->eq_table.uar_map); -- cgit v0.10.2 From 39707c2a3ba5011038b363f84d37c8a98d2d9db1 Mon Sep 17 00:00:00 2001 From: Hemant Kumar Date: Thu, 25 Oct 2012 18:17:54 +0000 Subject: net: usb: Fix memory leak on Tx data path Driver anchors the tx urbs and defers the urb submission if a transmit request comes when the interface is suspended. Anchoring urb increments the urb reference count. These deferred urbs are later accessed by calling usb_get_from_anchor() for submission during interface resume. usb_get_from_anchor() unanchors the urb but urb reference count remains same. This causes the urb reference count to remain non-zero after usb_free_urb() gets called and urb never gets freed. Hence call usb_put_urb() after anchoring the urb to properly balance the reference count for these deferred urbs. Also, unanchor these deferred urbs during disconnect, to free them up. Signed-off-by: Hemant Kumar Acked-by: Oliver Neukum Signed-off-by: David S. Miller diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index f9819d1..cb04f90 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1158,6 +1158,7 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb, usb_anchor_urb(urb, &dev->deferred); /* no use to process more packets */ netif_stop_queue(net); + usb_put_urb(urb); spin_unlock_irqrestore(&dev->txq.lock, flags); netdev_dbg(dev->net, "Delaying transmission for resumption\n"); goto deferred; @@ -1310,6 +1311,8 @@ void usbnet_disconnect (struct usb_interface *intf) cancel_work_sync(&dev->kevent); + usb_scuttle_anchored_urbs(&dev->deferred); + if (dev->driver_info->unbind) dev->driver_info->unbind (dev, intf); -- cgit v0.10.2 From f8295ec22cb0f1ee6849b862addbfa3ea9320755 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Wed, 24 Oct 2012 12:10:34 +0000 Subject: qmi_wwan/cdc_ether: move Novatel 551 and E362 to qmi_wwan MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit These devices provide QMI and ethernet functionality via a standard CDC ethernet descriptor. But when driven by cdc_ether, the QMI functionality is unavailable because only cdc_ether can claim the USB interface. Thus blacklist the devices in cdc_ether and add their IDs to qmi_wwan, which enables both QMI and ethernet simultaneously. Signed-off-by: Dan Williams Cc: stable@vger.kernel.org Acked-by: Greg Kroah-Hartman Acked-by: Bjørn Mork Signed-off-by: David S. Miller diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index a03de71..d012982 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -592,6 +592,32 @@ static const struct usb_device_id products [] = { .driver_info = 0, }, +/* Novatel USB551L and MC551 - handled by qmi_wwan */ +{ + .match_flags = USB_DEVICE_ID_MATCH_VENDOR + | USB_DEVICE_ID_MATCH_PRODUCT + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = NOVATEL_VENDOR_ID, + .idProduct = 0xB001, + .bInterfaceClass = USB_CLASS_COMM, + .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, + .bInterfaceProtocol = USB_CDC_PROTO_NONE, + .driver_info = 0, +}, + +/* Novatel E362 - handled by qmi_wwan */ +{ + .match_flags = USB_DEVICE_ID_MATCH_VENDOR + | USB_DEVICE_ID_MATCH_PRODUCT + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = NOVATEL_VENDOR_ID, + .idProduct = 0x9010, + .bInterfaceClass = USB_CLASS_COMM, + .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, + .bInterfaceProtocol = USB_CDC_PROTO_NONE, + .driver_info = 0, +}, + /* * WHITELIST!!! * @@ -604,21 +630,6 @@ static const struct usb_device_id products [] = { * because of bugs/quirks in a given product (like Zaurus, above). */ { - /* Novatel USB551L */ - /* This match must come *before* the generic CDC-ETHER match so that - * we get FLAG_WWAN set on the device, since it's descriptors are - * generic CDC-ETHER. - */ - .match_flags = USB_DEVICE_ID_MATCH_VENDOR - | USB_DEVICE_ID_MATCH_PRODUCT - | USB_DEVICE_ID_MATCH_INT_INFO, - .idVendor = NOVATEL_VENDOR_ID, - .idProduct = 0xB001, - .bInterfaceClass = USB_CLASS_COMM, - .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, - .bInterfaceProtocol = USB_CDC_PROTO_NONE, - .driver_info = (unsigned long)&wwan_info, -}, { /* ZTE (Vodafone) K3805-Z */ .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 9d23ba2..3b566fa 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -369,6 +369,20 @@ static const struct usb_device_id products[] = { USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf1, 0xff), .driver_info = (unsigned long)&qmi_wwan_info, }, + { /* Novatel USB551L and MC551 */ + USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0xb001, + USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, + USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&qmi_wwan_info, + }, + { /* Novatel E362 */ + USB_DEVICE_AND_INTERFACE_INFO(0x1410, 0x9010, + USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, + USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&qmi_wwan_info, + }, /* 3. Combined interface devices matching on interface number */ {QMI_FIXED_INTF(0x19d2, 0x0002, 1)}, -- cgit v0.10.2 From 3da3fff8006c608f19a51859d44ba47ca8b41461 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 25 Oct 2012 07:25:20 +0000 Subject: tilegx: fix some issues in the SW TSO support This change correctly computes the header length and data length in the fragments to avoid a bug where we would end up with extremely slow performance. Also adopt use of skb_frag_size() accessor. Signed-off-by: Chris Metcalf Cc: stable@vger.kernel.org [v3.6] Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/tile/tilegx.c b/drivers/net/ethernet/tile/tilegx.c index 4e2a162..4e98100 100644 --- a/drivers/net/ethernet/tile/tilegx.c +++ b/drivers/net/ethernet/tile/tilegx.c @@ -1334,11 +1334,11 @@ static int tso_count_edescs(struct sk_buff *skb) { struct skb_shared_info *sh = skb_shinfo(skb); unsigned int sh_len = skb_transport_offset(skb) + tcp_hdrlen(skb); - unsigned int data_len = skb->data_len + skb->hdr_len - sh_len; + unsigned int data_len = skb->len - sh_len; unsigned int p_len = sh->gso_size; long f_id = -1; /* id of the current fragment */ - long f_size = skb->hdr_len; /* size of the current fragment */ - long f_used = sh_len; /* bytes used from the current fragment */ + long f_size = skb_headlen(skb) - sh_len; /* current fragment size */ + long f_used = 0; /* bytes used from the current fragment */ long n; /* size of the current piece of payload */ int num_edescs = 0; int segment; @@ -1353,7 +1353,7 @@ static int tso_count_edescs(struct sk_buff *skb) /* Advance as needed. */ while (f_used >= f_size) { f_id++; - f_size = sh->frags[f_id].size; + f_size = skb_frag_size(&sh->frags[f_id]); f_used = 0; } @@ -1384,13 +1384,13 @@ static void tso_headers_prepare(struct sk_buff *skb, unsigned char *headers, struct iphdr *ih; struct tcphdr *th; unsigned int sh_len = skb_transport_offset(skb) + tcp_hdrlen(skb); - unsigned int data_len = skb->data_len + skb->hdr_len - sh_len; + unsigned int data_len = skb->len - sh_len; unsigned char *data = skb->data; unsigned int ih_off, th_off, p_len; unsigned int isum_seed, tsum_seed, id, seq; long f_id = -1; /* id of the current fragment */ - long f_size = skb->hdr_len; /* size of the current fragment */ - long f_used = sh_len; /* bytes used from the current fragment */ + long f_size = skb_headlen(skb) - sh_len; /* current fragment size */ + long f_used = 0; /* bytes used from the current fragment */ long n; /* size of the current piece of payload */ int segment; @@ -1405,7 +1405,7 @@ static void tso_headers_prepare(struct sk_buff *skb, unsigned char *headers, isum_seed = ((0xFFFF - ih->check) + (0xFFFF - ih->tot_len) + (0xFFFF - ih->id)); - tsum_seed = th->check + (0xFFFF ^ htons(sh_len + data_len)); + tsum_seed = th->check + (0xFFFF ^ htons(skb->len)); id = ntohs(ih->id); seq = ntohl(th->seq); @@ -1444,7 +1444,7 @@ static void tso_headers_prepare(struct sk_buff *skb, unsigned char *headers, /* Advance as needed. */ while (f_used >= f_size) { f_id++; - f_size = sh->frags[f_id].size; + f_size = skb_frag_size(&sh->frags[f_id]); f_used = 0; } @@ -1478,14 +1478,14 @@ static void tso_egress(struct net_device *dev, gxio_mpipe_equeue_t *equeue, struct tile_net_priv *priv = netdev_priv(dev); struct skb_shared_info *sh = skb_shinfo(skb); unsigned int sh_len = skb_transport_offset(skb) + tcp_hdrlen(skb); - unsigned int data_len = skb->data_len + skb->hdr_len - sh_len; + unsigned int data_len = skb->len - sh_len; unsigned int p_len = sh->gso_size; gxio_mpipe_edesc_t edesc_head = { { 0 } }; gxio_mpipe_edesc_t edesc_body = { { 0 } }; long f_id = -1; /* id of the current fragment */ - long f_size = skb->hdr_len; /* size of the current fragment */ - long f_used = sh_len; /* bytes used from the current fragment */ - void *f_data = skb->data; + long f_size = skb_headlen(skb) - sh_len; /* current fragment size */ + long f_used = 0; /* bytes used from the current fragment */ + void *f_data = skb->data + sh_len; long n; /* size of the current piece of payload */ unsigned long tx_packets = 0, tx_bytes = 0; unsigned int csum_start; @@ -1516,15 +1516,18 @@ static void tso_egress(struct net_device *dev, gxio_mpipe_equeue_t *equeue, /* Egress the payload. */ while (p_used < p_len) { + void *va; /* Advance as needed. */ while (f_used >= f_size) { f_id++; - f_size = sh->frags[f_id].size; - f_used = 0; + f_size = skb_frag_size(&sh->frags[f_id]); f_data = tile_net_frag_buf(&sh->frags[f_id]); + f_used = 0; } + va = f_data + f_used; + /* Use bytes from the current fragment. */ n = p_len - p_used; if (n > f_size - f_used) @@ -1533,7 +1536,7 @@ static void tso_egress(struct net_device *dev, gxio_mpipe_equeue_t *equeue, p_used += n; /* Egress a piece of the payload. */ - edesc_body.va = va_to_tile_io_addr(f_data) + f_used; + edesc_body.va = va_to_tile_io_addr(va); edesc_body.xfer_size = n; edesc_body.bound = !(p_used < p_len); gxio_mpipe_equeue_put_at(equeue, edesc_body, slot); -- cgit v0.10.2 From 9a65d162e449145706aa7309a1be00e3c3d5c80e Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 23 Oct 2012 14:12:37 +0800 Subject: usb: musb: ux500: fix 'musbid' undeclared error in ux500_remove() commit 65b3d52d02a558fbfe08e43688e15390c5ab3067 (usb: musb: add musb_ida for multi instance support) used musbid in ux500_remove() but nerver declared it. I found this in x86_64 platform, but not sure whether this is a error on the correct ARCH. $ make drivers/usb/musb/ux500.o make[1]: Nothing to be done for `all'. make[1]: Nothing to be done for `relocs'. CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h UPD include/generated/utsrelease.h CALL scripts/checksyscalls.sh CC drivers/usb/musb/ux500.o drivers/usb/musb/ux500.c: In function 'ux500_probe': drivers/usb/musb/ux500.c:78:2: error: 'musbid' undeclared (first use in this function) drivers/usb/musb/ux500.c:78:2: note: each undeclared identifier is reported only once for each function it appears in make[1]: *** [drivers/usb/musb/ux500.o] Error 1 make: *** [drivers/usb/musb/ux500.o] Error 2 Signed-off-by: Wei Yongjun Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c index d62a91f..0e62f50 100644 --- a/drivers/usb/musb/ux500.c +++ b/drivers/usb/musb/ux500.c @@ -65,7 +65,7 @@ static int __devinit ux500_probe(struct platform_device *pdev) struct platform_device *musb; struct ux500_glue *glue; struct clk *clk; - + int musbid; int ret = -ENOMEM; glue = kzalloc(sizeof(*glue), GFP_KERNEL); -- cgit v0.10.2 From 98a1eebda3cb2a84ecf1f219bb3a95769033d1bf Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Wed, 10 Oct 2012 10:55:28 +0300 Subject: UBIFS: introduce categorized lprops counter This commit is a preparation for a subsequent bugfix. We introduce a counter for categorized lprops. Signed-off-by: Artem Bityutskiy Cc: stable@vger.kernel.org diff --git a/fs/ubifs/lprops.c b/fs/ubifs/lprops.c index e5a2a35..46190a7 100644 --- a/fs/ubifs/lprops.c +++ b/fs/ubifs/lprops.c @@ -300,8 +300,11 @@ void ubifs_add_to_cat(struct ubifs_info *c, struct ubifs_lprops *lprops, default: ubifs_assert(0); } + lprops->flags &= ~LPROPS_CAT_MASK; lprops->flags |= cat; + c->in_a_category_cnt += 1; + ubifs_assert(c->in_a_category_cnt <= c->main_lebs); } /** @@ -334,6 +337,9 @@ static void ubifs_remove_from_cat(struct ubifs_info *c, default: ubifs_assert(0); } + + c->in_a_category_cnt -= 1; + ubifs_assert(c->in_a_category_cnt >= 0); } /** diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index 5486346..d133c27 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -1183,6 +1183,8 @@ struct ubifs_debug_info; * @freeable_list: list of freeable non-index LEBs (free + dirty == @leb_size) * @frdi_idx_list: list of freeable index LEBs (free + dirty == @leb_size) * @freeable_cnt: number of freeable LEBs in @freeable_list + * @in_a_category_cnt: count of lprops which are in a certain category, which + * basically meants that they were loaded from the flash * * @ltab_lnum: LEB number of LPT's own lprops table * @ltab_offs: offset of LPT's own lprops table @@ -1412,6 +1414,7 @@ struct ubifs_info { struct list_head freeable_list; struct list_head frdi_idx_list; int freeable_cnt; + int in_a_category_cnt; int ltab_lnum; int ltab_offs; -- cgit v0.10.2 From a28ad42a4a0c6f302f488f26488b8b37c9b30024 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Tue, 9 Oct 2012 16:20:15 +0300 Subject: UBIFS: fix mounting problems after power cuts This is a bugfix for a problem with the following symptoms: 1. A power cut happens 2. After reboot, we try to mount UBIFS 3. Mount fails with "No space left on device" error message UBIFS complains like this: UBIFS error (pid 28225): grab_empty_leb: could not find an empty LEB The root cause of this problem is that when we mount, not all LEBs are categorized. Only those which were read are. However, the 'ubifs_find_free_leb_for_idx()' function assumes that all LEBs were categorized and 'c->freeable_cnt' is valid, which is a false assumption. This patch fixes the problem by teaching 'ubifs_find_free_leb_for_idx()' to always fall back to LPT scanning if no freeable LEBs were found. This problem was reported by few people in the past, but Brent Taylor was able to reproduce it and send me a flash image which cannot be mounted, which made it easy to hunt the bug. Kudos to Brent. Reported-by: Brent Taylor Signed-off-by: Artem Bityutskiy Cc: stable@vger.kernel.org diff --git a/fs/ubifs/find.c b/fs/ubifs/find.c index 28ec13a..2dcf3d4 100644 --- a/fs/ubifs/find.c +++ b/fs/ubifs/find.c @@ -681,8 +681,16 @@ int ubifs_find_free_leb_for_idx(struct ubifs_info *c) if (!lprops) { lprops = ubifs_fast_find_freeable(c); if (!lprops) { - ubifs_assert(c->freeable_cnt == 0); - if (c->lst.empty_lebs - c->lst.taken_empty_lebs > 0) { + /* + * The first condition means the following: go scan the + * LPT if there are uncategorized lprops, which means + * there may be freeable LEBs there (UBIFS does not + * store the information about freeable LEBs in the + * master node). + */ + if (c->in_a_category_cnt != c->main_lebs || + c->lst.empty_lebs - c->lst.taken_empty_lebs > 0) { + ubifs_assert(c->freeable_cnt == 0); lprops = scan_for_leb_for_idx(c); if (IS_ERR(lprops)) { err = PTR_ERR(lprops); -- cgit v0.10.2 From 31370f75de4b641f47204899549d2a533cd42738 Mon Sep 17 00:00:00 2001 From: Sebastian Ott Date: Wed, 24 Oct 2012 11:22:52 +0200 Subject: s390/cio: suppress 2nd path verification during resume Do not trigger a path verification in the subchannel event function during resume from hibernate. This will be started by the pm_restore callback later. Signed-off-by: Sebastian Ott Reviewed-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index fc916f5..fd3143c 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -1424,7 +1424,7 @@ static enum io_sch_action sch_get_action(struct subchannel *sch) } if (device_is_disconnected(cdev)) return IO_SCH_REPROBE; - if (cdev->online) + if (cdev->online && !cdev->private->flags.resuming) return IO_SCH_VERIFY; if (cdev->private->state == DEV_STATE_NOT_OPER) return IO_SCH_UNREG_ATTACH; @@ -1469,12 +1469,6 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process) rc = 0; goto out_unlock; case IO_SCH_VERIFY: - if (cdev->private->flags.resuming == 1) { - if (cio_enable_subchannel(sch, (u32)(addr_t)sch)) { - ccw_device_set_notoper(cdev); - break; - } - } /* Trigger path verification. */ io_subchannel_verify(sch); rc = 0; -- cgit v0.10.2 From 156152f84e57bff4d9b5d70be6f3f16116bf6fb1 Mon Sep 17 00:00:00 2001 From: Gerald Schaefer Date: Thu, 25 Oct 2012 17:24:12 +0200 Subject: s390/mm: use pmd_large() instead of pmd_huge() Without CONFIG_HUGETLB_PAGE, pmd_huge() will always return 0. So pmd_large() should be used instead in places where both transparent huge pages and hugetlbfs pages can occur. Signed-off-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c index 2d37bb8..9017a63 100644 --- a/arch/s390/lib/uaccess_pt.c +++ b/arch/s390/lib/uaccess_pt.c @@ -39,7 +39,7 @@ static __always_inline unsigned long follow_table(struct mm_struct *mm, pmd = pmd_offset(pud, addr); if (pmd_none(*pmd)) return -0x10UL; - if (pmd_huge(*pmd)) { + if (pmd_large(*pmd)) { if (write && (pmd_val(*pmd) & _SEGMENT_ENTRY_RO)) return -0x04UL; return (pmd_val(*pmd) & HPAGE_MASK) + (addr & ~HPAGE_MASK); diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c index 60acb93..8b82853 100644 --- a/arch/s390/mm/gup.c +++ b/arch/s390/mm/gup.c @@ -126,7 +126,7 @@ static inline int gup_pmd_range(pud_t *pudp, pud_t pud, unsigned long addr, */ if (pmd_none(pmd) || pmd_trans_splitting(pmd)) return 0; - if (unlikely(pmd_huge(pmd))) { + if (unlikely(pmd_large(pmd))) { if (!gup_huge_pmd(pmdp, pmd, addr, next, write, pages, nr)) return 0; -- cgit v0.10.2 From d8e7a33df0976459674dece4b630b5d59796ece7 Mon Sep 17 00:00:00 2001 From: Gerald Schaefer Date: Thu, 25 Oct 2012 17:42:50 +0200 Subject: s390/thp: respect page protection in pmd_none() and pmd_present() Similar to pte_none() and pte_present(), the pmd functions should also respect page protection of huge pages, especially PROT_NONE. This patch also simplifies massage_pgprot_pmd() by adding new definitions for huge page protection. Signed-off-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index dd647c9..2d3b7cb 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -506,12 +506,15 @@ static inline int pud_bad(pud_t pud) static inline int pmd_present(pmd_t pmd) { - return (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN) != 0UL; + unsigned long mask = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO; + return (pmd_val(pmd) & mask) == _HPAGE_TYPE_NONE || + !(pmd_val(pmd) & _SEGMENT_ENTRY_INV); } static inline int pmd_none(pmd_t pmd) { - return (pmd_val(pmd) & _SEGMENT_ENTRY_INV) != 0UL; + return (pmd_val(pmd) & _SEGMENT_ENTRY_INV) && + !(pmd_val(pmd) & _SEGMENT_ENTRY_RO); } static inline int pmd_large(pmd_t pmd) @@ -1223,6 +1226,11 @@ static inline void __pmd_idte(unsigned long address, pmd_t *pmdp) } #ifdef CONFIG_TRANSPARENT_HUGEPAGE + +#define SEGMENT_NONE __pgprot(_HPAGE_TYPE_NONE) +#define SEGMENT_RO __pgprot(_HPAGE_TYPE_RO) +#define SEGMENT_RW __pgprot(_HPAGE_TYPE_RW) + #define __HAVE_ARCH_PGTABLE_DEPOSIT extern void pgtable_trans_huge_deposit(struct mm_struct *mm, pgtable_t pgtable); @@ -1242,16 +1250,15 @@ static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr, static inline unsigned long massage_pgprot_pmd(pgprot_t pgprot) { - unsigned long pgprot_pmd = 0; - - if (pgprot_val(pgprot) & _PAGE_INVALID) { - if (pgprot_val(pgprot) & _PAGE_SWT) - pgprot_pmd |= _HPAGE_TYPE_NONE; - pgprot_pmd |= _SEGMENT_ENTRY_INV; - } - if (pgprot_val(pgprot) & _PAGE_RO) - pgprot_pmd |= _SEGMENT_ENTRY_RO; - return pgprot_pmd; + /* + * pgprot is PAGE_NONE, PAGE_RO, or PAGE_RW (see __Pxxx / __Sxxx) + * Convert to segment table entry format. + */ + if (pgprot_val(pgprot) == pgprot_val(PAGE_NONE)) + return pgprot_val(SEGMENT_NONE); + if (pgprot_val(pgprot) == pgprot_val(PAGE_RO)) + return pgprot_val(SEGMENT_RO); + return pgprot_val(SEGMENT_RW); } static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot) @@ -1269,7 +1276,9 @@ static inline pmd_t pmd_mkhuge(pmd_t pmd) static inline pmd_t pmd_mkwrite(pmd_t pmd) { - pmd_val(pmd) &= ~_SEGMENT_ENTRY_RO; + /* Do not clobber _HPAGE_TYPE_NONE pages! */ + if (!(pmd_val(pmd) & _SEGMENT_ENTRY_INV)) + pmd_val(pmd) &= ~_SEGMENT_ENTRY_RO; return pmd; } -- cgit v0.10.2 From 5afc13af36d2fdaa48bc54386c6ad43590d88be5 Mon Sep 17 00:00:00 2001 From: Gustavo Maciel Dias Vieira Date: Fri, 26 Oct 2012 12:51:53 -0200 Subject: ALSA: hda - Fix mute-LED setup for HP dv5 laptop MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The BIOS on HP dv5 doesn't have the DMI string to guide the setup of mute led GPIO and polarity. Associate this laptop with the hp-inv-led model. Signed-off-by: Gustavo Maciel Dias Vieira Tested-by: Vinícius Angiolucci Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 770013f..9ba8af0 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -1763,6 +1763,8 @@ static const struct snd_pci_quirk stac92hd83xxx_cfg_tbl[] = { "HP", STAC_HP_ZEPHYR), SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x3660, "HP Mini", STAC_92HD83XXX_HP_LED), + SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x144E, + "HP Pavilion dv5", STAC_92HD83XXX_HP_INV_LED), {} /* terminator */ }; -- cgit v0.10.2 From e86b618547bb0c7db96aa70491112f032b3bec1c Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Thu, 25 Oct 2012 10:57:38 +0300 Subject: drm/i915: be less verbose about inability to provide vendor backlight commit 28dcc2d60cb570d9f549c329b2f51400553412a1 Author: Jani Nikula Date: Mon Sep 3 16:25:12 2012 +0300 drm/i915: do not expose a dysfunctional backlight interface to userspace prevents backlight interface creation if the BIOS has not set the backlight PWM CTL registers that contain the max PWM value. It's apparently normal on those machines, so demote the message about it to debug level. Reported-by: Orion Poplawski Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=56330 Signed-off-by: Jani Nikula Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index e019b23..e2aacd3 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -435,7 +435,7 @@ int intel_panel_setup_backlight(struct drm_device *dev) props.type = BACKLIGHT_RAW; props.max_brightness = _intel_panel_get_max_backlight(dev); if (props.max_brightness == 0) { - DRM_ERROR("Failed to get maximum backlight value\n"); + DRM_DEBUG_DRIVER("Failed to get maximum backlight value\n"); return -ENODEV; } dev_priv->backlight = -- cgit v0.10.2 From 1623392af9da983f3ad088a75076c9da05e5600d Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 26 Oct 2012 12:06:41 +0100 Subject: drm/i915: Only kick out vesafb if we takeover the fbcon with KMS Otherwise we may remove the only console for a nomodeset system. We became more aggressive in our kicking with commit e188719a2891f01b3100dca4ae3a055fb5a7ab52 Author: Daniel Vetter Date: Tue Jun 12 11:28:17 2012 +0200 drm/i915: kick any firmware framebuffers before claiming the gtt Reported-and-tested-by: monnier@iro.umontreal.ca Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54615 Signed-off-by: Chris Wilson Cc: stable@vger.kernel.org # v3.6 Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index c9bfd83..61ae104 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1505,7 +1505,8 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) goto put_gmch; } - i915_kick_out_firmware_fb(dev_priv); + if (drm_core_check_feature(dev, DRIVER_MODESET)) + i915_kick_out_firmware_fb(dev_priv); pci_set_master(dev->pdev); -- cgit v0.10.2 From 561ec64ae67ef25cac8d72bb9c4bfc955edfd415 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 26 Oct 2012 10:05:07 -0700 Subject: VFS: don't do protected {sym,hard}links by default In commit 800179c9b8a1 ("This adds symlink and hardlink restrictions to the Linux VFS"), the new link protections were enabled by default, in the hope that no actual application would care, despite it being technically against legacy UNIX (and documented POSIX) behavior. However, it does turn out to break some applications. It's rare, and it's unfortunate, but it's unacceptable to break existing systems, so we'll have to default to legacy behavior. In particular, it has broken the way AFD distributes files, see http://www.dwd.de/AFD/ along with some legacy scripts. Distributions can end up setting this at initrd time or in system scripts: if you have security problems due to link attacks during your early boot sequence, you have bigger problems than some kernel sysctl setting. Do: echo 1 > /proc/sys/fs/protected_symlinks echo 1 > /proc/sys/fs/protected_hardlinks to re-enable the link protections. Alternatively, we may at some point introduce a kernel config option that sets these kinds of "more secure but not traditional" behavioural options automatically. Reported-by: Nick Bowler Reported-by: Holger Kiehl Cc: Kees Cook Cc: Ingo Molnar Cc: Andrew Morton Cc: Al Viro Cc: Alan Cox Cc: Theodore Ts'o Cc: stable@kernel.org # v3.6 Signed-off-by: Linus Torvalds diff --git a/fs/namei.c b/fs/namei.c index d1895f3..937f9d5 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -705,8 +705,8 @@ static inline void put_link(struct nameidata *nd, struct path *link, void *cooki path_put(link); } -int sysctl_protected_symlinks __read_mostly = 1; -int sysctl_protected_hardlinks __read_mostly = 1; +int sysctl_protected_symlinks __read_mostly = 0; +int sysctl_protected_hardlinks __read_mostly = 0; /** * may_follow_link - Check symlink following for unsafe situations -- cgit v0.10.2 From 29c08cdabd323adf7fcc0d26077383d4daf7b09a Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Tue, 9 Oct 2012 12:12:14 -0700 Subject: qla2xxx: Add missing ->vport_slock while calling qlt_update_vp_map All other callers of qlt_update_vp_map() already hold ->vport_slock while updating the vp target map, so go ahead and add the missing ->vport_slock within qla24xx_disable_vp() code. Cc: Saurav Kashyap Cc: Chad Dupuis Cc: Arun Easi Cc: Andrew Vasquez Cc: Jiri Kosina Cc: Roland Dreier Acked-by: Saurav Kashyap Signed-off-by: Nicholas Bellinger diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index bd4708a..20fd974 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -149,6 +149,7 @@ qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha) int qla24xx_disable_vp(scsi_qla_host_t *vha) { + unsigned long flags; int ret; ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); @@ -156,7 +157,9 @@ qla24xx_disable_vp(scsi_qla_host_t *vha) atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); /* Remove port id from vp target map */ + spin_lock_irqsave(&vha->hw->vport_slock, flags); qlt_update_vp_map(vha, RESET_AL_PA); + spin_unlock_irqrestore(&vha->hw->vport_slock, flags); qla2x00_mark_vp_devices_dead(vha); atomic_set(&vha->vp_state, VP_FAILED); -- cgit v0.10.2 From c046aa0f0f47719a38854fc6383216392b130704 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Thu, 11 Oct 2012 13:41:31 -0700 Subject: tcm_qla2xxx: Format VPD page 83h SCSI name string according to SPC My draft of SPC-4 says the following about the SCSI name string in inquiry VPD page 83h: The SCSI NAME STRING field starts with either: a) the four UTF-8 characters 'eui.' concatenated with 16, 24, or 32 hexadecimal digits (i.e., the UTF-8 characters 0 through 9 and A through F) for an EUI-64 based identifier (see 7.8.6.5). The first hexadecimal digit shall be the most significant four bits of the first byte (i.e., most significant byte) of the EUI-64 based identifier; b) the four UTF-8 characters 'naa.' concatenated with 16 or 32 hexadecimal digits for an NAA identifier (see 7.8.6.6). The first hexadecimal digit shall be the most significant four bits of the first byte (i.e., most significant byte) of the NAA identifier; or c) the four UTF-8 characters 'iqn.' concatenated with an iSCSI Name for an iSCSI-name based identifier (see iSCSI). However, the .tpg_get_wwn method for tcm_qla2xxx formats the WWN so the SCSI name string looks like "52:4a:93:7d:24:5f:b2:12,t,0x0001". This patch corrects the code so that VPD 83h gives a SPC-compliant SCSI name string like "naa.524a937d245fb212,t,0x0001" while leavig other uses alone (so configfs will still work with ':' separated WWNs). Signed-off-by: Roland Dreier Cc: Chad Dupuis Cc: Arun Easi Cc: Saurav Kashyap Signed-off-by: Nicholas Bellinger diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index 2358c16..d8211cc 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -237,7 +237,7 @@ static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg) struct tcm_qla2xxx_tpg, se_tpg); struct tcm_qla2xxx_lport *lport = tpg->lport; - return &lport->lport_name[0]; + return lport->lport_naa_name; } static char *tcm_qla2xxx_npiv_get_fabric_wwn(struct se_portal_group *se_tpg) @@ -1534,6 +1534,7 @@ static struct se_wwn *tcm_qla2xxx_make_lport( lport->lport_wwpn = wwpn; tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN, wwpn); + sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn); ret = tcm_qla2xxx_init_lport(lport); if (ret != 0) @@ -1601,6 +1602,7 @@ static struct se_wwn *tcm_qla2xxx_npiv_make_lport( lport->lport_npiv_wwnn = npiv_wwnn; tcm_qla2xxx_npiv_format_wwn(&lport->lport_npiv_name[0], TCM_QLA2XXX_NAMELEN, npiv_wwpn, npiv_wwnn); + sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn); /* FIXME: tcm_qla2xxx_npiv_make_lport */ ret = -ENOSYS; diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.h b/drivers/scsi/qla2xxx/tcm_qla2xxx.h index 8254981..9ba075f 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.h +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.h @@ -61,6 +61,8 @@ struct tcm_qla2xxx_lport { u64 lport_npiv_wwnn; /* ASCII formatted WWPN for FC Target Lport */ char lport_name[TCM_QLA2XXX_NAMELEN]; + /* ASCII formatted naa WWPN for VPD page 83 etc */ + char lport_naa_name[TCM_QLA2XXX_NAMELEN]; /* ASCII formatted WWPN+WWNN for NPIV FC Target Lport */ char lport_npiv_name[TCM_QLA2XXX_NPIV_NAMELEN]; /* map for fc_port pointers in 24-bit FC Port ID space */ -- cgit v0.10.2 From c8292d1da53fa60c7516ab03a9d83f7ea266d335 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Thu, 11 Oct 2012 13:41:32 -0700 Subject: qla2xxx: Update target lookup session tables when a target session changes It is possible for the target code to change the loop_id or s_id of a target session in reaction to an FC fabric change. However, the session structures are stored in tables that are indexed by these two keys, and if we just change the session structure but leave the pointers to it in the old places in the table, havoc can ensue. For example, a new session might come along that should go in the old slot in the table and overwrite the old session pointer. To handle this, add a new tgt_ops->update_sess() method that also updates the "by loop_id" and "by s_id" lookup tables when a session changes, so that the keys where a session pointer is stored in these tables always matches the keys in the session structure itself. (nab: Drop unnecessary double inversion with FCF_CONF_COMP_SUPPORTED usage) Signed-off-by: Roland Dreier Cc: Chad Dupuis Cc: Arun Easi Cc: Saurav Kashyap Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 0e09d8f..62aa558 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -557,6 +557,7 @@ static bool qlt_check_fcport_exist(struct scsi_qla_host *vha, int pmap_len; fc_port_t *fcport; int global_resets; + unsigned long flags; retry: global_resets = atomic_read(&ha->tgt.qla_tgt->tgt_global_resets_count); @@ -625,10 +626,10 @@ retry: sess->s_id.b.area, sess->loop_id, fcport->d_id.b.domain, fcport->d_id.b.al_pa, fcport->d_id.b.area, fcport->loop_id); - sess->s_id = fcport->d_id; - sess->loop_id = fcport->loop_id; - sess->conf_compl_supported = !!(fcport->flags & - FCF_CONF_COMP_SUPPORTED); + spin_lock_irqsave(&ha->hardware_lock, flags); + ha->tgt.tgt_ops->update_sess(sess, fcport->d_id, fcport->loop_id, + (fcport->flags & FCF_CONF_COMP_SUPPORTED)); + spin_unlock_irqrestore(&ha->hardware_lock, flags); res = true; @@ -740,10 +741,9 @@ static struct qla_tgt_sess *qlt_create_sess( qlt_undelete_sess(sess); kref_get(&sess->se_sess->sess_kref); - sess->s_id = fcport->d_id; - sess->loop_id = fcport->loop_id; - sess->conf_compl_supported = !!(fcport->flags & - FCF_CONF_COMP_SUPPORTED); + ha->tgt.tgt_ops->update_sess(sess, fcport->d_id, fcport->loop_id, + (fcport->flags & FCF_CONF_COMP_SUPPORTED)); + if (sess->local && !local) sess->local = 0; spin_unlock_irqrestore(&ha->hardware_lock, flags); @@ -796,8 +796,7 @@ static struct qla_tgt_sess *qlt_create_sess( */ kref_get(&sess->se_sess->sess_kref); - sess->conf_compl_supported = !!(fcport->flags & - FCF_CONF_COMP_SUPPORTED); + sess->conf_compl_supported = (fcport->flags & FCF_CONF_COMP_SUPPORTED); BUILD_BUG_ON(sizeof(sess->port_name) != sizeof(fcport->port_name)); memcpy(sess->port_name, fcport->port_name, sizeof(sess->port_name)); @@ -869,10 +868,8 @@ void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport) ql_dbg(ql_dbg_tgt_mgt, vha, 0xf007, "Reappeared sess %p\n", sess); } - sess->s_id = fcport->d_id; - sess->loop_id = fcport->loop_id; - sess->conf_compl_supported = !!(fcport->flags & - FCF_CONF_COMP_SUPPORTED); + ha->tgt.tgt_ops->update_sess(sess, fcport->d_id, fcport->loop_id, + (fcport->flags & FCF_CONF_COMP_SUPPORTED)); } if (sess && sess->local) { diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h index 170af15..bad7495 100644 --- a/drivers/scsi/qla2xxx/qla_target.h +++ b/drivers/scsi/qla2xxx/qla_target.h @@ -648,6 +648,7 @@ struct qla_tgt_func_tmpl { int (*check_initiator_node_acl)(struct scsi_qla_host *, unsigned char *, void *, uint8_t *, uint16_t); + void (*update_sess)(struct qla_tgt_sess *, port_id_t, uint16_t, bool); struct qla_tgt_sess *(*find_sess_by_loop_id)(struct scsi_qla_host *, const uint16_t); struct qla_tgt_sess *(*find_sess_by_s_id)(struct scsi_qla_host *, diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index d8211cc..3d74f2f 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -1457,6 +1457,78 @@ static int tcm_qla2xxx_check_initiator_node_acl( return 0; } +static void tcm_qla2xxx_update_sess(struct qla_tgt_sess *sess, port_id_t s_id, + uint16_t loop_id, bool conf_compl_supported) +{ + struct qla_tgt *tgt = sess->tgt; + struct qla_hw_data *ha = tgt->ha; + struct tcm_qla2xxx_lport *lport = ha->tgt.target_lport_ptr; + struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; + struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, + struct tcm_qla2xxx_nacl, se_node_acl); + u32 key; + + + if (sess->loop_id != loop_id || sess->s_id.b24 != s_id.b24) + pr_info("Updating session %p from port %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n", + sess, + sess->port_name[0], sess->port_name[1], + sess->port_name[2], sess->port_name[3], + sess->port_name[4], sess->port_name[5], + sess->port_name[6], sess->port_name[7], + sess->loop_id, loop_id, + sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa, + s_id.b.domain, s_id.b.area, s_id.b.al_pa); + + if (sess->loop_id != loop_id) { + /* + * Because we can shuffle loop IDs around and we + * update different sessions non-atomically, we might + * have overwritten this session's old loop ID + * already, and we might end up overwriting some other + * session that will be updated later. So we have to + * be extra careful and we can't warn about those things... + */ + if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl) + lport->lport_loopid_map[sess->loop_id].se_nacl = NULL; + + lport->lport_loopid_map[loop_id].se_nacl = se_nacl; + + sess->loop_id = loop_id; + } + + if (sess->s_id.b24 != s_id.b24) { + key = (((u32) sess->s_id.b.domain << 16) | + ((u32) sess->s_id.b.area << 8) | + ((u32) sess->s_id.b.al_pa)); + + if (btree_lookup32(&lport->lport_fcport_map, key)) + WARN(btree_remove32(&lport->lport_fcport_map, key) != se_nacl, + "Found wrong se_nacl when updating s_id %x:%x:%x\n", + sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); + else + WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n", + sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); + + key = (((u32) s_id.b.domain << 16) | + ((u32) s_id.b.area << 8) | + ((u32) s_id.b.al_pa)); + + if (btree_lookup32(&lport->lport_fcport_map, key)) { + WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n", + s_id.b.domain, s_id.b.area, s_id.b.al_pa); + btree_update32(&lport->lport_fcport_map, key, se_nacl); + } else { + btree_insert32(&lport->lport_fcport_map, key, se_nacl, GFP_ATOMIC); + } + + sess->s_id = s_id; + nacl->nport_id = key; + } + + sess->conf_compl_supported = conf_compl_supported; +} + /* * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path. */ @@ -1467,6 +1539,7 @@ static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { .free_cmd = tcm_qla2xxx_free_cmd, .free_mcmd = tcm_qla2xxx_free_mcmd, .free_session = tcm_qla2xxx_free_session, + .update_sess = tcm_qla2xxx_update_sess, .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl, .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id, .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id, -- cgit v0.10.2 From badecb001a310408d3473b1fc2ed5aefd0bc92a9 Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Fri, 26 Oct 2012 18:54:25 +0200 Subject: mac80211: fix SSID copy on IBSS JOIN The 'ssid' field of the cfg80211_ibss_params is a u8 pointer and its length is likely to be less than IEEE80211_MAX_SSID_LEN most of the time. This patch fixes the ssid copy in ieee80211_ibss_join() by using the SSID length to prevent it from reading beyond the string. Cc: stable@vger.kernel.org Signed-off-by: Antonio Quartulli [rewrapped commit message, small rewording] Signed-off-by: Johannes Berg diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 5f3620f..bf87c70 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -1108,7 +1108,7 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, sdata->u.ibss.state = IEEE80211_IBSS_MLME_SEARCH; sdata->u.ibss.ibss_join_req = jiffies; - memcpy(sdata->u.ibss.ssid, params->ssid, IEEE80211_MAX_SSID_LEN); + memcpy(sdata->u.ibss.ssid, params->ssid, params->ssid_len); sdata->u.ibss.ssid_len = params->ssid_len; mutex_unlock(&sdata->u.ibss.mtx); -- cgit v0.10.2 From 7dd111e8ee10cc6816669eabcad3334447673236 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 25 Oct 2012 21:51:59 +0200 Subject: wireless: drop invalid mesh address extension frames The mesh header can have address extension by a 4th or a 5th and 6th address, but never both. Drop such frames in 802.11 -> 802.3 conversion along with any frames that have the wrong extension. Cc: stable@vger.kernel.org Reviewed-by: Javier Cardona Signed-off-by: Johannes Berg diff --git a/net/wireless/util.c b/net/wireless/util.c index ef35f4e..45a09de 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -312,18 +312,15 @@ EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb); static int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr) { int ae = meshhdr->flags & MESH_FLAGS_AE; - /* 7.1.3.5a.2 */ + /* 802.11-2012, 8.2.4.7.3 */ switch (ae) { + default: case 0: return 6; case MESH_FLAGS_AE_A4: return 12; case MESH_FLAGS_AE_A5_A6: return 18; - case (MESH_FLAGS_AE_A4 | MESH_FLAGS_AE_A5_A6): - return 24; - default: - return 6; } } @@ -373,6 +370,8 @@ int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, /* make sure meshdr->flags is on the linear part */ if (!pskb_may_pull(skb, hdrlen + 1)) return -1; + if (meshdr->flags & MESH_FLAGS_AE_A4) + return -1; if (meshdr->flags & MESH_FLAGS_AE_A5_A6) { skb_copy_bits(skb, hdrlen + offsetof(struct ieee80211s_hdr, eaddr1), @@ -397,6 +396,8 @@ int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, /* make sure meshdr->flags is on the linear part */ if (!pskb_may_pull(skb, hdrlen + 1)) return -1; + if (meshdr->flags & MESH_FLAGS_AE_A5_A6) + return -1; if (meshdr->flags & MESH_FLAGS_AE_A4) skb_copy_bits(skb, hdrlen + offsetof(struct ieee80211s_hdr, eaddr1), -- cgit v0.10.2 From 4a4f1a5808c8bb0b72a4f6e5904c53fb8c9cd966 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 26 Oct 2012 00:33:36 +0200 Subject: mac80211: check management frame header length Due to pskb_may_pull() checking the skb length, all non-management frames are checked on input whether their 802.11 header is fully present. Also add that check for management frames and remove a check that is now duplicate. This prevents accessing skb data beyond the frame end. Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index c6865f2..99cdee1 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1470,7 +1470,6 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) frag = sc & IEEE80211_SCTL_FRAG; if (likely((!ieee80211_has_morefrags(fc) && frag == 0) || - (rx->skb)->len < 24 || is_multicast_ether_addr(hdr->addr1))) { /* not fragmented */ goto out; @@ -2915,10 +2914,15 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, if (ieee80211_is_data(fc) || ieee80211_is_mgmt(fc)) local->dot11ReceivedFragmentCount++; - if (ieee80211_is_mgmt(fc)) - err = skb_linearize(skb); - else + if (ieee80211_is_mgmt(fc)) { + /* drop frame if too short for header */ + if (skb->len < ieee80211_hdrlen(fc)) + err = -ENOBUFS; + else + err = skb_linearize(skb); + } else { err = !pskb_may_pull(skb, ieee80211_hdrlen(fc)); + } if (err) { dev_kfree_skb(skb); -- cgit v0.10.2 From 9b395bc3be1cebf0144a127c7e67d56dbdac0930 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 26 Oct 2012 00:36:40 +0200 Subject: mac80211: verify that skb data is present A number of places in the mesh code don't check that the frame data is present and in the skb header when trying to access. Add those checks and the necessary pskb_may_pull() calls. This prevents accessing data that doesn't actually exist. To do this, export ieee80211_get_mesh_hdrlen() to be able to use it in mac80211. Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index f8cd4cf..7d5b600 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -2652,6 +2652,15 @@ unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb); unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc); /** + * ieee80211_get_mesh_hdrlen - get mesh extension header length + * @meshhdr: the mesh extension header, only the flags field + * (first byte) will be accessed + * Returns the length of the extension header, which is always at + * least 6 bytes and at most 18 if address 5 and 6 are present. + */ +unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr); + +/** * DOC: Data path helpers * * In addition to generic utilities, cfg80211 also offers diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 99cdee1..265a032d 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -531,6 +531,11 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx) if (ieee80211_is_action(hdr->frame_control)) { u8 category; + + /* make sure category field is present */ + if (rx->skb->len < IEEE80211_MIN_ACTION_SIZE) + return RX_DROP_MONITOR; + mgmt = (struct ieee80211_mgmt *)hdr; category = mgmt->u.action.category; if (category != WLAN_CATEGORY_MESH_ACTION && @@ -1892,6 +1897,20 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) hdr = (struct ieee80211_hdr *) skb->data; hdrlen = ieee80211_hdrlen(hdr->frame_control); + + /* make sure fixed part of mesh header is there, also checks skb len */ + if (!pskb_may_pull(rx->skb, hdrlen + 6)) + return RX_DROP_MONITOR; + + mesh_hdr = (struct ieee80211s_hdr *) (skb->data + hdrlen); + + /* make sure full mesh header is there, also checks skb len */ + if (!pskb_may_pull(rx->skb, + hdrlen + ieee80211_get_mesh_hdrlen(mesh_hdr))) + return RX_DROP_MONITOR; + + /* reload pointers */ + hdr = (struct ieee80211_hdr *) skb->data; mesh_hdr = (struct ieee80211s_hdr *) (skb->data + hdrlen); /* frame is in RMC, don't forward */ @@ -1915,9 +1934,12 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) if (is_multicast_ether_addr(hdr->addr1)) { mpp_addr = hdr->addr3; proxied_addr = mesh_hdr->eaddr1; - } else { + } else if (mesh_hdr->flags & MESH_FLAGS_AE_A5_A6) { + /* has_a4 already checked in ieee80211_rx_mesh_check */ mpp_addr = hdr->addr4; proxied_addr = mesh_hdr->eaddr2; + } else { + return RX_DROP_MONITOR; } rcu_read_lock(); @@ -2354,6 +2376,10 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) } break; case WLAN_CATEGORY_SELF_PROTECTED: + if (len < (IEEE80211_MIN_ACTION_SIZE + + sizeof(mgmt->u.action.u.self_prot.action_code))) + break; + switch (mgmt->u.action.u.self_prot.action_code) { case WLAN_SP_MESH_PEERING_OPEN: case WLAN_SP_MESH_PEERING_CLOSE: @@ -2372,6 +2398,10 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) } break; case WLAN_CATEGORY_MESH_ACTION: + if (len < (IEEE80211_MIN_ACTION_SIZE + + sizeof(mgmt->u.action.u.mesh_action.action_code))) + break; + if (!ieee80211_vif_is_mesh(&sdata->vif)) break; if (mesh_action_is_path_sel(mgmt) && diff --git a/net/wireless/util.c b/net/wireless/util.c index 45a09de..2762e83 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -309,7 +309,7 @@ unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb) } EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb); -static int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr) +unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr) { int ae = meshhdr->flags & MESH_FLAGS_AE; /* 802.11-2012, 8.2.4.7.3 */ @@ -323,6 +323,7 @@ static int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr) return 18; } } +EXPORT_SYMBOL(ieee80211_get_mesh_hdrlen); int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, enum nl80211_iftype iftype) -- cgit v0.10.2 From 6dbda2d00d466225f9db1dc695ff852443f28832 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 26 Oct 2012 00:41:23 +0200 Subject: mac80211: make sure data is accessible in EAPOL check The code to allow EAPOL frames even when the station isn't yet marked associated needs to check that the incoming frame is long enough and due to paged RX it also can't assume skb->data contains the right data, it must use skb_copy_bits(). Fix this to avoid using data that doesn't really exist. Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 265a032d..00ade7f 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -888,14 +888,16 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx) */ if (rx->sta && rx->sdata->vif.type == NL80211_IFTYPE_STATION && ieee80211_is_data_present(hdr->frame_control)) { - u16 ethertype; - u8 *payload; - - payload = rx->skb->data + - ieee80211_hdrlen(hdr->frame_control); - ethertype = (payload[6] << 8) | payload[7]; - if (cpu_to_be16(ethertype) == - rx->sdata->control_port_protocol) + unsigned int hdrlen; + __be16 ethertype; + + hdrlen = ieee80211_hdrlen(hdr->frame_control); + + if (rx->skb->len < hdrlen + 8) + return RX_DROP_MONITOR; + + skb_copy_bits(rx->skb, hdrlen + 6, ðertype, 2); + if (ethertype == rx->sdata->control_port_protocol) return RX_CONTINUE; } -- cgit v0.10.2 From 517ffce4e1a03aea979fe3a18a3dd1761a24fafb Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 26 Oct 2012 15:18:37 -0700 Subject: sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads. The Montgomery Multiply, Montgomery Square, and Multiple-Precision Multiply instructions work by loading a combination of the floating point and multiple register windows worth of integer registers with the inputs. These values are 64-bit. But for 32-bit userland processes we only save the low 32-bits of each integer register during a register spill. This is because the register window save area is in the user stack and has a fixed layout. Therefore, the only way to use these instruction in 32-bit mode is to perform the following sequence: 1) Load the top-32bits of a choosen integer register with a sentinel, say "-1". This will be in the outer-most register window. The idea is that we're trying to see if the outer-most register window gets spilled, and thus the 64-bit values were truncated. 2) Load all the inputs for the montmul/montsqr/mpmul instruction, down to the inner-most register window. 3) Execute the opcode. 4) Traverse back up to the outer-most register window. 5) Check the sentinel, if it's still "-1" store the results. Otherwise retry the entire sequence. This retry is extremely troublesome. If you're just unlucky and an interrupt or other trap happens, it'll push that outer-most window to the stack and clear the sentinel when we restore it. We could retry forever and never make forward progress if interrupts arrive at a fast enough rate (consider perf events as one example). So we have do limited retries and fallback to software which is extremely non-deterministic. Luckily it's very straightforward to provide a mechanism to let 32-bit applications use a 64-bit stack. Stacks in 64-bit mode are biased by 2047 bytes, which means that the lowest bit is set in the actual %sp register value. So if we see bit zero set in a 32-bit application's stack we treat it like a 64-bit stack. Runtime detection of such a facility is tricky, and cumbersome at best. For example, just trying to use a biased stack and seeing if it works is hard to recover from (the signal handler will need to use an alt stack, plus something along the lines of longjmp). Therefore, we add a system call to report a bitmask of arch specific features like this in a cheap and less hairy way. With help from Andy Polyakov. Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h index cef99fb..830502fe 100644 --- a/arch/sparc/include/asm/compat.h +++ b/arch/sparc/include/asm/compat.h @@ -232,9 +232,10 @@ static inline void __user *arch_compat_alloc_user_space(long len) struct pt_regs *regs = current_thread_info()->kregs; unsigned long usp = regs->u_regs[UREG_I6]; - if (!(test_thread_flag(TIF_32BIT))) + if (test_thread_64bit_stack(usp)) usp += STACK_BIAS; - else + + if (test_thread_flag(TIF_32BIT)) usp &= 0xffffffffUL; usp -= len; diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h index 4e227663..a3fe4dc 100644 --- a/arch/sparc/include/asm/thread_info_64.h +++ b/arch/sparc/include/asm/thread_info_64.h @@ -259,6 +259,11 @@ static inline bool test_and_clear_restore_sigmask(void) #define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) +#define thread32_stack_is_64bit(__SP) (((__SP) & 0x1) != 0) +#define test_thread_64bit_stack(__SP) \ + ((test_thread_flag(TIF_32BIT) && !thread32_stack_is_64bit(__SP)) ? \ + false : true) + #endif /* !__ASSEMBLY__ */ #endif /* __KERNEL__ */ diff --git a/arch/sparc/include/asm/ttable.h b/arch/sparc/include/asm/ttable.h index 48f2807..71b5a67 100644 --- a/arch/sparc/include/asm/ttable.h +++ b/arch/sparc/include/asm/ttable.h @@ -372,7 +372,9 @@ etrap_spill_fixup_64bit: \ /* Normal 32bit spill */ #define SPILL_2_GENERIC(ASI) \ - srl %sp, 0, %sp; \ + and %sp, 1, %g3; \ + brnz,pn %g3, (. - (128 + 4)); \ + srl %sp, 0, %sp; \ stwa %l0, [%sp + %g0] ASI; \ mov 0x04, %g3; \ stwa %l1, [%sp + %g3] ASI; \ @@ -398,14 +400,16 @@ etrap_spill_fixup_64bit: \ stwa %i6, [%g1 + %g0] ASI; \ stwa %i7, [%g1 + %g3] ASI; \ saved; \ - retry; nop; nop; \ + retry; \ b,a,pt %xcc, spill_fixup_dax; \ b,a,pt %xcc, spill_fixup_mna; \ b,a,pt %xcc, spill_fixup; #define SPILL_2_GENERIC_ETRAP \ etrap_user_spill_32bit: \ - srl %sp, 0, %sp; \ + and %sp, 1, %g3; \ + brnz,pn %g3, etrap_user_spill_64bit; \ + srl %sp, 0, %sp; \ stwa %l0, [%sp + 0x00] %asi; \ stwa %l1, [%sp + 0x04] %asi; \ stwa %l2, [%sp + 0x08] %asi; \ @@ -427,7 +431,7 @@ etrap_user_spill_32bit: \ ba,pt %xcc, etrap_save; \ wrpr %g1, %cwp; \ nop; nop; nop; nop; \ - nop; nop; nop; nop; \ + nop; nop; \ ba,a,pt %xcc, etrap_spill_fixup_32bit; \ ba,a,pt %xcc, etrap_spill_fixup_32bit; \ ba,a,pt %xcc, etrap_spill_fixup_32bit; @@ -592,7 +596,9 @@ user_rtt_fill_64bit: \ /* Normal 32bit fill */ #define FILL_2_GENERIC(ASI) \ - srl %sp, 0, %sp; \ + and %sp, 1, %g3; \ + brnz,pn %g3, (. - (128 + 4)); \ + srl %sp, 0, %sp; \ lduwa [%sp + %g0] ASI, %l0; \ mov 0x04, %g2; \ mov 0x08, %g3; \ @@ -616,14 +622,16 @@ user_rtt_fill_64bit: \ lduwa [%g1 + %g3] ASI, %i6; \ lduwa [%g1 + %g5] ASI, %i7; \ restored; \ - retry; nop; nop; nop; nop; \ + retry; nop; nop; \ b,a,pt %xcc, fill_fixup_dax; \ b,a,pt %xcc, fill_fixup_mna; \ b,a,pt %xcc, fill_fixup; #define FILL_2_GENERIC_RTRAP \ user_rtt_fill_32bit: \ - srl %sp, 0, %sp; \ + and %sp, 1, %g3; \ + brnz,pn %g3, user_rtt_fill_64bit; \ + srl %sp, 0, %sp; \ lduwa [%sp + 0x00] %asi, %l0; \ lduwa [%sp + 0x04] %asi, %l1; \ lduwa [%sp + 0x08] %asi, %l2; \ @@ -643,7 +651,7 @@ user_rtt_fill_32bit: \ ba,pt %xcc, user_rtt_pre_restore; \ restored; \ nop; nop; nop; nop; nop; \ - nop; nop; nop; nop; nop; \ + nop; nop; nop; \ ba,a,pt %xcc, user_rtt_fill_fixup; \ ba,a,pt %xcc, user_rtt_fill_fixup; \ ba,a,pt %xcc, user_rtt_fill_fixup; diff --git a/arch/sparc/include/uapi/asm/unistd.h b/arch/sparc/include/uapi/asm/unistd.h index 8974ef7..bed86a8 100644 --- a/arch/sparc/include/uapi/asm/unistd.h +++ b/arch/sparc/include/uapi/asm/unistd.h @@ -405,8 +405,12 @@ #define __NR_setns 337 #define __NR_process_vm_readv 338 #define __NR_process_vm_writev 339 +#define __NR_kern_features 340 -#define NR_syscalls 340 +#define NR_syscalls 341 + +/* Bitmask values returned from kern_features system call. */ +#define KERN_FEATURE_MIXED_MODE_STACK 0x00000001 #ifdef __32bit_syscall_numbers__ /* Sparc 32-bit only has the "setresuid32", "getresuid32" variants, diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c index 885a8af..b5c38fa 100644 --- a/arch/sparc/kernel/perf_event.c +++ b/arch/sparc/kernel/perf_event.c @@ -1762,15 +1762,25 @@ static void perf_callchain_user_32(struct perf_callchain_entry *entry, ufp = regs->u_regs[UREG_I6] & 0xffffffffUL; do { - struct sparc_stackf32 *usf, sf; unsigned long pc; - usf = (struct sparc_stackf32 *) ufp; - if (__copy_from_user_inatomic(&sf, usf, sizeof(sf))) - break; + if (thread32_stack_is_64bit(ufp)) { + struct sparc_stackf *usf, sf; - pc = sf.callers_pc; - ufp = (unsigned long)sf.fp; + ufp += STACK_BIAS; + usf = (struct sparc_stackf *) ufp; + if (__copy_from_user_inatomic(&sf, usf, sizeof(sf))) + break; + pc = sf.callers_pc & 0xffffffff; + ufp = ((unsigned long) sf.fp) & 0xffffffff; + } else { + struct sparc_stackf32 *usf, sf; + usf = (struct sparc_stackf32 *) ufp; + if (__copy_from_user_inatomic(&sf, usf, sizeof(sf))) + break; + pc = sf.callers_pc; + ufp = (unsigned long)sf.fp; + } perf_callchain_store(entry, pc); } while (entry->nr < PERF_MAX_STACK_DEPTH); } diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c index d778248..c6e0c29 100644 --- a/arch/sparc/kernel/process_64.c +++ b/arch/sparc/kernel/process_64.c @@ -452,13 +452,16 @@ void flush_thread(void) /* It's a bit more tricky when 64-bit tasks are involved... */ static unsigned long clone_stackframe(unsigned long csp, unsigned long psp) { + bool stack_64bit = test_thread_64bit_stack(psp); unsigned long fp, distance, rval; - if (!(test_thread_flag(TIF_32BIT))) { + if (stack_64bit) { csp += STACK_BIAS; psp += STACK_BIAS; __get_user(fp, &(((struct reg_window __user *)psp)->ins[6])); fp += STACK_BIAS; + if (test_thread_flag(TIF_32BIT)) + fp &= 0xffffffff; } else __get_user(fp, &(((struct reg_window32 __user *)psp)->ins[6])); @@ -472,7 +475,7 @@ static unsigned long clone_stackframe(unsigned long csp, unsigned long psp) rval = (csp - distance); if (copy_in_user((void __user *) rval, (void __user *) psp, distance)) rval = 0; - else if (test_thread_flag(TIF_32BIT)) { + else if (!stack_64bit) { if (put_user(((u32)csp), &(((struct reg_window32 __user *)rval)->ins[6]))) rval = 0; @@ -507,18 +510,18 @@ void synchronize_user_stack(void) flush_user_windows(); if ((window = get_thread_wsaved()) != 0) { - int winsize = sizeof(struct reg_window); - int bias = 0; - - if (test_thread_flag(TIF_32BIT)) - winsize = sizeof(struct reg_window32); - else - bias = STACK_BIAS; - window -= 1; do { - unsigned long sp = (t->rwbuf_stkptrs[window] + bias); struct reg_window *rwin = &t->reg_window[window]; + int winsize = sizeof(struct reg_window); + unsigned long sp; + + sp = t->rwbuf_stkptrs[window]; + + if (test_thread_64bit_stack(sp)) + sp += STACK_BIAS; + else + winsize = sizeof(struct reg_window32); if (!copy_to_user((char __user *)sp, rwin, winsize)) { shift_window_buffer(window, get_thread_wsaved() - 1, t); @@ -544,13 +547,6 @@ void fault_in_user_windows(void) { struct thread_info *t = current_thread_info(); unsigned long window; - int winsize = sizeof(struct reg_window); - int bias = 0; - - if (test_thread_flag(TIF_32BIT)) - winsize = sizeof(struct reg_window32); - else - bias = STACK_BIAS; flush_user_windows(); window = get_thread_wsaved(); @@ -558,8 +554,16 @@ void fault_in_user_windows(void) if (likely(window != 0)) { window -= 1; do { - unsigned long sp = (t->rwbuf_stkptrs[window] + bias); struct reg_window *rwin = &t->reg_window[window]; + int winsize = sizeof(struct reg_window); + unsigned long sp; + + sp = t->rwbuf_stkptrs[window]; + + if (test_thread_64bit_stack(sp)) + sp += STACK_BIAS; + else + winsize = sizeof(struct reg_window32); if (unlikely(sp & 0x7UL)) stack_unaligned(sp); diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c index 484daba..7ff45e4 100644 --- a/arch/sparc/kernel/ptrace_64.c +++ b/arch/sparc/kernel/ptrace_64.c @@ -151,7 +151,7 @@ static int regwindow64_get(struct task_struct *target, { unsigned long rw_addr = regs->u_regs[UREG_I6]; - if (test_tsk_thread_flag(current, TIF_32BIT)) { + if (!test_thread_64bit_stack(rw_addr)) { struct reg_window32 win32; int i; @@ -176,7 +176,7 @@ static int regwindow64_set(struct task_struct *target, { unsigned long rw_addr = regs->u_regs[UREG_I6]; - if (test_tsk_thread_flag(current, TIF_32BIT)) { + if (!test_thread_64bit_stack(rw_addr)) { struct reg_window32 win32; int i; diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index 11c6c96..878ef3d 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -751,3 +751,8 @@ int kernel_execve(const char *filename, : "cc"); return __res; } + +asmlinkage long sys_kern_features(void) +{ + return KERN_FEATURE_MIXED_MODE_STACK; +} diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index 3a58e0d..45ce6be 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -86,6 +86,7 @@ sys_call_table32: .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open, compat_sys_recvmmsg, sys_fanotify_init /*330*/ .word sys32_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, compat_sys_open_by_handle_at, compat_sys_clock_adjtime .word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev +/*340*/ .word sys_kern_features #endif /* CONFIG_COMPAT */ @@ -163,3 +164,4 @@ sys_call_table: .word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init /*330*/ .word sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime .word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev +/*340*/ .word sys_kern_features diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c index f81d038..8201c25e 100644 --- a/arch/sparc/kernel/unaligned_64.c +++ b/arch/sparc/kernel/unaligned_64.c @@ -113,21 +113,24 @@ static inline long sign_extend_imm13(long imm) static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs) { - unsigned long value; + unsigned long value, fp; if (reg < 16) return (!reg ? 0 : regs->u_regs[reg]); + + fp = regs->u_regs[UREG_FP]; + if (regs->tstate & TSTATE_PRIV) { struct reg_window *win; - win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window *)(fp + STACK_BIAS); value = win->locals[reg - 16]; - } else if (test_thread_flag(TIF_32BIT)) { + } else if (!test_thread_64bit_stack(fp)) { struct reg_window32 __user *win32; - win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP])); + win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp)); get_user(value, &win32->locals[reg - 16]); } else { struct reg_window __user *win; - win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window __user *)(fp + STACK_BIAS); get_user(value, &win->locals[reg - 16]); } return value; @@ -135,19 +138,24 @@ static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs) static unsigned long *fetch_reg_addr(unsigned int reg, struct pt_regs *regs) { + unsigned long fp; + if (reg < 16) return ®s->u_regs[reg]; + + fp = regs->u_regs[UREG_FP]; + if (regs->tstate & TSTATE_PRIV) { struct reg_window *win; - win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window *)(fp + STACK_BIAS); return &win->locals[reg - 16]; - } else if (test_thread_flag(TIF_32BIT)) { + } else if (!test_thread_64bit_stack(fp)) { struct reg_window32 *win32; - win32 = (struct reg_window32 *)((unsigned long)((u32)regs->u_regs[UREG_FP])); + win32 = (struct reg_window32 *)((unsigned long)((u32)fp)); return (unsigned long *)&win32->locals[reg - 16]; } else { struct reg_window *win; - win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window *)(fp + STACK_BIAS); return &win->locals[reg - 16]; } } @@ -392,13 +400,15 @@ int handle_popc(u32 insn, struct pt_regs *regs) if (rd) regs->u_regs[rd] = ret; } else { - if (test_thread_flag(TIF_32BIT)) { + unsigned long fp = regs->u_regs[UREG_FP]; + + if (!test_thread_64bit_stack(fp)) { struct reg_window32 __user *win32; - win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP])); + win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp)); put_user(ret, &win32->locals[rd - 16]); } else { struct reg_window __user *win; - win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window __user *)(fp + STACK_BIAS); put_user(ret, &win->locals[rd - 16]); } } @@ -554,7 +564,7 @@ void handle_ld_nf(u32 insn, struct pt_regs *regs) reg[0] = 0; if ((insn & 0x780000) == 0x180000) reg[1] = 0; - } else if (test_thread_flag(TIF_32BIT)) { + } else if (!test_thread_64bit_stack(regs->u_regs[UREG_FP])) { put_user(0, (int __user *) reg); if ((insn & 0x780000) == 0x180000) put_user(0, ((int __user *) reg) + 1); diff --git a/arch/sparc/kernel/visemul.c b/arch/sparc/kernel/visemul.c index 08e074b7..c096c62 100644 --- a/arch/sparc/kernel/visemul.c +++ b/arch/sparc/kernel/visemul.c @@ -149,21 +149,24 @@ static inline void maybe_flush_windows(unsigned int rs1, unsigned int rs2, static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs) { - unsigned long value; + unsigned long value, fp; if (reg < 16) return (!reg ? 0 : regs->u_regs[reg]); + + fp = regs->u_regs[UREG_FP]; + if (regs->tstate & TSTATE_PRIV) { struct reg_window *win; - win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window *)(fp + STACK_BIAS); value = win->locals[reg - 16]; - } else if (test_thread_flag(TIF_32BIT)) { + } else if (!test_thread_64bit_stack(fp)) { struct reg_window32 __user *win32; - win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP])); + win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp)); get_user(value, &win32->locals[reg - 16]); } else { struct reg_window __user *win; - win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window __user *)(fp + STACK_BIAS); get_user(value, &win->locals[reg - 16]); } return value; @@ -172,16 +175,18 @@ static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs) static inline unsigned long __user *__fetch_reg_addr_user(unsigned int reg, struct pt_regs *regs) { + unsigned long fp = regs->u_regs[UREG_FP]; + BUG_ON(reg < 16); BUG_ON(regs->tstate & TSTATE_PRIV); - if (test_thread_flag(TIF_32BIT)) { + if (!test_thread_64bit_stack(fp)) { struct reg_window32 __user *win32; - win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP])); + win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp)); return (unsigned long __user *)&win32->locals[reg - 16]; } else { struct reg_window __user *win; - win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window __user *)(fp + STACK_BIAS); return &win->locals[reg - 16]; } } @@ -204,7 +209,7 @@ static void store_reg(struct pt_regs *regs, unsigned long val, unsigned long rd) } else { unsigned long __user *rd_user = __fetch_reg_addr_user(rd, regs); - if (test_thread_flag(TIF_32BIT)) + if (!test_thread_64bit_stack(regs->u_regs[UREG_FP])) __put_user((u32)val, (u32 __user *)rd_user); else __put_user(val, rd_user); diff --git a/arch/sparc/kernel/winfixup.S b/arch/sparc/kernel/winfixup.S index a6b0863..1e67ce9 100644 --- a/arch/sparc/kernel/winfixup.S +++ b/arch/sparc/kernel/winfixup.S @@ -43,6 +43,8 @@ spill_fixup_mna: spill_fixup_dax: TRAP_LOAD_THREAD_REG(%g6, %g1) ldx [%g6 + TI_FLAGS], %g1 + andcc %sp, 0x1, %g0 + movne %icc, 0, %g1 andcc %g1, _TIF_32BIT, %g0 ldub [%g6 + TI_WSAVED], %g1 sll %g1, 3, %g3 diff --git a/arch/sparc/math-emu/math_64.c b/arch/sparc/math-emu/math_64.c index 1704068..034aadb 100644 --- a/arch/sparc/math-emu/math_64.c +++ b/arch/sparc/math-emu/math_64.c @@ -320,7 +320,7 @@ int do_mathemu(struct pt_regs *regs, struct fpustate *f, bool illegal_insn_trap) XR = 0; else if (freg < 16) XR = regs->u_regs[freg]; - else if (test_thread_flag(TIF_32BIT)) { + else if (!test_thread_64bit_stack(regs->u_regs[UREG_FP])) { struct reg_window32 __user *win32; flushw_user (); win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP])); -- cgit v0.10.2 From e13d5fef88c40b87c8430f8274c3a9ca32ef90bc Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Fri, 26 Oct 2012 15:35:45 -0700 Subject: target: Fix double-free of se_cmd in target_complete_tmr_failure Fabric drivers currently expect to internally release se_cmd in the event of a TMR failure during target_submit_tmr(), which means the immediate call to transport_generic_free_cmd() after TFO->queue_tm_rsp() from within target_complete_tmr_failure() workqueue context is wrong. This is done as some fabrics expect TMR operations to be acknowledged before releasing the descriptor, so the assumption that core is releasing se_cmd associated TMR memory is incorrect. This fixes a OOPs where transport_generic_free_cmd() was being called more than once. This bug was originally observed with tcm_qla2xxx fabric ports. Cc: Christoph Hellwig Cc: Roland Dreier Cc: Andy Grover Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index c33baff..9097155 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1616,7 +1616,6 @@ static void target_complete_tmr_failure(struct work_struct *work) se_cmd->se_tmr_req->response = TMR_LUN_DOES_NOT_EXIST; se_cmd->se_tfo->queue_tm_rsp(se_cmd); - transport_generic_free_cmd(se_cmd, 0); } /** -- cgit v0.10.2 From 1a1ff38c4cebf23be8bf0009a76b082a13bd25cb Mon Sep 17 00:00:00 2001 From: Bernhard Kohl Date: Wed, 24 Oct 2012 15:53:58 +0200 Subject: target: reintroduce some obsolete SCSI-2 commands With kernel 3.6 some obsolete SCSI-2 commands including SEEK_10 have have been removed by commit 1fd032ee10d2816c947f5d5b9abda95e728f0a8f "target: move code for CDB emulation". There are still clients out there which use these old SCSI-2 commands. This mainly happens when running VMs with legacy guest systems, connected via SCSI command pass-through to iSCSI targets. Make them happy and return status GOOD. Many real SCSI disks or external iSCSI storage devices still support these old commands. So let's make LIO backward compatible as well. This patch adds support for the previously removed SEEK_10 and additionally the SEEK_6 and REZERO_UNIT commands. Signed-off-by: Bernhard Kohl Reviewed-by: Christoph Hellwig Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index 868f8aa..a6e27d9 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -135,6 +135,12 @@ static int sbc_emulate_verify(struct se_cmd *cmd) return 0; } +static int sbc_emulate_noop(struct se_cmd *cmd) +{ + target_complete_cmd(cmd, GOOD); + return 0; +} + static inline u32 sbc_get_size(struct se_cmd *cmd, u32 sectors) { return cmd->se_dev->se_sub_dev->se_dev_attrib.block_size * sectors; @@ -531,6 +537,18 @@ int sbc_parse_cdb(struct se_cmd *cmd, struct spc_ops *ops) size = 0; cmd->execute_cmd = sbc_emulate_verify; break; + case REZERO_UNIT: + case SEEK_6: + case SEEK_10: + /* + * There are still clients out there which use these old SCSI-2 + * commands. This mainly happens when running VMs with legacy + * guest systems, connected via SCSI command pass-through to + * iSCSI targets. Make them happy and return status GOOD. + */ + size = 0; + cmd->execute_cmd = sbc_emulate_noop; + break; default: ret = spc_parse_cdb(cmd, &size); if (ret) -- cgit v0.10.2 From 7de5ae739a3786c9245af50ea0b4a363c6a0310c Mon Sep 17 00:00:00 2001 From: Shaik Ameer Basha Date: Tue, 16 Oct 2012 10:43:44 -0300 Subject: [media] exynos-gsc: change driver compatible string As G-Scaler is going to stay unchanged across all exynos5 series SoCs, changing the driver compatible string name to "samsung,exynos5-gsc" from "samsung,exynos5250-gsc". This change is as per the discussion in the devicetree forum. http://www.mail-archive.com/devicetree-discuss@lists.ozlabs.org/msg16448.html Signed-off-by: Shaik Ameer Basha Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c index bfec9e6..19cbb12 100644 --- a/drivers/media/platform/exynos-gsc/gsc-core.c +++ b/drivers/media/platform/exynos-gsc/gsc-core.c @@ -965,8 +965,10 @@ static struct platform_device_id gsc_driver_ids[] = { MODULE_DEVICE_TABLE(platform, gsc_driver_ids); static const struct of_device_id exynos_gsc_match[] = { - { .compatible = "samsung,exynos5250-gsc", - .data = &gsc_v_100_drvdata, }, + { + .compatible = "samsung,exynos5-gsc", + .data = &gsc_v_100_drvdata, + }, {}, }; MODULE_DEVICE_TABLE(of, exynos_gsc_match); -- cgit v0.10.2 From 0654f4ab2baa6100dc6b0b26f4f1fa3f02d10245 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 26 Oct 2012 22:49:09 +0200 Subject: ARM: at91: fix at91x40 build patch 738a0fd7 "ARM: at91: fix external interrupts in non-DT case" fixed a run-time error on some at91 platforms but did not apply the same change to at91x40, which now doesn't build. This changes at91x40 in the same way that the other platforms were changed. Signed-off-by: Arnd Bergmann Acked-by: Jean-Christophe PLAGNIOL-VILLARD diff --git a/arch/arm/mach-at91/at91x40.c b/arch/arm/mach-at91/at91x40.c index 6bd7300..bb7f544 100644 --- a/arch/arm/mach-at91/at91x40.c +++ b/arch/arm/mach-at91/at91x40.c @@ -88,6 +88,6 @@ void __init at91x40_init_interrupts(unsigned int priority[NR_AIC_IRQS]) if (!priority) priority = at91x40_default_irq_priority; - at91_aic_init(priority); + at91_aic_init(priority, at91_extern_irq); } -- cgit v0.10.2 From e09348c7570656c4d4a60e1e168ac5febe9b3f11 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Tue, 23 Oct 2012 10:17:49 +0200 Subject: ARM: mvebu: update defconfig with 3.7 changes The split of 370 and XP into two Kconfig options and the multiplatform kernel support has changed a few Kconfig symbols, so let's update the mvebu_defconfig file with the latest changes. Signed-off-by: Thomas Petazzoni Signed-off-by: Arnd Bergmann diff --git a/arch/arm/configs/mvebu_defconfig b/arch/arm/configs/mvebu_defconfig index 7bcf850..3458752 100644 --- a/arch/arm/configs/mvebu_defconfig +++ b/arch/arm/configs/mvebu_defconfig @@ -1,6 +1,6 @@ CONFIG_EXPERIMENTAL=y CONFIG_SYSVIPC=y -CONFIG_NO_HZ=y +CONFIG_IRQ_DOMAIN_DEBUG=y CONFIG_HIGH_RES_TIMERS=y CONFIG_LOG_BUF_SHIFT=14 CONFIG_BLK_DEV_INITRD=y @@ -9,10 +9,12 @@ CONFIG_SLAB=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_ARCH_MVEBU=y -CONFIG_MACH_ARMADA_370_XP=y +CONFIG_MACH_ARMADA_370=y +CONFIG_MACH_ARMADA_XP=y +# CONFIG_CACHE_L2X0 is not set CONFIG_AEABI=y CONFIG_HIGHMEM=y -CONFIG_USE_OF=y +# CONFIG_COMPACTION is not set CONFIG_ZBOOT_ROM_TEXT=0x0 CONFIG_ZBOOT_ROM_BSS=0x0 CONFIG_ARM_APPENDED_DTB=y @@ -23,6 +25,8 @@ CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_OF_PLATFORM=y CONFIG_GPIOLIB=y CONFIG_GPIO_SYSFS=y +# CONFIG_USB_SUPPORT is not set +# CONFIG_IOMMU_SUPPORT is not set CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y # CONFIG_EXT3_FS_XATTR is not set -- cgit v0.10.2 From 5b627ba0f549856486e8fd8e924ded8290e894f4 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 26 Oct 2012 23:06:43 +0200 Subject: ARM: versatile: fix versatile_defconfig With the introduction of CONFIG_ARCH_MULTIPLATFORM, versatile is no longer the default platform, so we need to enable CONFIG_ARCH_VERSATILE explicitly in order for that to be selected rather than the multiplatform configuration. Signed-off-by: Arnd Bergmann diff --git a/arch/arm/configs/versatile_defconfig b/arch/arm/configs/versatile_defconfig index cdd4d2b..2ba9e63 100644 --- a/arch/arm/configs/versatile_defconfig +++ b/arch/arm/configs/versatile_defconfig @@ -1,3 +1,4 @@ +CONFIG_ARCH_VERSATILE=y CONFIG_EXPERIMENTAL=y # CONFIG_LOCALVERSION_AUTO is not set CONFIG_SYSVIPC=y -- cgit v0.10.2 From 943bb48755a7f70ee36e029904ed8b679bb1da58 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sat, 27 Oct 2012 17:41:13 +0200 Subject: Revert "ARM i.MX25: Fix PWM per clock lookups" This reverts commit 92063cee118655d25b50d04eb77b012f3287357a, it was applied prematurely, causing this build error for imx_v4_v5_defconfig: arch/arm/mach-imx/clk-imx25.c: In function 'mx25_clocks_init': arch/arm/mach-imx/clk-imx25.c:206:26: error: 'pwm_ipg_per' undeclared (first use in this function) arch/arm/mach-imx/clk-imx25.c:206:26: note: each undeclared identifier is reported only once for each function it appears in Sascha Hauer explains: > There are several gates missing in clk-imx25.c. I have a patch which > adds support for them and I seem to have missed that the above depends > on it. Signed-off-by: Arnd Bergmann diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c index 840fdfa..01e2f84 100644 --- a/arch/arm/mach-imx/clk-imx25.c +++ b/arch/arm/mach-imx/clk-imx25.c @@ -203,13 +203,13 @@ int __init mx25_clocks_init(void) clk_register_clkdev(clk[cspi2_ipg], NULL, "imx35-cspi.1"); clk_register_clkdev(clk[cspi3_ipg], NULL, "imx35-cspi.2"); clk_register_clkdev(clk[pwm1_ipg], "ipg", "mxc_pwm.0"); - clk_register_clkdev(clk[pwm_ipg_per], "per", "mxc_pwm.0"); + clk_register_clkdev(clk[per10], "per", "mxc_pwm.0"); clk_register_clkdev(clk[pwm1_ipg], "ipg", "mxc_pwm.1"); - clk_register_clkdev(clk[pwm_ipg_per], "per", "mxc_pwm.1"); + clk_register_clkdev(clk[per10], "per", "mxc_pwm.1"); clk_register_clkdev(clk[pwm1_ipg], "ipg", "mxc_pwm.2"); - clk_register_clkdev(clk[pwm_ipg_per], "per", "mxc_pwm.2"); + clk_register_clkdev(clk[per10], "per", "mxc_pwm.2"); clk_register_clkdev(clk[pwm1_ipg], "ipg", "mxc_pwm.3"); - clk_register_clkdev(clk[pwm_ipg_per], "per", "mxc_pwm.3"); + clk_register_clkdev(clk[per10], "per", "mxc_pwm.3"); clk_register_clkdev(clk[kpp_ipg], NULL, "imx-keypad"); clk_register_clkdev(clk[tsc_ipg], NULL, "mx25-adc"); clk_register_clkdev(clk[i2c_ipg_per], NULL, "imx-i2c.0"); -- cgit v0.10.2 From c9c55d9211150b589d2d39a45cf5f96c70a51a47 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Fri, 26 Oct 2012 14:26:04 -0500 Subject: gpio/omap: fix off-mode bug: clear debounce settings on free/reset This change was originally titled "gpio/omap: fix off-mode bug: clear debounce clock enable mask on free/reset". The title has been updated slightly to reflect (what should be) the final fix. When a GPIO is freed or shutdown, we need to ensure that any debounce settings are cleared and if the GPIO is the only GPIO in the bank that is currently using debounce, then disable the debounce clock as well to save power. Currently, the debounce settings are not cleared on a GPIO free or shutdown and so during a context restore on subsequent off-mode transition, the previous debounce values are restored from the shadow copies (bank->context.debounce*) leading to mismatch state between driver state and hardware state. This was discovered when board code was doing gpio_request_one() gpio_set_debounce() gpio_free() which was leaving the GPIO debounce settings in a confused state. If that GPIO bank is subsequently used with off-mode enabled, bogus state would be restored, leaving GPIO debounce enabled which then prevented the CORE powerdomain from transitioning. To fix this, introduce a new function called _clear_gpio_debounce() to clear any debounce settings when the GPIO is freed or shutdown. If this GPIO is the last debounce-enabled GPIO in the bank, the debounce will also be cut. Please note that we cannot use _gpio_dbck_disable() to disable the debounce clock because this has been specifically created for the gpio suspend path and is intended to shutdown the debounce clock while debounce is enabled. Special thanks to Kevin Hilman for root causing the bug. This fix is a collaborative effort with inputs from Kevin Hilman, Grazvydas Ignotas and Santosh Shilimkar. Testing: - This has been unit tested on an OMAP3430 Beagle board, by requesting a gpio, enabling debounce and then freeing the gpio and checking the register contents, the saved register context and the debounce clock state. - Kevin Hilman tested on 37xx/EVM board which configures GPIO debounce for the ads7846 touchscreen in its board file using the above sequence, and so was failing off-mode tests in dynamic idle. Verified that off-mode tests are passing with this patch. V5 changes: - Corrected author Reported-by: Paul Walmsley Cc: Igor Grinberg Cc: Grazvydas Ignotas Cc: Jon Hunter Signed-off-by: Jon Hunter Reviewed-by: Kevin Hilman Tested-by: Kevin Hilman Acked-by: Santosh Shilimkar Signed-off-by: Linus Walleij diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index 94cbc84..d335af1 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -251,6 +251,40 @@ static void _set_gpio_debounce(struct gpio_bank *bank, unsigned gpio, } } +/** + * _clear_gpio_debounce - clear debounce settings for a gpio + * @bank: the gpio bank we're acting upon + * @gpio: the gpio number on this @gpio + * + * If a gpio is using debounce, then clear the debounce enable bit and if + * this is the only gpio in this bank using debounce, then clear the debounce + * time too. The debounce clock will also be disabled when calling this function + * if this is the only gpio in the bank using debounce. + */ +static void _clear_gpio_debounce(struct gpio_bank *bank, unsigned gpio) +{ + u32 gpio_bit = GPIO_BIT(bank, gpio); + + if (!bank->dbck_flag) + return; + + if (!(bank->dbck_enable_mask & gpio_bit)) + return; + + bank->dbck_enable_mask &= ~gpio_bit; + bank->context.debounce_en &= ~gpio_bit; + __raw_writel(bank->context.debounce_en, + bank->base + bank->regs->debounce_en); + + if (!bank->dbck_enable_mask) { + bank->context.debounce = 0; + __raw_writel(bank->context.debounce, bank->base + + bank->regs->debounce); + clk_disable(bank->dbck); + bank->dbck_enabled = false; + } +} + static inline void set_gpio_trigger(struct gpio_bank *bank, int gpio, unsigned trigger) { @@ -539,6 +573,7 @@ static void _reset_gpio(struct gpio_bank *bank, int gpio) _set_gpio_irqenable(bank, gpio, 0); _clear_gpio_irqstatus(bank, gpio); _set_gpio_triggering(bank, GPIO_INDEX(bank, gpio), IRQ_TYPE_NONE); + _clear_gpio_debounce(bank, gpio); } /* Use disable_irq_wake() and enable_irq_wake() functions from drivers */ -- cgit v0.10.2 From 257d36fd696d76b622539c26af652d2a8a931ce9 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 3 Oct 2012 09:31:02 -0700 Subject: ASoC: zoom2: Fix compile error by including correct header files Also drop the includes that are no longer needed and just cause problems for the ARM common zImage. Acked-by: Peter Ujfalusi Signed-off-by: Tim Gardner [tony@atomide.com: updated to drop unneeded headers] Signed-off-by: Tony Lindgren Signed-off-by: Mark Brown diff --git a/sound/soc/omap/zoom2.c b/sound/soc/omap/zoom2.c index 677b567..1ff6bb9 100644 --- a/sound/soc/omap/zoom2.c +++ b/sound/soc/omap/zoom2.c @@ -21,15 +21,14 @@ #include #include +#include #include #include #include #include -#include -#include -#include #include +#include /* Register descriptions for twl4030 codec part */ #include -- cgit v0.10.2 From 19118eb8dc3cd6bb1b1fdf0e4ad62070c6683158 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Fri, 26 Oct 2012 12:33:08 +0200 Subject: ASoC: omap-dmic: Correct functional clock name We should really use "fck" when asking for the functional clock and not "dmic_fck". This way we can ensure that multiple dmic modules can exist in the system. Signed-off-by: Peter Ujfalusi Signed-off-by: Mark Brown diff --git a/sound/soc/omap/omap-dmic.c b/sound/soc/omap/omap-dmic.c index 68f2cd1..5a6aeaf 100644 --- a/sound/soc/omap/omap-dmic.c +++ b/sound/soc/omap/omap-dmic.c @@ -464,9 +464,9 @@ static __devinit int asoc_dmic_probe(struct platform_device *pdev) mutex_init(&dmic->mutex); - dmic->fclk = clk_get(dmic->dev, "dmic_fck"); + dmic->fclk = clk_get(dmic->dev, "fck"); if (IS_ERR(dmic->fclk)) { - dev_err(dmic->dev, "cant get dmic_fck\n"); + dev_err(dmic->dev, "cant get fck\n"); return -ENODEV; } -- cgit v0.10.2 From 2c5594df344cd1ff0cc9bf007dea3235582b3acf Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Fri, 26 Oct 2012 11:40:28 +0200 Subject: rcu: Fix unrecovered RCU user mode in syscall_trace_leave() On x86-64 syscall exit, 3 non exclusive events may happen looping in the following order: 1) Check if we need resched for user preemption, if so call schedule_user() 2) Check if we have pending signals, if so call do_notify_resume() 3) Check if we do syscall tracing, if so call syscall_trace_leave() However syscall_trace_leave() has been written assuming it directly follows the syscall and forget about the above possible 1st and 2nd steps. Now schedule_user() and do_notify_resume() exit in RCU user mode because they have most chances to resume userspace immediately and this avoids an rcu_user_enter() call in the syscall fast path. So by the time we call syscall_trace_leave(), we may well be in RCU user mode. To fix this up, simply call rcu_user_exit() in the beginning of this function. This fixes some reported RCU uses in extended quiescent state. Reported-by: Dave Jones Reported-by: Sergey Senozhatsky Signed-off-by: Frederic Weisbecker Tested-by: Sergey Senozhatsky Signed-off-by: Paul E. McKenney diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c index b00b33a..eff5b8c 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c @@ -1511,6 +1511,13 @@ void syscall_trace_leave(struct pt_regs *regs) { bool step; + /* + * We may come here right after calling schedule_user() + * or do_notify_resume(), in which case we can be in RCU + * user mode. + */ + rcu_user_exit(); + audit_syscall_exit(regs); if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) -- cgit v0.10.2 From 8d6b00f5d639cfc28487ef412589e35b4e6ac7c7 Mon Sep 17 00:00:00 2001 From: Paul Parsons Date: Fri, 19 Oct 2012 13:15:30 +0100 Subject: ARM: pxa: hx4700: Fix backlight PWM device number Recent changes to PXA PWM support changed the PXA27X PWM device numbering scheme. The linux-3.5 PXA PWM driver followed the hardware numbering scheme for the 4 PWMs, while the linux-3.6-rc1 PXA PWM driver has adopted a linear numbering scheme: Address Hardware 3.5 pwm_id 3.6-rc1 pwm_id 0x40b00000 PWM0 0 0 0x40b00010 PWM2 2 1 0x40c00000 PWM1 1 2 0x40c00010 PWM3 3 3 The hx4700 backlight uses PWM1 at 0x40c00000. Consequently the pwm_id must be changed from 1 to 2. This patch fixes the backlight PWM device number and at the same time moves from the legacy PWM API (pwm_id) to the new PWM API (pwm_lookup). Signed-off-by: Paul Parsons Cc: Thierry Reding Signed-off-by: Haojian Zhuang diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c index 5ecbd17..e2c6391 100644 --- a/arch/arm/mach-pxa/hx4700.c +++ b/arch/arm/mach-pxa/hx4700.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include #include @@ -556,7 +557,7 @@ static struct platform_device hx4700_lcd = { */ static struct platform_pwm_backlight_data backlight_data = { - .pwm_id = 1, + .pwm_id = -1, /* Superseded by pwm_lookup */ .max_brightness = 200, .dft_brightness = 100, .pwm_period_ns = 30923, @@ -571,6 +572,10 @@ static struct platform_device backlight = { }, }; +static struct pwm_lookup hx4700_pwm_lookup[] = { + PWM_LOOKUP("pxa27x-pwm.1", 0, "pwm-backlight", NULL), +}; + /* * USB "Transceiver" */ @@ -872,6 +877,7 @@ static void __init hx4700_init(void) pxa_set_stuart_info(NULL); platform_add_devices(devices, ARRAY_SIZE(devices)); + pwm_add_table(hx4700_pwm_lookup, ARRAY_SIZE(hx4700_pwm_lookup)); pxa_set_ficp_info(&ficp_info); pxa27x_set_i2c_power_info(NULL); -- cgit v0.10.2 From 510fcb0d331f314cd20d0067d56f29302846f47b Mon Sep 17 00:00:00 2001 From: Marko Katic Date: Thu, 25 Oct 2012 18:51:38 +0200 Subject: ARM: pxa/spitz_pm: Fix hang when resuming from STR Devices that use spitz_pm.c will fail to resume from STR (Suspend To Ram) when the charger plug is inserted or removed when a device is in STR mode. The culprit is a misconfigured gpio line - GPIO18. GPIO18 should be configured as a regular GPIO input but it gets configured as an alternate function GPIO18_RDY. And then later in postsuspend() it gets configured as a regular GPIO18 input line. Fix this by removing the GPIO18_RDY configuration so that GPIO18 only gets configured as a regular gpio input. Signed-off-by: Marko Katic Signed-off-by: Haojian Zhuang diff --git a/arch/arm/mach-pxa/spitz_pm.c b/arch/arm/mach-pxa/spitz_pm.c index 438f02f..842596d 100644 --- a/arch/arm/mach-pxa/spitz_pm.c +++ b/arch/arm/mach-pxa/spitz_pm.c @@ -86,10 +86,7 @@ static void spitz_discharge1(int on) gpio_set_value(SPITZ_GPIO_LED_GREEN, on); } -static unsigned long gpio18_config[] = { - GPIO18_RDY, - GPIO18_GPIO, -}; +static unsigned long gpio18_config = GPIO18_GPIO; static void spitz_presuspend(void) { @@ -112,7 +109,7 @@ static void spitz_presuspend(void) PGSR3 &= ~SPITZ_GPIO_G3_STROBE_BIT; PGSR2 |= GPIO_bit(SPITZ_GPIO_KEY_STROBE0); - pxa2xx_mfp_config(&gpio18_config[0], 1); + pxa2xx_mfp_config(&gpio18_config, 1); gpio_request_one(18, GPIOF_OUT_INIT_HIGH, "Unknown"); gpio_free(18); @@ -131,7 +128,6 @@ static void spitz_presuspend(void) static void spitz_postsuspend(void) { - pxa2xx_mfp_config(&gpio18_config[1], 1); } static int spitz_should_wakeup(unsigned int resume_on_alarm) -- cgit v0.10.2 From 270c10e00a1e557e068803a22e0556281ceb1830 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 27 Oct 2012 18:05:20 -0700 Subject: sparc64: Fix cpu strand yielding. For atomic backoff, we just loop over an exponentially backed off counter. This is extremely ineffective as it doesn't actually yield the cpu strand so that other competing strands can use the cpu core. In cpus previous to SPARC-T4 we have to do this in a slightly hackish way, by doing an operation with no side effects that also happens to mark the strand as unavailable. The mechanism we choose for this is three reads of the %ccr (condition-code) register into %g0 (the zero register). SPARC-T4 has an explicit "pause" instruction, and we'll make use of that in a subsequent commit. Yield strands also in cpu_relax(). We really should have done this a very long time ago. Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/backoff.h b/arch/sparc/include/asm/backoff.h index db3af0d..64b077b 100644 --- a/arch/sparc/include/asm/backoff.h +++ b/arch/sparc/include/asm/backoff.h @@ -13,7 +13,10 @@ #define BACKOFF_SPIN(reg, tmp, label) \ mov reg, tmp; \ -88: brnz,pt tmp, 88b; \ +88: rd %ccr, %g0; \ + rd %ccr, %g0; \ + rd %ccr, %g0; \ + brnz,pt tmp, 88b; \ sub tmp, 1, tmp; \ set BACKOFF_LIMIT, tmp; \ cmp reg, tmp; \ diff --git a/arch/sparc/include/asm/processor_64.h b/arch/sparc/include/asm/processor_64.h index 4e5a483..9865634 100644 --- a/arch/sparc/include/asm/processor_64.h +++ b/arch/sparc/include/asm/processor_64.h @@ -196,7 +196,10 @@ extern unsigned long get_wchan(struct task_struct *task); #define KSTK_EIP(tsk) (task_pt_regs(tsk)->tpc) #define KSTK_ESP(tsk) (task_pt_regs(tsk)->u_regs[UREG_FP]) -#define cpu_relax() barrier() +#define cpu_relax() asm volatile("rd %%ccr, %%g0\n\t" \ + "rd %%ccr, %%g0\n\t" \ + "rd %%ccr, %%g0" \ + ::: "memory") /* Prefetch support. This is tuned for UltraSPARC-III and later. * UltraSPARC-I will treat these as nops, and UltraSPARC-II has -- cgit v0.10.2 From e9b9eb59ffcdee09ec96b040f85c919618f4043e Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 27 Oct 2012 23:00:41 -0700 Subject: sparc64: Use pause instruction when available. In atomic backoff and cpu_relax(), use the pause instruction found on SPARC-T4 and later. It makes the cpu strand unselectable for the given number of cycles, unless an intervening disrupting trap occurs. Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/backoff.h b/arch/sparc/include/asm/backoff.h index 64b077b..20f01df 100644 --- a/arch/sparc/include/asm/backoff.h +++ b/arch/sparc/include/asm/backoff.h @@ -11,19 +11,25 @@ #define BACKOFF_LABEL(spin_label, continue_label) \ spin_label -#define BACKOFF_SPIN(reg, tmp, label) \ - mov reg, tmp; \ -88: rd %ccr, %g0; \ - rd %ccr, %g0; \ - rd %ccr, %g0; \ - brnz,pt tmp, 88b; \ - sub tmp, 1, tmp; \ - set BACKOFF_LIMIT, tmp; \ - cmp reg, tmp; \ - bg,pn %xcc, label; \ - nop; \ - ba,pt %xcc, label; \ - sllx reg, 1, reg; +#define BACKOFF_SPIN(reg, tmp, label) \ + mov reg, tmp; \ +88: rd %ccr, %g0; \ + rd %ccr, %g0; \ + rd %ccr, %g0; \ + .section .pause_patch,"ax"; \ + .word 88b; \ + sllx tmp, 7, tmp; \ + wr tmp, 0, %asr27; \ + clr tmp; \ + .previous; \ + brnz,pt tmp, 88b; \ + sub tmp, 1, tmp; \ + set BACKOFF_LIMIT, tmp; \ + cmp reg, tmp; \ + bg,pn %xcc, label; \ + nop; \ + ba,pt %xcc, label; \ + sllx reg, 1, reg; #else diff --git a/arch/sparc/include/asm/processor_64.h b/arch/sparc/include/asm/processor_64.h index 9865634..9cdf52e 100644 --- a/arch/sparc/include/asm/processor_64.h +++ b/arch/sparc/include/asm/processor_64.h @@ -196,9 +196,16 @@ extern unsigned long get_wchan(struct task_struct *task); #define KSTK_EIP(tsk) (task_pt_regs(tsk)->tpc) #define KSTK_ESP(tsk) (task_pt_regs(tsk)->u_regs[UREG_FP]) -#define cpu_relax() asm volatile("rd %%ccr, %%g0\n\t" \ - "rd %%ccr, %%g0\n\t" \ - "rd %%ccr, %%g0" \ +#define cpu_relax() asm volatile("\n99:\n\t" \ + "rd %%ccr, %%g0\n\t" \ + "rd %%ccr, %%g0\n\t" \ + "rd %%ccr, %%g0\n\t" \ + ".section .pause_patch,\"ax\"\n\t"\ + ".word 99b\n\t" \ + "wr %%g0, 128, %%asr27\n\t" \ + "nop\n\t" \ + "nop\n\t" \ + ".previous" \ ::: "memory") /* Prefetch support. This is tuned for UltraSPARC-III and later. diff --git a/arch/sparc/kernel/entry.h b/arch/sparc/kernel/entry.h index 0c218e4..51742df 100644 --- a/arch/sparc/kernel/entry.h +++ b/arch/sparc/kernel/entry.h @@ -59,6 +59,13 @@ struct popc_6insn_patch_entry { extern struct popc_6insn_patch_entry __popc_6insn_patch, __popc_6insn_patch_end; +struct pause_patch_entry { + unsigned int addr; + unsigned int insns[3]; +}; +extern struct pause_patch_entry __pause_patch, + __pause_patch_end; + extern void __init per_cpu_patch(void); extern void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *, struct sun4v_1insn_patch_entry *); diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c index 0800e71..b45cff4 100644 --- a/arch/sparc/kernel/setup_64.c +++ b/arch/sparc/kernel/setup_64.c @@ -316,6 +316,25 @@ static void __init popc_patch(void) } } +static void __init pause_patch(void) +{ + struct pause_patch_entry *p; + + p = &__pause_patch; + while (p < &__pause_patch_end) { + unsigned long i, addr = p->addr; + + for (i = 0; i < 3; i++) { + *(unsigned int *) (addr + (i * 4)) = p->insns[i]; + wmb(); + __asm__ __volatile__("flush %0" + : : "r" (addr + (i * 4))); + } + + p++; + } +} + #ifdef CONFIG_SMP void __init boot_cpu_id_too_large(int cpu) { @@ -528,6 +547,8 @@ static void __init init_sparc64_elf_hwcap(void) if (sparc64_elf_hwcap & AV_SPARC_POPC) popc_patch(); + if (sparc64_elf_hwcap & AV_SPARC_PAUSE) + pause_patch(); } void __init setup_arch(char **cmdline_p) diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S index 89c2c29..847f9f7 100644 --- a/arch/sparc/kernel/vmlinux.lds.S +++ b/arch/sparc/kernel/vmlinux.lds.S @@ -132,6 +132,11 @@ SECTIONS *(.popc_6insn_patch) __popc_6insn_patch_end = .; } + .pause_patch : { + __pause_patch = .; + *(.pause_patch) + __pause_patch_end = .; + } PERCPU_SECTION(SMP_CACHE_BYTES) . = ALIGN(PAGE_SIZE); -- cgit v0.10.2 From 5c1eabe68501d1e1b1586c7f4c46cc531828c4ab Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Mon, 22 Oct 2012 19:37:47 -0400 Subject: percpu-rw-semaphores: use light/heavy barriers This patch introduces new barrier pair light_mb() and heavy_mb() for percpu rw semaphores. This patch fixes a bug in percpu-rw-semaphores where a barrier was missing in percpu_up_write. This patch improves performance on the read path of percpu-rw-semaphores: on non-x86 cpus, there was a smp_mb() in percpu_up_read. This patch changes it to a compiler barrier and removes the "#if defined(X86) ..." condition. From: Lai Jiangshan Signed-off-by: Mikulas Patocka Signed-off-by: Linus Torvalds diff --git a/include/linux/percpu-rwsem.h b/include/linux/percpu-rwsem.h index cf80f7e..18f35b5 100644 --- a/include/linux/percpu-rwsem.h +++ b/include/linux/percpu-rwsem.h @@ -12,6 +12,9 @@ struct percpu_rw_semaphore { struct mutex mtx; }; +#define light_mb() barrier() +#define heavy_mb() synchronize_sched() + static inline void percpu_down_read(struct percpu_rw_semaphore *p) { rcu_read_lock(); @@ -24,22 +27,12 @@ static inline void percpu_down_read(struct percpu_rw_semaphore *p) } this_cpu_inc(*p->counters); rcu_read_unlock(); + light_mb(); /* A, between read of p->locked and read of data, paired with D */ } static inline void percpu_up_read(struct percpu_rw_semaphore *p) { - /* - * On X86, write operation in this_cpu_dec serves as a memory unlock - * barrier (i.e. memory accesses may be moved before the write, but - * no memory accesses are moved past the write). - * On other architectures this may not be the case, so we need smp_mb() - * there. - */ -#if defined(CONFIG_X86) && (!defined(CONFIG_X86_PPRO_FENCE) && !defined(CONFIG_X86_OOSTORE)) - barrier(); -#else - smp_mb(); -#endif + light_mb(); /* B, between read of the data and write to p->counter, paired with C */ this_cpu_dec(*p->counters); } @@ -61,11 +54,12 @@ static inline void percpu_down_write(struct percpu_rw_semaphore *p) synchronize_rcu(); while (__percpu_count(p->counters)) msleep(1); - smp_rmb(); /* paired with smp_mb() in percpu_sem_up_read() */ + heavy_mb(); /* C, between read of p->counter and write to data, paired with B */ } static inline void percpu_up_write(struct percpu_rw_semaphore *p) { + heavy_mb(); /* D, between write to data and write to p->locked, paired with A */ p->locked = false; mutex_unlock(&p->mtx); } -- cgit v0.10.2 From 1bf11c53535ab87e3bf14ecdf6747bf46f601c5d Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Mon, 22 Oct 2012 19:39:16 -0400 Subject: percpu-rw-semaphores: use rcu_read_lock_sched Use rcu_read_lock_sched / rcu_read_unlock_sched / synchronize_sched instead of rcu_read_lock / rcu_read_unlock / synchronize_rcu. This is an optimization. The RCU-protected region is very small, so there will be no latency problems if we disable preempt in this region. So we use rcu_read_lock_sched / rcu_read_unlock_sched that translates to preempt_disable / preempt_disable. It is smaller (and supposedly faster) than preemptible rcu_read_lock / rcu_read_unlock. Signed-off-by: Mikulas Patocka Signed-off-by: Linus Torvalds diff --git a/include/linux/percpu-rwsem.h b/include/linux/percpu-rwsem.h index 18f35b5..250a4ac 100644 --- a/include/linux/percpu-rwsem.h +++ b/include/linux/percpu-rwsem.h @@ -17,16 +17,16 @@ struct percpu_rw_semaphore { static inline void percpu_down_read(struct percpu_rw_semaphore *p) { - rcu_read_lock(); + rcu_read_lock_sched(); if (unlikely(p->locked)) { - rcu_read_unlock(); + rcu_read_unlock_sched(); mutex_lock(&p->mtx); this_cpu_inc(*p->counters); mutex_unlock(&p->mtx); return; } this_cpu_inc(*p->counters); - rcu_read_unlock(); + rcu_read_unlock_sched(); light_mb(); /* A, between read of p->locked and read of data, paired with D */ } @@ -51,7 +51,7 @@ static inline void percpu_down_write(struct percpu_rw_semaphore *p) { mutex_lock(&p->mtx); p->locked = true; - synchronize_rcu(); + synchronize_sched(); /* make sure that all readers exit the rcu_read_lock_sched region */ while (__percpu_count(p->counters)) msleep(1); heavy_mb(); /* C, between read of p->counter and write to data, paired with B */ -- cgit v0.10.2 From 1a25b1c4ce189e3926f2981f3302352a930086db Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Mon, 15 Oct 2012 17:20:17 -0400 Subject: Lock splice_read and splice_write functions Functions generic_file_splice_read and generic_file_splice_write access the pagecache directly. For block devices these functions must be locked so that block size is not changed while they are in progress. This patch is an additional fix for commit b87570f5d349 ("Fix a crash when block device is read and block size is changed at the same time") that locked aio_read, aio_write and mmap against block size change. Signed-off-by: Mikulas Patocka Signed-off-by: Linus Torvalds diff --git a/fs/block_dev.c b/fs/block_dev.c index b3c1d3d..1a1e5e3 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1661,6 +1661,39 @@ static int blkdev_mmap(struct file *file, struct vm_area_struct *vma) return ret; } +static ssize_t blkdev_splice_read(struct file *file, loff_t *ppos, + struct pipe_inode_info *pipe, size_t len, + unsigned int flags) +{ + ssize_t ret; + struct block_device *bdev = I_BDEV(file->f_mapping->host); + + percpu_down_read(&bdev->bd_block_size_semaphore); + + ret = generic_file_splice_read(file, ppos, pipe, len, flags); + + percpu_up_read(&bdev->bd_block_size_semaphore); + + return ret; +} + +static ssize_t blkdev_splice_write(struct pipe_inode_info *pipe, + struct file *file, loff_t *ppos, size_t len, + unsigned int flags) +{ + ssize_t ret; + struct block_device *bdev = I_BDEV(file->f_mapping->host); + + percpu_down_read(&bdev->bd_block_size_semaphore); + + ret = generic_file_splice_write(pipe, file, ppos, len, flags); + + percpu_up_read(&bdev->bd_block_size_semaphore); + + return ret; +} + + /* * Try to release a page associated with block device when the system * is under memory pressure. @@ -1699,8 +1732,8 @@ const struct file_operations def_blk_fops = { #ifdef CONFIG_COMPAT .compat_ioctl = compat_blkdev_ioctl, #endif - .splice_read = generic_file_splice_read, - .splice_write = generic_file_splice_write, + .splice_read = blkdev_splice_read, + .splice_write = blkdev_splice_write, }; int ioctl_by_bdev(struct block_device *bdev, unsigned cmd, unsigned long arg) -- cgit v0.10.2 From b2da55d9441cbdaf73c12403ed801b644d5ae5e3 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Sun, 28 Oct 2012 16:01:11 +0100 Subject: Regulator: core: Unregister when gpio request fails. If the gpio_request_one() fails, or returns EPROBE_DEFER, the regulator must be device_unregister()ed. When this is not done, there are WARNING: from sysfs: WARNING: at fs/sysfs/file.c:343 sysfs_open_file+0x238/0x268() Signed-off-by: Andrew Lunn Signed-off-by: Mark Brown diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 5c4829c..aa4d28b 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -3365,7 +3365,7 @@ regulator_register(const struct regulator_desc *regulator_desc, if (ret != 0) { rdev_err(rdev, "Failed to request enable GPIO%d: %d\n", config->ena_gpio, ret); - goto clean; + goto wash; } rdev->ena_gpio = config->ena_gpio; @@ -3449,6 +3449,7 @@ scrub: if (rdev->ena_gpio) gpio_free(rdev->ena_gpio); kfree(rdev->constraints); +wash: device_unregister(&rdev->dev); /* device core frees rdev */ rdev = ERR_PTR(ret); -- cgit v0.10.2 From 8f0d8163b50e01f398b14bcd4dc039ac5ab18d64 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 28 Oct 2012 12:24:48 -0700 Subject: Linux 3.7-rc3 diff --git a/Makefile b/Makefile index 14c93b3..42d0e56 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 7 SUBLEVEL = 0 -EXTRAVERSION = -rc2 +EXTRAVERSION = -rc3 NAME = Terrified Chipmunk # *DOCUMENTATION* -- cgit v0.10.2 From 187818cd6a5ab6343eac47e52da2f3e40c544b98 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 28 Oct 2012 13:04:47 -0700 Subject: sparc64: Improvde documentation and readability of atomic backoff code. Document what's going on in asm/backoff.h with a large and descriptive comment. Refer to it above the cpu_relax() definition in asm/processor_64.h Rename the pause patching section to have "3insn" in it's name like the other patching sections do. Based upon feedback from Sam Ravnborg. Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/backoff.h b/arch/sparc/include/asm/backoff.h index 20f01df..4e02086 100644 --- a/arch/sparc/include/asm/backoff.h +++ b/arch/sparc/include/asm/backoff.h @@ -1,6 +1,46 @@ #ifndef _SPARC64_BACKOFF_H #define _SPARC64_BACKOFF_H +/* The macros in this file implement an exponential backoff facility + * for atomic operations. + * + * When multiple threads compete on an atomic operation, it is + * possible for one thread to be continually denied a successful + * completion of the compare-and-swap instruction. Heavily + * threaded cpu implementations like Niagara can compound this + * problem even further. + * + * When an atomic operation fails and needs to be retried, we spin a + * certain number of times. At each subsequent failure of the same + * operation we double the spin count, realizing an exponential + * backoff. + * + * When we spin, we try to use an operation that will cause the + * current cpu strand to block, and therefore make the core fully + * available to any other other runnable strands. There are two + * options, based upon cpu capabilities. + * + * On all cpus prior to SPARC-T4 we do three dummy reads of the + * condition code register. Each read blocks the strand for something + * between 40 and 50 cpu cycles. + * + * For SPARC-T4 and later we have a special "pause" instruction + * available. This is implemented using writes to register %asr27. + * The cpu will block the number of cycles written into the register, + * unless a disrupting trap happens first. SPARC-T4 specifically + * implements pause with a granularity of 8 cycles. Each strand has + * an internal pause counter which decrements every 8 cycles. So the + * chip shifts the %asr27 value down by 3 bits, and writes the result + * into the pause counter. If a value smaller than 8 is written, the + * chip blocks for 1 cycle. + * + * To achieve the same amount of backoff as the three %ccr reads give + * on earlier chips, we shift the backoff value up by 7 bits. (Three + * %ccr reads block for about 128 cycles, 1 << 7 == 128) We write the + * whole amount we want to block into the pause register, rather than + * loop writing 128 each time. + */ + #define BACKOFF_LIMIT (4 * 1024) #ifdef CONFIG_SMP @@ -16,7 +56,7 @@ 88: rd %ccr, %g0; \ rd %ccr, %g0; \ rd %ccr, %g0; \ - .section .pause_patch,"ax"; \ + .section .pause_3insn_patch,"ax";\ .word 88b; \ sllx tmp, 7, tmp; \ wr tmp, 0, %asr27; \ diff --git a/arch/sparc/include/asm/processor_64.h b/arch/sparc/include/asm/processor_64.h index 9cdf52e..721e25f 100644 --- a/arch/sparc/include/asm/processor_64.h +++ b/arch/sparc/include/asm/processor_64.h @@ -196,11 +196,16 @@ extern unsigned long get_wchan(struct task_struct *task); #define KSTK_EIP(tsk) (task_pt_regs(tsk)->tpc) #define KSTK_ESP(tsk) (task_pt_regs(tsk)->u_regs[UREG_FP]) +/* Please see the commentary in asm/backoff.h for a description of + * what these instructions are doing and how they have been choosen. + * To make a long story short, we are trying to yield the current cpu + * strand during busy loops. + */ #define cpu_relax() asm volatile("\n99:\n\t" \ "rd %%ccr, %%g0\n\t" \ "rd %%ccr, %%g0\n\t" \ "rd %%ccr, %%g0\n\t" \ - ".section .pause_patch,\"ax\"\n\t"\ + ".section .pause_3insn_patch,\"ax\"\n\t"\ ".word 99b\n\t" \ "wr %%g0, 128, %%asr27\n\t" \ "nop\n\t" \ diff --git a/arch/sparc/kernel/entry.h b/arch/sparc/kernel/entry.h index 51742df..cc3c5cb 100644 --- a/arch/sparc/kernel/entry.h +++ b/arch/sparc/kernel/entry.h @@ -63,8 +63,8 @@ struct pause_patch_entry { unsigned int addr; unsigned int insns[3]; }; -extern struct pause_patch_entry __pause_patch, - __pause_patch_end; +extern struct pause_patch_entry __pause_3insn_patch, + __pause_3insn_patch_end; extern void __init per_cpu_patch(void); extern void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *, diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c index b45cff4..0eaf005 100644 --- a/arch/sparc/kernel/setup_64.c +++ b/arch/sparc/kernel/setup_64.c @@ -320,8 +320,8 @@ static void __init pause_patch(void) { struct pause_patch_entry *p; - p = &__pause_patch; - while (p < &__pause_patch_end) { + p = &__pause_3insn_patch; + while (p < &__pause_3insn_patch_end) { unsigned long i, addr = p->addr; for (i = 0; i < 3; i++) { diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S index 847f9f7..0bacceb 100644 --- a/arch/sparc/kernel/vmlinux.lds.S +++ b/arch/sparc/kernel/vmlinux.lds.S @@ -132,10 +132,10 @@ SECTIONS *(.popc_6insn_patch) __popc_6insn_patch_end = .; } - .pause_patch : { - __pause_patch = .; - *(.pause_patch) - __pause_patch_end = .; + .pause_3insn_patch : { + __pause_3insn_patch = .; + *(.pause_3insn_patch) + __pause_3insn_patch_end = .; } PERCPU_SECTION(SMP_CACHE_BYTES) -- cgit v0.10.2 From 1df35f80f9d3bba7cd434b64c9eaff8c9109abad Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 28 Oct 2012 13:15:09 -0700 Subject: sparc: Wire up sys_kcmp. Signed-off-by: David S. Miller diff --git a/arch/sparc/include/uapi/asm/unistd.h b/arch/sparc/include/uapi/asm/unistd.h index bed86a8..cac719d 100644 --- a/arch/sparc/include/uapi/asm/unistd.h +++ b/arch/sparc/include/uapi/asm/unistd.h @@ -406,8 +406,9 @@ #define __NR_process_vm_readv 338 #define __NR_process_vm_writev 339 #define __NR_kern_features 340 +#define __NR_kcmp 341 -#define NR_syscalls 341 +#define NR_syscalls 342 /* Bitmask values returned from kern_features system call. */ #define KERN_FEATURE_MIXED_MODE_STACK 0x00000001 diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S index 63402f9..5147f57 100644 --- a/arch/sparc/kernel/systbls_32.S +++ b/arch/sparc/kernel/systbls_32.S @@ -85,3 +85,4 @@ sys_call_table: /*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init /*330*/ .long sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime /*335*/ .long sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev +/*340*/ .long sys_ni_syscall, sys_kcmp diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index 45ce6be..1c9af9f 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -86,7 +86,7 @@ sys_call_table32: .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open, compat_sys_recvmmsg, sys_fanotify_init /*330*/ .word sys32_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, compat_sys_open_by_handle_at, compat_sys_clock_adjtime .word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev -/*340*/ .word sys_kern_features +/*340*/ .word sys_kern_features, sys_kcmp #endif /* CONFIG_COMPAT */ @@ -164,4 +164,4 @@ sys_call_table: .word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init /*330*/ .word sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime .word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev -/*340*/ .word sys_kern_features +/*340*/ .word sys_kern_features, sys_kcmp -- cgit v0.10.2 From f7e8d9f830b118cfe757140d910834afd1710001 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 28 Oct 2012 13:26:37 -0700 Subject: qlogicpti: Fix build warning. The build warns: drivers/scsi/qlogicpti.c: In function 'qpti_sbus_probe': drivers/scsi/qlogicpti.c:1316:45: warning: passing argument 1 of 'scsi_host_alloc' discards 'const' qualifier from pointer target type [enabled by default] include/scsi/scsi_host.h:778:26: note: expected 'struct scsi_host_template *' but argument is of type 'const struct scsi_host_template *' The problem is that of_device_id->data is a const void pointer. This is pretty silly in this specific instance, because for all matched device IDs we set match->data to the same value, &qpti_template. So just use that directly instead of the unnecessary and improperly typed abstraction. Signed-off-by: David S. Miller diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c index b191dd5..71fddbc 100644 --- a/drivers/scsi/qlogicpti.c +++ b/drivers/scsi/qlogicpti.c @@ -1294,26 +1294,19 @@ static struct scsi_host_template qpti_template = { static const struct of_device_id qpti_match[]; static int __devinit qpti_sbus_probe(struct platform_device *op) { - const struct of_device_id *match; - struct scsi_host_template *tpnt; struct device_node *dp = op->dev.of_node; struct Scsi_Host *host; struct qlogicpti *qpti; static int nqptis; const char *fcode; - match = of_match_device(qpti_match, &op->dev); - if (!match) - return -EINVAL; - tpnt = match->data; - /* Sometimes Antares cards come up not completely * setup, and we get a report of a zero IRQ. */ if (op->archdata.irqs[0] == 0) return -ENODEV; - host = scsi_host_alloc(tpnt, sizeof(struct qlogicpti)); + host = scsi_host_alloc(&qpti_template, sizeof(struct qlogicpti)); if (!host) return -ENOMEM; @@ -1445,19 +1438,15 @@ static int __devexit qpti_sbus_remove(struct platform_device *op) static const struct of_device_id qpti_match[] = { { .name = "ptisp", - .data = &qpti_template, }, { .name = "PTI,ptisp", - .data = &qpti_template, }, { .name = "QLGC,isp", - .data = &qpti_template, }, { .name = "SUNW,isp", - .data = &qpti_template, }, {}, }; -- cgit v0.10.2 From 31d178bffcff4c468c8c65bc42d9f4c0a7b8e3ec Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 28 Oct 2012 21:37:00 +0100 Subject: i2c-stub: Move to drivers/i2c Move the i2c-stub driver to drivers/i2c, to match the Kconfig entry. This is less confusing that way. I also fixed all checkpatch warnings and errors. Signed-off-by: Jean Delvare Cc: Peter Huewe diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile index beee6b2..1722f50 100644 --- a/drivers/i2c/Makefile +++ b/drivers/i2c/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_I2C_SMBUS) += i2c-smbus.o obj-$(CONFIG_I2C_CHARDEV) += i2c-dev.o obj-$(CONFIG_I2C_MUX) += i2c-mux.o obj-y += algos/ busses/ muxes/ +obj-$(CONFIG_I2C_STUB) += i2c-stub.o ccflags-$(CONFIG_I2C_DEBUG_CORE) := -DDEBUG CFLAGS_i2c-core.o := -Wno-deprecated-declarations diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile index 2d33d62..395b516 100644 --- a/drivers/i2c/busses/Makefile +++ b/drivers/i2c/busses/Makefile @@ -85,7 +85,6 @@ obj-$(CONFIG_I2C_ACORN) += i2c-acorn.o obj-$(CONFIG_I2C_ELEKTOR) += i2c-elektor.o obj-$(CONFIG_I2C_PCA_ISA) += i2c-pca-isa.o obj-$(CONFIG_I2C_SIBYTE) += i2c-sibyte.o -obj-$(CONFIG_I2C_STUB) += i2c-stub.o obj-$(CONFIG_SCx200_ACB) += scx200_acb.o obj-$(CONFIG_SCx200_I2C) += scx200_i2c.o diff --git a/drivers/i2c/busses/i2c-stub.c b/drivers/i2c/busses/i2c-stub.c deleted file mode 100644 index b1b34479..0000000 --- a/drivers/i2c/busses/i2c-stub.c +++ /dev/null @@ -1,222 +0,0 @@ -/* - i2c-stub.c - I2C/SMBus chip emulator - - Copyright (c) 2004 Mark M. Hoffman - Copyright (C) 2007 Jean Delvare - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#define DEBUG 1 - -#include -#include -#include -#include -#include -#include - -#define MAX_CHIPS 10 -#define STUB_FUNC (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | \ - I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | \ - I2C_FUNC_SMBUS_I2C_BLOCK) - -static unsigned short chip_addr[MAX_CHIPS]; -module_param_array(chip_addr, ushort, NULL, S_IRUGO); -MODULE_PARM_DESC(chip_addr, - "Chip addresses (up to 10, between 0x03 and 0x77)"); - -static unsigned long functionality = STUB_FUNC; -module_param(functionality, ulong, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(functionality, "Override functionality bitfield"); - -struct stub_chip { - u8 pointer; - u16 words[256]; /* Byte operations use the LSB as per SMBus - specification */ -}; - -static struct stub_chip *stub_chips; - -/* Return negative errno on error. */ -static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags, - char read_write, u8 command, int size, union i2c_smbus_data * data) -{ - s32 ret; - int i, len; - struct stub_chip *chip = NULL; - - /* Search for the right chip */ - for (i = 0; i < MAX_CHIPS && chip_addr[i]; i++) { - if (addr == chip_addr[i]) { - chip = stub_chips + i; - break; - } - } - if (!chip) - return -ENODEV; - - switch (size) { - - case I2C_SMBUS_QUICK: - dev_dbg(&adap->dev, "smbus quick - addr 0x%02x\n", addr); - ret = 0; - break; - - case I2C_SMBUS_BYTE: - if (read_write == I2C_SMBUS_WRITE) { - chip->pointer = command; - dev_dbg(&adap->dev, "smbus byte - addr 0x%02x, " - "wrote 0x%02x.\n", - addr, command); - } else { - data->byte = chip->words[chip->pointer++] & 0xff; - dev_dbg(&adap->dev, "smbus byte - addr 0x%02x, " - "read 0x%02x.\n", - addr, data->byte); - } - - ret = 0; - break; - - case I2C_SMBUS_BYTE_DATA: - if (read_write == I2C_SMBUS_WRITE) { - chip->words[command] &= 0xff00; - chip->words[command] |= data->byte; - dev_dbg(&adap->dev, "smbus byte data - addr 0x%02x, " - "wrote 0x%02x at 0x%02x.\n", - addr, data->byte, command); - } else { - data->byte = chip->words[command] & 0xff; - dev_dbg(&adap->dev, "smbus byte data - addr 0x%02x, " - "read 0x%02x at 0x%02x.\n", - addr, data->byte, command); - } - chip->pointer = command + 1; - - ret = 0; - break; - - case I2C_SMBUS_WORD_DATA: - if (read_write == I2C_SMBUS_WRITE) { - chip->words[command] = data->word; - dev_dbg(&adap->dev, "smbus word data - addr 0x%02x, " - "wrote 0x%04x at 0x%02x.\n", - addr, data->word, command); - } else { - data->word = chip->words[command]; - dev_dbg(&adap->dev, "smbus word data - addr 0x%02x, " - "read 0x%04x at 0x%02x.\n", - addr, data->word, command); - } - - ret = 0; - break; - - case I2C_SMBUS_I2C_BLOCK_DATA: - len = data->block[0]; - if (read_write == I2C_SMBUS_WRITE) { - for (i = 0; i < len; i++) { - chip->words[command + i] &= 0xff00; - chip->words[command + i] |= data->block[1 + i]; - } - dev_dbg(&adap->dev, "i2c block data - addr 0x%02x, " - "wrote %d bytes at 0x%02x.\n", - addr, len, command); - } else { - for (i = 0; i < len; i++) { - data->block[1 + i] = - chip->words[command + i] & 0xff; - } - dev_dbg(&adap->dev, "i2c block data - addr 0x%02x, " - "read %d bytes at 0x%02x.\n", - addr, len, command); - } - - ret = 0; - break; - - default: - dev_dbg(&adap->dev, "Unsupported I2C/SMBus command\n"); - ret = -EOPNOTSUPP; - break; - } /* switch (size) */ - - return ret; -} - -static u32 stub_func(struct i2c_adapter *adapter) -{ - return STUB_FUNC & functionality; -} - -static const struct i2c_algorithm smbus_algorithm = { - .functionality = stub_func, - .smbus_xfer = stub_xfer, -}; - -static struct i2c_adapter stub_adapter = { - .owner = THIS_MODULE, - .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, - .algo = &smbus_algorithm, - .name = "SMBus stub driver", -}; - -static int __init i2c_stub_init(void) -{ - int i, ret; - - if (!chip_addr[0]) { - printk(KERN_ERR "i2c-stub: Please specify a chip address\n"); - return -ENODEV; - } - - for (i = 0; i < MAX_CHIPS && chip_addr[i]; i++) { - if (chip_addr[i] < 0x03 || chip_addr[i] > 0x77) { - printk(KERN_ERR "i2c-stub: Invalid chip address " - "0x%02x\n", chip_addr[i]); - return -EINVAL; - } - - printk(KERN_INFO "i2c-stub: Virtual chip at 0x%02x\n", - chip_addr[i]); - } - - /* Allocate memory for all chips at once */ - stub_chips = kzalloc(i * sizeof(struct stub_chip), GFP_KERNEL); - if (!stub_chips) { - printk(KERN_ERR "i2c-stub: Out of memory\n"); - return -ENOMEM; - } - - ret = i2c_add_adapter(&stub_adapter); - if (ret) - kfree(stub_chips); - return ret; -} - -static void __exit i2c_stub_exit(void) -{ - i2c_del_adapter(&stub_adapter); - kfree(stub_chips); -} - -MODULE_AUTHOR("Mark M. Hoffman "); -MODULE_DESCRIPTION("I2C stub driver"); -MODULE_LICENSE("GPL"); - -module_init(i2c_stub_init); -module_exit(i2c_stub_exit); - diff --git a/drivers/i2c/i2c-stub.c b/drivers/i2c/i2c-stub.c new file mode 100644 index 0000000..d0a9c59 --- /dev/null +++ b/drivers/i2c/i2c-stub.c @@ -0,0 +1,220 @@ +/* + i2c-stub.c - I2C/SMBus chip emulator + + Copyright (c) 2004 Mark M. Hoffman + Copyright (C) 2007, 2012 Jean Delvare + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#define DEBUG 1 + +#include +#include +#include +#include +#include +#include + +#define MAX_CHIPS 10 +#define STUB_FUNC (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | \ + I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | \ + I2C_FUNC_SMBUS_I2C_BLOCK) + +static unsigned short chip_addr[MAX_CHIPS]; +module_param_array(chip_addr, ushort, NULL, S_IRUGO); +MODULE_PARM_DESC(chip_addr, + "Chip addresses (up to 10, between 0x03 and 0x77)"); + +static unsigned long functionality = STUB_FUNC; +module_param(functionality, ulong, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(functionality, "Override functionality bitfield"); + +struct stub_chip { + u8 pointer; + u16 words[256]; /* Byte operations use the LSB as per SMBus + specification */ +}; + +static struct stub_chip *stub_chips; + +/* Return negative errno on error. */ +static s32 stub_xfer(struct i2c_adapter *adap, u16 addr, unsigned short flags, + char read_write, u8 command, int size, union i2c_smbus_data *data) +{ + s32 ret; + int i, len; + struct stub_chip *chip = NULL; + + /* Search for the right chip */ + for (i = 0; i < MAX_CHIPS && chip_addr[i]; i++) { + if (addr == chip_addr[i]) { + chip = stub_chips + i; + break; + } + } + if (!chip) + return -ENODEV; + + switch (size) { + + case I2C_SMBUS_QUICK: + dev_dbg(&adap->dev, "smbus quick - addr 0x%02x\n", addr); + ret = 0; + break; + + case I2C_SMBUS_BYTE: + if (read_write == I2C_SMBUS_WRITE) { + chip->pointer = command; + dev_dbg(&adap->dev, + "smbus byte - addr 0x%02x, wrote 0x%02x.\n", + addr, command); + } else { + data->byte = chip->words[chip->pointer++] & 0xff; + dev_dbg(&adap->dev, + "smbus byte - addr 0x%02x, read 0x%02x.\n", + addr, data->byte); + } + + ret = 0; + break; + + case I2C_SMBUS_BYTE_DATA: + if (read_write == I2C_SMBUS_WRITE) { + chip->words[command] &= 0xff00; + chip->words[command] |= data->byte; + dev_dbg(&adap->dev, + "smbus byte data - addr 0x%02x, wrote 0x%02x at 0x%02x.\n", + addr, data->byte, command); + } else { + data->byte = chip->words[command] & 0xff; + dev_dbg(&adap->dev, + "smbus byte data - addr 0x%02x, read 0x%02x at 0x%02x.\n", + addr, data->byte, command); + } + chip->pointer = command + 1; + + ret = 0; + break; + + case I2C_SMBUS_WORD_DATA: + if (read_write == I2C_SMBUS_WRITE) { + chip->words[command] = data->word; + dev_dbg(&adap->dev, + "smbus word data - addr 0x%02x, wrote 0x%04x at 0x%02x.\n", + addr, data->word, command); + } else { + data->word = chip->words[command]; + dev_dbg(&adap->dev, + "smbus word data - addr 0x%02x, read 0x%04x at 0x%02x.\n", + addr, data->word, command); + } + + ret = 0; + break; + + case I2C_SMBUS_I2C_BLOCK_DATA: + len = data->block[0]; + if (read_write == I2C_SMBUS_WRITE) { + for (i = 0; i < len; i++) { + chip->words[command + i] &= 0xff00; + chip->words[command + i] |= data->block[1 + i]; + } + dev_dbg(&adap->dev, + "i2c block data - addr 0x%02x, wrote %d bytes at 0x%02x.\n", + addr, len, command); + } else { + for (i = 0; i < len; i++) { + data->block[1 + i] = + chip->words[command + i] & 0xff; + } + dev_dbg(&adap->dev, + "i2c block data - addr 0x%02x, read %d bytes at 0x%02x.\n", + addr, len, command); + } + + ret = 0; + break; + + default: + dev_dbg(&adap->dev, "Unsupported I2C/SMBus command\n"); + ret = -EOPNOTSUPP; + break; + } /* switch (size) */ + + return ret; +} + +static u32 stub_func(struct i2c_adapter *adapter) +{ + return STUB_FUNC & functionality; +} + +static const struct i2c_algorithm smbus_algorithm = { + .functionality = stub_func, + .smbus_xfer = stub_xfer, +}; + +static struct i2c_adapter stub_adapter = { + .owner = THIS_MODULE, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, + .algo = &smbus_algorithm, + .name = "SMBus stub driver", +}; + +static int __init i2c_stub_init(void) +{ + int i, ret; + + if (!chip_addr[0]) { + pr_err("i2c-stub: Please specify a chip address\n"); + return -ENODEV; + } + + for (i = 0; i < MAX_CHIPS && chip_addr[i]; i++) { + if (chip_addr[i] < 0x03 || chip_addr[i] > 0x77) { + pr_err("i2c-stub: Invalid chip address 0x%02x\n", + chip_addr[i]); + return -EINVAL; + } + + pr_info("i2c-stub: Virtual chip at 0x%02x\n", chip_addr[i]); + } + + /* Allocate memory for all chips at once */ + stub_chips = kzalloc(i * sizeof(struct stub_chip), GFP_KERNEL); + if (!stub_chips) { + pr_err("i2c-stub: Out of memory\n"); + return -ENOMEM; + } + + ret = i2c_add_adapter(&stub_adapter); + if (ret) + kfree(stub_chips); + return ret; +} + +static void __exit i2c_stub_exit(void) +{ + i2c_del_adapter(&stub_adapter); + kfree(stub_chips); +} + +MODULE_AUTHOR("Mark M. Hoffman "); +MODULE_DESCRIPTION("I2C stub driver"); +MODULE_LICENSE("GPL"); + +module_init(i2c_stub_init); +module_exit(i2c_stub_exit); -- cgit v0.10.2 From 79e3e5b894926d3c7b1efc69e0c5be723ceb88bd Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 28 Oct 2012 21:37:01 +0100 Subject: i2c-i801: Simplify dependency towards GPIOLIB Arbitrarily selecting GPIOLIB causes trouble on some architectures, so don't do that. Instead, just make the optional multiplexing code depend on CONFIG_I2C_MUX_GPIO instead of CONFIG_I2C_MUX for now. We can revisit if the i2c-i801 driver ever supports other multiplexing flavors. Also make that optional code depend on DMI, as it won't do anything without that. Signed-off-by: Jean Delvare Cc: Fengguang Wu diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 65dd599..e9df461 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -81,7 +81,6 @@ config I2C_I801 tristate "Intel 82801 (ICH/PCH)" depends on PCI select CHECK_SIGNATURE if X86 && DMI - select GPIOLIB if I2C_MUX help If you say yes to this option, support will be included for the Intel 801 family of mainboard I2C interfaces. Specifically, the following diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 3779315..3bc3f73 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -82,7 +82,8 @@ #include #include -#if defined CONFIG_I2C_MUX || defined CONFIG_I2C_MUX_MODULE +#if (defined CONFIG_I2C_MUX_GPIO || defined CONFIG_I2C_MUX_GPIO_MODULE) && \ + defined CONFIG_DMI #include #include #include @@ -192,7 +193,8 @@ struct i801_priv { int len; u8 *data; -#if defined CONFIG_I2C_MUX || defined CONFIG_I2C_MUX_MODULE +#if (defined CONFIG_I2C_MUX_GPIO || defined CONFIG_I2C_MUX_GPIO_MODULE) && \ + defined CONFIG_DMI const struct i801_mux_config *mux_drvdata; struct platform_device *mux_pdev; #endif @@ -921,7 +923,8 @@ static void __init input_apanel_init(void) {} static void __devinit i801_probe_optional_slaves(struct i801_priv *priv) {} #endif /* CONFIG_X86 && CONFIG_DMI */ -#if defined CONFIG_I2C_MUX || defined CONFIG_I2C_MUX_MODULE +#if (defined CONFIG_I2C_MUX_GPIO || defined CONFIG_I2C_MUX_GPIO_MODULE) && \ + defined CONFIG_DMI static struct i801_mux_config i801_mux_config_asus_z8_d12 = { .gpio_chip = "gpio_ich", .values = { 0x02, 0x03 }, -- cgit v0.10.2 From 28901f579486a69cfdf7f294a3b5a97b173fb74a Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 28 Oct 2012 21:37:01 +0100 Subject: i2c-i801: Fix comment Signed-off-by: Jean Delvare diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 3bc3f73..6abc00d 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -1062,7 +1062,7 @@ static unsigned int __devinit i801_get_adapter_class(struct i801_priv *priv) id = dmi_first_match(mux_dmi_table); if (id) { - /* Remove from branch classes from trunk */ + /* Remove branch classes from trunk */ mux_config = id->driver_data; for (i = 0; i < mux_config->n_values; i++) class &= ~mux_config->classes[i]; -- cgit v0.10.2 From 38fe36a248ec3228f8e6507955d7ceb0432d2000 Mon Sep 17 00:00:00 2001 From: Ulrich Weber Date: Thu, 25 Oct 2012 05:34:45 +0000 Subject: netfilter: nf_nat: don't check for port change on ICMP tuples ICMP tuples have id in src and type/code in dst. So comparing src.u.all with dst.u.all will always fail here and ip_xfrm_me_harder() is called for every ICMP packet, even if there was no NAT. Signed-off-by: Ulrich Weber Signed-off-by: Pablo Neira Ayuso diff --git a/net/ipv4/netfilter/iptable_nat.c b/net/ipv4/netfilter/iptable_nat.c index 9e0ffaf..a820472 100644 --- a/net/ipv4/netfilter/iptable_nat.c +++ b/net/ipv4/netfilter/iptable_nat.c @@ -184,7 +184,8 @@ nf_nat_ipv4_out(unsigned int hooknum, if ((ct->tuplehash[dir].tuple.src.u3.ip != ct->tuplehash[!dir].tuple.dst.u3.ip) || - (ct->tuplehash[dir].tuple.src.u.all != + (ct->tuplehash[dir].tuple.dst.protonum != IPPROTO_ICMP && + ct->tuplehash[dir].tuple.src.u.all != ct->tuplehash[!dir].tuple.dst.u.all)) if (nf_xfrm_me_harder(skb, AF_INET) < 0) ret = NF_DROP; @@ -221,6 +222,7 @@ nf_nat_ipv4_local_fn(unsigned int hooknum, } #ifdef CONFIG_XFRM else if (!(IPCB(skb)->flags & IPSKB_XFRM_TRANSFORMED) && + ct->tuplehash[dir].tuple.dst.protonum != IPPROTO_ICMP && ct->tuplehash[dir].tuple.dst.u.all != ct->tuplehash[!dir].tuple.src.u.all) if (nf_xfrm_me_harder(skb, AF_INET) < 0) diff --git a/net/ipv6/netfilter/ip6table_nat.c b/net/ipv6/netfilter/ip6table_nat.c index e418bd6..d57dab1 100644 --- a/net/ipv6/netfilter/ip6table_nat.c +++ b/net/ipv6/netfilter/ip6table_nat.c @@ -186,7 +186,8 @@ nf_nat_ipv6_out(unsigned int hooknum, if (!nf_inet_addr_cmp(&ct->tuplehash[dir].tuple.src.u3, &ct->tuplehash[!dir].tuple.dst.u3) || - (ct->tuplehash[dir].tuple.src.u.all != + (ct->tuplehash[dir].tuple.dst.protonum != IPPROTO_ICMPV6 && + ct->tuplehash[dir].tuple.src.u.all != ct->tuplehash[!dir].tuple.dst.u.all)) if (nf_xfrm_me_harder(skb, AF_INET6) < 0) ret = NF_DROP; @@ -222,6 +223,7 @@ nf_nat_ipv6_local_fn(unsigned int hooknum, } #ifdef CONFIG_XFRM else if (!(IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) && + ct->tuplehash[dir].tuple.dst.protonum != IPPROTO_ICMPV6 && ct->tuplehash[dir].tuple.dst.u.all != ct->tuplehash[!dir].tuple.src.u.all) if (nf_xfrm_me_harder(skb, AF_INET6)) -- cgit v0.10.2 From f1df1374dc83d62588667e566e959df384718ad1 Mon Sep 17 00:00:00 2001 From: Hein Tibosch Date: Fri, 26 Oct 2012 23:49:26 +0000 Subject: netfilter: nf_defrag_ipv6: solve section mismatch in nf_conntrack_reasm WARNING: net/ipv6/netfilter/nf_defrag_ipv6.o(.text+0xe0): Section mismatch in reference from the function nf_ct_net_init() to the function .init.text:nf_ct_frag6_sysctl_register() The function nf_ct_net_init() references the function __init nf_ct_frag6_sysctl_register(). In case nf_conntrack_ipv6 is compiled as a module, nf_ct_net_init could be called after the init code and data are unloaded. Therefore remove the "__net_init" annotation from nf_ct_frag6_sysctl_register(). Signed-off-by: Hein Tibosch Acked-by: Cong Wang Signed-off-by: Pablo Neira Ayuso diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index 18bd9bb..22c8ea9 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -85,7 +85,7 @@ static struct ctl_table nf_ct_frag6_sysctl_table[] = { { } }; -static int __net_init nf_ct_frag6_sysctl_register(struct net *net) +static int nf_ct_frag6_sysctl_register(struct net *net) { struct ctl_table *table; struct ctl_table_header *hdr; @@ -127,7 +127,7 @@ static void __net_exit nf_ct_frags6_sysctl_unregister(struct net *net) } #else -static int __net_init nf_ct_frag6_sysctl_register(struct net *net) +static int nf_ct_frag6_sysctl_register(struct net *net) { return 0; } -- cgit v0.10.2 From ffb5387e85d528fb6d0d924abfa3fbf0fc484071 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Sun, 28 Oct 2012 22:24:57 -0400 Subject: ext4: fix unjournaled inode bitmap modification commit 119c0d4460b001e44b41dcf73dc6ee794b98bd31 changed ext4_new_inode() such that the inode bitmap was being modified outside a transaction, which could lead to corruption, and was discovered when journal_checksum found a bad checksum in the journal during log replay. Nix ran into this when using the journal_async_commit mount option, which enables journal checksumming. The ensuing journal replay failures due to the bad checksums led to filesystem corruption reported as the now infamous "Apparent serious progressive ext4 data corruption bug" [ Changed by tytso to only call ext4_journal_get_write_access() only when we're fairly certain that we're going to allocate the inode. ] I've tested this by mounting with journal_checksum and running fsstress then dropping power; I've also tested by hacking DM to create snapshots w/o first quiescing, which allows me to test journal replay repeatedly w/o actually power-cycling the box. Without the patch I hit a journal checksum error every time. With this fix it survives many iterations. Reported-by: Nix Signed-off-by: Eric Sandeen Signed-off-by: "Theodore Ts'o" Cc: stable@vger.kernel.org diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 4facdd2..3a100e7 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -725,6 +725,10 @@ repeat_in_this_group: "inode=%lu", ino + 1); continue; } + BUFFER_TRACE(inode_bitmap_bh, "get_write_access"); + err = ext4_journal_get_write_access(handle, inode_bitmap_bh); + if (err) + goto fail; ext4_lock_group(sb, group); ret2 = ext4_test_and_set_bit(ino, inode_bitmap_bh->b_data); ext4_unlock_group(sb, group); @@ -738,6 +742,11 @@ repeat_in_this_group: goto out; got: + BUFFER_TRACE(inode_bitmap_bh, "call ext4_handle_dirty_metadata"); + err = ext4_handle_dirty_metadata(handle, NULL, inode_bitmap_bh); + if (err) + goto fail; + /* We may have to initialize the block bitmap if it isn't already */ if (ext4_has_group_desc_csum(sb) && gdp->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) { @@ -771,11 +780,6 @@ got: goto fail; } - BUFFER_TRACE(inode_bitmap_bh, "get_write_access"); - err = ext4_journal_get_write_access(handle, inode_bitmap_bh); - if (err) - goto fail; - BUFFER_TRACE(group_desc_bh, "get_write_access"); err = ext4_journal_get_write_access(handle, group_desc_bh); if (err) @@ -823,11 +827,6 @@ got: } ext4_unlock_group(sb, group); - BUFFER_TRACE(inode_bitmap_bh, "call ext4_handle_dirty_metadata"); - err = ext4_handle_dirty_metadata(handle, NULL, inode_bitmap_bh); - if (err) - goto fail; - BUFFER_TRACE(group_desc_bh, "call ext4_handle_dirty_metadata"); err = ext4_handle_dirty_metadata(handle, NULL, group_desc_bh); if (err) -- cgit v0.10.2 From 6a4dae5e138a32b45ca5218cc2b81802f9d378c3 Mon Sep 17 00:00:00 2001 From: Felipe Balbi 2 Date: Tue, 23 Oct 2012 19:00:03 +0100 Subject: ARM: 7565/1: sched: stop sched_clock() during suspend The scheduler imposes a requirement to sched_clock() which is to stop the clock during suspend, if we don't do that any RT thread will be rescheduled in the future which might cause any sort of problems. This became an issue on OMAP when we converted omap-i2c.c to use threaded IRQs, it turned out that depending on how much time we spent on suspend, the I2C IRQ thread would end up being rescheduled so far in the future that I2C transfers would timeout and, because omap_hsmmc depends on an I2C-connected device to detect if an MMC card is inserted in the slot, our rootfs would just vanish. arch/arm/kernel/sched_clock.c already had an optional implementation (sched_clock_needs_suspend()) which would handle scheduler's requirement properly, what this patch does is simply to make that implementation non-optional. Note that this has the side-effect that printk timings won't reflect the actual time spent on suspend so other methods to measure that will have to be used. This has been tested with beagleboard XM (OMAP3630) and pandaboard rev A3 (OMAP4430). Suspend to RAM is now working after this patch. Thanks to Kevin Hilman for helping out with debugging. Acked-by: Kevin Hilman Acked-by: Linus Walleij Signed-off-by: Felipe Balbi Signed-off-by: Russell King diff --git a/arch/arm/include/asm/sched_clock.h b/arch/arm/include/asm/sched_clock.h index 05b8e82..e3f7572 100644 --- a/arch/arm/include/asm/sched_clock.h +++ b/arch/arm/include/asm/sched_clock.h @@ -10,7 +10,5 @@ extern void sched_clock_postinit(void); extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate); -extern void setup_sched_clock_needs_suspend(u32 (*read)(void), int bits, - unsigned long rate); #endif diff --git a/arch/arm/kernel/sched_clock.c b/arch/arm/kernel/sched_clock.c index e21bac2..fc6692e 100644 --- a/arch/arm/kernel/sched_clock.c +++ b/arch/arm/kernel/sched_clock.c @@ -107,13 +107,6 @@ static void sched_clock_poll(unsigned long wrap_ticks) update_sched_clock(); } -void __init setup_sched_clock_needs_suspend(u32 (*read)(void), int bits, - unsigned long rate) -{ - setup_sched_clock(read, bits, rate); - cd.needs_suspend = true; -} - void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate) { unsigned long r, w; @@ -189,18 +182,15 @@ void __init sched_clock_postinit(void) static int sched_clock_suspend(void) { sched_clock_poll(sched_clock_timer.data); - if (cd.needs_suspend) - cd.suspended = true; + cd.suspended = true; return 0; } static void sched_clock_resume(void) { - if (cd.needs_suspend) { - cd.epoch_cyc = read_sched_clock(); - cd.epoch_cyc_copy = cd.epoch_cyc; - cd.suspended = false; - } + cd.epoch_cyc = read_sched_clock(); + cd.epoch_cyc_copy = cd.epoch_cyc; + cd.suspended = false; } static struct syscore_ops sched_clock_ops = { -- cgit v0.10.2 From 39141ddfb63a664f26d3f42f64ee386e879b492c Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Tue, 23 Oct 2012 20:32:59 +0100 Subject: ARM: 7566/1: vfp: fix save and restore when running on pre-VFPv3 and CONFIG_VFPv3 set MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit After commit 846a136881b8f73c1f74250bf6acfaa309cab1f2 ("ARM: vfp: fix saving d16-d31 vfp registers on v6+ kernels"), the OMAP 2430SDP board started crashing during boot with omap2plus_defconfig: [ 3.875122] mmcblk0: mmc0:e624 SD04G 3.69 GiB [ 3.915954] mmcblk0: p1 [ 4.086639] Internal error: Oops - undefined instruction: 0 [#1] SMP ARM [ 4.093719] Modules linked in: [ 4.096954] CPU: 0 Not tainted (3.6.0-02232-g759e00b #570) [ 4.103149] PC is at vfp_reload_hw+0x1c/0x44 [ 4.107666] LR is at __und_usr_fault_32+0x0/0x8 It turns out that the context save/restore fix unmasked a latent bug in commit 5aaf254409f8d58229107b59507a8235b715a960 ("ARM: 6203/1: Make VFPv3 usable on ARMv6"). When CONFIG_VFPv3 is set, but the kernel is booted on a pre-VFPv3 core, the code attempts to save and restore the d16-d31 VFP registers. These are only present on non-D16 VFPv3+, so this results in an undefined instruction exception. The code didn't crash before commit 846a136 because the save and restore code was only touching d0-d15, present on all VFP. Fix by implementing a request from Russell King to add a new HWCAP flag that affirmatively indicates the presence of the d16-d31 registers: http://marc.info/?l=linux-arm-kernel&m=135013547905283&w=2 and some feedback from Måns to clarify the name of the HWCAP flag. Signed-off-by: Paul Walmsley Cc: Tony Lindgren Cc: Catalin Marinas Cc: Dave Martin Cc: Måns Rullgård Signed-off-by: Russell King diff --git a/arch/arm/include/asm/vfpmacros.h b/arch/arm/include/asm/vfpmacros.h index 6a6f1e4..301c1db 100644 --- a/arch/arm/include/asm/vfpmacros.h +++ b/arch/arm/include/asm/vfpmacros.h @@ -27,9 +27,9 @@ #if __LINUX_ARM_ARCH__ <= 6 ldr \tmp, =elf_hwcap @ may not have MVFR regs ldr \tmp, [\tmp, #0] - tst \tmp, #HWCAP_VFPv3D16 - ldceql p11, cr0, [\base],#32*4 @ FLDMIAD \base!, {d16-d31} - addne \base, \base, #32*4 @ step over unused register space + tst \tmp, #HWCAP_VFPD32 + ldcnel p11, cr0, [\base],#32*4 @ FLDMIAD \base!, {d16-d31} + addeq \base, \base, #32*4 @ step over unused register space #else VFPFMRX \tmp, MVFR0 @ Media and VFP Feature Register 0 and \tmp, \tmp, #MVFR0_A_SIMD_MASK @ A_SIMD field @@ -51,9 +51,9 @@ #if __LINUX_ARM_ARCH__ <= 6 ldr \tmp, =elf_hwcap @ may not have MVFR regs ldr \tmp, [\tmp, #0] - tst \tmp, #HWCAP_VFPv3D16 - stceql p11, cr0, [\base],#32*4 @ FSTMIAD \base!, {d16-d31} - addne \base, \base, #32*4 @ step over unused register space + tst \tmp, #HWCAP_VFPD32 + stcnel p11, cr0, [\base],#32*4 @ FSTMIAD \base!, {d16-d31} + addeq \base, \base, #32*4 @ step over unused register space #else VFPFMRX \tmp, MVFR0 @ Media and VFP Feature Register 0 and \tmp, \tmp, #MVFR0_A_SIMD_MASK @ A_SIMD field diff --git a/arch/arm/include/uapi/asm/hwcap.h b/arch/arm/include/uapi/asm/hwcap.h index f254f65..3688fd1 100644 --- a/arch/arm/include/uapi/asm/hwcap.h +++ b/arch/arm/include/uapi/asm/hwcap.h @@ -18,11 +18,12 @@ #define HWCAP_THUMBEE (1 << 11) #define HWCAP_NEON (1 << 12) #define HWCAP_VFPv3 (1 << 13) -#define HWCAP_VFPv3D16 (1 << 14) +#define HWCAP_VFPv3D16 (1 << 14) /* also set for VFPv4-D16 */ #define HWCAP_TLS (1 << 15) #define HWCAP_VFPv4 (1 << 16) #define HWCAP_IDIVA (1 << 17) #define HWCAP_IDIVT (1 << 18) +#define HWCAP_VFPD32 (1 << 19) /* set if VFP has 32 regs (not 16) */ #define HWCAP_IDIV (HWCAP_IDIVA | HWCAP_IDIVT) diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index c834b32..3b44e0d 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -701,11 +701,14 @@ static int __init vfp_init(void) elf_hwcap |= HWCAP_VFPv3; /* - * Check for VFPv3 D16. CPUs in this configuration - * only have 16 x 64bit registers. + * Check for VFPv3 D16 and VFPv4 D16. CPUs in + * this configuration only have 16 x 64bit + * registers. */ if (((fmrx(MVFR0) & MVFR0_A_SIMD_MASK)) == 1) - elf_hwcap |= HWCAP_VFPv3D16; + elf_hwcap |= HWCAP_VFPv3D16; /* also v4-D16 */ + else + elf_hwcap |= HWCAP_VFPD32; } #endif /* -- cgit v0.10.2 From 7629a9f661f72eb383fb896e59efea1eac74e882 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 26 Oct 2012 18:42:08 +0100 Subject: ARM: 7567/1: io: avoid GCC's offsettable addressing modes for halfword accesses Using the 'o' memory constraint in inline assembly can result in GCC generating invalid immediate offsets for memory access instructions with reduced addressing capabilities (i.e. smaller than 12-bit immediate offsets): http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54983 As there is no constraint to specify the exact addressing mode we need, fallback to using 'Q' exclusively for halfword I/O accesses. This may emit an additional add instruction (using an extra register) in order to construct the address but it will always be accepted by GAS. Reported-by: Bastian Hecht Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index 35c1ed8..42f042e 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -64,7 +64,7 @@ extern void __raw_readsl(const void __iomem *addr, void *data, int longlen); static inline void __raw_writew(u16 val, volatile void __iomem *addr) { asm volatile("strh %1, %0" - : "+Qo" (*(volatile u16 __force *)addr) + : "+Q" (*(volatile u16 __force *)addr) : "r" (val)); } @@ -72,7 +72,7 @@ static inline u16 __raw_readw(const volatile void __iomem *addr) { u16 val; asm volatile("ldrh %1, %0" - : "+Qo" (*(volatile u16 __force *)addr), + : "+Q" (*(volatile u16 __force *)addr), "=r" (val)); return val; } -- cgit v0.10.2 From 52eb5a900a9863a8b77a895f770e5d825c8e02c6 Mon Sep 17 00:00:00 2001 From: David Zafman Date: Thu, 18 Oct 2012 14:01:43 -0700 Subject: ceph: fix dentry reference leak in encode_fh() Call to d_find_alias() needs a corresponding dput() This fixes http://tracker.newdream.net/issues/3271 Signed-off-by: David Zafman Reviewed-by: Sage Weil diff --git a/fs/ceph/export.c b/fs/ceph/export.c index 8e1b60e..8628870 100644 --- a/fs/ceph/export.c +++ b/fs/ceph/export.c @@ -90,6 +90,8 @@ static int ceph_encode_fh(struct inode *inode, u32 *rawfh, int *max_len, *max_len = handle_length; type = 255; } + if (dentry) + dput(dentry); return type; } -- cgit v0.10.2 From 8c6e30936a7893a85f6222084f0f26aceb81137a Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Fri, 26 Oct 2012 00:31:11 +0200 Subject: ath9k: fix stale pointers potentially causing access to free'd skbs bf->bf_next is only while buffers are chained as part of an A-MPDU in the tx queue. When a tid queue is flushed (e.g. on tearing down an aggregation session), frames can be enqueued again as normal transmission, without bf_next being cleared. This can lead to the old pointer being dereferenced again later. This patch might fix crashes and "Failed to stop TX DMA!" messages. Signed-off-by: Felix Fietkau Cc: stable@vger.kernel.org Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 378bd70..1ffca75 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -312,6 +312,7 @@ static struct ath_buf *ath_tx_get_buffer(struct ath_softc *sc) } bf = list_first_entry(&sc->tx.txbuf, struct ath_buf, list); + bf->bf_next = NULL; list_del(&bf->list); spin_unlock_bh(&sc->tx.txbuflock); @@ -1774,6 +1775,7 @@ static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq, list_add_tail(&bf->list, &bf_head); bf->bf_state.bf_type = 0; + bf->bf_next = NULL; bf->bf_lastbf = bf; ath_tx_fill_desc(sc, bf, txq, fi->framelen); ath_tx_txqaddbuf(sc, txq, &bf_head, false); -- cgit v0.10.2 From d034fbf08b6fe86271d0d0bd332edabeb5749fd6 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Mon, 29 Oct 2012 18:50:47 +0100 Subject: hwmon, fam15h_power: Change email address, MAINTAINERS entry Signed-off-by: Andreas Herrmann Signed-off-by: Guenter Roeck diff --git a/Documentation/hwmon/fam15h_power b/Documentation/hwmon/fam15h_power index a92918e..8065481 100644 --- a/Documentation/hwmon/fam15h_power +++ b/Documentation/hwmon/fam15h_power @@ -10,7 +10,7 @@ Supported chips: BIOS and Kernel Developer's Guide (BKDG) For AMD Family 15h Processors (not yet published) -Author: Andreas Herrmann +Author: Andreas Herrmann Description ----------- diff --git a/MAINTAINERS b/MAINTAINERS index 1fa9074..a4e8136 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -503,7 +503,7 @@ F: include/linux/altera_uart.h F: include/linux/altera_jtaguart.h AMD FAM15H PROCESSOR POWER MONITORING DRIVER -M: Andreas Herrmann +M: Andreas Herrmann L: lm-sensors@lm-sensors.org S: Maintained F: Documentation/hwmon/fam15h_power diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c index 68ad7d2..4f41104 100644 --- a/drivers/hwmon/fam15h_power.c +++ b/drivers/hwmon/fam15h_power.c @@ -2,7 +2,7 @@ * fam15h_power.c - AMD Family 15h processor power monitoring * * Copyright (c) 2011 Advanced Micro Devices, Inc. - * Author: Andreas Herrmann + * Author: Andreas Herrmann * * * This driver is free software; you can redistribute it and/or @@ -28,7 +28,7 @@ #include MODULE_DESCRIPTION("AMD Family 15h CPU processor power monitor"); -MODULE_AUTHOR("Andreas Herrmann "); +MODULE_AUTHOR("Andreas Herrmann "); MODULE_LICENSE("GPL"); /* D18F3 */ -- cgit v0.10.2 From 74549de1e439f59465b61b13b6b9de4eff76937f Mon Sep 17 00:00:00 2001 From: Miguel Vadillo Date: Mon, 29 Oct 2012 22:02:13 -0600 Subject: ARM: OMAP2+: clockdomain: Fix OMAP4 ISS clk domain to support only SWSUP Since CAM domain (ISS) has no module wake-up dependency with any other clock domain of the device and the dynamic dependency from L3_main_2 is always disabled, the domain needs to be in force wakeup in order to be able to access it for configure (sysconfig) it or use it. Also since there is no clock in the domain managed automatically by the hardware, there is no use to configure automatic clock domain transition. SW should keep the SW_WKUP domain transition as long as a module in the domain is required to be functional. Signed-off-by: Miguel Vadillo Signed-off-by: Benoit Cousson diff --git a/arch/arm/mach-omap2/clockdomains44xx_data.c b/arch/arm/mach-omap2/clockdomains44xx_data.c index b56d06b..95192a0 100644 --- a/arch/arm/mach-omap2/clockdomains44xx_data.c +++ b/arch/arm/mach-omap2/clockdomains44xx_data.c @@ -359,7 +359,7 @@ static struct clockdomain iss_44xx_clkdm = { .clkdm_offs = OMAP4430_CM2_CAM_CAM_CDOFFS, .wkdep_srcs = iss_wkup_sleep_deps, .sleepdep_srcs = iss_wkup_sleep_deps, - .flags = CLKDM_CAN_HWSUP_SWSUP, + .flags = CLKDM_CAN_SWSUP, }; static struct clockdomain l3_dss_44xx_clkdm = { -- cgit v0.10.2 From 613ad0e98c3596cd2524172fae2a795c3fc57e4a Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Mon, 29 Oct 2012 22:02:13 -0600 Subject: ARM: OMAP: hwmod: wait for sysreset complete after enabling hwmod When waking up from off-mode, some IP blocks are reset automatically by hardware. For this reason, software must wait until the reset has completed before attempting to access the IP block. This patch fixes for example the bug introduced by commit 6c31b2150ff96755d24e0ab6d6fea08a7bf5c44c ("mmc: omap_hsmmc: remove access to SYSCONFIG register"), in which the MMC IP block is reset during off-mode entry, but the code expects the module to be already available during the execution of context restore. This version includes a fix from Kevin Hilman for GPIO problems on the 37xx EVM - thanks Kevin. Signed-off-by: Tero Kristo Cc: Paul Walmsley Cc: Benoit Cousson Cc: Venkatraman S Tested-by: Kevin Hilman Cc: Kevin Hilman [paul@pwsan.com: moved softreset wait code into separate function; call from top of _enable_sysc() rather than the bottom; include fix from Kevin Hilman for GPIO sluggishness] Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index b969ab1..70267d2 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -422,6 +422,38 @@ static int _set_softreset(struct omap_hwmod *oh, u32 *v) } /** + * _wait_softreset_complete - wait for an OCP softreset to complete + * @oh: struct omap_hwmod * to wait on + * + * Wait until the IP block represented by @oh reports that its OCP + * softreset is complete. This can be triggered by software (see + * _ocp_softreset()) or by hardware upon returning from off-mode (one + * example is HSMMC). Waits for up to MAX_MODULE_SOFTRESET_WAIT + * microseconds. Returns the number of microseconds waited. + */ +static int _wait_softreset_complete(struct omap_hwmod *oh) +{ + struct omap_hwmod_class_sysconfig *sysc; + u32 softrst_mask; + int c = 0; + + sysc = oh->class->sysc; + + if (sysc->sysc_flags & SYSS_HAS_RESET_STATUS) + omap_test_timeout((omap_hwmod_read(oh, sysc->syss_offs) + & SYSS_RESETDONE_MASK), + MAX_MODULE_SOFTRESET_WAIT, c); + else if (sysc->sysc_flags & SYSC_HAS_RESET_STATUS) { + softrst_mask = (0x1 << sysc->sysc_fields->srst_shift); + omap_test_timeout(!(omap_hwmod_read(oh, sysc->sysc_offs) + & softrst_mask), + MAX_MODULE_SOFTRESET_WAIT, c); + } + + return c; +} + +/** * _set_dmadisable: set OCP_SYSCONFIG.DMADISABLE bit in @v * @oh: struct omap_hwmod * * @@ -1282,6 +1314,18 @@ static void _enable_sysc(struct omap_hwmod *oh) if (!oh->class->sysc) return; + /* + * Wait until reset has completed, this is needed as the IP + * block is reset automatically by hardware in some cases + * (off-mode for example), and the drivers require the + * IP to be ready when they access it + */ + if (oh->flags & HWMOD_CONTROL_OPT_CLKS_IN_RESET) + _enable_optional_clocks(oh); + _wait_softreset_complete(oh); + if (oh->flags & HWMOD_CONTROL_OPT_CLKS_IN_RESET) + _disable_optional_clocks(oh); + v = oh->_sysc_cache; sf = oh->class->sysc->sysc_flags; @@ -1804,7 +1848,7 @@ static int _am33xx_disable_module(struct omap_hwmod *oh) */ static int _ocp_softreset(struct omap_hwmod *oh) { - u32 v, softrst_mask; + u32 v; int c = 0; int ret = 0; @@ -1834,19 +1878,7 @@ static int _ocp_softreset(struct omap_hwmod *oh) if (oh->class->sysc->srst_udelay) udelay(oh->class->sysc->srst_udelay); - if (oh->class->sysc->sysc_flags & SYSS_HAS_RESET_STATUS) - omap_test_timeout((omap_hwmod_read(oh, - oh->class->sysc->syss_offs) - & SYSS_RESETDONE_MASK), - MAX_MODULE_SOFTRESET_WAIT, c); - else if (oh->class->sysc->sysc_flags & SYSC_HAS_RESET_STATUS) { - softrst_mask = (0x1 << oh->class->sysc->sysc_fields->srst_shift); - omap_test_timeout(!(omap_hwmod_read(oh, - oh->class->sysc->sysc_offs) - & softrst_mask), - MAX_MODULE_SOFTRESET_WAIT, c); - } - + c = _wait_softreset_complete(oh); if (c == MAX_MODULE_SOFTRESET_WAIT) pr_warning("omap_hwmod: %s: softreset failed (waited %d usec)\n", oh->name, MAX_MODULE_SOFTRESET_WAIT); -- cgit v0.10.2 From b216e12d062d060f2c7b1a49b4b6a6a442cae79c Mon Sep 17 00:00:00 2001 From: Jason Gerecke Date: Mon, 29 Oct 2012 23:45:30 -0700 Subject: Input: wacom - correct bad Cintiq 24HD check Signed-off-by: Fengguang Wu Signed-off-by: Jason Gerecke Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index 2c1e12b..858ad44 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -391,7 +391,7 @@ static int wacom_parse_hid(struct usb_interface *intf, features->pktlen = WACOM_PKGLEN_TPC2FG; } - if (features->type == MTSCREEN || WACOM_24HDT) + if (features->type == MTSCREEN || features->type == WACOM_24HDT) features->pktlen = WACOM_PKGLEN_MTOUCH; if (features->type == BAMBOO_PT) { -- cgit v0.10.2 From 904adede088f2a6976e417d1d5cf72c9fe686814 Mon Sep 17 00:00:00 2001 From: Vasily Khoruzhick Date: Mon, 29 Oct 2012 23:45:09 -0700 Subject: Input: pxa27x_keypad - clear pending interrupts on keypad config Bootloader can leave interrupt bit pending, and it confuses driver. Signed-off-by: Vasily Khoruzhick Acked-by: Robert Jarzmik Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c index 803ff6f..cad9d5d 100644 --- a/drivers/input/keyboard/pxa27x_keypad.c +++ b/drivers/input/keyboard/pxa27x_keypad.c @@ -368,6 +368,9 @@ static void pxa27x_keypad_config(struct pxa27x_keypad *keypad) unsigned int mask = 0, direct_key_num = 0; unsigned long kpc = 0; + /* clear pending interrupt bit */ + keypad_readl(KPC); + /* enable matrix keys with automatic scan */ if (pdata->matrix_key_rows && pdata->matrix_key_cols) { kpc |= KPC_ASACT | KPC_MIE | KPC_ME | KPC_MS_ALL; -- cgit v0.10.2 From e07577e1ddf6d2d31961df897e7ff05c0aeb8d0f Mon Sep 17 00:00:00 2001 From: Roland Stigge Date: Mon, 29 Oct 2012 22:30:56 -0700 Subject: Input: lpc32xx-keys - select INPUT_MATRIXKMAP This adds a "select" dependency of KEYBOARD_LPC32XX on INPUT_MATRIXKMAP, as the other drivers are doing in this regard. This fixes the following compile error if KEYBOARD_LPC32XX is enabled but INPUT_MATRIXKMAP is not: drivers/input/keyboard/lpc32xx-keys.c:230: undefined reference to `matrix_keypad_build_keymap' Signed-off-by: Roland Stigge Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index b4b65af..de08740 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -335,6 +335,7 @@ config KEYBOARD_LOCOMO config KEYBOARD_LPC32XX tristate "LPC32XX matrix key scanner support" depends on ARCH_LPC32XX && OF + select INPUT_MATRIXKMAP help Say Y here if you want to use NXP LPC32XX SoC key scanner interface, connected to a key matrix. -- cgit v0.10.2 From 2911758f14e36a7cd5c7367f951dcb8817552f71 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Mon, 13 Aug 2012 10:53:17 -0400 Subject: xen/blkback: Fix compile warning drivers/block/xen-blkback/xenbus.c:260:5: warning: symbol 'xenvbd_sysfs_addif' was not declared. Should it be static? drivers/block/xen-blkback/xenbus.c:284:6: warning: symbol 'xenvbd_sysfs_delif' was not declared. Should it be static? Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 4f66171..d0fed55 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -196,7 +196,7 @@ static void xen_blkif_disconnect(struct xen_blkif *blkif) } } -void xen_blkif_free(struct xen_blkif *blkif) +static void xen_blkif_free(struct xen_blkif *blkif) { if (!atomic_dec_and_test(&blkif->refcnt)) BUG(); @@ -257,7 +257,7 @@ static struct attribute_group xen_vbdstat_group = { VBD_SHOW(physical_device, "%x:%x\n", be->major, be->minor); VBD_SHOW(mode, "%s\n", be->mode); -int xenvbd_sysfs_addif(struct xenbus_device *dev) +static int xenvbd_sysfs_addif(struct xenbus_device *dev) { int error; @@ -281,7 +281,7 @@ fail1: device_remove_file(&dev->dev, &dev_attr_physical_device); return error; } -void xenvbd_sysfs_delif(struct xenbus_device *dev) +static void xenvbd_sysfs_delif(struct xenbus_device *dev) { sysfs_remove_group(&dev->dev.kobj, &xen_vbdstat_group); device_remove_file(&dev->dev, &dev_attr_mode); -- cgit v0.10.2 From b54e1f88897bcacc2cd359f48ea3b39eaf55f084 Mon Sep 17 00:00:00 2001 From: Herton Ronaldo Krzesinski Date: Mon, 27 Aug 2012 20:56:51 -0300 Subject: floppy: don't call alloc_ordered_workqueue inside the alloc_disk loop Since commit 070ad7e ("floppy: convert to delayed work and single-thread wq"), we end up calling alloc_ordered_workqueue multiple times inside the loop, which shouldn't be intended. Besides the leak, other side effect in the current code is if blk_init_queue fails, we would end up calling unregister_blkdev even if we didn't call yet register_blkdev. Just moved the allocation of floppy_wq before the loop, and adjusted the code accordingly. Cc: stable@vger.kernel.org # 3.5+ Acked-by: Vivek Goyal Reviewed-by: Ben Hutchings Signed-off-by: Herton Ronaldo Krzesinski Signed-off-by: Jiri Kosina Signed-off-by: Jens Axboe diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 17c675c..83112f0 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4137,6 +4137,10 @@ static int __init do_floppy_init(void) raw_cmd = NULL; + floppy_wq = alloc_ordered_workqueue("floppy", 0); + if (!floppy_wq) + return -ENOMEM; + for (dr = 0; dr < N_DRIVE; dr++) { disks[dr] = alloc_disk(1); if (!disks[dr]) { @@ -4144,16 +4148,10 @@ static int __init do_floppy_init(void) goto out_put_disk; } - floppy_wq = alloc_ordered_workqueue("floppy", 0); - if (!floppy_wq) { - err = -ENOMEM; - goto out_put_disk; - } - disks[dr]->queue = blk_init_queue(do_fd_request, &floppy_lock); if (!disks[dr]->queue) { err = -ENOMEM; - goto out_destroy_workq; + goto out_put_disk; } blk_queue_max_hw_sectors(disks[dr]->queue, 64); @@ -4317,8 +4315,6 @@ out_release_dma: out_unreg_region: blk_unregister_region(MKDEV(FLOPPY_MAJOR, 0), 256); platform_driver_unregister(&floppy_driver); -out_destroy_workq: - destroy_workqueue(floppy_wq); out_unreg_blkdev: unregister_blkdev(FLOPPY_MAJOR, "fd"); out_put_disk: @@ -4334,6 +4330,7 @@ out_put_disk: } put_disk(disks[dr]); } + destroy_workqueue(floppy_wq); return err; } -- cgit v0.10.2 From 238ab78469c6ab7845b43d5061cd3c92331b2452 Mon Sep 17 00:00:00 2001 From: Herton Ronaldo Krzesinski Date: Mon, 27 Aug 2012 20:56:52 -0300 Subject: floppy: do put_disk on current dr if blk_init_queue fails If blk_init_queue fails, we do not call put_disk on the current dr (dr is decremented first in the error handling loop). Cc: stable@vger.kernel.org Reviewed-by: Ben Hutchings Signed-off-by: Herton Ronaldo Krzesinski Signed-off-by: Jiri Kosina Signed-off-by: Jens Axboe diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 83112f0..9a558b6 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4150,6 +4150,7 @@ static int __init do_floppy_init(void) disks[dr]->queue = blk_init_queue(do_fd_request, &floppy_lock); if (!disks[dr]->queue) { + put_disk(disks[dr]); err = -ENOMEM; goto out_put_disk; } -- cgit v0.10.2 From d60e7ec18c3fb2cbf90969ccd42889eb2d03aef9 Mon Sep 17 00:00:00 2001 From: Herton Ronaldo Krzesinski Date: Mon, 27 Aug 2012 20:56:54 -0300 Subject: floppy: properly handle failure on add_disk loop On floppy initialization, if something failed inside the loop we call add_disk, there was no cleanup of previous iterations in the error handling. Cc: stable@vger.kernel.org Signed-off-by: Herton Ronaldo Krzesinski Signed-off-by: Jiri Kosina Signed-off-by: Jens Axboe diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 9a558b6..2c72573 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4292,7 +4292,7 @@ static int __init do_floppy_init(void) err = platform_device_register(&floppy_device[drive]); if (err) - goto out_release_dma; + goto out_remove_drives; err = device_create_file(&floppy_device[drive].dev, &dev_attr_cmos); @@ -4310,6 +4310,15 @@ static int __init do_floppy_init(void) out_unreg_platform_dev: platform_device_unregister(&floppy_device[drive]); +out_remove_drives: + while (drive--) { + if ((allowed_drive_mask & (1 << drive)) && + fdc_state[FDC(drive)].version != FDC_NONE) { + del_gendisk(disks[drive]); + device_remove_file(&floppy_device[drive].dev, &dev_attr_cmos); + platform_device_unregister(&floppy_device[drive]); + } + } out_release_dma: if (atomic_read(&usage_count)) floppy_release_irq_and_dma(); -- cgit v0.10.2 From 8d3ab4ebfd7435bc248873de47d0ca23076c4973 Mon Sep 17 00:00:00 2001 From: Herton Ronaldo Krzesinski Date: Mon, 27 Aug 2012 20:56:55 -0300 Subject: floppy: use common function to check if floppies can be registered The same checks to see if a drive can be or is registered are repeated through the code, factor out the checks in a common function and replace the repeated checks with it. Signed-off-by: Herton Ronaldo Krzesinski Signed-off-by: Jiri Kosina Signed-off-by: Jens Axboe diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 2c72573..d54b234 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4109,12 +4109,19 @@ static struct platform_driver floppy_driver = { static struct platform_device floppy_device[N_DRIVE]; +static bool floppy_available(int drive) +{ + if (!(allowed_drive_mask & (1 << drive))) + return false; + if (fdc_state[FDC(drive)].version == FDC_NONE) + return false; + return true; +} + static struct kobject *floppy_find(dev_t dev, int *part, void *data) { int drive = (*part & 3) | ((*part & 0x80) >> 5); - if (drive >= N_DRIVE || - !(allowed_drive_mask & (1 << drive)) || - fdc_state[FDC(drive)].version == FDC_NONE) + if (drive >= N_DRIVE || !floppy_available(drive)) return NULL; if (((*part >> 2) & 0x1f) >= ARRAY_SIZE(floppy_type)) return NULL; @@ -4281,9 +4288,7 @@ static int __init do_floppy_init(void) } for (drive = 0; drive < N_DRIVE; drive++) { - if (!(allowed_drive_mask & (1 << drive))) - continue; - if (fdc_state[FDC(drive)].version == FDC_NONE) + if (!floppy_available(drive)) continue; floppy_device[drive].name = floppy_device_name; @@ -4312,8 +4317,7 @@ out_unreg_platform_dev: platform_device_unregister(&floppy_device[drive]); out_remove_drives: while (drive--) { - if ((allowed_drive_mask & (1 << drive)) && - fdc_state[FDC(drive)].version != FDC_NONE) { + if (floppy_available(drive)) { del_gendisk(disks[drive]); device_remove_file(&floppy_device[drive].dev, &dev_attr_cmos); platform_device_unregister(&floppy_device[drive]); @@ -4558,8 +4562,7 @@ static void __exit floppy_module_exit(void) for (drive = 0; drive < N_DRIVE; drive++) { del_timer_sync(&motor_off_timer[drive]); - if ((allowed_drive_mask & (1 << drive)) && - fdc_state[FDC(drive)].version != FDC_NONE) { + if (floppy_available(drive)) { del_gendisk(disks[drive]); device_remove_file(&floppy_device[drive].dev, &dev_attr_cmos); platform_device_unregister(&floppy_device[drive]); -- cgit v0.10.2 From 1a4ae43e4feb570901667782678772fd31c1b125 Mon Sep 17 00:00:00 2001 From: Herton Ronaldo Krzesinski Date: Tue, 30 Oct 2012 08:36:07 +0100 Subject: floppy: remove dr, reuse drive on do_floppy_init This is a small cleanup, that also may turn error handling of unitialized disks more readable. We don't need a separate variable to track allocated disks, remove dr and reuse drive variable instead. Signed-off-by: Herton Ronaldo Krzesinski Signed-off-by: Jiri Kosina Signed-off-by: Jens Axboe diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index d54b234..1c49d71 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4131,8 +4131,7 @@ static struct kobject *floppy_find(dev_t dev, int *part, void *data) static int __init do_floppy_init(void) { - int i, unit, drive; - int err, dr; + int i, unit, drive, err; set_debugt(); interruptjiffies = resultjiffies = jiffies; @@ -4148,29 +4147,28 @@ static int __init do_floppy_init(void) if (!floppy_wq) return -ENOMEM; - for (dr = 0; dr < N_DRIVE; dr++) { - disks[dr] = alloc_disk(1); - if (!disks[dr]) { + for (drive = 0; drive < N_DRIVE; drive++) { + disks[drive] = alloc_disk(1); + if (!disks[drive]) { err = -ENOMEM; goto out_put_disk; } - disks[dr]->queue = blk_init_queue(do_fd_request, &floppy_lock); - if (!disks[dr]->queue) { - put_disk(disks[dr]); + disks[drive]->queue = blk_init_queue(do_fd_request, &floppy_lock); + if (!disks[drive]->queue) { err = -ENOMEM; goto out_put_disk; } - blk_queue_max_hw_sectors(disks[dr]->queue, 64); - disks[dr]->major = FLOPPY_MAJOR; - disks[dr]->first_minor = TOMINOR(dr); - disks[dr]->fops = &floppy_fops; - sprintf(disks[dr]->disk_name, "fd%d", dr); + blk_queue_max_hw_sectors(disks[drive]->queue, 64); + disks[drive]->major = FLOPPY_MAJOR; + disks[drive]->first_minor = TOMINOR(drive); + disks[drive]->fops = &floppy_fops; + sprintf(disks[drive]->disk_name, "fd%d", drive); - init_timer(&motor_off_timer[dr]); - motor_off_timer[dr].data = dr; - motor_off_timer[dr].function = motor_off_callback; + init_timer(&motor_off_timer[drive]); + motor_off_timer[drive].data = drive; + motor_off_timer[drive].function = motor_off_callback; } err = register_blkdev(FLOPPY_MAJOR, "fd"); @@ -4332,17 +4330,15 @@ out_unreg_region: out_unreg_blkdev: unregister_blkdev(FLOPPY_MAJOR, "fd"); out_put_disk: - while (dr--) { - del_timer_sync(&motor_off_timer[dr]); - if (disks[dr]->queue) { - blk_cleanup_queue(disks[dr]->queue); - /* - * put_disk() is not paired with add_disk() and - * will put queue reference one extra time. fix it. - */ - disks[dr]->queue = NULL; + for (drive = 0; drive < N_DRIVE; drive++) { + if (!disks[drive]) + break; + if (disks[drive]->queue) { + del_timer_sync(&motor_off_timer[drive]); + blk_cleanup_queue(disks[drive]->queue); + disks[drive]->queue = NULL; } - put_disk(disks[dr]); + put_disk(disks[drive]); } destroy_workqueue(floppy_wq); return err; -- cgit v0.10.2 From dbd4713348b6b7e4ce707060d1b92a457ab2e5fb Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Tue, 4 Sep 2012 11:07:38 +0200 Subject: pktcdvd: update MAINTAINERS Peter is not going to maintain the driver any more. I have the hardware. Acked-by: Peter Osterlund Signed-off-by: Jiri Kosina diff --git a/MAINTAINERS b/MAINTAINERS index 027ec2b..17f2e1c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5633,7 +5633,7 @@ S: Maintained F: drivers/pinctrl/spear/ PKTCDVD DRIVER -M: Peter Osterlund +M: Jiri Kosina S: Maintained F: drivers/block/pktcdvd.c F: include/linux/pktcdvd.h -- cgit v0.10.2 From 654dbef2146d6bc56886495d44b661148f016e62 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 27 Aug 2012 12:28:57 +0800 Subject: xen/blkback: use kmem_cache_zalloc instead of kmem_cache_alloc/memset Using kmem_cache_zalloc() instead of kmem_cache_alloc() and memset(). spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index d0fed55..f58434c 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -105,11 +105,10 @@ static struct xen_blkif *xen_blkif_alloc(domid_t domid) { struct xen_blkif *blkif; - blkif = kmem_cache_alloc(xen_blkif_cachep, GFP_KERNEL); + blkif = kmem_cache_zalloc(xen_blkif_cachep, GFP_KERNEL); if (!blkif) return ERR_PTR(-ENOMEM); - memset(blkif, 0, sizeof(*blkif)); blkif->domid = domid; spin_lock_init(&blkif->blk_ring_lock); atomic_set(&blkif->refcnt, 1); -- cgit v0.10.2 From 2541aa799ff711fdd85dfbced58ea815a5968674 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Sun, 9 Sep 2012 12:40:50 +0200 Subject: cciss: remove unneeded memset() The memory return by kzalloc() or kmem_cache_zalloc() has already be set to zero, so remove useless memset(0). spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun Cc: Mike Miller Cc: Jens Axboe Cc: Stephen M. Cameron Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index b0f553b..ca83f96 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -5205,7 +5205,6 @@ static void cciss_shutdown(struct pci_dev *pdev) return; } /* write all data in the battery backed cache to disk */ - memset(flush_buf, 0, 4); return_code = sendcmd_withirq(h, CCISS_CACHE_FLUSH, flush_buf, 4, 0, CTLR_LUNID, TYPE_CMD); kfree(flush_buf); -- cgit v0.10.2 From b7010ede4342d3ab9f9a0c51c1aa50139aacadaf Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Sun, 9 Sep 2012 12:47:47 +0200 Subject: cciss: select CONFIG_CHECK_SIGNATURE The patch cciss-use-check_signature.patch in -mm tree introduced a build error: drivers/built-in.o: In function `CISS_signature_present': drivers/block/cciss.c:4270: undefined reference to `check_signature' Add missing CONFIG_CHECK_SIGNATURE to fix this issue. Reported-by: Fengguang Wu Signed-off-by: Akinobu Mita Cc: Fengguang Wu Cc: Mike Miller Cc: Jens Axboe Acked-by: "Stephen M. Cameron" Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index 6983a65..824e09c 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -131,6 +131,7 @@ config BLK_CPQ_DA config BLK_CPQ_CISS_DA tristate "Compaq Smart Array 5xxx support" depends on PCI + select CHECK_SIGNATURE help This is the driver for Compaq Smart Array 5xxx controllers. Everyone using these boards should say Y here. -- cgit v0.10.2 From 1f999572f244f266c5b1b855025723541b0b475d Mon Sep 17 00:00:00 2001 From: Oliver Chick Date: Fri, 21 Sep 2012 10:04:18 +0100 Subject: xen/blkback: Change xen_vbd's flush_support and discard_secure to have type unsigned int, rather than bool Changing the type of bdev parameters to be unsigned int :1, rather than bool. This is more consistent with the types of other features in the block drivers. Signed-off-by: Oliver Chick Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Jens Axboe diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index 9ad3b5e..9a54623 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -158,8 +158,8 @@ struct xen_vbd { struct block_device *bdev; /* Cached size parameter. */ sector_t size; - bool flush_support; - bool discard_secure; + unsigned int flush_support:1; + unsigned int discard_secure:1; }; struct backend_info; -- cgit v0.10.2 From 4453bc88f0f7be6d84b50b2e1c1ed239c45fb14a Mon Sep 17 00:00:00 2001 From: Selvan Mani Date: Thu, 27 Sep 2012 14:36:43 +0200 Subject: mtip32xx:Added appropriate timeout value for secure erase Added appropriate timeout value for secure erase based on identify device data Signed-off-by: Asai Thambi S P Signed-off-by: Selvan Mani Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index f946d31..adc6f36 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -2035,8 +2035,9 @@ static unsigned int implicit_sector(unsigned char command, } return rv; } - -static void mtip_set_timeout(struct host_to_dev_fis *fis, unsigned int *timeout) +static void mtip_set_timeout(struct driver_data *dd, + struct host_to_dev_fis *fis, + unsigned int *timeout, u8 erasemode) { switch (fis->command) { case ATA_CMD_DOWNLOAD_MICRO: @@ -2044,7 +2045,10 @@ static void mtip_set_timeout(struct host_to_dev_fis *fis, unsigned int *timeout) break; case ATA_CMD_SEC_ERASE_UNIT: case 0xFC: - *timeout = 240000; /* 4 minutes */ + if (erasemode) + *timeout = ((*(dd->port->identify + 90) * 2) * 60000); + else + *timeout = ((*(dd->port->identify + 89) * 2) * 60000); break; case ATA_CMD_STANDBYNOW1: *timeout = 120000; /* 2 minutes */ @@ -2087,6 +2091,7 @@ static int exec_drive_taskfile(struct driver_data *dd, unsigned int transfer_size; unsigned long task_file_data; int intotal = outtotal + req_task->out_size; + int erasemode = 0; taskout = req_task->out_size; taskin = req_task->in_size; @@ -2212,7 +2217,13 @@ static int exec_drive_taskfile(struct driver_data *dd, fis.lba_hi, fis.device); - mtip_set_timeout(&fis, &timeout); + /* check for erase mode support during secure erase.*/ + if ((fis.command == ATA_CMD_SEC_ERASE_UNIT) + && (outbuf[0] & MTIP_SEC_ERASE_MODE)) { + erasemode = 1; + } + + mtip_set_timeout(dd, &fis, &timeout, erasemode); /* Determine the correct transfer size.*/ if (force_single_sector) diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h index 18627a1..5f4a917 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -33,6 +33,9 @@ /* offset of Device Control register in PCIe extended capabilites space */ #define PCIE_CONFIG_EXT_DEVICE_CONTROL_OFFSET 0x48 +/* check for erase mode support during secure erase */ +#define MTIP_SEC_ERASE_MODE 0x3 + /* # of times to retry timed out/failed IOs */ #define MTIP_MAX_RETRIES 2 -- cgit v0.10.2 From a1ecac3b0656a68259927c234e505804d33a7b83 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Fri, 28 Sep 2012 10:42:23 +0200 Subject: loop: Make explicit loop device destruction lazy xfstests has always had random failures of tests due to loop devices failing to be torn down and hence leaving filesytems that cannot be unmounted. This causes test runs to immediately stop. Over the past 6 or 7 years we've added hacks like explicit unmount -d commands for loop mounts, losetup -d after unmount -d fails, etc, but still the problems persist. Recently, the frequency of loop related failures increased again to the point that xfstests 259 will reliably fail with a stray loop device that was not torn down. That is despite the fact the test is above as simple as it gets - loop 5 or 6 times running mkfs.xfs with different paramters: lofile=$(losetup -f) losetup $lofile "$testfile" "$MKFS_XFS_PROG" -b size=512 $lofile >/dev/null || echo "mkfs failed!" sync losetup -d $lofile And losteup -d $lofile is failing with EBUSY on 1-3 of these loops every time the test is run. Turns out that blkid is running simultaneously with losetup -d, and so it sees an elevated reference count and returns EBUSY. But why is blkid running? It's obvious, isn't it? udev has decided to try and find out what is on the block device as a result of a creation notification. And it is racing with mkfs, so might still be scanning the device when mkfs finishes and we try to tear it down. So, make losetup -d force autoremove behaviour. That is, when the last reference goes away, tear down the device. xfstests wants it *gone*, not causing random teardown failures when we know that all the operations the tests have specifically run on the device have completed and are no longer referencing the loop device. Signed-off-by: Dave Chinner Signed-off-by: Jens Axboe diff --git a/drivers/block/loop.c b/drivers/block/loop.c index e9d594f..54046e5 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -976,8 +976,21 @@ static int loop_clr_fd(struct loop_device *lo) if (lo->lo_state != Lo_bound) return -ENXIO; - if (lo->lo_refcnt > 1) /* we needed one fd for the ioctl */ - return -EBUSY; + /* + * If we've explicitly asked to tear down the loop device, + * and it has an elevated reference count, set it for auto-teardown when + * the last reference goes away. This stops $!~#$@ udev from + * preventing teardown because it decided that it needs to run blkid on + * the loopback device whenever they appear. xfstests is notorious for + * failing tests because blkid via udev races with a losetup + * /do something like mkfs/losetup -d causing the losetup -d + * command to fail with EBUSY. + */ + if (lo->lo_refcnt > 1) { + lo->lo_flags |= LO_FLAGS_AUTOCLEAR; + mutex_unlock(&lo->lo_ctl_mutex); + return 0; + } if (filp == NULL) return -EINVAL; -- cgit v0.10.2 From e6d41e8c697e07832efa4a85bf23438bc4c4e1b2 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Mon, 29 Oct 2012 18:40:08 +0100 Subject: x86, AMD: Change Boris' email address Move to private email and put in maintained status. Signed-off-by: Borislav Petkov Link: http://lkml.kernel.org/r/1351532410-4887-1-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c index 698b6ec..1ac581f 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_amd.c +++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c @@ -6,7 +6,7 @@ * * Written by Jacob Shin - AMD, Inc. * - * Support: borislav.petkov@amd.com + * Maintained by: Borislav Petkov * * April 2006 * - added support for AMD Family 0x10 processors -- cgit v0.10.2 From 43aff26ce1684dae4bf75437b2733371106aa767 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Mon, 29 Oct 2012 18:40:09 +0100 Subject: EDAC: Change Boris' email address My @amd.com address will be invalid soon so move to private email address. Signed-off-by: Borislav Petkov Link: http://lkml.kernel.org/r/1351532410-4887-2-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h index 8d48047..8c41396 100644 --- a/drivers/edac/amd64_edac.h +++ b/drivers/edac/amd64_edac.h @@ -33,7 +33,7 @@ * detection. The mods to Rev F required more family * information detection. * - * Changes/Fixes by Borislav Petkov : + * Changes/Fixes by Borislav Petkov : * - misc fixes and code cleanups * * This module is based on the following documents diff --git a/drivers/edac/edac_stub.c b/drivers/edac/edac_stub.c index 6c86f6e..351945f 100644 --- a/drivers/edac/edac_stub.c +++ b/drivers/edac/edac_stub.c @@ -5,7 +5,7 @@ * * 2007 (c) MontaVista Software, Inc. * 2010 (c) Advanced Micro Devices Inc. - * Borislav Petkov + * Borislav Petkov * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/edac/mce_amd_inj.c b/drivers/edac/mce_amd_inj.c index 66b5151..2ae78f2 100644 --- a/drivers/edac/mce_amd_inj.c +++ b/drivers/edac/mce_amd_inj.c @@ -6,7 +6,7 @@ * This file may be distributed under the terms of the GNU General Public * License version 2. * - * Copyright (c) 2010: Borislav Petkov + * Copyright (c) 2010: Borislav Petkov * Advanced Micro Devices Inc. */ @@ -168,6 +168,6 @@ module_init(edac_init_mce_inject); module_exit(edac_exit_mce_inject); MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Borislav Petkov "); +MODULE_AUTHOR("Borislav Petkov "); MODULE_AUTHOR("AMD Inc."); MODULE_DESCRIPTION("MCE injection facility for testing MCE decoding"); -- cgit v0.10.2 From 487ba8e82ab98320e5d7c0f6ff6da3067505ff92 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Mon, 29 Oct 2012 18:40:10 +0100 Subject: MAINTAINERS: Change Boris' email address Move to private mail address. Signed-off-by: Borislav Petkov Link: http://lkml.kernel.org/r/1351532410-4887-3-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar diff --git a/MAINTAINERS b/MAINTAINERS index 1fa9074..e775b87 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2707,10 +2707,10 @@ F: include/linux/edac.h EDAC-AMD64 M: Doug Thompson -M: Borislav Petkov +M: Borislav Petkov L: linux-edac@vger.kernel.org W: bluesmoke.sourceforge.net -S: Supported +S: Maintained F: drivers/edac/amd64_edac* EDAC-E752X @@ -3703,7 +3703,7 @@ S: Maintained F: drivers/platform/x86/ideapad-laptop.c IDE/ATAPI DRIVERS -M: Borislav Petkov +M: Borislav Petkov L: linux-ide@vger.kernel.org S: Maintained F: Documentation/cdrom/ide-cd @@ -8147,7 +8147,7 @@ F: drivers/platform/x86 X86 MCE INFRASTRUCTURE M: Tony Luck -M: Borislav Petkov +M: Borislav Petkov L: linux-edac@vger.kernel.org S: Maintained F: arch/x86/kernel/cpu/mcheck/* -- cgit v0.10.2 From 943482d07e926128eed0482b879736f912c429e4 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Mon, 29 Oct 2012 18:51:38 +0100 Subject: x86, microcode_amd: Change email addresses, MAINTAINERS entry Signed-off-by: Andreas Herrmann Cc: lm-sensors@lm-sensors.org Cc: oprofile-list@lists.sf.net Cc: Stephane Eranian Cc: Robert Richter Cc: Borislav Petkov Cc: Jorg Roedel Cc: Rafael J. Wysocki Cc: Jean Delvare Cc: Guenter Roeck Link: http://lkml.kernel.org/r/20121029175138.GC5024@tweety Signed-off-by: Ingo Molnar diff --git a/MAINTAINERS b/MAINTAINERS index e775b87..1740370 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -534,9 +534,9 @@ F: drivers/iommu/amd_iommu*.[ch] F: include/linux/amd-iommu.h AMD MICROCODE UPDATE SUPPORT -M: Andreas Herrmann +M: Andreas Herrmann L: amd64-microcode@amd64.org -S: Supported +S: Maintained F: arch/x86/kernel/microcode_amd.c AMS (Apple Motion Sensor) DRIVER diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c index 7720ff5..b3e67ba 100644 --- a/arch/x86/kernel/microcode_amd.c +++ b/arch/x86/kernel/microcode_amd.c @@ -8,8 +8,8 @@ * Tigran Aivazian * * Maintainers: - * Andreas Herrmann - * Borislav Petkov + * Andreas Herrmann + * Borislav Petkov * * This driver allows to upgrade microcode on F10h AMD * CPUs and later. -- cgit v0.10.2 From 4cf7e71869268d5c9fa7e8005155aef94e140eb5 Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Mon, 29 Oct 2012 18:53:25 +0100 Subject: MAINTAINERS: Update email address for Robert Richter Signed-off-by: Robert Richter Signed-off-by: Andreas Herrmann Cc: lm-sensors@lm-sensors.org Cc: oprofile-list@lists.sf.net Cc: Stephane Eranian Cc: Borislav Petkov Cc: =?iso-8859-1?Q?J=F6rg_R=F6del?= Cc: Rafael J. Wysocki Cc: Jean Delvare Cc: Guenter Roeck Link: http://lkml.kernel.org/r/20121029175325.GE5024@tweety Signed-off-by: Ingo Molnar diff --git a/MAINTAINERS b/MAINTAINERS index 1740370..a41344b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5363,7 +5363,7 @@ S: Maintained F: sound/drivers/opl4/ OPROFILE -M: Robert Richter +M: Robert Richter L: oprofile-list@lists.sf.net S: Maintained F: arch/*/include/asm/oprofile*.h -- cgit v0.10.2 From 0d855354ea351bec6b222e9fea86a876cfafdcb6 Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Fri, 26 Oct 2012 18:28:56 +0200 Subject: perf, powerpc: Fix hw breakpoints returning -ENOSPC I've been trying to get hardware breakpoints with perf to work on POWER7 but I'm getting the following: % perf record -e mem:0x10000000 true Error: sys_perf_event_open() syscall returned with 28 (No space left on device). /bin/dmesg may provide additional information. Fatal: No CONFIG_PERF_EVENTS=y kernel support configured? true: Terminated (FWIW adding -a and it works fine) Debugging it seems that __reserve_bp_slot() is returning ENOSPC because it thinks there are no free breakpoint slots on this CPU. I have a 2 CPUs, so perf userspace is doing two perf_event_open syscalls to add a counter to each CPU [1]. The first syscall succeeds but the second is failing. On this second syscall, fetch_bp_busy_slots() sets slots.pinned to be 1, despite there being no breakpoint on this CPU. This is because the call the task_bp_pinned, checks all CPUs, rather than just the current CPU. POWER7 only has one hardware breakpoint per CPU (ie. HBP_NUM=1), so we return ENOSPC. The following patch fixes this by checking the associated CPU for each breakpoint in task_bp_pinned. I'm not familiar with this code, so it's provided as a reference to the above issue. Signed-off-by: Michael Neuling Acked-by: Peter Zijlstra Cc: Michael Ellerman Cc: Jovi Zhang Cc: K Prasad Link: http://lkml.kernel.org/r/1351268936-2956-1-git-send-email-fweisbec@gmail.com Signed-off-by: Ingo Molnar diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c index 9a7b487..fe8a916 100644 --- a/kernel/events/hw_breakpoint.c +++ b/kernel/events/hw_breakpoint.c @@ -111,14 +111,16 @@ static unsigned int max_task_bp_pinned(int cpu, enum bp_type_idx type) * Count the number of breakpoints of the same type and same task. * The given event must be not on the list. */ -static int task_bp_pinned(struct perf_event *bp, enum bp_type_idx type) +static int task_bp_pinned(int cpu, struct perf_event *bp, enum bp_type_idx type) { struct task_struct *tsk = bp->hw.bp_target; struct perf_event *iter; int count = 0; list_for_each_entry(iter, &bp_task_head, hw.bp_list) { - if (iter->hw.bp_target == tsk && find_slot_idx(iter) == type) + if (iter->hw.bp_target == tsk && + find_slot_idx(iter) == type && + cpu == iter->cpu) count += hw_breakpoint_weight(iter); } @@ -141,7 +143,7 @@ fetch_bp_busy_slots(struct bp_busy_slots *slots, struct perf_event *bp, if (!tsk) slots->pinned += max_task_bp_pinned(cpu, type); else - slots->pinned += task_bp_pinned(bp, type); + slots->pinned += task_bp_pinned(cpu, bp, type); slots->flexible = per_cpu(nr_bp_flexible[type], cpu); return; @@ -154,7 +156,7 @@ fetch_bp_busy_slots(struct bp_busy_slots *slots, struct perf_event *bp, if (!tsk) nr += max_task_bp_pinned(cpu, type); else - nr += task_bp_pinned(bp, type); + nr += task_bp_pinned(cpu, bp, type); if (nr > slots->pinned) slots->pinned = nr; @@ -188,7 +190,7 @@ static void toggle_bp_task_slot(struct perf_event *bp, int cpu, bool enable, int old_idx = 0; int idx = 0; - old_count = task_bp_pinned(bp, type); + old_count = task_bp_pinned(cpu, bp, type); old_idx = old_count - 1; idx = old_idx + weight; -- cgit v0.10.2 From f49f4ab95c301dbccad0efe85296d908b8ae7ad4 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 29 Oct 2012 14:40:18 +0100 Subject: x86/ce4100: Fix pm_poweroff The CE4100 platform is currently missing a proper pm_poweroff implementation leading to poweroff making the CPU spin forever and the CE4100 platform does not enter a low-power mode where the external Power Management Unit can properly power off the system. Power off on this platform is implemented pretty much like reboot, by writing to the SoC built-in 8051 microcontroller mapped at I/O port 0xcf9, the value 0x4. Signed-off-by: Florian Fainelli Acked-by: Sebastian Andrzej Siewior Cc: rui.zhang@intel.com Cc: alan@linux.intel.com Link: http://lkml.kernel.org/r/1351518020-25556-2-git-send-email-ffainelli@freebox.fr Signed-off-by: Ingo Molnar diff --git a/arch/x86/platform/ce4100/ce4100.c b/arch/x86/platform/ce4100/ce4100.c index 4c61b52..5de16e3 100644 --- a/arch/x86/platform/ce4100/ce4100.c +++ b/arch/x86/platform/ce4100/ce4100.c @@ -27,6 +27,18 @@ static int ce4100_i8042_detect(void) return 0; } +/* + * The CE4100 platform has an internal 8051 Microcontroller which is + * responsible for signaling to the external Power Management Unit the + * intention to reset, reboot or power off the system. This 8051 device has + * its command register mapped at I/O port 0xcf9 and the value 0x4 is used + * to power off the system. + */ +static void ce4100_power_off(void) +{ + outb(0x4, 0xcf9); +} + #ifdef CONFIG_SERIAL_8250 static unsigned int mem_serial_in(struct uart_port *p, int offset) @@ -143,4 +155,6 @@ void __init x86_ce4100_early_setup(void) x86_init.pci.init_irq = sdv_pci_init; x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc_nocheck; #endif + + pm_power_off = ce4100_power_off; } -- cgit v0.10.2 From d7959916026aaae60e1878ae33c7503b2cc4471d Mon Sep 17 00:00:00 2001 From: Maxime Bizon Date: Mon, 29 Oct 2012 14:40:19 +0100 Subject: x86/ce4100: Fix reboot by forcing the reboot method to be KBD The default reboot is via ACPI for this platform, and the CEFDK bootloader actually supports this, but will issue a system power off instead of a real reboot. Setting the reboot method to be KBD instead of ACPI ensures proper system reboot. Acked-by: Sebastian Andrzej Siewior Signed-off-by: Maxime Bizon Signed-off-by: Florian Fainelli Cc: rui.zhang@intel.com Cc: alan@linux.intel.com Link: http://lkml.kernel.org/r/1351518020-25556-3-git-send-email-ffainelli@freebox.fr Signed-off-by: Ingo Molnar diff --git a/arch/x86/platform/ce4100/ce4100.c b/arch/x86/platform/ce4100/ce4100.c index 5de16e3..92525cb 100644 --- a/arch/x86/platform/ce4100/ce4100.c +++ b/arch/x86/platform/ce4100/ce4100.c @@ -21,6 +21,7 @@ #include #include #include +#include static int ce4100_i8042_detect(void) { @@ -151,6 +152,15 @@ void __init x86_ce4100_early_setup(void) x86_init.mpparse.find_smp_config = x86_init_noop; x86_init.pci.init = ce4100_pci_init; + /* + * By default, the reboot method is ACPI which is supported by the + * CE4100 bootloader CEFDK using FADT.ResetReg Address and ResetValue + * the bootloader will however issue a system power off instead of + * reboot. By using BOOT_KBD we ensure proper system reboot as + * expected. + */ + reboot_type = BOOT_KBD; + #ifdef CONFIG_X86_IO_APIC x86_init.pci.init_irq = sdv_pci_init; x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc_nocheck; -- cgit v0.10.2 From 37aeec36220c39f1b2e7118287d951fd9cfdd6b7 Mon Sep 17 00:00:00 2001 From: Maxime Bizon Date: Mon, 29 Oct 2012 14:40:20 +0100 Subject: x86/ce4100: Fix PCI configuration register access for devices without interrupts Some CE4100 devices such as the: - DFX module (01:0b.7) - entertainment encryption device (01:10.0) - multimedia controller (01:12.0) do not have a device interrupt at all. This patch fixes the PCI controller code to declare the missing PCI configuration register space, as well as a fixup method for forcing the interrupt pin to be 0 for these devices. This is required to ensure that pci drivers matching on these devices will be able to honor the various PCI subsystem calls touching the configuration space. Signed-off-by: Maxime Bizon Signed-off-by: Florian Fainelli Acked-by: Sebastian Andrzej Siewior Cc: rui.zhang@intel.com Cc: alan@linux.intel.com Link: http://lkml.kernel.org/r/1351518020-25556-4-git-send-email-ffainelli@freebox.fr Signed-off-by: Ingo Molnar diff --git a/arch/x86/pci/ce4100.c b/arch/x86/pci/ce4100.c index 41bd2a2..b914e20 100644 --- a/arch/x86/pci/ce4100.c +++ b/arch/x86/pci/ce4100.c @@ -115,6 +115,16 @@ static void sata_revid_read(struct sim_dev_reg *reg, u32 *value) reg_read(reg, value); } +static void reg_noirq_read(struct sim_dev_reg *reg, u32 *value) +{ + unsigned long flags; + + raw_spin_lock_irqsave(&pci_config_lock, flags); + /* force interrupt pin value to 0 */ + *value = reg->sim_reg.value & 0xfff00ff; + raw_spin_unlock_irqrestore(&pci_config_lock, flags); +} + static struct sim_dev_reg bus1_fixups[] = { DEFINE_REG(2, 0, 0x10, (16*MB), reg_init, reg_read, reg_write) DEFINE_REG(2, 0, 0x14, (256), reg_init, reg_read, reg_write) @@ -144,6 +154,7 @@ static struct sim_dev_reg bus1_fixups[] = { DEFINE_REG(11, 5, 0x10, (64*KB), reg_init, reg_read, reg_write) DEFINE_REG(11, 6, 0x10, (256), reg_init, reg_read, reg_write) DEFINE_REG(11, 7, 0x10, (64*KB), reg_init, reg_read, reg_write) + DEFINE_REG(11, 7, 0x3c, 256, reg_init, reg_noirq_read, reg_write) DEFINE_REG(12, 0, 0x10, (128*KB), reg_init, reg_read, reg_write) DEFINE_REG(12, 0, 0x14, (256), reg_init, reg_read, reg_write) DEFINE_REG(12, 1, 0x10, (1024), reg_init, reg_read, reg_write) @@ -161,8 +172,10 @@ static struct sim_dev_reg bus1_fixups[] = { DEFINE_REG(16, 0, 0x10, (64*KB), reg_init, reg_read, reg_write) DEFINE_REG(16, 0, 0x14, (64*MB), reg_init, reg_read, reg_write) DEFINE_REG(16, 0, 0x18, (64*MB), reg_init, reg_read, reg_write) + DEFINE_REG(16, 0, 0x3c, 256, reg_init, reg_noirq_read, reg_write) DEFINE_REG(17, 0, 0x10, (128*KB), reg_init, reg_read, reg_write) DEFINE_REG(18, 0, 0x10, (1*KB), reg_init, reg_read, reg_write) + DEFINE_REG(18, 0, 0x3c, 256, reg_init, reg_noirq_read, reg_write) }; static void __init init_sim_regs(void) -- cgit v0.10.2 From 9b0573c07f278e9888c352aa9724035c75784ea0 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 12 Oct 2012 15:07:34 +0200 Subject: ALSA: PCM: Fix some races at disconnection Fix races at PCM disconnection: - while a PCM device is being opened or closed - while the PCM state is being changed without lock in prepare, hw_params, hw_free ops Reported-by: Matthieu CASTET Cc: Signed-off-by: Takashi Iwai diff --git a/sound/core/pcm.c b/sound/core/pcm.c index f299194..993b240 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -1086,11 +1086,15 @@ static int snd_pcm_dev_disconnect(struct snd_device *device) if (list_empty(&pcm->list)) goto unlock; + mutex_lock(&pcm->open_mutex); list_del_init(&pcm->list); for (cidx = 0; cidx < 2; cidx++) - for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) + for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) { + snd_pcm_stream_lock_irq(substream); if (substream->runtime) substream->runtime->status->state = SNDRV_PCM_STATE_DISCONNECTED; + snd_pcm_stream_unlock_irq(substream); + } list_for_each_entry(notify, &snd_pcm_notify_list, list) { notify->n_disconnect(pcm); } @@ -1110,6 +1114,7 @@ static int snd_pcm_dev_disconnect(struct snd_device *device) pcm->streams[cidx].chmap_kctl = NULL; } } + mutex_unlock(&pcm->open_mutex); unlock: mutex_unlock(®ister_mutex); return 0; diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 5e12e5b..8753c89 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -369,6 +369,14 @@ static int period_to_usecs(struct snd_pcm_runtime *runtime) return usecs; } +static void snd_pcm_set_state(struct snd_pcm_substream *substream, int state) +{ + snd_pcm_stream_lock_irq(substream); + if (substream->runtime->status->state != SNDRV_PCM_STATE_DISCONNECTED) + substream->runtime->status->state = state; + snd_pcm_stream_unlock_irq(substream); +} + static int snd_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { @@ -452,7 +460,7 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream, runtime->boundary *= 2; snd_pcm_timer_resolution_change(substream); - runtime->status->state = SNDRV_PCM_STATE_SETUP; + snd_pcm_set_state(substream, SNDRV_PCM_STATE_SETUP); if (pm_qos_request_active(&substream->latency_pm_qos_req)) pm_qos_remove_request(&substream->latency_pm_qos_req); @@ -464,7 +472,7 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream, /* hardware might be unusable from this time, so we force application to retry to set the correct hardware parameter settings */ - runtime->status->state = SNDRV_PCM_STATE_OPEN; + snd_pcm_set_state(substream, SNDRV_PCM_STATE_OPEN); if (substream->ops->hw_free != NULL) substream->ops->hw_free(substream); return err; @@ -512,7 +520,7 @@ static int snd_pcm_hw_free(struct snd_pcm_substream *substream) return -EBADFD; if (substream->ops->hw_free) result = substream->ops->hw_free(substream); - runtime->status->state = SNDRV_PCM_STATE_OPEN; + snd_pcm_set_state(substream, SNDRV_PCM_STATE_OPEN); pm_qos_remove_request(&substream->latency_pm_qos_req); return result; } @@ -1320,7 +1328,7 @@ static void snd_pcm_post_prepare(struct snd_pcm_substream *substream, int state) { struct snd_pcm_runtime *runtime = substream->runtime; runtime->control->appl_ptr = runtime->status->hw_ptr; - runtime->status->state = SNDRV_PCM_STATE_PREPARED; + snd_pcm_set_state(substream, SNDRV_PCM_STATE_PREPARED); } static struct action_ops snd_pcm_action_prepare = { -- cgit v0.10.2 From 978520b75f0a1ce82b17e1e8186417250de6d545 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 12 Oct 2012 15:12:55 +0200 Subject: ALSA: usb-audio: Fix races at disconnection Close some races at disconnection of a USB audio device by adding the chip->shutdown_mutex and chip->shutdown check at appropriate places. The spots to put bandaids are: - PCM prepare, hw_params and hw_free - where the usb device is accessed for communication or get speed, in mixer.c and others; the device speed is now cached in subs->speed instead of accessing to chip->dev The accesses in PCM open and close don't need the mutex protection because these are already handled in the core PCM disconnection code. The autosuspend/autoresume codes are still uncovered by this patch because of possible mutex deadlocks. They'll be covered by the upcoming change to rwsem. Also the mixer codes are untouched, too. These will be fixed in another patch, too. Reported-by: Matthieu CASTET Cc: Signed-off-by: Takashi Iwai diff --git a/sound/usb/card.h b/sound/usb/card.h index afa4f9e..814cb35 100644 --- a/sound/usb/card.h +++ b/sound/usb/card.h @@ -126,6 +126,7 @@ struct snd_usb_substream { struct snd_usb_endpoint *sync_endpoint; unsigned long flags; bool need_setup_ep; /* (re)configure EP at prepare? */ + unsigned int speed; /* USB_SPEED_XXX */ u64 formats; /* format bitmasks (all or'ed) */ unsigned int num_formats; /* number of supported audio formats (list) */ diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index fe56c9d..c2ef11c 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -287,25 +287,32 @@ static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int v unsigned char buf[2]; int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; int timeout = 10; - int err; + int idx = 0, err; err = snd_usb_autoresume(cval->mixer->chip); if (err < 0) return -EIO; + mutex_lock(&chip->shutdown_mutex); while (timeout-- > 0) { + if (chip->shutdown) + break; + idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), - buf, val_len) >= val_len) { + validx, idx, buf, val_len) >= val_len) { *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); - snd_usb_autosuspend(cval->mixer->chip); - return 0; + err = 0; + goto out; } } - snd_usb_autosuspend(cval->mixer->chip); snd_printdd(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", - request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type); - return -EINVAL; + request, validx, idx, cval->val_type); + err = -EINVAL; + + out: + mutex_unlock(&chip->shutdown_mutex); + snd_usb_autosuspend(cval->mixer->chip); + return err; } static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) @@ -313,7 +320,7 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int v struct snd_usb_audio *chip = cval->mixer->chip; unsigned char buf[2 + 3*sizeof(__u16)]; /* enough space for one range */ unsigned char *val; - int ret, size; + int idx = 0, ret, size; __u8 bRequest; if (request == UAC_GET_CUR) { @@ -330,16 +337,22 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int v if (ret) goto error; - ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, + mutex_lock(&chip->shutdown_mutex); + if (chip->shutdown) + ret = -ENODEV; + else { + idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); + ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), - buf, size); + validx, idx, buf, size); + } + mutex_unlock(&chip->shutdown_mutex); snd_usb_autosuspend(chip); if (ret < 0) { error: snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", - request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type); + request, validx, idx, cval->val_type); return ret; } @@ -417,7 +430,7 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, { struct snd_usb_audio *chip = cval->mixer->chip; unsigned char buf[2]; - int val_len, err, timeout = 10; + int idx = 0, val_len, err, timeout = 10; if (cval->mixer->protocol == UAC_VERSION_1) { val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; @@ -440,19 +453,27 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, err = snd_usb_autoresume(chip); if (err < 0) return -EIO; - while (timeout-- > 0) + mutex_lock(&chip->shutdown_mutex); + while (timeout-- > 0) { + if (chip->shutdown) + break; + idx = snd_usb_ctrl_intf(chip) | (cval->id << 8); if (snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0), request, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, - validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), - buf, val_len) >= 0) { - snd_usb_autosuspend(chip); - return 0; + validx, idx, buf, val_len) >= 0) { + err = 0; + goto out; } - snd_usb_autosuspend(chip); + } snd_printdd(KERN_ERR "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", - request, validx, snd_usb_ctrl_intf(chip) | (cval->id << 8), cval->val_type, buf[0], buf[1]); - return -EINVAL; + request, validx, idx, cval->val_type, buf[0], buf[1]); + err = -EINVAL; + + out: + mutex_unlock(&chip->shutdown_mutex); + snd_usb_autosuspend(chip); + return err; } static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, int validx, int value) diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 55e19e1..55e741c 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -71,6 +71,8 @@ static snd_pcm_uframes_t snd_usb_pcm_pointer(struct snd_pcm_substream *substream unsigned int hwptr_done; subs = (struct snd_usb_substream *)substream->runtime->private_data; + if (subs->stream->chip->shutdown) + return SNDRV_PCM_POS_XRUN; spin_lock(&subs->lock); hwptr_done = subs->hwptr_done; substream->runtime->delay = snd_usb_pcm_delay(subs, @@ -444,7 +446,6 @@ static int configure_endpoint(struct snd_usb_substream *subs) { int ret; - mutex_lock(&subs->stream->chip->shutdown_mutex); /* format changed */ stop_endpoints(subs, 0, 0, 0); ret = snd_usb_endpoint_set_params(subs->data_endpoint, @@ -455,7 +456,7 @@ static int configure_endpoint(struct snd_usb_substream *subs) subs->cur_audiofmt, subs->sync_endpoint); if (ret < 0) - goto unlock; + return ret; if (subs->sync_endpoint) ret = snd_usb_endpoint_set_params(subs->data_endpoint, @@ -465,9 +466,6 @@ static int configure_endpoint(struct snd_usb_substream *subs) subs->cur_rate, subs->cur_audiofmt, NULL); - -unlock: - mutex_unlock(&subs->stream->chip->shutdown_mutex); return ret; } @@ -505,7 +503,13 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } - if ((ret = set_format(subs, fmt)) < 0) + mutex_lock(&subs->stream->chip->shutdown_mutex); + if (subs->stream->chip->shutdown) + ret = -ENODEV; + else + ret = set_format(subs, fmt); + mutex_unlock(&subs->stream->chip->shutdown_mutex); + if (ret < 0) return ret; subs->interface = fmt->iface; @@ -528,8 +532,10 @@ static int snd_usb_hw_free(struct snd_pcm_substream *substream) subs->cur_rate = 0; subs->period_bytes = 0; mutex_lock(&subs->stream->chip->shutdown_mutex); - stop_endpoints(subs, 0, 1, 1); - deactivate_endpoints(subs); + if (!subs->stream->chip->shutdown) { + stop_endpoints(subs, 0, 1, 1); + deactivate_endpoints(subs); + } mutex_unlock(&subs->stream->chip->shutdown_mutex); return snd_pcm_lib_free_vmalloc_buffer(substream); } @@ -552,12 +558,19 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream) return -ENXIO; } - if (snd_BUG_ON(!subs->data_endpoint)) - return -EIO; + mutex_lock(&subs->stream->chip->shutdown_mutex); + if (subs->stream->chip->shutdown) { + ret = -ENODEV; + goto unlock; + } + if (snd_BUG_ON(!subs->data_endpoint)) { + ret = -EIO; + goto unlock; + } ret = set_format(subs, subs->cur_audiofmt); if (ret < 0) - return ret; + goto unlock; iface = usb_ifnum_to_if(subs->dev, subs->cur_audiofmt->iface); alts = &iface->altsetting[subs->cur_audiofmt->altset_idx]; @@ -567,12 +580,12 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream) subs->cur_audiofmt, subs->cur_rate); if (ret < 0) - return ret; + goto unlock; if (subs->need_setup_ep) { ret = configure_endpoint(subs); if (ret < 0) - return ret; + goto unlock; subs->need_setup_ep = false; } @@ -592,9 +605,11 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream) /* for playback, submit the URBs now; otherwise, the first hwptr_done * updates for all URBs would happen at the same time when starting */ if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) - return start_endpoints(subs, 1); + ret = start_endpoints(subs, 1); - return 0; + unlock: + mutex_unlock(&subs->stream->chip->shutdown_mutex); + return ret; } static struct snd_pcm_hardware snd_usb_hardware = @@ -647,7 +662,7 @@ static int hw_check_valid_format(struct snd_usb_substream *subs, return 0; } /* check whether the period time is >= the data packet interval */ - if (snd_usb_get_speed(subs->dev) != USB_SPEED_FULL) { + if (subs->speed != USB_SPEED_FULL) { ptime = 125 * (1 << fp->datainterval); if (ptime > pt->max || (ptime == pt->max && pt->openmax)) { hwc_debug(" > check: ptime %u > max %u\n", ptime, pt->max); @@ -925,7 +940,7 @@ static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substre return err; param_period_time_if_needed = SNDRV_PCM_HW_PARAM_PERIOD_TIME; - if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) + if (subs->speed == USB_SPEED_FULL) /* full speed devices have fixed data packet interval */ ptmin = 1000; if (ptmin == 1000) diff --git a/sound/usb/proc.c b/sound/usb/proc.c index ebc1a5b..d218f76 100644 --- a/sound/usb/proc.c +++ b/sound/usb/proc.c @@ -108,7 +108,7 @@ static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct s } snd_iprintf(buffer, "\n"); } - if (snd_usb_get_speed(subs->dev) != USB_SPEED_FULL) + if (subs->speed != USB_SPEED_FULL) snd_iprintf(buffer, " Data packet interval: %d us\n", 125 * (1 << fp->datainterval)); // snd_iprintf(buffer, " Max Packet Size = %d\n", fp->maxpacksize); @@ -124,7 +124,7 @@ static void proc_dump_ep_status(struct snd_usb_substream *subs, return; snd_iprintf(buffer, " Packet Size = %d\n", ep->curpacksize); snd_iprintf(buffer, " Momentary freq = %u Hz (%#x.%04x)\n", - snd_usb_get_speed(subs->dev) == USB_SPEED_FULL + subs->speed == USB_SPEED_FULL ? get_full_speed_hz(ep->freqm) : get_high_speed_hz(ep->freqm), ep->freqm >> 16, ep->freqm & 0xffff); diff --git a/sound/usb/stream.c b/sound/usb/stream.c index 083ed81..1de0c8c 100644 --- a/sound/usb/stream.c +++ b/sound/usb/stream.c @@ -90,6 +90,7 @@ static void snd_usb_init_substream(struct snd_usb_stream *as, subs->direction = stream; subs->dev = as->chip->dev; subs->txfr_quirk = as->chip->txfr_quirk; + subs->speed = snd_usb_get_speed(subs->dev); snd_usb_set_pcm_ops(as->pcm, stream); -- cgit v0.10.2 From 34f3c89fda4fba9fe689db22253ca8db2f5e6386 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 15 Oct 2012 12:16:02 +0200 Subject: ALSA: usb-audio: Use rwsem for disconnect protection Replace mutex with rwsem for codec->shutdown protection so that concurrent accesses are allowed. Also add the protection to snd_usb_autosuspend() and snd_usb_autoresume(), too. Reported-by: Matthieu CASTET Cc: Signed-off-by: Takashi Iwai diff --git a/sound/usb/card.c b/sound/usb/card.c index 561bb74..282f0fc 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -339,7 +339,7 @@ static int snd_usb_audio_create(struct usb_device *dev, int idx, } mutex_init(&chip->mutex); - mutex_init(&chip->shutdown_mutex); + init_rwsem(&chip->shutdown_rwsem); chip->index = idx; chip->dev = dev; chip->card = card; @@ -560,7 +560,7 @@ static void snd_usb_audio_disconnect(struct usb_device *dev, card = chip->card; mutex_lock(®ister_mutex); - mutex_lock(&chip->shutdown_mutex); + down_write(&chip->shutdown_rwsem); chip->shutdown = 1; chip->num_interfaces--; if (chip->num_interfaces <= 0) { @@ -582,11 +582,11 @@ static void snd_usb_audio_disconnect(struct usb_device *dev, snd_usb_mixer_disconnect(p); } usb_chip[chip->index] = NULL; - mutex_unlock(&chip->shutdown_mutex); + up_write(&chip->shutdown_rwsem); mutex_unlock(®ister_mutex); snd_card_free_when_closed(card); } else { - mutex_unlock(&chip->shutdown_mutex); + up_write(&chip->shutdown_rwsem); mutex_unlock(®ister_mutex); } } @@ -618,16 +618,20 @@ int snd_usb_autoresume(struct snd_usb_audio *chip) { int err = -ENODEV; + down_read(&chip->shutdown_rwsem); if (!chip->shutdown && !chip->probing) err = usb_autopm_get_interface(chip->pm_intf); + up_read(&chip->shutdown_rwsem); return err; } void snd_usb_autosuspend(struct snd_usb_audio *chip) { + down_read(&chip->shutdown_rwsem); if (!chip->shutdown && !chip->probing) usb_autopm_put_interface(chip->pm_intf); + up_read(&chip->shutdown_rwsem); } static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message) diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index c2ef11c..298070e 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -292,7 +292,7 @@ static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int v err = snd_usb_autoresume(cval->mixer->chip); if (err < 0) return -EIO; - mutex_lock(&chip->shutdown_mutex); + down_read(&chip->shutdown_rwsem); while (timeout-- > 0) { if (chip->shutdown) break; @@ -310,7 +310,7 @@ static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int v err = -EINVAL; out: - mutex_unlock(&chip->shutdown_mutex); + up_read(&chip->shutdown_rwsem); snd_usb_autosuspend(cval->mixer->chip); return err; } @@ -337,7 +337,7 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int v if (ret) goto error; - mutex_lock(&chip->shutdown_mutex); + down_read(&chip->shutdown_rwsem); if (chip->shutdown) ret = -ENODEV; else { @@ -346,7 +346,7 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int v USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, validx, idx, buf, size); } - mutex_unlock(&chip->shutdown_mutex); + up_read(&chip->shutdown_rwsem); snd_usb_autosuspend(chip); if (ret < 0) { @@ -453,7 +453,7 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, err = snd_usb_autoresume(chip); if (err < 0) return -EIO; - mutex_lock(&chip->shutdown_mutex); + down_read(&chip->shutdown_rwsem); while (timeout-- > 0) { if (chip->shutdown) break; @@ -471,7 +471,7 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, err = -EINVAL; out: - mutex_unlock(&chip->shutdown_mutex); + up_read(&chip->shutdown_rwsem); snd_usb_autosuspend(chip); return err; } diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 55e741c..37428f7 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -503,12 +503,12 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } - mutex_lock(&subs->stream->chip->shutdown_mutex); + down_read(&subs->stream->chip->shutdown_rwsem); if (subs->stream->chip->shutdown) ret = -ENODEV; else ret = set_format(subs, fmt); - mutex_unlock(&subs->stream->chip->shutdown_mutex); + up_read(&subs->stream->chip->shutdown_rwsem); if (ret < 0) return ret; @@ -531,12 +531,12 @@ static int snd_usb_hw_free(struct snd_pcm_substream *substream) subs->cur_audiofmt = NULL; subs->cur_rate = 0; subs->period_bytes = 0; - mutex_lock(&subs->stream->chip->shutdown_mutex); + down_read(&subs->stream->chip->shutdown_rwsem); if (!subs->stream->chip->shutdown) { stop_endpoints(subs, 0, 1, 1); deactivate_endpoints(subs); } - mutex_unlock(&subs->stream->chip->shutdown_mutex); + up_read(&subs->stream->chip->shutdown_rwsem); return snd_pcm_lib_free_vmalloc_buffer(substream); } @@ -558,7 +558,7 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream) return -ENXIO; } - mutex_lock(&subs->stream->chip->shutdown_mutex); + down_read(&subs->stream->chip->shutdown_rwsem); if (subs->stream->chip->shutdown) { ret = -ENODEV; goto unlock; @@ -608,7 +608,7 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream) ret = start_endpoints(subs, 1); unlock: - mutex_unlock(&subs->stream->chip->shutdown_mutex); + up_read(&subs->stream->chip->shutdown_rwsem); return ret; } diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h index b8233eb..ef42797 100644 --- a/sound/usb/usbaudio.h +++ b/sound/usb/usbaudio.h @@ -37,7 +37,7 @@ struct snd_usb_audio { struct usb_interface *pm_intf; u32 usb_id; struct mutex mutex; - struct mutex shutdown_mutex; + struct rw_semaphore shutdown_rwsem; unsigned int shutdown:1; unsigned int probing:1; unsigned int autosuspended:1; -- cgit v0.10.2 From 888ea7d5ac6815ba16b3b3a20f665a92c7af6724 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 15 Oct 2012 12:40:37 +0200 Subject: ALSA: usb-audio: Fix races at disconnection in mixer_quirks.c Similar like the previous commit, cover with chip->shutdown_rwsem and chip->shutdown checks. Reported-by: Matthieu CASTET Cc: Signed-off-by: Takashi Iwai diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c index 690000d..ae2b714 100644 --- a/sound/usb/mixer_quirks.c +++ b/sound/usb/mixer_quirks.c @@ -283,6 +283,11 @@ static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol, struct snd_ctl_e if (value > 1) return -EINVAL; changed = value != mixer->audigy2nx_leds[index]; + down_read(&mixer->chip->shutdown_rwsem); + if (mixer->chip->shutdown) { + err = -ENODEV; + goto out; + } if (mixer->chip->usb_id == USB_ID(0x041e, 0x3042)) err = snd_usb_ctl_msg(mixer->chip->dev, usb_sndctrlpipe(mixer->chip->dev, 0), 0x24, @@ -299,6 +304,8 @@ static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol, struct snd_ctl_e usb_sndctrlpipe(mixer->chip->dev, 0), 0x24, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, value, index + 2, NULL, 0); + out: + up_read(&mixer->chip->shutdown_rwsem); if (err < 0) return err; mixer->audigy2nx_leds[index] = value; @@ -392,11 +399,16 @@ static void snd_audigy2nx_proc_read(struct snd_info_entry *entry, for (i = 0; jacks[i].name; ++i) { snd_iprintf(buffer, "%s: ", jacks[i].name); - err = snd_usb_ctl_msg(mixer->chip->dev, + down_read(&mixer->chip->shutdown_rwsem); + if (mixer->chip->shutdown) + err = 0; + else + err = snd_usb_ctl_msg(mixer->chip->dev, usb_rcvctrlpipe(mixer->chip->dev, 0), UAC_GET_MEM, USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0, jacks[i].unitid << 8, buf, 3); + up_read(&mixer->chip->shutdown_rwsem); if (err == 3 && (buf[0] == 3 || buf[0] == 6)) snd_iprintf(buffer, "%02x %02x\n", buf[1], buf[2]); else @@ -426,10 +438,15 @@ static int snd_xonar_u1_switch_put(struct snd_kcontrol *kcontrol, else new_status = old_status & ~0x02; changed = new_status != old_status; - err = snd_usb_ctl_msg(mixer->chip->dev, + down_read(&mixer->chip->shutdown_rwsem); + if (mixer->chip->shutdown) + err = -ENODEV; + else + err = snd_usb_ctl_msg(mixer->chip->dev, usb_sndctrlpipe(mixer->chip->dev, 0), 0x08, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, 50, 0, &new_status, 1); + up_read(&mixer->chip->shutdown_rwsem); if (err < 0) return err; mixer->xonar_u1_status = new_status; @@ -468,11 +485,17 @@ static int snd_nativeinstruments_control_get(struct snd_kcontrol *kcontrol, u8 bRequest = (kcontrol->private_value >> 16) & 0xff; u16 wIndex = kcontrol->private_value & 0xffff; u8 tmp; + int ret; - int ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), bRequest, + down_read(&mixer->chip->shutdown_rwsem); + if (mixer->chip->shutdown) + ret = -ENODEV; + else + ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), bRequest, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, 0, cpu_to_le16(wIndex), &tmp, sizeof(tmp), 1000); + up_read(&mixer->chip->shutdown_rwsem); if (ret < 0) { snd_printk(KERN_ERR @@ -493,11 +516,17 @@ static int snd_nativeinstruments_control_put(struct snd_kcontrol *kcontrol, u8 bRequest = (kcontrol->private_value >> 16) & 0xff; u16 wIndex = kcontrol->private_value & 0xffff; u16 wValue = ucontrol->value.integer.value[0]; + int ret; - int ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), bRequest, + down_read(&mixer->chip->shutdown_rwsem); + if (mixer->chip->shutdown) + ret = -ENODEV; + else + ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), bRequest, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, cpu_to_le16(wValue), cpu_to_le16(wIndex), NULL, 0, 1000); + up_read(&mixer->chip->shutdown_rwsem); if (ret < 0) { snd_printk(KERN_ERR @@ -656,11 +685,16 @@ static int snd_ftu_eff_switch_get(struct snd_kcontrol *kctl, return -EINVAL; - err = snd_usb_ctl_msg(chip->dev, + down_read(&mixer->chip->shutdown_rwsem); + if (mixer->chip->shutdown) + err = -ENODEV; + else + err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC_GET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, validx << 8, snd_usb_ctrl_intf(chip) | (id << 8), value, val_len); + up_read(&mixer->chip->shutdown_rwsem); if (err < 0) return err; @@ -703,11 +737,16 @@ static int snd_ftu_eff_switch_put(struct snd_kcontrol *kctl, if (!pval->is_cached) { /* Read current value */ - err = snd_usb_ctl_msg(chip->dev, + down_read(&mixer->chip->shutdown_rwsem); + if (mixer->chip->shutdown) + err = -ENODEV; + else + err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC_GET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, validx << 8, snd_usb_ctrl_intf(chip) | (id << 8), value, val_len); + up_read(&mixer->chip->shutdown_rwsem); if (err < 0) return err; @@ -719,11 +758,16 @@ static int snd_ftu_eff_switch_put(struct snd_kcontrol *kctl, if (cur_val != new_val) { value[0] = new_val; value[1] = 0; - err = snd_usb_ctl_msg(chip->dev, + down_read(&mixer->chip->shutdown_rwsem); + if (mixer->chip->shutdown) + err = -ENODEV; + else + err = snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0), UAC_SET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, validx << 8, snd_usb_ctrl_intf(chip) | (id << 8), value, val_len); + up_read(&mixer->chip->shutdown_rwsem); if (err < 0) return err; -- cgit v0.10.2 From a0830dbd4e42b38aefdf3fb61ba5019a1a99ea85 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 16 Oct 2012 13:05:59 +0200 Subject: ALSA: Add a reference counter to card instance For more strict protection for wild disconnections, a refcount is introduced to the card instance, and let it up/down when an object is referred via snd_lookup_*() in the open ops. The free-after-last-close check is also changed to check this refcount instead of the empty list, too. Reported-by: Matthieu CASTET Cc: Signed-off-by: Takashi Iwai diff --git a/include/sound/core.h b/include/sound/core.h index bc05668..93896ad 100644 --- a/include/sound/core.h +++ b/include/sound/core.h @@ -132,6 +132,7 @@ struct snd_card { int shutdown; /* this card is going down */ int free_on_last_close; /* free in context of file_release */ wait_queue_head_t shutdown_sleep; + atomic_t refcount; /* refcount for disconnection */ struct device *dev; /* device assigned to this card */ struct device *card_dev; /* cardX object for sysfs */ @@ -189,6 +190,7 @@ struct snd_minor { const struct file_operations *f_ops; /* file operations */ void *private_data; /* private data for f_ops->open */ struct device *dev; /* device for sysfs */ + struct snd_card *card_ptr; /* assigned card instance */ }; /* return a device pointer linked to each sound device as a parent */ @@ -295,6 +297,7 @@ int snd_card_info_done(void); int snd_component_add(struct snd_card *card, const char *component); int snd_card_file_add(struct snd_card *card, struct file *file); int snd_card_file_remove(struct snd_card *card, struct file *file); +void snd_card_unref(struct snd_card *card); #define snd_card_set_dev(card, devptr) ((card)->dev = (devptr)) diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c index c40ae57..ad11dc9 100644 --- a/sound/core/compress_offload.c +++ b/sound/core/compress_offload.c @@ -100,12 +100,15 @@ static int snd_compr_open(struct inode *inode, struct file *f) if (dirn != compr->direction) { pr_err("this device doesn't support this direction\n"); + snd_card_unref(compr->card); return -EINVAL; } data = kzalloc(sizeof(*data), GFP_KERNEL); - if (!data) + if (!data) { + snd_card_unref(compr->card); return -ENOMEM; + } data->stream.ops = compr->ops; data->stream.direction = dirn; data->stream.private_data = compr->private_data; @@ -113,6 +116,7 @@ static int snd_compr_open(struct inode *inode, struct file *f) runtime = kzalloc(sizeof(*runtime), GFP_KERNEL); if (!runtime) { kfree(data); + snd_card_unref(compr->card); return -ENOMEM; } runtime->state = SNDRV_PCM_STATE_OPEN; @@ -126,7 +130,8 @@ static int snd_compr_open(struct inode *inode, struct file *f) kfree(runtime); kfree(data); } - return ret; + snd_card_unref(compr->card); + return 0; } static int snd_compr_free(struct inode *inode, struct file *f) diff --git a/sound/core/control.c b/sound/core/control.c index 7e86a5b..9768a39 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -86,6 +86,7 @@ static int snd_ctl_open(struct inode *inode, struct file *file) write_lock_irqsave(&card->ctl_files_rwlock, flags); list_add_tail(&ctl->list, &card->ctl_files); write_unlock_irqrestore(&card->ctl_files_rwlock, flags); + snd_card_unref(card); return 0; __error: @@ -93,6 +94,8 @@ static int snd_ctl_open(struct inode *inode, struct file *file) __error2: snd_card_file_remove(card, file); __error1: + if (card) + snd_card_unref(card); return err; } diff --git a/sound/core/hwdep.c b/sound/core/hwdep.c index 75ea16f..53a6ba5 100644 --- a/sound/core/hwdep.c +++ b/sound/core/hwdep.c @@ -100,8 +100,10 @@ static int snd_hwdep_open(struct inode *inode, struct file * file) if (hw == NULL) return -ENODEV; - if (!try_module_get(hw->card->module)) + if (!try_module_get(hw->card->module)) { + snd_card_unref(hw->card); return -EFAULT; + } init_waitqueue_entry(&wait, current); add_wait_queue(&hw->open_wait, &wait); @@ -148,6 +150,7 @@ static int snd_hwdep_open(struct inode *inode, struct file * file) mutex_unlock(&hw->open_mutex); if (err < 0) module_put(hw->card->module); + snd_card_unref(hw->card); return err; } diff --git a/sound/core/init.c b/sound/core/init.c index d8ec849..7b012d1 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -213,6 +213,7 @@ int snd_card_create(int idx, const char *xid, spin_lock_init(&card->files_lock); INIT_LIST_HEAD(&card->files_list); init_waitqueue_head(&card->shutdown_sleep); + atomic_set(&card->refcount, 0); #ifdef CONFIG_PM mutex_init(&card->power_lock); init_waitqueue_head(&card->power_sleep); @@ -446,21 +447,36 @@ static int snd_card_do_free(struct snd_card *card) return 0; } +/** + * snd_card_unref - release the reference counter + * @card: the card instance + * + * Decrements the reference counter. When it reaches to zero, wake up + * the sleeper and call the destructor if needed. + */ +void snd_card_unref(struct snd_card *card) +{ + if (atomic_dec_and_test(&card->refcount)) { + wake_up(&card->shutdown_sleep); + if (card->free_on_last_close) + snd_card_do_free(card); + } +} +EXPORT_SYMBOL(snd_card_unref); + int snd_card_free_when_closed(struct snd_card *card) { - int free_now = 0; - int ret = snd_card_disconnect(card); - if (ret) - return ret; + int ret; - spin_lock(&card->files_lock); - if (list_empty(&card->files_list)) - free_now = 1; - else - card->free_on_last_close = 1; - spin_unlock(&card->files_lock); + atomic_inc(&card->refcount); + ret = snd_card_disconnect(card); + if (ret) { + atomic_dec(&card->refcount); + return ret; + } - if (free_now) + card->free_on_last_close = 1; + if (atomic_dec_and_test(&card->refcount)) snd_card_do_free(card); return 0; } @@ -474,7 +490,7 @@ int snd_card_free(struct snd_card *card) return ret; /* wait, until all devices are ready for the free operation */ - wait_event(card->shutdown_sleep, list_empty(&card->files_list)); + wait_event(card->shutdown_sleep, !atomic_read(&card->refcount)); snd_card_do_free(card); return 0; } @@ -886,6 +902,7 @@ int snd_card_file_add(struct snd_card *card, struct file *file) return -ENODEV; } list_add(&mfile->list, &card->files_list); + atomic_inc(&card->refcount); spin_unlock(&card->files_lock); return 0; } @@ -908,7 +925,6 @@ EXPORT_SYMBOL(snd_card_file_add); int snd_card_file_remove(struct snd_card *card, struct file *file) { struct snd_monitor_file *mfile, *found = NULL; - int last_close = 0; spin_lock(&card->files_lock); list_for_each_entry(mfile, &card->files_list, list) { @@ -923,19 +939,13 @@ int snd_card_file_remove(struct snd_card *card, struct file *file) break; } } - if (list_empty(&card->files_list)) - last_close = 1; spin_unlock(&card->files_lock); - if (last_close) { - wake_up(&card->shutdown_sleep); - if (card->free_on_last_close) - snd_card_do_free(card); - } if (!found) { snd_printk(KERN_ERR "ALSA card file remove problem (%p)\n", file); return -ENOENT; } kfree(found); + snd_card_unref(card); return 0; } diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c index 29f6ded..a9a2e63 100644 --- a/sound/core/oss/mixer_oss.c +++ b/sound/core/oss/mixer_oss.c @@ -52,14 +52,19 @@ static int snd_mixer_oss_open(struct inode *inode, struct file *file) SNDRV_OSS_DEVICE_TYPE_MIXER); if (card == NULL) return -ENODEV; - if (card->mixer_oss == NULL) + if (card->mixer_oss == NULL) { + snd_card_unref(card); return -ENODEV; + } err = snd_card_file_add(card, file); - if (err < 0) + if (err < 0) { + snd_card_unref(card); return err; + } fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL); if (fmixer == NULL) { snd_card_file_remove(card, file); + snd_card_unref(card); return -ENOMEM; } fmixer->card = card; @@ -68,6 +73,7 @@ static int snd_mixer_oss_open(struct inode *inode, struct file *file) if (!try_module_get(card->module)) { kfree(fmixer); snd_card_file_remove(card, file); + snd_card_unref(card); return -EFAULT; } return 0; diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index 08fde00..2529e01 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -2457,6 +2457,8 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file) __error2: snd_card_file_remove(pcm->card, file); __error1: + if (pcm) + snd_card_unref(pcm->card); return err; } diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 8753c89..48c6a70 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -1642,6 +1642,7 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd) write_unlock_irq(&snd_pcm_link_rwlock); up_write(&snd_pcm_link_rwsem); _nolock: + snd_card_unref(substream1->pcm->card); fput_light(file, fput_needed); if (res < 0) kfree(group); @@ -2116,7 +2117,9 @@ static int snd_pcm_playback_open(struct inode *inode, struct file *file) return err; pcm = snd_lookup_minor_data(iminor(inode), SNDRV_DEVICE_TYPE_PCM_PLAYBACK); - return snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_PLAYBACK); + err = snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_PLAYBACK); + snd_card_unref(pcm->card); + return err; } static int snd_pcm_capture_open(struct inode *inode, struct file *file) @@ -2127,7 +2130,9 @@ static int snd_pcm_capture_open(struct inode *inode, struct file *file) return err; pcm = snd_lookup_minor_data(iminor(inode), SNDRV_DEVICE_TYPE_PCM_CAPTURE); - return snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_CAPTURE); + err = snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_CAPTURE); + snd_card_unref(pcm->card); + return err; } static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream) diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c index ebf6e49..7d4f62a 100644 --- a/sound/core/rawmidi.c +++ b/sound/core/rawmidi.c @@ -379,8 +379,10 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file) if (rmidi == NULL) return -ENODEV; - if (!try_module_get(rmidi->card->module)) + if (!try_module_get(rmidi->card->module)) { + snd_card_unref(rmidi->card); return -ENXIO; + } mutex_lock(&rmidi->open_mutex); card = rmidi->card; @@ -440,6 +442,7 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file) #endif file->private_data = rawmidi_file; mutex_unlock(&rmidi->open_mutex); + snd_card_unref(rmidi->card); return 0; __error: @@ -447,6 +450,7 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file) __error_card: mutex_unlock(&rmidi->open_mutex); module_put(rmidi->card->module); + snd_card_unref(rmidi->card); return err; } diff --git a/sound/core/sound.c b/sound/core/sound.c index 6439760..89780c3 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -98,6 +98,10 @@ static void snd_request_other(int minor) * * Checks that a minor device with the specified type is registered, and returns * its user data pointer. + * + * This function increments the reference counter of the card instance + * if an associated instance with the given minor number and type is found. + * The caller must call snd_card_unref() appropriately later. */ void *snd_lookup_minor_data(unsigned int minor, int type) { @@ -108,9 +112,11 @@ void *snd_lookup_minor_data(unsigned int minor, int type) return NULL; mutex_lock(&sound_mutex); mreg = snd_minors[minor]; - if (mreg && mreg->type == type) + if (mreg && mreg->type == type) { private_data = mreg->private_data; - else + if (mreg->card_ptr) + atomic_inc(&mreg->card_ptr->refcount); + } else private_data = NULL; mutex_unlock(&sound_mutex); return private_data; @@ -275,6 +281,7 @@ int snd_register_device_for_dev(int type, struct snd_card *card, int dev, preg->device = dev; preg->f_ops = f_ops; preg->private_data = private_data; + preg->card_ptr = card; mutex_lock(&sound_mutex); #ifdef CONFIG_SND_DYNAMIC_MINORS minor = snd_find_free_minor(type); diff --git a/sound/core/sound_oss.c b/sound/core/sound_oss.c index e952833..e1d79ee 100644 --- a/sound/core/sound_oss.c +++ b/sound/core/sound_oss.c @@ -40,6 +40,9 @@ static struct snd_minor *snd_oss_minors[SNDRV_OSS_MINORS]; static DEFINE_MUTEX(sound_oss_mutex); +/* NOTE: This function increments the refcount of the associated card like + * snd_lookup_minor_data(); the caller must call snd_card_unref() appropriately + */ void *snd_lookup_oss_minor_data(unsigned int minor, int type) { struct snd_minor *mreg; @@ -49,9 +52,11 @@ void *snd_lookup_oss_minor_data(unsigned int minor, int type) return NULL; mutex_lock(&sound_oss_mutex); mreg = snd_oss_minors[minor]; - if (mreg && mreg->type == type) + if (mreg && mreg->type == type) { private_data = mreg->private_data; - else + if (mreg->card_ptr) + atomic_inc(&mreg->card_ptr->refcount); + } else private_data = NULL; mutex_unlock(&sound_oss_mutex); return private_data; @@ -123,6 +128,7 @@ int snd_register_oss_device(int type, struct snd_card *card, int dev, preg->device = dev; preg->f_ops = f_ops; preg->private_data = private_data; + preg->card_ptr = card; mutex_lock(&sound_oss_mutex); snd_oss_minors[minor] = preg; minor_unit = SNDRV_MINOR_OSS_DEVICE(minor); -- cgit v0.10.2 From 0914f7961babbf28aaa2f19b453951fb4841c03f Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 16 Oct 2012 16:43:39 +0200 Subject: ALSA: Avoid endless sleep after disconnect When disconnect callback is called, each component should wake up sleepers and check card->shutdown flag for avoiding the endless sleep blocking the proper resource release. Cc: Signed-off-by: Takashi Iwai diff --git a/sound/core/control.c b/sound/core/control.c index 9768a39..8c7c2c9 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -1437,6 +1437,8 @@ static ssize_t snd_ctl_read(struct file *file, char __user *buffer, spin_unlock_irq(&ctl->read_lock); schedule(); remove_wait_queue(&ctl->change_sleep, &wait); + if (ctl->card->shutdown) + return -ENODEV; if (signal_pending(current)) return -ERESTARTSYS; spin_lock_irq(&ctl->read_lock); diff --git a/sound/core/hwdep.c b/sound/core/hwdep.c index 53a6ba5..3f7f662 100644 --- a/sound/core/hwdep.c +++ b/sound/core/hwdep.c @@ -131,6 +131,10 @@ static int snd_hwdep_open(struct inode *inode, struct file * file) mutex_unlock(&hw->open_mutex); schedule(); mutex_lock(&hw->open_mutex); + if (hw->card->shutdown) { + err = -ENODEV; + break; + } if (signal_pending(current)) { err = -ERESTARTSYS; break; @@ -462,12 +466,15 @@ static int snd_hwdep_dev_disconnect(struct snd_device *device) mutex_unlock(®ister_mutex); return -EINVAL; } + mutex_lock(&hwdep->open_mutex); + wake_up(&hwdep->open_wait); #ifdef CONFIG_SND_OSSEMUL if (hwdep->ossreg) snd_unregister_oss_device(hwdep->oss_type, hwdep->card, hwdep->device); #endif snd_unregister_device(SNDRV_DEVICE_TYPE_HWDEP, hwdep->card, hwdep->device); list_del_init(&hwdep->list); + mutex_unlock(&hwdep->open_mutex); mutex_unlock(®ister_mutex); return 0; } diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index 2529e01..f337b66 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -2441,6 +2441,10 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file) mutex_unlock(&pcm->open_mutex); schedule(); mutex_lock(&pcm->open_mutex); + if (pcm->card->shutdown) { + err = -ENODEV; + break; + } if (signal_pending(current)) { err = -ERESTARTSYS; break; diff --git a/sound/core/pcm.c b/sound/core/pcm.c index 993b240..030102c 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -1087,12 +1087,16 @@ static int snd_pcm_dev_disconnect(struct snd_device *device) goto unlock; mutex_lock(&pcm->open_mutex); + wake_up(&pcm->open_wait); list_del_init(&pcm->list); for (cidx = 0; cidx < 2; cidx++) for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) { snd_pcm_stream_lock_irq(substream); - if (substream->runtime) + if (substream->runtime) { substream->runtime->status->state = SNDRV_PCM_STATE_DISCONNECTED; + wake_up(&substream->runtime->sleep); + wake_up(&substream->runtime->tsleep); + } snd_pcm_stream_unlock_irq(substream); } list_for_each_entry(notify, &snd_pcm_notify_list, list) { diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 48c6a70..6e8872d 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -1518,6 +1518,10 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream, down_read(&snd_pcm_link_rwsem); snd_pcm_stream_lock_irq(substream); remove_wait_queue(&to_check->sleep, &wait); + if (card->shutdown) { + result = -ENODEV; + break; + } if (tout == 0) { if (substream->runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) result = -ESTRPIPE; @@ -2169,6 +2173,10 @@ static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream) mutex_unlock(&pcm->open_mutex); schedule(); mutex_lock(&pcm->open_mutex); + if (pcm->card->shutdown) { + err = -ENODEV; + break; + } if (signal_pending(current)) { err = -ERESTARTSYS; break; diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c index 7d4f62a..1bb95ae 100644 --- a/sound/core/rawmidi.c +++ b/sound/core/rawmidi.c @@ -424,6 +424,10 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file) mutex_unlock(&rmidi->open_mutex); schedule(); mutex_lock(&rmidi->open_mutex); + if (rmidi->card->shutdown) { + err = -ENODEV; + break; + } if (signal_pending(current)) { err = -ERESTARTSYS; break; @@ -995,6 +999,8 @@ static ssize_t snd_rawmidi_read(struct file *file, char __user *buf, size_t coun spin_unlock_irq(&runtime->lock); schedule(); remove_wait_queue(&runtime->sleep, &wait); + if (rfile->rmidi->card->shutdown) + return -ENODEV; if (signal_pending(current)) return result > 0 ? result : -ERESTARTSYS; if (!runtime->avail) @@ -1238,6 +1244,8 @@ static ssize_t snd_rawmidi_write(struct file *file, const char __user *buf, spin_unlock_irq(&runtime->lock); timeout = schedule_timeout(30 * HZ); remove_wait_queue(&runtime->sleep, &wait); + if (rfile->rmidi->card->shutdown) + return -ENODEV; if (signal_pending(current)) return result > 0 ? result : -ERESTARTSYS; if (!runtime->avail && !timeout) @@ -1613,9 +1621,20 @@ static int snd_rawmidi_dev_register(struct snd_device *device) static int snd_rawmidi_dev_disconnect(struct snd_device *device) { struct snd_rawmidi *rmidi = device->device_data; + int dir; mutex_lock(®ister_mutex); + mutex_lock(&rmidi->open_mutex); + wake_up(&rmidi->open_wait); list_del_init(&rmidi->list); + for (dir = 0; dir < 2; dir++) { + struct snd_rawmidi_substream *s; + list_for_each_entry(s, &rmidi->streams[dir].substreams, list) { + if (s->runtime) + wake_up(&s->runtime->sleep); + } + } + #ifdef CONFIG_SND_OSSEMUL if (rmidi->ossreg) { if ((int)rmidi->device == midi_map[rmidi->card->number]) { @@ -1630,6 +1649,7 @@ static int snd_rawmidi_dev_disconnect(struct snd_device *device) } #endif /* CONFIG_SND_OSSEMUL */ snd_unregister_device(SNDRV_DEVICE_TYPE_RAWMIDI, rmidi->card, rmidi->device); + mutex_unlock(&rmidi->open_mutex); mutex_unlock(®ister_mutex); return 0; } -- cgit v0.10.2 From fe81ad1c2d8149323e4a63c5a3bf8b170597c8b7 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 8 Oct 2012 15:15:46 +0900 Subject: ASoC: wm5102: Write register value corrections after SYSCLK is enabled Evalation of the WM5102 has identified a number of register values which should be written after SYSCLK is enabled on revision A in order to improve performance. Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/wm5102.c b/sound/soc/codecs/wm5102.c index 1722b58..7394e73 100644 --- a/sound/soc/codecs/wm5102.c +++ b/sound/soc/codecs/wm5102.c @@ -42,6 +42,556 @@ static DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0); static DECLARE_TLV_DB_SCALE(digital_tlv, -6400, 50, 0); static DECLARE_TLV_DB_SCALE(noise_tlv, 0, 600, 0); +static const struct reg_default wm5102_sysclk_reva_patch[] = { + { 0x3000, 0x2225 }, + { 0x3001, 0x3a03 }, + { 0x3002, 0x0225 }, + { 0x3003, 0x0801 }, + { 0x3004, 0x6249 }, + { 0x3005, 0x0c04 }, + { 0x3006, 0x0225 }, + { 0x3007, 0x5901 }, + { 0x3008, 0xe249 }, + { 0x3009, 0x030d }, + { 0x300a, 0x0249 }, + { 0x300b, 0x2c01 }, + { 0x300c, 0xe249 }, + { 0x300d, 0x4342 }, + { 0x300e, 0xe249 }, + { 0x300f, 0x73c0 }, + { 0x3010, 0x4249 }, + { 0x3011, 0x0c00 }, + { 0x3012, 0x0225 }, + { 0x3013, 0x1f01 }, + { 0x3014, 0x0225 }, + { 0x3015, 0x1e01 }, + { 0x3016, 0x0225 }, + { 0x3017, 0xfa00 }, + { 0x3018, 0x0000 }, + { 0x3019, 0xf000 }, + { 0x301a, 0x0000 }, + { 0x301b, 0xf000 }, + { 0x301c, 0x0000 }, + { 0x301d, 0xf000 }, + { 0x301e, 0x0000 }, + { 0x301f, 0xf000 }, + { 0x3020, 0x0000 }, + { 0x3021, 0xf000 }, + { 0x3022, 0x0000 }, + { 0x3023, 0xf000 }, + { 0x3024, 0x0000 }, + { 0x3025, 0xf000 }, + { 0x3026, 0x0000 }, + { 0x3027, 0xf000 }, + { 0x3028, 0x0000 }, + { 0x3029, 0xf000 }, + { 0x302a, 0x0000 }, + { 0x302b, 0xf000 }, + { 0x302c, 0x0000 }, + { 0x302d, 0xf000 }, + { 0x302e, 0x0000 }, + { 0x302f, 0xf000 }, + { 0x3030, 0x0225 }, + { 0x3031, 0x1a01 }, + { 0x3032, 0x0225 }, + { 0x3033, 0x1e00 }, + { 0x3034, 0x0225 }, + { 0x3035, 0x1f00 }, + { 0x3036, 0x6225 }, + { 0x3037, 0xf800 }, + { 0x3038, 0x0000 }, + { 0x3039, 0xf000 }, + { 0x303a, 0x0000 }, + { 0x303b, 0xf000 }, + { 0x303c, 0x0000 }, + { 0x303d, 0xf000 }, + { 0x303e, 0x0000 }, + { 0x303f, 0xf000 }, + { 0x3040, 0x2226 }, + { 0x3041, 0x3a03 }, + { 0x3042, 0x0226 }, + { 0x3043, 0x0801 }, + { 0x3044, 0x6249 }, + { 0x3045, 0x0c06 }, + { 0x3046, 0x0226 }, + { 0x3047, 0x5901 }, + { 0x3048, 0xe249 }, + { 0x3049, 0x030d }, + { 0x304a, 0x0249 }, + { 0x304b, 0x2c01 }, + { 0x304c, 0xe249 }, + { 0x304d, 0x4342 }, + { 0x304e, 0xe249 }, + { 0x304f, 0x73c0 }, + { 0x3050, 0x4249 }, + { 0x3051, 0x0c00 }, + { 0x3052, 0x0226 }, + { 0x3053, 0x1f01 }, + { 0x3054, 0x0226 }, + { 0x3055, 0x1e01 }, + { 0x3056, 0x0226 }, + { 0x3057, 0xfa00 }, + { 0x3058, 0x0000 }, + { 0x3059, 0xf000 }, + { 0x305a, 0x0000 }, + { 0x305b, 0xf000 }, + { 0x305c, 0x0000 }, + { 0x305d, 0xf000 }, + { 0x305e, 0x0000 }, + { 0x305f, 0xf000 }, + { 0x3060, 0x0000 }, + { 0x3061, 0xf000 }, + { 0x3062, 0x0000 }, + { 0x3063, 0xf000 }, + { 0x3064, 0x0000 }, + { 0x3065, 0xf000 }, + { 0x3066, 0x0000 }, + { 0x3067, 0xf000 }, + { 0x3068, 0x0000 }, + { 0x3069, 0xf000 }, + { 0x306a, 0x0000 }, + { 0x306b, 0xf000 }, + { 0x306c, 0x0000 }, + { 0x306d, 0xf000 }, + { 0x306e, 0x0000 }, + { 0x306f, 0xf000 }, + { 0x3070, 0x0226 }, + { 0x3071, 0x1a01 }, + { 0x3072, 0x0226 }, + { 0x3073, 0x1e00 }, + { 0x3074, 0x0226 }, + { 0x3075, 0x1f00 }, + { 0x3076, 0x6226 }, + { 0x3077, 0xf800 }, + { 0x3078, 0x0000 }, + { 0x3079, 0xf000 }, + { 0x307a, 0x0000 }, + { 0x307b, 0xf000 }, + { 0x307c, 0x0000 }, + { 0x307d, 0xf000 }, + { 0x307e, 0x0000 }, + { 0x307f, 0xf000 }, + { 0x3080, 0x2227 }, + { 0x3081, 0x3a03 }, + { 0x3082, 0x0227 }, + { 0x3083, 0x0801 }, + { 0x3084, 0x6255 }, + { 0x3085, 0x0c04 }, + { 0x3086, 0x0227 }, + { 0x3087, 0x5901 }, + { 0x3088, 0xe255 }, + { 0x3089, 0x030d }, + { 0x308a, 0x0255 }, + { 0x308b, 0x2c01 }, + { 0x308c, 0xe255 }, + { 0x308d, 0x4342 }, + { 0x308e, 0xe255 }, + { 0x308f, 0x73c0 }, + { 0x3090, 0x4255 }, + { 0x3091, 0x0c00 }, + { 0x3092, 0x0227 }, + { 0x3093, 0x1f01 }, + { 0x3094, 0x0227 }, + { 0x3095, 0x1e01 }, + { 0x3096, 0x0227 }, + { 0x3097, 0xfa00 }, + { 0x3098, 0x0000 }, + { 0x3099, 0xf000 }, + { 0x309a, 0x0000 }, + { 0x309b, 0xf000 }, + { 0x309c, 0x0000 }, + { 0x309d, 0xf000 }, + { 0x309e, 0x0000 }, + { 0x309f, 0xf000 }, + { 0x30a0, 0x0000 }, + { 0x30a1, 0xf000 }, + { 0x30a2, 0x0000 }, + { 0x30a3, 0xf000 }, + { 0x30a4, 0x0000 }, + { 0x30a5, 0xf000 }, + { 0x30a6, 0x0000 }, + { 0x30a7, 0xf000 }, + { 0x30a8, 0x0000 }, + { 0x30a9, 0xf000 }, + { 0x30aa, 0x0000 }, + { 0x30ab, 0xf000 }, + { 0x30ac, 0x0000 }, + { 0x30ad, 0xf000 }, + { 0x30ae, 0x0000 }, + { 0x30af, 0xf000 }, + { 0x30b0, 0x0227 }, + { 0x30b1, 0x1a01 }, + { 0x30b2, 0x0227 }, + { 0x30b3, 0x1e00 }, + { 0x30b4, 0x0227 }, + { 0x30b5, 0x1f00 }, + { 0x30b6, 0x6227 }, + { 0x30b7, 0xf800 }, + { 0x30b8, 0x0000 }, + { 0x30b9, 0xf000 }, + { 0x30ba, 0x0000 }, + { 0x30bb, 0xf000 }, + { 0x30bc, 0x0000 }, + { 0x30bd, 0xf000 }, + { 0x30be, 0x0000 }, + { 0x30bf, 0xf000 }, + { 0x30c0, 0x2228 }, + { 0x30c1, 0x3a03 }, + { 0x30c2, 0x0228 }, + { 0x30c3, 0x0801 }, + { 0x30c4, 0x6255 }, + { 0x30c5, 0x0c06 }, + { 0x30c6, 0x0228 }, + { 0x30c7, 0x5901 }, + { 0x30c8, 0xe255 }, + { 0x30c9, 0x030d }, + { 0x30ca, 0x0255 }, + { 0x30cb, 0x2c01 }, + { 0x30cc, 0xe255 }, + { 0x30cd, 0x4342 }, + { 0x30ce, 0xe255 }, + { 0x30cf, 0x73c0 }, + { 0x30d0, 0x4255 }, + { 0x30d1, 0x0c00 }, + { 0x30d2, 0x0228 }, + { 0x30d3, 0x1f01 }, + { 0x30d4, 0x0228 }, + { 0x30d5, 0x1e01 }, + { 0x30d6, 0x0228 }, + { 0x30d7, 0xfa00 }, + { 0x30d8, 0x0000 }, + { 0x30d9, 0xf000 }, + { 0x30da, 0x0000 }, + { 0x30db, 0xf000 }, + { 0x30dc, 0x0000 }, + { 0x30dd, 0xf000 }, + { 0x30de, 0x0000 }, + { 0x30df, 0xf000 }, + { 0x30e0, 0x0000 }, + { 0x30e1, 0xf000 }, + { 0x30e2, 0x0000 }, + { 0x30e3, 0xf000 }, + { 0x30e4, 0x0000 }, + { 0x30e5, 0xf000 }, + { 0x30e6, 0x0000 }, + { 0x30e7, 0xf000 }, + { 0x30e8, 0x0000 }, + { 0x30e9, 0xf000 }, + { 0x30ea, 0x0000 }, + { 0x30eb, 0xf000 }, + { 0x30ec, 0x0000 }, + { 0x30ed, 0xf000 }, + { 0x30ee, 0x0000 }, + { 0x30ef, 0xf000 }, + { 0x30f0, 0x0228 }, + { 0x30f1, 0x1a01 }, + { 0x30f2, 0x0228 }, + { 0x30f3, 0x1e00 }, + { 0x30f4, 0x0228 }, + { 0x30f5, 0x1f00 }, + { 0x30f6, 0x6228 }, + { 0x30f7, 0xf800 }, + { 0x30f8, 0x0000 }, + { 0x30f9, 0xf000 }, + { 0x30fa, 0x0000 }, + { 0x30fb, 0xf000 }, + { 0x30fc, 0x0000 }, + { 0x30fd, 0xf000 }, + { 0x30fe, 0x0000 }, + { 0x30ff, 0xf000 }, + { 0x3100, 0x222b }, + { 0x3101, 0x3a03 }, + { 0x3102, 0x222b }, + { 0x3103, 0x5803 }, + { 0x3104, 0xe26f }, + { 0x3105, 0x030d }, + { 0x3106, 0x626f }, + { 0x3107, 0x2c01 }, + { 0x3108, 0xe26f }, + { 0x3109, 0x4342 }, + { 0x310a, 0xe26f }, + { 0x310b, 0x73c0 }, + { 0x310c, 0x026f }, + { 0x310d, 0x0c00 }, + { 0x310e, 0x022b }, + { 0x310f, 0x1f01 }, + { 0x3110, 0x022b }, + { 0x3111, 0x1e01 }, + { 0x3112, 0x022b }, + { 0x3113, 0xfa00 }, + { 0x3114, 0x0000 }, + { 0x3115, 0xf000 }, + { 0x3116, 0x0000 }, + { 0x3117, 0xf000 }, + { 0x3118, 0x0000 }, + { 0x3119, 0xf000 }, + { 0x311a, 0x0000 }, + { 0x311b, 0xf000 }, + { 0x311c, 0x0000 }, + { 0x311d, 0xf000 }, + { 0x311e, 0x0000 }, + { 0x311f, 0xf000 }, + { 0x3120, 0x022b }, + { 0x3121, 0x0a01 }, + { 0x3122, 0x022b }, + { 0x3123, 0x1e00 }, + { 0x3124, 0x022b }, + { 0x3125, 0x1f00 }, + { 0x3126, 0x622b }, + { 0x3127, 0xf800 }, + { 0x3128, 0x0000 }, + { 0x3129, 0xf000 }, + { 0x312a, 0x0000 }, + { 0x312b, 0xf000 }, + { 0x312c, 0x0000 }, + { 0x312d, 0xf000 }, + { 0x312e, 0x0000 }, + { 0x312f, 0xf000 }, + { 0x3130, 0x0000 }, + { 0x3131, 0xf000 }, + { 0x3132, 0x0000 }, + { 0x3133, 0xf000 }, + { 0x3134, 0x0000 }, + { 0x3135, 0xf000 }, + { 0x3136, 0x0000 }, + { 0x3137, 0xf000 }, + { 0x3138, 0x0000 }, + { 0x3139, 0xf000 }, + { 0x313a, 0x0000 }, + { 0x313b, 0xf000 }, + { 0x313c, 0x0000 }, + { 0x313d, 0xf000 }, + { 0x313e, 0x0000 }, + { 0x313f, 0xf000 }, + { 0x3140, 0x0000 }, + { 0x3141, 0xf000 }, + { 0x3142, 0x0000 }, + { 0x3143, 0xf000 }, + { 0x3144, 0x0000 }, + { 0x3145, 0xf000 }, + { 0x3146, 0x0000 }, + { 0x3147, 0xf000 }, + { 0x3148, 0x0000 }, + { 0x3149, 0xf000 }, + { 0x314a, 0x0000 }, + { 0x314b, 0xf000 }, + { 0x314c, 0x0000 }, + { 0x314d, 0xf000 }, + { 0x314e, 0x0000 }, + { 0x314f, 0xf000 }, + { 0x3150, 0x0000 }, + { 0x3151, 0xf000 }, + { 0x3152, 0x0000 }, + { 0x3153, 0xf000 }, + { 0x3154, 0x0000 }, + { 0x3155, 0xf000 }, + { 0x3156, 0x0000 }, + { 0x3157, 0xf000 }, + { 0x3158, 0x0000 }, + { 0x3159, 0xf000 }, + { 0x315a, 0x0000 }, + { 0x315b, 0xf000 }, + { 0x315c, 0x0000 }, + { 0x315d, 0xf000 }, + { 0x315e, 0x0000 }, + { 0x315f, 0xf000 }, + { 0x3160, 0x0000 }, + { 0x3161, 0xf000 }, + { 0x3162, 0x0000 }, + { 0x3163, 0xf000 }, + { 0x3164, 0x0000 }, + { 0x3165, 0xf000 }, + { 0x3166, 0x0000 }, + { 0x3167, 0xf000 }, + { 0x3168, 0x0000 }, + { 0x3169, 0xf000 }, + { 0x316a, 0x0000 }, + { 0x316b, 0xf000 }, + { 0x316c, 0x0000 }, + { 0x316d, 0xf000 }, + { 0x316e, 0x0000 }, + { 0x316f, 0xf000 }, + { 0x3170, 0x0000 }, + { 0x3171, 0xf000 }, + { 0x3172, 0x0000 }, + { 0x3173, 0xf000 }, + { 0x3174, 0x0000 }, + { 0x3175, 0xf000 }, + { 0x3176, 0x0000 }, + { 0x3177, 0xf000 }, + { 0x3178, 0x0000 }, + { 0x3179, 0xf000 }, + { 0x317a, 0x0000 }, + { 0x317b, 0xf000 }, + { 0x317c, 0x0000 }, + { 0x317d, 0xf000 }, + { 0x317e, 0x0000 }, + { 0x317f, 0xf000 }, + { 0x3180, 0x2001 }, + { 0x3181, 0xf101 }, + { 0x3182, 0x0000 }, + { 0x3183, 0xf000 }, + { 0x3184, 0x0000 }, + { 0x3185, 0xf000 }, + { 0x3186, 0x0000 }, + { 0x3187, 0xf000 }, + { 0x3188, 0x0000 }, + { 0x3189, 0xf000 }, + { 0x318a, 0x0000 }, + { 0x318b, 0xf000 }, + { 0x318c, 0x0000 }, + { 0x318d, 0xf000 }, + { 0x318e, 0x0000 }, + { 0x318f, 0xf000 }, + { 0x3190, 0x0000 }, + { 0x3191, 0xf000 }, + { 0x3192, 0x0000 }, + { 0x3193, 0xf000 }, + { 0x3194, 0x0000 }, + { 0x3195, 0xf000 }, + { 0x3196, 0x0000 }, + { 0x3197, 0xf000 }, + { 0x3198, 0x0000 }, + { 0x3199, 0xf000 }, + { 0x319a, 0x0000 }, + { 0x319b, 0xf000 }, + { 0x319c, 0x0000 }, + { 0x319d, 0xf000 }, + { 0x319e, 0x0000 }, + { 0x319f, 0xf000 }, + { 0x31a0, 0x0000 }, + { 0x31a1, 0xf000 }, + { 0x31a2, 0x0000 }, + { 0x31a3, 0xf000 }, + { 0x31a4, 0x0000 }, + { 0x31a5, 0xf000 }, + { 0x31a6, 0x0000 }, + { 0x31a7, 0xf000 }, + { 0x31a8, 0x0000 }, + { 0x31a9, 0xf000 }, + { 0x31aa, 0x0000 }, + { 0x31ab, 0xf000 }, + { 0x31ac, 0x0000 }, + { 0x31ad, 0xf000 }, + { 0x31ae, 0x0000 }, + { 0x31af, 0xf000 }, + { 0x31b0, 0x0000 }, + { 0x31b1, 0xf000 }, + { 0x31b2, 0x0000 }, + { 0x31b3, 0xf000 }, + { 0x31b4, 0x0000 }, + { 0x31b5, 0xf000 }, + { 0x31b6, 0x0000 }, + { 0x31b7, 0xf000 }, + { 0x31b8, 0x0000 }, + { 0x31b9, 0xf000 }, + { 0x31ba, 0x0000 }, + { 0x31bb, 0xf000 }, + { 0x31bc, 0x0000 }, + { 0x31bd, 0xf000 }, + { 0x31be, 0x0000 }, + { 0x31bf, 0xf000 }, + { 0x31c0, 0x0000 }, + { 0x31c1, 0xf000 }, + { 0x31c2, 0x0000 }, + { 0x31c3, 0xf000 }, + { 0x31c4, 0x0000 }, + { 0x31c5, 0xf000 }, + { 0x31c6, 0x0000 }, + { 0x31c7, 0xf000 }, + { 0x31c8, 0x0000 }, + { 0x31c9, 0xf000 }, + { 0x31ca, 0x0000 }, + { 0x31cb, 0xf000 }, + { 0x31cc, 0x0000 }, + { 0x31cd, 0xf000 }, + { 0x31ce, 0x0000 }, + { 0x31cf, 0xf000 }, + { 0x31d0, 0x0000 }, + { 0x31d1, 0xf000 }, + { 0x31d2, 0x0000 }, + { 0x31d3, 0xf000 }, + { 0x31d4, 0x0000 }, + { 0x31d5, 0xf000 }, + { 0x31d6, 0x0000 }, + { 0x31d7, 0xf000 }, + { 0x31d8, 0x0000 }, + { 0x31d9, 0xf000 }, + { 0x31da, 0x0000 }, + { 0x31db, 0xf000 }, + { 0x31dc, 0x0000 }, + { 0x31dd, 0xf000 }, + { 0x31de, 0x0000 }, + { 0x31df, 0xf000 }, + { 0x31e0, 0x0000 }, + { 0x31e1, 0xf000 }, + { 0x31e2, 0x0000 }, + { 0x31e3, 0xf000 }, + { 0x31e4, 0x0000 }, + { 0x31e5, 0xf000 }, + { 0x31e6, 0x0000 }, + { 0x31e7, 0xf000 }, + { 0x31e8, 0x0000 }, + { 0x31e9, 0xf000 }, + { 0x31ea, 0x0000 }, + { 0x31eb, 0xf000 }, + { 0x31ec, 0x0000 }, + { 0x31ed, 0xf000 }, + { 0x31ee, 0x0000 }, + { 0x31ef, 0xf000 }, + { 0x31f0, 0x0000 }, + { 0x31f1, 0xf000 }, + { 0x31f2, 0x0000 }, + { 0x31f3, 0xf000 }, + { 0x31f4, 0x0000 }, + { 0x31f5, 0xf000 }, + { 0x31f6, 0x0000 }, + { 0x31f7, 0xf000 }, + { 0x31f8, 0x0000 }, + { 0x31f9, 0xf000 }, + { 0x31fa, 0x0000 }, + { 0x31fb, 0xf000 }, + { 0x31fc, 0x0000 }, + { 0x31fd, 0xf000 }, + { 0x31fe, 0x0000 }, + { 0x31ff, 0xf000 }, + { 0x024d, 0xff50 }, + { 0x0252, 0xff50 }, + { 0x0259, 0x0112 }, + { 0x025e, 0x0112 }, +}; + +static int wm5102_sysclk_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = w->codec; + struct arizona *arizona = dev_get_drvdata(codec->dev); + struct regmap *regmap = codec->control_data; + const struct reg_default *patch = NULL; + int i, patch_size; + + switch (arizona->rev) { + case 0: + patch = wm5102_sysclk_reva_patch; + patch_size = ARRAY_SIZE(wm5102_sysclk_reva_patch); + break; + } + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + if (patch) + for (i = 0; i < patch_size; i++) + regmap_write(regmap, patch[i].reg, + patch[i].def); + break; + + default: + break; + } + + return 0; +} + static const struct snd_kcontrol_new wm5102_snd_controls[] = { SOC_SINGLE("IN1 High Performance Switch", ARIZONA_IN1L_CONTROL, ARIZONA_IN1_OSR_SHIFT, 1, 0), @@ -297,7 +847,7 @@ static const struct snd_kcontrol_new wm5102_aec_loopback_mux = static const struct snd_soc_dapm_widget wm5102_dapm_widgets[] = { SND_SOC_DAPM_SUPPLY("SYSCLK", ARIZONA_SYSTEM_CLOCK_1, ARIZONA_SYSCLK_ENA_SHIFT, - 0, NULL, 0), + 0, wm5102_sysclk_ev, SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_SUPPLY("ASYNCCLK", ARIZONA_ASYNC_CLOCK_1, ARIZONA_ASYNC_CLK_ENA_SHIFT, 0, NULL, 0), SND_SOC_DAPM_SUPPLY("OPCLK", ARIZONA_OUTPUT_SYSTEM_CLOCK, -- cgit v0.10.2 From 1234471e2d11e4ee47f6de452dd8b8aeb09b45de Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 23 Oct 2012 22:44:49 +0900 Subject: perf header: Fix numa topology printing Andrew reported that the commit 7e94cfcc9d20 ("perf header: Use pre- processed session env when printing") regresses the header output. It was because of a missed string pointer calculation in the loop. Reported-by: Andrew Jones Tested-by: Andrew Jones Signed-off-by: Namhyung Kim Cc: Andrew Jones Link: http://lkml.kernel.org/r/1350999890-6920-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 7daad23..566b84c 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -1378,6 +1378,8 @@ static void print_numa_topology(struct perf_header *ph, int fd __maybe_unused, str = tmp + 1; fprintf(fp, "# node%u cpu list : %s\n", c, str); + + str += strlen(str) + 1; } return; error: -- cgit v0.10.2 From f787d9519fb10411f2948f5b9957a1669879ba84 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 23 Oct 2012 22:44:50 +0900 Subject: perf tools: Fix strbuf_addf() when the buffer needs to grow This was found during chasing down the header output regression. The strbuf_addf() was checking buffer length with a result of vscnprintf() which cannot be greater than that of strbuf_avail(). Since numa topology and pmu mapping info in header were converted to use strbuf, it sometimes caused uninteresting behaviors with the broken strbuf. Fix it by using vsnprintf() which returns desired output string length regardless of the available buffer size and grow the buffer if needed. Reported-by: Andrew Jones Tested-by: Andrew Jones Signed-off-by: Namhyung Kim Cc: Andrew Jones Link: http://lkml.kernel.org/r/1350999890-6920-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/util/strbuf.c b/tools/perf/util/strbuf.c index 2eeb51b..cfa9068 100644 --- a/tools/perf/util/strbuf.c +++ b/tools/perf/util/strbuf.c @@ -90,17 +90,17 @@ void strbuf_addf(struct strbuf *sb, const char *fmt, ...) if (!strbuf_avail(sb)) strbuf_grow(sb, 64); va_start(ap, fmt); - len = vscnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap); + len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap); va_end(ap); if (len < 0) - die("your vscnprintf is broken"); + die("your vsnprintf is broken"); if (len > strbuf_avail(sb)) { strbuf_grow(sb, len); va_start(ap, fmt); - len = vscnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap); + len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap); va_end(ap); if (len > strbuf_avail(sb)) { - die("this should not happen, your snprintf is broken"); + die("this should not happen, your vsnprintf is broken"); } } strbuf_setlen(sb, sb->len + len); -- cgit v0.10.2 From f6bc8c29383456b89ac1b6f1aa768d195670fb53 Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Mon, 29 Oct 2012 16:44:46 +0200 Subject: usb: otg: Fix build errors if USB_MUSB_OMAP2PLUS is selected as module TWL4030_USB & TWL6030_USB must depend on USB_MUSB_OMAP2PLUS in Kconfig else we get build errors with CONFIG_USB_MUSB_HDRC=m CONFIG_USB_MUSB_OMAP2PLUS=m CONFIG_TWL4030_USB=y CONFIG_TWL6030_USB=y LD init/built-in.o drivers/built-in.o: In function `twl4030_usb_irq': drivers/usb/otg/twl4030-usb.c:518: undefined reference to `omap_musb_mailbox' drivers/built-in.o: In function `twl4030_usb_phy_init': drivers/usb/otg/twl4030-usb.c:540: undefined reference to `omap_musb_mailbox' drivers/built-in.o: In function `twl6030_usb_irq': drivers/usb/otg/twl6030-usb.c:230: undefined reference to `omap_musb_mailbox' drivers/usb/otg/twl6030-usb.c:225: undefined reference to `omap_musb_mailbox' drivers/built-in.o: In function `twl6030_usbotg_irq': drivers/usb/otg/twl6030-usb.c:259: undefined reference to `omap_musb_mailbox' CC: Peter Meerwald Signed-off-by: Roger Quadros Signed-off-by: Felipe Balbi diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig index d8c8a42..6223062 100644 --- a/drivers/usb/otg/Kconfig +++ b/drivers/usb/otg/Kconfig @@ -58,7 +58,7 @@ config USB_ULPI_VIEWPORT config TWL4030_USB tristate "TWL4030 USB Transceiver Driver" - depends on TWL4030_CORE && REGULATOR_TWL4030 + depends on TWL4030_CORE && REGULATOR_TWL4030 && USB_MUSB_OMAP2PLUS select USB_OTG_UTILS help Enable this to support the USB OTG transceiver on TWL4030 @@ -68,7 +68,7 @@ config TWL4030_USB config TWL6030_USB tristate "TWL6030 USB Transceiver Driver" - depends on TWL4030_CORE && OMAP_USB2 + depends on TWL4030_CORE && OMAP_USB2 && USB_MUSB_OMAP2PLUS select USB_OTG_UTILS help Enable this to support the USB OTG transceiver on TWL6030 -- cgit v0.10.2 From b6514633bdc6a511f7c44b3ecb86d6071374239d Mon Sep 17 00:00:00 2001 From: Olaf Hering Date: Thu, 25 Oct 2012 11:00:24 +0200 Subject: x86: remove obsolete comment from asm/xen/hypervisor.h Signed-off-by: Olaf Hering Signed-off-by: Konrad Rzeszutek Wilk diff --git a/arch/x86/include/asm/xen/hypervisor.h b/arch/x86/include/asm/xen/hypervisor.h index 66d0fff..125f344 100644 --- a/arch/x86/include/asm/xen/hypervisor.h +++ b/arch/x86/include/asm/xen/hypervisor.h @@ -33,7 +33,6 @@ #ifndef _ASM_X86_XEN_HYPERVISOR_H #define _ASM_X86_XEN_HYPERVISOR_H -/* arch/i386/kernel/setup.c */ extern struct shared_info *HYPERVISOR_shared_info; extern struct start_info *xen_start_info; -- cgit v0.10.2 From a67baeb77375199bbd842fa308cb565164dd1f19 Mon Sep 17 00:00:00 2001 From: David Vrabel Date: Wed, 24 Oct 2012 12:39:02 +0100 Subject: xen/gntdev: don't leak memory from IOCTL_GNTDEV_MAP_GRANT_REF map->kmap_ops allocated in gntdev_alloc_map() wasn't freed by gntdev_put_map(). Add a gntdev_free_map() helper function to free everything allocated by gntdev_alloc_map(). Signed-off-by: David Vrabel Cc: stable@vger.kernel.org Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 610bfc6be..2e22df2 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -105,6 +105,21 @@ static void gntdev_print_maps(struct gntdev_priv *priv, #endif } +static void gntdev_free_map(struct grant_map *map) +{ + if (map == NULL) + return; + + if (map->pages) + free_xenballooned_pages(map->count, map->pages); + kfree(map->pages); + kfree(map->grants); + kfree(map->map_ops); + kfree(map->unmap_ops); + kfree(map->kmap_ops); + kfree(map); +} + static struct grant_map *gntdev_alloc_map(struct gntdev_priv *priv, int count) { struct grant_map *add; @@ -142,12 +157,7 @@ static struct grant_map *gntdev_alloc_map(struct gntdev_priv *priv, int count) return add; err: - kfree(add->pages); - kfree(add->grants); - kfree(add->map_ops); - kfree(add->unmap_ops); - kfree(add->kmap_ops); - kfree(add); + gntdev_free_map(add); return NULL; } @@ -198,17 +208,9 @@ static void gntdev_put_map(struct grant_map *map) evtchn_put(map->notify.event); } - if (map->pages) { - if (!use_ptemod) - unmap_grant_pages(map, 0, map->count); - - free_xenballooned_pages(map->count, map->pages); - } - kfree(map->pages); - kfree(map->grants); - kfree(map->map_ops); - kfree(map->unmap_ops); - kfree(map); + if (map->pages && !use_ptemod) + unmap_grant_pages(map, 0, map->count); + gntdev_free_map(map); } /* ------------------------------------------------------------------ */ -- cgit v0.10.2 From 01bc825f6311ba2878ae353418eee575d3051594 Mon Sep 17 00:00:00 2001 From: David Vrabel Date: Thu, 18 Oct 2012 11:03:37 +0100 Subject: xen-fbfront: handle backend CLOSED without CLOSING Backend drivers shouldn't transistion to CLOSED unless the frontend is CLOSED. If a backend does transition to CLOSED too soon then the frontend may not see the CLOSING state and will not properly shutdown. So, treat an unexpected backend CLOSED state the same as CLOSING. Acked-by: Florian Tobias Schandinat Signed-off-by: David Vrabel Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c index b7f5173..917bb56 100644 --- a/drivers/video/xen-fbfront.c +++ b/drivers/video/xen-fbfront.c @@ -641,7 +641,6 @@ static void xenfb_backend_changed(struct xenbus_device *dev, case XenbusStateReconfiguring: case XenbusStateReconfigured: case XenbusStateUnknown: - case XenbusStateClosed: break; case XenbusStateInitWait: @@ -670,6 +669,10 @@ InitWait: info->feature_resize = val; break; + case XenbusStateClosed: + if (dev->state == XenbusStateClosed) + break; + /* Missed the backend's CLOSING state -- fallthrough */ case XenbusStateClosing: xenbus_frontend_closed(dev); break; -- cgit v0.10.2 From 2ebb939ab9c6a2484866c5eae4184c83c2b21af8 Mon Sep 17 00:00:00 2001 From: David Vrabel Date: Thu, 18 Oct 2012 11:03:38 +0100 Subject: xen-kbdfront: handle backend CLOSED without CLOSING Backend drivers shouldn't transistion to CLOSED unless the frontend is CLOSED. If a backend does transition to CLOSED too soon then the frontend may not see the CLOSING state and will not properly shutdown. So, treat an unexpected backend CLOSED state the same as CLOSING. Acked-by: Dmitry Torokhov Signed-off-by: David Vrabel Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c index 02ca868..6f7d990 100644 --- a/drivers/input/misc/xen-kbdfront.c +++ b/drivers/input/misc/xen-kbdfront.c @@ -311,7 +311,6 @@ static void xenkbd_backend_changed(struct xenbus_device *dev, case XenbusStateReconfiguring: case XenbusStateReconfigured: case XenbusStateUnknown: - case XenbusStateClosed: break; case XenbusStateInitWait: @@ -350,6 +349,10 @@ InitWait: break; + case XenbusStateClosed: + if (dev->state == XenbusStateClosed) + break; + /* Missed the backend's CLOSING state -- fallthrough */ case XenbusStateClosing: xenbus_frontend_closed(dev); break; -- cgit v0.10.2 From 1bcaba51eba549748917f7d6eb41900ff9ee3d5f Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Wed, 17 Oct 2012 13:14:09 -0400 Subject: xen/xenbus: fix overflow check in xenbus_file_write() Acked-by: Ian Campbell Reported-by: Dan Carpenter Signed-off-by: Jan Beulich [v1: Rebased on upstream] Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c index 89f7625..ac72702 100644 --- a/drivers/xen/xenbus/xenbus_dev_frontend.c +++ b/drivers/xen/xenbus/xenbus_dev_frontend.c @@ -458,7 +458,7 @@ static ssize_t xenbus_file_write(struct file *filp, goto out; /* Can't write a xenbus message larger we can buffer */ - if ((len + u->len) > sizeof(u->u.buffer)) { + if (len > sizeof(u->u.buffer) - u->len) { /* On error, dump existing buffer */ u->len = 0; rc = -EINVAL; -- cgit v0.10.2 From c8d258a7b2b6633b79cad4464e8dfb3dc328d897 Mon Sep 17 00:00:00 2001 From: Stefano Stabellini Date: Wed, 24 Oct 2012 16:26:08 +0100 Subject: xen/arm: use the __HVC macro Use the new __HVC macro in hypercall.S. Signed-off-by: Stefano Stabellini Signed-off-by: Konrad Rzeszutek Wilk diff --git a/arch/arm/xen/hypercall.S b/arch/arm/xen/hypercall.S index 074f5ed..71f7239 100644 --- a/arch/arm/xen/hypercall.S +++ b/arch/arm/xen/hypercall.S @@ -48,20 +48,16 @@ #include #include +#include #include -/* HVC 0xEA1 */ -#ifdef CONFIG_THUMB2_KERNEL -#define xen_hvc .word 0xf7e08ea1 -#else -#define xen_hvc .word 0xe140ea71 -#endif +#define XEN_IMM 0xEA1 #define HYPERCALL_SIMPLE(hypercall) \ ENTRY(HYPERVISOR_##hypercall) \ mov r12, #__HYPERVISOR_##hypercall; \ - xen_hvc; \ + __HVC(XEN_IMM); \ mov pc, lr; \ ENDPROC(HYPERVISOR_##hypercall) @@ -76,7 +72,7 @@ ENTRY(HYPERVISOR_##hypercall) \ stmdb sp!, {r4} \ ldr r4, [sp, #4] \ mov r12, #__HYPERVISOR_##hypercall; \ - xen_hvc \ + __HVC(XEN_IMM); \ ldm sp!, {r4} \ mov pc, lr \ ENDPROC(HYPERVISOR_##hypercall) @@ -100,7 +96,7 @@ ENTRY(privcmd_call) mov r2, r3 ldr r3, [sp, #8] ldr r4, [sp, #4] - xen_hvc + __HVC(XEN_IMM) ldm sp!, {r4} mov pc, lr ENDPROC(privcmd_call); -- cgit v0.10.2 From 8e493ca1767d4951ed1322abaa74d6edbca29918 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Fri, 26 Oct 2012 18:44:20 +0200 Subject: USB: usb_wwan: fix bulk-urb allocation Make sure we do not allocate urbs if we do not have a bulk endpoint. Legacy code used incorrect assumption to test for bulk endpoints. Reported-by: Dan Carpenter Cc: stable Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c index 61a73ad..a3e9c09 100644 --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -455,9 +455,6 @@ static struct urb *usb_wwan_setup_urb(struct usb_serial_port *port, struct usb_serial *serial = port->serial; struct urb *urb; - if (endpoint == -1) - return NULL; /* endpoint not needed */ - urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */ if (urb == NULL) { dev_dbg(&serial->interface->dev, @@ -489,6 +486,9 @@ int usb_wwan_port_probe(struct usb_serial_port *port) init_usb_anchor(&portdata->delayed); for (i = 0; i < N_IN_URB; i++) { + if (!port->bulk_in_size) + break; + buffer = (u8 *)__get_free_page(GFP_KERNEL); if (!buffer) goto bail_out_error; @@ -502,8 +502,8 @@ int usb_wwan_port_probe(struct usb_serial_port *port) } for (i = 0; i < N_OUT_URB; i++) { - if (port->bulk_out_endpointAddress == -1) - continue; + if (!port->bulk_out_size) + break; buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL); if (!buffer) -- cgit v0.10.2 From bf7e1abe434ba9e22e8dc04a4cba4ab504b788b8 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Thu, 25 Oct 2012 09:51:39 +0200 Subject: rt2800: validate step value for temperature compensation Some hardware has correct (!= 0xff) value of tssi_bounds[4] in the EEPROM, but step is equal to 0xff. This results on ridiculous delta calculations and completely broke TX power settings. Reported-and-tested-by: Pavel Lucik Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka Acked-by: Ivo van Doorn Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 01dc889..59474ae 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -2449,7 +2449,7 @@ static int rt2800_get_gain_calibration_delta(struct rt2x00_dev *rt2x00dev) /* * Check if temperature compensation is supported. */ - if (tssi_bounds[4] == 0xff) + if (tssi_bounds[4] == 0xff || step == 0xff) return 0; /* -- cgit v0.10.2 From 6fe7cc71bbf3a0bc28c9cec3c00bc11e81344412 Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Mon, 29 Oct 2012 13:25:20 +0100 Subject: ath9k: Test for TID only in BlockAcks while checking tx status The ath9k xmit functions for AMPDUs can send frames as non-aggregate in case only one frame is currently available. The client will then answer using a normal Ack instead of a BlockAck. This acknowledgement has no TID stored and therefore the hardware is not able to provide us the corresponding TID. The TID set by the hardware in the tx status descriptor has to be seen as undefined and not as a valid TID value for normal acknowledgements. Doing otherwise results in a massive amount of retransmissions and stalls of connections. Users may experience low bandwidth and complete connection stalls in environments with transfers using multiple TIDs. This regression was introduced in b11b160defc48e4daa283f785192ea3a23a51f8e ("ath9k: validate the TID in the tx status information"). Signed-off-by: Sven Eckelmann Signed-off-by: Simon Wunderlich Cc: stable@vger.kernel.org Acked-by: Felix Fietkau Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 1ffca75..741918a 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -394,7 +394,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq, u16 seq_st = 0, acked_cnt = 0, txfail_cnt = 0, seq_first; u32 ba[WME_BA_BMP_SIZE >> 5]; int isaggr, txfail, txpending, sendbar = 0, needreset = 0, nbad = 0; - bool rc_update = true; + bool rc_update = true, isba; struct ieee80211_tx_rate rates[4]; struct ath_frame_info *fi; int nframes; @@ -438,13 +438,17 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq, tidno = ieee80211_get_qos_ctl(hdr)[0] & IEEE80211_QOS_CTL_TID_MASK; tid = ATH_AN_2_TID(an, tidno); seq_first = tid->seq_start; + isba = ts->ts_flags & ATH9K_TX_BA; /* * The hardware occasionally sends a tx status for the wrong TID. * In this case, the BA status cannot be considered valid and all * subframes need to be retransmitted + * + * Only BlockAcks have a TID and therefore normal Acks cannot be + * checked */ - if (tidno != ts->tid) + if (isba && tidno != ts->tid) txok = false; isaggr = bf_isaggr(bf); -- cgit v0.10.2 From d99e65bda806f49e192dd31e9b01959974dea3cd Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Mon, 29 Oct 2012 16:45:54 +0000 Subject: USB: fix build with XEN and EARLY_PRINTK_DBGP enabled but USB_SUPPORT disabled Since there's no possible caller of dbgp_external_startup() and dbgp_reset_prep() when !USB_EHCI_HCD, there's no point in building and exporting these functions in that case. This eliminates a build error under the conditions listed in the subject, introduced with the merge f1c6872e4980bc4078cfaead05f892b3d78dea64. Reported-by: Randy Dunlap Signed-off-by: Jan Beulich Cc: Stefano Stabellini Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c index e426ad6..4bfa78a 100644 --- a/drivers/usb/early/ehci-dbgp.c +++ b/drivers/usb/early/ehci-dbgp.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -614,12 +615,6 @@ err: return -ENODEV; } -int dbgp_external_startup(struct usb_hcd *hcd) -{ - return xen_dbgp_external_startup(hcd) ?: _dbgp_external_startup(); -} -EXPORT_SYMBOL_GPL(dbgp_external_startup); - static int ehci_reset_port(int port) { u32 portsc; @@ -979,6 +974,7 @@ struct console early_dbgp_console = { .index = -1, }; +#if IS_ENABLED(CONFIG_USB_EHCI_HCD) int dbgp_reset_prep(struct usb_hcd *hcd) { int ret = xen_dbgp_reset_prep(hcd); @@ -1007,6 +1003,13 @@ int dbgp_reset_prep(struct usb_hcd *hcd) } EXPORT_SYMBOL_GPL(dbgp_reset_prep); +int dbgp_external_startup(struct usb_hcd *hcd) +{ + return xen_dbgp_external_startup(hcd) ?: _dbgp_external_startup(); +} +EXPORT_SYMBOL_GPL(dbgp_external_startup); +#endif /* USB_EHCI_HCD */ + #ifdef CONFIG_KGDB static char kgdbdbgp_buf[DBGP_MAX_PACKET]; -- cgit v0.10.2 From 322337b8fbd8c392246529d5db924820fc0c7381 Mon Sep 17 00:00:00 2001 From: Pritesh Raithatha Date: Tue, 30 Oct 2012 15:37:09 +0530 Subject: ARM: dt: tegra: fix length of pad control and mux registers The reg property contains not . Fix the length values to be length not last_offset. Cc: stable@vger.kernel.org Signed-off-by: Pritesh Raithatha Signed-off-by: Stephen Warren diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi index b1497c7..df7f227 100644 --- a/arch/arm/boot/dts/tegra30.dtsi +++ b/arch/arm/boot/dts/tegra30.dtsi @@ -73,8 +73,8 @@ pinmux: pinmux { compatible = "nvidia,tegra30-pinmux"; - reg = <0x70000868 0xd0 /* Pad control registers */ - 0x70003000 0x3e0>; /* Mux registers */ + reg = <0x70000868 0xd4 /* Pad control registers */ + 0x70003000 0x3e4>; /* Mux registers */ }; serial@70006000 { -- cgit v0.10.2 From 8fcff5f13773aa3898df1d13a1615d468079cb15 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Sat, 27 Oct 2012 15:28:58 +0200 Subject: GPIO: mvebu-gpio: Don't initialize the mask_cache Due to the SMP nature of some of the chips, which have per CPU registers, the driver does not use the generic irq_gc_mask_set_bit() & irq_gc_mask_clr_bit() functions, which only support a single register. The driver has its own implementation of these functions, which can pick the correct register depending on the CPU being used. The functions do however use the gc->mask_cache value. The call to irq_setup_generic_chip() was passing IRQ_GC_INIT_MASK_CACHE, which caused the gc->mask_cache to be initialized to the contents of some random register. This resulted in unexpected interrupts been delivered from random GPIO lines. Signed-off-by: Andrew Lunn Tested-by: Jamie Lentin Acked-by: Thomas Petazzoni Tested-by: Michael Walle Signed-off-by: Linus Walleij diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c index 1bb43e3..fec421f 100644 --- a/drivers/gpio/gpio-mvebu.c +++ b/drivers/gpio/gpio-mvebu.c @@ -643,7 +643,7 @@ static int __devinit mvebu_gpio_probe(struct platform_device *pdev) ct->handler = handle_edge_irq; ct->chip.name = mvchip->chip.label; - irq_setup_generic_chip(gc, IRQ_MSK(ngpios), IRQ_GC_INIT_MASK_CACHE, + irq_setup_generic_chip(gc, IRQ_MSK(ngpios), 0, IRQ_NOREQUEST, IRQ_LEVEL | IRQ_NOPROBE); /* Setup irq domain on top of the generic chip. */ -- cgit v0.10.2 From 85b97637bb40a9f486459dd254598759af9c3d50 Mon Sep 17 00:00:00 2001 From: Tang Chen Date: Mon, 29 Oct 2012 11:01:50 +0800 Subject: x86/mce: Do not change worker's running cpu in cmci_rediscover(). cmci_rediscover() used set_cpus_allowed_ptr() to change the current process's running cpu, and migrate itself to the dest cpu. But worker processes are not allowed to be migrated. If current is a worker, the worker will be migrated to another cpu, but the corresponding worker_pool is still on the original cpu. In this case, the following BUG_ON in try_to_wake_up_local() will be triggered: BUG_ON(rq != this_rq()); This will cause the kernel panic. The call trace is like the following: [ 6155.451107] ------------[ cut here ]------------ [ 6155.452019] kernel BUG at kernel/sched/core.c:1654! ...... [ 6155.452019] RIP: 0010:[] [] try_to_wake_up_local+0x115/0x130 ...... [ 6155.452019] Call Trace: [ 6155.452019] [] __schedule+0x764/0x880 [ 6155.452019] [] schedule+0x29/0x70 [ 6155.452019] [] schedule_timeout+0x235/0x2d0 [ 6155.452019] [] ? mark_held_locks+0x8d/0x140 [ 6155.452019] [] ? __lock_release+0x133/0x1a0 [ 6155.452019] [] ? _raw_spin_unlock_irq+0x30/0x50 [ 6155.452019] [] ? trace_hardirqs_on_caller+0x105/0x190 [ 6155.452019] [] wait_for_common+0x12b/0x180 [ 6155.452019] [] ? try_to_wake_up+0x2f0/0x2f0 [ 6155.452019] [] wait_for_completion+0x1d/0x20 [ 6155.452019] [] stop_one_cpu+0x8a/0xc0 [ 6155.452019] [] ? __migrate_task+0x1a0/0x1a0 [ 6155.452019] [] ? complete+0x28/0x60 [ 6155.452019] [] set_cpus_allowed_ptr+0x128/0x130 [ 6155.452019] [] cmci_rediscover+0xf5/0x140 [ 6155.452019] [] mce_cpu_callback+0x18d/0x19d [ 6155.452019] [] notifier_call_chain+0x67/0x150 [ 6155.452019] [] __raw_notifier_call_chain+0xe/0x10 [ 6155.452019] [] __cpu_notify+0x20/0x40 [ 6155.452019] [] cpu_notify_nofail+0x15/0x30 [ 6155.452019] [] _cpu_down+0x262/0x2e0 [ 6155.452019] [] cpu_down+0x36/0x50 [ 6155.452019] [] acpi_processor_remove+0x50/0x11e [ 6155.452019] [] acpi_device_remove+0x90/0xb2 [ 6155.452019] [] __device_release_driver+0x7c/0xf0 [ 6155.452019] [] device_release_driver+0x2f/0x50 [ 6155.452019] [] acpi_bus_remove+0x32/0x6d [ 6155.452019] [] acpi_bus_trim+0x87/0xee [ 6155.452019] [] acpi_bus_hot_remove_device+0x88/0x16b [ 6155.452019] [] acpi_os_execute_deferred+0x27/0x34 [ 6155.452019] [] process_one_work+0x219/0x680 [ 6155.452019] [] ? process_one_work+0x1b8/0x680 [ 6155.452019] [] ? acpi_os_wait_events_complete+0x23/0x23 [ 6155.452019] [] worker_thread+0x12e/0x320 [ 6155.452019] [] ? manage_workers+0x110/0x110 [ 6155.452019] [] kthread+0xc6/0xd0 [ 6155.452019] [] kernel_thread_helper+0x4/0x10 [ 6155.452019] [] ? retint_restore_args+0x13/0x13 [ 6155.452019] [] ? __init_kthread_worker+0x70/0x70 [ 6155.452019] [] ? gs_change+0x13/0x13 This patch removes the set_cpus_allowed_ptr() call, and put the cmci rediscover jobs onto all the other cpus using system_wq. This could bring some delay for the jobs. Signed-off-by: Tang Chen Signed-off-by: Miao Xie Signed-off-by: Tony Luck diff --git a/arch/x86/kernel/cpu/mcheck/mce_intel.c b/arch/x86/kernel/cpu/mcheck/mce_intel.c index 5f88abf..4f9a3cb 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_intel.c +++ b/arch/x86/kernel/cpu/mcheck/mce_intel.c @@ -285,34 +285,39 @@ void cmci_clear(void) raw_spin_unlock_irqrestore(&cmci_discover_lock, flags); } +static long cmci_rediscover_work_func(void *arg) +{ + int banks; + + /* Recheck banks in case CPUs don't all have the same */ + if (cmci_supported(&banks)) + cmci_discover(banks); + + return 0; +} + /* * After a CPU went down cycle through all the others and rediscover * Must run in process context. */ void cmci_rediscover(int dying) { - int banks; - int cpu; - cpumask_var_t old; + int cpu, banks; if (!cmci_supported(&banks)) return; - if (!alloc_cpumask_var(&old, GFP_KERNEL)) - return; - cpumask_copy(old, ¤t->cpus_allowed); for_each_online_cpu(cpu) { if (cpu == dying) continue; - if (set_cpus_allowed_ptr(current, cpumask_of(cpu))) + + if (cpu == smp_processor_id()) { + cmci_rediscover_work_func(NULL); continue; - /* Recheck banks in case CPUs don't all have the same */ - if (cmci_supported(&banks)) - cmci_discover(banks); - } + } - set_cpus_allowed_ptr(current, old); - free_cpumask_var(old); + work_on_cpu(cpu, cmci_rediscover_work_func, NULL); + } } /* -- cgit v0.10.2 From c1c92b6a5b606e39e2181ac8eee2a0ca847542dc Mon Sep 17 00:00:00 2001 From: Jesse Gross Date: Tue, 30 Oct 2012 15:48:48 -0700 Subject: openvswitch: Print device when warning about over MTU packets. If an attempt is made to transmit a packet that is over the device's MTU then we log it using the datapath's name. However, it is much more helpful to use the device name instead. Signed-off-by: Jesse Gross diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c index 3c1e58b..a903348 100644 --- a/net/openvswitch/vport-netdev.c +++ b/net/openvswitch/vport-netdev.c @@ -158,7 +158,7 @@ static int netdev_send(struct vport *vport, struct sk_buff *skb) if (unlikely(packet_length(skb) > mtu && !skb_is_gso(skb))) { net_warn_ratelimited("%s: dropped over-mtu packet: %d > %d\n", - ovs_dp_name(vport->dp), + netdev_vport->dev->name, packet_length(skb), mtu); goto error; } -- cgit v0.10.2 From d04d382980c86bdee9960c3eb157a73f8ed230cc Mon Sep 17 00:00:00 2001 From: Mehak Mahajan Date: Tue, 30 Oct 2012 15:50:28 -0700 Subject: openvswitch: Store flow key len if ARP opcode is not request or reply. We currently only extract the ARP payload if the opcode indicates that it is a request or reply. However, we also only set the key length in these situations even though it should still be possible to match on the opcode. There's no real reason to restrict the ARP opcode since all have the same format so this simply removes the check. Signed-off-by: Mehak Mahajan Signed-off-by: Jesse Gross diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c index 98c7063..733cbf4 100644 --- a/net/openvswitch/flow.c +++ b/net/openvswitch/flow.c @@ -702,15 +702,11 @@ int ovs_flow_extract(struct sk_buff *skb, u16 in_port, struct sw_flow_key *key, /* We only match on the lower 8 bits of the opcode. */ if (ntohs(arp->ar_op) <= 0xff) key->ip.proto = ntohs(arp->ar_op); - - if (key->ip.proto == ARPOP_REQUEST - || key->ip.proto == ARPOP_REPLY) { - memcpy(&key->ipv4.addr.src, arp->ar_sip, sizeof(key->ipv4.addr.src)); - memcpy(&key->ipv4.addr.dst, arp->ar_tip, sizeof(key->ipv4.addr.dst)); - memcpy(key->ipv4.arp.sha, arp->ar_sha, ETH_ALEN); - memcpy(key->ipv4.arp.tha, arp->ar_tha, ETH_ALEN); - key_len = SW_FLOW_KEY_OFFSET(ipv4.arp); - } + memcpy(&key->ipv4.addr.src, arp->ar_sip, sizeof(key->ipv4.addr.src)); + memcpy(&key->ipv4.addr.dst, arp->ar_tip, sizeof(key->ipv4.addr.dst)); + memcpy(key->ipv4.arp.sha, arp->ar_sha, ETH_ALEN); + memcpy(key->ipv4.arp.tha, arp->ar_tha, ETH_ALEN); + key_len = SW_FLOW_KEY_OFFSET(ipv4.arp); } } else if (key->eth.type == htons(ETH_P_IPV6)) { int nh_len; /* IPv6 Header + Extensions */ -- cgit v0.10.2 From 02b898f2f04e418094f0093a3ad0b415bcdbe8eb Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 31 Oct 2012 11:42:03 +1100 Subject: md/raid1: Fix assembling of arrays containing Replacements. setup_conf in raid1.c uses conf->raid_disks before assigning a value. It is used when including 'Replacement' devices. The consequence is that assembling an array which contains a replacement will misbehave and either not include the replacement, or not include the device being replaced. Though this doesn't lead directly to data corruption, it could lead to reduced data safety. So use mddev->raid_disks, which is initialised, instead. Bug was introduced by commit c19d57980b38a5bb613a898937a1cf85f422fb9b md/raid1: recognise replacements when assembling arrays. in 3.3, so fix is suitable for 3.3.y thru 3.6.y. Cc: stable@vger.kernel.org Signed-off-by: NeilBrown diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 8034fbd..636bae0 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -2710,7 +2710,7 @@ static struct r1conf *setup_conf(struct mddev *mddev) || disk_idx < 0) continue; if (test_bit(Replacement, &rdev->flags)) - disk = conf->mirrors + conf->raid_disks + disk_idx; + disk = conf->mirrors + mddev->raid_disks + disk_idx; else disk = conf->mirrors + disk_idx; -- cgit v0.10.2 From ed30be077e705e0dff53bfc51d23feb8aeeab78f Mon Sep 17 00:00:00 2001 From: Jonathan Brassow Date: Wed, 31 Oct 2012 11:42:30 +1100 Subject: MD RAID10: Fix oops when creating RAID10 arrays via dm-raid.c Commit 2863b9eb didn't take into account the changes to add TRIM support to RAID10 (commit 532a2a3fb). That is, when using dm-raid.c to create the RAID10 arrays, there is no mddev->gendisk or mddev->queue. The code added to support TRIM simply assumes that mddev->queue is available without checking. The result is an oops any time dm-raid.c attempts to create a RAID10 device. Signed-off-by: Jonathan Brassow Signed-off-by: NeilBrown diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 906ccbd..d1295af 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1783,7 +1783,7 @@ static int raid10_add_disk(struct mddev *mddev, struct md_rdev *rdev) clear_bit(Unmerged, &rdev->flags); } md_integrity_add_rdev(rdev, mddev); - if (blk_queue_discard(bdev_get_queue(rdev->bdev))) + if (mddev->queue && blk_queue_discard(bdev_get_queue(rdev->bdev))) queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mddev->queue); print_conf(conf); @@ -3613,11 +3613,14 @@ static int run(struct mddev *mddev) discard_supported = true; } - if (discard_supported) - queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mddev->queue); - else - queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, mddev->queue); - + if (mddev->queue) { + if (discard_supported) + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, + mddev->queue); + else + queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, + mddev->queue); + } /* need to check that every block has at least one working mirror */ if (!enough(conf, -1)) { printk(KERN_ERR "md/raid10:%s: not enough operational mirrors.\n", -- cgit v0.10.2 From cee59f15a60cc6269a25e3f6fbf1a577d6ab8115 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 29 Oct 2012 09:03:07 +1000 Subject: drm/nouveau: silence modesetting spam on pre-gf8 chipsets Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/nv04_dac.c b/drivers/gpu/drm/nouveau/nv04_dac.c index 347a3bd..64f7020 100644 --- a/drivers/gpu/drm/nouveau/nv04_dac.c +++ b/drivers/gpu/drm/nouveau/nv04_dac.c @@ -220,7 +220,7 @@ out: NVWriteVgaCrtc(dev, 0, NV_CIO_CR_MODE_INDEX, saved_cr_mode); if (blue == 0x18) { - NV_INFO(drm, "Load detected on head A\n"); + NV_DEBUG(drm, "Load detected on head A\n"); return connector_status_connected; } @@ -338,8 +338,8 @@ nv17_dac_detect(struct drm_encoder *encoder, struct drm_connector *connector) if (nv17_dac_sample_load(encoder) & NV_PRAMDAC_TEST_CONTROL_SENSEB_ALLHI) { - NV_INFO(drm, "Load detected on output %c\n", - '@' + ffs(dcb->or)); + NV_DEBUG(drm, "Load detected on output %c\n", + '@' + ffs(dcb->or)); return connector_status_connected; } else { return connector_status_disconnected; @@ -413,9 +413,9 @@ static void nv04_dac_commit(struct drm_encoder *encoder) helper->dpms(encoder, DRM_MODE_DPMS_ON); - NV_INFO(drm, "Output %s is running on CRTC %d using output %c\n", - drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base), - nv_crtc->index, '@' + ffs(nv_encoder->dcb->or)); + NV_DEBUG(drm, "Output %s is running on CRTC %d using output %c\n", + drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base), + nv_crtc->index, '@' + ffs(nv_encoder->dcb->or)); } void nv04_dac_update_dacclk(struct drm_encoder *encoder, bool enable) @@ -461,8 +461,8 @@ static void nv04_dac_dpms(struct drm_encoder *encoder, int mode) return; nv_encoder->last_dpms = mode; - NV_INFO(drm, "Setting dpms mode %d on vga encoder (output %d)\n", - mode, nv_encoder->dcb->index); + NV_DEBUG(drm, "Setting dpms mode %d on vga encoder (output %d)\n", + mode, nv_encoder->dcb->index); nv04_dac_update_dacclk(encoder, mode == DRM_MODE_DPMS_ON); } diff --git a/drivers/gpu/drm/nouveau/nv04_dfp.c b/drivers/gpu/drm/nouveau/nv04_dfp.c index da55d76..184cdf8 100644 --- a/drivers/gpu/drm/nouveau/nv04_dfp.c +++ b/drivers/gpu/drm/nouveau/nv04_dfp.c @@ -476,9 +476,9 @@ static void nv04_dfp_commit(struct drm_encoder *encoder) helper->dpms(encoder, DRM_MODE_DPMS_ON); - NV_INFO(drm, "Output %s is running on CRTC %d using output %c\n", - drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base), - nv_crtc->index, '@' + ffs(nv_encoder->dcb->or)); + NV_DEBUG(drm, "Output %s is running on CRTC %d using output %c\n", + drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base), + nv_crtc->index, '@' + ffs(nv_encoder->dcb->or)); } static void nv04_dfp_update_backlight(struct drm_encoder *encoder, int mode) @@ -520,8 +520,8 @@ static void nv04_lvds_dpms(struct drm_encoder *encoder, int mode) return; nv_encoder->last_dpms = mode; - NV_INFO(drm, "Setting dpms mode %d on lvds encoder (output %d)\n", - mode, nv_encoder->dcb->index); + NV_DEBUG(drm, "Setting dpms mode %d on lvds encoder (output %d)\n", + mode, nv_encoder->dcb->index); if (was_powersaving && is_powersaving_dpms(mode)) return; @@ -565,8 +565,8 @@ static void nv04_tmds_dpms(struct drm_encoder *encoder, int mode) return; nv_encoder->last_dpms = mode; - NV_INFO(drm, "Setting dpms mode %d on tmds encoder (output %d)\n", - mode, nv_encoder->dcb->index); + NV_DEBUG(drm, "Setting dpms mode %d on tmds encoder (output %d)\n", + mode, nv_encoder->dcb->index); nv04_dfp_update_backlight(encoder, mode); nv04_dfp_update_fp_control(encoder, mode); diff --git a/drivers/gpu/drm/nouveau/nv04_tv.c b/drivers/gpu/drm/nouveau/nv04_tv.c index 099fbed..62e826a 100644 --- a/drivers/gpu/drm/nouveau/nv04_tv.c +++ b/drivers/gpu/drm/nouveau/nv04_tv.c @@ -75,8 +75,8 @@ static void nv04_tv_dpms(struct drm_encoder *encoder, int mode) struct nv04_mode_state *state = &nv04_display(dev)->mode_reg; uint8_t crtc1A; - NV_INFO(drm, "Setting dpms mode %d on TV encoder (output %d)\n", - mode, nv_encoder->dcb->index); + NV_DEBUG(drm, "Setting dpms mode %d on TV encoder (output %d)\n", + mode, nv_encoder->dcb->index); state->pllsel &= ~(PLLSEL_TV_CRTC1_MASK | PLLSEL_TV_CRTC2_MASK); @@ -167,9 +167,8 @@ static void nv04_tv_commit(struct drm_encoder *encoder) helper->dpms(encoder, DRM_MODE_DPMS_ON); - NV_INFO(drm, "Output %s is running on CRTC %d using output %c\n", - drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base), nv_crtc->index, - '@' + ffs(nv_encoder->dcb->or)); + NV_DEBUG(drm, "Output %s is running on CRTC %d using output %c\n", + drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base), nv_crtc->index, '@' + ffs(nv_encoder->dcb->or)); } static void nv04_tv_destroy(struct drm_encoder *encoder) -- cgit v0.10.2 From 1249ac592a2f995fef977be33abf077bdb57b3aa Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 30 Oct 2012 15:07:58 +1000 Subject: drm/nouveau/i2c: fix typo when checking nvio i2c port validity Reported-by: Mathieu Chouquet-Stringer Tested-by: Mathieu Chouquet-Stringer Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c index 3d2c883..dbfc2abf 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c @@ -292,7 +292,7 @@ nouveau_i2c_ctor(struct nouveau_object *parent, struct nouveau_object *engine, case DCB_I2C_NVIO_BIT: port->drive = info.drive & 0x0f; if (device->card_type < NV_D0) { - if (info.drive >= ARRAY_SIZE(nv50_i2c_port)) + if (port->drive >= ARRAY_SIZE(nv50_i2c_port)) break; port->drive = nv50_i2c_port[port->drive]; port->sense = port->drive; -- cgit v0.10.2 From a7dbf00433fa9dc6f4a3828a17d56a9df2bd06b1 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Wed, 31 Oct 2012 11:19:40 +1000 Subject: drm/nouveau: allow creation of zero-sized mm Useful for places where a given chipset may or may not have a given resource, and we want to avoid having to spray checks for the mm's existance around everywhere. Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/core/mm.c b/drivers/gpu/drm/nouveau/core/core/mm.c index 4d62064..a6d3cd6 100644 --- a/drivers/gpu/drm/nouveau/core/core/mm.c +++ b/drivers/gpu/drm/nouveau/core/core/mm.c @@ -218,13 +218,16 @@ nouveau_mm_init(struct nouveau_mm *mm, u32 offset, u32 length, u32 block) node = kzalloc(sizeof(*node), GFP_KERNEL); if (!node) return -ENOMEM; - node->offset = roundup(offset, mm->block_size); - node->length = rounddown(offset + length, mm->block_size) - node->offset; + + if (length) { + node->offset = roundup(offset, mm->block_size); + node->length = rounddown(offset + length, mm->block_size); + node->length -= node->offset; + } list_add_tail(&node->nl_entry, &mm->nodes); list_add_tail(&node->fl_entry, &mm->free); mm->heap_nodes++; - mm->heap_size += length; return 0; } diff --git a/drivers/gpu/drm/nouveau/core/include/core/mm.h b/drivers/gpu/drm/nouveau/core/include/core/mm.h index 9ee9bf4..975137b 100644 --- a/drivers/gpu/drm/nouveau/core/include/core/mm.h +++ b/drivers/gpu/drm/nouveau/core/include/core/mm.h @@ -19,7 +19,6 @@ struct nouveau_mm { u32 block_size; int heap_nodes; - u32 heap_size; }; int nouveau_mm_init(struct nouveau_mm *, u32 offset, u32 length, u32 block); -- cgit v0.10.2 From 5cad16acd25b16681a060d28d10eeacf98d07701 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Wed, 31 Oct 2012 10:51:00 +1000 Subject: drm/nv50/fb: prevent oops on chipsets without compression tags Unconditionally create the tagram mm, even if there's zero tags. Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c index 27fb1af..5f570806 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c @@ -219,13 +219,11 @@ nv50_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, ((priv->base.ram.size & 0x000000ff) << 32); tags = nv_rd32(priv, 0x100320); - if (tags) { - ret = nouveau_mm_init(&priv->base.tags, 0, tags, 1); - if (ret) - return ret; + ret = nouveau_mm_init(&priv->base.tags, 0, tags, 1); + if (ret) + return ret; - nv_debug(priv, "%d compression tags\n", tags); - } + nv_debug(priv, "%d compression tags\n", tags); size = (priv->base.ram.size >> 12) - rsvd_head - rsvd_tail; switch (device->chipset) { -- cgit v0.10.2 From 9430738d80223a1cd791a2baa74fa170d3df1262 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Wed, 31 Oct 2012 12:11:15 +1000 Subject: drm/nouveau: resurrect headless mode since rework Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index d2f8ffe..0185837 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -360,23 +360,26 @@ nouveau_display_create(struct drm_device *dev) drm_kms_helper_poll_init(dev); drm_kms_helper_poll_disable(dev); - if (nv_device(drm->device)->card_type < NV_50) - ret = nv04_display_create(dev); - else - if (nv_device(drm->device)->card_type < NV_D0) - ret = nv50_display_create(dev); - else - ret = nvd0_display_create(dev); - if (ret) - goto disp_create_err; - - if (dev->mode_config.num_crtc) { - ret = drm_vblank_init(dev, dev->mode_config.num_crtc); + if (nouveau_modeset == 1) { + if (nv_device(drm->device)->card_type < NV_50) + ret = nv04_display_create(dev); + else + if (nv_device(drm->device)->card_type < NV_D0) + ret = nv50_display_create(dev); + else + ret = nvd0_display_create(dev); if (ret) - goto vblank_err; + goto disp_create_err; + + if (dev->mode_config.num_crtc) { + ret = drm_vblank_init(dev, dev->mode_config.num_crtc); + if (ret) + goto vblank_err; + } + + nouveau_backlight_init(dev); } - nouveau_backlight_init(dev); return 0; vblank_err: @@ -395,7 +398,8 @@ nouveau_display_destroy(struct drm_device *dev) nouveau_backlight_exit(dev); drm_vblank_cleanup(dev); - disp->dtor(dev); + if (disp->dtor) + disp->dtor(dev); drm_kms_helper_poll_fini(dev); drm_mode_config_cleanup(dev); diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index ccae8c2..9cc83f1 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -63,8 +63,9 @@ MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration"); static int nouveau_noaccel = 0; module_param_named(noaccel, nouveau_noaccel, int, 0400); -MODULE_PARM_DESC(modeset, "enable driver"); -static int nouveau_modeset = -1; +MODULE_PARM_DESC(modeset, "enable driver (default: auto, " + "0 = disabled, 1 = enabled, 2 = headless)"); +int nouveau_modeset = -1; module_param_named(modeset, nouveau_modeset, int, 0400); static struct drm_driver driver; @@ -363,7 +364,8 @@ nouveau_drm_unload(struct drm_device *dev) nouveau_pm_fini(dev); - nouveau_display_fini(dev); + if (dev->mode_config.num_crtc) + nouveau_display_fini(dev); nouveau_display_destroy(dev); nouveau_irq_fini(dev); @@ -403,13 +405,15 @@ nouveau_drm_suspend(struct pci_dev *pdev, pm_message_t pm_state) pm_state.event == PM_EVENT_PRETHAW) return 0; - NV_INFO(drm, "suspending fbcon...\n"); - nouveau_fbcon_set_suspend(dev, 1); + if (dev->mode_config.num_crtc) { + NV_INFO(drm, "suspending fbcon...\n"); + nouveau_fbcon_set_suspend(dev, 1); - NV_INFO(drm, "suspending display...\n"); - ret = nouveau_display_suspend(dev); - if (ret) - return ret; + NV_INFO(drm, "suspending display...\n"); + ret = nouveau_display_suspend(dev); + if (ret) + return ret; + } NV_INFO(drm, "evicting buffers...\n"); ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM); @@ -445,8 +449,10 @@ fail_client: nouveau_client_init(&cli->base); } - NV_INFO(drm, "resuming display...\n"); - nouveau_display_resume(dev); + if (dev->mode_config.num_crtc) { + NV_INFO(drm, "resuming display...\n"); + nouveau_display_resume(dev); + } return ret; } @@ -486,8 +492,10 @@ nouveau_drm_resume(struct pci_dev *pdev) nouveau_irq_postinstall(dev); nouveau_pm_resume(dev); - NV_INFO(drm, "resuming display...\n"); - nouveau_display_resume(dev); + if (dev->mode_config.num_crtc) { + NV_INFO(drm, "resuming display...\n"); + nouveau_display_resume(dev); + } return 0; } diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.h b/drivers/gpu/drm/nouveau/nouveau_drm.h index 8194712..a101699 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.h +++ b/drivers/gpu/drm/nouveau/nouveau_drm.h @@ -141,4 +141,6 @@ int nouveau_drm_resume(struct pci_dev *); nv_info((cli), fmt, ##args); \ } while (0) +extern int nouveau_modeset; + #endif diff --git a/drivers/gpu/drm/nouveau/nouveau_irq.c b/drivers/gpu/drm/nouveau/nouveau_irq.c index 9ca8afd..1d8cb50 100644 --- a/drivers/gpu/drm/nouveau/nouveau_irq.c +++ b/drivers/gpu/drm/nouveau/nouveau_irq.c @@ -61,13 +61,15 @@ nouveau_irq_handler(DRM_IRQ_ARGS) nv_subdev(pmc)->intr(nv_subdev(pmc)); - if (device->card_type >= NV_D0) { - if (nv_rd32(device, 0x000100) & 0x04000000) - nvd0_display_intr(dev); - } else - if (device->card_type >= NV_50) { - if (nv_rd32(device, 0x000100) & 0x04000000) - nv50_display_intr(dev); + if (dev->mode_config.num_crtc) { + if (device->card_type >= NV_D0) { + if (nv_rd32(device, 0x000100) & 0x04000000) + nvd0_display_intr(dev); + } else + if (device->card_type >= NV_50) { + if (nv_rd32(device, 0x000100) & 0x04000000) + nv50_display_intr(dev); + } } return IRQ_HANDLED; -- cgit v0.10.2 From 59ef28b1f14899b10d6b2682c7057ca00a9a3f47 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 25 Oct 2012 10:49:25 +1030 Subject: module: fix out-by-one error in kallsyms Masaki found and patched a kallsyms issue: the last symbol in a module's symtab wasn't transferred. This is because we manually copy the zero'th entry (which is always empty) then copy the rest in a loop starting at 1, though from src[0]. His fix was minimal, I prefer to rewrite the loops in more standard form. There are two loops: one to get the size, and one to copy. Make these identical: always count entry 0 and any defined symbol in an allocated non-init section. This bug exists since the following commit was introduced. module: reduce symbol table for loaded modules (v2) commit: 4a4962263f07d14660849ec134ee42b63e95ea9a LKML: http://lkml.org/lkml/2012/10/24/27 Reported-by: Masaki Kimura Cc: stable@kernel.org diff --git a/kernel/module.c b/kernel/module.c index 6085f5e..6e48c3a 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2293,12 +2293,17 @@ static void layout_symtab(struct module *mod, struct load_info *info) src = (void *)info->hdr + symsect->sh_offset; nsrc = symsect->sh_size / sizeof(*src); + /* strtab always starts with a nul, so offset 0 is the empty string. */ + strtab_size = 1; + /* Compute total space required for the core symbols' strtab. */ - for (ndst = i = strtab_size = 1; i < nsrc; ++i, ++src) - if (is_core_symbol(src, info->sechdrs, info->hdr->e_shnum)) { - strtab_size += strlen(&info->strtab[src->st_name]) + 1; + for (ndst = i = 0; i < nsrc; i++) { + if (i == 0 || + is_core_symbol(src+i, info->sechdrs, info->hdr->e_shnum)) { + strtab_size += strlen(&info->strtab[src[i].st_name])+1; ndst++; } + } /* Append room for core symbols at end of core part. */ info->symoffs = ALIGN(mod->core_size, symsect->sh_addralign ?: 1); @@ -2332,15 +2337,15 @@ static void add_kallsyms(struct module *mod, const struct load_info *info) mod->core_symtab = dst = mod->module_core + info->symoffs; mod->core_strtab = s = mod->module_core + info->stroffs; src = mod->symtab; - *dst = *src; *s++ = 0; - for (ndst = i = 1; i < mod->num_symtab; ++i, ++src) { - if (!is_core_symbol(src, info->sechdrs, info->hdr->e_shnum)) - continue; - - dst[ndst] = *src; - dst[ndst++].st_name = s - mod->core_strtab; - s += strlcpy(s, &mod->strtab[src->st_name], KSYM_NAME_LEN) + 1; + for (ndst = i = 0; i < mod->num_symtab; i++) { + if (i == 0 || + is_core_symbol(src+i, info->sechdrs, info->hdr->e_shnum)) { + dst[ndst] = src[i]; + dst[ndst++].st_name = s - mod->core_strtab; + s += strlcpy(s, &mod->strtab[src[i].st_name], + KSYM_NAME_LEN) + 1; + } } mod->core_num_syms = ndst; } -- cgit v0.10.2 From e412e95a268fa8544858ebfe066826b290430d51 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Wed, 31 Oct 2012 12:16:06 +1000 Subject: drm/nouveau: headless mode by default if pci class != vga display This is to prevent nouveau from taking over the console on headless boards such as Tesla. Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 0185837..86124b1 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -290,6 +290,7 @@ nouveau_display_create(struct drm_device *dev) struct nouveau_drm *drm = nouveau_drm(dev); struct nouveau_disp *pdisp = nouveau_disp(drm->device); struct nouveau_display *disp; + u32 pclass = dev->pdev->class >> 8; int ret, gen; disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL); @@ -360,7 +361,8 @@ nouveau_display_create(struct drm_device *dev) drm_kms_helper_poll_init(dev); drm_kms_helper_poll_disable(dev); - if (nouveau_modeset == 1) { + if (nouveau_modeset == 1 || + (nouveau_modeset < 0 && pclass == PCI_CLASS_DISPLAY_VGA)) { if (nv_device(drm->device)->card_type < NV_50) ret = nv04_display_create(dev); else diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 9cc83f1..0910125 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -670,9 +670,7 @@ nouveau_drm_init(void) #ifdef CONFIG_VGA_CONSOLE if (vgacon_text_force()) nouveau_modeset = 0; - else #endif - nouveau_modeset = 1; } if (!nouveau_modeset) -- cgit v0.10.2 From 08f05c49749ee655bef921d12160960a273aad47 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 31 Oct 2012 03:37:48 +0000 Subject: Return the right error value when dup[23]() newfd argument is too large Jack Lin reports that the error return from dup3() for the RLIMIT_NOFILE case changed incorrectly after 3.6. The culprit is commit f33ff9927f42 ("take rlimit check to callers of expand_files()") which when it moved the "return -EMFILE" out to the caller, didn't notice that the dup3() had special code to turn the EMFILE return into EBADF. The replace_fd() helper that got added later then inherited the bug too. Reported-by: Jack Lin Signed-off-by: Al Viro [ Noted more bugs, wrote proper changelog, fixed up typos - Linus ] Signed-off-by: Linus Torvalds diff --git a/fs/file.c b/fs/file.c index d3b5fa8..708d997 100644 --- a/fs/file.c +++ b/fs/file.c @@ -900,7 +900,7 @@ int replace_fd(unsigned fd, struct file *file, unsigned flags) return __close_fd(files, fd); if (fd >= rlimit(RLIMIT_NOFILE)) - return -EMFILE; + return -EBADF; spin_lock(&files->file_lock); err = expand_files(files, fd); @@ -926,7 +926,7 @@ SYSCALL_DEFINE3(dup3, unsigned int, oldfd, unsigned int, newfd, int, flags) return -EINVAL; if (newfd >= rlimit(RLIMIT_NOFILE)) - return -EMFILE; + return -EBADF; spin_lock(&files->file_lock); err = expand_files(files, newfd); -- cgit v0.10.2 From 32ed1911fc79908d704023317d4ddeb3883fd07e Mon Sep 17 00:00:00 2001 From: Rolf Eike Beer Date: Tue, 30 Oct 2012 23:39:10 -0700 Subject: Input: tsc40 - remove wrong announcement of pressure support The tsc40 driver announces it supports the pressure event, but will never send one. The announcement will cause tslib to wait for such events and sending all touch events with a pressure of 0. Removing the announcement will make tslib fall back to emulating the pressure on touch events so everything works as expected. Signed-off-by: Rolf Eike Beer Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/touchscreen/tsc40.c b/drivers/input/touchscreen/tsc40.c index 63209aa..eb96f16 100644 --- a/drivers/input/touchscreen/tsc40.c +++ b/drivers/input/touchscreen/tsc40.c @@ -107,7 +107,6 @@ static int tsc_connect(struct serio *serio, struct serio_driver *drv) __set_bit(BTN_TOUCH, input_dev->keybit); input_set_abs_params(ptsc->dev, ABS_X, 0, 0x3ff, 0, 0); input_set_abs_params(ptsc->dev, ABS_Y, 0, 0x3ff, 0, 0); - input_set_abs_params(ptsc->dev, ABS_PRESSURE, 0, 0, 0, 0); serio_set_drvdata(serio, ptsc); -- cgit v0.10.2 From 16c2e1fae8d60a9d6d16e009a76ba3472568e094 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 31 Oct 2012 07:41:42 +0100 Subject: ALSA: ice1724: Fix rate setup after resume The rate isn't restored properly after resume since it's only set up in hw_params, and not in prepare callback. For fixing it, put the corresponding call to resume callback as well. Reported-and-tested-by: Ondrej Zary Signed-off-by: Takashi Iwai diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c index 3050a52..245d874 100644 --- a/sound/pci/ice1712/ice1724.c +++ b/sound/pci/ice1712/ice1724.c @@ -2859,7 +2859,12 @@ static int snd_vt1724_resume(struct device *dev) ice->set_spdif_clock(ice, 0); } else { /* internal on-card clock */ - snd_vt1724_set_pro_rate(ice, ice->pro_rate_default, 1); + int rate; + if (ice->cur_rate) + rate = ice->cur_rate; + else + rate = ice->pro_rate_default; + snd_vt1724_set_pro_rate(ice, rate, 1); } update_spdif_bits(ice, ice->pm_saved_spdif_ctrl); -- cgit v0.10.2 From 3ccc60f9d8c39180c205dba1a020735bda1b2491 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Fri, 19 Oct 2012 13:28:46 +0200 Subject: HID: microsoft: fix invalid rdesc for 3k kbd Microsoft Digital Media Keyboard 3000 has two interfaces, and the second one has a report descriptor with a bug. The second collection says: 05 01 -- global; usage page -- 01 -- Generic Desktop Controls 09 80 -- local; usage -- 80 -- System Control a1 01 -- main; collection -- 01 -- application 85 03 -- global; report ID -- 03 19 00 -- local; Usage Minimum -- 00 29 ff -- local; Usage Maximum -- ff 15 00 -- global; Logical Minimum -- 0 26 ff 00 -- global; Logical Maximum -- ff 81 00 -- main; input c0 -- main; End Collection I.e. it makes us think that there are all kinds of usages of system control. That the keyboard is a not only a keyboard, but also a joystick, mouse, gamepad, keypad, etc. The same as for the Wireless Desktop Receiver, this should be Physical Min/Max. So fix that appropriately. References: https://bugzilla.novell.com/show_bug.cgi?id=776834 Cc: Signed-off-by: Jiri Slaby Signed-off-by: Jiri Kosina diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c index 3acdcfc..f676c01 100644 --- a/drivers/hid/hid-microsoft.c +++ b/drivers/hid/hid-microsoft.c @@ -28,22 +28,30 @@ #define MS_RDESC 0x08 #define MS_NOGET 0x10 #define MS_DUPLICATE_USAGES 0x20 +#define MS_RDESC_3K 0x40 -/* - * Microsoft Wireless Desktop Receiver (Model 1028) has - * 'Usage Min/Max' where it ought to have 'Physical Min/Max' - */ static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize) { unsigned long quirks = (unsigned long)hid_get_drvdata(hdev); + /* + * Microsoft Wireless Desktop Receiver (Model 1028) has + * 'Usage Min/Max' where it ought to have 'Physical Min/Max' + */ if ((quirks & MS_RDESC) && *rsize == 571 && rdesc[557] == 0x19 && rdesc[559] == 0x29) { hid_info(hdev, "fixing up Microsoft Wireless Receiver Model 1028 report descriptor\n"); rdesc[557] = 0x35; rdesc[559] = 0x45; } + /* the same as above (s/usage/physical/) */ + if ((quirks & MS_RDESC_3K) && *rsize == 106 && + !memcmp((char []){ 0x19, 0x00, 0x29, 0xff }, + &rdesc[94], 4)) { + rdesc[94] = 0x35; + rdesc[96] = 0x45; + } return rdesc; } @@ -192,7 +200,7 @@ static const struct hid_device_id ms_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB), .driver_data = MS_PRESENTER }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K), - .driver_data = MS_ERGONOMY }, + .driver_data = MS_ERGONOMY | MS_RDESC_3K }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0), .driver_data = MS_NOGET }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500), -- cgit v0.10.2 From 65b258e9b57980c8241342928d5cd717ee11a68b Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Thu, 25 Oct 2012 15:35:25 +0100 Subject: HID: multitouch: put the case in the right switch statement Signed-off-by: Alan Cox Acked-by: Benjamin Tissoires Signed-off-by: Jiri Kosina diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 3eb02b9..c97011c 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -421,11 +421,11 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, * contact max are global to the report */ td->last_field_index = field->index; return -1; - } case HID_DG_TOUCH: /* Legacy devices use TIPSWITCH and not TOUCH. * Let's just ignore this field. */ return -1; + } /* let hid-input decide for the others */ return 0; -- cgit v0.10.2 From 58ad34bf62b9fc52c04e6aabe3ad5a47e4a00dc1 Mon Sep 17 00:00:00 2001 From: Xianhan Yu Date: Mon, 29 Oct 2012 23:04:37 +0800 Subject: HID: multitouch: fix maxcontacts problem on GeneralTouch Fix maxcontacts problem for PWT GeneralTouch multi-touchscreen. Our device didn't contain HID_DG_CONTACTMAX usage. This usage use to describe touchscreen's maxcontacts for hid-multitouch.c to get maxcontacts automatic. We fix the device that driver can get maxcontact from our device, hence it doesn't need .maxcontact=10. Now there is just one device class can fix all our PWT touchscreen. Signed-off-by: Xianhan Yu Signed-off-by: Jiri Kosina diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index c97011c..7867d69 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -210,8 +210,7 @@ static struct mt_class mt_classes[] = { }, { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | - MT_QUIRK_SLOT_IS_CONTACTNUMBER, - .maxcontacts = 10 + MT_QUIRK_SLOT_IS_CONTACTNUMBER }, { .name = MT_CLS_FLATFROG, -- cgit v0.10.2 From 8d80da90f53d37cf6caefc61353e1cc3a145b9e0 Mon Sep 17 00:00:00 2001 From: Dirk Hohndel Date: Tue, 30 Oct 2012 11:11:48 -0700 Subject: HID: Add support for the MacBook Pro 10,2 keyboard / touchpad This enables the existing drivers for keyboard and touchpad with the new USB IDs found on the MBP 13" Reasonable Resolution (also known as the Retina Display). Added entries to both keyboard and mouse ignore lists. Signed-off-by: Dirk Hohndel Signed-off-by: Jiri Kosina diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c index 06ebdbb..fd7722a 100644 --- a/drivers/hid/hid-apple.c +++ b/drivers/hid/hid-apple.c @@ -522,6 +522,12 @@ static const struct hid_device_id apple_devices[] = { .driver_data = APPLE_HAS_FN | APPLE_ISO_KEYBOARD }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS), .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI), + .driver_data = APPLE_HAS_FN }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO), + .driver_data = APPLE_HAS_FN | APPLE_ISO_KEYBOARD }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS), + .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI), .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO), diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index bd3971b..f4109fd 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1532,6 +1532,9 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) }, @@ -2139,6 +2142,9 @@ static const struct hid_device_id hid_mouse_ignore_list[] = { { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, { } diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 269b509..9d7a428 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -118,6 +118,9 @@ #define USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI 0x0252 #define USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO 0x0253 #define USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS 0x0254 +#define USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI 0x0259 +#define USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO 0x025a +#define USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS 0x025b #define USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI 0x0249 #define USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO 0x024a #define USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS 0x024b diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c index 3a78f23..2baff1b 100644 --- a/drivers/input/mouse/bcm5974.c +++ b/drivers/input/mouse/bcm5974.c @@ -84,6 +84,10 @@ #define USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI 0x0262 #define USB_DEVICE_ID_APPLE_WELLSPRING7_ISO 0x0263 #define USB_DEVICE_ID_APPLE_WELLSPRING7_JIS 0x0264 +/* MacbookPro10,2 (unibody, October 2012) */ +#define USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI 0x0259 +#define USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO 0x025a +#define USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS 0x025b #define BCM5974_DEVICE(prod) { \ .match_flags = (USB_DEVICE_ID_MATCH_DEVICE | \ @@ -137,6 +141,10 @@ static const struct usb_device_id bcm5974_table[] = { BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI), BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_ISO), BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_JIS), + /* MacbookPro10,2 */ + BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI), + BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO), + BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS), /* Terminating entry */ {} }; @@ -379,6 +387,19 @@ static const struct bcm5974_config bcm5974_config_table[] = { { SN_COORD, -150, 6730 }, { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } }, + { + USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI, + USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO, + USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS, + HAS_INTEGRATED_BUTTON, + 0x84, sizeof(struct bt_data), + 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, + { SN_PRESSURE, 0, 300 }, + { SN_WIDTH, 0, 2048 }, + { SN_COORD, -4750, 5280 }, + { SN_COORD, -150, 6730 }, + { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } + }, {} }; -- cgit v0.10.2 From 5fb3d522efca4b3a369040d37d1380103411db74 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Mon, 29 Oct 2012 22:11:50 -0600 Subject: ARM: OMAP2+: hwmod: add flag to prevent hwmod code from touching IP block during init MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add HWMOD_EXT_OPT_MAIN_CLK flag to indicate that this IP block is dependent on an off-chip functional clock that is not guaranteed to be present during initialization. IP blocks marked with this flag are left in the INITIALIZED state during kernel init. This is a workaround for a hardware problem. It should be possible to guarantee that at least one clock source will be present and active for any IP block's main functional clock. This ensures that the hwmod code can enable and reset the IP block. Resetting the IP block during kernel init prevents any bogus bootloader, ROM code, or previous OS configuration from affecting the kernel. Hopefully a clock multiplexer can be added on future SoCs. N.B., at some point in the future, it should be possible to query the clock framework for this type of information. Then this flag should no longer be needed. Signed-off-by: Paul Walmsley Cc: Benoît Cousson diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 70267d2..87cc6d0 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -2384,6 +2384,9 @@ static int __init _setup_reset(struct omap_hwmod *oh) if (oh->_state != _HWMOD_STATE_INITIALIZED) return -EINVAL; + if (oh->flags & HWMOD_EXT_OPT_MAIN_CLK) + return -EPERM; + if (oh->rst_lines_cnt == 0) { r = _enable(oh); if (r) { diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h index b3349f7..1db0294 100644 --- a/arch/arm/plat-omap/include/plat/omap_hwmod.h +++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h @@ -443,6 +443,11 @@ struct omap_hwmod_omap4_prcm { * in order to complete the reset. Optional clocks will be disabled * again after the reset. * HWMOD_16BIT_REG: Module has 16bit registers + * HWMOD_EXT_OPT_MAIN_CLK: The only main functional clock source for + * this IP block comes from an off-chip source and is not always + * enabled. This prevents the hwmod code from being able to + * enable and reset the IP block early. XXX Eventually it should + * be possible to query the clock framework for this information. */ #define HWMOD_SWSUP_SIDLE (1 << 0) #define HWMOD_SWSUP_MSTANDBY (1 << 1) @@ -453,6 +458,7 @@ struct omap_hwmod_omap4_prcm { #define HWMOD_NO_IDLEST (1 << 6) #define HWMOD_CONTROL_OPT_CLKS_IN_RESET (1 << 7) #define HWMOD_16BIT_REG (1 << 8) +#define HWMOD_EXT_OPT_MAIN_CLK (1 << 9) /* * omap_hwmod._int_flags definitions -- cgit v0.10.2 From bc05244e65f26b7b6f87e0964bfe277803914ed9 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Mon, 29 Oct 2012 22:02:14 -0600 Subject: ARM: OMAP4: hwmod data: do not enable or reset the McPDM during kernel init MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Resolve this kernel boot message: omap_hwmod: mcpdm: cannot be enabled for reset (3) The McPDM on OMAP4 can only receive its functional clock from an off-chip source. This source is not guaranteed to be present on the board, and when present, it is controlled by I2C. This would introduce a board dependency to the early hwmod code which it was not designed to handle. Also, neither the driver for this off-chip clock provider nor the I2C code is available early in boot when the hwmod code is attempting to enable and reset IP blocks. This effectively makes it impossible to enable and reset this device during hwmod init. At its core, this patch is a workaround for an OMAP hardware problem. It should be possible to configure the OMAP to provide any IP block's functional clock from an on-chip source. (This is true for almost every IP block on the chip. As far as I know, McPDM is the only exception.) If the kernel cannot reset and configure IP blocks, it cannot guarantee a sane SoC state. Relying on an optional off-chip clock also creates a board dependency which is beyond the scope of the early hwmod code. This patch works around the issue by marking the McPDM hwmod record with the HWMOD_EXT_OPT_MAIN_CLK flag. This prevents the hwmod code from touching the device early during boot. Signed-off-by: Paul Walmsley Cc: Péter Ujfalusi Cc: Benoît Cousson Acked-by: Peter Ujfalusi diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 652d028..7bddfa5 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -2125,6 +2125,14 @@ static struct omap_hwmod omap44xx_mcpdm_hwmod = { .name = "mcpdm", .class = &omap44xx_mcpdm_hwmod_class, .clkdm_name = "abe_clkdm", + /* + * It's suspected that the McPDM requires an off-chip main + * functional clock, controlled via I2C. This IP block is + * currently reset very early during boot, before I2C is + * available, so it doesn't seem that we have any choice in + * the kernel other than to avoid resetting it. + */ + .flags = HWMOD_EXT_OPT_MAIN_CLK, .mpu_irqs = omap44xx_mcpdm_irqs, .sdma_reqs = omap44xx_mcpdm_sdma_reqs, .main_clk = "mcpdm_fck", -- cgit v0.10.2 From 44c91697fb1add76f9f8c28c0d21b82b05b5d4cb Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Thu, 18 Oct 2012 18:59:55 +0900 Subject: drm/exynos: fix display on issue When crtc_funcs->dpms callback is called, exynos_crtc->dpms and exynos_encoder->dpms are changed to new mode. But if user requests dpms mode operation, OFF -> ON, when crtc's dpms callback is called, exynos_encoder->dpms is also changed to ON. This makes encoder's dpms callback call be ignored so display power couldn't become on again. This patch removes exynos_encoder->dpms changing and adds 'updated' variable to exynos_drm_encoder structure to avoid duplicated overlay updating. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.c b/drivers/gpu/drm/exynos/exynos_drm_connector.c index 18c2718..0f68a28 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_connector.c +++ b/drivers/gpu/drm/exynos/exynos_drm_connector.c @@ -374,6 +374,7 @@ struct drm_connector *exynos_drm_connector_create(struct drm_device *dev, exynos_connector->encoder_id = encoder->base.id; exynos_connector->manager = manager; exynos_connector->dpms = DRM_MODE_DPMS_OFF; + connector->dpms = DRM_MODE_DPMS_OFF; connector->encoder = encoder; err = drm_mode_connector_attach_encoder(connector, encoder); diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c index e51503f..241ad1e 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c +++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c @@ -43,12 +43,14 @@ * @manager: specific encoder has its own manager to control a hardware * appropriately and we can access a hardware drawing on this manager. * @dpms: store the encoder dpms value. + * @updated: indicate whether overlay data updating is needed or not. */ struct exynos_drm_encoder { struct drm_crtc *old_crtc; struct drm_encoder drm_encoder; struct exynos_drm_manager *manager; - int dpms; + int dpms; + bool updated; }; static void exynos_drm_connector_power(struct drm_encoder *encoder, int mode) @@ -85,7 +87,9 @@ static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode) switch (mode) { case DRM_MODE_DPMS_ON: if (manager_ops && manager_ops->apply) - manager_ops->apply(manager->dev); + if (!exynos_encoder->updated) + manager_ops->apply(manager->dev); + exynos_drm_connector_power(encoder, mode); exynos_encoder->dpms = mode; break; @@ -94,6 +98,7 @@ static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode) case DRM_MODE_DPMS_OFF: exynos_drm_connector_power(encoder, mode); exynos_encoder->dpms = mode; + exynos_encoder->updated = false; break; default: DRM_ERROR("unspecified mode %d\n", mode); @@ -205,13 +210,22 @@ static void exynos_drm_encoder_prepare(struct drm_encoder *encoder) static void exynos_drm_encoder_commit(struct drm_encoder *encoder) { - struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder); + struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); + struct exynos_drm_manager *manager = exynos_encoder->manager; struct exynos_drm_manager_ops *manager_ops = manager->ops; DRM_DEBUG_KMS("%s\n", __FILE__); if (manager_ops && manager_ops->commit) manager_ops->commit(manager->dev); + + /* + * this will avoid one issue that overlay data is updated to + * real hardware two times. + * And this variable will be used to check if the data was + * already updated or not by exynos_drm_encoder_dpms function. + */ + exynos_encoder->updated = true; } static void exynos_drm_encoder_disable(struct drm_encoder *encoder) @@ -401,19 +415,6 @@ void exynos_drm_encoder_crtc_dpms(struct drm_encoder *encoder, void *data) manager_ops->dpms(manager->dev, mode); /* - * set current mode to new one so that data aren't updated into - * registers by drm_helper_connector_dpms two times. - * - * in case that drm_crtc_helper_set_mode() is called, - * overlay_ops->commit() and manager_ops->commit() callbacks - * can be called two times, first at drm_crtc_helper_set_mode() - * and second at drm_helper_connector_dpms(). - * so with this setting, when drm_helper_connector_dpms() is called - * encoder->funcs->dpms() will be ignored. - */ - exynos_encoder->dpms = mode; - - /* * if this condition is ok then it means that the crtc is already * detached from encoder and last function for detaching is properly * done, so clear pipe from manager to prevent repeated call. -- cgit v0.10.2 From 25a5803037cbe4dedd96011293c94982860785fc Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Tue, 30 Oct 2012 16:08:05 +0900 Subject: MAINTAINERS: Add git repository for Exynos DRM Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/MAINTAINERS b/MAINTAINERS index 1fa9074..a6391ce 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2507,6 +2507,7 @@ M: Joonyoung Shim M: Seung-Woo Kim M: Kyungmin Park L: dri-devel@lists.freedesktop.org +T: git git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git S: Supported F: drivers/gpu/drm/exynos F: include/drm/exynos* -- cgit v0.10.2 From 9eb3e9e6f3cface0d2ffa8d889f44af27dcbce7b Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Mon, 29 Oct 2012 09:31:13 +0100 Subject: drm/exynos: add support for ARCH_MULTIPLATFORM Exynos does not seem to have any dependency on anything from platform headers so just needs Kconfig updated to build in ARCH_MULTIPLATFORM builds. Signed-off-by: Rob Clark Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig index 59a26e5..fc345d4 100644 --- a/drivers/gpu/drm/exynos/Kconfig +++ b/drivers/gpu/drm/exynos/Kconfig @@ -1,6 +1,6 @@ config DRM_EXYNOS tristate "DRM Support for Samsung SoC EXYNOS Series" - depends on DRM && PLAT_SAMSUNG + depends on DRM && (PLAT_SAMSUNG || ARCH_MULTIPLATFORM) select DRM_KMS_HELPER select FB_CFB_FILLRECT select FB_CFB_COPYAREA -- cgit v0.10.2 From 2cdc53b355873ab54b6a348ee5bf022967fb4159 Mon Sep 17 00:00:00 2001 From: Rahul Sharma Date: Wed, 31 Oct 2012 09:36:26 +0530 Subject: drm: exynos: removed warning due to missing typecast for mixer driver data Removing the warning by adding proper type casting where local pointer variable of type mixer driver data is assigned with void pointer. Signed-off-by: Rahul Sharma Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index 614b2e9..e7fbb82 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -1142,7 +1142,7 @@ static int __devinit mixer_probe(struct platform_device *pdev) const struct of_device_id *match; match = of_match_node(of_match_ptr(mixer_match_types), pdev->dev.of_node); - drv = match->data; + drv = (struct mixer_drv_data *)match->data; } else { drv = (struct mixer_drv_data *) platform_get_device_id(pdev)->driver_data; -- cgit v0.10.2 From 35f5149ead73e8e635b417b6c3aece43ffdfe5bc Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 31 Oct 2012 15:50:34 +0100 Subject: mac80211: do not call ieee80211_configure_filter if no interfaces are up Drivers are not expected to handle it before drv_start has been called. It will be called again after an interface has been brought up. Signed-off-by: Felix Fietkau Signed-off-by: Johannes Berg diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 05f3a31..7371f67 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -2594,6 +2594,9 @@ static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, else local->probe_req_reg--; + if (!local->open_count) + break; + ieee80211_queue_work(&local->hw, &local->reconfig_filter); break; default: -- cgit v0.10.2 From bca1e29fb54c51856dda6772d488d41b10ed91da Mon Sep 17 00:00:00 2001 From: David Spinadel Date: Mon, 29 Oct 2012 14:49:41 +0200 Subject: mac80211: init sched_scan_ies In case that there is an unsupported band, the ie will be unallocated and the free will crash. Cc: stable@vger.kernel.org Signed-off-by: David Spinadel Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index c4cdbde..43e60b5 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -917,7 +917,7 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, struct cfg80211_sched_scan_request *req) { struct ieee80211_local *local = sdata->local; - struct ieee80211_sched_scan_ies sched_scan_ies; + struct ieee80211_sched_scan_ies sched_scan_ies = {}; int ret, i; mutex_lock(&local->mtx); -- cgit v0.10.2 From 95a7d76897c1e7243d4137037c66d15cbf2cce76 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Wed, 31 Oct 2012 12:38:31 -0400 Subject: xen/mmu: Use Xen specific TLB flush instead of the generic one. As Mukesh explained it, the MMUEXT_TLB_FLUSH_ALL allows the hypervisor to do a TLB flush on all active vCPUs. If instead we were using the generic one (which ends up being xen_flush_tlb) we end up making the MMUEXT_TLB_FLUSH_LOCAL hypercall. But before we make that hypercall the kernel will IPI all of the vCPUs (even those that were asleep from the hypervisor perspective). The end result is that we needlessly wake them up and do a TLB flush when we can just let the hypervisor do it correctly. This patch gives around 50% speed improvement when migrating idle guest's from one host to another. Oracle-bug: 14630170 CC: stable@vger.kernel.org Tested-by: Jingjie Jiang Suggested-by: Mukesh Rathor Signed-off-by: Konrad Rzeszutek Wilk diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 6226c99..dcf5f2d 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -1288,6 +1288,25 @@ unsigned long xen_read_cr2_direct(void) return this_cpu_read(xen_vcpu_info.arch.cr2); } +void xen_flush_tlb_all(void) +{ + struct mmuext_op *op; + struct multicall_space mcs; + + trace_xen_mmu_flush_tlb_all(0); + + preempt_disable(); + + mcs = xen_mc_entry(sizeof(*op)); + + op = mcs.args; + op->cmd = MMUEXT_TLB_FLUSH_ALL; + MULTI_mmuext_op(mcs.mc, op, 1, NULL, DOMID_SELF); + + xen_mc_issue(PARAVIRT_LAZY_MMU); + + preempt_enable(); +} static void xen_flush_tlb(void) { struct mmuext_op *op; @@ -2518,7 +2537,7 @@ int xen_remap_domain_mfn_range(struct vm_area_struct *vma, err = 0; out: - flush_tlb_all(); + xen_flush_tlb_all(); return err; } diff --git a/include/trace/events/xen.h b/include/trace/events/xen.h index 15ba03b..d06b6da 100644 --- a/include/trace/events/xen.h +++ b/include/trace/events/xen.h @@ -377,6 +377,14 @@ DECLARE_EVENT_CLASS(xen_mmu_pgd, DEFINE_XEN_MMU_PGD_EVENT(xen_mmu_pgd_pin); DEFINE_XEN_MMU_PGD_EVENT(xen_mmu_pgd_unpin); +TRACE_EVENT(xen_mmu_flush_tlb_all, + TP_PROTO(int x), + TP_ARGS(x), + TP_STRUCT__entry(__array(char, x, 0)), + TP_fast_assign((void)x), + TP_printk("%s", "") + ); + TRACE_EVENT(xen_mmu_flush_tlb, TP_PROTO(int x), TP_ARGS(x), -- cgit v0.10.2 From 399f11c3d872bd748e1575574de265a6304c7c43 Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Tue, 30 Oct 2012 16:06:35 -0400 Subject: NFS: Wait for session recovery to finish before returning Currently, we will schedule session recovery and then return to the caller of nfs4_handle_exception. This works for most cases, but causes a hang on the following test case: Client Server ------ ------ Open file over NFS v4.1 Write to file Expire client Try to lock file The server will return NFS4ERR_BADSESSION, prompting the client to schedule recovery. However, the client will continue placing lock attempts and the open recovery never seems to be scheduled. The simplest solution is to wait for session recovery to run before retrying the lock. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 68b21d8..d5fbf1f 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -339,8 +339,7 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc dprintk("%s ERROR: %d Reset session\n", __func__, errorcode); nfs4_schedule_session_recovery(clp->cl_session, errorcode); - exception->retry = 1; - break; + goto wait_on_recovery; #endif /* defined(CONFIG_NFS_V4_1) */ case -NFS4ERR_FILE_OPEN: if (exception->timeout > HZ) { -- cgit v0.10.2 From 3c172868cbbe3eb138fd57bb346c77dffb22b182 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Fri, 26 Oct 2012 06:24:34 +0000 Subject: vxlan: don't expire permanent entries VXLAN confused flag versus bitmap on state. Based on part of a earlier patch by David Stevens. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 607976c..7b4adde 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -816,7 +816,7 @@ static void vxlan_cleanup(unsigned long arg) = container_of(p, struct vxlan_fdb, hlist); unsigned long timeout; - if (f->state == NUD_PERMANENT) + if (f->state & NUD_PERMANENT) continue; timeout = f->used + vxlan->age_interval * HZ; -- cgit v0.10.2 From 2240a9e2d013d8269ea425b73e1d7a54c7bc141f Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 29 Oct 2012 18:37:40 -0400 Subject: NFSv4.1: We must release the sequence id when we fail to get a session slot If we do not release the sequence id in cases where we fail to get a session slot, then we can deadlock if we hit a recovery scenario. Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index d5fbf1f..e0423bb 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1571,9 +1571,11 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata) data->timestamp = jiffies; if (nfs4_setup_sequence(data->o_arg.server, &data->o_arg.seq_args, - &data->o_res.seq_res, task)) - return; - rpc_call_start(task); + &data->o_res.seq_res, + task) != 0) + nfs_release_seqid(data->o_arg.seqid); + else + rpc_call_start(task); return; unlock_no_action: rcu_read_unlock(); @@ -2295,9 +2297,10 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data) if (nfs4_setup_sequence(NFS_SERVER(inode), &calldata->arg.seq_args, &calldata->res.seq_res, - task)) - goto out; - rpc_call_start(task); + task) != 0) + nfs_release_seqid(calldata->arg.seqid); + else + rpc_call_start(task); out: dprintk("%s: done!\n", __func__); } @@ -4544,9 +4547,11 @@ static void nfs4_locku_prepare(struct rpc_task *task, void *data) calldata->timestamp = jiffies; if (nfs4_setup_sequence(calldata->server, &calldata->arg.seq_args, - &calldata->res.seq_res, task)) - return; - rpc_call_start(task); + &calldata->res.seq_res, + task) != 0) + nfs_release_seqid(calldata->arg.seqid); + else + rpc_call_start(task); } static const struct rpc_call_ops nfs4_locku_ops = { @@ -4691,7 +4696,7 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata) /* Do we need to do an open_to_lock_owner? */ if (!(data->arg.lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED)) { if (nfs_wait_on_sequence(data->arg.open_seqid, task) != 0) - return; + goto out_release_lock_seqid; data->arg.open_stateid = &state->stateid; data->arg.new_lock_owner = 1; data->res.open_seqid = data->arg.open_seqid; @@ -4700,10 +4705,15 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata) data->timestamp = jiffies; if (nfs4_setup_sequence(data->server, &data->arg.seq_args, - &data->res.seq_res, task)) + &data->res.seq_res, + task) == 0) { + rpc_call_start(task); return; - rpc_call_start(task); - dprintk("%s: done!, ret = %d\n", __func__, data->rpc_status); + } + nfs_release_seqid(data->arg.open_seqid); +out_release_lock_seqid: + nfs_release_seqid(data->arg.lock_seqid); + dprintk("%s: done!, ret = %d\n", __func__, task->tk_status); } static void nfs4_recover_lock_prepare(struct rpc_task *task, void *calldata) -- cgit v0.10.2 From 2b1bc308f492589f7d49012ed24561534ea2be8c Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 29 Oct 2012 18:53:23 -0400 Subject: NFSv4: nfs4_locku_done must release the sequence id If the state recovery machinery is triggered by the call to nfs4_async_handle_error() then we can deadlock. Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index e0423bb..1465364 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -4531,6 +4531,7 @@ static void nfs4_locku_done(struct rpc_task *task, void *data) if (nfs4_async_handle_error(task, calldata->server, NULL) == -EAGAIN) rpc_restart_call_prepare(task); } + nfs_release_seqid(calldata->arg.seqid); } static void nfs4_locku_prepare(struct rpc_task *task, void *data) -- cgit v0.10.2 From 29c4bcddaa62e2b9fd2ba85668f6718b0b43f0e3 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Wed, 31 Oct 2012 00:30:38 +0100 Subject: cpufreq / powernow-k8: Change maintainer's email address Change the Andreas' email address in drivers/cpufreq/powernow-k8.c. Signed-off-by: Andreas Herrmann Signed-off-by: Rafael J. Wysocki diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c index c16a3a5..e3ebb4f 100644 --- a/drivers/cpufreq/powernow-k8.c +++ b/drivers/cpufreq/powernow-k8.c @@ -5,7 +5,7 @@ * http://www.gnu.org/licenses/gpl.html * * Maintainer: - * Andreas Herrmann + * Andreas Herrmann * * Based on the powernow-k7.c module written by Dave Jones. * (C) 2003 Dave Jones on behalf of SuSE Labs -- cgit v0.10.2 From 2bbf0a1427c377350f001fbc6260995334739ad7 Mon Sep 17 00:00:00 2001 From: Andre Przywara Date: Wed, 31 Oct 2012 17:20:50 +0100 Subject: x86, amd: Disable way access filter on Piledriver CPUs The Way Access Filter in recent AMD CPUs may hurt the performance of some workloads, caused by aliasing issues in the L1 cache. This patch disables it on the affected CPUs. The issue is similar to that one of last year: http://lkml.indiana.edu/hypermail/linux/kernel/1107.3/00041.html This new patch does not replace the old one, we just need another quirk for newer CPUs. The performance penalty without the patch depends on the circumstances, but is a bit less than the last year's 3%. The workloads affected would be those that access code from the same physical page under different virtual addresses, so different processes using the same libraries with ASLR or multiple instances of PIE-binaries. The code needs to be accessed simultaneously from both cores of the same compute unit. More details can be found here: http://developer.amd.com/Assets/SharedL1InstructionCacheonAMD15hCPU.pdf CPUs affected are anything with the core known as Piledriver. That includes the new parts of the AMD A-Series (aka Trinity) and the just released new CPUs of the FX-Series (aka Vishera). The model numbering is a bit odd here: FX CPUs have model 2, A-Series has model 10h, with possible extensions to 1Fh. Hence the range of model ids. Signed-off-by: Andre Przywara Link: http://lkml.kernel.org/r/1351700450-9277-1-git-send-email-osp@andrep.de Signed-off-by: H. Peter Anvin diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index f7e98a2..1b7d165 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -631,6 +631,20 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) } } + /* + * The way access filter has a performance penalty on some workloads. + * Disable it on the affected CPUs. + */ + if ((c->x86 == 0x15) && + (c->x86_model >= 0x02) && (c->x86_model < 0x20)) { + u64 val; + + if (!rdmsrl_safe(0xc0011021, &val) && !(val & 0x1E)) { + val |= 0x1E; + wrmsrl_safe(0xc0011021, val); + } + } + cpu_detect_cache_sizes(c); /* Multi core CPU? */ -- cgit v0.10.2 From 8d96b10639fb402357b75b055b1e82a65ff95050 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 31 Oct 2012 12:16:01 +1100 Subject: NFS: fix bug in legacy DNS resolver. The DNS resolver's use of the sunrpc cache involves a 'ttl' number (relative) rather that a timeout (absolute). This confused me when I wrote commit c5b29f885afe890f953f7f23424045cdad31d3e4 "sunrpc: use seconds since boot in expiry cache" and I managed to break it. The effect is that any TTL is interpreted as 0, and nothing useful gets into the cache. This patch removes the use of get_expiry() - which really expects an expiry time - and uses get_uint() instead, treating the int correctly as a ttl. This fixes a regression that has been present since 2.6.37, causing certain NFS accesses in certain environments to incorrectly fail. Reported-by: Chuck Lever Tested-by: Chuck Lever Cc: stable@vger.kernel.org Signed-off-by: NeilBrown Signed-off-by: Trond Myklebust diff --git a/fs/nfs/dns_resolve.c b/fs/nfs/dns_resolve.c index 31c26c4..ca4b11e 100644 --- a/fs/nfs/dns_resolve.c +++ b/fs/nfs/dns_resolve.c @@ -217,7 +217,7 @@ static int nfs_dns_parse(struct cache_detail *cd, char *buf, int buflen) { char buf1[NFS_DNS_HOSTNAME_MAXLEN+1]; struct nfs_dns_ent key, *item; - unsigned long ttl; + unsigned int ttl; ssize_t len; int ret = -EINVAL; @@ -240,7 +240,8 @@ static int nfs_dns_parse(struct cache_detail *cd, char *buf, int buflen) key.namelen = len; memset(&key.h, 0, sizeof(key.h)); - ttl = get_expiry(&buf); + if (get_uint(&buf, &ttl) < 0) + goto out; if (ttl == 0) goto out; key.h.expiry_time = ttl + seconds_since_boot(); -- cgit v0.10.2 From 7175fe90153e6375082d65884fbb41ab3bbb4901 Mon Sep 17 00:00:00 2001 From: Yanchuan Nian Date: Wed, 31 Oct 2012 16:05:48 +0800 Subject: nfs: Check whether a layout pointer is NULL before free it The new layout pointer in pnfs_find_alloc_layout() may be NULL because of out of memory. we must do some check work, otherwise pnfs_free_layout_hdr() will go wrong because it can not deal with a NULL pointer. Signed-off-by: Yanchuan Nian Signed-off-by: Trond Myklebust diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index fe624c9..2878f97 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -925,8 +925,8 @@ pnfs_find_alloc_layout(struct inode *ino, if (likely(nfsi->layout == NULL)) { /* Won the race? */ nfsi->layout = new; return new; - } - pnfs_free_layout_hdr(new); + } else if (new != NULL) + pnfs_free_layout_hdr(new); out_existing: pnfs_get_layout_hdr(nfsi->layout); return nfsi->layout; -- cgit v0.10.2 From acce94e68a0f346115fd41cdc298197d2d5a59ad Mon Sep 17 00:00:00 2001 From: Scott Mayhew Date: Tue, 16 Oct 2012 13:22:19 -0400 Subject: nfsv3: Make v3 mounts fail with ETIMEDOUTs instead EIO on mountd timeouts In very busy v3 environment, rpc.mountd can respond to the NULL procedure but not the MNT procedure in a timely manner causing the MNT procedure to time out. The problem is the mount system call returns EIO which causes the mount to fail, instead of ETIMEDOUT, which would cause the mount to be retried. This patch sets the RPC_TASK_SOFT|RPC_TASK_TIMEOUT flags to the rpc_call_sync() call in nfs_mount() which causes ETIMEDOUT to be returned on timed out connections. Signed-off-by: Steve Dickson Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c index 8e65c7f..015f71f 100644 --- a/fs/nfs/mount_clnt.c +++ b/fs/nfs/mount_clnt.c @@ -181,7 +181,7 @@ int nfs_mount(struct nfs_mount_request *info) else msg.rpc_proc = &mnt_clnt->cl_procinfo[MOUNTPROC_MNT]; - status = rpc_call_sync(mnt_clnt, &msg, 0); + status = rpc_call_sync(mnt_clnt, &msg, RPC_TASK_SOFT|RPC_TASK_TIMEOUT); rpc_shutdown_client(mnt_clnt); if (status < 0) -- cgit v0.10.2 From 97a54868262da1629a3e65121e65b8e8c4419d9f Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Sun, 21 Oct 2012 19:23:52 +0100 Subject: nfs: Show original device name verbatim in /proc/*/mount{s,info} Since commit c7f404b ('vfs: new superblock methods to override /proc/*/mount{s,info}'), nfs_path() is used to generate the mounted device name reported back to userland. nfs_path() always generates a trailing slash when the given dentry is the root of an NFS mount, but userland may expect the original device name to be returned verbatim (as it used to be). Make this canonicalisation optional and change the callers accordingly. [jrnieder@gmail.com: use flag instead of bool argument] Reported-and-tested-by: Chris Hiestand Reference: http://bugs.debian.org/669314 Signed-off-by: Ben Hutchings Cc: # v2.6.39+ Signed-off-by: Jonathan Nieder Signed-off-by: Trond Myklebust diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 59b133c..a54fe51 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -353,8 +353,9 @@ extern void nfs_sb_active(struct super_block *sb); extern void nfs_sb_deactive(struct super_block *sb); /* namespace.c */ +#define NFS_PATH_CANONICAL 1 extern char *nfs_path(char **p, struct dentry *dentry, - char *buffer, ssize_t buflen); + char *buffer, ssize_t buflen, unsigned flags); extern struct vfsmount *nfs_d_automount(struct path *path); struct vfsmount *nfs_submount(struct nfs_server *, struct dentry *, struct nfs_fh *, struct nfs_fattr *); @@ -498,7 +499,7 @@ static inline char *nfs_devname(struct dentry *dentry, char *buffer, ssize_t buflen) { char *dummy; - return nfs_path(&dummy, dentry, buffer, buflen); + return nfs_path(&dummy, dentry, buffer, buflen, NFS_PATH_CANONICAL); } /* diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c index 6559253..dd057bc 100644 --- a/fs/nfs/namespace.c +++ b/fs/nfs/namespace.c @@ -33,6 +33,7 @@ int nfs_mountpoint_expiry_timeout = 500 * HZ; * @dentry - pointer to dentry * @buffer - result buffer * @buflen - length of buffer + * @flags - options (see below) * * Helper function for constructing the server pathname * by arbitrary hashed dentry. @@ -40,8 +41,14 @@ int nfs_mountpoint_expiry_timeout = 500 * HZ; * This is mainly for use in figuring out the path on the * server side when automounting on top of an existing partition * and in generating /proc/mounts and friends. + * + * Supported flags: + * NFS_PATH_CANONICAL: ensure there is exactly one slash after + * the original device (export) name + * (if unset, the original name is returned verbatim) */ -char *nfs_path(char **p, struct dentry *dentry, char *buffer, ssize_t buflen) +char *nfs_path(char **p, struct dentry *dentry, char *buffer, ssize_t buflen, + unsigned flags) { char *end; int namelen; @@ -74,7 +81,7 @@ rename_retry: rcu_read_unlock(); goto rename_retry; } - if (*end != '/') { + if ((flags & NFS_PATH_CANONICAL) && *end != '/') { if (--buflen < 0) { spin_unlock(&dentry->d_lock); rcu_read_unlock(); @@ -91,9 +98,11 @@ rename_retry: return end; } namelen = strlen(base); - /* Strip off excess slashes in base string */ - while (namelen > 0 && base[namelen - 1] == '/') - namelen--; + if (flags & NFS_PATH_CANONICAL) { + /* Strip off excess slashes in base string */ + while (namelen > 0 && base[namelen - 1] == '/') + namelen--; + } buflen -= namelen; if (buflen < 0) { spin_unlock(&dentry->d_lock); diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c index 79fbb61..1e09eb7 100644 --- a/fs/nfs/nfs4namespace.c +++ b/fs/nfs/nfs4namespace.c @@ -81,7 +81,8 @@ static char *nfs_path_component(const char *nfspath, const char *end) static char *nfs4_path(struct dentry *dentry, char *buffer, ssize_t buflen) { char *limit; - char *path = nfs_path(&limit, dentry, buffer, buflen); + char *path = nfs_path(&limit, dentry, buffer, buflen, + NFS_PATH_CANONICAL); if (!IS_ERR(path)) { char *path_component = nfs_path_component(path, limit); if (path_component) diff --git a/fs/nfs/super.c b/fs/nfs/super.c index e831bce..13c2a5b 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -771,7 +771,7 @@ int nfs_show_devname(struct seq_file *m, struct dentry *root) int err = 0; if (!page) return -ENOMEM; - devname = nfs_path(&dummy, root, page, PAGE_SIZE); + devname = nfs_path(&dummy, root, page, PAGE_SIZE, 0); if (IS_ERR(devname)) err = PTR_ERR(devname); else -- cgit v0.10.2 From 324d003b0cd82151adbaecefef57b73f7959a469 Mon Sep 17 00:00:00 2001 From: Weston Andros Adamson Date: Tue, 30 Oct 2012 17:01:39 -0400 Subject: NFS: add nfs_sb_deactive_async to avoid deadlock Use nfs_sb_deactive_async instead of nfs_sb_deactive when in a workqueue context. This avoids a deadlock where rpc_shutdown_client loops forever in a workqueue kworker context, trying to kill all RPC tasks associated with the client, while one or more of these tasks have already been assigned to the same kworker (and will never run rpc_exit_task). This approach is needed because RPC tasks that have already been assigned to a kworker by queue_work cannot be canceled, as explained in the comment for workqueue.c:insert_wq_barrier. Signed-off-by: Weston Andros Adamson [Trond: add module_get/put.] Signed-off-by: Trond Myklebust diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 5c7325c..6fa01ae 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -685,7 +685,10 @@ static void __put_nfs_open_context(struct nfs_open_context *ctx, int is_sync) if (ctx->cred != NULL) put_rpccred(ctx->cred); dput(ctx->dentry); - nfs_sb_deactive(sb); + if (is_sync) + nfs_sb_deactive(sb); + else + nfs_sb_deactive_async(sb); kfree(ctx->mdsthreshold); kfree(ctx); } diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index a54fe51..05521ca 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -351,6 +351,7 @@ extern int __init register_nfs_fs(void); extern void __exit unregister_nfs_fs(void); extern void nfs_sb_active(struct super_block *sb); extern void nfs_sb_deactive(struct super_block *sb); +extern void nfs_sb_deactive_async(struct super_block *sb); /* namespace.c */ #define NFS_PATH_CANONICAL 1 diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 1465364..8cfbac1 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -2197,7 +2197,7 @@ static void nfs4_free_closedata(void *data) nfs4_put_open_state(calldata->state); nfs_free_seqid(calldata->arg.seqid); nfs4_put_state_owner(sp); - nfs_sb_deactive(sb); + nfs_sb_deactive_async(sb); kfree(calldata); } diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 13c2a5b..652d3f7 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -54,6 +54,7 @@ #include #include #include +#include #include @@ -415,6 +416,54 @@ void nfs_sb_deactive(struct super_block *sb) } EXPORT_SYMBOL_GPL(nfs_sb_deactive); +static int nfs_deactivate_super_async_work(void *ptr) +{ + struct super_block *sb = ptr; + + deactivate_super(sb); + module_put_and_exit(0); + return 0; +} + +/* + * same effect as deactivate_super, but will do final unmount in kthread + * context + */ +static void nfs_deactivate_super_async(struct super_block *sb) +{ + struct task_struct *task; + char buf[INET6_ADDRSTRLEN + 1]; + struct nfs_server *server = NFS_SB(sb); + struct nfs_client *clp = server->nfs_client; + + if (!atomic_add_unless(&sb->s_active, -1, 1)) { + rcu_read_lock(); + snprintf(buf, sizeof(buf), + rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_ADDR)); + rcu_read_unlock(); + + __module_get(THIS_MODULE); + task = kthread_run(nfs_deactivate_super_async_work, sb, + "%s-deactivate-super", buf); + if (IS_ERR(task)) { + pr_err("%s: kthread_run: %ld\n", + __func__, PTR_ERR(task)); + /* make synchronous call and hope for the best */ + deactivate_super(sb); + module_put(THIS_MODULE); + } + } +} + +void nfs_sb_deactive_async(struct super_block *sb) +{ + struct nfs_server *server = NFS_SB(sb); + + if (atomic_dec_and_test(&server->active)) + nfs_deactivate_super_async(sb); +} +EXPORT_SYMBOL_GPL(nfs_sb_deactive_async); + /* * Deliver file system statistics to userspace */ diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c index 13cea63..3f79c77 100644 --- a/fs/nfs/unlink.c +++ b/fs/nfs/unlink.c @@ -95,7 +95,7 @@ static void nfs_async_unlink_release(void *calldata) nfs_dec_sillycount(data->dir); nfs_free_unlinkdata(data); - nfs_sb_deactive(sb); + nfs_sb_deactive_async(sb); } static void nfs_unlink_prepare(struct rpc_task *task, void *calldata) -- cgit v0.10.2 From 87da7e66a40532b743cd50972fcf85a1f15b14ea Mon Sep 17 00:00:00 2001 From: Xiao Guangrong Date: Wed, 24 Oct 2012 14:07:59 +0800 Subject: KVM: x86: fix vcpu->mmio_fragments overflow After commit b3356bf0dbb349 (KVM: emulator: optimize "rep ins" handling), the pieces of io data can be collected and write them to the guest memory or MMIO together Unfortunately, kvm splits the mmio access into 8 bytes and store them to vcpu->mmio_fragments. If the guest uses "rep ins" to move large data, it will cause vcpu->mmio_fragments overflow The bug can be exposed by isapc (-M isapc): [23154.818733] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC [ ......] [23154.858083] Call Trace: [23154.859874] [] kvm_get_cr8+0x1d/0x28 [kvm] [23154.861677] [] kvm_arch_vcpu_ioctl_run+0xcda/0xe45 [kvm] [23154.863604] [] ? kvm_arch_vcpu_load+0x17b/0x180 [kvm] Actually, we can use one mmio_fragment to store a large mmio access then split it when we pass the mmio-exit-info to userspace. After that, we only need two entries to store mmio info for the cross-mmio pages access Signed-off-by: Xiao Guangrong Signed-off-by: Marcelo Tosatti diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 1eefebe..224a7e7 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3779,7 +3779,7 @@ static int write_exit_mmio(struct kvm_vcpu *vcpu, gpa_t gpa, { struct kvm_mmio_fragment *frag = &vcpu->mmio_fragments[0]; - memcpy(vcpu->run->mmio.data, frag->data, frag->len); + memcpy(vcpu->run->mmio.data, frag->data, min(8u, frag->len)); return X86EMUL_CONTINUE; } @@ -3832,18 +3832,11 @@ mmio: bytes -= handled; val += handled; - while (bytes) { - unsigned now = min(bytes, 8U); - - frag = &vcpu->mmio_fragments[vcpu->mmio_nr_fragments++]; - frag->gpa = gpa; - frag->data = val; - frag->len = now; - - gpa += now; - val += now; - bytes -= now; - } + WARN_ON(vcpu->mmio_nr_fragments >= KVM_MAX_MMIO_FRAGMENTS); + frag = &vcpu->mmio_fragments[vcpu->mmio_nr_fragments++]; + frag->gpa = gpa; + frag->data = val; + frag->len = bytes; return X86EMUL_CONTINUE; } @@ -3890,7 +3883,7 @@ int emulator_read_write(struct x86_emulate_ctxt *ctxt, unsigned long addr, vcpu->mmio_needed = 1; vcpu->mmio_cur_fragment = 0; - vcpu->run->mmio.len = vcpu->mmio_fragments[0].len; + vcpu->run->mmio.len = min(8u, vcpu->mmio_fragments[0].len); vcpu->run->mmio.is_write = vcpu->mmio_is_write = ops->write; vcpu->run->exit_reason = KVM_EXIT_MMIO; vcpu->run->mmio.phys_addr = gpa; @@ -5522,28 +5515,44 @@ static int complete_emulated_pio(struct kvm_vcpu *vcpu) * * read: * for each fragment - * write gpa, len - * exit - * copy data + * for each mmio piece in the fragment + * write gpa, len + * exit + * copy data * execute insn * * write: * for each fragment - * write gpa, len - * copy data - * exit + * for each mmio piece in the fragment + * write gpa, len + * copy data + * exit */ static int complete_emulated_mmio(struct kvm_vcpu *vcpu) { struct kvm_run *run = vcpu->run; struct kvm_mmio_fragment *frag; + unsigned len; BUG_ON(!vcpu->mmio_needed); /* Complete previous fragment */ - frag = &vcpu->mmio_fragments[vcpu->mmio_cur_fragment++]; + frag = &vcpu->mmio_fragments[vcpu->mmio_cur_fragment]; + len = min(8u, frag->len); if (!vcpu->mmio_is_write) - memcpy(frag->data, run->mmio.data, frag->len); + memcpy(frag->data, run->mmio.data, len); + + if (frag->len <= 8) { + /* Switch to the next fragment. */ + frag++; + vcpu->mmio_cur_fragment++; + } else { + /* Go forward to the next mmio piece. */ + frag->data += len; + frag->gpa += len; + frag->len -= len; + } + if (vcpu->mmio_cur_fragment == vcpu->mmio_nr_fragments) { vcpu->mmio_needed = 0; if (vcpu->mmio_is_write) @@ -5551,13 +5560,12 @@ static int complete_emulated_mmio(struct kvm_vcpu *vcpu) vcpu->mmio_read_completed = 1; return complete_emulated_io(vcpu); } - /* Initiate next fragment */ - ++frag; + run->exit_reason = KVM_EXIT_MMIO; run->mmio.phys_addr = frag->gpa; if (vcpu->mmio_is_write) - memcpy(run->mmio.data, frag->data, frag->len); - run->mmio.len = frag->len; + memcpy(run->mmio.data, frag->data, min(8u, frag->len)); + run->mmio.len = min(8u, frag->len); run->mmio.is_write = vcpu->mmio_is_write; vcpu->arch.complete_userspace_io = complete_emulated_mmio; return 0; diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 93bfc9f..ecc5543 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -42,19 +42,8 @@ */ #define KVM_MEMSLOT_INVALID (1UL << 16) -/* - * If we support unaligned MMIO, at most one fragment will be split into two: - */ -#ifdef KVM_UNALIGNED_MMIO -# define KVM_EXTRA_MMIO_FRAGMENTS 1 -#else -# define KVM_EXTRA_MMIO_FRAGMENTS 0 -#endif - -#define KVM_USER_MMIO_SIZE 8 - -#define KVM_MAX_MMIO_FRAGMENTS \ - (KVM_MMIO_SIZE / KVM_USER_MMIO_SIZE + KVM_EXTRA_MMIO_FRAGMENTS) +/* Two fragments for cross MMIO pages. */ +#define KVM_MAX_MMIO_FRAGMENTS 2 /* * For the normal pfn, the highest 12 bits should be zero, -- cgit v0.10.2 From 39300ffb9b6666714c60735cf854e1280e4e75f4 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Thu, 1 Nov 2012 00:16:34 -0400 Subject: tools/power turbostat: Repair Segmentation fault when using -i option Fix regression caused by commit 8e180f3cb6b7510a3bdf14e16ce87c9f5d86f102 (tools/power turbostat: add [-d MSR#][-D MSR#] options to print counter deltas) Signed-off-by: Len Brown diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 2655ae9..9942dee 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -1594,7 +1594,7 @@ void cmdline(int argc, char **argv) progname = argv[0]; - while ((opt = getopt(argc, argv, "+pPSvisc:sC:m:M:")) != -1) { + while ((opt = getopt(argc, argv, "+pPSvi:sc:sC:m:M:")) != -1) { switch (opt) { case 'p': show_core_only++; -- cgit v0.10.2 From d91bb17c2a874493603c4d99db305d8caf2d180c Mon Sep 17 00:00:00 2001 From: Len Brown Date: Thu, 1 Nov 2012 00:08:19 -0400 Subject: tools/power turbostat: graceful fail on garbage input When invald MSR's are specified on the command line, turbostat should simply print an error and exit. Signed-off-by: Len Brown diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 9942dee..ea095ab 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -206,8 +206,10 @@ int get_msr(int cpu, off_t offset, unsigned long long *msr) retval = pread(fd, msr, sizeof *msr, offset); close(fd); - if (retval != sizeof *msr) + if (retval != sizeof *msr) { + fprintf(stderr, "%s offset 0x%zx read failed\n", pathname, offset); return -1; + } return 0; } @@ -1101,7 +1103,9 @@ void turbostat_loop() restart: retval = for_all_cpus(get_counters, EVEN_COUNTERS); - if (retval) { + if (retval < -1) { + exit(retval); + } else if (retval == -1) { re_initialize(); goto restart; } @@ -1114,7 +1118,9 @@ restart: } sleep(interval_sec); retval = for_all_cpus(get_counters, ODD_COUNTERS); - if (retval) { + if (retval < -1) { + exit(retval); + } else if (retval == -1) { re_initialize(); goto restart; } @@ -1126,7 +1132,9 @@ restart: flush_stdout(); sleep(interval_sec); retval = for_all_cpus(get_counters, EVEN_COUNTERS); - if (retval) { + if (retval < -1) { + exit(retval); + } else if (retval == -1) { re_initialize(); goto restart; } @@ -1545,8 +1553,11 @@ void turbostat_init() int fork_it(char **argv) { pid_t child_pid; + int status; - for_all_cpus(get_counters, EVEN_COUNTERS); + status = for_all_cpus(get_counters, EVEN_COUNTERS); + if (status) + exit(status); /* clear affinity side-effect of get_counters() */ sched_setaffinity(0, cpu_present_setsize, cpu_present_set); gettimeofday(&tv_even, (struct timezone *)NULL); @@ -1556,7 +1567,6 @@ int fork_it(char **argv) /* child */ execvp(argv[0], argv); } else { - int status; /* parent */ if (child_pid == -1) { @@ -1568,7 +1578,7 @@ int fork_it(char **argv) signal(SIGQUIT, SIG_IGN); if (waitpid(child_pid, &status, 0) == -1) { perror("wait"); - exit(1); + exit(status); } } /* @@ -1585,7 +1595,7 @@ int fork_it(char **argv) fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0); - return 0; + return status; } void cmdline(int argc, char **argv) -- cgit v0.10.2 From dea5f0998aa82bdeca260b87c653db11e91329b2 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Wed, 31 Oct 2012 22:04:26 -0700 Subject: target: Re-add explict zeroing of INQUIRY bounce buffer memory This patch fixes a regression in spc_emulate_inquiry() code where the local scope bounce buffer was no longer getting it's memory zeroed, causing various problems with SCSI initiators that depend upon areas of INQUIRY EVPD=0x83 payload having been zeroed. This bug was introduced with the following v3.7-rc1 patch + CC'ed stable commit: commit ffe7b0e9326d9c68f5688bef691dd49f1e0d3651 Author: Paolo Bonzini Date: Fri Sep 7 17:30:38 2012 +0200 target: support zero allocation length in INQUIRY Go ahead and re-add the missing memset of bounce buffer memory to be copied into the outgoing se_cmd descriptor kmapped SGL payload. Reported-by: Kelsey Prantis Cc: Kelsey Prantis Cc: Paolo Bonzini Cc: Andy Grover Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 9229bd9..6fd434d 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -605,6 +605,8 @@ static int spc_emulate_inquiry(struct se_cmd *cmd) unsigned char buf[SE_INQUIRY_BUF]; int p, ret; + memset(buf, 0, SE_INQUIRY_BUF); + if (dev == tpg->tpg_virt_lun0.lun_se_dev) buf[0] = 0x3f; /* Not connected */ else -- cgit v0.10.2 From 0d0f9dfb31e0a6c92063e235417b42df185b3275 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 31 Oct 2012 09:16:44 -0700 Subject: target: Don't return success from module_init() if setup fails If the call to core_dev_release_virtual_lun0() fails, then nothing sets ret to anything other than 0, so even though everything is torn down and freed, target_core_init_configfs() will seem to succeed and the module will be loaded. Fix this by passing the return value on up the chain. Signed-off-by: Roland Dreier Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 015f5be..c123327 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -3206,7 +3206,8 @@ static int __init target_core_init_configfs(void) if (ret < 0) goto out; - if (core_dev_setup_virtual_lun0() < 0) + ret = core_dev_setup_virtual_lun0(); + if (ret < 0) goto out; return 0; -- cgit v0.10.2 From 3e03989b5868acf69a391a424dc71fcd6cc48167 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 31 Oct 2012 09:16:45 -0700 Subject: target: Avoid integer overflow in se_dev_align_max_sectors() The expression (max_sectors * block_size) might overflow a u32 (indeed, since iblock sets max_hw_sectors to UINT_MAX, it is guaranteed to overflow and end up with a much-too-small result in many common cases). Fix this by doing an equivalent calculation that doesn't require multiplication. While we're touching this code, avoid splitting a printk format across two lines and use pr_info(...) instead of printk(KERN_INFO ...). Signed-off-by: Roland Dreier Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 8d774da..9abef9f 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -850,20 +850,20 @@ int se_dev_check_shutdown(struct se_device *dev) static u32 se_dev_align_max_sectors(u32 max_sectors, u32 block_size) { - u32 tmp, aligned_max_sectors; + u32 aligned_max_sectors; + u32 alignment; /* * Limit max_sectors to a PAGE_SIZE aligned value for modern * transport_allocate_data_tasks() operation. */ - tmp = rounddown((max_sectors * block_size), PAGE_SIZE); - aligned_max_sectors = (tmp / block_size); - if (max_sectors != aligned_max_sectors) { - printk(KERN_INFO "Rounding down aligned max_sectors from %u" - " to %u\n", max_sectors, aligned_max_sectors); - return aligned_max_sectors; - } + alignment = max(1ul, PAGE_SIZE / block_size); + aligned_max_sectors = rounddown(max_sectors, alignment); + + if (max_sectors != aligned_max_sectors) + pr_info("Rounding down aligned max_sectors from %u to %u\n", + max_sectors, aligned_max_sectors); - return max_sectors; + return aligned_max_sectors; } void se_dev_set_default_attribs( -- cgit v0.10.2 From d5627acba9ae584cf4928af19f7ddf5f6837de32 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 31 Oct 2012 09:16:46 -0700 Subject: iscsi-target: Fix missed wakeup race in TX thread The sleeping code in iscsi_target_tx_thread() is susceptible to the classic missed wakeup race: - TX thread finishes handle_immediate_queue() and handle_response_queue(), thinks both queues are empty. - Another thread adds a queue entry and does wake_up_process(), which does nothing because the TX thread is still awake. - TX thread does schedule_timeout() and sleeps forever. In practice this can kill an iSCSI connection if for example an initiator does single-threaded writes and the target misses the wakeup window when queueing an R2T; in this case the connection will be stuck until the initiator loses patience and does some task management operation (or kills the connection entirely). Fix this by converting to wait_event_interruptible(), which does not suffer from this sort of race. Signed-off-by: Roland Dreier Cc: Andy Grover Cc: Hannes Reinecke Cc: Christoph Hellwig Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index d6ce218..035c2c7 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -3719,7 +3719,9 @@ restart: */ iscsit_thread_check_cpumask(conn, current, 1); - schedule_timeout_interruptible(MAX_SCHEDULE_TIMEOUT); + wait_event_interruptible(conn->queues_wq, + !iscsit_conn_all_queues_empty(conn) || + ts->status == ISCSI_THREAD_SET_RESET); if ((ts->status == ISCSI_THREAD_SET_RESET) || signal_pending(current)) diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h index 2ba9f9b..21048db 100644 --- a/drivers/target/iscsi/iscsi_target_core.h +++ b/drivers/target/iscsi/iscsi_target_core.h @@ -486,6 +486,7 @@ struct iscsi_tmr_req { }; struct iscsi_conn { + wait_queue_head_t queues_wq; /* Authentication Successful for this connection */ u8 auth_complete; /* State connection is currently in */ diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index cdc8a10..f8dbec0 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -41,6 +41,7 @@ static int iscsi_login_init_conn(struct iscsi_conn *conn) { + init_waitqueue_head(&conn->queues_wq); INIT_LIST_HEAD(&conn->conn_list); INIT_LIST_HEAD(&conn->conn_cmd_list); INIT_LIST_HEAD(&conn->immed_queue_list); diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c index afd98cc..1a91195 100644 --- a/drivers/target/iscsi/iscsi_target_util.c +++ b/drivers/target/iscsi/iscsi_target_util.c @@ -488,7 +488,7 @@ void iscsit_add_cmd_to_immediate_queue( atomic_set(&conn->check_immediate_queue, 1); spin_unlock_bh(&conn->immed_queue_lock); - wake_up_process(conn->thread_set->tx_thread); + wake_up(&conn->queues_wq); } struct iscsi_queue_req *iscsit_get_cmd_from_immediate_queue(struct iscsi_conn *conn) @@ -562,7 +562,7 @@ void iscsit_add_cmd_to_response_queue( atomic_inc(&cmd->response_queue_count); spin_unlock_bh(&conn->response_queue_lock); - wake_up_process(conn->thread_set->tx_thread); + wake_up(&conn->queues_wq); } struct iscsi_queue_req *iscsit_get_cmd_from_response_queue(struct iscsi_conn *conn) @@ -616,6 +616,24 @@ static void iscsit_remove_cmd_from_response_queue( } } +bool iscsit_conn_all_queues_empty(struct iscsi_conn *conn) +{ + bool empty; + + spin_lock_bh(&conn->immed_queue_lock); + empty = list_empty(&conn->immed_queue_list); + spin_unlock_bh(&conn->immed_queue_lock); + + if (!empty) + return empty; + + spin_lock_bh(&conn->response_queue_lock); + empty = list_empty(&conn->response_queue_list); + spin_unlock_bh(&conn->response_queue_lock); + + return empty; +} + void iscsit_free_queue_reqs_for_conn(struct iscsi_conn *conn) { struct iscsi_queue_req *qr, *qr_tmp; diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h index 44054bd..894d0f8 100644 --- a/drivers/target/iscsi/iscsi_target_util.h +++ b/drivers/target/iscsi/iscsi_target_util.h @@ -25,6 +25,7 @@ extern struct iscsi_queue_req *iscsit_get_cmd_from_immediate_queue(struct iscsi_ extern void iscsit_add_cmd_to_response_queue(struct iscsi_cmd *, struct iscsi_conn *, u8); extern struct iscsi_queue_req *iscsit_get_cmd_from_response_queue(struct iscsi_conn *); extern void iscsit_remove_cmd_from_tx_queues(struct iscsi_cmd *, struct iscsi_conn *); +extern bool iscsit_conn_all_queues_empty(struct iscsi_conn *); extern void iscsit_free_queue_reqs_for_conn(struct iscsi_conn *); extern void iscsit_release_cmd(struct iscsi_cmd *); extern void iscsit_free_cmd(struct iscsi_cmd *); -- cgit v0.10.2 From ab74b3d62f05192bf8fb8f169e7999d1183b2e08 Mon Sep 17 00:00:00 2001 From: Steve Hodgson Date: Wed, 31 Oct 2012 10:24:02 -0700 Subject: target: Fix incorrect usage of nested IRQ spinlocks in ABORT_TASK path This patch changes core_tmr_abort_task() to use spin_lock -> spin_unlock around se_cmd->t_state_lock while spin_lock_irqsave is held via se_sess->sess_cmd_lock. Signed-off-by: Steve Hodgson Signed-off-by: Roland Dreier Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c index 1c59a3c..be75c43 100644 --- a/drivers/target/target_core_tmr.c +++ b/drivers/target/target_core_tmr.c @@ -140,15 +140,15 @@ void core_tmr_abort_task( printk("ABORT_TASK: Found referenced %s task_tag: %u\n", se_cmd->se_tfo->get_fabric_name(), ref_tag); - spin_lock_irq(&se_cmd->t_state_lock); + spin_lock(&se_cmd->t_state_lock); if (se_cmd->transport_state & CMD_T_COMPLETE) { printk("ABORT_TASK: ref_tag: %u already complete, skipping\n", ref_tag); - spin_unlock_irq(&se_cmd->t_state_lock); + spin_unlock(&se_cmd->t_state_lock); spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); goto out; } se_cmd->transport_state |= CMD_T_ABORTED; - spin_unlock_irq(&se_cmd->t_state_lock); + spin_unlock(&se_cmd->t_state_lock); list_del_init(&se_cmd->se_cmd_list); kref_get(&se_cmd->cmd_kref); -- cgit v0.10.2 From df0cfd6990347c20ae031f3f34137cba274f1972 Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Thu, 1 Nov 2012 11:33:26 +0100 Subject: HID: hidraw: put old deallocation mechanism in place This basically reverts commit 4fe9f8e203fda. It causes multiple problems, namely: - after rmmod/modprobe cycle of bus driver, the input is not claimed any more. This is likely because of misplaced hid_hw_close() - it causes memory corruption on hidraw_list As original patch author is not responding to requests to fix his patch, and the original deallocation mechanism is not exposing any problems, I am reverting back to it. Signed-off-by: Jiri Kosina diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c index 17d15bb..7c47fc3 100644 --- a/drivers/hid/hidraw.c +++ b/drivers/hid/hidraw.c @@ -42,7 +42,6 @@ static struct cdev hidraw_cdev; static struct class *hidraw_class; static struct hidraw *hidraw_table[HIDRAW_MAX_DEVICES]; static DEFINE_MUTEX(minors_lock); -static void drop_ref(struct hidraw *hid, int exists_bit); static ssize_t hidraw_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) { @@ -114,7 +113,7 @@ static ssize_t hidraw_send_report(struct file *file, const char __user *buffer, __u8 *buf; int ret = 0; - if (!hidraw_table[minor] || !hidraw_table[minor]->exist) { + if (!hidraw_table[minor]) { ret = -ENODEV; goto out; } @@ -262,7 +261,7 @@ static int hidraw_open(struct inode *inode, struct file *file) } mutex_lock(&minors_lock); - if (!hidraw_table[minor] || !hidraw_table[minor]->exist) { + if (!hidraw_table[minor]) { err = -ENODEV; goto out_unlock; } @@ -299,12 +298,36 @@ out: static int hidraw_release(struct inode * inode, struct file * file) { unsigned int minor = iminor(inode); + struct hidraw *dev; struct hidraw_list *list = file->private_data; + int ret; + int i; + + mutex_lock(&minors_lock); + if (!hidraw_table[minor]) { + ret = -ENODEV; + goto unlock; + } - drop_ref(hidraw_table[minor], 0); list_del(&list->node); + dev = hidraw_table[minor]; + if (!--dev->open) { + if (list->hidraw->exist) { + hid_hw_power(dev->hid, PM_HINT_NORMAL); + hid_hw_close(dev->hid); + } else { + kfree(list->hidraw); + } + } + + for (i = 0; i < HIDRAW_BUFFER_SIZE; ++i) + kfree(list->buffer[i].value); kfree(list); - return 0; + ret = 0; +unlock: + mutex_unlock(&minors_lock); + + return ret; } static long hidraw_ioctl(struct file *file, unsigned int cmd, @@ -506,7 +529,21 @@ EXPORT_SYMBOL_GPL(hidraw_connect); void hidraw_disconnect(struct hid_device *hid) { struct hidraw *hidraw = hid->hidraw; - drop_ref(hidraw, 1); + + mutex_lock(&minors_lock); + hidraw->exist = 0; + + device_destroy(hidraw_class, MKDEV(hidraw_major, hidraw->minor)); + + hidraw_table[hidraw->minor] = NULL; + + if (hidraw->open) { + hid_hw_close(hid); + wake_up_interruptible(&hidraw->wait); + } else { + kfree(hidraw); + } + mutex_unlock(&minors_lock); } EXPORT_SYMBOL_GPL(hidraw_disconnect); @@ -555,23 +592,3 @@ void hidraw_exit(void) unregister_chrdev_region(dev_id, HIDRAW_MAX_DEVICES); } - -static void drop_ref(struct hidraw *hidraw, int exists_bit) -{ - mutex_lock(&minors_lock); - if (exists_bit) { - hid_hw_close(hidraw->hid); - hidraw->exist = 0; - if (hidraw->open) - wake_up_interruptible(&hidraw->wait); - } else { - --hidraw->open; - } - - if (!hidraw->open && !hidraw->exist) { - device_destroy(hidraw_class, MKDEV(hidraw_major, hidraw->minor)); - hidraw_table[hidraw->minor] = NULL; - kfree(hidraw); - } - mutex_unlock(&minors_lock); -} -- cgit v0.10.2 From 59fa6245192159ab5e1e17b8e31f15afa9cff4bf Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 23 Oct 2012 22:29:38 +0200 Subject: futex: Handle futex_pi OWNER_DIED take over correctly Siddhesh analyzed a failure in the take over of pi futexes in case the owner died and provided a workaround. See: http://sourceware.org/bugzilla/show_bug.cgi?id=14076 The detailed problem analysis shows: Futex F is initialized with PTHREAD_PRIO_INHERIT and PTHREAD_MUTEX_ROBUST_NP attributes. T1 lock_futex_pi(F); T2 lock_futex_pi(F); --> T2 blocks on the futex and creates pi_state which is associated to T1. T1 exits --> exit_robust_list() runs --> Futex F userspace value TID field is set to 0 and FUTEX_OWNER_DIED bit is set. T3 lock_futex_pi(F); --> Succeeds due to the check for F's userspace TID field == 0 --> Claims ownership of the futex and sets its own TID into the userspace TID field of futex F --> returns to user space T1 --> exit_pi_state_list() --> Transfers pi_state to waiter T2 and wakes T2 via rt_mutex_unlock(&pi_state->mutex) T2 --> acquires pi_state->mutex and gains real ownership of the pi_state --> Claims ownership of the futex and sets its own TID into the userspace TID field of futex F --> returns to user space T3 --> observes inconsistent state This problem is independent of UP/SMP, preemptible/non preemptible kernels, or process shared vs. private. The only difference is that certain configurations are more likely to expose it. So as Siddhesh correctly analyzed the following check in futex_lock_pi_atomic() is the culprit: if (unlikely(ownerdied || !(curval & FUTEX_TID_MASK))) { We check the userspace value for a TID value of 0 and take over the futex unconditionally if that's true. AFAICT this check is there as it is correct for a different corner case of futexes: the WAITERS bit became stale. Now the proposed change - if (unlikely(ownerdied || !(curval & FUTEX_TID_MASK))) { + if (unlikely(ownerdied || + !(curval & (FUTEX_TID_MASK | FUTEX_WAITERS)))) { solves the problem, but it's not obvious why and it wreckages the "stale WAITERS bit" case. What happens is, that due to the WAITERS bit being set (T2 is blocked on that futex) it enforces T3 to go through lookup_pi_state(), which in the above case returns an existing pi_state and therefor forces T3 to legitimately fight with T2 over the ownership of the pi_state (via pi_state->mutex). Probelm solved! Though that does not work for the "WAITERS bit is stale" problem because if lookup_pi_state() does not find existing pi_state it returns -ERSCH (due to TID == 0) which causes futex_lock_pi() to return -ESRCH to user space because the OWNER_DIED bit is not set. Now there is a different solution to that problem. Do not look at the user space value at all and enforce a lookup of possibly available pi_state. If pi_state can be found, then the new incoming locker T3 blocks on that pi_state and legitimately races with T2 to acquire the rt_mutex and the pi_state and therefor the proper ownership of the user space futex. lookup_pi_state() has the correct order of checks. It first tries to find a pi_state associated with the user space futex and only if that fails it checks for futex TID value = 0. If no pi_state is available nothing can create new state at that point because this happens with the hash bucket lock held. So the above scenario changes to: T1 lock_futex_pi(F); T2 lock_futex_pi(F); --> T2 blocks on the futex and creates pi_state which is associated to T1. T1 exits --> exit_robust_list() runs --> Futex F userspace value TID field is set to 0 and FUTEX_OWNER_DIED bit is set. T3 lock_futex_pi(F); --> Finds pi_state and blocks on pi_state->rt_mutex T1 --> exit_pi_state_list() --> Transfers pi_state to waiter T2 and wakes it via rt_mutex_unlock(&pi_state->mutex) T2 --> acquires pi_state->mutex and gains ownership of the pi_state --> Claims ownership of the futex and sets its own TID into the userspace TID field of futex F --> returns to user space This covers all gazillion points on which T3 might come in between T1's exit_robust_list() clearing the TID field and T2 fixing it up. It also solves the "WAITERS bit stale" problem by forcing the take over. Another benefit of changing the code this way is that it makes it less dependent on untrusted user space values and therefor minimizes the possible wreckage which might be inflicted. As usual after staring for too long at the futex code my brain hurts so much that I really want to ditch that whole optimization of avoiding the syscall for the non contended case for PI futexes and rip out the maze of corner case handling code. Unfortunately we can't as user space relies on that existing behaviour, but at least thinking about it helps me to preserve my mental sanity. Maybe we should nevertheless :) Reported-and-tested-by: Siddhesh Poyarekar Link: http://lkml.kernel.org/r/alpine.LFD.2.02.1210232138540.2756@ionos Acked-by: Darren Hart Cc: stable@vger.kernel.org Signed-off-by: Thomas Gleixner diff --git a/kernel/futex.c b/kernel/futex.c index 3717e7b..20ef219 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -716,7 +716,7 @@ static int futex_lock_pi_atomic(u32 __user *uaddr, struct futex_hash_bucket *hb, struct futex_pi_state **ps, struct task_struct *task, int set_waiters) { - int lock_taken, ret, ownerdied = 0; + int lock_taken, ret, force_take = 0; u32 uval, newval, curval, vpid = task_pid_vnr(task); retry: @@ -755,17 +755,15 @@ retry: newval = curval | FUTEX_WAITERS; /* - * There are two cases, where a futex might have no owner (the - * owner TID is 0): OWNER_DIED. We take over the futex in this - * case. We also do an unconditional take over, when the owner - * of the futex died. - * - * This is safe as we are protected by the hash bucket lock ! + * Should we force take the futex? See below. */ - if (unlikely(ownerdied || !(curval & FUTEX_TID_MASK))) { - /* Keep the OWNER_DIED bit */ + if (unlikely(force_take)) { + /* + * Keep the OWNER_DIED and the WAITERS bit and set the + * new TID value. + */ newval = (curval & ~FUTEX_TID_MASK) | vpid; - ownerdied = 0; + force_take = 0; lock_taken = 1; } @@ -775,7 +773,7 @@ retry: goto retry; /* - * We took the lock due to owner died take over. + * We took the lock due to forced take over. */ if (unlikely(lock_taken)) return 1; @@ -790,20 +788,25 @@ retry: switch (ret) { case -ESRCH: /* - * No owner found for this futex. Check if the - * OWNER_DIED bit is set to figure out whether - * this is a robust futex or not. + * We failed to find an owner for this + * futex. So we have no pi_state to block + * on. This can happen in two cases: + * + * 1) The owner died + * 2) A stale FUTEX_WAITERS bit + * + * Re-read the futex value. */ if (get_futex_value_locked(&curval, uaddr)) return -EFAULT; /* - * We simply start over in case of a robust - * futex. The code above will take the futex - * and return happy. + * If the owner died or we have a stale + * WAITERS bit the owner TID in the user space + * futex is 0. */ - if (curval & FUTEX_OWNER_DIED) { - ownerdied = 1; + if (!(curval & FUTEX_TID_MASK)) { + force_take = 1; goto retry; } default: -- cgit v0.10.2 From 83325d072185899b706de2956170b246585aaec9 Mon Sep 17 00:00:00 2001 From: Egbert Eich Date: Wed, 24 Oct 2012 18:29:49 +0200 Subject: DRM/Radeon: Fix Load Detection on legacy primary DAC. An uninitialized variable led to broken load detection. Signed-off-by: Egbert Eich Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index 0063df9..f278f20 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -671,6 +671,7 @@ static enum drm_connector_status radeon_legacy_primary_dac_detect(struct drm_enc tmp |= RADEON_DAC_RANGE_CNTL_PS2 | RADEON_DAC_CMP_EN; WREG32(RADEON_DAC_CNTL, tmp); + tmp = dac_macro_cntl; tmp &= ~(RADEON_DAC_PDWN_R | RADEON_DAC_PDWN_G | RADEON_DAC_PDWN_B); -- cgit v0.10.2 From 9c50b1d937cc9656100ba10d9f57484c6d173936 Mon Sep 17 00:00:00 2001 From: Egbert Eich Date: Wed, 24 Oct 2012 18:31:19 +0200 Subject: DRM/Radeon: Fix primary DAC Load Detection for RV100 chips. For Radeon 7500 ATI recommends a DAC_FORCE value of 0x1ac. This value works better on ES1000 (RV100) chips, too, as it doesn't produce any false positives on any cards I have tested. Therefore let's assume that this value is good for all RV100 and RV200 chipset generations. Signed-off-by: Egbert Eich Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index f278f20..5fdc67b 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -662,6 +662,8 @@ static enum drm_connector_status radeon_legacy_primary_dac_detect(struct drm_enc if (ASIC_IS_R300(rdev)) tmp |= (0x1b6 << RADEON_DAC_FORCE_DATA_SHIFT); + else if (ASIC_IS_RV100(rdev)) + tmp |= (0x1ac << RADEON_DAC_FORCE_DATA_SHIFT); else tmp |= (0x180 << RADEON_DAC_FORCE_DATA_SHIFT); -- cgit v0.10.2 From fc87f13b8dc73706ae06caf229a336965e9b44a6 Mon Sep 17 00:00:00 2001 From: Egbert Eich Date: Wed, 24 Oct 2012 18:32:52 +0200 Subject: DRM/Radeon: On DVI-I use Load Detection when EDID is bogus. The Radeon driver uses the analog/digital flag to determine if the DAC or the TMDS encoder should be enabled on a DVI-I connector. If the EDID is bogus this flag is no longer reliable. This fix adds a fallback to DAC load detection to determine if anything is connected to the DAC. If not and a (bogus) EDID is found it assumes a digital display is connected. This works around problems with some crappy IPMI devices using Radeon ES1000. Signed-off-by: Egbert Eich Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 67cfc17..b884c36 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -941,7 +941,7 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) struct drm_mode_object *obj; int i; enum drm_connector_status ret = connector_status_disconnected; - bool dret = false; + bool dret = false, broken_edid = false; if (!force && radeon_check_hpd_status_unchanged(connector)) return connector->status; @@ -965,6 +965,9 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) ret = connector_status_disconnected; DRM_ERROR("%s: detected RS690 floating bus bug, stopping ddc detect\n", drm_get_connector_name(connector)); radeon_connector->ddc_bus = NULL; + } else { + ret = connector_status_connected; + broken_edid = true; /* defer use_digital to later */ } } else { radeon_connector->use_digital = !!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL); @@ -1047,13 +1050,24 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) encoder_funcs = encoder->helper_private; if (encoder_funcs->detect) { - if (ret != connector_status_connected) { - ret = encoder_funcs->detect(encoder, connector); - if (ret == connector_status_connected) { - radeon_connector->use_digital = false; + if (!broken_edid) { + if (ret != connector_status_connected) { + /* deal with analog monitors without DDC */ + ret = encoder_funcs->detect(encoder, connector); + if (ret == connector_status_connected) { + radeon_connector->use_digital = false; + } + if (ret != connector_status_disconnected) + radeon_connector->detected_by_load = true; } - if (ret != connector_status_disconnected) - radeon_connector->detected_by_load = true; + } else { + enum drm_connector_status lret; + /* assume digital unless load detected otherwise */ + radeon_connector->use_digital = true; + lret = encoder_funcs->detect(encoder, connector); + DRM_DEBUG_KMS("load_detect %x returned: %x\n",encoder->encoder_type,lret); + if (lret == connector_status_connected) + radeon_connector->use_digital = false; } break; } -- cgit v0.10.2 From 74e4ca32a406a15efb24a6a6ecf84b4cdabfd4e7 Mon Sep 17 00:00:00 2001 From: Peter Senna Tschudin Date: Wed, 24 Oct 2012 16:42:26 +0200 Subject: drivers/gpu/drm/radeon/evergreen_cs.c: Remove unnecessary semicolon A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @r1@ statement S; position p,p1; @@ S@p1;@p @script:python r2@ p << r1.p; p1 << r1.p1; @@ if p[0].line != p1[0].line_end: cocci.include_match(False) @@ position r1.p; @@ -;@p // Signed-off-by: Peter Senna Tschudin Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c index 30271b64..95e6318 100644 --- a/drivers/gpu/drm/radeon/evergreen_cs.c +++ b/drivers/gpu/drm/radeon/evergreen_cs.c @@ -264,7 +264,7 @@ static int evergreen_surface_check_2d(struct radeon_cs_parser *p, /* macro tile width & height */ palign = (8 * surf->bankw * track->npipes) * surf->mtilea; halign = (8 * surf->bankh * surf->nbanks) / surf->mtilea; - mtileb = (palign / 8) * (halign / 8) * tileb;; + mtileb = (palign / 8) * (halign / 8) * tileb; mtile_pr = surf->nbx / palign; mtile_ps = (mtile_pr * surf->nby) / halign; surf->layer_size = mtile_ps * mtileb * slice_pt; -- cgit v0.10.2 From dfdcbebc548ff14fd1a7029c95d060e0dd466469 Mon Sep 17 00:00:00 2001 From: Igor Murzov Date: Thu, 25 Oct 2012 17:09:00 +0400 Subject: drm/radeon: fix ATPX function documentation Fix a copy&pasted documentation. Signed-off-by: Igor Murzov Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c index 37f6a90..15f5ded 100644 --- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c +++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c @@ -352,9 +352,9 @@ static int radeon_atpx_switchto(enum vga_switcheroo_client_id id) } /** - * radeon_atpx_switchto - switch to the requested GPU + * radeon_atpx_power_state - power down/up the requested GPU * - * @id: GPU to switch to + * @id: GPU to power down/up * @state: requested power state (0 = off, 1 = on) * * Execute the necessary ATPX function to power down/up the discrete GPU -- cgit v0.10.2 From d038db86984977646815fff54c1be11bff6b9f5b Mon Sep 17 00:00:00 2001 From: Egbert Eich Date: Tue, 30 Oct 2012 17:42:26 +0100 Subject: DRM/Radeon: Clean up code in TV DAC load detection. Signed-off-by: Egbert Eich Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index 5fdc67b..85a7307 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -1425,7 +1425,8 @@ static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder struct drm_device *dev = encoder->dev; struct radeon_device *rdev = dev->dev_private; uint32_t crtc2_gen_cntl, tv_dac_cntl, dac_cntl2, dac_ext_cntl; - uint32_t disp_hw_debug, disp_output_cntl, gpiopad_a, pixclks_cntl, tmp; + uint32_t gpiopad_a = 0, pixclks_cntl, tmp; + uint32_t disp_output_cntl = 0, disp_hw_debug = 0; enum drm_connector_status found = connector_status_disconnected; struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv; @@ -1464,9 +1465,12 @@ static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder /* save the regs we need */ pixclks_cntl = RREG32_PLL(RADEON_PIXCLKS_CNTL); - gpiopad_a = ASIC_IS_R300(rdev) ? RREG32(RADEON_GPIOPAD_A) : 0; - disp_output_cntl = ASIC_IS_R300(rdev) ? RREG32(RADEON_DISP_OUTPUT_CNTL) : 0; - disp_hw_debug = ASIC_IS_R300(rdev) ? 0 : RREG32(RADEON_DISP_HW_DEBUG); + if (ASIC_IS_R300(rdev)) { + gpiopad_a = RREG32(RADEON_GPIOPAD_A); + disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL); + } else { + disp_hw_debug = RREG32(RADEON_DISP_HW_DEBUG); + } crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL); tv_dac_cntl = RREG32(RADEON_TV_DAC_CNTL); dac_ext_cntl = RREG32(RADEON_DAC_EXT_CNTL); @@ -1476,16 +1480,13 @@ static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder | RADEON_PIX2CLK_DAC_ALWAYS_ONb); WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp); - if (ASIC_IS_R300(rdev)) - WREG32_P(RADEON_GPIOPAD_A, 1, ~1); - tmp = crtc2_gen_cntl & ~RADEON_CRTC2_PIX_WIDTH_MASK; tmp |= RADEON_CRTC2_CRT2_ON | (2 << RADEON_CRTC2_PIX_WIDTH_SHIFT); - WREG32(RADEON_CRTC2_GEN_CNTL, tmp); if (ASIC_IS_R300(rdev)) { + WREG32_P(RADEON_GPIOPAD_A, 1, ~1); tmp = disp_output_cntl & ~RADEON_DISP_TVDAC_SOURCE_MASK; tmp |= RADEON_DISP_TVDAC_SOURCE_CRTC2; WREG32(RADEON_DISP_OUTPUT_CNTL, tmp); @@ -1541,6 +1542,7 @@ static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder } else { WREG32(RADEON_DISP_HW_DEBUG, disp_hw_debug); } + WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl); return found; -- cgit v0.10.2 From 701337dc2711096e5288430599dcf07aac5876ab Mon Sep 17 00:00:00 2001 From: Egbert Eich Date: Tue, 30 Oct 2012 17:42:27 +0100 Subject: DRM/Radeon: Fix TV DAC Load Detection for single CRTC chips. The RN50 has a TV DAC but only a single CRTC. For load detection this DAC is controlled by the primary CRTC. Signed-off-by: Egbert Eich Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index 85a7307..3afed70 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -1424,9 +1424,9 @@ static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder { struct drm_device *dev = encoder->dev; struct radeon_device *rdev = dev->dev_private; - uint32_t crtc2_gen_cntl, tv_dac_cntl, dac_cntl2, dac_ext_cntl; + uint32_t crtc2_gen_cntl = 0, tv_dac_cntl, dac_cntl2, dac_ext_cntl; uint32_t gpiopad_a = 0, pixclks_cntl, tmp; - uint32_t disp_output_cntl = 0, disp_hw_debug = 0; + uint32_t disp_output_cntl = 0, disp_hw_debug = 0, crtc_ext_cntl = 0; enum drm_connector_status found = connector_status_disconnected; struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv; @@ -1465,13 +1465,18 @@ static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder /* save the regs we need */ pixclks_cntl = RREG32_PLL(RADEON_PIXCLKS_CNTL); - if (ASIC_IS_R300(rdev)) { - gpiopad_a = RREG32(RADEON_GPIOPAD_A); - disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL); + + if (rdev->flags & RADEON_SINGLE_CRTC) { + crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL); } else { - disp_hw_debug = RREG32(RADEON_DISP_HW_DEBUG); + if (ASIC_IS_R300(rdev)) { + gpiopad_a = RREG32(RADEON_GPIOPAD_A); + disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL); + } else { + disp_hw_debug = RREG32(RADEON_DISP_HW_DEBUG); + } + crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL); } - crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL); tv_dac_cntl = RREG32(RADEON_TV_DAC_CNTL); dac_ext_cntl = RREG32(RADEON_DAC_EXT_CNTL); dac_cntl2 = RREG32(RADEON_DAC_CNTL2); @@ -1480,19 +1485,24 @@ static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder | RADEON_PIX2CLK_DAC_ALWAYS_ONb); WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp); - tmp = crtc2_gen_cntl & ~RADEON_CRTC2_PIX_WIDTH_MASK; - tmp |= RADEON_CRTC2_CRT2_ON | - (2 << RADEON_CRTC2_PIX_WIDTH_SHIFT); - WREG32(RADEON_CRTC2_GEN_CNTL, tmp); - - if (ASIC_IS_R300(rdev)) { - WREG32_P(RADEON_GPIOPAD_A, 1, ~1); - tmp = disp_output_cntl & ~RADEON_DISP_TVDAC_SOURCE_MASK; - tmp |= RADEON_DISP_TVDAC_SOURCE_CRTC2; - WREG32(RADEON_DISP_OUTPUT_CNTL, tmp); + if (rdev->flags & RADEON_SINGLE_CRTC) { + tmp = crtc_ext_cntl | RADEON_CRTC_CRT_ON; + WREG32(RADEON_CRTC_EXT_CNTL, tmp); } else { - tmp = disp_hw_debug & ~RADEON_CRT2_DISP1_SEL; - WREG32(RADEON_DISP_HW_DEBUG, tmp); + tmp = crtc2_gen_cntl & ~RADEON_CRTC2_PIX_WIDTH_MASK; + tmp |= RADEON_CRTC2_CRT2_ON | + (2 << RADEON_CRTC2_PIX_WIDTH_SHIFT); + WREG32(RADEON_CRTC2_GEN_CNTL, tmp); + + if (ASIC_IS_R300(rdev)) { + WREG32_P(RADEON_GPIOPAD_A, 1, ~1); + tmp = disp_output_cntl & ~RADEON_DISP_TVDAC_SOURCE_MASK; + tmp |= RADEON_DISP_TVDAC_SOURCE_CRTC2; + WREG32(RADEON_DISP_OUTPUT_CNTL, tmp); + } else { + tmp = disp_hw_debug & ~RADEON_CRT2_DISP1_SEL; + WREG32(RADEON_DISP_HW_DEBUG, tmp); + } } tmp = RADEON_TV_DAC_NBLANK | @@ -1534,13 +1544,17 @@ static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder WREG32(RADEON_DAC_CNTL2, dac_cntl2); WREG32(RADEON_DAC_EXT_CNTL, dac_ext_cntl); WREG32(RADEON_TV_DAC_CNTL, tv_dac_cntl); - WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl); - if (ASIC_IS_R300(rdev)) { - WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl); - WREG32_P(RADEON_GPIOPAD_A, gpiopad_a, ~1); + if (rdev->flags & RADEON_SINGLE_CRTC) { + WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl); } else { - WREG32(RADEON_DISP_HW_DEBUG, disp_hw_debug); + WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl); + if (ASIC_IS_R300(rdev)) { + WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl); + WREG32_P(RADEON_GPIOPAD_A, gpiopad_a, ~1); + } else { + WREG32(RADEON_DISP_HW_DEBUG, disp_hw_debug); + } } WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl); -- cgit v0.10.2 From f8c4d701ae3477f41fdc95592caa476617988a53 Mon Sep 17 00:00:00 2001 From: Egbert Eich Date: Mon, 29 Oct 2012 13:46:48 +0100 Subject: DRM/radeon: For single CRTC GPUs move handling of CRTC_CRT_ON to crtc_dpms(). On all dual CRTC GPUs the CRTC_CRT_ON in the RADEON_CRTC_EXT_CNTL register controls the CRTC of the primary DAC. Therefore it is set in the DAC DMPS function. This is different for GPU's with a single CRTC but a primary and a TV DAC: here it controls the single CRTC no matter where it is routed. Therefore we set it here. This avoids an elaborate on/off state tracking since both primary_dac_dpms() and tv_dac_dpms() functions would have to touch this bit. On single CRTC GPUs with just one DAC it's irrelevant where this bit is handled. agd5f: fix warning Signed-off-by: Egbert Eich Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c index 5677a42..6857cb4 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c @@ -295,6 +295,7 @@ static void radeon_crtc_dpms(struct drm_crtc *crtc, int mode) struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); struct drm_device *dev = crtc->dev; struct radeon_device *rdev = dev->dev_private; + uint32_t crtc_ext_cntl = 0; uint32_t mask; if (radeon_crtc->crtc_id) @@ -307,6 +308,16 @@ static void radeon_crtc_dpms(struct drm_crtc *crtc, int mode) RADEON_CRTC_VSYNC_DIS | RADEON_CRTC_HSYNC_DIS); + /* + * On all dual CRTC GPUs this bit controls the CRTC of the primary DAC. + * Therefore it is set in the DAC DMPS function. + * This is different for GPU's with a single CRTC but a primary and a + * TV DAC: here it controls the single CRTC no matter where it is + * routed. Therefore we set it here. + */ + if (rdev->flags & RADEON_SINGLE_CRTC) + crtc_ext_cntl = RADEON_CRTC_CRT_ON; + switch (mode) { case DRM_MODE_DPMS_ON: radeon_crtc->enabled = true; @@ -317,7 +328,7 @@ static void radeon_crtc_dpms(struct drm_crtc *crtc, int mode) else { WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_EN, ~(RADEON_CRTC_EN | RADEON_CRTC_DISP_REQ_EN_B)); - WREG32_P(RADEON_CRTC_EXT_CNTL, 0, ~mask); + WREG32_P(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl, ~(mask | crtc_ext_cntl)); } drm_vblank_post_modeset(dev, radeon_crtc->crtc_id); radeon_crtc_load_lut(crtc); @@ -331,7 +342,7 @@ static void radeon_crtc_dpms(struct drm_crtc *crtc, int mode) else { WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_DISP_REQ_EN_B, ~(RADEON_CRTC_EN | RADEON_CRTC_DISP_REQ_EN_B)); - WREG32_P(RADEON_CRTC_EXT_CNTL, mask, ~mask); + WREG32_P(RADEON_CRTC_EXT_CNTL, mask, ~(mask | crtc_ext_cntl)); } radeon_crtc->enabled = false; /* adjust pm to dpms changes AFTER disabling crtcs */ diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index 3afed70..817392f 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -537,7 +537,9 @@ static void radeon_legacy_primary_dac_dpms(struct drm_encoder *encoder, int mode break; } - WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl); + /* handled in radeon_crtc_dpms() */ + if (!(rdev->flags & RADEON_SINGLE_CRTC)) + WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl); WREG32(RADEON_DAC_CNTL, dac_cntl); WREG32(RADEON_DAC_MACRO_CNTL, dac_macro_cntl); @@ -1095,7 +1097,8 @@ static void radeon_legacy_tv_dac_dpms(struct drm_encoder *encoder, int mode) } else { if (is_tv) WREG32(RADEON_TV_MASTER_CNTL, tv_master_cntl); - else + /* handled in radeon_crtc_dpms() */ + else if (!(rdev->flags & RADEON_SINGLE_CRTC)) WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl); WREG32(RADEON_TV_DAC_CNTL, tv_dac_cntl); } -- cgit v0.10.2 From 6d9cdfc27115b5d4a32906b25a6b2f89920b0366 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 31 Oct 2012 11:51:03 -0400 Subject: drm/radeon: add load detection support for ext DAC on R200 (v2) The R200 asics use an external DAC for the secondary DAC. The current KMS code tries to use code for the integrated TV DAC for R200 which leads to unpredictable results since R200 does not have an integrated TV DAC. This patch ports the external DAC load detection support from the UMS driver to KMS. v2: fix typo in loop break logic Signed-off-by: Alex Deucher Reviewed-by: Egbert Eich diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index 817392f..f5ba224 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -1422,6 +1422,96 @@ static bool radeon_legacy_tv_detect(struct drm_encoder *encoder, return found; } +static bool radeon_legacy_ext_dac_detect(struct drm_encoder *encoder, + struct drm_connector *connector) +{ + struct drm_device *dev = encoder->dev; + struct radeon_device *rdev = dev->dev_private; + uint32_t gpio_monid, fp2_gen_cntl, disp_output_cntl, crtc2_gen_cntl; + uint32_t disp_lin_trans_grph_a, disp_lin_trans_grph_b, disp_lin_trans_grph_c; + uint32_t disp_lin_trans_grph_d, disp_lin_trans_grph_e, disp_lin_trans_grph_f; + uint32_t tmp, crtc2_h_total_disp, crtc2_v_total_disp; + uint32_t crtc2_h_sync_strt_wid, crtc2_v_sync_strt_wid; + bool found = false; + int i; + + /* save the regs we need */ + gpio_monid = RREG32(RADEON_GPIO_MONID); + fp2_gen_cntl = RREG32(RADEON_FP2_GEN_CNTL); + disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL); + crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL); + disp_lin_trans_grph_a = RREG32(RADEON_DISP_LIN_TRANS_GRPH_A); + disp_lin_trans_grph_b = RREG32(RADEON_DISP_LIN_TRANS_GRPH_B); + disp_lin_trans_grph_c = RREG32(RADEON_DISP_LIN_TRANS_GRPH_C); + disp_lin_trans_grph_d = RREG32(RADEON_DISP_LIN_TRANS_GRPH_D); + disp_lin_trans_grph_e = RREG32(RADEON_DISP_LIN_TRANS_GRPH_E); + disp_lin_trans_grph_f = RREG32(RADEON_DISP_LIN_TRANS_GRPH_F); + crtc2_h_total_disp = RREG32(RADEON_CRTC2_H_TOTAL_DISP); + crtc2_v_total_disp = RREG32(RADEON_CRTC2_V_TOTAL_DISP); + crtc2_h_sync_strt_wid = RREG32(RADEON_CRTC2_H_SYNC_STRT_WID); + crtc2_v_sync_strt_wid = RREG32(RADEON_CRTC2_V_SYNC_STRT_WID); + + tmp = RREG32(RADEON_GPIO_MONID); + tmp &= ~RADEON_GPIO_A_0; + WREG32(RADEON_GPIO_MONID, tmp); + + WREG32(RADEON_FP2_GEN_CNTL, (RADEON_FP2_ON | + RADEON_FP2_PANEL_FORMAT | + R200_FP2_SOURCE_SEL_TRANS_UNIT | + RADEON_FP2_DVO_EN | + R200_FP2_DVO_RATE_SEL_SDR)); + + WREG32(RADEON_DISP_OUTPUT_CNTL, (RADEON_DISP_DAC_SOURCE_RMX | + RADEON_DISP_TRANS_MATRIX_GRAPHICS)); + + WREG32(RADEON_CRTC2_GEN_CNTL, (RADEON_CRTC2_EN | + RADEON_CRTC2_DISP_REQ_EN_B)); + + WREG32(RADEON_DISP_LIN_TRANS_GRPH_A, 0x00000000); + WREG32(RADEON_DISP_LIN_TRANS_GRPH_B, 0x000003f0); + WREG32(RADEON_DISP_LIN_TRANS_GRPH_C, 0x00000000); + WREG32(RADEON_DISP_LIN_TRANS_GRPH_D, 0x000003f0); + WREG32(RADEON_DISP_LIN_TRANS_GRPH_E, 0x00000000); + WREG32(RADEON_DISP_LIN_TRANS_GRPH_F, 0x000003f0); + + WREG32(RADEON_CRTC2_H_TOTAL_DISP, 0x01000008); + WREG32(RADEON_CRTC2_H_SYNC_STRT_WID, 0x00000800); + WREG32(RADEON_CRTC2_V_TOTAL_DISP, 0x00080001); + WREG32(RADEON_CRTC2_V_SYNC_STRT_WID, 0x00000080); + + for (i = 0; i < 200; i++) { + tmp = RREG32(RADEON_GPIO_MONID); + if (tmp & RADEON_GPIO_Y_0) + found = true; + + if (found) + break; + + if (!drm_can_sleep()) + mdelay(1); + else + msleep(1); + } + + /* restore the regs we used */ + WREG32(RADEON_DISP_LIN_TRANS_GRPH_A, disp_lin_trans_grph_a); + WREG32(RADEON_DISP_LIN_TRANS_GRPH_B, disp_lin_trans_grph_b); + WREG32(RADEON_DISP_LIN_TRANS_GRPH_C, disp_lin_trans_grph_c); + WREG32(RADEON_DISP_LIN_TRANS_GRPH_D, disp_lin_trans_grph_d); + WREG32(RADEON_DISP_LIN_TRANS_GRPH_E, disp_lin_trans_grph_e); + WREG32(RADEON_DISP_LIN_TRANS_GRPH_F, disp_lin_trans_grph_f); + WREG32(RADEON_CRTC2_H_TOTAL_DISP, crtc2_h_total_disp); + WREG32(RADEON_CRTC2_V_TOTAL_DISP, crtc2_v_total_disp); + WREG32(RADEON_CRTC2_H_SYNC_STRT_WID, crtc2_h_sync_strt_wid); + WREG32(RADEON_CRTC2_V_SYNC_STRT_WID, crtc2_v_sync_strt_wid); + WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl); + WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl); + WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl); + WREG32(RADEON_GPIO_MONID, gpio_monid); + + return found; +} + static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder *encoder, struct drm_connector *connector) { @@ -1466,6 +1556,13 @@ static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder return connector_status_disconnected; } + /* R200 uses an external DAC for secondary DAC */ + if (rdev->family == CHIP_R200) { + if (radeon_legacy_ext_dac_detect(encoder, connector)) + found = connector_status_connected; + return found; + } + /* save the regs we need */ pixclks_cntl = RREG32_PLL(RADEON_PIXCLKS_CNTL); -- cgit v0.10.2 From 9f4c3f1cde541d477633479a0203ef8a834ee5f9 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 31 Oct 2012 01:20:05 -0200 Subject: ASoC: mxs-saif: Add MODULE_ALIAS Add MODULE_ALIAS information. Signed-off-by: Fabio Estevam Acked-by: Dong Aisheng Signed-off-by: Mark Brown diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index aa037b2..93380cc 100644 --- a/sound/soc/mxs/mxs-saif.c +++ b/sound/soc/mxs/mxs-saif.c @@ -812,3 +812,4 @@ module_platform_driver(mxs_saif_driver); MODULE_AUTHOR("Freescale Semiconductor, Inc."); MODULE_DESCRIPTION("MXS ASoC SAIF driver"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:mxs-saif"); -- cgit v0.10.2 From 50f8d35de8ba4af311ea1176c534e8b73bb198e5 Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Wed, 31 Oct 2012 22:30:54 +0000 Subject: ixgbe: PTP get_ts_info missing software support This patch corrects the ethtool get_ts_info functon which did not state that software timestamping was supported, even though it is. Signed-off-by: Jacob Keller CC: Stable [3.5] Tested-by: Stephen Ko Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c index 56b20d1..116f0e9 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c @@ -2673,6 +2673,9 @@ static int ixgbe_get_ts_info(struct net_device *dev, case ixgbe_mac_X540: case ixgbe_mac_82599EB: info->so_timestamping = + SOF_TIMESTAMPING_TX_SOFTWARE | + SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE | SOF_TIMESTAMPING_TX_HARDWARE | SOF_TIMESTAMPING_RX_HARDWARE | SOF_TIMESTAMPING_RAW_HARDWARE; -- cgit v0.10.2 From b457bcb97212c38154d941d88c13f5f63f3620d0 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 31 Oct 2012 05:46:52 +0000 Subject: bnx2x: Fix 57810 1G-KR link against certain switches. Fix 1G KR link by restoring CL72 misc control register to default value rather than 0. Signed-off-by: Yaniv Rosner Signed-off-by: Barak Witkowski Signed-off-by: Dmitry Kravkov Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index e2e45ee..290e12a 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -3545,12 +3545,11 @@ static void bnx2x_warpcore_set_lpi_passthrough(struct bnx2x_phy *phy, static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy, struct link_params *params, struct link_vars *vars) { - u16 val16 = 0, lane, i; + u16 val16 = 0, lane, i, cl72_ctrl; struct bnx2x *bp = params->bp; static struct bnx2x_reg_set reg_set[] = { {MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x7}, {MDIO_AN_DEVAD, MDIO_WC_REG_PAR_DET_10G_CTRL, 0}, - {MDIO_WC_DEVAD, MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, 0}, {MDIO_WC_DEVAD, MDIO_WC_REG_XGXSBLK1_LANECTRL0, 0xff}, {MDIO_WC_DEVAD, MDIO_WC_REG_XGXSBLK1_LANECTRL1, 0x5555}, {MDIO_PMA_DEVAD, MDIO_WC_REG_IEEE0BLK_AUTONEGNP, 0x0}, @@ -3565,6 +3564,13 @@ static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy, bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg, reg_set[i].val); + bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, &cl72_ctrl); + cl72_ctrl &= 0xf8ff; + cl72_ctrl |= 0x3800; + bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, cl72_ctrl); + /* Check adding advertisement for 1G KX */ if (((vars->line_speed == SPEED_AUTO_NEG) && (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) || -- cgit v0.10.2 From a75bb0010026f39910cd01d33a5baa47191539a0 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 31 Oct 2012 05:46:53 +0000 Subject: bnx2x: Fix link down in 57712 following LFA In case of link flap avoidance between PXE boot and bnx2x, set the appropriate PHY DEVAD even if LFA kicks in. Signed-off-by: Yaniv Rosner Signed-off-by: Barak Witkowski Signed-off-by: Dmitry Kravkov Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 290e12a..f2436ea 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -3295,6 +3295,21 @@ static void bnx2x_serdes_deassert(struct bnx2x *bp, u8 port) DEFAULT_PHY_DEV_ADDR); } +static void bnx2x_xgxs_specific_func(struct bnx2x_phy *phy, + struct link_params *params, + u32 action) +{ + struct bnx2x *bp = params->bp; + switch (action) { + case PHY_INIT: + /* Set correct devad */ + REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_ST + params->port*0x18, 0); + REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_DEVAD + params->port*0x18, + phy->def_md_devad); + break; + } +} + static void bnx2x_xgxs_deassert(struct link_params *params) { struct bnx2x *bp = params->bp; @@ -3309,10 +3324,8 @@ static void bnx2x_xgxs_deassert(struct link_params *params) REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_CLEAR, val); udelay(500); REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_SET, val); - - REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_ST + port*0x18, 0); - REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_DEVAD + port*0x18, - params->phy[INT_PHY].def_md_devad); + bnx2x_xgxs_specific_func(¶ms->phy[INT_PHY], params, + PHY_INIT); } static void bnx2x_calc_ieee_aneg_adv(struct bnx2x_phy *phy, @@ -10999,7 +11012,7 @@ static struct bnx2x_phy phy_xgxs = { .format_fw_ver = (format_fw_ver_t)NULL, .hw_reset = (hw_reset_t)NULL, .set_link_led = (set_link_led_t)NULL, - .phy_specific_func = (phy_specific_func_t)NULL + .phy_specific_func = (phy_specific_func_t)bnx2x_xgxs_specific_func }; static struct bnx2x_phy phy_warpcore = { .type = PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT, -- cgit v0.10.2 From cd1a26a3bbc797100c55594bac0546204ccb1107 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 31 Oct 2012 05:46:54 +0000 Subject: bnx2x: Restore global registers back to default. Several KR registers were not set correctly back to default after loopback test, so set those global registers over the global WC lane (zero) rather than the current lane. Signed-off-by: Yaniv Rosner Signed-off-by: Barak Witkowski Signed-off-by: Dmitry Kravkov Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index f2436ea..5e8f7b7 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -3558,13 +3558,11 @@ static void bnx2x_warpcore_set_lpi_passthrough(struct bnx2x_phy *phy, static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy, struct link_params *params, struct link_vars *vars) { - u16 val16 = 0, lane, i, cl72_ctrl; + u16 lane, i, cl72_ctrl, an_adv = 0; + u16 ucode_ver; struct bnx2x *bp = params->bp; static struct bnx2x_reg_set reg_set[] = { {MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x7}, - {MDIO_AN_DEVAD, MDIO_WC_REG_PAR_DET_10G_CTRL, 0}, - {MDIO_WC_DEVAD, MDIO_WC_REG_XGXSBLK1_LANECTRL0, 0xff}, - {MDIO_WC_DEVAD, MDIO_WC_REG_XGXSBLK1_LANECTRL1, 0x5555}, {MDIO_PMA_DEVAD, MDIO_WC_REG_IEEE0BLK_AUTONEGNP, 0x0}, {MDIO_WC_DEVAD, MDIO_WC_REG_RX66_CONTROL, 0x7415}, {MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_MISC2, 0x6190}, @@ -3589,7 +3587,7 @@ static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy, (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) || (vars->line_speed == SPEED_1000)) { u32 addr = MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2; - val16 |= (1<<5); + an_adv |= (1<<5); /* Enable CL37 1G Parallel Detect */ bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD, addr, 0x1); @@ -3599,11 +3597,14 @@ static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy, (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) || (vars->line_speed == SPEED_10000)) { /* Check adding advertisement for 10G KR */ - val16 |= (1<<7); + an_adv |= (1<<7); /* Enable 10G Parallel Detect */ + CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK, + MDIO_AER_BLOCK_AER_REG, 0); + bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_WC_REG_PAR_DET_10G_CTRL, 1); - + bnx2x_set_aer_mmd(params, phy); DP(NETIF_MSG_LINK, "Advertize 10G\n"); } @@ -3623,7 +3624,7 @@ static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy, /* Advertised speeds */ bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, - MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT1, val16); + MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT1, an_adv); /* Advertised and set FEC (Forward Error Correction) */ bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, @@ -3647,9 +3648,10 @@ static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy, /* Set KR Autoneg Work-Around flag for Warpcore version older than D108 */ bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD, - MDIO_WC_REG_UC_INFO_B1_VERSION, &val16); - if (val16 < 0xd108) { - DP(NETIF_MSG_LINK, "Enable AN KR work-around\n"); + MDIO_WC_REG_UC_INFO_B1_VERSION, &ucode_ver); + if (ucode_ver < 0xd108) { + DP(NETIF_MSG_LINK, "Enable AN KR work-around. WC ver:0x%x\n", + ucode_ver); vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY; } bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD, @@ -3670,21 +3672,16 @@ static void bnx2x_warpcore_set_10G_KR(struct bnx2x_phy *phy, struct link_vars *vars) { struct bnx2x *bp = params->bp; - u16 i; + u16 val16, i, lane; static struct bnx2x_reg_set reg_set[] = { /* Disable Autoneg */ {MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x7}, - {MDIO_AN_DEVAD, MDIO_WC_REG_PAR_DET_10G_CTRL, 0}, {MDIO_WC_DEVAD, MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, 0x3f00}, {MDIO_AN_DEVAD, MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT1, 0}, {MDIO_AN_DEVAD, MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x0}, {MDIO_WC_DEVAD, MDIO_WC_REG_DIGITAL3_UP1, 0x1}, {MDIO_WC_DEVAD, MDIO_WC_REG_DIGITAL5_MISC7, 0xa}, - /* Disable CL36 PCS Tx */ - {MDIO_WC_DEVAD, MDIO_WC_REG_XGXSBLK1_LANECTRL0, 0x0}, - /* Double Wide Single Data Rate @ pll rate */ - {MDIO_WC_DEVAD, MDIO_WC_REG_XGXSBLK1_LANECTRL1, 0xFFFF}, /* Leave cl72 training enable, needed for KR */ {MDIO_PMA_DEVAD, MDIO_WC_REG_PMD_IEEE9BLK_TENGBASE_KR_PMD_CONTROL_REGISTER_150, @@ -3695,11 +3692,24 @@ static void bnx2x_warpcore_set_10G_KR(struct bnx2x_phy *phy, bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg, reg_set[i].val); - /* Leave CL72 enabled */ - bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD, - MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, - 0x3800); + lane = bnx2x_get_warpcore_lane(phy, params); + /* Global registers */ + CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK, + MDIO_AER_BLOCK_AER_REG, 0); + /* Disable CL36 PCS Tx */ + bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_XGXSBLK1_LANECTRL0, &val16); + val16 &= ~(0x0011 << lane); + bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_XGXSBLK1_LANECTRL0, val16); + bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_XGXSBLK1_LANECTRL1, &val16); + val16 |= (0x0303 << (lane << 1)); + bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_XGXSBLK1_LANECTRL1, val16); + /* Restore AER */ + bnx2x_set_aer_mmd(params, phy); /* Set speed via PMA/PMD register */ bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x2040); @@ -4322,7 +4332,7 @@ static void bnx2x_warpcore_link_reset(struct bnx2x_phy *phy, struct link_params *params) { struct bnx2x *bp = params->bp; - u16 val16; + u16 val16, lane; bnx2x_sfp_e3_set_transmitter(params, phy, 0); bnx2x_set_mdio_clk(bp, params->chip_id, params->port); bnx2x_set_aer_mmd(params, phy); @@ -4359,6 +4369,30 @@ static void bnx2x_warpcore_link_reset(struct bnx2x_phy *phy, MDIO_WC_REG_XGXSBLK1_LANECTRL2, val16 & 0xff00); + lane = bnx2x_get_warpcore_lane(phy, params); + /* Disable CL36 PCS Tx */ + bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_XGXSBLK1_LANECTRL0, &val16); + val16 |= (0x11 << lane); + if (phy->flags & FLAGS_WC_DUAL_MODE) + val16 |= (0x22 << lane); + bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_XGXSBLK1_LANECTRL0, val16); + + bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_XGXSBLK1_LANECTRL1, &val16); + val16 &= ~(0x0303 << (lane << 1)); + val16 |= (0x0101 << (lane << 1)); + if (phy->flags & FLAGS_WC_DUAL_MODE) { + val16 &= ~(0x0c0c << (lane << 1)); + val16 |= (0x0404 << (lane << 1)); + } + + bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_XGXSBLK1_LANECTRL1, val16); + /* Restore AER */ + bnx2x_set_aer_mmd(params, phy); + } static void bnx2x_set_warpcore_loopback(struct bnx2x_phy *phy, -- cgit v0.10.2 From 4978140c38958b15b3b95a49bda688723fa014eb Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 31 Oct 2012 05:46:55 +0000 Subject: bnx2x: Fix potential incorrect link speed provision Fix possible incorrect link speed provision following rapid link speed change. Clear link speed mask after each link change, and not only after link down. Signed-off-by: Yaniv Rosner Signed-off-by: Barak Witkowski Signed-off-by: Dmitry Kravkov Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 5e8f7b7..308ba42 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -137,7 +137,16 @@ #define LINK_20GTFD LINK_STATUS_SPEED_AND_DUPLEX_20GTFD #define LINK_20GXFD LINK_STATUS_SPEED_AND_DUPLEX_20GXFD - +#define LINK_UPDATE_MASK \ + (LINK_STATUS_SPEED_AND_DUPLEX_MASK | \ + LINK_STATUS_LINK_UP | \ + LINK_STATUS_PHYSICAL_LINK_FLAG | \ + LINK_STATUS_AUTO_NEGOTIATE_COMPLETE | \ + LINK_STATUS_RX_FLOW_CONTROL_FLAG_MASK | \ + LINK_STATUS_TX_FLOW_CONTROL_FLAG_MASK | \ + LINK_STATUS_PARALLEL_DETECTION_FLAG_MASK | \ + LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE | \ + LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE) #define SFP_EEPROM_CON_TYPE_ADDR 0x2 #define SFP_EEPROM_CON_TYPE_VAL_LC 0x7 @@ -6349,15 +6358,7 @@ static int bnx2x_update_link_down(struct link_params *params, vars->mac_type = MAC_TYPE_NONE; /* Update shared memory */ - vars->link_status &= ~(LINK_STATUS_SPEED_AND_DUPLEX_MASK | - LINK_STATUS_LINK_UP | - LINK_STATUS_PHYSICAL_LINK_FLAG | - LINK_STATUS_AUTO_NEGOTIATE_COMPLETE | - LINK_STATUS_RX_FLOW_CONTROL_FLAG_MASK | - LINK_STATUS_TX_FLOW_CONTROL_FLAG_MASK | - LINK_STATUS_PARALLEL_DETECTION_FLAG_MASK | - LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE | - LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE); + vars->link_status &= ~LINK_UPDATE_MASK; vars->line_speed = 0; bnx2x_update_mng(params, vars->link_status); @@ -6505,6 +6506,7 @@ int bnx2x_link_update(struct link_params *params, struct link_vars *vars) u16 ext_phy_line_speed = 0, prev_line_speed = vars->line_speed; u8 active_external_phy = INT_PHY; vars->phy_flags &= ~PHY_HALF_OPEN_CONN_FLAG; + vars->link_status &= ~LINK_UPDATE_MASK; for (phy_index = INT_PHY; phy_index < params->num_phys; phy_index++) { phy_vars[phy_index].flow_ctrl = 0; -- cgit v0.10.2 From e82041df5d0a85457880fbbe00da057443b3fcc0 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 31 Oct 2012 05:46:56 +0000 Subject: bnx2x: Fix unrecognized SFP+ module after driver is loaded When SFP+ module is plugged in after driver is already loaded, it may not be recognized, so set SFP module recognition time up to 300ms, without resetting the module power in the middle. Signed-off-by: Yaniv Rosner Signed-off-by: Barak Witkowski Signed-off-by: Dmitry Kravkov Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 308ba42..679d45e 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -7634,7 +7634,7 @@ static void bnx2x_warpcore_power_module(struct link_params *params, static int bnx2x_warpcore_read_sfp_module_eeprom(struct bnx2x_phy *phy, struct link_params *params, u16 addr, u8 byte_cnt, - u8 *o_buf) + u8 *o_buf, u8 is_init) { int rc = 0; u8 i, j = 0, cnt = 0; @@ -7651,10 +7651,10 @@ static int bnx2x_warpcore_read_sfp_module_eeprom(struct bnx2x_phy *phy, /* 4 byte aligned address */ addr32 = addr & (~0x3); do { - if (cnt == I2C_WA_PWR_ITER) { + if ((!is_init) && (cnt == I2C_WA_PWR_ITER)) { bnx2x_warpcore_power_module(params, phy, 0); /* Note that 100us are not enough here */ - usleep_range(1000,1000); + usleep_range(1000, 2000); bnx2x_warpcore_power_module(params, phy, 1); } rc = bnx2x_bsc_read(params, phy, 0xa0, addr32, 0, byte_cnt, @@ -7774,7 +7774,7 @@ int bnx2x_read_sfp_module_eeprom(struct bnx2x_phy *phy, break; case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT: rc = bnx2x_warpcore_read_sfp_module_eeprom(phy, params, addr, - byte_cnt, o_buf); + byte_cnt, o_buf, 0); break; } return rc; @@ -7978,6 +7978,7 @@ static int bnx2x_wait_for_sfp_module_initialized(struct bnx2x_phy *phy, { u8 val; + int rc; struct bnx2x *bp = params->bp; u16 timeout; /* Initialization time after hot-plug may take up to 300ms for @@ -7985,8 +7986,14 @@ static int bnx2x_wait_for_sfp_module_initialized(struct bnx2x_phy *phy, */ for (timeout = 0; timeout < 60; timeout++) { - if (bnx2x_read_sfp_module_eeprom(phy, params, 1, 1, &val) - == 0) { + if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) + rc = bnx2x_warpcore_read_sfp_module_eeprom(phy, + params, 1, + 1, &val, 1); + else + rc = bnx2x_read_sfp_module_eeprom(phy, params, 1, 1, + &val); + if (rc == 0) { DP(NETIF_MSG_LINK, "SFP+ module initialization took %d ms\n", timeout * 5); @@ -7994,7 +8001,8 @@ static int bnx2x_wait_for_sfp_module_initialized(struct bnx2x_phy *phy, } usleep_range(5000, 10000); } - return -EINVAL; + rc = bnx2x_read_sfp_module_eeprom(phy, params, 1, 1, &val); + return rc; } static void bnx2x_8727_power_module(struct bnx2x *bp, -- cgit v0.10.2 From 03c31488a084b344cd04bb853db97706143327b9 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 31 Oct 2012 05:46:57 +0000 Subject: bnx2x: Fix no link on 577xx 10G-baseT Since the Warpcore supports various link types, need to set only the correct supported modes for XFI which is the serdes interface for the 10G-baseT PHY. Signed-off-by: Yaniv Rosner Signed-off-by: Barak Witkowski Signed-off-by: Dmitry Kravkov Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 679d45e..6dd0dd0 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -11528,6 +11528,11 @@ static int bnx2x_populate_int_phy(struct bnx2x *bp, u32 shmem_base, u8 port, phy->media_type = ETH_PHY_BASE_T; break; case PORT_HW_CFG_NET_SERDES_IF_XFI: + phy->supported &= (SUPPORTED_1000baseT_Full | + SUPPORTED_10000baseT_Full | + SUPPORTED_FIBRE | + SUPPORTED_Pause | + SUPPORTED_Asym_Pause); phy->media_type = ETH_PHY_XFP_FIBER; break; case PORT_HW_CFG_NET_SERDES_IF_SFI: -- cgit v0.10.2 From 477864ddd36510e9802c2adb6d9445c2d7783fe5 Mon Sep 17 00:00:00 2001 From: Dmitry Kravkov Date: Wed, 31 Oct 2012 05:46:58 +0000 Subject: bnx2x: Disable FCoE for 57840 since not yet supported by FW Signed-off-by: Dmitry Kravkov Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index d5648fc..f23e8c0 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -11902,7 +11902,15 @@ static int __devinit bnx2x_init_one(struct pci_dev *pdev, /* disable FCOE L2 queue for E1x */ if (CHIP_IS_E1x(bp)) bp->flags |= NO_FCOE_FLAG; - + /* disable FCOE for 57840 device, until FW supports it */ + switch (ent->driver_data) { + case BCM57840_O: + case BCM57840_4_10: + case BCM57840_2_20: + case BCM57840_MFO: + case BCM57840_MF: + bp->flags |= NO_FCOE_FLAG; + } #endif -- cgit v0.10.2 From d24bab93e42b1f90d89c86b3edbb81ec34bb9474 Mon Sep 17 00:00:00 2001 From: Weston Andros Adamson Date: Thu, 1 Nov 2012 11:21:53 -0400 Subject: SUNRPC: return proper errno from backchannel_rqst The one and only caller (in fs/nfs/nfs4client.c) uses the result as an errno and would have interpreted an error as EPERM. Signed-off-by: Weston Andros Adamson Signed-off-by: Trond Myklebust diff --git a/net/sunrpc/backchannel_rqst.c b/net/sunrpc/backchannel_rqst.c index 5a3d675..a9c0bbc 100644 --- a/net/sunrpc/backchannel_rqst.c +++ b/net/sunrpc/backchannel_rqst.c @@ -172,7 +172,7 @@ out_free: xprt_free_allocation(req); dprintk("RPC: setup backchannel transport failed\n"); - return -1; + return -ENOMEM; } EXPORT_SYMBOL_GPL(xprt_setup_backchannel); -- cgit v0.10.2 From eb6e98a1b25fb0f347fece9814257a9e1cb537c8 Mon Sep 17 00:00:00 2001 From: "nikolay@redhat.com" Date: Wed, 31 Oct 2012 04:42:51 +0000 Subject: bonding: fix off-by-one error Fix off-by-one error because IFNAMSIZ == 16 and when this code gets executed we stick a NULL byte where we should not. How to reproduce: with CONFIG_CC_STACKPROTECTOR=y (otherwise it may pass by silently) modprobe bonding; echo 1 > /sys/class/net/bond0/bonding/mode; echo "AAAAAAAAAAAAAAAA" > /sys/class/net/bond0/bonding/primary; Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index dc15d24..238d9b3 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -1060,7 +1060,7 @@ static ssize_t bonding_store_primary(struct device *d, goto out; } - sscanf(buf, "%16s", ifname); /* IFNAMSIZ */ + sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ /* check to see if we are clearing primary */ if (!strlen(ifname) || buf[0] == '\n') { -- cgit v0.10.2 From c84e1590d149cfc885062e938944941f33e69f38 Mon Sep 17 00:00:00 2001 From: "nikolay@redhat.com" Date: Wed, 31 Oct 2012 06:03:52 +0000 Subject: bonding: fix second off-by-one error Fix off-by-one error because IFNAMSIZ == 16 and when this code gets executed we stick a NULL byte where we should not. How to reproduce: with CONFIG_CC_STACKPROTECTOR=y (otherwise it may pass by silently) modprobe bonding; echo 1 > /sys/class/net/bond0/bonding/mode; echo "AAAAAAAAAAAAAAAA" > /sys/class/net/bond0/bonding/active_slave; Signed-off-by: Nikolay Aleksandrov Note: Sorry for the second patch but I missed this one while checking the file. You can squash them into one patch. Signed-off-by: David S. Miller diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 238d9b3..ef8d2a0 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -1237,7 +1237,7 @@ static ssize_t bonding_store_active_slave(struct device *d, goto out; } - sscanf(buf, "%16s", ifname); /* IFNAMSIZ */ + sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ /* check to see if we are clearing active */ if (!strlen(ifname) || buf[0] == '\n') { -- cgit v0.10.2 From d3e9a1dc7c34c3c5a253091289a54883bf27f6ba Mon Sep 17 00:00:00 2001 From: Masanari Iida Date: Wed, 31 Oct 2012 05:48:19 +0000 Subject: net: sctp: Fix typo in net/sctp Correct spelling typo in net/sctp/socket.c Signed-off-by: Masanari Iida Acked-by: Vlad Yasevich Signed-off-by: David S. Miller diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 59d16ea..a60d1f8 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -974,7 +974,7 @@ SCTP_STATIC int sctp_setsockopt_bindx(struct sock* sk, void *addr_buf; struct sctp_af *af; - SCTP_DEBUG_PRINTK("sctp_setsocktopt_bindx: sk %p addrs %p" + SCTP_DEBUG_PRINTK("sctp_setsockopt_bindx: sk %p addrs %p" " addrs_size %d opt %d\n", sk, addrs, addrs_size, op); if (unlikely(addrs_size <= 0)) -- cgit v0.10.2 From 8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664 Mon Sep 17 00:00:00 2001 From: Jesper Dangaard Brouer Date: Wed, 31 Oct 2012 02:45:32 +0000 Subject: net: fix divide by zero in tcp algorithm illinois Reading TCP stats when using TCP Illinois congestion control algorithm can cause a divide by zero kernel oops. The division by zero occur in tcp_illinois_info() at: do_div(t, ca->cnt_rtt); where ca->cnt_rtt can become zero (when rtt_reset is called) Steps to Reproduce: 1. Register tcp_illinois: # sysctl -w net.ipv4.tcp_congestion_control=illinois 2. Monitor internal TCP information via command "ss -i" # watch -d ss -i 3. Establish new TCP conn to machine Either it fails at the initial conn, or else it needs to wait for a loss or a reset. This is only related to reading stats. The function avg_delay() also performs the same divide, but is guarded with a (ca->cnt_rtt > 0) at its calling point in update_params(). Thus, simply fix tcp_illinois_info(). Function tcp_illinois_info() / get_info() is called without socket lock. Thus, eliminate any race condition on ca->cnt_rtt by using a local stack variable. Simply reuse info.tcpv_rttcnt, as its already set to ca->cnt_rtt. Function avg_delay() is not affected by this race condition, as its called with the socket lock. Cc: Petr Matousek Signed-off-by: Jesper Dangaard Brouer Acked-by: Eric Dumazet Acked-by: Stephen Hemminger Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c index 813b43a..834857f 100644 --- a/net/ipv4/tcp_illinois.c +++ b/net/ipv4/tcp_illinois.c @@ -313,11 +313,13 @@ static void tcp_illinois_info(struct sock *sk, u32 ext, .tcpv_rttcnt = ca->cnt_rtt, .tcpv_minrtt = ca->base_rtt, }; - u64 t = ca->sum_rtt; - do_div(t, ca->cnt_rtt); - info.tcpv_rtt = t; + if (info.tcpv_rttcnt > 0) { + u64 t = ca->sum_rtt; + do_div(t, info.tcpv_rttcnt); + info.tcpv_rtt = t; + } nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info); } } -- cgit v0.10.2 From 2c42a3fb30845867bfcaf0747ff50c1375884ff2 Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Tue, 30 Oct 2012 12:03:09 +0000 Subject: tcp: Fix double sizeof in new tcp_metrics code Fix double sizeof when parsing IPv6 address from user space because it breaks get/del by specific IPv6 address. Problem noticed by David Binderman: https://bugzilla.kernel.org/show_bug.cgi?id=49171 Signed-off-by: Julian Anastasov Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c index 4c752a6..53bc584 100644 --- a/net/ipv4/tcp_metrics.c +++ b/net/ipv4/tcp_metrics.c @@ -864,7 +864,7 @@ static int parse_nl_addr(struct genl_info *info, struct inetpeer_addr *addr, } a = info->attrs[TCP_METRICS_ATTR_ADDR_IPV6]; if (a) { - if (nla_len(a) != sizeof(sizeof(struct in6_addr))) + if (nla_len(a) != sizeof(struct in6_addr)) return -EINVAL; addr->family = AF_INET6; memcpy(addr->addr.a6, nla_data(a), sizeof(addr->addr.a6)); -- cgit v0.10.2 From f9b1ef5f06d65a01952169b67d474f7f0dcb0206 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 29 Oct 2012 16:48:40 -0400 Subject: NFSv4: Initialise the NFSv4.1 slot table highest_used_slotid correctly Signed-off-by: Trond Myklebust diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 8cfbac1..091baab 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -5677,7 +5677,7 @@ static void nfs4_add_and_init_slots(struct nfs4_slot_table *tbl, tbl->slots = new; tbl->max_slots = max_slots; } - tbl->highest_used_slotid = -1; /* no slot is currently used */ + tbl->highest_used_slotid = NFS4_NO_SLOT; for (i = 0; i < tbl->max_slots; i++) tbl->slots[i].seq_nr = ivalue; spin_unlock(&tbl->slot_tbl_lock); -- cgit v0.10.2 From eaa7cc60f7dff5e74ef387ace8228235fab8241b Mon Sep 17 00:00:00 2001 From: Jamie Lentin Date: Thu, 1 Nov 2012 23:55:43 +0000 Subject: hwmon: Only include of_match_table with CONFIG_OF_GPIO The following fixes build errors on sparc. Without any DT support, of_match_ptr is NULL and the below is a no-op. However, if just CONFIG_OF is defined then so is of_match_ptr. All useful parts of the gpio-fan DT support rely on CONFIG_OF_GPIO anyway, so of_match_table should too. Signed-off-by: Jamie Lentin Signed-off-by: Guenter Roeck diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c index 36509ae..1381a2e 100644 --- a/drivers/hwmon/gpio-fan.c +++ b/drivers/hwmon/gpio-fan.c @@ -630,7 +630,9 @@ static struct platform_driver gpio_fan_driver = { .driver = { .name = "gpio-fan", .pm = GPIO_FAN_PM, +#ifdef CONFIG_OF_GPIO .of_match_table = of_match_ptr(of_gpio_fan_match), +#endif }, }; -- cgit v0.10.2 From 3916e1d71b62b120888aa50bcc8d9a6200fc19a7 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 1 Nov 2012 13:47:09 +1000 Subject: drm/udl: fix stride issues scanning out stride != width*bpp When buffer sharing with the i915 and using a 1680x1050 monitor, the i915 gives is a 6912 buffer for the 6720 width, the code doesn't render this properly as it uses one value to set the base address for reading from the vmap and for where to start on the device. This fixes it by calculating the values correctly for the device and for the pixmap. No idea how I haven't seen this before now. Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h index fccd361..87aa5f5 100644 --- a/drivers/gpu/drm/udl/udl_drv.h +++ b/drivers/gpu/drm/udl/udl_drv.h @@ -104,7 +104,7 @@ udl_fb_user_fb_create(struct drm_device *dev, int udl_render_hline(struct drm_device *dev, int bpp, struct urb **urb_ptr, const char *front, char **urb_buf_ptr, - u32 byte_offset, u32 byte_width, + u32 byte_offset, u32 device_byte_offset, u32 byte_width, int *ident_ptr, int *sent_ptr); int udl_dumb_create(struct drm_file *file_priv, diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c index 69a2b16..d4ab3be 100644 --- a/drivers/gpu/drm/udl/udl_fb.c +++ b/drivers/gpu/drm/udl/udl_fb.c @@ -114,9 +114,10 @@ static void udlfb_dpy_deferred_io(struct fb_info *info, list_for_each_entry(cur, &fbdefio->pagelist, lru) { if (udl_render_hline(dev, (ufbdev->ufb.base.bits_per_pixel / 8), - &urb, (char *) info->fix.smem_start, - &cmd, cur->index << PAGE_SHIFT, - PAGE_SIZE, &bytes_identical, &bytes_sent)) + &urb, (char *) info->fix.smem_start, + &cmd, cur->index << PAGE_SHIFT, + cur->index << PAGE_SHIFT, + PAGE_SIZE, &bytes_identical, &bytes_sent)) goto error; bytes_rendered += PAGE_SIZE; } @@ -187,10 +188,11 @@ int udl_handle_damage(struct udl_framebuffer *fb, int x, int y, for (i = y; i < y + height ; i++) { const int line_offset = fb->base.pitches[0] * i; const int byte_offset = line_offset + (x * bpp); - + const int dev_byte_offset = (fb->base.width * bpp * i) + (x * bpp); if (udl_render_hline(dev, bpp, &urb, (char *) fb->obj->vmapping, - &cmd, byte_offset, width * bpp, + &cmd, byte_offset, dev_byte_offset, + width * bpp, &bytes_identical, &bytes_sent)) goto error; } diff --git a/drivers/gpu/drm/udl/udl_transfer.c b/drivers/gpu/drm/udl/udl_transfer.c index dc09552..142fee5 100644 --- a/drivers/gpu/drm/udl/udl_transfer.c +++ b/drivers/gpu/drm/udl/udl_transfer.c @@ -213,11 +213,12 @@ static void udl_compress_hline16( */ int udl_render_hline(struct drm_device *dev, int bpp, struct urb **urb_ptr, const char *front, char **urb_buf_ptr, - u32 byte_offset, u32 byte_width, + u32 byte_offset, u32 device_byte_offset, + u32 byte_width, int *ident_ptr, int *sent_ptr) { const u8 *line_start, *line_end, *next_pixel; - u32 base16 = 0 + (byte_offset / bpp) * 2; + u32 base16 = 0 + (device_byte_offset / bpp) * 2; struct urb *urb = *urb_ptr; u8 *cmd = *urb_buf_ptr; u8 *cmd_end = (u8 *) urb->transfer_buffer + urb->transfer_buffer_length; -- cgit v0.10.2 From 82fa63bd6b87969dfde0139dbede243380b087d6 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Fri, 12 Oct 2012 11:55:16 +0100 Subject: i2c: mxs: remove broken PIOQUEUE support This I2C master can do DMA and PIOQUEUE (PIO with FIFO). Originally, only PIOQUEUE was supported and it had issues, then DMA support was added this cycle. The original intention was to keep PIOQUEUE since it has less overhead what is nice for small transfers. However, runtime switching between PIOQEUE and DMA depending on the transfer size never worked despite a lot of trying. Since PIOQUEUE mode itself was flaky (polling at places where interrupts failed to work) and the implementation also imposed a size limit for transfers, it is best to remove the support, so users don't fall over its limitations. It also makes the driver a lot cleaner and more robust. If somebody really wants less overhead, plain PIO mode could still be implemented with the addidtional advantage that this mode is also available on MX23, too. Signed-off-by: Wolfram Sang Reviewed-by: Marek Vasut diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c index 1f58197..286ca19 100644 --- a/drivers/i2c/busses/i2c-mxs.c +++ b/drivers/i2c/busses/i2c-mxs.c @@ -1,7 +1,7 @@ /* * Freescale MXS I2C bus driver * - * Copyright (C) 2011 Wolfram Sang, Pengutronix e.K. + * Copyright (C) 2011-2012 Wolfram Sang, Pengutronix e.K. * * based on a (non-working) driver which was: * @@ -35,10 +35,6 @@ #define DRIVER_NAME "mxs-i2c" -static bool use_pioqueue; -module_param(use_pioqueue, bool, 0); -MODULE_PARM_DESC(use_pioqueue, "Use PIOQUEUE mode for transfer instead of DMA"); - #define MXS_I2C_CTRL0 (0x00) #define MXS_I2C_CTRL0_SET (0x04) @@ -75,23 +71,6 @@ MODULE_PARM_DESC(use_pioqueue, "Use PIOQUEUE mode for transfer instead of DMA"); MXS_I2C_CTRL1_SLAVE_STOP_IRQ | \ MXS_I2C_CTRL1_SLAVE_IRQ) -#define MXS_I2C_QUEUECTRL (0x60) -#define MXS_I2C_QUEUECTRL_SET (0x64) -#define MXS_I2C_QUEUECTRL_CLR (0x68) - -#define MXS_I2C_QUEUECTRL_QUEUE_RUN 0x20 -#define MXS_I2C_QUEUECTRL_PIO_QUEUE_MODE 0x04 - -#define MXS_I2C_QUEUESTAT (0x70) -#define MXS_I2C_QUEUESTAT_RD_QUEUE_EMPTY 0x00002000 -#define MXS_I2C_QUEUESTAT_WRITE_QUEUE_CNT_MASK 0x0000001F - -#define MXS_I2C_QUEUECMD (0x80) - -#define MXS_I2C_QUEUEDATA (0x90) - -#define MXS_I2C_DATA (0xa0) - #define MXS_CMD_I2C_SELECT (MXS_I2C_CTRL0_RETAIN_CLOCK | \ MXS_I2C_CTRL0_PRE_SEND_START | \ @@ -153,7 +132,6 @@ struct mxs_i2c_dev { const struct mxs_i2c_speed_config *speed; /* DMA support components */ - bool dma_mode; int dma_channel; struct dma_chan *dmach; struct mxs_dma_data dma_data; @@ -172,99 +150,6 @@ static void mxs_i2c_reset(struct mxs_i2c_dev *i2c) writel(i2c->speed->timing2, i2c->regs + MXS_I2C_TIMING2); writel(MXS_I2C_IRQ_MASK << 8, i2c->regs + MXS_I2C_CTRL1_SET); - if (i2c->dma_mode) - writel(MXS_I2C_QUEUECTRL_PIO_QUEUE_MODE, - i2c->regs + MXS_I2C_QUEUECTRL_CLR); - else - writel(MXS_I2C_QUEUECTRL_PIO_QUEUE_MODE, - i2c->regs + MXS_I2C_QUEUECTRL_SET); -} - -static void mxs_i2c_pioq_setup_read(struct mxs_i2c_dev *i2c, u8 addr, int len, - int flags) -{ - u32 data; - - writel(MXS_CMD_I2C_SELECT, i2c->regs + MXS_I2C_QUEUECMD); - - data = (addr << 1) | I2C_SMBUS_READ; - writel(data, i2c->regs + MXS_I2C_DATA); - - data = MXS_CMD_I2C_READ | MXS_I2C_CTRL0_XFER_COUNT(len) | flags; - writel(data, i2c->regs + MXS_I2C_QUEUECMD); -} - -static void mxs_i2c_pioq_setup_write(struct mxs_i2c_dev *i2c, - u8 addr, u8 *buf, int len, int flags) -{ - u32 data; - int i, shifts_left; - - data = MXS_CMD_I2C_WRITE | MXS_I2C_CTRL0_XFER_COUNT(len + 1) | flags; - writel(data, i2c->regs + MXS_I2C_QUEUECMD); - - /* - * We have to copy the slave address (u8) and buffer (arbitrary number - * of u8) into the data register (u32). To achieve that, the u8 are put - * into the MSBs of 'data' which is then shifted for the next u8. When - * appropriate, 'data' is written to MXS_I2C_DATA. So, the first u32 - * looks like this: - * - * 3 2 1 0 - * 10987654|32109876|54321098|76543210 - * --------+--------+--------+-------- - * buffer+2|buffer+1|buffer+0|slave_addr - */ - - data = ((addr << 1) | I2C_SMBUS_WRITE) << 24; - - for (i = 0; i < len; i++) { - data >>= 8; - data |= buf[i] << 24; - if ((i & 3) == 2) - writel(data, i2c->regs + MXS_I2C_DATA); - } - - /* Write out the remaining bytes if any */ - shifts_left = 24 - (i & 3) * 8; - if (shifts_left) - writel(data >> shifts_left, i2c->regs + MXS_I2C_DATA); -} - -/* - * TODO: should be replaceable with a waitqueue and RD_QUEUE_IRQ (setting the - * rd_threshold to 1). Couldn't get this to work, though. - */ -static int mxs_i2c_wait_for_data(struct mxs_i2c_dev *i2c) -{ - unsigned long timeout = jiffies + msecs_to_jiffies(1000); - - while (readl(i2c->regs + MXS_I2C_QUEUESTAT) - & MXS_I2C_QUEUESTAT_RD_QUEUE_EMPTY) { - if (time_after(jiffies, timeout)) - return -ETIMEDOUT; - cond_resched(); - } - - return 0; -} - -static int mxs_i2c_finish_read(struct mxs_i2c_dev *i2c, u8 *buf, int len) -{ - u32 uninitialized_var(data); - int i; - - for (i = 0; i < len; i++) { - if ((i & 3) == 0) { - if (mxs_i2c_wait_for_data(i2c)) - return -ETIMEDOUT; - data = readl(i2c->regs + MXS_I2C_QUEUEDATA); - } - buf[i] = data & 0xff; - data >>= 8; - } - - return 0; } static void mxs_i2c_dma_finish(struct mxs_i2c_dev *i2c) @@ -432,39 +317,17 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, init_completion(&i2c->cmd_complete); i2c->cmd_err = 0; - if (i2c->dma_mode) { - ret = mxs_i2c_dma_setup_xfer(adap, msg, flags); - if (ret) - return ret; - } else { - if (msg->flags & I2C_M_RD) { - mxs_i2c_pioq_setup_read(i2c, msg->addr, - msg->len, flags); - } else { - mxs_i2c_pioq_setup_write(i2c, msg->addr, msg->buf, - msg->len, flags); - } - - writel(MXS_I2C_QUEUECTRL_QUEUE_RUN, - i2c->regs + MXS_I2C_QUEUECTRL_SET); - } + ret = mxs_i2c_dma_setup_xfer(adap, msg, flags); + if (ret) + return ret; ret = wait_for_completion_timeout(&i2c->cmd_complete, msecs_to_jiffies(1000)); if (ret == 0) goto timeout; - if (!i2c->dma_mode && !i2c->cmd_err && (msg->flags & I2C_M_RD)) { - ret = mxs_i2c_finish_read(i2c, msg->buf, msg->len); - if (ret) - goto timeout; - } - if (i2c->cmd_err == -ENXIO) mxs_i2c_reset(i2c); - else - writel(MXS_I2C_QUEUECTRL_QUEUE_RUN, - i2c->regs + MXS_I2C_QUEUECTRL_CLR); dev_dbg(i2c->dev, "Done with err=%d\n", i2c->cmd_err); @@ -472,8 +335,7 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, timeout: dev_dbg(i2c->dev, "Timeout!\n"); - if (i2c->dma_mode) - mxs_i2c_dma_finish(i2c); + mxs_i2c_dma_finish(i2c); mxs_i2c_reset(i2c); return -ETIMEDOUT; } @@ -502,7 +364,6 @@ static irqreturn_t mxs_i2c_isr(int this_irq, void *dev_id) { struct mxs_i2c_dev *i2c = dev_id; u32 stat = readl(i2c->regs + MXS_I2C_CTRL1) & MXS_I2C_IRQ_MASK; - bool is_last_cmd; if (!stat) return IRQ_NONE; @@ -515,14 +376,6 @@ static irqreturn_t mxs_i2c_isr(int this_irq, void *dev_id) /* MXS_I2C_CTRL1_OVERSIZE_XFER_TERM_IRQ is only for slaves */ i2c->cmd_err = -EIO; - if (!i2c->dma_mode) { - is_last_cmd = (readl(i2c->regs + MXS_I2C_QUEUESTAT) & - MXS_I2C_QUEUESTAT_WRITE_QUEUE_CNT_MASK) == 0; - - if (is_last_cmd || i2c->cmd_err) - complete(&i2c->cmd_complete); - } - writel(stat, i2c->regs + MXS_I2C_CTRL1_CLR); return IRQ_HANDLED; @@ -556,23 +409,14 @@ static int mxs_i2c_get_ofdata(struct mxs_i2c_dev *i2c) int ret; /* - * The MXS I2C DMA mode is prefered and enabled by default. - * The PIO mode is still supported, but should be used only - * for debuging purposes etc. - */ - i2c->dma_mode = !use_pioqueue; - if (!i2c->dma_mode) - dev_info(dev, "Using PIOQUEUE mode for I2C transfers!\n"); - - /* * TODO: This is a temporary solution and should be changed * to use generic DMA binding later when the helpers get in. */ ret = of_property_read_u32(node, "fsl,i2c-dma-channel", &i2c->dma_channel); if (ret) { - dev_warn(dev, "Failed to get DMA channel, using PIOQUEUE!\n"); - i2c->dma_mode = 0; + dev_err(dev, "Failed to get DMA channel!\n"); + return -ENODEV; } ret = of_property_read_u32(node, "clock-frequency", &speed); @@ -634,15 +478,13 @@ static int __devinit mxs_i2c_probe(struct platform_device *pdev) } /* Setup the DMA */ - if (i2c->dma_mode) { - dma_cap_zero(mask); - dma_cap_set(DMA_SLAVE, mask); - i2c->dma_data.chan_irq = dmairq; - i2c->dmach = dma_request_channel(mask, mxs_i2c_dma_filter, i2c); - if (!i2c->dmach) { - dev_err(dev, "Failed to request dma\n"); - return -ENODEV; - } + dma_cap_zero(mask); + dma_cap_set(DMA_SLAVE, mask); + i2c->dma_data.chan_irq = dmairq; + i2c->dmach = dma_request_channel(mask, mxs_i2c_dma_filter, i2c); + if (!i2c->dmach) { + dev_err(dev, "Failed to request dma\n"); + return -ENODEV; } platform_set_drvdata(pdev, i2c); -- cgit v0.10.2 From 817315f57408b1a9c78cbc7ff2bf186da45ddcc1 Mon Sep 17 00:00:00 2001 From: Philippe Begnic Date: Wed, 10 Oct 2012 13:02:26 +0200 Subject: i2c-nomadik: Fixup clock handling Make sure to clk_prepare as well as clk_enable. Signed-off-by: Philippe Begnic Signed-off-by: Ulf Hansson Signed-off-by: Linus Walleij Signed-off-by: Wolfram Sang diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c index 698d7ac..02c3115 100644 --- a/drivers/i2c/busses/i2c-nomadik.c +++ b/drivers/i2c/busses/i2c-nomadik.c @@ -644,7 +644,11 @@ static int nmk_i2c_xfer(struct i2c_adapter *i2c_adap, pm_runtime_get_sync(&dev->adev->dev); - clk_enable(dev->clk); + status = clk_prepare_enable(dev->clk); + if (status) { + dev_err(&dev->adev->dev, "can't prepare_enable clock\n"); + goto out_clk; + } status = init_hw(dev); if (status) @@ -671,7 +675,8 @@ static int nmk_i2c_xfer(struct i2c_adapter *i2c_adap, } out: - clk_disable(dev->clk); + clk_disable_unprepare(dev->clk); +out_clk: pm_runtime_put_sync(&dev->adev->dev); dev->busy = false; -- cgit v0.10.2 From 91b370a0dbda5de92c2cf4c3bc0d18d6bf08f05f Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Thu, 1 Nov 2012 22:08:14 +0530 Subject: i2c: tegra: set irq name as device name When watching the irqs name of tegra i2c, all instances irq name shows as tegra_i2c. Passing the device name properly to have the irq names with instance like tegra-i2c.0, tegra-i2c.1 etc. Signed-off-by: Laxman Dewangan Acked-by: Jean Delvare Signed-off-by: Wolfram Sang diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index f981ac4..dcea77b 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -742,7 +742,7 @@ static int __devinit tegra_i2c_probe(struct platform_device *pdev) } ret = devm_request_irq(&pdev->dev, i2c_dev->irq, - tegra_i2c_isr, 0, pdev->name, i2c_dev); + tegra_i2c_isr, 0, dev_name(&pdev->dev), i2c_dev); if (ret) { dev_err(&pdev->dev, "Failed to request irq %i\n", i2c_dev->irq); return ret; -- cgit v0.10.2 From a5788caa269e446201018bb8879a1dd90f41d32b Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 2 Nov 2012 13:20:42 +0000 Subject: FRV: Add missing linux/export.h #inclusions Add missing linux/export.h #inclusions to the FRV arch. Signed-off-by: David Howells diff --git a/arch/frv/mb93090-mb00/pci-dma-nommu.c b/arch/frv/mb93090-mb00/pci-dma-nommu.c index e47857f..b99c2a7 100644 --- a/arch/frv/mb93090-mb00/pci-dma-nommu.c +++ b/arch/frv/mb93090-mb00/pci-dma-nommu.c @@ -11,6 +11,7 @@ #include #include +#include #include #include #include -- cgit v0.10.2 From 5f0231d97b2d361292b090b81479a68123010376 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 2 Nov 2012 13:20:42 +0000 Subject: FRV: Don't objcopy the GNU build_id note Don't let objcopy transfer the GNU build_id note into the loadable image as it is located at address 0 and the image ends up >3G in size. Signed-off-by: David Howells diff --git a/arch/frv/boot/Makefile b/arch/frv/boot/Makefile index 6ae3254..636d5bb 100644 --- a/arch/frv/boot/Makefile +++ b/arch/frv/boot/Makefile @@ -17,6 +17,8 @@ PARAMS_PHYS = 0x0207c000 INITRD_PHYS = 0x02180000 INITRD_VIRT = 0x02180000 +OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment + # # If you don't define ZRELADDR above, # then it defaults to ZTEXTADDR @@ -32,18 +34,18 @@ Image: $(obj)/Image targets: $(obj)/Image $(obj)/Image: vmlinux FORCE - $(OBJCOPY) -O binary -R .note -R .comment -S vmlinux $@ + $(OBJCOPY) $(OBJCOPYFLAGS) -S vmlinux $@ #$(obj)/Image: $(CONFIGURE) $(SYSTEM) -# $(OBJCOPY) -O binary -R .note -R .comment -g -S $(SYSTEM) $@ +# $(OBJCOPY) $(OBJCOPYFLAGS) -g -S $(SYSTEM) $@ bzImage: zImage zImage: $(CONFIGURE) compressed/$(LINUX) - $(OBJCOPY) -O binary -R .note -R .comment -S compressed/$(LINUX) $@ + $(OBJCOPY) $(OBJCOPYFLAGS) -S compressed/$(LINUX) $@ bootpImage: bootp/bootp - $(OBJCOPY) -O binary -R .note -R .comment -S bootp/bootp $@ + $(OBJCOPY) $(OBJCOPYFLAGS) -S bootp/bootp $@ compressed/$(LINUX): $(LINUX) dep @$(MAKE) -C compressed $(LINUX) -- cgit v0.10.2 From eded09ccf58ab00474ccde547dd525c75dbc28fd Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 2 Nov 2012 13:20:42 +0000 Subject: FRV: gcc-4.1.2 also inlines weak functions gcc-4.1.2 inlines weak functions, which causes FRV to fail when the dummy thread_info_cache_init() gets inlined into start_kernel(). Signed-off-by: David Howells diff --git a/init/main.c b/init/main.c index 9cf77ab..e33e09d 100644 --- a/init/main.c +++ b/init/main.c @@ -442,9 +442,11 @@ void __init __weak smp_setup_processor_id(void) { } +# if THREAD_SIZE >= PAGE_SIZE void __init __weak thread_info_cache_init(void) { } +#endif /* * Set up kernel memory allocators -- cgit v0.10.2 From 1ee6f5669a7eaba0e2f4e0dd0599b56eb8a9a090 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 2 Nov 2012 13:20:42 +0000 Subject: FRV: Fix the preemption handling Fix the preemption handling in FRV code where the PREEMPT_ACTIVE value is incorrectly loaded into the threadinfo flags rather than the threadinfo preemption count. Unfortunately, the code cannot be simply converted to use preempt_schedule_irq() as is because FRV uses virtual interrupt disablement to cut down on the cost of actually disabling interrupts and thus local_irq_enable() doesn't actually enable interrupts. Reported-by: Al Viro Signed-off-by: David Howells cc: Al Viro diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S index ee0beb3..d64c526 100644 --- a/arch/frv/kernel/entry.S +++ b/arch/frv/kernel/entry.S @@ -1086,7 +1086,7 @@ __entry_preempt_need_resched: beq icc0,#1,__entry_return_direct setlos #PREEMPT_ACTIVE,gr5 - sti gr5,@(gr15,#TI_FLAGS) + sti gr5,@(gr15,#TI_PRE_COUNT) andi gr23,#~PSR_PIL,gr23 movgs gr23,psr -- cgit v0.10.2 From e7aa51b2e52274b13be3209e2787d1b2ce9624fd Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 2 Nov 2012 13:20:43 +0000 Subject: FRV: Fix the new-style kernel_thread() stuff The kernel_thread() changes for FRV don't work, and FRV fails to boot, starting with: commit 02ce496f152df87be081a64796498942c433a2fd Author: Al Viro Date: Tue Sep 18 22:18:51 2012 -0400 Subject: frv: split ret_from_fork, simplify kernel_thread() a lot The problem is that the userspace registers are completely cleared when a kernel thread is created and all subsequent user threads are then copied from that. Unfortunately, however, the TBR and PSR registers are restored from the pt_regs and the values they should be set to are clobbered by the memset. Instead, copy across the old user registers as normal, and then merely alter GR8 and GR9 in it if we're going to execute a kernel thread. Signed-off-by: David Howells diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c index e1e3aa1..7e33215 100644 --- a/arch/frv/kernel/process.c +++ b/arch/frv/kernel/process.c @@ -181,6 +181,9 @@ int copy_thread(unsigned long clone_flags, childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE - FRV_FRAME0_SIZE); + /* set up the userspace frame (the only place that the USP is stored) */ + *childregs = *__kernel_frame0_ptr; + p->set_child_tid = p->clear_child_tid = NULL; p->thread.frame = childregs; @@ -191,10 +194,8 @@ int copy_thread(unsigned long clone_flags, p->thread.frame0 = childregs; if (unlikely(!regs)) { - memset(childregs, 0, sizeof(struct pt_regs)); childregs->gr9 = usp; /* function */ childregs->gr8 = arg; - childregs->psr = PSR_S; p->thread.pc = (unsigned long) ret_from_kernel_thread; save_user_regs(p->thread.user); return 0; -- cgit v0.10.2 From 213a79656462176b553c6f9cdf96e14313e43bcf Mon Sep 17 00:00:00 2001 From: Dimitris Papastamos Date: Fri, 2 Nov 2012 13:02:53 +0000 Subject: ASoC: bells: Add missing select of WM0010 Signed-off-by: Dimitris Papastamos Signed-off-by: Mark Brown diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig index e7b8317..fa166bd 100644 --- a/sound/soc/samsung/Kconfig +++ b/sound/soc/samsung/Kconfig @@ -207,6 +207,7 @@ config SND_SOC_BELLS select SND_SOC_WM5102 select SND_SOC_WM5110 select SND_SOC_WM9081 + select SND_SOC_WM0010 config SND_SOC_LOWLAND tristate "Audio support for Wolfson Lowland" -- cgit v0.10.2 From 4868ce57bfe1810262231dd8fe83fbba0ab59f13 Mon Sep 17 00:00:00 2001 From: Dimitris Papastamos Date: Fri, 2 Nov 2012 13:02:54 +0000 Subject: ASoC: bells: Select WM1250-EV1 Springbank audio I/O module Ensure we select the WM1250-EV1 as the current software system configuration demands it. Signed-off-by: Dimitris Papastamos Signed-off-by: Mark Brown diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig index fa166bd..3c7c3a5 100644 --- a/sound/soc/samsung/Kconfig +++ b/sound/soc/samsung/Kconfig @@ -208,6 +208,7 @@ config SND_SOC_BELLS select SND_SOC_WM5110 select SND_SOC_WM9081 select SND_SOC_WM0010 + select SND_SOC_WM1250_EV1 config SND_SOC_LOWLAND tristate "Audio support for Wolfson Lowland" -- cgit v0.10.2 From f55f14752ecaccf7d6a52fd13929b73fcb191f19 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Thu, 1 Nov 2012 15:57:11 -0200 Subject: ASoC: mxs-saif: Fix channel swap for 24-bit format Playing 24-bit format file leads to channel swap on mx28 and the reason is that the current driver performs one write/read to/from the SAIF_DATA register to trigger the transfer. This approach works fine for S16_LE case because SAIF_DATA is a 32-bit register and thus is capable of storing the 16-bit left and right channels, but for the S24_LE case it can only store one channel, so in order to not lose the FIFO sync an extra read/write is needed. Reported-by: Dan Winner Signed-off-by: Fabio Estevam Tested-by: Dan Winner Acked-by: Dong Aisheng Signed-off-by: Mark Brown diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index 93380cc..c294fbb 100644 --- a/sound/soc/mxs/mxs-saif.c +++ b/sound/soc/mxs/mxs-saif.c @@ -523,16 +523,24 @@ static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd, if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { /* - * write a data to saif data register to trigger - * the transfer + * write data to saif data register to trigger + * the transfer. + * For 24-bit format the 32-bit FIFO register stores + * only one channel, so we need to write twice. + * This is also safe for the other non 24-bit formats. */ __raw_writel(0, saif->base + SAIF_DATA); + __raw_writel(0, saif->base + SAIF_DATA); } else { /* - * read a data from saif data register to trigger - * the receive + * read data from saif data register to trigger + * the receive. + * For 24-bit format the 32-bit FIFO register stores + * only one channel, so we need to read twice. + * This is also safe for the other non 24-bit formats. */ __raw_readl(saif->base + SAIF_DATA); + __raw_readl(saif->base + SAIF_DATA); } master_saif->ongoing = 1; -- cgit v0.10.2 From 7b7ade117951dcc5ec947595ea7ff622fa56895e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 15 Oct 2012 10:53:17 -0400 Subject: frv: switch to saner kernel_execve() semantics Signed-off-by: Al Viro diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig index b741250..df2eb4b 100644 --- a/arch/frv/Kconfig +++ b/arch/frv/Kconfig @@ -13,6 +13,7 @@ config FRV select GENERIC_CPU_DEVICES select ARCH_WANT_IPC_PARSE_VERSION select GENERIC_KERNEL_THREAD + select GENERIC_KERNEL_EXECVE config ZONE_DMA bool diff --git a/arch/frv/include/asm/unistd.h b/arch/frv/include/asm/unistd.h index 266a5b2..2358634 100644 --- a/arch/frv/include/asm/unistd.h +++ b/arch/frv/include/asm/unistd.h @@ -30,7 +30,6 @@ #define __ARCH_WANT_SYS_RT_SIGACTION #define __ARCH_WANT_SYS_RT_SIGSUSPEND #define __ARCH_WANT_SYS_EXECVE -#define __ARCH_WANT_KERNEL_EXECVE /* * "Conditional" syscalls diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S index d64c526..b1cd7e8 100644 --- a/arch/frv/kernel/entry.S +++ b/arch/frv/kernel/entry.S @@ -869,11 +869,6 @@ ret_from_kernel_thread: call schedule_tail calll.p @(gr21,gr0) or gr20,gr20,gr8 - bra sys_exit - - .globl ret_from_kernel_execve -ret_from_kernel_execve: - ori gr28,0,sp bra __syscall_exit ################################################################################################### -- cgit v0.10.2 From 90b5c1d7c45eeb622302680ff96ed30c1a2b6f0e Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Wed, 24 Oct 2012 14:54:13 +0800 Subject: PCI/PM: Fix deadlock when unbinding device if parent in D3cold If a PCI device and its parents are put into D3cold, unbinding the device will trigger deadlock as follow: - driver_unbind - device_release_driver - device_lock(dev) <--- previous lock here - __device_release_driver - pm_runtime_get_sync ... - rpm_resume(dev) - rpm_resume(dev->parent) ... - pci_pm_runtime_resume ... - pci_set_power_state - __pci_start_power_transition - pci_wakeup_bus(dev->parent->subordinate) - pci_walk_bus - device_lock(dev) <--- deadlock here If we do not do device_lock in pci_walk_bus, we can avoid deadlock. Device_lock in pci_walk_bus is introduced in commit: d71374dafbba7ec3f67371d3b7e9f6310a588808, corresponding email thread is: https://lkml.org/lkml/2006/5/26/38. The patch author Zhang Yanmin said device_lock is added to pci_walk_bus because: Some error handling functions call pci_walk_bus. For example, PCIe aer. Here we lock the device, so the driver wouldn't detach from the device, as the cb might call driver's callback function. So I fixed the deadlock as follows: - remove device_lock from pci_walk_bus - add device_lock into callback if callback will call driver's callback I checked pci_walk_bus users one by one, and found only PCIe aer needs device lock. Signed-off-by: Huang Ying Signed-off-by: Bjorn Helgaas Acked-by: Rafael J. Wysocki CC: stable@vger.kernel.org # v3.6+ CC: Zhang Yanmin diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 6241fd0..a543746 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -320,10 +320,7 @@ void pci_walk_bus(struct pci_bus *top, int (*cb)(struct pci_dev *, void *), } else next = dev->bus_list.next; - /* Run device routines with the device locked */ - device_lock(&dev->dev); retval = cb(dev, userdata); - device_unlock(&dev->dev); if (retval) break; } diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c index 06bad96..af4e31c 100644 --- a/drivers/pci/pcie/aer/aerdrv_core.c +++ b/drivers/pci/pcie/aer/aerdrv_core.c @@ -213,6 +213,7 @@ static int report_error_detected(struct pci_dev *dev, void *data) struct aer_broadcast_data *result_data; result_data = (struct aer_broadcast_data *) data; + device_lock(&dev->dev); dev->error_state = result_data->state; if (!dev->driver || @@ -231,12 +232,14 @@ static int report_error_detected(struct pci_dev *dev, void *data) dev->driver ? "no AER-aware driver" : "no driver"); } - return 0; + goto out; } err_handler = dev->driver->err_handler; vote = err_handler->error_detected(dev, result_data->state); result_data->result = merge_result(result_data->result, vote); +out: + device_unlock(&dev->dev); return 0; } @@ -247,14 +250,17 @@ static int report_mmio_enabled(struct pci_dev *dev, void *data) struct aer_broadcast_data *result_data; result_data = (struct aer_broadcast_data *) data; + device_lock(&dev->dev); if (!dev->driver || !dev->driver->err_handler || !dev->driver->err_handler->mmio_enabled) - return 0; + goto out; err_handler = dev->driver->err_handler; vote = err_handler->mmio_enabled(dev); result_data->result = merge_result(result_data->result, vote); +out: + device_unlock(&dev->dev); return 0; } @@ -265,14 +271,17 @@ static int report_slot_reset(struct pci_dev *dev, void *data) struct aer_broadcast_data *result_data; result_data = (struct aer_broadcast_data *) data; + device_lock(&dev->dev); if (!dev->driver || !dev->driver->err_handler || !dev->driver->err_handler->slot_reset) - return 0; + goto out; err_handler = dev->driver->err_handler; vote = err_handler->slot_reset(dev); result_data->result = merge_result(result_data->result, vote); +out: + device_unlock(&dev->dev); return 0; } @@ -280,15 +289,18 @@ static int report_resume(struct pci_dev *dev, void *data) { const struct pci_error_handlers *err_handler; + device_lock(&dev->dev); dev->error_state = pci_channel_io_normal; if (!dev->driver || !dev->driver->err_handler || !dev->driver->err_handler->resume) - return 0; + goto out; err_handler = dev->driver->err_handler; err_handler->resume(dev); +out: + device_unlock(&dev->dev); return 0; } -- cgit v0.10.2 From 1d72d9f83df057e71c7951def41138a0230bf737 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 2 Nov 2012 12:05:44 -0400 Subject: frv: fix the broken preempt Just get %icc2 into the state we would have after local_irq_disable() and physical IRQ having happened since then. Then we can simply use preempt_schedule_irq() and be done with the whole mess. Acked-by: David Howells Signed-off-by: Al Viro diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S index b1cd7e8..dfcd263 100644 --- a/arch/frv/kernel/entry.S +++ b/arch/frv/kernel/entry.S @@ -1075,27 +1075,10 @@ __entry_return_from_kernel_interrupt: subicc gr5,#0,gr0,icc0 beq icc0,#0,__entry_return_direct -__entry_preempt_need_resched: - ldi @(gr15,#TI_FLAGS),gr4 - andicc gr4,#_TIF_NEED_RESCHED,gr0,icc0 - beq icc0,#1,__entry_return_direct - - setlos #PREEMPT_ACTIVE,gr5 - sti gr5,@(gr15,#TI_PRE_COUNT) - - andi gr23,#~PSR_PIL,gr23 - movgs gr23,psr - - call schedule - sti gr0,@(gr15,#TI_PRE_COUNT) - - movsg psr,gr23 - ori gr23,#PSR_PIL_14,gr23 - movgs gr23,psr - bra __entry_preempt_need_resched -#else - bra __entry_return_direct + subcc gr0,gr0,gr0,icc2 /* set Z and clear C */ + call preempt_schedule_irq #endif + bra __entry_return_direct ############################################################################### -- cgit v0.10.2 From d9b482c8ba1973a189f2d4c8175d405b87fbf2d7 Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Tue, 30 Oct 2012 14:45:57 -0400 Subject: hashtable: introduce a small and naive hashtable This hashtable implementation is using hlist buckets to provide a simple hashtable to prevent it from getting reimplemented all over the kernel. Signed-off-by: Sasha Levin [ Merging this now, so that subsystems can start applying Sasha's patches that use this - Linus ] Signed-off-by: Linus Torvalds diff --git a/include/linux/hashtable.h b/include/linux/hashtable.h new file mode 100644 index 0000000..227c624 --- /dev/null +++ b/include/linux/hashtable.h @@ -0,0 +1,192 @@ +/* + * Statically sized hash table implementation + * (C) 2012 Sasha Levin + */ + +#ifndef _LINUX_HASHTABLE_H +#define _LINUX_HASHTABLE_H + +#include +#include +#include +#include +#include + +#define DEFINE_HASHTABLE(name, bits) \ + struct hlist_head name[1 << (bits)] = \ + { [0 ... ((1 << (bits)) - 1)] = HLIST_HEAD_INIT } + +#define DECLARE_HASHTABLE(name, bits) \ + struct hlist_head name[1 << (bits)] + +#define HASH_SIZE(name) (ARRAY_SIZE(name)) +#define HASH_BITS(name) ilog2(HASH_SIZE(name)) + +/* Use hash_32 when possible to allow for fast 32bit hashing in 64bit kernels. */ +#define hash_min(val, bits) \ + (sizeof(val) <= 4 ? hash_32(val, bits) : hash_long(val, bits)) + +static inline void __hash_init(struct hlist_head *ht, unsigned int sz) +{ + unsigned int i; + + for (i = 0; i < sz; i++) + INIT_HLIST_HEAD(&ht[i]); +} + +/** + * hash_init - initialize a hash table + * @hashtable: hashtable to be initialized + * + * Calculates the size of the hashtable from the given parameter, otherwise + * same as hash_init_size. + * + * This has to be a macro since HASH_BITS() will not work on pointers since + * it calculates the size during preprocessing. + */ +#define hash_init(hashtable) __hash_init(hashtable, HASH_SIZE(hashtable)) + +/** + * hash_add - add an object to a hashtable + * @hashtable: hashtable to add to + * @node: the &struct hlist_node of the object to be added + * @key: the key of the object to be added + */ +#define hash_add(hashtable, node, key) \ + hlist_add_head(node, &hashtable[hash_min(key, HASH_BITS(hashtable))]) + +/** + * hash_add_rcu - add an object to a rcu enabled hashtable + * @hashtable: hashtable to add to + * @node: the &struct hlist_node of the object to be added + * @key: the key of the object to be added + */ +#define hash_add_rcu(hashtable, node, key) \ + hlist_add_head_rcu(node, &hashtable[hash_min(key, HASH_BITS(hashtable))]) + +/** + * hash_hashed - check whether an object is in any hashtable + * @node: the &struct hlist_node of the object to be checked + */ +static inline bool hash_hashed(struct hlist_node *node) +{ + return !hlist_unhashed(node); +} + +static inline bool __hash_empty(struct hlist_head *ht, unsigned int sz) +{ + unsigned int i; + + for (i = 0; i < sz; i++) + if (!hlist_empty(&ht[i])) + return false; + + return true; +} + +/** + * hash_empty - check whether a hashtable is empty + * @hashtable: hashtable to check + * + * This has to be a macro since HASH_BITS() will not work on pointers since + * it calculates the size during preprocessing. + */ +#define hash_empty(hashtable) __hash_empty(hashtable, HASH_SIZE(hashtable)) + +/** + * hash_del - remove an object from a hashtable + * @node: &struct hlist_node of the object to remove + */ +static inline void hash_del(struct hlist_node *node) +{ + hlist_del_init(node); +} + +/** + * hash_del_rcu - remove an object from a rcu enabled hashtable + * @node: &struct hlist_node of the object to remove + */ +static inline void hash_del_rcu(struct hlist_node *node) +{ + hlist_del_init_rcu(node); +} + +/** + * hash_for_each - iterate over a hashtable + * @name: hashtable to iterate + * @bkt: integer to use as bucket loop cursor + * @node: the &struct list_head to use as a loop cursor for each entry + * @obj: the type * to use as a loop cursor for each entry + * @member: the name of the hlist_node within the struct + */ +#define hash_for_each(name, bkt, node, obj, member) \ + for ((bkt) = 0, node = NULL; node == NULL && (bkt) < HASH_SIZE(name); (bkt)++)\ + hlist_for_each_entry(obj, node, &name[bkt], member) + +/** + * hash_for_each_rcu - iterate over a rcu enabled hashtable + * @name: hashtable to iterate + * @bkt: integer to use as bucket loop cursor + * @node: the &struct list_head to use as a loop cursor for each entry + * @obj: the type * to use as a loop cursor for each entry + * @member: the name of the hlist_node within the struct + */ +#define hash_for_each_rcu(name, bkt, node, obj, member) \ + for ((bkt) = 0, node = NULL; node == NULL && (bkt) < HASH_SIZE(name); (bkt)++)\ + hlist_for_each_entry_rcu(obj, node, &name[bkt], member) + +/** + * hash_for_each_safe - iterate over a hashtable safe against removal of + * hash entry + * @name: hashtable to iterate + * @bkt: integer to use as bucket loop cursor + * @node: the &struct list_head to use as a loop cursor for each entry + * @tmp: a &struct used for temporary storage + * @obj: the type * to use as a loop cursor for each entry + * @member: the name of the hlist_node within the struct + */ +#define hash_for_each_safe(name, bkt, node, tmp, obj, member) \ + for ((bkt) = 0, node = NULL; node == NULL && (bkt) < HASH_SIZE(name); (bkt)++)\ + hlist_for_each_entry_safe(obj, node, tmp, &name[bkt], member) + +/** + * hash_for_each_possible - iterate over all possible objects hashing to the + * same bucket + * @name: hashtable to iterate + * @obj: the type * to use as a loop cursor for each entry + * @node: the &struct list_head to use as a loop cursor for each entry + * @member: the name of the hlist_node within the struct + * @key: the key of the objects to iterate over + */ +#define hash_for_each_possible(name, obj, node, member, key) \ + hlist_for_each_entry(obj, node, &name[hash_min(key, HASH_BITS(name))], member) + +/** + * hash_for_each_possible_rcu - iterate over all possible objects hashing to the + * same bucket in an rcu enabled hashtable + * in a rcu enabled hashtable + * @name: hashtable to iterate + * @obj: the type * to use as a loop cursor for each entry + * @node: the &struct list_head to use as a loop cursor for each entry + * @member: the name of the hlist_node within the struct + * @key: the key of the objects to iterate over + */ +#define hash_for_each_possible_rcu(name, obj, node, member, key) \ + hlist_for_each_entry_rcu(obj, node, &name[hash_min(key, HASH_BITS(name))], member) + +/** + * hash_for_each_possible_safe - iterate over all possible objects hashing to the + * same bucket safe against removals + * @name: hashtable to iterate + * @obj: the type * to use as a loop cursor for each entry + * @node: the &struct list_head to use as a loop cursor for each entry + * @tmp: a &struct used for temporary storage + * @member: the name of the hlist_node within the struct + * @key: the key of the objects to iterate over + */ +#define hash_for_each_possible_safe(name, obj, node, tmp, member, key) \ + hlist_for_each_entry_safe(obj, node, tmp, \ + &name[hash_min(key, HASH_BITS(name))], member) + + +#endif -- cgit v0.10.2 From 998f40b550f257e436485291802fa938e4cf580f Mon Sep 17 00:00:00 2001 From: Weston Andros Adamson Date: Fri, 2 Nov 2012 18:00:56 -0400 Subject: NFS4: nfs4_opendata_access should return errno Return errno - not an NFS4ERR_. This worked because NFS4ERR_ACCESS == EACCES. Signed-off-by: Weston Andros Adamson Signed-off-by: Trond Myklebust diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 091baab..5eec442 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1749,7 +1749,7 @@ static int nfs4_opendata_access(struct rpc_cred *cred, /* even though OPEN succeeded, access is denied. Close the file */ nfs4_close_state(state, fmode); - return -NFS4ERR_ACCESS; + return -EACCES; } /* -- cgit v0.10.2 From 3ff2de9ba1a2e22e548979dbcd46e999b22c93d8 Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Wed, 24 Oct 2012 14:54:14 +0800 Subject: PCI/PM: Resume device before shutdown Some actions during shutdown need device to be in D0 state, such as MSI shutdown etc, so resume device before shutdown. Without this patch, a device may not be enumerated after a kexec because the corresponding bridge is not in D0, so that configuration space of the device is not accessible. Signed-off-by: Huang Ying Signed-off-by: Bjorn Helgaas Acked-by: Rafael J. Wysocki CC: stable@vger.kernel.org # v3.6+ diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 94c6e2a..6c94fc9 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -398,6 +398,8 @@ static void pci_device_shutdown(struct device *dev) struct pci_dev *pci_dev = to_pci_dev(dev); struct pci_driver *drv = pci_dev->driver; + pm_runtime_resume(dev); + if (drv && drv->shutdown) drv->shutdown(pci_dev); pci_msi_shutdown(pci_dev); @@ -408,16 +410,6 @@ static void pci_device_shutdown(struct device *dev) * continue to do DMA */ pci_disable_device(pci_dev); - - /* - * Devices may be enabled to wake up by runtime PM, but they need not - * be supposed to wake up the system from its "power off" state (e.g. - * ACPI S5). Therefore disable wakeup for all devices that aren't - * supposed to wake up the system at this point. The state argument - * will be ignored by pci_enable_wake(). - */ - if (!device_may_wakeup(dev)) - pci_enable_wake(pci_dev, PCI_UNKNOWN, false); } #ifdef CONFIG_PM -- cgit v0.10.2 From 2b674047bef23d49a7ca8ec32f4b9e4e12588621 Mon Sep 17 00:00:00 2001 From: Dmitry Kravkov Date: Sun, 28 Oct 2012 21:59:04 +0000 Subject: bnx2x: fix HW initialization using fw 7.8.x Since commit 96bed4b9 (use FW 7.8.2) BRB HW block needs to be initialized using fw values for all devices. Otherwise ETS on 57712/578xx will not work. Signed-off-by: Dmitry Kravkov Signed-off-by: Ariel Elior Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index f23e8c0..bd1fd3d 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -6794,8 +6794,9 @@ static int bnx2x_init_hw_port(struct bnx2x *bp) bnx2x_init_block(bp, BLOCK_DORQ, init_phase); + bnx2x_init_block(bp, BLOCK_BRB1, init_phase); + if (CHIP_IS_E1(bp) || CHIP_IS_E1H(bp)) { - bnx2x_init_block(bp, BLOCK_BRB1, init_phase); if (IS_MF(bp)) low = ((bp->flags & ONE_PORT_FLAG) ? 160 : 246); -- cgit v0.10.2 From 57c10b61c84bfed68b1b317d6f507a392724b9c4 Mon Sep 17 00:00:00 2001 From: Peter Senna Tschudin Date: Sun, 28 Oct 2012 06:12:00 +0000 Subject: drivers/net/ethernet/nxp/lpc_eth.c: Call mdiobus_unregister before mdiobus_free Based on commit b27393aecf66199f5ddad37c302d3e0cfadbe6c0 Calling mdiobus_free without calling mdiobus_unregister causes BUG_ON(). This patch fixes the issue. The semantic patch that found this issue(http://coccinelle.lip6.fr/): // @@ expression E; @@ ... when != mdiobus_unregister(E); + mdiobus_unregister(E); mdiobus_free(E); // Signed-off-by: Peter Senna Tschudin Tested-by: Roland Stigge Tested-by: Alexandre Pereira da Silva Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c index 53743f7..af8b414 100644 --- a/drivers/net/ethernet/nxp/lpc_eth.c +++ b/drivers/net/ethernet/nxp/lpc_eth.c @@ -1524,6 +1524,7 @@ static int lpc_eth_drv_remove(struct platform_device *pdev) pldat->dma_buff_base_p); free_irq(ndev->irq, ndev); iounmap(pldat->net_base); + mdiobus_unregister(pldat->mii_bus); mdiobus_free(pldat->mii_bus); clk_disable(pldat->clk); clk_put(pldat->clk); -- cgit v0.10.2 From aa731872f7d33dcb8b54dad0cfb82d4e4d195d7e Mon Sep 17 00:00:00 2001 From: Peter Senna Tschudin Date: Sun, 28 Oct 2012 06:12:01 +0000 Subject: drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before mdiobus_free Based on commit b27393aecf66199f5ddad37c302d3e0cfadbe6c0 Calling mdiobus_free without calling mdiobus_unregister causes BUG_ON(). This patch fixes the issue. The semantic patch that found this issue(http://coccinelle.lip6.fr/): // @@ expression E; @@ ... when != mdiobus_unregister(E); + mdiobus_unregister(E); mdiobus_free(E); // Signed-off-by: Peter Senna Tschudin Signed-off-by: David S. Miller diff --git a/drivers/net/phy/mdio-bitbang.c b/drivers/net/phy/mdio-bitbang.c index daec9b0..6428fcb 100644 --- a/drivers/net/phy/mdio-bitbang.c +++ b/drivers/net/phy/mdio-bitbang.c @@ -234,6 +234,7 @@ void free_mdio_bitbang(struct mii_bus *bus) struct mdiobb_ctrl *ctrl = bus->priv; module_put(ctrl->ops->owner); + mdiobus_unregister(bus); mdiobus_free(bus); } EXPORT_SYMBOL(free_mdio_bitbang); -- cgit v0.10.2 From e3c98512780ae2cfb90be2152ab35294439bb7bb Mon Sep 17 00:00:00 2001 From: Vipul Pandya Date: Mon, 29 Oct 2012 02:02:36 +0000 Subject: cxgb4: Fix unable to get UP event from the LLD If T4 configuration file gets loaded from the /lib/firmware/cxgb4/ directory then offload capabilities of the cards were getting disabled during initialization. Hence ULDs do not get an UP event from the LLD. Signed-off-by: Jay Hernandez Signed-off-by: Vipul Pandya Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index c1cde11..0df1284 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -3416,16 +3416,6 @@ static int adap_init0_config(struct adapter *adapter, int reset) finicsum, cfcsum); /* - * If we're a pure NIC driver then disable all offloading facilities. - * This will allow the firmware to optimize aspects of the hardware - * configuration which will result in improved performance. - */ - caps_cmd.ofldcaps = 0; - caps_cmd.iscsicaps = 0; - caps_cmd.rdmacaps = 0; - caps_cmd.fcoecaps = 0; - - /* * And now tell the firmware to use the configuration we just loaded. */ caps_cmd.op_to_write = -- cgit v0.10.2 From 608f62b996c6e140ff7515abe75305aed4726b33 Mon Sep 17 00:00:00 2001 From: Devendra Naga Date: Wed, 31 Oct 2012 17:46:10 +0900 Subject: thermal: solve compilation errors in rcar_thermal MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit following were the errors reported drivers/thermal/rcar_thermal.c: In function ‘rcar_thermal_probe’: drivers/thermal/rcar_thermal.c:214:10: warning: passing argument 3 of ‘thermal_zone_device_register’ makes integer from pointer without a cast [enabled by default] include/linux/thermal.h:166:29: note: expected ‘int’ but argument is of type ‘struct rcar_thermal_priv *’ drivers/thermal/rcar_thermal.c:214:10: error: too few arguments to function ‘thermal_zone_device_register’ include/linux/thermal.h:166:29: note: declared here make[1]: *** [drivers/thermal/rcar_thermal.o] Error 1 make: *** [drivers/thermal/rcar_thermal.o] Error 2 with gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) Signed-off-by: Devendra Naga Signed-off-by: Kuninori Morimoto Signed-off-by: Zhang Rui diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c index d445271..f7a1b57 100644 --- a/drivers/thermal/rcar_thermal.c +++ b/drivers/thermal/rcar_thermal.c @@ -210,7 +210,7 @@ static int rcar_thermal_probe(struct platform_device *pdev) goto error_free_priv; } - zone = thermal_zone_device_register("rcar_thermal", 0, priv, + zone = thermal_zone_device_register("rcar_thermal", 0, 0, priv, &rcar_thermal_zone_ops, 0, 0); if (IS_ERR(zone)) { dev_err(&pdev->dev, "thermal zone device is NULL\n"); -- cgit v0.10.2 From fba4e087361605d1eed63343bb08811f097c83ee Mon Sep 17 00:00:00 2001 From: Igor Murzov Date: Sat, 13 Oct 2012 04:41:25 +0400 Subject: ACPI video: Ignore errors after _DOD evaluation. There are systems where video module known to work fine regardless of broken _DOD and ignoring returned value here doesn't cause any issues later. This should fix brightness controls on some laptops. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47861 Signed-off-by: Igor Murzov Reviewed-by: Sergey V Signed-off-by: Zhang Rui diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index f94d4c8..0230cb6 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -1345,12 +1345,15 @@ static int acpi_video_bus_get_devices(struct acpi_video_bus *video, struct acpi_device *device) { - int status; + int status = 0; struct acpi_device *dev; - status = acpi_video_device_enumerate(video); - if (status) - return status; + /* + * There are systems where video module known to work fine regardless + * of broken _DOD and ignoring returned value here doesn't cause + * any issues later. + */ + acpi_video_device_enumerate(video); list_for_each_entry(dev, &device->children, node) { -- cgit v0.10.2 From 3ae53b1e13e1ca7928a3dd2d51ea5417b618560c Mon Sep 17 00:00:00 2001 From: Jonghwan Choi Date: Tue, 23 Oct 2012 14:54:42 +0800 Subject: exynos4_tmu_driver_ids should be exynos_tmu_driver_ids. Signed-off-by: Jonghwan Choi Reviewed-by: Amit Daniel Kachhap Signed-off-by: Zhang Rui diff --git a/drivers/thermal/exynos_thermal.c b/drivers/thermal/exynos_thermal.c index fd03e85..6dd29e4 100644 --- a/drivers/thermal/exynos_thermal.c +++ b/drivers/thermal/exynos_thermal.c @@ -815,7 +815,7 @@ static struct platform_device_id exynos_tmu_driver_ids[] = { }, { }, }; -MODULE_DEVICE_TABLE(platform, exynos4_tmu_driver_ids); +MODULE_DEVICE_TABLE(platform, exynos_tmu_driver_ids); static inline struct exynos_tmu_platform_data *exynos_get_driver_data( struct platform_device *pdev) -- cgit v0.10.2 From 789336360e0a2aeb9750c16ab704a02cbe035e9e Mon Sep 17 00:00:00 2001 From: Tom Parkin Date: Mon, 29 Oct 2012 23:41:48 +0000 Subject: l2tp: fix oops in l2tp_eth_create() error path When creating an L2TPv3 Ethernet session, if register_netdev() should fail for any reason (for example, automatic naming for "l2tpeth%d" interfaces hits the 32k-interface limit), the netdev is freed in the error path. However, the l2tp_eth_sess structure's dev pointer is left uncleared, and this results in l2tp_eth_delete() then attempting to unregister the same netdev later in the session teardown. This results in an oops. To avoid this, clear the session dev pointer in the error path. Signed-off-by: Tom Parkin Signed-off-by: David S. Miller diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c index 37b8b8b..76125c5 100644 --- a/net/l2tp/l2tp_eth.c +++ b/net/l2tp/l2tp_eth.c @@ -291,6 +291,7 @@ static int l2tp_eth_create(struct net *net, u32 tunnel_id, u32 session_id, u32 p out_del_dev: free_netdev(dev); + spriv->dev = NULL; out_del_session: l2tp_session_delete(session); out: -- cgit v0.10.2 From a4d7e485bca65bd516fced77b03f92419308df72 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 29 Oct 2012 07:30:49 +0000 Subject: vmxnet3: must split too big fragments vmxnet3 has a 16Kbytes limit per tx descriptor, that happened to work as long as we provided PAGE_SIZE fragments. Our stack can now build larger fragments, so we need to split them to the 16kbytes boundary. Signed-off-by: Eric Dumazet Reported-by: jongman heo Tested-by: jongman heo Cc: Shreyas Bhatewara Reviewed-by: Bhavesh Davda Signed-off-by: Shreyas Bhatewara Signed-off-by: David S. Miller diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index ce9d4f2..0ae1bcc 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -744,28 +744,43 @@ vmxnet3_map_pkt(struct sk_buff *skb, struct vmxnet3_tx_ctx *ctx, for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i]; + u32 buf_size; - tbi = tq->buf_info + tq->tx_ring.next2fill; - tbi->map_type = VMXNET3_MAP_PAGE; - tbi->dma_addr = skb_frag_dma_map(&adapter->pdev->dev, frag, - 0, skb_frag_size(frag), - DMA_TO_DEVICE); + buf_offset = 0; + len = skb_frag_size(frag); + while (len) { + tbi = tq->buf_info + tq->tx_ring.next2fill; + if (len < VMXNET3_MAX_TX_BUF_SIZE) { + buf_size = len; + dw2 |= len; + } else { + buf_size = VMXNET3_MAX_TX_BUF_SIZE; + /* spec says that for TxDesc.len, 0 == 2^14 */ + } + tbi->map_type = VMXNET3_MAP_PAGE; + tbi->dma_addr = skb_frag_dma_map(&adapter->pdev->dev, frag, + buf_offset, buf_size, + DMA_TO_DEVICE); - tbi->len = skb_frag_size(frag); + tbi->len = buf_size; - gdesc = tq->tx_ring.base + tq->tx_ring.next2fill; - BUG_ON(gdesc->txd.gen == tq->tx_ring.gen); + gdesc = tq->tx_ring.base + tq->tx_ring.next2fill; + BUG_ON(gdesc->txd.gen == tq->tx_ring.gen); - gdesc->txd.addr = cpu_to_le64(tbi->dma_addr); - gdesc->dword[2] = cpu_to_le32(dw2 | skb_frag_size(frag)); - gdesc->dword[3] = 0; + gdesc->txd.addr = cpu_to_le64(tbi->dma_addr); + gdesc->dword[2] = cpu_to_le32(dw2); + gdesc->dword[3] = 0; - dev_dbg(&adapter->netdev->dev, - "txd[%u]: 0x%llu %u %u\n", - tq->tx_ring.next2fill, le64_to_cpu(gdesc->txd.addr), - le32_to_cpu(gdesc->dword[2]), gdesc->dword[3]); - vmxnet3_cmd_ring_adv_next2fill(&tq->tx_ring); - dw2 = tq->tx_ring.gen << VMXNET3_TXD_GEN_SHIFT; + dev_dbg(&adapter->netdev->dev, + "txd[%u]: 0x%llu %u %u\n", + tq->tx_ring.next2fill, le64_to_cpu(gdesc->txd.addr), + le32_to_cpu(gdesc->dword[2]), gdesc->dword[3]); + vmxnet3_cmd_ring_adv_next2fill(&tq->tx_ring); + dw2 = tq->tx_ring.gen << VMXNET3_TXD_GEN_SHIFT; + + len -= buf_size; + buf_offset += buf_size; + } } ctx->eop_txd = gdesc; @@ -886,6 +901,18 @@ vmxnet3_prepare_tso(struct sk_buff *skb, } } +static int txd_estimate(const struct sk_buff *skb) +{ + int count = VMXNET3_TXD_NEEDED(skb_headlen(skb)) + 1; + int i; + + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { + const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i]; + + count += VMXNET3_TXD_NEEDED(skb_frag_size(frag)); + } + return count; +} /* * Transmits a pkt thru a given tq @@ -914,9 +941,7 @@ vmxnet3_tq_xmit(struct sk_buff *skb, struct vmxnet3_tx_queue *tq, union Vmxnet3_GenericDesc tempTxDesc; #endif - /* conservatively estimate # of descriptors to use */ - count = VMXNET3_TXD_NEEDED(skb_headlen(skb)) + - skb_shinfo(skb)->nr_frags + 1; + count = txd_estimate(skb); ctx.ipv4 = (vlan_get_protocol(skb) == cpu_to_be16(ETH_P_IP)); -- cgit v0.10.2 From c454e6111d1ef4268fe98e87087216e51c2718c3 Mon Sep 17 00:00:00 2001 From: Pavel Emelyanov Date: Mon, 29 Oct 2012 05:05:33 +0000 Subject: tcp-repair: Handle zero-length data put in rcv queue When sending data into a tcp socket in repair state we should check for the amount of data being 0 explicitly. Otherwise we'll have an skb with seq == end_seq in rcv queue, but tcp doesn't expect this to happen (in particular a warn_on in tcp_recvmsg shoots). Signed-off-by: Pavel Emelyanov Reported-by: Giorgos Mavrikas Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 1db6639..2c2b13a 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -4529,6 +4529,9 @@ int tcp_send_rcvq(struct sock *sk, struct msghdr *msg, size_t size) struct tcphdr *th; bool fragstolen; + if (size == 0) + return 0; + skb = alloc_skb(size + sizeof(*th), sk->sk_allocation); if (!skb) goto err; -- cgit v0.10.2 From 36960e440ccf94349c09fb944930d3bfe4bc473f Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Sat, 3 Nov 2012 09:37:28 -0400 Subject: cifs: fix potential buffer overrun in cifs.idmap handling code The userspace cifs.idmap program generally works with the wbclient libs to generate binary SIDs in userspace. That program defines the struct that holds these values as having a max of 15 subauthorities. The kernel idmapping code however limits that value to 5. When the kernel copies those values around though, it doesn't sanity check the num_subauths value handed back from userspace or from the server. It's possible therefore for userspace to hand us back a bogus num_subauths value (or one that's valid, but greater than 5) that could cause the kernel to walk off the end of the cifs_sid->sub_auths array. Fix this by defining a new routine for copying sids and using that in all of the places that copy it. If we end up with a sid that's longer than expected then this approach will just lop off the "extra" subauths, but that's basically what the code does today already. Better approaches might be to fix this code to reject SIDs with >5 subauths, or fix it to handle the subauths array dynamically. At the same time, change the kernel to check the length of the data returned by userspace. If it's shorter than struct cifs_sid, reject it and return -EIO. If that happens we'll end up with fields that are basically uninitialized. Long term, it might make sense to redefine cifs_sid using a flexarray at the end, to allow for variable-length subauth lists, and teach the code to handle the case where the subauths array being passed in from userspace is shorter than 5 elements. Note too, that I don't consider this a security issue since you'd need a compromised cifs.idmap program. If you have that, you can do all sorts of nefarious stuff. Still, this is probably reasonable for stable. Cc: stable@kernel.org Reviewed-by: Shirish Pargaonkar Signed-off-by: Jeff Layton diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c index fc783e2..0fb15bb 100644 --- a/fs/cifs/cifsacl.c +++ b/fs/cifs/cifsacl.c @@ -225,6 +225,13 @@ sid_to_str(struct cifs_sid *sidptr, char *sidstr) } static void +cifs_copy_sid(struct cifs_sid *dst, const struct cifs_sid *src) +{ + memcpy(dst, src, sizeof(*dst)); + dst->num_subauth = min_t(u8, src->num_subauth, NUM_SUBAUTHS); +} + +static void id_rb_insert(struct rb_root *root, struct cifs_sid *sidptr, struct cifs_sid_id **psidid, char *typestr) { @@ -248,7 +255,7 @@ id_rb_insert(struct rb_root *root, struct cifs_sid *sidptr, } } - memcpy(&(*psidid)->sid, sidptr, sizeof(struct cifs_sid)); + cifs_copy_sid(&(*psidid)->sid, sidptr); (*psidid)->time = jiffies - (SID_MAP_RETRY + 1); (*psidid)->refcount = 0; @@ -354,7 +361,7 @@ id_to_sid(unsigned long cid, uint sidtype, struct cifs_sid *ssid) * any fields of the node after a reference is put . */ if (test_bit(SID_ID_MAPPED, &psidid->state)) { - memcpy(ssid, &psidid->sid, sizeof(struct cifs_sid)); + cifs_copy_sid(ssid, &psidid->sid); psidid->time = jiffies; /* update ts for accessing */ goto id_sid_out; } @@ -370,14 +377,14 @@ id_to_sid(unsigned long cid, uint sidtype, struct cifs_sid *ssid) if (IS_ERR(sidkey)) { rc = -EINVAL; cFYI(1, "%s: Can't map and id to a SID", __func__); + } else if (sidkey->datalen < sizeof(struct cifs_sid)) { + rc = -EIO; + cFYI(1, "%s: Downcall contained malformed key " + "(datalen=%hu)", __func__, sidkey->datalen); } else { lsid = (struct cifs_sid *)sidkey->payload.data; - memcpy(&psidid->sid, lsid, - sidkey->datalen < sizeof(struct cifs_sid) ? - sidkey->datalen : sizeof(struct cifs_sid)); - memcpy(ssid, &psidid->sid, - sidkey->datalen < sizeof(struct cifs_sid) ? - sidkey->datalen : sizeof(struct cifs_sid)); + cifs_copy_sid(&psidid->sid, lsid); + cifs_copy_sid(ssid, &psidid->sid); set_bit(SID_ID_MAPPED, &psidid->state); key_put(sidkey); kfree(psidid->sidstr); @@ -396,7 +403,7 @@ id_to_sid(unsigned long cid, uint sidtype, struct cifs_sid *ssid) return rc; } if (test_bit(SID_ID_MAPPED, &psidid->state)) - memcpy(ssid, &psidid->sid, sizeof(struct cifs_sid)); + cifs_copy_sid(ssid, &psidid->sid); else rc = -EINVAL; } @@ -675,8 +682,6 @@ int compare_sids(const struct cifs_sid *ctsid, const struct cifs_sid *cwsid) static void copy_sec_desc(const struct cifs_ntsd *pntsd, struct cifs_ntsd *pnntsd, __u32 sidsoffset) { - int i; - struct cifs_sid *owner_sid_ptr, *group_sid_ptr; struct cifs_sid *nowner_sid_ptr, *ngroup_sid_ptr; @@ -692,26 +697,14 @@ static void copy_sec_desc(const struct cifs_ntsd *pntsd, owner_sid_ptr = (struct cifs_sid *)((char *)pntsd + le32_to_cpu(pntsd->osidoffset)); nowner_sid_ptr = (struct cifs_sid *)((char *)pnntsd + sidsoffset); - - nowner_sid_ptr->revision = owner_sid_ptr->revision; - nowner_sid_ptr->num_subauth = owner_sid_ptr->num_subauth; - for (i = 0; i < 6; i++) - nowner_sid_ptr->authority[i] = owner_sid_ptr->authority[i]; - for (i = 0; i < 5; i++) - nowner_sid_ptr->sub_auth[i] = owner_sid_ptr->sub_auth[i]; + cifs_copy_sid(nowner_sid_ptr, owner_sid_ptr); /* copy group sid */ group_sid_ptr = (struct cifs_sid *)((char *)pntsd + le32_to_cpu(pntsd->gsidoffset)); ngroup_sid_ptr = (struct cifs_sid *)((char *)pnntsd + sidsoffset + sizeof(struct cifs_sid)); - - ngroup_sid_ptr->revision = group_sid_ptr->revision; - ngroup_sid_ptr->num_subauth = group_sid_ptr->num_subauth; - for (i = 0; i < 6; i++) - ngroup_sid_ptr->authority[i] = group_sid_ptr->authority[i]; - for (i = 0; i < 5; i++) - ngroup_sid_ptr->sub_auth[i] = group_sid_ptr->sub_auth[i]; + cifs_copy_sid(ngroup_sid_ptr, group_sid_ptr); return; } @@ -1120,8 +1113,7 @@ static int build_sec_desc(struct cifs_ntsd *pntsd, struct cifs_ntsd *pnntsd, kfree(nowner_sid_ptr); return rc; } - memcpy(owner_sid_ptr, nowner_sid_ptr, - sizeof(struct cifs_sid)); + cifs_copy_sid(owner_sid_ptr, nowner_sid_ptr); kfree(nowner_sid_ptr); *aclflag = CIFS_ACL_OWNER; } @@ -1139,8 +1131,7 @@ static int build_sec_desc(struct cifs_ntsd *pntsd, struct cifs_ntsd *pnntsd, kfree(ngroup_sid_ptr); return rc; } - memcpy(group_sid_ptr, ngroup_sid_ptr, - sizeof(struct cifs_sid)); + cifs_copy_sid(group_sid_ptr, ngroup_sid_ptr); kfree(ngroup_sid_ptr); *aclflag = CIFS_ACL_GROUP; } -- cgit v0.10.2 From d145f7ec23b6366e2b75442eaefafa11077ed568 Mon Sep 17 00:00:00 2001 From: Xiaotian Feng Date: Tue, 30 Oct 2012 22:06:01 +0000 Subject: tipc: do not use tasklet_disable before tasklet_kill If tasklet_disable() is called before related tasklet handled, tasklet_kill will never be finished. tasklet_kill is enough. Signed-off-by: Xiaotian Feng Cc: Jon Maloy Cc: Allan Stephens Cc: "David S. Miller" Cc: netdev@vger.kernel.org Cc: tipc-discussion@lists.sourceforge.net Signed-off-by: David S. Miller diff --git a/net/tipc/handler.c b/net/tipc/handler.c index 111ff83..b36f0fc 100644 --- a/net/tipc/handler.c +++ b/net/tipc/handler.c @@ -116,7 +116,6 @@ void tipc_handler_stop(void) return; handler_enabled = 0; - tasklet_disable(&tipc_tasklet); tasklet_kill(&tipc_tasklet); spin_lock_bh(&qitem_lock); -- cgit v0.10.2 From 175c0dffef310fc7d7f026ca4a7682beb2fbd8ec Mon Sep 17 00:00:00 2001 From: Xiaotian Feng Date: Wed, 31 Oct 2012 00:29:57 +0000 Subject: drivers/net: use tasklet_kill in device remove/close process Some driver uses tasklet_disable in device remove/close process, tasklet_disable will inc tasklet->count and return. If the tasklet is not handled yet because some softirq pressure, the tasklet will placed on the tasklet_vec, never have a chance to excute. This might lead to ksoftirqd heavy loaded, wakeup with pending_softirq, but tasklet is disabled. tasklet_kill should be used in this case. Signed-off-by: Xiaotian Feng Cc: "David S. Miller" Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/jme.c b/drivers/net/ethernet/jme.c index f8064df..92317e9 100644 --- a/drivers/net/ethernet/jme.c +++ b/drivers/net/ethernet/jme.c @@ -1948,10 +1948,10 @@ jme_close(struct net_device *netdev) JME_NAPI_DISABLE(jme); - tasklet_disable(&jme->linkch_task); - tasklet_disable(&jme->txclean_task); - tasklet_disable(&jme->rxclean_task); - tasklet_disable(&jme->rxempty_task); + tasklet_kill(&jme->linkch_task); + tasklet_kill(&jme->txclean_task); + tasklet_kill(&jme->rxclean_task); + tasklet_kill(&jme->rxempty_task); jme_disable_rx_engine(jme); jme_disable_tx_engine(jme); diff --git a/drivers/net/ethernet/marvell/skge.c b/drivers/net/ethernet/marvell/skge.c index 9b9c2ac..d19a143 100644 --- a/drivers/net/ethernet/marvell/skge.c +++ b/drivers/net/ethernet/marvell/skge.c @@ -4026,7 +4026,7 @@ static void __devexit skge_remove(struct pci_dev *pdev) dev0 = hw->dev[0]; unregister_netdev(dev0); - tasklet_disable(&hw->phy_task); + tasklet_kill(&hw->phy_task); spin_lock_irq(&hw->hw_lock); hw->intr_mask = 0; diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c index 318fee9..e558edd 100644 --- a/drivers/net/ethernet/micrel/ksz884x.c +++ b/drivers/net/ethernet/micrel/ksz884x.c @@ -5407,8 +5407,8 @@ static int netdev_close(struct net_device *dev) /* Delay for receive task to stop scheduling itself. */ msleep(2000 / HZ); - tasklet_disable(&hw_priv->rx_tasklet); - tasklet_disable(&hw_priv->tx_tasklet); + tasklet_kill(&hw_priv->rx_tasklet); + tasklet_kill(&hw_priv->tx_tasklet); free_irq(dev->irq, hw_priv->dev); transmit_cleanup(hw_priv, 0); diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index 0793299..1d04754 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -990,7 +990,7 @@ static int axienet_stop(struct net_device *ndev) axienet_setoptions(ndev, lp->options & ~(XAE_OPTION_TXEN | XAE_OPTION_RXEN)); - tasklet_disable(&lp->dma_err_tasklet); + tasklet_kill(&lp->dma_err_tasklet); free_irq(lp->tx_irq, ndev); free_irq(lp->rx_irq, ndev); diff --git a/drivers/net/wireless/b43legacy/pio.c b/drivers/net/wireless/b43legacy/pio.c index 192251a..282eede 100644 --- a/drivers/net/wireless/b43legacy/pio.c +++ b/drivers/net/wireless/b43legacy/pio.c @@ -382,7 +382,7 @@ static void cancel_transfers(struct b43legacy_pioqueue *queue) { struct b43legacy_pio_txpacket *packet, *tmp_packet; - tasklet_disable(&queue->txtask); + tasklet_kill(&queue->txtask); list_for_each_entry_safe(packet, tmp_packet, &queue->txrunning, list) free_txpacket(packet, 0); -- cgit v0.10.2 From b00e69dee4ccbb3a19989e3d4f1385bc2e3406cd Mon Sep 17 00:00:00 2001 From: Cyril Brulebois Date: Wed, 31 Oct 2012 14:00:46 +0000 Subject: r8169: Fix WoL on RTL8168d/8111d. This regression was spotted between Debian squeeze and Debian wheezy kernels (respectively based on 2.6.32 and 3.2). More info about Wake-on-LAN issues with Realtek's 816x chipsets can be found in the following thread: http://marc.info/?t=132079219400004 Probable regression from d4ed95d796e5126bba51466dc07e287cebc8bd19; more chipsets are likely affected. Tested on top of a 3.2.23 kernel. Reported-by: Florent Fourcot Tested-by: Florent Fourcot Hinted-by: Francois Romieu Signed-off-by: Cyril Brulebois Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index e7ff886..eb6a5e4 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -3827,6 +3827,8 @@ static void rtl_wol_suspend_quirk(struct rtl8169_private *tp) void __iomem *ioaddr = tp->mmio_addr; switch (tp->mac_version) { + case RTL_GIGA_MAC_VER_25: + case RTL_GIGA_MAC_VER_26: case RTL_GIGA_MAC_VER_29: case RTL_GIGA_MAC_VER_30: case RTL_GIGA_MAC_VER_32: -- cgit v0.10.2 From 0481776b7a70f09acf7d9d97c288c3a8403fbfe4 Mon Sep 17 00:00:00 2001 From: Nathan Walp Date: Thu, 1 Nov 2012 12:08:47 +0000 Subject: r8169: allow multicast packets on sub-8168f chipset. RTL_GIGA_MAC_VER_35 includes no multicast hardware filter. Signed-off-by: Nathan Walp Suggested-by: Hayes Wang Acked-by: Francois Romieu Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index eb6a5e4..927aa33 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -4521,6 +4521,9 @@ static void rtl_set_rx_mode(struct net_device *dev) mc_filter[1] = swab32(data); } + if (tp->mac_version == RTL_GIGA_MAC_VER_35) + mc_filter[1] = mc_filter[0] = 0xffffffff; + RTL_W32(MAR0 + 4, mc_filter[1]); RTL_W32(MAR0 + 0, mc_filter[0]); -- cgit v0.10.2 From 87f4d7c1d36f44b0822053b7e5dedc31fdd0ab99 Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Thu, 1 Nov 2012 12:30:16 +0000 Subject: ptp: update adjfreq callback description This patch updates the adjfreq callback description to include a note that the delta in ppb is always relative to the base frequency, and not to the current frequency of the hardware clock. Signed-off-by: Jacob Keller CC: stable@vger.kernel.org [v3.5+] CC: Richard Cochran CC: John Stultz Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h index f2dc6d8..38a9935 100644 --- a/include/linux/ptp_clock_kernel.h +++ b/include/linux/ptp_clock_kernel.h @@ -54,7 +54,8 @@ struct ptp_clock_request { * clock operations * * @adjfreq: Adjusts the frequency of the hardware clock. - * parameter delta: Desired period change in parts per billion. + * parameter delta: Desired frequency offset from nominal frequency + * in parts per billion * * @adjtime: Shifts the time of the hardware clock. * parameter delta: Desired change in nanoseconds. -- cgit v0.10.2 From a7a558fe426adf22b0b979705167146bf16c37fa Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Thu, 1 Nov 2012 16:23:10 +0000 Subject: rtnetlink: Use nlmsg type RTM_NEWNEIGH from dflt fdb dump Change the dflt fdb dump handler to use RTM_NEWNEIGH to be compatible with bridge dump routines. The dump reply from the network driver handlers should match the reply from bridge handler. The fact they were not in the ixgbe case was effectively a bug. This patch resolves it. Applications that were not checking the nlmsg type will continue to work. And now applications that do check the type will work as expected. Signed-off-by: John Fastabend Signed-off-by: David S. Miller diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 76d4c2c..fad649a 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -2192,7 +2192,8 @@ static int nlmsg_populate_fdb(struct sk_buff *skb, goto skip; err = nlmsg_populate_fdb_fill(skb, dev, ha->addr, - portid, seq, 0, NTF_SELF); + portid, seq, + RTM_NEWNEIGH, NTF_SELF); if (err < 0) return err; skip: -- cgit v0.10.2 From 00acda68b587181546d68fb98db1c5c73ee6c16f Mon Sep 17 00:00:00 2001 From: Steve Glendinning Date: Fri, 2 Nov 2012 00:44:20 +0000 Subject: smsc95xx: fix tx checksum offload for big endian f7b2927 introduced tx checksum offload support for smsc95xx, and enabled it by default. This feature doesn't take endianness into account, so causes most tx to fail on those platforms. This patch fixes the problem fully by adding the missing conversion. An alternate workaround is to disable TX checksum offload on those platforms. The cpu impact of this feature is very low. Signed-off-by: Steve Glendinning Signed-off-by: David S. Miller diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index 7479a57..3286166 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -1344,6 +1344,7 @@ static struct sk_buff *smsc95xx_tx_fixup(struct usbnet *dev, } else { u32 csum_preamble = smsc95xx_calc_csum_preamble(skb); skb_push(skb, 4); + cpu_to_le32s(&csum_preamble); memcpy(skb->data, &csum_preamble, 4); } } -- cgit v0.10.2 From efc7ce0334b68387b48baf16a285a9b1d5c19256 Mon Sep 17 00:00:00 2001 From: Masanari Iida Date: Fri, 2 Nov 2012 04:36:17 +0000 Subject: net: bnx2x: Fix typo in bnx2x driver Correct spelling typo in bnx2x driver Signed-off-by: Masanari Iida Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c index c65295d..6e5bdd1 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c @@ -1702,7 +1702,7 @@ static int bnx2x_set_eee(struct net_device *dev, struct ethtool_eee *edata) SHMEM_EEE_ADV_STATUS_SHIFT); if ((advertised != (eee_cfg & SHMEM_EEE_ADV_STATUS_MASK))) { DP(BNX2X_MSG_ETHTOOL, - "Direct manipulation of EEE advertisment is not supported\n"); + "Direct manipulation of EEE advertisement is not supported\n"); return -EINVAL; } diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 6dd0dd0..f6cfdc6 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -9941,7 +9941,7 @@ static int bnx2x_848x3_config_init(struct bnx2x_phy *phy, else rc = bnx2x_8483x_disable_eee(phy, params, vars); if (rc) { - DP(NETIF_MSG_LINK, "Failed to set EEE advertisment\n"); + DP(NETIF_MSG_LINK, "Failed to set EEE advertisement\n"); return rc; } } else { @@ -12987,7 +12987,7 @@ static u8 bnx2x_analyze_link_error(struct link_params *params, DP(NETIF_MSG_LINK, "Analyze TX Fault\n"); break; default: - DP(NETIF_MSG_LINK, "Analyze UNKOWN\n"); + DP(NETIF_MSG_LINK, "Analyze UNKNOWN\n"); } DP(NETIF_MSG_LINK, "Link changed:[%x %x]->%x\n", vars->link_up, old_status, status); -- cgit v0.10.2 From cacb6ba0f36ab14a507f4ee7697e8332899015d2 Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Sat, 3 Nov 2012 09:30:34 +0000 Subject: net: inet_diag -- Return error code if protocol handler is missed We've observed that in case if UDP diag module is not supported in kernel the netlink returns NLMSG_DONE without notifying a caller that handler is missed. This patch makes __inet_diag_dump to return error code instead. So as example it become possible to detect such situation and handle it gracefully on userspace level. Signed-off-by: Cyrill Gorcunov CC: David Miller CC: Eric Dumazet CC: Pavel Emelyanov Acked-by: Pavel Emelyanov Signed-off-by: David S. Miller diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c index 535584c..0c34bfa 100644 --- a/net/ipv4/inet_diag.c +++ b/net/ipv4/inet_diag.c @@ -892,13 +892,16 @@ static int __inet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb, struct inet_diag_req_v2 *r, struct nlattr *bc) { const struct inet_diag_handler *handler; + int err = 0; handler = inet_diag_lock_handler(r->sdiag_protocol); if (!IS_ERR(handler)) handler->dump(skb, cb, r, bc); + else + err = PTR_ERR(handler); inet_diag_unlock_handler(handler); - return skb->len; + return err ? : skb->len; } static int inet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb) -- cgit v0.10.2 From ec8f53fb693dda095ad3342b927a074e7c4dddfa Mon Sep 17 00:00:00 2001 From: Masanari Iida Date: Fri, 2 Nov 2012 00:28:50 +0900 Subject: ALSA: Fix typo in drivers sound Correct spelling typo in debug messages within drivers/sound Signed-off-by: Masanari Iida Signed-off-by: Takashi Iwai diff --git a/sound/i2c/other/ak4113.c b/sound/i2c/other/ak4113.c index ef68d71..e04e750 100644 --- a/sound/i2c/other/ak4113.c +++ b/sound/i2c/other/ak4113.c @@ -426,7 +426,7 @@ static struct snd_kcontrol_new snd_ak4113_iec958_controls[] = { }, { .iface = SNDRV_CTL_ELEM_IFACE_PCM, - .name = "IEC958 Preample Capture Default", + .name = "IEC958 Preamble Capture Default", .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, .info = snd_ak4113_spdif_pinfo, diff --git a/sound/i2c/other/ak4114.c b/sound/i2c/other/ak4114.c index 816e7d2..5bf4fca 100644 --- a/sound/i2c/other/ak4114.c +++ b/sound/i2c/other/ak4114.c @@ -401,7 +401,7 @@ static struct snd_kcontrol_new snd_ak4114_iec958_controls[] = { }, { .iface = SNDRV_CTL_ELEM_IFACE_PCM, - .name = "IEC958 Preample Capture Default", + .name = "IEC958 Preamble Capture Default", .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, .info = snd_ak4114_spdif_pinfo, .get = snd_ak4114_spdif_pget, diff --git a/sound/i2c/other/ak4117.c b/sound/i2c/other/ak4117.c index b4b2a51..40e33c9 100644 --- a/sound/i2c/other/ak4117.c +++ b/sound/i2c/other/ak4117.c @@ -380,7 +380,7 @@ static struct snd_kcontrol_new snd_ak4117_iec958_controls[] = { }, { .iface = SNDRV_CTL_ELEM_IFACE_PCM, - .name = "IEC958 Preample Capture Default", + .name = "IEC958 Preamble Capture Default", .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, .info = snd_ak4117_spdif_pinfo, .get = snd_ak4117_spdif_pget, diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index f1cd1e3..9a8d5ce 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -4899,7 +4899,7 @@ snd_hdspm_proc_read_madi(struct snd_info_entry * entry, insel = "Coaxial"; break; default: - insel = "Unkown"; + insel = "Unknown"; } snd_iprintf(buffer, diff --git a/sound/soc/codecs/cs42l52.c b/sound/soc/codecs/cs42l52.c index 6159929..4d8db36 100644 --- a/sound/soc/codecs/cs42l52.c +++ b/sound/soc/codecs/cs42l52.c @@ -763,7 +763,7 @@ static int cs42l52_set_sysclk(struct snd_soc_dai *codec_dai, if ((freq >= CS42L52_MIN_CLK) && (freq <= CS42L52_MAX_CLK)) { cs42l52->sysclk = freq; } else { - dev_err(codec->dev, "Invalid freq paramter\n"); + dev_err(codec->dev, "Invalid freq parameter\n"); return -EINVAL; } return 0; diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index 3fddc7a..b2b2b37 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -3722,7 +3722,7 @@ static irqreturn_t wm8958_mic_irq(int irq, void *data) } while (count--); if (count == 0) - dev_warn(codec->dev, "No impedence range reported for jack\n"); + dev_warn(codec->dev, "No impedance range reported for jack\n"); #ifndef CONFIG_SND_SOC_WM8994_MODULE trace_snd_soc_jack_irq(dev_name(codec->dev)); -- cgit v0.10.2 From f0b3da98434589a5665d70041f8e1a5600b84fe8 Mon Sep 17 00:00:00 2001 From: "Lars R. Damerow" Date: Fri, 2 Nov 2012 13:10:39 -0700 Subject: ALSA: hda - support Teradici 2200 host card audio The audio chipset used in Teradici's Tera2 host cards is the same as that in the 1200 host cards. This patch allows ALSA to recognize the Tera2 cards. Signed-off-by: Lars R. Damerow Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 72b085a..cd2dbaf 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -3563,6 +3563,8 @@ static DEFINE_PCI_DEVICE_TABLE(azx_ids) = { /* Teradici */ { PCI_DEVICE(0x6549, 0x1200), .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT }, + { PCI_DEVICE(0x6549, 0x2200), + .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT }, /* Creative X-Fi (CA0110-IBG) */ /* CTHDA chips */ { PCI_DEVICE(0x1102, 0x0010), -- cgit v0.10.2 From 6404f0b71c44cfd612ddf28627de31b4604d1d6e Mon Sep 17 00:00:00 2001 From: viresh kumar Date: Wed, 31 Oct 2012 10:40:42 +0100 Subject: ARM: 7569/1: mm: uninitialized warning corrections The variables here are really not used uninitialized. arch/arm/mm/alignment.c: In function 'do_alignment': arch/arm/mm/alignment.c:327:15: warning: 'offset.un' may be used uninitialized in this function [-Wmaybe-uninitialized] arch/arm/mm/alignment.c:748:21: note: 'offset.un' was declared here Signed-off-by: Viresh Kumar Signed-off-by: Russell King diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c index 023f4437..b820eda 100644 --- a/arch/arm/mm/alignment.c +++ b/arch/arm/mm/alignment.c @@ -745,7 +745,7 @@ do_alignment_t32_to_handler(unsigned long *pinstr, struct pt_regs *regs, static int do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs) { - union offset_union offset; + union offset_union uninitialized_var(offset); unsigned long instr = 0, instrptr; int (*handler)(unsigned long addr, unsigned long instr, struct pt_regs *regs); unsigned int type; -- cgit v0.10.2 From cf47a83fb06e42ae1b572ed68326068c7feaceae Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Fri, 19 Oct 2012 15:25:37 -0400 Subject: xen/hypercall: fix hypercall fallback code for very old hypervisors While copying the argument structures in HYPERVISOR_event_channel_op() and HYPERVISOR_physdev_op() into the local variable is sufficiently safe even if the actual structure is smaller than the container one, copying back eventual output values the same way isn't: This may collide with on-stack variables (particularly "rc") which may change between the first and second memcpy() (i.e. the second memcpy() could discard that change). Move the fallback code into out-of-line functions, and handle all of the operations known by this old a hypervisor individually: Some don't require copying back anything at all, and for the rest use the individual argument structures' sizes rather than the container's. Reported-by: Dan Carpenter Signed-off-by: Jan Beulich [v2: Reduce #define/#undef usage in HYPERVISOR_physdev_op_compat().] [v3: Fix compile errors when modules use said hypercalls] [v4: Add xen_ prefix to the HYPERCALL_..] [v5: Alter the name and only EXPORT_SYMBOL_GPL one of them] Signed-off-by: Konrad Rzeszutek Wilk diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h index 59c226d..c20d1ce 100644 --- a/arch/x86/include/asm/xen/hypercall.h +++ b/arch/x86/include/asm/xen/hypercall.h @@ -359,18 +359,14 @@ HYPERVISOR_update_va_mapping(unsigned long va, pte_t new_val, return _hypercall4(int, update_va_mapping, va, new_val.pte, new_val.pte >> 32, flags); } +extern int __must_check xen_event_channel_op_compat(int, void *); static inline int HYPERVISOR_event_channel_op(int cmd, void *arg) { int rc = _hypercall2(int, event_channel_op, cmd, arg); - if (unlikely(rc == -ENOSYS)) { - struct evtchn_op op; - op.cmd = cmd; - memcpy(&op.u, arg, sizeof(op.u)); - rc = _hypercall1(int, event_channel_op_compat, &op); - memcpy(arg, &op.u, sizeof(op.u)); - } + if (unlikely(rc == -ENOSYS)) + rc = xen_event_channel_op_compat(cmd, arg); return rc; } @@ -386,17 +382,14 @@ HYPERVISOR_console_io(int cmd, int count, char *str) return _hypercall3(int, console_io, cmd, count, str); } +extern int __must_check HYPERVISOR_physdev_op_compat(int, void *); + static inline int HYPERVISOR_physdev_op(int cmd, void *arg) { int rc = _hypercall2(int, physdev_op, cmd, arg); - if (unlikely(rc == -ENOSYS)) { - struct physdev_op op; - op.cmd = cmd; - memcpy(&op.u, arg, sizeof(op.u)); - rc = _hypercall1(int, physdev_op_compat, &op); - memcpy(arg, &op.u, sizeof(op.u)); - } + if (unlikely(rc == -ENOSYS)) + rc = HYPERVISOR_physdev_op_compat(cmd, arg); return rc; } diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile index 0e863703..46de6cd 100644 --- a/drivers/xen/Makefile +++ b/drivers/xen/Makefile @@ -2,7 +2,7 @@ ifneq ($(CONFIG_ARM),y) obj-y += manage.o balloon.o obj-$(CONFIG_HOTPLUG_CPU) += cpu_hotplug.o endif -obj-y += grant-table.o features.o events.o +obj-y += grant-table.o features.o events.o fallback.o obj-y += xenbus/ nostackp := $(call cc-option, -fno-stack-protector) diff --git a/drivers/xen/fallback.c b/drivers/xen/fallback.c new file mode 100644 index 0000000..0ef7c4d --- /dev/null +++ b/drivers/xen/fallback.c @@ -0,0 +1,80 @@ +#include +#include +#include +#include +#include +#include + +int xen_event_channel_op_compat(int cmd, void *arg) +{ + struct evtchn_op op; + int rc; + + op.cmd = cmd; + memcpy(&op.u, arg, sizeof(op.u)); + rc = _hypercall1(int, event_channel_op_compat, &op); + + switch (cmd) { + case EVTCHNOP_close: + case EVTCHNOP_send: + case EVTCHNOP_bind_vcpu: + case EVTCHNOP_unmask: + /* no output */ + break; + +#define COPY_BACK(eop) \ + case EVTCHNOP_##eop: \ + memcpy(arg, &op.u.eop, sizeof(op.u.eop)); \ + break + + COPY_BACK(bind_interdomain); + COPY_BACK(bind_virq); + COPY_BACK(bind_pirq); + COPY_BACK(status); + COPY_BACK(alloc_unbound); + COPY_BACK(bind_ipi); +#undef COPY_BACK + + default: + WARN_ON(rc != -ENOSYS); + break; + } + + return rc; +} +EXPORT_SYMBOL_GPL(xen_event_channel_op_compat); + +int HYPERVISOR_physdev_op_compat(int cmd, void *arg) +{ + struct physdev_op op; + int rc; + + op.cmd = cmd; + memcpy(&op.u, arg, sizeof(op.u)); + rc = _hypercall1(int, physdev_op_compat, &op); + + switch (cmd) { + case PHYSDEVOP_IRQ_UNMASK_NOTIFY: + case PHYSDEVOP_set_iopl: + case PHYSDEVOP_set_iobitmap: + case PHYSDEVOP_apic_write: + /* no output */ + break; + +#define COPY_BACK(pop, fld) \ + case PHYSDEVOP_##pop: \ + memcpy(arg, &op.u.fld, sizeof(op.u.fld)); \ + break + + COPY_BACK(irq_status_query, irq_status_query); + COPY_BACK(apic_read, apic_op); + COPY_BACK(ASSIGN_VECTOR, irq_op); +#undef COPY_BACK + + default: + WARN_ON(rc != -ENOSYS); + break; + } + + return rc; +} -- cgit v0.10.2 From 3d70f8c617a436c7146ecb81df2265b4626dfe89 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 4 Nov 2012 11:07:39 -0800 Subject: Linux 3.7-rc4 diff --git a/Makefile b/Makefile index 42d0e56..a1ccf22 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 7 SUBLEVEL = 0 -EXTRAVERSION = -rc3 +EXTRAVERSION = -rc4 NAME = Terrified Chipmunk # *DOCUMENTATION* -- cgit v0.10.2 From 5a83b4b5a391f07141b157ac9daa51c409e71ab5 Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Thu, 1 Nov 2012 13:42:37 +0100 Subject: ALSA: hda: Cirrus: Fix coefficient index for beep configuration Signed-off-by: Alexander Stein Cc: Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c index 61a7113..3b7d67a 100644 --- a/sound/pci/hda/patch_cirrus.c +++ b/sound/pci/hda/patch_cirrus.c @@ -1107,7 +1107,7 @@ static const struct hda_verb cs_coef_init_verbs[] = { | 0x0400 /* Disable Coefficient Auto increment */ )}, /* Beep */ - {0x11, AC_VERB_SET_COEF_INDEX, IDX_DAC_CFG}, + {0x11, AC_VERB_SET_COEF_INDEX, IDX_BEEP_CFG}, {0x11, AC_VERB_SET_PROC_COEF, 0x0007}, /* Enable Beep thru DAC1/2/3 */ {} /* terminator */ -- cgit v0.10.2 From 16337e028a6dae9fbdd718c0d42161540a668ff3 Mon Sep 17 00:00:00 2001 From: Daniel J Blueman Date: Sun, 4 Nov 2012 13:19:03 +0800 Subject: ALSA: HDA: Fix digital microphone on CS420x Correctly enable the digital microphones with the right bits in the right coeffecient registers on Cirrus CS4206/7 codecs. It also prevents misconfiguring ADC1/2. This fixes the digital mic on the Macbook Pro 10,1/Retina. Based-on-patch-by: Alexander Stein Signed-off-by: Daniel J Blueman Cc: Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c index 3b7d67a..859a119 100644 --- a/sound/pci/hda/patch_cirrus.c +++ b/sound/pci/hda/patch_cirrus.c @@ -101,8 +101,8 @@ enum { #define CS420X_VENDOR_NID 0x11 #define CS_DIG_OUT1_PIN_NID 0x10 #define CS_DIG_OUT2_PIN_NID 0x15 -#define CS_DMIC1_PIN_NID 0x12 -#define CS_DMIC2_PIN_NID 0x0e +#define CS_DMIC1_PIN_NID 0x0e +#define CS_DMIC2_PIN_NID 0x12 /* coef indices */ #define IDX_SPDIF_STAT 0x0000 @@ -1079,14 +1079,18 @@ static void init_input(struct hda_codec *codec) cs_automic(codec, NULL); coef = 0x000a; /* ADC1/2 - Digital and Analog Soft Ramp */ + cs_vendor_coef_set(codec, IDX_ADC_CFG, coef); + + coef = cs_vendor_coef_get(codec, IDX_BEEP_CFG); if (is_active_pin(codec, CS_DMIC2_PIN_NID)) - coef |= 0x0500; /* DMIC2 2 chan on, GPIO1 off */ + coef |= 1 << 4; /* DMIC2 2 chan on, GPIO1 off */ if (is_active_pin(codec, CS_DMIC1_PIN_NID)) - coef |= 0x1800; /* DMIC1 2 chan on, GPIO0 off + coef |= 1 << 3; /* DMIC1 2 chan on, GPIO0 off * No effect if SPDIF_OUT2 is * selected in IDX_SPDIF_CTL. */ - cs_vendor_coef_set(codec, IDX_ADC_CFG, coef); + + cs_vendor_coef_set(codec, IDX_BEEP_CFG, coef); } else { if (spec->mic_detect) cs_automic(codec, NULL); -- cgit v0.10.2 From 00e17f767e3e8d42b83a12af3ed16e3129e4feb0 Mon Sep 17 00:00:00 2001 From: Daniel J Blueman Date: Sun, 4 Nov 2012 13:19:04 +0800 Subject: ALSA: HDA: Mark CS260x immutable structures const Mark structures that won't change const. Signed-off-by: Daniel J Blueman Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c index 859a119..d5f3a26 100644 --- a/sound/pci/hda/patch_cirrus.c +++ b/sound/pci/hda/patch_cirrus.c @@ -1732,8 +1732,7 @@ static int cs421x_mux_enum_put(struct snd_kcontrol *kcontrol, } -static struct snd_kcontrol_new cs421x_capture_source = { - +static const struct snd_kcontrol_new cs421x_capture_source = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Capture Source", .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, @@ -1950,7 +1949,7 @@ static int cs421x_suspend(struct hda_codec *codec) } #endif -static struct hda_codec_ops cs421x_patch_ops = { +static const struct hda_codec_ops cs421x_patch_ops = { .build_controls = cs421x_build_controls, .build_pcms = cs_build_pcms, .init = cs421x_init, -- cgit v0.10.2 From 5c0ee9497b33cde3e57460efe4f73313dc0b57a3 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Sun, 4 Nov 2012 23:34:58 +0100 Subject: ALSA: es1968: Add ESS vendor ID to pm_whitelist Add generic ESS vendor ID to pm_whitelist. This should fix suspend on all Maestro-2 and Maestro-2E based PCI cards. Tested on Terratec DMX and SF64-PCE2. Signed-off-by: Ondrej Zary Signed-off-by: Takashi Iwai diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c index 5d0e568..50169bc 100644 --- a/sound/pci/es1968.c +++ b/sound/pci/es1968.c @@ -2655,6 +2655,8 @@ static struct ess_device_list pm_whitelist[] __devinitdata = { { TYPE_MAESTRO2E, 0x1179 }, { TYPE_MAESTRO2E, 0x14c0 }, /* HP omnibook 4150 */ { TYPE_MAESTRO2E, 0x1558 }, + { TYPE_MAESTRO2E, 0x125d }, /* a PCI card, e.g. Terratec DMX */ + { TYPE_MAESTRO2, 0x125d }, /* a PCI card, e.g. SF64-PCE2 */ }; static struct ess_device_list mpu_blacklist[] __devinitdata = { -- cgit v0.10.2 From 0b53fa35355725b5130b8e73309995c4d4b4868b Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Sat, 27 Oct 2012 14:47:46 +0530 Subject: pinctrl: SPEAr: Don't update all non muxreg bits on pinctrl_disable Not all bits of a register are used for pinctrl in SPEAr. So only update bits relevant to pinctrl using muxreg->mask. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/spear/pinctrl-spear.c b/drivers/pinctrl/spear/pinctrl-spear.c index 5d4f44f..b1fd6ee 100644 --- a/drivers/pinctrl/spear/pinctrl-spear.c +++ b/drivers/pinctrl/spear/pinctrl-spear.c @@ -244,7 +244,7 @@ static int spear_pinctrl_endisable(struct pinctrl_dev *pctldev, else temp = ~muxreg->val; - val |= temp; + val |= muxreg->mask & temp; pmx_writel(pmx, val, muxreg->reg); } } -- cgit v0.10.2 From a778005589918c8051c496d8b7c96037776ed239 Mon Sep 17 00:00:00 2001 From: Shiraz Hashim Date: Sat, 27 Oct 2012 14:47:47 +0530 Subject: pinctrl: SPEAr3xx: correct register space to configure pwm To have pwm on pad no. 34 we also need to select between pwm and SD_LED functions. Add this to pwm pin mux register configuration. Signed-off-by: Shiraz Hashim Signed-off-by: Viresh Kumar Reviewed-by: Vipin Kumar Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/spear/pinctrl-spear320.c b/drivers/pinctrl/spear/pinctrl-spear320.c index 020b1e0..4fccf95 100644 --- a/drivers/pinctrl/spear/pinctrl-spear320.c +++ b/drivers/pinctrl/spear/pinctrl-spear320.c @@ -2240,6 +2240,10 @@ static struct spear_muxreg pwm2_pin_34_muxreg[] = { .mask = PMX_SSP_CS_MASK, .val = 0, }, { + .reg = MODE_CONFIG_REG, + .mask = PMX_PWM_MASK, + .val = PMX_PWM_MASK, + }, { .reg = IP_SEL_PAD_30_39_REG, .mask = PMX_PL_34_MASK, .val = PMX_PWM2_PL_34_VAL, diff --git a/drivers/pinctrl/spear/pinctrl-spear3xx.h b/drivers/pinctrl/spear/pinctrl-spear3xx.h index 31f4434..7860b36 100644 --- a/drivers/pinctrl/spear/pinctrl-spear3xx.h +++ b/drivers/pinctrl/spear/pinctrl-spear3xx.h @@ -15,6 +15,7 @@ #include "pinctrl-spear.h" /* pad mux declarations */ +#define PMX_PWM_MASK (1 << 16) #define PMX_FIRDA_MASK (1 << 14) #define PMX_I2C_MASK (1 << 13) #define PMX_SSP_CS_MASK (1 << 12) -- cgit v0.10.2 From b06bf9a905e1d9ebb7326fa4110cf5eb105c872f Mon Sep 17 00:00:00 2001 From: Deepak Sikri Date: Sat, 27 Oct 2012 14:47:48 +0530 Subject: pinctrl: SPEAr320: Correct pad mux entries for rmii/smii pin entries of rmii and smii are interchanged by mistake. Fix it. Signed-off-by: Deepak Sikri Signed-off-by: Viresh Kumar Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/spear/pinctrl-spear320.c b/drivers/pinctrl/spear/pinctrl-spear320.c index 4fccf95..ca47b0e 100644 --- a/drivers/pinctrl/spear/pinctrl-spear320.c +++ b/drivers/pinctrl/spear/pinctrl-spear320.c @@ -2960,9 +2960,9 @@ static struct spear_function mii2_function = { }; /* Pad multiplexing for cadence mii 1_2 as smii or rmii device */ -static const unsigned smii0_1_pins[] = { 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, +static const unsigned rmii0_1_pins[] = { 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 }; -static const unsigned rmii0_1_pins[] = { 10, 11, 21, 22, 23, 24, 25, 26, 27 }; +static const unsigned smii0_1_pins[] = { 10, 11, 21, 22, 23, 24, 25, 26, 27 }; static struct spear_muxreg mii0_1_muxreg[] = { { .reg = PMX_CONFIG_REG, -- cgit v0.10.2 From b06fbfdb06da61154b9498ff8e83377d3d795081 Mon Sep 17 00:00:00 2001 From: Shiraz Hashim Date: Sat, 27 Oct 2012 14:47:49 +0530 Subject: pinctrl: SPEAr1310: fix clcd high resolution pin group name All group names in SPEAr pinctrl have "_grp" at the end of their name. Do the same for clcd_high_res_grp. Signed-off-by: Shiraz Hashim Signed-off-by: Viresh Kumar Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/spear/pinctrl-spear1310.c b/drivers/pinctrl/spear/pinctrl-spear1310.c index d6cca8c..c720d09 100644 --- a/drivers/pinctrl/spear/pinctrl-spear1310.c +++ b/drivers/pinctrl/spear/pinctrl-spear1310.c @@ -461,7 +461,7 @@ static struct spear_pingroup clcd_high_res_pingroup = { .nmodemuxs = ARRAY_SIZE(clcd_high_res_modemux), }; -static const char *const clcd_grps[] = { "clcd_grp", "clcd_high_res" }; +static const char *const clcd_grps[] = { "clcd_grp", "clcd_high_res_grp" }; static struct spear_function clcd_function = { .name = "clcd", .groups = clcd_grps, -- cgit v0.10.2 From 82a2deb93cb2237e3a91db6d0317571ecbd6e531 Mon Sep 17 00:00:00 2001 From: Vipul Kumar Samar Date: Sat, 27 Oct 2012 14:47:50 +0530 Subject: pinctrl: SPEAr1310: Fix value of PERIP_CFG reigster and MCIF_SEL_SHIFT This patch fixes two macros: PERIP_CFG registers offset and MCIF selection shift. Signed-off-by: Vipul Kumar Samar Signed-off-by: Viresh Kumar Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/spear/pinctrl-spear1310.c b/drivers/pinctrl/spear/pinctrl-spear1310.c index c720d09..baf98ae 100644 --- a/drivers/pinctrl/spear/pinctrl-spear1310.c +++ b/drivers/pinctrl/spear/pinctrl-spear1310.c @@ -25,8 +25,8 @@ static const struct pinctrl_pin_desc spear1310_pins[] = { }; /* registers */ -#define PERIP_CFG 0x32C - #define MCIF_SEL_SHIFT 3 +#define PERIP_CFG 0x3B0 + #define MCIF_SEL_SHIFT 5 #define MCIF_SEL_SD (0x1 << MCIF_SEL_SHIFT) #define MCIF_SEL_CF (0x2 << MCIF_SEL_SHIFT) #define MCIF_SEL_XD (0x3 << MCIF_SEL_SHIFT) -- cgit v0.10.2 From f7c5b3d574a036e401b8ccf7ee93b873561c09e4 Mon Sep 17 00:00:00 2001 From: Vipul Kumar Samar Date: Sat, 27 Oct 2012 14:47:51 +0530 Subject: pinctrl: SPEAr1310: Separate out pci pins from pcie_sata pin group SPEAr1310 has separate PCI and PCIe implementations which are not muxed with each other. Presently they have been implemented as muxed together with SATA and are represented wrongly in the software. In reality only PCIe and SATA implementations are muxed with each other. This patch separates out pci pins creating a new pingroup and function for pci. Signed-off-by: Vipul Kumar Samar Signed-off-by: Viresh Kumar Reviewed-by: Shiraz Hashim Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/spear/pinctrl-spear1310.c b/drivers/pinctrl/spear/pinctrl-spear1310.c index baf98ae..a25ab73 100644 --- a/drivers/pinctrl/spear/pinctrl-spear1310.c +++ b/drivers/pinctrl/spear/pinctrl-spear1310.c @@ -1763,29 +1763,52 @@ static struct spear_function can1_function = { .ngroups = ARRAY_SIZE(can1_grps), }; -/* Pad multiplexing for pci device */ -static const unsigned pci_sata_pins[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 18, +/* Pad multiplexing for (ras-ip) pci device */ +static const unsigned pci_pins[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99 }; -#define PCI_SATA_MUXREG \ - { \ - .reg = PAD_FUNCTION_EN_0, \ - .mask = PMX_MCI_DATA8_15_MASK, \ - .val = 0, \ - }, { \ - .reg = PAD_FUNCTION_EN_1, \ - .mask = PMX_PCI_REG1_MASK, \ - .val = 0, \ - }, { \ - .reg = PAD_FUNCTION_EN_2, \ - .mask = PMX_PCI_REG2_MASK, \ - .val = 0, \ - } -/* pad multiplexing for pcie0 device */ +static struct spear_muxreg pci_muxreg[] = { + { + .reg = PAD_FUNCTION_EN_0, + .mask = PMX_MCI_DATA8_15_MASK, + .val = 0, + }, { + .reg = PAD_FUNCTION_EN_1, + .mask = PMX_PCI_REG1_MASK, + .val = 0, + }, { + .reg = PAD_FUNCTION_EN_2, + .mask = PMX_PCI_REG2_MASK, + .val = 0, + }, +}; + +static struct spear_modemux pci_modemux[] = { + { + .muxregs = pci_muxreg, + .nmuxregs = ARRAY_SIZE(pci_muxreg), + }, +}; + +static struct spear_pingroup pci_pingroup = { + .name = "pci_grp", + .pins = pci_pins, + .npins = ARRAY_SIZE(pci_pins), + .modemuxs = pci_modemux, + .nmodemuxs = ARRAY_SIZE(pci_modemux), +}; + +static const char *const pci_grps[] = { "pci_grp" }; +static struct spear_function pci_function = { + .name = "pci", + .groups = pci_grps, + .ngroups = ARRAY_SIZE(pci_grps), +}; + +/* pad multiplexing for (fix-part) pcie0 device */ static struct spear_muxreg pcie0_muxreg[] = { - PCI_SATA_MUXREG, { .reg = PCIE_SATA_CFG, .mask = PCIE_CFG_VAL(0), @@ -1802,15 +1825,12 @@ static struct spear_modemux pcie0_modemux[] = { static struct spear_pingroup pcie0_pingroup = { .name = "pcie0_grp", - .pins = pci_sata_pins, - .npins = ARRAY_SIZE(pci_sata_pins), .modemuxs = pcie0_modemux, .nmodemuxs = ARRAY_SIZE(pcie0_modemux), }; -/* pad multiplexing for pcie1 device */ +/* pad multiplexing for (fix-part) pcie1 device */ static struct spear_muxreg pcie1_muxreg[] = { - PCI_SATA_MUXREG, { .reg = PCIE_SATA_CFG, .mask = PCIE_CFG_VAL(1), @@ -1827,15 +1847,12 @@ static struct spear_modemux pcie1_modemux[] = { static struct spear_pingroup pcie1_pingroup = { .name = "pcie1_grp", - .pins = pci_sata_pins, - .npins = ARRAY_SIZE(pci_sata_pins), .modemuxs = pcie1_modemux, .nmodemuxs = ARRAY_SIZE(pcie1_modemux), }; -/* pad multiplexing for pcie2 device */ +/* pad multiplexing for (fix-part) pcie2 device */ static struct spear_muxreg pcie2_muxreg[] = { - PCI_SATA_MUXREG, { .reg = PCIE_SATA_CFG, .mask = PCIE_CFG_VAL(2), @@ -1852,22 +1869,20 @@ static struct spear_modemux pcie2_modemux[] = { static struct spear_pingroup pcie2_pingroup = { .name = "pcie2_grp", - .pins = pci_sata_pins, - .npins = ARRAY_SIZE(pci_sata_pins), .modemuxs = pcie2_modemux, .nmodemuxs = ARRAY_SIZE(pcie2_modemux), }; -static const char *const pci_grps[] = { "pcie0_grp", "pcie1_grp", "pcie2_grp" }; -static struct spear_function pci_function = { - .name = "pci", - .groups = pci_grps, - .ngroups = ARRAY_SIZE(pci_grps), +static const char *const pcie_grps[] = { "pcie0_grp", "pcie1_grp", "pcie2_grp" +}; +static struct spear_function pcie_function = { + .name = "pci_express", + .groups = pcie_grps, + .ngroups = ARRAY_SIZE(pcie_grps), }; /* pad multiplexing for sata0 device */ static struct spear_muxreg sata0_muxreg[] = { - PCI_SATA_MUXREG, { .reg = PCIE_SATA_CFG, .mask = SATA_CFG_VAL(0), @@ -1884,15 +1899,12 @@ static struct spear_modemux sata0_modemux[] = { static struct spear_pingroup sata0_pingroup = { .name = "sata0_grp", - .pins = pci_sata_pins, - .npins = ARRAY_SIZE(pci_sata_pins), .modemuxs = sata0_modemux, .nmodemuxs = ARRAY_SIZE(sata0_modemux), }; /* pad multiplexing for sata1 device */ static struct spear_muxreg sata1_muxreg[] = { - PCI_SATA_MUXREG, { .reg = PCIE_SATA_CFG, .mask = SATA_CFG_VAL(1), @@ -1909,15 +1921,12 @@ static struct spear_modemux sata1_modemux[] = { static struct spear_pingroup sata1_pingroup = { .name = "sata1_grp", - .pins = pci_sata_pins, - .npins = ARRAY_SIZE(pci_sata_pins), .modemuxs = sata1_modemux, .nmodemuxs = ARRAY_SIZE(sata1_modemux), }; /* pad multiplexing for sata2 device */ static struct spear_muxreg sata2_muxreg[] = { - PCI_SATA_MUXREG, { .reg = PCIE_SATA_CFG, .mask = SATA_CFG_VAL(2), @@ -1934,8 +1943,6 @@ static struct spear_modemux sata2_modemux[] = { static struct spear_pingroup sata2_pingroup = { .name = "sata2_grp", - .pins = pci_sata_pins, - .npins = ARRAY_SIZE(pci_sata_pins), .modemuxs = sata2_modemux, .nmodemuxs = ARRAY_SIZE(sata2_modemux), }; @@ -2093,6 +2100,7 @@ static struct spear_pingroup *spear1310_pingroups[] = { &can0_dis_sd_pingroup, &can1_dis_sd_pingroup, &can1_dis_kbd_pingroup, + &pci_pingroup, &pcie0_pingroup, &pcie1_pingroup, &pcie2_pingroup, @@ -2138,6 +2146,7 @@ static struct spear_function *spear1310_functions[] = { &can0_function, &can1_function, &pci_function, + &pcie_function, &sata_function, &ssp1_function, &gpt64_function, -- cgit v0.10.2 From 0e6f1e5c39ac456d692be77d3adeb4fd7d905d27 Mon Sep 17 00:00:00 2001 From: Shiraz Hashim Date: Sat, 27 Oct 2012 14:47:52 +0530 Subject: pinctrl: SPEAr1310: add register entries for enabling pad direction Pad direction must also be updated for SPEAr1310, while setting pads values. This patch adds support for that. Signed-off-by: Shiraz Hashim Signed-off-by: Viresh Kumar Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/spear/pinctrl-spear1310.c b/drivers/pinctrl/spear/pinctrl-spear1310.c index a25ab73..0436fc7 100644 --- a/drivers/pinctrl/spear/pinctrl-spear1310.c +++ b/drivers/pinctrl/spear/pinctrl-spear1310.c @@ -164,6 +164,10 @@ static const struct pinctrl_pin_desc spear1310_pins[] = { #define PMX_SSP0_CS0_MASK (1 << 29) #define PMX_SSP0_CS1_2_MASK (1 << 30) +#define PAD_DIRECTION_SEL_0 0x65C +#define PAD_DIRECTION_SEL_1 0x660 +#define PAD_DIRECTION_SEL_2 0x664 + /* combined macros */ #define PMX_GMII_MASK (PMX_GMIICLK_MASK | \ PMX_GMIICOL_CRS_XFERER_MIITXCLK_MASK | \ @@ -237,6 +241,10 @@ static struct spear_muxreg i2c0_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_I2C0_MASK, .val = PMX_I2C0_MASK, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_I2C0_MASK, + .val = PMX_I2C0_MASK, }, }; @@ -269,6 +277,10 @@ static struct spear_muxreg ssp0_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_SSP0_MASK, .val = PMX_SSP0_MASK, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_SSP0_MASK, + .val = PMX_SSP0_MASK, }, }; @@ -294,6 +306,10 @@ static struct spear_muxreg ssp0_cs0_muxreg[] = { .reg = PAD_FUNCTION_EN_2, .mask = PMX_SSP0_CS0_MASK, .val = PMX_SSP0_CS0_MASK, + }, { + .reg = PAD_DIRECTION_SEL_2, + .mask = PMX_SSP0_CS0_MASK, + .val = PMX_SSP0_CS0_MASK, }, }; @@ -319,6 +335,10 @@ static struct spear_muxreg ssp0_cs1_2_muxreg[] = { .reg = PAD_FUNCTION_EN_2, .mask = PMX_SSP0_CS1_2_MASK, .val = PMX_SSP0_CS1_2_MASK, + }, { + .reg = PAD_DIRECTION_SEL_2, + .mask = PMX_SSP0_CS1_2_MASK, + .val = PMX_SSP0_CS1_2_MASK, }, }; @@ -352,6 +372,10 @@ static struct spear_muxreg i2s0_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_I2S0_MASK, .val = PMX_I2S0_MASK, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_I2S0_MASK, + .val = PMX_I2S0_MASK, }, }; @@ -384,6 +408,10 @@ static struct spear_muxreg i2s1_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_I2S1_MASK, .val = PMX_I2S1_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_I2S1_MASK, + .val = PMX_I2S1_MASK, }, }; @@ -418,6 +446,10 @@ static struct spear_muxreg clcd_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_CLCD1_MASK, .val = PMX_CLCD1_MASK, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_CLCD1_MASK, + .val = PMX_CLCD1_MASK, }, }; @@ -443,6 +475,10 @@ static struct spear_muxreg clcd_high_res_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_CLCD2_MASK, .val = PMX_CLCD2_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_CLCD2_MASK, + .val = PMX_CLCD2_MASK, }, }; @@ -479,6 +515,14 @@ static struct spear_muxreg arm_gpio_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_EGPIO_1_GRP_MASK, .val = PMX_EGPIO_1_GRP_MASK, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_EGPIO_0_GRP_MASK, + .val = PMX_EGPIO_0_GRP_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_EGPIO_1_GRP_MASK, + .val = PMX_EGPIO_1_GRP_MASK, }, }; @@ -511,6 +555,10 @@ static struct spear_muxreg smi_2_chips_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_SMI_MASK, .val = PMX_SMI_MASK, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_SMI_MASK, + .val = PMX_SMI_MASK, }, }; @@ -539,6 +587,14 @@ static struct spear_muxreg smi_4_chips_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_SMINCS2_MASK | PMX_SMINCS3_MASK, .val = PMX_SMINCS2_MASK | PMX_SMINCS3_MASK, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_SMI_MASK, + .val = PMX_SMI_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_SMINCS2_MASK | PMX_SMINCS3_MASK, + .val = PMX_SMINCS2_MASK | PMX_SMINCS3_MASK, }, }; @@ -573,6 +629,10 @@ static struct spear_muxreg gmii_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_GMII_MASK, .val = PMX_GMII_MASK, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_GMII_MASK, + .val = PMX_GMII_MASK, }, }; @@ -615,6 +675,18 @@ static struct spear_muxreg rgmii_muxreg[] = { .reg = PAD_FUNCTION_EN_2, .mask = PMX_RGMII_REG2_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_RGMII_REG0_MASK, + .val = PMX_RGMII_REG0_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_RGMII_REG1_MASK, + .val = PMX_RGMII_REG1_MASK, + }, { + .reg = PAD_DIRECTION_SEL_2, + .mask = PMX_RGMII_REG2_MASK, + .val = PMX_RGMII_REG2_MASK, }, }; @@ -649,6 +721,10 @@ static struct spear_muxreg smii_0_1_2_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_SMII_0_1_2_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_SMII_0_1_2_MASK, + .val = PMX_SMII_0_1_2_MASK, }, }; @@ -681,6 +757,10 @@ static struct spear_muxreg ras_mii_txclk_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_NFCE2_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_NFCE2_MASK, + .val = PMX_NFCE2_MASK, }, }; @@ -721,6 +801,14 @@ static struct spear_muxreg nand_8bit_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_NAND8BIT_1_MASK, .val = PMX_NAND8BIT_1_MASK, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_NAND8BIT_0_MASK, + .val = PMX_NAND8BIT_0_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_NAND8BIT_1_MASK, + .val = PMX_NAND8BIT_1_MASK, }, }; @@ -747,6 +835,10 @@ static struct spear_muxreg nand_16bit_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_NAND16BIT_1_MASK, .val = PMX_NAND16BIT_1_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_NAND16BIT_1_MASK, + .val = PMX_NAND16BIT_1_MASK, }, }; @@ -772,6 +864,10 @@ static struct spear_muxreg nand_4_chips_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_NAND_4CHIPS_MASK, .val = PMX_NAND_4CHIPS_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_NAND_4CHIPS_MASK, + .val = PMX_NAND_4CHIPS_MASK, }, }; @@ -833,6 +929,10 @@ static struct spear_muxreg keyboard_rowcol6_8_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_KBD_ROWCOL68_MASK, .val = PMX_KBD_ROWCOL68_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_KBD_ROWCOL68_MASK, + .val = PMX_KBD_ROWCOL68_MASK, }, }; @@ -866,6 +966,10 @@ static struct spear_muxreg uart0_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_UART0_MASK, .val = PMX_UART0_MASK, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_UART0_MASK, + .val = PMX_UART0_MASK, }, }; @@ -891,6 +995,10 @@ static struct spear_muxreg uart0_modem_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_UART0_MODEM_MASK, .val = PMX_UART0_MODEM_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_UART0_MODEM_MASK, + .val = PMX_UART0_MODEM_MASK, }, }; @@ -923,6 +1031,10 @@ static struct spear_muxreg gpt0_tmr0_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_GPT0_TMR0_MASK, .val = PMX_GPT0_TMR0_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_GPT0_TMR0_MASK, + .val = PMX_GPT0_TMR0_MASK, }, }; @@ -948,6 +1060,10 @@ static struct spear_muxreg gpt0_tmr1_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_GPT0_TMR1_MASK, .val = PMX_GPT0_TMR1_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_GPT0_TMR1_MASK, + .val = PMX_GPT0_TMR1_MASK, }, }; @@ -980,6 +1096,10 @@ static struct spear_muxreg gpt1_tmr0_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_GPT1_TMR0_MASK, .val = PMX_GPT1_TMR0_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_GPT1_TMR0_MASK, + .val = PMX_GPT1_TMR0_MASK, }, }; @@ -1005,6 +1125,10 @@ static struct spear_muxreg gpt1_tmr1_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_GPT1_TMR1_MASK, .val = PMX_GPT1_TMR1_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_GPT1_TMR1_MASK, + .val = PMX_GPT1_TMR1_MASK, }, }; @@ -1049,6 +1173,20 @@ static const unsigned mcif_pins[] = { 86, 87, 88, 89, 90, 91, 92, 93, 213, 214, .reg = PAD_FUNCTION_EN_2, \ .mask = PMX_MCIFALL_2_MASK, \ .val = PMX_MCIFALL_2_MASK, \ + }, { \ + .reg = PAD_DIRECTION_SEL_0, \ + .mask = PMX_MCI_DATA8_15_MASK, \ + .val = PMX_MCI_DATA8_15_MASK, \ + }, { \ + .reg = PAD_DIRECTION_SEL_1, \ + .mask = PMX_MCIFALL_1_MASK | PMX_NFWPRT1_MASK | \ + PMX_NFWPRT2_MASK, \ + .val = PMX_MCIFALL_1_MASK | PMX_NFWPRT1_MASK | \ + PMX_NFWPRT2_MASK, \ + }, { \ + .reg = PAD_DIRECTION_SEL_2, \ + .mask = PMX_MCIFALL_2_MASK, \ + .val = PMX_MCIFALL_2_MASK, \ } /* sdhci device */ @@ -1154,6 +1292,10 @@ static struct spear_muxreg touch_xy_muxreg[] = { .reg = PAD_FUNCTION_EN_2, .mask = PMX_TOUCH_XY_MASK, .val = PMX_TOUCH_XY_MASK, + }, { + .reg = PAD_DIRECTION_SEL_2, + .mask = PMX_TOUCH_XY_MASK, + .val = PMX_TOUCH_XY_MASK, }, }; @@ -1187,6 +1329,10 @@ static struct spear_muxreg uart1_dis_i2c_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_I2C0_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_I2C0_MASK, + .val = PMX_I2C0_MASK, }, }; @@ -1213,6 +1359,12 @@ static struct spear_muxreg uart1_dis_sd_muxreg[] = { .mask = PMX_MCIDATA1_MASK | PMX_MCIDATA2_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_MCIDATA1_MASK | + PMX_MCIDATA2_MASK, + .val = PMX_MCIDATA1_MASK | + PMX_MCIDATA2_MASK, }, }; @@ -1246,6 +1398,10 @@ static struct spear_muxreg uart2_3_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_I2S0_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_I2S0_MASK, + .val = PMX_I2S0_MASK, }, }; @@ -1278,6 +1434,10 @@ static struct spear_muxreg uart4_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_I2S0_MASK | PMX_CLCD1_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_I2S0_MASK | PMX_CLCD1_MASK, + .val = PMX_I2S0_MASK | PMX_CLCD1_MASK, }, }; @@ -1310,6 +1470,10 @@ static struct spear_muxreg uart5_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_CLCD1_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_CLCD1_MASK, + .val = PMX_CLCD1_MASK, }, }; @@ -1344,6 +1508,10 @@ static struct spear_muxreg rs485_0_1_tdm_0_1_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_CLCD1_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_CLCD1_MASK, + .val = PMX_CLCD1_MASK, }, }; @@ -1376,6 +1544,10 @@ static struct spear_muxreg i2c_1_2_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_CLCD1_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_CLCD1_MASK, + .val = PMX_CLCD1_MASK, }, }; @@ -1409,6 +1581,10 @@ static struct spear_muxreg i2c3_dis_smi_clcd_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_CLCD1_MASK | PMX_SMI_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_CLCD1_MASK | PMX_SMI_MASK, + .val = PMX_CLCD1_MASK | PMX_SMI_MASK, }, }; @@ -1435,6 +1611,10 @@ static struct spear_muxreg i2c3_dis_sd_i2s0_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_I2S1_MASK | PMX_MCIDATA3_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_I2S1_MASK | PMX_MCIDATA3_MASK, + .val = PMX_I2S1_MASK | PMX_MCIDATA3_MASK, }, }; @@ -1469,6 +1649,10 @@ static struct spear_muxreg i2c_4_5_dis_smi_muxreg[] = { .reg = PAD_FUNCTION_EN_0, .mask = PMX_SMI_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_SMI_MASK, + .val = PMX_SMI_MASK, }, }; @@ -1499,6 +1683,14 @@ static struct spear_muxreg i2c4_dis_sd_muxreg[] = { .reg = PAD_FUNCTION_EN_2, .mask = PMX_MCIDATA5_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_MCIDATA4_MASK, + .val = PMX_MCIDATA4_MASK, + }, { + .reg = PAD_DIRECTION_SEL_2, + .mask = PMX_MCIDATA5_MASK, + .val = PMX_MCIDATA5_MASK, }, }; @@ -1526,6 +1718,12 @@ static struct spear_muxreg i2c5_dis_sd_muxreg[] = { .mask = PMX_MCIDATA6_MASK | PMX_MCIDATA7_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_2, + .mask = PMX_MCIDATA6_MASK | + PMX_MCIDATA7_MASK, + .val = PMX_MCIDATA6_MASK | + PMX_MCIDATA7_MASK, }, }; @@ -1560,6 +1758,10 @@ static struct spear_muxreg i2c_6_7_dis_kbd_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_KBD_ROWCOL25_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_KBD_ROWCOL25_MASK, + .val = PMX_KBD_ROWCOL25_MASK, }, }; @@ -1587,6 +1789,12 @@ static struct spear_muxreg i2c6_dis_sd_muxreg[] = { .mask = PMX_MCIIORDRE_MASK | PMX_MCIIOWRWE_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_2, + .mask = PMX_MCIIORDRE_MASK | + PMX_MCIIOWRWE_MASK, + .val = PMX_MCIIORDRE_MASK | + PMX_MCIIOWRWE_MASK, }, }; @@ -1613,6 +1821,12 @@ static struct spear_muxreg i2c7_dis_sd_muxreg[] = { .mask = PMX_MCIRESETCF_MASK | PMX_MCICS0CE_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_2, + .mask = PMX_MCIRESETCF_MASK | + PMX_MCICS0CE_MASK, + .val = PMX_MCIRESETCF_MASK | + PMX_MCICS0CE_MASK, }, }; @@ -1651,6 +1865,14 @@ static struct spear_muxreg can0_dis_nor_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_NFRSTPWDWN3_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_NFRSTPWDWN2_MASK, + .val = PMX_NFRSTPWDWN2_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_NFRSTPWDWN3_MASK, + .val = PMX_NFRSTPWDWN3_MASK, }, }; @@ -1677,6 +1899,10 @@ static struct spear_muxreg can0_dis_sd_muxreg[] = { .reg = PAD_FUNCTION_EN_2, .mask = PMX_MCICFINTR_MASK | PMX_MCIIORDY_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_2, + .mask = PMX_MCICFINTR_MASK | PMX_MCIIORDY_MASK, + .val = PMX_MCICFINTR_MASK | PMX_MCIIORDY_MASK, }, }; @@ -1711,6 +1937,10 @@ static struct spear_muxreg can1_dis_sd_muxreg[] = { .reg = PAD_FUNCTION_EN_2, .mask = PMX_MCICS1_MASK | PMX_MCIDMAACK_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_2, + .mask = PMX_MCICS1_MASK | PMX_MCIDMAACK_MASK, + .val = PMX_MCICS1_MASK | PMX_MCIDMAACK_MASK, }, }; @@ -1737,6 +1967,10 @@ static struct spear_muxreg can1_dis_kbd_muxreg[] = { .reg = PAD_FUNCTION_EN_1, .mask = PMX_KBD_ROWCOL25_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_KBD_ROWCOL25_MASK, + .val = PMX_KBD_ROWCOL25_MASK, }, }; @@ -1782,6 +2016,18 @@ static struct spear_muxreg pci_muxreg[] = { .reg = PAD_FUNCTION_EN_2, .mask = PMX_PCI_REG2_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_0, + .mask = PMX_MCI_DATA8_15_MASK, + .val = PMX_MCI_DATA8_15_MASK, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_PCI_REG1_MASK, + .val = PMX_PCI_REG1_MASK, + }, { + .reg = PAD_DIRECTION_SEL_2, + .mask = PMX_PCI_REG2_MASK, + .val = PMX_PCI_REG2_MASK, }, }; @@ -1964,6 +2210,14 @@ static struct spear_muxreg ssp1_dis_kbd_muxreg[] = { PMX_KBD_COL0_MASK | PMX_NFIO8_15_MASK | PMX_NFCE1_MASK | PMX_NFCE2_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_1, + .mask = PMX_KBD_ROWCOL25_MASK | PMX_KBD_COL1_MASK | + PMX_KBD_COL0_MASK | PMX_NFIO8_15_MASK | PMX_NFCE1_MASK | + PMX_NFCE2_MASK, + .val = PMX_KBD_ROWCOL25_MASK | PMX_KBD_COL1_MASK | + PMX_KBD_COL0_MASK | PMX_NFIO8_15_MASK | PMX_NFCE1_MASK | + PMX_NFCE2_MASK, }, }; @@ -1990,6 +2244,12 @@ static struct spear_muxreg ssp1_dis_sd_muxreg[] = { .mask = PMX_MCIADDR0ALE_MASK | PMX_MCIADDR2_MASK | PMX_MCICECF_MASK | PMX_MCICEXD_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_2, + .mask = PMX_MCIADDR0ALE_MASK | PMX_MCIADDR2_MASK | + PMX_MCICECF_MASK | PMX_MCICEXD_MASK, + .val = PMX_MCIADDR0ALE_MASK | PMX_MCIADDR2_MASK | + PMX_MCICECF_MASK | PMX_MCICEXD_MASK, }, }; @@ -2024,6 +2284,12 @@ static struct spear_muxreg gpt64_muxreg[] = { .mask = PMX_MCICDCF1_MASK | PMX_MCICDCF2_MASK | PMX_MCICDXD_MASK | PMX_MCILEDS_MASK, .val = 0, + }, { + .reg = PAD_DIRECTION_SEL_2, + .mask = PMX_MCICDCF1_MASK | PMX_MCICDCF2_MASK | PMX_MCICDXD_MASK + | PMX_MCILEDS_MASK, + .val = PMX_MCICDCF1_MASK | PMX_MCICDCF2_MASK | PMX_MCICDXD_MASK + | PMX_MCILEDS_MASK, }, }; -- cgit v0.10.2 From 35d14806948f0e97e86c3199489ff6a826df1a3c Mon Sep 17 00:00:00 2001 From: Deepak Sikri Date: Sat, 27 Oct 2012 14:47:53 +0530 Subject: pinctrl: SPEAr1340: Make DDR reset & clock pads as gpio Some gpio pins are used to control DDR reset and clock enable while the system is moved into Low power. This patch adds in the corresponding GPIO entries in the pads_as_gpio_pins to ensure the pads are available as gpio's. Signed-off-by: Deepak Sikri Signed-off-by: Viresh Kumar Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/spear/pinctrl-spear1340.c b/drivers/pinctrl/spear/pinctrl-spear1340.c index a0eb057..3963675 100644 --- a/drivers/pinctrl/spear/pinctrl-spear1340.c +++ b/drivers/pinctrl/spear/pinctrl-spear1340.c @@ -213,7 +213,7 @@ static const struct pinctrl_pin_desc spear1340_pins[] = { * Pad multiplexing for making all pads as gpio's. This is done to override the * values passed from bootloader and start from scratch. */ -static const unsigned pads_as_gpio_pins[] = { 251 }; +static const unsigned pads_as_gpio_pins[] = { 12, 88, 89, 251 }; static struct spear_muxreg pads_as_gpio_muxreg[] = { { .reg = PAD_FUNCTION_EN_1, -- cgit v0.10.2 From 0504271c8dfe2247401de4f153e9224535e622c2 Mon Sep 17 00:00:00 2001 From: Vipul Kumar Samar Date: Sat, 27 Oct 2012 14:47:54 +0530 Subject: pinctrl: SPEAr1340: Add clcd sleep mode pin configuration CLCD pads must be configured differently for sleep mode. This patch adds support for clcd_sleep_pingroup. Signed-off-by: Vipul Kumar Samar Signed-off-by: Viresh Kumar Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/spear/pinctrl-spear1340.c b/drivers/pinctrl/spear/pinctrl-spear1340.c index 3963675..0606b8c 100644 --- a/drivers/pinctrl/spear/pinctrl-spear1340.c +++ b/drivers/pinctrl/spear/pinctrl-spear1340.c @@ -1692,7 +1692,43 @@ static struct spear_pingroup clcd_pingroup = { .nmodemuxs = ARRAY_SIZE(clcd_modemux), }; -static const char *const clcd_grps[] = { "clcd_grp" }; +/* Disable cld runtime to save panel damage */ +static struct spear_muxreg clcd_sleep_muxreg[] = { + { + .reg = PAD_SHARED_IP_EN_1, + .mask = ARM_TRACE_MASK | MIPHY_DBG_MASK, + .val = 0, + }, { + .reg = PAD_FUNCTION_EN_5, + .mask = CLCD_REG4_MASK | CLCD_AND_ARM_TRACE_REG4_MASK, + .val = 0x0, + }, { + .reg = PAD_FUNCTION_EN_6, + .mask = CLCD_AND_ARM_TRACE_REG5_MASK, + .val = 0x0, + }, { + .reg = PAD_FUNCTION_EN_7, + .mask = CLCD_AND_ARM_TRACE_REG6_MASK, + .val = 0x0, + }, +}; + +static struct spear_modemux clcd_sleep_modemux[] = { + { + .muxregs = clcd_sleep_muxreg, + .nmuxregs = ARRAY_SIZE(clcd_sleep_muxreg), + }, +}; + +static struct spear_pingroup clcd_sleep_pingroup = { + .name = "clcd_sleep_grp", + .pins = clcd_pins, + .npins = ARRAY_SIZE(clcd_pins), + .modemuxs = clcd_sleep_modemux, + .nmodemuxs = ARRAY_SIZE(clcd_sleep_modemux), +}; + +static const char *const clcd_grps[] = { "clcd_grp", "clcd_sleep_grp" }; static struct spear_function clcd_function = { .name = "clcd", .groups = clcd_grps, @@ -1893,6 +1929,7 @@ static struct spear_pingroup *spear1340_pingroups[] = { &sdhci_pingroup, &cf_pingroup, &xd_pingroup, + &clcd_sleep_pingroup, &clcd_pingroup, &arm_trace_pingroup, &miphy_dbg_pingroup, -- cgit v0.10.2 From ae24c3191ba2ab03ec6b4be323e730e00404b4b6 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 5 Nov 2012 12:32:46 +0100 Subject: ALSA: hda - Force to reset IEC958 status bits for AD codecs Several bug reports suggest that the forcibly resetting IEC958 status bits is required for AD codecs to get the SPDIF output working properly after changing streams. Original fix credit to Javeed Shaikh. BugLink: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/359361 Reported-by: Robin Kreis Cc: Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c index cdd43ea..1eeba73 100644 --- a/sound/pci/hda/patch_analog.c +++ b/sound/pci/hda/patch_analog.c @@ -545,6 +545,7 @@ static int ad198x_build_pcms(struct hda_codec *codec) if (spec->multiout.dig_out_nid) { info++; codec->num_pcms++; + codec->spdif_status_reset = 1; info->name = "AD198x Digital"; info->pcm_type = HDA_PCM_TYPE_SPDIF; info->stream[SNDRV_PCM_STREAM_PLAYBACK] = ad198x_pcm_digital_playback; -- cgit v0.10.2 From 3798f47aa276b332c30da499cb4df4577e2f8872 Mon Sep 17 00:00:00 2001 From: Sachin Prabhu Date: Mon, 5 Nov 2012 11:39:32 +0000 Subject: cifs: Do not lookup hashed negative dentry in cifs_atomic_open We do not need to lookup a hashed negative directory since we have already revalidated it before and have found it to be fine. This also prevents a crash in cifs_lookup() when it attempts to rehash the already hashed negative lookup dentry. The patch has been tested using the reproducer at https://bugzilla.redhat.com/show_bug.cgi?id=867344#c28 Cc: # 3.6.x Reported-by: Vit Zahradka Signed-off-by: Sachin Prabhu diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index 7c0a812..d3671f2 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -398,7 +398,16 @@ cifs_atomic_open(struct inode *inode, struct dentry *direntry, * in network traffic in the other paths. */ if (!(oflags & O_CREAT)) { - struct dentry *res = cifs_lookup(inode, direntry, 0); + struct dentry *res; + + /* + * Check for hashed negative dentry. We have already revalidated + * the dentry and it is fine. No need to perform another lookup. + */ + if (!d_unhashed(direntry)) + return -ENOENT; + + res = cifs_lookup(inode, direntry, 0); if (IS_ERR(res)) return PTR_ERR(res); -- cgit v0.10.2 From 987c285c2ae2e4e32aca3a9b3252d28171c75711 Mon Sep 17 00:00:00 2001 From: Arik Nemtsov Date: Mon, 5 Nov 2012 10:27:52 +0200 Subject: mac80211: sync acccess to tx_filtered/ps_tx_buf queues These are accessed without a lock when ending STA PSM. If the sta_cleanup timer accesses these lists at the same time, we might crash. This may fix some mysterious crashes we had during ieee80211_sta_ps_deliver_wakeup. Cc: stable@vger.kernel.org Signed-off-by: Arik Nemtsov Signed-off-by: Ido Yariv Signed-off-by: Johannes Berg diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 797dd36..89ccd3e 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -961,6 +961,7 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta) struct ieee80211_local *local = sdata->local; struct sk_buff_head pending; int filtered = 0, buffered = 0, ac; + unsigned long flags; clear_sta_flag(sta, WLAN_STA_SP); @@ -976,12 +977,16 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta) for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { int count = skb_queue_len(&pending), tmp; + spin_lock_irqsave(&sta->tx_filtered[ac].lock, flags); skb_queue_splice_tail_init(&sta->tx_filtered[ac], &pending); + spin_unlock_irqrestore(&sta->tx_filtered[ac].lock, flags); tmp = skb_queue_len(&pending); filtered += tmp - count; count = tmp; + spin_lock_irqsave(&sta->ps_tx_buf[ac].lock, flags); skb_queue_splice_tail_init(&sta->ps_tx_buf[ac], &pending); + spin_unlock_irqrestore(&sta->ps_tx_buf[ac].lock, flags); tmp = skb_queue_len(&pending); buffered += tmp - count; } -- cgit v0.10.2 From 7c34158231b2eda8dcbd297be2bb1559e69cb433 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Sun, 4 Nov 2012 09:29:17 +0100 Subject: iwlwifi: handle DMA mapping failures The RX replenish code doesn't handle DMA mapping failures, which will cause issues if there actually is a failure. This was reported by Shuah Khan who found a DMA mapping framework warning ("device driver failed to check map error"). Cc: stable@vger.kernel.org Reported-by: Shuah Khan Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c index 17c8e5d..bb69f8f 100644 --- a/drivers/net/wireless/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/iwlwifi/pcie/rx.c @@ -321,6 +321,14 @@ static void iwl_rx_allocate(struct iwl_trans *trans, gfp_t priority) dma_map_page(trans->dev, page, 0, PAGE_SIZE << trans_pcie->rx_page_order, DMA_FROM_DEVICE); + if (dma_mapping_error(trans->dev, rxb->page_dma)) { + rxb->page = NULL; + spin_lock_irqsave(&rxq->lock, flags); + list_add(&rxb->list, &rxq->rx_used); + spin_unlock_irqrestore(&rxq->lock, flags); + __free_pages(page, trans_pcie->rx_page_order); + return; + } /* dma address must be no more than 36 bits */ BUG_ON(rxb->page_dma & ~DMA_BIT_MASK(36)); /* and also 256 byte aligned! */ @@ -488,8 +496,19 @@ static void iwl_rx_handle_rxbuf(struct iwl_trans *trans, dma_map_page(trans->dev, rxb->page, 0, PAGE_SIZE << trans_pcie->rx_page_order, DMA_FROM_DEVICE); - list_add_tail(&rxb->list, &rxq->rx_free); - rxq->free_count++; + if (dma_mapping_error(trans->dev, rxb->page_dma)) { + /* + * free the page(s) as well to not break + * the invariant that the items on the used + * list have no page(s) + */ + __free_pages(rxb->page, trans_pcie->rx_page_order); + rxb->page = NULL; + list_add_tail(&rxb->list, &rxq->rx_used); + } else { + list_add_tail(&rxb->list, &rxq->rx_free); + rxq->free_count++; + } } else list_add_tail(&rxb->list, &rxq->rx_used); spin_unlock_irqrestore(&rxq->lock, flags); -- cgit v0.10.2 From b3c32c4f9565f93407921c0d8a4458042eb8998e Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Thu, 25 Oct 2012 09:36:03 +0800 Subject: PCI/PM: Fix proc config reg access for D3cold and bridge suspending In https://bugzilla.kernel.org/show_bug.cgi?id=48981 Peter reported that /proc/bus/pci/??/??.? does not work for 3.6. This is because the device configuration space registers are not accessible if the corresponding parent bridge is suspended or the device is put into D3cold state. This is the same as /sys/bus/pci/devices/0000:??:??.?/config access issue. So the function used to solve sysfs issue is used to solve this issue. This patch moves pci_config_pm_runtime_get()/_put() from pci/pci-sysfs.c to pci/pci.c and makes them extern so they can be used by both the sysfs and proc paths. [bhelgaas: changelog, references, reporters] Reference: https://bugzilla.kernel.org/show_bug.cgi?id=48981 Reference: https://bugzilla.kernel.org/show_bug.cgi?id=49031 Reported-by: Forrest Loomis Reported-by: Peter Reported-by: Micael Dias Signed-off-by: Huang Ying Signed-off-by: Bjorn Helgaas Acked-by: Rafael J. Wysocki CC: stable@vger.kernel.org # v3.6+ diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 02d107b..f39378d 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -458,40 +458,6 @@ boot_vga_show(struct device *dev, struct device_attribute *attr, char *buf) } struct device_attribute vga_attr = __ATTR_RO(boot_vga); -static void -pci_config_pm_runtime_get(struct pci_dev *pdev) -{ - struct device *dev = &pdev->dev; - struct device *parent = dev->parent; - - if (parent) - pm_runtime_get_sync(parent); - pm_runtime_get_noresume(dev); - /* - * pdev->current_state is set to PCI_D3cold during suspending, - * so wait until suspending completes - */ - pm_runtime_barrier(dev); - /* - * Only need to resume devices in D3cold, because config - * registers are still accessible for devices suspended but - * not in D3cold. - */ - if (pdev->current_state == PCI_D3cold) - pm_runtime_resume(dev); -} - -static void -pci_config_pm_runtime_put(struct pci_dev *pdev) -{ - struct device *dev = &pdev->dev; - struct device *parent = dev->parent; - - pm_runtime_put(dev); - if (parent) - pm_runtime_put_sync(parent); -} - static ssize_t pci_read_config(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 5485883..aabf647 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1858,6 +1858,38 @@ bool pci_dev_run_wake(struct pci_dev *dev) } EXPORT_SYMBOL_GPL(pci_dev_run_wake); +void pci_config_pm_runtime_get(struct pci_dev *pdev) +{ + struct device *dev = &pdev->dev; + struct device *parent = dev->parent; + + if (parent) + pm_runtime_get_sync(parent); + pm_runtime_get_noresume(dev); + /* + * pdev->current_state is set to PCI_D3cold during suspending, + * so wait until suspending completes + */ + pm_runtime_barrier(dev); + /* + * Only need to resume devices in D3cold, because config + * registers are still accessible for devices suspended but + * not in D3cold. + */ + if (pdev->current_state == PCI_D3cold) + pm_runtime_resume(dev); +} + +void pci_config_pm_runtime_put(struct pci_dev *pdev) +{ + struct device *dev = &pdev->dev; + struct device *parent = dev->parent; + + pm_runtime_put(dev); + if (parent) + pm_runtime_put_sync(parent); +} + /** * pci_pm_init - Initialize PM functions of given PCI device * @dev: PCI device to handle. diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index bacbcba..fd92aab 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -72,6 +72,8 @@ extern void pci_disable_enabled_device(struct pci_dev *dev); extern int pci_finish_runtime_suspend(struct pci_dev *dev); extern int __pci_pme_wakeup(struct pci_dev *dev, void *ign); extern void pci_wakeup_bus(struct pci_bus *bus); +extern void pci_config_pm_runtime_get(struct pci_dev *dev); +extern void pci_config_pm_runtime_put(struct pci_dev *dev); extern void pci_pm_init(struct pci_dev *dev); extern void platform_pci_wakeup_init(struct pci_dev *dev); extern void pci_allocate_cap_save_buffers(struct pci_dev *dev); diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c index eb907a8f..9b8505c 100644 --- a/drivers/pci/proc.c +++ b/drivers/pci/proc.c @@ -76,6 +76,8 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp if (!access_ok(VERIFY_WRITE, buf, cnt)) return -EINVAL; + pci_config_pm_runtime_get(dev); + if ((pos & 1) && cnt) { unsigned char val; pci_user_read_config_byte(dev, pos, &val); @@ -121,6 +123,8 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp cnt--; } + pci_config_pm_runtime_put(dev); + *ppos = pos; return nbytes; } @@ -146,6 +150,8 @@ proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, lof if (!access_ok(VERIFY_READ, buf, cnt)) return -EINVAL; + pci_config_pm_runtime_get(dev); + if ((pos & 1) && cnt) { unsigned char val; __get_user(val, buf); @@ -191,6 +197,8 @@ proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, lof cnt--; } + pci_config_pm_runtime_put(dev); + *ppos = pos; i_size_write(ino, dp->size); return nbytes; -- cgit v0.10.2 From 3300fb4f88688029fff8dfb9ec0734f6e4cba3e7 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Mon, 5 Nov 2012 21:54:39 +0100 Subject: hwmon: (w83627ehf) Force initial bank selection Don't assume bank 0 is selected at device probe time. This may not be the case. Force bank selection at first register access to guarantee that we read the right registers upon driver loading. Signed-off-by: Jean Delvare Reviewed-by: Guenter Roeck Cc: stable@vger.kernel.org diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index 1821b74..de3c7e0 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -2083,6 +2083,7 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev) mutex_init(&data->lock); mutex_init(&data->update_lock); data->name = w83627ehf_device_names[sio_data->kind]; + data->bank = 0xff; /* Force initial bank selection */ platform_set_drvdata(pdev, data); /* 627EHG and 627EHF have 10 voltage inputs; 627DHG and 667HG have 9 */ -- cgit v0.10.2 From 4101ece3a226e68a5335dd8a15c7ab8663972b81 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Mon, 5 Nov 2012 21:54:40 +0100 Subject: hwmon: Fix chip feature table headers These got broken by recent patches fixing checkpatch warnings in these drivers. The trick is that the patches themselves looked good, but the source files after applying them do not. That's why I am not a big fan of using tabs inside comments. Signed-off-by: Jean Delvare Acked-by: Guenter Roeck diff --git a/drivers/hwmon/asb100.c b/drivers/hwmon/asb100.c index a227be4..520e5bf 100644 --- a/drivers/hwmon/asb100.c +++ b/drivers/hwmon/asb100.c @@ -32,7 +32,7 @@ * ASB100-A supports pwm1, while plain ASB100 does not. There is no known * way for the driver to tell which one is there. * - * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA + * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA * asb100 7 3 1 4 0x31 0x0694 yes no */ diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c index 5b1a6a6..af15899 100644 --- a/drivers/hwmon/w83627hf.c +++ b/drivers/hwmon/w83627hf.c @@ -25,7 +25,7 @@ /* * Supports following chips: * - * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA + * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA * w83627hf 9 3 2 3 0x20 0x5ca3 no yes(LPC) * w83627thf 7 3 3 3 0x90 0x5ca3 no yes(LPC) * w83637hf 7 3 3 3 0x80 0x5ca3 no yes(LPC) diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c index 5a5046d..20f11d3 100644 --- a/drivers/hwmon/w83781d.c +++ b/drivers/hwmon/w83781d.c @@ -24,7 +24,7 @@ /* * Supports following chips: * - * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA + * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA * as99127f 7 3 0 3 0x31 0x12c3 yes no * as99127f rev.2 (type_name = as99127f) 0x31 0x5ca3 yes no * w83781d 7 3 0 3 0x10-1 0x5ca3 yes yes diff --git a/drivers/hwmon/w83791d.c b/drivers/hwmon/w83791d.c index 39ab7bc..ed397c6 100644 --- a/drivers/hwmon/w83791d.c +++ b/drivers/hwmon/w83791d.c @@ -22,7 +22,7 @@ /* * Supports following chips: * - * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA + * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA * w83791d 10 5 5 3 0x71 0x5ca3 yes no * * The w83791d chip appears to be part way between the 83781d and the diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c index 0536452..301942d 100644 --- a/drivers/hwmon/w83792d.c +++ b/drivers/hwmon/w83792d.c @@ -31,7 +31,7 @@ /* * Supports following chips: * - * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA + * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA * w83792d 9 7 7 3 0x7a 0x5ca3 yes no */ diff --git a/drivers/hwmon/w83l786ng.c b/drivers/hwmon/w83l786ng.c index f0e8286..79710bc 100644 --- a/drivers/hwmon/w83l786ng.c +++ b/drivers/hwmon/w83l786ng.c @@ -20,7 +20,7 @@ /* * Supports following chips: * - * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA + * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA * w83l786ng 3 2 2 2 0x7b 0x5ca3 yes no */ -- cgit v0.10.2 From ff8e59bc4ec3f31789a47dce9b6fe44bd7bc5fcc Mon Sep 17 00:00:00 2001 From: Taku Izumi Date: Wed, 31 Oct 2012 09:51:48 +0900 Subject: PCI/portdrv: Don't create hotplug slots unless port supports hotplug Commit 2dcfaf85 mistakenly dropped the "flags & PCI_EXP_FLAGS_SLOT" test, so now we create hotplug slots even for PCIe port devices that don't support hotplug. This patch fixes this problem. [bhelgaas: changelog] Signed-off-by: Taku Izumi Signed-off-by: Bjorn Helgaas Acked-by: Yinghai Lu Reviewed-by: Jiang Liu diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index d03a7a3..ed129b4 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -272,7 +272,8 @@ static int get_port_device_capability(struct pci_dev *dev) } /* Hot-Plug Capable */ - if (cap_mask & PCIE_PORT_SERVICE_HP) { + if ((cap_mask & PCIE_PORT_SERVICE_HP) && + dev->pcie_flags_reg & PCI_EXP_FLAGS_SLOT) { pcie_capability_read_dword(dev, PCI_EXP_SLTCAP, ®32); if (reg32 & PCI_EXP_SLTCAP_HPC) { services |= PCIE_PORT_SERVICE_HP; -- cgit v0.10.2 From 73c503cb981394872db41dd5cde385cb5373b4b9 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 5 Nov 2012 15:46:36 -0800 Subject: ARM: OMAP4: PM: fix regulator name for VDD_MPU commit 24d7b40a (ARM: OMAP2+: PM: MPU DVFS: use generic CPU device for MPU-SS) updated the regulator name used for the MPU regulator, but only updated OMAP3, not OMAP4. Fix the OMAP4 name as well, otherwise CPUfreq fails to find the MPU regulator. Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c index 635e109..44c4205 100644 --- a/arch/arm/mach-omap2/twl-common.c +++ b/arch/arm/mach-omap2/twl-common.c @@ -366,7 +366,7 @@ static struct regulator_init_data omap4_clk32kg_idata = { }; static struct regulator_consumer_supply omap4_vdd1_supply[] = { - REGULATOR_SUPPLY("vcc", "mpu.0"), + REGULATOR_SUPPLY("vcc", "cpu0"), }; static struct regulator_consumer_supply omap4_vdd2_supply[] = { -- cgit v0.10.2 From f6a79af8f3701b5a0df431a76adee212616154dc Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Tue, 6 Nov 2012 11:46:59 +1030 Subject: modules: don't break modules_install on external modules with no key. The script still spits out an error ("Can't read private key") but we don't break modules_install. Reported-by: Bruno Wolff III Original-patch-by: Josh Boyer Signed-off-by: Rusty Russell diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst index dda4b2b..ecbb447 100644 --- a/scripts/Makefile.modinst +++ b/scripts/Makefile.modinst @@ -16,8 +16,9 @@ PHONY += $(modules) __modinst: $(modules) @: +# Don't stop modules_install if we can't sign external modules. quiet_cmd_modules_install = INSTALL $@ - cmd_modules_install = mkdir -p $(2); cp $@ $(2) ; $(mod_strip_cmd) $(2)/$(notdir $@) ; $(mod_sign_cmd) $(2)/$(notdir $@) + cmd_modules_install = mkdir -p $(2); cp $@ $(2) ; $(mod_strip_cmd) $(2)/$(notdir $@) ; $(mod_sign_cmd) $(2)/$(notdir $@) $(patsubst %,|| true,$(KBUILD_EXTMOD)) # Modules built outside the kernel source tree go into extra by default INSTALL_MOD_DIR ?= extra -- cgit v0.10.2 From 55c6f4cb6ef49afbb86222c6a3ff85329199c729 Mon Sep 17 00:00:00 2001 From: Eric Millbrandt Date: Fri, 2 Nov 2012 17:05:44 -0400 Subject: ASoC: wm8978: pll incorrectly configured when codec is master When MCLK is supplied externally and BCLK and LRC are configured as outputs (codec is master), the PLL values are only calculated correctly on the first transmission. On subsequent transmissions, at differenct sample rates, the wrong PLL values are used. Test for f_opclk instead of f_pllout to determine if the PLL values are needed. Signed-off-by: Eric Millbrandt Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/codecs/wm8978.c b/sound/soc/codecs/wm8978.c index 5421fd9..4c0a8e4 100644 --- a/sound/soc/codecs/wm8978.c +++ b/sound/soc/codecs/wm8978.c @@ -782,7 +782,7 @@ static int wm8978_hw_params(struct snd_pcm_substream *substream, wm8978->mclk_idx = -1; f_sel = wm8978->f_mclk; } else { - if (!wm8978->f_pllout) { + if (!wm8978->f_opclk) { /* We only enter here, if OPCLK is not used */ int ret = wm8978_configure_pll(codec); if (ret < 0) -- cgit v0.10.2 From 924da31416f20a8ee7a9008dd4e6e6054bc36b1b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 6 Nov 2012 15:04:30 +0800 Subject: pinctrl: samsung and exynos need to depend on OF && GPIOLIB This patch fixes below build error when !CONFIG_OF_GPIO. CC drivers/pinctrl/pinctrl-samsung.o drivers/pinctrl/pinctrl-samsung.c: In function 'samsung_pinctrl_parse_dt_pins': drivers/pinctrl/pinctrl-samsung.c:557:19: warning: unused variable 'prop' [-Wunused-variable] drivers/pinctrl/pinctrl-samsung.c: In function 'samsung_gpiolib_register': drivers/pinctrl/pinctrl-samsung.c:797:5: error: 'struct gpio_chip' has no member named 'of_node' make[2]: *** [drivers/pinctrl/pinctrl-samsung.o] Error 1 make[1]: *** [drivers/pinctrl] Error 2 make: *** [drivers] Error 2 The samsung pinctrl driver supports only device tree enabled platforms. Thus make PINCTRL_SAMSUNG depend on OF && GPIOLIB. The reason to depend on GPIOLIB is CONFIG_OF_GPIO only available when GPIOLIB is selected. Since PINCTRL_EXYNOS4 select PINCTRL_SAMSUNG, thus also make PINCTRL_EXYNOS4 depend on OF && GPIOLIB. Signed-off-by: Axel Lin Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 7bf914d..d96caef 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -179,11 +179,13 @@ config PINCTRL_COH901 config PINCTRL_SAMSUNG bool "Samsung pinctrl driver" + depends on OF && GPIOLIB select PINMUX select PINCONF config PINCTRL_EXYNOS4 bool "Pinctrl driver data for Exynos4 SoC" + depends on OF && GPIOLIB select PINCTRL_SAMSUNG config PINCTRL_MVEBU -- cgit v0.10.2 From 4a8dece21eea0ad6aca442272673d48693cd93b4 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Mon, 5 Nov 2012 13:51:51 +0200 Subject: drm/i915/crt: fix DPMS standby and suspend mode handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit PCH platforms and VLV should map DPMS standby and suspend modes to off, but due to a buggy reversed comparison this is done on pre-PCH platforms instead. Reported-by: Loïc Yhuel Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=56754 Signed-off-by: Jani Nikula Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index b726b47..6345878 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -143,7 +143,7 @@ static void intel_crt_dpms(struct drm_connector *connector, int mode) int old_dpms; /* PCH platforms and VLV only support on/off. */ - if (INTEL_INFO(dev)->gen < 5 && mode != DRM_MODE_DPMS_ON) + if (INTEL_INFO(dev)->gen >= 5 && mode != DRM_MODE_DPMS_ON) mode = DRM_MODE_DPMS_OFF; if (mode == connector->dpms) -- cgit v0.10.2 From e32643544d8d9e7776daf0a4e803c57b54ba77f0 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 25 Oct 2012 22:20:37 -0500 Subject: ARM: highbank: retry wfi on reset request In some cases, an interrupt can occur and prevent cause failure to enter wfi. This causes reset to hang. Retrying the wfi should be enough to prevent reset from hanging. Signed-off-by: Rob Herring Signed-off-by: Olof Johansson diff --git a/arch/arm/mach-highbank/system.c b/arch/arm/mach-highbank/system.c index 82c27230..86e37cd 100644 --- a/arch/arm/mach-highbank/system.c +++ b/arch/arm/mach-highbank/system.c @@ -28,6 +28,7 @@ void highbank_restart(char mode, const char *cmd) hignbank_set_pwr_soft_reset(); scu_power_mode(scu_base_addr, SCU_PM_POWEROFF); - cpu_do_idle(); + while (1) + cpu_do_idle(); } -- cgit v0.10.2 From 64e104771351d365e51e588a0e9a656ae6ed2f50 Mon Sep 17 00:00:00 2001 From: Aristeu Rozanski Date: Tue, 6 Nov 2012 07:25:04 -0800 Subject: device_cgroup: fix unchecked cgroup parent usage In 4cef7299b478687 ("device_cgroup: add proper checking when changing default behavior") the cgroup parent usage is unchecked. root will not have a parent and trying to use device.{allow,deny} will cause problems. For some reason my stressing scripts didn't test the root directory so I didn't catch it on my regular tests. Signed-off-by: Aristeu Rozanski Cc: Li Zefan Cc: James Morris Cc: Pavel Emelyanov Acked-by: Serge E. Hallyn Cc: Jiri Slaby Cc: Tejun Heo Signed-off-by: Tejun Heo diff --git a/security/device_cgroup.c b/security/device_cgroup.c index 842c254..96d87ea 100644 --- a/security/device_cgroup.c +++ b/security/device_cgroup.c @@ -352,6 +352,8 @@ static int parent_has_perm(struct dev_cgroup *childcg, */ static inline int may_allow_all(struct dev_cgroup *parent) { + if (!parent) + return 1; return parent->behavior == DEVCG_DEFAULT_ALLOW; } @@ -376,11 +378,14 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, int count, rc; struct dev_exception_item ex; struct cgroup *p = devcgroup->css.cgroup; - struct dev_cgroup *parent = cgroup_to_devcgroup(p->parent); + struct dev_cgroup *parent = NULL; if (!capable(CAP_SYS_ADMIN)) return -EPERM; + if (p->parent) + parent = cgroup_to_devcgroup(p->parent); + memset(&ex, 0, sizeof(ex)); b = buffer; @@ -391,11 +396,14 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, if (!may_allow_all(parent)) return -EPERM; dev_exception_clean(devcgroup); + devcgroup->behavior = DEVCG_DEFAULT_ALLOW; + if (!parent) + break; + rc = dev_exceptions_copy(&devcgroup->exceptions, &parent->exceptions); if (rc) return rc; - devcgroup->behavior = DEVCG_DEFAULT_ALLOW; break; case DEVCG_DENY: dev_exception_clean(devcgroup); -- cgit v0.10.2 From 36e42a323cf0de26bd819448b024d3851fc0d865 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 1 Nov 2012 22:02:50 -0600 Subject: irqchip: irq-bcm2835: Add terminating entry for of_device_id table The of_device_id table is supposed to be zero-terminated. Signed-off-by: Axel Lin Signed-off-by: Stephen Warren Signed-off-by: Olof Johansson diff --git a/drivers/irqchip/irq-bcm2835.c b/drivers/irqchip/irq-bcm2835.c index dc670cc..16c78f1 100644 --- a/drivers/irqchip/irq-bcm2835.c +++ b/drivers/irqchip/irq-bcm2835.c @@ -168,7 +168,8 @@ static int __init armctrl_of_init(struct device_node *node, } static struct of_device_id irq_of_match[] __initconst = { - { .compatible = "brcm,bcm2835-armctrl-ic", .data = armctrl_of_init } + { .compatible = "brcm,bcm2835-armctrl-ic", .data = armctrl_of_init }, + { } }; void __init bcm2835_init_irq(void) -- cgit v0.10.2 From 201e72acb2d3821e2de9ce6091e98859c316b29a Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 6 Nov 2012 09:17:37 -0800 Subject: device_cgroup: fix RCU usage dev_cgroup->exceptions is protected with devcgroup_mutex for writes and RCU for reads; however, RCU usage isn't correct. * dev_exception_clean() doesn't use RCU variant of list_del() and kfree(). The function can race with may_access() and may_access() may end up dereferencing already freed memory. Use list_del_rcu() and kfree_rcu() instead. * may_access() may be called only with RCU read locked but doesn't use RCU safe traversal over ->exceptions. Use list_for_each_entry_rcu(). Signed-off-by: Tejun Heo Acked-by: Serge E. Hallyn Cc: stable@vger.kernel.org Cc: Aristeu Rozanski Cc: Li Zefan diff --git a/security/device_cgroup.c b/security/device_cgroup.c index 96d87ea..b08d20c 100644 --- a/security/device_cgroup.c +++ b/security/device_cgroup.c @@ -164,8 +164,8 @@ static void dev_exception_clean(struct dev_cgroup *dev_cgroup) struct dev_exception_item *ex, *tmp; list_for_each_entry_safe(ex, tmp, &dev_cgroup->exceptions, list) { - list_del(&ex->list); - kfree(ex); + list_del_rcu(&ex->list); + kfree_rcu(ex, rcu); } } @@ -298,7 +298,7 @@ static int may_access(struct dev_cgroup *dev_cgroup, struct dev_exception_item *ex; bool match = false; - list_for_each_entry(ex, &dev_cgroup->exceptions, list) { + list_for_each_entry_rcu(ex, &dev_cgroup->exceptions, list) { if ((refex->type & DEV_BLOCK) && !(ex->type & DEV_BLOCK)) continue; if ((refex->type & DEV_CHAR) && !(ex->type & DEV_CHAR)) -- cgit v0.10.2 From 619506d5dabb49b7f223a4f2f6b8d697574dd799 Mon Sep 17 00:00:00 2001 From: Cornelia Huck Date: Mon, 2 Apr 2012 18:22:45 +0200 Subject: s390: Move css limits from drivers/s390/cio/ to include/asm/. There's no need to keep __MAX_SUBCHANNEL and __MAX_SSID private to the common I/O layer when __MAX_CSSID is usable by everybody. Signed-off-by: Cornelia Huck Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h index 55bde60..ad2b924 100644 --- a/arch/s390/include/asm/cio.h +++ b/arch/s390/include/asm/cio.h @@ -9,6 +9,8 @@ #define LPM_ANYPATH 0xff #define __MAX_CSSID 0 +#define __MAX_SUBCHANNEL 65535 +#define __MAX_SSID 3 #include diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index 33bb4d8..4af3dfe 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -112,9 +112,6 @@ extern int for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *); extern void css_reiterate_subchannels(void); void css_update_ssd_info(struct subchannel *sch); -#define __MAX_SUBCHANNEL 65535 -#define __MAX_SSID 3 - struct channel_subsystem { u8 cssid; int valid; -- cgit v0.10.2 From 99e639b791f5cfae0b8d42f5fe6c1e8839932bea Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 31 Oct 2012 17:14:39 +0100 Subject: s390/sclp: fix addressing mode clobber The early mini sclp driver may be called in zArch mode either in 31 or 64 bit addressing mode. If called in 31 bit addressing mode the new external interrupt psw however would switch to 64 bit addressing mode. This would cause an addressing exception within the interrupt handler, since the code didn't expect the zArch/31 bit addressing mode combination. Fix this by setting the new psw addressing mode bits so they fit the current addressing mode. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/kernel/sclp.S b/arch/s390/kernel/sclp.S index bf05389..b6506ee 100644 --- a/arch/s390/kernel/sclp.S +++ b/arch/s390/kernel/sclp.S @@ -44,6 +44,12 @@ _sclp_wait_int: #endif mvc .LoldpswS1-.LbaseS1(16,%r13),0(%r8) mvc 0(16,%r8),0(%r9) +#ifdef CONFIG_64BIT + epsw %r6,%r7 # set current addressing mode + nill %r6,0x1 # in new psw (31 or 64 bit mode) + nilh %r7,0x8000 + stm %r6,%r7,0(%r8) +#endif lhi %r6,0x0200 # cr mask for ext int (cr0.54) ltr %r2,%r2 jz .LsetctS1 @@ -87,7 +93,7 @@ _sclp_wait_int: .long 0x00080000, 0x80000000+.LwaitS1 # PSW to handle ext int #ifdef CONFIG_64BIT .LextpswS1_64: - .quad 0x0000000180000000, .LwaitS1 # PSW to handle ext int, 64 bit + .quad 0, .LwaitS1 # PSW to handle ext int, 64 bit #endif .LwaitpswS1: .long 0x010a0000, 0x00000000+.LloopS1 # PSW to wait for ext int -- cgit v0.10.2 From 7f0bc6c0d45497a0191e99426785954bcbda3c6c Mon Sep 17 00:00:00 2001 From: Sebastian Ott Date: Tue, 6 Nov 2012 15:10:05 +0100 Subject: s390/cio: fix length calculation in idset.c bitmap_or uses the number of bits as its length parameter and not the number of words necessary to store those bits. This fixes a regression introduced by: aa92b33 s390/cio: use generic bitmap functions Reported-by: Christian Ehrhardt Acked-by: Peter Oberparleiter Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky diff --git a/drivers/s390/cio/idset.c b/drivers/s390/cio/idset.c index 199bc67..65d13e3 100644 --- a/drivers/s390/cio/idset.c +++ b/drivers/s390/cio/idset.c @@ -125,8 +125,7 @@ int idset_is_empty(struct idset *set) void idset_add_set(struct idset *to, struct idset *from) { - int len = min(__BITOPS_WORDS(to->num_ssid * to->num_id), - __BITOPS_WORDS(from->num_ssid * from->num_id)); + int len = min(to->num_ssid * to->num_id, from->num_ssid * from->num_id); bitmap_or(to->bitmap, to->bitmap, from->bitmap, len); } -- cgit v0.10.2 From afe760e43d576aa8d3af4d9fd3913e52014a7571 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 6 Nov 2012 15:33:33 -0800 Subject: sparc: Allow OF_GPIO on sparc. Signed-off-by: David S. Miller diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index d055cee..f11d8e3 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -47,7 +47,7 @@ if GPIOLIB config OF_GPIO def_bool y - depends on OF && !SPARC + depends on OF config DEBUG_GPIO bool "Debug GPIO calls" -- cgit v0.10.2 From 0f1cb1bd94a9c967cd4ad3de51cfdabe61eb5dcc Mon Sep 17 00:00:00 2001 From: Ilija Hadzic Date: Mon, 29 Oct 2012 17:35:00 +0000 Subject: drm: restore open_count if drm_setup fails If drm_setup (called at first open) fails, the whole open call has failed, so we should not keep the open_count incremented. Signed-off-by: Ilija Hadzic Cc: stable@vger.kernel.org Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index 7ef1b67..af68eca 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -135,8 +135,11 @@ int drm_open(struct inode *inode, struct file *filp) retcode = drm_open_helper(inode, filp, dev); if (!retcode) { atomic_inc(&dev->counts[_DRM_STAT_OPENS]); - if (!dev->open_count++) + if (!dev->open_count++) { retcode = drm_setup(dev); + if (retcode) + dev->open_count--; + } } if (!retcode) { mutex_lock(&dev->struct_mutex); -- cgit v0.10.2 From fdb40a08ef7bc970899c3a1f471165f9c22763a1 Mon Sep 17 00:00:00 2001 From: Ilija Hadzic Date: Mon, 29 Oct 2012 17:35:01 +0000 Subject: drm: set dev_mapping before calling drm_open_helper Some drivers (specifically vmwgfx) look at dev_mapping in their open hook, so we have to set dev->dev_mapping earlier in the process. Reference: http://lists.freedesktop.org/archives/dri-devel/2012-October/029420.html Signed-off-by: Ilija Hadzic Reported-by: Thomas Hellstrom Cc: stable@vger.kernel.org Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index af68eca..133b413 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -121,6 +121,8 @@ int drm_open(struct inode *inode, struct file *filp) int minor_id = iminor(inode); struct drm_minor *minor; int retcode = 0; + int need_setup = 0; + struct address_space *old_mapping; minor = idr_find(&drm_minors_idr, minor_id); if (!minor) @@ -132,26 +134,37 @@ int drm_open(struct inode *inode, struct file *filp) if (drm_device_is_unplugged(dev)) return -ENODEV; + if (!dev->open_count++) + need_setup = 1; + mutex_lock(&dev->struct_mutex); + old_mapping = dev->dev_mapping; + if (old_mapping == NULL) + dev->dev_mapping = &inode->i_data; + /* ihold ensures nobody can remove inode with our i_data */ + ihold(container_of(dev->dev_mapping, struct inode, i_data)); + inode->i_mapping = dev->dev_mapping; + filp->f_mapping = dev->dev_mapping; + mutex_unlock(&dev->struct_mutex); + retcode = drm_open_helper(inode, filp, dev); - if (!retcode) { - atomic_inc(&dev->counts[_DRM_STAT_OPENS]); - if (!dev->open_count++) { - retcode = drm_setup(dev); - if (retcode) - dev->open_count--; - } - } - if (!retcode) { - mutex_lock(&dev->struct_mutex); - if (dev->dev_mapping == NULL) - dev->dev_mapping = &inode->i_data; - /* ihold ensures nobody can remove inode with our i_data */ - ihold(container_of(dev->dev_mapping, struct inode, i_data)); - inode->i_mapping = dev->dev_mapping; - filp->f_mapping = dev->dev_mapping; - mutex_unlock(&dev->struct_mutex); + if (retcode) + goto err_undo; + atomic_inc(&dev->counts[_DRM_STAT_OPENS]); + if (need_setup) { + retcode = drm_setup(dev); + if (retcode) + goto err_undo; } + return 0; +err_undo: + mutex_lock(&dev->struct_mutex); + filp->f_mapping = old_mapping; + inode->i_mapping = old_mapping; + iput(container_of(dev->dev_mapping, struct inode, i_data)); + dev->dev_mapping = old_mapping; + mutex_unlock(&dev->struct_mutex); + dev->open_count--; return retcode; } EXPORT_SYMBOL(drm_open); -- cgit v0.10.2 From 695ddeb457584a602f2ba117d08ce37cf6ec1589 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 5 Nov 2012 16:34:58 +0000 Subject: drm/radeon: fix typo in evergreen_mc_resume() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add missing index that may have led us to enabling more crtcs than necessary. May also fix: https://bugs.freedesktop.org/show_bug.cgi?id=56139 Signed-off-by: Alex Deucher Reviewed-by: Michel Dänzer Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 14313ad..af31f82 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -1372,7 +1372,7 @@ void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *s WREG32(BIF_FB_EN, FB_READ_EN | FB_WRITE_EN); for (i = 0; i < rdev->num_crtc; i++) { - if (save->crtc_enabled) { + if (save->crtc_enabled[i]) { if (ASIC_IS_DCE6(rdev)) { tmp = RREG32(EVERGREEN_CRTC_BLANK_CONTROL + crtc_offsets[i]); tmp |= EVERGREEN_CRTC_BLANK_DATA_EN; -- cgit v0.10.2 From 31df3bb78be614fb9125abe56972dfee79bd3e18 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 31 Oct 2012 22:07:39 +0100 Subject: iwlwifi: use ieee80211_free_txskb To let mac80211 clean up any TX information when a frame is dropped, use ieee80211_free_txskb(). Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c index ff8162d..fa4d1b8 100644 --- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c @@ -521,7 +521,7 @@ static void iwlagn_mac_tx(struct ieee80211_hw *hw, ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); if (iwlagn_tx_skb(priv, control->sta, skb)) - dev_kfree_skb_any(skb); + ieee80211_free_txskb(hw, skb); } static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c index 7ff3f14..408132c 100644 --- a/drivers/net/wireless/iwlwifi/dvm/main.c +++ b/drivers/net/wireless/iwlwifi/dvm/main.c @@ -2114,7 +2114,7 @@ static void iwl_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) info = IEEE80211_SKB_CB(skb); iwl_trans_free_tx_cmd(priv->trans, info->driver_data[1]); - dev_kfree_skb_any(skb); + ieee80211_free_txskb(priv->hw, skb); } static void iwl_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) -- cgit v0.10.2 From aaaf68c5629108f6078ab458d34a661143ea6857 Mon Sep 17 00:00:00 2001 From: Andrew Price Date: Fri, 12 Oct 2012 16:45:08 +0100 Subject: GFS2: Fix an unchecked error from gfs2_rs_alloc Check the return value of gfs2_rs_alloc(ip) and avoid a possible null pointer dereference. Signed-off-by: Andrew Price Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c index 40c4b0d..c5af8e1 100644 --- a/fs/gfs2/quota.c +++ b/fs/gfs2/quota.c @@ -497,8 +497,11 @@ int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid) struct gfs2_quota_data **qd; int error; - if (ip->i_res == NULL) - gfs2_rs_alloc(ip); + if (ip->i_res == NULL) { + error = gfs2_rs_alloc(ip); + if (error) + return error; + } qd = ip->i_res->rs_qa_qd; -- cgit v0.10.2 From cd0ed19fb614cb1315c0a510ec6c163d8324fd82 Mon Sep 17 00:00:00 2001 From: Andrew Price Date: Fri, 12 Oct 2012 16:45:09 +0100 Subject: GFS2: Fix possible null pointer deref in gfs2_rs_alloc Despite the return value from kmem_cache_zalloc() being checked, the error wasn't being returned until after a possible null pointer dereference. This patch returns the error immediately, allowing the removal of the error variable. Signed-off-by: Andrew Price Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index 3cc402c..43d1a20 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -553,7 +553,6 @@ void gfs2_free_clones(struct gfs2_rgrpd *rgd) */ int gfs2_rs_alloc(struct gfs2_inode *ip) { - int error = 0; struct gfs2_blkreserv *res; if (ip->i_res) @@ -561,7 +560,7 @@ int gfs2_rs_alloc(struct gfs2_inode *ip) res = kmem_cache_zalloc(gfs2_rsrv_cachep, GFP_NOFS); if (!res) - error = -ENOMEM; + return -ENOMEM; RB_CLEAR_NODE(&res->rs_node); @@ -571,7 +570,7 @@ int gfs2_rs_alloc(struct gfs2_inode *ip) else ip->i_res = res; up_write(&ip->i_rw_mutex); - return error; + return 0; } static void dump_rs(struct seq_file *seq, const struct gfs2_blkreserv *rs) -- cgit v0.10.2 From 73738a77f42c2d7f53fd61f73272c9dd6f520897 Mon Sep 17 00:00:00 2001 From: Andrew Price Date: Fri, 12 Oct 2012 16:45:10 +0100 Subject: GFS2: Clean up some unused assignments Cleans up two cases where variables were assigned values but then never used again. Signed-off-by: Andrew Price Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index 0def050..377a68d 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -677,10 +677,8 @@ static ssize_t gfs2_file_aio_write(struct kiocb *iocb, const struct iovec *iov, size_t writesize = iov_length(iov, nr_segs); struct dentry *dentry = file->f_dentry; struct gfs2_inode *ip = GFS2_I(dentry->d_inode); - struct gfs2_sbd *sdp; int ret; - sdp = GFS2_SB(file->f_mapping->host); ret = gfs2_rs_alloc(ip); if (ret) return ret; diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c index 8ff95a2..01e444b 100644 --- a/fs/gfs2/lops.c +++ b/fs/gfs2/lops.c @@ -621,7 +621,6 @@ static void revoke_lo_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd) static void revoke_lo_before_commit(struct gfs2_sbd *sdp) { - struct gfs2_log_descriptor *ld; struct gfs2_meta_header *mh; unsigned int offset; struct list_head *head = &sdp->sd_log_le_revoke; @@ -634,7 +633,6 @@ static void revoke_lo_before_commit(struct gfs2_sbd *sdp) length = gfs2_struct2blk(sdp, sdp->sd_log_num_revoke, sizeof(u64)); page = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_REVOKE, length, sdp->sd_log_num_revoke); - ld = page_address(page); offset = sizeof(struct gfs2_log_descriptor); list_for_each_entry(bd, head, bd_list) { -- cgit v0.10.2 From 3a238adefb8c5b8cb8cde0ce689d513306176ff4 Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Tue, 16 Oct 2012 11:39:07 +0200 Subject: GFS2: Require user to provide argument for FITRIM When the fstrim_range argument is not provided by user in FITRIM ioctl we should just return EFAULT and not promoting bad behaviour by filling the structure in kernel. Let the user deal with it. Signed-off-by: Lukas Czerner Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index 43d1a20..b6bbf71 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -1270,11 +1270,7 @@ int gfs2_fitrim(struct file *filp, void __user *argp) if (!blk_queue_discard(q)) return -EOPNOTSUPP; - if (argp == NULL) { - r.start = 0; - r.len = ULLONG_MAX; - r.minlen = 0; - } else if (copy_from_user(&r, argp, sizeof(r))) + if (copy_from_user(&r, argp, sizeof(r))) return -EFAULT; ret = gfs2_rindex_update(sdp); @@ -1323,7 +1319,7 @@ int gfs2_fitrim(struct file *filp, void __user *argp) out: r.len = trimmed << 9; - if (argp && copy_to_user(argp, &r, sizeof(r))) + if (copy_to_user(argp, &r, sizeof(r))) return -EFAULT; return ret; -- cgit v0.10.2 From 076f0faa764ab3a5a32fc726ae05e2de0e66151d Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Tue, 16 Oct 2012 11:39:08 +0200 Subject: GFS2: Fix FITRIM argument handling Currently implementation in gfs2 uses FITRIM arguments as it were in file system blocks units which is wrong. The FITRIM arguments (fstrim_range.start, fstrim_range.len and fstrim_range.minlen) are actually in bytes. Moreover, check for start argument beyond the end of file system, len argument being smaller than file system block and minlen argument being bigger than biggest resource group were missing. This commit converts the code to convert FITRIM argument to file system blocks and also adds appropriate checks mentioned above. All the problems were recognised by xfstests 251 and 260. Signed-off-by: Lukas Czerner Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index b6bbf71..38fe18f 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -1262,7 +1262,9 @@ int gfs2_fitrim(struct file *filp, void __user *argp) int ret = 0; u64 amt; u64 trimmed = 0; + u64 start, end, minlen; unsigned int x; + unsigned bs_shift = sdp->sd_sb.sb_bsize_shift; if (!capable(CAP_SYS_ADMIN)) return -EPERM; @@ -1277,8 +1279,18 @@ int gfs2_fitrim(struct file *filp, void __user *argp) if (ret) return ret; - rgd = gfs2_blk2rgrpd(sdp, r.start, 0); - rgd_end = gfs2_blk2rgrpd(sdp, r.start + r.len, 0); + start = r.start >> bs_shift; + end = start + (r.len >> bs_shift); + minlen = max_t(u64, r.minlen, + q->limits.discard_granularity) >> bs_shift; + + rgd = gfs2_blk2rgrpd(sdp, start, 0); + rgd_end = gfs2_blk2rgrpd(sdp, end - 1, 0); + + if (end <= start || + minlen > sdp->sd_max_rg_data || + start > rgd_end->rd_data0 + rgd_end->rd_data) + return -EINVAL; while (1) { @@ -1290,7 +1302,9 @@ int gfs2_fitrim(struct file *filp, void __user *argp) /* Trim each bitmap in the rgrp */ for (x = 0; x < rgd->rd_length; x++) { struct gfs2_bitmap *bi = rgd->rd_bits + x; - ret = gfs2_rgrp_send_discards(sdp, rgd->rd_data0, NULL, bi, r.minlen, &amt); + ret = gfs2_rgrp_send_discards(sdp, + rgd->rd_data0, NULL, bi, minlen, + &amt); if (ret) { gfs2_glock_dq_uninit(&gh); goto out; -- cgit v0.10.2 From 3d1626889a64bd5a661544d582036a0a02104a60 Mon Sep 17 00:00:00 2001 From: Benjamin Marzinski Date: Tue, 6 Nov 2012 00:49:28 -0600 Subject: GFS2: Don't call file_accessed() with a shared glock file_accessed() was being called by gfs2_mmap() with a shared glock. If it needed to update the atime, it was crashing because it dirtied the inode in gfs2_dirty_inode() without holding an exclusive lock. gfs2_dirty_inode() checked if the caller was already holding a glock, but it didn't make sure that the glock was in the exclusive state. Now, instead of calling file_accessed() while holding the shared lock in gfs2_mmap(), file_accessed() is called after grabbing and releasing the glock to update the inode. If file_accessed() needs to update the atime, it will grab an exclusive lock in gfs2_dirty_inode(). gfs2_dirty_inode() now also checks to make sure that if the calling process has already locked the glock, it has an exclusive lock. Signed-off-by: Benjamin Marzinski Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index 377a68d..e056b4c 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -516,15 +516,13 @@ static int gfs2_mmap(struct file *file, struct vm_area_struct *vma) struct gfs2_holder i_gh; int error; - gfs2_holder_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &i_gh); - error = gfs2_glock_nq(&i_gh); - if (error == 0) { - file_accessed(file); - gfs2_glock_dq(&i_gh); - } - gfs2_holder_uninit(&i_gh); + error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, + &i_gh); if (error) return error; + /* grab lock to update inode */ + gfs2_glock_dq_uninit(&i_gh); + file_accessed(file); } vma->vm_ops = &gfs2_vm_ops; diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index bc73726..d648867 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -810,7 +810,8 @@ static void gfs2_dirty_inode(struct inode *inode, int flags) return; } need_unlock = 1; - } + } else if (WARN_ON_ONCE(ip->i_gl->gl_state != LM_ST_EXCLUSIVE)) + return; if (current->journal_info == NULL) { ret = gfs2_trans_begin(sdp, RES_DINODE, 0); -- cgit v0.10.2 From 96e5d1d3adf56f1c7eeb07258f6a1a0a7ae9c489 Mon Sep 17 00:00:00 2001 From: Benjamin Marzinski Date: Wed, 7 Nov 2012 00:38:06 -0600 Subject: GFS2: Test bufdata with buffer locked and gfs2_log_lock held In gfs2_trans_add_bh(), gfs2 was testing if a there was a bd attached to the buffer without having the gfs2_log_lock held. It was then assuming it would stay attached for the rest of the function. However, without either the log lock being held of the buffer locked, __gfs2_ail_flush() could detach bd at any time. This patch moves the locking before the test. If there isn't a bd already attached, gfs2 can safely allocate one and attach it before locking. There is no way that the newly allocated bd could be on the ail list, and thus no way for __gfs2_ail_flush() to detach it. Signed-off-by: Benjamin Marzinski Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c index 01e444b..9ceccb1 100644 --- a/fs/gfs2/lops.c +++ b/fs/gfs2/lops.c @@ -393,12 +393,10 @@ static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd) struct gfs2_meta_header *mh; struct gfs2_trans *tr; - lock_buffer(bd->bd_bh); - gfs2_log_lock(sdp); tr = current->journal_info; tr->tr_touched = 1; if (!list_empty(&bd->bd_list)) - goto out; + return; set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags); mh = (struct gfs2_meta_header *)bd->bd_bh->b_data; @@ -414,9 +412,6 @@ static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd) sdp->sd_log_num_buf++; list_add(&bd->bd_list, &sdp->sd_log_le_buf); tr->tr_num_buf_new++; -out: - gfs2_log_unlock(sdp); - unlock_buffer(bd->bd_bh); } static void gfs2_check_magic(struct buffer_head *bh) @@ -775,12 +770,10 @@ static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd) struct address_space *mapping = bd->bd_bh->b_page->mapping; struct gfs2_inode *ip = GFS2_I(mapping->host); - lock_buffer(bd->bd_bh); - gfs2_log_lock(sdp); if (tr) tr->tr_touched = 1; if (!list_empty(&bd->bd_list)) - goto out; + return; set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags); if (gfs2_is_jdata(ip)) { @@ -791,9 +784,6 @@ static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd) } else { list_add_tail(&bd->bd_list, &sdp->sd_log_le_ordered); } -out: - gfs2_log_unlock(sdp); - unlock_buffer(bd->bd_bh); } /** diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c index adbd278..4136270 100644 --- a/fs/gfs2/trans.c +++ b/fs/gfs2/trans.c @@ -155,14 +155,22 @@ void gfs2_trans_add_bh(struct gfs2_glock *gl, struct buffer_head *bh, int meta) struct gfs2_sbd *sdp = gl->gl_sbd; struct gfs2_bufdata *bd; + lock_buffer(bh); + gfs2_log_lock(sdp); bd = bh->b_private; if (bd) gfs2_assert(sdp, bd->bd_gl == gl); else { + gfs2_log_unlock(sdp); + unlock_buffer(bh); gfs2_attach_bufdata(gl, bh, meta); bd = bh->b_private; + lock_buffer(bh); + gfs2_log_lock(sdp); } lops_add(sdp, bd); + gfs2_log_unlock(sdp); + unlock_buffer(bh); } void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd) -- cgit v0.10.2 From 5b3761954dac2d1393beef8210eb8cee81d16b8d Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 7 Nov 2012 10:32:47 +0100 Subject: ALSA: hda - Fix empty DAC filling in patch_via.c In via_auto_fill_adc_nids(), the parser tries to fill dac_nids[] at the point of the current line-out (i). When no valid path is found for this output, this results in dac = 0, thus it creates a hole in dac_nids[]. This confuses is_empty_dac() and trims the detected DAC in later reference. This patch fixes the bug by appending DAC properly to dac_nids[] in via_auto_fill_adc_nids(). Reported-by: Massimo Del Fedele Cc: Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c index 72a2f60..bf57fa6 100644 --- a/sound/pci/hda/patch_via.c +++ b/sound/pci/hda/patch_via.c @@ -1809,11 +1809,11 @@ static int via_auto_fill_dac_nids(struct hda_codec *codec) { struct via_spec *spec = codec->spec; const struct auto_pin_cfg *cfg = &spec->autocfg; - int i, dac_num; + int i; hda_nid_t nid; + spec->multiout.num_dacs = 0; spec->multiout.dac_nids = spec->private_dac_nids; - dac_num = 0; for (i = 0; i < cfg->line_outs; i++) { hda_nid_t dac = 0; nid = cfg->line_out_pins[i]; @@ -1824,16 +1824,13 @@ static int via_auto_fill_dac_nids(struct hda_codec *codec) if (!i && parse_output_path(codec, nid, dac, 1, &spec->out_mix_path)) dac = spec->out_mix_path.path[0]; - if (dac) { - spec->private_dac_nids[i] = dac; - dac_num++; - } + if (dac) + spec->private_dac_nids[spec->multiout.num_dacs++] = dac; } if (!spec->out_path[0].depth && spec->out_mix_path.depth) { spec->out_path[0] = spec->out_mix_path; spec->out_mix_path.depth = 0; } - spec->multiout.num_dacs = dac_num; return 0; } -- cgit v0.10.2 From ef4da45828603df57e5e21b8aa21a66ce309f79b Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 7 Nov 2012 10:37:48 +0100 Subject: ALSA: hda - Fix invalid connections in VT1802 codec VT1802 codec provides the invalid connection lists of NID 0x24 and 0x33 containing the routes to a non-exist widget 0x3e. This confuses the auto-parser. Fix it up in the driver by overriding these connections. Reported-by: Massimo Del Fedele Cc: Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c index bf57fa6..c2eef5c 100644 --- a/sound/pci/hda/patch_via.c +++ b/sound/pci/hda/patch_via.c @@ -3646,6 +3646,18 @@ static const struct snd_pci_quirk vt2002p_fixups[] = { {} }; +/* NIDs 0x24 and 0x33 on VT1802 have connections to non-existing NID 0x3e + * Replace this with mixer NID 0x1c + */ +static void fix_vt1802_connections(struct hda_codec *codec) +{ + static hda_nid_t conn_24[] = { 0x14, 0x1c }; + static hda_nid_t conn_33[] = { 0x1c }; + + snd_hda_override_conn_list(codec, 0x24, ARRAY_SIZE(conn_24), conn_24); + snd_hda_override_conn_list(codec, 0x33, ARRAY_SIZE(conn_33), conn_33); +} + /* patch for vt2002P */ static int patch_vt2002P(struct hda_codec *codec) { @@ -3660,6 +3672,8 @@ static int patch_vt2002P(struct hda_codec *codec) spec->aa_mix_nid = 0x21; override_mic_boost(codec, 0x2b, 0, 3, 40); override_mic_boost(codec, 0x29, 0, 3, 40); + if (spec->codec_type == VT1802) + fix_vt1802_connections(codec); add_secret_dac_path(codec); snd_hda_pick_fixup(codec, NULL, vt2002p_fixups, via_fixups); -- cgit v0.10.2 From d5266125fb439a5dfa4edd548d888fda47414ac5 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 7 Nov 2012 10:40:36 +0100 Subject: ALSA: hda - Add pin fixups for ASUS G75 To parse properly the subwoofer outputs on ASUS G75 laptop with VT1802 codec, correct the default configurations of speaker pins 0x24 and 0x33. Reported-by: Massimo Del Fedele Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c index c2eef5c..019e1a0 100644 --- a/sound/pci/hda/patch_via.c +++ b/sound/pci/hda/patch_via.c @@ -3625,6 +3625,7 @@ static void set_widgets_power_state_vt2002P(struct hda_codec *codec) */ enum { VIA_FIXUP_INTMIC_BOOST, + VIA_FIXUP_ASUS_G75, }; static void via_fixup_intmic_boost(struct hda_codec *codec, @@ -3639,9 +3640,19 @@ static const struct hda_fixup via_fixups[] = { .type = HDA_FIXUP_FUNC, .v.func = via_fixup_intmic_boost, }, + [VIA_FIXUP_ASUS_G75] = { + .type = HDA_FIXUP_PINS, + .v.pins = (const struct hda_pintbl[]) { + /* set 0x24 and 0x33 as speakers */ + { 0x24, 0x991301f0 }, + { 0x33, 0x991301f1 }, /* subwoofer */ + { } + } + }, }; static const struct snd_pci_quirk vt2002p_fixups[] = { + SND_PCI_QUIRK(0x1043, 0x1487, "Asus G75", VIA_FIXUP_ASUS_G75), SND_PCI_QUIRK(0x1043, 0x8532, "Asus X202E", VIA_FIXUP_INTMIC_BOOST), {} }; -- cgit v0.10.2 From 1e4db5f2b48401e7ac68e1b9b5323938223a6d15 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 5 Nov 2012 10:16:12 -0500 Subject: drm/radeon/dce3: switch back to old pll allocation order for discrete The order shouldn't matter, but this seems to cause regressions for certain specific cases. This should fix it for now. We probably need to investigate a proper fix in the next development cycle. Signed-off-by: Alex Deucher Cc: Andy Furniss diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 2e566e1..3bce029 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -1696,35 +1696,43 @@ static int radeon_atom_pick_pll(struct drm_crtc *crtc) return ATOM_PPLL2; DRM_ERROR("unable to allocate a PPLL\n"); return ATOM_PPLL_INVALID; - } else { - if (ASIC_IS_AVIVO(rdev)) { - /* in DP mode, the DP ref clock can come from either PPLL - * depending on the asic: - * DCE3: PPLL1 or PPLL2 - */ - if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) { - /* use the same PPLL for all DP monitors */ - pll = radeon_get_shared_dp_ppll(crtc); - if (pll != ATOM_PPLL_INVALID) - return pll; - } else { - /* use the same PPLL for all monitors with the same clock */ - pll = radeon_get_shared_nondp_ppll(crtc); - if (pll != ATOM_PPLL_INVALID) - return pll; - } - /* all other cases */ - pll_in_use = radeon_get_pll_use_mask(crtc); + } else if (ASIC_IS_AVIVO(rdev)) { + /* in DP mode, the DP ref clock can come from either PPLL + * depending on the asic: + * DCE3: PPLL1 or PPLL2 + */ + if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) { + /* use the same PPLL for all DP monitors */ + pll = radeon_get_shared_dp_ppll(crtc); + if (pll != ATOM_PPLL_INVALID) + return pll; + } else { + /* use the same PPLL for all monitors with the same clock */ + pll = radeon_get_shared_nondp_ppll(crtc); + if (pll != ATOM_PPLL_INVALID) + return pll; + } + /* all other cases */ + pll_in_use = radeon_get_pll_use_mask(crtc); + /* the order shouldn't matter here, but we probably + * need this until we have atomic modeset + */ + if (rdev->flags & RADEON_IS_IGP) { if (!(pll_in_use & (1 << ATOM_PPLL1))) return ATOM_PPLL1; if (!(pll_in_use & (1 << ATOM_PPLL2))) return ATOM_PPLL2; - DRM_ERROR("unable to allocate a PPLL\n"); - return ATOM_PPLL_INVALID; } else { - /* on pre-R5xx asics, the crtc to pll mapping is hardcoded */ - return radeon_crtc->crtc_id; + if (!(pll_in_use & (1 << ATOM_PPLL2))) + return ATOM_PPLL2; + if (!(pll_in_use & (1 << ATOM_PPLL1))) + return ATOM_PPLL1; } + DRM_ERROR("unable to allocate a PPLL\n"); + return ATOM_PPLL_INVALID; + } else { + /* on pre-R5xx asics, the crtc to pll mapping is hardcoded */ + return radeon_crtc->crtc_id; } } -- cgit v0.10.2 From 6268f74990c7fab6727bcb2dc82b3c4d4b302317 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Tue, 6 Nov 2012 16:33:18 +0000 Subject: ASoC: bells: Correct type in sub speaker DAI name for WM5102 Signed-off-by: Charles Keepax Signed-off-by: Mark Brown diff --git a/sound/soc/samsung/bells.c b/sound/soc/samsung/bells.c index b0d46d6..b56b9a3 100644 --- a/sound/soc/samsung/bells.c +++ b/sound/soc/samsung/bells.c @@ -247,7 +247,7 @@ static struct snd_soc_dai_link bells_dai_wm5110[] = { { .name = "Sub", .stream_name = "Sub", - .cpu_dai_name = "wm5110-aif3", + .cpu_dai_name = "wm5102-aif3", .codec_dai_name = "wm9081-hifi", .codec_name = "wm9081.1-006c", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF -- cgit v0.10.2 From 5c855c8e2be67f2d5a989ef1190098f924f9f820 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 7 Nov 2012 20:38:35 +0800 Subject: ASoC: cs42l52: fix the return value of cs42l52_set_fmt() Fix the return value of cs42l52_set_fmt() when clock inversion is not allowed and also remove the useless variable ret. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) [We had been assigning to ret but then ignoring the value we assgined -- broonie] Signed-off-by: Wei Yongjun Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/codecs/cs42l52.c b/sound/soc/codecs/cs42l52.c index 6159929..f91136c 100644 --- a/sound/soc/codecs/cs42l52.c +++ b/sound/soc/codecs/cs42l52.c @@ -773,7 +773,6 @@ static int cs42l52_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { struct snd_soc_codec *codec = codec_dai->codec; struct cs42l52_private *cs42l52 = snd_soc_codec_get_drvdata(codec); - int ret = 0; u8 iface = 0; switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { @@ -822,7 +821,7 @@ static int cs42l52_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) case SND_SOC_DAIFMT_NB_IF: break; default: - ret = -EINVAL; + return -EINVAL; } cs42l52->config.format = iface; snd_soc_write(codec, CS42L52_IFACE_CTL1, cs42l52->config.format); -- cgit v0.10.2 From 6d877e6b85691e0b2b22e90aeb9b86c3dafcfc6b Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Fri, 19 Oct 2012 15:01:46 -0400 Subject: xen/hvm: If we fail to fetch an HVM parameter print out which flag it is. Makes it easier to troubleshoot in the field. Acked-by: Ian Campbell [v1: Use macro per Ian's suggestion] Signed-off-by: Konrad Rzeszutek Wilk diff --git a/include/xen/hvm.h b/include/xen/hvm.h index b193fa2..13e43e4 100644 --- a/include/xen/hvm.h +++ b/include/xen/hvm.h @@ -5,6 +5,36 @@ #include #include +static const char *param_name(int op) +{ +#define PARAM(x) [HVM_PARAM_##x] = #x + static const char *const names[] = { + PARAM(CALLBACK_IRQ), + PARAM(STORE_PFN), + PARAM(STORE_EVTCHN), + PARAM(PAE_ENABLED), + PARAM(IOREQ_PFN), + PARAM(BUFIOREQ_PFN), + PARAM(TIMER_MODE), + PARAM(HPET_ENABLED), + PARAM(IDENT_PT), + PARAM(DM_DOMAIN), + PARAM(ACPI_S_STATE), + PARAM(VM86_TSS), + PARAM(VPT_ALIGN), + PARAM(CONSOLE_PFN), + PARAM(CONSOLE_EVTCHN), + }; +#undef PARAM + + if (op >= ARRAY_SIZE(names)) + return "unknown"; + + if (!names[op]) + return "reserved"; + + return names[op]; +} static inline int hvm_get_parameter(int idx, uint64_t *value) { struct xen_hvm_param xhv; @@ -14,8 +44,8 @@ static inline int hvm_get_parameter(int idx, uint64_t *value) xhv.index = idx; r = HYPERVISOR_hvm_op(HVMOP_get_param, &xhv); if (r < 0) { - printk(KERN_ERR "Cannot get hvm parameter %d: %d!\n", - idx, r); + printk(KERN_ERR "Cannot get hvm parameter %s (%d): %d!\n", + param_name(idx), idx, r); return r; } *value = xhv.value; -- cgit v0.10.2 From 772aebcefeff310f80e32b874988af0076cb799d Mon Sep 17 00:00:00 2001 From: Mojiong Qiu Date: Tue, 6 Nov 2012 16:08:15 +0800 Subject: xen/events: fix RCU warning, or Call idle notifier after irq_enter() exit_idle() should be called after irq_enter(), otherwise it throws: [ INFO: suspicious RCU usage. ] 3.6.5 #1 Not tainted ------------------------------- include/linux/rcupdate.h:725 rcu_read_lock() used illegally while idle! other info that might help us debug this: RCU used illegally from idle CPU! rcu_scheduler_active = 1, debug_locks = 1 RCU used illegally from extended quiescent state! 1 lock held by swapper/0/0: #0: (rcu_read_lock){......}, at: [] __atomic_notifier_call_chain+0x0/0x140 stack backtrace: Pid: 0, comm: swapper/0 Not tainted 3.6.5 #1 Call Trace: [] lockdep_rcu_suspicious+0xe2/0x130 [] __atomic_notifier_call_chain+0x12c/0x140 [] ? atomic_notifier_chain_unregister+0x90/0x90 [] ? trace_hardirqs_off+0xd/0x10 [] atomic_notifier_call_chain+0x16/0x20 [] exit_idle+0x43/0x50 [] xen_evtchn_do_upcall+0x25/0x50 [] xen_do_hypervisor_callback+0x1e/0x30 [] ? hypercall_page+0x3aa/0x1000 [] ? hypercall_page+0x3aa/0x1000 [] ? xen_safe_halt+0x10/0x20 [] ? default_idle+0xba/0x570 [] ? cpu_idle+0xdf/0x140 [] ? rest_init+0x135/0x144 [] ? csum_partial_copy_generic+0x16c/0x16c [] ? start_kernel+0x3db/0x3e8 [] ? repair_env_string+0x5a/0x5a [] ? x86_64_start_reservations+0x131/0x135 [] ? xen_start_kernel+0x465/0x46 Git commit 98ad1cc14a5c4fd658f9d72c6ba5c86dfd3ce0d5 Author: Frederic Weisbecker Date: Fri Oct 7 18:22:09 2011 +0200 x86: Call idle notifier after irq_enter() did this, but it missed the Xen code. Signed-off-by: Mojiong Qiu Cc: stable@vger.kernel.org # from 3.3 and newer. Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 912ac81..0be4df3 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -1395,10 +1395,10 @@ void xen_evtchn_do_upcall(struct pt_regs *regs) { struct pt_regs *old_regs = set_irq_regs(regs); + irq_enter(); #ifdef CONFIG_X86 exit_idle(); #endif - irq_enter(); __xen_evtchn_do_upcall(); -- cgit v0.10.2 From 6bf926ddd44ddc67edbeb28d4069f207f2c6e07e Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Tue, 6 Nov 2012 15:49:27 -0500 Subject: xen/generic: Disable fallback build on ARM. As there is no need for it (the fallback code is for older hypervisors and they only run under x86), and also b/c we get: drivers/xen/fallback.c: In function 'xen_event_channel_op_compat': drivers/xen/fallback.c:10:19: error: storage size of 'op' isn't known drivers/xen/fallback.c:15:2: error: implicit declaration of function '_hypercall1' [-Werror=implicit-function-declaration] drivers/xen/fallback.c:15:19: error: expected expression before 'int' drivers/xen/fallback.c:18:7: error: 'EVTCHNOP_close' undeclared (first use in this function) drivers/xen/fallback.c:18:7: note: each undeclared identifier is reported only once for each function it appears in .. and more [v1: Moved the enablement to be covered by CONFIG_X86 per Ian's suggestion] Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile index 46de6cd..7435470 100644 --- a/drivers/xen/Makefile +++ b/drivers/xen/Makefile @@ -2,7 +2,8 @@ ifneq ($(CONFIG_ARM),y) obj-y += manage.o balloon.o obj-$(CONFIG_HOTPLUG_CPU) += cpu_hotplug.o endif -obj-y += grant-table.o features.o events.o fallback.o +obj-$(CONFIG_X86) += fallback.o +obj-y += grant-table.o features.o events.o obj-y += xenbus/ nostackp := $(call cc-option, -fno-stack-protector) -- cgit v0.10.2 From 911dec0db4de6ccc544178a8ddaf9cec0a11d533 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Tue, 6 Nov 2012 17:06:52 -0500 Subject: xen/arm: Fix compile errors when drivers are compiled as modules. We end up with: ERROR: "HYPERVISOR_event_channel_op" [drivers/xen/xen-gntdev.ko] undefined! ERROR: "privcmd_call" [drivers/xen/xen-privcmd.ko] undefined! ERROR: "HYPERVISOR_grant_table_op" [drivers/net/xen-netback/xen-netback.ko] undefined! and this patch exports said function (which is implemented in hypercall.S). Acked-by: Stefano Stabellini Acked-by: Ian Campbell Signed-off-by: Konrad Rzeszutek Wilk diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c index 59bcb96..96d969d 100644 --- a/arch/arm/xen/enlighten.c +++ b/arch/arm/xen/enlighten.c @@ -166,3 +166,8 @@ void free_xenballooned_pages(int nr_pages, struct page **pages) *pages = NULL; } EXPORT_SYMBOL_GPL(free_xenballooned_pages); + +/* In the hypervisor.S file. */ +EXPORT_SYMBOL_GPL(HYPERVISOR_event_channel_op); +EXPORT_SYMBOL_GPL(HYPERVISOR_grant_table_op); +EXPORT_SYMBOL_GPL(privcmd_call); -- cgit v0.10.2 From 0133370f93eae5ed3c0f16d9da2b7add7dda6076 Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Fri, 2 Nov 2012 13:44:46 +0530 Subject: drivers: bus: ocp2scp: add pdata support ocp2scp was not having pdata support which makes *musb* fail for non-dt boot in OMAP platform. The pdata will have information about the devices that is connected to ocp2scp. ocp2scp driver will now make use of this information to create the devices that is attached to ocp2scp. This is needed to fix MUSB regression caused by commit c9e4412a (arm: omap: phy: remove unused functions from omap-phy-internal.c) Signed-off-by: Kishon Vijay Abraham I Acked-by: Felipe Balbi [tony@atomide.com: updated comments for regression info] Signed-off-by: Tony Lindgren diff --git a/drivers/bus/omap-ocp2scp.c b/drivers/bus/omap-ocp2scp.c index ff63560..0c48b0e 100644 --- a/drivers/bus/omap-ocp2scp.c +++ b/drivers/bus/omap-ocp2scp.c @@ -22,6 +22,26 @@ #include #include #include +#include + +/** + * _count_resources - count for the number of resources + * @res: struct resource * + * + * Count and return the number of resources populated for the device that is + * connected to ocp2scp. + */ +static unsigned _count_resources(struct resource *res) +{ + int cnt = 0; + + while (res->start != res->end) { + cnt++; + res++; + } + + return cnt; +} static int ocp2scp_remove_devices(struct device *dev, void *c) { @@ -34,20 +54,62 @@ static int ocp2scp_remove_devices(struct device *dev, void *c) static int __devinit omap_ocp2scp_probe(struct platform_device *pdev) { - int ret; - struct device_node *np = pdev->dev.of_node; + int ret; + unsigned res_cnt, i; + struct device_node *np = pdev->dev.of_node; + struct platform_device *pdev_child; + struct omap_ocp2scp_platform_data *pdata = pdev->dev.platform_data; + struct omap_ocp2scp_dev *dev; if (np) { ret = of_platform_populate(np, NULL, NULL, &pdev->dev); if (ret) { - dev_err(&pdev->dev, "failed to add resources for ocp2scp child\n"); + dev_err(&pdev->dev, + "failed to add resources for ocp2scp child\n"); goto err0; } + } else if (pdata) { + for (i = 0, dev = *pdata->devices; i < pdata->dev_cnt; i++, + dev++) { + res_cnt = _count_resources(dev->res); + + pdev_child = platform_device_alloc(dev->drv_name, + PLATFORM_DEVID_AUTO); + if (!pdev_child) { + dev_err(&pdev->dev, + "failed to allocate mem for ocp2scp child\n"); + goto err0; + } + + ret = platform_device_add_resources(pdev_child, + dev->res, res_cnt); + if (ret) { + dev_err(&pdev->dev, + "failed to add resources for ocp2scp child\n"); + goto err1; + } + + pdev_child->dev.parent = &pdev->dev; + + ret = platform_device_add(pdev_child); + if (ret) { + dev_err(&pdev->dev, + "failed to register ocp2scp child device\n"); + goto err1; + } + } + } else { + dev_err(&pdev->dev, "OCP2SCP initialized without plat data\n"); + return -EINVAL; } + pm_runtime_enable(&pdev->dev); return 0; +err1: + platform_device_put(pdev_child); + err0: device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices); diff --git a/include/linux/platform_data/omap_ocp2scp.h b/include/linux/platform_data/omap_ocp2scp.h new file mode 100644 index 0000000..5c6c393 --- /dev/null +++ b/include/linux/platform_data/omap_ocp2scp.h @@ -0,0 +1,31 @@ +/* + * omap_ocp2scp.h -- ocp2scp header file + * + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Author: Kishon Vijay Abraham I + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __DRIVERS_OMAP_OCP2SCP_H +#define __DRIVERS_OMAP_OCP2SCP_H + +struct omap_ocp2scp_dev { + const char *drv_name; + struct resource *res; +}; + +struct omap_ocp2scp_platform_data { + int dev_cnt; + struct omap_ocp2scp_dev **devices; +}; +#endif /* __DRIVERS_OMAP_OCP2SCP_H */ -- cgit v0.10.2 From 637874ddb94a78e07ca8ce76ca500c62c4583535 Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Sat, 27 Oct 2012 19:05:55 +0530 Subject: ARM: OMAP4: add _dev_attr_ to ocp2scp for representing usb_phy In order to reflect devices(usb_phy) attached to ocp2scp bus, ocp2scp is assigned a device attribute to represent the attached devices. This is needed to fix MUSB regression caused by commit c9e4412a (arm: omap: phy: remove unused functions from omap-phy-internal.c) Signed-off-by: Kishon Vijay Abraham I Cc: Benoit Cousson [tony@atomide.com: updated comments for regression info] Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 652d028..cf579b5 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include @@ -2681,6 +2682,32 @@ static struct omap_hwmod_class omap44xx_ocp2scp_hwmod_class = { .sysc = &omap44xx_ocp2scp_sysc, }; +/* ocp2scp dev_attr */ +static struct resource omap44xx_usb_phy_and_pll_addrs[] = { + { + .name = "usb_phy", + .start = 0x4a0ad080, + .end = 0x4a0ae000, + .flags = IORESOURCE_MEM, + }, + { + /* XXX: Remove this once control module driver is in place */ + .name = "ctrl_dev", + .start = 0x4a002300, + .end = 0x4a002303, + .flags = IORESOURCE_MEM, + }, + { } +}; + +static struct omap_ocp2scp_dev ocp2scp_dev_attr[] = { + { + .drv_name = "omap-usb2", + .res = omap44xx_usb_phy_and_pll_addrs, + }, + { } +}; + /* ocp2scp_usb_phy */ static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = { .name = "ocp2scp_usb_phy", @@ -2694,6 +2721,7 @@ static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = { .modulemode = MODULEMODE_HWCTRL, }, }, + .dev_attr = ocp2scp_dev_attr, }; /* -- cgit v0.10.2 From 459bc971eba0fe84b3fe857cf0a71c5fd102f06b Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Sat, 27 Oct 2012 19:05:56 +0530 Subject: ARM: OMAP: ocp2scp: create omap device for ocp2scp Platfrom device for ocp2scp is created using omap_device_build in devices file. This is used for both omap4(musb) and omap5(dwc3). This is needed to fix MUSB regression caused by commit c9e4412a (arm: omap: phy: remove unused functions from omap-phy-internal.c) Signed-off-by: Kishon Vijay Abraham I [tony@atomide.com: updated comments for regression info] Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c index cba60e0..c72b5a7 100644 --- a/arch/arm/mach-omap2/devices.c +++ b/arch/arm/mach-omap2/devices.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -613,6 +614,83 @@ static void omap_init_vout(void) static inline void omap_init_vout(void) {} #endif +#if defined(CONFIG_OMAP_OCP2SCP) || defined(CONFIG_OMAP_OCP2SCP_MODULE) +static int count_ocp2scp_devices(struct omap_ocp2scp_dev *ocp2scp_dev) +{ + int cnt = 0; + + while (ocp2scp_dev->drv_name != NULL) { + cnt++; + ocp2scp_dev++; + } + + return cnt; +} + +static void omap_init_ocp2scp(void) +{ + struct omap_hwmod *oh; + struct platform_device *pdev; + int bus_id = -1, dev_cnt = 0, i; + struct omap_ocp2scp_dev *ocp2scp_dev; + const char *oh_name, *name; + struct omap_ocp2scp_platform_data *pdata; + + if (!cpu_is_omap44xx()) + return; + + oh_name = "ocp2scp_usb_phy"; + name = "omap-ocp2scp"; + + oh = omap_hwmod_lookup(oh_name); + if (!oh) { + pr_err("%s: could not find omap_hwmod for %s\n", __func__, + oh_name); + return; + } + + pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + pr_err("%s: No memory for ocp2scp pdata\n", __func__); + return; + } + + ocp2scp_dev = oh->dev_attr; + dev_cnt = count_ocp2scp_devices(ocp2scp_dev); + + if (!dev_cnt) { + pr_err("%s: No devices connected to ocp2scp\n", __func__); + kfree(pdata); + return; + } + + pdata->devices = kzalloc(sizeof(struct omap_ocp2scp_dev *) + * dev_cnt, GFP_KERNEL); + if (!pdata->devices) { + pr_err("%s: No memory for ocp2scp pdata devices\n", __func__); + kfree(pdata); + return; + } + + for (i = 0; i < dev_cnt; i++, ocp2scp_dev++) + pdata->devices[i] = ocp2scp_dev; + + pdata->dev_cnt = dev_cnt; + + pdev = omap_device_build(name, bus_id, oh, pdata, sizeof(*pdata), NULL, + 0, false); + if (IS_ERR(pdev)) { + pr_err("Could not build omap_device for %s %s\n", + name, oh_name); + kfree(pdata->devices); + kfree(pdata); + return; + } +} +#else +static inline void omap_init_ocp2scp(void) { } +#endif + /*-------------------------------------------------------------------------*/ static int __init omap2_init_devices(void) @@ -640,6 +718,7 @@ static int __init omap2_init_devices(void) omap_init_sham(); omap_init_aes(); omap_init_vout(); + omap_init_ocp2scp(); return 0; } -- cgit v0.10.2 From d1a3c98d50731c627909029bb653a0557946f0f5 Mon Sep 17 00:00:00 2001 From: Adrian Knoth Date: Wed, 7 Nov 2012 18:00:09 +0100 Subject: ALSA: hdspm - Fix sync check reporting on RME RayDAT The RayDAT reports the sync status of its inputs in consecutive bit positions, so all we do in hdspm_s1_sync_check is to iterate over idx: status = hdspm_read(hdspm, HDSPM_RD_STATUS_1); lock = (status & (0x1<private_value: HDSPM_SYNC_CHECK("WC SyncCheck", 0), HDSPM_SYNC_CHECK("AES SyncCheck", 1), HDSPM_SYNC_CHECK("SPDIF SyncCheck", 2), HDSPM_SYNC_CHECK("ADAT1 SyncCheck", 3), HDSPM_SYNC_CHECK("ADAT2 SyncCheck", 4), HDSPM_SYNC_CHECK("ADAT3 SyncCheck", 5), HDSPM_SYNC_CHECK("ADAT4 SyncCheck", 6), HDSPM_SYNC_CHECK("TCO SyncCheck", 7), HDSPM_SYNC_CHECK("SYNC IN SyncCheck", 8), The patch corrects the indicated sync flags by passing the proper index value to hdspm_s1_sync_check(). Signed-off-by: Adrian Knoth Signed-off-by: Takashi Iwai diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index 9a8d5ce..748e36c 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -3979,7 +3979,8 @@ static int snd_hdspm_get_sync_check(struct snd_kcontrol *kcontrol, case 8: /* SYNC IN */ val = hdspm_sync_in_sync_check(hdspm); break; default: - val = hdspm_s1_sync_check(hdspm, ucontrol->id.index-1); + val = hdspm_s1_sync_check(hdspm, + kcontrol->private_value-1); } break; -- cgit v0.10.2 From d676188e44680c2f2eb114a24b3b32e56165f079 Mon Sep 17 00:00:00 2001 From: Seungwon Jeon Date: Fri, 28 Sep 2012 14:21:59 +0900 Subject: mmc: dw_mmc: convert the variable type of irq Even though platform_get_irq returns error, 'host->irq' always has an unsigned value. Less-than-zero comparison of an unsigned value is never true. Type of 'unsigned int' will be changed for 'int'. Signed-off-by: Seungwon Jeon Acked-by: Will Newton Signed-off-by: Chris Ball diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h index 7c6a113..3141676 100644 --- a/include/linux/mmc/dw_mmc.h +++ b/include/linux/mmc/dw_mmc.h @@ -186,7 +186,7 @@ struct dw_mci { struct regulator *vmmc; /* Power regulator */ unsigned long irq_flags; /* IRQ flags */ - unsigned int irq; + int irq; }; /* DMA ops for Internal/External DMAC interface */ -- cgit v0.10.2 From 00956ea360c3825ac9fd337758e07e193f66d1d9 Mon Sep 17 00:00:00 2001 From: Seungwon Jeon Date: Fri, 28 Sep 2012 19:13:11 +0900 Subject: mmc: dw_mmc: remove _dev_info compile warning This patch removes the following warning. drivers/mmc/host/dw_mmc.c:1976: warning: passing argument 1 of '_dev_info' from incompatible pointer type Signed-off-by: Seungwon Jeon Acked-by: Will Newton Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index c2828f3..250aa18 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -1968,7 +1968,7 @@ static void dw_mci_init_dma(struct dw_mci *host) /* Determine which DMA interface to use */ #ifdef CONFIG_MMC_DW_IDMAC host->dma_ops = &dw_mci_idmac_ops; - dev_info(&host->dev, "Using internal DMA controller.\n"); + dev_info(host->dev, "Using internal DMA controller.\n"); #endif if (!host->dma_ops) -- cgit v0.10.2 From 63ef5d8c28b2a944f104d854254941e7375c85a3 Mon Sep 17 00:00:00 2001 From: Jerry Huang Date: Thu, 25 Oct 2012 13:47:19 +0800 Subject: mmc: sdhci-of-esdhc: disable CMD23 for some Freescale SoCs CMD23 causes lots of errors in kernel on some freescale SoCs (P1020, P1021, P1022, P1024, P1025 and P4080) when MMC card used, which is because these controllers does not support CMD23, even on the SoCs which declares CMD23 is supported. Therefore, we'll not use CMD23. Signed-off-by: Jerry Huang Signed-off-by: Shaohui Xie Acked-by: Anton Vorontsov Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index ae5fcbf..63d219f 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -169,6 +169,16 @@ static void esdhc_of_resume(struct sdhci_host *host) } #endif +static void esdhc_of_platform_init(struct sdhci_host *host) +{ + u32 vvn; + + vvn = in_be32(host->ioaddr + SDHCI_SLOT_INT_STATUS); + vvn = (vvn & SDHCI_VENDOR_VER_MASK) >> SDHCI_VENDOR_VER_SHIFT; + if (vvn == VENDOR_V_22) + host->quirks2 |= SDHCI_QUIRK2_HOST_NO_CMD23; +} + static struct sdhci_ops sdhci_esdhc_ops = { .read_l = esdhc_readl, .read_w = esdhc_readw, @@ -180,6 +190,7 @@ static struct sdhci_ops sdhci_esdhc_ops = { .enable_dma = esdhc_of_enable_dma, .get_max_clock = esdhc_of_get_max_clock, .get_min_clock = esdhc_of_get_min_clock, + .platform_init = esdhc_of_platform_init, #ifdef CONFIG_PM .platform_suspend = esdhc_of_suspend, .platform_resume = esdhc_of_resume, diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c index 65551a9..2716445 100644 --- a/drivers/mmc/host/sdhci-pltfm.c +++ b/drivers/mmc/host/sdhci-pltfm.c @@ -150,6 +150,13 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev, goto err_remap; } + /* + * Some platforms need to probe the controller to be able to + * determine which caps should be used. + */ + if (host->ops && host->ops->platform_init) + host->ops->platform_init(host); + platform_set_drvdata(pdev, host); return host; diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 7922adb..f05a377 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2837,6 +2837,9 @@ int sdhci_add_host(struct sdhci_host *host) if (!(host->quirks & SDHCI_QUIRK_FORCE_1_BIT_DATA)) mmc->caps |= MMC_CAP_4_BIT_DATA; + if (host->quirks2 & SDHCI_QUIRK2_HOST_NO_CMD23) + mmc->caps &= ~MMC_CAP_CMD23; + if (caps[0] & SDHCI_CAN_DO_HISPD) mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED; diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 97653ea..71a4a7e 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -278,6 +278,7 @@ struct sdhci_ops { void (*hw_reset)(struct sdhci_host *host); void (*platform_suspend)(struct sdhci_host *host); void (*platform_resume)(struct sdhci_host *host); + void (*platform_init)(struct sdhci_host *host); }; #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h index fa8529a..1edcb4d 100644 --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -91,6 +91,7 @@ struct sdhci_host { unsigned int quirks2; /* More deviations from spec. */ #define SDHCI_QUIRK2_HOST_OFF_CARD_ON (1<<0) +#define SDHCI_QUIRK2_HOST_NO_CMD23 (1<<1) int irq; /* Device IRQ */ void __iomem *ioaddr; /* Mapped address */ -- cgit v0.10.2 From 2da1d7f2948900cd50d38643db39f790edb3cc96 Mon Sep 17 00:00:00 2001 From: Yuvaraj CD Date: Mon, 8 Oct 2012 14:29:51 +0530 Subject: mmc: dw_mmc: enable controller interrupt before calling mmc_start_host As mmc_start_host is getting called before enabling the dw_mmc controller interrupt, there is a problem of missing the SDMMC_INT_CMD_DONE for the very first command sent by the sdio_reset. This problem occurs only when we disable MMC debugging i.e, MMC_DEBUG=n. This patch enables the dw_mmc controller interrupt before mmc_start_host. Signed-off-by: Yuvaraj CD Reviewed-by: Girish K S Acked-by: Will Newton Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 250aa18..4b2bedc 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -2228,6 +2228,21 @@ int dw_mci_probe(struct dw_mci *host) else host->num_slots = ((mci_readl(host, HCON) >> 1) & 0x1F) + 1; + /* + * Enable interrupts for command done, data over, data empty, card det, + * receive ready and error such as transmit, receive timeout, crc error + */ + mci_writel(host, RINTSTS, 0xFFFFFFFF); + mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER | + SDMMC_INT_TXDR | SDMMC_INT_RXDR | + DW_MCI_ERROR_FLAGS | SDMMC_INT_CD); + mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE); /* Enable mci interrupt */ + + dev_info(host->dev, "DW MMC controller at irq %d, " + "%d bit host data width, " + "%u deep fifo\n", + host->irq, width, fifo_size); + /* We need at least one slot to succeed */ for (i = 0; i < host->num_slots; i++) { ret = dw_mci_init_slot(host, i); @@ -2257,20 +2272,6 @@ int dw_mci_probe(struct dw_mci *host) else host->data_offset = DATA_240A_OFFSET; - /* - * Enable interrupts for command done, data over, data empty, card det, - * receive ready and error such as transmit, receive timeout, crc error - */ - mci_writel(host, RINTSTS, 0xFFFFFFFF); - mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER | - SDMMC_INT_TXDR | SDMMC_INT_RXDR | - DW_MCI_ERROR_FLAGS | SDMMC_INT_CD); - mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE); /* Enable mci interrupt */ - - dev_info(host->dev, "DW MMC controller at irq %d, " - "%d bit host data width, " - "%u deep fifo\n", - host->irq, width, fifo_size); if (host->quirks & DW_MCI_QUIRK_IDMAC_DTO) dev_info(host->dev, "Internal DMAC interrupt fix enabled.\n"); -- cgit v0.10.2 From cb27a843de9e3a0a2e4b7e631da4679d38f49cee Mon Sep 17 00:00:00 2001 From: James Hogan Date: Tue, 16 Oct 2012 09:43:08 +0100 Subject: mmc: dw_mmc: fix multiple drv_data NULL dereferences 800d78bfccb3d ("mmc: dw_mmc: add support for implementation specific callbacks") -- merged in v3.7-rc1 -- introduced multiple NULL pointer dereferences when the default dw_mci_pltfm_probe() is used, as it sets host->drv_data to NULL, and that's only checked against NULL in 1 out of the 7 cases where it is dereferenced. Signed-off-by: James Hogan Acked-by: Jaehoon Chung Acked-by: Will Newton Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c index c960ca7..e595721 100644 --- a/drivers/mmc/host/dw_mmc-pltfm.c +++ b/drivers/mmc/host/dw_mmc-pltfm.c @@ -50,8 +50,8 @@ int dw_mci_pltfm_register(struct platform_device *pdev, if (!host->regs) return -ENOMEM; - if (host->drv_data->init) { - ret = host->drv_data->init(host); + if (drv_data && drv_data->init) { + ret = drv_data->init(host); if (ret) return ret; } diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 4b2bedc..b087f66 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -232,6 +232,7 @@ static u32 dw_mci_prepare_command(struct mmc_host *mmc, struct mmc_command *cmd) { struct mmc_data *data; struct dw_mci_slot *slot = mmc_priv(mmc); + struct dw_mci_drv_data *drv_data = slot->host->drv_data; u32 cmdr; cmd->error = -EINPROGRESS; @@ -261,8 +262,8 @@ static u32 dw_mci_prepare_command(struct mmc_host *mmc, struct mmc_command *cmd) cmdr |= SDMMC_CMD_DAT_WR; } - if (slot->host->drv_data->prepare_command) - slot->host->drv_data->prepare_command(slot->host, &cmdr); + if (drv_data && drv_data->prepare_command) + drv_data->prepare_command(slot->host, &cmdr); return cmdr; } @@ -772,6 +773,7 @@ static void dw_mci_request(struct mmc_host *mmc, struct mmc_request *mrq) static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) { struct dw_mci_slot *slot = mmc_priv(mmc); + struct dw_mci_drv_data *drv_data = slot->host->drv_data; u32 regs; /* set default 1 bit mode */ @@ -807,8 +809,8 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) slot->clock = ios->clock; } - if (slot->host->drv_data->set_ios) - slot->host->drv_data->set_ios(slot->host, ios); + if (drv_data && drv_data->set_ios) + drv_data->set_ios(slot->host, ios); switch (ios->power_mode) { case MMC_POWER_UP: @@ -1815,6 +1817,7 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id) { struct mmc_host *mmc; struct dw_mci_slot *slot; + struct dw_mci_drv_data *drv_data = host->drv_data; int ctrl_id, ret; u8 bus_width; @@ -1854,8 +1857,8 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id) } else { ctrl_id = to_platform_device(host->dev)->id; } - if (host->drv_data && host->drv_data->caps) - mmc->caps |= host->drv_data->caps[ctrl_id]; + if (drv_data && drv_data->caps) + mmc->caps |= drv_data->caps[ctrl_id]; if (host->pdata->caps2) mmc->caps2 = host->pdata->caps2; @@ -1867,10 +1870,10 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id) else bus_width = 1; - if (host->drv_data->setup_bus) { + if (drv_data && drv_data->setup_bus) { struct device_node *slot_np; slot_np = dw_mci_of_find_slot_node(host->dev, slot->id); - ret = host->drv_data->setup_bus(host, slot_np, bus_width); + ret = drv_data->setup_bus(host, slot_np, bus_width); if (ret) goto err_setup_bus; } @@ -2035,6 +2038,7 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) struct dw_mci_board *pdata; struct device *dev = host->dev; struct device_node *np = dev->of_node; + struct dw_mci_drv_data *drv_data = host->drv_data; int idx, ret; pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); @@ -2062,8 +2066,8 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) of_property_read_u32(np, "card-detect-delay", &pdata->detect_delay_ms); - if (host->drv_data->parse_dt) { - ret = host->drv_data->parse_dt(host); + if (drv_data && drv_data->parse_dt) { + ret = drv_data->parse_dt(host); if (ret) return ERR_PTR(ret); } @@ -2080,6 +2084,7 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) int dw_mci_probe(struct dw_mci *host) { + struct dw_mci_drv_data *drv_data = host->drv_data; int width, i, ret = 0; u32 fifo_size; int init_slots = 0; @@ -2127,8 +2132,8 @@ int dw_mci_probe(struct dw_mci *host) else host->bus_hz = clk_get_rate(host->ciu_clk); - if (host->drv_data->setup_clock) { - ret = host->drv_data->setup_clock(host); + if (drv_data && drv_data->setup_clock) { + ret = drv_data->setup_clock(host); if (ret) { dev_err(host->dev, "implementation specific clock setup failed\n"); -- cgit v0.10.2 From 9d1f02864408c20dbbfaa661231c7afb5a8fc028 Mon Sep 17 00:00:00 2001 From: Balaji T K Date: Mon, 15 Oct 2012 21:35:07 +0530 Subject: mmc: omap_hsmmc: fix host reference after mmc_free_host struct omap_hsmmc_host *host should not be accessed after mmc_free_host(). Reorder mmc_free_host() after iounmap(host->base). Signed-off-by: Balaji T K Signed-off-by: Venkatraman S Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 54bfd0c..d5057415 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -2009,8 +2009,8 @@ static int __devexit omap_hsmmc_remove(struct platform_device *pdev) clk_put(host->dbclk); } - mmc_free_host(host->mmc); iounmap(host->base); + mmc_free_host(host->mmc); omap_hsmmc_gpio_free(pdev->dev.platform_data); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -- cgit v0.10.2 From 9ea28ecbeb090159a3383ff60b29dee00c489774 Mon Sep 17 00:00:00 2001 From: Balaji T K Date: Mon, 15 Oct 2012 21:35:08 +0530 Subject: mmc: omap_hsmmc: fix NULL pointer dereference for dt boot dev->platform_data is NULL in case of device tree boot, instead use the saved version in struct omap_hsmmc_host. Signed-off-by: Balaji T K Signed-off-by: Venkatraman S Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index d5057415..fedd258 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -178,7 +178,8 @@ struct omap_hsmmc_host { static int omap_hsmmc_card_detect(struct device *dev, int slot) { - struct omap_mmc_platform_data *mmc = dev->platform_data; + struct omap_hsmmc_host *host = dev_get_drvdata(dev); + struct omap_mmc_platform_data *mmc = host->pdata; /* NOTE: assumes card detect signal is active-low */ return !gpio_get_value_cansleep(mmc->slots[0].switch_pin); @@ -186,7 +187,8 @@ static int omap_hsmmc_card_detect(struct device *dev, int slot) static int omap_hsmmc_get_wp(struct device *dev, int slot) { - struct omap_mmc_platform_data *mmc = dev->platform_data; + struct omap_hsmmc_host *host = dev_get_drvdata(dev); + struct omap_mmc_platform_data *mmc = host->pdata; /* NOTE: assumes write protect signal is active-high */ return gpio_get_value_cansleep(mmc->slots[0].gpio_wp); @@ -194,7 +196,8 @@ static int omap_hsmmc_get_wp(struct device *dev, int slot) static int omap_hsmmc_get_cover_state(struct device *dev, int slot) { - struct omap_mmc_platform_data *mmc = dev->platform_data; + struct omap_hsmmc_host *host = dev_get_drvdata(dev); + struct omap_mmc_platform_data *mmc = host->pdata; /* NOTE: assumes card detect signal is active-low */ return !gpio_get_value_cansleep(mmc->slots[0].switch_pin); @@ -204,7 +207,8 @@ static int omap_hsmmc_get_cover_state(struct device *dev, int slot) static int omap_hsmmc_suspend_cdirq(struct device *dev, int slot) { - struct omap_mmc_platform_data *mmc = dev->platform_data; + struct omap_hsmmc_host *host = dev_get_drvdata(dev); + struct omap_mmc_platform_data *mmc = host->pdata; disable_irq(mmc->slots[0].card_detect_irq); return 0; @@ -212,7 +216,8 @@ static int omap_hsmmc_suspend_cdirq(struct device *dev, int slot) static int omap_hsmmc_resume_cdirq(struct device *dev, int slot) { - struct omap_mmc_platform_data *mmc = dev->platform_data; + struct omap_hsmmc_host *host = dev_get_drvdata(dev); + struct omap_mmc_platform_data *mmc = host->pdata; enable_irq(mmc->slots[0].card_detect_irq); return 0; @@ -2009,9 +2014,9 @@ static int __devexit omap_hsmmc_remove(struct platform_device *pdev) clk_put(host->dbclk); } + omap_hsmmc_gpio_free(host->pdata); iounmap(host->base); mmc_free_host(host->mmc); - omap_hsmmc_gpio_free(pdev->dev.platform_data); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res) -- cgit v0.10.2 From 6eb30adf962983754f1a05eb79c2a9260fb7f5a6 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Tue, 9 Oct 2012 16:26:05 -0300 Subject: mmc: mxcmmc: Fix MODULE_ALIAS The correct name for the driver is "mxc-mmc". Signed-off-by: Fabio Estevam Acked-by: Sascha Hauer Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c index 565c2e4..6290b7f 100644 --- a/drivers/mmc/host/mxcmmc.c +++ b/drivers/mmc/host/mxcmmc.c @@ -1134,4 +1134,4 @@ module_platform_driver(mxcmci_driver); MODULE_DESCRIPTION("i.MX Multimedia Card Interface Driver"); MODULE_AUTHOR("Sascha Hauer, Pengutronix"); MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:imx-mmc"); +MODULE_ALIAS("platform:mxc-mmc"); -- cgit v0.10.2 From 90b3e6c53b006d55952183d8ada2ce3ebc0dce06 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Thu, 18 Oct 2012 09:54:31 +0300 Subject: mmc: sdhci-pci: fix 'Invalid iomem size' error message condition The SDHCI standard defines a 256 byte register set but a device that specifies a larger iomem region is not an error. Alter the message condition accordingly. Signed-off-by: Adrian Hunter Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index 4bb74b0..04936f3 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -1196,7 +1196,7 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot( return ERR_PTR(-ENODEV); } - if (pci_resource_len(pdev, bar) != 0x100) { + if (pci_resource_len(pdev, bar) < 0x100) { dev_err(&pdev->dev, "Invalid iomem size. You may " "experience problems.\n"); } -- cgit v0.10.2 From a0d28ba01ebd048b4ba418142b37f5cf80e6d156 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Tue, 23 Oct 2012 14:08:52 +0200 Subject: mmc: sh_mmcif: fix use after free A recent commit "mmc: sh_mmcif: fix clock management" has introduced a use after free bug in sh_mmcif.c: in sh_mmcif_remove() the call to mmc_free_host() frees private driver data, therefore using it afterwards is a bug. Revert that hunk. Signed-off-by: Guennadi Liakhovetski Cc: stable@vger.kernel.org [3.6] Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index 11d2bc3..d25bc97 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -1466,9 +1466,9 @@ static int __devexit sh_mmcif_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); + clk_disable(host->hclk); mmc_free_host(host->mmc); pm_runtime_put_sync(&pdev->dev); - clk_disable(host->hclk); pm_runtime_disable(&pdev->dev); return 0; -- cgit v0.10.2 From ee3298a2b6832bcfeec040dabf19632b704d826a Mon Sep 17 00:00:00 2001 From: Russell King - ARM Linux Date: Mon, 29 Oct 2012 21:43:07 +0000 Subject: mmc: fix sdhci-dove probe/removal 1. Never ever publish a device in the system before it has been setup to a usable state. 2. Unregister the device _BEFORE_ taking away any resources it may be using. 3. Don't check clks against NULL. Signed-off-by: Russell King Tested-by: Sebastian Hesselbarth Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-dove.c b/drivers/mmc/host/sdhci-dove.c index 90140eb..8fd50a2 100644 --- a/drivers/mmc/host/sdhci-dove.c +++ b/drivers/mmc/host/sdhci-dove.c @@ -19,6 +19,7 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +#include #include #include #include @@ -84,30 +85,32 @@ static int __devinit sdhci_dove_probe(struct platform_device *pdev) struct sdhci_dove_priv *priv; int ret; - ret = sdhci_pltfm_register(pdev, &sdhci_dove_pdata); - if (ret) - goto sdhci_dove_register_fail; - priv = devm_kzalloc(&pdev->dev, sizeof(struct sdhci_dove_priv), GFP_KERNEL); if (!priv) { dev_err(&pdev->dev, "unable to allocate private data"); - ret = -ENOMEM; - goto sdhci_dove_allocate_fail; + return -ENOMEM; } + priv->clk = clk_get(&pdev->dev, NULL); + if (!IS_ERR(priv->clk)) + clk_prepare_enable(priv->clk); + + ret = sdhci_pltfm_register(pdev, &sdhci_dove_pdata); + if (ret) + goto sdhci_dove_register_fail; + host = platform_get_drvdata(pdev); pltfm_host = sdhci_priv(host); pltfm_host->priv = priv; - priv->clk = clk_get(&pdev->dev, NULL); - if (!IS_ERR(priv->clk)) - clk_prepare_enable(priv->clk); return 0; -sdhci_dove_allocate_fail: - sdhci_pltfm_unregister(pdev); sdhci_dove_register_fail: + if (!IS_ERR(priv->clk)) { + clk_disable_unprepare(priv->clk); + clk_put(priv->clk); + } return ret; } @@ -117,14 +120,13 @@ static int __devexit sdhci_dove_remove(struct platform_device *pdev) struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct sdhci_dove_priv *priv = pltfm_host->priv; - if (priv->clk) { - if (!IS_ERR(priv->clk)) { - clk_disable_unprepare(priv->clk); - clk_put(priv->clk); - } - devm_kfree(&pdev->dev, priv->clk); + sdhci_pltfm_unregister(pdev); + + if (!IS_ERR(priv->clk)) { + clk_disable_unprepare(priv->clk); + clk_put(priv->clk); } - return sdhci_pltfm_unregister(pdev); + return 0; } static const struct of_device_id sdhci_dove_of_match_table[] __devinitdata = { -- cgit v0.10.2 From 657d59823c095e8f03e2744d765f53700331ff8f Mon Sep 17 00:00:00 2001 From: Kevin Liu Date: Wed, 17 Oct 2012 19:04:44 +0800 Subject: mmc: sdhci: fix IS_ERR() checking of regulator_get() There are two problems here: The check for vmmc was printing an unnecessary pr_info() when host->vmmc is NULL. The intent of the check for vqmmc was to only remove UHS if we have a regulator that doesn't support the required voltage, but since IS_ERR() doesn't catch NULL, we were actually removing UHS modes if vqmmc isn't present at all -- since it isn't present for most users, this breaks UHS for them. This patch fixes that UHS regression in 3.7-rc1. Signed-off-by: Kevin Liu Signed-off-by: Bin Wang Reviewed-by: Philip Rakity Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index f05a377..949e18c 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2849,9 +2849,12 @@ int sdhci_add_host(struct sdhci_host *host) /* If vqmmc regulator and no 1.8V signalling, then there's no UHS */ host->vqmmc = regulator_get(mmc_dev(mmc), "vqmmc"); - if (IS_ERR(host->vqmmc)) { - pr_info("%s: no vqmmc regulator found\n", mmc_hostname(mmc)); - host->vqmmc = NULL; + if (IS_ERR_OR_NULL(host->vqmmc)) { + if (PTR_ERR(host->vqmmc) < 0) { + pr_info("%s: no vqmmc regulator found\n", + mmc_hostname(mmc)); + host->vqmmc = NULL; + } } else if (regulator_is_supported_voltage(host->vqmmc, 1800000, 1800000)) regulator_enable(host->vqmmc); @@ -2907,9 +2910,12 @@ int sdhci_add_host(struct sdhci_host *host) ocr_avail = 0; host->vmmc = regulator_get(mmc_dev(mmc), "vmmc"); - if (IS_ERR(host->vmmc)) { - pr_info("%s: no vmmc regulator found\n", mmc_hostname(mmc)); - host->vmmc = NULL; + if (IS_ERR_OR_NULL(host->vmmc)) { + if (PTR_ERR(host->vmmc) < 0) { + pr_info("%s: no vmmc regulator found\n", + mmc_hostname(mmc)); + host->vmmc = NULL; + } } else regulator_enable(host->vmmc); -- cgit v0.10.2 From 14efd957209461bbdf285bf0d67e931955d04a4c Mon Sep 17 00:00:00 2001 From: Chris Ball Date: Mon, 5 Nov 2012 14:29:49 -0500 Subject: mmc: sdhci: fix NULL dereference in sdhci_request() tuning Commit 473b095a72a9 ("mmc: sdhci: fix incorrect command used in tuning") introduced a NULL dereference at resume-time if an SD 3.0 host controller raises the SDHCI_NEEDS_TUNING flag while no card is inserted. Seen on an OLPC XO-4 with sdhci-pxav3, but presumably affects other controllers too. Signed-off-by: Chris Ball Cc: stable [3.3+] diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 949e18c..c7851c0 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1315,16 +1315,19 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq) */ if ((host->flags & SDHCI_NEEDS_RETUNING) && !(present_state & (SDHCI_DOING_WRITE | SDHCI_DOING_READ))) { - /* eMMC uses cmd21 while sd and sdio use cmd19 */ - tuning_opcode = mmc->card->type == MMC_TYPE_MMC ? - MMC_SEND_TUNING_BLOCK_HS200 : - MMC_SEND_TUNING_BLOCK; - spin_unlock_irqrestore(&host->lock, flags); - sdhci_execute_tuning(mmc, tuning_opcode); - spin_lock_irqsave(&host->lock, flags); - - /* Restore original mmc_request structure */ - host->mrq = mrq; + if (mmc->card) { + /* eMMC uses cmd21 but sd and sdio use cmd19 */ + tuning_opcode = + mmc->card->type == MMC_TYPE_MMC ? + MMC_SEND_TUNING_BLOCK_HS200 : + MMC_SEND_TUNING_BLOCK; + spin_unlock_irqrestore(&host->lock, flags); + sdhci_execute_tuning(mmc, tuning_opcode); + spin_lock_irqsave(&host->lock, flags); + + /* Restore original mmc_request structure */ + host->mrq = mrq; + } } if (mrq->sbc && !(host->flags & SDHCI_AUTO_CMD23)) -- cgit v0.10.2 From 517cb9f1bb0afd38bebe9b0af1b524b8a65afdb4 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 6 Nov 2012 22:55:30 +0100 Subject: mmc: dw_mmc: fix modular build for exynos back-end The MODULE_DEVICE_TABLE entry for dw_mci_exynos_match was incorrectly copied from the platform back-end, which causes this error when building the driver as a loadable module: drivers/mmc/host/dw_mmc-exynos.c: At top level: drivers/mmc/host/dw_mmc-exynos.c:226:34: error: '__mod_of_device_table' aliased to undefined symbol 'dw_mci_pltfm_match' This patch fixes the problem by just using the correct string. Signed-off-by: Arnd Bergmann Cc: Thomas Abraham Cc: Will Newton Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c index 660bbc5..0147ac3a 100644 --- a/drivers/mmc/host/dw_mmc-exynos.c +++ b/drivers/mmc/host/dw_mmc-exynos.c @@ -223,7 +223,7 @@ static const struct of_device_id dw_mci_exynos_match[] = { .data = (void *)&exynos5250_drv_data, }, {}, }; -MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match); +MODULE_DEVICE_TABLE(of, dw_mci_exynos_match); int dw_mci_exynos_probe(struct platform_device *pdev) { -- cgit v0.10.2 From 8e2b36ea6e3abc613cbbdb41692fbd2f9ee18996 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 6 Nov 2012 22:55:31 +0100 Subject: mmc: dw_mmc: constify dw_mci_idmac_ops in exynos back-end The of_device_id match data is now marked as const and must not be modified. This changes the dw_mmc to mark all pointers passing the dw_mci_drv_data or dw_mci_dma_ops structures as const, and also marks the static definitions as const. drivers/mmc/host/dw_mmc-exynos.c: In function 'dw_mci_exynos_probe': drivers/mmc/host/dw_mmc-exynos.c:234:11: warning: assignment discards 'const' qualifier from pointer target type [enabled by default] Signed-off-by: Arnd Bergmann Cc: Thomas Abraham Cc: Will Newton Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c index 0147ac3a..4d50da6 100644 --- a/drivers/mmc/host/dw_mmc-exynos.c +++ b/drivers/mmc/host/dw_mmc-exynos.c @@ -208,7 +208,7 @@ static unsigned long exynos5250_dwmmc_caps[4] = { MMC_CAP_CMD23, }; -static struct dw_mci_drv_data exynos5250_drv_data = { +static const struct dw_mci_drv_data exynos5250_drv_data = { .caps = exynos5250_dwmmc_caps, .init = dw_mci_exynos_priv_init, .setup_clock = dw_mci_exynos_setup_clock, @@ -220,14 +220,14 @@ static struct dw_mci_drv_data exynos5250_drv_data = { static const struct of_device_id dw_mci_exynos_match[] = { { .compatible = "samsung,exynos5250-dw-mshc", - .data = (void *)&exynos5250_drv_data, }, + .data = &exynos5250_drv_data, }, {}, }; MODULE_DEVICE_TABLE(of, dw_mci_exynos_match); int dw_mci_exynos_probe(struct platform_device *pdev) { - struct dw_mci_drv_data *drv_data; + const struct dw_mci_drv_data *drv_data; const struct of_device_id *match; match = of_match_node(dw_mci_exynos_match, pdev->dev.of_node); diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c index e595721..917936b 100644 --- a/drivers/mmc/host/dw_mmc-pltfm.c +++ b/drivers/mmc/host/dw_mmc-pltfm.c @@ -24,7 +24,7 @@ #include "dw_mmc.h" int dw_mci_pltfm_register(struct platform_device *pdev, - struct dw_mci_drv_data *drv_data) + const struct dw_mci_drv_data *drv_data) { struct dw_mci *host; struct resource *regs; diff --git a/drivers/mmc/host/dw_mmc-pltfm.h b/drivers/mmc/host/dw_mmc-pltfm.h index 301f245..2ac37b8 100644 --- a/drivers/mmc/host/dw_mmc-pltfm.h +++ b/drivers/mmc/host/dw_mmc-pltfm.h @@ -13,7 +13,7 @@ #define _DW_MMC_PLTFM_H_ extern int dw_mci_pltfm_register(struct platform_device *pdev, - struct dw_mci_drv_data *drv_data); + const struct dw_mci_drv_data *drv_data); extern int __devexit dw_mci_pltfm_remove(struct platform_device *pdev); extern const struct dev_pm_ops dw_mci_pltfm_pmops; diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index b087f66..c0667c8 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -435,7 +435,7 @@ static int dw_mci_idmac_init(struct dw_mci *host) return 0; } -static struct dw_mci_dma_ops dw_mci_idmac_ops = { +static const struct dw_mci_dma_ops dw_mci_idmac_ops = { .init = dw_mci_idmac_init, .start = dw_mci_idmac_start_dma, .stop = dw_mci_idmac_stop_dma, diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h index 3141676..9653166 100644 --- a/include/linux/mmc/dw_mmc.h +++ b/include/linux/mmc/dw_mmc.h @@ -137,7 +137,7 @@ struct dw_mci { dma_addr_t sg_dma; void *sg_cpu; - struct dw_mci_dma_ops *dma_ops; + const struct dw_mci_dma_ops *dma_ops; #ifdef CONFIG_MMC_DW_IDMAC unsigned int ring_size; #else @@ -162,7 +162,7 @@ struct dw_mci { u16 data_offset; struct device *dev; struct dw_mci_board *pdata; - struct dw_mci_drv_data *drv_data; + const struct dw_mci_drv_data *drv_data; void *priv; struct clk *biu_clk; struct clk *ciu_clk; -- cgit v0.10.2 From 0f310a057feb91ff17a7f4d5f8405e73035084e2 Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Wed, 3 Oct 2012 08:35:43 +0900 Subject: mmc: sdhci-s3c: use clk_prepare_enable and clk_disable_unprepare Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare calls as required by common clock framework. Signed-off-by: Thomas Abraham Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index 2903949..a093e2e 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -211,8 +211,8 @@ static void sdhci_s3c_set_clock(struct sdhci_host *host, unsigned int clock) if (ourhost->cur_clk != best_src) { struct clk *clk = ourhost->clk_bus[best_src]; - clk_enable(clk); - clk_disable(ourhost->clk_bus[ourhost->cur_clk]); + clk_prepare_enable(clk); + clk_disable_unprepare(ourhost->clk_bus[ourhost->cur_clk]); /* turn clock off to card before changing clock source */ writew(0, host->ioaddr + SDHCI_CLOCK_CONTROL); @@ -607,7 +607,7 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) } /* enable the local io clock and keep it running for the moment. */ - clk_enable(sc->clk_io); + clk_prepare_enable(sc->clk_io); for (clks = 0, ptr = 0; ptr < MAX_BUS_CLK; ptr++) { struct clk *clk; @@ -638,7 +638,7 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) } #ifndef CONFIG_PM_RUNTIME - clk_enable(sc->clk_bus[sc->cur_clk]); + clk_prepare_enable(sc->clk_bus[sc->cur_clk]); #endif res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -747,13 +747,13 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) sdhci_s3c_setup_card_detect_gpio(sc); #ifdef CONFIG_PM_RUNTIME - clk_disable(sc->clk_io); + clk_disable_unprepare(sc->clk_io); #endif return 0; err_req_regs: #ifndef CONFIG_PM_RUNTIME - clk_disable(sc->clk_bus[sc->cur_clk]); + clk_disable_unprepare(sc->clk_bus[sc->cur_clk]); #endif for (ptr = 0; ptr < MAX_BUS_CLK; ptr++) { if (sc->clk_bus[ptr]) { @@ -762,7 +762,7 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) } err_no_busclks: - clk_disable(sc->clk_io); + clk_disable_unprepare(sc->clk_io); clk_put(sc->clk_io); err_io_clk: @@ -794,7 +794,7 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev) gpio_free(sc->ext_cd_gpio); #ifdef CONFIG_PM_RUNTIME - clk_enable(sc->clk_io); + clk_prepare_enable(sc->clk_io); #endif sdhci_remove_host(host, 1); @@ -802,14 +802,14 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); #ifndef CONFIG_PM_RUNTIME - clk_disable(sc->clk_bus[sc->cur_clk]); + clk_disable_unprepare(sc->clk_bus[sc->cur_clk]); #endif for (ptr = 0; ptr < MAX_BUS_CLK; ptr++) { if (sc->clk_bus[ptr]) { clk_put(sc->clk_bus[ptr]); } } - clk_disable(sc->clk_io); + clk_disable_unprepare(sc->clk_io); clk_put(sc->clk_io); if (pdev->dev.of_node) { @@ -849,8 +849,8 @@ static int sdhci_s3c_runtime_suspend(struct device *dev) ret = sdhci_runtime_suspend_host(host); - clk_disable(ourhost->clk_bus[ourhost->cur_clk]); - clk_disable(busclk); + clk_disable_unprepare(ourhost->clk_bus[ourhost->cur_clk]); + clk_disable_unprepare(busclk); return ret; } @@ -861,8 +861,8 @@ static int sdhci_s3c_runtime_resume(struct device *dev) struct clk *busclk = ourhost->clk_io; int ret; - clk_enable(busclk); - clk_enable(ourhost->clk_bus[ourhost->cur_clk]); + clk_prepare_enable(busclk); + clk_prepare_enable(ourhost->clk_bus[ourhost->cur_clk]); ret = sdhci_runtime_resume_host(host); return ret; } -- cgit v0.10.2 From 3015f3d2a3cd9614294025849d3ed89fd2f3a7f5 Mon Sep 17 00:00:00 2001 From: Paolo Valente Date: Mon, 5 Nov 2012 20:29:24 +0000 Subject: pkt_sched: enable QFQ to support TSO/GSO If the max packet size for some class (configured through tc) is violated by the actual size of the packets of that class, then QFQ would not schedule classes correctly, and the data structures implementing the bucket lists may get corrupted. This problem occurs with TSO/GSO even if the max packet size is set to the MTU, and is, e.g., the cause of the failure reported in [1]. Two patches have been proposed to solve this problem in [2], one of them is a preliminary version of this patch. This patch addresses the above issues by: 1) setting QFQ parameters to proper values for supporting TSO/GSO (in particular, setting the maximum possible packet size to 64KB), 2) automatically increasing the max packet size for a class, lmax, when a packet with a larger size than the current value of lmax arrives. The drawback of the first point is that the maximum weight for a class is now limited to 4096, which is equal to 1/16 of the maximum weight sum. Finally, this patch also forcibly caps the timestamps of a class if they are too high to be stored in the bucket list. This capping, taken from QFQ+ [3], handles the unfrequent case described in the comment to the function slot_insert. [1] http://marc.info/?l=linux-netdev&m=134968777902077&w=2 [2] http://marc.info/?l=linux-netdev&m=135096573507936&w=2 [3] http://marc.info/?l=linux-netdev&m=134902691421670&w=2 Signed-off-by: Paolo Valente Tested-by: Cong Wang Acked-by: Stephen Hemminger Acked-by: Stephen Hemminger Signed-off-by: David S. Miller diff --git a/net/sched/sch_qfq.c b/net/sched/sch_qfq.c index f0dd83c..9687fa1 100644 --- a/net/sched/sch_qfq.c +++ b/net/sched/sch_qfq.c @@ -84,18 +84,19 @@ * grp->index is the index of the group; and grp->slot_shift * is the shift for the corresponding (scaled) sigma_i. */ -#define QFQ_MAX_INDEX 19 -#define QFQ_MAX_WSHIFT 16 +#define QFQ_MAX_INDEX 24 +#define QFQ_MAX_WSHIFT 12 #define QFQ_MAX_WEIGHT (1<wsum += delta_w; } +static void qfq_update_reactivate_class(struct qfq_sched *q, + struct qfq_class *cl, + u32 inv_w, u32 lmax, int delta_w) +{ + bool need_reactivation = false; + int i = qfq_calc_index(inv_w, lmax); + + if (&q->groups[i] != cl->grp && cl->qdisc->q.qlen > 0) { + /* + * shift cl->F back, to not charge the + * class for the not-yet-served head + * packet + */ + cl->F = cl->S; + /* remove class from its slot in the old group */ + qfq_deactivate_class(q, cl); + need_reactivation = true; + } + + qfq_update_class_params(q, cl, lmax, inv_w, delta_w); + + if (need_reactivation) /* activate in new group */ + qfq_activate_class(q, cl, qdisc_peek_len(cl->qdisc)); +} + + static int qfq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct nlattr **tca, unsigned long *arg) { @@ -238,7 +265,7 @@ static int qfq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct qfq_class *cl = (struct qfq_class *)*arg; struct nlattr *tb[TCA_QFQ_MAX + 1]; u32 weight, lmax, inv_w; - int i, err; + int err; int delta_w; if (tca[TCA_OPTIONS] == NULL) { @@ -270,16 +297,14 @@ static int qfq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, if (tb[TCA_QFQ_LMAX]) { lmax = nla_get_u32(tb[TCA_QFQ_LMAX]); - if (!lmax || lmax > (1UL << QFQ_MTU_SHIFT)) { + if (lmax < QFQ_MIN_LMAX || lmax > (1UL << QFQ_MTU_SHIFT)) { pr_notice("qfq: invalid max length %u\n", lmax); return -EINVAL; } } else - lmax = 1UL << QFQ_MTU_SHIFT; + lmax = psched_mtu(qdisc_dev(sch)); if (cl != NULL) { - bool need_reactivation = false; - if (tca[TCA_RATE]) { err = gen_replace_estimator(&cl->bstats, &cl->rate_est, qdisc_root_sleeping_lock(sch), @@ -291,24 +316,8 @@ static int qfq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, if (lmax == cl->lmax && inv_w == cl->inv_w) return 0; /* nothing to update */ - i = qfq_calc_index(inv_w, lmax); sch_tree_lock(sch); - if (&q->groups[i] != cl->grp && cl->qdisc->q.qlen > 0) { - /* - * shift cl->F back, to not charge the - * class for the not-yet-served head - * packet - */ - cl->F = cl->S; - /* remove class from its slot in the old group */ - qfq_deactivate_class(q, cl); - need_reactivation = true; - } - - qfq_update_class_params(q, cl, lmax, inv_w, delta_w); - - if (need_reactivation) /* activate in new group */ - qfq_activate_class(q, cl, qdisc_peek_len(cl->qdisc)); + qfq_update_reactivate_class(q, cl, inv_w, lmax, delta_w); sch_tree_unlock(sch); return 0; @@ -663,15 +672,48 @@ static void qfq_make_eligible(struct qfq_sched *q, u64 old_V) /* - * XXX we should make sure that slot becomes less than 32. - * This is guaranteed by the input values. - * roundedS is always cl->S rounded on grp->slot_shift bits. + * If the weight and lmax (max_pkt_size) of the classes do not change, + * then QFQ guarantees that the slot index is never higher than + * 2 + ((1<S) >> grp->slot_shift; - unsigned int i = (grp->front + slot) % QFQ_MAX_SLOTS; + unsigned int i; /* slot index in the bucket list */ + + if (unlikely(slot > QFQ_MAX_SLOTS - 2)) { + u64 deltaS = roundedS - grp->S - + ((u64)(QFQ_MAX_SLOTS - 2)<slot_shift); + cl->S -= deltaS; + cl->F -= deltaS; + slot = QFQ_MAX_SLOTS - 2; + } + + i = (grp->front + slot) % QFQ_MAX_SLOTS; hlist_add_head(&cl->next, &grp->slots[i]); __set_bit(slot, &grp->full_slots); @@ -892,6 +934,13 @@ static int qfq_enqueue(struct sk_buff *skb, struct Qdisc *sch) } pr_debug("qfq_enqueue: cl = %x\n", cl->common.classid); + if (unlikely(cl->lmax < qdisc_pkt_len(skb))) { + pr_debug("qfq: increasing maxpkt from %u to %u for class %u", + cl->lmax, qdisc_pkt_len(skb), cl->common.classid); + qfq_update_reactivate_class(q, cl, cl->inv_w, + qdisc_pkt_len(skb), 0); + } + err = qdisc_enqueue(skb, cl->qdisc); if (unlikely(err != NET_XMIT_SUCCESS)) { pr_debug("qfq_enqueue: enqueue failed %d\n", err); -- cgit v0.10.2 From a3d744e995d2b936c500585ae39d99ee251c89b4 Mon Sep 17 00:00:00 2001 From: Eric Leblond Date: Tue, 6 Nov 2012 02:10:10 +0000 Subject: af-packet: fix oops when socket is not present MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Due to a NULL dereference, the following patch is causing oops in normal trafic condition: commit c0de08d04215031d68fa13af36f347a6cfa252ca Author: Eric Leblond Date:   Thu Aug 16 22:02:58 2012 +0000     af_packet: don't emit packet on orig fanout group This buggy patch was a feature fix and has reached most stable branches. When skb->sk is NULL and when packet fanout is used, there is a crash in match_fanout_group where skb->sk is accessed. This patch fixes the issue by returning false as soon as the socket is NULL: this correspond to the wanted behavior because the kernel as to resend the skb to all the listening socket in this case. Signed-off-by: Eric Leblond Signed-off-by: David S. Miller diff --git a/net/core/dev.c b/net/core/dev.c index 09cb3f6..bda6d00 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1666,7 +1666,7 @@ static inline int deliver_skb(struct sk_buff *skb, static inline bool skb_loop_sk(struct packet_type *ptype, struct sk_buff *skb) { - if (ptype->af_packet_priv == NULL) + if (!ptype->af_packet_priv || !skb->sk) return false; if (ptype->id_match) -- cgit v0.10.2 From 0aa55c2367f082876f92660312214cd20c6a024b Mon Sep 17 00:00:00 2001 From: Seungwon Jeon Date: Tue, 30 Oct 2012 14:28:36 +0900 Subject: mmc: sdhci-s3c: fix the card detection in runtime-pm If host clock is disabled, host cannot detect a card in case of using CD internal for detection. Signed-off-by: Seungwon Jeon Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index a093e2e..a54dd5d 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -747,7 +747,8 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) sdhci_s3c_setup_card_detect_gpio(sc); #ifdef CONFIG_PM_RUNTIME - clk_disable_unprepare(sc->clk_io); + if (pdata->cd_type != S3C_SDHCI_CD_INTERNAL) + clk_disable_unprepare(sc->clk_io); #endif return 0; @@ -794,7 +795,8 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev) gpio_free(sc->ext_cd_gpio); #ifdef CONFIG_PM_RUNTIME - clk_prepare_enable(sc->clk_io); + if (pdata->cd_type != S3C_SDHCI_CD_INTERNAL) + clk_prepare_enable(sc->clk_io); #endif sdhci_remove_host(host, 1); -- cgit v0.10.2 From 0062b15c107d756dd7c9e41d023e87f876320c97 Mon Sep 17 00:00:00 2001 From: Vipul Pandya Date: Tue, 6 Nov 2012 03:37:09 +0000 Subject: cxgb4: Initialize data structures before using. We should not assume reserve fields to be don't cares as fields may change. Clearing data structures before using. Signed-off-by: Jay Hernandez Signed-off-by: Vipul Pandya Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index 32eec15..01fa5b7 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -2519,6 +2519,7 @@ int t4_fw_bye(struct adapter *adap, unsigned int mbox) { struct fw_bye_cmd c; + memset(&c, 0, sizeof(c)); INIT_CMD(c, BYE, WRITE); return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); } @@ -2535,6 +2536,7 @@ int t4_early_init(struct adapter *adap, unsigned int mbox) { struct fw_initialize_cmd c; + memset(&c, 0, sizeof(c)); INIT_CMD(c, INITIALIZE, WRITE); return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); } @@ -2551,6 +2553,7 @@ int t4_fw_reset(struct adapter *adap, unsigned int mbox, int reset) { struct fw_reset_cmd c; + memset(&c, 0, sizeof(c)); INIT_CMD(c, RESET, WRITE); c.val = htonl(reset); return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); @@ -3278,6 +3281,7 @@ int t4_identify_port(struct adapter *adap, unsigned int mbox, unsigned int viid, { struct fw_vi_enable_cmd c; + memset(&c, 0, sizeof(c)); c.op_to_viid = htonl(FW_CMD_OP(FW_VI_ENABLE_CMD) | FW_CMD_REQUEST | FW_CMD_EXEC | FW_VI_ENABLE_CMD_VIID(viid)); c.ien_to_len16 = htonl(FW_VI_ENABLE_CMD_LED | FW_LEN16(c)); -- cgit v0.10.2 From 5e767ab928088ca2a835b94b94dd286c2ca840ea Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Mon, 8 Oct 2012 10:47:34 +0200 Subject: ARM: OMAP: Add maintainer entry for IGEP machines Enric and I have been mantained this machine and while we are moving to device trees, it is good that people cc us when reporting bugs or regression on the board file until we have proper DT support. Signed-off-by: Javier Martinez Canillas Signed-off-by: Tony Lindgren diff --git a/MAINTAINERS b/MAINTAINERS index 59203e7..8a398b0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -841,6 +841,14 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/kristoffer/linux-hpc.git F: arch/arm/mach-sa1100/jornada720.c F: arch/arm/mach-sa1100/include/mach/jornada720.h +ARM/IGEP MACHINE SUPPORT +M: Enric Balletbo i Serra +M: Javier Martinez Canillas +L: linux-omap@vger.kernel.org +L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) +S: Maintained +F: arch/arm/mach-omap2/board-igep0020.c + ARM/INCOME PXA270 SUPPORT M: Marek Vasut L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) -- cgit v0.10.2 From cbf6bae1044286a89955d7c4b3a8d6d84a9916b3 Mon Sep 17 00:00:00 2001 From: Anders Hedlund Date: Mon, 29 Oct 2012 20:25:42 +0100 Subject: ARM: OMAP3: igep0020: Set WIFI/BT GPIO pins in correct mux mode Setup the WIFI/BT GPIO pin muxes to enable WIFI/BT functionality. This is needed to fix regression caused by recent versions of u-boot that only mux essential pins. Signed-off-by: Anders Hedlund Cc: Jonas Zetterberg Cc: Enric Balletbo i Serra Cc: Javier Martinez Canillas Cc: Matthias Brugger [tony@atomide.com: updated comments to describe regression] Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c index 48d5e41..3785906 100644 --- a/arch/arm/mach-omap2/board-igep0020.c +++ b/arch/arm/mach-omap2/board-igep0020.c @@ -580,6 +580,11 @@ static void __init igep_wlan_bt_init(void) } else return; + /* Make sure that the GPIO pins are muxed correctly */ + omap_mux_init_gpio(igep_wlan_bt_gpios[0].gpio, OMAP_PIN_OUTPUT); + omap_mux_init_gpio(igep_wlan_bt_gpios[1].gpio, OMAP_PIN_OUTPUT); + omap_mux_init_gpio(igep_wlan_bt_gpios[2].gpio, OMAP_PIN_OUTPUT); + err = gpio_request_array(igep_wlan_bt_gpios, ARRAY_SIZE(igep_wlan_bt_gpios)); if (err) { -- cgit v0.10.2 From 7fd78edc470d968daacfb472226bc021081196bd Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 6 Nov 2012 23:55:03 +0000 Subject: isdn: Make CONFIG_ISDN depend on CONFIG_NETDEVICES MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It doesn't make much sense to enable ISDN services if you don't intend to connect to a network. Therefore insisting that ISDN depends on NETDEVICES seems logical. We can then remove any guards mentioning NETDEVICES inside all subordinate drivers. This also has the nice side-effect of fixing the warning below when ISDN_I4L && !CONFIG_NETDEVICES at compile time. This patch fixes: drivers/isdn/i4l/isdn_common.c: In function ‘isdn_ioctl’: drivers/isdn/i4l/isdn_common.c:1278:8: warning: unused variable ‘s’ [-Wunused-variable] Cc: Karsten Keil Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones Signed-off-by: David S. Miller diff --git a/drivers/isdn/Kconfig b/drivers/isdn/Kconfig index a233ed5..86cd75a 100644 --- a/drivers/isdn/Kconfig +++ b/drivers/isdn/Kconfig @@ -4,7 +4,7 @@ menuconfig ISDN bool "ISDN support" - depends on NET + depends on NET && NETDEVICES depends on !S390 && !UML ---help--- ISDN ("Integrated Services Digital Network", called RNIS in France) diff --git a/drivers/isdn/i4l/Kconfig b/drivers/isdn/i4l/Kconfig index 2302fbe..9c6650e 100644 --- a/drivers/isdn/i4l/Kconfig +++ b/drivers/isdn/i4l/Kconfig @@ -6,7 +6,7 @@ if ISDN_I4L config ISDN_PPP bool "Support synchronous PPP" - depends on INET && NETDEVICES + depends on INET select SLHC help Over digital connections such as ISDN, there is no need to diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c index 8c610fa..e2a945e 100644 --- a/drivers/isdn/i4l/isdn_common.c +++ b/drivers/isdn/i4l/isdn_common.c @@ -1312,7 +1312,6 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg) } else return -EINVAL; break; -#ifdef CONFIG_NETDEVICES case IIOCNETGPN: /* Get peer phone number of a connected * isdn network interface */ @@ -1322,7 +1321,6 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg) return isdn_net_getpeer(&phone, argp); } else return -EINVAL; -#endif default: return -EINVAL; } @@ -1352,7 +1350,6 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg) case IIOCNETLCR: printk(KERN_INFO "INFO: ISDN_ABC_LCR_SUPPORT not enabled\n"); return -ENODEV; -#ifdef CONFIG_NETDEVICES case IIOCNETAIF: /* Add a network-interface */ if (arg) { @@ -1491,7 +1488,6 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg) return -EFAULT; return isdn_net_force_hangup(name); break; -#endif /* CONFIG_NETDEVICES */ case IIOCSETVER: dev->net_verbose = arg; printk(KERN_INFO "isdn: Verbose-Level is %d\n", dev->net_verbose); -- cgit v0.10.2 From 0dad9e94bdb1e424c4feeed715dff2fe51528289 Mon Sep 17 00:00:00 2001 From: Vipul Pandya Date: Wed, 7 Nov 2012 03:45:46 +0000 Subject: cxgb4: Fix initialization of SGE_CONTROL register INGPADBOUNDARY_MASK is already shifted. No need to shift it again. On reloading a driver it was resulting in a bad SGE FL MTU sizes [1536, 9088] error. This only causes an issue on systems that have L1 cache size of 32B, 128B, 512B, 2048B or 4096B. Signed-off-by: Jay Hernandez Signed-off-by: Vipul Pandya Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index 01fa5b7..730ae2c 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -2831,7 +2831,7 @@ int t4_fixup_host_params(struct adapter *adap, unsigned int page_size, HOSTPAGESIZEPF7(sge_hps)); t4_set_reg_field(adap, SGE_CONTROL, - INGPADBOUNDARY(INGPADBOUNDARY_MASK) | + INGPADBOUNDARY_MASK | EGRSTATUSPAGESIZE_MASK, INGPADBOUNDARY(fl_align_log - 5) | EGRSTATUSPAGESIZE(stat_len != 64)); -- cgit v0.10.2 From 4fe5f079b499d7ff34fd49f4005f09018c4e80aa Mon Sep 17 00:00:00 2001 From: Ian Coolidge Date: Wed, 7 Nov 2012 14:39:18 +0000 Subject: usb: gadget: g_ether: fix frame size check for 802.1Q Checking skb->len against ETH_FRAME_LEN assumes a 1514 ethernet frame size. With an 802.1Q VLAN header, ethernet frame length can now be 1518. Validate frame length against that. Signed-off-by: Ian Coolidge Signed-off-by: David S. Miller diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c index 6458764..4ec3c0d 100644 --- a/drivers/usb/gadget/u_ether.c +++ b/drivers/usb/gadget/u_ether.c @@ -20,6 +20,7 @@ #include #include #include +#include #include "u_ether.h" @@ -295,7 +296,7 @@ static void rx_complete(struct usb_ep *ep, struct usb_request *req) while (skb2) { if (status < 0 || ETH_HLEN > skb2->len - || skb2->len > ETH_FRAME_LEN) { + || skb2->len > VLAN_ETH_FRAME_LEN) { dev->net->stats.rx_errors++; dev->net->stats.rx_length_errors++; DBG(dev, "rx length %d\n", skb2->len); -- cgit v0.10.2 From a66fe1653f4e81c007a68ca975067432a42df05b Mon Sep 17 00:00:00 2001 From: Ian Coolidge Date: Wed, 7 Nov 2012 14:39:19 +0000 Subject: net: usb: cdc_eem: Fix rx skb allocation for 802.1Q VLANs cdc_eem frames might need to contain 802.1Q VLAN Ethernet frames. URB/skb sizing from usbnet will default to the hard_mtu, so account for the VLAN header by expanding that via hard_header_len Signed-off-by: Ian Coolidge Signed-off-by: David S. Miller diff --git a/drivers/net/usb/cdc_eem.c b/drivers/net/usb/cdc_eem.c index c81e278..08d55b6 100644 --- a/drivers/net/usb/cdc_eem.c +++ b/drivers/net/usb/cdc_eem.c @@ -31,6 +31,7 @@ #include #include #include +#include /* @@ -92,7 +93,7 @@ static int eem_bind(struct usbnet *dev, struct usb_interface *intf) /* no jumbogram (16K) support for now */ - dev->net->hard_header_len += EEM_HEAD + ETH_FCS_LEN; + dev->net->hard_header_len += EEM_HEAD + ETH_FCS_LEN + VLAN_HLEN; dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len; return 0; -- cgit v0.10.2 From f58161ba1b05a968e5136824b5a16b714b6a5317 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 8 Nov 2012 08:52:45 +0100 Subject: ALSA: usb-audio: Fix crash at re-preparing the PCM stream There are bug reports of a crash with USB-audio devices when PCM prepare is performed immediately after the stream is stopped via trigger callback. It turned out that the problem is that we don't wait until all URBs are killed. This patch adds a new function to synchronize the pending stop operation on an endpoint, and calls in the prepare callback for avoiding the crash above. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=49181 Reported-and-tested-by: Artem S. Tashkinov Cc: [v3.6] Signed-off-by: Takashi Iwai diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c index 7f78c6d..34de6f2 100644 --- a/sound/usb/endpoint.c +++ b/sound/usb/endpoint.c @@ -35,6 +35,7 @@ #define EP_FLAG_ACTIVATED 0 #define EP_FLAG_RUNNING 1 +#define EP_FLAG_STOPPING 2 /* * snd_usb_endpoint is a model that abstracts everything related to an @@ -502,10 +503,20 @@ static int wait_clear_urbs(struct snd_usb_endpoint *ep) if (alive) snd_printk(KERN_ERR "timeout: still %d active urbs on EP #%x\n", alive, ep->ep_num); + clear_bit(EP_FLAG_STOPPING, &ep->flags); return 0; } +/* sync the pending stop operation; + * this function itself doesn't trigger the stop operation + */ +void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep) +{ + if (ep && test_bit(EP_FLAG_STOPPING, &ep->flags)) + wait_clear_urbs(ep); +} + /* * unlink active urbs. */ @@ -918,6 +929,8 @@ void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep, if (wait) wait_clear_urbs(ep); + else + set_bit(EP_FLAG_STOPPING, &ep->flags); } } diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h index 6376ccf..3d4c970 100644 --- a/sound/usb/endpoint.h +++ b/sound/usb/endpoint.h @@ -19,6 +19,7 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep, int snd_usb_endpoint_start(struct snd_usb_endpoint *ep, int can_sleep); void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep, int force, int can_sleep, int wait); +void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep); int snd_usb_endpoint_activate(struct snd_usb_endpoint *ep); int snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep); void snd_usb_endpoint_free(struct list_head *head); diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 37428f7..5c12a3f 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -568,6 +568,9 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream) goto unlock; } + snd_usb_endpoint_sync_pending_stop(subs->sync_endpoint); + snd_usb_endpoint_sync_pending_stop(subs->data_endpoint); + ret = set_format(subs, subs->cur_audiofmt); if (ret < 0) goto unlock; -- cgit v0.10.2 From 2d9e7ea690d76b95a7eb3fd8eb3823b4f5946050 Mon Sep 17 00:00:00 2001 From: Antti Palosaari Date: Tue, 6 Nov 2012 17:23:35 +0100 Subject: [media] dvb_usb_v2: fix pid_filter callback error logging Code block braces were missing which leds broken error logging and compiler warning. drivers/media/usb/dvb-usb-v2/dvb_usb_core.c: In function 'dvb_usb_ctrl_feed': drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:291:12: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] Reported-by: Stephen Rothwell Reported-by: Milan Tuma Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c b/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c index 9859d2a..ba51f65 100644 --- a/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c +++ b/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c @@ -283,14 +283,13 @@ static inline int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, /* activate the pid on the device pid filter */ if (adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER && - adap->pid_filtering && - adap->props->pid_filter) + adap->pid_filtering && adap->props->pid_filter) { ret = adap->props->pid_filter(adap, dvbdmxfeed->index, dvbdmxfeed->pid, (count == 1) ? 1 : 0); - if (ret < 0) - dev_err(&d->udev->dev, "%s: pid_filter() " \ - "failed=%d\n", KBUILD_MODNAME, - ret); + if (ret < 0) + dev_err(&d->udev->dev, "%s: pid_filter() failed=%d\n", + KBUILD_MODNAME, ret); + } /* start feeding if it is first pid */ if (adap->feed_count == 1 && count == 1) { -- cgit v0.10.2 From 1387e2d12799e554df2f60e7ae7fe01384bcb96f Mon Sep 17 00:00:00 2001 From: Kailang Yang Date: Thu, 8 Nov 2012 10:23:18 +0100 Subject: ALSA: hda - Improve HP depop when system enter to S3 alc269_toggle_power_output() was only use in ALC269VB. I rename it to alc269vb_toggle_power_output(). Signed-off-by: Kailang Yang Cc: Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index f7397ad..b25e9b2 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -5840,7 +5840,7 @@ static int alc269_parse_auto_config(struct hda_codec *codec) return alc_parse_auto_config(codec, alc269_ignore, ssids); } -static void alc269_toggle_power_output(struct hda_codec *codec, int power_up) +static void alc269vb_toggle_power_output(struct hda_codec *codec, int power_up) { int val = alc_read_coef_idx(codec, 0x04); if (power_up) @@ -5857,10 +5857,10 @@ static void alc269_shutup(struct hda_codec *codec) if (spec->codec_variant != ALC269_TYPE_ALC269VB) return; - if ((alc_get_coef0(codec) & 0x00ff) == 0x017) - alc269_toggle_power_output(codec, 0); - if ((alc_get_coef0(codec) & 0x00ff) == 0x018) { - alc269_toggle_power_output(codec, 0); + if (spec->codec_variant == ALC269_TYPE_ALC269VB) + alc269vb_toggle_power_output(codec, 0); + if (spec->codec_variant == ALC269_TYPE_ALC269VB && + (alc_get_coef0(codec) & 0x00ff) == 0x018) { msleep(150); } } @@ -5870,24 +5870,22 @@ static int alc269_resume(struct hda_codec *codec) { struct alc_spec *spec = codec->spec; - if (spec->codec_variant == ALC269_TYPE_ALC269VB || + if (spec->codec_variant == ALC269_TYPE_ALC269VB) + alc269vb_toggle_power_output(codec, 0); + if (spec->codec_variant == ALC269_TYPE_ALC269VB && (alc_get_coef0(codec) & 0x00ff) == 0x018) { - alc269_toggle_power_output(codec, 0); msleep(150); } codec->patch_ops.init(codec); - if (spec->codec_variant == ALC269_TYPE_ALC269VB || + if (spec->codec_variant == ALC269_TYPE_ALC269VB) + alc269vb_toggle_power_output(codec, 1); + if (spec->codec_variant == ALC269_TYPE_ALC269VB && (alc_get_coef0(codec) & 0x00ff) == 0x017) { - alc269_toggle_power_output(codec, 1); msleep(200); } - if (spec->codec_variant == ALC269_TYPE_ALC269VB || - (alc_get_coef0(codec) & 0x00ff) == 0x018) - alc269_toggle_power_output(codec, 1); - snd_hda_codec_resume_amp(codec); snd_hda_codec_resume_cache(codec); hda_call_check_power_status(codec, 0x01); -- cgit v0.10.2 From 19a62823eae453619604636082085812c14ee391 Mon Sep 17 00:00:00 2001 From: Kailang Yang Date: Thu, 8 Nov 2012 10:25:37 +0100 Subject: ALSA: hda - Add new codec ALC668 and ALC900 (default name ALC1150) Signed-off-by: Kailang Yang Cc: Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index b25e9b2..c0ce3b1 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -7077,6 +7077,7 @@ static const struct hda_codec_preset snd_hda_preset_realtek[] = { .patch = patch_alc662 }, { .id = 0x10ec0663, .name = "ALC663", .patch = patch_alc662 }, { .id = 0x10ec0665, .name = "ALC665", .patch = patch_alc662 }, + { .id = 0x10ec0668, .name = "ALC668", .patch = patch_alc662 }, { .id = 0x10ec0670, .name = "ALC670", .patch = patch_alc662 }, { .id = 0x10ec0680, .name = "ALC680", .patch = patch_alc680 }, { .id = 0x10ec0880, .name = "ALC880", .patch = patch_alc880 }, @@ -7094,6 +7095,7 @@ static const struct hda_codec_preset snd_hda_preset_realtek[] = { { .id = 0x10ec0889, .name = "ALC889", .patch = patch_alc882 }, { .id = 0x10ec0892, .name = "ALC892", .patch = patch_alc662 }, { .id = 0x10ec0899, .name = "ALC898", .patch = patch_alc882 }, + { .id = 0x10ec0900, .name = "ALC1150", .patch = patch_alc882 }, {} /* terminator */ }; -- cgit v0.10.2 From 6d369a09ccd8104b35646b507112d3ddca4344eb Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 8 Nov 2012 11:26:34 +0000 Subject: x86: Export asm/{svm.h,vmx.h,perf_regs.h} Export asm/{svm.h,vmx.h,perf_regs.h} so that they can be disintegrated. It looks from previous commits that the first two should have been exported, but the header-y lines weren't added to the Kbuild. I'm guessing that asm/perf_regs.h should be exported too. Signed-off-by: David Howells diff --git a/arch/x86/include/asm/Kbuild b/arch/x86/include/asm/Kbuild index 66e5f0e..79fd8a3 100644 --- a/arch/x86/include/asm/Kbuild +++ b/arch/x86/include/asm/Kbuild @@ -12,6 +12,7 @@ header-y += mce.h header-y += msr-index.h header-y += msr.h header-y += mtrr.h +header-y += perf_regs.h header-y += posix_types_32.h header-y += posix_types_64.h header-y += posix_types_x32.h @@ -19,8 +20,10 @@ header-y += prctl.h header-y += processor-flags.h header-y += ptrace-abi.h header-y += sigcontext32.h +header-y += svm.h header-y += ucontext.h header-y += vm86.h +header-y += vmx.h header-y += vsyscall.h genhdr-y += unistd_32.h -- cgit v0.10.2 From 8bb4d9ce08b0a92ca174e41d92c180328f86173f Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 8 Nov 2012 14:36:18 +0100 Subject: ALSA: Fix card refcount unbalance There are uncovered cases whether the card refcount introduced by the commit a0830dbd isn't properly increased or decreased: - OSS PCM and mixer success paths - When lookup function gets NULL This patch fixes these places. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=50251 Cc: Signed-off-by: Takashi Iwai diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c index a9a2e63..e8a1d18 100644 --- a/sound/core/oss/mixer_oss.c +++ b/sound/core/oss/mixer_oss.c @@ -76,6 +76,7 @@ static int snd_mixer_oss_open(struct inode *inode, struct file *file) snd_card_unref(card); return -EFAULT; } + snd_card_unref(card); return 0; } diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index f337b66..4c1cc51 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -2454,6 +2454,7 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file) mutex_unlock(&pcm->open_mutex); if (err < 0) goto __error; + snd_card_unref(pcm->card); return err; __error: diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 6e8872d..f9ddecf 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -2122,7 +2122,8 @@ static int snd_pcm_playback_open(struct inode *inode, struct file *file) pcm = snd_lookup_minor_data(iminor(inode), SNDRV_DEVICE_TYPE_PCM_PLAYBACK); err = snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_PLAYBACK); - snd_card_unref(pcm->card); + if (pcm) + snd_card_unref(pcm->card); return err; } @@ -2135,7 +2136,8 @@ static int snd_pcm_capture_open(struct inode *inode, struct file *file) pcm = snd_lookup_minor_data(iminor(inode), SNDRV_DEVICE_TYPE_PCM_CAPTURE); err = snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_CAPTURE); - snd_card_unref(pcm->card); + if (pcm) + snd_card_unref(pcm->card); return err; } diff --git a/sound/core/sound.c b/sound/core/sound.c index 89780c3..70ccdab 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -114,7 +114,7 @@ void *snd_lookup_minor_data(unsigned int minor, int type) mreg = snd_minors[minor]; if (mreg && mreg->type == type) { private_data = mreg->private_data; - if (mreg->card_ptr) + if (private_data && mreg->card_ptr) atomic_inc(&mreg->card_ptr->refcount); } else private_data = NULL; diff --git a/sound/core/sound_oss.c b/sound/core/sound_oss.c index e1d79ee..726a49a 100644 --- a/sound/core/sound_oss.c +++ b/sound/core/sound_oss.c @@ -54,7 +54,7 @@ void *snd_lookup_oss_minor_data(unsigned int minor, int type) mreg = snd_oss_minors[minor]; if (mreg && mreg->type == type) { private_data = mreg->private_data; - if (mreg->card_ptr) + if (private_data && mreg->card_ptr) atomic_inc(&mreg->card_ptr->refcount); } else private_data = NULL; -- cgit v0.10.2 From 860fe2f05fa2eacac84368e23547ec8cf3cc6652 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 8 Nov 2012 10:08:04 -0500 Subject: drm/radeon/cayman: add some missing regs to the VM reg checker MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit These regs were being wronly rejected leading to rendering issues. fixes: https://bugs.freedesktop.org/show_bug.cgi?id=56876 Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Michel Dänzer diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c index 95e6318..c042e49 100644 --- a/drivers/gpu/drm/radeon/evergreen_cs.c +++ b/drivers/gpu/drm/radeon/evergreen_cs.c @@ -2725,6 +2725,9 @@ static bool evergreen_vm_reg_valid(u32 reg) /* check config regs */ switch (reg) { case GRBM_GFX_INDEX: + case CP_STRMOUT_CNTL: + case CP_COHER_CNTL: + case CP_COHER_SIZE: case VGT_VTX_VECT_EJECT_REG: case VGT_CACHE_INVALIDATION: case VGT_GS_VERTEX_REUSE: diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h index df542f1..2bc0f6a 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -91,6 +91,10 @@ #define FB_READ_EN (1 << 0) #define FB_WRITE_EN (1 << 1) +#define CP_STRMOUT_CNTL 0x84FC + +#define CP_COHER_CNTL 0x85F0 +#define CP_COHER_SIZE 0x85F4 #define CP_COHER_BASE 0x85F8 #define CP_STALLED_STAT1 0x8674 #define CP_STALLED_STAT2 0x8678 -- cgit v0.10.2 From f418b88aad0c42b4caf4d79a0cf8d14a5d0a2284 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 8 Nov 2012 10:13:24 -0500 Subject: drm/radeon/si: add some missing regs to the VM reg checker MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This register is needed for streamout to work properly. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Michel Dänzer diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index b0db712..4422d63 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -2474,6 +2474,7 @@ static bool si_vm_reg_valid(u32 reg) /* check config regs */ switch (reg) { case GRBM_GFX_INDEX: + case CP_STRMOUT_CNTL: case VGT_VTX_VECT_EJECT_REG: case VGT_CACHE_INVALIDATION: case VGT_ESGS_RING_SIZE: diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h index 7d2a20e..a8871af 100644 --- a/drivers/gpu/drm/radeon/sid.h +++ b/drivers/gpu/drm/radeon/sid.h @@ -424,6 +424,7 @@ # define RDERR_INT_ENABLE (1 << 0) # define GUI_IDLE_INT_ENABLE (1 << 19) +#define CP_STRMOUT_CNTL 0x84FC #define SCRATCH_REG0 0x8500 #define SCRATCH_REG1 0x8504 #define SCRATCH_REG2 0x8508 -- cgit v0.10.2 From f46f979fdac402c1a3decf420b82397cd93236b5 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Mon, 5 Nov 2012 12:34:47 +0000 Subject: arm64: perf: use architected event for CPU cycle counter We currently use a fake event encoding (0xFF) to indicate CPU cycles so that we don't waste an event counter and can target the hardware cycle counter instead. The problem with this approach is that the event space defined by the architecture permits an implementation to allocate 0xFF for some other event. This patch uses the architected cycle counter encoding (0x11) so that we avoid potentially clashing with event encodings on future CPU implementations. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index ecbf2d8..c76c724 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -613,17 +613,11 @@ enum armv8_pmuv3_perf_types { ARMV8_PMUV3_PERFCTR_BUS_ACCESS = 0x19, ARMV8_PMUV3_PERFCTR_MEM_ERROR = 0x1A, ARMV8_PMUV3_PERFCTR_BUS_CYCLES = 0x1D, - - /* - * This isn't an architected event. - * We detect this event number and use the cycle counter instead. - */ - ARMV8_PMUV3_PERFCTR_CPU_CYCLES = 0xFF, }; /* PMUv3 HW events mapping. */ static const unsigned armv8_pmuv3_perf_map[PERF_COUNT_HW_MAX] = { - [PERF_COUNT_HW_CPU_CYCLES] = ARMV8_PMUV3_PERFCTR_CPU_CYCLES, + [PERF_COUNT_HW_CPU_CYCLES] = ARMV8_PMUV3_PERFCTR_CLOCK_CYCLES, [PERF_COUNT_HW_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_INSTR_EXECUTED, [PERF_COUNT_HW_CACHE_REFERENCES] = ARMV8_PMUV3_PERFCTR_L1_DCACHE_ACCESS, [PERF_COUNT_HW_CACHE_MISSES] = ARMV8_PMUV3_PERFCTR_L1_DCACHE_REFILL, @@ -1106,7 +1100,7 @@ static int armv8pmu_get_event_idx(struct pmu_hw_events *cpuc, unsigned long evtype = event->config_base & ARMV8_EVTYPE_EVENT; /* Always place a cycle counter into the cycle counter. */ - if (evtype == ARMV8_PMUV3_PERFCTR_CPU_CYCLES) { + if (evtype == ARMV8_PMUV3_PERFCTR_CLOCK_CYCLES) { if (test_and_set_bit(ARMV8_IDX_CYCLE_COUNTER, cpuc->used_mask)) return -EAGAIN; -- cgit v0.10.2 From 6ba1bc826d160fe4f32bcb188687dcca4bdfaf3d Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Tue, 6 Nov 2012 19:28:48 +0000 Subject: arm64: elf: fix core dumping definitions for GP and FP registers struct user_fp does not exist for arm64, so use struct user_fpsimd_state instead for the ELF core dumping definitions. Furthermore, since we use regset-based core dumping, we do not need definitions for dump_task_regs and dump_fpu. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h index cf28464..07fea29 100644 --- a/arch/arm64/include/asm/elf.h +++ b/arch/arm64/include/asm/elf.h @@ -25,12 +25,10 @@ #include typedef unsigned long elf_greg_t; -typedef unsigned long elf_freg_t[3]; #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t)) typedef elf_greg_t elf_gregset_t[ELF_NGREG]; - -typedef struct user_fp elf_fpregset_t; +typedef struct user_fpsimd_state elf_fpregset_t; #define EM_AARCH64 183 @@ -87,7 +85,6 @@ typedef struct user_fp elf_fpregset_t; #define R_AARCH64_MOVW_PREL_G2_NC 292 #define R_AARCH64_MOVW_PREL_G3 293 - /* * These are used to set parameters in the core dumps. */ diff --git a/arch/arm64/include/asm/fpsimd.h b/arch/arm64/include/asm/fpsimd.h index b42fab9..c43b4ac 100644 --- a/arch/arm64/include/asm/fpsimd.h +++ b/arch/arm64/include/asm/fpsimd.h @@ -25,9 +25,8 @@ * - FPSR and FPCR * - 32 128-bit data registers * - * Note that user_fp forms a prefix of this structure, which is relied - * upon in the ptrace FP/SIMD accessors. struct user_fpsimd_state must - * form a prefix of struct fpsimd_state. + * Note that user_fpsimd forms a prefix of this structure, which is + * relied upon in the ptrace FP/SIMD accessors. */ struct fpsimd_state { union { diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index f22965e..e04cebd 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -310,24 +310,6 @@ struct task_struct *__switch_to(struct task_struct *prev, } /* - * Fill in the task's elfregs structure for a core dump. - */ -int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs) -{ - elf_core_copy_regs(elfregs, task_pt_regs(t)); - return 1; -} - -/* - * fill in the fpe structure for a core dump... - */ -int dump_fpu (struct pt_regs *regs, struct user_fp *fp) -{ - return 0; -} -EXPORT_SYMBOL(dump_fpu); - -/* * Shuffle the argument into the correct register before calling the * thread function. x1 is the thread argument, x2 is the pointer to * the thread function, and x3 points to the exit function. -- cgit v0.10.2 From 6212a512240f48d84090bc42a24d6dfb033754bc Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Wed, 7 Nov 2012 14:16:28 +0000 Subject: arm64: compat: select CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION Commit c1d7e01d7877 ("ipc: use Kconfig options for __ARCH_WANT_[COMPAT_]IPC_PARSE_VERSION") replaced the __ARCH_WANT_COMPAT_IPC_PARSE_VERSION token with a corresponding Kconfig option instead. This patch updates arm64 to use the latter, rather than #define an unused token. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index ef54a59..15ac18a 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1,6 +1,7 @@ config ARM64 def_bool y select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE + select ARCH_WANT_COMPAT_IPC_PARSE_VERSION select GENERIC_CLOCKEVENTS select GENERIC_HARDIRQS_NO_DEPRECATED select GENERIC_IOMAP diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h index 63f853f..68aff28 100644 --- a/arch/arm64/include/asm/unistd.h +++ b/arch/arm64/include/asm/unistd.h @@ -14,7 +14,6 @@ * along with this program. If not, see . */ #ifdef CONFIG_COMPAT -#define __ARCH_WANT_COMPAT_IPC_PARSE_VERSION #define __ARCH_WANT_COMPAT_STAT64 #define __ARCH_WANT_SYS_GETHOSTNAME #define __ARCH_WANT_SYS_PAUSE -- cgit v0.10.2 From b3770b3252589240e50f560197a19531979abba2 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Wed, 7 Nov 2012 17:00:05 +0000 Subject: arm64: smp: add missing completion for secondary boot Commit 149c24151e85 ("ARM: SMP: use a timing out completion for cpu hotplug") modified arm's CPU up path to use completions. It seems that we only got half of this patch for arm64, so add the missing call to complete. Reported-by: Jon Brawn Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 226b6bf..538300f 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -211,8 +211,7 @@ asmlinkage void __cpuinit secondary_start_kernel(void) * before we continue. */ set_cpu_online(cpu, true); - while (!cpu_active(cpu)) - cpu_relax(); + complete(&cpu_running); /* * OK, it's off to the idle thread for us -- cgit v0.10.2 From f483a853b0b932a1d75eb27a1dcbd732862260db Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 8 Nov 2012 16:00:16 +0000 Subject: arm64: mm: fix booting on systems with no memory below 4GB Booting on a system with all of its memory above the 4GB boundary breaks for two reasons: (1) We still try to create a non-empty DMA32 zone (2) no-bootmem limits allocations to 0xffffffff This patch fixes these issues for ARM64. Tested-by: Marc Zyngier Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 5d81004..77f696c 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -43,6 +43,8 @@ #else #define STACK_TOP STACK_TOP_MAX #endif /* CONFIG_COMPAT */ + +#define ARCH_LOW_ADDRESS_LIMIT PHYS_MASK #endif /* __KERNEL__ */ struct debug_info { diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index efbf7df..4cd2893 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -80,7 +80,7 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max) #ifdef CONFIG_ZONE_DMA32 /* 4GB maximum for 32-bit only capable devices */ max_dma32 = min(max, MAX_DMA32_PFN); - zone_size[ZONE_DMA32] = max_dma32 - min; + zone_size[ZONE_DMA32] = max(min, max_dma32) - min; #endif zone_size[ZONE_NORMAL] = max - max_dma32; -- cgit v0.10.2 From 7e9620f21d8c9e389fd6845487e07d5df898a2e4 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 8 Oct 2012 21:56:12 +1100 Subject: xfs: only update the last_sync_lsn when a transaction completes The log write code stamps each iclog with the current tail LSN in the iclog header so that recovery knows where to find the tail of thelog once it has found the head. Normally this is taken from the first item on the AIL - the log item that corresponds to the oldest active item in the log. The problem is that when the AIL is empty, the tail lsn is dervied from the the l_last_sync_lsn, which is the LSN of the last iclog to be written to the log. In most cases this doesn't happen, because the AIL is rarely empty on an active filesystem. However, when it does, it opens up an interesting case when the transaction being committed to the iclog spans multiple iclogs. That is, the first iclog is stamped with the l_last_sync_lsn, and IO is issued. Then the next iclog is setup, the changes copied into the iclog (takes some time), and then the l_last_sync_lsn is stamped into the header and IO is issued. This is still the same transaction, so the tail lsn of both iclogs must be the same for log recovery to find the entire transaction to be able to replay it. The problem arises in that the iclog buffer IO completion updates the l_last_sync_lsn with it's own LSN. Therefore, If the first iclog completes it's IO before the second iclog is filled and has the tail lsn stamped in it, it will stamp the LSN of the first iclog into it's tail lsn field. If the system fails at this point, log recovery will not see a complete transaction, so the transaction will no be replayed. The fix is simple - the l_last_sync_lsn is updated when a iclog buffer IO completes, and this is incorrect. The l_last_sync_lsn shoul dbe updated when a transaction is completed by a iclog buffer IO. That is, only iclog buffers that have transaction commit callbacks attached to them should update the l_last_sync_lsn. This means that the last_sync_lsn will only move forward when a commit record it written, not in the middle of a large transaction that is rolling through multiple iclog buffers. Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Reviewed-by: Christoph Hellwig Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 7f4f937..4dad756 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -2387,14 +2387,27 @@ xlog_state_do_callback( /* - * update the last_sync_lsn before we drop the + * Completion of a iclog IO does not imply that + * a transaction has completed, as transactions + * can be large enough to span many iclogs. We + * cannot change the tail of the log half way + * through a transaction as this may be the only + * transaction in the log and moving th etail to + * point to the middle of it will prevent + * recovery from finding the start of the + * transaction. Hence we should only update the + * last_sync_lsn if this iclog contains + * transaction completion callbacks on it. + * + * We have to do this before we drop the * icloglock to ensure we are the only one that * can update it. */ ASSERT(XFS_LSN_CMP(atomic64_read(&log->l_last_sync_lsn), be64_to_cpu(iclog->ic_header.h_lsn)) <= 0); - atomic64_set(&log->l_last_sync_lsn, - be64_to_cpu(iclog->ic_header.h_lsn)); + if (iclog->ic_callback) + atomic64_set(&log->l_last_sync_lsn, + be64_to_cpu(iclog->ic_header.h_lsn)); } else ioerrors++; -- cgit v0.10.2 From 408cc4e97a3ccd172d2d676e4b585badf439271b Mon Sep 17 00:00:00 2001 From: Mark Tinguely Date: Thu, 20 Sep 2012 13:16:45 -0500 Subject: xfs: zero allocation_args on the kernel stack Zero the kernel stack space that makes up the xfs_alloc_arg structures. Signed-off-by: Mark Tinguely Reviewed-by: Ben Myers Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index 4f33c32..0287f3b 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -1866,6 +1866,7 @@ xfs_alloc_fix_freelist( /* * Initialize the args structure. */ + memset(&targs, 0, sizeof(targs)); targs.tp = tp; targs.mp = mp; targs.agbp = agbp; diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index 848ffa7..e1545ec 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -2437,6 +2437,7 @@ xfs_bmap_btalloc( * Normal allocation, done through xfs_alloc_vextent. */ tryagain = isaligned = 0; + memset(&args, 0, sizeof(args)); args.tp = ap->tp; args.mp = mp; args.fsbno = ap->blkno; @@ -3082,6 +3083,7 @@ xfs_bmap_extents_to_btree( * Convert to a btree with two levels, one record in root. */ XFS_IFORK_FMT_SET(ip, whichfork, XFS_DINODE_FMT_BTREE); + memset(&args, 0, sizeof(args)); args.tp = tp; args.mp = mp; args.firstblock = *firstblock; @@ -3237,6 +3239,7 @@ xfs_bmap_local_to_extents( xfs_buf_t *bp; /* buffer for extent block */ xfs_bmbt_rec_host_t *ep;/* extent record pointer */ + memset(&args, 0, sizeof(args)); args.tp = tp; args.mp = ip->i_mount; args.firstblock = *firstblock; diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index 445bf1a..c5c4ef4 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -250,6 +250,7 @@ xfs_ialloc_ag_alloc( /* boundary */ struct xfs_perag *pag; + memset(&args, 0, sizeof(args)); args.tp = tp; args.mp = tp->t_mountp; -- cgit v0.10.2 From 326c03555b914ff153ba5b40df87fd6e28e7e367 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Fri, 5 Oct 2012 11:06:58 +1000 Subject: xfs: introduce XFS_BMAPI_STACK_SWITCH Certain allocation paths through xfs_bmapi_write() are in situations where we have limited stack available. These are almost always in the buffered IO writeback path when convertion delayed allocation extents to real extents. The current stack switch occurs for userdata allocations, which means we also do stack switches for preallocation, direct IO and unwritten extent conversion, even those these call chains have never been implicated in a stack overrun. Hence, let's target just the single stack overun offended for stack switches. To do that, introduce a XFS_BMAPI_STACK_SWITCH flag that the caller can pass xfs_bmapi_write() to indicate it should switch stacks if it needs to do allocation. Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index 0287f3b..43f791b 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -2447,7 +2447,7 @@ xfs_alloc_vextent( { DECLARE_COMPLETION_ONSTACK(done); - if (!args->userdata) + if (!args->stack_switch) return __xfs_alloc_vextent(args); diff --git a/fs/xfs/xfs_alloc.h b/fs/xfs/xfs_alloc.h index 93be4a6..ef7d488 100644 --- a/fs/xfs/xfs_alloc.h +++ b/fs/xfs/xfs_alloc.h @@ -123,6 +123,7 @@ typedef struct xfs_alloc_arg { struct completion *done; struct work_struct work; int result; + char stack_switch; } xfs_alloc_arg_t; /* diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index e1545ec..9125955 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -2441,6 +2441,7 @@ xfs_bmap_btalloc( args.tp = ap->tp; args.mp = mp; args.fsbno = ap->blkno; + args.stack_switch = ap->stack_switch; /* Trim the allocation back to the maximum an AG can fit. */ args.maxlen = MIN(ap->length, XFS_ALLOC_AG_MAX_USABLE(mp)); @@ -4675,6 +4676,9 @@ xfs_bmapi_allocate( return error; } + if (flags & XFS_BMAPI_STACK_SWITCH) + bma->stack_switch = 1; + error = xfs_bmap_alloc(bma); if (error) return error; diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h index 803b56d..b68c598 100644 --- a/fs/xfs/xfs_bmap.h +++ b/fs/xfs/xfs_bmap.h @@ -77,6 +77,7 @@ typedef struct xfs_bmap_free * from written to unwritten, otherwise convert from unwritten to written. */ #define XFS_BMAPI_CONVERT 0x040 +#define XFS_BMAPI_STACK_SWITCH 0x080 #define XFS_BMAPI_FLAGS \ { XFS_BMAPI_ENTIRE, "ENTIRE" }, \ @@ -85,7 +86,8 @@ typedef struct xfs_bmap_free { XFS_BMAPI_PREALLOC, "PREALLOC" }, \ { XFS_BMAPI_IGSTATE, "IGSTATE" }, \ { XFS_BMAPI_CONTIG, "CONTIG" }, \ - { XFS_BMAPI_CONVERT, "CONVERT" } + { XFS_BMAPI_CONVERT, "CONVERT" }, \ + { XFS_BMAPI_STACK_SWITCH, "STACK_SWITCH" } static inline int xfs_bmapi_aflag(int w) @@ -133,6 +135,7 @@ typedef struct xfs_bmalloca { char userdata;/* set if is user data */ char aeof; /* allocated space at eof */ char conv; /* overwriting unwritten extents */ + char stack_switch; } xfs_bmalloca_t; /* diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index 973dff6..7f53766 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -584,7 +584,9 @@ xfs_iomap_write_allocate( * pointer that the caller gave to us. */ error = xfs_bmapi_write(tp, ip, map_start_fsb, - count_fsb, 0, &first_block, 1, + count_fsb, + XFS_BMAPI_STACK_SWITCH, + &first_block, 1, imap, &nimaps, &free_list); if (error) goto trans_cancel; -- cgit v0.10.2 From 1f3c785c3adb7d2b109ec7c8f10081d1294b03d3 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Fri, 5 Oct 2012 11:06:59 +1000 Subject: xfs: move allocation stack switch up to xfs_bmapi_allocate Switching stacks are xfs_alloc_vextent can cause deadlocks when we run out of worker threads on the allocation workqueue. This can occur because xfs_bmap_btalloc can make multiple calls to xfs_alloc_vextent() and even if xfs_alloc_vextent() fails it can return with the AGF locked in the current allocation transaction. If we then need to make another allocation, and all the allocation worker contexts are exhausted because the are blocked waiting for the AGF lock, holder of the AGF cannot get it's xfs-alloc_vextent work completed to release the AGF. Hence allocation effectively deadlocks. To avoid this, move the stack switch one layer up to xfs_bmapi_allocate() so that all of the allocation attempts in a single switched stack transaction occur in a single worker context. This avoids the problem of an allocation being blocked waiting for a worker thread whilst holding the AGF. Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index 43f791b..335206a 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -2208,7 +2208,7 @@ xfs_alloc_read_agf( * group or loop over the allocation groups to find the result. */ int /* error */ -__xfs_alloc_vextent( +xfs_alloc_vextent( xfs_alloc_arg_t *args) /* allocation argument structure */ { xfs_agblock_t agsize; /* allocation group size */ @@ -2418,46 +2418,6 @@ error0: return error; } -static void -xfs_alloc_vextent_worker( - struct work_struct *work) -{ - struct xfs_alloc_arg *args = container_of(work, - struct xfs_alloc_arg, work); - unsigned long pflags; - - /* we are in a transaction context here */ - current_set_flags_nested(&pflags, PF_FSTRANS); - - args->result = __xfs_alloc_vextent(args); - complete(args->done); - - current_restore_flags_nested(&pflags, PF_FSTRANS); -} - -/* - * Data allocation requests often come in with little stack to work on. Push - * them off to a worker thread so there is lots of stack to use. Metadata - * requests, OTOH, are generally from low stack usage paths, so avoid the - * context switch overhead here. - */ -int -xfs_alloc_vextent( - struct xfs_alloc_arg *args) -{ - DECLARE_COMPLETION_ONSTACK(done); - - if (!args->stack_switch) - return __xfs_alloc_vextent(args); - - - args->done = &done; - INIT_WORK_ONSTACK(&args->work, xfs_alloc_vextent_worker); - queue_work(xfs_alloc_wq, &args->work); - wait_for_completion(&done); - return args->result; -} - /* * Free an extent. * Just break up the extent address and hand off to xfs_free_ag_extent diff --git a/fs/xfs/xfs_alloc.h b/fs/xfs/xfs_alloc.h index ef7d488..feacb06 100644 --- a/fs/xfs/xfs_alloc.h +++ b/fs/xfs/xfs_alloc.h @@ -120,10 +120,6 @@ typedef struct xfs_alloc_arg { char isfl; /* set if is freelist blocks - !acctg */ char userdata; /* set if this is user data */ xfs_fsblock_t firstblock; /* io first block allocated */ - struct completion *done; - struct work_struct work; - int result; - char stack_switch; } xfs_alloc_arg_t; /* diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index 9125955..83d0cf3 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -2441,7 +2441,6 @@ xfs_bmap_btalloc( args.tp = ap->tp; args.mp = mp; args.fsbno = ap->blkno; - args.stack_switch = ap->stack_switch; /* Trim the allocation back to the maximum an AG can fit. */ args.maxlen = MIN(ap->length, XFS_ALLOC_AG_MAX_USABLE(mp)); @@ -4620,12 +4619,11 @@ xfs_bmapi_delay( STATIC int -xfs_bmapi_allocate( - struct xfs_bmalloca *bma, - int flags) +__xfs_bmapi_allocate( + struct xfs_bmalloca *bma) { struct xfs_mount *mp = bma->ip->i_mount; - int whichfork = (flags & XFS_BMAPI_ATTRFORK) ? + int whichfork = (bma->flags & XFS_BMAPI_ATTRFORK) ? XFS_ATTR_FORK : XFS_DATA_FORK; struct xfs_ifork *ifp = XFS_IFORK_PTR(bma->ip, whichfork); int tmp_logflags = 0; @@ -4658,25 +4656,25 @@ xfs_bmapi_allocate( * Indicate if this is the first user data in the file, or just any * user data. */ - if (!(flags & XFS_BMAPI_METADATA)) { + if (!(bma->flags & XFS_BMAPI_METADATA)) { bma->userdata = (bma->offset == 0) ? XFS_ALLOC_INITIAL_USER_DATA : XFS_ALLOC_USERDATA; } - bma->minlen = (flags & XFS_BMAPI_CONTIG) ? bma->length : 1; + bma->minlen = (bma->flags & XFS_BMAPI_CONTIG) ? bma->length : 1; /* * Only want to do the alignment at the eof if it is userdata and * allocation length is larger than a stripe unit. */ if (mp->m_dalign && bma->length >= mp->m_dalign && - !(flags & XFS_BMAPI_METADATA) && whichfork == XFS_DATA_FORK) { + !(bma->flags & XFS_BMAPI_METADATA) && whichfork == XFS_DATA_FORK) { error = xfs_bmap_isaeof(bma, whichfork); if (error) return error; } - if (flags & XFS_BMAPI_STACK_SWITCH) + if (bma->flags & XFS_BMAPI_STACK_SWITCH) bma->stack_switch = 1; error = xfs_bmap_alloc(bma); @@ -4713,7 +4711,7 @@ xfs_bmapi_allocate( * A wasdelay extent has been initialized, so shouldn't be flagged * as unwritten. */ - if (!bma->wasdel && (flags & XFS_BMAPI_PREALLOC) && + if (!bma->wasdel && (bma->flags & XFS_BMAPI_PREALLOC) && xfs_sb_version_hasextflgbit(&mp->m_sb)) bma->got.br_state = XFS_EXT_UNWRITTEN; @@ -4741,6 +4739,45 @@ xfs_bmapi_allocate( return 0; } +static void +xfs_bmapi_allocate_worker( + struct work_struct *work) +{ + struct xfs_bmalloca *args = container_of(work, + struct xfs_bmalloca, work); + unsigned long pflags; + + /* we are in a transaction context here */ + current_set_flags_nested(&pflags, PF_FSTRANS); + + args->result = __xfs_bmapi_allocate(args); + complete(args->done); + + current_restore_flags_nested(&pflags, PF_FSTRANS); +} + +/* + * Some allocation requests often come in with little stack to work on. Push + * them off to a worker thread so there is lots of stack to use. Otherwise just + * call directly to avoid the context switch overhead here. + */ +int +xfs_bmapi_allocate( + struct xfs_bmalloca *args) +{ + DECLARE_COMPLETION_ONSTACK(done); + + if (!args->stack_switch) + return __xfs_bmapi_allocate(args); + + + args->done = &done; + INIT_WORK_ONSTACK(&args->work, xfs_bmapi_allocate_worker); + queue_work(xfs_alloc_wq, &args->work); + wait_for_completion(&done); + return args->result; +} + STATIC int xfs_bmapi_convert_unwritten( struct xfs_bmalloca *bma, @@ -4926,6 +4963,7 @@ xfs_bmapi_write( bma.conv = !!(flags & XFS_BMAPI_CONVERT); bma.wasdel = wasdelay; bma.offset = bno; + bma.flags = flags; /* * There's a 32/64 bit type mismatch between the @@ -4941,7 +4979,7 @@ xfs_bmapi_write( ASSERT(len > 0); ASSERT(bma.length > 0); - error = xfs_bmapi_allocate(&bma, flags); + error = xfs_bmapi_allocate(&bma); if (error) goto error0; if (bma.blkno == NULLFSBLOCK) diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h index b68c598..5f469c3 100644 --- a/fs/xfs/xfs_bmap.h +++ b/fs/xfs/xfs_bmap.h @@ -136,6 +136,10 @@ typedef struct xfs_bmalloca { char aeof; /* allocated space at eof */ char conv; /* overwriting unwritten extents */ char stack_switch; + int flags; + struct completion *done; + struct work_struct work; + int result; } xfs_bmalloca_t; /* -- cgit v0.10.2 From eaef854335ce09956e930fe4a193327417edc6c9 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Tue, 9 Oct 2012 14:50:52 +1100 Subject: xfs: growfs: don't read garbage for new secondary superblocks When updating new secondary superblocks in a growfs operation, the superblock buffer is read from the newly grown region of the underlying device. This is not guaranteed to be zero, so violates the underlying assumption that the unused parts of superblocks are zero filled. Get a new buffer for these secondary superblocks to ensure that the unused regions are zero filled correctly. Signed-off-by: Dave Chinner Reviewed-by: Carlos Maiolino Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index c25b094..4beaede 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -399,9 +399,26 @@ xfs_growfs_data_private( /* update secondary superblocks. */ for (agno = 1; agno < nagcount; agno++) { - error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, + error = 0; + /* + * new secondary superblocks need to be zeroed, not read from + * disk as the contents of the new area we are growing into is + * completely unknown. + */ + if (agno < oagcount) { + error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)), XFS_FSS_TO_BB(mp, 1), 0, &bp); + } else { + bp = xfs_trans_get_buf(NULL, mp->m_ddev_targp, + XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)), + XFS_FSS_TO_BB(mp, 1), 0); + if (bp) + xfs_buf_zero(bp, 0, BBTOB(bp->b_length)); + else + error = ENOMEM; + } + if (error) { xfs_warn(mp, "error %d reading secondary superblock for ag %d", @@ -423,7 +440,7 @@ xfs_growfs_data_private( break; /* no point in continuing */ } } - return 0; + return error; error0: xfs_trans_cancel(tp, XFS_TRANS_ABORT); -- cgit v0.10.2 From 1e7acbb7bc1ae7c1c62fd1310b3176a820225056 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Thu, 25 Oct 2012 17:22:30 +1100 Subject: xfs: silence uninitialised f.file warning. Uninitialised variable build warning introduced by 2903ff0 ("switch simple cases of fget_light to fdget"), gcc is not smart enough to work out that the variable is not used uninitialised, and the commit removed the initialisation at declaration that the old variable had. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index 8305f2a..c1df3c6 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -70,7 +70,7 @@ xfs_find_handle( int hsize; xfs_handle_t handle; struct inode *inode; - struct fd f; + struct fd f = {0}; struct path path; int error; struct xfs_inode *ip; -- cgit v0.10.2 From ca250b1b3d711936d7dae9e97871f2261347f82d Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Fri, 2 Nov 2012 11:38:41 +1100 Subject: xfs: invalidate allocbt blocks moved to the free list When we free a block from the alloc btree tree, we move it to the freelist held in the AGFL and mark it busy in the busy extent tree. This typically happens when we merge btree blocks. Once the transaction is committed and checkpointed, the block can remain on the free list for an indefinite amount of time. Now, this isn't the end of the world at this point - if the free list is shortened, the buffer is invalidated in the transaction that moves it back to free space. If the buffer is allocated as metadata from the free list, then all the modifications getted logged, and we have no issues, either. And if it gets allocated as userdata direct from the freelist, it gets invalidated and so will never get written. However, during the time it sits on the free list, pressure on the log can cause the AIL to be pushed and the buffer that covers the block gets pushed for write. IOWs, we end up writing a freed metadata block to disk. Again, this isn't the end of the world because we know from the above we are only writing to free space. The problem, however, is for validation callbacks. If the block was on old btree root block, then the level of the block is going to be higher than the current tree root, and so will fail validation. There may be other inconsistencies in the block as well, and currently we don't care because the block is in free space. Shutting down the filesystem because a freed block doesn't pass write validation, OTOH, is rather unfriendly. So, make sure we always invalidate buffers as they move from the free space trees to the free list so that we guarantee they never get written to disk while on the free list. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Reviewed-by: Phil White Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_alloc_btree.c b/fs/xfs/xfs_alloc_btree.c index f1647ca..f7876c6 100644 --- a/fs/xfs/xfs_alloc_btree.c +++ b/fs/xfs/xfs_alloc_btree.c @@ -121,6 +121,8 @@ xfs_allocbt_free_block( xfs_extent_busy_insert(cur->bc_tp, be32_to_cpu(agf->agf_seqno), bno, 1, XFS_EXTENT_BUSY_SKIP_DISCARD); xfs_trans_agbtree_delta(cur->bc_tp, -1); + + xfs_trans_binval(cur->bc_tp, bp); return 0; } -- cgit v0.10.2 From 4b62acfe99e158fb7812982d1cf90a075710a92c Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Fri, 2 Nov 2012 11:38:42 +1100 Subject: xfs: don't vmap inode cluster buffers during free Inode buffers do not need to be mapped as inodes are read or written directly from/to the pages underlying the buffer. This fixes a regression introduced by commit 611c994 ("xfs: make XBF_MAPPED the default behaviour"). Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 2778258..1938b41 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -1509,7 +1509,8 @@ xfs_ifree_cluster( * to mark all the active inodes on the buffer stale. */ bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, blkno, - mp->m_bsize * blks_per_cluster, 0); + mp->m_bsize * blks_per_cluster, + XBF_UNMAPPED); if (!bp) return ENOMEM; -- cgit v0.10.2 From 03b1293edad462ad1ad62bcc5160c76758e450d5 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Fri, 2 Nov 2012 14:23:12 +1100 Subject: xfs: fix buffer shudown reference count mismatch When we shut down the filesystem, we have to unpin and free all the buffers currently active in the CIL. To do this we unpin and remove them in one operation as a result of a failed iclogbuf write. For buffers, we do this removal via a simultated IO completion of after marking the buffer stale. At the time we do this, we have two references to the buffer - the active LRU reference and the buf log item. The LRU reference is removed by marking the buffer stale, and the active CIL reference is by the xfs_buf_iodone() callback that is run by xfs_buf_do_callbacks() during ioend processing (via the bp->b_iodone callback). However, ioend processing requires one more reference - that of the IO that it is completing. We don't have this reference, so we free the buffer prematurely and use it after it is freed. For buffers marked with XBF_ASYNC, this leads to assert failures in xfs_buf_rele() on debug kernels because the b_hold count is zero. Fix this by making sure we take the necessary IO reference before starting IO completion processing on the stale buffer, and set the XBF_ASYNC flag to ensure that IO completion processing removes all the active references from the buffer to ensure it is fully torn down. Cc: Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index a8d0ed9..becf4a9 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -526,7 +526,25 @@ xfs_buf_item_unpin( } xfs_buf_relse(bp); } else if (freed && remove) { + /* + * There are currently two references to the buffer - the active + * LRU reference and the buf log item. What we are about to do + * here - simulate a failed IO completion - requires 3 + * references. + * + * The LRU reference is removed by the xfs_buf_stale() call. The + * buf item reference is removed by the xfs_buf_iodone() + * callback that is run by xfs_buf_do_callbacks() during ioend + * processing (via the bp->b_iodone callback), and then finally + * the ioend processing will drop the IO reference if the buffer + * is marked XBF_ASYNC. + * + * Hence we need to take an additional reference here so that IO + * completion processing doesn't free the buffer prematurely. + */ xfs_buf_lock(bp); + xfs_buf_hold(bp); + bp->b_flags |= XBF_ASYNC; xfs_buf_ioerror(bp, EIO); XFS_BUF_UNDONE(bp); xfs_buf_stale(bp); -- cgit v0.10.2 From 6ce377afd1755eae5c93410ca9a1121dfead7b87 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Fri, 2 Nov 2012 11:38:44 +1100 Subject: xfs: fix reading of wrapped log data Commit 4439647 ("xfs: reset buffer pointers before freeing them") in 3.0-rc1 introduced a regression when recovering log buffers that wrapped around the end of log. The second part of the log buffer at the start of the physical log was being read into the header buffer rather than the data buffer, and hence recovery was seeing garbage in the data buffer when it got to the region of the log buffer that was incorrectly read. Cc: # 3.0.x, 3.2.x, 3.4.x 3.6.x Reported-by: Torsten Kaiser Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 5da3ace..d308749 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3541,7 +3541,7 @@ xlog_do_recovery_pass( * - order is important. */ error = xlog_bread_offset(log, 0, - bblks - split_bblks, hbp, + bblks - split_bblks, dbp, offset + BBTOB(split_bblks)); if (error) goto bread_err2; -- cgit v0.10.2 From 479dd5670521a46ebcb55f535f8a41919cb93696 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Tue, 6 Nov 2012 22:48:49 +0100 Subject: drm/nv41/vm: fix typo in type name It's a miracle it compiles at all - nv04_vm_priv does not exist anywhere in the tree. Signed-off-by: Marcin Slusarz Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c b/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c index 49050d9..9474cfc 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c +++ b/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c @@ -67,7 +67,7 @@ nv41_vm_unmap(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt) static void nv41_vm_flush(struct nouveau_vm *vm) { - struct nv04_vm_priv *priv = (void *)vm->vmm; + struct nv04_vmmgr_priv *priv = (void *)vm->vmm; mutex_lock(&nv_subdev(priv)->mutex); nv_wr32(priv, 0x100810, 0x00000022); -- cgit v0.10.2 From a4dd4ec250fc2ac1fee371a08020bfca498a8375 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Tue, 6 Nov 2012 22:48:50 +0100 Subject: drm/nv40/graph: fix typo in type names nv04_graph_priv / nv04_graph_chan are not defined in this context... Signed-off-by: Marcin Slusarz Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c b/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c index 8d00210..4250012 100644 --- a/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c +++ b/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c @@ -156,8 +156,8 @@ nv40_graph_context_ctor(struct nouveau_object *parent, static int nv40_graph_context_fini(struct nouveau_object *object, bool suspend) { - struct nv04_graph_priv *priv = (void *)object->engine; - struct nv04_graph_chan *chan = (void *)object; + struct nv40_graph_priv *priv = (void *)object->engine; + struct nv40_graph_chan *chan = (void *)object; u32 inst = 0x01000000 | nv_gpuobj(chan)->addr >> 4; int ret = 0; -- cgit v0.10.2 From 7707b701ebfea64afa6bfb23aa318fd687892754 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Tue, 6 Nov 2012 22:48:51 +0100 Subject: drm/nv40/mpeg: fix context handling It slipped in thanks to typeless API. Signed-off-by: Marcin Slusarz Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/engine/mpeg/nv40.c b/drivers/gpu/drm/nouveau/core/engine/mpeg/nv40.c index 1241857..f7c581a 100644 --- a/drivers/gpu/drm/nouveau/core/engine/mpeg/nv40.c +++ b/drivers/gpu/drm/nouveau/core/engine/mpeg/nv40.c @@ -38,7 +38,7 @@ struct nv40_mpeg_priv { }; struct nv40_mpeg_chan { - struct nouveau_mpeg base; + struct nouveau_mpeg_chan base; }; /******************************************************************************* -- cgit v0.10.2 From 11d92561c81be2f4a7af37f035e1af294b960abe Mon Sep 17 00:00:00 2001 From: Kelly Doran Date: Wed, 7 Nov 2012 10:02:04 +1000 Subject: drm/nvc0/disp: fix regression in vblank semaphore release Signed-off-by: Kelly Doran Reviewed-by: Maarten Lankhorst Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c index 16a9afb..05a909a 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c @@ -22,6 +22,8 @@ * Authors: Ben Skeggs */ +#include + #include #include @@ -37,6 +39,7 @@ nv50_disp_sclass[] = { static void nv50_disp_intr_vblank(struct nv50_disp_priv *priv, int crtc) { + struct nouveau_bar *bar = nouveau_bar(priv); struct nouveau_disp *disp = &priv->base; struct nouveau_software_chan *chan, *temp; unsigned long flags; @@ -46,18 +49,19 @@ nv50_disp_intr_vblank(struct nv50_disp_priv *priv, int crtc) if (chan->vblank.crtc != crtc) continue; - nv_wr32(priv, 0x001704, chan->vblank.channel); - nv_wr32(priv, 0x001710, 0x80000000 | chan->vblank.ctxdma); - if (nv_device(priv)->chipset == 0x50) { + nv_wr32(priv, 0x001704, chan->vblank.channel); + nv_wr32(priv, 0x001710, 0x80000000 | chan->vblank.ctxdma); + bar->flush(bar); nv_wr32(priv, 0x001570, chan->vblank.offset); nv_wr32(priv, 0x001574, chan->vblank.value); } else { - if (nv_device(priv)->chipset >= 0xc0) { - nv_wr32(priv, 0x06000c, - upper_32_bits(chan->vblank.offset)); - } - nv_wr32(priv, 0x060010, chan->vblank.offset); + nv_wr32(priv, 0x001718, 0x80000000 | chan->vblank.channel); + bar->flush(bar); + nv_wr32(priv, 0x06000c, + upper_32_bits(chan->vblank.offset)); + nv_wr32(priv, 0x060010, + lower_32_bits(chan->vblank.offset)); nv_wr32(priv, 0x060014, chan->vblank.value); } -- cgit v0.10.2 From df285500b203a5603b1cdd1b16f42ab7a3544d7b Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Thu, 8 Nov 2012 17:19:38 +0100 Subject: drm/nouveau: fix acpi edid retrieval Commit c0077061e7ea accidentally inverted the logic for nouveau_acpi_edid, causing it to only show a connector as connected when the edid could not be retrieved with acpi. Signed-off-by: Maarten Lankhorst Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 9a6e2cb..d3595b2 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -355,7 +355,7 @@ nouveau_connector_detect_lvds(struct drm_connector *connector, bool force) * valid - it's not (rh#613284) */ if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) { - if (!(nv_connector->edid = nouveau_acpi_edid(dev, connector))) { + if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) { status = connector_status_connected; goto out; } -- cgit v0.10.2 From 237242bddc99041e15a4ca51b8439657cadaff17 Mon Sep 17 00:00:00 2001 From: Cornelia Huck Date: Fri, 9 Nov 2012 14:54:12 +1030 Subject: virtio: Don't access index after unregister. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Virtio wants to release used indices after the corresponding virtio device has been unregistered. However, virtio does not hold an extra reference, giving up its last reference with device_unregister(), making accessing dev->index afterwards invalid. I actually saw problems when testing my (not-yet-merged) virtio-ccw code: - device_add virtio-net,id=xxx -> creates device virtio with n>0 - device_del xxx -> deletes virtio, but calls ida_simple_remove with an index of 0 - device_add virtio-net,id=xxx -> tries to add virtio0, which is still in use... So let's save the index we want to release before calling device_unregister(). Signed-off-by: Cornelia Huck Acked-by: Sjur Brændeland Cc: stable@kernel.org Signed-off-by: Rusty Russell diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index 1e8659c..809b0de 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -225,8 +225,10 @@ EXPORT_SYMBOL_GPL(register_virtio_device); void unregister_virtio_device(struct virtio_device *dev) { + int index = dev->index; /* save for after device release */ + device_unregister(&dev->dev); - ida_simple_remove(&virtio_index_ida, dev->index); + ida_simple_remove(&virtio_index_ida, index); } EXPORT_SYMBOL_GPL(unregister_virtio_device); -- cgit v0.10.2 From c24f9f195edf8c7f78eff1081cdadd26bd272ee3 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Thu, 8 Nov 2012 15:53:29 -0800 Subject: checkpatch: improve network block comment style checking Some comment styles in net and drivers/net are flagged inappropriately. Avoid proclaiming inline comments like: int a = b; /* some comment */ and block comments like: /********************* * some comment ********************/ are defective. Tested with $ cat drivers/net/t.c /* foo */ /* * foo */ /* foo */ /* foo * bar */ /**************************** * some long block comment ***************************/ struct foo { int bar; /* another test */ }; $ Signed-off-by: Joe Perches Reported-by: Larry Finger Cc: David Miller Cc: Stephen Hemminger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 21a9f5d..f18750e 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -1890,8 +1890,10 @@ sub process { } if ($realfile =~ m@^(drivers/net/|net/)@ && - $rawline !~ m@^\+[ \t]*(\/\*|\*\/)@ && - $rawline =~ m@^\+[ \t]*.+\*\/[ \t]*$@) { + $rawline !~ m@^\+[ \t]*\*/[ \t]*$@ && #trailing */ + $rawline !~ m@^\+.*/\*.*\*/[ \t]*$@ && #inline /*...*/ + $rawline !~ m@^\+.*\*{2,}/[ \t]*$@ && #trailing **/ + $rawline =~ m@^\+[ \t]*.+\*\/[ \t]*$@) { #non blank */ WARN("NETWORKING_BLOCK_COMMENT_STYLE", "networking block comments put the trailing */ on a separate line\n" . $herecurr); } -- cgit v0.10.2 From a80a6b85b428e6ce12a8363bb1f08d44c50f3252 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Thu, 8 Nov 2012 15:53:35 -0800 Subject: revert "epoll: support for disabling items, and a self-test app" Revert commit 03a7beb55b9f ("epoll: support for disabling items, and a self-test app") pending resolution of the issues identified by Michael Kerrisk, copied below. We'll revisit this for 3.8. : I've taken a look at this patch as it currently stands in 3.7-rc1, and : done a bit of testing. (By the way, the test program : tools/testing/selftests/epoll/test_epoll.c does not compile...) : : There are one or two places where the behavior seems a little strange, : so I have a question or two at the end of this mail. But other than : that, I want to check my understanding so that the interface can be : correctly documented. : : Just to go though my understanding, the problem is the following : scenario in a multithreaded application: : : 1. Multiple threads are performing epoll_wait() operations, : and maintaining a user-space cache that contains information : corresponding to each file descriptor being monitored by : epoll_wait(). : : 2. At some point, a thread wants to delete (EPOLL_CTL_DEL) : a file descriptor from the epoll interest list, and : delete the corresponding record from the user-space cache. : : 3. The problem with (2) is that some other thread may have : previously done an epoll_wait() that retrieved information : about the fd in question, and may be in the middle of using : information in the cache that relates to that fd. Thus, : there is a potential race. : : 4. The race can't solved purely in user space, because doing : so would require applying a mutex across the epoll_wait() : call, which would of course blow thread concurrency. : : Right? : : Your solution is the EPOLL_CTL_DISABLE operation. I want to : confirm my understanding about how to use this flag, since : the description that has accompanied the patches so far : has been a bit sparse : : 0. In the scenario you're concerned about, deleting a file : descriptor means (safely) doing the following: : (a) Deleting the file descriptor from the epoll interest list : using EPOLL_CTL_DEL : (b) Deleting the corresponding record in the user-space cache : : 1. It's only meaningful to use this EPOLL_CTL_DISABLE in : conjunction with EPOLLONESHOT. : : 2. Using EPOLL_CTL_DISABLE without using EPOLLONESHOT in : conjunction is a logical error. : : 3. The correct way to code multithreaded applications using : EPOLL_CTL_DISABLE and EPOLLONESHOT is as follows: : : a. All EPOLL_CTL_ADD and EPOLL_CTL_MOD operations should : should EPOLLONESHOT. : : b. When a thread wants to delete a file descriptor, it : should do the following: : : [1] Call epoll_ctl(EPOLL_CTL_DISABLE) : [2] If the return status from epoll_ctl(EPOLL_CTL_DISABLE) : was zero, then the file descriptor can be safely : deleted by the thread that made this call. : [3] If the epoll_ctl(EPOLL_CTL_DISABLE) fails with EBUSY, : then the descriptor is in use. In this case, the calling : thread should set a flag in the user-space cache to : indicate that the thread that is using the descriptor : should perform the deletion operation. : : Is all of the above correct? : : The implementation depends on checking on whether : (events & ~EP_PRIVATE_BITS) == 0 : This replies on the fact that EPOLL_CTL_AD and EPOLL_CTL_MOD always : set EPOLLHUP and EPOLLERR in the 'events' mask, and EPOLLONESHOT : causes those flags (as well as all others in ~EP_PRIVATE_BITS) to be : cleared. : : A corollary to the previous paragraph is that using EPOLL_CTL_DISABLE : is only useful in conjunction with EPOLLONESHOT. However, as things : stand, one can use EPOLL_CTL_DISABLE on a file descriptor that does : not have EPOLLONESHOT set in 'events' This results in the following : (slightly surprising) behavior: : : (a) The first call to epoll_ctl(EPOLL_CTL_DISABLE) returns 0 : (the indicator that the file descriptor can be safely deleted). : (b) The next call to epoll_ctl(EPOLL_CTL_DISABLE) fails with EBUSY. : : This doesn't seem particularly useful, and in fact is probably an : indication that the user made a logic error: they should only be using : epoll_ctl(EPOLL_CTL_DISABLE) on a file descriptor for which : EPOLLONESHOT was set in 'events'. If that is correct, then would it : not make sense to return an error to user space for this case? Cc: Michael Kerrisk Cc: "Paton J. Lewis" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/eventpoll.c b/fs/eventpoll.c index da72250..cd96649 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -346,7 +346,7 @@ static inline struct epitem *ep_item_from_epqueue(poll_table *p) /* Tells if the epoll_ctl(2) operation needs an event copy from userspace */ static inline int ep_op_has_event(int op) { - return op == EPOLL_CTL_ADD || op == EPOLL_CTL_MOD; + return op != EPOLL_CTL_DEL; } /* Initialize the poll safe wake up structure */ @@ -676,34 +676,6 @@ static int ep_remove(struct eventpoll *ep, struct epitem *epi) return 0; } -/* - * Disables a "struct epitem" in the eventpoll set. Returns -EBUSY if the item - * had no event flags set, indicating that another thread may be currently - * handling that item's events (in the case that EPOLLONESHOT was being - * used). Otherwise a zero result indicates that the item has been disabled - * from receiving events. A disabled item may be re-enabled via - * EPOLL_CTL_MOD. Must be called with "mtx" held. - */ -static int ep_disable(struct eventpoll *ep, struct epitem *epi) -{ - int result = 0; - unsigned long flags; - - spin_lock_irqsave(&ep->lock, flags); - if (epi->event.events & ~EP_PRIVATE_BITS) { - if (ep_is_linked(&epi->rdllink)) - list_del_init(&epi->rdllink); - /* Ensure ep_poll_callback will not add epi back onto ready - list: */ - epi->event.events &= EP_PRIVATE_BITS; - } - else - result = -EBUSY; - spin_unlock_irqrestore(&ep->lock, flags); - - return result; -} - static void ep_free(struct eventpoll *ep) { struct rb_node *rbp; @@ -1048,6 +1020,8 @@ static void ep_rbtree_insert(struct eventpoll *ep, struct epitem *epi) rb_insert_color(&epi->rbn, &ep->rbr); } + + #define PATH_ARR_SIZE 5 /* * These are the number paths of length 1 to 5, that we are allowing to emanate @@ -1813,12 +1787,6 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd, } else error = -ENOENT; break; - case EPOLL_CTL_DISABLE: - if (epi) - error = ep_disable(ep, epi); - else - error = -ENOENT; - break; } mutex_unlock(&ep->mtx); diff --git a/include/uapi/linux/eventpoll.h b/include/uapi/linux/eventpoll.h index 8c99ce7..2c267bc 100644 --- a/include/uapi/linux/eventpoll.h +++ b/include/uapi/linux/eventpoll.h @@ -25,7 +25,6 @@ #define EPOLL_CTL_ADD 1 #define EPOLL_CTL_DEL 2 #define EPOLL_CTL_MOD 3 -#define EPOLL_CTL_DISABLE 4 /* * Request the handling of system wakeup events so as to prevent system suspends diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index 4348014..85baf11 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -1,4 +1,4 @@ -TARGETS = breakpoints kcmp mqueue vm cpu-hotplug memory-hotplug epoll +TARGETS = breakpoints kcmp mqueue vm cpu-hotplug memory-hotplug all: for TARGET in $(TARGETS); do \ diff --git a/tools/testing/selftests/epoll/Makefile b/tools/testing/selftests/epoll/Makefile deleted file mode 100644 index 19806ed..0000000 --- a/tools/testing/selftests/epoll/Makefile +++ /dev/null @@ -1,11 +0,0 @@ -# Makefile for epoll selftests - -all: test_epoll -%: %.c - gcc -pthread -g -o $@ $^ - -run_tests: all - ./test_epoll - -clean: - $(RM) test_epoll diff --git a/tools/testing/selftests/epoll/test_epoll.c b/tools/testing/selftests/epoll/test_epoll.c deleted file mode 100644 index f752539..0000000 --- a/tools/testing/selftests/epoll/test_epoll.c +++ /dev/null @@ -1,344 +0,0 @@ -/* - * tools/testing/selftests/epoll/test_epoll.c - * - * Copyright 2012 Adobe Systems Incorporated - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * Paton J. Lewis - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -/* - * A pointer to an epoll_item_private structure will be stored in the epoll - * item's event structure so that we can get access to the epoll_item_private - * data after calling epoll_wait: - */ -struct epoll_item_private { - int index; /* Position of this struct within the epoll_items array. */ - int fd; - uint32_t events; - pthread_mutex_t mutex; /* Guards the following variables... */ - int stop; - int status; /* Stores any error encountered while handling item. */ - /* The following variable allows us to test whether we have encountered - a problem while attempting to cancel and delete the associated - event. When the test program exits, 'deleted' should be exactly - one. If it is greater than one, then the failed test reflects a real - world situation where we would have tried to access the epoll item's - private data after deleting it: */ - int deleted; -}; - -struct epoll_item_private *epoll_items; - -/* - * Delete the specified item from the epoll set. In a real-world secneario this - * is where we would free the associated data structure, but in this testing - * environment we retain the structure so that we can test for double-deletion: - */ -void delete_item(int index) -{ - __sync_fetch_and_add(&epoll_items[index].deleted, 1); -} - -/* - * A pointer to a read_thread_data structure will be passed as the argument to - * each read thread: - */ -struct read_thread_data { - int stop; - int status; /* Indicates any error encountered by the read thread. */ - int epoll_set; -}; - -/* - * The function executed by the read threads: - */ -void *read_thread_function(void *function_data) -{ - struct read_thread_data *thread_data = - (struct read_thread_data *)function_data; - struct epoll_event event_data; - struct epoll_item_private *item_data; - char socket_data; - - /* Handle events until we encounter an error or this thread's 'stop' - condition is set: */ - while (1) { - int result = epoll_wait(thread_data->epoll_set, - &event_data, - 1, /* Number of desired events */ - 1000); /* Timeout in ms */ - if (result < 0) { - /* Breakpoints signal all threads. Ignore that while - debugging: */ - if (errno == EINTR) - continue; - thread_data->status = errno; - return 0; - } else if (thread_data->stop) - return 0; - else if (result == 0) /* Timeout */ - continue; - - /* We need the mutex here because checking for the stop - condition and re-enabling the epoll item need to be done - together as one atomic operation when EPOLL_CTL_DISABLE is - available: */ - item_data = (struct epoll_item_private *)event_data.data.ptr; - pthread_mutex_lock(&item_data->mutex); - - /* Remove the item from the epoll set if we want to stop - handling that event: */ - if (item_data->stop) - delete_item(item_data->index); - else { - /* Clear the data that was written to the other end of - our non-blocking socket: */ - do { - if (read(item_data->fd, &socket_data, 1) < 1) { - if ((errno == EAGAIN) || - (errno == EWOULDBLOCK)) - break; - else - goto error_unlock; - } - } while (item_data->events & EPOLLET); - - /* The item was one-shot, so re-enable it: */ - event_data.events = item_data->events; - if (epoll_ctl(thread_data->epoll_set, - EPOLL_CTL_MOD, - item_data->fd, - &event_data) < 0) - goto error_unlock; - } - - pthread_mutex_unlock(&item_data->mutex); - } - -error_unlock: - thread_data->status = item_data->status = errno; - pthread_mutex_unlock(&item_data->mutex); - return 0; -} - -/* - * A pointer to a write_thread_data structure will be passed as the argument to - * the write thread: - */ -struct write_thread_data { - int stop; - int status; /* Indicates any error encountered by the write thread. */ - int n_fds; - int *fds; -}; - -/* - * The function executed by the write thread. It writes a single byte to each - * socket in turn until the stop condition for this thread is set. If writing to - * a socket would block (i.e. errno was EAGAIN), we leave that socket alone for - * the moment and just move on to the next socket in the list. We don't care - * about the order in which we deliver events to the epoll set. In fact we don't - * care about the data we're writing to the pipes at all; we just want to - * trigger epoll events: - */ -void *write_thread_function(void *function_data) -{ - const char data = 'X'; - int index; - struct write_thread_data *thread_data = - (struct write_thread_data *)function_data; - while (!thread_data->stop) - for (index = 0; - !thread_data->stop && (index < thread_data->n_fds); - ++index) - if ((write(thread_data->fds[index], &data, 1) < 1) && - (errno != EAGAIN) && - (errno != EWOULDBLOCK)) { - thread_data->status = errno; - return; - } -} - -/* - * Arguments are currently ignored: - */ -int main(int argc, char **argv) -{ - const int n_read_threads = 100; - const int n_epoll_items = 500; - int index; - int epoll_set = epoll_create1(0); - struct write_thread_data write_thread_data = { - 0, 0, n_epoll_items, malloc(n_epoll_items * sizeof(int)) - }; - struct read_thread_data *read_thread_data = - malloc(n_read_threads * sizeof(struct read_thread_data)); - pthread_t *read_threads = malloc(n_read_threads * sizeof(pthread_t)); - pthread_t write_thread; - - printf("-----------------\n"); - printf("Runing test_epoll\n"); - printf("-----------------\n"); - - epoll_items = malloc(n_epoll_items * sizeof(struct epoll_item_private)); - - if (epoll_set < 0 || epoll_items == 0 || write_thread_data.fds == 0 || - read_thread_data == 0 || read_threads == 0) - goto error; - - if (sysconf(_SC_NPROCESSORS_ONLN) < 2) { - printf("Error: please run this test on a multi-core system.\n"); - goto error; - } - - /* Create the socket pairs and epoll items: */ - for (index = 0; index < n_epoll_items; ++index) { - int socket_pair[2]; - struct epoll_event event_data; - if (socketpair(AF_UNIX, - SOCK_STREAM | SOCK_NONBLOCK, - 0, - socket_pair) < 0) - goto error; - write_thread_data.fds[index] = socket_pair[0]; - epoll_items[index].index = index; - epoll_items[index].fd = socket_pair[1]; - if (pthread_mutex_init(&epoll_items[index].mutex, NULL) != 0) - goto error; - /* We always use EPOLLONESHOT because this test is currently - structured to demonstrate the need for EPOLL_CTL_DISABLE, - which only produces useful information in the EPOLLONESHOT - case (without EPOLLONESHOT, calling epoll_ctl with - EPOLL_CTL_DISABLE will never return EBUSY). If support for - testing events without EPOLLONESHOT is desired, it should - probably be implemented in a separate unit test. */ - epoll_items[index].events = EPOLLIN | EPOLLONESHOT; - if (index < n_epoll_items / 2) - epoll_items[index].events |= EPOLLET; - epoll_items[index].stop = 0; - epoll_items[index].status = 0; - epoll_items[index].deleted = 0; - event_data.events = epoll_items[index].events; - event_data.data.ptr = &epoll_items[index]; - if (epoll_ctl(epoll_set, - EPOLL_CTL_ADD, - epoll_items[index].fd, - &event_data) < 0) - goto error; - } - - /* Create and start the read threads: */ - for (index = 0; index < n_read_threads; ++index) { - read_thread_data[index].stop = 0; - read_thread_data[index].status = 0; - read_thread_data[index].epoll_set = epoll_set; - if (pthread_create(&read_threads[index], - NULL, - read_thread_function, - &read_thread_data[index]) != 0) - goto error; - } - - if (pthread_create(&write_thread, - NULL, - write_thread_function, - &write_thread_data) != 0) - goto error; - - /* Cancel all event pollers: */ -#ifdef EPOLL_CTL_DISABLE - for (index = 0; index < n_epoll_items; ++index) { - pthread_mutex_lock(&epoll_items[index].mutex); - ++epoll_items[index].stop; - if (epoll_ctl(epoll_set, - EPOLL_CTL_DISABLE, - epoll_items[index].fd, - NULL) == 0) - delete_item(index); - else if (errno != EBUSY) { - pthread_mutex_unlock(&epoll_items[index].mutex); - goto error; - } - /* EBUSY means events were being handled; allow the other thread - to delete the item. */ - pthread_mutex_unlock(&epoll_items[index].mutex); - } -#else - for (index = 0; index < n_epoll_items; ++index) { - pthread_mutex_lock(&epoll_items[index].mutex); - ++epoll_items[index].stop; - pthread_mutex_unlock(&epoll_items[index].mutex); - /* Wait in case a thread running read_thread_function is - currently executing code between epoll_wait and - pthread_mutex_lock with this item. Note that a longer delay - would make double-deletion less likely (at the expense of - performance), but there is no guarantee that any delay would - ever be sufficient. Note also that we delete all event - pollers at once for testing purposes, but in a real-world - environment we are likely to want to be able to cancel event - pollers at arbitrary times. Therefore we can't improve this - situation by just splitting this loop into two loops - (i.e. signal 'stop' for all items, sleep, and then delete all - items). We also can't fix the problem via EPOLL_CTL_DEL - because that command can't prevent the case where some other - thread is executing read_thread_function within the region - mentioned above: */ - usleep(1); - pthread_mutex_lock(&epoll_items[index].mutex); - if (!epoll_items[index].deleted) - delete_item(index); - pthread_mutex_unlock(&epoll_items[index].mutex); - } -#endif - - /* Shut down the read threads: */ - for (index = 0; index < n_read_threads; ++index) - __sync_fetch_and_add(&read_thread_data[index].stop, 1); - for (index = 0; index < n_read_threads; ++index) { - if (pthread_join(read_threads[index], NULL) != 0) - goto error; - if (read_thread_data[index].status) - goto error; - } - - /* Shut down the write thread: */ - __sync_fetch_and_add(&write_thread_data.stop, 1); - if ((pthread_join(write_thread, NULL) != 0) || write_thread_data.status) - goto error; - - /* Check for final error conditions: */ - for (index = 0; index < n_epoll_items; ++index) { - if (epoll_items[index].status != 0) - goto error; - if (pthread_mutex_destroy(&epoll_items[index].mutex) < 0) - goto error; - } - for (index = 0; index < n_epoll_items; ++index) - if (epoll_items[index].deleted != 1) { - printf("Error: item data deleted %1d times.\n", - epoll_items[index].deleted); - goto error; - } - - printf("[PASS]\n"); - return 0; - - error: - printf("[FAIL]\n"); - return errno; -} -- cgit v0.10.2 From 848561d368751a1c0f679b9f045a02944506a801 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Thu, 8 Nov 2012 15:53:37 -0800 Subject: fanotify: fix missing break Anders Blomdell noted in 2010 that Fanotify lost events and provided a test case. Eric Paris confirmed it was a bug and posted a fix to the list https://groups.google.com/forum/?fromgroups=#!topic/linux.kernel/RrJfTfyW2BE but never applied it. Repeated attempts over time to actually get him to apply it have never had a reply from anyone who has raised it So apply it anyway Signed-off-by: Alan Cox Reported-by: Anders Blomdell Cc: Eric Paris Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c index f35794b..a506360 100644 --- a/fs/notify/fanotify/fanotify.c +++ b/fs/notify/fanotify/fanotify.c @@ -21,6 +21,7 @@ static bool should_merge(struct fsnotify_event *old, struct fsnotify_event *new) if ((old->path.mnt == new->path.mnt) && (old->path.dentry == new->path.dentry)) return true; + break; case (FSNOTIFY_EVENT_NONE): return true; default: -- cgit v0.10.2 From b0a8cc58e6b9aaae3045752059e5e6260c0b94bc Mon Sep 17 00:00:00 2001 From: Takamori Yamaguchi Date: Thu, 8 Nov 2012 15:53:39 -0800 Subject: mm: bugfix: set current->reclaim_state to NULL while returning from kswapd() In kswapd(), set current->reclaim_state to NULL before returning, as current->reclaim_state holds reference to variable on kswapd()'s stack. In rare cases, while returning from kswapd() during memory offlining, __free_slab() and freepages() can access the dangling pointer of current->reclaim_state. Signed-off-by: Takamori Yamaguchi Signed-off-by: Aaditya Kumar Acked-by: David Rientjes Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/vmscan.c b/mm/vmscan.c index 2624edc..8b055e9 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -3017,6 +3017,8 @@ static int kswapd(void *p) &balanced_classzone_idx); } } + + current->reclaim_state = NULL; return 0; } -- cgit v0.10.2 From 6893f5675f54d6452aded27f9a1d5e86a3bddcbe Mon Sep 17 00:00:00 2001 From: Fengguang Wu Date: Thu, 8 Nov 2012 15:53:41 -0800 Subject: h8300: add missing L1_CACHE_SHIFT Fix the build error lib/atomic64.c: In function 'lock_addr': lib/atomic64.c:40:11: error: 'L1_CACHE_SHIFT' undeclared (first use in this function) lib/atomic64.c:40:11: note: each undeclared identifier is reported only once for each function it appears in Signed-off-by: Fengguang Wu Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/arch/h8300/include/asm/cache.h b/arch/h8300/include/asm/cache.h index c635028..05887a1 100644 --- a/arch/h8300/include/asm/cache.h +++ b/arch/h8300/include/asm/cache.h @@ -2,7 +2,8 @@ #define __ARCH_H8300_CACHE_H /* bytes per L1 cache line */ -#define L1_CACHE_BYTES 4 +#define L1_CACHE_SHIFT 2 +#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) /* m68k-elf-gcc 2.95.2 doesn't like these */ -- cgit v0.10.2 From cfff2f999d9baa561f20d999c8b83b03f078fb8f Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 9 Nov 2012 09:47:27 +0100 Subject: mac80211: fix memory leak in device registration error path If the cipher suites need to be allocated, but this allocation fails, this leaks the internal scan request. Fix that by going to the correct error handling label. Signed-off-by: Johannes Berg diff --git a/net/mac80211/main.c b/net/mac80211/main.c index c80c449..f57f597 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -871,8 +871,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) local->hw.wiphy->cipher_suites, sizeof(u32) * local->hw.wiphy->n_cipher_suites, GFP_KERNEL); - if (!suites) - return -ENOMEM; + if (!suites) { + result = -ENOMEM; + goto fail_wiphy_register; + } for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { u32 suite = local->hw.wiphy->cipher_suites[r]; if (suite == WLAN_CIPHER_SUITE_WEP40 || -- cgit v0.10.2 From f3f09d5a4462929609342460d756fab2e8151421 Mon Sep 17 00:00:00 2001 From: Kautuk Consul Date: Sat, 31 Mar 2012 08:05:17 -0400 Subject: unicore32/mm/fault.c: Port OOM changes to do_pf Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99 (mm: retry page fault when blocking on disk transfer) and commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb (x86,mm: make pagefault killable) The above commits introduced changes into the x86 pagefault handler for making the page fault handler retryable as well as killable. These changes reduce the mmap_sem hold time, which is crucial during OOM killer invocation. Port these changes to unicore32. Signed-off-by: Kautuk Consul Acked-by: Guan Xuetao diff --git a/arch/unicore32/mm/fault.c b/arch/unicore32/mm/fault.c index 2eeb9c0..f9b5c10 100644 --- a/arch/unicore32/mm/fault.c +++ b/arch/unicore32/mm/fault.c @@ -168,7 +168,7 @@ static inline bool access_error(unsigned int fsr, struct vm_area_struct *vma) } static int __do_pf(struct mm_struct *mm, unsigned long addr, unsigned int fsr, - struct task_struct *tsk) + unsigned int flags, struct task_struct *tsk) { struct vm_area_struct *vma; int fault; @@ -194,14 +194,7 @@ good_area: * If for any reason at all we couldn't handle the fault, make * sure we exit gracefully rather than endlessly redo the fault. */ - fault = handle_mm_fault(mm, vma, addr & PAGE_MASK, - (!(fsr ^ 0x12)) ? FAULT_FLAG_WRITE : 0); - if (unlikely(fault & VM_FAULT_ERROR)) - return fault; - if (fault & VM_FAULT_MAJOR) - tsk->maj_flt++; - else - tsk->min_flt++; + fault = handle_mm_fault(mm, vma, addr & PAGE_MASK, flags); return fault; check_stack: @@ -216,6 +209,8 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs) struct task_struct *tsk; struct mm_struct *mm; int fault, sig, code; + unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE | + ((!(fsr ^ 0x12)) ? FAULT_FLAG_WRITE : 0); tsk = current; mm = tsk->mm; @@ -236,6 +231,7 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs) if (!user_mode(regs) && !search_exception_tables(regs->UCreg_pc)) goto no_context; +retry: down_read(&mm->mmap_sem); } else { /* @@ -251,7 +247,28 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs) #endif } - fault = __do_pf(mm, addr, fsr, tsk); + fault = __do_pf(mm, addr, fsr, flags, tsk); + + /* If we need to retry but a fatal signal is pending, handle the + * signal first. We do not need to release the mmap_sem because + * it would already be released in __lock_page_or_retry in + * mm/filemap.c. */ + if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) + return 0; + + if (!(fault & VM_FAULT_ERROR) && (flags & FAULT_FLAG_ALLOW_RETRY)) { + if (fault & VM_FAULT_MAJOR) + tsk->maj_flt++; + else + tsk->min_flt++; + if (fault & VM_FAULT_RETRY) { + /* Clear FAULT_FLAG_ALLOW_RETRY to avoid any risk + * of starvation. */ + flags &= ~FAULT_FLAG_ALLOW_RETRY; + goto retry; + } + } + up_read(&mm->mmap_sem); /* -- cgit v0.10.2 From 446d141e1c84d34c70592b53443b06533703c324 Mon Sep 17 00:00:00 2001 From: Guan Xuetao Date: Thu, 12 Apr 2012 09:18:46 +0800 Subject: UniCore32 bugfix: add missed CONFIG_ZONE_DMA Because our PCI-bus handler confines dma zone into 128M, we should add CONFIG_ZONE_DMA for all boards. Otherwise, all memory bigger than 128M will be pushed into ZONE_MOVABLE. Cc: Arnd Bergmann Signed-off-by: Liu Guoli Signed-off-by: Guan Xuetao diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig index e5c5473..5b95ba4 100644 --- a/arch/unicore32/Kconfig +++ b/arch/unicore32/Kconfig @@ -64,6 +64,9 @@ config GENERIC_CALIBRATE_DELAY config ARCH_MAY_HAVE_PC_FDC bool +config ZONE_DMA + def_bool y + config NEED_DMA_MAP_STATE def_bool y -- cgit v0.10.2 From 195d4577d1d7ab1f0398b3190547c116b56f435f Mon Sep 17 00:00:00 2001 From: Guan Xuetao Date: Thu, 14 Jun 2012 15:39:48 +0800 Subject: UniCore32-bugfix: fix mismatch return value of __xchg_bad_pointer When disintegrate system.h, I left an error in asm/cmpxchg.h, which will result in following error: arch/unicore32/include/asm/cmpxchg.h: In function '__xchg': arch/unicore32/include/asm/cmpxchg.h:38: error: void value not ignored as it ought to be Signed-off-by: Guan Xuetao diff --git a/arch/unicore32/include/asm/cmpxchg.h b/arch/unicore32/include/asm/cmpxchg.h index df4d5ac..8e797ad 100644 --- a/arch/unicore32/include/asm/cmpxchg.h +++ b/arch/unicore32/include/asm/cmpxchg.h @@ -35,7 +35,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, : "memory", "cc"); break; default: - ret = __xchg_bad_pointer(); + __xchg_bad_pointer(); } return ret; -- cgit v0.10.2 From 10e1e99e55378a65529c48753703c069aebce7af Mon Sep 17 00:00:00 2001 From: Guan Xuetao Date: Thu, 14 Jun 2012 11:38:25 +0800 Subject: UniCore32-bugfix: Remove definitions in asm/bug.h to solve difference between native and cross compiler For kernel/bound.c being compiled by native compiler, it will generate following errors in gcc 4.4.3: CC kernel/bounds.s In file included from include/linux/bug.h:4, from include/linux/page-flags.h:9, from kernel/bounds.c:9: arch/unicore32/include/asm/bug.h:22: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void' arch/unicore32/include/asm/bug.h:23: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void' So, we moved definitions in asm/bug.h to arch/unicore32/kernel/setup.h to solve the problem. Signed-off-by: Guan Xuetao diff --git a/arch/unicore32/include/asm/bug.h b/arch/unicore32/include/asm/bug.h index b1ff8ca..93a56f3 100644 --- a/arch/unicore32/include/asm/bug.h +++ b/arch/unicore32/include/asm/bug.h @@ -19,9 +19,4 @@ extern void die(const char *msg, struct pt_regs *regs, int err); extern void uc32_notify_die(const char *str, struct pt_regs *regs, struct siginfo *info, unsigned long err, unsigned long trap); -extern asmlinkage void __backtrace(void); -extern asmlinkage void c_backtrace(unsigned long fp, int pmode); - -extern void __show_regs(struct pt_regs *); - #endif /* __UNICORE_BUG_H__ */ diff --git a/arch/unicore32/kernel/setup.h b/arch/unicore32/kernel/setup.h index f239550..30f749d 100644 --- a/arch/unicore32/kernel/setup.h +++ b/arch/unicore32/kernel/setup.h @@ -30,4 +30,10 @@ extern char __vectors_start[], __vectors_end[]; extern void kernel_thread_helper(void); extern void __init early_signal_init(void); + +extern asmlinkage void __backtrace(void); +extern asmlinkage void c_backtrace(unsigned long fp, int pmode); + +extern void __show_regs(struct pt_regs *); + #endif -- cgit v0.10.2 From e8ce15a6d7ecdbabd8d04d78e065a2706459194f Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 9 Oct 2012 09:47:48 +0100 Subject: UAPI: (Scripted) Disintegrate arch/unicore32/include/asm Signed-off-by: David Howells Acked-by: Arnd Bergmann Acked-by: Thomas Gleixner Acked-by: Michael Kerrisk Acked-by: Paul E. McKenney Acked-by: Dave Jones diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild index c910c98..601e92f 100644 --- a/arch/unicore32/include/asm/Kbuild +++ b/arch/unicore32/include/asm/Kbuild @@ -1,4 +1,3 @@ -include include/asm-generic/Kbuild.asm generic-y += atomic.h generic-y += auxvec.h diff --git a/arch/unicore32/include/asm/byteorder.h b/arch/unicore32/include/asm/byteorder.h deleted file mode 100644 index ebe1b3f..0000000 --- a/arch/unicore32/include/asm/byteorder.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * linux/arch/unicore32/include/asm/byteorder.h - * - * Code specific to PKUnity SoC and UniCore ISA - * - * Copyright (C) 2001-2010 GUAN Xue-tao - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * UniCore ONLY support Little Endian mode, the data bus is connected such - * that byte accesses appear as: - * 0 = d0...d7, 1 = d8...d15, 2 = d16...d23, 3 = d24...d31 - * and word accesses (data or instruction) appear as: - * d0...d31 - */ -#ifndef __UNICORE_BYTEORDER_H__ -#define __UNICORE_BYTEORDER_H__ - -#include - -#endif - diff --git a/arch/unicore32/include/asm/kvm_para.h b/arch/unicore32/include/asm/kvm_para.h deleted file mode 100644 index 14fab8f..0000000 --- a/arch/unicore32/include/asm/kvm_para.h +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/arch/unicore32/include/asm/ptrace.h b/arch/unicore32/include/asm/ptrace.h index b9caf9b..726749d 100644 --- a/arch/unicore32/include/asm/ptrace.h +++ b/arch/unicore32/include/asm/ptrace.h @@ -12,80 +12,10 @@ #ifndef __UNICORE_PTRACE_H__ #define __UNICORE_PTRACE_H__ -#define PTRACE_GET_THREAD_AREA 22 - -/* - * PSR bits - */ -#define USER_MODE 0x00000010 -#define REAL_MODE 0x00000011 -#define INTR_MODE 0x00000012 -#define PRIV_MODE 0x00000013 -#define ABRT_MODE 0x00000017 -#define EXTN_MODE 0x0000001b -#define SUSR_MODE 0x0000001f -#define MODE_MASK 0x0000001f -#define PSR_R_BIT 0x00000040 -#define PSR_I_BIT 0x00000080 -#define PSR_V_BIT 0x10000000 -#define PSR_C_BIT 0x20000000 -#define PSR_Z_BIT 0x40000000 -#define PSR_S_BIT 0x80000000 - -/* - * Groups of PSR bits - */ -#define PSR_f 0xff000000 /* Flags */ -#define PSR_c 0x000000ff /* Control */ +#include #ifndef __ASSEMBLY__ -/* - * This struct defines the way the registers are stored on the - * stack during a system call. Note that sizeof(struct pt_regs) - * has to be a multiple of 8. - */ -struct pt_regs { - unsigned long uregs[34]; -}; - -#define UCreg_asr uregs[32] -#define UCreg_pc uregs[31] -#define UCreg_lr uregs[30] -#define UCreg_sp uregs[29] -#define UCreg_ip uregs[28] -#define UCreg_fp uregs[27] -#define UCreg_26 uregs[26] -#define UCreg_25 uregs[25] -#define UCreg_24 uregs[24] -#define UCreg_23 uregs[23] -#define UCreg_22 uregs[22] -#define UCreg_21 uregs[21] -#define UCreg_20 uregs[20] -#define UCreg_19 uregs[19] -#define UCreg_18 uregs[18] -#define UCreg_17 uregs[17] -#define UCreg_16 uregs[16] -#define UCreg_15 uregs[15] -#define UCreg_14 uregs[14] -#define UCreg_13 uregs[13] -#define UCreg_12 uregs[12] -#define UCreg_11 uregs[11] -#define UCreg_10 uregs[10] -#define UCreg_09 uregs[9] -#define UCreg_08 uregs[8] -#define UCreg_07 uregs[7] -#define UCreg_06 uregs[6] -#define UCreg_05 uregs[5] -#define UCreg_04 uregs[4] -#define UCreg_03 uregs[3] -#define UCreg_02 uregs[2] -#define UCreg_01 uregs[1] -#define UCreg_00 uregs[0] -#define UCreg_ORIG_00 uregs[33] - -#ifdef __KERNEL__ - #define user_mode(regs) \ (processor_mode(regs) == USER_MODE) @@ -125,9 +55,5 @@ static inline int valid_user_regs(struct pt_regs *regs) #define instruction_pointer(regs) ((regs)->UCreg_pc) -#endif /* __KERNEL__ */ - #endif /* __ASSEMBLY__ */ - #endif - diff --git a/arch/unicore32/include/asm/sigcontext.h b/arch/unicore32/include/asm/sigcontext.h deleted file mode 100644 index 6a2d767..0000000 --- a/arch/unicore32/include/asm/sigcontext.h +++ /dev/null @@ -1,29 +0,0 @@ -/* - * linux/arch/unicore32/include/asm/sigcontext.h - * - * Code specific to PKUnity SoC and UniCore ISA - * - * Copyright (C) 2001-2010 GUAN Xue-tao - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#ifndef __UNICORE_SIGCONTEXT_H__ -#define __UNICORE_SIGCONTEXT_H__ - -#include -/* - * Signal context structure - contains all info to do with the state - * before the signal handler was invoked. Note: only add new entries - * to the end of the structure. - */ -struct sigcontext { - unsigned long trap_no; - unsigned long error_code; - unsigned long oldmask; - unsigned long fault_address; - struct pt_regs regs; -}; - -#endif diff --git a/arch/unicore32/include/asm/unistd.h b/arch/unicore32/include/asm/unistd.h deleted file mode 100644 index 2abcf61..0000000 --- a/arch/unicore32/include/asm/unistd.h +++ /dev/null @@ -1,14 +0,0 @@ -/* - * linux/arch/unicore32/include/asm/unistd.h - * - * Code specific to PKUnity SoC and UniCore ISA - * - * Copyright (C) 2001-2010 GUAN Xue-tao - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* Use the standard ABI for syscalls. */ -#include diff --git a/arch/unicore32/include/uapi/asm/Kbuild b/arch/unicore32/include/uapi/asm/Kbuild index baebb3d..a44b1c4 100644 --- a/arch/unicore32/include/uapi/asm/Kbuild +++ b/arch/unicore32/include/uapi/asm/Kbuild @@ -1,3 +1,8 @@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +header-y += byteorder.h +header-y += kvm_para.h +header-y += ptrace.h +header-y += sigcontext.h +header-y += unistd.h diff --git a/arch/unicore32/include/uapi/asm/byteorder.h b/arch/unicore32/include/uapi/asm/byteorder.h new file mode 100644 index 0000000..ebe1b3f --- /dev/null +++ b/arch/unicore32/include/uapi/asm/byteorder.h @@ -0,0 +1,24 @@ +/* + * linux/arch/unicore32/include/asm/byteorder.h + * + * Code specific to PKUnity SoC and UniCore ISA + * + * Copyright (C) 2001-2010 GUAN Xue-tao + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * UniCore ONLY support Little Endian mode, the data bus is connected such + * that byte accesses appear as: + * 0 = d0...d7, 1 = d8...d15, 2 = d16...d23, 3 = d24...d31 + * and word accesses (data or instruction) appear as: + * d0...d31 + */ +#ifndef __UNICORE_BYTEORDER_H__ +#define __UNICORE_BYTEORDER_H__ + +#include + +#endif + diff --git a/arch/unicore32/include/uapi/asm/kvm_para.h b/arch/unicore32/include/uapi/asm/kvm_para.h new file mode 100644 index 0000000..14fab8f --- /dev/null +++ b/arch/unicore32/include/uapi/asm/kvm_para.h @@ -0,0 +1 @@ +#include diff --git a/arch/unicore32/include/uapi/asm/ptrace.h b/arch/unicore32/include/uapi/asm/ptrace.h new file mode 100644 index 0000000..187aa2e --- /dev/null +++ b/arch/unicore32/include/uapi/asm/ptrace.h @@ -0,0 +1,90 @@ +/* + * linux/arch/unicore32/include/asm/ptrace.h + * + * Code specific to PKUnity SoC and UniCore ISA + * + * Copyright (C) 2001-2010 GUAN Xue-tao + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef _UAPI__UNICORE_PTRACE_H__ +#define _UAPI__UNICORE_PTRACE_H__ + +#define PTRACE_GET_THREAD_AREA 22 + +/* + * PSR bits + */ +#define USER_MODE 0x00000010 +#define REAL_MODE 0x00000011 +#define INTR_MODE 0x00000012 +#define PRIV_MODE 0x00000013 +#define ABRT_MODE 0x00000017 +#define EXTN_MODE 0x0000001b +#define SUSR_MODE 0x0000001f +#define MODE_MASK 0x0000001f +#define PSR_R_BIT 0x00000040 +#define PSR_I_BIT 0x00000080 +#define PSR_V_BIT 0x10000000 +#define PSR_C_BIT 0x20000000 +#define PSR_Z_BIT 0x40000000 +#define PSR_S_BIT 0x80000000 + +/* + * Groups of PSR bits + */ +#define PSR_f 0xff000000 /* Flags */ +#define PSR_c 0x000000ff /* Control */ + +#ifndef __ASSEMBLY__ + +/* + * This struct defines the way the registers are stored on the + * stack during a system call. Note that sizeof(struct pt_regs) + * has to be a multiple of 8. + */ +struct pt_regs { + unsigned long uregs[34]; +}; + +#define UCreg_asr uregs[32] +#define UCreg_pc uregs[31] +#define UCreg_lr uregs[30] +#define UCreg_sp uregs[29] +#define UCreg_ip uregs[28] +#define UCreg_fp uregs[27] +#define UCreg_26 uregs[26] +#define UCreg_25 uregs[25] +#define UCreg_24 uregs[24] +#define UCreg_23 uregs[23] +#define UCreg_22 uregs[22] +#define UCreg_21 uregs[21] +#define UCreg_20 uregs[20] +#define UCreg_19 uregs[19] +#define UCreg_18 uregs[18] +#define UCreg_17 uregs[17] +#define UCreg_16 uregs[16] +#define UCreg_15 uregs[15] +#define UCreg_14 uregs[14] +#define UCreg_13 uregs[13] +#define UCreg_12 uregs[12] +#define UCreg_11 uregs[11] +#define UCreg_10 uregs[10] +#define UCreg_09 uregs[9] +#define UCreg_08 uregs[8] +#define UCreg_07 uregs[7] +#define UCreg_06 uregs[6] +#define UCreg_05 uregs[5] +#define UCreg_04 uregs[4] +#define UCreg_03 uregs[3] +#define UCreg_02 uregs[2] +#define UCreg_01 uregs[1] +#define UCreg_00 uregs[0] +#define UCreg_ORIG_00 uregs[33] + + +#endif /* __ASSEMBLY__ */ + +#endif /* _UAPI__UNICORE_PTRACE_H__ */ diff --git a/arch/unicore32/include/uapi/asm/sigcontext.h b/arch/unicore32/include/uapi/asm/sigcontext.h new file mode 100644 index 0000000..6a2d767 --- /dev/null +++ b/arch/unicore32/include/uapi/asm/sigcontext.h @@ -0,0 +1,29 @@ +/* + * linux/arch/unicore32/include/asm/sigcontext.h + * + * Code specific to PKUnity SoC and UniCore ISA + * + * Copyright (C) 2001-2010 GUAN Xue-tao + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __UNICORE_SIGCONTEXT_H__ +#define __UNICORE_SIGCONTEXT_H__ + +#include +/* + * Signal context structure - contains all info to do with the state + * before the signal handler was invoked. Note: only add new entries + * to the end of the structure. + */ +struct sigcontext { + unsigned long trap_no; + unsigned long error_code; + unsigned long oldmask; + unsigned long fault_address; + struct pt_regs regs; +}; + +#endif diff --git a/arch/unicore32/include/uapi/asm/unistd.h b/arch/unicore32/include/uapi/asm/unistd.h new file mode 100644 index 0000000..2abcf61 --- /dev/null +++ b/arch/unicore32/include/uapi/asm/unistd.h @@ -0,0 +1,14 @@ +/* + * linux/arch/unicore32/include/asm/unistd.h + * + * Code specific to PKUnity SoC and UniCore ISA + * + * Copyright (C) 2001-2010 GUAN Xue-tao + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* Use the standard ABI for syscalls. */ +#include -- cgit v0.10.2 From ddd2d384b019d1733335c0fca7eccae3c29d2a14 Mon Sep 17 00:00:00 2001 From: Guan Xuetao Date: Mon, 15 Oct 2012 14:41:36 +0800 Subject: unicore32: Use Kbuild infrastructure for kvm_para.h All the headers but kvm_para.h use the Kbuild infrastructure to get to the asm-generic headers. Cc: linux-kbuild@vger.kernel.org Signed-off-by: Steven Rostedt Signed-off-by: Guan Xuetao diff --git a/arch/unicore32/include/uapi/asm/Kbuild b/arch/unicore32/include/uapi/asm/Kbuild index a44b1c4..0514d7a 100644 --- a/arch/unicore32/include/uapi/asm/Kbuild +++ b/arch/unicore32/include/uapi/asm/Kbuild @@ -6,3 +6,5 @@ header-y += kvm_para.h header-y += ptrace.h header-y += sigcontext.h header-y += unistd.h + +generic-y += kvm_para.h diff --git a/arch/unicore32/include/uapi/asm/kvm_para.h b/arch/unicore32/include/uapi/asm/kvm_para.h deleted file mode 100644 index 14fab8f..0000000 --- a/arch/unicore32/include/uapi/asm/kvm_para.h +++ /dev/null @@ -1 +0,0 @@ -#include -- cgit v0.10.2 From 38e993535edda089a6956bf12a1dde2602649de9 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 13 Oct 2012 17:35:21 -0400 Subject: unicore32: switch to generic kernel_thread()/kernel_execve() Signed-off-by: Al Viro Acked-and-Tested-by: Guan Xuetao diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig index 5b95ba4..fda37c9 100644 --- a/arch/unicore32/Kconfig +++ b/arch/unicore32/Kconfig @@ -16,6 +16,8 @@ config UNICORE32 select ARCH_WANT_FRAME_POINTERS select GENERIC_IOMAP select MODULES_USE_ELF_REL + select GENERIC_KERNEL_THREAD + select GENERIC_KERNEL_EXECVE help UniCore-32 is 32-bit Instruction Set Architecture, including a series of low-power-consumption RISC chip diff --git a/arch/unicore32/include/asm/processor.h b/arch/unicore32/include/asm/processor.h index 14382cb..4eaa421 100644 --- a/arch/unicore32/include/asm/processor.h +++ b/arch/unicore32/include/asm/processor.h @@ -72,11 +72,6 @@ unsigned long get_wchan(struct task_struct *p); #define cpu_relax() barrier() -/* - * Create a new kernel thread - */ -extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); - #define task_pt_regs(p) \ ((struct pt_regs *)(THREAD_START_SP + task_stack_page(p)) - 1) diff --git a/arch/unicore32/kernel/entry.S b/arch/unicore32/kernel/entry.S index dcb87ab..32648c9 100644 --- a/arch/unicore32/kernel/entry.S +++ b/arch/unicore32/kernel/entry.S @@ -573,17 +573,16 @@ ENDPROC(ret_to_user) */ ENTRY(ret_from_fork) b.l schedule_tail - get_thread_info tsk - ldw r1, [tsk+], #TI_FLAGS @ check for syscall tracing - mov why, #1 - cand.a r1, #_TIF_SYSCALL_TRACE @ are we tracing syscalls? - beq ret_slow_syscall - mov r1, sp - mov r0, #1 @ trace exit [IP = 1] - b.l syscall_trace b ret_slow_syscall ENDPROC(ret_from_fork) +ENTRY(ret_from_kernel_thread) + b.l schedule_tail + mov r0, r5 + adr lr, ret_slow_syscall + mov pc, r4 +ENDPROC(ret_from_kernel_thread) + /*============================================================================= * SWI handler *----------------------------------------------------------------------------- diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c index b008586..a8fe265 100644 --- a/arch/unicore32/kernel/process.c +++ b/arch/unicore32/kernel/process.c @@ -258,6 +258,7 @@ void release_thread(struct task_struct *dead_task) } asmlinkage void ret_from_fork(void) __asm__("ret_from_fork"); +asmlinkage void ret_from_kernel_thread(void) __asm__("ret_from_kernel_thread"); int copy_thread(unsigned long clone_flags, unsigned long stack_start, @@ -266,17 +267,22 @@ copy_thread(unsigned long clone_flags, unsigned long stack_start, struct thread_info *thread = task_thread_info(p); struct pt_regs *childregs = task_pt_regs(p); - *childregs = *regs; - childregs->UCreg_00 = 0; - childregs->UCreg_sp = stack_start; - memset(&thread->cpu_context, 0, sizeof(struct cpu_context_save)); thread->cpu_context.sp = (unsigned long)childregs; - thread->cpu_context.pc = (unsigned long)ret_from_fork; - - if (clone_flags & CLONE_SETTLS) - childregs->UCreg_16 = regs->UCreg_03; + if (unlikely(!regs)) { + thread->cpu_context.pc = (unsigned long)ret_from_kernel_thread; + thread->cpu_context.r4 = stack_start; + thread->cpu_context.r5 = stk_sz; + memset(childregs, 0, sizeof(struct pt_regs)); + } else { + thread->cpu_context.pc = (unsigned long)ret_from_fork; + *childregs = *regs; + childregs->UCreg_00 = 0; + childregs->UCreg_sp = stack_start; + if (clone_flags & CLONE_SETTLS) + childregs->UCreg_16 = regs->UCreg_03; + } return 0; } @@ -305,42 +311,6 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fp) } EXPORT_SYMBOL(dump_fpu); -/* - * Shuffle the argument into the correct register before calling the - * thread function. r1 is the thread argument, r2 is the pointer to - * the thread function, and r3 points to the exit function. - */ -asm(".pushsection .text\n" -" .align\n" -" .type kernel_thread_helper, #function\n" -"kernel_thread_helper:\n" -" mov.a asr, r7\n" -" mov r0, r4\n" -" mov lr, r6\n" -" mov pc, r5\n" -" .size kernel_thread_helper, . - kernel_thread_helper\n" -" .popsection"); - -/* - * Create a kernel thread. - */ -pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags) -{ - struct pt_regs regs; - - memset(®s, 0, sizeof(regs)); - - regs.UCreg_04 = (unsigned long)arg; - regs.UCreg_05 = (unsigned long)fn; - regs.UCreg_06 = (unsigned long)do_exit; - regs.UCreg_07 = PRIV_MODE; - regs.UCreg_pc = (unsigned long)kernel_thread_helper; - regs.UCreg_asr = regs.UCreg_07 | PSR_I_BIT; - - return do_fork(flags|CLONE_VM|CLONE_UNTRACED, 0, ®s, 0, NULL, NULL); -} -EXPORT_SYMBOL(kernel_thread); - unsigned long get_wchan(struct task_struct *p) { struct stackframe frame; diff --git a/arch/unicore32/kernel/sys.c b/arch/unicore32/kernel/sys.c index fabdee9..8b6e4cc 100644 --- a/arch/unicore32/kernel/sys.c +++ b/arch/unicore32/kernel/sys.c @@ -63,48 +63,6 @@ out: return error; } -int kernel_execve(const char *filename, - const char *const argv[], - const char *const envp[]) -{ - struct pt_regs regs; - int ret; - - memset(®s, 0, sizeof(struct pt_regs)); - ret = do_execve(filename, - (const char __user *const __user *)argv, - (const char __user *const __user *)envp, ®s); - if (ret < 0) - goto out; - - /* - * Save argc to the register structure for userspace. - */ - regs.UCreg_00 = ret; - - /* - * We were successful. We won't be returning to our caller, but - * instead to user space by manipulating the kernel stack. - */ - asm("add r0, %0, %1\n\t" - "mov r1, %2\n\t" - "mov r2, %3\n\t" - "mov r22, #0\n\t" /* not a syscall */ - "mov r23, %0\n\t" /* thread structure */ - "b.l memmove\n\t" /* copy regs to top of stack */ - "mov sp, r0\n\t" /* reposition stack pointer */ - "b ret_to_user" - : - : "r" (current_thread_info()), - "Ir" (THREAD_START_SP - sizeof(regs)), - "r" (®s), - "Ir" (sizeof(regs)) - : "r0", "r1", "r2", "r3", "ip", "lr", "memory"); - - out: - return ret; -} - /* Note: used by the compat code even in 64-bit Linux. */ SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len, unsigned long, prot, unsigned long, flags, -- cgit v0.10.2 From 60541d778e536455970281de25b2476e01c03aef Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 13 Oct 2012 17:36:40 -0400 Subject: unicore32: switch to generic sys_execve() Signed-off-by: Al Viro Acked-and-Tested-by: Guan Xuetao diff --git a/arch/unicore32/include/uapi/asm/unistd.h b/arch/unicore32/include/uapi/asm/unistd.h index 2abcf61..d18a3be8 100644 --- a/arch/unicore32/include/uapi/asm/unistd.h +++ b/arch/unicore32/include/uapi/asm/unistd.h @@ -12,3 +12,4 @@ /* Use the standard ABI for syscalls. */ #include +#define __ARCH_WANT_SYS_EXECVE diff --git a/arch/unicore32/kernel/entry.S b/arch/unicore32/kernel/entry.S index 32648c9..7049350 100644 --- a/arch/unicore32/kernel/entry.S +++ b/arch/unicore32/kernel/entry.S @@ -668,11 +668,6 @@ __cr_alignment: #endif .ltorg -ENTRY(sys_execve) - add r3, sp, #S_OFF - b __sys_execve -ENDPROC(sys_execve) - ENTRY(sys_clone) add ip, sp, #S_OFF stw ip, [sp+], #4 diff --git a/arch/unicore32/kernel/sys.c b/arch/unicore32/kernel/sys.c index 8b6e4cc..9680134 100644 --- a/arch/unicore32/kernel/sys.c +++ b/arch/unicore32/kernel/sys.c @@ -42,27 +42,6 @@ asmlinkage long __sys_clone(unsigned long clone_flags, unsigned long newsp, parent_tid, child_tid); } -/* sys_execve() executes a new program. - * This is called indirectly via a small wrapper - */ -asmlinkage long __sys_execve(const char __user *filename, - const char __user *const __user *argv, - const char __user *const __user *envp, - struct pt_regs *regs) -{ - int error; - struct filename *fn; - - fn = getname(filename); - error = PTR_ERR(fn); - if (IS_ERR(fn)) - goto out; - error = do_execve(fn->name, argv, envp, regs); - putname(fn); -out: - return error; -} - /* Note: used by the compat code even in 64-bit Linux. */ SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len, unsigned long, prot, unsigned long, flags, -- cgit v0.10.2 From c284464658acab50c67ff65ff3dc9215a0231ad2 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Tue, 23 Oct 2012 13:01:43 -0700 Subject: arch/unicore32: remove CONFIG_EXPERIMENTAL This config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it. CC: Guan Xuetao Signed-off-by: Kees Cook Acked-by: Guan Xuetao diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig index fda37c9..c4fbb21 100644 --- a/arch/unicore32/Kconfig +++ b/arch/unicore32/Kconfig @@ -221,7 +221,7 @@ config PUV3_GPIO bool depends on !ARCH_FPGA select GENERIC_GPIO - select GPIO_SYSFS if EXPERIMENTAL + select GPIO_SYSFS default y if PUV3_NB0916 -- cgit v0.10.2 From 4870639a754991a52fc8f4ba82f0d9c247c33659 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Wed, 7 Nov 2012 12:54:21 +0100 Subject: MIPS: compat: Fix use of TIF_32BIT_ADDR vs _TIF_32BIT_ADDR Signed-off-by: Ralf Baechle diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h index 8debe9e..d8323ea 100644 --- a/arch/mips/include/asm/thread_info.h +++ b/arch/mips/include/asm/thread_info.h @@ -115,7 +115,7 @@ register struct thread_info *__current_thread_info __asm__("$28"); #ifdef CONFIG_MIPS32_O32 #define TIF_32BIT TIF_32BIT_REGS #elif defined(CONFIG_MIPS32_N32) -#define TIF_32BIT _TIF_32BIT_ADDR +#define TIF_32BIT TIF_32BIT_ADDR #endif /* CONFIG_MIPS32_O32 */ #define _TIF_SYSCALL_TRACE (1< Date: Thu, 8 Nov 2012 23:59:31 +0100 Subject: MIPS: compat: Implement is_compat_task() by testing for 32-bit address space. So far is_compat_task() was testing for 32-bit registers if O32 support was enabled and if O32 support was disabled but N32 enabled it was testing for 32-bit address space. So if both O32 and N32 were enabled a N32 task was not considered a compat task, whops. This still leaves potential cases where O32 and N32 need different treatment unsolved. But that's another commit. Signed-off-by: Ralf Baechle diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h index 58277e0..3c5d146 100644 --- a/arch/mips/include/asm/compat.h +++ b/arch/mips/include/asm/compat.h @@ -290,7 +290,7 @@ struct compat_shmid64_ds { static inline int is_compat_task(void) { - return test_thread_flag(TIF_32BIT); + return test_thread_flag(TIF_32BIT_ADDR); } #endif /* _ASM_COMPAT_H */ -- cgit v0.10.2 From 34d875d7b579baab2f2f6dfd8e8533602d9dbf33 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Fri, 9 Nov 2012 00:28:59 +0100 Subject: MIPS: compat: Delete now unused TIF_32BIT. Signed-off-by: Ralf Baechle diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h index d8323ea..18806a5 100644 --- a/arch/mips/include/asm/thread_info.h +++ b/arch/mips/include/asm/thread_info.h @@ -112,12 +112,6 @@ register struct thread_info *__current_thread_info __asm__("$28"); #define TIF_LOAD_WATCH 25 /* If set, load watch registers */ #define TIF_SYSCALL_TRACE 31 /* syscall trace active */ -#ifdef CONFIG_MIPS32_O32 -#define TIF_32BIT TIF_32BIT_REGS -#elif defined(CONFIG_MIPS32_N32) -#define TIF_32BIT TIF_32BIT_ADDR -#endif /* CONFIG_MIPS32_O32 */ - #define _TIF_SYSCALL_TRACE (1< Date: Thu, 6 Sep 2012 11:36:54 -0400 Subject: MIPS: bitops.h: Change use of 'unsigned short' to 'int' [ralf@linux-mips.org: No functional change but it's consistent with how use types elsewhere in the code.] Signed-off-by: Jim Quinlan Cc: linux-mips@linux-mips.org Cc: David Daney Cc: Kevin Cernekee cernekee@gmail.com Cc: Jim Quinlan Patchwork: https://patchwork.linux-mips.org/patch/4319/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h index 82ad35c..455664c 100644 --- a/arch/mips/include/asm/bitops.h +++ b/arch/mips/include/asm/bitops.h @@ -57,7 +57,7 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr) { unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG); - unsigned short bit = nr & SZLONG_MASK; + int bit = nr & SZLONG_MASK; unsigned long temp; if (kernel_uses_llsc && R10000_LLSC_WAR) { @@ -118,7 +118,7 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr) static inline void clear_bit(unsigned long nr, volatile unsigned long *addr) { unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG); - unsigned short bit = nr & SZLONG_MASK; + int bit = nr & SZLONG_MASK; unsigned long temp; if (kernel_uses_llsc && R10000_LLSC_WAR) { @@ -191,7 +191,7 @@ static inline void clear_bit_unlock(unsigned long nr, volatile unsigned long *ad */ static inline void change_bit(unsigned long nr, volatile unsigned long *addr) { - unsigned short bit = nr & SZLONG_MASK; + int bit = nr & SZLONG_MASK; if (kernel_uses_llsc && R10000_LLSC_WAR) { unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG); @@ -244,7 +244,7 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr) static inline int test_and_set_bit(unsigned long nr, volatile unsigned long *addr) { - unsigned short bit = nr & SZLONG_MASK; + int bit = nr & SZLONG_MASK; unsigned long res; smp_mb__before_llsc(); @@ -310,7 +310,7 @@ static inline int test_and_set_bit(unsigned long nr, static inline int test_and_set_bit_lock(unsigned long nr, volatile unsigned long *addr) { - unsigned short bit = nr & SZLONG_MASK; + int bit = nr & SZLONG_MASK; unsigned long res; if (kernel_uses_llsc && R10000_LLSC_WAR) { @@ -373,7 +373,7 @@ static inline int test_and_set_bit_lock(unsigned long nr, static inline int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr) { - unsigned short bit = nr & SZLONG_MASK; + int bit = nr & SZLONG_MASK; unsigned long res; smp_mb__before_llsc(); @@ -457,7 +457,7 @@ static inline int test_and_clear_bit(unsigned long nr, static inline int test_and_change_bit(unsigned long nr, volatile unsigned long *addr) { - unsigned short bit = nr & SZLONG_MASK; + int bit = nr & SZLONG_MASK; unsigned long res; smp_mb__before_llsc(); -- cgit v0.10.2 From 92d11594f688c8b55b51e80f2eac4417396237a4 Mon Sep 17 00:00:00 2001 From: Jim Quinlan Date: Thu, 6 Sep 2012 11:36:55 -0400 Subject: MIPS: Remove irqflags.h dependency from bitops.h The "else clause" of most functions in bitops.h invoked raw_local_irq_{save,restore}() and in doing so had a dependency on irqflags.h. This fix moves said code to bitops.c, removing the dependency. Signed-off-by: Jim Quinlan Cc: linux-mips@linux-mips.org Cc: David Daney Cc: Kevin Cernekee cernekee@gmail.com Cc: Jim Quinlan Patchwork: https://patchwork.linux-mips.org/patch/4320/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/cavium-octeon/executive/cvmx-l2c.c b/arch/mips/cavium-octeon/executive/cvmx-l2c.c index d38246e..9f883bf 100644 --- a/arch/mips/cavium-octeon/executive/cvmx-l2c.c +++ b/arch/mips/cavium-octeon/executive/cvmx-l2c.c @@ -30,6 +30,7 @@ * measurement, and debugging facilities. */ +#include #include #include #include diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h index 455664c..46ac73a 100644 --- a/arch/mips/include/asm/bitops.h +++ b/arch/mips/include/asm/bitops.h @@ -14,7 +14,6 @@ #endif #include -#include #include #include #include /* sigh ... */ @@ -44,6 +43,24 @@ #define smp_mb__before_clear_bit() smp_mb__before_llsc() #define smp_mb__after_clear_bit() smp_llsc_mb() + +/* + * These are the "slower" versions of the functions and are in bitops.c. + * These functions call raw_local_irq_{save,restore}(). + */ +void __mips_set_bit(unsigned long nr, volatile unsigned long *addr); +void __mips_clear_bit(unsigned long nr, volatile unsigned long *addr); +void __mips_change_bit(unsigned long nr, volatile unsigned long *addr); +int __mips_test_and_set_bit(unsigned long nr, + volatile unsigned long *addr); +int __mips_test_and_set_bit_lock(unsigned long nr, + volatile unsigned long *addr); +int __mips_test_and_clear_bit(unsigned long nr, + volatile unsigned long *addr); +int __mips_test_and_change_bit(unsigned long nr, + volatile unsigned long *addr); + + /* * set_bit - Atomically set a bit in memory * @nr: the bit to set @@ -92,17 +109,8 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr) : "=&r" (temp), "+m" (*m) : "ir" (1UL << bit)); } while (unlikely(!temp)); - } else { - volatile unsigned long *a = addr; - unsigned long mask; - unsigned long flags; - - a += nr >> SZLONG_LOG; - mask = 1UL << bit; - raw_local_irq_save(flags); - *a |= mask; - raw_local_irq_restore(flags); - } + } else + __mips_set_bit(nr, addr); } /* @@ -153,17 +161,8 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr) : "=&r" (temp), "+m" (*m) : "ir" (~(1UL << bit))); } while (unlikely(!temp)); - } else { - volatile unsigned long *a = addr; - unsigned long mask; - unsigned long flags; - - a += nr >> SZLONG_LOG; - mask = 1UL << bit; - raw_local_irq_save(flags); - *a &= ~mask; - raw_local_irq_restore(flags); - } + } else + __mips_clear_bit(nr, addr); } /* @@ -220,17 +219,8 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr) : "=&r" (temp), "+m" (*m) : "ir" (1UL << bit)); } while (unlikely(!temp)); - } else { - volatile unsigned long *a = addr; - unsigned long mask; - unsigned long flags; - - a += nr >> SZLONG_LOG; - mask = 1UL << bit; - raw_local_irq_save(flags); - *a ^= mask; - raw_local_irq_restore(flags); - } + } else + __mips_change_bit(nr, addr); } /* @@ -281,18 +271,8 @@ static inline int test_and_set_bit(unsigned long nr, } while (unlikely(!res)); res = temp & (1UL << bit); - } else { - volatile unsigned long *a = addr; - unsigned long mask; - unsigned long flags; - - a += nr >> SZLONG_LOG; - mask = 1UL << bit; - raw_local_irq_save(flags); - res = (mask & *a); - *a |= mask; - raw_local_irq_restore(flags); - } + } else + res = __mips_test_and_set_bit(nr, addr); smp_llsc_mb(); @@ -345,18 +325,8 @@ static inline int test_and_set_bit_lock(unsigned long nr, } while (unlikely(!res)); res = temp & (1UL << bit); - } else { - volatile unsigned long *a = addr; - unsigned long mask; - unsigned long flags; - - a += nr >> SZLONG_LOG; - mask = 1UL << bit; - raw_local_irq_save(flags); - res = (mask & *a); - *a |= mask; - raw_local_irq_restore(flags); - } + } else + res = __mips_test_and_set_bit_lock(nr, addr); smp_llsc_mb(); @@ -428,18 +398,8 @@ static inline int test_and_clear_bit(unsigned long nr, } while (unlikely(!res)); res = temp & (1UL << bit); - } else { - volatile unsigned long *a = addr; - unsigned long mask; - unsigned long flags; - - a += nr >> SZLONG_LOG; - mask = 1UL << bit; - raw_local_irq_save(flags); - res = (mask & *a); - *a &= ~mask; - raw_local_irq_restore(flags); - } + } else + res = __mips_test_and_clear_bit(nr, addr); smp_llsc_mb(); @@ -494,18 +454,8 @@ static inline int test_and_change_bit(unsigned long nr, } while (unlikely(!res)); res = temp & (1UL << bit); - } else { - volatile unsigned long *a = addr; - unsigned long mask; - unsigned long flags; - - a += nr >> SZLONG_LOG; - mask = 1UL << bit; - raw_local_irq_save(flags); - res = (mask & *a); - *a ^= mask; - raw_local_irq_restore(flags); - } + } else + res = __mips_test_and_change_bit(nr, addr); smp_llsc_mb(); diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h index 29d9c23..ff2e034 100644 --- a/arch/mips/include/asm/io.h +++ b/arch/mips/include/asm/io.h @@ -15,6 +15,7 @@ #include #include #include +#include #include #include diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile index c4a82e8..a7b8937 100644 --- a/arch/mips/lib/Makefile +++ b/arch/mips/lib/Makefile @@ -2,7 +2,7 @@ # Makefile for MIPS-specific library files.. # -lib-y += csum_partial.o delay.o memcpy.o memset.o \ +lib-y += bitops.o csum_partial.o delay.o memcpy.o memset.o \ strlen_user.o strncpy_user.o strnlen_user.o uncached.o obj-y += iomap.o diff --git a/arch/mips/lib/bitops.c b/arch/mips/lib/bitops.c new file mode 100644 index 0000000..239a9c9 --- /dev/null +++ b/arch/mips/lib/bitops.c @@ -0,0 +1,179 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (c) 1994-1997, 99, 2000, 06, 07 Ralf Baechle (ralf@linux-mips.org) + * Copyright (c) 1999, 2000 Silicon Graphics, Inc. + */ +#include +#include +#include + + +/** + * __mips_set_bit - Atomically set a bit in memory. This is called by + * set_bit() if it cannot find a faster solution. + * @nr: the bit to set + * @addr: the address to start counting from + */ +void __mips_set_bit(unsigned long nr, volatile unsigned long *addr) +{ + volatile unsigned long *a = addr; + unsigned bit = nr & SZLONG_MASK; + unsigned long mask; + unsigned long flags; + + a += nr >> SZLONG_LOG; + mask = 1UL << bit; + raw_local_irq_save(flags); + *a |= mask; + raw_local_irq_restore(flags); +} +EXPORT_SYMBOL(__mips_set_bit); + + +/** + * __mips_clear_bit - Clears a bit in memory. This is called by clear_bit() if + * it cannot find a faster solution. + * @nr: Bit to clear + * @addr: Address to start counting from + */ +void __mips_clear_bit(unsigned long nr, volatile unsigned long *addr) +{ + volatile unsigned long *a = addr; + unsigned bit = nr & SZLONG_MASK; + unsigned long mask; + unsigned long flags; + + a += nr >> SZLONG_LOG; + mask = 1UL << bit; + raw_local_irq_save(flags); + *a &= ~mask; + raw_local_irq_restore(flags); +} +EXPORT_SYMBOL(__mips_clear_bit); + + +/** + * __mips_change_bit - Toggle a bit in memory. This is called by change_bit() + * if it cannot find a faster solution. + * @nr: Bit to change + * @addr: Address to start counting from + */ +void __mips_change_bit(unsigned long nr, volatile unsigned long *addr) +{ + volatile unsigned long *a = addr; + unsigned bit = nr & SZLONG_MASK; + unsigned long mask; + unsigned long flags; + + a += nr >> SZLONG_LOG; + mask = 1UL << bit; + raw_local_irq_save(flags); + *a ^= mask; + raw_local_irq_restore(flags); +} +EXPORT_SYMBOL(__mips_change_bit); + + +/** + * __mips_test_and_set_bit - Set a bit and return its old value. This is + * called by test_and_set_bit() if it cannot find a faster solution. + * @nr: Bit to set + * @addr: Address to count from + */ +int __mips_test_and_set_bit(unsigned long nr, + volatile unsigned long *addr) +{ + volatile unsigned long *a = addr; + unsigned bit = nr & SZLONG_MASK; + unsigned long mask; + unsigned long flags; + unsigned long res; + + a += nr >> SZLONG_LOG; + mask = 1UL << bit; + raw_local_irq_save(flags); + res = (mask & *a); + *a |= mask; + raw_local_irq_restore(flags); + return res; +} +EXPORT_SYMBOL(__mips_test_and_set_bit); + + +/** + * __mips_test_and_set_bit_lock - Set a bit and return its old value. This is + * called by test_and_set_bit_lock() if it cannot find a faster solution. + * @nr: Bit to set + * @addr: Address to count from + */ +int __mips_test_and_set_bit_lock(unsigned long nr, + volatile unsigned long *addr) +{ + volatile unsigned long *a = addr; + unsigned bit = nr & SZLONG_MASK; + unsigned long mask; + unsigned long flags; + unsigned long res; + + a += nr >> SZLONG_LOG; + mask = 1UL << bit; + raw_local_irq_save(flags); + res = (mask & *a); + *a |= mask; + raw_local_irq_restore(flags); + return res; +} +EXPORT_SYMBOL(__mips_test_and_set_bit_lock); + + +/** + * __mips_test_and_clear_bit - Clear a bit and return its old value. This is + * called by test_and_clear_bit() if it cannot find a faster solution. + * @nr: Bit to clear + * @addr: Address to count from + */ +int __mips_test_and_clear_bit(unsigned long nr, volatile unsigned long *addr) +{ + volatile unsigned long *a = addr; + unsigned bit = nr & SZLONG_MASK; + unsigned long mask; + unsigned long flags; + unsigned long res; + + a += nr >> SZLONG_LOG; + mask = 1UL << bit; + raw_local_irq_save(flags); + res = (mask & *a); + *a &= ~mask; + raw_local_irq_restore(flags); + return res; +} +EXPORT_SYMBOL(__mips_test_and_clear_bit); + + +/** + * __mips_test_and_change_bit - Change a bit and return its old value. This is + * called by test_and_change_bit() if it cannot find a faster solution. + * @nr: Bit to change + * @addr: Address to count from + */ +int __mips_test_and_change_bit(unsigned long nr, volatile unsigned long *addr) +{ + volatile unsigned long *a = addr; + unsigned bit = nr & SZLONG_MASK; + unsigned long mask; + unsigned long flags; + unsigned long res; + + a += nr >> SZLONG_LOG; + mask = 1UL << bit; + raw_local_irq_save(flags); + res = (mask & *a); + *a ^= mask; + raw_local_irq_restore(flags); + return res; +} +EXPORT_SYMBOL(__mips_test_and_change_bit); -- cgit v0.10.2 From e97c5b609880d97313b13eb71830fca62cee50c2 Mon Sep 17 00:00:00 2001 From: Jim Quinlan Date: Thu, 6 Sep 2012 11:36:56 -0400 Subject: MIPS: Make irqflags.h functions preempt-safe for non-mipsr2 cpus For non MIPSr2 processors, such as the BMIPS 5000, calls to arch_local_irq_disable() and others may be preempted, and in doing so a stale value may be restored to c0_status. This fix disables preemption for such processors prior to the call and enables it after the call. Those functions that needed this fix have been "outlined" to mips-atomic.c, as they are no longer good candidates for inlining. This bug was observed in a BMIPS 5000, occuring once every few hours in a continuous reboot test. It was traced to the write_lock_irq() function which was being invoked in release_task() in exit.c. By placing a number of "nops" inbetween the mfc0/mtc0 pair in arch_local_irq_disable(), which is called by write_lock_irq(), we were able to greatly increase the occurance of this bug. Similarly, the application of this commit silenced the bug. Signed-off-by: Jim Quinlan Cc: linux-mips@linux-mips.org Cc: David Daney Cc: Kevin Cernekee cernekee@gmail.com Cc: Jim Quinlan Patchwork: https://patchwork.linux-mips.org/patch/4321/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/include/asm/irqflags.h b/arch/mips/include/asm/irqflags.h index 309cbcd..9f3384c 100644 --- a/arch/mips/include/asm/irqflags.h +++ b/arch/mips/include/asm/irqflags.h @@ -16,83 +16,13 @@ #include #include -__asm__( - " .macro arch_local_irq_enable \n" - " .set push \n" - " .set reorder \n" - " .set noat \n" -#ifdef CONFIG_MIPS_MT_SMTC - " mfc0 $1, $2, 1 # SMTC - clear TCStatus.IXMT \n" - " ori $1, 0x400 \n" - " xori $1, 0x400 \n" - " mtc0 $1, $2, 1 \n" -#elif defined(CONFIG_CPU_MIPSR2) - " ei \n" -#else - " mfc0 $1,$12 \n" - " ori $1,0x1f \n" - " xori $1,0x1e \n" - " mtc0 $1,$12 \n" -#endif - " irq_enable_hazard \n" - " .set pop \n" - " .endm"); +#if defined(CONFIG_CPU_MIPSR2) && !defined(CONFIG_MIPS_MT_SMTC) -extern void smtc_ipi_replay(void); - -static inline void arch_local_irq_enable(void) -{ -#ifdef CONFIG_MIPS_MT_SMTC - /* - * SMTC kernel needs to do a software replay of queued - * IPIs, at the cost of call overhead on each local_irq_enable() - */ - smtc_ipi_replay(); -#endif - __asm__ __volatile__( - "arch_local_irq_enable" - : /* no outputs */ - : /* no inputs */ - : "memory"); -} - - -/* - * For cli() we have to insert nops to make sure that the new value - * has actually arrived in the status register before the end of this - * macro. - * R4000/R4400 need three nops, the R4600 two nops and the R10000 needs - * no nops at all. - */ -/* - * For TX49, operating only IE bit is not enough. - * - * If mfc0 $12 follows store and the mfc0 is last instruction of a - * page and fetching the next instruction causes TLB miss, the result - * of the mfc0 might wrongly contain EXL bit. - * - * ERT-TX49H2-027, ERT-TX49H3-012, ERT-TX49HL3-006, ERT-TX49H4-008 - * - * Workaround: mask EXL bit of the result or place a nop before mfc0. - */ __asm__( " .macro arch_local_irq_disable\n" " .set push \n" " .set noat \n" -#ifdef CONFIG_MIPS_MT_SMTC - " mfc0 $1, $2, 1 \n" - " ori $1, 0x400 \n" - " .set noreorder \n" - " mtc0 $1, $2, 1 \n" -#elif defined(CONFIG_CPU_MIPSR2) " di \n" -#else - " mfc0 $1,$12 \n" - " ori $1,0x1f \n" - " xori $1,0x1f \n" - " .set noreorder \n" - " mtc0 $1,$12 \n" -#endif " irq_disable_hazard \n" " .set pop \n" " .endm \n"); @@ -106,46 +36,14 @@ static inline void arch_local_irq_disable(void) : "memory"); } -__asm__( - " .macro arch_local_save_flags flags \n" - " .set push \n" - " .set reorder \n" -#ifdef CONFIG_MIPS_MT_SMTC - " mfc0 \\flags, $2, 1 \n" -#else - " mfc0 \\flags, $12 \n" -#endif - " .set pop \n" - " .endm \n"); - -static inline unsigned long arch_local_save_flags(void) -{ - unsigned long flags; - asm volatile("arch_local_save_flags %0" : "=r" (flags)); - return flags; -} __asm__( " .macro arch_local_irq_save result \n" " .set push \n" " .set reorder \n" " .set noat \n" -#ifdef CONFIG_MIPS_MT_SMTC - " mfc0 \\result, $2, 1 \n" - " ori $1, \\result, 0x400 \n" - " .set noreorder \n" - " mtc0 $1, $2, 1 \n" - " andi \\result, \\result, 0x400 \n" -#elif defined(CONFIG_CPU_MIPSR2) " di \\result \n" " andi \\result, 1 \n" -#else - " mfc0 \\result, $12 \n" - " ori $1, \\result, 0x1f \n" - " xori $1, 0x1f \n" - " .set noreorder \n" - " mtc0 $1, $12 \n" -#endif " irq_disable_hazard \n" " .set pop \n" " .endm \n"); @@ -160,61 +58,37 @@ static inline unsigned long arch_local_irq_save(void) return flags; } + __asm__( " .macro arch_local_irq_restore flags \n" " .set push \n" " .set noreorder \n" " .set noat \n" -#ifdef CONFIG_MIPS_MT_SMTC - "mfc0 $1, $2, 1 \n" - "andi \\flags, 0x400 \n" - "ori $1, 0x400 \n" - "xori $1, 0x400 \n" - "or \\flags, $1 \n" - "mtc0 \\flags, $2, 1 \n" -#elif defined(CONFIG_CPU_MIPSR2) && defined(CONFIG_IRQ_CPU) +#if defined(CONFIG_IRQ_CPU) /* * Slow, but doesn't suffer from a relatively unlikely race * condition we're having since days 1. */ " beqz \\flags, 1f \n" - " di \n" + " di \n" " ei \n" "1: \n" -#elif defined(CONFIG_CPU_MIPSR2) +#else /* * Fast, dangerous. Life is fun, life is good. */ " mfc0 $1, $12 \n" " ins $1, \\flags, 0, 1 \n" " mtc0 $1, $12 \n" -#else - " mfc0 $1, $12 \n" - " andi \\flags, 1 \n" - " ori $1, 0x1f \n" - " xori $1, 0x1f \n" - " or \\flags, $1 \n" - " mtc0 \\flags, $12 \n" #endif " irq_disable_hazard \n" " .set pop \n" " .endm \n"); - static inline void arch_local_irq_restore(unsigned long flags) { unsigned long __tmp1; -#ifdef CONFIG_MIPS_MT_SMTC - /* - * SMTC kernel needs to do a software replay of queued - * IPIs, at the cost of branch and call overhead on each - * local_irq_restore() - */ - if (unlikely(!(flags & 0x0400))) - smtc_ipi_replay(); -#endif - __asm__ __volatile__( "arch_local_irq_restore\t%0" : "=r" (__tmp1) @@ -232,6 +106,75 @@ static inline void __arch_local_irq_restore(unsigned long flags) : "0" (flags) : "memory"); } +#else +/* Functions that require preempt_{dis,en}able() are in mips-atomic.c */ +void arch_local_irq_disable(void); +unsigned long arch_local_irq_save(void); +void arch_local_irq_restore(unsigned long flags); +void __arch_local_irq_restore(unsigned long flags); +#endif /* if defined(CONFIG_CPU_MIPSR2) && !defined(CONFIG_MIPS_MT_SMTC) */ + + +__asm__( + " .macro arch_local_irq_enable \n" + " .set push \n" + " .set reorder \n" + " .set noat \n" +#ifdef CONFIG_MIPS_MT_SMTC + " mfc0 $1, $2, 1 # SMTC - clear TCStatus.IXMT \n" + " ori $1, 0x400 \n" + " xori $1, 0x400 \n" + " mtc0 $1, $2, 1 \n" +#elif defined(CONFIG_CPU_MIPSR2) + " ei \n" +#else + " mfc0 $1,$12 \n" + " ori $1,0x1f \n" + " xori $1,0x1e \n" + " mtc0 $1,$12 \n" +#endif + " irq_enable_hazard \n" + " .set pop \n" + " .endm"); + +extern void smtc_ipi_replay(void); + +static inline void arch_local_irq_enable(void) +{ +#ifdef CONFIG_MIPS_MT_SMTC + /* + * SMTC kernel needs to do a software replay of queued + * IPIs, at the cost of call overhead on each local_irq_enable() + */ + smtc_ipi_replay(); +#endif + __asm__ __volatile__( + "arch_local_irq_enable" + : /* no outputs */ + : /* no inputs */ + : "memory"); +} + + +__asm__( + " .macro arch_local_save_flags flags \n" + " .set push \n" + " .set reorder \n" +#ifdef CONFIG_MIPS_MT_SMTC + " mfc0 \\flags, $2, 1 \n" +#else + " mfc0 \\flags, $12 \n" +#endif + " .set pop \n" + " .endm \n"); + +static inline unsigned long arch_local_save_flags(void) +{ + unsigned long flags; + asm volatile("arch_local_save_flags %0" : "=r" (flags)); + return flags; +} + static inline int arch_irqs_disabled_flags(unsigned long flags) { @@ -245,7 +188,7 @@ static inline int arch_irqs_disabled_flags(unsigned long flags) #endif } -#endif +#endif /* #ifndef __ASSEMBLY__ */ /* * Do the CPU's IRQ-state tracing from assembly code. diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile index a7b8937..eeddc58 100644 --- a/arch/mips/lib/Makefile +++ b/arch/mips/lib/Makefile @@ -3,7 +3,8 @@ # lib-y += bitops.o csum_partial.o delay.o memcpy.o memset.o \ - strlen_user.o strncpy_user.o strnlen_user.o uncached.o + mips-atomic.o strlen_user.o strncpy_user.o \ + strnlen_user.o uncached.o obj-y += iomap.o obj-$(CONFIG_PCI) += iomap-pci.o diff --git a/arch/mips/lib/mips-atomic.c b/arch/mips/lib/mips-atomic.c new file mode 100644 index 0000000..e091430 --- /dev/null +++ b/arch/mips/lib/mips-atomic.c @@ -0,0 +1,176 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1994, 95, 96, 97, 98, 99, 2003 by Ralf Baechle + * Copyright (C) 1996 by Paul M. Antoine + * Copyright (C) 1999 Silicon Graphics + * Copyright (C) 2000 MIPS Technologies, Inc. + */ +#include +#include +#include +#include +#include + +#if !defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_MIPS_MT_SMTC) + +/* + * For cli() we have to insert nops to make sure that the new value + * has actually arrived in the status register before the end of this + * macro. + * R4000/R4400 need three nops, the R4600 two nops and the R10000 needs + * no nops at all. + */ +/* + * For TX49, operating only IE bit is not enough. + * + * If mfc0 $12 follows store and the mfc0 is last instruction of a + * page and fetching the next instruction causes TLB miss, the result + * of the mfc0 might wrongly contain EXL bit. + * + * ERT-TX49H2-027, ERT-TX49H3-012, ERT-TX49HL3-006, ERT-TX49H4-008 + * + * Workaround: mask EXL bit of the result or place a nop before mfc0. + */ +__asm__( + " .macro arch_local_irq_disable\n" + " .set push \n" + " .set noat \n" +#ifdef CONFIG_MIPS_MT_SMTC + " mfc0 $1, $2, 1 \n" + " ori $1, 0x400 \n" + " .set noreorder \n" + " mtc0 $1, $2, 1 \n" +#elif defined(CONFIG_CPU_MIPSR2) + /* see irqflags.h for inline function */ +#else + " mfc0 $1,$12 \n" + " ori $1,0x1f \n" + " xori $1,0x1f \n" + " .set noreorder \n" + " mtc0 $1,$12 \n" +#endif + " irq_disable_hazard \n" + " .set pop \n" + " .endm \n"); + +void arch_local_irq_disable(void) +{ + preempt_disable(); + __asm__ __volatile__( + "arch_local_irq_disable" + : /* no outputs */ + : /* no inputs */ + : "memory"); + preempt_enable(); +} +EXPORT_SYMBOL(arch_local_irq_disable); + + +__asm__( + " .macro arch_local_irq_save result \n" + " .set push \n" + " .set reorder \n" + " .set noat \n" +#ifdef CONFIG_MIPS_MT_SMTC + " mfc0 \\result, $2, 1 \n" + " ori $1, \\result, 0x400 \n" + " .set noreorder \n" + " mtc0 $1, $2, 1 \n" + " andi \\result, \\result, 0x400 \n" +#elif defined(CONFIG_CPU_MIPSR2) + /* see irqflags.h for inline function */ +#else + " mfc0 \\result, $12 \n" + " ori $1, \\result, 0x1f \n" + " xori $1, 0x1f \n" + " .set noreorder \n" + " mtc0 $1, $12 \n" +#endif + " irq_disable_hazard \n" + " .set pop \n" + " .endm \n"); + +unsigned long arch_local_irq_save(void) +{ + unsigned long flags; + preempt_disable(); + asm volatile("arch_local_irq_save\t%0" + : "=r" (flags) + : /* no inputs */ + : "memory"); + preempt_enable(); + return flags; +} +EXPORT_SYMBOL(arch_local_irq_save); + + +__asm__( + " .macro arch_local_irq_restore flags \n" + " .set push \n" + " .set noreorder \n" + " .set noat \n" +#ifdef CONFIG_MIPS_MT_SMTC + "mfc0 $1, $2, 1 \n" + "andi \\flags, 0x400 \n" + "ori $1, 0x400 \n" + "xori $1, 0x400 \n" + "or \\flags, $1 \n" + "mtc0 \\flags, $2, 1 \n" +#elif defined(CONFIG_CPU_MIPSR2) && defined(CONFIG_IRQ_CPU) + /* see irqflags.h for inline function */ +#elif defined(CONFIG_CPU_MIPSR2) + /* see irqflags.h for inline function */ +#else + " mfc0 $1, $12 \n" + " andi \\flags, 1 \n" + " ori $1, 0x1f \n" + " xori $1, 0x1f \n" + " or \\flags, $1 \n" + " mtc0 \\flags, $12 \n" +#endif + " irq_disable_hazard \n" + " .set pop \n" + " .endm \n"); + +void arch_local_irq_restore(unsigned long flags) +{ + unsigned long __tmp1; + +#ifdef CONFIG_MIPS_MT_SMTC + /* + * SMTC kernel needs to do a software replay of queued + * IPIs, at the cost of branch and call overhead on each + * local_irq_restore() + */ + if (unlikely(!(flags & 0x0400))) + smtc_ipi_replay(); +#endif + preempt_disable(); + __asm__ __volatile__( + "arch_local_irq_restore\t%0" + : "=r" (__tmp1) + : "0" (flags) + : "memory"); + preempt_enable(); +} +EXPORT_SYMBOL(arch_local_irq_restore); + + +void __arch_local_irq_restore(unsigned long flags) +{ + unsigned long __tmp1; + + preempt_disable(); + __asm__ __volatile__( + "arch_local_irq_restore\t%0" + : "=r" (__tmp1) + : "0" (flags) + : "memory"); + preempt_enable(); +} +EXPORT_SYMBOL(__arch_local_irq_restore); + +#endif /* !defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_MIPS_MT_SMTC) */ -- cgit v0.10.2 From 95e8f6a21996c4cc2c4574b231c6e858b749dce3 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Fri, 9 Nov 2012 10:05:57 +0100 Subject: drm/vmwgfx: Fix hibernation device reset The device would not reset properly when resuming from hibernation. Signed-off-by: Thomas Hellstrom Reviewed-by: Brian Paul Reviewed-by: Dmitry Torokhov Cc: stable@vger.kernel.org Cc: linux-graphics-maintainer@vmware.com Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index ed3c1e7..2dd185e 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -1098,6 +1098,11 @@ static void vmw_pm_complete(struct device *kdev) struct drm_device *dev = pci_get_drvdata(pdev); struct vmw_private *dev_priv = vmw_priv(dev); + mutex_lock(&dev_priv->hw_mutex); + vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2); + (void) vmw_read(dev_priv, SVGA_REG_ID); + mutex_unlock(&dev_priv->hw_mutex); + /** * Reclaim 3d reference held by fbdev and potentially * start fifo. -- cgit v0.10.2 From afcc87aa6a233e52df73552dc1dc9ae3881b7cc8 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Fri, 9 Nov 2012 10:45:14 +0100 Subject: drm/vmwgfx: Fix a case where the code would BUG when trying to pin GMR memory Signed-off-by: Thomas Hellstrom Reviewed-by: Brian Paul Reviewed-by: Dmitry Torokhov Cc: stable@vger.kernel.org Cc: linux-graphics-maintainer@vmware.com Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c index 3ce68a2..d1498bf 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c @@ -306,7 +306,7 @@ void vmw_bo_pin(struct ttm_buffer_object *bo, bool pin) BUG_ON(!atomic_read(&bo->reserved)); BUG_ON(old_mem_type != TTM_PL_VRAM && - old_mem_type != VMW_PL_FLAG_GMR); + old_mem_type != VMW_PL_GMR); pl_flags = TTM_PL_FLAG_VRAM | VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED; if (pin) -- cgit v0.10.2 From ab277bbf662ef17ffb7fd8dd7a462a34e326e492 Mon Sep 17 00:00:00 2001 From: Stefano Stabellini Date: Thu, 8 Nov 2012 15:58:55 +0000 Subject: xen/arm: Fix compile errors when drivers are compiled as modules (export more). The commit 911dec0db4de6ccc544178a8ddaf9cec0a11d533 "xen/arm: Fix compile errors when drivers are compiled as modules." exports the neccessary functions. But to guard ourselves against out-of-tree modules and future drivers hitting this, lets export all of the relevant hypercalls. Acked-by: Arnd Bergmann Signed-off-by: Stefano Stabellini Signed-off-by: Konrad Rzeszutek Wilk diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c index 96d969d..f576092 100644 --- a/arch/arm/xen/enlighten.c +++ b/arch/arm/xen/enlighten.c @@ -170,4 +170,10 @@ EXPORT_SYMBOL_GPL(free_xenballooned_pages); /* In the hypervisor.S file. */ EXPORT_SYMBOL_GPL(HYPERVISOR_event_channel_op); EXPORT_SYMBOL_GPL(HYPERVISOR_grant_table_op); +EXPORT_SYMBOL_GPL(HYPERVISOR_xen_version); +EXPORT_SYMBOL_GPL(HYPERVISOR_console_io); +EXPORT_SYMBOL_GPL(HYPERVISOR_sched_op); +EXPORT_SYMBOL_GPL(HYPERVISOR_hvm_op); +EXPORT_SYMBOL_GPL(HYPERVISOR_memory_op); +EXPORT_SYMBOL_GPL(HYPERVISOR_physdev_op); EXPORT_SYMBOL_GPL(privcmd_call); -- cgit v0.10.2 From 41269386b0898b12f82e290604691111a0cdf75b Mon Sep 17 00:00:00 2001 From: Antti Palosaari Date: Wed, 7 Nov 2012 23:52:52 +0100 Subject: [media] dvb_usb_v2: switch interruptible mutex to normal Fixes error: dvb_usb_v2: pid_filter() failed=-4 error code -4 is EINTR, Interrupted system call That error blocks I/O in some cases as -EINTR error was returned by the mutex which was protecting USB control messages. We want configure hardware to sleep mode on every case after tuning is stopped. That kind of behavior blocks it, leaving hardware some unwanted state in worst case. That error was seen every time when af9015 was plugged to USB1.1 which leads use of hardware PID filters. Stop tuning (tzap) with ctrl+c failed as driver tries to remove hardware PID filters. Tested with every hardware which uses routine in question. Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c b/drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c index 0431bee..5716662 100644 --- a/drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c +++ b/drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c @@ -32,9 +32,7 @@ int dvb_usbv2_generic_rw(struct dvb_usb_device *d, u8 *wbuf, u16 wlen, u8 *rbuf, return -EINVAL; } - ret = mutex_lock_interruptible(&d->usb_mutex); - if (ret < 0) - return ret; + mutex_lock(&d->usb_mutex); dev_dbg(&d->udev->dev, "%s: >>> %*ph\n", __func__, wlen, wbuf); -- cgit v0.10.2 From c36a7ff4578ab6294885aef5ef241aeec4cdb1f0 Mon Sep 17 00:00:00 2001 From: Jiri Engelthaler Date: Thu, 20 Sep 2012 16:49:50 +0200 Subject: mtd: slram: invalid checking of absolute end address Fixed parsing end absolute address. Signed-off-by: Jiri Engelthaler Cc: stable@vger.kernel.org Signed-off-by: Artem Bityutskiy diff --git a/drivers/mtd/devices/slram.c b/drivers/mtd/devices/slram.c index 8f52fc8..5a5cd2a 100644 --- a/drivers/mtd/devices/slram.c +++ b/drivers/mtd/devices/slram.c @@ -240,7 +240,7 @@ static int parse_cmdline(char *devname, char *szstart, char *szlength) if (*(szlength) != '+') { devlength = simple_strtoul(szlength, &buffer, 0); - devlength = handle_unit(devlength, buffer) - devstart; + devlength = handle_unit(devlength, buffer); if (devlength < devstart) goto err_out; -- cgit v0.10.2 From 0131950ebd146b5e31508233352d6f4625af25b1 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Sat, 22 Sep 2012 11:42:31 +0530 Subject: mtd: onenand: Make flexonenand_set_boundary static Fixes the following sparse warning: drivers/mtd/onenand/onenand_base.c:3697:5: warning: symbol 'flexonenand_set_boundary' was not declared. Should it be static? Signed-off-by: Sachin Kamat Acked-by: Kyungmin Park Signed-off-by: Artem Bityutskiy diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 7153e0d2..b3f41f2 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -3694,7 +3694,7 @@ static int flexonenand_check_blocks_erased(struct mtd_info *mtd, int start, int * flexonenand_set_boundary - Writes the SLC boundary * @param mtd - mtd info structure */ -int flexonenand_set_boundary(struct mtd_info *mtd, int die, +static int flexonenand_set_boundary(struct mtd_info *mtd, int die, int boundary, int lock) { struct onenand_chip *this = mtd->priv; -- cgit v0.10.2 From 5ffd3412ae5536a4c57469cb8ea31887121dcb2e Mon Sep 17 00:00:00 2001 From: Thomas Betker Date: Wed, 17 Oct 2012 22:59:30 +0200 Subject: jffs2: Fix lock acquisition order bug in jffs2_write_begin jffs2_write_begin() first acquires the page lock, then f->sem. This causes an AB-BA deadlock with jffs2_garbage_collect_live(), which first acquires f->sem, then the page lock: jffs2_garbage_collect_live mutex_lock(&f->sem) (A) jffs2_garbage_collect_dnode jffs2_gc_fetch_page read_cache_page_async do_read_cache_page lock_page(page) (B) jffs2_write_begin grab_cache_page_write_begin find_lock_page lock_page(page) (B) mutex_lock(&f->sem) (A) We fix this by restructuring jffs2_write_begin() to take f->sem before the page lock. However, we make sure that f->sem is not held when calling jffs2_reserve_space(), as this is not permitted by the locking rules. The deadlock above was observed multiple times on an SoC with a dual ARMv7 (Cortex-A9), running the long-term 3.4.11 kernel; it occurred when using scp to copy files from a host system to the ARM target system. The fix was heavily tested on the same target system. Cc: stable@vger.kernel.org Signed-off-by: Thomas Betker Acked-by: Joakim Tjernlund Signed-off-by: Artem Bityutskiy diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c index 60ef3fb..1506673 100644 --- a/fs/jffs2/file.c +++ b/fs/jffs2/file.c @@ -138,33 +138,39 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping, struct page *pg; struct inode *inode = mapping->host; struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode); + struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb); + struct jffs2_raw_inode ri; + uint32_t alloc_len = 0; pgoff_t index = pos >> PAGE_CACHE_SHIFT; uint32_t pageofs = index << PAGE_CACHE_SHIFT; int ret = 0; + jffs2_dbg(1, "%s()\n", __func__); + + if (pageofs > inode->i_size) { + ret = jffs2_reserve_space(c, sizeof(ri), &alloc_len, + ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE); + if (ret) + return ret; + } + + mutex_lock(&f->sem); pg = grab_cache_page_write_begin(mapping, index, flags); - if (!pg) + if (!pg) { + if (alloc_len) + jffs2_complete_reservation(c); + mutex_unlock(&f->sem); return -ENOMEM; + } *pagep = pg; - jffs2_dbg(1, "%s()\n", __func__); - - if (pageofs > inode->i_size) { + if (alloc_len) { /* Make new hole frag from old EOF to new page */ - struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb); - struct jffs2_raw_inode ri; struct jffs2_full_dnode *fn; - uint32_t alloc_len; jffs2_dbg(1, "Writing new hole frag 0x%x-0x%x between current EOF and new page\n", (unsigned int)inode->i_size, pageofs); - ret = jffs2_reserve_space(c, sizeof(ri), &alloc_len, - ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE); - if (ret) - goto out_page; - - mutex_lock(&f->sem); memset(&ri, 0, sizeof(ri)); ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK); @@ -191,7 +197,6 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping, if (IS_ERR(fn)) { ret = PTR_ERR(fn); jffs2_complete_reservation(c); - mutex_unlock(&f->sem); goto out_page; } ret = jffs2_add_full_dnode_to_inode(c, f, fn); @@ -206,12 +211,10 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping, jffs2_mark_node_obsolete(c, fn->raw); jffs2_free_full_dnode(fn); jffs2_complete_reservation(c); - mutex_unlock(&f->sem); goto out_page; } jffs2_complete_reservation(c); inode->i_size = pageofs; - mutex_unlock(&f->sem); } /* @@ -220,18 +223,18 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping, * case of a short-copy. */ if (!PageUptodate(pg)) { - mutex_lock(&f->sem); ret = jffs2_do_readpage_nolock(inode, pg); - mutex_unlock(&f->sem); if (ret) goto out_page; } + mutex_unlock(&f->sem); jffs2_dbg(1, "end write_begin(). pg->flags %lx\n", pg->flags); return ret; out_page: unlock_page(pg); page_cache_release(pg); + mutex_unlock(&f->sem); return ret; } -- cgit v0.10.2 From 476e44cb19f1fbf2d5883dddcc0ce31b33b45915 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Fri, 19 Oct 2012 20:10:46 +0300 Subject: Bluetooth: Fix having bogus entries in mgmt_read_index_list reply The mgmt_read_index_list uses one loop to calculate the max needed size of its response with the help of an upper-bound of the controller count. The second loop is more strict as it checks for HCI_SETUP (which might have gotten set after the first loop) and could result in some indexes being skipped. Because of this the function needs to readjust the event length and index count after filling in the response array. Signed-off-by: Johan Hedberg Cc: stable@vger.kernel.org Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index aa2ea0a..2cfabe2 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -326,7 +326,7 @@ static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data, struct hci_dev *d; size_t rp_len; u16 count; - int i, err; + int err; BT_DBG("sock %p", sk); @@ -347,9 +347,7 @@ static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data, return -ENOMEM; } - rp->num_controllers = cpu_to_le16(count); - - i = 0; + count = 0; list_for_each_entry(d, &hci_dev_list, list) { if (test_bit(HCI_SETUP, &d->dev_flags)) continue; @@ -357,10 +355,13 @@ static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data, if (!mgmt_valid_hdev(d)) continue; - rp->index[i++] = cpu_to_le16(d->id); + rp->index[count++] = cpu_to_le16(d->id); BT_DBG("Added hci%u", d->id); } + rp->num_controllers = cpu_to_le16(count); + rp_len = sizeof(*rp) + (2 * count); + read_unlock(&hci_dev_list_lock); err = cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_INDEX_LIST, 0, rp, -- cgit v0.10.2 From 896ea28ea824d49671fc7e9315d9c5be491a644f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Paulo=20S=C3=A9rgio?= Date: Thu, 25 Oct 2012 16:55:51 -0300 Subject: Bluetooth: Fix error status when pairing fails MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When pairing fails due to wrong confirm value, the management layer doesn't report a proper error status. It sends MGMT_STATUS_CONNECT_FAILED instead of MGMT_STATUS_AUTH_FAILED. Most of management functions that receive a status as a parameter expects for it to be encoded as a HCI status. But when a SMP pairing fails, the SMP layer sends the SMP reason as the error status to the management layer. This commit maps all SMP reasons to HCI_ERROR_AUTH_FAILURE, which will be converted to MGMT_STATUS_AUTH_FAILED in the management layer. Reported-by: Claudio Takahasi Reviewed-by: João Paulo Rechi Vita Signed-off-by: Paulo Sérgio Signed-off-by: Gustavo Padovan diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 2ac8d50..a592337 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -267,7 +267,7 @@ static void smp_failure(struct l2cap_conn *conn, u8 reason, u8 send) clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->hcon->flags); mgmt_auth_failed(conn->hcon->hdev, conn->dst, hcon->type, - hcon->dst_type, reason); + hcon->dst_type, HCI_ERROR_AUTH_FAILURE); cancel_delayed_work_sync(&conn->security_timer); -- cgit v0.10.2 From fbe96d6ff9f4e361e1b2ec0a30140e17af7e3854 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Tue, 30 Oct 2012 01:35:40 -0700 Subject: Bluetooth: Notify about device registration before power on It is important that the monitor interface gets notified about a new device before its power on procedure has been started. For some reason that is no longer working as expected and the power on procedure runs first. It is safe to just notify about device registration and trigger the power on procedure afterwards. Signed-off-by: Marcel Holtmann Acked-by: Johan Hedberg Signed-off-by: Gustavo Padovan diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 8a0ce70..a0a2f97 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -1754,11 +1754,11 @@ int hci_register_dev(struct hci_dev *hdev) if (hdev->dev_type != HCI_AMP) set_bit(HCI_AUTO_OFF, &hdev->dev_flags); - schedule_work(&hdev->power_on); - hci_notify(hdev, HCI_DEV_REG); hci_dev_hold(hdev); + schedule_work(&hdev->power_on); + return id; err_wqueue: -- cgit v0.10.2 From acd9454433e28c1a365d8b069813c35c1c3a8ac3 Mon Sep 17 00:00:00 2001 From: Marcos Chaparro Date: Tue, 6 Nov 2012 16:19:11 -0300 Subject: Bluetooth: ath3k: Add support for VAIO VPCEH [0489:e027] Added Atheros AR3011 internal bluetooth device found in Sony VAIO VPCEH to the devices list. Before this, the bluetooth module was identified as an Foxconn / Hai bluetooth device [0489:e027], now it claims to be an AtherosAR3011 Bluetooth [0cf3:3005]. T: Bus=01 Lev=02 Prnt=02 Port=04 Cnt=02 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0489 ProdID=e027 Rev= 0.01 C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms Signed-off-by: Marcos Chaparro Signed-off-by: Gustavo Padovan diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index fc2de55..b00000e 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -67,6 +67,7 @@ static struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x13d3, 0x3304) }, { USB_DEVICE(0x0930, 0x0215) }, { USB_DEVICE(0x0489, 0xE03D) }, + { USB_DEVICE(0x0489, 0xE027) }, /* Atheros AR9285 Malbec with sflash firmware */ { USB_DEVICE(0x03F0, 0x311D) }, diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index debda27..ee82f2f 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -124,6 +124,7 @@ static struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, + { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, /* Atheros AR9285 Malbec with sflash firmware */ { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, -- cgit v0.10.2 From 482049f75750d73358e65236b933417b69f9cc25 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Thu, 8 Nov 2012 10:25:26 +0100 Subject: Bluetooth: Fix memory leak when removing a UUID When removing a UUID from the list in the remove_uuid() function we must also kfree the entry in addition to removing it from the list. Signed-off-by: Johan Hedberg Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 2cfabe2..91de423 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -1367,6 +1367,7 @@ static int remove_uuid(struct sock *sk, struct hci_dev *hdev, void *data, continue; list_del(&match->list); + kfree(match); found++; } -- cgit v0.10.2 From 20f544eea03db4b498942558b882d463ce575c3e Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 8 Nov 2012 14:06:28 +0100 Subject: mac80211: don't send null data packet when not associated On resume or firmware recovery, mac80211 sends a null data packet to see if the AP is still around and hasn't disconnected us. However, it always does this even if it wasn't even connected before, leading to a warning in the new channel context code. Fix this by checking that it's associated. Cc: stable@vger.kernel.org Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg diff --git a/net/mac80211/util.c b/net/mac80211/util.c index e6e4bda..fa1d343 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1491,6 +1491,8 @@ int ieee80211_reconfig(struct ieee80211_local *local) list_for_each_entry(sdata, &local->interfaces, list) { if (sdata->vif.type != NL80211_IFTYPE_STATION) continue; + if (!sdata->u.mgd.associated) + continue; ieee80211_send_nullfunc(local, sdata, 0); } -- cgit v0.10.2 From 445632ad6dda42f4d3f9df2569a852ca0d4ea608 Mon Sep 17 00:00:00 2001 From: Misael Lopez Cruz Date: Thu, 8 Nov 2012 12:03:12 -0600 Subject: ASoC: dapm: Use card_list during DAPM shutdown DAPM shutdown incorrectly uses "list" field of codec struct while iterating over probed components (codec_dev_list). "list" field refers to codecs registered in the system, "card_list" field is used for probed components. Signed-off-by: Misael Lopez Cruz Signed-off-by: Liam Girdwood Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index d0a4be3..6e35bca 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -3745,7 +3745,7 @@ void snd_soc_dapm_shutdown(struct snd_soc_card *card) { struct snd_soc_codec *codec; - list_for_each_entry(codec, &card->codec_dev_list, list) { + list_for_each_entry(codec, &card->codec_dev_list, card_list) { soc_dapm_shutdown_codec(&codec->dapm); if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) snd_soc_dapm_set_bias_level(&codec->dapm, -- cgit v0.10.2 From d055852ee86703d48b0c571e94bd2eb33aa9b91d Mon Sep 17 00:00:00 2001 From: Mukund Navada Date: Fri, 9 Nov 2012 11:53:40 +0530 Subject: ASoC: core: Double control update err for snd_soc_put_volsw_sx snd_soc_put_volsw_sx function fails to update second control if first control is updated by snd_soc_update_bits_locked. Signed-off-by: Mukund Navada Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index d119862..10d21be 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -2786,8 +2786,9 @@ int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, val = (ucontrol->value.integer.value[0] + min) & mask; val = val << shift; - if (snd_soc_update_bits_locked(codec, reg, val_mask, val)) - return err; + err = snd_soc_update_bits_locked(codec, reg, val_mask, val); + if (err < 0) + return err; if (snd_soc_volsw_is_stereo(mc)) { val_mask = mask << rshift; -- cgit v0.10.2 From 60713a0ca7fd6651b951cc1b4dbd528d1fc0281b Mon Sep 17 00:00:00 2001 From: Hannes Frederic Sowa Date: Tue, 6 Nov 2012 16:18:41 +0000 Subject: ipv6: send unsolicited neighbour advertisements to all-nodes As documented in RFC4861 (Neighbor Discovery for IP version 6) 7.2.6., unsolicited neighbour advertisements should be sent to the all-nodes multicast address. Signed-off-by: Hannes Frederic Sowa Signed-off-by: David S. Miller diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index ff36194..2edce30 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -535,7 +535,7 @@ static void ndisc_send_unsol_na(struct net_device *dev) { struct inet6_dev *idev; struct inet6_ifaddr *ifa; - struct in6_addr mcaddr; + struct in6_addr mcaddr = IN6ADDR_LINKLOCAL_ALLNODES_INIT; idev = in6_dev_get(dev); if (!idev) @@ -543,7 +543,6 @@ static void ndisc_send_unsol_na(struct net_device *dev) read_lock_bh(&idev->lock); list_for_each_entry(ifa, &idev->addr_list, if_list) { - addrconf_addr_solict_mult(&ifa->addr, &mcaddr); ndisc_send_na(dev, NULL, &mcaddr, &ifa->addr, /*router=*/ !!idev->cnf.forwarding, /*solicited=*/ false, /*override=*/ true, -- cgit v0.10.2 From 9532021da6da48351ce48a079c673df8e3930b4a Mon Sep 17 00:00:00 2001 From: Steve Glendinning Date: Thu, 8 Nov 2012 06:26:21 +0000 Subject: usbnet: ratelimit kevent may have been dropped warnings when something goes wrong, a flood of these messages can be generated by usbnet (thousands per second). This doesn't generally *help* the condition so this patch ratelimits the rate of their generation. There's an underlying problem in usbnet's kevent deferral mechanism which needs fixing, specifically that events *can* get dropped and not handled. This patch doesn't address this, but just mitigates fallout caused by the current implemention. Signed-off-by: Steve Glendinning Signed-off-by: David S. Miller diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index cb04f90..edb81ed 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -359,10 +359,12 @@ static enum skb_state defer_bh(struct usbnet *dev, struct sk_buff *skb, void usbnet_defer_kevent (struct usbnet *dev, int work) { set_bit (work, &dev->flags); - if (!schedule_work (&dev->kevent)) - netdev_err(dev->net, "kevent %d may have been dropped\n", work); - else + if (!schedule_work (&dev->kevent)) { + if (net_ratelimit()) + netdev_err(dev->net, "kevent %d may have been dropped\n", work); + } else { netdev_dbg(dev->net, "kevent %d scheduled\n", work); + } } EXPORT_SYMBOL_GPL(usbnet_defer_kevent); -- cgit v0.10.2 From 103cdd1d59e1ab6abccb049093239cc8e6295816 Mon Sep 17 00:00:00 2001 From: Wang Dongsheng Date: Fri, 9 Nov 2012 04:43:51 +0000 Subject: gianfar: ethernet vanishes after restoring from hibernation If a gianfar ethernet device is down prior to hibernating a system, it will no longer be present upon system restore. For example: ~# ifconfig eth0 down ~# echo disk > /sys/power/state ~# ifconfig eth0 up SIOCSIFFLAGS: No such device This happens because the restore function bails out early upon finding devices that were not up at hibernation. In doing so, it never gets to the netif_device_attach call at the end of the restore function. Adding the netif_device_attach as done here also makes the gfar_restore code consistent with what is done in the gfar_resume code. Cc: Claudiu Manoil Signed-off-by: Wang Dongsheng Signed-off-by: Paul Gortmaker Acked-by: Claudiu Manoil Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index 1d03dcd..19ac096 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -1353,8 +1353,11 @@ static int gfar_restore(struct device *dev) struct gfar_private *priv = dev_get_drvdata(dev); struct net_device *ndev = priv->ndev; - if (!netif_running(ndev)) + if (!netif_running(ndev)) { + netif_device_attach(ndev); + return 0; + } gfar_init_bds(ndev); init_registers(ndev); -- cgit v0.10.2 From a375413311b39005ef281bfd71ae8f4e3df22e97 Mon Sep 17 00:00:00 2001 From: Nicolas Dichtel Date: Fri, 9 Nov 2012 05:34:56 +0000 Subject: gre6: fix rtnl dump messages Spotted after a code review. Introduced by c12b395a46646bab69089ce7016ac78177f6001f (gre: Support GRE over IPv6). Signed-off-by: Nicolas Dichtel Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index 0185679..d5cb3c4 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -1633,9 +1633,9 @@ static size_t ip6gre_get_size(const struct net_device *dev) /* IFLA_GRE_OKEY */ nla_total_size(4) + /* IFLA_GRE_LOCAL */ - nla_total_size(4) + + nla_total_size(sizeof(struct in6_addr)) + /* IFLA_GRE_REMOTE */ - nla_total_size(4) + + nla_total_size(sizeof(struct in6_addr)) + /* IFLA_GRE_TTL */ nla_total_size(1) + /* IFLA_GRE_TOS */ @@ -1659,8 +1659,8 @@ static int ip6gre_fill_info(struct sk_buff *skb, const struct net_device *dev) nla_put_be16(skb, IFLA_GRE_OFLAGS, p->o_flags) || nla_put_be32(skb, IFLA_GRE_IKEY, p->i_key) || nla_put_be32(skb, IFLA_GRE_OKEY, p->o_key) || - nla_put(skb, IFLA_GRE_LOCAL, sizeof(struct in6_addr), &p->raddr) || - nla_put(skb, IFLA_GRE_REMOTE, sizeof(struct in6_addr), &p->laddr) || + nla_put(skb, IFLA_GRE_LOCAL, sizeof(struct in6_addr), &p->laddr) || + nla_put(skb, IFLA_GRE_REMOTE, sizeof(struct in6_addr), &p->raddr) || nla_put_u8(skb, IFLA_GRE_TTL, p->hop_limit) || /*nla_put_u8(skb, IFLA_GRE_TOS, t->priority) ||*/ nla_put_u8(skb, IFLA_GRE_ENCAP_LIMIT, p->encap_limit) || -- cgit v0.10.2 From 5cf8f7db8274f68b180ad277dbb0308e72b66efd Mon Sep 17 00:00:00 2001 From: Andreas Larsson Date: Mon, 29 Oct 2012 23:26:56 +0000 Subject: sparc: Add sparc support for platform_get_irq() This adds sparc support for platform_get_irq that in the normal case use platform_get_resource() to get an irq. This standard approach fails for sparc as there are no resources of type IORESOURCE_IRQ for irqs for sparc. Cross platform drivers can then use this standard platform function and work on sparc instead of having to have a special case for sparc. Signed-off-by: Andreas Larsson Signed-off-by: David S. Miller diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 8727e9c..72c776f 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -83,9 +83,16 @@ EXPORT_SYMBOL_GPL(platform_get_resource); */ int platform_get_irq(struct platform_device *dev, unsigned int num) { +#ifdef CONFIG_SPARC + /* sparc does not have irqs represented as IORESOURCE_IRQ resources */ + if (!dev || num >= dev->archdata.num_irqs) + return -ENXIO; + return dev->archdata.irqs[num]; +#else struct resource *r = platform_get_resource(dev, IORESOURCE_IRQ, num); return r ? r->start : -ENXIO; +#endif } EXPORT_SYMBOL_GPL(platform_get_irq); -- cgit v0.10.2 From 20424d85f8a07090fd32c6fad343f91b63c730b0 Mon Sep 17 00:00:00 2001 From: Andreas Larsson Date: Tue, 30 Oct 2012 00:09:46 +0000 Subject: sparc32, leon: Check for existent irq_map entry in leon_handle_ext_irq If an irq is being unlinked concurrently with leon_handle_ext_irq, irq_map[eirq] might be null in leon_handle_ext_irq. Make sure that this is not dereferenced. Signed-off-by: Andreas Larsson Acked-by: Sam Ravnborg Signed-off-by: David S. Miller diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c index f8b6eee..87f60ee 100644 --- a/arch/sparc/kernel/leon_kernel.c +++ b/arch/sparc/kernel/leon_kernel.c @@ -56,11 +56,13 @@ static inline unsigned int leon_eirq_get(int cpu) static void leon_handle_ext_irq(unsigned int irq, struct irq_desc *desc) { unsigned int eirq; + struct irq_bucket *p; int cpu = sparc_leon3_cpuid(); eirq = leon_eirq_get(cpu); - if ((eirq & 0x10) && irq_map[eirq]->irq) /* bit4 tells if IRQ happened */ - generic_handle_irq(irq_map[eirq]->irq); + p = irq_map[eirq]; + if ((eirq & 0x10) && p && p->irq) /* bit4 tells if IRQ happened */ + generic_handle_irq(p->irq); } /* The extended IRQ controller has been found, this function registers it */ -- cgit v0.10.2 From 0bce04be442cf4d6e4ba9dac2f0a4c5ee88af5c5 Mon Sep 17 00:00:00 2001 From: Andreas Larsson Date: Tue, 6 Nov 2012 00:12:03 +0000 Subject: of/address: sparc: Declare of_address_to_resource() as an extern function for sparc again This bug-fix makes sure that of_address_to_resource is defined extern for sparc so that the sparc-specific implementation of of_address_to_resource() is once again used when including include/linux/of_address.h in a sparc context. A number of drivers in mainline relies on this function working for sparc. The bug was introduced in a850a7554442f08d3e910c6eeb4ee216868dda1e, "of/address: add empty static inlines for !CONFIG_OF". Contrary to that commit title, the static inlines are added for !CONFIG_OF_ADDRESS, and CONFIG_OF_ADDRESS is never defined for sparc. This is good behavior for the other functions in include/linux/of_address.h, as the extern functions defined in drivers/of/address.c only gets linked when OF_ADDRESS is configured. However, for of_address_to_resource there exists a sparc-specific implementation in arch/sparc/arch/sparc/kernel/of_device_common.c Solution suggested by: Sam Ravnborg Signed-off-by: Andreas Larsson Acked-by: Rob Herring Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h index c287651..f930031 100644 --- a/arch/sparc/include/asm/prom.h +++ b/arch/sparc/include/asm/prom.h @@ -63,5 +63,10 @@ extern char *of_console_options; extern void irq_trans_init(struct device_node *dp); extern char *build_path_component(struct device_node *dp); +/* SPARC has a local implementation */ +extern int of_address_to_resource(struct device_node *dev, int index, + struct resource *r); +#define of_address_to_resource of_address_to_resource + #endif /* __KERNEL__ */ #endif /* _SPARC_PROM_H */ diff --git a/include/linux/of_address.h b/include/linux/of_address.h index a1984dd..e20e3af 100644 --- a/include/linux/of_address.h +++ b/include/linux/of_address.h @@ -28,11 +28,13 @@ static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; } #endif #else /* CONFIG_OF_ADDRESS */ +#ifndef of_address_to_resource static inline int of_address_to_resource(struct device_node *dev, int index, struct resource *r) { return -EINVAL; } +#endif static inline struct device_node *of_find_matching_node_by_address( struct device_node *from, const struct of_device_id *matches, -- cgit v0.10.2 From 193d2aadc0ff5c687f6f0d5ef1d38c86ab511a14 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 9 Nov 2012 19:37:59 -0800 Subject: sparc: Support atomic64_dec_if_positive properly. Sparc32 already supported it, as a consequence of using the generic atomic64 implementation. And the sparc64 implementation is rather trivial. This allows us to set ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE for all of sparc, and avoid the annoying warning from lib/atomic64_test.c Signed-off-by: David S. Miller diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index b6b442b..9f2edb5 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -20,6 +20,7 @@ config SPARC select HAVE_ARCH_TRACEHOOK select SYSCTL_EXCEPTION_TRACE select ARCH_WANT_OPTIONAL_GPIOLIB + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select RTC_CLASS select RTC_DRV_M48T59 select HAVE_IRQ_WORK diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h index ce35a1c..be56a24 100644 --- a/arch/sparc/include/asm/atomic_64.h +++ b/arch/sparc/include/asm/atomic_64.h @@ -1,7 +1,7 @@ /* atomic.h: Thankfully the V9 is at least reasonable for this * stuff. * - * Copyright (C) 1996, 1997, 2000 David S. Miller (davem@redhat.com) + * Copyright (C) 1996, 1997, 2000, 2012 David S. Miller (davem@redhat.com) */ #ifndef __ARCH_SPARC64_ATOMIC__ @@ -106,6 +106,8 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u) #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) +extern long atomic64_dec_if_positive(atomic64_t *v); + /* Atomic operations are already serializing */ #define smp_mb__before_atomic_dec() barrier() #define smp_mb__after_atomic_dec() barrier() diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S index 4d502da..85c233d 100644 --- a/arch/sparc/lib/atomic_64.S +++ b/arch/sparc/lib/atomic_64.S @@ -1,6 +1,6 @@ /* atomic.S: These things are too big to do inline. * - * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net) + * Copyright (C) 1999, 2007 2012 David S. Miller (davem@davemloft.net) */ #include @@ -117,3 +117,17 @@ ENTRY(atomic64_sub_ret) /* %o0 = decrement, %o1 = atomic_ptr */ sub %g1, %o0, %o0 2: BACKOFF_SPIN(%o2, %o3, 1b) ENDPROC(atomic64_sub_ret) + +ENTRY(atomic64_dec_if_positive) /* %o0 = atomic_ptr */ + BACKOFF_SETUP(%o2) +1: ldx [%o0], %g1 + brlez,pn %g1, 3f + sub %g1, 1, %g7 + casx [%o0], %g1, %g7 + cmp %g1, %g7 + bne,pn %xcc, BACKOFF_LABEL(2f, 1b) + nop +3: retl + sub %g1, 1, %o0 +2: BACKOFF_SPIN(%o2, %o3, 1b) +ENDPROC(atomic64_dec_if_positive) diff --git a/arch/sparc/lib/ksyms.c b/arch/sparc/lib/ksyms.c index ee31b88..0c4e35e 100644 --- a/arch/sparc/lib/ksyms.c +++ b/arch/sparc/lib/ksyms.c @@ -116,6 +116,7 @@ EXPORT_SYMBOL(atomic64_add); EXPORT_SYMBOL(atomic64_add_ret); EXPORT_SYMBOL(atomic64_sub); EXPORT_SYMBOL(atomic64_sub_ret); +EXPORT_SYMBOL(atomic64_dec_if_positive); /* Atomic bit operations. */ EXPORT_SYMBOL(test_and_set_bit); -- cgit v0.10.2 From 226f7cea949303a3e1911999a9a2c71b0a708e73 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 9 Nov 2012 20:53:32 -0800 Subject: sparc64: Fix build with mix of modular vs. non-modular crypto drivers. We tried linking in a single built object to hold the device table, but only works if all of the sparc64 crypto modules get built the same way (modular vs. non-modular). Just include the device ID stub into each driver source file so that the table gets compiled into the correct result in all cases. Reported-by: Meelis Roos Signed-off-by: David S. Miller diff --git a/arch/sparc/crypto/Makefile b/arch/sparc/crypto/Makefile index 6ae1ad5..5d469d8 100644 --- a/arch/sparc/crypto/Makefile +++ b/arch/sparc/crypto/Makefile @@ -13,13 +13,13 @@ obj-$(CONFIG_CRYPTO_DES_SPARC64) += camellia-sparc64.o obj-$(CONFIG_CRYPTO_CRC32C_SPARC64) += crc32c-sparc64.o -sha1-sparc64-y := sha1_asm.o sha1_glue.o crop_devid.o -sha256-sparc64-y := sha256_asm.o sha256_glue.o crop_devid.o -sha512-sparc64-y := sha512_asm.o sha512_glue.o crop_devid.o -md5-sparc64-y := md5_asm.o md5_glue.o crop_devid.o +sha1-sparc64-y := sha1_asm.o sha1_glue.o +sha256-sparc64-y := sha256_asm.o sha256_glue.o +sha512-sparc64-y := sha512_asm.o sha512_glue.o +md5-sparc64-y := md5_asm.o md5_glue.o -aes-sparc64-y := aes_asm.o aes_glue.o crop_devid.o -des-sparc64-y := des_asm.o des_glue.o crop_devid.o -camellia-sparc64-y := camellia_asm.o camellia_glue.o crop_devid.o +aes-sparc64-y := aes_asm.o aes_glue.o +des-sparc64-y := des_asm.o des_glue.o +camellia-sparc64-y := camellia_asm.o camellia_glue.o -crc32c-sparc64-y := crc32c_asm.o crc32c_glue.o crop_devid.o +crc32c-sparc64-y := crc32c_asm.o crc32c_glue.o diff --git a/arch/sparc/crypto/aes_glue.c b/arch/sparc/crypto/aes_glue.c index 8f1c998..3965d1d 100644 --- a/arch/sparc/crypto/aes_glue.c +++ b/arch/sparc/crypto/aes_glue.c @@ -475,3 +475,5 @@ MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("AES Secure Hash Algorithm, sparc64 aes opcode accelerated"); MODULE_ALIAS("aes"); + +#include "crop_devid.c" diff --git a/arch/sparc/crypto/camellia_glue.c b/arch/sparc/crypto/camellia_glue.c index 42905c0..62c89af 100644 --- a/arch/sparc/crypto/camellia_glue.c +++ b/arch/sparc/crypto/camellia_glue.c @@ -320,3 +320,5 @@ MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Camellia Cipher Algorithm, sparc64 camellia opcode accelerated"); MODULE_ALIAS("aes"); + +#include "crop_devid.c" diff --git a/arch/sparc/crypto/crc32c_glue.c b/arch/sparc/crypto/crc32c_glue.c index 0bd89ce..5162fad 100644 --- a/arch/sparc/crypto/crc32c_glue.c +++ b/arch/sparc/crypto/crc32c_glue.c @@ -177,3 +177,5 @@ MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("CRC32c (Castagnoli), sparc64 crc32c opcode accelerated"); MODULE_ALIAS("crc32c"); + +#include "crop_devid.c" diff --git a/arch/sparc/crypto/des_glue.c b/arch/sparc/crypto/des_glue.c index c4940c2..41524ce 100644 --- a/arch/sparc/crypto/des_glue.c +++ b/arch/sparc/crypto/des_glue.c @@ -527,3 +527,5 @@ MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms, sparc64 des opcode accelerated"); MODULE_ALIAS("des"); + +#include "crop_devid.c" diff --git a/arch/sparc/crypto/md5_glue.c b/arch/sparc/crypto/md5_glue.c index 603d723..09a9ea1 100644 --- a/arch/sparc/crypto/md5_glue.c +++ b/arch/sparc/crypto/md5_glue.c @@ -186,3 +186,5 @@ MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("MD5 Secure Hash Algorithm, sparc64 md5 opcode accelerated"); MODULE_ALIAS("md5"); + +#include "crop_devid.c" diff --git a/arch/sparc/crypto/sha1_glue.c b/arch/sparc/crypto/sha1_glue.c index 2bbb20b..6cd5f29 100644 --- a/arch/sparc/crypto/sha1_glue.c +++ b/arch/sparc/crypto/sha1_glue.c @@ -181,3 +181,5 @@ MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm, sparc64 sha1 opcode accelerated"); MODULE_ALIAS("sha1"); + +#include "crop_devid.c" diff --git a/arch/sparc/crypto/sha256_glue.c b/arch/sparc/crypto/sha256_glue.c index 591e656..04f555a 100644 --- a/arch/sparc/crypto/sha256_glue.c +++ b/arch/sparc/crypto/sha256_glue.c @@ -239,3 +239,5 @@ MODULE_DESCRIPTION("SHA-224 and SHA-256 Secure Hash Algorithm, sparc64 sha256 op MODULE_ALIAS("sha224"); MODULE_ALIAS("sha256"); + +#include "crop_devid.c" diff --git a/arch/sparc/crypto/sha512_glue.c b/arch/sparc/crypto/sha512_glue.c index 486f0a2..f04d199 100644 --- a/arch/sparc/crypto/sha512_glue.c +++ b/arch/sparc/crypto/sha512_glue.c @@ -224,3 +224,5 @@ MODULE_DESCRIPTION("SHA-384 and SHA-512 Secure Hash Algorithm, sparc64 sha512 op MODULE_ALIAS("sha384"); MODULE_ALIAS("sha512"); + +#include "crop_devid.c" -- cgit v0.10.2 From 40a812044a11a8fd32202cd22bb76329dd188094 Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Thu, 8 Nov 2012 09:03:47 -0800 Subject: Input: MT - document new 'flags' argument of input_mt_init_slots() Fixes new kernel-doc warning in input-mt.c: Warning(drivers/input/input-mt.c:38): No description found for parameter 'flags' Reported-by: Randy Dunlap Signed-off-by: Henrik Rydberg Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c index c0ec7d4..1abbc17 100644 --- a/drivers/input/input-mt.c +++ b/drivers/input/input-mt.c @@ -26,10 +26,14 @@ static void copy_abs(struct input_dev *dev, unsigned int dst, unsigned int src) * input_mt_init_slots() - initialize MT input slots * @dev: input device supporting MT events and finger tracking * @num_slots: number of slots used by the device + * @flags: mt tasks to handle in core * * This function allocates all necessary memory for MT slot handling * in the input device, prepares the ABS_MT_SLOT and * ABS_MT_TRACKING_ID events for use and sets up appropriate buffers. + * Depending on the flags set, it also performs pointer emulation and + * frame synchronization. + * * May be called repeatedly. Returns -EINVAL if attempting to * reinitialize with a different number of slots. */ -- cgit v0.10.2 From 1f98ab7fef48a2968f37f422c256c9fbd978c3f0 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 10 Nov 2012 03:44:14 +0100 Subject: mac80211: call skb_dequeue/ieee80211_free_txskb instead of __skb_queue_purge Fixes more wifi status skb leaks, leading to hostapd/wpa_supplicant hangs. Signed-off-by: Felix Fietkau Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 8c80455..156e583 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1314,6 +1314,8 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev); netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); +void ieee80211_purge_tx_queue(struct ieee80211_hw *hw, + struct sk_buff_head *skbs); /* HT */ void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 89ccd3e..3b5911e 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -117,8 +117,8 @@ static void free_sta_work(struct work_struct *wk) for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { local->total_ps_buffered -= skb_queue_len(&sta->ps_tx_buf[ac]); - __skb_queue_purge(&sta->ps_tx_buf[ac]); - __skb_queue_purge(&sta->tx_filtered[ac]); + ieee80211_purge_tx_queue(&local->hw, &sta->ps_tx_buf[ac]); + ieee80211_purge_tx_queue(&local->hw, &sta->tx_filtered[ac]); } #ifdef CONFIG_MAC80211_MESH @@ -141,7 +141,7 @@ static void free_sta_work(struct work_struct *wk) tid_tx = rcu_dereference_raw(sta->ampdu_mlme.tid_tx[i]); if (!tid_tx) continue; - __skb_queue_purge(&tid_tx->pending); + ieee80211_purge_tx_queue(&local->hw, &tid_tx->pending); kfree(tid_tx); } diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 3af0cc4..101eb88 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -668,3 +668,12 @@ void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb) dev_kfree_skb_any(skb); } EXPORT_SYMBOL(ieee80211_free_txskb); + +void ieee80211_purge_tx_queue(struct ieee80211_hw *hw, + struct sk_buff_head *skbs) +{ + struct sk_buff *skb; + + while ((skb = __skb_dequeue(skbs))) + ieee80211_free_txskb(hw, skb); +} diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index c9bf83f..b858ebe 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1358,7 +1358,7 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx) if (tx->skb) ieee80211_free_txskb(&tx->local->hw, tx->skb); else - __skb_queue_purge(&tx->skbs); + ieee80211_purge_tx_queue(&tx->local->hw, &tx->skbs); return -1; } else if (unlikely(res == TX_QUEUED)) { I802_DEBUG_INC(tx->local->tx_handlers_queued); @@ -2120,10 +2120,13 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, */ void ieee80211_clear_tx_pending(struct ieee80211_local *local) { + struct sk_buff *skb; int i; - for (i = 0; i < local->hw.queues; i++) - skb_queue_purge(&local->pending[i]); + for (i = 0; i < local->hw.queues; i++) { + while ((skb = skb_dequeue(&local->pending[i])) != NULL) + ieee80211_free_txskb(&local->hw, skb); + } } /* -- cgit v0.10.2 From 77b67063bb6bce6d475e910d3b886a606d0d91f7 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 11 Nov 2012 13:44:33 +0100 Subject: Linux 3.7-rc5 diff --git a/Makefile b/Makefile index a1ccf22..6edac73 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 7 SUBLEVEL = 0 -EXTRAVERSION = -rc4 +EXTRAVERSION = -rc5 NAME = Terrified Chipmunk # *DOCUMENTATION* -- cgit v0.10.2 From 0b8728d6f140dc20690384286ade47c956edc999 Mon Sep 17 00:00:00 2001 From: Nathan Lynch Date: Mon, 5 Nov 2012 06:20:31 -0800 Subject: ledtrig-cpu: kill useless mutex to fix sleep in atomic context Seeing the following every time the CPU enters or leaves idle on a Beagleboard: BUG: sleeping function called from invalid context at kernel/mutex.c:269 in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper/0 no locks held by swapper/0/0. [] (unwind_backtrace+0x0/0xf8) from [] (mutex_lock_nested+0x24/0x380) [] (mutex_lock_nested+0x24/0x380) from [] (ledtrig_cpu+0x38/0x88) [] (ledtrig_cpu+0x38/0x88) from [] (cpu_idle+0xf4/0x120) [] (cpu_idle+0xf4/0x120) from [] (start_kernel+0x2bc/0x30c) Miles Lane has reported seeing similar splats during system suspend. The mutex in struct led_trigger_cpu appears to have no function: it resides in a per-cpu data structure which never changes after the trigger is registered. So just remove it. Reported-by: Miles Lane Signed-off-by: Nathan Lynch Signed-off-by: Bryan Wu diff --git a/drivers/leds/ledtrig-cpu.c b/drivers/leds/ledtrig-cpu.c index b312056..4239b39 100644 --- a/drivers/leds/ledtrig-cpu.c +++ b/drivers/leds/ledtrig-cpu.c @@ -33,8 +33,6 @@ struct led_trigger_cpu { char name[MAX_NAME_LEN]; struct led_trigger *_trig; - struct mutex lock; - int lock_is_inited; }; static DEFINE_PER_CPU(struct led_trigger_cpu, cpu_trig); @@ -50,12 +48,6 @@ void ledtrig_cpu(enum cpu_led_event ledevt) { struct led_trigger_cpu *trig = &__get_cpu_var(cpu_trig); - /* mutex lock should be initialized before calling mutex_call() */ - if (!trig->lock_is_inited) - return; - - mutex_lock(&trig->lock); - /* Locate the correct CPU LED */ switch (ledevt) { case CPU_LED_IDLE_END: @@ -75,8 +67,6 @@ void ledtrig_cpu(enum cpu_led_event ledevt) /* Will leave the LED as it is */ break; } - - mutex_unlock(&trig->lock); } EXPORT_SYMBOL(ledtrig_cpu); @@ -117,14 +107,9 @@ static int __init ledtrig_cpu_init(void) for_each_possible_cpu(cpu) { struct led_trigger_cpu *trig = &per_cpu(cpu_trig, cpu); - mutex_init(&trig->lock); - snprintf(trig->name, MAX_NAME_LEN, "cpu%d", cpu); - mutex_lock(&trig->lock); led_trigger_register_simple(trig->name, &trig->_trig); - trig->lock_is_inited = 1; - mutex_unlock(&trig->lock); } register_syscore_ops(&ledtrig_cpu_syscore_ops); @@ -142,15 +127,9 @@ static void __exit ledtrig_cpu_exit(void) for_each_possible_cpu(cpu) { struct led_trigger_cpu *trig = &per_cpu(cpu_trig, cpu); - mutex_lock(&trig->lock); - led_trigger_unregister_simple(trig->_trig); trig->_trig = NULL; memset(trig->name, 0, MAX_NAME_LEN); - trig->lock_is_inited = 0; - - mutex_unlock(&trig->lock); - mutex_destroy(&trig->lock); } unregister_syscore_ops(&ledtrig_cpu_syscore_ops); -- cgit v0.10.2 From 0c9f79be295c99ac7e4b569ca493d75fdcc19e4e Mon Sep 17 00:00:00 2001 From: Xi Wang Date: Sun, 11 Nov 2012 11:20:01 +0000 Subject: ipv4: avoid undefined behavior in do_ip_setsockopt() (1< Signed-off-by: David S. Miller diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index 5eea4a8..14bbfcf 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -457,19 +457,28 @@ static int do_ip_setsockopt(struct sock *sk, int level, struct inet_sock *inet = inet_sk(sk); int val = 0, err; - if (((1<= sizeof(int)) { if (get_user(val, (int __user *) optval)) return -EFAULT; -- cgit v0.10.2 From 5a8477660d9ddc090203736d7271137265cb25bb Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 12 Nov 2012 01:19:02 -0500 Subject: kill bogus BUG_ON() in do_close_on_exec() It can be legitimately triggered via procfs access. Now, at least 2 of 3 of get_files_struct() callers in procfs are useless, but when and if we get rid of those we can always add WARN_ON() here. BUG_ON() at that spot is simply wrong. Signed-off-by: Al Viro diff --git a/fs/file.c b/fs/file.c index d3b5fa8..331e7d2 100644 --- a/fs/file.c +++ b/fs/file.c @@ -685,7 +685,6 @@ void do_close_on_exec(struct files_struct *files) struct fdtable *fdt; /* exec unshares first */ - BUG_ON(atomic_read(&files->count) != 1); spin_lock(&files->file_lock); for (i = 0; ; i++) { unsigned long set; -- cgit v0.10.2 From 05193639ca977cc889668718adb38db6d585045b Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 12 Nov 2012 10:07:36 +0100 Subject: ALSA: hda - Add a missing quirk entry for iMac 9,1 This is another variant of iMac 9,1 with a different codec SSID. Reported-and-tested-by: Everaldo Canuto Cc: [v3.3+] Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index c0ce3b1..68fd492 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -5407,6 +5407,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = { SND_PCI_QUIRK(0x106b, 0x4000, "MacbookPro 5,1", ALC889_FIXUP_IMAC91_VREF), SND_PCI_QUIRK(0x106b, 0x4100, "Macmini 3,1", ALC889_FIXUP_IMAC91_VREF), SND_PCI_QUIRK(0x106b, 0x4200, "Mac Pro 5,1", ALC885_FIXUP_MACPRO_GPIO), + SND_PCI_QUIRK(0x106b, 0x4300, "iMac 9,1", ALC889_FIXUP_IMAC91_VREF), SND_PCI_QUIRK(0x106b, 0x4600, "MacbookPro 5,2", ALC889_FIXUP_IMAC91_VREF), SND_PCI_QUIRK(0x106b, 0x4900, "iMac 9,1 Aluminum", ALC889_FIXUP_IMAC91_VREF), SND_PCI_QUIRK(0x106b, 0x4a00, "Macbook 5,2", ALC889_FIXUP_IMAC91_VREF), -- cgit v0.10.2 From 6722df86ba92cce09fd5348ca23e7042b51d6013 Mon Sep 17 00:00:00 2001 From: Josh Cartwright Date: Sun, 4 Nov 2012 22:03:02 +0100 Subject: ARM: 7570/1: quiet down the non make -s output Commit edc88ceb0c7d285b9f58bc29a638cd8163b59989 silenced the make -s build, but inadvertently made louder the non-silent build. Fix by prepending '@' to each of the added $(kecho) statements. Build with edc88ceb0c7d285b9f58bc29a638cd8163b59989: CHK include/generated/compile.h echo ' Kernel: arch/arm/boot/Image is ready' Kernel: arch/arm/boot/Image is ready LD arch/arm/boot/compressed/vmlinux OBJCOPY arch/arm/boot/zImage echo ' Kernel: arch/arm/boot/zImage is ready' Kernel: arch/arm/boot/zImage is ready Build with this fix: CHK include/generated/compile.h Kernel: arch/arm/boot/Image is ready LD arch/arm/boot/compressed/vmlinux OBJCOPY arch/arm/boot/zImage Kernel: arch/arm/boot/zImage is ready Signed-off-by: Josh Cartwright Signed-off-by: Russell King diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile index f2aa09e..9137df5 100644 --- a/arch/arm/boot/Makefile +++ b/arch/arm/boot/Makefile @@ -33,7 +33,7 @@ ifeq ($(CONFIG_XIP_KERNEL),y) $(obj)/xipImage: vmlinux FORCE $(call if_changed,objcopy) - $(kecho) ' Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))' + @$(kecho) ' Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))' $(obj)/Image $(obj)/zImage: FORCE @echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)' @@ -48,14 +48,14 @@ $(obj)/xipImage: FORCE $(obj)/Image: vmlinux FORCE $(call if_changed,objcopy) - $(kecho) ' Kernel: $@ is ready' + @$(kecho) ' Kernel: $@ is ready' $(obj)/compressed/vmlinux: $(obj)/Image FORCE $(Q)$(MAKE) $(build)=$(obj)/compressed $@ $(obj)/zImage: $(obj)/compressed/vmlinux FORCE $(call if_changed,objcopy) - $(kecho) ' Kernel: $@ is ready' + @$(kecho) ' Kernel: $@ is ready' endif @@ -90,7 +90,7 @@ fi $(obj)/uImage: $(obj)/zImage FORCE @$(check_for_multiple_loadaddr) $(call if_changed,uimage) - $(kecho) ' Image $@ is ready' + @$(kecho) ' Image $@ is ready' $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE $(Q)$(MAKE) $(build)=$(obj)/bootp $@ @@ -98,7 +98,7 @@ $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE $(obj)/bootpImage: $(obj)/bootp/bootp FORCE $(call if_changed,objcopy) - $(kecho) ' Kernel: $@ is ready' + @$(kecho) ' Kernel: $@ is ready' PHONY += initrd FORCE initrd: diff --git a/arch/arm/tools/Makefile b/arch/arm/tools/Makefile index cd60a81..32d05c8 100644 --- a/arch/arm/tools/Makefile +++ b/arch/arm/tools/Makefile @@ -5,6 +5,6 @@ # include/generated/mach-types.h: $(src)/gen-mach-types $(src)/mach-types - $(kecho) ' Generating $@' + @$(kecho) ' Generating $@' @mkdir -p $(dir $@) $(Q)$(AWK) -f $^ > $@ || { rm -f $@; /bin/false; } -- cgit v0.10.2 From 2b6e204f84cc8e324c5425ea98e378a2aeba3be0 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Wed, 7 Nov 2012 21:22:08 +0100 Subject: ARM: 7572/1: proc-v6.S: fix comment Signed-off-by: Nicolas Pitre Signed-off-by: Russell King diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S index 86b8b48..09c5233 100644 --- a/arch/arm/mm/proc-v6.S +++ b/arch/arm/mm/proc-v6.S @@ -89,7 +89,7 @@ ENTRY(cpu_v6_dcache_clean_area) mov pc, lr /* - * cpu_arm926_switch_mm(pgd_phys, tsk) + * cpu_v6_switch_mm(pgd_phys, tsk) * * Set the translation table base pointer to be pgd_phys * -- cgit v0.10.2 From 6b90466cfec2a2fe027187d675d8d14217c12d82 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 12 Nov 2012 10:16:09 +0100 Subject: HID: microsoft: do not use compound literal - fix build In patch "HID: microsoft: fix invalid rdesc for 3k kbd" I fixed support for MS 3k keyboards. However the added check using memcmp and a compound statement breaks build on architectures where memcmp is a macro with parameters. hid-microsoft.c:51:18: error: macro "memcmp" passed 6 arguments, but takes just 3 On x86_64, memcmp is a function, so I did not see the error. Signed-off-by: Jiri Slaby Reported-by: Geert Uytterhoeven Signed-off-by: Jiri Kosina diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c index f676c01..6fcd466d0 100644 --- a/drivers/hid/hid-microsoft.c +++ b/drivers/hid/hid-microsoft.c @@ -46,9 +46,9 @@ static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc, rdesc[559] = 0x45; } /* the same as above (s/usage/physical/) */ - if ((quirks & MS_RDESC_3K) && *rsize == 106 && - !memcmp((char []){ 0x19, 0x00, 0x29, 0xff }, - &rdesc[94], 4)) { + if ((quirks & MS_RDESC_3K) && *rsize == 106 && rdesc[94] == 0x19 && + rdesc[95] == 0x00 && rdesc[96] == 0x29 && + rdesc[97] == 0xff) { rdesc[94] = 0x35; rdesc[96] = 0x45; } -- cgit v0.10.2 From fa968ee215c0ca91e4a9c3a69ac2405aae6e5d2f Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 7 Nov 2012 10:44:08 +0100 Subject: s390/signal: set correct address space control If user space is running in primary mode it can switch to secondary or access register mode, this is used e.g. in the clock_gettime code of the vdso. If a signal is delivered to the user space process while it has been running in access register mode the signal handler is executed in access register mode as well which will result in a crash most of the time. Set the address space control bits in the PSW to the default for the execution of the signal handler and make sure that the previous address space control is restored on signal return. Take care that user space can not switch to the kernel address space by modifying the registers in the signal frame. Cc: stable@vger.kernel.org Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h index a34a9d6..18cd6b5 100644 --- a/arch/s390/include/asm/compat.h +++ b/arch/s390/include/asm/compat.h @@ -20,7 +20,7 @@ #define PSW32_MASK_CC 0x00003000UL #define PSW32_MASK_PM 0x00000f00UL -#define PSW32_MASK_USER 0x00003F00UL +#define PSW32_MASK_USER 0x0000FF00UL #define PSW32_ADDR_AMODE 0x80000000UL #define PSW32_ADDR_INSN 0x7FFFFFFFUL diff --git a/arch/s390/include/uapi/asm/ptrace.h b/arch/s390/include/uapi/asm/ptrace.h index 705588a..a5ca214 100644 --- a/arch/s390/include/uapi/asm/ptrace.h +++ b/arch/s390/include/uapi/asm/ptrace.h @@ -239,7 +239,7 @@ typedef struct #define PSW_MASK_EA 0x00000000UL #define PSW_MASK_BA 0x00000000UL -#define PSW_MASK_USER 0x00003F00UL +#define PSW_MASK_USER 0x0000FF00UL #define PSW_ADDR_AMODE 0x80000000UL #define PSW_ADDR_INSN 0x7FFFFFFFUL @@ -269,7 +269,7 @@ typedef struct #define PSW_MASK_EA 0x0000000100000000UL #define PSW_MASK_BA 0x0000000080000000UL -#define PSW_MASK_USER 0x00003F8180000000UL +#define PSW_MASK_USER 0x0000FF8180000000UL #define PSW_ADDR_AMODE 0x0000000000000000UL #define PSW_ADDR_INSN 0xFFFFFFFFFFFFFFFFUL diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c index a1e8a86..593fcc9 100644 --- a/arch/s390/kernel/compat_signal.c +++ b/arch/s390/kernel/compat_signal.c @@ -309,6 +309,10 @@ static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs) regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) | (__u64)(regs32.psw.mask & PSW32_MASK_USER) << 32 | (__u64)(regs32.psw.addr & PSW32_ADDR_AMODE); + /* Check for invalid user address space control. */ + if ((regs->psw.mask & PSW_MASK_ASC) >= (psw_kernel_bits & PSW_MASK_ASC)) + regs->psw.mask = (psw_user_bits & PSW_MASK_ASC) | + (regs->psw.mask & ~PSW_MASK_ASC); regs->psw.addr = (__u64)(regs32.psw.addr & PSW32_ADDR_INSN); for (i = 0; i < NUM_GPRS; i++) regs->gprs[i] = (__u64) regs32.gprs[i]; @@ -481,7 +485,10 @@ static int setup_frame32(int sig, struct k_sigaction *ka, /* Set up registers for signal handler */ regs->gprs[15] = (__force __u64) frame; - regs->psw.mask |= PSW_MASK_BA; /* force amode 31 */ + /* Force 31 bit amode and default user address space control. */ + regs->psw.mask = PSW_MASK_BA | + (psw_user_bits & PSW_MASK_ASC) | + (regs->psw.mask & ~PSW_MASK_ASC); regs->psw.addr = (__force __u64) ka->sa.sa_handler; regs->gprs[2] = map_signal(sig); @@ -549,7 +556,10 @@ static int setup_rt_frame32(int sig, struct k_sigaction *ka, siginfo_t *info, /* Set up registers for signal handler */ regs->gprs[15] = (__force __u64) frame; - regs->psw.mask |= PSW_MASK_BA; /* force amode 31 */ + /* Force 31 bit amode and default user address space control. */ + regs->psw.mask = PSW_MASK_BA | + (psw_user_bits & PSW_MASK_ASC) | + (regs->psw.mask & ~PSW_MASK_ASC); regs->psw.addr = (__u64) ka->sa.sa_handler; regs->gprs[2] = map_signal(sig); diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c index c13a2a3..d1259d8 100644 --- a/arch/s390/kernel/signal.c +++ b/arch/s390/kernel/signal.c @@ -136,6 +136,10 @@ static int restore_sigregs(struct pt_regs *regs, _sigregs __user *sregs) /* Use regs->psw.mask instead of psw_user_bits to preserve PER bit. */ regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) | (user_sregs.regs.psw.mask & PSW_MASK_USER); + /* Check for invalid user address space control. */ + if ((regs->psw.mask & PSW_MASK_ASC) >= (psw_kernel_bits & PSW_MASK_ASC)) + regs->psw.mask = (psw_user_bits & PSW_MASK_ASC) | + (regs->psw.mask & ~PSW_MASK_ASC); /* Check for invalid amode */ if (regs->psw.mask & PSW_MASK_EA) regs->psw.mask |= PSW_MASK_BA; @@ -273,7 +277,10 @@ static int setup_frame(int sig, struct k_sigaction *ka, /* Set up registers for signal handler */ regs->gprs[15] = (unsigned long) frame; - regs->psw.mask |= PSW_MASK_EA | PSW_MASK_BA; /* 64 bit amode */ + /* Force default amode and default user address space control. */ + regs->psw.mask = PSW_MASK_EA | PSW_MASK_BA | + (psw_user_bits & PSW_MASK_ASC) | + (regs->psw.mask & ~PSW_MASK_ASC); regs->psw.addr = (unsigned long) ka->sa.sa_handler | PSW_ADDR_AMODE; regs->gprs[2] = map_signal(sig); @@ -346,7 +353,10 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, /* Set up registers for signal handler */ regs->gprs[15] = (unsigned long) frame; - regs->psw.mask |= PSW_MASK_EA | PSW_MASK_BA; /* 64 bit amode */ + /* Force default amode and default user address space control. */ + regs->psw.mask = PSW_MASK_EA | PSW_MASK_BA | + (psw_user_bits & PSW_MASK_ASC) | + (regs->psw.mask & ~PSW_MASK_ASC); regs->psw.addr = (unsigned long) ka->sa.sa_handler | PSW_ADDR_AMODE; regs->gprs[2] = map_signal(sig); -- cgit v0.10.2 From 658e5ce705f2a09ab681eb61ca7c8619bb7a783d Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Sat, 10 Nov 2012 11:04:27 +0100 Subject: s390/topology: fix core id vs physical package id mix-up The current topology code confuses core id vs physical package id. In other words /sys/devices/system/cpu/cpuX/topology/core_id displays the physical_package_id (aka socket id) instead of the core id. The physical_package_id sysfs attribute always displays "-1" instead of the socket id. Fix this mix-up with a small patch which defines and initializes topology_physical_package_id correctly and fixes the broken core id handling. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h index 9ca3053..9935cbd 100644 --- a/arch/s390/include/asm/topology.h +++ b/arch/s390/include/asm/topology.h @@ -8,6 +8,9 @@ struct cpu; #ifdef CONFIG_SCHED_BOOK +extern unsigned char cpu_socket_id[NR_CPUS]; +#define topology_physical_package_id(cpu) (cpu_socket_id[cpu]) + extern unsigned char cpu_core_id[NR_CPUS]; extern cpumask_t cpu_core_map[NR_CPUS]; diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index 54d93f4..dd55f7c 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -40,6 +40,7 @@ static DEFINE_SPINLOCK(topology_lock); static struct mask_info core_info; cpumask_t cpu_core_map[NR_CPUS]; unsigned char cpu_core_id[NR_CPUS]; +unsigned char cpu_socket_id[NR_CPUS]; static struct mask_info book_info; cpumask_t cpu_book_map[NR_CPUS]; @@ -83,11 +84,12 @@ static struct mask_info *add_cpus_to_mask(struct topology_cpu *tl_cpu, cpumask_set_cpu(lcpu, &book->mask); cpu_book_id[lcpu] = book->id; cpumask_set_cpu(lcpu, &core->mask); + cpu_core_id[lcpu] = rcpu; if (one_core_per_cpu) { - cpu_core_id[lcpu] = rcpu; + cpu_socket_id[lcpu] = rcpu; core = core->next; } else { - cpu_core_id[lcpu] = core->id; + cpu_socket_id[lcpu] = core->id; } smp_cpu_set_polarization(lcpu, tl_cpu->pp); } -- cgit v0.10.2 From 43c771a1963ab461a2f194e3c97fded1d5fe262f Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 12 Nov 2012 10:51:34 +0100 Subject: wireless: allow 40 MHz on world roaming channels 12/13 When in world roaming mode, allow 40 MHz to be used on channels 12 and 13 so that an AP that is, e.g., using HT40+ on channel 9 (in the UK) can be used. Cc: stable@vger.kernel.org Reported-by: Eddie Chapman Tested-by: Eddie Chapman Acked-by: Luis R. Rodriguez Signed-off-by: Johannes Berg diff --git a/net/wireless/reg.c b/net/wireless/reg.c index bcc7d7e..b75756b 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -141,9 +141,8 @@ static const struct ieee80211_regdomain world_regdom = { .reg_rules = { /* IEEE 802.11b/g, channels 1..11 */ REG_RULE(2412-10, 2462+10, 40, 6, 20, 0), - /* IEEE 802.11b/g, channels 12..13. No HT40 - * channel fits here. */ - REG_RULE(2467-10, 2472+10, 20, 6, 20, + /* IEEE 802.11b/g, channels 12..13. */ + REG_RULE(2467-10, 2472+10, 40, 6, 20, NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS), /* IEEE 802.11 channel 14 - Only JP enables -- cgit v0.10.2 From 4cf2d3b1b6ff9b7b6af1d2dbf1b63aa465250bc2 Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Mon, 22 Oct 2012 15:57:57 +0200 Subject: clk: ux500: Register i2c clock lookups for u8500 Cc: Ben Dooks Cc: Wolfram Sang Acked-by: Linus Walleij Acked-by: Lee Jones Signed-off-by: Ulf Hansson Signed-off-by: Mike Turquette diff --git a/drivers/clk/ux500/u8500_clk.c b/drivers/clk/ux500/u8500_clk.c index ca4a25e..7ad01aa 100644 --- a/drivers/clk/ux500/u8500_clk.c +++ b/drivers/clk/ux500/u8500_clk.c @@ -228,6 +228,8 @@ void u8500_clk_init(void) clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", U8500_CLKRST1_BASE, BIT(2), 0); + clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.1"); + clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", U8500_CLKRST1_BASE, BIT(3), 0); clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", U8500_CLKRST1_BASE, @@ -239,6 +241,7 @@ void u8500_clk_init(void) clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", U8500_CLKRST1_BASE, BIT(6), 0); + clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.2"); clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", U8500_CLKRST1_BASE, BIT(7), 0); @@ -255,11 +258,14 @@ void u8500_clk_init(void) clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", U8500_CLKRST1_BASE, BIT(10), 0); + clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.4"); + clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", U8500_CLKRST1_BASE, BIT(11), 0); clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", U8500_CLKRST2_BASE, BIT(0), 0); + clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.3"); clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", U8500_CLKRST2_BASE, BIT(1), 0); @@ -284,7 +290,6 @@ void u8500_clk_init(void) BIT(6), 0); clk_register_clkdev(clk, "apb_pclk", "sdi1"); - clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", U8500_CLKRST2_BASE, BIT(7), 0); clk_register_clkdev(clk, "apb_pclk", "sdi3"); @@ -318,8 +323,10 @@ void u8500_clk_init(void) BIT(1), 0); clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", U8500_CLKRST3_BASE, BIT(2), 0); + clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", U8500_CLKRST3_BASE, BIT(3), 0); + clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.0"); clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", U8500_CLKRST3_BASE, BIT(4), 0); @@ -401,6 +408,8 @@ void u8500_clk_init(void) clk = clk_reg_prcc_kclk("p1_i2c1_kclk", "i2cclk", U8500_CLKRST1_BASE, BIT(2), CLK_SET_RATE_GATE); + clk_register_clkdev(clk, NULL, "nmk-i2c.1"); + clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk", U8500_CLKRST1_BASE, BIT(3), CLK_SET_RATE_GATE); clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk", @@ -412,17 +421,23 @@ void u8500_clk_init(void) clk = clk_reg_prcc_kclk("p1_i2c2_kclk", "i2cclk", U8500_CLKRST1_BASE, BIT(6), CLK_SET_RATE_GATE); + clk_register_clkdev(clk, NULL, "nmk-i2c.2"); + clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk", U8500_CLKRST1_BASE, BIT(3), CLK_SET_RATE_GATE); /* FIXME: Redefinition of BIT(3). */ + clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk", U8500_CLKRST1_BASE, BIT(9), CLK_SET_RATE_GATE); + clk_register_clkdev(clk, NULL, "nmk-i2c.4"); + clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk", U8500_CLKRST1_BASE, BIT(10), CLK_SET_RATE_GATE); /* Periph2 */ clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk", U8500_CLKRST2_BASE, BIT(0), CLK_SET_RATE_GATE); + clk_register_clkdev(clk, NULL, "nmk-i2c.3"); clk = clk_reg_prcc_kclk("p2_sdi4_kclk", "sdmmcclk", U8500_CLKRST2_BASE, BIT(2), CLK_SET_RATE_GATE); @@ -452,8 +467,10 @@ void u8500_clk_init(void) U8500_CLKRST3_BASE, BIT(1), CLK_SET_RATE_GATE); clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk", U8500_CLKRST3_BASE, BIT(2), CLK_SET_RATE_GATE); + clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk", U8500_CLKRST3_BASE, BIT(3), CLK_SET_RATE_GATE); + clk_register_clkdev(clk, NULL, "nmk-i2c.0"); clk = clk_reg_prcc_kclk("p3_sdi2_kclk", "sdmmcclk", U8500_CLKRST3_BASE, BIT(4), CLK_SET_RATE_GATE); -- cgit v0.10.2 From 08b1f1c7b9bf0f6fe9e2ce3369928955554a958b Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Mon, 22 Oct 2012 15:57:58 +0200 Subject: clk: ux500: Register ssp clock lookups for u8500 Signed-off-by: Ulf Hansson Acked-by: Linus Walleij Acked-by: Lee Jones Signed-off-by: Mike Turquette diff --git a/drivers/clk/ux500/u8500_clk.c b/drivers/clk/ux500/u8500_clk.c index 7ad01aa..36ef41d 100644 --- a/drivers/clk/ux500/u8500_clk.c +++ b/drivers/clk/ux500/u8500_clk.c @@ -321,8 +321,11 @@ void u8500_clk_init(void) clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", U8500_CLKRST3_BASE, BIT(1), 0); + clk_register_clkdev(clk, "apb_pclk", "ssp0"); + clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", U8500_CLKRST3_BASE, BIT(2), 0); + clk_register_clkdev(clk, "apb_pclk", "ssp1"); clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", U8500_CLKRST3_BASE, BIT(3), 0); @@ -465,8 +468,11 @@ void u8500_clk_init(void) /* Periph3 */ clk = clk_reg_prcc_kclk("p3_ssp0_kclk", "sspclk", U8500_CLKRST3_BASE, BIT(1), CLK_SET_RATE_GATE); + clk_register_clkdev(clk, NULL, "ssp0"); + clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk", U8500_CLKRST3_BASE, BIT(2), CLK_SET_RATE_GATE); + clk_register_clkdev(clk, NULL, "ssp1"); clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk", U8500_CLKRST3_BASE, BIT(3), CLK_SET_RATE_GATE); -- cgit v0.10.2 From 15e66cd8d029de8055822a98c5a72a4414ffc0a6 Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Mon, 22 Oct 2012 15:57:59 +0200 Subject: clk: ux500: Register msp clock lookups for u8500 Cc: Mark Brown Signed-off-by: Ulf Hansson Acked-by: Linus Walleij Acked-by: Lee Jones Signed-off-by: Mike Turquette diff --git a/drivers/clk/ux500/u8500_clk.c b/drivers/clk/ux500/u8500_clk.c index 36ef41d..be843ba 100644 --- a/drivers/clk/ux500/u8500_clk.c +++ b/drivers/clk/ux500/u8500_clk.c @@ -232,8 +232,13 @@ void u8500_clk_init(void) clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", U8500_CLKRST1_BASE, BIT(3), 0); + clk_register_clkdev(clk, "apb_pclk", "msp0"); + clk_register_clkdev(clk, "apb_pclk", "ux500-msp-i2s.0"); + clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", U8500_CLKRST1_BASE, BIT(4), 0); + clk_register_clkdev(clk, "apb_pclk", "msp1"); + clk_register_clkdev(clk, "apb_pclk", "ux500-msp-i2s.1"); clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", U8500_CLKRST1_BASE, BIT(5), 0); @@ -262,6 +267,8 @@ void u8500_clk_init(void) clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", U8500_CLKRST1_BASE, BIT(11), 0); + clk_register_clkdev(clk, "apb_pclk", "msp3"); + clk_register_clkdev(clk, "apb_pclk", "ux500-msp-i2s.3"); clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", U8500_CLKRST2_BASE, BIT(0), 0); @@ -285,6 +292,8 @@ void u8500_clk_init(void) clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", U8500_CLKRST2_BASE, BIT(5), 0); + clk_register_clkdev(clk, "apb_pclk", "msp2"); + clk_register_clkdev(clk, "apb_pclk", "ux500-msp-i2s.2"); clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", U8500_CLKRST2_BASE, BIT(6), 0); @@ -415,8 +424,13 @@ void u8500_clk_init(void) clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk", U8500_CLKRST1_BASE, BIT(3), CLK_SET_RATE_GATE); + clk_register_clkdev(clk, NULL, "msp0"); + clk_register_clkdev(clk, NULL, "ux500-msp-i2s.0"); + clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk", U8500_CLKRST1_BASE, BIT(4), CLK_SET_RATE_GATE); + clk_register_clkdev(clk, NULL, "msp1"); + clk_register_clkdev(clk, NULL, "ux500-msp-i2s.1"); clk = clk_reg_prcc_kclk("p1_sdi0_kclk", "sdmmcclk", U8500_CLKRST1_BASE, BIT(5), CLK_SET_RATE_GATE); @@ -436,6 +450,8 @@ void u8500_clk_init(void) clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk", U8500_CLKRST1_BASE, BIT(10), CLK_SET_RATE_GATE); + clk_register_clkdev(clk, NULL, "msp3"); + clk_register_clkdev(clk, NULL, "ux500-msp-i2s.3"); /* Periph2 */ clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk", @@ -448,6 +464,8 @@ void u8500_clk_init(void) clk = clk_reg_prcc_kclk("p2_msp2_kclk", "msp02clk", U8500_CLKRST2_BASE, BIT(3), CLK_SET_RATE_GATE); + clk_register_clkdev(clk, NULL, "msp2"); + clk_register_clkdev(clk, NULL, "ux500-msp-i2s.2"); clk = clk_reg_prcc_kclk("p2_sdi1_kclk", "sdmmcclk", U8500_CLKRST2_BASE, BIT(4), CLK_SET_RATE_GATE); -- cgit v0.10.2 From d4915cf5f6190b94411c3102078ac4b86149fe59 Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Mon, 22 Oct 2012 15:58:00 +0200 Subject: clk: ux500: Update rtc clock lookup for u8500 Signed-off-by: Ulf Hansson Acked-by: Linus Walleij Acked-by: Lee Jones Signed-off-by: Mike Turquette diff --git a/drivers/clk/ux500/u8500_clk.c b/drivers/clk/ux500/u8500_clk.c index be843ba..0aae929 100644 --- a/drivers/clk/ux500/u8500_clk.c +++ b/drivers/clk/ux500/u8500_clk.c @@ -40,7 +40,7 @@ void u8500_clk_init(void) CLK_IS_ROOT|CLK_IGNORE_UNUSED, 32768); clk_register_clkdev(clk, "clk32k", NULL); - clk_register_clkdev(clk, NULL, "rtc-pl031"); + clk_register_clkdev(clk, "apb_pclk", "rtc-pl031"); /* PRCMU clocks */ fw_version = prcmu_get_fw_version(); -- cgit v0.10.2 From 3d930678034e756d0960d214412d344772b21109 Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Mon, 22 Oct 2012 15:58:01 +0200 Subject: clk: ux500: Register slimbus clock lookups for u8500 At the same time the prcc bit for the kclk is corrected to bit 8 instead of 3. Signed-off-by: Ulf Hansson Acked-by: Linus Walleij Acked-by: Lee Jones Signed-off-by: Mike Turquette diff --git a/drivers/clk/ux500/u8500_clk.c b/drivers/clk/ux500/u8500_clk.c index 0aae929..e2c17d1 100644 --- a/drivers/clk/ux500/u8500_clk.c +++ b/drivers/clk/ux500/u8500_clk.c @@ -254,6 +254,7 @@ void u8500_clk_init(void) clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", U8500_CLKRST1_BASE, BIT(8), 0); + clk_register_clkdev(clk, "apb_pclk", "slimbus0"); clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", U8500_CLKRST1_BASE, BIT(9), 0); @@ -441,8 +442,8 @@ void u8500_clk_init(void) clk_register_clkdev(clk, NULL, "nmk-i2c.2"); clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk", - U8500_CLKRST1_BASE, BIT(3), CLK_SET_RATE_GATE); - /* FIXME: Redefinition of BIT(3). */ + U8500_CLKRST1_BASE, BIT(8), CLK_SET_RATE_GATE); + clk_register_clkdev(clk, NULL, "slimbus0"); clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk", U8500_CLKRST1_BASE, BIT(9), CLK_SET_RATE_GATE); -- cgit v0.10.2 From d0ddfbd3d1346c1f481ec2289eef350cdba64b42 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Mon, 12 Nov 2012 18:31:35 +0200 Subject: drm/i915/sdvo: clean up connectors on intel_sdvo_init() failures Any failures in intel_sdvo_init() after the intel_sdvo_setup_output() call left behind ghost connectors, attached (with a dangling pointer) to the sdvo that has been cleaned up and freed. Properly destroy any connectors attached to the encoder. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=46381 CC: Chris Wilson Signed-off-by: Jani Nikula Cc: stable@vger.kernel.org Tested-by: bjo@nord-west.org [danvet: added a comment to explain why we need to clean up connectors even when sdvo_output_setup fails.] Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 79d308d..c600fb0 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -2382,6 +2382,18 @@ intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags) return true; } +static void intel_sdvo_output_cleanup(struct intel_sdvo *intel_sdvo) +{ + struct drm_device *dev = intel_sdvo->base.base.dev; + struct drm_connector *connector, *tmp; + + list_for_each_entry_safe(connector, tmp, + &dev->mode_config.connector_list, head) { + if (intel_attached_encoder(connector) == &intel_sdvo->base) + intel_sdvo_destroy(connector); + } +} + static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo, struct intel_sdvo_connector *intel_sdvo_connector, int type) @@ -2705,7 +2717,8 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob) intel_sdvo->caps.output_flags) != true) { DRM_DEBUG_KMS("SDVO output failed to setup on %s\n", SDVO_NAME(intel_sdvo)); - goto err; + /* Output_setup can leave behind connectors! */ + goto err_output; } /* Only enable the hotplug irq if we need it, to work around noisy @@ -2718,12 +2731,12 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob) /* Set the input timing to the screen. Assume always input 0. */ if (!intel_sdvo_set_target_input(intel_sdvo)) - goto err; + goto err_output; if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo, &intel_sdvo->pixel_clock_min, &intel_sdvo->pixel_clock_max)) - goto err; + goto err_output; DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, " "clock range %dMHz - %dMHz, " @@ -2743,6 +2756,9 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob) (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N'); return true; +err_output: + intel_sdvo_output_cleanup(intel_sdvo); + err: drm_encoder_cleanup(&intel_encoder->base); i2c_del_adapter(&intel_sdvo->ddc); -- cgit v0.10.2 From 1ef43369c681bf30a980a4ba42df20514b15fdda Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Thu, 8 Nov 2012 11:08:50 -0800 Subject: ARM: OMAP4: TWL: mux sys_drm_msecure as output for PMIC On OMAP4 boards using the TWL6030 PMIC, the sys_drm_msecure is connected to the MSECURE input of the TWL6030 PMIC. This signal controls the secure-mode operation of the PMIC. If its not mux'd correctly, some functionality of the PMIC will not be accessible since the PMIC will be in secure mode. For example, if the TWL RTC is in secure mode, most of its registers are read-only, meaning (re)programming the RTC (e.g. for wakeup from suspend) will fail. To fix, ensure the signal is properly mux'd as output when TWL is intialized. This fix is required when using recent versions of u-boot (>= v2012.04.01) since u-boot is no longer setting the default mux for this pin. Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c index 635e109..96cae8b 100644 --- a/arch/arm/mach-omap2/twl-common.c +++ b/arch/arm/mach-omap2/twl-common.c @@ -73,6 +73,7 @@ void __init omap4_pmic_init(const char *pmic_type, { /* PMIC part*/ omap_mux_init_signal("sys_nirq1", OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE); + omap_mux_init_signal("fref_clk0_out.sys_drm_msecure", OMAP_PIN_OUTPUT); omap_pmic_init(1, 400, pmic_type, 7 + OMAP44XX_IRQ_GIC_START, pmic_data); /* Register additional devices on i2c1 bus if needed */ -- cgit v0.10.2 From 2d4d07b97c0b774ea9ce2a2105818208d3df7241 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 24 Oct 2012 16:37:28 -0200 Subject: ARM: boot: Fix usage of kecho Since commit edc88ceb0 (ARM: be really quiet when building with 'make -s') the following output is generated when building a kernel for ARM: echo ' Kernel: arch/arm/boot/Image is ready' Kernel: arch/arm/boot/Image is ready Building modules, stage 2. echo ' Kernel: arch/arm/boot/zImage is ready' Kernel: arch/arm/boot/zImage is ready As per Documentation/kbuild/makefiles.txt the correct way of using kecho is '@$(kecho)'. Make this change so no more unwanted 'echo' messages are displayed. Signed-off-by: Fabio Estevam Signed-off-by: Arnd Bergmann diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile index f2aa09e..9137df5 100644 --- a/arch/arm/boot/Makefile +++ b/arch/arm/boot/Makefile @@ -33,7 +33,7 @@ ifeq ($(CONFIG_XIP_KERNEL),y) $(obj)/xipImage: vmlinux FORCE $(call if_changed,objcopy) - $(kecho) ' Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))' + @$(kecho) ' Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))' $(obj)/Image $(obj)/zImage: FORCE @echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)' @@ -48,14 +48,14 @@ $(obj)/xipImage: FORCE $(obj)/Image: vmlinux FORCE $(call if_changed,objcopy) - $(kecho) ' Kernel: $@ is ready' + @$(kecho) ' Kernel: $@ is ready' $(obj)/compressed/vmlinux: $(obj)/Image FORCE $(Q)$(MAKE) $(build)=$(obj)/compressed $@ $(obj)/zImage: $(obj)/compressed/vmlinux FORCE $(call if_changed,objcopy) - $(kecho) ' Kernel: $@ is ready' + @$(kecho) ' Kernel: $@ is ready' endif @@ -90,7 +90,7 @@ fi $(obj)/uImage: $(obj)/zImage FORCE @$(check_for_multiple_loadaddr) $(call if_changed,uimage) - $(kecho) ' Image $@ is ready' + @$(kecho) ' Image $@ is ready' $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE $(Q)$(MAKE) $(build)=$(obj)/bootp $@ @@ -98,7 +98,7 @@ $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE $(obj)/bootpImage: $(obj)/bootp/bootp FORCE $(call if_changed,objcopy) - $(kecho) ' Kernel: $@ is ready' + @$(kecho) ' Kernel: $@ is ready' PHONY += initrd FORCE initrd: diff --git a/arch/arm/tools/Makefile b/arch/arm/tools/Makefile index cd60a81..32d05c8 100644 --- a/arch/arm/tools/Makefile +++ b/arch/arm/tools/Makefile @@ -5,6 +5,6 @@ # include/generated/mach-types.h: $(src)/gen-mach-types $(src)/mach-types - $(kecho) ' Generating $@' + @$(kecho) ' Generating $@' @mkdir -p $(dir $@) $(Q)$(AWK) -f $^ > $@ || { rm -f $@; /bin/false; } -- cgit v0.10.2 From 6d1068b3a98519247d8ba4ec85cd40ac136dbdf9 Mon Sep 17 00:00:00 2001 From: Petr Matousek Date: Tue, 6 Nov 2012 19:24:07 +0100 Subject: KVM: x86: invalid opcode oops on SET_SREGS with OSXSAVE bit set (CVE-2012-4461) On hosts without the XSAVE support unprivileged local user can trigger oops similar to the one below by setting X86_CR4_OSXSAVE bit in guest cr4 register using KVM_SET_SREGS ioctl and later issuing KVM_RUN ioctl. invalid opcode: 0000 [#2] SMP Modules linked in: tun ip6table_filter ip6_tables ebtable_nat ebtables ... Pid: 24935, comm: zoog_kvm_monito Tainted: G D 3.2.0-3-686-pae EIP: 0060:[] EFLAGS: 00210246 CPU: 0 EIP is at kvm_arch_vcpu_ioctl_run+0x92a/0xd13 [kvm] EAX: 00000001 EBX: 000f387e ECX: 00000000 EDX: 00000000 ESI: 00000000 EDI: 00000000 EBP: ef5a0060 ESP: d7c63e70 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Process zoog_kvm_monito (pid: 24935, ti=d7c62000 task=ed84a0c0 task.ti=d7c62000) Stack: 00000001 f70a1200 f8b940a9 ef5a0060 00000000 00200202 f8769009 00000000 ef5a0060 000f387e eda5c020 8722f9c8 00015bae 00000000 ed84a0c0 ed84a0c0 c12bf02d 0000ae80 ef7f8740 fffffffb f359b740 ef5a0060 f8b85dc1 0000ae80 Call Trace: [] ? kvm_arch_vcpu_ioctl_set_sregs+0x2fe/0x308 [kvm] ... [] ? syscall_call+0x7/0xb Code: 89 e8 e8 14 ee ff ff ba 00 00 04 00 89 e8 e8 98 48 ff ff 85 c0 74 1e 83 7d 48 00 75 18 8b 85 08 07 00 00 31 c9 8b 95 0c 07 00 00 <0f> 01 d1 c7 45 48 01 00 00 00 c7 45 1c 01 00 00 00 0f ae f0 89 EIP: [] kvm_arch_vcpu_ioctl_run+0x92a/0xd13 [kvm] SS:ESP 0068:d7c63e70 QEMU first retrieves the supported features via KVM_GET_SUPPORTED_CPUID and then sets them later. So guest's X86_FEATURE_XSAVE should be masked out on hosts without X86_FEATURE_XSAVE, making kvm_set_cr4 with X86_CR4_OSXSAVE fail. Userspaces that allow specifying guest cpuid with X86_FEATURE_XSAVE even on hosts that do not support it, might be susceptible to this attack from inside the guest as well. Allow setting X86_CR4_OSXSAVE bit only if host has XSAVE support. Signed-off-by: Petr Matousek Signed-off-by: Marcelo Tosatti diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h index a10e460..58fc514 100644 --- a/arch/x86/kvm/cpuid.h +++ b/arch/x86/kvm/cpuid.h @@ -24,6 +24,9 @@ static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu) { struct kvm_cpuid_entry2 *best; + if (!static_cpu_has(X86_FEATURE_XSAVE)) + return 0; + best = kvm_find_cpuid_entry(vcpu, 1, 0); return best && (best->ecx & bit(X86_FEATURE_XSAVE)); } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 224a7e7..4f76417 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5781,6 +5781,9 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, int pending_vec, max_bits, idx; struct desc_ptr dt; + if (!guest_cpuid_has_xsave(vcpu) && (sregs->cr4 & X86_CR4_OSXSAVE)) + return -EINVAL; + dt.size = sregs->idt.limit; dt.address = sregs->idt.base; kvm_x86_ops->set_idt(vcpu, &dt); -- cgit v0.10.2 From 5574f7745436d2014fcba1163f820d132e816c85 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Sat, 10 Nov 2012 19:52:50 +0100 Subject: ASoC: cs4271: free allocated GPIO In case of probe deferral, the allocated GPIO line is not freed, which prevents it from being claimed and properly asserted in later attempts. Fix this by using devm_gpio_request(). Signed-off-by: Daniel Mack Reported-by: Michael Hirsch Cc: Alexander Sverdlin Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/cs4271.c b/sound/soc/codecs/cs4271.c index f994af3..e3f0a7f 100644 --- a/sound/soc/codecs/cs4271.c +++ b/sound/soc/codecs/cs4271.c @@ -485,7 +485,7 @@ static int cs4271_probe(struct snd_soc_codec *codec) gpio_nreset = cs4271plat->gpio_nreset; if (gpio_nreset >= 0) - if (gpio_request(gpio_nreset, "CS4271 Reset")) + if (devm_gpio_request(codec->dev, gpio_nreset, "CS4271 Reset")) gpio_nreset = -EINVAL; if (gpio_nreset >= 0) { /* Reset codec */ @@ -535,15 +535,10 @@ static int cs4271_probe(struct snd_soc_codec *codec) static int cs4271_remove(struct snd_soc_codec *codec) { struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); - int gpio_nreset; - gpio_nreset = cs4271->gpio_nreset; - - if (gpio_is_valid(gpio_nreset)) { + if (gpio_is_valid(cs4271->gpio_nreset)) /* Set codec to the reset state */ - gpio_set_value(gpio_nreset, 0); - gpio_free(gpio_nreset); - } + gpio_set_value(cs4271->gpio_nreset, 0); return 0; }; -- cgit v0.10.2 From d2153a1595ee8235ecf9f9e2d1ac18eee373cbb5 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 13 Nov 2012 10:44:54 +0300 Subject: ALSA: es1968: precedence bug in snd_es1968_tea575x_get_pins() I don't think this works as intended. '|' higher precedence than ?: so the bitwize OR "0 | (val & STR_MOST)" is a no-op. I have re-written it to be more clear. Signed-off-by: Dan Carpenter Signed-off-by: Takashi Iwai diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c index 50169bc..7266020 100644 --- a/sound/pci/es1968.c +++ b/sound/pci/es1968.c @@ -2581,9 +2581,14 @@ static u8 snd_es1968_tea575x_get_pins(struct snd_tea575x *tea) struct es1968 *chip = tea->private_data; unsigned long io = chip->io_port + GPIO_DATA; u16 val = inw(io); - - return (val & STR_DATA) ? TEA575X_DATA : 0 | - (val & STR_MOST) ? TEA575X_MOST : 0; + u8 ret; + + ret = 0; + if (val & STR_DATA) + ret |= TEA575X_DATA; + if (val & STR_MOST) + ret |= TEA575X_MOST; + return ret; } static void snd_es1968_tea575x_set_direction(struct snd_tea575x *tea, bool output) -- cgit v0.10.2 From 703fb94ec58e0e8769380c2877a8a34aeb5b6c97 Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Tue, 13 Nov 2012 08:52:24 +0100 Subject: xfrm: Fix the gc threshold value for ipv4 The xfrm gc threshold value depends on ip_rt_max_size. This value was set to INT_MAX with the routing cache removal patch, so we start doing garbage collecting when we have INT_MAX/2 IPsec routes cached. Fix this by going back to the static threshold of 1024 routes. Signed-off-by: Steffen Klassert diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 6f0ba01..63445ed 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -1351,7 +1351,7 @@ struct xfrm6_tunnel { }; extern void xfrm_init(void); -extern void xfrm4_init(int rt_hash_size); +extern void xfrm4_init(void); extern int xfrm_state_init(struct net *net); extern void xfrm_state_fini(struct net *net); extern void xfrm4_state_init(void); diff --git a/net/ipv4/route.c b/net/ipv4/route.c index a8c6512..200d287 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -2597,7 +2597,7 @@ int __init ip_rt_init(void) pr_err("Unable to create route proc files\n"); #ifdef CONFIG_XFRM xfrm_init(); - xfrm4_init(ip_rt_max_size); + xfrm4_init(); #endif rtnl_register(PF_INET, RTM_GETROUTE, inet_rtm_getroute, NULL, NULL); diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c index 05c5ab8..3be0ac2 100644 --- a/net/ipv4/xfrm4_policy.c +++ b/net/ipv4/xfrm4_policy.c @@ -279,19 +279,8 @@ static void __exit xfrm4_policy_fini(void) xfrm_policy_unregister_afinfo(&xfrm4_policy_afinfo); } -void __init xfrm4_init(int rt_max_size) +void __init xfrm4_init(void) { - /* - * Select a default value for the gc_thresh based on the main route - * table hash size. It seems to me the worst case scenario is when - * we have ipsec operating in transport mode, in which we create a - * dst_entry per socket. The xfrm gc algorithm starts trying to remove - * entries at gc_thresh, and prevents new allocations as 2*gc_thresh - * so lets set an initial xfrm gc_thresh value at the rt_max_size/2. - * That will let us store an ipsec connection per route table entry, - * and start cleaning when were 1/2 full - */ - xfrm4_dst_ops.gc_thresh = rt_max_size/2; dst_entries_init(&xfrm4_dst_ops); xfrm4_state_init(); -- cgit v0.10.2 From d55c4c613fc4d4ad2ba0fc6fa2b57176d420f7e4 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 22 Oct 2012 15:49:02 +0200 Subject: s390/gup: add missing TASK_SIZE check to get_user_pages_fast() When walking page tables we need to make sure that everything is within bounds of the ASCE limit of the task's address space. Otherwise we might calculate e.g. a pud pointer which is not within a pud and dereference it. So check against TASK_SIZE (which is the ASCE limit) before walking page tables. Reviewed-by: Gerald Schaefer Cc: stable@vger.kernel.org Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c index 8b82853..16fb3c1 100644 --- a/arch/s390/mm/gup.c +++ b/arch/s390/mm/gup.c @@ -229,7 +229,7 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write, addr = start; len = (unsigned long) nr_pages << PAGE_SHIFT; end = start + len; - if (end < start) + if ((end < start) || (end > TASK_SIZE)) goto slow_irqon; /* -- cgit v0.10.2 From 516bad44b9f3bdcb0be6be0252b7557bf7a149e4 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 22 Oct 2012 15:58:26 +0200 Subject: s390/gup: fix access_ok() usage in __get_user_pages_fast() access_ok() returns always "true" on s390. Therefore all access_ok() invocations are rather pointless. However when walking page tables we need to make sure that everything is within bounds of the ASCE limit of the task's address space. So remove the access_ok() call and add the same check we have in get_user_pages_fast(). Reviewed-by: Gerald Schaefer Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c index 16fb3c1..1f5315d1 100644 --- a/arch/s390/mm/gup.c +++ b/arch/s390/mm/gup.c @@ -180,8 +180,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write, addr = start; len = (unsigned long) nr_pages << PAGE_SHIFT; end = start + len; - if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ, - (void __user *)start, len))) + if ((end < start) || (end > TASK_SIZE)) return 0; local_irq_save(flags); -- cgit v0.10.2 From 4bffbb3455372a26816e364fb4448810f7014452 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 8 Nov 2012 14:18:47 +0100 Subject: s390/mm: have 16 byte aligned struct pages Select HAVE_ALIGNED_STRUCT_PAGE on s390, so that the slub allocator can make use of compare and swap double for lockless updates. This increases the size of struct page to 64 bytes (instead of 56 bytes), however the performance gain justifies the increased size: - now excactly four struct pages fit into a single cache line; the case that accessing a struct page causes two cache line loads does not exist anymore. - calculating the offset of a struct page within the memmap array is only a simple shift instead of a more expensive multiplication. A "hackbench 200 process 200" run on a 32 cpu system did show an 8% runtime improvement. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 5dba755..d385f39 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -96,6 +96,7 @@ config S390 select HAVE_MEMBLOCK_NODE_MAP select HAVE_CMPXCHG_LOCAL select HAVE_CMPXCHG_DOUBLE + select HAVE_ALIGNED_STRUCT_PAGE if SLUB select HAVE_VIRT_CPU_ACCOUNTING select VIRT_CPU_ACCOUNTING select ARCH_DISCARD_MEMBLOCK -- cgit v0.10.2 From 2f4f649a69a9eb51f6e98130e19dd90a260a4145 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Mon, 12 Nov 2012 14:33:44 +0200 Subject: drm/i915: do not ignore eDP bpc settings from vbt There are laptops out there that need the eDP bpc from VBT. This is effectively a revert of commit 4344b813f105a19f793f1fd93ad775b784648b95 Author: Daniel Vetter Date: Fri Aug 10 11:10:20 2012 +0200 drm/i915: ignore eDP bpc settings from vbt but putting the VBT check after the EDID check to see them both in dmesg if this clamps more than the EDID. We have enough history with bpc clamping to warrant the extra debug info. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47641 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=56401 Signed-off-by: Jani Nikula Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 461a637..4154bcd 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3841,6 +3841,17 @@ static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc, } } + if (intel_encoder->type == INTEL_OUTPUT_EDP) { + /* Use VBT settings if we have an eDP panel */ + unsigned int edp_bpc = dev_priv->edp.bpp / 3; + + if (edp_bpc < display_bpc) { + DRM_DEBUG_KMS("clamping display bpc (was %d) to eDP (%d)\n", display_bpc, edp_bpc); + display_bpc = edp_bpc; + } + continue; + } + /* * HDMI is either 12 or 8, so if the display lets 10bpc sneak * through, clamp it down. (Note: >12bpc will be caught below.) -- cgit v0.10.2 From 49bd665c5407a453736d3232ee58f2906b42e83c Mon Sep 17 00:00:00 2001 From: Maciej Patelczyk Date: Mon, 15 Oct 2012 14:29:03 +0200 Subject: [SCSI] isci: copy fis 0x34 response into proper buffer SATA MICROCODE DOWNALOAD fails on isci driver. After receiving Register Device to Host (FIS 0x34) frame Initiator resets phy. In the frame handler routine response (FIS 0x34) was copied into wrong buffer and upper layer did not receive any answer which resulted in timeout and reset. This patch corrects this bug. Signed-off-by: Maciej Patelczyk Signed-off-by: Lukasz Dorau Cc: Signed-off-by: James Bottomley diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index c1bafc3..9594ab6 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -1972,7 +1972,7 @@ sci_io_request_frame_handler(struct isci_request *ireq, frame_index, (void **)&frame_buffer); - sci_controller_copy_sata_response(&ireq->stp.req, + sci_controller_copy_sata_response(&ireq->stp.rsp, frame_header, frame_buffer); -- cgit v0.10.2 From 225ae5fd9a320e22841410049c3bdb6cf14a5841 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 13 Nov 2012 10:41:50 +0100 Subject: MIPS: Malta: Fix interupt number of CBUS UART. The CBUS UART's interrupt number was wrong conflicting with the interrupt being tied to the Intel PIIX4. Since the PIIX4's interrupt is registered before the CBUS UART which is not being used on most systems this would not be noticed. Attempts to open the ttyS2 CBUS UART would result in: genirq: Flags mismatch irq 18. 00000000 (serial) vs. 00010000 (XT-PIC cascade) serial_link_irq_chain: request failed: -16 for irq: 18 Qemu was written to match the kernel so will need to be fixed also. Signed-off-by: Ralf Baechle diff --git a/arch/mips/mti-malta/malta-platform.c b/arch/mips/mti-malta/malta-platform.c index 80562b8..7473217 100644 --- a/arch/mips/mti-malta/malta-platform.c +++ b/arch/mips/mti-malta/malta-platform.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #define SMC_PORT(base, int) \ @@ -48,7 +49,7 @@ static struct plat_serial8250_port uart8250_data[] = { SMC_PORT(0x2F8, 3), { .mapbase = 0x1f000900, /* The CBUS UART */ - .irq = MIPS_CPU_IRQ_BASE + 2, + .irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_MB2, .uartclk = 3686400, /* Twice the usual clk! */ .iotype = UPIO_MEM32, .flags = CBUS_UART_FLAGS, -- cgit v0.10.2 From f0e3e35c9049087172c65302b42da8fe7ebb63a8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Sat, 10 Nov 2012 10:13:42 +0100 Subject: USB: keyspan: fix typo causing GPF on open MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit f79b2d0f (USB: keyspan: fix NULL-pointer dereferences and memory leaks) had a small typo which made the driver use wrong offsets when mapping serial port private data. This results in in a GPF when the port is opened. Reported-by: Richard Cc: stable Signed-off-by: Bjørn Mork Acked-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index 7179b0c..cff8dd5 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -2430,7 +2430,7 @@ static void keyspan_release(struct usb_serial *serial) static int keyspan_port_probe(struct usb_serial_port *port) { struct usb_serial *serial = port->serial; - struct keyspan_port_private *s_priv; + struct keyspan_serial_private *s_priv; struct keyspan_port_private *p_priv; const struct keyspan_device_details *d_details; struct callbacks *cback; @@ -2445,7 +2445,6 @@ static int keyspan_port_probe(struct usb_serial_port *port) if (!p_priv) return -ENOMEM; - s_priv = usb_get_serial_data(port->serial); p_priv->device_details = d_details; /* Setup values for the various callback routines */ -- cgit v0.10.2 From fcb21645f1bd86d2be29baf48aa1b298de52ccc7 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 8 Nov 2012 11:56:42 -0600 Subject: USB: option: add Novatel E362 and Dell Wireless 5800 USB IDs The Dell 5800 appears to be a simple rebrand of the Novatel E362. Signed-off-by: Dan Williams Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 5dee7d6..c25d3fd 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -158,6 +158,7 @@ static void option_instat_callback(struct urb *urb); #define NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_HIGHSPEED 0x8001 #define NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_FULLSPEED 0x9000 #define NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_HIGHSPEED 0x9001 +#define NOVATELWIRELESS_PRODUCT_E362 0x9010 #define NOVATELWIRELESS_PRODUCT_G1 0xA001 #define NOVATELWIRELESS_PRODUCT_G1_M 0xA002 #define NOVATELWIRELESS_PRODUCT_G2 0xA010 @@ -193,6 +194,9 @@ static void option_instat_callback(struct urb *urb); #define DELL_PRODUCT_5730_MINICARD_TELUS 0x8181 #define DELL_PRODUCT_5730_MINICARD_VZW 0x8182 +#define DELL_PRODUCT_5800_MINICARD_VZW 0x8195 /* Novatel E362 */ +#define DELL_PRODUCT_5800_V2_MINICARD_VZW 0x8196 /* Novatel E362 */ + #define KYOCERA_VENDOR_ID 0x0c88 #define KYOCERA_PRODUCT_KPC650 0x17da #define KYOCERA_PRODUCT_KPC680 0x180a @@ -706,6 +710,7 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_G2) }, /* Novatel Ovation MC551 a.k.a. Verizon USB551L */ { USB_DEVICE_AND_INTERFACE_INFO(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC551, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E362, 0xff, 0xff, 0xff) }, { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) }, { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) }, @@ -728,6 +733,8 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_SPRINT) }, /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */ { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_TELUS) }, /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */ { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_VZW) }, /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */ + { USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5800_MINICARD_VZW, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5800_V2_MINICARD_VZW, 0xff, 0xff, 0xff) }, { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) }, /* ADU-E100, ADU-310 */ { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) }, { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) }, -- cgit v0.10.2 From c0bc3098871dd9b964f6b45ec1e4d70d87811744 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 8 Nov 2012 11:56:53 -0600 Subject: USB: option: add Alcatel X220/X500D USB IDs Signed-off-by: Dan Williams Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index c25d3fd..edc64bb 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -287,6 +287,7 @@ static void option_instat_callback(struct urb *urb); /* ALCATEL PRODUCTS */ #define ALCATEL_VENDOR_ID 0x1bbb #define ALCATEL_PRODUCT_X060S_X200 0x0000 +#define ALCATEL_PRODUCT_X220_X500D 0x0017 #define PIRELLI_VENDOR_ID 0x1266 #define PIRELLI_PRODUCT_C100_1 0x1002 @@ -1164,6 +1165,7 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S_X200), .driver_info = (kernel_ulong_t)&alcatel_x200_blacklist }, + { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X220_X500D) }, { USB_DEVICE(AIRPLUS_VENDOR_ID, AIRPLUS_PRODUCT_MCD650) }, { USB_DEVICE(TLAYTECH_VENDOR_ID, TLAYTECH_PRODUCT_TEU800) }, { USB_DEVICE(LONGCHEER_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14), -- cgit v0.10.2 From e592c5d0b7db94b485b4a2342db041a1882b7f75 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 13 Nov 2012 10:52:52 -0800 Subject: Revert "USB/host: Cleanup unneccessary irq disable code" This reverts commit 73d4066055e0e2830533041f4b91df8e6e5976ff. Martin Steigerwald reported that this change caused a hard lockup when using USB if threadirqs are enabled. Thomas pointed out that this patch is incorrect, and can cause problems. So revert it to get the previously working functionality back. Reported-by: Martin Steigerwald Cc: Thomas Gleixner Cc: Chuansheng Liu Cc: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 1e741bc..f034716 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -2151,8 +2151,15 @@ EXPORT_SYMBOL_GPL(usb_bus_start_enum); irqreturn_t usb_hcd_irq (int irq, void *__hcd) { struct usb_hcd *hcd = __hcd; + unsigned long flags; irqreturn_t rc; + /* IRQF_DISABLED doesn't work correctly with shared IRQs + * when the first handler doesn't use it. So let's just + * assume it's never used. + */ + local_irq_save(flags); + if (unlikely(HCD_DEAD(hcd) || !HCD_HW_ACCESSIBLE(hcd))) rc = IRQ_NONE; else if (hcd->driver->irq(hcd) == IRQ_NONE) @@ -2160,6 +2167,7 @@ irqreturn_t usb_hcd_irq (int irq, void *__hcd) else rc = IRQ_HANDLED; + local_irq_restore(flags); return rc; } EXPORT_SYMBOL_GPL(usb_hcd_irq); @@ -2347,6 +2355,14 @@ static int usb_hcd_request_irqs(struct usb_hcd *hcd, int retval; if (hcd->driver->irq) { + + /* IRQF_DISABLED doesn't work as advertised when used together + * with IRQF_SHARED. As usb_hcd_irq() will always disable + * interrupts we can remove it here. + */ + if (irqflags & IRQF_SHARED) + irqflags &= ~IRQF_DISABLED; + snprintf(hcd->irq_descr, sizeof(hcd->irq_descr), "%s:usb%d", hcd->driver->description, hcd->self.busnum); retval = request_irq(irqnum, &usb_hcd_irq, irqflags, diff --git a/drivers/usb/host/ehci-ls1x.c b/drivers/usb/host/ehci-ls1x.c index ca75965..aa0f328 100644 --- a/drivers/usb/host/ehci-ls1x.c +++ b/drivers/usb/host/ehci-ls1x.c @@ -113,7 +113,7 @@ static int ehci_hcd_ls1x_probe(struct platform_device *pdev) goto err_put_hcd; } - ret = usb_add_hcd(hcd, irq, IRQF_SHARED); + ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED); if (ret) goto err_put_hcd; diff --git a/drivers/usb/host/ohci-xls.c b/drivers/usb/host/ohci-xls.c index 84201cd..41e378f 100644 --- a/drivers/usb/host/ohci-xls.c +++ b/drivers/usb/host/ohci-xls.c @@ -56,7 +56,7 @@ static int ohci_xls_probe_internal(const struct hc_driver *driver, goto err3; } - retval = usb_add_hcd(hcd, irq, IRQF_SHARED); + retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED); if (retval != 0) goto err4; return retval; -- cgit v0.10.2 From 80928805babfd97b6f1721dd942a55dd2e7813ea Mon Sep 17 00:00:00 2001 From: Steve Glendinning Date: Tue, 6 Nov 2012 00:08:53 +0000 Subject: smsc95xx: set MII_BUSY bit to read/write PHY regs The device datasheet specifies the BUSY bit must be set when reading or writing phy registers. This patch ensures we do that. Signed-off-by: Steve Glendinning Signed-off-by: David S. Miller diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index 3286166..362cb8c 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -184,7 +184,7 @@ static int smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx) /* set the address, index & direction (read from PHY) */ phy_id &= dev->mii.phy_id_mask; idx &= dev->mii.reg_num_mask; - addr = (phy_id << 11) | (idx << 6) | MII_READ_; + addr = (phy_id << 11) | (idx << 6) | MII_READ_ | MII_BUSY_; ret = smsc95xx_write_reg(dev, MII_ADDR, addr); check_warn_goto_done(ret, "Error writing MII_ADDR"); @@ -221,7 +221,7 @@ static void smsc95xx_mdio_write(struct net_device *netdev, int phy_id, int idx, /* set the address, index & direction (write to PHY) */ phy_id &= dev->mii.phy_id_mask; idx &= dev->mii.reg_num_mask; - addr = (phy_id << 11) | (idx << 6) | MII_WRITE_; + addr = (phy_id << 11) | (idx << 6) | MII_WRITE_ | MII_BUSY_; ret = smsc95xx_write_reg(dev, MII_ADDR, addr); check_warn_goto_done(ret, "Error writing MII_ADDR"); -- cgit v0.10.2 From a134884ac0e9fa48786560d49ed49c5f5f686410 Mon Sep 17 00:00:00 2001 From: Stefan Raspl Date: Mon, 12 Nov 2012 23:05:16 +0000 Subject: qeth: Fix IPA_CMD_QIPASSIST return code handling Return codes of IPA_CMD_QIPASSIST are not checked, especially the ones which indicate that the command is not supported. As a result, the device driver would not enable all available features on older card generations. This patch adds proper checking and sets the bare minimum in the supported functions flags to avoid follow-on errors. Signed-off-by: Stefan Raspl Signed-off-by: Frank Blaschka Reviewed-by: Ursula Braun Signed-off-by: David S. Miller diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 3e25d31..4d6ba00 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -2942,13 +2942,33 @@ static int qeth_query_ipassists_cb(struct qeth_card *card, QETH_DBF_TEXT(SETUP, 2, "qipasscb"); cmd = (struct qeth_ipa_cmd *) data; + + switch (cmd->hdr.return_code) { + case IPA_RC_NOTSUPP: + case IPA_RC_L2_UNSUPPORTED_CMD: + QETH_DBF_TEXT(SETUP, 2, "ipaunsup"); + card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS; + card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS; + return -0; + default: + if (cmd->hdr.return_code) { + QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled " + "rc=%d\n", + dev_name(&card->gdev->dev), + cmd->hdr.return_code); + return 0; + } + } + if (cmd->hdr.prot_version == QETH_PROT_IPV4) { card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; - } else { + } else if (cmd->hdr.prot_version == QETH_PROT_IPV6) { card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported; card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; - } + } else + QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected" + "\n", dev_name(&card->gdev->dev)); QETH_DBF_TEXT(SETUP, 2, "suppenbl"); QETH_DBF_TEXT_(SETUP, 2, "%08x", (__u32)cmd->hdr.ipa_supported); QETH_DBF_TEXT_(SETUP, 2, "%08x", (__u32)cmd->hdr.ipa_enabled); diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index e67e025..84e8f1d 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -626,10 +626,13 @@ static int qeth_l2_request_initial_mac(struct qeth_card *card) QETH_DBF_TEXT(SETUP, 2, "doL2init"); QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); - rc = qeth_query_setadapterparms(card); - if (rc) { - QETH_DBF_MESSAGE(2, "could not query adapter parameters on " - "device %s: x%x\n", CARD_BUS_ID(card), rc); + if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) { + rc = qeth_query_setadapterparms(card); + if (rc) { + QETH_DBF_MESSAGE(2, "could not query adapter " + "parameters on device %s: x%x\n", + CARD_BUS_ID(card), rc); + } } if (card->info.type == QETH_CARD_TYPE_IQD || -- cgit v0.10.2 From 7702745b15128e5f0659693736a864e35be1c807 Mon Sep 17 00:00:00 2001 From: Ursula Braun Date: Mon, 12 Nov 2012 23:05:17 +0000 Subject: qeth: set new mac even if old mac is gone If the set_mac_address() function of qeth is invoked, qeth deletes the old mac address first on OSA. Only if deletion returns successfully the new mac address is set on OSA. Deletion may return with a return value "MAC not found on OSA". In this case qeth should continue setting the new mac address. When the OSA cable is pulled, OSA forgets any set mac address. If the OSA network interface acts as a slave to a bonding master interface, bonding can invoke the set_mac_address function for failover purposes and depends on successful setting of the new mac address even though the old mac address could no longer be deleted. Signed-off-by: Ursula Braun Signed-off-by: Frank Blaschka Signed-off-by: David S. Miller diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 84e8f1d..fddb626 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -679,7 +679,7 @@ static int qeth_l2_set_mac_address(struct net_device *dev, void *p) return -ERESTARTSYS; } rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); - if (!rc) + if (!rc || (rc == IPA_RC_L2_MAC_NOT_FOUND)) rc = qeth_l2_send_setmac(card, addr->sa_data); return rc ? -EINVAL : 0; } -- cgit v0.10.2 From bbc8d9228ea8e37ce29fa96150d10b85a2c7be60 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Tue, 13 Nov 2012 03:19:43 +0000 Subject: net: cdc_ncm: add Huawei devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A number of Huawei 3G and LTE modems implement a CDC NCM function, including the necessary functional descriptors, but using a non standard interface layout and class/subclass/protocol codes. These devices can be handled by this driver with only a minor change to the probing logic, allowing a single combined control and data interface. This works because the devices - include a CDC Union descriptor labelling the combined interface as both master and slave, and - have an alternate setting #1 for the bulk endpoints on the combined interface. The 3G/LTE network connection is managed by vendor specific AT commands on a serial function in the same composite device. Handling the managment function is out of the scope of this driver. It will be handled by an appropriate USB serial driver. Reported-and-Tested-by: Olof Ermis Reported-and-Tested-by: Tommy Cheng Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 4cd582a..74fab1a 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -540,10 +540,12 @@ advance: (ctx->ether_desc == NULL) || (ctx->control != intf)) goto error; - /* claim interfaces, if any */ - temp = usb_driver_claim_interface(driver, ctx->data, dev); - if (temp) - goto error; + /* claim data interface, if different from control */ + if (ctx->data != ctx->control) { + temp = usb_driver_claim_interface(driver, ctx->data, dev); + if (temp) + goto error; + } iface_no = ctx->data->cur_altsetting->desc.bInterfaceNumber; @@ -623,6 +625,10 @@ static void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf) tasklet_kill(&ctx->bh); + /* handle devices with combined control and data interface */ + if (ctx->control == ctx->data) + ctx->data = NULL; + /* disconnect master --> disconnect slave */ if (intf == ctx->control && ctx->data) { usb_set_intfdata(ctx->data, NULL); @@ -1245,6 +1251,14 @@ static const struct usb_device_id cdc_devs[] = { .driver_info = (unsigned long) &wwan_info, }, + /* Huawei NCM devices disguised as vendor specific */ + { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x16), + .driver_info = (unsigned long)&wwan_info, + }, + { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x46), + .driver_info = (unsigned long)&wwan_info, + }, + /* Generic CDC-NCM devices */ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE), -- cgit v0.10.2 From bd090dfc634ddd711a5fbd0cadc6e0ab4977bcaf Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 13 Nov 2012 05:37:18 +0000 Subject: tcp: tcp_replace_ts_recent() should not be called from tcp_validate_incoming() We added support for RFC 5961 in latest kernels but TCP fails to perform exhaustive check of ACK sequence. We can update our view of peer tsval from a frame that is later discarded by tcp_ack() This makes timestamps enabled sessions vulnerable to injection of a high tsval : peers start an ACK storm, since the victim sends a dupack each time it receives an ACK from the other peer. As tcp_validate_incoming() is called before tcp_ack(), we should not peform tcp_replace_ts_recent() from it, and let callers do it at the right time. Signed-off-by: Eric Dumazet Cc: Neal Cardwell Cc: Yuchung Cheng Cc: Nandita Dukkipati Cc: H.K. Jerry Chu Cc: Romain Francoise Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 2c2b13a..609ff98 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -5313,11 +5313,6 @@ static bool tcp_validate_incoming(struct sock *sk, struct sk_buff *skb, goto discard; } - /* ts_recent update must be made after we are sure that the packet - * is in window. - */ - tcp_replace_ts_recent(tp, TCP_SKB_CB(skb)->seq); - /* step 3: check security and precedence [ignored] */ /* step 4: Check for a SYN @@ -5552,6 +5547,11 @@ step5: if (th->ack && tcp_ack(sk, skb, FLAG_SLOWPATH) < 0) goto discard; + /* ts_recent update must be made after we are sure that the packet + * is in window. + */ + tcp_replace_ts_recent(tp, TCP_SKB_CB(skb)->seq); + tcp_rcv_rtt_measure_ts(sk, skb); /* Process urgent data. */ @@ -6130,6 +6130,11 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb, } else goto discard; + /* ts_recent update must be made after we are sure that the packet + * is in window. + */ + tcp_replace_ts_recent(tp, TCP_SKB_CB(skb)->seq); + /* step 6: check the URG bit */ tcp_urg(sk, skb, th); -- cgit v0.10.2 From 52b702ffa509595c5d04a1a1d0f63acf92b4789b Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Fri, 9 Nov 2012 13:35:24 +0000 Subject: vxlan: Fix error that was resulting in VXLAN MTU size being 10 bytes too large This change fixes an issue I found where VXLAN frames were fragmented when they were up to the VXLAN MTU size. I root caused the issue to the fact that the headroom was 4 + 20 + 8 + 8. This math doesn't appear to be correct because we are not inserting a VLAN header, but instead a 2nd Ethernet header. As such the math for the overhead should be 20 + 8 + 8 + 14 to account for the extra headers that are inserted for VXLAN. Signed-off-by: Alexander Duyck Signed-off-by: David S. Miller diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 7b4adde..0c4d0f4 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -50,8 +50,8 @@ #define VXLAN_N_VID (1u << 24) #define VXLAN_VID_MASK (VXLAN_N_VID - 1) -/* VLAN + IP header + UDP + VXLAN */ -#define VXLAN_HEADROOM (4 + 20 + 8 + 8) +/* IP header + UDP + VXLAN + Ethernet header */ +#define VXLAN_HEADROOM (20 + 8 + 8 + 14) #define VXLAN_FLAGS 0x08000000 /* struct vxlanhdr.vx_flags required value. */ -- cgit v0.10.2 From 73e212fc48890b552e4ae65b65c0e709f478879b Mon Sep 17 00:00:00 2001 From: Kirill Smelkov Date: Sat, 10 Nov 2012 07:12:36 +0000 Subject: doc/net: Fix typo in netdev-features.txt Signed-off-by: Kirill Smelkov Signed-off-by: David S. Miller diff --git a/Documentation/networking/netdev-features.txt b/Documentation/networking/netdev-features.txt index 4164f5c..f310ede 100644 --- a/Documentation/networking/netdev-features.txt +++ b/Documentation/networking/netdev-features.txt @@ -164,4 +164,4 @@ read the CRC recorded by the NIC on receipt of the packet. This requests that the NIC receive all possible frames, including errored frames (such as bad FCS, etc). This can be helpful when sniffing a link with bad packets on it. Some NICs may receive more packets if also put into normal -PROMISC mdoe. +PROMISC mode. -- cgit v0.10.2 From d4596bad2a713fcd0def492b1960e6d899d5baa8 Mon Sep 17 00:00:00 2001 From: Hannes Frederic Sowa Date: Sat, 10 Nov 2012 19:52:34 +0000 Subject: ipv6: setsockopt(IPIPPROTO_IPV6, IPV6_MINHOPCOUNT) forgot to set return value Cc: Stephen Hemminger Signed-off-by: Hannes Frederic Sowa Signed-off-by: David S. Miller diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index ba6d13d..e02faed 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -827,6 +827,7 @@ pref_skip_coa: if (val < 0 || val > 255) goto e_inval; np->min_hopcount = val; + retv = 0; break; case IPV6_DONTFRAG: np->dontfrag = valbool; -- cgit v0.10.2 From b78a4932f5fb11fadf41e69c606a33fa6787574c Mon Sep 17 00:00:00 2001 From: Simon Wunderlich Date: Tue, 13 Nov 2012 18:43:03 +0100 Subject: mac80211: deinitialize ibss-internals after emptiness check The check whether the IBSS is active and can be removed should be performed before deinitializing the fields used for the check/search. Otherwise, the configured BSS will not be found and removed properly. To make it more clear for the future, rename sdata->u.ibss to the local pointer ifibss which is used within the checks. This behaviour was introduced by f3209bea110cade12e2b133da8b8499689cb0e2e ("mac80211: fix IBSS teardown race") Cc: stable@vger.kernel.org Cc: Ignacy Gawedzki Signed-off-by: Simon Wunderlich Signed-off-by: Johannes Berg diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index bf87c70..c21e33d 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -1151,10 +1151,6 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata) mutex_lock(&sdata->u.ibss.mtx); - sdata->u.ibss.state = IEEE80211_IBSS_MLME_SEARCH; - memset(sdata->u.ibss.bssid, 0, ETH_ALEN); - sdata->u.ibss.ssid_len = 0; - active_ibss = ieee80211_sta_active_ibss(sdata); if (!active_ibss && !is_zero_ether_addr(ifibss->bssid)) { @@ -1175,6 +1171,10 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata) } } + ifibss->state = IEEE80211_IBSS_MLME_SEARCH; + memset(ifibss->bssid, 0, ETH_ALEN); + ifibss->ssid_len = 0; + sta_info_flush(sdata->local, sdata); spin_lock_bh(&ifibss->incomplete_lock); -- cgit v0.10.2 From d38e0e3fed4f58bcddef4dc93a591dfe2f651cb0 Mon Sep 17 00:00:00 2001 From: Colin Cross Date: Wed, 7 Nov 2012 18:21:51 -0800 Subject: Revert "Staging: Android alarm: IOCTL command encoding fix" Commit 6bd4a5d96c08dc2380f8053b1bd4f879f55cd3c9 changed the ANDROID_ALARM_GET_TIME ioctls from IOW to IOR. While technically correct, the _IOC_DIR bits are ignored by alarm_ioctl, so the commit breaks a userspace ABI used by all existing Android devices for a purely cosmetic reason. Revert it. Cc: stable Cc: Dae S. Kim Signed-off-by: Colin Cross Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/android_alarm.h b/drivers/staging/android/android_alarm.h index f2ffd96..d0cafd6 100644 --- a/drivers/staging/android/android_alarm.h +++ b/drivers/staging/android/android_alarm.h @@ -51,12 +51,10 @@ enum android_alarm_return_flags { #define ANDROID_ALARM_WAIT _IO('a', 1) #define ALARM_IOW(c, type, size) _IOW('a', (c) | ((type) << 4), size) -#define ALARM_IOR(c, type, size) _IOR('a', (c) | ((type) << 4), size) - /* Set alarm */ #define ANDROID_ALARM_SET(type) ALARM_IOW(2, type, struct timespec) #define ANDROID_ALARM_SET_AND_WAIT(type) ALARM_IOW(3, type, struct timespec) -#define ANDROID_ALARM_GET_TIME(type) ALARM_IOR(4, type, struct timespec) +#define ANDROID_ALARM_GET_TIME(type) ALARM_IOW(4, type, struct timespec) #define ANDROID_ALARM_SET_RTC _IOW('a', 5, struct timespec) #define ANDROID_ALARM_BASE_CMD(cmd) (cmd & ~(_IOC(0, 0, 0xf0, 0))) #define ANDROID_ALARM_IOCTL_TO_TYPE(cmd) (_IOC_NR(cmd) >> 4) -- cgit v0.10.2 From d85c8a6ab2bb0ba067a2a72c63c3bd20e6788996 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Tue, 13 Nov 2012 22:27:19 +0100 Subject: MAINTAINERS: i2c: 7 years, this is it I have been maintaining the i2c subsystem for 7 years now, it's about time to let someone else take over. Just before I leave, I would like to thank several individuals who made this possible at all: * Greg Kroah-Hartman, for his faith in my potential subsystem maintainer skills. Greg, I hope I met your expectations. * Late David Brownell, for helping me convert the i2c subsystem to the standard device driver model. Rest in peace David, we're missing you. * Ben Dooks, for stepping in when I asked for someone to take care of the huge flow of new i2c adapter drivers for embedded systems. * Wolfram Sang, for joining the crew when it became clear that there was more review work than Ben and myself could deal with. I hope I did not forget anyone, please forgive me if I did. Another big thank is due to Wolfram again, who quickly proposed to take over as the main i2c subsystem maintainer. This will allow for a smooth and fast transition. Note that I will keep maintaining all I2C/SMBus controller drivers for PC systems as well as a few others. I am hereby updating MAINTAINERS accordingly. I'll also keep maintaining user-space i2c-tools. Signed-off-by: Jean Delvare Cc: Greg Kroah-Hartman Cc: Ben Dooks Acked-by: Wolfram Sang diff --git a/MAINTAINERS b/MAINTAINERS index 59203e7..ff8e763 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3598,6 +3598,49 @@ F: drivers/hid/hid-hyperv.c F: drivers/net/hyperv/ F: drivers/staging/hv/ +I2C OVER PARALLEL PORT +M: Jean Delvare +L: linux-i2c@vger.kernel.org +S: Maintained +F: Documentation/i2c/busses/i2c-parport +F: Documentation/i2c/busses/i2c-parport-light +F: drivers/i2c/busses/i2c-parport.c +F: drivers/i2c/busses/i2c-parport-light.c + +I2C/SMBUS CONTROLLER DRIVERS FOR PC +M: Jean Delvare +L: linux-i2c@vger.kernel.org +S: Maintained +F: Documentation/i2c/busses/i2c-ali1535 +F: Documentation/i2c/busses/i2c-ali1563 +F: Documentation/i2c/busses/i2c-ali15x3 +F: Documentation/i2c/busses/i2c-amd756 +F: Documentation/i2c/busses/i2c-amd8111 +F: Documentation/i2c/busses/i2c-i801 +F: Documentation/i2c/busses/i2c-nforce2 +F: Documentation/i2c/busses/i2c-piix4 +F: Documentation/i2c/busses/i2c-sis5595 +F: Documentation/i2c/busses/i2c-sis630 +F: Documentation/i2c/busses/i2c-sis96x +F: Documentation/i2c/busses/i2c-via +F: Documentation/i2c/busses/i2c-viapro +F: drivers/i2c/busses/i2c-ali1535.c +F: drivers/i2c/busses/i2c-ali1563.c +F: drivers/i2c/busses/i2c-ali15x3.c +F: drivers/i2c/busses/i2c-amd756.c +F: drivers/i2c/busses/i2c-amd756-s4882.c +F: drivers/i2c/busses/i2c-amd8111.c +F: drivers/i2c/busses/i2c-i801.c +F: drivers/i2c/busses/i2c-isch.c +F: drivers/i2c/busses/i2c-nforce2.c +F: drivers/i2c/busses/i2c-nforce2-s4985.c +F: drivers/i2c/busses/i2c-piix4.c +F: drivers/i2c/busses/i2c-sis5595.c +F: drivers/i2c/busses/i2c-sis630.c +F: drivers/i2c/busses/i2c-sis96x.c +F: drivers/i2c/busses/i2c-via.c +F: drivers/i2c/busses/i2c-viapro.c + I2C/SMBUS STUB DRIVER M: "Mark M. Hoffman" L: linux-i2c@vger.kernel.org @@ -3605,9 +3648,8 @@ S: Maintained F: drivers/i2c/busses/i2c-stub.c I2C SUBSYSTEM -M: "Jean Delvare (PC drivers, core)" +M: Wolfram Sang M: "Ben Dooks (embedded platforms)" -M: "Wolfram Sang (embedded platforms)" L: linux-i2c@vger.kernel.org W: http://i2c.wiki.kernel.org/ T: quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-i2c/ @@ -3618,6 +3660,13 @@ F: drivers/i2c/ F: include/linux/i2c.h F: include/linux/i2c-*.h +I2C-TAOS-EVM DRIVER +M: Jean Delvare +L: linux-i2c@vger.kernel.org +S: Maintained +F: Documentation/i2c/busses/i2c-taos-evm +F: drivers/i2c/busses/i2c-taos-evm.c + I2C-TINY-USB DRIVER M: Till Harbaum L: linux-i2c@vger.kernel.org @@ -7887,13 +7936,6 @@ M: Roger Luethi S: Maintained F: drivers/net/ethernet/via/via-rhine.c -VIAPRO SMBUS DRIVER -M: Jean Delvare -L: linux-i2c@vger.kernel.org -S: Maintained -F: Documentation/i2c/busses/i2c-viapro -F: drivers/i2c/busses/i2c-viapro.c - VIA SD/MMC CARD CONTROLLER DRIVER M: Bruce Chang M: Harald Welte -- cgit v0.10.2 From aa1e3e81e75ceb3d977c3292cefafcd5179eb8b8 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 13 Nov 2012 22:27:19 +0100 Subject: i2c-mux-pinctrl: Fix probe error path When allocating the memory for i2c busses, the code checked the wrong variable and thus never detected if there was a memory error. Signed-off-by: Guenter Roeck Cc: stable@vger.kernel.org Signed-off-by: Jean Delvare diff --git a/drivers/i2c/muxes/i2c-mux-pinctrl.c b/drivers/i2c/muxes/i2c-mux-pinctrl.c index 5f097f3..7fa5b24 100644 --- a/drivers/i2c/muxes/i2c-mux-pinctrl.c +++ b/drivers/i2c/muxes/i2c-mux-pinctrl.c @@ -169,7 +169,7 @@ static int __devinit i2c_mux_pinctrl_probe(struct platform_device *pdev) mux->busses = devm_kzalloc(&pdev->dev, sizeof(mux->busses) * mux->pdata->bus_count, GFP_KERNEL); - if (!mux->states) { + if (!mux->busses) { dev_err(&pdev->dev, "Cannot allocate busses\n"); ret = -ENOMEM; goto err; -- cgit v0.10.2 From eb5ce43997b10dd07a63befeb26778d996c5a356 Mon Sep 17 00:00:00 2001 From: Rami Rosen Date: Tue, 13 Nov 2012 13:29:15 +0000 Subject: vxlan: fix a typo. Use eXtensible and not eXtensiable in the comment on top. Signed-off-by: Rami Rosen Acked-by: Stephen Hemminger Signed-off-by: David S. Miller diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 0c4d0f4..3d0bf66 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -1,5 +1,5 @@ /* - * VXLAN: Virtual eXtensiable Local Area Network + * VXLAN: Virtual eXtensible Local Area Network * * Copyright (c) 2012 Vyatta Inc. * -- cgit v0.10.2 From 1ba56fb45a927d083f655302e75a1911a75b5da6 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Tue, 13 Nov 2012 13:10:59 +0000 Subject: vxlan: Update hard_header_len based on lowerdev when instantiating VXLAN In the event of a VXLAN device being linked to a device that has a hard_header_len greater than that of standard ethernet we could end up with the hard_header_len not being large enough for outgoing frames. In order to prevent this we should update the length when a lowerdev is provided. Signed-off-by: Alexander Duyck Acked-by: Stephen Hemminger Signed-off-by: David S. Miller diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 3d0bf66..8b5c619 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -1102,6 +1102,10 @@ static int vxlan_newlink(struct net *net, struct net_device *dev, if (!tb[IFLA_MTU]) dev->mtu = lowerdev->mtu - VXLAN_HEADROOM; + + /* update header length based on lower device */ + dev->hard_header_len = lowerdev->hard_header_len + + VXLAN_HEADROOM; } if (data[IFLA_VXLAN_TOS]) -- cgit v0.10.2 From 3c6bdaeab4fda6c9fdd5f3f5c610dea97bddf7d6 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Tue, 18 Sep 2012 12:19:30 -0400 Subject: [SCSI] Add a report opcode helper The REPORT SUPPORTED OPERATION CODES command can be used to query whether a given opcode is supported by a device. Add a helper function that allows us to look up commands. We only issue RSOC if the device reports compliance with SPC-3 or later. But to err on the side of caution we disable the command for ATA, FireWire and USB. Signed-off-by: Martin K. Petersen Acked-by: Mike Snitzer Signed-off-by: James Bottomley diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index e3bda07..7c2dead 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1052,6 +1052,7 @@ static void ata_scsi_sdev_config(struct scsi_device *sdev) { sdev->use_10_for_rw = 1; sdev->use_10_for_ms = 1; + sdev->no_report_opcodes = 1; /* Schedule policy is determined by ->qc_defer() callback and * it needs to see every deferred qc. Set dev_blocked to 1 to diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c index 1162d6b..f82e9d4 100644 --- a/drivers/firewire/sbp2.c +++ b/drivers/firewire/sbp2.c @@ -1546,6 +1546,7 @@ static int sbp2_scsi_slave_configure(struct scsi_device *sdev) struct sbp2_logical_unit *lu = sdev->hostdata; sdev->use_10_for_rw = 1; + sdev->no_report_opcodes = 1; if (sbp2_param_exclusive_login) sdev->manage_start_stop = 1; diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 2936b44..2c0d0ec 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -55,6 +55,7 @@ #include #include #include +#include #include #include @@ -1062,6 +1063,50 @@ int scsi_get_vpd_page(struct scsi_device *sdev, u8 page, unsigned char *buf, EXPORT_SYMBOL_GPL(scsi_get_vpd_page); /** + * scsi_report_opcode - Find out if a given command opcode is supported + * @sdev: scsi device to query + * @buffer: scratch buffer (must be at least 20 bytes long) + * @len: length of buffer + * @opcode: opcode for command to look up + * + * Uses the REPORT SUPPORTED OPERATION CODES to look up the given + * opcode. Returns 0 if RSOC fails or if the command opcode is + * unsupported. Returns 1 if the device claims to support the command. + */ +int scsi_report_opcode(struct scsi_device *sdev, unsigned char *buffer, + unsigned int len, unsigned char opcode) +{ + unsigned char cmd[16]; + struct scsi_sense_hdr sshdr; + int result; + + if (sdev->no_report_opcodes || sdev->scsi_level < SCSI_SPC_3) + return 0; + + memset(cmd, 0, 16); + cmd[0] = MAINTENANCE_IN; + cmd[1] = MI_REPORT_SUPPORTED_OPERATION_CODES; + cmd[2] = 1; /* One command format */ + cmd[3] = opcode; + put_unaligned_be32(len, &cmd[6]); + memset(buffer, 0, len); + + result = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buffer, len, + &sshdr, 30 * HZ, 3, NULL); + + if (result && scsi_sense_valid(&sshdr) && + sshdr.sense_key == ILLEGAL_REQUEST && + (sshdr.asc == 0x20 || sshdr.asc == 0x24) && sshdr.ascq == 0x00) + return 0; + + if ((buffer[1] & 3) == 3) /* Command supported */ + return 1; + + return 0; +} +EXPORT_SYMBOL(scsi_report_opcode); + +/** * scsi_device_get - get an additional reference to a scsi_device * @sdev: device to get a reference to * diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index a3d5436..6ab376a 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -186,6 +186,9 @@ static int slave_configure(struct scsi_device *sdev) /* Some devices don't handle VPD pages correctly */ sdev->skip_vpd_pages = 1; + /* Do not attempt to use REPORT SUPPORTED OPERATION CODES */ + sdev->no_report_opcodes = 1; + /* Some disks return the total number of blocks in response * to READ CAPACITY rather than the highest block number. * If this device makes that mistake, tell the sd driver. */ diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 88fae8d..379d465 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -135,6 +135,7 @@ struct scsi_device { * because we did a bus reset. */ unsigned use_10_for_rw:1; /* first try 10-byte read / write */ unsigned use_10_for_ms:1; /* first try 10-byte mode sense/select */ + unsigned no_report_opcodes:1; /* no REPORT SUPPORTED OPERATION CODES */ unsigned skip_ms_page_8:1; /* do not use MODE SENSE page 0x08 */ unsigned skip_ms_page_3f:1; /* do not use MODE SENSE page 0x3f */ unsigned skip_vpd_pages:1; /* do not read VPD pages */ @@ -362,6 +363,8 @@ extern int scsi_test_unit_ready(struct scsi_device *sdev, int timeout, int retries, struct scsi_sense_hdr *sshdr); extern int scsi_get_vpd_page(struct scsi_device *, u8 page, unsigned char *buf, int buf_len); +extern int scsi_report_opcode(struct scsi_device *sdev, unsigned char *buffer, + unsigned int len, unsigned char opcode); extern int scsi_device_set_state(struct scsi_device *sdev, enum scsi_device_state state); extern struct scsi_event *sdev_evt_alloc(enum scsi_device_event evt_type, -- cgit v0.10.2 From 26e85fcd15f68b57d9ba645cd3591117a8ac0e05 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Tue, 18 Sep 2012 12:19:31 -0400 Subject: [SCSI] sd: Permit merged discard requests Support requests with more than one bio payload for discards. The total number of bytes to be discarded is stored in req->__data_len and used in sd_done() to complete the I/O. Signed-off-by: Martin K. Petersen Reviewed-by: Mike Snitzer Signed-off-by: James Bottomley diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 12f6fdf..c6af4c1 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -583,29 +583,26 @@ static void sd_config_discard(struct scsi_disk *sdkp, unsigned int mode) } /** - * scsi_setup_discard_cmnd - unmap blocks on thinly provisioned device + * sd_setup_discard_cmnd - unmap blocks on thinly provisioned device * @sdp: scsi device to operate one * @rq: Request to prepare * * Will issue either UNMAP or WRITE SAME(16) depending on preference * indicated by target device. **/ -static int scsi_setup_discard_cmnd(struct scsi_device *sdp, struct request *rq) +static int sd_setup_discard_cmnd(struct scsi_device *sdp, struct request *rq) { struct scsi_disk *sdkp = scsi_disk(rq->rq_disk); - struct bio *bio = rq->bio; - sector_t sector = bio->bi_sector; - unsigned int nr_sectors = bio_sectors(bio); + sector_t sector = blk_rq_pos(rq); + unsigned int nr_sectors = blk_rq_sectors(rq); + unsigned int nr_bytes = blk_rq_bytes(rq); unsigned int len; int ret; char *buf; struct page *page; - if (sdkp->device->sector_size == 4096) { - sector >>= 3; - nr_sectors >>= 3; - } - + sector >>= ilog2(sdp->sector_size) - 9; + nr_sectors >>= ilog2(sdp->sector_size) - 9; rq->timeout = SD_TIMEOUT; memset(rq->cmd, 0, rq->cmd_len); @@ -660,6 +657,7 @@ static int scsi_setup_discard_cmnd(struct scsi_device *sdp, struct request *rq) blk_add_request_payload(rq, page, len); ret = scsi_setup_blk_pc_cmnd(sdp, rq); rq->buffer = page_address(page); + rq->__data_len = nr_bytes; out: if (ret != BLKPREP_OK) { @@ -712,7 +710,7 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) * block PC requests to make life easier. */ if (rq->cmd_flags & REQ_DISCARD) { - ret = scsi_setup_discard_cmnd(sdp, rq); + ret = sd_setup_discard_cmnd(sdp, rq); goto out; } else if (rq->cmd_flags & REQ_FLUSH) { ret = scsi_setup_flush_cmnd(sdp, rq); @@ -1482,12 +1480,20 @@ static int sd_done(struct scsi_cmnd *SCpnt) unsigned int good_bytes = result ? 0 : scsi_bufflen(SCpnt); struct scsi_sense_hdr sshdr; struct scsi_disk *sdkp = scsi_disk(SCpnt->request->rq_disk); + struct request *req = SCpnt->request; int sense_valid = 0; int sense_deferred = 0; unsigned char op = SCpnt->cmnd[0]; - if ((SCpnt->request->cmd_flags & REQ_DISCARD) && !result) - scsi_set_resid(SCpnt, 0); + if (req->cmd_flags & REQ_DISCARD) { + if (!result) { + good_bytes = blk_rq_bytes(req); + scsi_set_resid(SCpnt, 0); + } else { + good_bytes = 0; + scsi_set_resid(SCpnt, blk_rq_bytes(req)); + } + } if (result) { sense_valid = scsi_command_normalize_sense(SCpnt, &sshdr); -- cgit v0.10.2 From 5db44863b6ebbb400c5e61d56ebe8f21ef48b1bd Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Tue, 18 Sep 2012 12:19:32 -0400 Subject: [SCSI] sd: Implement support for WRITE SAME Implement support for WRITE SAME(10) and WRITE SAME(16) in the SCSI disk driver. - We set the default maximum to 0xFFFF because there are several devices out there that only support two-byte block counts even with WRITE SAME(16). We only enable transfers bigger than 0xFFFF if the device explicitly reports MAXIMUM WRITE SAME LENGTH in the BLOCK LIMITS VPD. - max_write_same_blocks can be overriden per-device basis in sysfs. - The UNMAP discovery heuristics remain unchanged but the discard limits are tweaked to match the "real" WRITE SAME commands. - In the error handling logic we now distinguish between WRITE SAME with and without UNMAP set. The discovery process heuristics are: - If the device reports a SCSI level of SPC-3 or greater we'll issue READ SUPPORTED OPERATION CODES to find out whether WRITE SAME(16) is supported. If that's the case we will use it. - If the device supports the block limits VPD and reports a MAXIMUM WRITE SAME LENGTH bigger than 0xFFFF we will use WRITE SAME(16). - Otherwise we will use WRITE SAME(10) unless the target LBA is beyond 0xFFFFFFFF or the block count exceeds 0xFFFF. - no_write_same is set for ATA, FireWire and USB. Signed-off-by: Martin K. Petersen Reviewed-by: Mike Snitzer Reviewed-by: Jeff Garzik Signed-off-by: James Bottomley diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 7c2dead..a6df6a3 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1053,6 +1053,7 @@ static void ata_scsi_sdev_config(struct scsi_device *sdev) sdev->use_10_for_rw = 1; sdev->use_10_for_ms = 1; sdev->no_report_opcodes = 1; + sdev->no_write_same = 1; /* Schedule policy is determined by ->qc_defer() callback and * it needs to see every deferred qc. Set dev_blocked to 1 to diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c index f82e9d4..bb1b392 100644 --- a/drivers/firewire/sbp2.c +++ b/drivers/firewire/sbp2.c @@ -1547,6 +1547,7 @@ static int sbp2_scsi_slave_configure(struct scsi_device *sdev) sdev->use_10_for_rw = 1; sdev->no_report_opcodes = 1; + sdev->no_write_same = 1; if (sbp2_param_exclusive_login) sdev->manage_start_stop = 1; diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index da36a3a..9032e91 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -900,11 +900,23 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) action = ACTION_FAIL; error = -EILSEQ; /* INVALID COMMAND OPCODE or INVALID FIELD IN CDB */ - } else if ((sshdr.asc == 0x20 || sshdr.asc == 0x24) && - (cmd->cmnd[0] == UNMAP || - cmd->cmnd[0] == WRITE_SAME_16 || - cmd->cmnd[0] == WRITE_SAME)) { - description = "Discard failure"; + } else if (sshdr.asc == 0x20 || sshdr.asc == 0x24) { + switch (cmd->cmnd[0]) { + case UNMAP: + description = "Discard failure"; + break; + case WRITE_SAME: + case WRITE_SAME_16: + if (cmd->cmnd[1] & 0x8) + description = "Discard failure"; + else + description = + "Write same failure"; + break; + default: + description = "Invalid command failure"; + break; + } action = ACTION_FAIL; error = -EREMOTEIO; } else diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index c6af4c1..352bc77 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -99,6 +99,7 @@ MODULE_ALIAS_SCSI_DEVICE(TYPE_RBC); #endif static void sd_config_discard(struct scsi_disk *, unsigned int); +static void sd_config_write_same(struct scsi_disk *); static int sd_revalidate_disk(struct gendisk *); static void sd_unlock_native_capacity(struct gendisk *disk); static int sd_probe(struct device *); @@ -395,6 +396,45 @@ sd_store_max_medium_access_timeouts(struct device *dev, return err ? err : count; } +static ssize_t +sd_show_write_same_blocks(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct scsi_disk *sdkp = to_scsi_disk(dev); + + return snprintf(buf, 20, "%u\n", sdkp->max_ws_blocks); +} + +static ssize_t +sd_store_write_same_blocks(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct scsi_disk *sdkp = to_scsi_disk(dev); + struct scsi_device *sdp = sdkp->device; + unsigned long max; + int err; + + if (!capable(CAP_SYS_ADMIN)) + return -EACCES; + + if (sdp->type != TYPE_DISK) + return -EINVAL; + + err = kstrtoul(buf, 10, &max); + + if (err) + return err; + + if (max == 0) + sdp->no_write_same = 1; + else if (max <= SD_MAX_WS16_BLOCKS) + sdkp->max_ws_blocks = max; + + sd_config_write_same(sdkp); + + return count; +} + static struct device_attribute sd_disk_attrs[] = { __ATTR(cache_type, S_IRUGO|S_IWUSR, sd_show_cache_type, sd_store_cache_type), @@ -410,6 +450,8 @@ static struct device_attribute sd_disk_attrs[] = { __ATTR(thin_provisioning, S_IRUGO, sd_show_thin_provisioning, NULL), __ATTR(provisioning_mode, S_IRUGO|S_IWUSR, sd_show_provisioning_mode, sd_store_provisioning_mode), + __ATTR(max_write_same_blocks, S_IRUGO|S_IWUSR, + sd_show_write_same_blocks, sd_store_write_same_blocks), __ATTR(max_medium_access_timeouts, S_IRUGO|S_IWUSR, sd_show_max_medium_access_timeouts, sd_store_max_medium_access_timeouts), @@ -561,19 +603,23 @@ static void sd_config_discard(struct scsi_disk *sdkp, unsigned int mode) return; case SD_LBP_UNMAP: - max_blocks = min_not_zero(sdkp->max_unmap_blocks, 0xffffffff); + max_blocks = min_not_zero(sdkp->max_unmap_blocks, + (u32)SD_MAX_WS16_BLOCKS); break; case SD_LBP_WS16: - max_blocks = min_not_zero(sdkp->max_ws_blocks, 0xffffffff); + max_blocks = min_not_zero(sdkp->max_ws_blocks, + (u32)SD_MAX_WS16_BLOCKS); break; case SD_LBP_WS10: - max_blocks = min_not_zero(sdkp->max_ws_blocks, (u32)0xffff); + max_blocks = min_not_zero(sdkp->max_ws_blocks, + (u32)SD_MAX_WS10_BLOCKS); break; case SD_LBP_ZERO: - max_blocks = min_not_zero(sdkp->max_ws_blocks, (u32)0xffff); + max_blocks = min_not_zero(sdkp->max_ws_blocks, + (u32)SD_MAX_WS10_BLOCKS); q->limits.discard_zeroes_data = 1; break; } @@ -667,6 +713,83 @@ out: return ret; } +static void sd_config_write_same(struct scsi_disk *sdkp) +{ + struct request_queue *q = sdkp->disk->queue; + unsigned int logical_block_size = sdkp->device->sector_size; + unsigned int blocks = 0; + + if (sdkp->device->no_write_same) { + sdkp->max_ws_blocks = 0; + goto out; + } + + /* Some devices can not handle block counts above 0xffff despite + * supporting WRITE SAME(16). Consequently we default to 64k + * blocks per I/O unless the device explicitly advertises a + * bigger limit. + */ + if (sdkp->max_ws_blocks == 0) + sdkp->max_ws_blocks = SD_MAX_WS10_BLOCKS; + + if (sdkp->ws16 || sdkp->max_ws_blocks > SD_MAX_WS10_BLOCKS) + blocks = min_not_zero(sdkp->max_ws_blocks, + (u32)SD_MAX_WS16_BLOCKS); + else + blocks = min_not_zero(sdkp->max_ws_blocks, + (u32)SD_MAX_WS10_BLOCKS); + +out: + blk_queue_max_write_same_sectors(q, blocks * (logical_block_size >> 9)); +} + +/** + * sd_setup_write_same_cmnd - write the same data to multiple blocks + * @sdp: scsi device to operate one + * @rq: Request to prepare + * + * Will issue either WRITE SAME(10) or WRITE SAME(16) depending on + * preference indicated by target device. + **/ +static int sd_setup_write_same_cmnd(struct scsi_device *sdp, struct request *rq) +{ + struct scsi_disk *sdkp = scsi_disk(rq->rq_disk); + struct bio *bio = rq->bio; + sector_t sector = blk_rq_pos(rq); + unsigned int nr_sectors = blk_rq_sectors(rq); + unsigned int nr_bytes = blk_rq_bytes(rq); + int ret; + + if (sdkp->device->no_write_same) + return BLKPREP_KILL; + + BUG_ON(bio_offset(bio) || bio_iovec(bio)->bv_len != sdp->sector_size); + + sector >>= ilog2(sdp->sector_size) - 9; + nr_sectors >>= ilog2(sdp->sector_size) - 9; + + rq->__data_len = sdp->sector_size; + rq->timeout = SD_WRITE_SAME_TIMEOUT; + memset(rq->cmd, 0, rq->cmd_len); + + if (sdkp->ws16 || sector > 0xffffffff || nr_sectors > 0xffff) { + rq->cmd_len = 16; + rq->cmd[0] = WRITE_SAME_16; + put_unaligned_be64(sector, &rq->cmd[2]); + put_unaligned_be32(nr_sectors, &rq->cmd[10]); + } else { + rq->cmd_len = 10; + rq->cmd[0] = WRITE_SAME; + put_unaligned_be32(sector, &rq->cmd[2]); + put_unaligned_be16(nr_sectors, &rq->cmd[7]); + } + + ret = scsi_setup_blk_pc_cmnd(sdp, rq); + rq->__data_len = nr_bytes; + + return ret; +} + static int scsi_setup_flush_cmnd(struct scsi_device *sdp, struct request *rq) { rq->timeout = SD_FLUSH_TIMEOUT; @@ -712,6 +835,9 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) if (rq->cmd_flags & REQ_DISCARD) { ret = sd_setup_discard_cmnd(sdp, rq); goto out; + } else if (rq->cmd_flags & REQ_WRITE_SAME) { + ret = sd_setup_write_same_cmnd(sdp, rq); + goto out; } else if (rq->cmd_flags & REQ_FLUSH) { ret = scsi_setup_flush_cmnd(sdp, rq); goto out; @@ -1484,8 +1610,9 @@ static int sd_done(struct scsi_cmnd *SCpnt) int sense_valid = 0; int sense_deferred = 0; unsigned char op = SCpnt->cmnd[0]; + unsigned char unmap = SCpnt->cmnd[1] & 8; - if (req->cmd_flags & REQ_DISCARD) { + if (req->cmd_flags & REQ_DISCARD || req->cmd_flags & REQ_WRITE_SAME) { if (!result) { good_bytes = blk_rq_bytes(req); scsi_set_resid(SCpnt, 0); @@ -1542,9 +1669,25 @@ static int sd_done(struct scsi_cmnd *SCpnt) if (sshdr.asc == 0x10) /* DIX: Host detected corruption */ good_bytes = sd_completed_bytes(SCpnt); /* INVALID COMMAND OPCODE or INVALID FIELD IN CDB */ - if ((sshdr.asc == 0x20 || sshdr.asc == 0x24) && - (op == UNMAP || op == WRITE_SAME_16 || op == WRITE_SAME)) - sd_config_discard(sdkp, SD_LBP_DISABLE); + if (sshdr.asc == 0x20 || sshdr.asc == 0x24) { + switch (op) { + case UNMAP: + sd_config_discard(sdkp, SD_LBP_DISABLE); + break; + case WRITE_SAME_16: + case WRITE_SAME: + if (unmap) + sd_config_discard(sdkp, SD_LBP_DISABLE); + else { + sdkp->device->no_write_same = 1; + sd_config_write_same(sdkp); + + good_bytes = 0; + req->__data_len = blk_rq_bytes(req); + req->cmd_flags |= REQ_QUIET; + } + } + } break; default: break; @@ -2380,9 +2523,7 @@ static void sd_read_block_limits(struct scsi_disk *sdkp) if (buffer[3] == 0x3c) { unsigned int lba_count, desc_count; - sdkp->max_ws_blocks = - (u32) min_not_zero(get_unaligned_be64(&buffer[36]), - (u64)0xffffffff); + sdkp->max_ws_blocks = (u32)get_unaligned_be64(&buffer[36]); if (!sdkp->lbpme) goto out; @@ -2475,6 +2616,13 @@ static void sd_read_block_provisioning(struct scsi_disk *sdkp) kfree(buffer); } +static void sd_read_write_same(struct scsi_disk *sdkp, unsigned char *buffer) +{ + if (scsi_report_opcode(sdkp->device, buffer, SD_BUF_SIZE, + WRITE_SAME_16)) + sdkp->ws16 = 1; +} + static int sd_try_extended_inquiry(struct scsi_device *sdp) { /* @@ -2534,6 +2682,7 @@ static int sd_revalidate_disk(struct gendisk *disk) sd_read_write_protect_flag(sdkp, buffer); sd_read_cache_type(sdkp, buffer); sd_read_app_tag_own(sdkp, buffer); + sd_read_write_same(sdkp, buffer); } sdkp->first_scan = 0; @@ -2551,6 +2700,7 @@ static int sd_revalidate_disk(struct gendisk *disk) blk_queue_flush(sdkp->disk->queue, flush); set_capacity(disk, sdkp->capacity); + sd_config_write_same(sdkp); kfree(buffer); out: diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h index 47c52a6..74a1e4c 100644 --- a/drivers/scsi/sd.h +++ b/drivers/scsi/sd.h @@ -14,6 +14,7 @@ #define SD_TIMEOUT (30 * HZ) #define SD_MOD_TIMEOUT (75 * HZ) #define SD_FLUSH_TIMEOUT (60 * HZ) +#define SD_WRITE_SAME_TIMEOUT (120 * HZ) /* * Number of allowed retries @@ -39,6 +40,11 @@ enum { }; enum { + SD_MAX_WS10_BLOCKS = 0xffff, + SD_MAX_WS16_BLOCKS = 0x7fffff, +}; + +enum { SD_LBP_FULL = 0, /* Full logical block provisioning */ SD_LBP_UNMAP, /* Use UNMAP command */ SD_LBP_WS16, /* Use WRITE SAME(16) with UNMAP bit */ @@ -77,6 +83,7 @@ struct scsi_disk { unsigned lbpws : 1; unsigned lbpws10 : 1; unsigned lbpvpd : 1; + unsigned ws16 : 1; }; #define to_scsi_disk(obj) container_of(obj,struct scsi_disk,dev) diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index 6ab376a..92f35ab 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -189,6 +189,9 @@ static int slave_configure(struct scsi_device *sdev) /* Do not attempt to use REPORT SUPPORTED OPERATION CODES */ sdev->no_report_opcodes = 1; + /* Do not attempt to use WRITE SAME */ + sdev->no_write_same = 1; + /* Some disks return the total number of blocks in response * to READ CAPACITY rather than the highest block number. * If this device makes that mistake, tell the sd driver. */ diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 379d465..55367b0 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -136,6 +136,7 @@ struct scsi_device { unsigned use_10_for_rw:1; /* first try 10-byte read / write */ unsigned use_10_for_ms:1; /* first try 10-byte mode sense/select */ unsigned no_report_opcodes:1; /* no REPORT SUPPORTED OPERATION CODES */ + unsigned no_write_same:1; /* no WRITE SAME command */ unsigned skip_ms_page_8:1; /* do not use MODE SENSE page 0x08 */ unsigned skip_ms_page_3f:1; /* do not use MODE SENSE page 0x3f */ unsigned skip_vpd_pages:1; /* do not read VPD pages */ -- cgit v0.10.2 From effded75e24c7941961d473e4f4babed4c52af3c Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 14 Nov 2012 11:23:54 +0300 Subject: ALSA: fm801: precedence bug in snd_fm801_tea575x_get_pins() There is a precedence bug because | has higher precedence than ?:. This code was cut and pasted and I fixed a similar bug a few days ago. Signed-off-by: Dan Carpenter Signed-off-by: Takashi Iwai diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c index cc2e91d..c5806f8 100644 --- a/sound/pci/fm801.c +++ b/sound/pci/fm801.c @@ -767,9 +767,14 @@ static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea) struct fm801 *chip = tea->private_data; unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL)); struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip); - - return (reg & FM801_GPIO_GP(gpio.data)) ? TEA575X_DATA : 0 | - (reg & FM801_GPIO_GP(gpio.most)) ? TEA575X_MOST : 0; + u8 ret; + + ret = 0; + if (reg & FM801_GPIO_GP(gpio.data)) + ret |= TEA575X_DATA; + if (reg & FM801_GPIO_GP(gpio.most)) + ret |= TEA575X_MOST; + return ret; } static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output) -- cgit v0.10.2 From 0d852fe4d27fa82de9fdcbda9a5ac634800b1fd1 Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Tue, 13 Nov 2012 16:43:21 +0100 Subject: i2c: at91: fix SMBus quick command The driver claims to support SMBus quick command but it was not the case. This patch fixes this issue. Without it, i2cdetect finds imaginary devices. And with some IP versions, trying to send 0 byte can cause issue when writing data to an EEPROM. Signed-off-by: Ludovic Desroches Acked-by: Jean-Christophe PLAGNIOL-VILLARD [wsa: improved the commit message] Signed-off-by: Wolfram Sang diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c index aa59a25..c02bf20 100644 --- a/drivers/i2c/busses/i2c-at91.c +++ b/drivers/i2c/busses/i2c-at91.c @@ -39,6 +39,7 @@ #define AT91_TWI_STOP 0x0002 /* Send a Stop Condition */ #define AT91_TWI_MSEN 0x0004 /* Master Transfer Enable */ #define AT91_TWI_SVDIS 0x0020 /* Slave Transfer Disable */ +#define AT91_TWI_QUICK 0x0040 /* SMBus quick command */ #define AT91_TWI_SWRST 0x0080 /* Software Reset */ #define AT91_TWI_MMR 0x0004 /* Master Mode Register */ @@ -212,7 +213,11 @@ static int at91_do_twi_transfer(struct at91_twi_dev *dev) INIT_COMPLETION(dev->cmd_complete); dev->transfer_status = 0; - if (dev->msg->flags & I2C_M_RD) { + + if (!dev->buf_len) { + at91_twi_write(dev, AT91_TWI_CR, AT91_TWI_QUICK); + at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_TXCOMP); + } else if (dev->msg->flags & I2C_M_RD) { unsigned start_flags = AT91_TWI_START; if (at91_twi_read(dev, AT91_TWI_SR) & AT91_TWI_RXRDY) { -- cgit v0.10.2 From 23ff2f0f6128b4c310fbb274dbb91cc2f9b6ab06 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Wed, 14 Nov 2012 09:39:31 +0000 Subject: regulator: core: Avoid deadlock when regulator_register fails When regulator_register fails and exits through the scrub path the regulator_put function was called whilst holding the regulator_list_mutex, causing deadlock. This patch adds a private version of the regulator_put function which can be safely called whilst holding the mutex, replacing the aforementioned call. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 5c4829c..3ebc06b 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1381,22 +1381,14 @@ struct regulator *regulator_get_exclusive(struct device *dev, const char *id) } EXPORT_SYMBOL_GPL(regulator_get_exclusive); -/** - * regulator_put - "free" the regulator source - * @regulator: regulator source - * - * Note: drivers must ensure that all regulator_enable calls made on this - * regulator source are balanced by regulator_disable calls prior to calling - * this function. - */ -void regulator_put(struct regulator *regulator) +/* Locks held by regulator_put() */ +static void _regulator_put(struct regulator *regulator) { struct regulator_dev *rdev; if (regulator == NULL || IS_ERR(regulator)) return; - mutex_lock(®ulator_list_mutex); rdev = regulator->rdev; debugfs_remove_recursive(regulator->debugfs); @@ -1412,6 +1404,20 @@ void regulator_put(struct regulator *regulator) rdev->exclusive = 0; module_put(rdev->owner); +} + +/** + * regulator_put - "free" the regulator source + * @regulator: regulator source + * + * Note: drivers must ensure that all regulator_enable calls made on this + * regulator source are balanced by regulator_disable calls prior to calling + * this function. + */ +void regulator_put(struct regulator *regulator) +{ + mutex_lock(®ulator_list_mutex); + _regulator_put(regulator); mutex_unlock(®ulator_list_mutex); } EXPORT_SYMBOL_GPL(regulator_put); @@ -3445,7 +3451,7 @@ unset_supplies: scrub: if (rdev->supply) - regulator_put(rdev->supply); + _regulator_put(rdev->supply); if (rdev->ena_gpio) gpio_free(rdev->ena_gpio); kfree(rdev->constraints); -- cgit v0.10.2 From 04baaa27b43d389879237b32f8bd194a94cf1ca7 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 13 Nov 2012 21:28:44 +0100 Subject: iwlwifi: fix monitor mode FCS flag When the firmware is in SNIFFER mode, it leaves the FCS at the end of frame. Not telling mac80211 means it won't add the right flag to the radiotap header and that confuses wireshark. Since mac80211 doesn't have a per-packet flag, set the HW flag dynamically. This works as the monitor vif can only be present in the driver by itself. This fixes a regression introduced by my commit 578977264199de9815ace51ade87cec4894cf010 Author: Johannes Berg Date: Fri May 11 10:53:18 2012 +0200 iwlwifi: support explicit monitor interface Cc: stable@vger.kernel.org [3.5+] Reported-by: MARK PHILLIPS Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c index fa4d1b8..2d9eee9 100644 --- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c @@ -1354,6 +1354,20 @@ static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, vif_priv->ctx = ctx; ctx->vif = vif; + /* + * In SNIFFER device type, the firmware reports the FCS to + * the host, rather than snipping it off. Unfortunately, + * mac80211 doesn't (yet) provide a per-packet flag for + * this, so that we have to set the hardware flag based + * on the interfaces added. As the monitor interface can + * only be present by itself, and will be removed before + * other interfaces are added, this is safe. + */ + if (vif->type == NL80211_IFTYPE_MONITOR) + priv->hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS; + else + priv->hw->flags &= ~IEEE80211_HW_RX_INCLUDES_FCS; + err = iwl_setup_interface(priv, ctx); if (!err || reset) goto out; -- cgit v0.10.2 From 9aadd70aed60b47e367e7a1a6b9068daba04fe05 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Tue, 6 Nov 2012 16:31:32 +0000 Subject: Revert "ARM: OMAP: convert I2C driver to PM QoS for MPU latency constraints" This reverts commit 3db11feffc1ad2ab9dea27789e6b5b3032827adc (ARM: OMAP: convert I2C driver to PM QoS for MPU latency constraints). This commit causes I2C timeouts to appear on several OMAP3430/3530-based boards: http://marc.info/?l=linux-arm-kernel&m=135071372426971&w=2 http://marc.info/?l=linux-arm-kernel&m=135067558415214&w=2 http://marc.info/?l=linux-arm-kernel&m=135216013608196&w=2 and appears to have been sent for merging before one of its prerequisites was merged: http://marc.info/?l=linux-arm-kernel&m=135219411617621&w=2 Signed-off-by: Paul Walmsley Acked-by: Jean Pihet Signed-off-by: Wolfram Sang diff --git a/arch/arm/plat-omap/i2c.c b/arch/arm/plat-omap/i2c.c index a5683a8..6013831 100644 --- a/arch/arm/plat-omap/i2c.c +++ b/arch/arm/plat-omap/i2c.c @@ -26,12 +26,14 @@ #include #include #include +#include #include #include #include #include #include +#include #include #define OMAP_I2C_SIZE 0x3f @@ -127,6 +129,16 @@ static inline int omap1_i2c_add_bus(int bus_id) #ifdef CONFIG_ARCH_OMAP2PLUS +/* + * XXX This function is a temporary compatibility wrapper - only + * needed until the I2C driver can be converted to call + * omap_pm_set_max_dev_wakeup_lat() and handle a return code. + */ +static void omap_pm_set_max_mpu_wakeup_lat_compat(struct device *dev, long t) +{ + omap_pm_set_max_mpu_wakeup_lat(dev, t); +} + static inline int omap2_i2c_add_bus(int bus_id) { int l; @@ -158,6 +170,15 @@ static inline int omap2_i2c_add_bus(int bus_id) dev_attr = (struct omap_i2c_dev_attr *)oh->dev_attr; pdata->flags = dev_attr->flags; + /* + * When waiting for completion of a i2c transfer, we need to + * set a wake up latency constraint for the MPU. This is to + * ensure quick enough wakeup from idle, when transfer + * completes. + * Only omap3 has support for constraints + */ + if (cpu_is_omap34xx()) + pdata->set_mpu_wkup_lat = omap_pm_set_max_mpu_wakeup_lat_compat; pdev = omap_device_build(name, bus_id, oh, pdata, sizeof(struct omap_i2c_bus_platform_data), NULL, 0, 0); diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index db31eae..0b02543 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -43,7 +43,6 @@ #include #include #include -#include /* I2C controller revisions */ #define OMAP_I2C_OMAP1_REV_2 0x20 @@ -187,8 +186,9 @@ struct omap_i2c_dev { int reg_shift; /* bit shift for I2C register addresses */ struct completion cmd_complete; struct resource *ioarea; - u32 latency; /* maximum MPU wkup latency */ - struct pm_qos_request pm_qos_request; + u32 latency; /* maximum mpu wkup latency */ + void (*set_mpu_wkup_lat)(struct device *dev, + long latency); u32 speed; /* Speed of bus in kHz */ u32 dtrev; /* extra revision from DT */ u32 flags; @@ -494,7 +494,9 @@ static void omap_i2c_resize_fifo(struct omap_i2c_dev *dev, u8 size, bool is_rx) dev->b_hw = 1; /* Enable hardware fixes */ /* calculate wakeup latency constraint for MPU */ - dev->latency = (1000000 * dev->threshold) / (1000 * dev->speed / 8); + if (dev->set_mpu_wkup_lat != NULL) + dev->latency = (1000000 * dev->threshold) / + (1000 * dev->speed / 8); } /* @@ -629,16 +631,8 @@ omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num) if (r < 0) goto out; - /* - * When waiting for completion of a i2c transfer, we need to - * set a wake up latency constraint for the MPU. This is to - * ensure quick enough wakeup from idle, when transfer - * completes. - */ - if (dev->latency) - pm_qos_add_request(&dev->pm_qos_request, - PM_QOS_CPU_DMA_LATENCY, - dev->latency); + if (dev->set_mpu_wkup_lat != NULL) + dev->set_mpu_wkup_lat(dev->dev, dev->latency); for (i = 0; i < num; i++) { r = omap_i2c_xfer_msg(adap, &msgs[i], (i == (num - 1))); @@ -646,8 +640,8 @@ omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num) break; } - if (dev->latency) - pm_qos_remove_request(&dev->pm_qos_request); + if (dev->set_mpu_wkup_lat != NULL) + dev->set_mpu_wkup_lat(dev->dev, -1); if (r == 0) r = num; @@ -1104,6 +1098,7 @@ omap_i2c_probe(struct platform_device *pdev) } else if (pdata != NULL) { dev->speed = pdata->clkrate; dev->flags = pdata->flags; + dev->set_mpu_wkup_lat = pdata->set_mpu_wkup_lat; dev->dtrev = pdata->rev; } @@ -1159,8 +1154,9 @@ omap_i2c_probe(struct platform_device *pdev) dev->b_hw = 1; /* Enable hardware fixes */ /* calculate wakeup latency constraint for MPU */ - dev->latency = (1000000 * dev->fifo_size) / - (1000 * dev->speed / 8); + if (dev->set_mpu_wkup_lat != NULL) + dev->latency = (1000000 * dev->fifo_size) / + (1000 * dev->speed / 8); } /* reset ASAP, clearing any IRQs */ diff --git a/include/linux/i2c-omap.h b/include/linux/i2c-omap.h index df804ba..92a0dc7 100644 --- a/include/linux/i2c-omap.h +++ b/include/linux/i2c-omap.h @@ -34,6 +34,7 @@ struct omap_i2c_bus_platform_data { u32 clkrate; u32 rev; u32 flags; + void (*set_mpu_wkup_lat)(struct device *dev, long set); }; #endif -- cgit v0.10.2 From 10e44239f67d0b6fb74006e61a7e883b8075247a Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 13 Nov 2012 11:22:48 +0100 Subject: ALSA: usb-audio: Fix mutex deadlock at disconnection The recent change for USB-audio disconnection race fixes introduced a mutex deadlock again. There is a circular dependency between chip->shutdown_rwsem and pcm->open_mutex, depicted like below, when a device is opened during the disconnection operation: A. snd_usb_audio_disconnect() -> card.c::register_mutex -> chip->shutdown_rwsem (write) -> snd_card_disconnect() -> pcm.c::register_mutex -> pcm->open_mutex B. snd_pcm_open() -> pcm->open_mutex -> snd_usb_pcm_open() -> chip->shutdown_rwsem (read) Since the chip->shutdown_rwsem protection in the case A is required only for turning on the chip->shutdown flag and it doesn't have to be taken for the whole operation, we can reduce its window in snd_usb_audio_disconnect(). Reported-by: Jiri Slaby Cc: Signed-off-by: Takashi Iwai diff --git a/sound/usb/card.c b/sound/usb/card.c index 282f0fc..dbf7999 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -559,9 +559,11 @@ static void snd_usb_audio_disconnect(struct usb_device *dev, return; card = chip->card; - mutex_lock(®ister_mutex); down_write(&chip->shutdown_rwsem); chip->shutdown = 1; + up_write(&chip->shutdown_rwsem); + + mutex_lock(®ister_mutex); chip->num_interfaces--; if (chip->num_interfaces <= 0) { snd_card_disconnect(card); @@ -582,11 +584,9 @@ static void snd_usb_audio_disconnect(struct usb_device *dev, snd_usb_mixer_disconnect(p); } usb_chip[chip->index] = NULL; - up_write(&chip->shutdown_rwsem); mutex_unlock(®ister_mutex); snd_card_free_when_closed(card); } else { - up_write(&chip->shutdown_rwsem); mutex_unlock(®ister_mutex); } } -- cgit v0.10.2 From aedc256dd032fe9b0691fdd0f67b5e65e3e7bc0d Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 14 Nov 2012 16:22:45 +0200 Subject: i2c: omap: ensure writes to dev->buf_len are ordered if we allow compiler reorder our writes, we could fall into a situation where dev->buf_len is reset for no apparent reason. This bug was found with a simple script which would transfer data to an i2c client from 1 to 1024 bytes (a simple for loop), when we got to transfer sizes bigger than the fifo size, dev->buf_len was reset to zero before we had an oportunity to handle XDR Interrupt. Because dev->buf_len was zero, we entered omap_i2c_transmit_data() to transfer zero bytes, which would mean we would just silently exit omap_i2c_transmit_data() without actually writing anything to DATA register. That would cause XDR IRQ to trigger forever and we would never transfer the remaining bytes. After adding the memory barrier, we also drop resetting dev->buf_len to zero in omap_i2c_xfer_msg() because both omap_i2c_transmit_data() and omap_i2c_receive_data() will act until dev->buf_len reaches zero, rendering the other write in omap_i2c_xfer_msg() redundant. This patch has been tested with pandaboard for a few iterations of the script mentioned above. Signed-off-by: Felipe Balbi Signed-off-by: Wolfram Sang diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 0b02543..3525c9e 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -524,6 +524,9 @@ static int omap_i2c_xfer_msg(struct i2c_adapter *adap, dev->buf = msg->buf; dev->buf_len = msg->len; + /* make sure writes to dev->buf_len are ordered */ + barrier(); + omap_i2c_write_reg(dev, OMAP_I2C_CNT_REG, dev->buf_len); /* Clear the FIFO Buffers */ @@ -581,7 +584,6 @@ static int omap_i2c_xfer_msg(struct i2c_adapter *adap, */ timeout = wait_for_completion_timeout(&dev->cmd_complete, OMAP_I2C_TIMEOUT); - dev->buf_len = 0; if (timeout == 0) { dev_err(dev->dev, "controller timed out\n"); omap_i2c_init(dev); -- cgit v0.10.2 From d61f978b8f26d2392c88249f877e46e2c2b5561d Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sun, 4 Nov 2012 23:13:09 +0100 Subject: brcmfmac: fix typo in CONFIG_BRCMISCAN The old ifdef CONFIG_BRCMFISCAN looks wrong to me and it makes more sense when CONFIG_BRCMISCAN is used. This patch was just compile tested by me, but not runtime tested. Signed-off-by: Hauke Mehrtens Acked-by: Franky Lin Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index a6f1e81..481345c 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -4401,7 +4401,7 @@ static s32 brcmf_mode_to_nl80211_iftype(s32 mode) static void brcmf_wiphy_pno_params(struct wiphy *wiphy) { -#ifndef CONFIG_BRCMFISCAN +#ifndef CONFIG_BRCMISCAN /* scheduled scan settings */ wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT; wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT; -- cgit v0.10.2 From c019bc119a97aa20372c5a2cf210d209380d397d Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Wed, 14 Nov 2012 19:15:47 +1100 Subject: TTY: hvc_console, fix port reference count going to zero prematurely Commit bdb498c20040 "TTY: hvc_console, add tty install" took the port refcounting out of hvc_open()/hvc_close(), but failed to remove the kref_put() and tty_kref_put() calls in hvc_hangup() that were there to remove the extra references that hvc_open() had taken. The result was that doing a vhangup() when the current terminal was a hvc_console, then closing the current terminal, would end up calling destroy_hvc_struct() and making the port disappear entirely. This meant that Fedora 17 systems would boot up but then not display the login prompt on the console, and attempts to open /dev/hvc0 would give a "No such device" error. This fixes it by removing the extra kref_put() and tty_kref_put() calls. Signed-off-by: Paul Mackerras Acked-by: Jiri Slaby Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c index a5dec1c..13ee53b 100644 --- a/drivers/tty/hvc/hvc_console.c +++ b/drivers/tty/hvc/hvc_console.c @@ -424,7 +424,6 @@ static void hvc_hangup(struct tty_struct *tty) { struct hvc_struct *hp = tty->driver_data; unsigned long flags; - int temp_open_count; if (!hp) return; @@ -444,7 +443,6 @@ static void hvc_hangup(struct tty_struct *tty) return; } - temp_open_count = hp->port.count; hp->port.count = 0; spin_unlock_irqrestore(&hp->port.lock, flags); tty_port_tty_set(&hp->port, NULL); @@ -453,11 +451,6 @@ static void hvc_hangup(struct tty_struct *tty) if (hp->ops->notifier_hangup) hp->ops->notifier_hangup(hp, hp->data); - - while(temp_open_count) { - --temp_open_count; - tty_port_put(&hp->port); - } } /* -- cgit v0.10.2 From 1838b8c487378c6c576029d9e0e07b5a73036bac Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 4 Nov 2012 23:34:18 +0800 Subject: tty: serial: max310x: Add terminating entry for spi_device_id table The spi_device_id table is supposed to be zero-terminated. Signed-off-by: Axel Lin Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c index 2bc28a5..1ab1d2c 100644 --- a/drivers/tty/serial/max310x.c +++ b/drivers/tty/serial/max310x.c @@ -1239,6 +1239,7 @@ static int __devexit max310x_remove(struct spi_device *spi) static const struct spi_device_id max310x_id_table[] = { { "max3107", MAX310X_TYPE_MAX3107 }, { "max3108", MAX310X_TYPE_MAX3108 }, + { } }; MODULE_DEVICE_TABLE(spi, max310x_id_table); -- cgit v0.10.2 From ddd32b4289a6feda9ad9e68b0d85641c389a72ba Mon Sep 17 00:00:00 2001 From: Joonsoo Kim Date: Tue, 13 Nov 2012 02:17:36 +0900 Subject: x86, mm: Correct vmflag test for checking VM_HUGETLB commit 611ae8e3f5204f7480b3b405993b3352cfa16662('enable tlb flush range support for x86') change flush_tlb_mm_range() considerably. After this, we test whether vmflag equal to VM_HUGETLB and it may be always failed, because vmflag usually has other flags simultaneously. Our intention is to check whether this vma is for hughtlb, so correct it according to this purpose. Signed-off-by: Joonsoo Kim Acked-by: Alex Shi Link: http://lkml.kernel.org/r/1352740656-19417-1-git-send-email-js1304@gmail.com Signed-off-by: H. Peter Anvin diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c index 0777f04..60f926c 100644 --- a/arch/x86/mm/tlb.c +++ b/arch/x86/mm/tlb.c @@ -197,7 +197,7 @@ void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start, } if (end == TLB_FLUSH_ALL || tlb_flushall_shift == -1 - || vmflag == VM_HUGETLB) { + || vmflag & VM_HUGETLB) { local_flush_tlb(); goto flush_all; } -- cgit v0.10.2 From f0f98b19e23d4426ca185e3d4ca80e6aff5ef51b Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Tue, 13 Nov 2012 09:48:51 +0100 Subject: regulator: fix voltage check in regulator_is_supported_voltage() regulator_is_supported_voltage() should return true only if the voltage of fixed/constant regulator is between min_uV and max_uV. Signed-off-by: Marek Szyprowski Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 5c4829c..27eb9d6 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1974,7 +1974,7 @@ int regulator_is_supported_voltage(struct regulator *regulator, if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) { ret = regulator_get_voltage(regulator); if (ret >= 0) - return (min_uV >= ret && ret <= max_uV); + return (min_uV <= ret && ret <= max_uV); else return ret; } -- cgit v0.10.2 From 70a6f46d7b0ec03653b9ab3f8063a9717a4a53ef Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Wed, 14 Nov 2012 11:49:53 +0000 Subject: pstore: Fix NULL pointer dereference in console writes Passing a NULL id causes a NULL pointer deference in writers such as erst_writer and efi_pstore_write because they expect to update this id. Pass a dummy id instead. This avoids a cascade of oopses caused when the initial pstore_console_write passes a null which in turn causes writes to the console causing further oopses in subsequent pstore_console_write calls. Signed-off-by: Colin Ian King Acked-by: Kees Cook Cc: stable@vger.kernel.org Signed-off-by: Anton Vorontsov diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index a40da07..947fbe0 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -161,6 +161,7 @@ static void pstore_console_write(struct console *con, const char *s, unsigned c) while (s < e) { unsigned long flags; + u64 id; if (c > psinfo->bufsize) c = psinfo->bufsize; @@ -172,7 +173,7 @@ static void pstore_console_write(struct console *con, const char *s, unsigned c) spin_lock_irqsave(&psinfo->buf_lock, flags); } memcpy(psinfo->buf, s, c); - psinfo->write(PSTORE_TYPE_CONSOLE, 0, NULL, 0, c, psinfo); + psinfo->write(PSTORE_TYPE_CONSOLE, 0, &id, 0, c, psinfo); spin_unlock_irqrestore(&psinfo->buf_lock, flags); s += c; c = e - s; -- cgit v0.10.2 From b2942004fb5c9f3304b77e187b8a1977b3626c9b Mon Sep 17 00:00:00 2001 From: Saurabh Mohan Date: Wed, 14 Nov 2012 18:08:15 -0800 Subject: ipv4/ip_vti.c: VTI fix post-decryption forwarding With the latest kernel there are two things that must be done post decryption so that the packet are forwarded. 1. Remove the mark from the packet. This will cause the packet to not match the ipsec-policy again. However doing this causes the post-decryption check to fail also and the packet will get dropped. (cat /proc/net/xfrm_stat). 2. Remove the sp association in the skbuff so that no policy check is done on the packet for VTI tunnels. Due to #2 above we must now do a security-policy check in the vti rcv path prior to resetting the mark in the skbuff. Signed-off-by: Saurabh Mohan Reported-by: Ruben Herold Signed-off-by: David S. Miller diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c index 1831092..858fddf 100644 --- a/net/ipv4/ip_vti.c +++ b/net/ipv4/ip_vti.c @@ -338,12 +338,17 @@ static int vti_rcv(struct sk_buff *skb) if (tunnel != NULL) { struct pcpu_tstats *tstats; + if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) + return -1; + tstats = this_cpu_ptr(tunnel->dev->tstats); u64_stats_update_begin(&tstats->syncp); tstats->rx_packets++; tstats->rx_bytes += skb->len; u64_stats_update_end(&tstats->syncp); + skb->mark = 0; + secpath_reset(skb); skb->dev = tunnel->dev; return 1; } -- cgit v0.10.2 From 71c6c837a0fe9d291e0764503f09dac0fec59ce1 Mon Sep 17 00:00:00 2001 From: Xiaotian Feng Date: Tue, 13 Nov 2012 19:47:36 +0000 Subject: drivers/net: fix tasklet misuse issue In commit 175c0dff, drivers uses tasklet_kill to avoid put disabled tasklet on the tasklet vec. But some of the drivers uses tasklet_init & tasklet_disable in the driver init code, then tasklet_enable when it is opened. This makes tasklet_enable on a killed tasklet and make ksoftirqd crazy then. Normally, drivers should use tasklet_init/tasklet_kill on device open/remove, and use tasklet_disable/tasklet_enable on device suspend/resume. Reported-by: Peter Wu Tested-by: Peter Wu Signed-off-by: Xiaotian Feng Cc: "David S. Miller" Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/jme.c b/drivers/net/ethernet/jme.c index 92317e9..60ac46f 100644 --- a/drivers/net/ethernet/jme.c +++ b/drivers/net/ethernet/jme.c @@ -1860,10 +1860,14 @@ jme_open(struct net_device *netdev) jme_clear_pm(jme); JME_NAPI_ENABLE(jme); - tasklet_enable(&jme->linkch_task); - tasklet_enable(&jme->txclean_task); - tasklet_hi_enable(&jme->rxclean_task); - tasklet_hi_enable(&jme->rxempty_task); + tasklet_init(&jme->linkch_task, jme_link_change_tasklet, + (unsigned long) jme); + tasklet_init(&jme->txclean_task, jme_tx_clean_tasklet, + (unsigned long) jme); + tasklet_init(&jme->rxclean_task, jme_rx_clean_tasklet, + (unsigned long) jme); + tasklet_init(&jme->rxempty_task, jme_rx_empty_tasklet, + (unsigned long) jme); rc = jme_request_irq(jme); if (rc) @@ -3079,22 +3083,6 @@ jme_init_one(struct pci_dev *pdev, tasklet_init(&jme->pcc_task, jme_pcc_tasklet, (unsigned long) jme); - tasklet_init(&jme->linkch_task, - jme_link_change_tasklet, - (unsigned long) jme); - tasklet_init(&jme->txclean_task, - jme_tx_clean_tasklet, - (unsigned long) jme); - tasklet_init(&jme->rxclean_task, - jme_rx_clean_tasklet, - (unsigned long) jme); - tasklet_init(&jme->rxempty_task, - jme_rx_empty_tasklet, - (unsigned long) jme); - tasklet_disable_nosync(&jme->linkch_task); - tasklet_disable_nosync(&jme->txclean_task); - tasklet_disable_nosync(&jme->rxclean_task); - tasklet_disable_nosync(&jme->rxempty_task); jme->dpi.cur = PCC_P1; jme->reg_ghc = 0; diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c index e558edd..69e0197 100644 --- a/drivers/net/ethernet/micrel/ksz884x.c +++ b/drivers/net/ethernet/micrel/ksz884x.c @@ -5459,8 +5459,10 @@ static int prepare_hardware(struct net_device *dev) rc = request_irq(dev->irq, netdev_intr, IRQF_SHARED, dev->name, dev); if (rc) return rc; - tasklet_enable(&hw_priv->rx_tasklet); - tasklet_enable(&hw_priv->tx_tasklet); + tasklet_init(&hw_priv->rx_tasklet, rx_proc_task, + (unsigned long) hw_priv); + tasklet_init(&hw_priv->tx_tasklet, tx_proc_task, + (unsigned long) hw_priv); hw->promiscuous = 0; hw->all_multi = 0; @@ -7033,16 +7035,6 @@ static int __devinit pcidev_init(struct pci_dev *pdev, spin_lock_init(&hw_priv->hwlock); mutex_init(&hw_priv->lock); - /* tasklet is enabled. */ - tasklet_init(&hw_priv->rx_tasklet, rx_proc_task, - (unsigned long) hw_priv); - tasklet_init(&hw_priv->tx_tasklet, tx_proc_task, - (unsigned long) hw_priv); - - /* tasklet_enable will decrement the atomic counter. */ - tasklet_disable(&hw_priv->rx_tasklet); - tasklet_disable(&hw_priv->tx_tasklet); - for (i = 0; i < TOTAL_PORT_NUM; i++) init_waitqueue_head(&hw_priv->counter[i].counter); diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index 1d04754..77e6db9 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -942,6 +942,10 @@ static int axienet_open(struct net_device *ndev) phy_start(lp->phy_dev); } + /* Enable tasklets for Axi DMA error handling */ + tasklet_init(&lp->dma_err_tasklet, axienet_dma_err_handler, + (unsigned long) lp); + /* Enable interrupts for Axi DMA Tx */ ret = request_irq(lp->tx_irq, axienet_tx_irq, 0, ndev->name, ndev); if (ret) @@ -950,8 +954,7 @@ static int axienet_open(struct net_device *ndev) ret = request_irq(lp->rx_irq, axienet_rx_irq, 0, ndev->name, ndev); if (ret) goto err_rx_irq; - /* Enable tasklets for Axi DMA error handling */ - tasklet_enable(&lp->dma_err_tasklet); + return 0; err_rx_irq: @@ -960,6 +963,7 @@ err_tx_irq: if (lp->phy_dev) phy_disconnect(lp->phy_dev); lp->phy_dev = NULL; + tasklet_kill(&lp->dma_err_tasklet); dev_err(lp->dev, "request_irq() failed\n"); return ret; } @@ -1613,10 +1617,6 @@ static int __devinit axienet_of_probe(struct platform_device *op) goto err_iounmap_2; } - tasklet_init(&lp->dma_err_tasklet, axienet_dma_err_handler, - (unsigned long) lp); - tasklet_disable(&lp->dma_err_tasklet); - return 0; err_iounmap_2: -- cgit v0.10.2 From 769ce4c95e8f77c1d5df82194e54df49d28830c5 Mon Sep 17 00:00:00 2001 From: Kamlakant Patel Date: Wed, 14 Nov 2012 01:41:38 +0000 Subject: net/smsc911x: Fix ready check in cases where WORD_SWAP is needed The chip ready check added by the commit 3ac3546e [Always wait for the chip to be ready] does not work when the register read/write is word swapped. This check has been added before the WORD_SWAP register is programmed, so we need to check for swapped register value as well. Bit 16 is marked as RESERVED in SMSC datasheet, Steve Glendinning checked with SMSC and wrote: The chip architects have concluded we should be reading PMT_CTRL until we see any of bits 0, 8, 16 or 24 set. Then we should read BYTE_TEST to check the byte order is correct (as we already do). The rationale behind this is that some of the chip variants have word order swapping features too, so the READY bit could actually be in any of the 4 possible locations. The architects have confirmed that if any of these 4 positions is set the chip is ready. The other 3 locations will either never be set or can only go high after READY does (so also indicate the device is ready). This change will check for the READY bit at the 16th position. We do not check the other two cases (bit 8 and 24) since the driver does not support byte-swapped register read/write. Signed-off-by: Kamlakant Patel Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c index 62d1baf..c53c0f4 100644 --- a/drivers/net/ethernet/smsc/smsc911x.c +++ b/drivers/net/ethernet/smsc/smsc911x.c @@ -2110,7 +2110,7 @@ static void __devinit smsc911x_read_mac_address(struct net_device *dev) static int __devinit smsc911x_init(struct net_device *dev) { struct smsc911x_data *pdata = netdev_priv(dev); - unsigned int byte_test; + unsigned int byte_test, mask; unsigned int to = 100; SMSC_TRACE(pdata, probe, "Driver Parameters:"); @@ -2130,9 +2130,22 @@ static int __devinit smsc911x_init(struct net_device *dev) /* * poll the READY bit in PMT_CTRL. Any other access to the device is * forbidden while this bit isn't set. Try for 100ms + * + * Note that this test is done before the WORD_SWAP register is + * programmed. So in some configurations the READY bit is at 16 before + * WORD_SWAP is written to. This issue is worked around by waiting + * until either bit 0 or bit 16 gets set in PMT_CTRL. + * + * SMSC has confirmed that checking bit 16 (marked as reserved in + * the datasheet) is fine since these bits "will either never be set + * or can only go high after READY does (so also indicate the device + * is ready)". */ - while (!(smsc911x_reg_read(pdata, PMT_CTRL) & PMT_CTRL_READY_) && --to) + + mask = PMT_CTRL_READY_ | swahw32(PMT_CTRL_READY_); + while (!(smsc911x_reg_read(pdata, PMT_CTRL) & mask) && --to) udelay(1000); + if (to == 0) { pr_err("Device not READY in 100ms aborting\n"); return -ENODEV; -- cgit v0.10.2 From 80d11788fb8f4d9fcfae5ad508c7f1b65e8b28a3 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 14 Nov 2012 22:32:15 -0500 Subject: Revert "drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before mdiobus_free" This reverts commit aa731872f7d33dcb8b54dad0cfb82d4e4d195d7e. As pointed out by Ben Hutchings, this change is not correct. mdiobus_unregister() can't be called if the bus isn't registered yet, however this change can result in situations which cause that to happen. Part of the confusion here revolves around the fact that the callers of this module control registration/unregistration, rather than the module itself. Signed-off-by: David S. Miller diff --git a/drivers/net/phy/mdio-bitbang.c b/drivers/net/phy/mdio-bitbang.c index 6428fcb..daec9b0 100644 --- a/drivers/net/phy/mdio-bitbang.c +++ b/drivers/net/phy/mdio-bitbang.c @@ -234,7 +234,6 @@ void free_mdio_bitbang(struct mii_bus *bus) struct mdiobb_ctrl *ctrl = bus->priv; module_put(ctrl->ops->owner); - mdiobus_unregister(bus); mdiobus_free(bus); } EXPORT_SYMBOL(free_mdio_bitbang); -- cgit v0.10.2 From cbc351abe3c9bcec11c712dd41bb212748fd46d3 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 15 Nov 2012 11:58:24 +0100 Subject: pinctrl/samsung: don't allow enabling pinctrl-samsung standalone The main samsung pinctrl module references the specific exynos4210 pinctrl driver, which selects the main driver in Kconfig. Making the main driver a silent "bool" option avoid this potential build error if CONFIG_PINCTRL_SAMSUNG=y && CONFIG_PINCTRL_EXYNOS4=n: drivers/built-in.o:(.rodata+0x4e4): undefined reference to `exynos4210_pin_ctrl' Signed-off-by: Arnd Bergmann Cc: Tomasz Figa Cc: Kyungmin Park Cc: Linus Walleij Acked-by: Kukjin Kim Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index d96caef..aeecf0f 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -178,7 +178,7 @@ config PINCTRL_COH901 ports of 8 GPIO pins each. config PINCTRL_SAMSUNG - bool "Samsung pinctrl driver" + bool depends on OF && GPIOLIB select PINMUX select PINCONF -- cgit v0.10.2 From af451af4e0a3a4cd7536843f585c96a9b095a4e8 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 9 Oct 2012 23:26:06 -0700 Subject: mtd: nand: fix Samsung SLC NAND identification regression A combination of the following two commits caused a regression in 3.7-rc1 when identifying some Samsung NAND, so that some previously working NAND were no longer detected properly: commit e3b88bd604283ef83ae6e8f53622d5b1ffe9d43a mtd: nand: add generic READ ID length calculation functions commit e2d3a35ee427aaba99b6c68a56609ce276c51270 mtd: nand: detect Samsung K9GBG08U0A, K9GAG08U0F ID Particularly, a regression was seen on Samsung K9F2G08U0B, with the following full 8-byte READ ID string: ec da 10 95 44 00 ec da The basic problem is that Samsung manufactures both SLC and MLC NAND that use a non-standard decoding table for deriving information from their IDs. I have heuristically determined that all the chips that use the new table have ID strings which wrap around after the 6th byte. Unfortunately, I overlooked the fact that some older Samsung SLC (which use a different decoding table) have "5 byte ID strings" which also wrap around after the 6th byte. This patch re-introduces a distinction between these old and new Samsung NAND by checking that the 6th byte is non-zero, allowing both old and new Samsung NAND to be detected properly. Signed-off-by: Brian Norris Tested-by: Brian Norris Reported-by: Marek Vasut Tested-by: Marek Vasut Signed-off-by: Artem Bityutskiy diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index ec6841d..d5ece6e 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2983,13 +2983,14 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip, /* * Field definitions are in the following datasheets: * Old style (4,5 byte ID): Samsung K9GAG08U0M (p.32) - * New style (6 byte ID): Samsung K9GAG08U0F (p.44) + * New Samsung (6 byte ID): Samsung K9GAG08U0F (p.44) * Hynix MLC (6 byte ID): Hynix H27UBG8T2B (p.22) * - * Check for ID length, cell type, and Hynix/Samsung ID to decide what - * to do. + * Check for ID length, non-zero 6th byte, cell type, and Hynix/Samsung + * ID to decide what to do. */ - if (id_len == 6 && id_data[0] == NAND_MFR_SAMSUNG) { + if (id_len == 6 && id_data[0] == NAND_MFR_SAMSUNG && + id_data[5] != 0x00) { /* Calc pagesize */ mtd->writesize = 2048 << (extid & 0x03); extid >>= 2; -- cgit v0.10.2 From 6924d99fcdf1a688538a3cdebd1f135c22eec191 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 14 Nov 2012 21:46:30 -0800 Subject: mtd: nand: fix Samsung SLC detection regression This patch fixes errors seen in identifying old Samsung SLC, due to the following commits: commit e2d3a35ee427aaba99b6c68a56609ce276c51270 mtd: nand: detect Samsung K9GBG08U0A, K9GAG08U0F ID commit e3b88bd604283ef83ae6e8f53622d5b1ffe9d43a mtd: nand: add generic READ ID length calculation functions Some Samsung NAND with "5-byte" ID really appear to have 6-byte IDs, with wraparound like: Samsung K9K8G08U0D ec d3 51 95 58 ec ec d3 Samsung K9F1G08U0C ec f1 00 95 40 ec ec f1 Samsung K9F2G08U0B ec da 10 95 44 00 ec da This bad wraparound makes it hard to reliably detect the difference between Samsung SLC with 5-byte ID and Samsung SLC with 6-byte ID. The fix is to, for now, only use the new Samsung table for MLC. We cannot support the new SLC (K9FAG08U0M) until Samsung gives better ID decode information. Note that this applies in addition to the previous regression fix: commit bc86cf7af2ebda88056538e8edff852ee627f76a mtd: nand: fix Samsung SLC NAND identification regression Together, these patches completely restore the previous detection behavior so that we cannot see any more regressions in Samsung SLC NAND (finger crossed). With luck, I can get a hold of a Samsung representative and stop having to cross my fingers eventually. Reported-by: Sylwester Nawrocki Tested-by: Sylwester Nawrocki Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index d5ece6e..1a03b7f 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2990,6 +2990,7 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip, * ID to decide what to do. */ if (id_len == 6 && id_data[0] == NAND_MFR_SAMSUNG && + (chip->cellinfo & NAND_CI_CELLTYPE_MSK) && id_data[5] != 0x00) { /* Calc pagesize */ mtd->writesize = 2048 << (extid & 0x03); -- cgit v0.10.2 From 949a05d03490e39e773e8652ccab9157e6f595b4 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Fri, 2 Nov 2012 12:30:53 +0000 Subject: [PARISC] fix virtual aliasing issue in get_shared_area() On Thu, 2012-11-01 at 16:45 -0700, Michel Lespinasse wrote: > Looking at the arch/parisc/kernel/sys_parisc.c implementation of > get_shared_area(), I do have a concern though. The function basically > ignores the pgoff argument, so that if one creates a shared mapping of > pages 0-N of a file, and then a separate shared mapping of pages 1-N > of that same file, both will have the same cache offset for their > starting address. > > This looks like this would create obvious aliasing issues. Am I > misreading this ? I can't understand how this could work good enough > to be undetected, so there must be something I'm missing here ??? This turns out to be correct and we need to pay attention to the pgoff as well as the address when creating the virtual address for the area. Fortunately, the bug is rarely triggered as most applications which use pgoff tend to use large values (git being the primary one, and it uses pgoff in multiples of 16MB) which are larger than our cache coherency modulus, so the problem isn't often seen in practise. Reported-by: Michel Lespinasse Cc: Signed-off-by: James Bottomley diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c index 7426e40..f76c108 100644 --- a/arch/parisc/kernel/sys_parisc.c +++ b/arch/parisc/kernel/sys_parisc.c @@ -73,6 +73,8 @@ static unsigned long get_shared_area(struct address_space *mapping, struct vm_area_struct *vma; int offset = mapping ? get_offset(mapping) : 0; + offset = (offset + (pgoff << PAGE_SHIFT)) & 0x3FF000; + addr = DCACHE_ALIGN(addr - offset) + offset; for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) { -- cgit v0.10.2 From b9196395c905edec512dfd6690428084228c16ec Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 14 Nov 2012 09:10:39 -0500 Subject: drm/radeon: fix logic error in atombios_encoders.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=50431 Reported-by: David Binderman Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Michel Dänzer diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index ba498f8..010bae1 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -1625,7 +1625,7 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode) atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_SETUP, 0, 0); atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0); /* some early dce3.2 boards have a bug in their transmitter control table */ - if ((rdev->family != CHIP_RV710) || (rdev->family != CHIP_RV730)) + if ((rdev->family != CHIP_RV710) && (rdev->family != CHIP_RV730)) atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0); } if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) { -- cgit v0.10.2 From ae289dc1f474ff380e9d7601f02e4d766cbba408 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 15 Nov 2012 09:22:40 +0100 Subject: s390/3215: fix tty close handling The 3215 console always has the RAW3215_FIXED flag set, which causes raw3215_shutdown() not to wait for outstanding I/O requests if an attached tty gets closed. The flag however can be simply removed, so we can guarantee that all requests belonging to the tty have been processed when the tty is closed. However the tasklet that belongs to the 3215 device may be scheduled even if there is no tty attached anymore, since we have a race between console and tty processing. Thefore unconditional tty_wakekup() in raw3215_wakeup() can cause the following NULL pointer dereference: 3.465368 Unable to handle kernel pointer dereference at virtual kernel address (null) 3.465448 Oops: 0004 #1 SMP 3.465454 Modules linked in: 3.465459 CPU: 1 Not tainted 3.6.0 #1 3.465462 Process swapper/1 (pid: 0, task: 000000003ffa4428, ksp: 000000003ffb7ce0) 3.465466 Krnl PSW : 0404100180000000 0000000000162f86 (__wake_up+0x46/0xb8) 3.465480 R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:0 CC:1 PM:0 EA:3 Krnl GPRS: fffffffffffffffe 0000000000000000 0000000000000160 0000000000000001 3.465492 0000000000000001 0000000000000004 0000000000000004 000000000096b490 3.465499 0000000000000001 0000000000000100 0000000000000001 0000000000000001 3.465506 070000003fc87d60 0000000000000160 000000003fc87d68 000000003fc87d00 3.465526 Krnl Code: 0000000000162f76: e3c0f0a80004 lg %r12,168(%r15) 0000000000162f7c: 58000370 l %r0,880 #0000000000162f80: c007ffffffff00 xilf %r0,4294967295 >0000000000162f86: ba102000 cs %r1,%r0,0(%r2) 0000000000162f8a: 1211 ltr %r1,%r1 0000000000162f8c: a774002f brc 7,162fea 0000000000162f90: b904002d lgr %r2,%r13 0000000000162f94: b904003a lgr %r3,%r10 3.465597 Call Trace: 3.465599 (<0400000000000000> 0x400000000000000) 3.465602 <000000000048c77e> raw3215_wakeup+0x2e/0x40 3.465607 <0000000000134d66> tasklet_action+0x96/0x168 3.465612 <000000000013423c> __do_softirq+0xd8/0x21c 3.465615 <0000000000134678> irq_exit+0xa8/0xac 3.465617 <000000000046c232> do_IRQ+0x182/0x248 3.465621 <00000000005c8296> io_return+0x0/0x8 3.465625 <00000000005c7cac> vtime_stop_cpu+0x4c/0xb8 3.465629 (<0000000000194e06> tick_nohz_idle_enter+0x4e/0x74) 3.465633 <0000000000104760> cpu_idle+0x170/0x184 3.465636 <00000000005b5182> smp_start_secondary+0xd6/0xe0 3.465641 <00000000005c86be> restart_int_handler+0x56/0x6c 3.465643 <0000000000000000> 0x0 3.465645 Last Breaking-Event-Address: 3.465647 <0000000000403136> tty_wakeup+0x46/0x98 3.465652 3.465654 Kernel panic - not syncing: Fatal exception in interrupt 01: HCPGIR450W CP entered; disabled wait PSW 00020001 80000000 00000000 0010F63C The easiest solution is simply to check if tty is NULL in the tasklet. If it is NULL nothing is to do (no tty attached), otherwise tty_wakeup() can be called, since we hold a reference to the tty. This is not nice... but it is a small patch and it works. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index 9ffb6d5..4ed343e 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -44,7 +44,6 @@ #define RAW3215_NR_CCWS 3 #define RAW3215_TIMEOUT HZ/10 /* time for delayed output */ -#define RAW3215_FIXED 1 /* 3215 console device is not be freed */ #define RAW3215_WORKING 4 /* set if a request is being worked on */ #define RAW3215_THROTTLED 8 /* set if reading is disabled */ #define RAW3215_STOPPED 16 /* set if writing is disabled */ @@ -339,8 +338,10 @@ static void raw3215_wakeup(unsigned long data) struct tty_struct *tty; tty = tty_port_tty_get(&raw->port); - tty_wakeup(tty); - tty_kref_put(tty); + if (tty) { + tty_wakeup(tty); + tty_kref_put(tty); + } } /* @@ -629,8 +630,7 @@ static void raw3215_shutdown(struct raw3215_info *raw) DECLARE_WAITQUEUE(wait, current); unsigned long flags; - if (!(raw->port.flags & ASYNC_INITIALIZED) || - (raw->flags & RAW3215_FIXED)) + if (!(raw->port.flags & ASYNC_INITIALIZED)) return; /* Wait for outstanding requests, then free irq */ spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); @@ -926,8 +926,6 @@ static int __init con3215_init(void) dev_set_drvdata(&cdev->dev, raw); cdev->handler = raw3215_irq; - raw->flags |= RAW3215_FIXED; - /* Request the console irq */ if (raw3215_startup(raw) != 0) { raw3215_free_info(raw); -- cgit v0.10.2 From 0da9a0c2638c8476b4a5021841912f249e3187dc Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Thu, 15 Nov 2012 03:49:05 +0000 Subject: sctp: fix /proc/net/sctp/ memory leak Commit 13d782f ("sctp: Make the proc files per network namespace.") changed the /proc/net/sctp/ struct file_operations opener functions to use single_open_net() and seq_open_net(). Avoid leaking memory by using single_release_net() and seq_release_net() as the release functions. Discovered with Trinity (the syscall fuzzer). Signed-off-by: Tommi Rantala Acked-by: Neil Horman Cc: "Eric W. Biederman" Signed-off-by: David S. Miller diff --git a/net/sctp/proc.c b/net/sctp/proc.c index c3bea26..9966e7b 100644 --- a/net/sctp/proc.c +++ b/net/sctp/proc.c @@ -102,7 +102,7 @@ static const struct file_operations sctp_snmp_seq_fops = { .open = sctp_snmp_seq_open, .read = seq_read, .llseek = seq_lseek, - .release = single_release, + .release = single_release_net, }; /* Set up the proc fs entry for 'snmp' object. */ @@ -251,7 +251,7 @@ static const struct file_operations sctp_eps_seq_fops = { .open = sctp_eps_seq_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_net, }; /* Set up the proc fs entry for 'eps' object. */ @@ -372,7 +372,7 @@ static const struct file_operations sctp_assocs_seq_fops = { .open = sctp_assocs_seq_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_net, }; /* Set up the proc fs entry for 'assocs' object. */ @@ -517,7 +517,7 @@ static const struct file_operations sctp_remaddr_seq_fops = { .open = sctp_remaddr_seq_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_net, }; int __net_init sctp_remaddr_proc_init(struct net *net) -- cgit v0.10.2 From 93532c8a4890871aa0d84dd91b80dad9f58542e0 Mon Sep 17 00:00:00 2001 From: Igor Mazanov Date: Thu, 15 Nov 2012 21:07:00 +0400 Subject: clk: remove inline usage from clk-provider.h MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Users of GCC 4.7 have reported compiler errors due to having inline applied to function declarations in clk-provider.h. The definitions exist in drivers/clk/clk.c. An example error: In file included from arch/arm/mach-omap2/clockdomain.c:25:0: arch/arm/mach-omap2/clockdomain.c: In function ‘clkdm_clk_disable’: include/linux/clk-provider.h:338:12: error: inlining failed in call to always_inline ‘__clk_get_enable_count’: function body not available arch/arm/mach-omap2/clockdomain.c:1001:28: error: called from here make[1]: *** [arch/arm/mach-omap2/clockdomain.o] Error 1 make: *** [arch/arm/mach-omap2] Error 2 This patch removes the use of inline from include/linux/clk-provider.h but keeps the function definitions in drivers/clk/clk.c as inlined since they are one-liners. Signed-off-by: Igor Mazanov Acked-by: Paul Walmsley Signed-off-by: Mike Turquette [mturquette@linaro.org: improved subject, added changelog] diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index c127315..f9f5e9e 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -335,8 +335,8 @@ const char *__clk_get_name(struct clk *clk); struct clk_hw *__clk_get_hw(struct clk *clk); u8 __clk_get_num_parents(struct clk *clk); struct clk *__clk_get_parent(struct clk *clk); -inline int __clk_get_enable_count(struct clk *clk); -inline int __clk_get_prepare_count(struct clk *clk); +int __clk_get_enable_count(struct clk *clk); +int __clk_get_prepare_count(struct clk *clk); unsigned long __clk_get_rate(struct clk *clk); unsigned long __clk_get_flags(struct clk *clk); int __clk_is_enabled(struct clk *clk); -- cgit v0.10.2 From ec34232575083fd0f43d3a101e8ebb041b203761 Mon Sep 17 00:00:00 2001 From: Andrew Vagin Date: Thu, 15 Nov 2012 04:03:17 +0000 Subject: tcp: fix retransmission in repair mode Currently if a socket was repaired with a few packet in a write queue, a kernel bug may be triggered: kernel BUG at net/ipv4/tcp_output.c:2330! RIP: 0010:[] tcp_retransmit_skb+0x5ff/0x610 According to the initial realization v3.4-rc2-963-gc0e88ff, all skb-s should look like already posted. This patch fixes code according with this sentence. Here are three points, which were not done in the initial patch: 1. A tcp send head should not be changed 2. Initialize TSO state of a skb 3. Reset the retransmission time This patch moves logic from tcp_sendmsg to tcp_write_xmit. A packet passes the ussual way, but isn't sent to network. This patch solves all described problems and handles tcp_sendpages. Cc: Pavel Emelyanov Cc: "David S. Miller" Cc: Alexey Kuznetsov Cc: James Morris Cc: Hideaki YOSHIFUJI Cc: Patrick McHardy Signed-off-by: Andrey Vagin Acked-by: Pavel Emelyanov Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 197c000..083092e 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1212,7 +1212,7 @@ new_segment: wait_for_sndbuf: set_bit(SOCK_NOSPACE, &sk->sk_socket->flags); wait_for_memory: - if (copied && likely(!tp->repair)) + if (copied) tcp_push(sk, flags & ~MSG_MORE, mss_now, TCP_NAGLE_PUSH); if ((err = sk_stream_wait_memory(sk, &timeo)) != 0) @@ -1223,7 +1223,7 @@ wait_for_memory: } out: - if (copied && likely(!tp->repair)) + if (copied) tcp_push(sk, flags, mss_now, tp->nonagle); release_sock(sk); return copied + copied_syn; diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index cfe6ffe..2798706 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -1986,6 +1986,9 @@ static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle, tso_segs = tcp_init_tso_segs(sk, skb, mss_now); BUG_ON(!tso_segs); + if (unlikely(tp->repair) && tp->repair_queue == TCP_SEND_QUEUE) + goto repair; /* Skip network transmission */ + cwnd_quota = tcp_cwnd_test(tp, skb); if (!cwnd_quota) break; @@ -2026,6 +2029,7 @@ static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle, if (unlikely(tcp_transmit_skb(sk, skb, 1, gfp))) break; +repair: /* Advance the send_head. This one is sent out. * This call will increment packets_out. */ -- cgit v0.10.2 From a652208e0b52c190e57f2a075ffb5e897fe31c3b Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Wed, 14 Nov 2012 02:51:04 +0000 Subject: net: correct check in dev_addr_del() Check (ha->addr == dev->dev_addr) is always true because dev_addr_init() sets this. Correct the check to behave properly on addr removal. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c index 87cc17d..b079c7b 100644 --- a/net/core/dev_addr_lists.c +++ b/net/core/dev_addr_lists.c @@ -319,7 +319,8 @@ int dev_addr_del(struct net_device *dev, const unsigned char *addr, */ ha = list_first_entry(&dev->dev_addrs.list, struct netdev_hw_addr, list); - if (ha->addr == dev->dev_addr && ha->refcount == 1) + if (!memcmp(ha->addr, addr, dev->addr_len) && + ha->type == addr_type && ha->refcount == 1) return -ENOENT; err = __hw_addr_del(&dev->dev_addrs, addr, dev->addr_len, -- cgit v0.10.2 From 888155bbf63a5f955d7a45932ff05e848f715bf0 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 12 Nov 2012 11:07:24 +0000 Subject: vmwgfx: return an -EFAULT if copy_to_user() fails copy_to_user() returns the number of bytes remaining to be copied, but we want to return a negative error code here. I fixed a couple of these last year, but I missed this one. Signed-off-by: Dan Carpenter Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c index b07ca2e..7290811 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c @@ -110,6 +110,8 @@ int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data, memcpy_fromio(bounce, &fifo_mem[SVGA_FIFO_3D_CAPS], size); ret = copy_to_user(buffer, bounce, size); + if (ret) + ret = -EFAULT; vfree(bounce); if (unlikely(ret != 0)) -- cgit v0.10.2 From ac207ed2471150e06af0afc76e4becc701fa2733 Mon Sep 17 00:00:00 2001 From: Zhao Yakui Date: Tue, 13 Nov 2012 18:31:55 +0000 Subject: ttm: Clear the ttm page allocated from high memory zone correctly The TTM page can be allocated from high memory. In such case it is wrong to use the page_address(page) as the virtual address for the high memory page. bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=50241 Signed-off-by: Zhao Yakui Cc: stable@vger.kernel.org Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c index 860dc48..bd2a3b4 100644 --- a/drivers/gpu/drm/ttm/ttm_page_alloc.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c @@ -749,7 +749,10 @@ static int ttm_get_pages(struct page **pages, unsigned npages, int flags, /* clear the pages coming from the pool if requested */ if (flags & TTM_PAGE_FLAG_ZERO_ALLOC) { list_for_each_entry(p, &plist, lru) { - clear_page(page_address(p)); + if (PageHighMem(p)) + clear_highpage(p); + else + clear_page(page_address(p)); } } -- cgit v0.10.2 From 55aa914e9274cf1d55397cc04eb926eb055c79f7 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Fri, 9 Nov 2012 12:10:43 +0000 Subject: drm/ttm: remove unneeded preempt_disable/enable It is unnecessary to disable preemption explicitly while calling copy_highpage(). Because copy_highpage() will do it again through kmap_atomic/kunmap_atomic. Signed-off-by: Akinobu Mita Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index bf82601..7d759a4 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -308,9 +308,7 @@ int ttm_tt_swapin(struct ttm_tt *ttm) if (unlikely(to_page == NULL)) goto out_err; - preempt_disable(); copy_highpage(to_page, from_page); - preempt_enable(); page_cache_release(from_page); } @@ -358,9 +356,7 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistent_swap_storage) ret = PTR_ERR(to_page); goto out_err; } - preempt_disable(); copy_highpage(to_page, from_page); - preempt_enable(); set_page_dirty(to_page); mark_page_accessed(to_page); page_cache_release(to_page); -- cgit v0.10.2 From c3c9b370ea4fa2566dfb0c3d88d9f02be0533e7a Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 16 Nov 2012 09:26:41 +0900 Subject: ASoC: bells: Fix up git patch application failure It seems git has been getting confused by the very similar contexts for the speaker DAIs and has been applying patches to the wrong places causing all sorts of confusion. Fix this up by hand. Reported-by: Charles Keepax Signed-off-by: Mark Brown diff --git a/sound/soc/samsung/bells.c b/sound/soc/samsung/bells.c index b56b9a3..a2ca156 100644 --- a/sound/soc/samsung/bells.c +++ b/sound/soc/samsung/bells.c @@ -212,7 +212,7 @@ static struct snd_soc_dai_link bells_dai_wm5102[] = { { .name = "Sub", .stream_name = "Sub", - .cpu_dai_name = "wm5110-aif3", + .cpu_dai_name = "wm5102-aif3", .codec_dai_name = "wm9081-hifi", .codec_name = "wm9081.1-006c", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF @@ -247,7 +247,7 @@ static struct snd_soc_dai_link bells_dai_wm5110[] = { { .name = "Sub", .stream_name = "Sub", - .cpu_dai_name = "wm5102-aif3", + .cpu_dai_name = "wm5110-aif3", .codec_dai_name = "wm9081-hifi", .codec_name = "wm9081.1-006c", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF -- cgit v0.10.2 From 96e1f18fbb8c146aee9cdad1ebc510b8ccf94b6f Mon Sep 17 00:00:00 2001 From: Dimitris Papastamos Date: Thu, 15 Nov 2012 11:41:30 +0000 Subject: ASoC: arizona: Fix typo - Swap value in 48k_rates[] and 44k1_rates[] Signed-off-by: Dimitris Papastamos Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index c03b65a..054967d 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -268,7 +268,7 @@ EXPORT_SYMBOL_GPL(arizona_out_ev); static unsigned int arizona_sysclk_48k_rates[] = { 6144000, 12288000, - 22579200, + 24576000, 49152000, 73728000, 98304000, @@ -278,7 +278,7 @@ static unsigned int arizona_sysclk_48k_rates[] = { static unsigned int arizona_sysclk_44k1_rates[] = { 5644800, 11289600, - 24576000, + 22579200, 45158400, 67737600, 90316800, -- cgit v0.10.2 From 60817a680b1bd3341b6909fab7d8a1fcc3a78369 Mon Sep 17 00:00:00 2001 From: Aaron Lu Date: Tue, 9 Oct 2012 15:37:48 +0800 Subject: libata-acpi: Fix NULL ptr derference in ata_acpi_dev_handle commit 6b66d95895c149cbc04d4fac5a2f5477c543a8ae didn't handle SATA PMP case in ata_acpi_bind_device and will cause a NULL ptr dereference when user attached a SATA drive to the PMP port. Fix this by checking PMP support. This bug is reported by Dan van der Ster in the following bugzilla page: https://bugzilla.kernel.org/show_bug.cgi?id=48211 Reported-by: Dan van der Ster Tested-by: Dan van der Ster Signed-off-by: Aaron Lu Cc: Signed-off-by: Jeff Garzik Tested-by: Simon diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index fd9ecf7..5b0ba3f 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -1105,10 +1105,15 @@ static int ata_acpi_bind_device(struct ata_port *ap, struct scsi_device *sdev, struct acpi_device *acpi_dev; struct acpi_device_power_state *states; - if (ap->flags & ATA_FLAG_ACPI_SATA) - ata_dev = &ap->link.device[sdev->channel]; - else + if (ap->flags & ATA_FLAG_ACPI_SATA) { + if (!sata_pmp_attached(ap)) + ata_dev = &ap->link.device[sdev->id]; + else + ata_dev = &ap->pmp_link[sdev->channel].device[sdev->id]; + } + else { ata_dev = &ap->link.device[sdev->id]; + } *handle = ata_dev_acpi_handle(ata_dev); -- cgit v0.10.2 From 9addf6afeef0f2c9a1fef880e2dbe633d15a89bd Mon Sep 17 00:00:00 2001 From: Vipul Kumar Samar Date: Thu, 8 Nov 2012 20:39:54 +0530 Subject: pata_arasan: Initialize cf clock to 166MHz PATA arasan driver expects the clock to be set to 166 MHz for proper functioning. This patch sets clk to 166 MHz in probe. Signed-off-by: Vipul Kumar Samar Signed-off-by: Viresh Kumar Signed-off-by: Jeff Garzik diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c index 26201eb..71111f2 100644 --- a/drivers/ata/pata_arasan_cf.c +++ b/drivers/ata/pata_arasan_cf.c @@ -317,6 +317,12 @@ static int cf_init(struct arasan_cf_dev *acdev) return ret; } + ret = clk_set_rate(acdev->clk, 166000000); + if (ret) { + dev_warn(acdev->host->dev, "clock set rate failed"); + return ret; + } + spin_lock_irqsave(&acdev->host->lock, flags); /* configure CF interface clock */ writel((pdata->cf_if_clk <= CF_IF_CLK_200M) ? pdata->cf_if_clk : -- cgit v0.10.2 From c37472d3f4ec6bf98b443490e069f31d18bcd6f5 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 6 Nov 2012 22:55:32 +0100 Subject: sata_highbank: mark ahci_highbank_probe as __devinit The ahci_highbank_probe function is incorrectly marked as __init, which means it can get discarded at boot time, which might be a problem if for some reason the device only becomes operational after loading another module. Using __devinit instead avoids seeing this warning for every build: WARNING: vmlinux.o(.data+0xf7b0): Section mismatch in reference from the variable ahci_highbank_driver to the function .init.text:ahci_highbank_probe() The variable ahci_highbank_driver references the function __init ahci_highbank_probe() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console Signed-off-by: Arnd Bergmann Cc: Mark Langsdorf Cc: Rob Herring Signed-off-by: Jeff Garzik diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c index 0d7c4c2..36a141a 100644 --- a/drivers/ata/sata_highbank.c +++ b/drivers/ata/sata_highbank.c @@ -260,7 +260,7 @@ static const struct of_device_id ahci_of_match[] = { }; MODULE_DEVICE_TABLE(of, ahci_of_match); -static int __init ahci_highbank_probe(struct platform_device *pdev) +static int __devinit ahci_highbank_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct ahci_host_priv *hpriv; -- cgit v0.10.2 From cd705d5ad49bb8894dda2726dcaef8f63ddeba43 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Sun, 21 Oct 2012 18:57:56 +0200 Subject: libata debugging: Warn when unable to find timing descriptor based on xfer_mode ata_timing_find_mode could return NULL which is not checked by all low-level ATA drivers using it and cause a NULL ptr deref. Warn at least so that possible issues can get fixed easily. Signed-off-by: Borislav Petkov Signed-off-by: Jeff Garzik diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 3cc7096..f46fbd3 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -2942,6 +2942,10 @@ const struct ata_timing *ata_timing_find_mode(u8 xfer_mode) if (xfer_mode == t->mode) return t; + + WARN_ONCE(true, "%s: unable to find timing for xfer_mode 0x%x\n", + __func__, xfer_mode); + return NULL; } -- cgit v0.10.2 From b03e66a6be91f8389fcd902ab6c1563db1c9c06b Mon Sep 17 00:00:00 2001 From: David Milburn Date: Mon, 29 Oct 2012 18:00:22 -0500 Subject: sata_svw: check DMA start bit before reset If kdump is triggered with pending IO, controller may not respond causing kdump to fail. http://marc.info/?l=linux-ide&m=133032255424658&w=2 During error recovery ata_do_dev_read_id never completes due hang in mmio_insw. ata_do_dev_read_id ata_sff_data_xfer ioread16_rep mmio_insw if DMA start bit is cleared before reset, PIO command is successful and kdump succeeds. Signed-off-by: David Milburn Signed-off-by: Jeff Garzik diff --git a/drivers/ata/sata_svw.c b/drivers/ata/sata_svw.c index 44a4256..08608de 100644 --- a/drivers/ata/sata_svw.c +++ b/drivers/ata/sata_svw.c @@ -142,6 +142,39 @@ static int k2_sata_scr_write(struct ata_link *link, return 0; } +static int k2_sata_softreset(struct ata_link *link, + unsigned int *class, unsigned long deadline) +{ + u8 dmactl; + void __iomem *mmio = link->ap->ioaddr.bmdma_addr; + + dmactl = readb(mmio + ATA_DMA_CMD); + + /* Clear the start bit */ + if (dmactl & ATA_DMA_START) { + dmactl &= ~ATA_DMA_START; + writeb(dmactl, mmio + ATA_DMA_CMD); + } + + return ata_sff_softreset(link, class, deadline); +} + +static int k2_sata_hardreset(struct ata_link *link, + unsigned int *class, unsigned long deadline) +{ + u8 dmactl; + void __iomem *mmio = link->ap->ioaddr.bmdma_addr; + + dmactl = readb(mmio + ATA_DMA_CMD); + + /* Clear the start bit */ + if (dmactl & ATA_DMA_START) { + dmactl &= ~ATA_DMA_START; + writeb(dmactl, mmio + ATA_DMA_CMD); + } + + return sata_sff_hardreset(link, class, deadline); +} static void k2_sata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) { @@ -346,6 +379,8 @@ static struct scsi_host_template k2_sata_sht = { static struct ata_port_operations k2_sata_ops = { .inherits = &ata_bmdma_port_ops, + .softreset = k2_sata_softreset, + .hardreset = k2_sata_hardreset, .sff_tf_load = k2_sata_tf_load, .sff_tf_read = k2_sata_tf_read, .sff_check_status = k2_stat_check_status, -- cgit v0.10.2 From 29448ec129c5c9c7ece2ef28c72a0dafd70c8af2 Mon Sep 17 00:00:00 2001 From: Yuanhan Liu Date: Tue, 16 Oct 2012 22:59:01 +0800 Subject: [libata] PM callbacks should be conditionally compiled on CONFIG_PM_SLEEP This will fix warnings like following when CONFIG_PM_SLEEP is not set: warning: 'xxx_suspend' defined but not used [-Wunused-function] warning: 'xxx_resume' defined but not used [-Wunused-function] Because SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) Only references the callbacks on CONFIG_PM_SLEEP (instead of CONFIG_PM). Cc: Viresh Kumar Cc: linux-ide@vger.kernel.org Signed-off-by: Yuanhan Liu Signed-off-by: Fengguang Wu Signed-off-by: Jeff Garzik diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c index b1ae480..b7078af 100644 --- a/drivers/ata/ahci_platform.c +++ b/drivers/ata/ahci_platform.c @@ -238,7 +238,7 @@ static int __devexit ahci_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int ahci_suspend(struct device *dev) { struct ahci_platform_data *pdata = dev_get_platdata(dev); diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c index 71111f2..371fd2c 100644 --- a/drivers/ata/pata_arasan_cf.c +++ b/drivers/ata/pata_arasan_cf.c @@ -914,7 +914,7 @@ static int __devexit arasan_cf_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int arasan_cf_suspend(struct device *dev) { struct ata_host *host = dev_get_drvdata(dev); diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c index 36a141a..400bf1c 100644 --- a/drivers/ata/sata_highbank.c +++ b/drivers/ata/sata_highbank.c @@ -378,7 +378,7 @@ static int __devexit ahci_highbank_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int ahci_highbank_suspend(struct device *dev) { struct ata_host *host = dev_get_drvdata(dev); -- cgit v0.10.2 From 6fc4adca6ce3e1d57a42707019dddcb883578a91 Mon Sep 17 00:00:00 2001 From: Simon Marchi Date: Thu, 15 Nov 2012 18:13:19 +0000 Subject: tilegx: request_irq with a non-null device name This patch simply makes the tilegx net driver call request_irq with a non-null name. It makes the output in /proc/interrupts more obvious, but also helps tools that don't expect to find null there. Signed-off-by: Simon Marchi Acked-by: Chris Metcalf Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/tile/tilegx.c b/drivers/net/ethernet/tile/tilegx.c index 4e98100..66e025a 100644 --- a/drivers/net/ethernet/tile/tilegx.c +++ b/drivers/net/ethernet/tile/tilegx.c @@ -917,7 +917,7 @@ static int tile_net_setup_interrupts(struct net_device *dev) ingress_irq = rc; tile_irq_activate(ingress_irq, TILE_IRQ_PERCPU); rc = request_irq(ingress_irq, tile_net_handle_ingress_irq, - 0, NULL, NULL); + 0, "tile_net", NULL); if (rc != 0) { netdev_err(dev, "request_irq failed: %d\n", rc); destroy_irq(ingress_irq); -- cgit v0.10.2 From e9c00136a4754829faf885cf966c9754c7734660 Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Wed, 7 Nov 2012 15:05:33 +0100 Subject: batman-adv: fix tt_global_entries flags update Flags carried by a change_entry have to be always copied into the client entry as they may contain important attributes (e.g. TT_CLIENT_WIFI). For instance, a client added by means of the "early detection mechanism" has no flag set at the beginning, so they must be updated once the proper ADD event is received. This was introduced by 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59 ("batman-adv: detect not yet announced clients") Signed-off-by: Antonio Quartulli Signed-off-by: Marek Lindner diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index 112edd3..64c0012 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -769,6 +769,12 @@ int batadv_tt_global_add(struct batadv_priv *bat_priv, */ tt_global_entry->common.flags &= ~BATADV_TT_CLIENT_TEMP; + /* the change can carry possible "attribute" flags like the + * TT_CLIENT_WIFI, therefore they have to be copied in the + * client entry + */ + tt_global_entry->common.flags |= flags; + /* If there is the BATADV_TT_CLIENT_ROAM flag set, there is only * one originator left in the list and we previously received a * delete + roaming change for this originator. -- cgit v0.10.2 From 27b37ebfa2d2a1b6acef6f2d21c497475c9b9709 Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Thu, 8 Nov 2012 14:21:11 +0100 Subject: batman-adv: correctly pass the client flag on tt_response When a TT response with the full table is sent, the client flags should be sent as well. This patch fix the flags assignment when populating the tt_response to send back This was introduced by 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59 ("batman-adv: detect not yet announced clients") Signed-off-by: Antonio Quartulli Signed-off-by: Marek Lindner diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index 64c0012..fec1a00 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -1502,7 +1502,7 @@ batadv_tt_response_fill_table(uint16_t tt_len, uint8_t ttvn, memcpy(tt_change->addr, tt_common_entry->addr, ETH_ALEN); - tt_change->flags = BATADV_NO_FLAGS; + tt_change->flags = tt_common_entry->flags; tt_count++; tt_change++; -- cgit v0.10.2 From 1f36aebcc5fa53c5d98f3329186466b5eb76a168 Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Thu, 8 Nov 2012 21:55:29 +0100 Subject: batman-adv: don't add TEMP clients belonging to other backbone nodes The "early client detection" mechanism must not add clients belonging to other backbone nodes. Such clients must be reached by directly using the LAN instead of the mesh. This was introduced by 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59 ("batman-adv: detect not yet announced clients") Reported-by: Glen Page Signed-off-by: Antonio Quartulli Signed-off-by: Marek Lindner diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index fec1a00..baae715 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -2456,6 +2456,13 @@ bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv, { bool ret = false; + /* if the originator is a backbone node (meaning it belongs to the same + * LAN of this node) the temporary client must not be added because to + * reach such destination the node must use the LAN instead of the mesh + */ + if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig)) + goto out; + if (!batadv_tt_global_add(bat_priv, orig_node, addr, BATADV_TT_CLIENT_TEMP, atomic_read(&orig_node->last_ttvn))) -- cgit v0.10.2 From 74490f969155caf1ec945ad2d35d3a8eec6be71d Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Thu, 8 Nov 2012 21:55:30 +0100 Subject: batman-adv: process broadcast packets in BLA earlier The logic in the BLA mechanism may decide to drop broadcast packets because the node may still be in the setup phase. For this reason, further broadcast processing like the early client detection mechanism must be done only after the BLA check. This patches moves the invocation to BLA before any other broadcast processing. This was introduced 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59 ("batman-adv: detect not yet announced clients") Reported-by: Glen Page Signed-off-by: Simon Wunderlich Signed-off-by: Antonio Quartulli Signed-off-by: Marek Lindner diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index b9a28d2..ce0684a 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -325,6 +325,12 @@ void batadv_interface_rx(struct net_device *soft_iface, soft_iface->last_rx = jiffies; + /* Let the bridge loop avoidance check the packet. If will + * not handle it, we can safely push it up. + */ + if (batadv_bla_rx(bat_priv, skb, vid, is_bcast)) + goto out; + if (orig_node) batadv_tt_add_temporary_global_entry(bat_priv, orig_node, ethhdr->h_source); @@ -332,12 +338,6 @@ void batadv_interface_rx(struct net_device *soft_iface, if (batadv_is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest)) goto dropped; - /* Let the bridge loop avoidance check the packet. If will - * not handle it, we can safely push it up. - */ - if (batadv_bla_rx(bat_priv, skb, vid, is_bcast)) - goto out; - netif_rx(skb); goto out; -- cgit v0.10.2 From 097965ee447e5ccec9776f9b075e64cf7607e5eb Mon Sep 17 00:00:00 2001 From: Nicolas Royer Date: Tue, 6 Nov 2012 17:31:03 +0100 Subject: ARM: at91/AT91SAM9G45: fix crypto peripherals irq issue due to sparse irq support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Spare irq support introduced by commit 8fe82a5 (ARM: at91: sparse irq support) involves to add the NR_IRQS_LEGACY offset to irq number. Signed-off-by: Nicolas Royer Acked-by: Nicolas Ferre Acked-by: Eric Bénard Tested-by: Eric Bénard Cc: stable@vger.kernel.org # 3.6 diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c index b159607..fcd233c 100644 --- a/arch/arm/mach-at91/at91sam9g45_devices.c +++ b/arch/arm/mach-at91/at91sam9g45_devices.c @@ -1841,8 +1841,8 @@ static struct resource sha_resources[] = { .flags = IORESOURCE_MEM, }, [1] = { - .start = AT91SAM9G45_ID_AESTDESSHA, - .end = AT91SAM9G45_ID_AESTDESSHA, + .start = NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA, + .end = NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA, .flags = IORESOURCE_IRQ, }, }; @@ -1874,8 +1874,8 @@ static struct resource tdes_resources[] = { .flags = IORESOURCE_MEM, }, [1] = { - .start = AT91SAM9G45_ID_AESTDESSHA, - .end = AT91SAM9G45_ID_AESTDESSHA, + .start = NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA, + .end = NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA, .flags = IORESOURCE_IRQ, }, }; @@ -1910,8 +1910,8 @@ static struct resource aes_resources[] = { .flags = IORESOURCE_MEM, }, [1] = { - .start = AT91SAM9G45_ID_AESTDESSHA, - .end = AT91SAM9G45_ID_AESTDESSHA, + .start = NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA, + .end = NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA, .flags = IORESOURCE_IRQ, }, }; -- cgit v0.10.2 From 641f3ce64b050961d454a0716bb6dbf528315aac Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Wed, 14 Nov 2012 12:18:17 +0100 Subject: ARM: at91/usbh: fix overcurrent gpio setup Use gpio_is_valid also for overcurrent pins (which are currently negative in many board files). Signed-off-by: Johan Hovold Acked-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Nicolas Ferre diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c index 1e122bc..3cee0e6 100644 --- a/arch/arm/mach-at91/at91rm9200_devices.c +++ b/arch/arm/mach-at91/at91rm9200_devices.c @@ -68,7 +68,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data) /* Enable overcurrent notification */ for (i = 0; i < data->ports; i++) { - if (data->overcurrent_pin[i]) + if (gpio_is_valid(data->overcurrent_pin[i])) at91_set_gpio_input(data->overcurrent_pin[i], 1); } diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c index aa1e587..414bd85 100644 --- a/arch/arm/mach-at91/at91sam9260_devices.c +++ b/arch/arm/mach-at91/at91sam9260_devices.c @@ -72,7 +72,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data) /* Enable overcurrent notification */ for (i = 0; i < data->ports; i++) { - if (data->overcurrent_pin[i]) + if (gpio_is_valid(data->overcurrent_pin[i])) at91_set_gpio_input(data->overcurrent_pin[i], 1); } diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c index b948769..cd604aa 100644 --- a/arch/arm/mach-at91/at91sam9261_devices.c +++ b/arch/arm/mach-at91/at91sam9261_devices.c @@ -72,7 +72,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data) /* Enable overcurrent notification */ for (i = 0; i < data->ports; i++) { - if (data->overcurrent_pin[i]) + if (gpio_is_valid(data->overcurrent_pin[i])) at91_set_gpio_input(data->overcurrent_pin[i], 1); } diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c index cb85da2..9c61e59 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c @@ -78,7 +78,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data) /* Enable overcurrent notification */ for (i = 0; i < data->ports; i++) { - if (data->overcurrent_pin[i]) + if (gpio_is_valid(data->overcurrent_pin[i])) at91_set_gpio_input(data->overcurrent_pin[i], 1); } -- cgit v0.10.2 From ecf026dc340f9700ed3c485344913a8a2b10e2e3 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Thu, 25 Oct 2012 23:02:18 +0800 Subject: ARM i.MX: fix error-valued pointer dereference in clk_register_gate2() The error-valued pointer clk is used for the arg of kfree, it should be kfree(gate) if clk_register() return ERR_PTR(). dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/clk-gate2.c b/arch/arm/mach-imx/clk-gate2.c index 3c1b8ff..cc49c7a 100644 --- a/arch/arm/mach-imx/clk-gate2.c +++ b/arch/arm/mach-imx/clk-gate2.c @@ -112,7 +112,7 @@ struct clk *clk_register_gate2(struct device *dev, const char *name, clk = clk_register(dev, &gate->hw); if (IS_ERR(clk)) - kfree(clk); + kfree(gate); return clk; } -- cgit v0.10.2 From 3d5e2abe6e265acc5e1fda810301243e9bac92b2 Mon Sep 17 00:00:00 2001 From: Christoph Fritz Date: Fri, 16 Nov 2012 15:39:24 +0100 Subject: ARM: imx: ehci: fix host power mask bit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch sets HPM (Host power mask bit) to bit 16 according to i.MX Reference Manual. Falsely it was set to bit 8, but this controls pull-up Impedance. Reported-by: Michael Burkey Cc: Stable Signed-off-by: Christoph Fritz Acked-by: Eric Bénard Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/ehci-imx25.c b/arch/arm/mach-imx/ehci-imx25.c index 412c583..576af74 100644 --- a/arch/arm/mach-imx/ehci-imx25.c +++ b/arch/arm/mach-imx/ehci-imx25.c @@ -30,7 +30,7 @@ #define MX25_H1_SIC_SHIFT 21 #define MX25_H1_SIC_MASK (0x3 << MX25_H1_SIC_SHIFT) #define MX25_H1_PP_BIT (1 << 18) -#define MX25_H1_PM_BIT (1 << 8) +#define MX25_H1_PM_BIT (1 << 16) #define MX25_H1_IPPUE_UP_BIT (1 << 7) #define MX25_H1_IPPUE_DOWN_BIT (1 << 6) #define MX25_H1_TLL_BIT (1 << 5) diff --git a/arch/arm/mach-imx/ehci-imx35.c b/arch/arm/mach-imx/ehci-imx35.c index 779e16e..2933978 100644 --- a/arch/arm/mach-imx/ehci-imx35.c +++ b/arch/arm/mach-imx/ehci-imx35.c @@ -30,7 +30,7 @@ #define MX35_H1_SIC_SHIFT 21 #define MX35_H1_SIC_MASK (0x3 << MX35_H1_SIC_SHIFT) #define MX35_H1_PP_BIT (1 << 18) -#define MX35_H1_PM_BIT (1 << 8) +#define MX35_H1_PM_BIT (1 << 16) #define MX35_H1_IPPUE_UP_BIT (1 << 7) #define MX35_H1_IPPUE_DOWN_BIT (1 << 6) #define MX35_H1_TLL_BIT (1 << 5) -- cgit v0.10.2 From 8e620b0476696e9428442d3551f3dad47df0e28f Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Thu, 15 Nov 2012 17:21:16 +0000 Subject: arm64: Distinguish between user and kernel XN bits On AArch64, the meaning of the XN bit has changed to UXN (user). The PXN (privileged) bit must be set to prevent kernel execution. Without the PXN bit set, the CPU may speculatively access device memory. This patch ensures that all the mappings that the kernel must not execute from (including user mappings) have the PXN bit set. Signed-off-by: Catalin Marinas diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index 54f6116..d2f05a6 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -222,7 +222,7 @@ extern void __iomem *__ioremap(phys_addr_t phys_addr, size_t size, pgprot_t prot extern void __iounmap(volatile void __iomem *addr); #define PROT_DEFAULT (PTE_TYPE_PAGE | PTE_AF | PTE_DIRTY) -#define PROT_DEVICE_nGnRE (PROT_DEFAULT | PTE_XN | PTE_ATTRINDX(MT_DEVICE_nGnRE)) +#define PROT_DEVICE_nGnRE (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_ATTRINDX(MT_DEVICE_nGnRE)) #define PROT_NORMAL_NC (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL_NC)) #define ioremap(addr, size) __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE)) diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h index 0f3b458..75fd13d 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -38,7 +38,8 @@ #define PMD_SECT_S (_AT(pmdval_t, 3) << 8) #define PMD_SECT_AF (_AT(pmdval_t, 1) << 10) #define PMD_SECT_NG (_AT(pmdval_t, 1) << 11) -#define PMD_SECT_XN (_AT(pmdval_t, 1) << 54) +#define PMD_SECT_PXN (_AT(pmdval_t, 1) << 53) +#define PMD_SECT_UXN (_AT(pmdval_t, 1) << 54) /* * AttrIndx[2:0] encoding (mapping attributes defined in the MAIR* registers). @@ -57,7 +58,8 @@ #define PTE_SHARED (_AT(pteval_t, 3) << 8) /* SH[1:0], inner shareable */ #define PTE_AF (_AT(pteval_t, 1) << 10) /* Access Flag */ #define PTE_NG (_AT(pteval_t, 1) << 11) /* nG */ -#define PTE_XN (_AT(pteval_t, 1) << 54) /* XN */ +#define PTE_PXN (_AT(pteval_t, 1) << 53) /* Privileged XN */ +#define PTE_UXN (_AT(pteval_t, 1) << 54) /* User XN */ /* * AttrIndx[2:0] encoding (mapping attributes defined in the MAIR* registers). diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 8960239..14aba2d 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -62,23 +62,23 @@ extern pgprot_t pgprot_default; #define _MOD_PROT(p, b) __pgprot(pgprot_val(p) | (b)) -#define PAGE_NONE _MOD_PROT(pgprot_default, PTE_NG | PTE_XN | PTE_RDONLY) -#define PAGE_SHARED _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_XN) -#define PAGE_SHARED_EXEC _MOD_PROT(pgprot_default, PTE_USER | PTE_NG) -#define PAGE_COPY _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_XN | PTE_RDONLY) -#define PAGE_COPY_EXEC _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_RDONLY) -#define PAGE_READONLY _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_XN | PTE_RDONLY) -#define PAGE_READONLY_EXEC _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_RDONLY) -#define PAGE_KERNEL _MOD_PROT(pgprot_default, PTE_XN | PTE_DIRTY) -#define PAGE_KERNEL_EXEC _MOD_PROT(pgprot_default, PTE_DIRTY) - -#define __PAGE_NONE __pgprot(_PAGE_DEFAULT | PTE_NG | PTE_XN | PTE_RDONLY) -#define __PAGE_SHARED __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_XN) -#define __PAGE_SHARED_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG) -#define __PAGE_COPY __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_XN | PTE_RDONLY) -#define __PAGE_COPY_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_RDONLY) -#define __PAGE_READONLY __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_XN | PTE_RDONLY) -#define __PAGE_READONLY_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_RDONLY) +#define PAGE_NONE _MOD_PROT(pgprot_default, PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY) +#define PAGE_SHARED _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_UXN) +#define PAGE_SHARED_EXEC _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN) +#define PAGE_COPY _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY) +#define PAGE_COPY_EXEC _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_RDONLY) +#define PAGE_READONLY _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY) +#define PAGE_READONLY_EXEC _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_RDONLY) +#define PAGE_KERNEL _MOD_PROT(pgprot_default, PTE_PXN | PTE_UXN | PTE_DIRTY) +#define PAGE_KERNEL_EXEC _MOD_PROT(pgprot_default, PTE_UXN | PTE_DIRTY) + +#define __PAGE_NONE __pgprot(_PAGE_DEFAULT | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY) +#define __PAGE_SHARED __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN) +#define __PAGE_SHARED_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN) +#define __PAGE_COPY __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY) +#define __PAGE_COPY_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_RDONLY) +#define __PAGE_READONLY __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY) +#define __PAGE_READONLY_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_RDONLY) #endif /* __ASSEMBLY__ */ @@ -130,10 +130,10 @@ extern struct page *empty_zero_page; #define pte_young(pte) (pte_val(pte) & PTE_AF) #define pte_special(pte) (pte_val(pte) & PTE_SPECIAL) #define pte_write(pte) (!(pte_val(pte) & PTE_RDONLY)) -#define pte_exec(pte) (!(pte_val(pte) & PTE_XN)) +#define pte_exec(pte) (!(pte_val(pte) & PTE_UXN)) #define pte_present_exec_user(pte) \ - ((pte_val(pte) & (PTE_VALID | PTE_USER | PTE_XN)) == \ + ((pte_val(pte) & (PTE_VALID | PTE_USER | PTE_UXN)) == \ (PTE_VALID | PTE_USER)) #define PTE_BIT_FUNC(fn,op) \ @@ -262,7 +262,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr) static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { - const pteval_t mask = PTE_USER | PTE_XN | PTE_RDONLY; + const pteval_t mask = PTE_USER | PTE_PXN | PTE_UXN | PTE_RDONLY; pte_val(pte) = (pte_val(pte) & ~mask) | (pgprot_val(newprot) & mask); return pte; } -- cgit v0.10.2 From fa0cbbf145aabbf29c6f28f8a11935c0b0fd86fc Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Mon, 12 Nov 2012 17:53:04 -0800 Subject: mm, oom: reintroduce /proc/pid/oom_adj This is mostly a revert of 01dc52ebdf47 ("oom: remove deprecated oom_adj") from Davidlohr Bueso. It reintroduces /proc/pid/oom_adj for backwards compatibility with earlier kernels. It simply scales the value linearly when /proc/pid/oom_score_adj is written. The major difference is that its scheduled removal is no longer included in Documentation/feature-removal-schedule.txt. We do warn users with a single printk, though, to suggest the more powerful and supported /proc/pid/oom_score_adj interface. Reported-by: Artem S. Tashkinov Signed-off-by: David Rientjes Signed-off-by: Linus Torvalds diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index a1793d6..3844d21 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -33,7 +33,7 @@ Table of Contents 2 Modifying System Parameters 3 Per-Process Parameters - 3.1 /proc//oom_score_adj - Adjust the oom-killer + 3.1 /proc//oom_adj & /proc//oom_score_adj - Adjust the oom-killer score 3.2 /proc//oom_score - Display current oom-killer score 3.3 /proc//io - Display the IO accounting fields @@ -1320,10 +1320,10 @@ of the kernel. CHAPTER 3: PER-PROCESS PARAMETERS ------------------------------------------------------------------------------ -3.1 /proc//oom_score_adj- Adjust the oom-killer score +3.1 /proc//oom_adj & /proc//oom_score_adj- Adjust the oom-killer score -------------------------------------------------------------------------------- -This file can be used to adjust the badness heuristic used to select which +These file can be used to adjust the badness heuristic used to select which process gets killed in out of memory conditions. The badness heuristic assigns a value to each candidate task ranging from 0 @@ -1361,6 +1361,12 @@ same system, cpuset, mempolicy, or memory controller resources to use at least equivalent to discounting 50% of the task's allowed memory from being considered as scoring against the task. +For backwards compatibility with previous kernels, /proc//oom_adj may also +be used to tune the badness score. Its acceptable values range from -16 +(OOM_ADJUST_MIN) to +15 (OOM_ADJUST_MAX) and a special value of -17 +(OOM_DISABLE) to disable oom killing entirely for that task. Its value is +scaled linearly with /proc//oom_score_adj. + The value of /proc//oom_score_adj may be reduced no lower than the last value set by a CAP_SYS_RESOURCE process. To reduce the value any lower requires CAP_SYS_RESOURCE. @@ -1375,7 +1381,9 @@ minimal amount of work. ------------------------------------------------------------- This file can be used to check the current score used by the oom-killer is for -any given . +any given . Use it together with /proc//oom_score_adj to tune which +process should be killed in an out-of-memory situation. + 3.3 /proc//io - Display the IO accounting fields ------------------------------------------------------- diff --git a/fs/proc/base.c b/fs/proc/base.c index 144a967..3c231ad 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -873,6 +873,113 @@ static const struct file_operations proc_environ_operations = { .release = mem_release, }; +static ssize_t oom_adj_read(struct file *file, char __user *buf, size_t count, + loff_t *ppos) +{ + struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode); + char buffer[PROC_NUMBUF]; + int oom_adj = OOM_ADJUST_MIN; + size_t len; + unsigned long flags; + + if (!task) + return -ESRCH; + if (lock_task_sighand(task, &flags)) { + if (task->signal->oom_score_adj == OOM_SCORE_ADJ_MAX) + oom_adj = OOM_ADJUST_MAX; + else + oom_adj = (task->signal->oom_score_adj * -OOM_DISABLE) / + OOM_SCORE_ADJ_MAX; + unlock_task_sighand(task, &flags); + } + put_task_struct(task); + len = snprintf(buffer, sizeof(buffer), "%d\n", oom_adj); + return simple_read_from_buffer(buf, count, ppos, buffer, len); +} + +static ssize_t oom_adj_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct task_struct *task; + char buffer[PROC_NUMBUF]; + int oom_adj; + unsigned long flags; + int err; + + memset(buffer, 0, sizeof(buffer)); + if (count > sizeof(buffer) - 1) + count = sizeof(buffer) - 1; + if (copy_from_user(buffer, buf, count)) { + err = -EFAULT; + goto out; + } + + err = kstrtoint(strstrip(buffer), 0, &oom_adj); + if (err) + goto out; + if ((oom_adj < OOM_ADJUST_MIN || oom_adj > OOM_ADJUST_MAX) && + oom_adj != OOM_DISABLE) { + err = -EINVAL; + goto out; + } + + task = get_proc_task(file->f_path.dentry->d_inode); + if (!task) { + err = -ESRCH; + goto out; + } + + task_lock(task); + if (!task->mm) { + err = -EINVAL; + goto err_task_lock; + } + + if (!lock_task_sighand(task, &flags)) { + err = -ESRCH; + goto err_task_lock; + } + + /* + * Scale /proc/pid/oom_score_adj appropriately ensuring that a maximum + * value is always attainable. + */ + if (oom_adj == OOM_ADJUST_MAX) + oom_adj = OOM_SCORE_ADJ_MAX; + else + oom_adj = (oom_adj * OOM_SCORE_ADJ_MAX) / -OOM_DISABLE; + + if (oom_adj < task->signal->oom_score_adj && + !capable(CAP_SYS_RESOURCE)) { + err = -EACCES; + goto err_sighand; + } + + /* + * /proc/pid/oom_adj is provided for legacy purposes, ask users to use + * /proc/pid/oom_score_adj instead. + */ + printk_once(KERN_WARNING "%s (%d): /proc/%d/oom_adj is deprecated, please use /proc/%d/oom_score_adj instead.\n", + current->comm, task_pid_nr(current), task_pid_nr(task), + task_pid_nr(task)); + + task->signal->oom_score_adj = oom_adj; + trace_oom_score_adj_update(task); +err_sighand: + unlock_task_sighand(task, &flags); +err_task_lock: + task_unlock(task); + put_task_struct(task); +out: + return err < 0 ? err : count; +} + +static const struct file_operations proc_oom_adj_operations = { + .read = oom_adj_read, + .write = oom_adj_write, + .llseek = generic_file_llseek, +}; + static ssize_t oom_score_adj_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { @@ -2598,6 +2705,7 @@ static const struct pid_entry tgid_base_stuff[] = { REG("cgroup", S_IRUGO, proc_cgroup_operations), #endif INF("oom_score", S_IRUGO, proc_oom_score), + REG("oom_adj", S_IRUGO|S_IWUSR, proc_oom_adj_operations), REG("oom_score_adj", S_IRUGO|S_IWUSR, proc_oom_score_adj_operations), #ifdef CONFIG_AUDITSYSCALL REG("loginuid", S_IWUSR|S_IRUGO, proc_loginuid_operations), @@ -2964,6 +3072,7 @@ static const struct pid_entry tid_base_stuff[] = { REG("cgroup", S_IRUGO, proc_cgroup_operations), #endif INF("oom_score", S_IRUGO, proc_oom_score), + REG("oom_adj", S_IRUGO|S_IWUSR, proc_oom_adj_operations), REG("oom_score_adj", S_IRUGO|S_IWUSR, proc_oom_score_adj_operations), #ifdef CONFIG_AUDITSYSCALL REG("loginuid", S_IWUSR|S_IRUGO, proc_loginuid_operations), diff --git a/include/uapi/linux/oom.h b/include/uapi/linux/oom.h index a49c4af..b29272d 100644 --- a/include/uapi/linux/oom.h +++ b/include/uapi/linux/oom.h @@ -8,4 +8,13 @@ #define OOM_SCORE_ADJ_MIN (-1000) #define OOM_SCORE_ADJ_MAX 1000 +/* + * /proc//oom_adj set to -17 protects from the oom killer for legacy + * purposes. + */ +#define OOM_DISABLE (-17) +/* inclusive */ +#define OOM_ADJUST_MIN (-16) +#define OOM_ADJUST_MAX 15 + #endif /* _UAPI__INCLUDE_LINUX_OOM_H */ -- cgit v0.10.2 From d3fb695576fc7f9d045da9e1ef001d94b0eea3cb Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Thu, 15 Nov 2012 08:58:27 +0800 Subject: Thermal: Add Linux/Thermal subsystem info in MAINTAINER file All the changes made to the generic thermal layer, or platform thermal drivers that make use of the thermal layer, should be sent to linux-pm@vger.kernel.org for discussion. And as the maintainer, I will only apply the patches that have been sent to linux-pm@vger.kernel.org. Signed-off-by: Zhang Rui Signed-off-by: Linus Torvalds diff --git a/MAINTAINERS b/MAINTAINERS index ff8e763..bb0b27d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7259,6 +7259,14 @@ L: linux-xtensa@linux-xtensa.org S: Maintained F: arch/xtensa/ +THERMAL +M: Zhang Rui +L: linux-pm@vger.kernel.org +T: git git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux.git +S: Supported +F: drivers/thermal/ +F: include/linux/thermal.h + THINKPAD ACPI EXTRAS DRIVER M: Henrique de Moraes Holschuh L: ibm-acpi-devel@lists.sourceforge.net -- cgit v0.10.2 From 976a702ac9eeacea09e588456ab165dc06f9ee83 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 16 Nov 2012 05:31:53 +0000 Subject: tcp: handle tcp_net_metrics_init() order-5 memory allocation failures order-5 allocations can fail with current kernels, we should try vmalloc() as well. Reported-by: Julien Tinnes Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c index 53bc584..f696d7c 100644 --- a/net/ipv4/tcp_metrics.c +++ b/net/ipv4/tcp_metrics.c @@ -1,7 +1,6 @@ #include #include #include -#include #include #include #include @@ -9,6 +8,7 @@ #include #include #include +#include #include #include @@ -1034,7 +1034,10 @@ static int __net_init tcp_net_metrics_init(struct net *net) net->ipv4.tcp_metrics_hash_log = order_base_2(slots); size = sizeof(struct tcpm_hash_bucket) << net->ipv4.tcp_metrics_hash_log; - net->ipv4.tcp_metrics_hash = kzalloc(size, GFP_KERNEL); + net->ipv4.tcp_metrics_hash = kzalloc(size, GFP_KERNEL | __GFP_NOWARN); + if (!net->ipv4.tcp_metrics_hash) + net->ipv4.tcp_metrics_hash = vzalloc(size); + if (!net->ipv4.tcp_metrics_hash) return -ENOMEM; @@ -1055,7 +1058,10 @@ static void __net_exit tcp_net_metrics_exit(struct net *net) tm = next; } } - kfree(net->ipv4.tcp_metrics_hash); + if (is_vmalloc_addr(net->ipv4.tcp_metrics_hash)) + vfree(net->ipv4.tcp_metrics_hash); + else + kfree(net->ipv4.tcp_metrics_hash); } static __net_initdata struct pernet_operations tcp_net_metrics_ops = { -- cgit v0.10.2 From baefa31db2f2b13a05d1b81bdf2d20d487f58b0a Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Fri, 16 Nov 2012 09:04:15 +0000 Subject: net-rps: Fix brokeness causing OOO packets In commit c445477d74ab3779 which adds aRFS to the kernel, the CPU selected for RFS is not set correctly when CPU is changing. This is causing OOO packets and probably other issues. Signed-off-by: Tom Herbert Acked-by: Eric Dumazet Acked-by: Ben Hutchings Signed-off-by: David S. Miller diff --git a/net/core/dev.c b/net/core/dev.c index bda6d00..c0946cb 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2818,8 +2818,10 @@ static int get_rps_cpu(struct net_device *dev, struct sk_buff *skb, if (unlikely(tcpu != next_cpu) && (tcpu == RPS_NO_CPU || !cpu_online(tcpu) || ((int)(per_cpu(softnet_data, tcpu).input_queue_head - - rflow->last_qtail)) >= 0)) + rflow->last_qtail)) >= 0)) { + tcpu = next_cpu; rflow = set_rps_cpu(dev, skb, rflow, next_cpu); + } if (tcpu != RPS_NO_CPU && cpu_online(tcpu)) { *rflowp = rflow; -- cgit v0.10.2 From a485e827f07bfdd0762059386e6e787bed6e81ee Mon Sep 17 00:00:00 2001 From: Albert Pool Date: Tue, 30 Oct 2012 20:58:06 +0100 Subject: rtlwifi: rtl8192cu: Add new USB ID This is an ISY IWL 2000. Probably a clone of Belkin F7D1102 050d:1102. Its FCC ID is the same. Signed-off-by: Albert Pool Cc: stable@vger.kernel.org Acked-by: Larry Finger Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c index 9970c2b..b7e6607 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c @@ -297,6 +297,7 @@ static struct usb_device_id rtl8192c_usb_ids[] = { /*=== Customer ID ===*/ /****** 8188CU ********/ {RTL_USB_DEVICE(0x050d, 0x1102, rtl92cu_hal_cfg)}, /*Belkin - Edimax*/ + {RTL_USB_DEVICE(0x050d, 0x11f2, rtl92cu_hal_cfg)}, /*Belkin - ISY*/ {RTL_USB_DEVICE(0x06f8, 0xe033, rtl92cu_hal_cfg)}, /*Hercules - Edimax*/ {RTL_USB_DEVICE(0x07b8, 0x8188, rtl92cu_hal_cfg)}, /*Abocom - Abocom*/ {RTL_USB_DEVICE(0x07b8, 0x8189, rtl92cu_hal_cfg)}, /*Funai - Abocom*/ -- cgit v0.10.2 From b1a47aa5e1e159e2cb06d7dfcc17ef5149b09299 Mon Sep 17 00:00:00 2001 From: Bing Zhao Date: Thu, 15 Nov 2012 15:58:47 -0800 Subject: mwifiex: fix system hang issue in cmd timeout error case Reported by Tim Shepard: I was seeing sporadic failures (wedgeups), and the majority of those failures I saw printed the printouts in mwifiex_cmd_timeout_func with cmd = 0xe5 which is CMD_802_11_HS_CFG_ENH. When this happens, two minutes later I get notified that the rtcwake thread is blocked, like this: INFO: task rtcwake:3495 blocked for more than 120 seconds. To get the hung thread unblocked we wake up the cmd wait queue and cancel the ioctl. Cc: "3.4+" Reported-by: Tim Shepard Signed-off-by: Bing Zhao Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c index 8d46510..ae9010e 100644 --- a/drivers/net/wireless/mwifiex/cmdevt.c +++ b/drivers/net/wireless/mwifiex/cmdevt.c @@ -890,9 +890,6 @@ mwifiex_cmd_timeout_func(unsigned long function_context) return; } cmd_node = adapter->curr_cmd; - if (cmd_node->wait_q_enabled) - adapter->cmd_wait_q.status = -ETIMEDOUT; - if (cmd_node) { adapter->dbg.timeout_cmd_id = adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index]; @@ -938,6 +935,14 @@ mwifiex_cmd_timeout_func(unsigned long function_context) dev_err(adapter->dev, "ps_mode=%d ps_state=%d\n", adapter->ps_mode, adapter->ps_state); + + if (cmd_node->wait_q_enabled) { + adapter->cmd_wait_q.status = -ETIMEDOUT; + wake_up_interruptible(&adapter->cmd_wait_q.wait); + mwifiex_cancel_pending_ioctl(adapter); + /* reset cmd_sent flag to unblock new commands */ + adapter->cmd_sent = false; + } } if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) mwifiex_init_fw_complete(adapter); -- cgit v0.10.2 From dd321acddc3be1371263b8c9e6c6f2af89f63d57 Mon Sep 17 00:00:00 2001 From: Bing Zhao Date: Thu, 15 Nov 2012 15:58:48 -0800 Subject: mwifiex: report error to MMC core if we cannot suspend When host_sleep_config command fails we should return error to MMC core to indicate the failure for our device. The misspelled variable is also removed as it's redundant. Cc: "3.0+" Signed-off-by: Bing Zhao Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c index fc8a9bf..82cf0fa 100644 --- a/drivers/net/wireless/mwifiex/sdio.c +++ b/drivers/net/wireless/mwifiex/sdio.c @@ -161,7 +161,6 @@ static int mwifiex_sdio_suspend(struct device *dev) struct sdio_mmc_card *card; struct mwifiex_adapter *adapter; mmc_pm_flag_t pm_flag = 0; - int hs_actived = 0; int i; int ret = 0; @@ -188,12 +187,14 @@ static int mwifiex_sdio_suspend(struct device *dev) adapter = card->adapter; /* Enable the Host Sleep */ - hs_actived = mwifiex_enable_hs(adapter); - if (hs_actived) { - pr_debug("cmd: suspend with MMC_PM_KEEP_POWER\n"); - ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); + if (!mwifiex_enable_hs(adapter)) { + dev_err(adapter->dev, "cmd: failed to suspend\n"); + return -EFAULT; } + dev_dbg(adapter->dev, "cmd: suspend with MMC_PM_KEEP_POWER\n"); + ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); + /* Indicate device suspended */ adapter->is_suspended = true; -- cgit v0.10.2 From 38c1a01cf10c6e4049b4ffbd4a6af655df2a46e1 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 16 Nov 2012 20:46:19 +0100 Subject: wireless: add back sysfs directory commit 35b2a113cb0298d4f9a1263338b456094a414057 broke (at least) Fedora's networking scripts, they check for the existence of the wireless directory. As the files aren't used, add the directory back and not the files. Also do it for both drivers based on the old wireless extensions and cfg80211, regardless of whether the compat code for wext is built into cfg80211 or not. Cc: stable@vger.kernel.org [3.6] Reported-by: Dave Airlie Reported-by: Bill Nottingham Signed-off-by: Johannes Berg diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index bcf02f6..017a8ba 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -429,6 +429,17 @@ static struct attribute_group netstat_group = { .name = "statistics", .attrs = netstat_attrs, }; + +#if IS_ENABLED(CONFIG_WIRELESS_EXT) || IS_ENABLED(CONFIG_CFG80211) +static struct attribute *wireless_attrs[] = { + NULL +}; + +static struct attribute_group wireless_group = { + .name = "wireless", + .attrs = wireless_attrs, +}; +#endif #endif /* CONFIG_SYSFS */ #ifdef CONFIG_RPS @@ -1409,6 +1420,15 @@ int netdev_register_kobject(struct net_device *net) groups++; *groups++ = &netstat_group; + +#if IS_ENABLED(CONFIG_WIRELESS_EXT) || IS_ENABLED(CONFIG_CFG80211) + if (net->ieee80211_ptr) + *groups++ = &wireless_group; +#if IS_ENABLED(CONFIG_WIRELESS_EXT) + else if (net->wireless_handlers) + *groups++ = &wireless_group; +#endif +#endif #endif /* CONFIG_SYSFS */ error = device_add(dev); -- cgit v0.10.2 From 29282fde80d44e587f8c152b10049a56e61659f0 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 9 Nov 2012 15:20:17 +0100 Subject: KVM: x86: Fix invalid secondary exec controls in vmx_cpuid_update() The commit [ad756a16: KVM: VMX: Implement PCID/INVPCID for guests with EPT] introduced the unconditional access to SECONDARY_VM_EXEC_CONTROL, and this triggers kernel warnings like below on old CPUs: vmwrite error: reg 401e value a0568000 (err 12) Pid: 13649, comm: qemu-kvm Not tainted 3.7.0-rc4-test2+ #154 Call Trace: [] vmwrite_error+0x27/0x29 [kvm_intel] [] vmcs_writel+0x1b/0x20 [kvm_intel] [] vmx_cpuid_update+0x74/0x170 [kvm_intel] [] kvm_vcpu_ioctl_set_cpuid2+0x76/0x90 [kvm] [] kvm_arch_vcpu_ioctl+0xc37/0xed0 [kvm] [] ? __vunmap+0x9c/0x110 [] ? vmx_vcpu_load+0x39/0x1a0 [kvm_intel] [] ? kvm_arch_vcpu_load+0x52/0x1a0 [kvm] [] ? vcpu_load+0x74/0xd0 [kvm] [] kvm_vcpu_ioctl+0x110/0x5e0 [kvm] [] ? kvm_dev_ioctl+0x4d/0x4a0 [kvm] [] do_vfs_ioctl+0x8f/0x530 [] ? remove_vma+0x56/0x60 [] ? do_munmap+0x328/0x400 [] ? fget_light+0x4c/0x100 [] sys_ioctl+0x91/0xb0 [] system_call_fastpath+0x1a/0x1f This patch adds a check for the availability of secondary exec control to avoid these warnings. Cc: [v3.6+] Signed-off-by: Takashi Iwai Signed-off-by: Marcelo Tosatti diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index ad6b1dd..f858159 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -6549,19 +6549,22 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu) } } - exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL); /* Exposing INVPCID only when PCID is exposed */ best = kvm_find_cpuid_entry(vcpu, 0x7, 0); if (vmx_invpcid_supported() && best && (best->ebx & bit(X86_FEATURE_INVPCID)) && guest_cpuid_has_pcid(vcpu)) { + exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL); exec_control |= SECONDARY_EXEC_ENABLE_INVPCID; vmcs_write32(SECONDARY_VM_EXEC_CONTROL, exec_control); } else { - exec_control &= ~SECONDARY_EXEC_ENABLE_INVPCID; - vmcs_write32(SECONDARY_VM_EXEC_CONTROL, - exec_control); + if (cpu_has_secondary_exec_ctrls()) { + exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL); + exec_control &= ~SECONDARY_EXEC_ENABLE_INVPCID; + vmcs_write32(SECONDARY_VM_EXEC_CONTROL, + exec_control); + } if (best) best->ebx &= ~bit(X86_FEATURE_INVPCID); } -- cgit v0.10.2 From 63c3b902e517012b127d6528434b928ceaa10f7b Mon Sep 17 00:00:00 2001 From: Michel Lespinasse Date: Fri, 16 Nov 2012 14:14:47 -0800 Subject: mm: add anon_vma_lock to validate_mm() Iterating over the vma->anon_vma_chain without anon_vma_lock may cause NULL ptr deref in anon_vma_interval_tree_verify(), because the node in the chain might have been removed. BUG: unable to handle kernel paging request at fffffffffffffff0 IP: [] anon_vma_interval_tree_verify+0xc/0xa0 PGD 4e28067 PUD 4e29067 PMD 0 Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC CPU 0 Pid: 9050, comm: trinity-child64 Tainted: G W 3.7.0-rc2-next-20121025-sasha-00001-g673f98e-dirty #77 RIP: 0010: anon_vma_interval_tree_verify+0xc/0xa0 Process trinity-child64 (pid: 9050, threadinfo ffff880045f80000, task ffff880048eb0000) Call Trace: validate_mm+0x58/0x1e0 vma_adjust+0x635/0x6b0 __split_vma.isra.22+0x161/0x220 split_vma+0x24/0x30 sys_madvise+0x5da/0x7b0 tracesys+0xe1/0xe6 RIP anon_vma_interval_tree_verify+0xc/0xa0 CR2: fffffffffffffff0 Figured out by Bob Liu. Reported-by: Sasha Levin Cc: Bob Liu Signed-off-by: Michel Lespinasse Reviewed-by: Rik van Riel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/mmap.c b/mm/mmap.c index 2d94235..9a796c4 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -334,8 +334,10 @@ void validate_mm(struct mm_struct *mm) struct vm_area_struct *vma = mm->mmap; while (vma) { struct anon_vma_chain *avc; + vma_lock_anon_vma(vma); list_for_each_entry(avc, &vma->anon_vma_chain, same_vma) anon_vma_interval_tree_verify(avc); + vma_unlock_anon_vma(vma); vma = vma->vm_next; i++; } -- cgit v0.10.2 From 1756954c61cb5c97c618ccb366482b9c1f891d6d Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Fri, 16 Nov 2012 14:14:48 -0800 Subject: mm: fix build warning for uninitialized value do_wp_page() sets mmun_called if mmun_start and mmun_end were initialized and, if so, may call mmu_notifier_invalidate_range_end() with these values. This doesn't prevent gcc from emitting a build warning though: mm/memory.c: In function `do_wp_page': mm/memory.c:2530: warning: `mmun_start' may be used uninitialized in this function mm/memory.c:2531: warning: `mmun_end' may be used uninitialized in this function It's much easier to initialize the variables to impossible values and do a simple comparison to determine if they were initialized to remove the bool entirely. Signed-off-by: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/memory.c b/mm/memory.c index fb135ba..221fc9f 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2527,9 +2527,8 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma, int ret = 0; int page_mkwrite = 0; struct page *dirty_page = NULL; - unsigned long mmun_start; /* For mmu_notifiers */ - unsigned long mmun_end; /* For mmu_notifiers */ - bool mmun_called = false; /* For mmu_notifiers */ + unsigned long mmun_start = 0; /* For mmu_notifiers */ + unsigned long mmun_end = 0; /* For mmu_notifiers */ old_page = vm_normal_page(vma, address, orig_pte); if (!old_page) { @@ -2708,8 +2707,7 @@ gotten: goto oom_free_new; mmun_start = address & PAGE_MASK; - mmun_end = (address & PAGE_MASK) + PAGE_SIZE; - mmun_called = true; + mmun_end = mmun_start + PAGE_SIZE; mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end); /* @@ -2778,7 +2776,7 @@ gotten: page_cache_release(new_page); unlock: pte_unmap_unlock(page_table, ptl); - if (mmun_called) + if (mmun_end > mmun_start) mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end); if (old_page) { /* -- cgit v0.10.2 From 9a5a8f19b43430752067ecaee62fc59e11e88fa6 Mon Sep 17 00:00:00 2001 From: Michal Hocko Date: Fri, 16 Nov 2012 14:14:49 -0800 Subject: memcg: oom: fix totalpages calculation for memory.swappiness==0 oom_badness() takes a totalpages argument which says how many pages are available and it uses it as a base for the score calculation. The value is calculated by mem_cgroup_get_limit which considers both limit and total_swap_pages (resp. memsw portion of it). This is usually correct but since fe35004fbf9e ("mm: avoid swapping out with swappiness==0") we do not swap when swappiness is 0 which means that we cannot really use up all the totalpages pages. This in turn confuses oom score calculation if the memcg limit is much smaller than the available swap because the used memory (capped by the limit) is negligible comparing to totalpages so the resulting score is too small if adj!=0 (typically task with CAP_SYS_ADMIN or non zero oom_score_adj). A wrong process might be selected as result. The problem can be worked around by checking mem_cgroup_swappiness==0 and not considering swap at all in such a case. Signed-off-by: Michal Hocko Acked-by: David Rientjes Acked-by: Johannes Weiner Acked-by: KOSAKI Motohiro Acked-by: KAMEZAWA Hiroyuki Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt index c07f7b4..71c4da4 100644 --- a/Documentation/cgroups/memory.txt +++ b/Documentation/cgroups/memory.txt @@ -466,6 +466,10 @@ Note: 5.3 swappiness Similar to /proc/sys/vm/swappiness, but affecting a hierarchy of groups only. +Please note that unlike the global swappiness, memcg knob set to 0 +really prevents from any swapping even if there is a swap storage +available. This might lead to memcg OOM killer if there are no file +pages to reclaim. Following cgroups' swappiness can't be changed. - root cgroup (uses /proc/sys/vm/swappiness). diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 7acf43b..93a7e36 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1452,17 +1452,26 @@ static int mem_cgroup_count_children(struct mem_cgroup *memcg) static u64 mem_cgroup_get_limit(struct mem_cgroup *memcg) { u64 limit; - u64 memsw; limit = res_counter_read_u64(&memcg->res, RES_LIMIT); - limit += total_swap_pages << PAGE_SHIFT; - memsw = res_counter_read_u64(&memcg->memsw, RES_LIMIT); /* - * If memsw is finite and limits the amount of swap space available - * to this memcg, return that limit. + * Do not consider swap space if we cannot swap due to swappiness */ - return min(limit, memsw); + if (mem_cgroup_swappiness(memcg)) { + u64 memsw; + + limit += total_swap_pages << PAGE_SHIFT; + memsw = res_counter_read_u64(&memcg->memsw, RES_LIMIT); + + /* + * If memsw is finite and limits the amount of swap space + * available to this memcg, return that limit. + */ + limit = min(limit, memsw); + } + + return limit; } void mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask, -- cgit v0.10.2 From 18f694271b86ee279e88208550cc49fee206b544 Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Fri, 16 Nov 2012 14:14:52 -0800 Subject: mips, arc: fix build failure Using a cross-compiler to fix another issue, the following build error occurred for mips defconfig: arch/mips/fw/arc/misc.c: In function 'ArcHalt': arch/mips/fw/arc/misc.c:25:2: error: implicit declaration of function 'local_irq_disable' Fix it up by including irqflags.h. Signed-off-by: David Rientjes Cc: Ralf Baechle Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/arch/mips/fw/arc/misc.c b/arch/mips/fw/arc/misc.c index 7cf80ca..f9f5307 100644 --- a/arch/mips/fw/arc/misc.c +++ b/arch/mips/fw/arc/misc.c @@ -11,6 +11,7 @@ */ #include #include +#include #include -- cgit v0.10.2 From bea8c150a7efbc0f204e709b7274fe273f55e0d3 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Fri, 16 Nov 2012 14:14:54 -0800 Subject: memcg: fix hotplugged memory zone oops When MEMCG is configured on (even when it's disabled by boot option), when adding or removing a page to/from its lru list, the zone pointer used for stats updates is nowadays taken from the struct lruvec. (On many configurations, calculating zone from page is slower.) But we have no code to update all the lruvecs (per zone, per memcg) when a memory node is hotadded. Here's an extract from the oops which results when running numactl to bind a program to a newly onlined node: BUG: unable to handle kernel NULL pointer dereference at 0000000000000f60 IP: __mod_zone_page_state+0x9/0x60 Pid: 1219, comm: numactl Not tainted 3.6.0-rc5+ #180 Bochs Bochs Process numactl (pid: 1219, threadinfo ffff880039abc000, task ffff8800383c4ce0) Call Trace: __pagevec_lru_add_fn+0xdf/0x140 pagevec_lru_move_fn+0xb1/0x100 __pagevec_lru_add+0x1c/0x30 lru_add_drain_cpu+0xa3/0x130 lru_add_drain+0x2f/0x40 ... The natural solution might be to use a memcg callback whenever memory is hotadded; but that solution has not been scoped out, and it happens that we do have an easy location at which to update lruvec->zone. The lruvec pointer is discovered either by mem_cgroup_zone_lruvec() or by mem_cgroup_page_lruvec(), and both of those do know the right zone. So check and set lruvec->zone in those; and remove the inadequate attempt to set lruvec->zone from lruvec_init(), which is called before NODE_DATA(node) has been allocated in such cases. Ah, there was one exceptionr. For no particularly good reason, mem_cgroup_force_empty_list() has its own code for deciding lruvec. Change it to use the standard mem_cgroup_zone_lruvec() and mem_cgroup_get_lru_size() too. In fact it was already safe against such an oops (the lru lists in danger could only be empty), but we're better proofed against future changes this way. I've marked this for stable (3.6) since we introduced the problem in 3.5 (now closed to stable); but I have no idea if this is the only fix needed to get memory hotadd working with memcg in 3.6, and received no answer when I enquired twice before. Reported-by: Tang Chen Signed-off-by: Hugh Dickins Acked-by: Johannes Weiner Acked-by: KAMEZAWA Hiroyuki Cc: Konstantin Khlebnikov Cc: Wen Congyang Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 50aaca8..a23923b 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -752,7 +752,7 @@ extern int init_currently_empty_zone(struct zone *zone, unsigned long start_pfn, unsigned long size, enum memmap_context context); -extern void lruvec_init(struct lruvec *lruvec, struct zone *zone); +extern void lruvec_init(struct lruvec *lruvec); static inline struct zone *lruvec_zone(struct lruvec *lruvec) { diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 93a7e36..dd39ba0 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1055,12 +1055,24 @@ struct lruvec *mem_cgroup_zone_lruvec(struct zone *zone, struct mem_cgroup *memcg) { struct mem_cgroup_per_zone *mz; + struct lruvec *lruvec; - if (mem_cgroup_disabled()) - return &zone->lruvec; + if (mem_cgroup_disabled()) { + lruvec = &zone->lruvec; + goto out; + } mz = mem_cgroup_zoneinfo(memcg, zone_to_nid(zone), zone_idx(zone)); - return &mz->lruvec; + lruvec = &mz->lruvec; +out: + /* + * Since a node can be onlined after the mem_cgroup was created, + * we have to be prepared to initialize lruvec->zone here; + * and if offlined then reonlined, we need to reinitialize it. + */ + if (unlikely(lruvec->zone != zone)) + lruvec->zone = zone; + return lruvec; } /* @@ -1087,9 +1099,12 @@ struct lruvec *mem_cgroup_page_lruvec(struct page *page, struct zone *zone) struct mem_cgroup_per_zone *mz; struct mem_cgroup *memcg; struct page_cgroup *pc; + struct lruvec *lruvec; - if (mem_cgroup_disabled()) - return &zone->lruvec; + if (mem_cgroup_disabled()) { + lruvec = &zone->lruvec; + goto out; + } pc = lookup_page_cgroup(page); memcg = pc->mem_cgroup; @@ -1107,7 +1122,16 @@ struct lruvec *mem_cgroup_page_lruvec(struct page *page, struct zone *zone) pc->mem_cgroup = memcg = root_mem_cgroup; mz = page_cgroup_zoneinfo(memcg, page); - return &mz->lruvec; + lruvec = &mz->lruvec; +out: + /* + * Since a node can be onlined after the mem_cgroup was created, + * we have to be prepared to initialize lruvec->zone here; + * and if offlined then reonlined, we need to reinitialize it. + */ + if (unlikely(lruvec->zone != zone)) + lruvec->zone = zone; + return lruvec; } /** @@ -3697,17 +3721,17 @@ unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order, static bool mem_cgroup_force_empty_list(struct mem_cgroup *memcg, int node, int zid, enum lru_list lru) { - struct mem_cgroup_per_zone *mz; + struct lruvec *lruvec; unsigned long flags, loop; struct list_head *list; struct page *busy; struct zone *zone; zone = &NODE_DATA(node)->node_zones[zid]; - mz = mem_cgroup_zoneinfo(memcg, node, zid); - list = &mz->lruvec.lists[lru]; + lruvec = mem_cgroup_zone_lruvec(zone, memcg); + list = &lruvec->lists[lru]; - loop = mz->lru_size[lru]; + loop = mem_cgroup_get_lru_size(lruvec, lru); /* give some margin against EBUSY etc...*/ loop += 256; busy = NULL; @@ -4745,7 +4769,7 @@ static int alloc_mem_cgroup_per_zone_info(struct mem_cgroup *memcg, int node) for (zone = 0; zone < MAX_NR_ZONES; zone++) { mz = &pn->zoneinfo[zone]; - lruvec_init(&mz->lruvec, &NODE_DATA(node)->node_zones[zone]); + lruvec_init(&mz->lruvec); mz->usage_in_excess = 0; mz->on_tree = false; mz->memcg = memcg; diff --git a/mm/mmzone.c b/mm/mmzone.c index 3cef80f..4596d81 100644 --- a/mm/mmzone.c +++ b/mm/mmzone.c @@ -87,7 +87,7 @@ int memmap_valid_within(unsigned long pfn, } #endif /* CONFIG_ARCH_HAS_HOLES_MEMORYMODEL */ -void lruvec_init(struct lruvec *lruvec, struct zone *zone) +void lruvec_init(struct lruvec *lruvec) { enum lru_list lru; @@ -95,8 +95,4 @@ void lruvec_init(struct lruvec *lruvec, struct zone *zone) for_each_lru(lru) INIT_LIST_HEAD(&lruvec->lists[lru]); - -#ifdef CONFIG_MEMCG - lruvec->zone = zone; -#endif } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 5b74de6..c91598b 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4505,7 +4505,7 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat, zone->zone_pgdat = pgdat; zone_pcp_init(zone); - lruvec_init(&zone->lruvec, zone); + lruvec_init(&zone->lruvec); if (!size) continue; -- cgit v0.10.2 From f58b59c1df3cb990d644018e1461cd4acd3c1700 Mon Sep 17 00:00:00 2001 From: Xiaotian Feng Date: Fri, 16 Nov 2012 14:14:55 -0800 Subject: swapfile: fix name leak in swapoff There's a name leak introduced by commit 91a27b2a7567 ("vfs: define struct filename and have getname() return it"). Add the missing putname. [akpm@linux-foundation.org: cleanup] Signed-off-by: Xiaotian Feng Reviewed-by: Jeff Layton Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/swapfile.c b/mm/swapfile.c index 71cd288..f91a255 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -1494,9 +1494,8 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile) BUG_ON(!current->mm); pathname = getname(specialfile); - err = PTR_ERR(pathname); if (IS_ERR(pathname)) - goto out; + return PTR_ERR(pathname); victim = file_open_name(pathname, O_RDWR|O_LARGEFILE, 0); err = PTR_ERR(victim); @@ -1608,6 +1607,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile) out_dput: filp_close(victim, NULL); out: + putname(pathname); return err; } -- cgit v0.10.2 From 2ca3cb50edc351875df13d083524f524cdeb3054 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 16 Nov 2012 14:14:56 -0800 Subject: rapidio: fix kernel-doc warnings Fix rapidio kernel-doc warnings: Warning(drivers/rapidio/rio.c:415): No description found for parameter 'local' Warning(drivers/rapidio/rio.c:415): Excess function parameter 'lstart' description in 'rio_map_inb_region' Warning(include/linux/rio.h:290): No description found for parameter 'switches' Warning(include/linux/rio.h:290): No description found for parameter 'destid_table' Signed-off-by: Randy Dunlap Cc: Matt Porter Acked-by: Alexandre Bounine Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c index c17ae22..0c6fcb4 100644 --- a/drivers/rapidio/rio.c +++ b/drivers/rapidio/rio.c @@ -401,7 +401,7 @@ EXPORT_SYMBOL_GPL(rio_release_inb_pwrite); /** * rio_map_inb_region -- Map inbound memory region. * @mport: Master port. - * @lstart: physical address of memory region to be mapped + * @local: physical address of memory region to be mapped * @rbase: RIO base address assigned to this window * @size: Size of the memory region * @rflags: Flags for mapping. diff --git a/include/linux/rio.h b/include/linux/rio.h index 4187da5..a3e7842 100644 --- a/include/linux/rio.h +++ b/include/linux/rio.h @@ -275,9 +275,11 @@ struct rio_id_table { * struct rio_net - RIO network info * @node: Node in global list of RIO networks * @devices: List of devices in this network + * @switches: List of switches in this netowrk * @mports: List of master ports accessing this network * @hport: Default port for accessing this network * @id: RIO network ID + * @destid_table: destID allocation table */ struct rio_net { struct list_head node; /* node in list of networks */ -- cgit v0.10.2 From 96710098ee124951ff2fed7cd8406da92aad011a Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Fri, 16 Nov 2012 14:14:59 -0800 Subject: mm: revert "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures" Jiri Slaby reported the following: (It's an effective revert of "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures".) Given kswapd had hours of runtime in ps/top output yesterday in the morning and after the revert it's now 2 minutes in sum for the last 24h, I would say, it's gone. The intention of the patch in question was to compensate for the loss of lumpy reclaim. Part of the reason lumpy reclaim worked is because it aggressively reclaimed pages and this patch was meant to be a sane compromise. When compaction fails, it gets deferred and both compaction and reclaim/compaction is deferred avoid excessive reclaim. However, since commit c654345924f7 ("mm: remove __GFP_NO_KSWAPD"), kswapd is woken up each time and continues reclaiming which was not taken into account when the patch was developed. Attempts to address the problem ended up just changing the shape of the problem instead of fixing it. The release window gets closer and while a THP allocation failing is not a major problem, kswapd chewing up a lot of CPU is. This patch reverts commit 83fde0f22872 ("mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures") and will be revisited in the future. Signed-off-by: Mel Gorman Cc: Zdenek Kabelac Tested-by: Valdis Kletnieks Cc: Jiri Slaby Cc: Rik van Riel Cc: Jiri Slaby Cc: Johannes Hirte Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/vmscan.c b/mm/vmscan.c index 8b055e9..48550c6 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1760,28 +1760,6 @@ static bool in_reclaim_compaction(struct scan_control *sc) return false; } -#ifdef CONFIG_COMPACTION -/* - * If compaction is deferred for sc->order then scale the number of pages - * reclaimed based on the number of consecutive allocation failures - */ -static unsigned long scale_for_compaction(unsigned long pages_for_compaction, - struct lruvec *lruvec, struct scan_control *sc) -{ - struct zone *zone = lruvec_zone(lruvec); - - if (zone->compact_order_failed <= sc->order) - pages_for_compaction <<= zone->compact_defer_shift; - return pages_for_compaction; -} -#else -static unsigned long scale_for_compaction(unsigned long pages_for_compaction, - struct lruvec *lruvec, struct scan_control *sc) -{ - return pages_for_compaction; -} -#endif - /* * Reclaim/compaction is used for high-order allocation requests. It reclaims * order-0 pages before compacting the zone. should_continue_reclaim() returns @@ -1829,9 +1807,6 @@ static inline bool should_continue_reclaim(struct lruvec *lruvec, * inactive lists are large enough, continue reclaiming */ pages_for_compaction = (2UL << sc->order); - - pages_for_compaction = scale_for_compaction(pages_for_compaction, - lruvec, sc); inactive_lru_pages = get_lru_size(lruvec, LRU_INACTIVE_FILE); if (nr_swap_pages > 0) inactive_lru_pages += get_lru_size(lruvec, LRU_INACTIVE_ANON); -- cgit v0.10.2 From 498c2280212327858e521e9d21345d4cc2637f54 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 16 Nov 2012 14:15:00 -0800 Subject: mm: highmem: don't treat PKMAP_ADDR(LAST_PKMAP) as a highmem address kmap_to_page returns the corresponding struct page for a virtual address of an arbitrary mapping. This works by checking whether the address falls in the pkmap region and using the pkmap page tables instead of the linear mapping if appropriate. Unfortunately, the bounds checking means that PKMAP_ADDR(LAST_PKMAP) is incorrectly treated as a highmem address and we can end up walking off the end of pkmap_page_table and subsequently passing junk to pte_page. This patch fixes the bound check to stay within the pkmap tables. Signed-off-by: Will Deacon Cc: Mel Gorman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/highmem.c b/mm/highmem.c index d517cd1..2da13a5 100644 --- a/mm/highmem.c +++ b/mm/highmem.c @@ -98,7 +98,7 @@ struct page *kmap_to_page(void *vaddr) { unsigned long addr = (unsigned long)vaddr; - if (addr >= PKMAP_ADDR(0) && addr <= PKMAP_ADDR(LAST_PKMAP)) { + if (addr >= PKMAP_ADDR(0) && addr < PKMAP_ADDR(LAST_PKMAP)) { int i = (addr - PKMAP_ADDR(0)) >> PAGE_SHIFT; return pte_page(pkmap_page_table[i]); } -- cgit v0.10.2 From 215c02bc33bbd5ff4d7379a909462d11f0103218 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Fri, 16 Nov 2012 14:15:03 -0800 Subject: tmpfs: fix shmem_getpage_gfp() VM_BUG_ON Fuzzing with trinity hit the "impossible" VM_BUG_ON(error) (which Fedora has converted to WARNING) in shmem_getpage_gfp(): WARNING: at mm/shmem.c:1151 shmem_getpage_gfp+0xa5c/0xa70() Pid: 29795, comm: trinity-child4 Not tainted 3.7.0-rc2+ #49 Call Trace: warn_slowpath_common+0x7f/0xc0 warn_slowpath_null+0x1a/0x20 shmem_getpage_gfp+0xa5c/0xa70 shmem_fault+0x4f/0xa0 __do_fault+0x71/0x5c0 handle_pte_fault+0x97/0xae0 handle_mm_fault+0x289/0x350 __do_page_fault+0x18e/0x530 do_page_fault+0x2b/0x50 page_fault+0x28/0x30 tracesys+0xe1/0xe6 Thanks to Johannes for pointing to truncation: free_swap_and_cache() only does a trylock on the page, so the page lock we've held since before confirming swap is not enough to protect against truncation. What cleanup is needed in this case? Just delete_from_swap_cache(), which takes care of the memcg uncharge. Signed-off-by: Hugh Dickins Reported-by: Dave Jones Cc: Johannes Weiner Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/shmem.c b/mm/shmem.c index 67afba5..dc12264 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1145,8 +1145,20 @@ repeat: if (!error) { error = shmem_add_to_page_cache(page, mapping, index, gfp, swp_to_radix_entry(swap)); - /* We already confirmed swap, and make no allocation */ - VM_BUG_ON(error); + /* + * We already confirmed swap under page lock, and make + * no memory allocation here, so usually no possibility + * of error; but free_swap_and_cache() only trylocks a + * page, so it is just possible that the entry has been + * truncated or holepunched since swap was confirmed. + * shmem_undo_range() will have done some of the + * unaccounting, now delete_from_swap_cache() will do + * the rest (including mem_cgroup_uncharge_swapcache). + * Reset swap.val? No, leave it so "failed" goes back to + * "repeat": reading a hole and writing should succeed. + */ + if (error) + delete_from_swap_cache(page); } if (error) goto failed; -- cgit v0.10.2 From 0f3c42f522dc1ad7e27affc0a4aa8c790bce0a66 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Fri, 16 Nov 2012 14:15:04 -0800 Subject: tmpfs: change final i_blocks BUG to WARNING Under a particular load on one machine, I have hit shmem_evict_inode()'s BUG_ON(inode->i_blocks), enough times to narrow it down to a particular race between swapout and eviction. It comes from the "if (freed > 0)" asymmetry in shmem_recalc_inode(), and the lack of coherent locking between mapping's nrpages and shmem's swapped count. There's a window in shmem_writepage(), between lowering nrpages in shmem_delete_from_page_cache() and then raising swapped count, when the freed count appears to be +1 when it should be 0, and then the asymmetry stops it from being corrected with -1 before hitting the BUG. One answer is coherent locking: using tree_lock throughout, without info->lock; reasonable, but the raw_spin_lock in percpu_counter_add() on used_blocks makes that messier than expected. Another answer may be a further effort to eliminate the weird shmem_recalc_inode() altogether, but previous attempts at that failed. So far undecided, but for now change the BUG_ON to WARN_ON: in usual circumstances it remains a useful consistency check. Signed-off-by: Hugh Dickins Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/shmem.c b/mm/shmem.c index dc12264..89341b6 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -643,7 +643,7 @@ static void shmem_evict_inode(struct inode *inode) kfree(info->symlink); simple_xattrs_free(&info->xattrs); - BUG_ON(inode->i_blocks); + WARN_ON(inode->i_blocks); shmem_free_inode(inode->i_sb); clear_inode(inode); } -- cgit v0.10.2 From 5576646f3c1abd60d72d19829de6f5d8c2ca8ecf Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 16 Nov 2012 14:15:06 -0800 Subject: revert "mm: fix-up zone present pages" Revert commit 7f1290f2f2a4 ("mm: fix-up zone present pages") That patch tried to fix a issue when calculating zone->present_pages, but it caused a regression on 32bit systems with HIGHMEM. With that change, reset_zone_present_pages() resets all zone->present_pages to zero, and fixup_zone_present_pages() is called to recalculate zone->present_pages when the boot allocator frees core memory pages into buddy allocator. Because highmem pages are not freed by bootmem allocator, all highmem zones' present_pages becomes zero. Various options for improving the situation are being discussed but for now, let's return to the 3.6 code. Cc: Jianguo Wu Cc: Jiang Liu Cc: Petr Tesarik Cc: "Luck, Tony" Cc: Mel Gorman Cc: Yinghai Lu Cc: Minchan Kim Cc: Johannes Weiner Acked-by: David Rientjes Tested-by: Chris Clayton Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index acd5b68..082e383 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -637,7 +637,6 @@ mem_init (void) high_memory = __va(max_low_pfn * PAGE_SIZE); - reset_zone_present_pages(); for_each_online_pgdat(pgdat) if (pgdat->bdata->node_bootmem_map) totalram_pages += free_all_bootmem_node(pgdat); diff --git a/include/linux/mm.h b/include/linux/mm.h index fa06804..bcaab4e 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1684,9 +1684,5 @@ static inline unsigned int debug_guardpage_minorder(void) { return 0; } static inline bool page_is_guard(struct page *page) { return false; } #endif /* CONFIG_DEBUG_PAGEALLOC */ -extern void reset_zone_present_pages(void); -extern void fixup_zone_present_pages(int nid, unsigned long start_pfn, - unsigned long end_pfn); - #endif /* __KERNEL__ */ #endif /* _LINUX_MM_H */ diff --git a/mm/bootmem.c b/mm/bootmem.c index 434be4a..f468185 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -198,8 +198,6 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata) int order = ilog2(BITS_PER_LONG); __free_pages_bootmem(pfn_to_page(start), order); - fixup_zone_present_pages(page_to_nid(pfn_to_page(start)), - start, start + BITS_PER_LONG); count += BITS_PER_LONG; start += BITS_PER_LONG; } else { @@ -210,9 +208,6 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata) if (vec & 1) { page = pfn_to_page(start + off); __free_pages_bootmem(page, 0); - fixup_zone_present_pages( - page_to_nid(page), - start + off, start + off + 1); count++; } vec >>= 1; @@ -226,11 +221,8 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata) pages = bdata->node_low_pfn - bdata->node_min_pfn; pages = bootmem_bootmap_pages(pages); count += pages; - while (pages--) { - fixup_zone_present_pages(page_to_nid(page), - page_to_pfn(page), page_to_pfn(page) + 1); + while (pages--) __free_pages_bootmem(page++, 0); - } bdebug("nid=%td released=%lx\n", bdata - bootmem_node_data, count); diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 56b758a..e4eeaca 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -106,7 +106,6 @@ static void get_page_bootmem(unsigned long info, struct page *page, void __ref put_page_bootmem(struct page *page) { unsigned long type; - struct zone *zone; type = (unsigned long) page->lru.next; BUG_ON(type < MEMORY_HOTPLUG_MIN_BOOTMEM_TYPE || @@ -117,12 +116,6 @@ void __ref put_page_bootmem(struct page *page) set_page_private(page, 0); INIT_LIST_HEAD(&page->lru); __free_pages_bootmem(page, 0); - - zone = page_zone(page); - zone_span_writelock(zone); - zone->present_pages++; - zone_span_writeunlock(zone); - totalram_pages++; } } diff --git a/mm/nobootmem.c b/mm/nobootmem.c index 714d5d6..bd82f6b 100644 --- a/mm/nobootmem.c +++ b/mm/nobootmem.c @@ -116,8 +116,6 @@ static unsigned long __init __free_memory_core(phys_addr_t start, return 0; __free_pages_memory(start_pfn, end_pfn); - fixup_zone_present_pages(pfn_to_nid(start >> PAGE_SHIFT), - start_pfn, end_pfn); return end_pfn - start_pfn; } @@ -128,7 +126,6 @@ unsigned long __init free_low_memory_core_early(int nodeid) phys_addr_t start, end, size; u64 i; - reset_zone_present_pages(); for_each_free_mem_range(i, MAX_NUMNODES, &start, &end, NULL) count += __free_memory_core(start, end); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index c91598b..7bb35ac 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -6098,37 +6098,3 @@ void dump_page(struct page *page) dump_page_flags(page->flags); mem_cgroup_print_bad_page(page); } - -/* reset zone->present_pages */ -void reset_zone_present_pages(void) -{ - struct zone *z; - int i, nid; - - for_each_node_state(nid, N_HIGH_MEMORY) { - for (i = 0; i < MAX_NR_ZONES; i++) { - z = NODE_DATA(nid)->node_zones + i; - z->present_pages = 0; - } - } -} - -/* calculate zone's present pages in buddy system */ -void fixup_zone_present_pages(int nid, unsigned long start_pfn, - unsigned long end_pfn) -{ - struct zone *z; - unsigned long zone_start_pfn, zone_end_pfn; - int i; - - for (i = 0; i < MAX_NR_ZONES; i++) { - z = NODE_DATA(nid)->node_zones + i; - zone_start_pfn = z->zone_start_pfn; - zone_end_pfn = zone_start_pfn + z->spanned_pages; - - /* if the two regions intersect */ - if (!(zone_start_pfn >= end_pfn || zone_end_pfn <= start_pfn)) - z->present_pages += min(end_pfn, zone_end_pfn) - - max(start_pfn, zone_start_pfn); - } -} -- cgit v0.10.2 From f4a75d2eb7b1e2206094b901be09adb31ba63681 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 16 Nov 2012 17:42:40 -0800 Subject: Linux 3.7-rc6 diff --git a/Makefile b/Makefile index 6edac73..9f6ca12 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 7 SUBLEVEL = 0 -EXTRAVERSION = -rc5 +EXTRAVERSION = -rc6 NAME = Terrified Chipmunk # *DOCUMENTATION* -- cgit v0.10.2 From e41105687b90819d04226ee454e2dd0fc1130810 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Tue, 23 Oct 2012 16:16:23 +0200 Subject: iommu/amd: Update MAINTAINERS entry I have no access to my AMD email address anymore. Update entry in MAINTAINERS to the new address. Signed-off-by: Joerg Roedel diff --git a/MAINTAINERS b/MAINTAINERS index bb0b27d..0f043a7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -526,10 +526,10 @@ F: drivers/video/geode/ F: arch/x86/include/asm/geode.h AMD IOMMU (AMD-VI) -M: Joerg Roedel +M: Joerg Roedel L: iommu@lists.linux-foundation.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git -S: Supported +S: Maintained F: drivers/iommu/amd_iommu*.[ch] F: include/linux/amd-iommu.h -- cgit v0.10.2 From b334b64862efd0eee8d07f2faabbe4b56ee974cd Mon Sep 17 00:00:00 2001 From: Cyril Roelandt Date: Sun, 11 Nov 2012 21:49:30 +0100 Subject: iommu/tegra-smmu.c: fix dentry reference leak in smmu_debugfs_stats_show(). Call to d_find_alias() needs a corresponding dput(). Signed-off-by: Cyril Roelandt Signed-off-by: Joerg Roedel diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index a649f14..c0f7a42 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -1054,6 +1054,7 @@ static int smmu_debugfs_stats_show(struct seq_file *s, void *v) stats[i], val, offs); } seq_printf(s, "\n"); + dput(dent); return 0; } -- cgit v0.10.2 From 3da4af0affbb797e8ac4c2b4598da0c34b8cc52a Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Tue, 13 Nov 2012 10:22:03 -0700 Subject: intel-iommu: Fix lookup in add device We can't assume this device exists, fall back to the bridge itself. Signed-off-by: Alex Williamson Tested-by: Matthew Thode Cc: stable@vger.kernel.org Signed-off-by: Joerg Roedel diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index d4a4cd4..0badfa4 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4108,7 +4108,7 @@ static void swap_pci_ref(struct pci_dev **from, struct pci_dev *to) static int intel_iommu_add_device(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); - struct pci_dev *bridge, *dma_pdev; + struct pci_dev *bridge, *dma_pdev = NULL; struct iommu_group *group; int ret; @@ -4122,7 +4122,7 @@ static int intel_iommu_add_device(struct device *dev) dma_pdev = pci_get_domain_bus_and_slot( pci_domain_nr(pdev->bus), bridge->subordinate->number, 0); - else + if (!dma_pdev) dma_pdev = pci_dev_get(bridge); } else dma_pdev = pci_dev_get(pdev); -- cgit v0.10.2 From 42e2976f131d65555d5c1d6c3d47facc63577814 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 12 Nov 2012 22:09:44 +1100 Subject: xfs: fix attr tree double split corruption In certain circumstances, a double split of an attribute tree is needed to insert or replace an attribute. In rare situations, this can go wrong, leaving the attribute tree corrupted. In this case, the attr being replaced is the last attr in a leaf node, and the replacement is larger so doesn't fit in the same leaf node. When we have the initial condition of a node format attribute btree with two leaves at index 1 and 2. Call them L1 and L2. The leaf L1 is completely full, there is not a single byte of free space in it. L2 is mostly empty. The attribute being replaced - call it X - is the last attribute in L1. The way an attribute replace is executed is that the replacement attribute - call it Y - is first inserted into the tree, but has an INCOMPLETE flag set on it so that list traversals ignore it. Once this transaction is committed, a second transaction it run to atomically mark Y as COMPLETE and X as INCOMPLETE, so that a traversal will now find Y and skip X. Once that transaction is committed, attribute X is then removed. So, the initial condition is: +--------+ +--------+ | L1 | | L2 | | fwd: 2 |---->| fwd: 0 | | bwd: 0 |<----| bwd: 1 | | fsp: 0 | | fsp: N | |--------| |--------| | attr A | | attr 1 | |--------| |--------| | attr B | | attr 2 | |--------| |--------| .......... .......... |--------| |--------| | attr X | | attr n | +--------+ +--------+ So now we go to replace X, and see that L1:fsp = 0 - it is full so we can't insert Y in the same leaf. So we record the the location of attribute X so we can track it for later use, then we split L1 into L1 and L3 and reblance across the two leafs. We end with: +--------+ +--------+ +--------+ | L1 | | L3 | | L2 | | fwd: 3 |---->| fwd: 2 |---->| fwd: 0 | | bwd: 0 |<----| bwd: 1 |<----| bwd: 3 | | fsp: M | | fsp: J | | fsp: N | |--------| |--------| |--------| | attr A | | attr X | | attr 1 | |--------| +--------+ |--------| | attr B | | attr 2 | |--------| |--------| .......... .......... |--------| |--------| | attr W | | attr n | +--------+ +--------+ And we track that the original attribute is now at L3:0. We then try to insert Y into L1 again, and find that there isn't enough room because the new attribute is larger than the old one. Hence we have to split again to make room for Y. We end up with this: +--------+ +--------+ +--------+ +--------+ | L1 | | L4 | | L3 | | L2 | | fwd: 4 |---->| fwd: 3 |---->| fwd: 2 |---->| fwd: 0 | | bwd: 0 |<----| bwd: 1 |<----| bwd: 4 |<----| bwd: 3 | | fsp: M | | fsp: J | | fsp: J | | fsp: N | |--------| |--------| |--------| |--------| | attr A | | attr Y | | attr X | | attr 1 | |--------| + INCOMP + +--------+ |--------| | attr B | +--------+ | attr 2 | |--------| |--------| .......... .......... |--------| |--------| | attr W | | attr n | +--------+ +--------+ And now we have the new (incomplete) attribute @ L4:0, and the original attribute at L3:0. At this point, the first transaction is committed, and we move to the flipping of the flags. This is where we are supposed to end up with this: +--------+ +--------+ +--------+ +--------+ | L1 | | L4 | | L3 | | L2 | | fwd: 4 |---->| fwd: 3 |---->| fwd: 2 |---->| fwd: 0 | | bwd: 0 |<----| bwd: 1 |<----| bwd: 4 |<----| bwd: 3 | | fsp: M | | fsp: J | | fsp: J | | fsp: N | |--------| |--------| |--------| |--------| | attr A | | attr Y | | attr X | | attr 1 | |--------| +--------+ + INCOMP + |--------| | attr B | +--------+ | attr 2 | |--------| |--------| .......... .......... |--------| |--------| | attr W | | attr n | +--------+ +--------+ But that doesn't happen properly - the attribute tracking indexes are not pointing to the right locations. What we end up with is both the old attribute to be removed pointing at L4:0 and the new attribute at L4:1. On a debug kernel, this assert fails like so: XFS: Assertion failed: args->index2 < be16_to_cpu(leaf2->hdr.count), file: fs/xfs/xfs_attr_leaf.c, line: 2725 because the new attribute location does not exist. On a production kernel, this goes unnoticed and the code proceeds ahead merrily and removes L4 because it thinks that is the block that is no longer needed. This leaves the hash index node pointing to entries L1, L4 and L2, but only blocks L1, L3 and L2 to exist. Further, the leaf level sibling list is L1 <-> L4 <-> L2, but L4 is now free space, and so everything is busted. This corruption is caused by the removal of the old attribute triggering a join - it joins everything correctly but then frees the wrong block. xfs_repair will report something like: bad sibling back pointer for block 4 in attribute fork for inode 131 problem with attribute contents in inode 131 would clear attr fork bad nblocks 8 for inode 131, would reset to 3 bad anextents 4 for inode 131, would reset to 0 The problem lies in the assignment of the old/new blocks for tracking purposes when the double leaf split occurs. The first split tries to place the new attribute inside the current leaf (i.e. "inleaf == true") and moves the old attribute (X) to the new block. This sets up the old block/index to L1:X, and newly allocated block to L3:0. It then moves attr X to the new block and tries to insert attr Y at the old index. That fails, so it splits again. With the second split, the rebalance ends up placing the new attr in the second new block - L4:0 - and this is where the code goes wrong. What is does is it sets both the new and old block index to the second new block. Hence it inserts attr Y at the right place (L4:0) but overwrites the current location of the attr to replace that is held in the new block index (currently L3:0). It over writes it with L4:1 - the index we later assert fail on. Hopefully this table will show this in a foramt that is a bit easier to understand: Split old attr index new attr index vanilla patched vanilla patched before 1st L1:26 L1:26 N/A N/A after 1st L3:0 L3:0 L1:26 L1:26 after 2nd L4:0 L3:0 L4:1 L4:0 ^^^^ ^^^^ wrong wrong The fix is surprisingly simple, for all this analysis - just stop the rebalance on the out-of leaf case from overwriting the new attr index - it's already correct for the double split case. Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c index d330111..70eec18 100644 --- a/fs/xfs/xfs_attr_leaf.c +++ b/fs/xfs/xfs_attr_leaf.c @@ -1291,6 +1291,7 @@ xfs_attr_leaf_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1, leaf2 = blk2->bp->b_addr; ASSERT(leaf1->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC)); ASSERT(leaf2->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC)); + ASSERT(leaf2->hdr.count == 0); args = state->args; trace_xfs_attr_leaf_rebalance(args); @@ -1361,6 +1362,7 @@ xfs_attr_leaf_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1, * I assert that since all callers pass in an empty * second buffer, this code should never execute. */ + ASSERT(0); /* * Figure the total bytes to be added to the destination leaf. @@ -1422,10 +1424,24 @@ xfs_attr_leaf_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1, args->index2 = 0; args->blkno2 = blk2->blkno; } else { + /* + * On a double leaf split, the original attr location + * is already stored in blkno2/index2, so don't + * overwrite it overwise we corrupt the tree. + */ blk2->index = blk1->index - be16_to_cpu(leaf1->hdr.count); - args->index = args->index2 = blk2->index; - args->blkno = args->blkno2 = blk2->blkno; + args->index = blk2->index; + args->blkno = blk2->blkno; + if (!state->extravalid) { + /* + * set the new attr location to match the old + * one and let the higher level split code + * decide where in the leaf to place it. + */ + args->index2 = blk2->index; + args->blkno2 = blk2->blkno; + } } } else { ASSERT(state->inleaf == 1); -- cgit v0.10.2 From 3daed8bc3e49b9695ae931b9f472b5b90d1965b3 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 12 Nov 2012 22:09:45 +1100 Subject: xfs: fix broken error handling in xfs_vm_writepage When we shut down the filesystem, it might first be detected in writeback when we are allocating a inode size transaction. This happens after we have moved all the pages into the writeback state and unlocked them. Unfortunately, if we fail to set up the transaction we then abort writeback and try to invalidate the current page. This then triggers are BUG() in block_invalidatepage() because we are trying to invalidate an unlocked page. Fixing this is a bit of a chicken and egg problem - we can't allocate the transaction until we've clustered all the pages into the IO and we know the size of it (i.e. whether the last block of the IO is beyond the current EOF or not). However, we don't want to hold pages locked for long periods of time, especially while we lock other pages to cluster them into the write. To fix this, we need to make a clear delineation in writeback where errors can only be handled by IO completion processing. That is, once we have marked a page for writeback and unlocked it, we have to report errors via IO completion because we've already started the IO. We may not have submitted any IO, but we've changed the page state to indicate that it is under IO so we must now use the IO completion path to report errors. To do this, add an error field to xfs_submit_ioend() to pass it the error that occurred during the building on the ioend chain. When this is non-zero, mark each ioend with the error and call xfs_finish_ioend() directly rather than building bios. This will immediately push the ioends through completion processing with the error that has occurred. Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index e562dd4..e57e2da 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -481,11 +481,17 @@ static inline int bio_add_buffer(struct bio *bio, struct buffer_head *bh) * * The fix is two passes across the ioend list - one to start writeback on the * buffer_heads, and then submit them for I/O on the second pass. + * + * If @fail is non-zero, it means that we have a situation where some part of + * the submission process has failed after we have marked paged for writeback + * and unlocked them. In this situation, we need to fail the ioend chain rather + * than submit it to IO. This typically only happens on a filesystem shutdown. */ STATIC void xfs_submit_ioend( struct writeback_control *wbc, - xfs_ioend_t *ioend) + xfs_ioend_t *ioend, + int fail) { xfs_ioend_t *head = ioend; xfs_ioend_t *next; @@ -506,6 +512,18 @@ xfs_submit_ioend( next = ioend->io_list; bio = NULL; + /* + * If we are failing the IO now, just mark the ioend with an + * error and finish it. This will run IO completion immediately + * as there is only one reference to the ioend at this point in + * time. + */ + if (fail) { + ioend->io_error = -fail; + xfs_finish_ioend(ioend); + continue; + } + for (bh = ioend->io_buffer_head; bh; bh = bh->b_private) { if (!bio) { @@ -1060,7 +1078,18 @@ xfs_vm_writepage( xfs_start_page_writeback(page, 1, count); - if (ioend && imap_valid) { + /* if there is no IO to be submitted for this page, we are done */ + if (!ioend) + return 0; + + ASSERT(iohead); + + /* + * Any errors from this point onwards need tobe reported through the IO + * completion path as we have marked the initial page as under writeback + * and unlocked it. + */ + if (imap_valid) { xfs_off_t end_index; end_index = imap.br_startoff + imap.br_blockcount; @@ -1079,20 +1108,15 @@ xfs_vm_writepage( wbc, end_index); } - if (iohead) { - /* - * Reserve log space if we might write beyond the on-disk - * inode size. - */ - if (ioend->io_type != XFS_IO_UNWRITTEN && - xfs_ioend_is_append(ioend)) { - err = xfs_setfilesize_trans_alloc(ioend); - if (err) - goto error; - } - xfs_submit_ioend(wbc, iohead); - } + /* + * Reserve log space if we might write beyond the on-disk inode size. + */ + err = 0; + if (ioend->io_type != XFS_IO_UNWRITTEN && xfs_ioend_is_append(ioend)) + err = xfs_setfilesize_trans_alloc(ioend); + + xfs_submit_ioend(wbc, iohead, err); return 0; -- cgit v0.10.2 From d69043c42d8c6414fa28ad18d99973aa6c1c2e24 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 12 Nov 2012 22:09:46 +1100 Subject: xfs: drop buffer io reference when a bad bio is built Error handling in xfs_buf_ioapply_map() does not handle IO reference counts correctly. We increment the b_io_remaining count before building the bio, but then fail to decrement it in the failure case. This leads to the buffer never running IO completion and releasing the reference that the IO holds, so at unmount we can leak the buffer. This leak is captured by this assert failure during unmount: XFS: Assertion failed: atomic_read(&pag->pag_ref) == 0, file: fs/xfs/xfs_mount.c, line: 273 This is not a new bug - the b_io_remaining accounting has had this problem for a long, long time - it's just very hard to get a zero length bio being built by this code... Further, the buffer IO error can be overwritten on a multi-segment buffer by subsequent bio completions for partial sections of the buffer. Hence we should only set the buffer error status if the buffer is not already carrying an error status. This ensures that a partial IO error on a multi-segment buffer will not be lost. This part of the problem is a regression, however. cc: Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 933b793..4b0b8dd 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1197,9 +1197,14 @@ xfs_buf_bio_end_io( { xfs_buf_t *bp = (xfs_buf_t *)bio->bi_private; - xfs_buf_ioerror(bp, -error); + /* + * don't overwrite existing errors - otherwise we can lose errors on + * buffers that require multiple bios to complete. + */ + if (!bp->b_error) + xfs_buf_ioerror(bp, -error); - if (!error && xfs_buf_is_vmapped(bp) && (bp->b_flags & XBF_READ)) + if (!bp->b_error && xfs_buf_is_vmapped(bp) && (bp->b_flags & XBF_READ)) invalidate_kernel_vmap_range(bp->b_addr, xfs_buf_vmap_len(bp)); _xfs_buf_ioend(bp, 1); @@ -1279,6 +1284,11 @@ next_chunk: if (size) goto next_chunk; } else { + /* + * This is guaranteed not to be the last io reference count + * because the caller (xfs_buf_iorequest) holds a count itself. + */ + atomic_dec(&bp->b_io_remaining); xfs_buf_ioerror(bp, EIO); bio_put(bio); } -- cgit v0.10.2 From e91337609afdfaa1936c91b519ba7d7e426814cc Mon Sep 17 00:00:00 2001 From: Jamie Lentin Date: Sun, 28 Oct 2012 12:23:24 +0000 Subject: mvebu-gpio: Disable blinking when enabling a GPIO for output The plat-orion GPIO driver would disable any pin blinking whenever using a pin for output. Do the same here, as a blinking LED will continue to blink regardless of what the GPIO pin level is. Signed-off-by: Jamie Lentin Acked-by: Thomas Petazzoni Signed-off-by: Linus Walleij diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c index cf7afb9..be65c04 100644 --- a/drivers/gpio/gpio-mvebu.c +++ b/drivers/gpio/gpio-mvebu.c @@ -92,6 +92,11 @@ static inline void __iomem *mvebu_gpioreg_out(struct mvebu_gpio_chip *mvchip) return mvchip->membase + GPIO_OUT_OFF; } +static inline void __iomem *mvebu_gpioreg_blink(struct mvebu_gpio_chip *mvchip) +{ + return mvchip->membase + GPIO_BLINK_EN_OFF; +} + static inline void __iomem *mvebu_gpioreg_io_conf(struct mvebu_gpio_chip *mvchip) { return mvchip->membase + GPIO_IO_CONF_OFF; @@ -206,6 +211,23 @@ static int mvebu_gpio_get(struct gpio_chip *chip, unsigned pin) return (u >> pin) & 1; } +static void mvebu_gpio_blink(struct gpio_chip *chip, unsigned pin, int value) +{ + struct mvebu_gpio_chip *mvchip = + container_of(chip, struct mvebu_gpio_chip, chip); + unsigned long flags; + u32 u; + + spin_lock_irqsave(&mvchip->lock, flags); + u = readl_relaxed(mvebu_gpioreg_blink(mvchip)); + if (value) + u |= 1 << pin; + else + u &= ~(1 << pin); + writel_relaxed(u, mvebu_gpioreg_blink(mvchip)); + spin_unlock_irqrestore(&mvchip->lock, flags); +} + static int mvebu_gpio_direction_input(struct gpio_chip *chip, unsigned pin) { struct mvebu_gpio_chip *mvchip = @@ -244,6 +266,7 @@ static int mvebu_gpio_direction_output(struct gpio_chip *chip, unsigned pin, if (ret) return ret; + mvebu_gpio_blink(chip, pin, 0); mvebu_gpio_set(chip, pin, value); spin_lock_irqsave(&mvchip->lock, flags); -- cgit v0.10.2 From cb144fe8e0e70ccb12e93c9c9f010a25b3f2a158 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Thu, 1 Nov 2012 11:22:11 +0100 Subject: gpio: adnp: Depend on OF_GPIO instead of OF The driver accesses the of_node field of struct gpio_chip, which is only available if OF_GPIO is selected. This solves a build issue on SPARC which conflicts with OF_GPIO and therefore does not provide this field. Signed-off-by: Thierry Reding Signed-off-by: Linus Walleij diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index f11d8e3..47150f5 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -466,7 +466,7 @@ config GPIO_ADP5588_IRQ config GPIO_ADNP tristate "Avionic Design N-bit GPIO expander" - depends on I2C && OF + depends on I2C && OF_GPIO help This option enables support for N GPIOs found on Avionic Design I2C GPIO expanders. The register space will be extended by powers -- cgit v0.10.2 From cbf24fad8e6e97b7cd7dd1099f5b801689dc234a Mon Sep 17 00:00:00 2001 From: "Daniel M. Weeks" Date: Tue, 6 Nov 2012 23:51:05 -0500 Subject: gpio-mcp23s08: Build I2C support even when CONFIG_I2C=m The driver has both SPI and I2C pieces. The appropriate pieces are built based on whether SPI and/or I2C is/are enabled. However, it was only checking if I2C was built-in, never if it was built as a module. This patch checks for either since building both this driver and I2C as modules is possible. Signed-off-by: Daniel M. Weeks Signed-off-by: Linus Walleij diff --git a/drivers/gpio/gpio-mcp23s08.c b/drivers/gpio/gpio-mcp23s08.c index 0f42518..ce1c847 100644 --- a/drivers/gpio/gpio-mcp23s08.c +++ b/drivers/gpio/gpio-mcp23s08.c @@ -77,7 +77,7 @@ struct mcp23s08_driver_data { /*----------------------------------------------------------------------*/ -#ifdef CONFIG_I2C +#if IS_ENABLED(CONFIG_I2C) static int mcp23008_read(struct mcp23s08 *mcp, unsigned reg) { @@ -399,7 +399,7 @@ static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev, break; #endif /* CONFIG_SPI_MASTER */ -#ifdef CONFIG_I2C +#if IS_ENABLED(CONFIG_I2C) case MCP_TYPE_008: mcp->ops = &mcp23008_ops; mcp->chip.ngpio = 8; @@ -473,7 +473,7 @@ fail: /*----------------------------------------------------------------------*/ -#ifdef CONFIG_I2C +#if IS_ENABLED(CONFIG_I2C) static int __devinit mcp230xx_probe(struct i2c_client *client, const struct i2c_device_id *id) -- cgit v0.10.2 From 3ea160b3e8f0de8161861995d9901f61192fc0b0 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Fri, 16 Nov 2012 08:06:16 -0800 Subject: target: Fix handling of aborted commands - If we stop processing an already-aborted command in target_execute_cmd(), then we need to complete t_transport_stop_comp to wake up the the TMR handling thread, or else it will end up waiting forever. - If we've a already sent an "aborted" status for a command in transport_check_aborted_status() then we should bail out of transport_send_task_abort() to avoid freeing the command twice. Signed-off-by: Roland Dreier Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 9097155..dcecbfb 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1819,8 +1819,10 @@ void target_execute_cmd(struct se_cmd *cmd) /* * If the received CDB has aleady been aborted stop processing it here. */ - if (transport_check_aborted_status(cmd, 1)) + if (transport_check_aborted_status(cmd, 1)) { + complete(&cmd->t_transport_stop_comp); return; + } /* * Determine if IOCTL context caller in requesting the stopping of this @@ -3067,7 +3069,7 @@ void transport_send_task_abort(struct se_cmd *cmd) unsigned long flags; spin_lock_irqsave(&cmd->t_state_lock, flags); - if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) { + if (cmd->se_cmd_flags & (SCF_SENT_CHECK_CONDITION | SCF_SENT_DELAYED_TAS)) { spin_unlock_irqrestore(&cmd->t_state_lock, flags); return; } -- cgit v0.10.2 From 34fa78b59c52d1db3513db4c1a999db26b2e9ac2 Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Sat, 17 Nov 2012 22:27:04 +0100 Subject: m68k: fix sigset_t accessor functions The sigaddset/sigdelset/sigismember functions that are implemented with bitfield insn cannot allow the sigset argument to be placed in a data register since the sigset is wider than 32 bits. Remove the "d" constraint from the asm statements. The effect of the bug is that sending RT signals does not work, the signal number is truncated modulo 32. Signed-off-by: Andreas Schwab Signed-off-by: Geert Uytterhoeven Cc: stable@vger.kernel.org diff --git a/arch/m68k/include/asm/signal.h b/arch/m68k/include/asm/signal.h index 67e489d..2df26b5 100644 --- a/arch/m68k/include/asm/signal.h +++ b/arch/m68k/include/asm/signal.h @@ -41,7 +41,7 @@ struct k_sigaction { static inline void sigaddset(sigset_t *set, int _sig) { asm ("bfset %0{%1,#1}" - : "+od" (*set) + : "+o" (*set) : "id" ((_sig - 1) ^ 31) : "cc"); } @@ -49,7 +49,7 @@ static inline void sigaddset(sigset_t *set, int _sig) static inline void sigdelset(sigset_t *set, int _sig) { asm ("bfclr %0{%1,#1}" - : "+od" (*set) + : "+o" (*set) : "id" ((_sig - 1) ^ 31) : "cc"); } @@ -65,7 +65,7 @@ static inline int __gen_sigismember(sigset_t *set, int _sig) int ret; asm ("bfextu %1{%2,#1},%0" : "=d" (ret) - : "od" (*set), "id" ((_sig-1) ^ 31) + : "o" (*set), "id" ((_sig-1) ^ 31) : "cc"); return ret; } -- cgit v0.10.2 From e1b69fdf33f63cfa600b992172d7376f9d9ef2e9 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Mon, 15 Oct 2012 17:57:36 +0200 Subject: iwlwifi: don't WARN when a non empty queue is disabled This can happen when we shut down suddenly an interface. Cc: stable@vger.kernel.org Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c index 105e3af..79a4ddc 100644 --- a/drivers/net/wireless/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/iwlwifi/pcie/tx.c @@ -480,20 +480,12 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, int fifo, void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - u16 rd_ptr, wr_ptr; - int n_bd = trans_pcie->txq[txq_id].q.n_bd; if (!test_and_clear_bit(txq_id, trans_pcie->queue_used)) { WARN_ONCE(1, "queue %d not used", txq_id); return; } - rd_ptr = iwl_read_prph(trans, SCD_QUEUE_RDPTR(txq_id)) & (n_bd - 1); - wr_ptr = iwl_read_prph(trans, SCD_QUEUE_WRPTR(txq_id)); - - WARN_ONCE(rd_ptr != wr_ptr, "queue %d isn't empty: [%d,%d]", - txq_id, rd_ptr, wr_ptr); - iwl_txq_set_inactive(trans, txq_id); IWL_DEBUG_TX_QUEUES(trans, "Deactivate queue %d\n", txq_id); } -- cgit v0.10.2 From e99ddfde6ae0dd2662bb40435696002b590e4057 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Wed, 31 Oct 2012 16:35:30 +0100 Subject: ALSA: ua101, usx2y: fix broken MIDI output Commit 88a8516a2128 (ALSA: usbaudio: implement USB autosuspend) added autosuspend code to all files making up the snd-usb-audio driver. However, midi.c is part of snd-usb-lib and is also used by other drivers, not all of which support autosuspend. Thus, calls to usb_autopm_get_interface() could fail, and this unexpected error would result in the MIDI output being completely unusable. Make it work by ignoring the error that is expected with drivers that do not support autosuspend. Reported-by: Colin Fletcher Reported-by: Devin Venable Reported-by: Dr Nick Bailey Reported-by: Jannis Achstetter Reported-by: Rui Nuno Capela Cc: Oliver Neukum Cc: 2.6.39+ Signed-off-by: Clemens Ladisch diff --git a/sound/usb/midi.c b/sound/usb/midi.c index c83f614..eeefbce 100644 --- a/sound/usb/midi.c +++ b/sound/usb/midi.c @@ -148,6 +148,7 @@ struct snd_usb_midi_out_endpoint { struct snd_usb_midi_out_endpoint* ep; struct snd_rawmidi_substream *substream; int active; + bool autopm_reference; uint8_t cable; /* cable number << 4 */ uint8_t state; #define STATE_UNKNOWN 0 @@ -1076,7 +1077,8 @@ static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream) return -ENXIO; } err = usb_autopm_get_interface(umidi->iface); - if (err < 0) + port->autopm_reference = err >= 0; + if (err < 0 && err != -EACCES) return -EIO; substream->runtime->private_data = port; port->state = STATE_UNKNOWN; @@ -1087,9 +1089,11 @@ static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream) static int snd_usbmidi_output_close(struct snd_rawmidi_substream *substream) { struct snd_usb_midi* umidi = substream->rmidi->private_data; + struct usbmidi_out_port *port = substream->runtime->private_data; substream_open(substream, 0); - usb_autopm_put_interface(umidi->iface); + if (port->autopm_reference) + usb_autopm_put_interface(umidi->iface); return 0; } -- cgit v0.10.2 From 3587b1b097d70c2eb9fee95ea7995d13c05f66e5 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 18 Nov 2012 19:19:00 +0000 Subject: fanotify: fix FAN_Q_OVERFLOW case of fanotify_read() If the FAN_Q_OVERFLOW bit set in event->mask, the fanotify event metadata will not contain a valid file descriptor, but copy_event_to_user() didn't check for that, and unconditionally does a fd_install() on the file descriptor. Which in turn will cause a BUG_ON() in __fd_install(). Introduced by commit 352e3b249284 ("fanotify: sanitize failure exits in copy_event_to_user()") Mea culpa - missed that path ;-/ Reported-by: Alex Shi Signed-off-by: Al Viro Signed-off-by: Linus Torvalds diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index 721d692..6fcaeb8 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -258,7 +258,8 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group, if (ret) goto out_close_fd; - fd_install(fd, f); + if (fd != FAN_NOFD) + fd_install(fd, f); return fanotify_event_metadata.event_len; out_close_fd: -- cgit v0.10.2 From 4113014f2d7bef992ed373c30b6b4ba4be6969ea Mon Sep 17 00:00:00 2001 From: Kelly Doran Date: Thu, 15 Nov 2012 14:37:28 +1000 Subject: drm/nvc0/disp: fix thinko in vblank regression fix.. Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c index 05a909a..15b182c 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c @@ -49,13 +49,7 @@ nv50_disp_intr_vblank(struct nv50_disp_priv *priv, int crtc) if (chan->vblank.crtc != crtc) continue; - if (nv_device(priv)->chipset == 0x50) { - nv_wr32(priv, 0x001704, chan->vblank.channel); - nv_wr32(priv, 0x001710, 0x80000000 | chan->vblank.ctxdma); - bar->flush(bar); - nv_wr32(priv, 0x001570, chan->vblank.offset); - nv_wr32(priv, 0x001574, chan->vblank.value); - } else { + if (nv_device(priv)->chipset >= 0xc0) { nv_wr32(priv, 0x001718, 0x80000000 | chan->vblank.channel); bar->flush(bar); nv_wr32(priv, 0x06000c, @@ -63,6 +57,17 @@ nv50_disp_intr_vblank(struct nv50_disp_priv *priv, int crtc) nv_wr32(priv, 0x060010, lower_32_bits(chan->vblank.offset)); nv_wr32(priv, 0x060014, chan->vblank.value); + } else { + nv_wr32(priv, 0x001704, chan->vblank.channel); + nv_wr32(priv, 0x001710, 0x80000000 | chan->vblank.ctxdma); + bar->flush(bar); + if (nv_device(priv)->chipset == 0x50) { + nv_wr32(priv, 0x001570, chan->vblank.offset); + nv_wr32(priv, 0x001574, chan->vblank.value); + } else { + nv_wr32(priv, 0x060010, chan->vblank.offset); + nv_wr32(priv, 0x060014, chan->vblank.value); + } } list_del(&chan->vblank.head); -- cgit v0.10.2 From 1f150b3e7a722ebfc68eec5d83a9fe1ee8d75d71 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Sun, 11 Nov 2012 19:58:52 +0100 Subject: drm/nv40: allocate ctxprog with kmalloc Some archs defconfigs have CONFIG_FRAME_WARN set to 1024, which lead to this warning: drivers/gpu/drm/nouveau/core/engine/graph/ctxnv40.c: warning: the frame size of 1184 bytes is larger than 1024 bytes Reported-by: Geert Uytterhoeven Signed-off-by: Marcin Slusarz Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnv40.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnv40.c index e45035e..7bbb1e1 100644 --- a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnv40.c +++ b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnv40.c @@ -669,21 +669,27 @@ nv40_grctx_fill(struct nouveau_device *device, struct nouveau_gpuobj *mem) }); } -void +int nv40_grctx_init(struct nouveau_device *device, u32 *size) { - u32 ctxprog[256], i; + u32 *ctxprog = kmalloc(256 * 4, GFP_KERNEL), i; struct nouveau_grctx ctx = { .device = device, .mode = NOUVEAU_GRCTX_PROG, .data = ctxprog, - .ctxprog_max = ARRAY_SIZE(ctxprog) + .ctxprog_max = 256, }; + if (!ctxprog) + return -ENOMEM; + nv40_grctx_generate(&ctx); nv_wr32(device, 0x400324, 0); for (i = 0; i < ctx.ctxprog_len; i++) nv_wr32(device, 0x400328, ctxprog[i]); *size = ctx.ctxvals_pos * 4; + + kfree(ctxprog); + return 0; } diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c b/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c index 4250012..cc6574e 100644 --- a/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c +++ b/drivers/gpu/drm/nouveau/core/engine/graph/nv40.c @@ -346,7 +346,9 @@ nv40_graph_init(struct nouveau_object *object) return ret; /* generate and upload context program */ - nv40_grctx_init(nv_device(priv), &priv->size); + ret = nv40_grctx_init(nv_device(priv), &priv->size); + if (ret) + return ret; /* No context present currently */ nv_wr32(priv, NV40_PGRAPH_CTXCTL_CUR, 0x00000000); diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nv40.h b/drivers/gpu/drm/nouveau/core/engine/graph/nv40.h index d2ac975..7da35a4 100644 --- a/drivers/gpu/drm/nouveau/core/engine/graph/nv40.h +++ b/drivers/gpu/drm/nouveau/core/engine/graph/nv40.h @@ -15,7 +15,7 @@ nv44_graph_class(void *priv) return !(0x0baf & (1 << (device->chipset & 0x0f))); } -void nv40_grctx_init(struct nouveau_device *, u32 *size); +int nv40_grctx_init(struct nouveau_device *, u32 *size); void nv40_grctx_fill(struct nouveau_device *, struct nouveau_gpuobj *); #endif -- cgit v0.10.2 From bf7e438bcaff4b732f86bb2eb48fc4fee04dc31b Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Sun, 11 Nov 2012 20:00:09 +0100 Subject: drm/nouveau: fix crash with noaccel=1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reported-by: Ortwin Glück Signed-off-by: Marcin Slusarz Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c index cc79c79..cbf1fc6 100644 --- a/drivers/gpu/drm/nouveau/nouveau_abi16.c +++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c @@ -241,6 +241,10 @@ nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS) if (unlikely(!abi16)) return -ENOMEM; + + if (!drm->channel) + return nouveau_abi16_put(abi16, -ENODEV); + client = nv_client(abi16->client); if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0) -- cgit v0.10.2 From d9c390561d1c4e520773e62781bbf89bb6845353 Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Fri, 16 Nov 2012 17:47:16 +0100 Subject: drm/nouveau: add missing pll_calc calls Fixes a null pointer dereference when reclocking on my fermi. Signed-off-by: Maarten Lankhorst Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/clock.h b/drivers/gpu/drm/nouveau/core/include/subdev/clock.h index 39e73b9..41b7a6a 100644 --- a/drivers/gpu/drm/nouveau/core/include/subdev/clock.h +++ b/drivers/gpu/drm/nouveau/core/include/subdev/clock.h @@ -54,6 +54,7 @@ int nv04_clock_pll_calc(struct nouveau_clock *, struct nvbios_pll *, int clk, struct nouveau_pll_vals *); int nv04_clock_pll_prog(struct nouveau_clock *, u32 reg1, struct nouveau_pll_vals *); - +int nva3_clock_pll_calc(struct nouveau_clock *, struct nvbios_pll *, + int clk, struct nouveau_pll_vals *); #endif diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c index cc8d7d1..9068c98 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c +++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c @@ -66,6 +66,24 @@ nva3_clock_pll_set(struct nouveau_clock *clk, u32 type, u32 freq) return ret; } +int +nva3_clock_pll_calc(struct nouveau_clock *clock, struct nvbios_pll *info, + int clk, struct nouveau_pll_vals *pv) +{ + int ret, N, M, P; + + ret = nva3_pll_calc(clock, info, clk, &N, NULL, &M, &P); + + if (ret > 0) { + pv->refclk = info->refclk; + pv->N1 = N; + pv->M1 = M; + pv->log2P = P; + } + return ret; +} + + static int nva3_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nouveau_oclass *oclass, void *data, u32 size, @@ -80,6 +98,7 @@ nva3_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine, return ret; priv->base.pll_set = nva3_clock_pll_set; + priv->base.pll_calc = nva3_clock_pll_calc; return 0; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c index 5ccce0b..f6962c9 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c @@ -79,6 +79,7 @@ nvc0_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine, return ret; priv->base.pll_set = nvc0_clock_pll_set; + priv->base.pll_calc = nva3_clock_pll_calc; return 0; } -- cgit v0.10.2 From 3bb076af2ae571a48465972d5747175cec3564cd Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Sat, 17 Nov 2012 21:33:15 +0100 Subject: drm/nouveau/bios: fix DCB v1.5 parsing memcmp->nv_strncmp conversion, in addition to name change, should have inverted the return value. But nv_strncmp does not act like strncmp - it does not check for string terminator, returns true/false instead of -1/0/1 and has different parameters order. Let's rename it to nv_memcmp and let it act like memcmp. Signed-off-by: Marcin Slusarz Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/include/core/object.h b/drivers/gpu/drm/nouveau/core/include/core/object.h index 818feab..486f1a9 100644 --- a/drivers/gpu/drm/nouveau/core/include/core/object.h +++ b/drivers/gpu/drm/nouveau/core/include/core/object.h @@ -175,14 +175,18 @@ nv_mo32(void *obj, u32 addr, u32 mask, u32 data) return temp; } -static inline bool -nv_strncmp(void *obj, u32 addr, u32 len, const char *str) +static inline int +nv_memcmp(void *obj, u32 addr, const char *str, u32 len) { + unsigned char c1, c2; + while (len--) { - if (nv_ro08(obj, addr++) != *(str++)) - return false; + c1 = nv_ro08(obj, addr++); + c2 = *(str++); + if (c1 != c2) + return c1 - c2; } - return true; + return 0; } #endif diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c b/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c index 7d75038..c511971 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c @@ -64,7 +64,7 @@ dcb_table(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) } } else if (*ver >= 0x15) { - if (!nv_strncmp(bios, dcb - 7, 7, "DEV_REC")) { + if (!nv_memcmp(bios, dcb - 7, "DEV_REC", 7)) { u16 i2c = nv_ro16(bios, dcb + 2); *hdr = 4; *cnt = (i2c - dcb) / 10; -- cgit v0.10.2 From 8495c0da20bc496ac9d5da2b292adb28f61d2713 Mon Sep 17 00:00:00 2001 From: Francois Romieu Date: Sun, 18 Nov 2012 23:41:50 +0100 Subject: sis900: fix sis900_set_mode call parameters. Leftover of 57d6d456cfb89264f87d24f52640ede23fdf12bd ("sis900: stop using net_device.{base_addr, irq} and convert to __iomem."). It is needed for suspend / resume to work. Signed-off-by: Francois Romieu Tested-by: Jan Janssen Cc: Daniele Venzano Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/sis/sis900.c b/drivers/net/ethernet/sis/sis900.c index fb9f6b3..edf5edb 100644 --- a/drivers/net/ethernet/sis/sis900.c +++ b/drivers/net/ethernet/sis/sis900.c @@ -2479,7 +2479,7 @@ static int sis900_resume(struct pci_dev *pci_dev) netif_start_queue(net_dev); /* Workaround for EDB */ - sis900_set_mode(ioaddr, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED); + sis900_set_mode(sis_priv, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED); /* Enable all known interrupts by setting the interrupt mask. */ sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE); -- cgit v0.10.2 From fae2ae2a900a5c7bb385fe4075f343e7e2d5daa2 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 18 Nov 2012 22:27:03 -0500 Subject: sparc64: not any error from do_sigaltstack() should fail rt_sigreturn() If a signal handler is executed on altstack and another signal comes, we will end up with rt_sigreturn() on return from the second handler getting -EPERM from do_sigaltstack(). It's perfectly OK, since we are not asking to change the settings; in fact, they couldn't have been changed during the second handler execution exactly because we'd been on altstack all along. 64bit sigreturn on sparc treats any error from do_sigaltstack() as "SIGSEGV now"; we need to switch to the same semantics we are using on other architectures. Cc: stable@vger.kernel.org Signed-off-by: Al Viro Signed-off-by: David S. Miller diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c index 867de2f..689e1ba 100644 --- a/arch/sparc/kernel/signal_64.c +++ b/arch/sparc/kernel/signal_64.c @@ -295,9 +295,7 @@ void do_rt_sigreturn(struct pt_regs *regs) err |= restore_fpu_state(regs, fpu_save); err |= __copy_from_user(&set, &sf->mask, sizeof(sigset_t)); - err |= do_sigaltstack(&sf->stack, NULL, (unsigned long)sf); - - if (err) + if (err || do_sigaltstack(&sf->stack, NULL, (unsigned long)sf) == -EFAULT) goto segv; err |= __get_user(rwin_save, &sf->rwin_save); -- cgit v0.10.2 From c91cb7a75eaf65358aac5ea2b512ac60a9437ff4 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Fri, 16 Nov 2012 09:14:12 -0800 Subject: Input: mousedev - move /dev/input/mice to the correct minor When doing conversion to dynamic input numbers I inadvertently moved /dev/input/mice from c,13,63 to c,13,31. We need to fix this so that setups with statically populated /dev continue working. Tested-by: Krzysztof Mazur Tested-by: Pavel Machek Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c index 8f02e3d..4c842c3 100644 --- a/drivers/input/mousedev.c +++ b/drivers/input/mousedev.c @@ -12,8 +12,8 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #define MOUSEDEV_MINOR_BASE 32 -#define MOUSEDEV_MINORS 32 -#define MOUSEDEV_MIX 31 +#define MOUSEDEV_MINORS 31 +#define MOUSEDEV_MIX 63 #include #include -- cgit v0.10.2 From e37212aa5df1937bc19c0d0982d216675020a7ca Mon Sep 17 00:00:00 2001 From: "Lad, Prabhakar" Date: Wed, 3 Oct 2012 12:05:00 +0530 Subject: ARM: davinci: dm644x: fix out range signal for ED Fix the video clock setting when custom timings are used with pclock <= 27MHz. Existing video clock selection uses PLL2 mode which results in a 54MHz clock whereas using the MXI mode results in a 27MHz clock (which is the one actually desired). This bug affects the Enhanced Definition (ED) support on DM644x. Without this patch, out-range signals errors are were observed on the TV when viewing ED. An out-of-range signal is often caused when the field rate is above the rate that the television will handle. Signed-off-by: Lad, Prabhakar Signed-off-by: Manjunath Hadli Cc: Sekhar Nori [nsekhar@ti.com: reword commit message based on on-list discussion] Signed-off-by: Sekhar Nori diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c index cd0c8b1..14e9947 100644 --- a/arch/arm/mach-davinci/dm644x.c +++ b/arch/arm/mach-davinci/dm644x.c @@ -713,8 +713,7 @@ static int dm644x_venc_setup_clock(enum vpbe_enc_timings_type type, break; case VPBE_ENC_CUSTOM_TIMINGS: if (pclock <= 27000000) { - v |= DM644X_VPSS_MUXSEL_PLL2_MODE | - DM644X_VPSS_DACCLKEN; + v |= DM644X_VPSS_DACCLKEN; writel(v, DAVINCI_SYSMOD_VIRT(SYSMOD_VPSS_CLKCTL)); } else { /* -- cgit v0.10.2 From c415187b689842e8bb85135c070c822c2505f805 Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Mon, 19 Nov 2012 10:40:15 +0530 Subject: OMAPFB: Fix possible null pointer dereferencing Commit 952cbaaa9b8beacc425f9aedf370468cbb737a2c (OMAPFB: Change dssdev->manager references) added checks for OMAPFB_WAITFORVSYNC ioctl to verify that the display, output and overlay manager exist. However, the code erroneously uses && for each part, which means that OMAPFB_WAITFORVSYNC may crash the kernel if no display, output or manager is associated with the framebuffer. This patch fixes the issue by using ||. Signed-off-by: Tushar Behera Signed-off-by: Tomi Valkeinen diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c index 606b89f..d630b26 100644 --- a/drivers/video/omap2/omapfb/omapfb-ioctl.c +++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c @@ -787,7 +787,7 @@ int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg) case OMAPFB_WAITFORVSYNC: DBG("ioctl WAITFORVSYNC\n"); - if (!display && !display->output && !display->output->manager) { + if (!display || !display->output || !display->output->manager) { r = -EINVAL; break; } -- cgit v0.10.2 From 963f2076e3b4d62e219b3fa60de7b50e335f5783 Mon Sep 17 00:00:00 2001 From: Abhilash Kesavan Date: Mon, 19 Nov 2012 15:48:46 +0530 Subject: i2c: s3c2410: Fix code to free gpios Store the requested gpios so that they can be freed on error/removal. Signed-off-by: Abhilash Kesavan Signed-off-by: Wolfram Sang diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index 3e0335f..9d90272 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -806,6 +806,7 @@ static int s3c24xx_i2c_parse_dt_gpio(struct s3c24xx_i2c *i2c) dev_err(i2c->dev, "invalid gpio[%d]: %d\n", idx, gpio); goto free_gpio; } + i2c->gpios[idx] = gpio; ret = gpio_request(gpio, "i2c-bus"); if (ret) { -- cgit v0.10.2 From 989c3187156ad197ae473fa9d9d506eef9624f12 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 19 Nov 2012 14:14:58 +0100 Subject: ALSA: hda - Fix recursive suspend/resume call When the bus reset is performed during the suspend/resume (including the power-saving too), it calls snd_hda_suspend() and snd_hda_resume() again, and deadlocks eventually. For avoiding the recursive call, add a new flag indicating that the PM is being performed, and don't go to the bus reset mode when it's on. Reported-and-tested-by: Julian Wollrath Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 70d4848..cebe2dfd 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -228,7 +228,7 @@ static int codec_exec_verb(struct hda_codec *codec, unsigned int cmd, } mutex_unlock(&bus->cmd_mutex); snd_hda_power_down(codec); - if (res && *res == -1 && bus->rirb_error) { + if (!codec->in_pm && res && *res == -1 && bus->rirb_error) { if (bus->response_reset) { snd_printd("hda_codec: resetting BUS due to " "fatal communication error\n"); @@ -238,7 +238,7 @@ static int codec_exec_verb(struct hda_codec *codec, unsigned int cmd, goto again; } /* clear reset-flag when the communication gets recovered */ - if (!err) + if (!err || codec->in_pm) bus->response_reset = 0; return err; } @@ -3616,6 +3616,8 @@ static unsigned int hda_call_codec_suspend(struct hda_codec *codec, bool in_wq) { unsigned int state; + codec->in_pm = 1; + if (codec->patch_ops.suspend) codec->patch_ops.suspend(codec); hda_cleanup_all_streams(codec); @@ -3630,6 +3632,7 @@ static unsigned int hda_call_codec_suspend(struct hda_codec *codec, bool in_wq) codec->power_transition = 0; codec->power_jiffies = jiffies; spin_unlock(&codec->power_lock); + codec->in_pm = 0; return state; } @@ -3638,6 +3641,8 @@ static unsigned int hda_call_codec_suspend(struct hda_codec *codec, bool in_wq) */ static void hda_call_codec_resume(struct hda_codec *codec) { + codec->in_pm = 1; + /* set as if powered on for avoiding re-entering the resume * in the resume / power-save sequence */ @@ -3656,6 +3661,8 @@ static void hda_call_codec_resume(struct hda_codec *codec) snd_hda_codec_resume_cache(codec); } snd_hda_jack_report_sync(codec); + + codec->in_pm = 0; snd_hda_power_down(codec); /* flag down before returning */ } #endif /* CONFIG_PM */ diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 507fe8a..4f4e545 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -869,6 +869,7 @@ struct hda_codec { unsigned int power_on :1; /* current (global) power-state */ unsigned int d3_stop_clk:1; /* support D3 operation without BCLK */ unsigned int pm_down_notified:1; /* PM notified to controller */ + unsigned int in_pm:1; /* suspend/resume being performed */ int power_transition; /* power-state in transition */ int power_count; /* current (global) power refcount */ struct delayed_work power_work; /* delayed task for powerdown */ -- cgit v0.10.2 From da8fb123b041e487d28f54d3a77a15139cb9e3b9 Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Sat, 17 Nov 2012 21:20:50 +0530 Subject: ath9k_hw: Fix regression in device reset Commit "ath9k: improve suspend/resume reliability" broke ath9k_htc and bringing up the device would hang indefinitely. Fix this. Cc: stable@vger.kernel.org Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 8e1559a..1829b44 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -1456,7 +1456,7 @@ static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type) switch (type) { case ATH9K_RESET_POWER_ON: ret = ath9k_hw_set_reset_power_on(ah); - if (!ret) + if (ret) ah->reset_power_on = true; break; case ATH9K_RESET_WARM: -- cgit v0.10.2 From 2ea3c6a2c779e5a6487d2b436770232162dfbbe3 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 19 Nov 2012 20:03:37 +0100 Subject: ALSA: hda - Limit runtime PM support only to known Intel chips We've got a report that the runtime PM may make the codec the unresponsive on AMD platforms. Since the feature has been tested only on the recent Intel platforms, it's safer to limit the support to such devices for now. This patch adds a new DCAPS bit flag indicating the runtime PM support, and mark it for Intel controllers. Reported-and-tested-by: Julian Wollrath Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index cd2dbaf..f9d870e 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -556,6 +556,12 @@ enum { #define AZX_DCAPS_ALIGN_BUFSIZE (1 << 22) /* buffer size alignment */ #define AZX_DCAPS_4K_BDLE_BOUNDARY (1 << 23) /* BDLE in 4k boundary */ #define AZX_DCAPS_COUNT_LPIB_DELAY (1 << 25) /* Take LPIB as delay */ +#define AZX_DCAPS_PM_RUNTIME (1 << 26) /* runtime PM support */ + +/* quirks for Intel PCH */ +#define AZX_DCAPS_INTEL_PCH \ + (AZX_DCAPS_SCH_SNOOP | AZX_DCAPS_BUFSIZE | \ + AZX_DCAPS_COUNT_LPIB_DELAY | AZX_DCAPS_PM_RUNTIME) /* quirks for ATI SB / AMD Hudson */ #define AZX_DCAPS_PRESET_ATI_SB \ @@ -2433,6 +2439,9 @@ static void azx_power_notify(struct hda_bus *bus, bool power_up) { struct azx *chip = bus->private_data; + if (!(chip->driver_caps & AZX_DCAPS_PM_RUNTIME)) + return; + if (power_up) pm_runtime_get_sync(&chip->pci->dev); else @@ -2548,7 +2557,8 @@ static int azx_runtime_suspend(struct device *dev) struct snd_card *card = dev_get_drvdata(dev); struct azx *chip = card->private_data; - if (!power_save_controller) + if (!power_save_controller || + !(chip->driver_caps & AZX_DCAPS_PM_RUNTIME)) return -EAGAIN; azx_stop_chip(chip); @@ -3429,39 +3439,30 @@ static void __devexit azx_remove(struct pci_dev *pci) static DEFINE_PCI_DEVICE_TABLE(azx_ids) = { /* CPT */ { PCI_DEVICE(0x8086, 0x1c20), - .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP | - AZX_DCAPS_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY }, + .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH }, /* PBG */ { PCI_DEVICE(0x8086, 0x1d20), - .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP | - AZX_DCAPS_BUFSIZE}, + .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH }, /* Panther Point */ { PCI_DEVICE(0x8086, 0x1e20), - .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP | - AZX_DCAPS_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY }, + .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH }, /* Lynx Point */ { PCI_DEVICE(0x8086, 0x8c20), - .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP | - AZX_DCAPS_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY }, + .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH }, /* Lynx Point-LP */ { PCI_DEVICE(0x8086, 0x9c20), - .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP | - AZX_DCAPS_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY }, + .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH }, /* Lynx Point-LP */ { PCI_DEVICE(0x8086, 0x9c21), - .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP | - AZX_DCAPS_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY }, + .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH }, /* Haswell */ { PCI_DEVICE(0x8086, 0x0c0c), - .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_SCH_SNOOP | - AZX_DCAPS_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY }, + .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH }, { PCI_DEVICE(0x8086, 0x0d0c), - .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_SCH_SNOOP | - AZX_DCAPS_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY }, + .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH }, /* 5 Series/3400 */ { PCI_DEVICE(0x8086, 0x3b56), - .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_SCH_SNOOP | - AZX_DCAPS_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY }, + .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH }, /* SCH */ { PCI_DEVICE(0x8086, 0x811b), .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_SCH_SNOOP | -- cgit v0.10.2 From 3bb3e1fc47aca554e7e2cc4deeddc24750987ac2 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 13 Nov 2012 14:55:52 +0100 Subject: reiserfs: Fix lock ordering during remount When remounting reiserfs dquot_suspend() or dquot_resume() can be called. These functions take dqonoff_mutex which ranks above write lock so we have to drop it before calling into quota code. CC: stable@vger.kernel.org # >= 3.0 Signed-off-by: Jan Kara diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index 1078ae1..5372980 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -1335,7 +1335,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg) kfree(qf_names[i]); #endif err = -EINVAL; - goto out_err; + goto out_unlock; } #ifdef CONFIG_QUOTA handle_quota_files(s, qf_names, &qfmt); @@ -1379,7 +1379,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg) if (blocks) { err = reiserfs_resize(s, blocks); if (err != 0) - goto out_err; + goto out_unlock; } if (*mount_flags & MS_RDONLY) { @@ -1389,9 +1389,15 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg) /* it is read-only already */ goto out_ok; + /* + * Drop write lock. Quota will retake it when needed and lock + * ordering requires calling dquot_suspend() without it. + */ + reiserfs_write_unlock(s); err = dquot_suspend(s, -1); if (err < 0) goto out_err; + reiserfs_write_lock(s); /* try to remount file system with read-only permissions */ if (sb_umount_state(rs) == REISERFS_VALID_FS @@ -1401,7 +1407,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg) err = journal_begin(&th, s, 10); if (err) - goto out_err; + goto out_unlock; /* Mounting a rw partition read-only. */ reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1); @@ -1416,7 +1422,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg) if (reiserfs_is_journal_aborted(journal)) { err = journal->j_errno; - goto out_err; + goto out_unlock; } handle_data_mode(s, mount_options); @@ -1425,7 +1431,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg) s->s_flags &= ~MS_RDONLY; /* now it is safe to call journal_begin */ err = journal_begin(&th, s, 10); if (err) - goto out_err; + goto out_unlock; /* Mount a partition which is read-only, read-write */ reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1); @@ -1442,10 +1448,16 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg) SB_JOURNAL(s)->j_must_wait = 1; err = journal_end(&th, s, 10); if (err) - goto out_err; + goto out_unlock; if (!(*mount_flags & MS_RDONLY)) { + /* + * Drop write lock. Quota will retake it when needed and lock + * ordering requires calling dquot_resume() without it. + */ + reiserfs_write_unlock(s); dquot_resume(s, -1); + reiserfs_write_lock(s); finish_unfinished(s); reiserfs_xattr_init(s, *mount_flags); } @@ -1455,9 +1467,10 @@ out_ok: reiserfs_write_unlock(s); return 0; +out_unlock: + reiserfs_write_unlock(s); out_err: kfree(new_opts); - reiserfs_write_unlock(s); return err; } -- cgit v0.10.2 From b9e06ef2e8706fe669b51f4364e3aeed58639eb2 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 13 Nov 2012 16:34:17 +0100 Subject: reiserfs: Protect reiserfs_quota_on() with write lock In reiserfs_quota_on() we do quite some work - for example unpacking tail of a quota file. Thus we have to hold write lock until a moment we call back into the quota code. CC: stable@vger.kernel.org # >= 3.0 Signed-off-by: Jan Kara diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index 5372980..e59d6dd 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -2216,8 +2216,11 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id, struct reiserfs_transaction_handle th; int opt = type == USRQUOTA ? REISERFS_USRQUOTA : REISERFS_GRPQUOTA; - if (!(REISERFS_SB(sb)->s_mount_opt & (1 << opt))) - return -EINVAL; + reiserfs_write_lock(sb); + if (!(REISERFS_SB(sb)->s_mount_opt & (1 << opt))) { + err = -EINVAL; + goto out; + } /* Quotafile not on the same filesystem? */ if (path->dentry->d_sb != sb) { @@ -2259,8 +2262,10 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id, if (err) goto out; } - err = dquot_quota_on(sb, type, format_id, path); + reiserfs_write_unlock(sb); + return dquot_quota_on(sb, type, format_id, path); out: + reiserfs_write_unlock(sb); return err; } -- cgit v0.10.2 From 361d94a338a3fd0cee6a4ea32bbc427ba228e628 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 13 Nov 2012 18:25:38 +0100 Subject: reiserfs: Protect reiserfs_quota_write() with write lock Calls into reiserfs journalling code and reiserfs_get_block() need to be protected with write lock. We remove write lock around calls to high level quota code in the next patch so these paths would suddently become unprotected. CC: stable@vger.kernel.org # >= 3.0 Signed-off-by: Jan Kara diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index e59d6dd..c101704 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -2338,7 +2338,9 @@ static ssize_t reiserfs_quota_write(struct super_block *sb, int type, tocopy = sb->s_blocksize - offset < towrite ? sb->s_blocksize - offset : towrite; tmp_bh.b_state = 0; + reiserfs_write_lock(sb); err = reiserfs_get_block(inode, blk, &tmp_bh, GET_BLOCK_CREATE); + reiserfs_write_unlock(sb); if (err) goto out; if (offset || tocopy != sb->s_blocksize) @@ -2354,10 +2356,12 @@ static ssize_t reiserfs_quota_write(struct super_block *sb, int type, flush_dcache_page(bh->b_page); set_buffer_uptodate(bh); unlock_buffer(bh); + reiserfs_write_lock(sb); reiserfs_prepare_for_journal(sb, bh, 1); journal_mark_dirty(current->journal_info, sb, bh); if (!journal_quota) reiserfs_add_ordered_list(inode, bh); + reiserfs_write_unlock(sb); brelse(bh); offset = 0; towrite -= tocopy; -- cgit v0.10.2 From 7af11686933726e99af22901d622f9e161404e6b Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 13 Nov 2012 17:05:14 +0100 Subject: reiserfs: Move quota calls out of write lock Calls into highlevel quota code cannot happen under the write lock. These calls take dqio_mutex which ranks above write lock. So drop write lock before calling back into quota code. CC: stable@vger.kernel.org # >= 3.0 Signed-off-by: Jan Kara diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index f27f01a..d83736f 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -1782,8 +1782,9 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th, BUG_ON(!th->t_trans_id); - dquot_initialize(inode); + reiserfs_write_unlock(inode->i_sb); err = dquot_alloc_inode(inode); + reiserfs_write_lock(inode->i_sb); if (err) goto out_end_trans; if (!dir->i_nlink) { @@ -1979,8 +1980,10 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th, out_end_trans: journal_end(th, th->t_super, th->t_blocks_allocated); + reiserfs_write_unlock(inode->i_sb); /* Drop can be outside and it needs more credits so it's better to have it outside */ dquot_drop(inode); + reiserfs_write_lock(inode->i_sb); inode->i_flags |= S_NOQUOTA; make_bad_inode(inode); @@ -3103,10 +3106,9 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) /* must be turned off for recursive notify_change calls */ ia_valid = attr->ia_valid &= ~(ATTR_KILL_SUID|ATTR_KILL_SGID); - depth = reiserfs_write_lock_once(inode->i_sb); if (is_quota_modification(inode, attr)) dquot_initialize(inode); - + depth = reiserfs_write_lock_once(inode->i_sb); if (attr->ia_valid & ATTR_SIZE) { /* version 2 items will be caught by the s_maxbytes check ** done for us in vmtruncate @@ -3170,7 +3172,9 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) error = journal_begin(&th, inode->i_sb, jbegin_count); if (error) goto out; + reiserfs_write_unlock_once(inode->i_sb, depth); error = dquot_transfer(inode, attr); + depth = reiserfs_write_lock_once(inode->i_sb); if (error) { journal_end(&th, inode->i_sb, jbegin_count); goto out; diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c index f8afa4b..2f40a4c 100644 --- a/fs/reiserfs/stree.c +++ b/fs/reiserfs/stree.c @@ -1968,7 +1968,9 @@ int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, struct tree key2type(&(key->on_disk_key))); #endif + reiserfs_write_unlock(inode->i_sb); retval = dquot_alloc_space_nodirty(inode, pasted_size); + reiserfs_write_lock(inode->i_sb); if (retval) { pathrelse(search_path); return retval; @@ -2061,9 +2063,11 @@ int reiserfs_insert_item(struct reiserfs_transaction_handle *th, "reiserquota insert_item(): allocating %u id=%u type=%c", quota_bytes, inode->i_uid, head2type(ih)); #endif + reiserfs_write_unlock(inode->i_sb); /* We can't dirty inode here. It would be immediately written but * appropriate stat item isn't inserted yet... */ retval = dquot_alloc_space_nodirty(inode, quota_bytes); + reiserfs_write_lock(inode->i_sb); if (retval) { pathrelse(path); return retval; diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index c101704..418bdc3 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -298,7 +298,9 @@ static int finish_unfinished(struct super_block *s) retval = remove_save_link_only(s, &save_link_key, 0); continue; } + reiserfs_write_unlock(s); dquot_initialize(inode); + reiserfs_write_lock(s); if (truncate && S_ISDIR(inode->i_mode)) { /* We got a truncate request for a dir which is impossible. @@ -2108,13 +2110,15 @@ static int reiserfs_write_dquot(struct dquot *dquot) REISERFS_QUOTA_TRANS_BLOCKS(dquot->dq_sb)); if (ret) goto out; + reiserfs_write_unlock(dquot->dq_sb); ret = dquot_commit(dquot); + reiserfs_write_lock(dquot->dq_sb); err = journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_TRANS_BLOCKS(dquot->dq_sb)); if (!ret && err) ret = err; - out: +out: reiserfs_write_unlock(dquot->dq_sb); return ret; } @@ -2130,13 +2134,15 @@ static int reiserfs_acquire_dquot(struct dquot *dquot) REISERFS_QUOTA_INIT_BLOCKS(dquot->dq_sb)); if (ret) goto out; + reiserfs_write_unlock(dquot->dq_sb); ret = dquot_acquire(dquot); + reiserfs_write_lock(dquot->dq_sb); err = journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_INIT_BLOCKS(dquot->dq_sb)); if (!ret && err) ret = err; - out: +out: reiserfs_write_unlock(dquot->dq_sb); return ret; } @@ -2150,19 +2156,21 @@ static int reiserfs_release_dquot(struct dquot *dquot) ret = journal_begin(&th, dquot->dq_sb, REISERFS_QUOTA_DEL_BLOCKS(dquot->dq_sb)); + reiserfs_write_unlock(dquot->dq_sb); if (ret) { /* Release dquot anyway to avoid endless cycle in dqput() */ dquot_release(dquot); goto out; } ret = dquot_release(dquot); + reiserfs_write_lock(dquot->dq_sb); err = journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_DEL_BLOCKS(dquot->dq_sb)); if (!ret && err) ret = err; - out: reiserfs_write_unlock(dquot->dq_sb); +out: return ret; } @@ -2187,11 +2195,13 @@ static int reiserfs_write_info(struct super_block *sb, int type) ret = journal_begin(&th, sb, 2); if (ret) goto out; + reiserfs_write_unlock(sb); ret = dquot_commit_info(sb, type); + reiserfs_write_lock(sb); err = journal_end(&th, sb, 2); if (!ret && err) ret = err; - out: +out: reiserfs_write_unlock(sb); return ret; } -- cgit v0.10.2 From ae49eeec785025373e28dc24c8351c6bba688d99 Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Thu, 11 Oct 2012 12:28:38 +0200 Subject: ext3: Avoid underflow of in ext3_trim_fs() Currently if len argument in ext3_trim_fs() is smaller than one block, the 'end' variable underflow. Avoid that by returning EINVAL if len is smaller than file system block. Also remove useless unlikely(). Signed-off-by: Lukas Czerner Signed-off-by: Jan Kara diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c index 7320a66..22548f5 100644 --- a/fs/ext3/balloc.c +++ b/fs/ext3/balloc.c @@ -2101,8 +2101,9 @@ int ext3_trim_fs(struct super_block *sb, struct fstrim_range *range) end = start + (range->len >> sb->s_blocksize_bits) - 1; minlen = range->minlen >> sb->s_blocksize_bits; - if (unlikely(minlen > EXT3_BLOCKS_PER_GROUP(sb)) || - unlikely(start >= max_blks)) + if (minlen > EXT3_BLOCKS_PER_GROUP(sb) || + start >= max_blks || + range->len < sb->s_blocksize) return -EINVAL; if (end >= max_blks) end = max_blks - 1; -- cgit v0.10.2 From ca9dfc6cc45a8ae0297188f5fed23af242cc8a8d Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 5 Nov 2012 15:15:24 +0000 Subject: tools: Define a Makefile function to do subdir processing Define a Makefile function that can be called with $(call ...) to wrap the subdir make invocations in tools/Makefile. This will allow us in the next patch to insert bits in there to honour O= flags when called from the top-level Makefile. Signed-off-by: David Howells Cc: Borislav Petkov Cc: Ingo Molnar Cc: Linus Torvalds Cc: Namhyung Kim Cc: Paul Mackerras Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1378.1352379110@warthog.procyon.org.uk Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/Makefile b/tools/Makefile index 3ae4394..1f9a529 100644 --- a/tools/Makefile +++ b/tools/Makefile @@ -31,44 +31,44 @@ help: @echo ' clean: a summary clean target to clean _all_ folders' cpupower: FORCE - $(QUIET_SUBDIR0)power/$@/ $(QUIET_SUBDIR1) + $(call descend,power/$@) firewire lguest perf usb virtio vm: FORCE - $(QUIET_SUBDIR0)$@/ $(QUIET_SUBDIR1) + $(call descend,$@) selftests: FORCE - $(QUIET_SUBDIR0)testing/$@/ $(QUIET_SUBDIR1) + $(call descend,testing/$@) turbostat x86_energy_perf_policy: FORCE - $(QUIET_SUBDIR0)power/x86/$@/ $(QUIET_SUBDIR1) + $(call descend,power/x86/$@) cpupower_install: - $(QUIET_SUBDIR0)power/$(@:_install=)/ $(QUIET_SUBDIR1) install + $(call descend,power/$(@:_install=),install) firewire_install lguest_install perf_install usb_install virtio_install vm_install: - $(QUIET_SUBDIR0)$(@:_install=)/ $(QUIET_SUBDIR1) install + $(call descend,$(@:_install=),install) selftests_install: - $(QUIET_SUBDIR0)testing/$(@:_clean=)/ $(QUIET_SUBDIR1) install + $(call descend,testing/$(@:_clean=),install) turbostat_install x86_energy_perf_policy_install: - $(QUIET_SUBDIR0)power/x86/$(@:_install=)/ $(QUIET_SUBDIR1) install + $(call descend,power/x86/$(@:_install=),install) install: cpupower_install firewire_install lguest_install perf_install \ selftests_install turbostat_install usb_install virtio_install \ vm_install x86_energy_perf_policy_install cpupower_clean: - $(QUIET_SUBDIR0)power/cpupower/ $(QUIET_SUBDIR1) clean + $(call descend,power/cpupower,clean) firewire_clean lguest_clean perf_clean usb_clean virtio_clean vm_clean: - $(QUIET_SUBDIR0)$(@:_clean=)/ $(QUIET_SUBDIR1) clean + $(call descend,$(@:_clean=),clean) selftests_clean: - $(QUIET_SUBDIR0)testing/$(@:_clean=)/ $(QUIET_SUBDIR1) clean + $(call descend,testing/$(@:_clean=),clean) turbostat_clean x86_energy_perf_policy_clean: - $(QUIET_SUBDIR0)power/x86/$(@:_clean=)/ $(QUIET_SUBDIR1) clean + $(call descend,power/x86/$(@:_clean=),clean) clean: cpupower_clean firewire_clean lguest_clean perf_clean selftests_clean \ turbostat_clean usb_clean virtio_clean vm_clean \ diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include index 96ce80a..4a9e317 100644 --- a/tools/scripts/Makefile.include +++ b/tools/scripts/Makefile.include @@ -41,6 +41,14 @@ else NO_SUBDIR = : endif +# +# Define a callable command for descending to a new directory +# +# Call by doing: $(call descend,directory[,target]) +# +descend = \ + $(QUIET_SUBDIR0)$(1) $(QUIET_SUBDIR1) $(2) + QUIET_SUBDIR0 = +$(MAKE) -C # space to separate -C and subdir QUIET_SUBDIR1 = -- cgit v0.10.2 From bf35182ffcd00d8b36d56210ffdac110e5624d7d Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 5 Nov 2012 21:02:08 +0000 Subject: tools: Honour the O= flag when tool build called from a higher Makefile Honour the O= flag that was passed to a higher level Makefile and then passed down as part of a tool build. To make this work, the top-level Makefile passes the original O= flag and subdir=tools to the tools/Makefile, and that in turn passes subdir=$(O)/$(subdir)/foodir when building tool foo in directory $(O)/$(subdir)/foodir (where the intervening slashes aren't added if an element is missing). For example, take perf. This is found in tools/perf/. Assume we're building into directory ~/zebra/, so we pass O=~/zebra to make. Dependening on where we run the build from, we see: make run in dir $(OUTPUT) dir ======================= ================== linux ~/zebra/tools/perf/ linux/tools ~/zebra/perf/ linux/tools/perf ~/zebra/ and if O= is not set, we get: make run in dir $(OUTPUT) dir ======================= ================== linux linux/tools/perf/ linux/tools linux/tools/perf/ linux/tools/perf linux/tools/perf/ The output directories are created by the descend function if they don't already exist. Signed-off-by: David Howells Cc: Borislav Petkov Cc: Ingo Molnar Cc: Linus Torvalds Cc: Namhyung Kim Cc: Paul Mackerras Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1378.1352379110@warthog.procyon.org.uk Signed-off-by: Arnaldo Carvalho de Melo diff --git a/Makefile b/Makefile index 42d0e56..71dc31e 100644 --- a/Makefile +++ b/Makefile @@ -1321,10 +1321,12 @@ kernelversion: # Clear a bunch of variables before executing the submake tools/: FORCE - $(Q)$(MAKE) LDFLAGS= MAKEFLAGS= -C $(src)/tools/ + $(Q)mkdir -p $(objtree)/tools + $(Q)$(MAKE) LDFLAGS= MAKEFLAGS= O=$(objtree) subdir=tools -C $(src)/tools/ tools/%: FORCE - $(Q)$(MAKE) LDFLAGS= MAKEFLAGS= -C $(src)/tools/ $* + $(Q)mkdir -p $(objtree)/tools + $(Q)$(MAKE) LDFLAGS= MAKEFLAGS= O=$(objtree) subdir=tools -C $(src)/tools/ $* # Single targets # --------------------------------------------------------------------------- diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include index 4a9e317..87467b1 100644 --- a/tools/scripts/Makefile.include +++ b/tools/scripts/Makefile.include @@ -1,8 +1,11 @@ -ifeq ("$(origin O)", "command line") +ifeq ($(origin O), command line) dummy := $(if $(shell test -d $(O) || echo $(O)),$(error O=$(O) does not exist),) ABSOLUTE_O := $(shell cd $(O) ; pwd) - OUTPUT := $(ABSOLUTE_O)/ + OUTPUT := $(ABSOLUTE_O)/$(if $(subdir),$(subdir)/) COMMAND_O := O=$(ABSOLUTE_O) +ifeq ($(objtree),) + objtree := $(O) +endif endif ifneq ($(OUTPUT),) @@ -47,9 +50,10 @@ endif # Call by doing: $(call descend,directory[,target]) # descend = \ - $(QUIET_SUBDIR0)$(1) $(QUIET_SUBDIR1) $(2) + +mkdir -p $(OUTPUT)$(1) && \ + $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) -QUIET_SUBDIR0 = +$(MAKE) -C # space to separate -C and subdir +QUIET_SUBDIR0 = +$(MAKE) $(COMMAND_O) -C # space to separate -C and subdir QUIET_SUBDIR1 = ifneq ($(findstring $(MAKEFLAGS),s),s) @@ -64,5 +68,10 @@ ifndef V $(MAKE) $(PRINT_DIR) -C $$subdir QUIET_FLEX = @echo ' ' FLEX $@; QUIET_BISON = @echo ' ' BISON $@; + + descend = \ + @echo ' ' DESCEND $(1); \ + mkdir -p $(OUTPUT)$(1) && \ + $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) endif endif -- cgit v0.10.2 From 2b73f65d114b44b9bc9bd7d229f603e4cd5c1a88 Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 13 Nov 2012 14:14:38 -0300 Subject: tools: Pass the target in descend MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fixing: [acme@sandy linux]$ cd tools [acme@sandy tools]$ make clean DESCEND power/cpupower CC lib/cpufreq.o CC lib/sysfs.o LD libcpupower.so.0.0.0 CC utils/helpers/amd.o utils/helpers/amd.c:7:21: error: pci/pci.h: No such file or directory In file included from utils/helpers/amd.c:9: ./utils/helpers/helpers.h:137: warning: ‘struct pci_access’ declared inside parameter list ./utils/helpers/helpers.h:137: warning: its scope is only this definition or declaration, which is probably not what you want ./utils/helpers/helpers.h:139: warning: ‘struct pci_access’ declared inside parameter list utils/helpers/amd.c: In function ‘amd_pci_get_num_boost_states’: utils/helpers/amd.c:120: warning: passing argument 1 of ‘pci_slot_func_init’ from incompatible pointer type ./utils/helpers/helpers.h:138: note: expected ‘struct pci_access **’ but argument is of type ‘struct pci_access **’ utils/helpers/amd.c:125: warning: implicit declaration of function ‘pci_read_byte’ utils/helpers/amd.c:132: warning: implicit declaration of function ‘pci_cleanup’ make[1]: *** [utils/helpers/amd.o] Error 1 make: *** [cpupower_clean] Error 2 [acme@sandy tools]$ Reported-by: Arnaldo Carvalho de Melo Signed-off-by: David Howells Cc: Borislav Petkov Cc: Ingo Molnar Cc: Linus Torvalds Cc: Namhyung Kim Cc: Paul Mackerras Cc: Thomas Gleixner Link: http://lkml.kernel.org/n/tip-tviyimq6x6nm77sj5lt4t19f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include index 87467b1..2964b96 100644 --- a/tools/scripts/Makefile.include +++ b/tools/scripts/Makefile.include @@ -51,7 +51,7 @@ endif # descend = \ +mkdir -p $(OUTPUT)$(1) && \ - $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) + $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2) QUIET_SUBDIR0 = +$(MAKE) $(COMMAND_O) -C # space to separate -C and subdir QUIET_SUBDIR1 = @@ -72,6 +72,6 @@ ifndef V descend = \ @echo ' ' DESCEND $(1); \ mkdir -p $(OUTPUT)$(1) && \ - $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) + $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2) endif endif -- cgit v0.10.2 From f2d9cae9ea9e0228f6eb4d4c5ab4f548d0270d1a Mon Sep 17 00:00:00 2001 From: Sukadev Bhattiprolu Date: Wed, 31 Oct 2012 11:21:28 -0700 Subject: perf powerpc: Use uapi/unistd.h to fix build error Use the 'unistd.h' from arch/powerpc/include/uapi to build the perf tool. Signed-off-by: Sukadev Bhattiprolu Acked-by: David Howells Cc: Anton Blanchard Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Robert Richter Cc: linuxppc-dev@ozlabs.org Link: http://lkml.kernel.org/r/20121107191818.GA16211@us.ibm.com Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/perf.h b/tools/perf/perf.h index c50985e..e2ba8f0 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -26,7 +26,7 @@ void get_term_dimensions(struct winsize *ws); #endif #ifdef __powerpc__ -#include "../../arch/powerpc/include/asm/unistd.h" +#include "../../arch/powerpc/include/uapi/asm/unistd.h" #define rmb() asm volatile ("sync" ::: "memory") #define cpu_relax() asm volatile ("" ::: "memory"); #define CPUINFO_PROC "cpu" -- cgit v0.10.2 From d2709c7ce4c513ab7f4ca9a106a930621811f2d3 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 19 Nov 2012 22:21:03 +0000 Subject: perf: Make perf build for x86 with UAPI disintegration applied Make perf build for x86 once the UAPI disintegration patches for that arch have been applied by adding the appropriate -I flags - in the right order - and then converting some #includes that use ../.. notation to find main kernel headerfiles to use and instead. Note that -Iarch/foo/include/uapi is present _before_ -Iarch/foo/include. This makes sure we get the userspace version of the pt_regs struct. Ideally, we wouldn't have the latter -I flag at all, but unfortunately we want asm/svm.h and asm/vmx.h in builtin-kvm.c and these aren't part of the UAPI - at least not for x86. I wonder if the bits outside of the __KERNEL__ guards *should* be transferred there. I note also that perf seems to do its dependency handling manually by listing all the header files it might want to use in LIB_H in the Makefile. Can this be changed to use -MD? Note that to do make this work, we need to export and UAPI disintegrate linux/hw_breakpoint.h, which I think should've been exported previously so that perf can access the bits. We have to do this in the same patch to maintain bisectability. Signed-off-by: David Howells diff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h index 6ae9c63..0464c85 100644 --- a/include/linux/hw_breakpoint.h +++ b/include/linux/hw_breakpoint.h @@ -1,35 +1,8 @@ #ifndef _LINUX_HW_BREAKPOINT_H #define _LINUX_HW_BREAKPOINT_H -enum { - HW_BREAKPOINT_LEN_1 = 1, - HW_BREAKPOINT_LEN_2 = 2, - HW_BREAKPOINT_LEN_4 = 4, - HW_BREAKPOINT_LEN_8 = 8, -}; - -enum { - HW_BREAKPOINT_EMPTY = 0, - HW_BREAKPOINT_R = 1, - HW_BREAKPOINT_W = 2, - HW_BREAKPOINT_RW = HW_BREAKPOINT_R | HW_BREAKPOINT_W, - HW_BREAKPOINT_X = 4, - HW_BREAKPOINT_INVALID = HW_BREAKPOINT_RW | HW_BREAKPOINT_X, -}; - -enum bp_type_idx { - TYPE_INST = 0, -#ifdef CONFIG_HAVE_MIXED_BREAKPOINTS_REGS - TYPE_DATA = 0, -#else - TYPE_DATA = 1, -#endif - TYPE_MAX -}; - -#ifdef __KERNEL__ - #include +#include #ifdef CONFIG_HAVE_HW_BREAKPOINT @@ -151,6 +124,4 @@ static inline struct arch_hw_breakpoint *counter_arch_bp(struct perf_event *bp) } #endif /* CONFIG_HAVE_HW_BREAKPOINT */ -#endif /* __KERNEL__ */ - #endif /* _LINUX_HW_BREAKPOINT_H */ diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild index e194387..19e765f 100644 --- a/include/uapi/linux/Kbuild +++ b/include/uapi/linux/Kbuild @@ -415,3 +415,4 @@ header-y += wireless.h header-y += x25.h header-y += xattr.h header-y += xfrm.h +header-y += hw_breakpoint.h diff --git a/include/uapi/linux/hw_breakpoint.h b/include/uapi/linux/hw_breakpoint.h new file mode 100644 index 0000000..b04000a --- /dev/null +++ b/include/uapi/linux/hw_breakpoint.h @@ -0,0 +1,30 @@ +#ifndef _UAPI_LINUX_HW_BREAKPOINT_H +#define _UAPI_LINUX_HW_BREAKPOINT_H + +enum { + HW_BREAKPOINT_LEN_1 = 1, + HW_BREAKPOINT_LEN_2 = 2, + HW_BREAKPOINT_LEN_4 = 4, + HW_BREAKPOINT_LEN_8 = 8, +}; + +enum { + HW_BREAKPOINT_EMPTY = 0, + HW_BREAKPOINT_R = 1, + HW_BREAKPOINT_W = 2, + HW_BREAKPOINT_RW = HW_BREAKPOINT_R | HW_BREAKPOINT_W, + HW_BREAKPOINT_X = 4, + HW_BREAKPOINT_INVALID = HW_BREAKPOINT_RW | HW_BREAKPOINT_X, +}; + +enum bp_type_idx { + TYPE_INST = 0, +#ifdef CONFIG_HAVE_MIXED_BREAKPOINTS_REGS + TYPE_DATA = 0, +#else + TYPE_DATA = 1, +#endif + TYPE_MAX +}; + +#endif /* _UAPI_LINUX_HW_BREAKPOINT_H */ diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 00deed4d..0a619af 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -169,7 +169,34 @@ endif ### --- END CONFIGURATION SECTION --- -BASIC_CFLAGS = -Iutil/include -Iarch/$(ARCH)/include -I$(OUTPUT)util -I$(TRACE_EVENT_DIR) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE +ifeq ($(srctree),) +srctree := $(patsubst %/,%,$(dir $(shell pwd))) +srctree := $(patsubst %/,%,$(dir $(srctree))) +#$(info Determined 'srctree' to be $(srctree)) +endif + +ifneq ($(objtree),) +#$(info Determined 'objtree' to be $(objtree)) +endif + +ifneq ($(OUTPUT),) +#$(info Determined 'OUTPUT' to be $(OUTPUT)) +endif + +BASIC_CFLAGS = \ + -Iutil/include \ + -Iarch/$(ARCH)/include \ + $(if $(objtree),-I$(objtree)/arch/$(ARCH)/include/generated/uapi) \ + -I$(srctree)/arch/$(ARCH)/include/uapi \ + -I$(srctree)/arch/$(ARCH)/include \ + $(if $(objtree),-I$(objtree)/include/generated/uapi) \ + -I$(srctree)/include/uapi \ + -I$(srctree)/include \ + -I$(OUTPUT)util \ + -Iutil \ + -I. \ + -I$(TRACE_EVENT_DIR) \ + -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE BASIC_LDFLAGS = # Guard against environment variables diff --git a/tools/perf/arch/x86/include/perf_regs.h b/tools/perf/arch/x86/include/perf_regs.h index 46fc9f1..7fcdcdb 100644 --- a/tools/perf/arch/x86/include/perf_regs.h +++ b/tools/perf/arch/x86/include/perf_regs.h @@ -3,7 +3,7 @@ #include #include "../../util/types.h" -#include "../../../../../arch/x86/include/asm/perf_regs.h" +#include #ifndef ARCH_X86_64 #define PERF_REGS_MASK ((1ULL << PERF_REG_X86_32_MAX) - 1) diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index 260abc5..e013bdb 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -22,9 +22,9 @@ #include #include -#include "../../arch/x86/include/asm/svm.h" -#include "../../arch/x86/include/asm/vmx.h" -#include "../../arch/x86/include/asm/kvm.h" +#include +#include +#include struct event_key { #define INVALID_KEY (~0ULL) diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c index 484f26c..5acd6e8 100644 --- a/tools/perf/builtin-test.c +++ b/tools/perf/builtin-test.c @@ -15,7 +15,7 @@ #include "util/thread_map.h" #include "util/pmu.h" #include "event-parse.h" -#include "../../include/linux/hw_breakpoint.h" +#include #include diff --git a/tools/perf/perf.h b/tools/perf/perf.h index e2ba8f0..238f923 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -5,8 +5,9 @@ struct winsize; void get_term_dimensions(struct winsize *ws); +#include + #if defined(__i386__) -#include "../../arch/x86/include/asm/unistd.h" #define rmb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory") #define cpu_relax() asm volatile("rep; nop" ::: "memory"); #define CPUINFO_PROC "model name" @@ -16,7 +17,6 @@ void get_term_dimensions(struct winsize *ws); #endif #if defined(__x86_64__) -#include "../../arch/x86/include/asm/unistd.h" #define rmb() asm volatile("lfence" ::: "memory") #define cpu_relax() asm volatile("rep; nop" ::: "memory"); #define CPUINFO_PROC "model name" @@ -26,20 +26,17 @@ void get_term_dimensions(struct winsize *ws); #endif #ifdef __powerpc__ -#include "../../arch/powerpc/include/uapi/asm/unistd.h" #define rmb() asm volatile ("sync" ::: "memory") #define cpu_relax() asm volatile ("" ::: "memory"); #define CPUINFO_PROC "cpu" #endif #ifdef __s390__ -#include "../../arch/s390/include/asm/unistd.h" #define rmb() asm volatile("bcr 15,0" ::: "memory") #define cpu_relax() asm volatile("" ::: "memory"); #endif #ifdef __sh__ -#include "../../arch/sh/include/asm/unistd.h" #if defined(__SH4A__) || defined(__SH5__) # define rmb() asm volatile("synco" ::: "memory") #else @@ -50,35 +47,30 @@ void get_term_dimensions(struct winsize *ws); #endif #ifdef __hppa__ -#include "../../arch/parisc/include/asm/unistd.h" #define rmb() asm volatile("" ::: "memory") #define cpu_relax() asm volatile("" ::: "memory"); #define CPUINFO_PROC "cpu" #endif #ifdef __sparc__ -#include "../../arch/sparc/include/uapi/asm/unistd.h" #define rmb() asm volatile("":::"memory") #define cpu_relax() asm volatile("":::"memory") #define CPUINFO_PROC "cpu" #endif #ifdef __alpha__ -#include "../../arch/alpha/include/asm/unistd.h" #define rmb() asm volatile("mb" ::: "memory") #define cpu_relax() asm volatile("" ::: "memory") #define CPUINFO_PROC "cpu model" #endif #ifdef __ia64__ -#include "../../arch/ia64/include/asm/unistd.h" #define rmb() asm volatile ("mf" ::: "memory") #define cpu_relax() asm volatile ("hint @pause" ::: "memory") #define CPUINFO_PROC "model name" #endif #ifdef __arm__ -#include "../../arch/arm/include/asm/unistd.h" /* * Use the __kuser_memory_barrier helper in the CPU helper page. See * arch/arm/kernel/entry-armv.S in the kernel source for details. @@ -89,13 +81,11 @@ void get_term_dimensions(struct winsize *ws); #endif #ifdef __aarch64__ -#include "../../arch/arm64/include/asm/unistd.h" #define rmb() asm volatile("dmb ld" ::: "memory") #define cpu_relax() asm volatile("yield" ::: "memory") #endif #ifdef __mips__ -#include "../../arch/mips/include/asm/unistd.h" #define rmb() asm volatile( \ ".set mips2\n\t" \ "sync\n\t" \ @@ -112,7 +102,7 @@ void get_term_dimensions(struct winsize *ws); #include #include -#include "../../include/uapi/linux/perf_event.h" +#include #include "util/types.h" #include diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 618d411..d144d46 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -18,8 +18,8 @@ #include "cpumap.h" #include "thread_map.h" #include "target.h" -#include "../../../include/linux/hw_breakpoint.h" -#include "../../../include/uapi/linux/perf_event.h" +#include +#include #include "perf_regs.h" #define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y)) diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index 6f94d6d..d99b476 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -3,7 +3,8 @@ #include #include -#include "../../../include/uapi/linux/perf_event.h" +#include +#include #include "types.h" #include "xyarray.h" #include "cgroup.h" diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h index 879d215..9bc0078 100644 --- a/tools/perf/util/header.h +++ b/tools/perf/util/header.h @@ -1,7 +1,7 @@ #ifndef __PERF_HEADER_H #define __PERF_HEADER_H -#include "../../../include/uapi/linux/perf_event.h" +#include #include #include #include "types.h" diff --git a/tools/perf/util/parse-events-test.c b/tools/perf/util/parse-events-test.c index 516ecd9..6ef213b 100644 --- a/tools/perf/util/parse-events-test.c +++ b/tools/perf/util/parse-events-test.c @@ -3,7 +3,7 @@ #include "evsel.h" #include "evlist.h" #include "sysfs.h" -#include "../../../include/linux/hw_breakpoint.h" +#include #define TEST_ASSERT_VAL(text, cond) \ do { \ diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 75c7b0f..6b6d03e 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -1,4 +1,4 @@ -#include "../../../include/linux/hw_breakpoint.h" +#include #include "util.h" #include "../perf.h" #include "evlist.h" diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index 839230c..2820c40 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -7,7 +7,7 @@ #include #include #include "types.h" -#include "../../../include/uapi/linux/perf_event.h" +#include #include "types.h" struct list_head; diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h index 39f3aba..fdeb8ac 100644 --- a/tools/perf/util/pmu.h +++ b/tools/perf/util/pmu.h @@ -2,7 +2,7 @@ #define __PMU_H #include -#include "../../../include/uapi/linux/perf_event.h" +#include enum { PERF_PMU_FORMAT_VALUE_CONFIG, diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h index dd64261..0eae00a 100644 --- a/tools/perf/util/session.h +++ b/tools/perf/util/session.h @@ -7,7 +7,7 @@ #include "symbol.h" #include "thread.h" #include -#include "../../../include/uapi/linux/perf_event.h" +#include struct sample_queue; struct ip_callchain; -- cgit v0.10.2 From 16a78e9fed5e8baa8480ae3413f4328c4537c599 Mon Sep 17 00:00:00 2001 From: Thierry Escande Date: Fri, 12 Oct 2012 15:25:43 +0200 Subject: NFC: Fix nfc_llcp_local chained list insertion list_add was called with swapped parameters Signed-off-by: Thierry Escande Signed-off-by: Samuel Ortiz diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c index cc10d07..9e8f4b2 100644 --- a/net/nfc/llcp/llcp.c +++ b/net/nfc/llcp/llcp.c @@ -1210,7 +1210,7 @@ int nfc_llcp_register_device(struct nfc_dev *ndev) local->remote_miu = LLCP_DEFAULT_MIU; local->remote_lto = LLCP_DEFAULT_LTO; - list_add(&llcp_devices, &local->list); + list_add(&local->list, &llcp_devices); return 0; } -- cgit v0.10.2 From 60ad07ab6bc86f48b6ebda1788d79ca5f88d824c Mon Sep 17 00:00:00 2001 From: Szymon Janc Date: Thu, 25 Oct 2012 17:29:45 +0200 Subject: NFC: pn533: Fix missing lock while operating on commands list In pn533_wq_cmd command was removed from list without cmd_lock held (race with pn533_send_cmd_frame_async) which could lead to list corruption. Delete command from list before releasing lock. Signed-off-by: Szymon Janc Signed-off-by: Samuel Ortiz diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c index 97c440a..328f2b6 100644 --- a/drivers/nfc/pn533.c +++ b/drivers/nfc/pn533.c @@ -698,13 +698,14 @@ static void pn533_wq_cmd(struct work_struct *work) cmd = list_first_entry(&dev->cmd_queue, struct pn533_cmd, queue); + list_del(&cmd->queue); + mutex_unlock(&dev->cmd_lock); __pn533_send_cmd_frame_async(dev, cmd->out_frame, cmd->in_frame, cmd->in_frame_len, cmd->cmd_complete, cmd->arg, cmd->flags); - list_del(&cmd->queue); kfree(cmd); } -- cgit v0.10.2 From 770f750bc2b8312489c8e45306f551d08a319d3c Mon Sep 17 00:00:00 2001 From: Szymon Janc Date: Mon, 29 Oct 2012 14:04:43 +0100 Subject: NFC: pn533: Fix use after free cmd was freed in pn533_dep_link_up regardless of pn533_send_cmd_frame_async return code. Cmd is passed as argument to pn533_in_dep_link_up_complete callback and should be freed there. Signed-off-by: Szymon Janc Signed-off-by: Samuel Ortiz diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c index 328f2b6..84a2e77 100644 --- a/drivers/nfc/pn533.c +++ b/drivers/nfc/pn533.c @@ -1820,12 +1820,8 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target, rc = pn533_send_cmd_frame_async(dev, dev->out_frame, dev->in_frame, dev->in_maxlen, pn533_in_dep_link_up_complete, cmd, GFP_KERNEL); - if (rc) - goto out; - - -out: - kfree(cmd); + if (rc < 0) + kfree(cmd); return rc; } -- cgit v0.10.2 From 70418e6efcf4f8652cc08e3f2ab8ae35f0948fd9 Mon Sep 17 00:00:00 2001 From: Waldemar Rymarkiewicz Date: Thu, 11 Oct 2012 14:04:00 +0200 Subject: NFC: pn533: Fix mem leak in pn533_in_dep_link_up cmd is allocated in pn533_dep_link_up and passed as an arg to pn533_send_cmd_frame_async together with a complete cb. arg is passed to the cb and must be kfreed there. Signed-off-by: Waldemar Rymarkiewicz Signed-off-by: Samuel Ortiz diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c index 84a2e77..807bbb8 100644 --- a/drivers/nfc/pn533.c +++ b/drivers/nfc/pn533.c @@ -1679,11 +1679,14 @@ static void pn533_deactivate_target(struct nfc_dev *nfc_dev, static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg, u8 *params, int params_len) { - struct pn533_cmd_jump_dep *cmd; struct pn533_cmd_jump_dep_response *resp; struct nfc_target nfc_target; u8 target_gt_len; int rc; + struct pn533_cmd_jump_dep *cmd = (struct pn533_cmd_jump_dep *)arg; + u8 active = cmd->active; + + kfree(arg); if (params_len == -ENOENT) { nfc_dev_dbg(&dev->interface->dev, ""); @@ -1705,7 +1708,6 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg, } resp = (struct pn533_cmd_jump_dep_response *) params; - cmd = (struct pn533_cmd_jump_dep *) arg; rc = resp->status & PN533_CMD_RET_MASK; if (rc != PN533_CMD_RET_SUCCESS) { nfc_dev_err(&dev->interface->dev, @@ -1735,7 +1737,7 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg, if (rc == 0) rc = nfc_dep_link_is_up(dev->nfc_dev, dev->nfc_dev->targets[0].idx, - !cmd->active, NFC_RF_INITIATOR); + !active, NFC_RF_INITIATOR); return 0; } -- cgit v0.10.2 From 5b412fd11c918171c98a253d8a3484afa9f69ca5 Mon Sep 17 00:00:00 2001 From: Thierry Escande Date: Thu, 15 Nov 2012 18:24:28 +0100 Subject: NFC: Fix pn533 target mode memory leak In target mode, sent sk_buff were not freed in pn533_tm_send_complete Signed-off-by: Thierry Escande Signed-off-by: Samuel Ortiz diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c index 807bbb8..30ae18a 100644 --- a/drivers/nfc/pn533.c +++ b/drivers/nfc/pn533.c @@ -2077,8 +2077,12 @@ error: static int pn533_tm_send_complete(struct pn533 *dev, void *arg, u8 *params, int params_len) { + struct sk_buff *skb_out = arg; + nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + dev_kfree_skb(skb_out); + if (params_len < 0) { nfc_dev_err(&dev->interface->dev, "Error %d when sending data", @@ -2116,7 +2120,7 @@ static int pn533_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb) rc = pn533_send_cmd_frame_async(dev, out_frame, dev->in_frame, dev->in_maxlen, pn533_tm_send_complete, - NULL, GFP_KERNEL); + skb, GFP_KERNEL); if (rc) { nfc_dev_err(&dev->interface->dev, "Error %d when trying to send data", rc); -- cgit v0.10.2 From ab05613a0646dcc11049692d54bae76ca9ffa910 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Tue, 6 Nov 2012 17:13:44 +0800 Subject: md: Reassigned the parameters if read_seqretry returned true in func md_is_badblock. This bug was introduced by commit(v3.0-rc7-126-g2230dfe). So fix is suitable for 3.0.y thru 3.6.y. Cc: stable@vger.kernel.org Signed-off-by: Jianpeng Ma Signed-off-by: NeilBrown diff --git a/drivers/md/md.c b/drivers/md/md.c index 9ab768a..14db6ab 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7936,9 +7936,9 @@ int md_is_badblock(struct badblocks *bb, sector_t s, int sectors, sector_t *first_bad, int *bad_sectors) { int hi; - int lo = 0; + int lo; u64 *p = bb->page; - int rv = 0; + int rv; sector_t target = s + sectors; unsigned seq; @@ -7953,7 +7953,8 @@ int md_is_badblock(struct badblocks *bb, sector_t s, int sectors, retry: seq = read_seqbegin(&bb->lock); - + lo = 0; + rv = 0; hi = bb->count; /* Binary search between lo and hi for 'target' -- cgit v0.10.2 From 35f9ac2dcec8f79d7059ce174fd7b7ee3290d620 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Thu, 8 Nov 2012 08:56:27 +0800 Subject: md: Avoid write invalid address if read_seqretry returned true. If read_seqretry returned true and bbp was changed, it will write invalid address which can cause some serious problem. This bug was introduced by commit v3.0-rc7-130-g2699b67. So fix is suitable for 3.0.y thru 3.6.y. Reported-by: zhuwenfeng@kedacom.com Tested-by: zhuwenfeng@kedacom.com Cc: stable@vger.kernel.org Signed-off-by: Jianpeng Ma Signed-off-by: NeilBrown diff --git a/drivers/md/md.c b/drivers/md/md.c index 14db6ab..4c7d880 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1817,10 +1817,10 @@ retry: memset(bbp, 0xff, PAGE_SIZE); for (i = 0 ; i < bb->count ; i++) { - u64 internal_bb = *p++; + u64 internal_bb = p[i]; u64 store_bb = ((BB_OFFSET(internal_bb) << 10) | BB_LEN(internal_bb)); - *bbp++ = cpu_to_le64(store_bb); + bbp[i] = cpu_to_le64(store_bb); } bb->changed = 0; if (read_seqretry(&bb->lock, seq)) -- cgit v0.10.2 From 5eff3c439d3478ba9e8ba5f8c0aaf6e6fadb6e58 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 19 Nov 2012 10:47:48 +1100 Subject: md: make sure everything is freed when dm-raid stops an array. md_stop() would stop an array, but not free various attached data structures. For internal arrays, these are freed later in do_md_stop() or mddev_put(), but they don't apply for dm-raid arrays. So get md_stop() to free them, and only all it from dm-raid. For internal arrays we now call __md_stop. Reported-by: majianpeng Signed-off-by: NeilBrown diff --git a/drivers/md/md.c b/drivers/md/md.c index 4c7d880..6120071 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5294,7 +5294,7 @@ void md_stop_writes(struct mddev *mddev) } EXPORT_SYMBOL_GPL(md_stop_writes); -void md_stop(struct mddev *mddev) +static void __md_stop(struct mddev *mddev) { mddev->ready = 0; mddev->pers->stop(mddev); @@ -5304,6 +5304,18 @@ void md_stop(struct mddev *mddev) mddev->pers = NULL; clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); } + +void md_stop(struct mddev *mddev) +{ + /* stop the array and free an attached data structures. + * This is called from dm-raid + */ + __md_stop(mddev); + bitmap_destroy(mddev); + if (mddev->bio_set) + bioset_free(mddev->bio_set); +} + EXPORT_SYMBOL_GPL(md_stop); static int md_set_readonly(struct mddev *mddev, struct block_device *bdev) @@ -5364,7 +5376,7 @@ static int do_md_stop(struct mddev * mddev, int mode, set_disk_ro(disk, 0); __md_stop_writes(mddev); - md_stop(mddev); + __md_stop(mddev); mddev->queue->merge_bvec_fn = NULL; mddev->queue->backing_dev_info.congested_fn = NULL; -- cgit v0.10.2 From 3272dd9b0fe4bc09321219ab65dc5eda3e82445c Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Fri, 16 Nov 2012 00:33:59 +0000 Subject: of/net/mdio-gpio: Fix pdev->id issue when using devicetrees. When the mdio-gpio driver is probed via device trees, the platform device id is set as -1, However the pdev->id is re-used as bus-id for while creating mdio gpio bus. So For device tree case the mdio-gpio bus name appears as "gpio-ffffffff" where as for non-device tree case the bus name appears as "gpio-" Which means the bus_id is fixed in device tree case, so we can't have two mdio gpio buses via device trees. Assigning a logical bus number via device tree solves the problem and the bus name is much consistent with non-device tree bus name. Without this patch 1. we can't support two mdio-gpio buses via device trees. 2. we should always pass gpio-ffffffff as bus name to phy_connect, very different to non-device tree bus name. So, setting up the bus_id via aliases from device tree is the right solution and other drivers do similar thing. Signed-off-by: Srinivas Kandagatla Signed-off-by: David S. Miller diff --git a/Documentation/devicetree/bindings/net/mdio-gpio.txt b/Documentation/devicetree/bindings/net/mdio-gpio.txt index bc95495..c79bab0 100644 --- a/Documentation/devicetree/bindings/net/mdio-gpio.txt +++ b/Documentation/devicetree/bindings/net/mdio-gpio.txt @@ -8,9 +8,16 @@ gpios property as described in section VIII.1 in the following order: MDC, MDIO. +Note: Each gpio-mdio bus should have an alias correctly numbered in "aliases" +node. + Example: -mdio { +aliases { + mdio-gpio0 = <&mdio0>; +}; + +mdio0: mdio { compatible = "virtual,mdio-gpio"; #address-cells = <1>; #size-cells = <0>; diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c index 899274f..2ed1140 100644 --- a/drivers/net/phy/mdio-gpio.c +++ b/drivers/net/phy/mdio-gpio.c @@ -185,17 +185,20 @@ static int __devinit mdio_gpio_probe(struct platform_device *pdev) { struct mdio_gpio_platform_data *pdata; struct mii_bus *new_bus; - int ret; + int ret, bus_id; - if (pdev->dev.of_node) + if (pdev->dev.of_node) { pdata = mdio_gpio_of_get_data(pdev); - else + bus_id = of_alias_get_id(pdev->dev.of_node, "mdio-gpio"); + } else { pdata = pdev->dev.platform_data; + bus_id = pdev->id; + } if (!pdata) return -ENODEV; - new_bus = mdio_gpio_bus_init(&pdev->dev, pdata, pdev->id); + new_bus = mdio_gpio_bus_init(&pdev->dev, pdata, bus_id); if (!new_bus) return -ENODEV; -- cgit v0.10.2 From 4ac6875eeb97a49bad7bc8d56b5ec935904fc6e7 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 19 Nov 2012 13:11:26 +1100 Subject: md/raid5: round discard alignment up to power of 2. blkdev_issue_discard currently assumes that the granularity is a power of 2. So in raid5, round the chosen number up to avoid embarrassment. Cc: Shaohua Li Signed-off-by: NeilBrown diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index c5439dc..baea94f 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5529,6 +5529,10 @@ static int run(struct mddev *mddev) * discard data disk but write parity disk */ stripe = stripe * PAGE_SIZE; + /* Round up to power of 2, as discard handling + * currently assumes that */ + while ((stripe-1) & stripe) + stripe = (stripe | (stripe-1)) + 1; mddev->queue->limits.discard_alignment = stripe; mddev->queue->limits.discard_granularity = stripe; /* -- cgit v0.10.2 From 78a3c5ab1749cb78eb06b581c3c13d8e027bef40 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Wed, 31 Oct 2012 15:54:37 +0100 Subject: mfd: twl-core: Fix chip ID for the twl6030-pwm module The correct chip id is 1 since the PWM module is on address 0x49. With the current TWL6030_MODULE_ID1 the kernel will crash early since we have: #define TWL6030_MODULE_ID1 0x0E and static struct twl_client twl_modules[4]; Down in the stack we try to get the module by: struct twl_client *twl = &twl_modules[chip]; Which is obviously going to do nasty things. Signed-off-by: Peter Ujfalusi Acked-by: Tero Kristo Signed-off-by: Samuel Ortiz diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index 4ae6423..a071a86 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -671,7 +671,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, } if (IS_ENABLED(CONFIG_PWM_TWL6030) && twl_class_is_6030()) { - child = add_child(TWL6030_MODULE_ID1, "twl6030-pwm", NULL, 0, + child = add_child(SUB_CHIP_ID1, "twl6030-pwm", NULL, 0, false, 0, 0); if (IS_ERR(child)) return PTR_ERR(child); -- cgit v0.10.2 From 91280e755a43fd2a6a20bfeab3a571321de68b76 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 20 Nov 2012 20:39:28 +0900 Subject: ARM: EXYNOS: PL330 MDMA1 fix for revision 0 of Exynos4210 SOC Commit 8214513 ("ARM: EXYNOS: fix address for EXYNOS4 MDMA1") changed EXYNOS specific setup of PL330 DMA engine to use 'non-secure' mdma1 address instead of 'secure' one (from 0x12840000 to 0x12850000) to fix issue with some Exynos4212 SOCs. Unfortunately it brakes PL330 setup for revision 0 of Exynos4210 SOC (mdma1 device cannot be found at 'non-secure' address): [ 0.566245] dma-pl330 dma-pl330.2: PERIPH_ID 0x0, PCELL_ID 0x0 ! [ 0.566278] dma-pl330: probe of dma-pl330.2 failed with error -22 Fix it by using 'secure' mdma1 address on Exynos4210 revision 0 SOC. Reviewed-by: Tomasz Figa Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Kyungmin Park Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/dma.c b/arch/arm/mach-exynos/dma.c index 21d568b..87e07d6 100644 --- a/arch/arm/mach-exynos/dma.c +++ b/arch/arm/mach-exynos/dma.c @@ -275,6 +275,9 @@ static int __init exynos_dma_init(void) exynos_pdma1_pdata.nr_valid_peri = ARRAY_SIZE(exynos4210_pdma1_peri); exynos_pdma1_pdata.peri_id = exynos4210_pdma1_peri; + + if (samsung_rev() == EXYNOS4210_REV_0) + exynos_mdma1_device.res.start = EXYNOS4_PA_S_MDMA1; } else if (soc_is_exynos4212() || soc_is_exynos4412()) { exynos_pdma0_pdata.nr_valid_peri = ARRAY_SIZE(exynos4212_pdma0_peri); diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h index 8480849..ed4da45 100644 --- a/arch/arm/mach-exynos/include/mach/map.h +++ b/arch/arm/mach-exynos/include/mach/map.h @@ -90,6 +90,7 @@ #define EXYNOS4_PA_MDMA0 0x10810000 #define EXYNOS4_PA_MDMA1 0x12850000 +#define EXYNOS4_PA_S_MDMA1 0x12840000 #define EXYNOS4_PA_PDMA0 0x12680000 #define EXYNOS4_PA_PDMA1 0x12690000 #define EXYNOS5_PA_MDMA0 0x10800000 -- cgit v0.10.2 From d591ad8dcf32b8a71b63041d22a46dd8caf05041 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 20 Nov 2012 13:46:17 +0900 Subject: mfd: wm5102: Update register patch for latest evaluation Latest evaluation of the device has provided some revisions to the configuration. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c index 01b9255..14490cc 100644 --- a/drivers/mfd/wm5102-tables.c +++ b/drivers/mfd/wm5102-tables.c @@ -43,6 +43,7 @@ static const struct reg_default wm5102_reva_patch[] = { { 0x479, 0x0A30 }, { 0x47B, 0x0810 }, { 0x47D, 0x0510 }, + { 0x4D1, 0x017F }, { 0x500, 0x000D }, { 0x507, 0x1820 }, { 0x508, 0x1820 }, @@ -52,524 +53,6 @@ static const struct reg_default wm5102_reva_patch[] = { { 0x580, 0x000D }, { 0x587, 0x1820 }, { 0x588, 0x1820 }, - { 0x101, 0x8140 }, - { 0x3000, 0x2225 }, - { 0x3001, 0x3a03 }, - { 0x3002, 0x0225 }, - { 0x3003, 0x0801 }, - { 0x3004, 0x6249 }, - { 0x3005, 0x0c04 }, - { 0x3006, 0x0225 }, - { 0x3007, 0x5901 }, - { 0x3008, 0xe249 }, - { 0x3009, 0x030d }, - { 0x300a, 0x0249 }, - { 0x300b, 0x2c01 }, - { 0x300c, 0xe249 }, - { 0x300d, 0x4342 }, - { 0x300e, 0xe249 }, - { 0x300f, 0x73c0 }, - { 0x3010, 0x4249 }, - { 0x3011, 0x0c00 }, - { 0x3012, 0x0225 }, - { 0x3013, 0x1f01 }, - { 0x3014, 0x0225 }, - { 0x3015, 0x1e01 }, - { 0x3016, 0x0225 }, - { 0x3017, 0xfa00 }, - { 0x3018, 0x0000 }, - { 0x3019, 0xf000 }, - { 0x301a, 0x0000 }, - { 0x301b, 0xf000 }, - { 0x301c, 0x0000 }, - { 0x301d, 0xf000 }, - { 0x301e, 0x0000 }, - { 0x301f, 0xf000 }, - { 0x3020, 0x0000 }, - { 0x3021, 0xf000 }, - { 0x3022, 0x0000 }, - { 0x3023, 0xf000 }, - { 0x3024, 0x0000 }, - { 0x3025, 0xf000 }, - { 0x3026, 0x0000 }, - { 0x3027, 0xf000 }, - { 0x3028, 0x0000 }, - { 0x3029, 0xf000 }, - { 0x302a, 0x0000 }, - { 0x302b, 0xf000 }, - { 0x302c, 0x0000 }, - { 0x302d, 0xf000 }, - { 0x302e, 0x0000 }, - { 0x302f, 0xf000 }, - { 0x3030, 0x0225 }, - { 0x3031, 0x1a01 }, - { 0x3032, 0x0225 }, - { 0x3033, 0x1e00 }, - { 0x3034, 0x0225 }, - { 0x3035, 0x1f00 }, - { 0x3036, 0x6225 }, - { 0x3037, 0xf800 }, - { 0x3038, 0x0000 }, - { 0x3039, 0xf000 }, - { 0x303a, 0x0000 }, - { 0x303b, 0xf000 }, - { 0x303c, 0x0000 }, - { 0x303d, 0xf000 }, - { 0x303e, 0x0000 }, - { 0x303f, 0xf000 }, - { 0x3040, 0x2226 }, - { 0x3041, 0x3a03 }, - { 0x3042, 0x0226 }, - { 0x3043, 0x0801 }, - { 0x3044, 0x6249 }, - { 0x3045, 0x0c06 }, - { 0x3046, 0x0226 }, - { 0x3047, 0x5901 }, - { 0x3048, 0xe249 }, - { 0x3049, 0x030d }, - { 0x304a, 0x0249 }, - { 0x304b, 0x2c01 }, - { 0x304c, 0xe249 }, - { 0x304d, 0x4342 }, - { 0x304e, 0xe249 }, - { 0x304f, 0x73c0 }, - { 0x3050, 0x4249 }, - { 0x3051, 0x0c00 }, - { 0x3052, 0x0226 }, - { 0x3053, 0x1f01 }, - { 0x3054, 0x0226 }, - { 0x3055, 0x1e01 }, - { 0x3056, 0x0226 }, - { 0x3057, 0xfa00 }, - { 0x3058, 0x0000 }, - { 0x3059, 0xf000 }, - { 0x305a, 0x0000 }, - { 0x305b, 0xf000 }, - { 0x305c, 0x0000 }, - { 0x305d, 0xf000 }, - { 0x305e, 0x0000 }, - { 0x305f, 0xf000 }, - { 0x3060, 0x0000 }, - { 0x3061, 0xf000 }, - { 0x3062, 0x0000 }, - { 0x3063, 0xf000 }, - { 0x3064, 0x0000 }, - { 0x3065, 0xf000 }, - { 0x3066, 0x0000 }, - { 0x3067, 0xf000 }, - { 0x3068, 0x0000 }, - { 0x3069, 0xf000 }, - { 0x306a, 0x0000 }, - { 0x306b, 0xf000 }, - { 0x306c, 0x0000 }, - { 0x306d, 0xf000 }, - { 0x306e, 0x0000 }, - { 0x306f, 0xf000 }, - { 0x3070, 0x0226 }, - { 0x3071, 0x1a01 }, - { 0x3072, 0x0226 }, - { 0x3073, 0x1e00 }, - { 0x3074, 0x0226 }, - { 0x3075, 0x1f00 }, - { 0x3076, 0x6226 }, - { 0x3077, 0xf800 }, - { 0x3078, 0x0000 }, - { 0x3079, 0xf000 }, - { 0x307a, 0x0000 }, - { 0x307b, 0xf000 }, - { 0x307c, 0x0000 }, - { 0x307d, 0xf000 }, - { 0x307e, 0x0000 }, - { 0x307f, 0xf000 }, - { 0x3080, 0x2227 }, - { 0x3081, 0x3a03 }, - { 0x3082, 0x0227 }, - { 0x3083, 0x0801 }, - { 0x3084, 0x6255 }, - { 0x3085, 0x0c04 }, - { 0x3086, 0x0227 }, - { 0x3087, 0x5901 }, - { 0x3088, 0xe255 }, - { 0x3089, 0x030d }, - { 0x308a, 0x0255 }, - { 0x308b, 0x2c01 }, - { 0x308c, 0xe255 }, - { 0x308d, 0x4342 }, - { 0x308e, 0xe255 }, - { 0x308f, 0x73c0 }, - { 0x3090, 0x4255 }, - { 0x3091, 0x0c00 }, - { 0x3092, 0x0227 }, - { 0x3093, 0x1f01 }, - { 0x3094, 0x0227 }, - { 0x3095, 0x1e01 }, - { 0x3096, 0x0227 }, - { 0x3097, 0xfa00 }, - { 0x3098, 0x0000 }, - { 0x3099, 0xf000 }, - { 0x309a, 0x0000 }, - { 0x309b, 0xf000 }, - { 0x309c, 0x0000 }, - { 0x309d, 0xf000 }, - { 0x309e, 0x0000 }, - { 0x309f, 0xf000 }, - { 0x30a0, 0x0000 }, - { 0x30a1, 0xf000 }, - { 0x30a2, 0x0000 }, - { 0x30a3, 0xf000 }, - { 0x30a4, 0x0000 }, - { 0x30a5, 0xf000 }, - { 0x30a6, 0x0000 }, - { 0x30a7, 0xf000 }, - { 0x30a8, 0x0000 }, - { 0x30a9, 0xf000 }, - { 0x30aa, 0x0000 }, - { 0x30ab, 0xf000 }, - { 0x30ac, 0x0000 }, - { 0x30ad, 0xf000 }, - { 0x30ae, 0x0000 }, - { 0x30af, 0xf000 }, - { 0x30b0, 0x0227 }, - { 0x30b1, 0x1a01 }, - { 0x30b2, 0x0227 }, - { 0x30b3, 0x1e00 }, - { 0x30b4, 0x0227 }, - { 0x30b5, 0x1f00 }, - { 0x30b6, 0x6227 }, - { 0x30b7, 0xf800 }, - { 0x30b8, 0x0000 }, - { 0x30b9, 0xf000 }, - { 0x30ba, 0x0000 }, - { 0x30bb, 0xf000 }, - { 0x30bc, 0x0000 }, - { 0x30bd, 0xf000 }, - { 0x30be, 0x0000 }, - { 0x30bf, 0xf000 }, - { 0x30c0, 0x2228 }, - { 0x30c1, 0x3a03 }, - { 0x30c2, 0x0228 }, - { 0x30c3, 0x0801 }, - { 0x30c4, 0x6255 }, - { 0x30c5, 0x0c06 }, - { 0x30c6, 0x0228 }, - { 0x30c7, 0x5901 }, - { 0x30c8, 0xe255 }, - { 0x30c9, 0x030d }, - { 0x30ca, 0x0255 }, - { 0x30cb, 0x2c01 }, - { 0x30cc, 0xe255 }, - { 0x30cd, 0x4342 }, - { 0x30ce, 0xe255 }, - { 0x30cf, 0x73c0 }, - { 0x30d0, 0x4255 }, - { 0x30d1, 0x0c00 }, - { 0x30d2, 0x0228 }, - { 0x30d3, 0x1f01 }, - { 0x30d4, 0x0228 }, - { 0x30d5, 0x1e01 }, - { 0x30d6, 0x0228 }, - { 0x30d7, 0xfa00 }, - { 0x30d8, 0x0000 }, - { 0x30d9, 0xf000 }, - { 0x30da, 0x0000 }, - { 0x30db, 0xf000 }, - { 0x30dc, 0x0000 }, - { 0x30dd, 0xf000 }, - { 0x30de, 0x0000 }, - { 0x30df, 0xf000 }, - { 0x30e0, 0x0000 }, - { 0x30e1, 0xf000 }, - { 0x30e2, 0x0000 }, - { 0x30e3, 0xf000 }, - { 0x30e4, 0x0000 }, - { 0x30e5, 0xf000 }, - { 0x30e6, 0x0000 }, - { 0x30e7, 0xf000 }, - { 0x30e8, 0x0000 }, - { 0x30e9, 0xf000 }, - { 0x30ea, 0x0000 }, - { 0x30eb, 0xf000 }, - { 0x30ec, 0x0000 }, - { 0x30ed, 0xf000 }, - { 0x30ee, 0x0000 }, - { 0x30ef, 0xf000 }, - { 0x30f0, 0x0228 }, - { 0x30f1, 0x1a01 }, - { 0x30f2, 0x0228 }, - { 0x30f3, 0x1e00 }, - { 0x30f4, 0x0228 }, - { 0x30f5, 0x1f00 }, - { 0x30f6, 0x6228 }, - { 0x30f7, 0xf800 }, - { 0x30f8, 0x0000 }, - { 0x30f9, 0xf000 }, - { 0x30fa, 0x0000 }, - { 0x30fb, 0xf000 }, - { 0x30fc, 0x0000 }, - { 0x30fd, 0xf000 }, - { 0x30fe, 0x0000 }, - { 0x30ff, 0xf000 }, - { 0x3100, 0x222b }, - { 0x3101, 0x3a03 }, - { 0x3102, 0x222b }, - { 0x3103, 0x5803 }, - { 0x3104, 0xe26f }, - { 0x3105, 0x030d }, - { 0x3106, 0x626f }, - { 0x3107, 0x2c01 }, - { 0x3108, 0xe26f }, - { 0x3109, 0x4342 }, - { 0x310a, 0xe26f }, - { 0x310b, 0x73c0 }, - { 0x310c, 0x026f }, - { 0x310d, 0x0c00 }, - { 0x310e, 0x022b }, - { 0x310f, 0x1f01 }, - { 0x3110, 0x022b }, - { 0x3111, 0x1e01 }, - { 0x3112, 0x022b }, - { 0x3113, 0xfa00 }, - { 0x3114, 0x0000 }, - { 0x3115, 0xf000 }, - { 0x3116, 0x0000 }, - { 0x3117, 0xf000 }, - { 0x3118, 0x0000 }, - { 0x3119, 0xf000 }, - { 0x311a, 0x0000 }, - { 0x311b, 0xf000 }, - { 0x311c, 0x0000 }, - { 0x311d, 0xf000 }, - { 0x311e, 0x0000 }, - { 0x311f, 0xf000 }, - { 0x3120, 0x022b }, - { 0x3121, 0x0a01 }, - { 0x3122, 0x022b }, - { 0x3123, 0x1e00 }, - { 0x3124, 0x022b }, - { 0x3125, 0x1f00 }, - { 0x3126, 0x622b }, - { 0x3127, 0xf800 }, - { 0x3128, 0x0000 }, - { 0x3129, 0xf000 }, - { 0x312a, 0x0000 }, - { 0x312b, 0xf000 }, - { 0x312c, 0x0000 }, - { 0x312d, 0xf000 }, - { 0x312e, 0x0000 }, - { 0x312f, 0xf000 }, - { 0x3130, 0x0000 }, - { 0x3131, 0xf000 }, - { 0x3132, 0x0000 }, - { 0x3133, 0xf000 }, - { 0x3134, 0x0000 }, - { 0x3135, 0xf000 }, - { 0x3136, 0x0000 }, - { 0x3137, 0xf000 }, - { 0x3138, 0x0000 }, - { 0x3139, 0xf000 }, - { 0x313a, 0x0000 }, - { 0x313b, 0xf000 }, - { 0x313c, 0x0000 }, - { 0x313d, 0xf000 }, - { 0x313e, 0x0000 }, - { 0x313f, 0xf000 }, - { 0x3140, 0x0000 }, - { 0x3141, 0xf000 }, - { 0x3142, 0x0000 }, - { 0x3143, 0xf000 }, - { 0x3144, 0x0000 }, - { 0x3145, 0xf000 }, - { 0x3146, 0x0000 }, - { 0x3147, 0xf000 }, - { 0x3148, 0x0000 }, - { 0x3149, 0xf000 }, - { 0x314a, 0x0000 }, - { 0x314b, 0xf000 }, - { 0x314c, 0x0000 }, - { 0x314d, 0xf000 }, - { 0x314e, 0x0000 }, - { 0x314f, 0xf000 }, - { 0x3150, 0x0000 }, - { 0x3151, 0xf000 }, - { 0x3152, 0x0000 }, - { 0x3153, 0xf000 }, - { 0x3154, 0x0000 }, - { 0x3155, 0xf000 }, - { 0x3156, 0x0000 }, - { 0x3157, 0xf000 }, - { 0x3158, 0x0000 }, - { 0x3159, 0xf000 }, - { 0x315a, 0x0000 }, - { 0x315b, 0xf000 }, - { 0x315c, 0x0000 }, - { 0x315d, 0xf000 }, - { 0x315e, 0x0000 }, - { 0x315f, 0xf000 }, - { 0x3160, 0x0000 }, - { 0x3161, 0xf000 }, - { 0x3162, 0x0000 }, - { 0x3163, 0xf000 }, - { 0x3164, 0x0000 }, - { 0x3165, 0xf000 }, - { 0x3166, 0x0000 }, - { 0x3167, 0xf000 }, - { 0x3168, 0x0000 }, - { 0x3169, 0xf000 }, - { 0x316a, 0x0000 }, - { 0x316b, 0xf000 }, - { 0x316c, 0x0000 }, - { 0x316d, 0xf000 }, - { 0x316e, 0x0000 }, - { 0x316f, 0xf000 }, - { 0x3170, 0x0000 }, - { 0x3171, 0xf000 }, - { 0x3172, 0x0000 }, - { 0x3173, 0xf000 }, - { 0x3174, 0x0000 }, - { 0x3175, 0xf000 }, - { 0x3176, 0x0000 }, - { 0x3177, 0xf000 }, - { 0x3178, 0x0000 }, - { 0x3179, 0xf000 }, - { 0x317a, 0x0000 }, - { 0x317b, 0xf000 }, - { 0x317c, 0x0000 }, - { 0x317d, 0xf000 }, - { 0x317e, 0x0000 }, - { 0x317f, 0xf000 }, - { 0x3180, 0x2001 }, - { 0x3181, 0xf101 }, - { 0x3182, 0x0000 }, - { 0x3183, 0xf000 }, - { 0x3184, 0x0000 }, - { 0x3185, 0xf000 }, - { 0x3186, 0x0000 }, - { 0x3187, 0xf000 }, - { 0x3188, 0x0000 }, - { 0x3189, 0xf000 }, - { 0x318a, 0x0000 }, - { 0x318b, 0xf000 }, - { 0x318c, 0x0000 }, - { 0x318d, 0xf000 }, - { 0x318e, 0x0000 }, - { 0x318f, 0xf000 }, - { 0x3190, 0x0000 }, - { 0x3191, 0xf000 }, - { 0x3192, 0x0000 }, - { 0x3193, 0xf000 }, - { 0x3194, 0x0000 }, - { 0x3195, 0xf000 }, - { 0x3196, 0x0000 }, - { 0x3197, 0xf000 }, - { 0x3198, 0x0000 }, - { 0x3199, 0xf000 }, - { 0x319a, 0x0000 }, - { 0x319b, 0xf000 }, - { 0x319c, 0x0000 }, - { 0x319d, 0xf000 }, - { 0x319e, 0x0000 }, - { 0x319f, 0xf000 }, - { 0x31a0, 0x0000 }, - { 0x31a1, 0xf000 }, - { 0x31a2, 0x0000 }, - { 0x31a3, 0xf000 }, - { 0x31a4, 0x0000 }, - { 0x31a5, 0xf000 }, - { 0x31a6, 0x0000 }, - { 0x31a7, 0xf000 }, - { 0x31a8, 0x0000 }, - { 0x31a9, 0xf000 }, - { 0x31aa, 0x0000 }, - { 0x31ab, 0xf000 }, - { 0x31ac, 0x0000 }, - { 0x31ad, 0xf000 }, - { 0x31ae, 0x0000 }, - { 0x31af, 0xf000 }, - { 0x31b0, 0x0000 }, - { 0x31b1, 0xf000 }, - { 0x31b2, 0x0000 }, - { 0x31b3, 0xf000 }, - { 0x31b4, 0x0000 }, - { 0x31b5, 0xf000 }, - { 0x31b6, 0x0000 }, - { 0x31b7, 0xf000 }, - { 0x31b8, 0x0000 }, - { 0x31b9, 0xf000 }, - { 0x31ba, 0x0000 }, - { 0x31bb, 0xf000 }, - { 0x31bc, 0x0000 }, - { 0x31bd, 0xf000 }, - { 0x31be, 0x0000 }, - { 0x31bf, 0xf000 }, - { 0x31c0, 0x0000 }, - { 0x31c1, 0xf000 }, - { 0x31c2, 0x0000 }, - { 0x31c3, 0xf000 }, - { 0x31c4, 0x0000 }, - { 0x31c5, 0xf000 }, - { 0x31c6, 0x0000 }, - { 0x31c7, 0xf000 }, - { 0x31c8, 0x0000 }, - { 0x31c9, 0xf000 }, - { 0x31ca, 0x0000 }, - { 0x31cb, 0xf000 }, - { 0x31cc, 0x0000 }, - { 0x31cd, 0xf000 }, - { 0x31ce, 0x0000 }, - { 0x31cf, 0xf000 }, - { 0x31d0, 0x0000 }, - { 0x31d1, 0xf000 }, - { 0x31d2, 0x0000 }, - { 0x31d3, 0xf000 }, - { 0x31d4, 0x0000 }, - { 0x31d5, 0xf000 }, - { 0x31d6, 0x0000 }, - { 0x31d7, 0xf000 }, - { 0x31d8, 0x0000 }, - { 0x31d9, 0xf000 }, - { 0x31da, 0x0000 }, - { 0x31db, 0xf000 }, - { 0x31dc, 0x0000 }, - { 0x31dd, 0xf000 }, - { 0x31de, 0x0000 }, - { 0x31df, 0xf000 }, - { 0x31e0, 0x0000 }, - { 0x31e1, 0xf000 }, - { 0x31e2, 0x0000 }, - { 0x31e3, 0xf000 }, - { 0x31e4, 0x0000 }, - { 0x31e5, 0xf000 }, - { 0x31e6, 0x0000 }, - { 0x31e7, 0xf000 }, - { 0x31e8, 0x0000 }, - { 0x31e9, 0xf000 }, - { 0x31ea, 0x0000 }, - { 0x31eb, 0xf000 }, - { 0x31ec, 0x0000 }, - { 0x31ed, 0xf000 }, - { 0x31ee, 0x0000 }, - { 0x31ef, 0xf000 }, - { 0x31f0, 0x0000 }, - { 0x31f1, 0xf000 }, - { 0x31f2, 0x0000 }, - { 0x31f3, 0xf000 }, - { 0x31f4, 0x0000 }, - { 0x31f5, 0xf000 }, - { 0x31f6, 0x0000 }, - { 0x31f7, 0xf000 }, - { 0x31f8, 0x0000 }, - { 0x31f9, 0xf000 }, - { 0x31fa, 0x0000 }, - { 0x31fb, 0xf000 }, - { 0x31fc, 0x0000 }, - { 0x31fd, 0xf000 }, - { 0x31fe, 0x0000 }, - { 0x31ff, 0xf000 }, - { 0x024d, 0xff50 }, - { 0x0252, 0xff50 }, - { 0x0259, 0x0112 }, - { 0x025e, 0x0112 }, - { 0x101, 0x0304 }, { 0x80, 0x0000 }, }; -- cgit v0.10.2 From 944b058258da8a40c13300f374dbfc2617a9190d Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 20 Nov 2012 13:46:18 +0900 Subject: mfd: wm5110: Disable control interface error report for WM5110 rev B It can misreport. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c index ef0f2d0..b1b0091 100644 --- a/drivers/mfd/arizona-irq.c +++ b/drivers/mfd/arizona-irq.c @@ -178,6 +178,7 @@ int arizona_irq_init(struct arizona *arizona) switch (arizona->rev) { case 0: + case 1: ctrlif_error = false; break; default: -- cgit v0.10.2 From 78566afd8647654b2fb11c3ae13b3d8fe96a8cfe Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Tue, 20 Nov 2012 13:46:19 +0900 Subject: mfd: arizona: Use correct array for ARRAY_SIZE in mfd_add_devices call wm5102_devs array was used for ARRAY_SIZE whilst adding the wm5110 devices. This change corrects this to get the size from the wm5110_devs array. As both arrays are the same size no issues should have been caused by this bug. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 1b48f20..166254b 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -520,7 +520,7 @@ int __devinit arizona_dev_init(struct arizona *arizona) break; case WM5110: ret = mfd_add_devices(arizona->dev, -1, wm5110_devs, - ARRAY_SIZE(wm5102_devs), NULL, 0, NULL); + ARRAY_SIZE(wm5110_devs), NULL, 0, NULL); break; } -- cgit v0.10.2 From 3ebef34d5cf658752d000001d2a6a5defe8cf3a9 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Tue, 20 Nov 2012 13:46:20 +0900 Subject: mfd: arizona: Correctly report when AIF2/AIF1 is underclocked In the interrupt handler for an underclocked event, whilst checking for the source of the interrupt, AIF3 was checked twice and AIF1 was not checked. This change correctly checks the AIF1 underclocked bit and reports the correct error messages for all cases. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 166254b..202bf55 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -98,9 +98,9 @@ static irqreturn_t arizona_underclocked(int irq, void *data) if (val & ARIZONA_AIF3_UNDERCLOCKED_STS) dev_err(arizona->dev, "AIF3 underclocked\n"); - if (val & ARIZONA_AIF3_UNDERCLOCKED_STS) - dev_err(arizona->dev, "AIF3 underclocked\n"); if (val & ARIZONA_AIF2_UNDERCLOCKED_STS) + dev_err(arizona->dev, "AIF2 underclocked\n"); + if (val & ARIZONA_AIF1_UNDERCLOCKED_STS) dev_err(arizona->dev, "AIF1 underclocked\n"); if (val & ARIZONA_ISRC2_UNDERCLOCKED_STS) dev_err(arizona->dev, "ISRC2 underclocked\n"); -- cgit v0.10.2 From 46b9d13aaec19dfbd5882a999e8ed85fc97a751e Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Tue, 20 Nov 2012 14:49:10 +0900 Subject: mfd: arizona: Sync regcache after reset In the absence of a physical reset line the chip is reset by writing the first register, which is done after the register patch has been applied. This patch synchronises the register cache after the reset to preserve any register changes that had been applied. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 202bf55..f4f9bf8 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -415,11 +415,19 @@ int __devinit arizona_dev_init(struct arizona *arizona) /* If we have a /RESET GPIO we'll already be reset */ if (!arizona->pdata.reset) { + regcache_mark_dirty(arizona->regmap); + ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0); if (ret != 0) { dev_err(dev, "Failed to reset device: %d\n", ret); goto err_reset; } + + ret = regcache_sync(arizona->regmap); + if (ret != 0) { + dev_err(dev, "Failed to sync device: %d\n", ret); + goto err_reset; + } } ret = arizona_wait_for_boot(arizona); -- cgit v0.10.2 From 8c8a4b610b537b64326f4eea261984f12f8da073 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Tue, 20 Nov 2012 14:23:18 +0200 Subject: KVM: Retire as maintainer After six and a half years of writing and maintaining KVM, it is time to move to new things. Update my MAINTAINERS entry to reflect that. Signed-off-by: Avi Kivity diff --git a/CREDITS b/CREDITS index d8fe12a..2346b09 100644 --- a/CREDITS +++ b/CREDITS @@ -1823,6 +1823,11 @@ S: Kattreinstr 38 S: D-64295 S: Germany +N: Avi Kivity +E: avi.kivity@gmail.com +D: Kernel-based Virtual Machine (KVM) +S: Ra'annana, Israel + N: Andi Kleen E: andi@firstfloor.org U: http://www.halobates.de diff --git a/MAINTAINERS b/MAINTAINERS index bb0b27d..6b5b0b7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4280,7 +4280,6 @@ F: include/linux/lockd/ F: include/linux/sunrpc/ KERNEL VIRTUAL MACHINE (KVM) -M: Avi Kivity M: Marcelo Tosatti L: kvm@vger.kernel.org W: http://kvm.qumranet.com -- cgit v0.10.2 From 484cbfd2a36fd2e32942cd9dff0cb2492b2be607 Mon Sep 17 00:00:00 2001 From: Gleb Natapov Date: Tue, 20 Nov 2012 14:37:24 +0200 Subject: KVM: taking co-maintenance Updating MAINTAINERS file. Signed-off-by: Gleb Natapov Signed-off-by: Avi Kivity diff --git a/MAINTAINERS b/MAINTAINERS index 6b5b0b7..b273360 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4281,6 +4281,7 @@ F: include/linux/sunrpc/ KERNEL VIRTUAL MACHINE (KVM) M: Marcelo Tosatti +M: Gleb Natapov L: kvm@vger.kernel.org W: http://kvm.qumranet.com S: Supported -- cgit v0.10.2 From e506d6fde50e0a737234892eda31708692bdda29 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Tue, 13 Nov 2012 17:24:43 +0100 Subject: drm/i915: disable cloning on sdvo After the recent pile of disable-cloning patches, e.g. commit e3b86d6941c7e5f90be05d986fce1fcb40c68d6b Author: Egbert Eich Date: Sat Oct 13 14:30:15 2012 +0200 DRM/i915: Don't clone SDVO LVDS with analog and a bug report from Chris Wilson indicating that cloning doesn't even work for DVI-SDVO and native VGA, let's just disable cloning on sdvo encoders completely. v2: Update the comment in the code as discussed with Paulo Zanoni. Reviewed-by: Paulo Zanoni Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29259 Tested-by: Chris Wilson Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index c600fb0..a6ac0b4 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -2201,7 +2201,6 @@ intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device) connector->connector_type = DRM_MODE_CONNECTOR_HDMIA; intel_sdvo->is_hdmi = true; } - intel_sdvo->base.cloneable = true; intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo); if (intel_sdvo->is_hdmi) @@ -2232,7 +2231,6 @@ intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type) intel_sdvo->is_tv = true; intel_sdvo->base.needs_tv_clock = true; - intel_sdvo->base.cloneable = false; intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo); @@ -2275,8 +2273,6 @@ intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, int device) intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB1; } - intel_sdvo->base.cloneable = true; - intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo); return true; @@ -2307,9 +2303,6 @@ intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device) intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1; } - /* SDVO LVDS is not cloneable because the input mode gets adjusted by the encoder */ - intel_sdvo->base.cloneable = false; - intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo); if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector)) goto err; @@ -2721,6 +2714,16 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob) goto err_output; } + /* + * Cloning SDVO with anything is often impossible, since the SDVO + * encoder can request a special input timing mode. And even if that's + * not the case we have evidence that cloning a plain unscaled mode with + * VGA doesn't really work. Furthermore the cloning flags are way too + * simplistic anyway to express such constraints, so just give up on + * cloning for SDVO encoders. + */ + intel_sdvo->base.cloneable = false; + /* Only enable the hotplug irq if we need it, to work around noisy * hotplug lines. */ -- cgit v0.10.2 From 804cc4a0ad3a896ca295f771a28c6eb36ced7903 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 19 Nov 2012 09:11:27 -0500 Subject: drm/radeon: properly track the crtc not_enabled case evergreen_mc_stop() The save struct is not initialized previously so explicitly mark the crtcs as not used when they are not in use. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index af31f82..219942c 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -1330,6 +1330,8 @@ void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *sav break; udelay(1); } + } else { + save->crtc_enabled[i] = false; } } -- cgit v0.10.2 From 45171002b01b2e2ec4f991eca81ffd8430fd0aec Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Mon, 19 Nov 2012 21:17:31 +0100 Subject: radeon: add AGPMode 1 quirk for RV250 The Intel 82855PM host bridge / Mobility FireGL 9000 RV250 combination in an (outdated) ThinkPad T41 needs AGPMode 1 for suspend/resume (under KMS, that is). So add a quirk for it. (Change R250 to RV250 in comment for preceding quirk too.) Signed-off-by: Paul Bolle Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c index 10ea17a..4243334 100644 --- a/drivers/gpu/drm/radeon/radeon_agp.c +++ b/drivers/gpu/drm/radeon/radeon_agp.c @@ -69,9 +69,12 @@ static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = { /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/ { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59, PCI_VENDOR_ID_DELL, 0x00e3, 2}, - /* Intel 82852/82855 host bridge / Mobility FireGL 9000 R250 Needs AGPMode 1 (lp #296617) */ + /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */ { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66, PCI_VENDOR_ID_DELL, 0x0149, 1}, + /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */ + { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66, + PCI_VENDOR_ID_IBM, 0x0531, 1}, /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */ { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50, 0x1025, 0x0061, 1}, -- cgit v0.10.2 From da9da01d9199b5bb15289d0859053c9aa3a34ac0 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 20 Nov 2012 06:31:57 +0000 Subject: ne2000: add the right platform device Without this udev doesn't have a way to key the ne device to the platform device. Signed-off-by: Alan Cox Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/8390/ne.c b/drivers/net/ethernet/8390/ne.c index d04911d..47618e5 100644 --- a/drivers/net/ethernet/8390/ne.c +++ b/drivers/net/ethernet/8390/ne.c @@ -813,6 +813,7 @@ static int __init ne_drv_probe(struct platform_device *pdev) dev->irq = irq[this_dev]; dev->mem_end = bad[this_dev]; } + SET_NETDEV_DEV(dev, &pdev->dev); err = do_ne_probe(dev); if (err) { free_netdev(dev); -- cgit v0.10.2 From 1a4901177574083c35fafc24c4d151c2a7c7647c Mon Sep 17 00:00:00 2001 From: Xi Wang Date: Sat, 17 Nov 2012 20:25:09 +0000 Subject: ixp4xx_eth: avoid calling dma_pool_create() with NULL dev Use &port->netdev->dev instead of NULL since dma_pool_create() doesn't allow NULL dev. Signed-off-by: Xi Wang Cc: Andrew Morton Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c index 98934bd..477d672 100644 --- a/drivers/net/ethernet/xscale/ixp4xx_eth.c +++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c @@ -1102,10 +1102,12 @@ static int init_queues(struct port *port) { int i; - if (!ports_open) - if (!(dma_pool = dma_pool_create(DRV_NAME, NULL, - POOL_ALLOC_SIZE, 32, 0))) + if (!ports_open) { + dma_pool = dma_pool_create(DRV_NAME, &port->netdev->dev, + POOL_ALLOC_SIZE, 32, 0); + if (!dma_pool) return -ENOMEM; + } if (!(port->desc_tab = dma_pool_alloc(dma_pool, GFP_KERNEL, &port->desc_tab_phys))) -- cgit v0.10.2 From 3e2f61cd7a4e7642dcac4371734426e572f10370 Mon Sep 17 00:00:00 2001 From: Xi Wang Date: Sat, 17 Nov 2012 20:25:10 +0000 Subject: ixp4xx_hss: avoid calling dma_pool_create() with NULL dev Use &port->netdev->dev instead of NULL since dma_pool_create() doesn't allow NULL dev. Signed-off-by: Xi Wang Cc: Andrew Morton Signed-off-by: David S. Miller diff --git a/drivers/net/wan/ixp4xx_hss.c b/drivers/net/wan/ixp4xx_hss.c index 3f575af..e9a3da5 100644 --- a/drivers/net/wan/ixp4xx_hss.c +++ b/drivers/net/wan/ixp4xx_hss.c @@ -969,10 +969,12 @@ static int init_hdlc_queues(struct port *port) { int i; - if (!ports_open) - if (!(dma_pool = dma_pool_create(DRV_NAME, NULL, - POOL_ALLOC_SIZE, 32, 0))) + if (!ports_open) { + dma_pool = dma_pool_create(DRV_NAME, &port->netdev->dev, + POOL_ALLOC_SIZE, 32, 0); + if (!dma_pool) return -ENOMEM; + } if (!(port->desc_tab = dma_pool_alloc(dma_pool, GFP_KERNEL, &port->desc_tab_phys))) -- cgit v0.10.2 From b4dd006760d671337b62532277b0296bcee8dfd4 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 20 Nov 2012 15:14:51 -0500 Subject: ipv6: fix inet6_csk_update_pmtu() return value MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In case of error, inet6_csk_update_pmtu() should consistently return NULL. Bug added in commit 35ad9b9cf7d8a (ipv6: Add helper inet6_csk_update_pmtu().) Reported-by: Lluís Batlle i Rossell Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c index c4f9341..3064785 100644 --- a/net/ipv6/inet6_connection_sock.c +++ b/net/ipv6/inet6_connection_sock.c @@ -252,6 +252,7 @@ struct dst_entry *inet6_csk_update_pmtu(struct sock *sk, u32 mtu) return NULL; dst->ops->update_pmtu(dst, sk, NULL, mtu); - return inet6_csk_route_socket(sk, &fl6); + dst = inet6_csk_route_socket(sk, &fl6); + return IS_ERR(dst) ? NULL : dst; } EXPORT_SYMBOL_GPL(inet6_csk_update_pmtu); -- cgit v0.10.2 From caaa8c6339ccefee6e834c4a8b0bec7e721e7357 Mon Sep 17 00:00:00 2001 From: Cesar Eduardo Barros Date: Sat, 27 Oct 2012 20:34:15 -0200 Subject: x86: remove dummy long from EFI stub Commit 2e064b1 (x86, efi: Fix issue of overlapping .reloc section for EFI_STUB) removed a dummy reloc added by commit 291f363 (x86, efi: EFI boot stub support), but forgot to remove the dummy long used by that reloc. Reviewed-by: Jordan Justen Tested-by: Lee G Rosenbaum Cc: "H. Peter Anvin" Cc: Thomas Gleixner Cc: Ingo Molnar Signed-off-by: Cesar Eduardo Barros Signed-off-by: Matt Fleming diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S index 2a01744..8c132a6 100644 --- a/arch/x86/boot/header.S +++ b/arch/x86/boot/header.S @@ -476,6 +476,3 @@ die: setup_corrupt: .byte 7 .string "No setup signature found...\n" - - .data -dummy: .long 0 -- cgit v0.10.2 From 2355a62bcbdcc4b567425bab036bfab6ade87eed Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Tue, 20 Nov 2012 09:59:11 +0000 Subject: irda: sir_dev: Fix copy/paste typo Signed-off-by: Alexander Shiyan Signed-off-by: David S. Miller diff --git a/drivers/net/irda/sir_dev.c b/drivers/net/irda/sir_dev.c index 5039f08..43e9ab4 100644 --- a/drivers/net/irda/sir_dev.c +++ b/drivers/net/irda/sir_dev.c @@ -222,7 +222,7 @@ static void sirdev_config_fsm(struct work_struct *work) break; case SIRDEV_STATE_DONGLE_SPEED: - if (dev->dongle_drv->reset) { + if (dev->dongle_drv->set_speed) { ret = dev->dongle_drv->set_speed(dev, fsm->param); if (ret < 0) { fsm->result = ret; -- cgit v0.10.2 From aecb55be41b1bab432e81d550ebce010e7d178c6 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Tue, 20 Nov 2012 10:23:13 +0000 Subject: net: fix build failure in xilinx Commit 71c6c837 (drivers/net: fix tasklet misuse issue) introduced a build failure in the xilinx driver. axienet_dma_err_handler isn't declared before its use in axienet_open. This patch provides the prototype before axienet_open. Cc: Xiaotian Feng Signed-off-by: Jeff Mahoney Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index 77e6db9..a788501 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -894,6 +894,8 @@ out: return IRQ_HANDLED; } +static void axienet_dma_err_handler(unsigned long data); + /** * axienet_open - Driver open routine. * @ndev: Pointer to net_device structure -- cgit v0.10.2 From 0f905a43ce955b638139bd84486194770a6a2c08 Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Tue, 20 Nov 2012 13:07:46 +0000 Subject: x86, efi: Fix processor-specific memcpy() build error Building for Athlon/Duron/K7 results in the following build error, arch/x86/boot/compressed/eboot.o: In function `__constant_memcpy3d': eboot.c:(.text+0x385): undefined reference to `_mmx_memcpy' arch/x86/boot/compressed/eboot.o: In function `efi_main': eboot.c:(.text+0x1a22): undefined reference to `_mmx_memcpy' because the boot stub code doesn't link with the kernel proper, and therefore doesn't have access to the 3DNow version of memcpy. So, follow the example of misc.c and #undef memcpy so that we use the version provided by misc.c. See https://bugzilla.kernel.org/show_bug.cgi?id=50391 Reported-by: Al Viro Reported-by: Ryan Underwood Cc: H. Peter Anvin Cc: stable@vger.kernel.org Signed-off-by: Matt Fleming diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c index c760e07..e87b0ca 100644 --- a/arch/x86/boot/compressed/eboot.c +++ b/arch/x86/boot/compressed/eboot.c @@ -12,6 +12,8 @@ #include #include +#undef memcpy /* Use memcpy from misc.c */ + #include "eboot.h" static efi_system_table_t *sys_table; -- cgit v0.10.2 From ae6a5d37725853325a2b3460165fbc5613ce2916 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 20 Nov 2012 12:17:51 +0000 Subject: ASoC: kirkwood-dma: fix use of virt_to_phys() This is part of a patch found in Rabeeh Khoury's git tree for the cubox. You can not use virt_to_phys() on the address returned from dma_alloc_coherent(); it may not be part of the kernel direct-mapped memory. Fix this to use the DMA address instead. Signed-off-by: Russell King Signed-off-by: Mark Brown diff --git a/sound/soc/kirkwood/kirkwood-dma.c b/sound/soc/kirkwood/kirkwood-dma.c index b9f1659..afe1930 100644 --- a/sound/soc/kirkwood/kirkwood-dma.c +++ b/sound/soc/kirkwood/kirkwood-dma.c @@ -178,7 +178,7 @@ static int kirkwood_dma_open(struct snd_pcm_substream *substream) } dram = mv_mbus_dram_info(); - addr = virt_to_phys(substream->dma_buffer.area); + addr = substream->dma_buffer.addr; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { prdata->play_stream = substream; kirkwood_dma_conf_mbus_windows(priv->io, -- cgit v0.10.2 From 25ec6bbb63e7eec905d94ccb59cdd54cf22ee618 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 20 Nov 2012 12:18:11 +0000 Subject: ASoC: kirkwood-dma: don't ignore other irq causes on error Ignoring the real cause of the interrupt is not a good idea; this behaviour has been observed to bring Dove platforms to silently lockup. Instead, on error fall through to the normal interrupt processing. This is especially important on Dove platforms as errors are handled separately, and allows us to clear down the real cause of the interrupt. Signed-off-by: Russell King Signed-off-by: Mark Brown diff --git a/sound/soc/kirkwood/kirkwood-dma.c b/sound/soc/kirkwood/kirkwood-dma.c index afe1930..2ba0814 100644 --- a/sound/soc/kirkwood/kirkwood-dma.c +++ b/sound/soc/kirkwood/kirkwood-dma.c @@ -71,7 +71,6 @@ static irqreturn_t kirkwood_dma_irq(int irq, void *dev_id) printk(KERN_WARNING "%s: got err interrupt 0x%lx\n", __func__, cause); writel(cause, priv->io + KIRKWOOD_ERR_CAUSE); - return IRQ_HANDLED; } /* we've enabled only bytes interrupts ... */ -- cgit v0.10.2 From 2424d458108e275ca736dabc792ee9b6733994c5 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 20 Nov 2012 12:18:32 +0000 Subject: ASoC: kirkwood-i2s: fix DCO lock detection This is part of a patch found in Rabeeh Khoury's git tree for the cubox, which is further attributed to Sebastian Hesselbrath. Rather than masking the KIRKWOOD_DCO_SPCR_STATUS register contents against the registers virtual address, let's actually use the bit definition for the locked status, as required in the documentation. Signed-off-by: Russell King Signed-off-by: Mark Brown diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c index 542538d..485af80 100644 --- a/sound/soc/kirkwood/kirkwood-i2s.c +++ b/sound/soc/kirkwood/kirkwood-i2s.c @@ -95,7 +95,7 @@ static inline void kirkwood_set_dco(void __iomem *io, unsigned long rate) do { cpu_relax(); value = readl(io + KIRKWOOD_DCO_SPCR_STATUS); - value &= KIRKWOOD_DCO_SPCR_STATUS; + value &= KIRKWOOD_DCO_SPCR_STATUS_DCO_LOCK; } while (value == 0); } -- cgit v0.10.2 From 982b604bc56a3da874e489051fc7adb49b1eba65 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 20 Nov 2012 12:18:52 +0000 Subject: ASoC: kirkwood-i2s: fix DMA underruns Stress testing the driver with multiple start/stop events causes kirkwood-dma to report underrun errors (which used to cause the kernel to lock up solidly). This is because kirkwood-i2s is not respecting the restrictions imposed on clearing the 'pause' bit. Follow what the spec says; the busy bit must be read as being clear twice before the pause bit can be released. This solves the underruns. However, it has been noticed that the busy bit occasionally does not clear itself, hence the waiting is bounded to 5ms maximum to avoid a new reason for the kernel to lockup. Signed-off-by: Russell King Signed-off-by: Mark Brown diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c index 485af80..826306d 100644 --- a/sound/soc/kirkwood/kirkwood-i2s.c +++ b/sound/soc/kirkwood/kirkwood-i2s.c @@ -180,67 +180,76 @@ static int kirkwood_i2s_play_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai); - unsigned long value; - - /* - * specs says KIRKWOOD_PLAYCTL must be read 2 times before - * changing it. So read 1 time here and 1 later. - */ - value = readl(priv->io + KIRKWOOD_PLAYCTL); + uint32_t ctl, value; + + ctl = readl(priv->io + KIRKWOOD_PLAYCTL); + if (ctl & KIRKWOOD_PLAYCTL_PAUSE) { + unsigned timeout = 5000; + /* + * The Armada510 spec says that if we enter pause mode, the + * busy bit must be read back as clear _twice_. Make sure + * we respect that otherwise we get DMA underruns. + */ + do { + value = ctl; + ctl = readl(priv->io + KIRKWOOD_PLAYCTL); + if (!((ctl | value) & KIRKWOOD_PLAYCTL_PLAY_BUSY)) + break; + udelay(1); + } while (timeout--); + + if ((ctl | value) & KIRKWOOD_PLAYCTL_PLAY_BUSY) + dev_notice(dai->dev, "timed out waiting for busy to deassert: %08x\n", + ctl); + } switch (cmd) { case SNDRV_PCM_TRIGGER_START: /* stop audio, enable interrupts */ - value = readl(priv->io + KIRKWOOD_PLAYCTL); - value |= KIRKWOOD_PLAYCTL_PAUSE; - writel(value, priv->io + KIRKWOOD_PLAYCTL); + ctl |= KIRKWOOD_PLAYCTL_PAUSE; + writel(ctl, priv->io + KIRKWOOD_PLAYCTL); value = readl(priv->io + KIRKWOOD_INT_MASK); value |= KIRKWOOD_INT_CAUSE_PLAY_BYTES; writel(value, priv->io + KIRKWOOD_INT_MASK); /* configure audio & enable i2s playback */ - value = readl(priv->io + KIRKWOOD_PLAYCTL); - value &= ~KIRKWOOD_PLAYCTL_BURST_MASK; - value &= ~(KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE + ctl &= ~KIRKWOOD_PLAYCTL_BURST_MASK; + ctl &= ~(KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE | KIRKWOOD_PLAYCTL_SPDIF_EN); if (priv->burst == 32) - value |= KIRKWOOD_PLAYCTL_BURST_32; + ctl |= KIRKWOOD_PLAYCTL_BURST_32; else - value |= KIRKWOOD_PLAYCTL_BURST_128; - value |= KIRKWOOD_PLAYCTL_I2S_EN; - writel(value, priv->io + KIRKWOOD_PLAYCTL); + ctl |= KIRKWOOD_PLAYCTL_BURST_128; + ctl |= KIRKWOOD_PLAYCTL_I2S_EN; + writel(ctl, priv->io + KIRKWOOD_PLAYCTL); break; case SNDRV_PCM_TRIGGER_STOP: /* stop audio, disable interrupts */ - value = readl(priv->io + KIRKWOOD_PLAYCTL); - value |= KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE; - writel(value, priv->io + KIRKWOOD_PLAYCTL); + ctl |= KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE; + writel(ctl, priv->io + KIRKWOOD_PLAYCTL); value = readl(priv->io + KIRKWOOD_INT_MASK); value &= ~KIRKWOOD_INT_CAUSE_PLAY_BYTES; writel(value, priv->io + KIRKWOOD_INT_MASK); /* disable all playbacks */ - value = readl(priv->io + KIRKWOOD_PLAYCTL); - value &= ~(KIRKWOOD_PLAYCTL_I2S_EN | KIRKWOOD_PLAYCTL_SPDIF_EN); - writel(value, priv->io + KIRKWOOD_PLAYCTL); + ctl &= ~(KIRKWOOD_PLAYCTL_I2S_EN | KIRKWOOD_PLAYCTL_SPDIF_EN); + writel(ctl, priv->io + KIRKWOOD_PLAYCTL); break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: case SNDRV_PCM_TRIGGER_SUSPEND: - value = readl(priv->io + KIRKWOOD_PLAYCTL); - value |= KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE; - writel(value, priv->io + KIRKWOOD_PLAYCTL); + ctl |= KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE; + writel(ctl, priv->io + KIRKWOOD_PLAYCTL); break; case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - value = readl(priv->io + KIRKWOOD_PLAYCTL); - value &= ~(KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE); - writel(value, priv->io + KIRKWOOD_PLAYCTL); + ctl &= ~(KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE); + writel(ctl, priv->io + KIRKWOOD_PLAYCTL); break; default: -- cgit v0.10.2 From 3ccdf5bbdf5f2488e4a36692d055ba9c43ae6717 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 20 Nov 2012 12:19:13 +0000 Subject: ASoC: kirkwood-i2s: more pause-mode fixes Don't even momentarily set the pause status when starting the channel; if we do, we should check the busy bit to ensure that we comply with the spec. In any case, it isn't necessary; we will not active on a START event so there is no need to pause the DMA. Signed-off-by: Russell King Signed-off-by: Mark Brown diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c index 826306d..1d5db48 100644 --- a/sound/soc/kirkwood/kirkwood-i2s.c +++ b/sound/soc/kirkwood/kirkwood-i2s.c @@ -205,10 +205,6 @@ static int kirkwood_i2s_play_trigger(struct snd_pcm_substream *substream, switch (cmd) { case SNDRV_PCM_TRIGGER_START: - /* stop audio, enable interrupts */ - ctl |= KIRKWOOD_PLAYCTL_PAUSE; - writel(ctl, priv->io + KIRKWOOD_PLAYCTL); - value = readl(priv->io + KIRKWOOD_INT_MASK); value |= KIRKWOOD_INT_CAUSE_PLAY_BYTES; writel(value, priv->io + KIRKWOOD_INT_MASK); @@ -269,11 +265,6 @@ static int kirkwood_i2s_rec_trigger(struct snd_pcm_substream *substream, switch (cmd) { case SNDRV_PCM_TRIGGER_START: - /* stop audio, enable interrupts */ - value = readl(priv->io + KIRKWOOD_RECCTL); - value |= KIRKWOOD_RECCTL_PAUSE; - writel(value, priv->io + KIRKWOOD_RECCTL); - value = readl(priv->io + KIRKWOOD_INT_MASK); value |= KIRKWOOD_INT_CAUSE_REC_BYTES; writel(value, priv->io + KIRKWOOD_INT_MASK); -- cgit v0.10.2 From 68fa965dd923177eafad49b7a0045fc610917341 Mon Sep 17 00:00:00 2001 From: Mats Petersson Date: Fri, 16 Nov 2012 18:36:49 +0000 Subject: xen/privcmd: Correctly return success from IOCTL_PRIVCMD_MMAPBATCH This is a regression introduced by ceb90fa0 (xen/privcmd: add PRIVCMD_MMAPBATCH_V2 ioctl). It broke xentrace as it used xc_map_foreign() instead of xc_map_foreign_bulk(). Most code-paths prefer the MMAPBATCH_V2, so this wasn't very obvious that it broke. The return value is set early on to -EINVAL, and if all goes well, the "set top bits of the MFN's" never gets called, so the return value is still EINVAL when the function gets to the end, causing the caller to think it went wrong (which it didn't!) Now also including Andres "move the ret = -EINVAL into the error handling path, as this avoids other similar errors in future. Signed-off-by: Mats Petersson Acked-by: Andres Lagar-Cavilla Acked-by: David Vrabel Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c index 8adb9cc..71f5c45 100644 --- a/drivers/xen/privcmd.c +++ b/drivers/xen/privcmd.c @@ -361,13 +361,13 @@ static long privcmd_ioctl_mmap_batch(void __user *udata, int version) down_write(&mm->mmap_sem); vma = find_vma(mm, m.addr); - ret = -EINVAL; if (!vma || vma->vm_ops != &privcmd_vm_ops || (m.addr != vma->vm_start) || ((m.addr + (nr_pages << PAGE_SHIFT)) != vma->vm_end) || !privcmd_enforce_singleshot_mapping(vma)) { up_write(&mm->mmap_sem); + ret = -EINVAL; goto out; } @@ -383,12 +383,16 @@ static long privcmd_ioctl_mmap_batch(void __user *udata, int version) up_write(&mm->mmap_sem); - if (state.global_error && (version == 1)) { - /* Write back errors in second pass. */ - state.user_mfn = (xen_pfn_t *)m.arr; - state.err = err_array; - ret = traverse_pages(m.num, sizeof(xen_pfn_t), - &pagelist, mmap_return_errors_v1, &state); + if (version == 1) { + if (state.global_error) { + /* Write back errors in second pass. */ + state.user_mfn = (xen_pfn_t *)m.arr; + state.err = err_array; + ret = traverse_pages(m.num, sizeof(xen_pfn_t), + &pagelist, mmap_return_errors_v1, &state); + } else + ret = 0; + } else if (version == 2) { ret = __copy_to_user(m.err, err_array, m.num * sizeof(int)); if (ret) -- cgit v0.10.2 From 1022623842cb72ee4d0dbf02f6937f38c92c3f41 Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Mon, 3 Sep 2012 20:54:48 +0200 Subject: x86-32: Fix invalid stack address while in softirq In 32 bit the stack address provided by kernel_stack_pointer() may point to an invalid range causing NULL pointer access or page faults while in NMI (see trace below). This happens if called in softirq context and if the stack is empty. The address at ®s->sp is then out of range. Fixing this by checking if regs and ®s->sp are in the same stack context. Otherwise return the previous stack pointer stored in struct thread_info. If that address is invalid too, return address of regs. BUG: unable to handle kernel NULL pointer dereference at 0000000a IP: [] print_context_stack+0x6e/0x8d *pde = 00000000 Oops: 0000 [#1] SMP Modules linked in: Pid: 4434, comm: perl Not tainted 3.6.0-rc3-oprofile-i386-standard-g4411a05 #4 Hewlett-Packard HP xw9400 Workstation/0A1Ch EIP: 0060:[] EFLAGS: 00010093 CPU: 0 EIP is at print_context_stack+0x6e/0x8d EAX: ffffe000 EBX: 0000000a ECX: f4435f94 EDX: 0000000a ESI: f4435f94 EDI: f4435f94 EBP: f5409ec0 ESP: f5409ea0 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 CR0: 8005003b CR2: 0000000a CR3: 34ac9000 CR4: 000007d0 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 Process perl (pid: 4434, ti=f5408000 task=f5637850 task.ti=f4434000) Stack: 000003e8 ffffe000 00001ffc f4e39b00 00000000 0000000a f4435f94 c155198c f5409ef0 c1003723 c155198c f5409f04 00000000 f5409edc 00000000 00000000 f5409ee8 f4435f94 f5409fc4 00000001 f5409f1c c12dce1c 00000000 c155198c Call Trace: [] dump_trace+0x7b/0xa1 [] x86_backtrace+0x40/0x88 [] ? oprofile_add_sample+0x56/0x84 [] oprofile_add_sample+0x75/0x84 [] op_amd_check_ctrs+0x46/0x260 [] profile_exceptions_notify+0x23/0x4c [] nmi_handle+0x31/0x4a [] ? ftrace_define_fields_irq_handler_entry+0x45/0x45 [] do_nmi+0xa0/0x2ff [] ? ftrace_define_fields_irq_handler_entry+0x45/0x45 [] nmi_stack_correct+0x28/0x2d [] ? ftrace_define_fields_irq_handler_entry+0x45/0x45 [] ? do_softirq+0x4b/0x7f [] irq_exit+0x35/0x5b [] smp_apic_timer_interrupt+0x6c/0x7a [] apic_timer_interrupt+0x2a/0x30 Code: 89 fe eb 08 31 c9 8b 45 0c ff 55 ec 83 c3 04 83 7d 10 00 74 0c 3b 5d 10 73 26 3b 5d e4 73 0c eb 1f 3b 5d f0 76 1a 3b 5d e8 73 15 <8b> 13 89 d0 89 55 e0 e8 ad 42 03 00 85 c0 8b 55 e0 75 a6 eb cc EIP: [] print_context_stack+0x6e/0x8d SS:ESP 0068:f5409ea0 CR2: 000000000000000a ---[ end trace 62afee3481b00012 ]--- Kernel panic - not syncing: Fatal exception in interrupt V2: * add comments to kernel_stack_pointer() * always return a valid stack address by falling back to the address of regs Reported-by: Yang Wei Cc: Signed-off-by: Robert Richter Link: http://lkml.kernel.org/r/20120912135059.GZ8285@erda.amd.com Signed-off-by: H. Peter Anvin Cc: Jun Zhang diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h index dcfde52..19f16eb 100644 --- a/arch/x86/include/asm/ptrace.h +++ b/arch/x86/include/asm/ptrace.h @@ -205,21 +205,14 @@ static inline bool user_64bit_mode(struct pt_regs *regs) } #endif -/* - * X86_32 CPUs don't save ss and esp if the CPU is already in kernel mode - * when it traps. The previous stack will be directly underneath the saved - * registers, and 'sp/ss' won't even have been saved. Thus the '®s->sp'. - * - * This is valid only for kernel mode traps. - */ -static inline unsigned long kernel_stack_pointer(struct pt_regs *regs) -{ #ifdef CONFIG_X86_32 - return (unsigned long)(®s->sp); +extern unsigned long kernel_stack_pointer(struct pt_regs *regs); #else +static inline unsigned long kernel_stack_pointer(struct pt_regs *regs) +{ return regs->sp; -#endif } +#endif #define GET_IP(regs) ((regs)->ip) #define GET_FP(regs) ((regs)->bp) diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c index b00b33a..2484e33 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c @@ -166,6 +166,34 @@ static inline bool invalid_selector(u16 value) #define FLAG_MASK FLAG_MASK_32 +/* + * X86_32 CPUs don't save ss and esp if the CPU is already in kernel mode + * when it traps. The previous stack will be directly underneath the saved + * registers, and 'sp/ss' won't even have been saved. Thus the '®s->sp'. + * + * Now, if the stack is empty, '®s->sp' is out of range. In this + * case we try to take the previous stack. To always return a non-null + * stack pointer we fall back to regs as stack if no previous stack + * exists. + * + * This is valid only for kernel mode traps. + */ +unsigned long kernel_stack_pointer(struct pt_regs *regs) +{ + unsigned long context = (unsigned long)regs & ~(THREAD_SIZE - 1); + unsigned long sp = (unsigned long)®s->sp; + struct thread_info *tinfo; + + if (context == (sp & ~(THREAD_SIZE - 1))) + return sp; + + tinfo = (struct thread_info *)context; + if (tinfo->previous_esp) + return tinfo->previous_esp; + + return (unsigned long)regs; +} + static unsigned long *pt_regs_access(struct pt_regs *regs, unsigned long regno) { BUILD_BUG_ON(offsetof(struct pt_regs, bx) != 0); -- cgit v0.10.2 From cb57a2b4cff7edf2a4e32c0163200e9434807e0a Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Tue, 20 Nov 2012 22:21:02 -0800 Subject: x86-32: Export kernel_stack_pointer() for modules Modules, in particular oprofile (and possibly other similar tools) need kernel_stack_pointer(), so export it using EXPORT_SYMBOL_GPL(). Cc: Yang Wei Cc: Robert Richter Cc: Jun Zhang Cc: Link: http://lkml.kernel.org/r/20120912135059.GZ8285@erda.amd.com Signed-off-by: H. Peter Anvin diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c index 2484e33..5e0596b 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include @@ -193,6 +194,7 @@ unsigned long kernel_stack_pointer(struct pt_regs *regs) return (unsigned long)regs; } +EXPORT_SYMBOL_GPL(kernel_stack_pointer); static unsigned long *pt_regs_access(struct pt_regs *regs, unsigned long regno) { -- cgit v0.10.2 From 36c46ca4f322a7bf89aad5462a3a1f61713edce7 Mon Sep 17 00:00:00 2001 From: Boris Ostrovsky Date: Thu, 15 Nov 2012 13:41:50 -0500 Subject: x86, microcode, AMD: Add support for family 16h processors Add valid patch size for family 16h processors. [ hpa: promoting to urgent/stable since it is hw enabling and trivial ] Signed-off-by: Boris Ostrovsky Acked-by: Andreas Herrmann Link: http://lkml.kernel.org/r/1353004910-2204-1-git-send-email-boris.ostrovsky@amd.com Signed-off-by: H. Peter Anvin Cc: diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c index b3e67ba..efdec7c 100644 --- a/arch/x86/kernel/microcode_amd.c +++ b/arch/x86/kernel/microcode_amd.c @@ -190,6 +190,7 @@ static unsigned int verify_patch_size(int cpu, u32 patch_size, #define F1XH_MPB_MAX_SIZE 2048 #define F14H_MPB_MAX_SIZE 1824 #define F15H_MPB_MAX_SIZE 4096 +#define F16H_MPB_MAX_SIZE 3458 switch (c->x86) { case 0x14: @@ -198,6 +199,9 @@ static unsigned int verify_patch_size(int cpu, u32 patch_size, case 0x15: max_size = F15H_MPB_MAX_SIZE; break; + case 0x16: + max_size = F16H_MPB_MAX_SIZE; + break; default: max_size = F1XH_MPB_MAX_SIZE; break; -- cgit v0.10.2 From ee4eb87be2c3f69c2c4d9f1c1d98e363a7ad18ab Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Fri, 2 Nov 2012 11:18:39 +0000 Subject: x86-64: Fix ordering of CFI directives and recent ASM_CLAC additions While these got added in the right place everywhere else, entry_64.S is the odd one where they ended up before the initial CFI directive(s). In order to cover the full code ranges, the CFI directive must be first, though. Signed-off-by: Jan Beulich Link: http://lkml.kernel.org/r/5093BA1F02000078000A600E@nat28.tlf.novell.com Signed-off-by: H. Peter Anvin diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index b51b2c7..1328fe4 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -995,8 +995,8 @@ END(interrupt) */ .p2align CONFIG_X86_L1_CACHE_SHIFT common_interrupt: - ASM_CLAC XCPT_FRAME + ASM_CLAC addq $-0x80,(%rsp) /* Adjust vector to [-256,-1] range */ interrupt do_IRQ /* 0(%rsp): old_rsp-ARGOFFSET */ @@ -1135,8 +1135,8 @@ END(common_interrupt) */ .macro apicinterrupt num sym do_sym ENTRY(\sym) - ASM_CLAC INTR_FRAME + ASM_CLAC pushq_cfi $~(\num) .Lcommon_\sym: interrupt \do_sym @@ -1190,8 +1190,8 @@ apicinterrupt IRQ_WORK_VECTOR \ */ .macro zeroentry sym do_sym ENTRY(\sym) - ASM_CLAC INTR_FRAME + ASM_CLAC PARAVIRT_ADJUST_EXCEPTION_FRAME pushq_cfi $-1 /* ORIG_RAX: no syscall to restart */ subq $ORIG_RAX-R15, %rsp @@ -1208,8 +1208,8 @@ END(\sym) .macro paranoidzeroentry sym do_sym ENTRY(\sym) - ASM_CLAC INTR_FRAME + ASM_CLAC PARAVIRT_ADJUST_EXCEPTION_FRAME pushq_cfi $-1 /* ORIG_RAX: no syscall to restart */ subq $ORIG_RAX-R15, %rsp @@ -1227,8 +1227,8 @@ END(\sym) #define INIT_TSS_IST(x) PER_CPU_VAR(init_tss) + (TSS_ist + ((x) - 1) * 8) .macro paranoidzeroentry_ist sym do_sym ist ENTRY(\sym) - ASM_CLAC INTR_FRAME + ASM_CLAC PARAVIRT_ADJUST_EXCEPTION_FRAME pushq_cfi $-1 /* ORIG_RAX: no syscall to restart */ subq $ORIG_RAX-R15, %rsp @@ -1247,8 +1247,8 @@ END(\sym) .macro errorentry sym do_sym ENTRY(\sym) - ASM_CLAC XCPT_FRAME + ASM_CLAC PARAVIRT_ADJUST_EXCEPTION_FRAME subq $ORIG_RAX-R15, %rsp CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 @@ -1266,8 +1266,8 @@ END(\sym) /* error code is on the stack already */ .macro paranoiderrorentry sym do_sym ENTRY(\sym) - ASM_CLAC XCPT_FRAME + ASM_CLAC PARAVIRT_ADJUST_EXCEPTION_FRAME subq $ORIG_RAX-R15, %rsp CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 -- cgit v0.10.2 From af02dde8a609d8d071c4b31a82df811a55690a4a Mon Sep 17 00:00:00 2001 From: David Henningsson Date: Wed, 21 Nov 2012 08:57:58 +0100 Subject: ALSA: hda - Add support for Realtek ALC292 We found a new codec ID 292, and that just a simple quirk would enable sound output/input on this ALC292 chip. BugLink: https://bugs.launchpad.net/bugs/1081466 Cc: stable@vger.kernel.org Tested-by: Acelan Kao Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 68fd492..ad68d22 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -7065,6 +7065,7 @@ static const struct hda_codec_preset snd_hda_preset_realtek[] = { { .id = 0x10ec0282, .name = "ALC282", .patch = patch_alc269 }, { .id = 0x10ec0283, .name = "ALC283", .patch = patch_alc269 }, { .id = 0x10ec0290, .name = "ALC290", .patch = patch_alc269 }, + { .id = 0x10ec0292, .name = "ALC292", .patch = patch_alc269 }, { .id = 0x10ec0861, .rev = 0x100340, .name = "ALC660", .patch = patch_alc861 }, { .id = 0x10ec0660, .name = "ALC660-VD", .patch = patch_alc861vd }, -- cgit v0.10.2 From 34c3d1926bdaf45d3a891dd577482abcdd9faa34 Mon Sep 17 00:00:00 2001 From: David Henningsson Date: Wed, 21 Nov 2012 10:03:10 +0100 Subject: ALSA: hda - Cirrus: Correctly clear line_out_pins when moving to speaker If this array is not cleared, the jack related code later might fail to create "Internal Speaker Phantom Jack" on Dell Inspiron 3420 and Dell Vostro 2420. BugLink: https://bugs.launchpad.net/bugs/1076840 Cc: stable@vger.kernel.org (3.6+) Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c index d5f3a26..3bcb671 100644 --- a/sound/pci/hda/patch_cirrus.c +++ b/sound/pci/hda/patch_cirrus.c @@ -466,6 +466,7 @@ static int parse_output(struct hda_codec *codec) memcpy(cfg->speaker_pins, cfg->line_out_pins, sizeof(cfg->speaker_pins)); cfg->line_outs = 0; + memset(cfg->line_out_pins, 0, sizeof(cfg->line_out_pins)); } return 0; -- cgit v0.10.2 From 5edd0b946a0afeb1d0364a3654328b046fb818a2 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Tue, 20 Nov 2012 16:31:25 +0200 Subject: iwlwifi: fix the basic CCK rates calculation Fix a copy paste error in iwl_calc_basic_rates which leads to a wrong calculation of CCK basic rates. Cc: stable@vger.kernel.org Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg diff --git a/drivers/net/wireless/iwlwifi/dvm/rxon.c b/drivers/net/wireless/iwlwifi/dvm/rxon.c index 1089639..2830ea2 100644 --- a/drivers/net/wireless/iwlwifi/dvm/rxon.c +++ b/drivers/net/wireless/iwlwifi/dvm/rxon.c @@ -1012,12 +1012,12 @@ static void iwl_calc_basic_rates(struct iwl_priv *priv, * As a consequence, it's not as complicated as it sounds, just add * any lower rates to the ACK rate bitmap. */ - if (IWL_RATE_11M_INDEX < lowest_present_ofdm) - ofdm |= IWL_RATE_11M_MASK >> IWL_FIRST_CCK_RATE; - if (IWL_RATE_5M_INDEX < lowest_present_ofdm) - ofdm |= IWL_RATE_5M_MASK >> IWL_FIRST_CCK_RATE; - if (IWL_RATE_2M_INDEX < lowest_present_ofdm) - ofdm |= IWL_RATE_2M_MASK >> IWL_FIRST_CCK_RATE; + if (IWL_RATE_11M_INDEX < lowest_present_cck) + cck |= IWL_RATE_11M_MASK >> IWL_FIRST_CCK_RATE; + if (IWL_RATE_5M_INDEX < lowest_present_cck) + cck |= IWL_RATE_5M_MASK >> IWL_FIRST_CCK_RATE; + if (IWL_RATE_2M_INDEX < lowest_present_cck) + cck |= IWL_RATE_2M_MASK >> IWL_FIRST_CCK_RATE; /* 1M already there or needed so always add */ cck |= IWL_RATE_1M_MASK >> IWL_FIRST_CCK_RATE; -- cgit v0.10.2 From 88a693b5c1287be4da937699cb82068ce9db0135 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Thu, 8 Nov 2012 16:09:27 -0800 Subject: selinux: fix sel_netnode_insert() suspicious rcu dereference =============================== [ INFO: suspicious RCU usage. ] 3.5.0-rc1+ #63 Not tainted ------------------------------- security/selinux/netnode.c:178 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 1 lock held by trinity-child1/8750: #0: (sel_netnode_lock){+.....}, at: [] sel_netnode_sid+0x16a/0x3e0 stack backtrace: Pid: 8750, comm: trinity-child1 Not tainted 3.5.0-rc1+ #63 Call Trace: [] lockdep_rcu_suspicious+0xfd/0x130 [] sel_netnode_sid+0x3b1/0x3e0 [] ? sel_netnode_find+0x1a0/0x1a0 [] selinux_socket_bind+0xf6/0x2c0 [] ? trace_hardirqs_off+0xd/0x10 [] ? lock_release_holdtime.part.9+0x15/0x1a0 [] ? lock_hrtimer_base+0x31/0x60 [] security_socket_bind+0x16/0x20 [] sys_bind+0x7a/0x100 [] ? sysret_check+0x22/0x5d [] ? trace_hardirqs_on_caller+0x10d/0x1a0 [] ? trace_hardirqs_on_thunk+0x3a/0x3f [] system_call_fastpath+0x16/0x1b This patch below does what Paul McKenney suggested in the previous thread. Signed-off-by: Dave Jones Reviewed-by: Paul E. McKenney Acked-by: Paul Moore Cc: Eric Paris Cc: Signed-off-by: Andrew Morton Signed-off-by: James Morris diff --git a/security/selinux/netnode.c b/security/selinux/netnode.c index 28f911c..c5454c0 100644 --- a/security/selinux/netnode.c +++ b/security/selinux/netnode.c @@ -174,7 +174,8 @@ static void sel_netnode_insert(struct sel_netnode *node) if (sel_netnode_hash[idx].size == SEL_NETNODE_HASH_BKT_LIMIT) { struct sel_netnode *tail; tail = list_entry( - rcu_dereference(sel_netnode_hash[idx].list.prev), + rcu_dereference_protected(sel_netnode_hash[idx].list.prev, + lockdep_is_held(&sel_netnode_lock)), struct sel_netnode, list); list_del_rcu(&tail->list); kfree_rcu(tail, rcu); -- cgit v0.10.2 From 70b9b24d4d240ff5f6087bca4013c6969af275ab Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Thu, 22 Nov 2012 00:11:09 +0900 Subject: ARM: S3C24XX: Fix potential NULL pointer dereference error chan->end is tested for being NULL. However in the event that it is NULL, the subsequent assignment statement would lead to NULL pointer dereference. Thus dereferencing it only when it is not NULL. Signed-off-by: Sachin Kamat Signed-off-by: Kukjin Kim diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c index db98e70..0abd1c4 100644 --- a/arch/arm/plat-s3c24xx/dma.c +++ b/arch/arm/plat-s3c24xx/dma.c @@ -473,12 +473,13 @@ int s3c2410_dma_enqueue(enum dma_ch channel, void *id, pr_debug("dma%d: %s: buffer %p queued onto non-empty channel\n", chan->number, __func__, buf); - if (chan->end == NULL) + if (chan->end == NULL) { pr_debug("dma%d: %s: %p not empty, and chan->end==NULL?\n", chan->number, __func__, chan); - - chan->end->next = buf; - chan->end = buf; + } else { + chan->end->next = buf; + chan->end = buf; + } } /* if necessary, update the next buffer field */ -- cgit v0.10.2 From 8b41669ceba0c2d4c09d69ccb9a3458953dae784 Mon Sep 17 00:00:00 2001 From: Kalle Jokiniemi Date: Tue, 16 Oct 2012 17:59:35 +0300 Subject: mfd: twl4030: Fix chained irq handling on resume from suspend The irqs are enabled one-by-one in pm core resume_noirq phase. This leads to situation where the twl4030 primary interrupt handler (PIH) is enabled before the chained secondary handlers (SIH). As the PIH cannot clear the pending interrupt, and SIHs have not been enabled yet, a flood of interrupts hangs the device. Fixed the issue by setting the SIH irqs with IRQF_EARLY_RESUME flags, so they get enabled before the PIH. Signed-off-by: Kalle Jokiniemi Acked-by: Kevin Hilman Signed-off-by: Samuel Ortiz diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c index ad733d7..cdd1173 100644 --- a/drivers/mfd/twl4030-irq.c +++ b/drivers/mfd/twl4030-irq.c @@ -672,7 +672,8 @@ int twl4030_sih_setup(struct device *dev, int module, int irq_base) irq = sih_mod + twl4030_irq_base; irq_set_handler_data(irq, agent); agent->irq_name = kasprintf(GFP_KERNEL, "twl4030_%s", sih->name); - status = request_threaded_irq(irq, NULL, handle_twl4030_sih, 0, + status = request_threaded_irq(irq, NULL, handle_twl4030_sih, + IRQF_EARLY_RESUME, agent->irq_name ?: sih->name, NULL); dev_info(dev, "%s (irq %d) chaining IRQs %d..%d\n", sih->name, -- cgit v0.10.2 From f36c374782e40a3812f729838b5b80d2ce601725 Mon Sep 17 00:00:00 2001 From: Ian Campbell Date: Wed, 21 Nov 2012 02:02:16 +0000 Subject: xen/netfront: handle compound page fragments on transmit An SKB paged fragment can consist of a compound page with order > 0. However the netchannel protocol deals only in PAGE_SIZE frames. Handle this in xennet_make_frags by iterating over the frames which make up the page. This is the netfront equivalent to 6a8ed462f16b for netback. Signed-off-by: Ian Campbell Cc: netdev@vger.kernel.org Cc: xen-devel@lists.xen.org Cc: Eric Dumazet Cc: Konrad Rzeszutek Wilk Cc: ANNIE LI Cc: Sander Eikelenboom Cc: Stefan Bader Acked-by: Eric Dumazet Acked-by: Konrad Rzeszutek Wilk Signed-off-by: David S. Miller diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index caa0110..fc24eb9 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -452,29 +452,85 @@ static void xennet_make_frags(struct sk_buff *skb, struct net_device *dev, /* Grant backend access to each skb fragment page. */ for (i = 0; i < frags; i++) { skb_frag_t *frag = skb_shinfo(skb)->frags + i; + struct page *page = skb_frag_page(frag); - tx->flags |= XEN_NETTXF_more_data; + len = skb_frag_size(frag); + offset = frag->page_offset; - id = get_id_from_freelist(&np->tx_skb_freelist, np->tx_skbs); - np->tx_skbs[id].skb = skb_get(skb); - tx = RING_GET_REQUEST(&np->tx, prod++); - tx->id = id; - ref = gnttab_claim_grant_reference(&np->gref_tx_head); - BUG_ON((signed short)ref < 0); + /* Data must not cross a page boundary. */ + BUG_ON(len + offset > PAGE_SIZE<xbdev->otherend_id, - mfn, GNTMAP_readonly); + /* Skip unused frames from start of page */ + page += offset >> PAGE_SHIFT; + offset &= ~PAGE_MASK; - tx->gref = np->grant_tx_ref[id] = ref; - tx->offset = frag->page_offset; - tx->size = skb_frag_size(frag); - tx->flags = 0; + while (len > 0) { + unsigned long bytes; + + BUG_ON(offset >= PAGE_SIZE); + + bytes = PAGE_SIZE - offset; + if (bytes > len) + bytes = len; + + tx->flags |= XEN_NETTXF_more_data; + + id = get_id_from_freelist(&np->tx_skb_freelist, + np->tx_skbs); + np->tx_skbs[id].skb = skb_get(skb); + tx = RING_GET_REQUEST(&np->tx, prod++); + tx->id = id; + ref = gnttab_claim_grant_reference(&np->gref_tx_head); + BUG_ON((signed short)ref < 0); + + mfn = pfn_to_mfn(page_to_pfn(page)); + gnttab_grant_foreign_access_ref(ref, + np->xbdev->otherend_id, + mfn, GNTMAP_readonly); + + tx->gref = np->grant_tx_ref[id] = ref; + tx->offset = offset; + tx->size = bytes; + tx->flags = 0; + + offset += bytes; + len -= bytes; + + /* Next frame */ + if (offset == PAGE_SIZE && len) { + BUG_ON(!PageCompound(page)); + page++; + offset = 0; + } + } } np->tx.req_prod_pvt = prod; } +/* + * Count how many ring slots are required to send the frags of this + * skb. Each frag might be a compound page. + */ +static int xennet_count_skb_frag_slots(struct sk_buff *skb) +{ + int i, frags = skb_shinfo(skb)->nr_frags; + int pages = 0; + + for (i = 0; i < frags; i++) { + skb_frag_t *frag = skb_shinfo(skb)->frags + i; + unsigned long size = skb_frag_size(frag); + unsigned long offset = frag->page_offset; + + /* Skip unused frames from start of page */ + offset &= ~PAGE_MASK; + + pages += PFN_UP(offset + size); + } + + return pages; +} + static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev) { unsigned short id; @@ -487,23 +543,23 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev) grant_ref_t ref; unsigned long mfn; int notify; - int frags = skb_shinfo(skb)->nr_frags; + int slots; unsigned int offset = offset_in_page(data); unsigned int len = skb_headlen(skb); unsigned long flags; - frags += DIV_ROUND_UP(offset + len, PAGE_SIZE); - if (unlikely(frags > MAX_SKB_FRAGS + 1)) { - printk(KERN_ALERT "xennet: skb rides the rocket: %d frags\n", - frags); - dump_stack(); + slots = DIV_ROUND_UP(offset + len, PAGE_SIZE) + + xennet_count_skb_frag_slots(skb); + if (unlikely(slots > MAX_SKB_FRAGS + 1)) { + net_alert_ratelimited( + "xennet: skb rides the rocket: %d slots\n", slots); goto drop; } spin_lock_irqsave(&np->tx_lock, flags); if (unlikely(!netif_carrier_ok(dev) || - (frags > 1 && !xennet_can_sg(dev)) || + (slots > 1 && !xennet_can_sg(dev)) || netif_needs_gso(skb, netif_skb_features(skb)))) { spin_unlock_irqrestore(&np->tx_lock, flags); goto drop; -- cgit v0.10.2 From 0e376bd0b791ac6ac6bdb051492df0769c840848 Mon Sep 17 00:00:00 2001 From: Sarveshwar Bandi Date: Wed, 21 Nov 2012 04:35:03 +0000 Subject: bonding: Bonding driver does not consider the gso_max_size/gso_max_segs setting of slave devices. Patch sets the lowest gso_max_size and gso_max_segs values of the slave devices during enslave and detach. Signed-off-by: Sarveshwar Bandi Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index b2530b0..5f5b69f 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1379,6 +1379,8 @@ static void bond_compute_features(struct bonding *bond) struct net_device *bond_dev = bond->dev; netdev_features_t vlan_features = BOND_VLAN_FEATURES; unsigned short max_hard_header_len = ETH_HLEN; + unsigned int gso_max_size = GSO_MAX_SIZE; + u16 gso_max_segs = GSO_MAX_SEGS; int i; unsigned int flags, dst_release_flag = IFF_XMIT_DST_RELEASE; @@ -1394,11 +1396,16 @@ static void bond_compute_features(struct bonding *bond) dst_release_flag &= slave->dev->priv_flags; if (slave->dev->hard_header_len > max_hard_header_len) max_hard_header_len = slave->dev->hard_header_len; + + gso_max_size = min(gso_max_size, slave->dev->gso_max_size); + gso_max_segs = min(gso_max_segs, slave->dev->gso_max_segs); } done: bond_dev->vlan_features = vlan_features; bond_dev->hard_header_len = max_hard_header_len; + bond_dev->gso_max_segs = gso_max_segs; + netif_set_gso_max_size(bond_dev, gso_max_size); flags = bond_dev->priv_flags & ~IFF_XMIT_DST_RELEASE; bond_dev->priv_flags = flags | dst_release_flag; -- cgit v0.10.2 From 916492b1e1a186260951831c53a53d8a448dc026 Mon Sep 17 00:00:00 2001 From: Chun-Yi Lee Date: Wed, 21 Nov 2012 11:26:09 +0000 Subject: sign-file: fix the perl warning message when extracting ASN.1 There have the following warning message when running modules install for sign ko files: # make modules_install ... INSTALL drivers/input/touchscreen/pcap_ts.ko Found = in conditional, should be == at scripts/sign-file line 164. Found = in conditional, should be == at scripts/sign-file line 161. Found = in conditional, should be == at scripts/sign-file line 159. This patch change replace '=' by '==' in elsif conditions for avoid the above warning messages. Signed-off-by: Chun-Yi Lee Signed-off-by: David Howells Signed-off-by: Linus Torvalds diff --git a/scripts/sign-file b/scripts/sign-file index 87ca59d..974a20b 100755 --- a/scripts/sign-file +++ b/scripts/sign-file @@ -156,12 +156,12 @@ sub asn1_extract($$@) if ($l == 0x1) { $len = unpack("C", substr(${$cursor->[2]}, $cursor->[0], 1)); - } elsif ($l = 0x2) { + } elsif ($l == 0x2) { $len = unpack("n", substr(${$cursor->[2]}, $cursor->[0], 2)); - } elsif ($l = 0x3) { + } elsif ($l == 0x3) { $len = unpack("C", substr(${$cursor->[2]}, $cursor->[0], 1)) << 16; $len = unpack("n", substr(${$cursor->[2]}, $cursor->[0] + 1, 2)); - } elsif ($l = 0x4) { + } elsif ($l == 0x4) { $len = unpack("N", substr(${$cursor->[2]}, $cursor->[0], 4)); } else { die $x509, ": ", $cursor->[0], ": ASN.1 element too long (", $l, ")\n"; -- cgit v0.10.2 From 403f43c937d24832b18524f65415c0bbba6b5064 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Wed, 21 Nov 2012 02:34:45 +0000 Subject: team: bcast: convert return value of team_dev_queue_xmit() to bool correctly The thing is that team_dev_queue_xmit() returns NET_XMIT_* or -E*. bc_trasmit() should return true in case all went well. So use ! to get correct retval from team_dev_queue_xmit() result. This bug caused iface statistics to be badly computed. This bug was introduced by: team: add broadcast mode (5fc889911a99043a97da1daa0d010ad72cbc3042) Reported-by: Dan Carpenter Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller diff --git a/drivers/net/team/team_mode_broadcast.c b/drivers/net/team/team_mode_broadcast.c index 9db0171..c5db428 100644 --- a/drivers/net/team/team_mode_broadcast.c +++ b/drivers/net/team/team_mode_broadcast.c @@ -29,8 +29,8 @@ static bool bc_transmit(struct team *team, struct sk_buff *skb) if (last) { skb2 = skb_clone(skb, GFP_ATOMIC); if (skb2) { - ret = team_dev_queue_xmit(team, last, - skb2); + ret = !team_dev_queue_xmit(team, last, + skb2); if (!sum_ret) sum_ret = ret; } @@ -39,7 +39,7 @@ static bool bc_transmit(struct team *team, struct sk_buff *skb) } } if (last) { - ret = team_dev_queue_xmit(team, last, skb); + ret = !team_dev_queue_xmit(team, last, skb); if (!sum_ret) sum_ret = ret; } -- cgit v0.10.2 From 5d3df935426271016b895aecaa247101b4bfa35e Mon Sep 17 00:00:00 2001 From: Russell King - ARM Linux Date: Sun, 18 Nov 2012 16:29:44 +0000 Subject: Dove: Attempt to fix PMU/RTC interrupts Fix the acknowledgement of PMU interrupts on Dove: some Dove hardware has not been sensibly designed so that interrupts can be handled in a race free manner. The PMU is one such instance. The pending (aka 'cause') register is a bunch of RW bits, meaning that these bits can be both cleared and set by software (confirmed on the Armada-510 on the cubox.) Hardware sets the appropriate bit when an interrupt is asserted, and software is required to clear the bits which are to be processed. If we write ~(1 << bit), then we end up asserting every other interrupt except the one we're processing. So, we need to do a read-modify-write cycle to clear the asserted bit. However, any interrupts which occur in the middle of this cycle will also be written back as zero, which will also clear the new interrupts. The upshot of this is: there is _no_ way to safely clear down interrupts in this register (and other similarly behaving interrupt pending registers on this device.) The patch below at least stops us creating new interrupts. Signed-off-by: Russell King Cc: stable@vger.kernel.org Signed-off-by: Jason Cooper diff --git a/arch/arm/mach-dove/irq.c b/arch/arm/mach-dove/irq.c index 0877115..bc4344a 100644 --- a/arch/arm/mach-dove/irq.c +++ b/arch/arm/mach-dove/irq.c @@ -46,8 +46,20 @@ static void pmu_irq_ack(struct irq_data *d) int pin = irq_to_pmu(d->irq); u32 u; + /* + * The PMU mask register is not RW0C: it is RW. This means that + * the bits take whatever value is written to them; if you write + * a '1', you will set the interrupt. + * + * Unfortunately this means there is NO race free way to clear + * these interrupts. + * + * So, let's structure the code so that the window is as small as + * possible. + */ u = ~(1 << (pin & 31)); - writel(u, PMU_INTERRUPT_CAUSE); + u &= readl_relaxed(PMU_INTERRUPT_CAUSE); + writel_relaxed(u, PMU_INTERRUPT_CAUSE); } static struct irq_chip pmu_irq_chip = { -- cgit v0.10.2 From d356cf5a74afa32b40decca3c9dd88bc3cd63eb5 Mon Sep 17 00:00:00 2001 From: Russell King - ARM Linux Date: Sun, 18 Nov 2012 16:39:32 +0000 Subject: Dove: Fix irq_to_pmu() PMU interrupts start at IRQ_DOVE_PMU_START, not IRQ_DOVE_PMU_START + 1. Fix the condition. (It may have been less likely to occur had the code been written "if (irq >= IRQ_DOVE_PMU_START" which imho is the easier to understand notation, and matches the normal way of thinking about these things.) Signed-off-by: Russell King Cc: stable@vger.kernel.org Signed-off-by: Jason Cooper diff --git a/arch/arm/mach-dove/include/mach/pm.h b/arch/arm/mach-dove/include/mach/pm.h index 7bcd0df..b47f750 100644 --- a/arch/arm/mach-dove/include/mach/pm.h +++ b/arch/arm/mach-dove/include/mach/pm.h @@ -63,7 +63,7 @@ static inline int pmu_to_irq(int pin) static inline int irq_to_pmu(int irq) { - if (IRQ_DOVE_PMU_START < irq && irq < NR_IRQS) + if (IRQ_DOVE_PMU_START <= irq && irq < NR_IRQS) return irq - IRQ_DOVE_PMU_START; return -EINVAL; -- cgit v0.10.2 From 1dc831bf53fddcc6443f74a39e72db5bcea4f15d Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe Date: Wed, 21 Nov 2012 00:19:06 -0700 Subject: ARM: Kirkwood: Update PCI-E fixup - The code relies on rc_pci_fixup being called, which only happens when CONFIG_PCI_QUIRKS is enabled, so add that to Kconfig. Omitting this causes a booting failure with a non-obvious cause. - Update rc_pci_fixup to set the class properly, copying the more modern style from other places - Correct the rc_pci_fixup comment Signed-off-by: Jason Gunthorpe Cc: stable@vger.kernel.org Signed-off-by: Jason Cooper diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index ade7e92..9759fec 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -547,6 +547,7 @@ config ARCH_KIRKWOOD select CPU_FEROCEON select GENERIC_CLOCKEVENTS select PCI + select PCI_QUIRKS select PLAT_ORION_LEGACY help Support for the following Marvell Kirkwood series SoCs: diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c index ec54491..74fc5a0 100644 --- a/arch/arm/mach-kirkwood/pcie.c +++ b/arch/arm/mach-kirkwood/pcie.c @@ -207,14 +207,19 @@ static int __init kirkwood_pcie_setup(int nr, struct pci_sys_data *sys) return 1; } +/* + * The root complex has a hardwired class of PCI_CLASS_MEMORY_OTHER, when it + * is operating as a root complex this needs to be switched to + * PCI_CLASS_BRIDGE_HOST or Linux will errantly try to process the BAR's on + * the device. Decoding setup is handled by the orion code. + */ static void __devinit rc_pci_fixup(struct pci_dev *dev) { - /* - * Prevent enumeration of root complex. - */ if (dev->bus->parent == NULL && dev->devfn == 0) { int i; + dev->class &= 0xff; + dev->class |= PCI_CLASS_BRIDGE_HOST << 8; for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { dev->resource[i].start = 0; dev->resource[i].end = 0; -- cgit v0.10.2 From 809396474f41fb6e7e676e298d79856c5e02d755 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 16 Oct 2012 05:46:21 -0300 Subject: [media] adv7604: cleanup references Signed-off-by: Mats Randgaard Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c index 109bc9b..75a8395 100644 --- a/drivers/media/i2c/adv7604.c +++ b/drivers/media/i2c/adv7604.c @@ -1123,7 +1123,7 @@ static int adv7604_query_dv_timings(struct v4l2_subdev *sd, adv7604_fill_optional_dv_timings_fields(sd, timings); } else { /* find format - * Since LCVS values are inaccurate (REF_03, page 275-276), + * Since LCVS values are inaccurate [REF_03, p. 275-276], * stdi2dv_timings() is called with lcvs +-1 if the first attempt fails. */ if (!stdi2dv_timings(sd, &stdi, timings)) @@ -1712,9 +1712,9 @@ static int adv7604_core_init(struct v4l2_subdev *sd) cp_write(sd, 0xba, (pdata->hdmi_free_run_mode << 1) | 0x01); /* HDMI free run */ cp_write(sd, 0xf3, 0xdc); /* Low threshold to enter/exit free run mode */ cp_write(sd, 0xf9, 0x23); /* STDI ch. 1 - LCVS change threshold - - ADI recommended setting [REF_01 c. 2.3.3] */ + ADI recommended setting [REF_01, c. 2.3.3] */ cp_write(sd, 0x45, 0x23); /* STDI ch. 2 - LCVS change threshold - - ADI recommended setting [REF_01 c. 2.3.3] */ + ADI recommended setting [REF_01, c. 2.3.3] */ cp_write(sd, 0xc9, 0x2d); /* use prim_mode and vid_std as free run resolution for digital formats */ -- cgit v0.10.2 From 6b0d5d344a78d43957a9f49c549b6f3aa2dc2082 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 16 Oct 2012 06:40:45 -0300 Subject: [media] adv7604: Replace prim_mode by mode Changes the way the primary mode is handled: - Remove it from platform_data since it doesn't belong there. - Add a new mode enum for use with s_routing. - Collapse the two HDMI modes into one HDMI mode: when setting up the timings manually we do not need to select HDMI_COMP mode. That's only needed when selecting a preset. This patch prepares for the next step where we switch to using the presets where available. Signed-off-by: Mats Randgaard Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c index 75a8395..74a18c0 100644 --- a/drivers/media/i2c/adv7604.c +++ b/drivers/media/i2c/adv7604.c @@ -53,8 +53,7 @@ MODULE_LICENSE("GPL"); /* ADV7604 system clock frequency */ #define ADV7604_fsc (28636360) -#define DIGITAL_INPUT ((state->prim_mode == ADV7604_PRIM_MODE_HDMI_COMP) || \ - (state->prim_mode == ADV7604_PRIM_MODE_HDMI_GR)) +#define DIGITAL_INPUT (state->mode == ADV7604_MODE_HDMI) /* ********************************************************************** @@ -68,7 +67,7 @@ struct adv7604_state { struct v4l2_subdev sd; struct media_pad pad; struct v4l2_ctrl_handler hdl; - enum adv7604_prim_mode prim_mode; + enum adv7604_mode mode; struct v4l2_dv_timings timings; u8 edid[256]; unsigned edid_blocks; @@ -738,12 +737,7 @@ static void set_rgb_quantization_range(struct v4l2_subdev *sd) switch (state->rgb_quantization_range) { case V4L2_DV_RGB_RANGE_AUTO: /* automatic */ - if ((hdmi_read(sd, 0x05) & 0x80) || - (state->prim_mode == ADV7604_PRIM_MODE_COMP) || - (state->prim_mode == ADV7604_PRIM_MODE_RGB)) { - /* receiving HDMI or analog signal */ - io_write_and_or(sd, 0x02, 0x0f, 0xf0); - } else { + if (DIGITAL_INPUT && !(hdmi_read(sd, 0x05) & 0x80)) { /* receiving DVI-D signal */ /* ADV7604 selects RGB limited range regardless of @@ -756,6 +750,9 @@ static void set_rgb_quantization_range(struct v4l2_subdev *sd) /* RGB full range (0-255) */ io_write_and_or(sd, 0x02, 0x0f, 0x10); } + } else { + /* receiving HDMI or analog signal, set automode */ + io_write_and_or(sd, 0x02, 0x0f, 0xf0); } break; case V4L2_DV_RGB_RANGE_LIMITED: @@ -1203,24 +1200,25 @@ static int adv7604_g_dv_timings(struct v4l2_subdev *sd, return 0; } -static void enable_input(struct v4l2_subdev *sd, enum adv7604_prim_mode prim_mode) +static void enable_input(struct v4l2_subdev *sd) { - switch (prim_mode) { - case ADV7604_PRIM_MODE_COMP: - case ADV7604_PRIM_MODE_RGB: + struct adv7604_state *state = to_state(sd); + + switch (state->mode) { + case ADV7604_MODE_COMP: + case ADV7604_MODE_GR: /* enable */ io_write(sd, 0x15, 0xb0); /* Disable Tristate of Pins (no audio) */ break; - case ADV7604_PRIM_MODE_HDMI_COMP: - case ADV7604_PRIM_MODE_HDMI_GR: + case ADV7604_MODE_HDMI: /* enable */ hdmi_write(sd, 0x1a, 0x0a); /* Unmute audio */ hdmi_write(sd, 0x01, 0x00); /* Enable HDMI clock terminators */ io_write(sd, 0x15, 0xa0); /* Disable Tristate of Pins */ break; default: - v4l2_err(sd, "%s: reserved primary mode 0x%0x\n", - __func__, prim_mode); + v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", + __func__, state->mode); break; } } @@ -1233,11 +1231,13 @@ static void disable_input(struct v4l2_subdev *sd) hdmi_write(sd, 0x01, 0x78); /* Disable HDMI clock terminators */ } -static void select_input(struct v4l2_subdev *sd, enum adv7604_prim_mode prim_mode) +static void select_input(struct v4l2_subdev *sd) { - switch (prim_mode) { - case ADV7604_PRIM_MODE_COMP: - case ADV7604_PRIM_MODE_RGB: + struct adv7604_state *state = to_state(sd); + + switch (state->mode) { + case ADV7604_MODE_COMP: + case ADV7604_MODE_GR: /* set mode and select free run resolution */ io_write(sd, 0x00, 0x07); /* video std */ io_write(sd, 0x01, 0x02); /* prim mode */ @@ -1271,13 +1271,10 @@ static void select_input(struct v4l2_subdev *sd, enum adv7604_prim_mode prim_mod cp_write(sd, 0x40, 0x5c); /* CP core pre-gain control. Graphics mode */ break; - case ADV7604_PRIM_MODE_HDMI_COMP: - case ADV7604_PRIM_MODE_HDMI_GR: + case ADV7604_MODE_HDMI: /* set mode and select free run resolution */ - /* video std */ - io_write(sd, 0x00, - (prim_mode == ADV7604_PRIM_MODE_HDMI_GR) ? 0x02 : 0x1e); - io_write(sd, 0x01, prim_mode); /* prim mode */ + io_write(sd, 0x00, 0x02); /* video std */ + io_write(sd, 0x01, 0x06); /* prim mode */ /* disable embedded syncs for auto graphics mode */ cp_write_and_or(sd, 0x81, 0xef, 0x00); @@ -1309,7 +1306,8 @@ static void select_input(struct v4l2_subdev *sd, enum adv7604_prim_mode prim_mod break; default: - v4l2_err(sd, "%s: reserved primary mode 0x%0x\n", __func__, prim_mode); + v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", + __func__, state->mode); break; } } @@ -1321,26 +1319,13 @@ static int adv7604_s_routing(struct v4l2_subdev *sd, v4l2_dbg(2, debug, sd, "%s: input %d", __func__, input); - switch (input) { - case 0: - /* TODO select HDMI_COMP or HDMI_GR */ - state->prim_mode = ADV7604_PRIM_MODE_HDMI_COMP; - break; - case 1: - state->prim_mode = ADV7604_PRIM_MODE_RGB; - break; - case 2: - state->prim_mode = ADV7604_PRIM_MODE_COMP; - break; - default: - return -EINVAL; - } + state->mode = input; disable_input(sd); - select_input(sd, state->prim_mode); + select_input(sd); - enable_input(sd, state->prim_mode); + enable_input(sd); return 0; } @@ -1724,11 +1709,6 @@ static int adv7604_core_init(struct v4l2_subdev *sd) afe_write(sd, 0x02, pdata->ain_sel); /* Select analog input muxing mode */ io_write_and_or(sd, 0x30, ~(1 << 4), pdata->output_bus_lsb_to_msb << 4); - state->prim_mode = pdata->prim_mode; - select_input(sd, pdata->prim_mode); - - enable_input(sd, pdata->prim_mode); - /* interrupts */ io_write(sd, 0x40, 0xc2); /* Configure INT1 */ io_write(sd, 0x41, 0xd7); /* STDI irq for any change, disable INT2 */ diff --git a/include/media/adv7604.h b/include/media/adv7604.h index 171b957..dc004bc 100644 --- a/include/media/adv7604.h +++ b/include/media/adv7604.h @@ -40,14 +40,6 @@ enum adv7604_op_ch_sel { ADV7604_OP_CH_SEL_RBG = 5, }; -/* Primary mode (IO register 0x01, [3:0]) */ -enum adv7604_prim_mode { - ADV7604_PRIM_MODE_COMP = 1, - ADV7604_PRIM_MODE_RGB = 2, - ADV7604_PRIM_MODE_HDMI_COMP = 5, - ADV7604_PRIM_MODE_HDMI_GR = 6, -}; - /* Input Color Space (IO register 0x02, [7:4]) */ enum adv7604_inp_color_space { ADV7604_INP_COLOR_SPACE_LIM_RGB = 0, @@ -103,9 +95,6 @@ struct adv7604_platform_data { /* Bus rotation and reordering */ enum adv7604_op_ch_sel op_ch_sel; - /* Primary mode */ - enum adv7604_prim_mode prim_mode; - /* Select output format */ enum adv7604_op_format_sel op_format_sel; @@ -142,6 +131,16 @@ struct adv7604_platform_data { u8 i2c_vdp; }; +/* + * Mode of operation. + * This is used as the input argument of the s_routing video op. + */ +enum adv7604_mode { + ADV7604_MODE_COMP, + ADV7604_MODE_GR, + ADV7604_MODE_HDMI, +}; + #define V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE (V4L2_CID_DV_CLASS_BASE + 0x1000) #define V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL (V4L2_CID_DV_CLASS_BASE + 0x1001) #define V4L2_CID_ADV_RX_FREE_RUN_COLOR (V4L2_CID_DV_CLASS_BASE + 0x1002) -- cgit v0.10.2 From ccbd5bc448ec782af7d1f3f68bd450c9c38015a0 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 16 Oct 2012 10:02:05 -0300 Subject: [media] adv7604: use presets where possible Use predefined video timings (prim_mode/vid_std) when available as recommended by Analog Devices (http://ez.analog.com/message/48267#48267). Also remove 720p30 support since the ADV7604 can't handle that. (http://ez.analog.com/message/61488#61488) Signed-off-by: Mats Randgaard Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c index 74a18c0..88b7984 100644 --- a/drivers/media/i2c/adv7604.c +++ b/drivers/media/i2c/adv7604.c @@ -105,7 +105,6 @@ static const struct v4l2_dv_timings adv7604_timings[] = { V4L2_DV_BT_CEA_720X576P50, V4L2_DV_BT_CEA_1280X720P24, V4L2_DV_BT_CEA_1280X720P25, - V4L2_DV_BT_CEA_1280X720P30, V4L2_DV_BT_CEA_1280X720P50, V4L2_DV_BT_CEA_1280X720P60, V4L2_DV_BT_CEA_1920X1080P24, @@ -114,6 +113,7 @@ static const struct v4l2_dv_timings adv7604_timings[] = { V4L2_DV_BT_CEA_1920X1080P50, V4L2_DV_BT_CEA_1920X1080P60, + /* sorted by DMT ID */ V4L2_DV_BT_DMT_640X350P85, V4L2_DV_BT_DMT_640X400P85, V4L2_DV_BT_DMT_720X400P85, @@ -163,6 +163,89 @@ static const struct v4l2_dv_timings adv7604_timings[] = { { }, }; +struct adv7604_video_standards { + struct v4l2_dv_timings timings; + u8 vid_std; + u8 v_freq; +}; + +/* sorted by number of lines */ +static const struct adv7604_video_standards adv7604_prim_mode_comp[] = { + /* { V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 }, TODO flickering */ + { V4L2_DV_BT_CEA_720X576P50, 0x0b, 0x00 }, + { V4L2_DV_BT_CEA_1280X720P50, 0x19, 0x01 }, + { V4L2_DV_BT_CEA_1280X720P60, 0x19, 0x00 }, + { V4L2_DV_BT_CEA_1920X1080P24, 0x1e, 0x04 }, + { V4L2_DV_BT_CEA_1920X1080P25, 0x1e, 0x03 }, + { V4L2_DV_BT_CEA_1920X1080P30, 0x1e, 0x02 }, + { V4L2_DV_BT_CEA_1920X1080P50, 0x1e, 0x01 }, + { V4L2_DV_BT_CEA_1920X1080P60, 0x1e, 0x00 }, + /* TODO add 1920x1080P60_RB (CVT timing) */ + { }, +}; + +/* sorted by number of lines */ +static const struct adv7604_video_standards adv7604_prim_mode_gr[] = { + { V4L2_DV_BT_DMT_640X480P60, 0x08, 0x00 }, + { V4L2_DV_BT_DMT_640X480P72, 0x09, 0x00 }, + { V4L2_DV_BT_DMT_640X480P75, 0x0a, 0x00 }, + { V4L2_DV_BT_DMT_640X480P85, 0x0b, 0x00 }, + { V4L2_DV_BT_DMT_800X600P56, 0x00, 0x00 }, + { V4L2_DV_BT_DMT_800X600P60, 0x01, 0x00 }, + { V4L2_DV_BT_DMT_800X600P72, 0x02, 0x00 }, + { V4L2_DV_BT_DMT_800X600P75, 0x03, 0x00 }, + { V4L2_DV_BT_DMT_800X600P85, 0x04, 0x00 }, + { V4L2_DV_BT_DMT_1024X768P60, 0x0c, 0x00 }, + { V4L2_DV_BT_DMT_1024X768P70, 0x0d, 0x00 }, + { V4L2_DV_BT_DMT_1024X768P75, 0x0e, 0x00 }, + { V4L2_DV_BT_DMT_1024X768P85, 0x0f, 0x00 }, + { V4L2_DV_BT_DMT_1280X1024P60, 0x05, 0x00 }, + { V4L2_DV_BT_DMT_1280X1024P75, 0x06, 0x00 }, + { V4L2_DV_BT_DMT_1360X768P60, 0x12, 0x00 }, + { V4L2_DV_BT_DMT_1366X768P60, 0x13, 0x00 }, + { V4L2_DV_BT_DMT_1400X1050P60, 0x14, 0x00 }, + { V4L2_DV_BT_DMT_1400X1050P75, 0x15, 0x00 }, + { V4L2_DV_BT_DMT_1600X1200P60, 0x16, 0x00 }, /* TODO not tested */ + /* TODO add 1600X1200P60_RB (not a DMT timing) */ + { V4L2_DV_BT_DMT_1680X1050P60, 0x18, 0x00 }, + { V4L2_DV_BT_DMT_1920X1200P60_RB, 0x19, 0x00 }, /* TODO not tested */ + { }, +}; + +/* sorted by number of lines */ +static const struct adv7604_video_standards adv7604_prim_mode_hdmi_comp[] = { + { V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 }, + { V4L2_DV_BT_CEA_720X576P50, 0x0b, 0x00 }, + { V4L2_DV_BT_CEA_1280X720P50, 0x13, 0x01 }, + { V4L2_DV_BT_CEA_1280X720P60, 0x13, 0x00 }, + { V4L2_DV_BT_CEA_1920X1080P24, 0x1e, 0x04 }, + { V4L2_DV_BT_CEA_1920X1080P25, 0x1e, 0x03 }, + { V4L2_DV_BT_CEA_1920X1080P30, 0x1e, 0x02 }, + { V4L2_DV_BT_CEA_1920X1080P50, 0x1e, 0x01 }, + { V4L2_DV_BT_CEA_1920X1080P60, 0x1e, 0x00 }, + { }, +}; + +/* sorted by number of lines */ +static const struct adv7604_video_standards adv7604_prim_mode_hdmi_gr[] = { + { V4L2_DV_BT_DMT_640X480P60, 0x08, 0x00 }, + { V4L2_DV_BT_DMT_640X480P72, 0x09, 0x00 }, + { V4L2_DV_BT_DMT_640X480P75, 0x0a, 0x00 }, + { V4L2_DV_BT_DMT_640X480P85, 0x0b, 0x00 }, + { V4L2_DV_BT_DMT_800X600P56, 0x00, 0x00 }, + { V4L2_DV_BT_DMT_800X600P60, 0x01, 0x00 }, + { V4L2_DV_BT_DMT_800X600P72, 0x02, 0x00 }, + { V4L2_DV_BT_DMT_800X600P75, 0x03, 0x00 }, + { V4L2_DV_BT_DMT_800X600P85, 0x04, 0x00 }, + { V4L2_DV_BT_DMT_1024X768P60, 0x0c, 0x00 }, + { V4L2_DV_BT_DMT_1024X768P70, 0x0d, 0x00 }, + { V4L2_DV_BT_DMT_1024X768P75, 0x0e, 0x00 }, + { V4L2_DV_BT_DMT_1024X768P85, 0x0f, 0x00 }, + { V4L2_DV_BT_DMT_1280X1024P60, 0x05, 0x00 }, + { V4L2_DV_BT_DMT_1280X1024P75, 0x06, 0x00 }, + { }, +}; + /* ----------------------------------------------------------------------- */ static inline struct adv7604_state *to_state(struct v4l2_subdev *sd) @@ -671,64 +754,144 @@ static int adv7604_s_detect_tx_5v_ctrl(struct v4l2_subdev *sd) ((io_read(sd, 0x6f) & 0x10) >> 4)); } -static void configure_free_run(struct v4l2_subdev *sd, const struct v4l2_bt_timings *timings) +static int find_and_set_predefined_video_timings(struct v4l2_subdev *sd, + u8 prim_mode, + const struct adv7604_video_standards *predef_vid_timings, + const struct v4l2_dv_timings *timings) +{ + struct adv7604_state *state = to_state(sd); + int i; + + for (i = 0; predef_vid_timings[i].timings.bt.width; i++) { + if (!v4l_match_dv_timings(timings, &predef_vid_timings[i].timings, + DIGITAL_INPUT ? 250000 : 1000000)) + continue; + io_write(sd, 0x00, predef_vid_timings[i].vid_std); /* video std */ + io_write(sd, 0x01, (predef_vid_timings[i].v_freq << 4) + + prim_mode); /* v_freq and prim mode */ + return 0; + } + + return -1; +} + +static int configure_predefined_video_timings(struct v4l2_subdev *sd, + struct v4l2_dv_timings *timings) { + struct adv7604_state *state = to_state(sd); + int err; + + v4l2_dbg(1, debug, sd, "%s", __func__); + + /* reset to default values */ + io_write(sd, 0x16, 0x43); + io_write(sd, 0x17, 0x5a); + /* disable embedded syncs for auto graphics mode */ + cp_write_and_or(sd, 0x81, 0xef, 0x00); + cp_write(sd, 0x8f, 0x00); + cp_write(sd, 0x90, 0x00); + cp_write(sd, 0xa2, 0x00); + cp_write(sd, 0xa3, 0x00); + cp_write(sd, 0xa4, 0x00); + cp_write(sd, 0xa5, 0x00); + cp_write(sd, 0xa6, 0x00); + cp_write(sd, 0xa7, 0x00); + cp_write(sd, 0xab, 0x00); + cp_write(sd, 0xac, 0x00); + + switch (state->mode) { + case ADV7604_MODE_COMP: + case ADV7604_MODE_GR: + err = find_and_set_predefined_video_timings(sd, + 0x01, adv7604_prim_mode_comp, timings); + if (err) + err = find_and_set_predefined_video_timings(sd, + 0x02, adv7604_prim_mode_gr, timings); + break; + case ADV7604_MODE_HDMI: + err = find_and_set_predefined_video_timings(sd, + 0x05, adv7604_prim_mode_hdmi_comp, timings); + if (err) + err = find_and_set_predefined_video_timings(sd, + 0x06, adv7604_prim_mode_hdmi_gr, timings); + break; + default: + v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", + __func__, state->mode); + err = -1; + break; + } + + + return err; +} + +static void configure_custom_video_timings(struct v4l2_subdev *sd, + const struct v4l2_bt_timings *bt) +{ + struct adv7604_state *state = to_state(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); - u32 width = htotal(timings); - u32 height = vtotal(timings); - u16 ch1_fr_ll = (((u32)timings->pixelclock / 100) > 0) ? - ((width * (ADV7604_fsc / 100)) / ((u32)timings->pixelclock / 100)) : 0; + u32 width = htotal(bt); + u32 height = vtotal(bt); + u16 cp_start_sav = bt->hsync + bt->hbackporch - 4; + u16 cp_start_eav = width - bt->hfrontporch; + u16 cp_start_vbi = height - bt->vfrontporch; + u16 cp_end_vbi = bt->vsync + bt->vbackporch; + u16 ch1_fr_ll = (((u32)bt->pixelclock / 100) > 0) ? + ((width * (ADV7604_fsc / 100)) / ((u32)bt->pixelclock / 100)) : 0; + const u8 pll[2] = { + 0xc0 | ((width >> 8) & 0x1f), + width & 0xff + }; v4l2_dbg(2, debug, sd, "%s\n", __func__); - cp_write(sd, 0x8f, (ch1_fr_ll >> 8) & 0x7); /* CH1_FR_LL */ - cp_write(sd, 0x90, ch1_fr_ll & 0xff); /* CH1_FR_LL */ - cp_write(sd, 0xab, (height >> 4) & 0xff); /* CP_LCOUNT_MAX */ - cp_write(sd, 0xac, (height & 0x0f) << 4); /* CP_LCOUNT_MAX */ - /* TODO support interlaced */ - cp_write(sd, 0x91, 0x10); /* INTERLACED */ - - /* Should only be set in auto-graphics mode [REF_02 p. 91-92] */ - if ((io_read(sd, 0x00) == 0x07) && (io_read(sd, 0x01) == 0x02)) { - u16 cp_start_sav, cp_start_eav, cp_start_vbi, cp_end_vbi; - const u8 pll[2] = { - (0xc0 | ((width >> 8) & 0x1f)), - (width & 0xff) - }; + switch (state->mode) { + case ADV7604_MODE_COMP: + case ADV7604_MODE_GR: + /* auto graphics */ + io_write(sd, 0x00, 0x07); /* video std */ + io_write(sd, 0x01, 0x02); /* prim mode */ + /* enable embedded syncs for auto graphics mode */ + cp_write_and_or(sd, 0x81, 0xef, 0x10); + /* Should only be set in auto-graphics mode [REF_02, p. 91-92] */ /* setup PLL_DIV_MAN_EN and PLL_DIV_RATIO */ /* IO-map reg. 0x16 and 0x17 should be written in sequence */ if (adv_smbus_write_i2c_block_data(client, 0x16, 2, pll)) { v4l2_err(sd, "writing to reg 0x16 and 0x17 failed\n"); - return; + break; } /* active video - horizontal timing */ - cp_start_sav = timings->hsync + timings->hbackporch - 4; - cp_start_eav = width - timings->hfrontporch; cp_write(sd, 0xa2, (cp_start_sav >> 4) & 0xff); - cp_write(sd, 0xa3, ((cp_start_sav & 0x0f) << 4) | ((cp_start_eav >> 8) & 0x0f)); + cp_write(sd, 0xa3, ((cp_start_sav & 0x0f) << 4) | + ((cp_start_eav >> 8) & 0x0f)); cp_write(sd, 0xa4, cp_start_eav & 0xff); /* active video - vertical timing */ - cp_start_vbi = height - timings->vfrontporch; - cp_end_vbi = timings->vsync + timings->vbackporch; cp_write(sd, 0xa5, (cp_start_vbi >> 4) & 0xff); - cp_write(sd, 0xa6, ((cp_start_vbi & 0xf) << 4) | ((cp_end_vbi >> 8) & 0xf)); + cp_write(sd, 0xa6, ((cp_start_vbi & 0xf) << 4) | + ((cp_end_vbi >> 8) & 0xf)); cp_write(sd, 0xa7, cp_end_vbi & 0xff); - } else { - /* reset to default values */ - io_write(sd, 0x16, 0x43); - io_write(sd, 0x17, 0x5a); - cp_write(sd, 0xa2, 0x00); - cp_write(sd, 0xa3, 0x00); - cp_write(sd, 0xa4, 0x00); - cp_write(sd, 0xa5, 0x00); - cp_write(sd, 0xa6, 0x00); - cp_write(sd, 0xa7, 0x00); + break; + case ADV7604_MODE_HDMI: + /* set default prim_mode/vid_std for HDMI + accoring to [REF_03, c. 4.2] */ + io_write(sd, 0x00, 0x02); /* video std */ + io_write(sd, 0x01, 0x06); /* prim mode */ + break; + default: + v4l2_dbg(2, debug, sd, "%s: Unknown mode %d\n", + __func__, state->mode); + break; } -} + cp_write(sd, 0x8f, (ch1_fr_ll >> 8) & 0x7); + cp_write(sd, 0x90, ch1_fr_ll & 0xff); + cp_write(sd, 0xab, (height >> 4) & 0xff); + cp_write(sd, 0xac, (height & 0x0f) << 4); +} static void set_rgb_quantization_range(struct v4l2_subdev *sd) { @@ -964,8 +1127,10 @@ static int stdi2dv_timings(struct v4l2_subdev *sd, state->aspect_ratio, timings)) return 0; - v4l2_dbg(2, debug, sd, "%s: No format candidate found for lcf=%d, bl = %d\n", - __func__, stdi->lcf, stdi->bl); + v4l2_dbg(2, debug, sd, + "%s: No format candidate found for lcvs = %d, lcf=%d, bl = %d, %chsync, %cvsync\n", + __func__, stdi->lcvs, stdi->lcf, stdi->bl, + stdi->hs_pol, stdi->vs_pol); return -1; } @@ -1163,6 +1328,7 @@ static int adv7604_s_dv_timings(struct v4l2_subdev *sd, { struct adv7604_state *state = to_state(sd); struct v4l2_bt_timings *bt; + int err; if (!timings) return -EINVAL; @@ -1175,12 +1341,20 @@ static int adv7604_s_dv_timings(struct v4l2_subdev *sd, __func__, (u32)bt->pixelclock); return -ERANGE; } + adv7604_fill_optional_dv_timings_fields(sd, timings); state->timings = *timings; - /* freerun */ - configure_free_run(sd, bt); + cp_write(sd, 0x91, bt->interlaced ? 0x50 : 0x10); + + /* Use prim_mode and vid_std when available */ + err = configure_predefined_video_timings(sd, timings); + if (err) { + /* custom settings when the video format + does not have prim_mode/vid_std */ + configure_custom_video_timings(sd, bt); + } set_rgb_quantization_range(sd); @@ -1238,12 +1412,6 @@ static void select_input(struct v4l2_subdev *sd) switch (state->mode) { case ADV7604_MODE_COMP: case ADV7604_MODE_GR: - /* set mode and select free run resolution */ - io_write(sd, 0x00, 0x07); /* video std */ - io_write(sd, 0x01, 0x02); /* prim mode */ - /* enable embedded syncs for auto graphics mode */ - cp_write_and_or(sd, 0x81, 0xef, 0x10); - /* reset ADI recommended settings for HDMI: */ /* "ADV7604 Register Settings Recommendations (rev. 2.5, June 2010)" p. 4. */ hdmi_write(sd, 0x0d, 0x04); /* HDMI filter optimization */ @@ -1272,12 +1440,6 @@ static void select_input(struct v4l2_subdev *sd) break; case ADV7604_MODE_HDMI: - /* set mode and select free run resolution */ - io_write(sd, 0x00, 0x02); /* video std */ - io_write(sd, 0x01, 0x06); /* prim mode */ - /* disable embedded syncs for auto graphics mode */ - cp_write_and_or(sd, 0x81, 0xef, 0x00); - /* set ADI recommended settings for HDMI: */ /* "ADV7604 Register Settings Recommendations (rev. 2.5, June 2010)" p. 4. */ hdmi_write(sd, 0x0d, 0x84); /* HDMI filter optimization */ @@ -1534,8 +1696,9 @@ static int adv7604_log_status(struct v4l2_subdev *sd) v4l2_info(sd, "CP locked: %s\n", no_lock_cp(sd) ? "false" : "true"); v4l2_info(sd, "CP free run: %s\n", (!!(cp_read(sd, 0xff) & 0x10) ? "on" : "off")); - v4l2_info(sd, "Prim-mode = 0x%x, video std = 0x%x\n", - io_read(sd, 0x01) & 0x0f, io_read(sd, 0x00) & 0x3f); + v4l2_info(sd, "Prim-mode = 0x%x, video std = 0x%x, v_freq = 0x%x\n", + io_read(sd, 0x01) & 0x0f, io_read(sd, 0x00) & 0x3f, + (io_read(sd, 0x01) & 0x70) >> 4); v4l2_info(sd, "-----Video Timings-----\n"); if (read_stdi(sd, &stdi)) -- cgit v0.10.2 From cf9afb1dafaf1ffeffbb4acdb5adf255e8a2aa76 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 16 Oct 2012 10:12:55 -0300 Subject: [media] adv7604: restart STDI once if format is not found The STDI block may measure wrong values, especially for lcvs and lcf. If the driver can not find any valid timing, the STDI block is restarted to measure the video timings again. The function will return an error, but the restart of STDI will generate a new STDI interrupt and the format detection process will restart. Signed-off-by: Mats Randgaard Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c index 88b7984..05f8950 100644 --- a/drivers/media/i2c/adv7604.c +++ b/drivers/media/i2c/adv7604.c @@ -76,6 +76,7 @@ struct adv7604_state { struct workqueue_struct *work_queues; struct delayed_work delayed_work_enable_hotplug; bool connector_hdmi; + bool restart_stdi_once; /* i2c clients */ struct i2c_client *i2c_avlink; @@ -1297,9 +1298,31 @@ static int adv7604_query_dv_timings(struct v4l2_subdev *sd, stdi.lcvs -= 2; v4l2_dbg(1, debug, sd, "%s: lcvs - 1 = %d\n", __func__, stdi.lcvs); if (stdi2dv_timings(sd, &stdi, timings)) { + /* + * The STDI block may measure wrong values, especially + * for lcvs and lcf. If the driver can not find any + * valid timing, the STDI block is restarted to measure + * the video timings again. The function will return an + * error, but the restart of STDI will generate a new + * STDI interrupt and the format detection process will + * restart. + */ + if (state->restart_stdi_once) { + v4l2_dbg(1, debug, sd, "%s: restart STDI\n", __func__); + /* TODO restart STDI for Sync Channel 2 */ + /* enter one-shot mode */ + cp_write_and_or(sd, 0x86, 0xf9, 0x00); + /* trigger STDI restart */ + cp_write_and_or(sd, 0x86, 0xf9, 0x04); + /* reset to continuous mode */ + cp_write_and_or(sd, 0x86, 0xf9, 0x02); + state->restart_stdi_once = false; + return -ENOLINK; + } v4l2_dbg(1, debug, sd, "%s: format not supported\n", __func__); return -ERANGE; } + state->restart_stdi_once = true; } found: @@ -2026,6 +2049,7 @@ static int adv7604_probe(struct i2c_client *client, v4l2_err(sd, "failed to create all i2c clients\n"); goto err_i2c; } + state->restart_stdi_once = true; /* work queues */ state->work_queues = create_singlethread_workqueue(client->name); -- cgit v0.10.2 From c4f4925439f13a243aecfb36c693613603c0bfbd Mon Sep 17 00:00:00 2001 From: Igor Grinberg Date: Tue, 20 Nov 2012 23:00:10 -0800 Subject: Input: ads7846 - enable pendown GPIO debounce time setting Some platforms need the pendown GPIO debounce time setting programmed. Since the pendown GPIO is handled by the driver, the debounce time should also be handled along with the pendown GPIO request. Signed-off-by: Igor Grinberg Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index f02028e..78e5d9a 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -955,7 +955,8 @@ static int ads7846_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(ads7846_pm, ads7846_suspend, ads7846_resume); -static int __devinit ads7846_setup_pendown(struct spi_device *spi, struct ads7846 *ts) +static int __devinit ads7846_setup_pendown(struct spi_device *spi, + struct ads7846 *ts) { struct ads7846_platform_data *pdata = spi->dev.platform_data; int err; @@ -981,6 +982,9 @@ static int __devinit ads7846_setup_pendown(struct spi_device *spi, struct ads784 ts->gpio_pendown = pdata->gpio_pendown; + if (pdata->gpio_pendown_debounce) + gpio_set_debounce(pdata->gpio_pendown, + pdata->gpio_pendown_debounce); } else { dev_err(&spi->dev, "no get_pendown_state nor gpio_pendown?\n"); return -EINVAL; diff --git a/include/linux/spi/ads7846.h b/include/linux/spi/ads7846.h index c64de9d..2f694f3 100644 --- a/include/linux/spi/ads7846.h +++ b/include/linux/spi/ads7846.h @@ -46,8 +46,9 @@ struct ads7846_platform_data { u16 debounce_rep; /* additional consecutive good readings * required after the first two */ int gpio_pendown; /* the GPIO used to decide the pendown - * state if get_pendown_state == NULL - */ + * state if get_pendown_state == NULL */ + int gpio_pendown_debounce; /* platform specific debounce time for + * the gpio_pendown */ int (*get_pendown_state)(void); int (*filter_init) (const struct ads7846_platform_data *pdata, void **filter_data); -- cgit v0.10.2 From 0a0d62857366d8a6531e7fed1c3ccdd9a2b5b40b Mon Sep 17 00:00:00 2001 From: Igor Grinberg Date: Tue, 20 Nov 2012 23:00:51 -0800 Subject: ARM - OMAP: ads7846: fix pendown debounce setting Commit 97ee9f01 (ARM: OMAP: fix the ads7846 init code) have enabled the pendown GPIO debounce time setting by the below sequence: gpio_request_one() gpio_set_debounce() gpio_free() It also revealed a bug in the OMAP GPIO handling code which prevented the GPIO debounce clock to be disabled and CORE transition to low power states. Commit c9c55d9 (gpio/omap: fix off-mode bug: clear debounce settings on free/reset) fixes the OMAP GPIO handling code by making sure that the GPIO debounce clock gets disabled if no GPIO is requested from current bank. While fixing the OMAP GPIO handling code (in the right way), the above commit makes the gpio_request->set_debounce->free sequence invalid as after freeing the GPIO, the debounce settings are lost. Fix the debounce settings by moving the debounce initialization to the actual GPIO requesting code - the ads7846 driver. Signed-off-by: Igor Grinberg Acked-by: Tony Lindgren Signed-off-by: Dmitry Torokhov diff --git a/arch/arm/mach-omap2/common-board-devices.c b/arch/arm/mach-omap2/common-board-devices.c index 48daac2..84551f2 100644 --- a/arch/arm/mach-omap2/common-board-devices.c +++ b/arch/arm/mach-omap2/common-board-devices.c @@ -64,30 +64,36 @@ void __init omap_ads7846_init(int bus_num, int gpio_pendown, int gpio_debounce, struct spi_board_info *spi_bi = &ads7846_spi_board_info; int err; - err = gpio_request_one(gpio_pendown, GPIOF_IN, "TSPenDown"); - if (err) { - pr_err("Couldn't obtain gpio for TSPenDown: %d\n", err); - return; - } + /* + * If a board defines get_pendown_state() function, request the pendown + * GPIO and set the GPIO debounce time. + * If a board does not define the get_pendown_state() function, then + * the ads7846 driver will setup the pendown GPIO itself. + */ + if (board_pdata && board_pdata->get_pendown_state) { + err = gpio_request_one(gpio_pendown, GPIOF_IN, "TSPenDown"); + if (err) { + pr_err("Couldn't obtain gpio for TSPenDown: %d\n", err); + return; + } - if (gpio_debounce) - gpio_set_debounce(gpio_pendown, gpio_debounce); + if (gpio_debounce) + gpio_set_debounce(gpio_pendown, gpio_debounce); + + gpio_export(gpio_pendown, 0); + } spi_bi->bus_num = bus_num; spi_bi->irq = gpio_to_irq(gpio_pendown); + ads7846_config.gpio_pendown = gpio_pendown; + if (board_pdata) { board_pdata->gpio_pendown = gpio_pendown; + board_pdata->gpio_pendown_debounce = gpio_debounce; spi_bi->platform_data = board_pdata; - if (board_pdata->get_pendown_state) - gpio_export(gpio_pendown, 0); - } else { - ads7846_config.gpio_pendown = gpio_pendown; } - if (!board_pdata || (board_pdata && !board_pdata->get_pendown_state)) - gpio_free(gpio_pendown); - spi_register_board_info(&ads7846_spi_board_info, 1); } #else -- cgit v0.10.2 From ef5b7c69b7a1b8b8744a6168b6ff02900f81b6ca Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 22 Nov 2012 09:13:36 +1100 Subject: md/raid5: move resolving of reconstruct_state earlier in stripe_handle. The chunk of code in stripe_handle which responds to a *_result value in reconstruct_state is really the completion of some processing that happened outside of handle_stripe (possibly asynchronously) and so should be one of the first things done in handle_stripe(). After the next patch it will be important that it happens before handle_stripe_clean_event(), as that will clear some dev->flags bit that this code tests. Signed-off-by: NeilBrown diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index baea94f..0fb9885 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3490,40 +3490,6 @@ static void handle_stripe(struct stripe_head *sh) handle_failed_sync(conf, sh, &s); } - /* - * might be able to return some write requests if the parity blocks - * are safe, or on a failed drive - */ - pdev = &sh->dev[sh->pd_idx]; - s.p_failed = (s.failed >= 1 && s.failed_num[0] == sh->pd_idx) - || (s.failed >= 2 && s.failed_num[1] == sh->pd_idx); - qdev = &sh->dev[sh->qd_idx]; - s.q_failed = (s.failed >= 1 && s.failed_num[0] == sh->qd_idx) - || (s.failed >= 2 && s.failed_num[1] == sh->qd_idx) - || conf->level < 6; - - if (s.written && - (s.p_failed || ((test_bit(R5_Insync, &pdev->flags) - && !test_bit(R5_LOCKED, &pdev->flags) - && (test_bit(R5_UPTODATE, &pdev->flags) || - test_bit(R5_Discard, &pdev->flags))))) && - (s.q_failed || ((test_bit(R5_Insync, &qdev->flags) - && !test_bit(R5_LOCKED, &qdev->flags) - && (test_bit(R5_UPTODATE, &qdev->flags) || - test_bit(R5_Discard, &qdev->flags)))))) - handle_stripe_clean_event(conf, sh, disks, &s.return_bi); - - /* Now we might consider reading some blocks, either to check/generate - * parity, or to satisfy requests - * or to load a block that is being partially written. - */ - if (s.to_read || s.non_overwrite - || (conf->level == 6 && s.to_write && s.failed) - || (s.syncing && (s.uptodate + s.compute < disks)) - || s.replacing - || s.expanding) - handle_stripe_fill(sh, &s, disks); - /* Now we check to see if any write operations have recently * completed */ @@ -3561,6 +3527,40 @@ static void handle_stripe(struct stripe_head *sh) s.dec_preread_active = 1; } + /* + * might be able to return some write requests if the parity blocks + * are safe, or on a failed drive + */ + pdev = &sh->dev[sh->pd_idx]; + s.p_failed = (s.failed >= 1 && s.failed_num[0] == sh->pd_idx) + || (s.failed >= 2 && s.failed_num[1] == sh->pd_idx); + qdev = &sh->dev[sh->qd_idx]; + s.q_failed = (s.failed >= 1 && s.failed_num[0] == sh->qd_idx) + || (s.failed >= 2 && s.failed_num[1] == sh->qd_idx) + || conf->level < 6; + + if (s.written && + (s.p_failed || ((test_bit(R5_Insync, &pdev->flags) + && !test_bit(R5_LOCKED, &pdev->flags) + && (test_bit(R5_UPTODATE, &pdev->flags) || + test_bit(R5_Discard, &pdev->flags))))) && + (s.q_failed || ((test_bit(R5_Insync, &qdev->flags) + && !test_bit(R5_LOCKED, &qdev->flags) + && (test_bit(R5_UPTODATE, &qdev->flags) || + test_bit(R5_Discard, &qdev->flags)))))) + handle_stripe_clean_event(conf, sh, disks, &s.return_bi); + + /* Now we might consider reading some blocks, either to check/generate + * parity, or to satisfy requests + * or to load a block that is being partially written. + */ + if (s.to_read || s.non_overwrite + || (conf->level == 6 && s.to_write && s.failed) + || (s.syncing && (s.uptodate + s.compute < disks)) + || s.replacing + || s.expanding) + handle_stripe_fill(sh, &s, disks); + /* Now to consider new write requests and what else, if anything * should be read. We do not handle new writes when: * 1/ A 'write' operation (copy+xor) is already in flight. -- cgit v0.10.2 From ca64cae96037de16e4af92678814f5d4bf0c1c65 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 21 Nov 2012 16:33:40 +1100 Subject: md/raid5: Make sure we clear R5_Discard when discard is finished. commit 9e44476851e91c86c98eb92b9bc27fb801f89072 MD: raid5 avoid unnecessary zero page for trim change raid5 to clear R5_Discard when the complete request is handled rather than when submitting the per-device discard request. However it did not clear R5_Discard for the parity device. This means that if the stripe_head was reused before it expired from the cache, the setting would be wrong and a hang would result. Also if the R5_Uptodate bit happens to be set, R5_Discard again won't be cleared. But R5_Uptodate really should be clear at this point. So make sure R5_Discard is cleared in all cases, and clear R5_Uptodate when a 'discard' completes. Signed-off-by: NeilBrown diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 0fb9885..a450268 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -2774,10 +2774,12 @@ static void handle_stripe_clean_event(struct r5conf *conf, dev = &sh->dev[i]; if (!test_bit(R5_LOCKED, &dev->flags) && (test_bit(R5_UPTODATE, &dev->flags) || - test_and_clear_bit(R5_Discard, &dev->flags))) { + test_bit(R5_Discard, &dev->flags))) { /* We can return any write requests */ struct bio *wbi, *wbi2; pr_debug("Return write for disc %d\n", i); + if (test_and_clear_bit(R5_Discard, &dev->flags)) + clear_bit(R5_UPTODATE, &dev->flags); wbi = dev->written; dev->written = NULL; while (wbi && wbi->bi_sector < @@ -2795,7 +2797,8 @@ static void handle_stripe_clean_event(struct r5conf *conf, !test_bit(STRIPE_DEGRADED, &sh->state), 0); } - } + } else if (test_bit(R5_Discard, &sh->dev[i].flags)) + clear_bit(R5_Discard, &sh->dev[i].flags); if (test_and_clear_bit(STRIPE_FULL_WRITE, &sh->state)) if (atomic_dec_and_test(&conf->pending_full_writes)) -- cgit v0.10.2 From ef6c5be658f6a70c1256fbd18e18ee0dc24c3386 Mon Sep 17 00:00:00 2001 From: Dave Hansen Date: Wed, 21 Nov 2012 14:21:51 -0500 Subject: fix incorrect NR_FREE_PAGES accounting (appears like memory leak) There have been some 3.7-rc reports of vm issues, including some kswapd bugs and, more importantly, some memory "leaks": http://www.spinics.net/lists/linux-mm/msg46187.html https://bugzilla.kernel.org/show_bug.cgi?id=50181 Commit 1fb3f8ca0e92 ("mm: compaction: capture a suitable high-order page immediately when it is made available") took split_free_page() and reused it for the compaction code. It does something curious with capture_free_page() (previously known as split_free_page()): int capture_free_page(struct page *page, int alloc_order, ... __mod_zone_page_state(zone, NR_FREE_PAGES, -(1UL << order)); - /* Split into individual pages */ - set_page_refcounted(page); - split_page(page, order); + if (alloc_order != order) + expand(zone, page, alloc_order, order, + &zone->free_area[order], migratetype); Note that expand() puts the pages _back_ in the allocator, but it does not bump NR_FREE_PAGES. We "return" 'alloc_order' worth of pages, but we accounted for removing 'order' in the __mod_zone_page_state() call. For the old split_page()-style use (order==alloc_order) the bug will not trigger. But, when called from the compaction code where we occasionally get a larger page out of the buddy allocator than we need, we will run in to this. This patch simply changes the NR_FREE_PAGES manipulation to the correct 'alloc_order' instead of 'order'. I've been able to repeatedly trigger this in my testing environment. The amount "leaked" very closely tracks the imbalance I see in buddy pages vs. NR_FREE_PAGES. I have confirmed that this patch fixes the imbalance Signed-off-by: Dave Hansen Acked-by: Mel Gorman Signed-off-by: Linus Torvalds diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 7bb35ac..bcb72c6 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1405,7 +1405,7 @@ int capture_free_page(struct page *page, int alloc_order, int migratetype) mt = get_pageblock_migratetype(page); if (unlikely(mt != MIGRATE_ISOLATE)) - __mod_zone_freepage_state(zone, -(1UL << order), mt); + __mod_zone_freepage_state(zone, -(1UL << alloc_order), mt); if (alloc_order != order) expand(zone, page, alloc_order, order, -- cgit v0.10.2 From 4fe198e6b136c516df493ec325ab8f70d470f477 Mon Sep 17 00:00:00 2001 From: Jozsef Kadlecsik Date: Mon, 19 Nov 2012 06:42:21 +0000 Subject: netfilter: ipset: Fix range bug in hash:ip,port,net Due to the missing ininitalization at adding/deleting entries, when a plain_ip,port,net element was the object, multiple elements were added/deleted instead. The bug came from the missing dangling default initialization. The error-prone default initialization is corrected in all hash:* types. Signed-off-by: Jozsef Kadlecsik Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/ipset/ip_set_hash_ip.c b/net/netfilter/ipset/ip_set_hash_ip.c index ec3dba5..5c0b785 100644 --- a/net/netfilter/ipset/ip_set_hash_ip.c +++ b/net/netfilter/ipset/ip_set_hash_ip.c @@ -173,6 +173,7 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[], return adtfn(set, &nip, timeout, flags); } + ip_to = ip; if (tb[IPSET_ATTR_IP_TO]) { ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to); if (ret) @@ -185,8 +186,7 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[], if (!cidr || cidr > 32) return -IPSET_ERR_INVALID_CIDR; ip_set_mask_from_to(ip, ip_to, cidr); - } else - ip_to = ip; + } hosts = h->netmask == 32 ? 1 : 2 << (32 - h->netmask - 1); diff --git a/net/netfilter/ipset/ip_set_hash_ipport.c b/net/netfilter/ipset/ip_set_hash_ipport.c index 0171f75..6283351 100644 --- a/net/netfilter/ipset/ip_set_hash_ipport.c +++ b/net/netfilter/ipset/ip_set_hash_ipport.c @@ -162,7 +162,7 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[], const struct ip_set_hash *h = set->data; ipset_adtfn adtfn = set->variant->adt[adt]; struct hash_ipport4_elem data = { }; - u32 ip, ip_to = 0, p = 0, port, port_to; + u32 ip, ip_to, p = 0, port, port_to; u32 timeout = h->timeout; bool with_ports = false; int ret; @@ -210,7 +210,7 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[], return ip_set_eexist(ret, flags) ? 0 : ret; } - ip = ntohl(data.ip); + ip_to = ip = ntohl(data.ip); if (tb[IPSET_ATTR_IP_TO]) { ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to); if (ret) @@ -223,8 +223,7 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[], if (!cidr || cidr > 32) return -IPSET_ERR_INVALID_CIDR; ip_set_mask_from_to(ip, ip_to, cidr); - } else - ip_to = ip; + } port_to = port = ntohs(data.port); if (with_ports && tb[IPSET_ATTR_PORT_TO]) { diff --git a/net/netfilter/ipset/ip_set_hash_ipportip.c b/net/netfilter/ipset/ip_set_hash_ipportip.c index 6344ef5..6a21271 100644 --- a/net/netfilter/ipset/ip_set_hash_ipportip.c +++ b/net/netfilter/ipset/ip_set_hash_ipportip.c @@ -166,7 +166,7 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[], const struct ip_set_hash *h = set->data; ipset_adtfn adtfn = set->variant->adt[adt]; struct hash_ipportip4_elem data = { }; - u32 ip, ip_to = 0, p = 0, port, port_to; + u32 ip, ip_to, p = 0, port, port_to; u32 timeout = h->timeout; bool with_ports = false; int ret; @@ -218,7 +218,7 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[], return ip_set_eexist(ret, flags) ? 0 : ret; } - ip = ntohl(data.ip); + ip_to = ip = ntohl(data.ip); if (tb[IPSET_ATTR_IP_TO]) { ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to); if (ret) @@ -231,8 +231,7 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[], if (!cidr || cidr > 32) return -IPSET_ERR_INVALID_CIDR; ip_set_mask_from_to(ip, ip_to, cidr); - } else - ip_to = ip; + } port_to = port = ntohs(data.port); if (with_ports && tb[IPSET_ATTR_PORT_TO]) { diff --git a/net/netfilter/ipset/ip_set_hash_ipportnet.c b/net/netfilter/ipset/ip_set_hash_ipportnet.c index cb71f9a..2d5cd4e 100644 --- a/net/netfilter/ipset/ip_set_hash_ipportnet.c +++ b/net/netfilter/ipset/ip_set_hash_ipportnet.c @@ -215,8 +215,8 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[], const struct ip_set_hash *h = set->data; ipset_adtfn adtfn = set->variant->adt[adt]; struct hash_ipportnet4_elem data = { .cidr = HOST_MASK - 1 }; - u32 ip, ip_to = 0, p = 0, port, port_to; - u32 ip2_from = 0, ip2_to, ip2_last, ip2; + u32 ip, ip_to, p = 0, port, port_to; + u32 ip2_from, ip2_to, ip2_last, ip2; u32 timeout = h->timeout; bool with_ports = false; u8 cidr; @@ -286,6 +286,7 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[], return ip_set_eexist(ret, flags) ? 0 : ret; } + ip_to = ip; if (tb[IPSET_ATTR_IP_TO]) { ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to); if (ret) @@ -306,6 +307,8 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[], if (port > port_to) swap(port, port_to); } + + ip2_to = ip2_from; if (tb[IPSET_ATTR_IP2_TO]) { ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to); if (ret) -- cgit v0.10.2 From e93b5f9f320db431ec8623a4c667811007e07fd7 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Wed, 21 Nov 2012 01:37:38 +0000 Subject: netfilter: cttimeout: fix buffer overflow Chen Gang reports: the length of nla_data(cda[CTA_TIMEOUT_NAME]) is not limited in server side. And indeed, its used to strcpy to a fixed-sized buffer. Fortunately, nfnetlink users need CAP_NET_ADMIN. Reported-by: Chen Gang Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c index 8847b4d..701c88a 100644 --- a/net/netfilter/nfnetlink_cttimeout.c +++ b/net/netfilter/nfnetlink_cttimeout.c @@ -41,7 +41,8 @@ MODULE_DESCRIPTION("cttimeout: Extended Netfilter Connection Tracking timeout tu static LIST_HEAD(cttimeout_list); static const struct nla_policy cttimeout_nla_policy[CTA_TIMEOUT_MAX+1] = { - [CTA_TIMEOUT_NAME] = { .type = NLA_NUL_STRING }, + [CTA_TIMEOUT_NAME] = { .type = NLA_NUL_STRING, + .len = CTNL_TIMEOUT_NAME_MAX - 1}, [CTA_TIMEOUT_L3PROTO] = { .type = NLA_U16 }, [CTA_TIMEOUT_L4PROTO] = { .type = NLA_U8 }, [CTA_TIMEOUT_DATA] = { .type = NLA_NESTED }, -- cgit v0.10.2 From 0181bd5dea2ed0696f84591a92da0b6a1f1a2e62 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 21 Nov 2012 18:37:38 -0500 Subject: drm/radeon: add new SI pci id Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h index af1cbaf..c5c35e6 100644 --- a/include/drm/drm_pciids.h +++ b/include/drm/drm_pciids.h @@ -210,6 +210,7 @@ {0x1002, 0x6798, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6799, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x679A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x679B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x679E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x679F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ -- cgit v0.10.2 From b1a925f44a3a21c538144e30b08f966cad7adb63 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jean-Fran=C3=A7ois=20Moine?= Date: Tue, 20 Nov 2012 17:35:41 +0100 Subject: tty vt: Fix a regression in command line edition MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The commit 81732c3b2fede049a692e58a7ceabb6d18ffb18c ("Fix line garbage in virtual console on command line edition") made a regression with some machines: some characters were not erased after line edition. This patch adjusts the number of moved characters and the size of the region to be updated. Signed-off-by: Jean-François Moine Tested-by: Krzysztof Mazur Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index f87d7e8..4e0d0c3 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -539,25 +539,25 @@ static void insert_char(struct vc_data *vc, unsigned int nr) { unsigned short *p = (unsigned short *) vc->vc_pos; - scr_memmovew(p + nr, p, vc->vc_cols - vc->vc_x); + scr_memmovew(p + nr, p, (vc->vc_cols - vc->vc_x) * 2); scr_memsetw(p, vc->vc_video_erase_char, nr * 2); vc->vc_need_wrap = 0; if (DO_UPDATE(vc)) do_update_region(vc, (unsigned long) p, - (vc->vc_cols - vc->vc_x) / 2 + 1); + vc->vc_cols - vc->vc_x); } static void delete_char(struct vc_data *vc, unsigned int nr) { unsigned short *p = (unsigned short *) vc->vc_pos; - scr_memcpyw(p, p + nr, vc->vc_cols - vc->vc_x - nr); + scr_memcpyw(p, p + nr, (vc->vc_cols - vc->vc_x - nr) * 2); scr_memsetw(p + vc->vc_cols - vc->vc_x - nr, vc->vc_video_erase_char, nr * 2); vc->vc_need_wrap = 0; if (DO_UPDATE(vc)) do_update_region(vc, (unsigned long) p, - (vc->vc_cols - vc->vc_x) / 2); + vc->vc_cols - vc->vc_x); } static int softcursor_original; -- cgit v0.10.2 From ace5a9b8dbc66ada0aa8c5f67b93527590822c7c Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Wed, 21 Nov 2012 13:21:12 +0100 Subject: drm/nouveau: use the correct fence implementation for nv50 Only compile time tested, noticed nv50_fence_create was never used, so fix this. This will probably fix vblank on nv50 cards. Hopefully this is still in time for 3.7 final release. Signed-off-by: Maarten Lankhorst Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 0910125..8503b2e 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -129,7 +129,8 @@ nouveau_accel_init(struct nouveau_drm *drm) /* initialise synchronisation routines */ if (device->card_type < NV_10) ret = nv04_fence_create(drm); - else if (device->chipset < 0x84) ret = nv10_fence_create(drm); + else if (device->card_type < NV_50) ret = nv10_fence_create(drm); + else if (device->chipset < 0x84) ret = nv50_fence_create(drm); else if (device->card_type < NV_C0) ret = nv84_fence_create(drm); else ret = nvc0_fence_create(drm); if (ret) { -- cgit v0.10.2 From 3043c5c8bf3511d76bbdcf27f56449549d4bb70c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= Date: Sat, 1 Sep 2012 18:28:14 +0200 Subject: IXP4xx: Fix Goramo MultiLink platform compilation. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Krzysztof Hałasa diff --git a/arch/arm/mach-ixp4xx/goramo_mlr.c b/arch/arm/mach-ixp4xx/goramo_mlr.c index b800a03..f417632 100644 --- a/arch/arm/mach-ixp4xx/goramo_mlr.c +++ b/arch/arm/mach-ixp4xx/goramo_mlr.c @@ -15,6 +15,7 @@ #include #include #include +#include #define SLOT_ETHA 0x0B /* IDSEL = AD21 */ #define SLOT_ETHB 0x0C /* IDSEL = AD20 */ -- cgit v0.10.2 From 87ba5c6a313b4da5639a18d7796e51483ededd17 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= Date: Sun, 2 Sep 2012 19:23:27 +0200 Subject: IXP4xx: Fix off-by-one bug in Goramo MultiLink platform. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Krzysztof Hałasa diff --git a/arch/arm/mach-ixp4xx/goramo_mlr.c b/arch/arm/mach-ixp4xx/goramo_mlr.c index f417632..53b8348 100644 --- a/arch/arm/mach-ixp4xx/goramo_mlr.c +++ b/arch/arm/mach-ixp4xx/goramo_mlr.c @@ -330,7 +330,7 @@ static struct platform_device device_hss_tab[] = { }; -static struct platform_device *device_tab[6] __initdata = { +static struct platform_device *device_tab[7] __initdata = { &device_flash, /* index 0 */ }; -- cgit v0.10.2 From 553da857b1b917e27817b923ea2c786313620845 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= Date: Tue, 23 Mar 2010 20:22:13 +0100 Subject: IXP4xx: HW pseudo-random generator is available on IXP45x/46x only. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Krzysztof Hałasa diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index fbd9b2b..c58ea9b 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -127,12 +127,12 @@ config HW_RANDOM_VIA If unsure, say Y. config HW_RANDOM_IXP4XX - tristate "Intel IXP4xx NPU HW Random Number Generator support" + tristate "Intel IXP4xx NPU HW Pseudo-Random Number Generator support" depends on HW_RANDOM && ARCH_IXP4XX default HW_RANDOM ---help--- - This driver provides kernel-side support for the Random - Number Generator hardware found on the Intel IXP4xx NPU. + This driver provides kernel-side support for the Pseudo-Random + Number Generator hardware found on the Intel IXP45x/46x NPU. To compile this driver as a module, choose M here: the module will be called ixp4xx-rng. diff --git a/drivers/char/hw_random/ixp4xx-rng.c b/drivers/char/hw_random/ixp4xx-rng.c index 263567f..beec162 100644 --- a/drivers/char/hw_random/ixp4xx-rng.c +++ b/drivers/char/hw_random/ixp4xx-rng.c @@ -45,6 +45,9 @@ static int __init ixp4xx_rng_init(void) void __iomem * rng_base; int err; + if (!cpu_is_ixp46x()) /* includes IXP455 */ + return -ENOSYS; + rng_base = ioremap(0x70002100, 4); if (!rng_base) return -ENOMEM; @@ -68,5 +71,5 @@ module_init(ixp4xx_rng_init); module_exit(ixp4xx_rng_exit); MODULE_AUTHOR("Deepak Saxena "); -MODULE_DESCRIPTION("H/W Random Number Generator (RNG) driver for IXP4xx"); +MODULE_DESCRIPTION("H/W Pseudo-Random Number Generator (RNG) driver for IXP45x/46x"); MODULE_LICENSE("GPL"); -- cgit v0.10.2 From 9665c52b102504399a9f041b85ff9f47c5d56bb3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= Date: Thu, 25 Mar 2010 23:56:05 +0100 Subject: IXP4xx: ixp4xx_crypto driver requires Queue Manager and NPE drivers. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Krzysztof Hałasa diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index 308c7fb..f6644f5 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -224,7 +224,7 @@ config CRYPTO_DEV_TALITOS config CRYPTO_DEV_IXP4XX tristate "Driver for IXP4xx crypto hardware acceleration" - depends on ARCH_IXP4XX + depends on ARCH_IXP4XX && IXP4XX_QMGR && IXP4XX_NPE select CRYPTO_DES select CRYPTO_ALGAPI select CRYPTO_AUTHENC -- cgit v0.10.2 From f203bc64e8b7d19ca52df89b142005c5552fef3f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= Date: Sun, 17 Apr 2011 21:06:06 +0200 Subject: IXP4xx: Remove time limit for PCI TRDY to enable use of slow devices. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Krzysztof Hałasa diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c index 1694f01..6d6bde3 100644 --- a/arch/arm/mach-ixp4xx/common-pci.c +++ b/arch/arm/mach-ixp4xx/common-pci.c @@ -410,6 +410,7 @@ void __init ixp4xx_pci_preinit(void) * Enable the IO window to be way up high, at 0xfffffc00 */ local_write_config(PCI_BASE_ADDRESS_5, 4, 0xfffffc01); + local_write_config(0x40, 4, 0x000080FF); /* No TRDY time limit */ } else { printk("PCI: IXP4xx is target - No bus scan performed\n"); } -- cgit v0.10.2 From 4d18dea51036c673795eb9510fd8d70dcf214414 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= Date: Tue, 1 May 2012 20:47:12 +0200 Subject: WAN: Remove redundant HDLC info printed by IXP4xx HSS driver. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Krzysztof Hałasa diff --git a/drivers/net/wan/ixp4xx_hss.c b/drivers/net/wan/ixp4xx_hss.c index 3f575af..0fe36d7 100644 --- a/drivers/net/wan/ixp4xx_hss.c +++ b/drivers/net/wan/ixp4xx_hss.c @@ -1363,7 +1363,7 @@ static int __devinit hss_init_one(struct platform_device *pdev) platform_set_drvdata(pdev, port); - netdev_info(dev, "HSS-%i\n", port->id); + netdev_info(dev, "initialized\n"); return 0; err_free_netdev: -- cgit v0.10.2 From 9792eb1d7296ad4e19c3219dabf65efd01562a73 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= Date: Tue, 28 Dec 2010 13:08:18 +0100 Subject: IXP4xx crypto: MOD_AES{128,192,256} already include key size. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Krzysztof Hałasa diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c index 8f3f74c..21180d6 100644 --- a/drivers/crypto/ixp4xx_crypto.c +++ b/drivers/crypto/ixp4xx_crypto.c @@ -750,12 +750,12 @@ static int setup_cipher(struct crypto_tfm *tfm, int encrypt, } if (cipher_cfg & MOD_AES) { switch (key_len) { - case 16: keylen_cfg = MOD_AES128 | KEYLEN_128; break; - case 24: keylen_cfg = MOD_AES192 | KEYLEN_192; break; - case 32: keylen_cfg = MOD_AES256 | KEYLEN_256; break; - default: - *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; - return -EINVAL; + case 16: keylen_cfg = MOD_AES128; break; + case 24: keylen_cfg = MOD_AES192; break; + case 32: keylen_cfg = MOD_AES256; break; + default: + *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; + return -EINVAL; } cipher_cfg |= keylen_cfg; } else if (cipher_cfg & MOD_3DES) { -- cgit v0.10.2 From 05cd3db0df6f6ac3083a9e9671dd1662053604df Mon Sep 17 00:00:00 2001 From: Tim Gardner Date: Wed, 25 Jul 2012 12:33:06 -0600 Subject: ixp4xx: Declare MODULE_FIRMWARE usage MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Krzysztof Halasa Cc: Imre Kaloz Cc: Russell King Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Tim Gardner Signed-off-by: Krzysztof Hałasa diff --git a/arch/arm/mach-ixp4xx/ixp4xx_npe.c b/arch/arm/mach-ixp4xx/ixp4xx_npe.c index a17ed79..d4eb09a 100644 --- a/arch/arm/mach-ixp4xx/ixp4xx_npe.c +++ b/arch/arm/mach-ixp4xx/ixp4xx_npe.c @@ -116,7 +116,11 @@ /* NPE mailbox_status value for reset */ #define RESET_MBOX_STAT 0x0000F0F0 -const char *npe_names[] = { "NPE-A", "NPE-B", "NPE-C" }; +#define NPE_A_FIRMWARE "NPE-A" +#define NPE_B_FIRMWARE "NPE-B" +#define NPE_C_FIRMWARE "NPE-C" + +const char *npe_names[] = { NPE_A_FIRMWARE, NPE_B_FIRMWARE, NPE_C_FIRMWARE }; #define print_npe(pri, npe, fmt, ...) \ printk(pri "%s: " fmt, npe_name(npe), ## __VA_ARGS__) @@ -724,6 +728,9 @@ module_exit(npe_cleanup_module); MODULE_AUTHOR("Krzysztof Halasa"); MODULE_LICENSE("GPL v2"); +MODULE_FIRMWARE(NPE_A_FIRMWARE); +MODULE_FIRMWARE(NPE_B_FIRMWARE); +MODULE_FIRMWARE(NPE_C_FIRMWARE); EXPORT_SYMBOL(npe_names); EXPORT_SYMBOL(npe_running); -- cgit v0.10.2 From f0cdb153292635203b3a0921c901dacf85d4ef1b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= Date: Fri, 26 Mar 2010 16:38:52 +0100 Subject: IXP4xx: Always ioremap() Queue Manager MMIO region at boot. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It doesn't make much sense to map QMgr dynamically - we almost always need it and the static mapping will be needed for little-endian data-coherent operation (to make QMgr region value-coherent). Signed-off-by: Krzysztof Hałasa diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c index fdf91a1..acc0584 100644 --- a/arch/arm/mach-ixp4xx/common.c +++ b/arch/arm/mach-ixp4xx/common.c @@ -67,6 +67,11 @@ static struct map_desc ixp4xx_io_desc[] __initdata = { .pfn = __phys_to_pfn(IXP4XX_PCI_CFG_BASE_PHYS), .length = IXP4XX_PCI_CFG_REGION_SIZE, .type = MT_DEVICE + }, { /* Queue Manager */ + .virtual = (unsigned long)IXP4XX_QMGR_BASE_VIRT, + .pfn = __phys_to_pfn(IXP4XX_QMGR_BASE_PHYS), + .length = IXP4XX_QMGR_REGION_SIZE, + .type = MT_DEVICE }, #ifdef CONFIG_DEBUG_LL { /* Debug UART mapping */ diff --git a/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h b/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h index eb68b61..a24a8fe 100644 --- a/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h +++ b/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h @@ -30,19 +30,20 @@ * * 0x50000000 0x10000000 ioremap'd EXP BUS * - * 0x6000000 0x00004000 ioremap'd QMgr + * 0x60000000 0x00004000 0xffbe7000 QMgr * - * 0xC0000000 0x00001000 0xffbff000 PCI CFG + * 0xC8000000 0x00013000 0xffbeb000 On-Chip Peripherals * * 0xC4000000 0x00001000 0xffbfe000 EXP CFG * - * 0xC8000000 0x00013000 0xffbeb000 On-Chip Peripherals + * 0xC0000000 0x00001000 0xffbff000 PCI CFG */ /* * Queue Manager */ #define IXP4XX_QMGR_BASE_PHYS (0x60000000) +#define IXP4XX_QMGR_BASE_VIRT IOMEM(0xFFBE7000) #define IXP4XX_QMGR_REGION_SIZE (0x00004000) /* diff --git a/arch/arm/mach-ixp4xx/include/mach/qmgr.h b/arch/arm/mach-ixp4xx/include/mach/qmgr.h index 9e7cad2..0a88d3b 100644 --- a/arch/arm/mach-ixp4xx/include/mach/qmgr.h +++ b/arch/arm/mach-ixp4xx/include/mach/qmgr.h @@ -86,7 +86,7 @@ void qmgr_release_queue(unsigned int queue); static inline void qmgr_put_entry(unsigned int queue, u32 val) { - extern struct qmgr_regs __iomem *qmgr_regs; + const struct qmgr_regs __iomem *qmgr_regs = (void __iomem *)IXP4XX_QMGR_BASE_VIRT; #if DEBUG_QMGR BUG_ON(!qmgr_queue_descs[queue]); /* not yet requested */ @@ -99,7 +99,7 @@ static inline void qmgr_put_entry(unsigned int queue, u32 val) static inline u32 qmgr_get_entry(unsigned int queue) { u32 val; - extern struct qmgr_regs __iomem *qmgr_regs; + const struct qmgr_regs __iomem *qmgr_regs = (void __iomem *)IXP4XX_QMGR_BASE_VIRT; val = __raw_readl(&qmgr_regs->acc[queue][0]); #if DEBUG_QMGR BUG_ON(!qmgr_queue_descs[queue]); /* not yet requested */ @@ -112,14 +112,14 @@ static inline u32 qmgr_get_entry(unsigned int queue) static inline int __qmgr_get_stat1(unsigned int queue) { - extern struct qmgr_regs __iomem *qmgr_regs; + const struct qmgr_regs __iomem *qmgr_regs = (void __iomem *)IXP4XX_QMGR_BASE_VIRT; return (__raw_readl(&qmgr_regs->stat1[queue >> 3]) >> ((queue & 7) << 2)) & 0xF; } static inline int __qmgr_get_stat2(unsigned int queue) { - extern struct qmgr_regs __iomem *qmgr_regs; + const struct qmgr_regs __iomem *qmgr_regs = (void __iomem *)IXP4XX_QMGR_BASE_VIRT; BUG_ON(queue >= HALF_QUEUES); return (__raw_readl(&qmgr_regs->stat2[queue >> 4]) >> ((queue & 0xF) << 1)) & 0x3; @@ -145,7 +145,7 @@ static inline int qmgr_stat_empty(unsigned int queue) */ static inline int qmgr_stat_below_low_watermark(unsigned int queue) { - extern struct qmgr_regs __iomem *qmgr_regs; + const struct qmgr_regs __iomem *qmgr_regs = (void __iomem *)IXP4XX_QMGR_BASE_VIRT; if (queue >= HALF_QUEUES) return (__raw_readl(&qmgr_regs->statne_h) >> (queue - HALF_QUEUES)) & 0x01; @@ -172,7 +172,7 @@ static inline int qmgr_stat_above_high_watermark(unsigned int queue) */ static inline int qmgr_stat_full(unsigned int queue) { - extern struct qmgr_regs __iomem *qmgr_regs; + const struct qmgr_regs __iomem *qmgr_regs = (void __iomem *)IXP4XX_QMGR_BASE_VIRT; if (queue >= HALF_QUEUES) return (__raw_readl(&qmgr_regs->statf_h) >> (queue - HALF_QUEUES)) & 0x01; diff --git a/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c b/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c index 852f7c9..7c0584e 100644 --- a/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c +++ b/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c @@ -14,7 +14,7 @@ #include #include -struct qmgr_regs __iomem *qmgr_regs; +static const struct qmgr_regs __iomem *qmgr_regs = (void __iomem *)IXP4XX_QMGR_BASE_VIRT; static struct resource *mem_res; static spinlock_t qmgr_lock; static u32 used_sram_bitmap[4]; /* 128 16-dword pages */ @@ -32,7 +32,7 @@ void qmgr_set_irq(unsigned int queue, int src, spin_lock_irqsave(&qmgr_lock, flags); if (queue < HALF_QUEUES) { - u32 __iomem *reg; + const u32 __iomem *reg; int bit; BUG_ON(src > QUEUE_IRQ_SRC_NOT_FULL); reg = &qmgr_regs->irqsrc[queue >> 3]; /* 8 queues per u32 */ @@ -293,12 +293,6 @@ static int qmgr_init(void) if (mem_res == NULL) return -EBUSY; - qmgr_regs = ioremap(IXP4XX_QMGR_BASE_PHYS, IXP4XX_QMGR_REGION_SIZE); - if (qmgr_regs == NULL) { - err = -ENOMEM; - goto error_map; - } - /* reset qmgr registers */ for (i = 0; i < 4; i++) { __raw_writel(0x33333333, &qmgr_regs->stat1[i]); @@ -347,8 +341,6 @@ static int qmgr_init(void) error_irq2: free_irq(IRQ_IXP4XX_QM1, NULL); error_irq: - iounmap(qmgr_regs); -error_map: release_mem_region(IXP4XX_QMGR_BASE_PHYS, IXP4XX_QMGR_REGION_SIZE); return err; } @@ -359,7 +351,6 @@ static void qmgr_remove(void) free_irq(IRQ_IXP4XX_QM2, NULL); synchronize_irq(IRQ_IXP4XX_QM1); synchronize_irq(IRQ_IXP4XX_QM2); - iounmap(qmgr_regs); release_mem_region(IXP4XX_QMGR_BASE_PHYS, IXP4XX_QMGR_REGION_SIZE); } @@ -369,7 +360,6 @@ module_exit(qmgr_remove); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Krzysztof Halasa"); -EXPORT_SYMBOL(qmgr_regs); EXPORT_SYMBOL(qmgr_set_irq); EXPORT_SYMBOL(qmgr_enable_irq); EXPORT_SYMBOL(qmgr_disable_irq); -- cgit v0.10.2 From b7b23db72f9a79e6ed0bcfb75d73b29f8e03fe62 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= Date: Sun, 2 Sep 2012 00:50:39 +0200 Subject: IXP4xx: map CPU config registers within VMALLOC region. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Krzysztof Hałasa diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c index acc0584..8c0c0e2 100644 --- a/arch/arm/mach-ixp4xx/common.c +++ b/arch/arm/mach-ixp4xx/common.c @@ -73,14 +73,6 @@ static struct map_desc ixp4xx_io_desc[] __initdata = { .length = IXP4XX_QMGR_REGION_SIZE, .type = MT_DEVICE }, -#ifdef CONFIG_DEBUG_LL - { /* Debug UART mapping */ - .virtual = (unsigned long)IXP4XX_DEBUG_UART_BASE_VIRT, - .pfn = __phys_to_pfn(IXP4XX_DEBUG_UART_BASE_PHYS), - .length = IXP4XX_DEBUG_UART_REGION_SIZE, - .type = MT_DEVICE - } -#endif }; void __init ixp4xx_map_io(void) diff --git a/arch/arm/mach-ixp4xx/include/mach/debug-macro.S b/arch/arm/mach-ixp4xx/include/mach/debug-macro.S index 8c9f8d5..ff686cb 100644 --- a/arch/arm/mach-ixp4xx/include/mach/debug-macro.S +++ b/arch/arm/mach-ixp4xx/include/mach/debug-macro.S @@ -17,8 +17,8 @@ #else mov \rp, #0 #endif - orr \rv, \rp, #0xff000000 @ virtual - orr \rv, \rv, #0x00b00000 + orr \rv, \rp, #0xfe000000 @ virtual + orr \rv, \rv, #0x00f00000 orr \rp, \rp, #0xc8000000 @ physical .endm diff --git a/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h b/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h index a24a8fe..c5bae9c 100644 --- a/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h +++ b/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h @@ -30,52 +30,43 @@ * * 0x50000000 0x10000000 ioremap'd EXP BUS * - * 0x60000000 0x00004000 0xffbe7000 QMgr + * 0xC8000000 0x00013000 0xFEF00000 On-Chip Peripherals * - * 0xC8000000 0x00013000 0xffbeb000 On-Chip Peripherals + * 0xC0000000 0x00001000 0xFEF13000 PCI CFG * - * 0xC4000000 0x00001000 0xffbfe000 EXP CFG + * 0xC4000000 0x00001000 0xFEF14000 EXP CFG * - * 0xC0000000 0x00001000 0xffbff000 PCI CFG + * 0x60000000 0x00004000 0xFEF15000 QMgr */ /* * Queue Manager */ -#define IXP4XX_QMGR_BASE_PHYS (0x60000000) -#define IXP4XX_QMGR_BASE_VIRT IOMEM(0xFFBE7000) -#define IXP4XX_QMGR_REGION_SIZE (0x00004000) +#define IXP4XX_QMGR_BASE_PHYS 0x60000000 +#define IXP4XX_QMGR_BASE_VIRT IOMEM(0xFEF15000) +#define IXP4XX_QMGR_REGION_SIZE 0x00004000 /* - * Expansion BUS Configuration registers + * Peripheral space, including debug UART. Must be section-aligned so that + * it can be used with the low-level debug code. */ -#define IXP4XX_EXP_CFG_BASE_PHYS (0xC4000000) -#define IXP4XX_EXP_CFG_BASE_VIRT IOMEM(0xFFBFE000) -#define IXP4XX_EXP_CFG_REGION_SIZE (0x00001000) +#define IXP4XX_PERIPHERAL_BASE_PHYS 0xC8000000 +#define IXP4XX_PERIPHERAL_BASE_VIRT IOMEM(0xFEF00000) +#define IXP4XX_PERIPHERAL_REGION_SIZE 0x00013000 /* * PCI Config registers */ -#define IXP4XX_PCI_CFG_BASE_PHYS (0xC0000000) -#define IXP4XX_PCI_CFG_BASE_VIRT IOMEM(0xFFBFF000) -#define IXP4XX_PCI_CFG_REGION_SIZE (0x00001000) - -/* - * Peripheral space - */ -#define IXP4XX_PERIPHERAL_BASE_PHYS (0xC8000000) -#define IXP4XX_PERIPHERAL_BASE_VIRT IOMEM(0xFFBEB000) -#define IXP4XX_PERIPHERAL_REGION_SIZE (0x00013000) +#define IXP4XX_PCI_CFG_BASE_PHYS 0xC0000000 +#define IXP4XX_PCI_CFG_BASE_VIRT IOMEM(0xFEF13000) +#define IXP4XX_PCI_CFG_REGION_SIZE 0x00001000 /* - * Debug UART - * - * This is basically a remap of UART1 into a region that is section - * aligned so that it * can be used with the low-level debug code. + * Expansion BUS Configuration registers */ -#define IXP4XX_DEBUG_UART_BASE_PHYS (0xC8000000) -#define IXP4XX_DEBUG_UART_BASE_VIRT IOMEM(0xffb00000) -#define IXP4XX_DEBUG_UART_REGION_SIZE (0x00001000) +#define IXP4XX_EXP_CFG_BASE_PHYS 0xC4000000 +#define IXP4XX_EXP_CFG_BASE_VIRT 0xFEF14000 +#define IXP4XX_EXP_CFG_REGION_SIZE 0x00001000 #define IXP4XX_EXP_CS0_OFFSET 0x00 #define IXP4XX_EXP_CS1_OFFSET 0x04 -- cgit v0.10.2 From 0d2c9f0517e915ce03a04e91d3207827e0d274a8 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 28 Sep 2012 23:36:10 +0200 Subject: IXP4xx: use __iomem for MMIO MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The ixp4xx queue manager uses "const struct qmgr_regs __iomem *" as the type for a pointer that is passed to __raw_writel, which is not allowed because of the const-ness. Dropping the 'const' keyword fixes the problem. While we're here, let's also drop the useless type cast. Without this patch, building ixp4xx_defconfig results in: In file included from arch/arm/mach-ixp4xx/ixp4xx_qmgr.c:15:0: arch/arm/mach-ixp4xx/include/mach/qmgr.h: In function 'qmgr_put_entry': arch/arm/mach-ixp4xx/include/mach/qmgr.h:96:2: warning: passing argument 2 of '__raw_writel' discards 'const' qualifier from pointer target type [enabled by default] arch/arm/include/asm/io.h:88:91: note: expected 'volatile void *' but argument is of type 'const u32 *' In file included from drivers/net/ethernet/xscale/ixp4xx_eth.c:41:0: arch/arm/mach-ixp4xx/include/mach/qmgr.h: In function 'qmgr_put_entry': arch/arm/mach-ixp4xx/include/mach/qmgr.h:96:2: warning: passing argument 2 of '__raw_writel' discards 'const' qualifier from pointer target type [enabled by default] arch/arm/include/asm/io.h:88:91: note: expected 'volatile void *' but argument is of type 'const u32 *' arch/arm/mach-ixp4xx/ixp4xx_qmgr.c: In function 'qmgr_set_irq': arch/arm/mach-ixp4xx/ixp4xx_qmgr.c:41:9: warning: passing argument 2 of '__raw_writel' discards 'const' qualifier from pointer target type [enabled by default] arch/arm/include/asm/io.h:88:91: note: expected 'volatile void *' but argument is of type 'const u32 *' Signed-off-by: Arnd Bergmann Signed-off-by: Krzysztof Hałasa diff --git a/arch/arm/mach-ixp4xx/include/mach/qmgr.h b/arch/arm/mach-ixp4xx/include/mach/qmgr.h index 0a88d3b..4de8da5 100644 --- a/arch/arm/mach-ixp4xx/include/mach/qmgr.h +++ b/arch/arm/mach-ixp4xx/include/mach/qmgr.h @@ -86,7 +86,7 @@ void qmgr_release_queue(unsigned int queue); static inline void qmgr_put_entry(unsigned int queue, u32 val) { - const struct qmgr_regs __iomem *qmgr_regs = (void __iomem *)IXP4XX_QMGR_BASE_VIRT; + struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; #if DEBUG_QMGR BUG_ON(!qmgr_queue_descs[queue]); /* not yet requested */ @@ -99,7 +99,7 @@ static inline void qmgr_put_entry(unsigned int queue, u32 val) static inline u32 qmgr_get_entry(unsigned int queue) { u32 val; - const struct qmgr_regs __iomem *qmgr_regs = (void __iomem *)IXP4XX_QMGR_BASE_VIRT; + const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; val = __raw_readl(&qmgr_regs->acc[queue][0]); #if DEBUG_QMGR BUG_ON(!qmgr_queue_descs[queue]); /* not yet requested */ @@ -112,14 +112,14 @@ static inline u32 qmgr_get_entry(unsigned int queue) static inline int __qmgr_get_stat1(unsigned int queue) { - const struct qmgr_regs __iomem *qmgr_regs = (void __iomem *)IXP4XX_QMGR_BASE_VIRT; + const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; return (__raw_readl(&qmgr_regs->stat1[queue >> 3]) >> ((queue & 7) << 2)) & 0xF; } static inline int __qmgr_get_stat2(unsigned int queue) { - const struct qmgr_regs __iomem *qmgr_regs = (void __iomem *)IXP4XX_QMGR_BASE_VIRT; + const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; BUG_ON(queue >= HALF_QUEUES); return (__raw_readl(&qmgr_regs->stat2[queue >> 4]) >> ((queue & 0xF) << 1)) & 0x3; @@ -145,7 +145,7 @@ static inline int qmgr_stat_empty(unsigned int queue) */ static inline int qmgr_stat_below_low_watermark(unsigned int queue) { - const struct qmgr_regs __iomem *qmgr_regs = (void __iomem *)IXP4XX_QMGR_BASE_VIRT; + const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; if (queue >= HALF_QUEUES) return (__raw_readl(&qmgr_regs->statne_h) >> (queue - HALF_QUEUES)) & 0x01; @@ -172,7 +172,7 @@ static inline int qmgr_stat_above_high_watermark(unsigned int queue) */ static inline int qmgr_stat_full(unsigned int queue) { - const struct qmgr_regs __iomem *qmgr_regs = (void __iomem *)IXP4XX_QMGR_BASE_VIRT; + const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; if (queue >= HALF_QUEUES) return (__raw_readl(&qmgr_regs->statf_h) >> (queue - HALF_QUEUES)) & 0x01; diff --git a/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c b/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c index 7c0584e..9d1b6b7 100644 --- a/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c +++ b/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c @@ -14,7 +14,7 @@ #include #include -static const struct qmgr_regs __iomem *qmgr_regs = (void __iomem *)IXP4XX_QMGR_BASE_VIRT; +static struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; static struct resource *mem_res; static spinlock_t qmgr_lock; static u32 used_sram_bitmap[4]; /* 128 16-dword pages */ @@ -32,7 +32,7 @@ void qmgr_set_irq(unsigned int queue, int src, spin_lock_irqsave(&qmgr_lock, flags); if (queue < HALF_QUEUES) { - const u32 __iomem *reg; + u32 __iomem *reg; int bit; BUG_ON(src > QUEUE_IRQ_SRC_NOT_FULL); reg = &qmgr_regs->irqsrc[queue >> 3]; /* 8 queues per u32 */ -- cgit v0.10.2 From e7c0c3fa29280d62aa5e11101a674bb3064bd791 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 22 Nov 2012 14:42:49 +1100 Subject: md/raid10: close race that lose writes lost when replacement completes. When a replacement operation completes there is a small window when the original device is marked 'faulty' and the replacement still looks like a replacement. The faulty should be removed and the replacement moved in place very quickly, bit it isn't instant. So the code write out to the array must handle the possibility that the only working device for some slot in the replacement - but it doesn't. If the primary device is faulty it just gives up. This can lead to corruption. So make the code more robust: if either the primary or the replacement is present and working, write to them. Only when neither are present do we give up. This bug has been present since replacement was introduced in 3.3, so it is suitable for any -stable kernel since then. Reported-by: "George Spelvin" Cc: stable@vger.kernel.org Signed-off-by: NeilBrown diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index d1295af..ad03251 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1334,18 +1334,21 @@ retry_write: blocked_rdev = rrdev; break; } + if (rdev && (test_bit(Faulty, &rdev->flags) + || test_bit(Unmerged, &rdev->flags))) + rdev = NULL; if (rrdev && (test_bit(Faulty, &rrdev->flags) || test_bit(Unmerged, &rrdev->flags))) rrdev = NULL; r10_bio->devs[i].bio = NULL; r10_bio->devs[i].repl_bio = NULL; - if (!rdev || test_bit(Faulty, &rdev->flags) || - test_bit(Unmerged, &rdev->flags)) { + + if (!rdev && !rrdev) { set_bit(R10BIO_Degraded, &r10_bio->state); continue; } - if (test_bit(WriteErrorSeen, &rdev->flags)) { + if (rdev && test_bit(WriteErrorSeen, &rdev->flags)) { sector_t first_bad; sector_t dev_sector = r10_bio->devs[i].addr; int bad_sectors; @@ -1387,8 +1390,10 @@ retry_write: max_sectors = good_sectors; } } - r10_bio->devs[i].bio = bio; - atomic_inc(&rdev->nr_pending); + if (rdev) { + r10_bio->devs[i].bio = bio; + atomic_inc(&rdev->nr_pending); + } if (rrdev) { r10_bio->devs[i].repl_bio = bio; atomic_inc(&rrdev->nr_pending); @@ -1444,69 +1449,71 @@ retry_write: for (i = 0; i < conf->copies; i++) { struct bio *mbio; int d = r10_bio->devs[i].devnum; - if (!r10_bio->devs[i].bio) - continue; + if (r10_bio->devs[i].bio) { + struct md_rdev *rdev = conf->mirrors[d].rdev; + mbio = bio_clone_mddev(bio, GFP_NOIO, mddev); + md_trim_bio(mbio, r10_bio->sector - bio->bi_sector, + max_sectors); + r10_bio->devs[i].bio = mbio; + + mbio->bi_sector = (r10_bio->devs[i].addr+ + choose_data_offset(r10_bio, + rdev)); + mbio->bi_bdev = rdev->bdev; + mbio->bi_end_io = raid10_end_write_request; + mbio->bi_rw = WRITE | do_sync | do_fua | do_discard; + mbio->bi_private = r10_bio; - mbio = bio_clone_mddev(bio, GFP_NOIO, mddev); - md_trim_bio(mbio, r10_bio->sector - bio->bi_sector, - max_sectors); - r10_bio->devs[i].bio = mbio; + atomic_inc(&r10_bio->remaining); - mbio->bi_sector = (r10_bio->devs[i].addr+ - choose_data_offset(r10_bio, - conf->mirrors[d].rdev)); - mbio->bi_bdev = conf->mirrors[d].rdev->bdev; - mbio->bi_end_io = raid10_end_write_request; - mbio->bi_rw = WRITE | do_sync | do_fua | do_discard; - mbio->bi_private = r10_bio; + cb = blk_check_plugged(raid10_unplug, mddev, + sizeof(*plug)); + if (cb) + plug = container_of(cb, struct raid10_plug_cb, + cb); + else + plug = NULL; + spin_lock_irqsave(&conf->device_lock, flags); + if (plug) { + bio_list_add(&plug->pending, mbio); + plug->pending_cnt++; + } else { + bio_list_add(&conf->pending_bio_list, mbio); + conf->pending_count++; + } + spin_unlock_irqrestore(&conf->device_lock, flags); + if (!plug) + md_wakeup_thread(mddev->thread); + } - atomic_inc(&r10_bio->remaining); + if (r10_bio->devs[i].repl_bio) { + struct md_rdev *rdev = conf->mirrors[d].replacement; + if (rdev == NULL) { + /* Replacement just got moved to main 'rdev' */ + smp_mb(); + rdev = conf->mirrors[d].rdev; + } + mbio = bio_clone_mddev(bio, GFP_NOIO, mddev); + md_trim_bio(mbio, r10_bio->sector - bio->bi_sector, + max_sectors); + r10_bio->devs[i].repl_bio = mbio; + + mbio->bi_sector = (r10_bio->devs[i].addr + + choose_data_offset( + r10_bio, rdev)); + mbio->bi_bdev = rdev->bdev; + mbio->bi_end_io = raid10_end_write_request; + mbio->bi_rw = WRITE | do_sync | do_fua | do_discard; + mbio->bi_private = r10_bio; - cb = blk_check_plugged(raid10_unplug, mddev, sizeof(*plug)); - if (cb) - plug = container_of(cb, struct raid10_plug_cb, cb); - else - plug = NULL; - spin_lock_irqsave(&conf->device_lock, flags); - if (plug) { - bio_list_add(&plug->pending, mbio); - plug->pending_cnt++; - } else { + atomic_inc(&r10_bio->remaining); + spin_lock_irqsave(&conf->device_lock, flags); bio_list_add(&conf->pending_bio_list, mbio); conf->pending_count++; + spin_unlock_irqrestore(&conf->device_lock, flags); + if (!mddev_check_plugged(mddev)) + md_wakeup_thread(mddev->thread); } - spin_unlock_irqrestore(&conf->device_lock, flags); - if (!plug) - md_wakeup_thread(mddev->thread); - - if (!r10_bio->devs[i].repl_bio) - continue; - - mbio = bio_clone_mddev(bio, GFP_NOIO, mddev); - md_trim_bio(mbio, r10_bio->sector - bio->bi_sector, - max_sectors); - r10_bio->devs[i].repl_bio = mbio; - - /* We are actively writing to the original device - * so it cannot disappear, so the replacement cannot - * become NULL here - */ - mbio->bi_sector = (r10_bio->devs[i].addr + - choose_data_offset( - r10_bio, - conf->mirrors[d].replacement)); - mbio->bi_bdev = conf->mirrors[d].replacement->bdev; - mbio->bi_end_io = raid10_end_write_request; - mbio->bi_rw = WRITE | do_sync | do_fua | do_discard; - mbio->bi_private = r10_bio; - - atomic_inc(&r10_bio->remaining); - spin_lock_irqsave(&conf->device_lock, flags); - bio_list_add(&conf->pending_bio_list, mbio); - conf->pending_count++; - spin_unlock_irqrestore(&conf->device_lock, flags); - if (!mddev_check_plugged(mddev)) - md_wakeup_thread(mddev->thread); } /* Don't remove the bias on 'remaining' (one_write_done) until -- cgit v0.10.2 From 884162df2aadd7414bef4935e1a54976fd4e3988 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 22 Nov 2012 15:12:09 +1100 Subject: md/raid10: decrement correct pending counter when writing to replacement. When a write to a replacement device completes, we carefully and correctly found the rdev that the write actually went to and the blithely called rdev_dec_pending on the primary rdev, even if this write was to the replacement. This means that any writes to an array while a replacement was ongoing would cause the nr_pending count for the primary device to go negative, so it could never be removed. This bug has been present since replacement was introduced in 3.3, so it is suitable for any -stable kernel since then. Reported-by: "George Spelvin" Cc: stable@vger.kernel.org Signed-off-by: NeilBrown diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index ad03251..0d5d0ff 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -499,7 +499,7 @@ static void raid10_end_write_request(struct bio *bio, int error) */ one_write_done(r10_bio); if (dec_rdev) - rdev_dec_pending(conf->mirrors[dev].rdev, conf->mddev); + rdev_dec_pending(rdev, conf->mddev); } /* -- cgit v0.10.2 From 129495dee5e1b76e8c8bf342c0f7ad18544d79a9 Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Fri, 9 Nov 2012 16:41:29 +0900 Subject: drm/exynos: fix linux framebuffer address setting. With iommu, buffer->dma_addr has device addres so this patch fixes for physical address to be set to fix.smem_start always. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index 67eb6ba..e7466c4 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -87,7 +87,8 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, dev->mode_config.fb_base = (resource_size_t)buffer->dma_addr; fbi->screen_base = buffer->kvaddr + offset; - fbi->fix.smem_start = (unsigned long)(buffer->dma_addr + offset); + fbi->fix.smem_start = (unsigned long)(page_to_phys(buffer->pages[0]) + + offset); fbi->screen_size = size; fbi->fix.smem_len = size; -- cgit v0.10.2 From a39b49812fe0c3f62fd3f7f6ec8c10d8f7035992 Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Wed, 14 Nov 2012 17:28:36 +0900 Subject: drm/exynos: remove unnecessary code. plane->fb will be set to new fb after update_plane callback is called by drm_mode_set_plane() Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c index 60b877a..862ca1e 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_plane.c +++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c @@ -204,7 +204,6 @@ exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, return ret; plane->crtc = crtc; - plane->fb = crtc->fb; exynos_plane_commit(plane); exynos_plane_dpms(plane, DRM_MODE_DPMS_ON); -- cgit v0.10.2 From ffe9955a741a2742cc517245b2219b61cc6dde28 Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Wed, 14 Nov 2012 20:41:35 +0900 Subject: drm/exynos: fix overlay updating issue Chagelog v2: Move encoder's dpms updating into exynos_drm_encoder_commit function because when crtc's dpms is updated, encoder's dpms is updated also. This would induce the issue that encoder isn't disabled after crtc is disabled. Changelog v1: This patch fixes a issue that overlay data aren't applied to real hardware when dpms off goes to on after setcrtc was requested like below, dpms off -> setcrtc -> dpms off -> dpms on For this, it makes encoder's dpms to be updated when setcrtc is requested. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c index 241ad1e..607231a 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c +++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c @@ -226,6 +226,12 @@ static void exynos_drm_encoder_commit(struct drm_encoder *encoder) * already updated or not by exynos_drm_encoder_dpms function. */ exynos_encoder->updated = true; + + /* + * In case of setcrtc, there is no way to update encoder's dpms + * so update it here. + */ + exynos_encoder->dpms = DRM_MODE_DPMS_ON; } static void exynos_drm_encoder_disable(struct drm_encoder *encoder) -- cgit v0.10.2 From 77b1c0362ffdb11128590a7248f3f8c434ab42f2 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 19 Nov 2012 15:22:54 +0530 Subject: drm/exynos: Make exynos4/5_fimd_driver_data static Fixes the following sparse warnings: drivers/gpu/drm/exynos/exynos_drm_fimd.c:65:25: warning: symbol 'exynos4_fimd_driver_data' was not declared. Should it be static? drivers/gpu/drm/exynos/exynos_drm_fimd.c:69:25: warning: symbol 'exynos5_fimd_driver_data' was not declared. Should it be static? Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index 130a2b5..e08478f 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -61,11 +61,11 @@ struct fimd_driver_data { unsigned int timing_base; }; -struct fimd_driver_data exynos4_fimd_driver_data = { +static struct fimd_driver_data exynos4_fimd_driver_data = { .timing_base = 0x0, }; -struct fimd_driver_data exynos5_fimd_driver_data = { +static struct fimd_driver_data exynos5_fimd_driver_data = { .timing_base = 0x20000, }; -- cgit v0.10.2 From c69d5276704e1a9c771de57c0a2e7b69ea3ea578 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 19 Nov 2012 14:50:30 +0530 Subject: drm/exynos: Fix potential NULL pointer dereference in exynos_drm_encoder.c Check overlay_ops is not NULL as checked in the previous 'if' condition. Fixes the following smatch error: drivers/gpu/drm/exynos/exynos_drm_encoder.c:509 exynos_drm_encoder_plane_disable() error: we previously assumed 'overlay_ops' could be null (see line 499) Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c index 607231a..f2df06c 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c +++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c @@ -513,6 +513,6 @@ void exynos_drm_encoder_plane_disable(struct drm_encoder *encoder, void *data) * because the setting for disabling the overlay will be updated * at vsync. */ - if (overlay_ops->wait_for_vblank) + if (overlay_ops && overlay_ops->wait_for_vblank) overlay_ops->wait_for_vblank(manager->dev); } -- cgit v0.10.2 From 441a179dafc0f99fc8b3a8268eef66958621082e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 21 Nov 2012 19:27:23 +0000 Subject: [PARISC] fix user-triggerable panic on parisc int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set, compat_sigset_t __user *oset, unsigned int sigsetsize) { sigset_t old_set, new_set; int ret; if (set && get_sigset32(set, &new_set, sigsetsize)) ... static int get_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz) { compat_sigset_t s; int r; if (sz != sizeof *set) panic("put_sigset32()"); In other words, rt_sigprocmask(69, (void *)69, 69) done by 32bit process will promptly panic the box. Signed-off-by: Al Viro Cc: Signed-off-by: James Bottomley diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c index fd49aed..5dede04 100644 --- a/arch/parisc/kernel/signal32.c +++ b/arch/parisc/kernel/signal32.c @@ -65,7 +65,8 @@ put_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz) { compat_sigset_t s; - if (sz != sizeof *set) panic("put_sigset32()"); + if (sz != sizeof *set) + return -EINVAL; sigset_64to32(&s, set); return copy_to_user(up, &s, sizeof s); @@ -77,7 +78,8 @@ get_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz) compat_sigset_t s; int r; - if (sz != sizeof *set) panic("put_sigset32()"); + if (sz != sizeof *set) + return -EINVAL; if ((r = copy_from_user(&s, up, sz)) == 0) { sigset_32to64(set, &s); -- cgit v0.10.2 From 17803580ace1953e78a995423f4945f77f0deb80 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 28 Sep 2012 07:28:58 -0300 Subject: [media] media: sh_vou: fix const cropping related warnings A recent commit "[media] v4l2: make vidioc_s_crop const" introduced warnings in sh_vou. Fix them by cleanly separating writable and read-only variables in cropping operations. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/sh_vou.c b/drivers/media/platform/sh_vou.c index 85fd312..a1c87f0 100644 --- a/drivers/media/platform/sh_vou.c +++ b/drivers/media/platform/sh_vou.c @@ -935,9 +935,10 @@ static int sh_vou_g_crop(struct file *file, void *fh, struct v4l2_crop *a) /* Assume a dull encoder, do all the work ourselves. */ static int sh_vou_s_crop(struct file *file, void *fh, const struct v4l2_crop *a) { + struct v4l2_crop a_writable = *a; struct video_device *vdev = video_devdata(file); struct sh_vou_device *vou_dev = video_get_drvdata(vdev); - struct v4l2_rect *rect = &a->c; + struct v4l2_rect *rect = &a_writable.c; struct v4l2_crop sd_crop = {.type = V4L2_BUF_TYPE_VIDEO_OUTPUT}; struct v4l2_pix_format *pix = &vou_dev->pix; struct sh_vou_geometry geo; -- cgit v0.10.2 From 3ecb091e8827b4939b917139f4a86a66d36ed7e1 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 28 Sep 2012 06:59:58 -0300 Subject: [media] media: sh_mobile_ceu_camera: fix const cropping related warnings A recent commit "[media] v4l2: make vidioc_s_crop const" introduced warnings in sh_mobile_ceu_camera. Fix them by cleanly separating writable and read-only variables in cropping operations. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c b/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c index 0a24253..2d8861c 100644 --- a/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c +++ b/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c @@ -1182,13 +1182,13 @@ static void sh_mobile_ceu_put_formats(struct soc_camera_device *icd) } /* Check if any dimension of r1 is smaller than respective one of r2 */ -static bool is_smaller(struct v4l2_rect *r1, struct v4l2_rect *r2) +static bool is_smaller(const struct v4l2_rect *r1, const struct v4l2_rect *r2) { return r1->width < r2->width || r1->height < r2->height; } /* Check if r1 fails to cover r2 */ -static bool is_inside(struct v4l2_rect *r1, struct v4l2_rect *r2) +static bool is_inside(const struct v4l2_rect *r1, const struct v4l2_rect *r2) { return r1->left > r2->left || r1->top > r2->top || r1->left + r1->width < r2->left + r2->width || @@ -1263,7 +1263,7 @@ static void update_subrect(struct sh_mobile_ceu_cam *cam) * 3. if (2) failed, try to request the maximum image */ static int client_s_crop(struct soc_camera_device *icd, struct v4l2_crop *crop, - const struct v4l2_crop *cam_crop) + struct v4l2_crop *cam_crop) { struct v4l2_subdev *sd = soc_camera_to_subdev(icd); struct v4l2_rect *rect = &crop->c, *cam_rect = &cam_crop->c; @@ -1519,7 +1519,8 @@ static int client_scale(struct soc_camera_device *icd, static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd, const struct v4l2_crop *a) { - struct v4l2_rect *rect = &a->c; + struct v4l2_crop a_writable = *a; + const struct v4l2_rect *rect = &a_writable.c; struct device *dev = icd->parent; struct soc_camera_host *ici = to_soc_camera_host(dev); struct sh_mobile_ceu_dev *pcdev = ici->priv; @@ -1545,7 +1546,7 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd, * 1. - 2. Apply iterative camera S_CROP for new input window, read back * actual camera rectangle. */ - ret = client_s_crop(icd, a, &cam_crop); + ret = client_s_crop(icd, &a_writable, &cam_crop); if (ret < 0) return ret; @@ -1946,7 +1947,7 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd, } static int sh_mobile_ceu_set_livecrop(struct soc_camera_device *icd, - struct v4l2_crop *a) + const struct v4l2_crop *a) { struct v4l2_subdev *sd = soc_camera_to_subdev(icd); struct soc_camera_host *ici = to_soc_camera_host(icd->parent); -- cgit v0.10.2 From 448a61f09e319c54bf149a20d9c8f63d5242a936 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 28 Sep 2012 07:27:30 -0300 Subject: [media] media: pxa_camera: fix const cropping related warnings A recent commit "[media] v4l2: make vidioc_s_crop const" introduced warnings in pxa_camera.c. Fix them by adjusting a function declaration. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/soc_camera/pxa_camera.c b/drivers/media/platform/soc_camera/pxa_camera.c index 1e3776d..3434ffe 100644 --- a/drivers/media/platform/soc_camera/pxa_camera.c +++ b/drivers/media/platform/soc_camera/pxa_camera.c @@ -1337,9 +1337,9 @@ static int pxa_camera_check_frame(u32 width, u32 height) } static int pxa_camera_set_crop(struct soc_camera_device *icd, - struct v4l2_crop *a) + const struct v4l2_crop *a) { - struct v4l2_rect *rect = &a->c; + const struct v4l2_rect *rect = &a->c; struct device *dev = icd->parent; struct soc_camera_host *ici = to_soc_camera_host(dev); struct pxa_camera_dev *pcdev = ici->priv; -- cgit v0.10.2 From 60cd1ee17d9d91aeaa4224a15595dd27163ac57d Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 28 Sep 2012 07:39:06 -0300 Subject: [media] media: mx3_camera: fix const cropping related warnings A recent commit "[media] v4l2: make vidioc_s_crop const" introduced warnings in mx3_camera. Fix them by cleanly separating writable and read-only variables in cropping operations. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/soc_camera/mx3_camera.c b/drivers/media/platform/soc_camera/mx3_camera.c index 3557ac9..261f6e9 100644 --- a/drivers/media/platform/soc_camera/mx3_camera.c +++ b/drivers/media/platform/soc_camera/mx3_camera.c @@ -799,9 +799,10 @@ static inline void stride_align(__u32 *width) * default g_crop and cropcap from soc_camera.c */ static int mx3_camera_set_crop(struct soc_camera_device *icd, - struct v4l2_crop *a) + const struct v4l2_crop *a) { - struct v4l2_rect *rect = &a->c; + struct v4l2_crop a_writable = *a; + struct v4l2_rect *rect = &a_writable.c; struct soc_camera_host *ici = to_soc_camera_host(icd->parent); struct mx3_camera_dev *mx3_cam = ici->priv; struct v4l2_subdev *sd = soc_camera_to_subdev(icd); -- cgit v0.10.2 From d63bb2790c0e1c44434cb2cc5292cd23d25d4ca5 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 28 Sep 2012 07:46:52 -0300 Subject: [media] media: mx2_camera: fix const cropping related warnings A recent commit "[media] v4l2: make vidioc_s_crop const" introduced warnings in mx2_camera. Fix them by cleanly separating writable and read-only variables in cropping operations. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/soc_camera/mx2_camera.c b/drivers/media/platform/soc_camera/mx2_camera.c index 9fd9d1c..f36b362 100644 --- a/drivers/media/platform/soc_camera/mx2_camera.c +++ b/drivers/media/platform/soc_camera/mx2_camera.c @@ -1099,9 +1099,10 @@ static int mx2_camera_set_bus_param(struct soc_camera_device *icd) } static int mx2_camera_set_crop(struct soc_camera_device *icd, - struct v4l2_crop *a) + const struct v4l2_crop *a) { - struct v4l2_rect *rect = &a->c; + struct v4l2_crop a_writable = *a; + struct v4l2_rect *rect = &a_writable.c; struct v4l2_subdev *sd = soc_camera_to_subdev(icd); struct v4l2_mbus_framefmt mf; int ret; -- cgit v0.10.2 From 5c111913347e60c364776824e1ed766dd8958ffa Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 28 Sep 2012 07:48:26 -0300 Subject: [media] media: mx1_camera: use the default .set_crop() implementation .set_crop() implementation in mx1_camera is identical with the default. Remove the copy to switch to using the default stab. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/soc_camera/mx1_camera.c b/drivers/media/platform/soc_camera/mx1_camera.c index bbe7099..032b8c9 100644 --- a/drivers/media/platform/soc_camera/mx1_camera.c +++ b/drivers/media/platform/soc_camera/mx1_camera.c @@ -470,14 +470,6 @@ static void mx1_camera_remove_device(struct soc_camera_device *icd) pcdev->icd = NULL; } -static int mx1_camera_set_crop(struct soc_camera_device *icd, - struct v4l2_crop *a) -{ - struct v4l2_subdev *sd = soc_camera_to_subdev(icd); - - return v4l2_subdev_call(sd, video, s_crop, a); -} - static int mx1_camera_set_bus_param(struct soc_camera_device *icd) { struct v4l2_subdev *sd = soc_camera_to_subdev(icd); @@ -689,7 +681,6 @@ static struct soc_camera_host_ops mx1_soc_camera_host_ops = { .add = mx1_camera_add_device, .remove = mx1_camera_remove_device, .set_bus_param = mx1_camera_set_bus_param, - .set_crop = mx1_camera_set_crop, .set_fmt = mx1_camera_set_fmt, .try_fmt = mx1_camera_try_fmt, .init_videobuf = mx1_camera_init_videobuf, -- cgit v0.10.2 From 6a3082adc85a3acc9258ad2e4858abc55be9b514 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 28 Sep 2012 07:57:17 -0300 Subject: [media] media: omap1_camera: fix const cropping related warnings A recent commit "[media] v4l2: make vidioc_s_crop const" introduced warnings in omap1_camera. Fix them by adjusting a function declaration. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/soc_camera/omap1_camera.c b/drivers/media/platform/soc_camera/omap1_camera.c index fa08c76..13636a5 100644 --- a/drivers/media/platform/soc_camera/omap1_camera.c +++ b/drivers/media/platform/soc_camera/omap1_camera.c @@ -1215,9 +1215,9 @@ static int set_mbus_format(struct omap1_cam_dev *pcdev, struct device *dev, } static int omap1_cam_set_crop(struct soc_camera_device *icd, - struct v4l2_crop *crop) + const struct v4l2_crop *crop) { - struct v4l2_rect *rect = &crop->c; + const struct v4l2_rect *rect = &crop->c; const struct soc_camera_format_xlate *xlate = icd->current_fmt; struct v4l2_subdev *sd = soc_camera_to_subdev(icd); struct device *dev = icd->parent; -- cgit v0.10.2 From f1ccccaf23132a2eda036dd3978ebe3f020c5af9 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 22 Oct 2012 02:27:28 -0300 Subject: [media] mx2_camera: fix missing unlock on error in mx2_start_streaming() Add the missing unlock on the error handle path in function mx2_start_streaming(). Signed-off-by: Wei Yongjun Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/soc_camera/mx2_camera.c b/drivers/media/platform/soc_camera/mx2_camera.c index f36b362..9a55f4c 100644 --- a/drivers/media/platform/soc_camera/mx2_camera.c +++ b/drivers/media/platform/soc_camera/mx2_camera.c @@ -864,8 +864,10 @@ static int mx2_start_streaming(struct vb2_queue *q, unsigned int count) bytesperline = soc_mbus_bytes_per_line(icd->user_width, icd->current_fmt->host_fmt); - if (bytesperline < 0) + if (bytesperline < 0) { + spin_unlock_irqrestore(&pcdev->lock, flags); return bytesperline; + } /* * I didn't manage to properly enable/disable the prp @@ -878,8 +880,10 @@ static int mx2_start_streaming(struct vb2_queue *q, unsigned int count) pcdev->discard_buffer = dma_alloc_coherent(ici->v4l2_dev.dev, pcdev->discard_size, &pcdev->discard_buffer_dma, GFP_KERNEL); - if (!pcdev->discard_buffer) + if (!pcdev->discard_buffer) { + spin_unlock_irqrestore(&pcdev->lock, flags); return -ENOMEM; + } pcdev->buf_discard[0].discard = true; list_add_tail(&pcdev->buf_discard[0].queue, -- cgit v0.10.2 From 9bb047cd1a7efc162205ce48013ef3a2287b0e9f Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Thu, 27 Sep 2012 19:04:34 -0300 Subject: [media] mt9v022: fix the V4L2_CID_EXPOSURE control Since the MT9V022_TOTAL_SHUTTER_WIDTH register is controlled in manual mode by V4L2_CID_EXPOSURE control, it shouldn't be written directly in mt9v022_s_crop(). In manual mode this register should be set to the V4L2_CID_EXPOSURE control value. Changing this register directly and outside of the actual control function means that the register value is not in sync with the corresponding control value. Thus, the following problem is observed: - setting this control initially succeeds - VIDIOC_S_CROP ioctl() overwrites the MT9V022_TOTAL_SHUTTER_WIDTH register - setting this control to the same value again doesn't result in setting the register since the control value was previously cached and doesn't differ Remove MT9V022_TOTAL_SHUTTER_WIDTH register setting in mt9v022_s_crop() and add a comment explaining why it is not needed in manual mode. Signed-off-by: Anatolij Gustschin Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/i2c/soc_camera/mt9v022.c b/drivers/media/i2c/soc_camera/mt9v022.c index 13057b9..333ef17 100644 --- a/drivers/media/i2c/soc_camera/mt9v022.c +++ b/drivers/media/i2c/soc_camera/mt9v022.c @@ -263,9 +263,14 @@ static int mt9v022_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a) if (ret & 1) /* Autoexposure */ ret = reg_write(client, mt9v022->reg->max_total_shutter_width, rect.height + mt9v022->y_skip_top + 43); - else - ret = reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH, - rect.height + mt9v022->y_skip_top + 43); + /* + * If autoexposure is off, there is no need to set + * MT9V022_TOTAL_SHUTTER_WIDTH here. Autoexposure can be off + * only if the user has set exposure manually, using the + * V4L2_CID_EXPOSURE_AUTO with the value V4L2_EXPOSURE_MANUAL. + * In this case the register MT9V022_TOTAL_SHUTTER_WIDTH + * already contains the correct value. + */ } /* Setup frame format: defaults apart from width and height */ if (!ret) -- cgit v0.10.2 From 08e5727416840c4de8ec450064b131ddfb6ed838 Mon Sep 17 00:00:00 2001 From: Antti Palosaari Date: Tue, 6 Nov 2012 16:03:35 -0300 Subject: [media] rtl28xxu: 1d19:1102 Dexatek DK mini DVB-T Dongle Add new USB ID as driver supports it. Reported-by: Hubert Lin Tested-by: Hubert Lin Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c index adabba8..0149cdd 100644 --- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c +++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c @@ -1346,6 +1346,8 @@ static const struct usb_device_id rtl28xxu_id_table[] = { &rtl2832u_props, "DigitalNow Quad DVB-T Receiver", NULL) }, { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d3, &rtl2832u_props, "TerraTec Cinergy T Stick RC (Rev. 3)", NULL) }, + { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1102, + &rtl2832u_props, "Dexatek DK mini DVB-T Dongle", NULL) }, { } }; MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table); -- cgit v0.10.2 From 86163adb8125a4ce85e0b23a50be82bd8c0daf95 Mon Sep 17 00:00:00 2001 From: Andrew Karpow Date: Tue, 6 Nov 2012 20:01:16 -0300 Subject: [media] rtl28xxu: 0ccd:00d7 TerraTec Cinergy T Stick+ added usb-id as driver supports the stick Signed-off-by: Andrew Karpow Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c index 0149cdd..093f1ac 100644 --- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c +++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c @@ -1348,6 +1348,8 @@ static const struct usb_device_id rtl28xxu_id_table[] = { &rtl2832u_props, "TerraTec Cinergy T Stick RC (Rev. 3)", NULL) }, { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1102, &rtl2832u_props, "Dexatek DK mini DVB-T Dongle", NULL) }, + { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d7, + &rtl2832u_props, "TerraTec Cinergy T Stick+", NULL) }, { } }; MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table); -- cgit v0.10.2 From 8ad9375f8b7c709b89f7de4de413bb2644ba3c24 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Wed, 21 Nov 2012 21:48:51 +0200 Subject: OMAPDSS: do not fail if dpll4_m4_ck is missing Do not fail if dpll4_m4_ck is missing. The clock is not there on omap24xx, so this should not be a hard error. The patch retains the functionality before the commit 185bae10 (OMAPDSS: DSS: Cleanup cpu_is_xxxx checks). Signed-off-by: Aaro Koskinen Signed-off-by: Tomi Valkeinen diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c index 0bb7406..5f6eea8 100644 --- a/drivers/video/omap2/dss/dss.c +++ b/drivers/video/omap2/dss/dss.c @@ -697,11 +697,15 @@ static int dss_get_clocks(void) dss.dss_clk = clk; - clk = clk_get(NULL, dss.feat->clk_name); - if (IS_ERR(clk)) { - DSSERR("Failed to get %s\n", dss.feat->clk_name); - r = PTR_ERR(clk); - goto err; + if (dss.feat->clk_name) { + clk = clk_get(NULL, dss.feat->clk_name); + if (IS_ERR(clk)) { + DSSERR("Failed to get %s\n", dss.feat->clk_name); + r = PTR_ERR(clk); + goto err; + } + } else { + clk = NULL; } dss.dpll4_m4_ck = clk; -- cgit v0.10.2 From 947d299686aa9cc8aecf749d54e8475c6e498956 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Thu, 22 Nov 2012 20:27:59 +0100 Subject: ALSA: snd-usb: properly initialize the sync endpoint Jeffrey Barish reported an obvious bug in the pcm part of the usb-audio driver which causes the code to not initialize the sync endpoint from configure_endpoint(). Reported-by: Jeffrey Barish Signed-off-by: Daniel Mack Cc: stable@kernel.org [3.5+] Signed-off-by: Takashi Iwai diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 5c12a3f..ef6fa24 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -459,7 +459,7 @@ static int configure_endpoint(struct snd_usb_substream *subs) return ret; if (subs->sync_endpoint) - ret = snd_usb_endpoint_set_params(subs->data_endpoint, + ret = snd_usb_endpoint_set_params(subs->sync_endpoint, subs->pcm_format, subs->channels, subs->period_bytes, -- cgit v0.10.2 From 9a30a61f3516871c5c638fd7c025fbaa11ddf7fe Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Mon, 12 Nov 2012 14:33:45 +0200 Subject: drm/i915: do not default to 18 bpp for eDP if missing from VBT commit 500a8cc466a24e2fbc4c86ef9c6467ae2ffdeb0c Author: Zhenyu Wang Date: Wed Jan 13 11:19:52 2010 +0800 drm/i915: parse eDP panel color depth from VBT block originally introduced parsing bpp for eDP from VBT, with a default of 18 bpp if the eDP BIOS data block is not present. Turns out that default seems to break the Macbook Pro with retina display, as noted in commit 4344b813f105a19f793f1fd93ad775b784648b95 Author: Daniel Vetter Date: Fri Aug 10 11:10:20 2012 +0200 drm/i915: ignore eDP bpc settings from vbt Since we can't ignore bpc settings from VBT completely after all, get rid of the default. Do not clamp eDP to 18 bpp by default if the eDP BDB is missing from VBT. Signed-off-by: Jani Nikula Tested-by: Henrik Rydberg [danvet: paste in the updated commit message from irc.] Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 0ed6baf..56846ed 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -499,12 +499,8 @@ parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb) edp = find_section(bdb, BDB_EDP); if (!edp) { - if (SUPPORTS_EDP(dev_priv->dev) && dev_priv->edp.support) { - DRM_DEBUG_KMS("No eDP BDB found but eDP panel " - "supported, assume %dbpp panel color " - "depth.\n", - dev_priv->edp.bpp); - } + if (SUPPORTS_EDP(dev_priv->dev) && dev_priv->edp.support) + DRM_DEBUG_KMS("No eDP BDB found but eDP panel supported.\n"); return; } @@ -657,9 +653,6 @@ init_vbt_defaults(struct drm_i915_private *dev_priv) dev_priv->lvds_use_ssc = 1; dev_priv->lvds_ssc_freq = intel_bios_ssc_frequency(dev, 1); DRM_DEBUG_KMS("Set default to SSC at %dMHz\n", dev_priv->lvds_ssc_freq); - - /* eDP data */ - dev_priv->edp.bpp = 18; } static int __init intel_no_opregion_vbt_callback(const struct dmi_system_id *id) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 4154bcd..b426d44 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3845,7 +3845,7 @@ static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc, /* Use VBT settings if we have an eDP panel */ unsigned int edp_bpc = dev_priv->edp.bpp / 3; - if (edp_bpc < display_bpc) { + if (edp_bpc && edp_bpc < display_bpc) { DRM_DEBUG_KMS("clamping display bpc (was %d) to eDP (%d)\n", display_bpc, edp_bpc); display_bpc = edp_bpc; } -- cgit v0.10.2 From 636174219b52b5a8bc51bc23bbcba97cd30a65e3 Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Thu, 22 Nov 2012 23:04:14 +0200 Subject: ipv4: do not cache looped multicasts Starting from 3.6 we cache output routes for multicasts only when using route to 224/4. For local receivers we can set RTCF_LOCAL flag depending on the membership but in such case we use maddr and saddr which are not caching keys as before. Additionally, we can not use same place to cache routes that differ in RTCF_LOCAL flag value. Fix it by caching only RTCF_MULTICAST entries without RTCF_LOCAL (send-only, no loopback). As a side effect, we avoid unneeded lookup for fnhe when not caching because multicasts are not redirected and they do not learn PMTU. Thanks to Maxime Bizon for showing the caching problems in __mkroute_output for 3.6 kernels: different RTCF_LOCAL flag in cache can lead to wrong ip_mc_output or ip_output call and the visible problem is that traffic can not reach local receivers via loopback. Reported-by: Maxime Bizon Tested-by: Maxime Bizon Signed-off-by: Julian Anastasov Signed-off-by: David S. Miller diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 200d287..df25142 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1785,6 +1785,7 @@ static struct rtable *__mkroute_output(const struct fib_result *res, if (dev_out->flags & IFF_LOOPBACK) flags |= RTCF_LOCAL; + do_cache = true; if (type == RTN_BROADCAST) { flags |= RTCF_BROADCAST | RTCF_LOCAL; fi = NULL; @@ -1793,6 +1794,8 @@ static struct rtable *__mkroute_output(const struct fib_result *res, if (!ip_check_mc_rcu(in_dev, fl4->daddr, fl4->saddr, fl4->flowi4_proto)) flags &= ~RTCF_LOCAL; + else + do_cache = false; /* If multicast route do not exist use * default one, but do not gateway in this case. * Yes, it is hack. @@ -1802,8 +1805,8 @@ static struct rtable *__mkroute_output(const struct fib_result *res, } fnhe = NULL; - do_cache = fi != NULL; - if (fi) { + do_cache &= fi != NULL; + if (do_cache) { struct rtable __rcu **prth; struct fib_nh *nh = &FIB_RES_NH(*res); -- cgit v0.10.2 From 958f9889950ef257f601c4902137caff291d5dd7 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sun, 18 Nov 2012 06:25:07 +0100 Subject: i2c: mxs: Handle i2c DMA failure properly Properly terminate the DMA transfer in case the DMA PIO transfer or setup fails for any reason. Signed-off-by: Marek Vasut Signed-off-by: Wolfram Sang diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c index 286ca19..0670da7 100644 --- a/drivers/i2c/busses/i2c-mxs.c +++ b/drivers/i2c/busses/i2c-mxs.c @@ -287,12 +287,14 @@ read_init_dma_fail: select_init_dma_fail: dma_unmap_sg(i2c->dev, &i2c->sg_io[0], 1, DMA_TO_DEVICE); select_init_pio_fail: + dmaengine_terminate_all(i2c->dmach); return -EINVAL; /* Write failpath. */ write_init_dma_fail: dma_unmap_sg(i2c->dev, i2c->sg_io, 2, DMA_TO_DEVICE); write_init_pio_fail: + dmaengine_terminate_all(i2c->dmach); return -EINVAL; } -- cgit v0.10.2 From bb4618823a3389086f157fafb2a0d97cade8d89f Mon Sep 17 00:00:00 2001 From: Alexey Kardashevskiy Date: Fri, 23 Nov 2012 13:25:39 +1100 Subject: powerpc/pseries: Fix oops with MSIs when missing EEH PEs The new EEH code introduced a small regression, if the EEH PEs are missin (which happens currently in qemu for example), it will deref a NULL pointer in the MSI code. Signed-off-by: Alexey Kardashevskiy Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c index d19f497..e5b0847 100644 --- a/arch/powerpc/platforms/pseries/msi.c +++ b/arch/powerpc/platforms/pseries/msi.c @@ -220,7 +220,8 @@ static struct device_node *find_pe_dn(struct pci_dev *dev, int *total) /* Get the top level device in the PE */ edev = of_node_to_eeh_dev(dn); - edev = list_first_entry(&edev->pe->edevs, struct eeh_dev, list); + if (edev->pe) + edev = list_first_entry(&edev->pe->edevs, struct eeh_dev, list); dn = eeh_dev_to_of_node(edev); if (!dn) return NULL; -- cgit v0.10.2 From 5010192d5ae589002c4453d6c6e662e5e9acae59 Mon Sep 17 00:00:00 2001 From: Dave Martin Date: Thu, 22 Nov 2012 12:50:43 +0100 Subject: ARM: 7583/1: decompressor: Enable unaligned memory access for v6 and above Modern GCC can generate code which makes use of the CPU's native unaligned memory access capabilities. This is useful for the C decompressor implementations used for unpacking compressed kernels. This patch disables alignment faults and enables the v6 unaligned access model on CPUs which support these features (i.e., v6 and later), allowing full unaligned access support for C code in the decompressor. The decompressor C code must not be built to assume that unaligned access works if support for v5 or older platforms is included in the kernel. For correct code generation, C decompressor code must always use the get_unaligned and put_unaligned accessors when dealing with unaligned pointers, regardless of this patch. Signed-off-by: Dave Martin Acked-by: Nicolas Pitre Signed-off-by: Russell King diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index 90275f0..49ca86e 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -652,6 +652,15 @@ __setup_mmu: sub r3, r4, #16384 @ Page directory size mov pc, lr ENDPROC(__setup_mmu) +@ Enable unaligned access on v6, to allow better code generation +@ for the decompressor C code: +__armv6_mmu_cache_on: + mrc p15, 0, r0, c1, c0, 0 @ read SCTLR + bic r0, r0, #2 @ A (no unaligned access fault) + orr r0, r0, #1 << 22 @ U (v6 unaligned access model) + mcr p15, 0, r0, c1, c0, 0 @ write SCTLR + b __armv4_mmu_cache_on + __arm926ejs_mmu_cache_on: #ifdef CONFIG_CPU_DCACHE_WRITETHROUGH mov r0, #4 @ put dcache in WT mode @@ -694,6 +703,9 @@ __armv7_mmu_cache_on: bic r0, r0, #1 << 28 @ clear SCTLR.TRE orr r0, r0, #0x5000 @ I-cache enable, RR cache replacement orr r0, r0, #0x003c @ write buffer + bic r0, r0, #2 @ A (no unaligned access fault) + orr r0, r0, #1 << 22 @ U (v6 unaligned access model) + @ (needed for ARM1176) #ifdef CONFIG_MMU #ifdef CONFIG_CPU_ENDIAN_BE8 orr r0, r0, #1 << 25 @ big-endian page tables @@ -914,7 +926,7 @@ proc_types: .word 0x0007b000 @ ARMv6 .word 0x000ff000 - W(b) __armv4_mmu_cache_on + W(b) __armv6_mmu_cache_on W(b) __armv4_mmu_cache_off W(b) __armv6_mmu_cache_flush -- cgit v0.10.2 From eac7cc52c6b410e542af431b2ee93f3d7dbfb6af Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Tue, 6 Nov 2012 11:47:13 +0100 Subject: floppy: destroy floppy workqueue before cleaning up the queue We need to first destroy the floppy_wq workqueue before cleaning up the queue. Otherwise we might race with still pending work with the workqueue, but all the block queue already gone. This might lead to various oopses, such as CPU 0 Pid: 6, comm: kworker/u:0 Not tainted 3.7.0-rc4 #1 Bochs Bochs RIP: 0010:[] [] blk_peek_request+0xd5/0x1c0 RSP: 0000:ffff88000dc7dd88 EFLAGS: 00010092 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88000f602688 RSI: ffffffff81fd95d8 RDI: 6b6b6b6b6b6b6b6b RBP: ffff88000dc7dd98 R08: ffffffff81fd95c8 R09: 0000000000000000 R10: ffffffff81fd9480 R11: 0000000000000001 R12: 6b6b6b6b6b6b6b6b R13: ffff88000dc7dfd8 R14: ffff88000dc7dfd8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffffffff81e21000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000000 CR3: 0000000001e11000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process kworker/u:0 (pid: 6, threadinfo ffff88000dc7c000, task ffff88000dc5ecc0) Stack: 0000000000000000 0000000000000000 ffff88000dc7ddb8 ffffffff8134efee ffff88000dc7ddb8 0000000000000000 ffff88000dc7dde8 ffffffff814aef3c ffffffff81e75d80 ffff88000dc0c640 ffff88000fbfb000 ffffffff814aed90 Call Trace: [] blk_fetch_request+0xe/0x30 [] redo_fd_request+0x1ac/0x400 [] ? start_motor+0x130/0x130 [] process_one_work+0x136/0x450 [] ? manage_workers+0x205/0x2e0 [] worker_thread+0x14d/0x420 [] ? rescuer_thread+0x1a0/0x1a0 [] kthread+0xba/0xc0 [] ? __kthread_parkme+0x80/0x80 [] ret_from_fork+0x7a/0xb0 [] ? __kthread_parkme+0x80/0x80 Code: 0f 84 c0 00 00 00 83 f8 01 0f 85 e2 00 00 00 81 4b 40 00 00 80 00 48 89 df e8 58 f8 ff ff be fb ff ff ff fe ff ff <49> 8b 1c 24 49 39 dc 0f 85 2e ff ff ff 41 0f b6 84 24 28 04 00 RIP [] blk_peek_request+0xd5/0x1c0 RSP Reported-by: Fengguang Wu Tested-by: Fengguang Wu Signed-off-by: Jiri Kosina Signed-off-by: Jens Axboe diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 1c49d71..2ddd64a 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4330,6 +4330,7 @@ out_unreg_region: out_unreg_blkdev: unregister_blkdev(FLOPPY_MAJOR, "fd"); out_put_disk: + destroy_workqueue(floppy_wq); for (drive = 0; drive < N_DRIVE; drive++) { if (!disks[drive]) break; @@ -4340,7 +4341,6 @@ out_put_disk: } put_disk(disks[drive]); } - destroy_workqueue(floppy_wq); return err; } @@ -4555,6 +4555,8 @@ static void __exit floppy_module_exit(void) unregister_blkdev(FLOPPY_MAJOR, "fd"); platform_driver_unregister(&floppy_driver); + destroy_workqueue(floppy_wq); + for (drive = 0; drive < N_DRIVE; drive++) { del_timer_sync(&motor_off_timer[drive]); @@ -4578,7 +4580,6 @@ static void __exit floppy_module_exit(void) cancel_delayed_work_sync(&fd_timeout); cancel_delayed_work_sync(&fd_timer); - destroy_workqueue(floppy_wq); if (atomic_read(&usage_count)) floppy_release_irq_and_dma(); -- cgit v0.10.2 From a8c32a5c98943d370ea606a2e7dc04717eb92206 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 6 Nov 2012 12:24:26 +0100 Subject: dm: fix deadlock with request based dm and queue request_fn recursion Request based dm attempts to re-run the request queue off the request completion path. If used with a driver that potentially does end_io from its request_fn, we could deadlock trying to recurse back into request dispatch. Fix this by punting the request queue run to kblockd. Tested to fix a quickly reproducible deadlock in such a scenario. Cc: stable@kernel.org Acked-by: Alasdair G Kergon Signed-off-by: Jens Axboe diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 02db918..77e6eff 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -740,8 +740,14 @@ static void rq_completed(struct mapped_device *md, int rw, int run_queue) if (!md_in_flight(md)) wake_up(&md->wait); + /* + * Run this off this callpath, as drivers could invoke end_io while + * inside their request_fn (and holding the queue lock). Calling + * back into ->request_fn() could deadlock attempting to grab the + * queue lock again. + */ if (run_queue) - blk_run_queue(md->queue); + blk_run_queue_async(md->queue); /* * dm_put() must be at the end of this function. See the comment above -- cgit v0.10.2 From 3208795e612406df04a32b46eb5ea5fccfa51d69 Mon Sep 17 00:00:00 2001 From: Selvan Mani Date: Wed, 7 Nov 2012 06:03:37 -0700 Subject: mtip32xx: fix potential crash on SEC_ERASE_UNIT The mtip driver lifted this code from elsewhere and then added a special handling check for SEC_ERASE_UNIT. If the caller tries to do a security erase but passes no output data for the command then outbuf is not allocated and the driver duly explodes. Reported-by: Dan Carpenter Signed-off-by: Alan Cox Signed-off-by: Selvan Mani Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index adc6f36..dfb7196 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -2218,8 +2218,8 @@ static int exec_drive_taskfile(struct driver_data *dd, fis.device); /* check for erase mode support during secure erase.*/ - if ((fis.command == ATA_CMD_SEC_ERASE_UNIT) - && (outbuf[0] & MTIP_SEC_ERASE_MODE)) { + if ((fis.command == ATA_CMD_SEC_ERASE_UNIT) && outbuf && + (outbuf[0] & MTIP_SEC_ERASE_MODE)) { erasemode = 1; } -- cgit v0.10.2 From eda45314922f500f3547d36d317efc05ed823e3e Mon Sep 17 00:00:00 2001 From: Selvan Mani Date: Wed, 7 Nov 2012 06:03:53 -0700 Subject: mtip32xx: Fix to make lba address correct in big-endian systems Earlier lba address was assigned directly to lba_low and lba_low_ex, which would result in a different number (bytes reversed) in big-endian systems. Now assigning lba address byte-by-byte to fis. Reported-by: Dan Carpenter Signed-off-by: Selvan Mani Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index dfb7196..df46b5a 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -2465,8 +2465,12 @@ static void mtip_hw_submit_io(struct driver_data *dd, sector_t start, fis->opts = 1 << 7; fis->command = (dir == READ ? ATA_CMD_FPDMA_READ : ATA_CMD_FPDMA_WRITE); - *((unsigned int *) &fis->lba_low) = (start & 0xFFFFFF); - *((unsigned int *) &fis->lba_low_ex) = ((start >> 24) & 0xFFFFFF); + fis->lba_low = start & 0xFF; + fis->lba_mid = (start >> 8) & 0xFF; + fis->lba_hi = (start >> 16) & 0xFF; + fis->lba_low_ex = (start >> 24) & 0xFF; + fis->lba_mid_ex = (start >> 32) & 0xFF; + fis->lba_hi_ex = (start >> 40) & 0xFF; fis->device = 1 << 6; fis->features = nsect & 0xFF; fis->features_ex = (nsect >> 8) & 0xFF; -- cgit v0.10.2 From 4b9e884523f63f7bfd6fcbcdfe6f9f9545d98c13 Mon Sep 17 00:00:00 2001 From: Selvan Mani Date: Wed, 7 Nov 2012 06:03:56 -0700 Subject: mtip32xx: Fix incorrect mask used for erase mode Previous commit use value 3 for erasemode mask. Changing the mask to correct value to 2 Signed-off-by: Selvan Mani Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h index 5f4a917..8498e99 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -34,7 +34,7 @@ #define PCIE_CONFIG_EXT_DEVICE_CONTROL_OFFSET 0x48 /* check for erase mode support during secure erase */ -#define MTIP_SEC_ERASE_MODE 0x3 +#define MTIP_SEC_ERASE_MODE 0x2 /* # of times to retry timed out/failed IOs */ #define MTIP_MAX_RETRIES 2 -- cgit v0.10.2 From 7c5d62388e88729775b10a1748f2810e413f1e51 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Thu, 8 Nov 2012 07:58:53 +0100 Subject: mtip32xx: fix shift larger than type warning If we're building a 32-bit kernel and CONFIG_LBADF isn't set, sector_t is 32-bits wide. The shifts by 32 and 40 are thus larger than we support. Cast the sector offset to a u64 to avoid these warnings. Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index df46b5a..faa5591 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -2439,7 +2439,7 @@ static int mtip_hw_ioctl(struct driver_data *dd, unsigned int cmd, * return value * None */ -static void mtip_hw_submit_io(struct driver_data *dd, sector_t start, +static void mtip_hw_submit_io(struct driver_data *dd, sector_t sector, int nsect, int nents, int tag, void *callback, void *data, int dir) { @@ -2447,6 +2447,7 @@ static void mtip_hw_submit_io(struct driver_data *dd, sector_t start, struct mtip_port *port = dd->port; struct mtip_cmd *command = &port->commands[tag]; int dma_dir = (dir == READ) ? DMA_FROM_DEVICE : DMA_TO_DEVICE; + u64 start = sector; /* Map the scatter list for DMA access */ nents = dma_map_sg(&dd->pdev->dev, command->sg, nents, dma_dir); -- cgit v0.10.2 From 298d80152c895859bd128552db7a5b228e8a23f7 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Thu, 8 Nov 2012 17:35:38 +0800 Subject: mtip32xx: fix potential NULL pointer dereference in mtip_timeout_function() The dereference to port should be moved below the NULL test. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index faa5591..9694dd9 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -559,7 +559,7 @@ static void mtip_timeout_function(unsigned long int data) struct mtip_cmd *command; int tag, cmdto_cnt = 0; unsigned int bit, group; - unsigned int num_command_slots = port->dd->slot_groups * 32; + unsigned int num_command_slots; unsigned long to, tagaccum[SLOTBITS_IN_LONGS]; if (unlikely(!port)) @@ -572,6 +572,7 @@ static void mtip_timeout_function(unsigned long int data) } /* clear the tag accumulator */ memset(tagaccum, 0, SLOTBITS_IN_LONGS * sizeof(long)); + num_command_slots = port->dd->slot_groups * 32; for (tag = 0; tag < num_command_slots; tag++) { /* -- cgit v0.10.2 From 11cfb6ff736dc89b0447b8902d6912692303f6af Mon Sep 17 00:00:00 2001 From: Ed Cashin Date: Thu, 8 Nov 2012 19:17:15 -0500 Subject: aoe: avoid running request handler on plugged queue Calling the request handler directly on a plugged queue defeats the performance improvements provided by the plugging mechanism. Use the __blk_run_queue function instead of calling the request handler directly, so that we don't interfere with the block layer's ability to plug the queue. Signed-off-by: Ed Cashin Signed-off-by: Jens Axboe diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c index 3804a0a..9fe4f18 100644 --- a/drivers/block/aoe/aoecmd.c +++ b/drivers/block/aoe/aoecmd.c @@ -935,7 +935,7 @@ aoe_end_request(struct aoedev *d, struct request *rq, int fastfail) /* cf. http://lkml.org/lkml/2006/10/31/28 */ if (!fastfail) - q->request_fn(q); + __blk_run_queue(q); } static void -- cgit v0.10.2 From 836413e8c78ecbc55aa31f3cb600f8ee1aa355a2 Mon Sep 17 00:00:00 2001 From: Selvan Mani Date: Wed, 14 Nov 2012 06:16:35 -0700 Subject: mtip32xx: Fix padding issue Hi Jens, Another tiny patch. Removed __packed before the struct smart_attr and added __packed at end of the structure to fix padding issue. Signed-off-by: Selvan Mani Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h index 8498e99..b174264 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -155,14 +155,14 @@ enum { MTIP_DDF_REBUILD_FAILED_BIT = 8, }; -__packed struct smart_attr{ +struct smart_attr { u8 attr_id; u16 flags; u8 cur; u8 worst; u32 data; u8 res[3]; -}; +} __packed; /* Register Frame Information Structure (FIS), host to device. */ struct host_to_dev_fis { -- cgit v0.10.2 From 893d290f1d7496db97c9471bc352ad4a11dc8a25 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Thu, 22 Nov 2012 02:00:11 -0800 Subject: block: Don't access request after it might be freed After we've done __elv_add_request() and __blk_run_queue() in blk_execute_rq_nowait(), the request might finish and be freed immediately. Therefore checking if the type is REQ_TYPE_PM_RESUME isn't safe afterwards, because if it isn't, rq might be gone. Instead, check beforehand and stash the result in a temporary. This fixes crashes in blk_execute_rq_nowait() I get occasionally when running with lots of memory debugging options enabled -- I think this race is usually harmless because the window for rq to be reallocated is so small. Signed-off-by: Roland Dreier Cc: stable@kernel.org Signed-off-by: Jens Axboe diff --git a/block/blk-exec.c b/block/blk-exec.c index 8b6dc5b..f71eac3 100644 --- a/block/blk-exec.c +++ b/block/blk-exec.c @@ -52,11 +52,17 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk, rq_end_io_fn *done) { int where = at_head ? ELEVATOR_INSERT_FRONT : ELEVATOR_INSERT_BACK; + bool is_pm_resume; WARN_ON(irqs_disabled()); rq->rq_disk = bd_disk; rq->end_io = done; + /* + * need to check this before __blk_run_queue(), because rq can + * be freed before that returns. + */ + is_pm_resume = rq->cmd_type == REQ_TYPE_PM_RESUME; spin_lock_irq(q->queue_lock); @@ -71,7 +77,7 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk, __elv_add_request(q, rq, where); __blk_run_queue(q); /* the queue is stopped so it won't be run */ - if (rq->cmd_type == REQ_TYPE_PM_RESUME) + if (is_pm_resume) q->request_fn(q); spin_unlock_irq(q->queue_lock); } -- cgit v0.10.2 From 25389bb207987b5774182f763b9fb65ff08761c8 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Fri, 23 Nov 2012 14:03:04 +0100 Subject: jbd: Fix lock ordering bug in journal_unmap_buffer() Commit 09e05d48 introduced a wait for transaction commit into journal_unmap_buffer() in the case we are truncating a buffer undergoing commit in the page stradding i_size on a filesystem with blocksize < pagesize. Sadly we forgot to drop buffer lock before waiting for transaction commit and thus deadlock is possible when kjournald wants to lock the buffer. Fix the problem by dropping the buffer lock before waiting for transaction commit. Since we are still holding page lock (and that is OK), buffer cannot disappear under us. CC: stable@vger.kernel.org # Wherever commit 09e05d48 was taken Signed-off-by: Jan Kara diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c index 78b7f84..7f5120b 100644 --- a/fs/jbd/transaction.c +++ b/fs/jbd/transaction.c @@ -1961,7 +1961,9 @@ retry: spin_unlock(&journal->j_list_lock); jbd_unlock_bh_state(bh); spin_unlock(&journal->j_state_lock); + unlock_buffer(bh); log_wait_commit(journal, tid); + lock_buffer(bh); goto retry; } /* -- cgit v0.10.2 From 0ec7ec75f674dbf48010081383263771f2611e72 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 15 Nov 2012 12:53:59 +0100 Subject: MIPS: Merge overlapping bootmem ranges Without this, we may end up with something like this in /proc/iomem: 01100000-014fffff : System RAM 01100000-013bf48f : Kernel code 013bf490-0149e01f : Kernel data 01500000-0c0fffff : System RAM but the two System RAM ranges should be one single range. This particular case will result in kexec failure on Octeon systems if the kernel being loaded by kexec is bigger than the already running kernel. Signed-off-by: Ralf Baechle diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index a53f8ec..290dc6a 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -79,7 +79,7 @@ static struct resource data_resource = { .name = "Kernel data", }; void __init add_memory_region(phys_t start, phys_t size, long type) { int x = boot_mem_map.nr_map; - struct boot_mem_map_entry *prev = boot_mem_map.map + x - 1; + int i; /* Sanity check */ if (start + size < start) { @@ -88,15 +88,29 @@ void __init add_memory_region(phys_t start, phys_t size, long type) } /* - * Try to merge with previous entry if any. This is far less than - * perfect but is sufficient for most real world cases. + * Try to merge with existing entry, if any. */ - if (x && prev->addr + prev->size == start && prev->type == type) { - prev->size += size; + for (i = 0; i < boot_mem_map.nr_map; i++) { + struct boot_mem_map_entry *entry = boot_mem_map.map + i; + unsigned long top; + + if (entry->type != type) + continue; + + if (start + size < entry->addr) + continue; /* no overlap */ + + if (entry->addr + entry->size < start) + continue; /* no overlap */ + + top = max(entry->addr + entry->size, start + size); + entry->addr = min(entry->addr, start); + entry->size = top - entry->addr; + return; } - if (x == BOOT_MEM_MAP_MAX) { + if (boot_mem_map.nr_map == BOOT_MEM_MAP_MAX) { pr_err("Ooops! Too many entries in the memory map!\n"); return; } -- cgit v0.10.2 From f93a1a00f2bd550f86fd1a9f83c493755aecd15f Mon Sep 17 00:00:00 2001 From: Al Cooper Date: Thu, 15 Nov 2012 18:16:14 -0500 Subject: MIPS: Fix crash that occurs when function tracing is enabled A recent patch changed some irq routines from inlines to functions. These routines are called by the tracer code. Now that they're functions, if they are compiled for function tracing they will call the tracer and crash the system due to infinite recursion. The fix disables tracing in these functions by using "notrace" in the function definition. Signed-off-by: Al Cooper Reviewed-by: David Daney Pathchwork: https://patchwork.linux-mips.org/patch/4564/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/lib/mips-atomic.c b/arch/mips/lib/mips-atomic.c index e091430..cd160be 100644 --- a/arch/mips/lib/mips-atomic.c +++ b/arch/mips/lib/mips-atomic.c @@ -56,7 +56,7 @@ __asm__( " .set pop \n" " .endm \n"); -void arch_local_irq_disable(void) +notrace void arch_local_irq_disable(void) { preempt_disable(); __asm__ __volatile__( @@ -93,7 +93,7 @@ __asm__( " .set pop \n" " .endm \n"); -unsigned long arch_local_irq_save(void) +notrace unsigned long arch_local_irq_save(void) { unsigned long flags; preempt_disable(); @@ -135,7 +135,7 @@ __asm__( " .set pop \n" " .endm \n"); -void arch_local_irq_restore(unsigned long flags) +notrace void arch_local_irq_restore(unsigned long flags) { unsigned long __tmp1; @@ -159,7 +159,7 @@ void arch_local_irq_restore(unsigned long flags) EXPORT_SYMBOL(arch_local_irq_restore); -void __arch_local_irq_restore(unsigned long flags) +notrace void __arch_local_irq_restore(unsigned long flags) { unsigned long __tmp1; -- cgit v0.10.2 From a3cea9894157c20a5b1ec08b7e0b5f2019740c10 Mon Sep 17 00:00:00 2001 From: Manuel Lauss Date: Thu, 22 Nov 2012 11:58:22 +0100 Subject: MPI: Fix compilation on MIPS with GCC 4.4 and newer Since 4.4 GCC on MIPS no longer recognizes the "h" constraint, leading to this build failure: CC lib/mpi/generic_mpih-mul1.o lib/mpi/generic_mpih-mul1.c: In function 'mpihelp_mul_1': lib/mpi/generic_mpih-mul1.c:50:3: error: impossible constraint in 'asm' This patch updates MPI with the latest umul_ppm implementations for MIPS. Signed-off-by: Manuel Lauss Cc: Linux-MIPS Cc: Dmitry Kasatkin Cc: James Morris Patchwork: https://patchwork.linux-mips.org/patch/4612/ Signed-off-by: Ralf Baechle diff --git a/lib/mpi/longlong.h b/lib/mpi/longlong.h index 678ce4f..095ab15 100644 --- a/lib/mpi/longlong.h +++ b/lib/mpi/longlong.h @@ -641,7 +641,14 @@ do { \ ************** MIPS ***************** ***************************************/ #if defined(__mips__) && W_TYPE_SIZE == 32 -#if __GNUC__ > 2 || __GNUC_MINOR__ >= 7 +#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 4 +#define umul_ppmm(w1, w0, u, v) \ +do { \ + UDItype __ll = (UDItype)(u) * (v); \ + w1 = __ll >> 32; \ + w0 = __ll; \ +} while (0) +#elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7 #define umul_ppmm(w1, w0, u, v) \ __asm__ ("multu %2,%3" \ : "=l" ((USItype)(w0)), \ @@ -666,7 +673,15 @@ do { \ ************** MIPS/64 ************** ***************************************/ #if (defined(__mips) && __mips >= 3) && W_TYPE_SIZE == 64 -#if __GNUC__ > 2 || __GNUC_MINOR__ >= 7 +#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 4 +#define umul_ppmm(w1, w0, u, v) \ +do { \ + typedef unsigned int __ll_UTItype __attribute__((mode(TI))); \ + __ll_UTItype __ll = (__ll_UTItype)(u) * (v); \ + w1 = __ll >> 64; \ + w0 = __ll; \ +} while (0) +#elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7 #define umul_ppmm(w1, w0, u, v) \ __asm__ ("dmultu %2,%3" \ : "=l" ((UDItype)(w0)), \ -- cgit v0.10.2 From b26623dab7eeb1e9f5898c7a49458789dd492f20 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?fran=C3=A7ois=20romieu?= Date: Wed, 21 Nov 2012 10:07:29 +0000 Subject: 8139cp: revert "set ring address before enabling receiver" This patch reverts b01af4579ec41f48e9b9c774e70bd6474ad210db. The original patch was tested with emulated hardware. Real hardware chokes. Fixes https://bugzilla.kernel.org/show_bug.cgi?id=47041 Signed-off-by: Francois Romieu Acked-by: Jeff Garzik Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c index 1c81825..b01f83a 100644 --- a/drivers/net/ethernet/realtek/8139cp.c +++ b/drivers/net/ethernet/realtek/8139cp.c @@ -979,17 +979,6 @@ static void cp_init_hw (struct cp_private *cp) cpw32_f (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0))); cpw32_f (MAC0 + 4, le32_to_cpu (*(__le32 *) (dev->dev_addr + 4))); - cpw32_f(HiTxRingAddr, 0); - cpw32_f(HiTxRingAddr + 4, 0); - - ring_dma = cp->ring_dma; - cpw32_f(RxRingAddr, ring_dma & 0xffffffff); - cpw32_f(RxRingAddr + 4, (ring_dma >> 16) >> 16); - - ring_dma += sizeof(struct cp_desc) * CP_RX_RING_SIZE; - cpw32_f(TxRingAddr, ring_dma & 0xffffffff); - cpw32_f(TxRingAddr + 4, (ring_dma >> 16) >> 16); - cp_start_hw(cp); cpw8(TxThresh, 0x06); /* XXX convert magic num to a constant */ @@ -1003,6 +992,17 @@ static void cp_init_hw (struct cp_private *cp) cpw8(Config5, cpr8(Config5) & PMEStatus); + cpw32_f(HiTxRingAddr, 0); + cpw32_f(HiTxRingAddr + 4, 0); + + ring_dma = cp->ring_dma; + cpw32_f(RxRingAddr, ring_dma & 0xffffffff); + cpw32_f(RxRingAddr + 4, (ring_dma >> 16) >> 16); + + ring_dma += sizeof(struct cp_desc) * CP_RX_RING_SIZE; + cpw32_f(TxRingAddr, ring_dma & 0xffffffff); + cpw32_f(TxRingAddr + 4, (ring_dma >> 16) >> 16); + cpw16(MultiIntr, 0); cpw8_f(Cfg9346, Cfg9346_Lock); -- cgit v0.10.2 From cc9b310165e7ea2f3dc90e1eea6ce57c9b7981d1 Mon Sep 17 00:00:00 2001 From: Zhi Yong Wu Date: Thu, 22 Nov 2012 00:10:01 +0000 Subject: vxlan: fix command usage in its doc Some commands don't work in its example doc. The patch will fix it. Signed-off-by: Zhi Yong Wu Signed-off-by: David S. Miller diff --git a/Documentation/networking/vxlan.txt b/Documentation/networking/vxlan.txt index 5b34b76..6d99351 100644 --- a/Documentation/networking/vxlan.txt +++ b/Documentation/networking/vxlan.txt @@ -32,7 +32,7 @@ no entry is in the forwarding table. # ip link delete vxlan0 3. Show vxlan info - # ip -d show vxlan0 + # ip -d link show vxlan0 It is possible to create, destroy and display the vxlan forwarding table using the new bridge command. @@ -41,7 +41,7 @@ forwarding table using the new bridge command. # bridge fdb add to 00:17:42:8a:b4:05 dst 192.19.0.2 dev vxlan0 2. Delete forwarding table entry - # bridge fdb delete 00:17:42:8a:b4:05 + # bridge fdb delete 00:17:42:8a:b4:05 dev vxlan0 3. Show forwarding table # bridge fdb show dev vxlan0 -- cgit v0.10.2 From 4a25417c20fac00b3afd58ce27408f964d19e708 Mon Sep 17 00:00:00 2001 From: Ariel Elior Date: Thu, 22 Nov 2012 07:16:17 +0000 Subject: bnx2x: remove redundant warning log fix bug where a register which was only meant to be read in 578xx/57712 devices causes a bogus error message to be logged when read from other devices. Signed-off-by: Ariel Elior Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index bd1fd3d..01611b3 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -9545,10 +9545,13 @@ static int __devinit bnx2x_prev_unload_common(struct bnx2x *bp) */ static void __devinit bnx2x_prev_interrupted_dmae(struct bnx2x *bp) { - u32 val = REG_RD(bp, PGLUE_B_REG_PGLUE_B_INT_STS); - if (val & PGLUE_B_PGLUE_B_INT_STS_REG_WAS_ERROR_ATTN) { - BNX2X_ERR("was error bit was found to be set in pglueb upon startup. Clearing"); - REG_WR(bp, PGLUE_B_REG_WAS_ERROR_PF_7_0_CLR, 1 << BP_FUNC(bp)); + if (!CHIP_IS_E1x(bp)) { + u32 val = REG_RD(bp, PGLUE_B_REG_PGLUE_B_INT_STS); + if (val & PGLUE_B_PGLUE_B_INT_STS_REG_WAS_ERROR_ATTN) { + BNX2X_ERR("was error bit was found to be set in pglueb upon startup. Clearing"); + REG_WR(bp, PGLUE_B_REG_WAS_ERROR_PF_7_0_CLR, + 1 << BP_FUNC(bp)); + } } } -- cgit v0.10.2 From a7227a0faa117d0bc532aea546ae5ac5f89e8ed7 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 23 Nov 2012 20:55:06 +0100 Subject: PM / QoS: fix wrong error-checking condition dev_pm_qos_add_request() can return 0, 1, or a negative error code, therefore the correct error test is "if (error < 0)." Checking just for non-zero return code leads to erroneous setting of the req->dev pointer to NULL, which then leads to a repeated call to dev_pm_qos_add_ancestor_request() in st1232_ts_irq_handler(). This in turn leads to an Oops, when the I2C host adapter is unloaded and reloaded again because of the inconsistent state of its QoS request list. Signed-off-by: Guennadi Liakhovetski Cc: Signed-off-by: Rafael J. Wysocki diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c index 74a67e0..fbbd4ed 100644 --- a/drivers/base/power/qos.c +++ b/drivers/base/power/qos.c @@ -451,7 +451,7 @@ int dev_pm_qos_add_ancestor_request(struct device *dev, if (ancestor) error = dev_pm_qos_add_request(ancestor, req, value); - if (error) + if (error < 0) req->dev = NULL; return error; -- cgit v0.10.2 From 0e622d39197f0b64b9e043fe75ac3634bf9f3a05 Mon Sep 17 00:00:00 2001 From: Andreas Larsson Date: Fri, 23 Nov 2012 12:24:09 +0100 Subject: of/address: sparc: Declare of_iomap as an extern function for sparc again This bug-fix makes sure that of_iomap is defined extern for sparc so that the sparc-specific implementation of_iomap is once again used when including include/linux/of_address.h in a sparc context. OF_GPIO that is now available for sparc relies on this. The bug was inadvertently introduced in a850a75, "of/address: add empty static inlines for !CONFIG_OF", that added a static dummy inline for of_iomap when !CONFIG_OF_ADDRESS. However, CONFIG_OF_ADDRESS is never defined for sparc, but there is a sparc-specific implementation /arch/sparc/kernel/of_device_common.c. This fix takes the same approach as 0bce04b that solved the equivalent problem for of_address_to_resource. Signed-off-by: Andreas Larsson Acked-by: David Miller Signed-off-by: Grant Likely diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h index f930031..67c6257 100644 --- a/arch/sparc/include/asm/prom.h +++ b/arch/sparc/include/asm/prom.h @@ -63,10 +63,13 @@ extern char *of_console_options; extern void irq_trans_init(struct device_node *dp); extern char *build_path_component(struct device_node *dp); -/* SPARC has a local implementation */ +/* SPARC has local implementations */ extern int of_address_to_resource(struct device_node *dev, int index, struct resource *r); #define of_address_to_resource of_address_to_resource +void __iomem *of_iomap(struct device_node *node, int index); +#define of_iomap of_iomap + #endif /* __KERNEL__ */ #endif /* _SPARC_PROM_H */ diff --git a/include/linux/of_address.h b/include/linux/of_address.h index e20e3af..0506eb5 100644 --- a/include/linux/of_address.h +++ b/include/linux/of_address.h @@ -42,10 +42,12 @@ static inline struct device_node *of_find_matching_node_by_address( { return NULL; } +#ifndef of_iomap static inline void __iomem *of_iomap(struct device_node *device, int index) { return NULL; } +#endif static inline const __be32 *of_get_address(struct device_node *dev, int index, u64 *size, unsigned int *flags) { -- cgit v0.10.2 From 3786063a3c0ba26a2400a04476c0c0ccfd3c6beb Mon Sep 17 00:00:00 2001 From: Xiao Guangrong Date: Thu, 15 Nov 2012 14:17:01 +0800 Subject: perf kvm: Rename perf_kvm to perf_kvm_stat Then let it only be used in 'perf kvm stat'. Preparatory patch to stop trying to build parts of this tool that for now are only supported on x86. Signed-off-by: Xiao Guangrong Cc: Borislav Petkov Cc: David Ahern Cc: David Howells Cc: Dong Hao Cc: Ingo Molnar Cc: Josh Boyer Cc: Linus Torvalds Cc: Namhyung Kim Cc: Paul Mackerras Cc: Runzhen Wang Cc: Thomas Gleixner Cc: linux-arch@vger.kernel.org Cc: x86@kernel.org Link: http://lkml.kernel.org/r/50A488DD.6090106@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index e013bdb..9fa45fa 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -58,7 +58,7 @@ struct kvm_event_key { }; -struct perf_kvm; +struct perf_kvm_stat; struct kvm_events_ops { bool (*is_begin_event)(struct perf_evsel *evsel, @@ -66,7 +66,7 @@ struct kvm_events_ops { struct event_key *key); bool (*is_end_event)(struct perf_evsel *evsel, struct perf_sample *sample, struct event_key *key); - void (*decode_key)(struct perf_kvm *kvm, struct event_key *key, + void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key, char decode[20]); const char *name; }; @@ -79,7 +79,7 @@ struct exit_reasons_table { #define EVENTS_BITS 12 #define EVENTS_CACHE_SIZE (1UL << EVENTS_BITS) -struct perf_kvm { +struct perf_kvm_stat { struct perf_tool tool; struct perf_session *session; @@ -146,7 +146,7 @@ static struct exit_reasons_table svm_exit_reasons[] = { SVM_EXIT_REASONS }; -static const char *get_exit_reason(struct perf_kvm *kvm, u64 exit_code) +static const char *get_exit_reason(struct perf_kvm_stat *kvm, u64 exit_code) { int i = kvm->exit_reasons_size; struct exit_reasons_table *tbl = kvm->exit_reasons; @@ -162,7 +162,7 @@ static const char *get_exit_reason(struct perf_kvm *kvm, u64 exit_code) return "UNKNOWN"; } -static void exit_event_decode_key(struct perf_kvm *kvm, +static void exit_event_decode_key(struct perf_kvm_stat *kvm, struct event_key *key, char decode[20]) { @@ -228,7 +228,7 @@ static bool mmio_event_end(struct perf_evsel *evsel, struct perf_sample *sample, return false; } -static void mmio_event_decode_key(struct perf_kvm *kvm __maybe_unused, +static void mmio_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused, struct event_key *key, char decode[20]) { @@ -271,7 +271,7 @@ static bool ioport_event_end(struct perf_evsel *evsel, return kvm_entry_event(evsel); } -static void ioport_event_decode_key(struct perf_kvm *kvm __maybe_unused, +static void ioport_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused, struct event_key *key, char decode[20]) { @@ -286,7 +286,7 @@ static struct kvm_events_ops ioport_events = { .name = "IO Port Access" }; -static bool register_kvm_events_ops(struct perf_kvm *kvm) +static bool register_kvm_events_ops(struct perf_kvm_stat *kvm) { bool ret = true; @@ -311,7 +311,7 @@ struct vcpu_event_record { }; -static void init_kvm_event_record(struct perf_kvm *kvm) +static void init_kvm_event_record(struct perf_kvm_stat *kvm) { int i; @@ -360,7 +360,7 @@ static struct kvm_event *kvm_alloc_init_event(struct event_key *key) return event; } -static struct kvm_event *find_create_kvm_event(struct perf_kvm *kvm, +static struct kvm_event *find_create_kvm_event(struct perf_kvm_stat *kvm, struct event_key *key) { struct kvm_event *event; @@ -381,7 +381,7 @@ static struct kvm_event *find_create_kvm_event(struct perf_kvm *kvm, return event; } -static bool handle_begin_event(struct perf_kvm *kvm, +static bool handle_begin_event(struct perf_kvm_stat *kvm, struct vcpu_event_record *vcpu_record, struct event_key *key, u64 timestamp) { @@ -425,7 +425,7 @@ static bool update_kvm_event(struct kvm_event *event, int vcpu_id, return true; } -static bool handle_end_event(struct perf_kvm *kvm, +static bool handle_end_event(struct perf_kvm_stat *kvm, struct vcpu_event_record *vcpu_record, struct event_key *key, u64 timestamp) @@ -486,7 +486,7 @@ struct vcpu_event_record *per_vcpu_record(struct thread *thread, return thread->priv; } -static bool handle_kvm_event(struct perf_kvm *kvm, +static bool handle_kvm_event(struct perf_kvm_stat *kvm, struct thread *thread, struct perf_evsel *evsel, struct perf_sample *sample) @@ -541,7 +541,7 @@ static struct kvm_event_key keys[] = { { NULL, NULL } }; -static bool select_key(struct perf_kvm *kvm) +static bool select_key(struct perf_kvm_stat *kvm) { int i; @@ -577,7 +577,8 @@ static void insert_to_result(struct rb_root *result, struct kvm_event *event, rb_insert_color(&event->rb, result); } -static void update_total_count(struct perf_kvm *kvm, struct kvm_event *event) +static void +update_total_count(struct perf_kvm_stat *kvm, struct kvm_event *event) { int vcpu = kvm->trace_vcpu; @@ -590,7 +591,7 @@ static bool event_is_valid(struct kvm_event *event, int vcpu) return !!get_event_count(event, vcpu); } -static void sort_result(struct perf_kvm *kvm) +static void sort_result(struct perf_kvm_stat *kvm) { unsigned int i; int vcpu = kvm->trace_vcpu; @@ -627,7 +628,7 @@ static void print_vcpu_info(int vcpu) pr_info("VCPU %d:\n\n", vcpu); } -static void print_result(struct perf_kvm *kvm) +static void print_result(struct perf_kvm_stat *kvm) { char decode[20]; struct kvm_event *event; @@ -670,7 +671,8 @@ static int process_sample_event(struct perf_tool *tool, struct machine *machine) { struct thread *thread = machine__findnew_thread(machine, sample->tid); - struct perf_kvm *kvm = container_of(tool, struct perf_kvm, tool); + struct perf_kvm_stat *kvm = container_of(tool, struct perf_kvm_stat, + tool); if (thread == NULL) { pr_debug("problem processing %d event, skipping it.\n", @@ -701,7 +703,7 @@ static int get_cpu_isa(struct perf_session *session) return isa; } -static int read_events(struct perf_kvm *kvm) +static int read_events(struct perf_kvm_stat *kvm) { int ret; @@ -750,7 +752,7 @@ static bool verify_vcpu(int vcpu) return true; } -static int kvm_events_report_vcpu(struct perf_kvm *kvm) +static int kvm_events_report_vcpu(struct perf_kvm_stat *kvm) { int ret = -EINVAL; int vcpu = kvm->trace_vcpu; @@ -798,7 +800,8 @@ static const char * const record_args[] = { _p; \ }) -static int kvm_events_record(struct perf_kvm *kvm, int argc, const char **argv) +static int +kvm_events_record(struct perf_kvm_stat *kvm, int argc, const char **argv) { unsigned int rec_argc, i, j; const char **rec_argv; @@ -821,7 +824,8 @@ static int kvm_events_record(struct perf_kvm *kvm, int argc, const char **argv) return cmd_record(i, rec_argv, NULL); } -static int kvm_events_report(struct perf_kvm *kvm, int argc, const char **argv) +static int +kvm_events_report(struct perf_kvm_stat *kvm, int argc, const char **argv) { const struct option kvm_events_report_options[] = { OPT_STRING(0, "event", &kvm->report_event, "report event", @@ -864,24 +868,36 @@ static void print_kvm_stat_usage(void) printf("\nOtherwise, it is the alias of 'perf stat':\n"); } -static int kvm_cmd_stat(struct perf_kvm *kvm, int argc, const char **argv) +static int kvm_cmd_stat(const char *file_name, int argc, const char **argv) { + struct perf_kvm_stat kvm = { + .file_name = file_name, + + .trace_vcpu = -1, + .report_event = "vmexit", + .sort_key = "sample", + + .exit_reasons = svm_exit_reasons, + .exit_reasons_size = ARRAY_SIZE(svm_exit_reasons), + .exit_reasons_isa = "SVM", + }; + if (argc == 1) { print_kvm_stat_usage(); goto perf_stat; } if (!strncmp(argv[1], "rec", 3)) - return kvm_events_record(kvm, argc - 1, argv + 1); + return kvm_events_record(&kvm, argc - 1, argv + 1); if (!strncmp(argv[1], "rep", 3)) - return kvm_events_report(kvm, argc - 1 , argv + 1); + return kvm_events_report(&kvm, argc - 1 , argv + 1); perf_stat: return cmd_stat(argc, argv, NULL); } -static int __cmd_record(struct perf_kvm *kvm, int argc, const char **argv) +static int __cmd_record(const char *file_name, int argc, const char **argv) { int rec_argc, i = 0, j; const char **rec_argv; @@ -890,7 +906,7 @@ static int __cmd_record(struct perf_kvm *kvm, int argc, const char **argv) rec_argv = calloc(rec_argc + 1, sizeof(char *)); rec_argv[i++] = strdup("record"); rec_argv[i++] = strdup("-o"); - rec_argv[i++] = strdup(kvm->file_name); + rec_argv[i++] = strdup(file_name); for (j = 1; j < argc; j++, i++) rec_argv[i] = argv[j]; @@ -899,7 +915,7 @@ static int __cmd_record(struct perf_kvm *kvm, int argc, const char **argv) return cmd_record(i, rec_argv, NULL); } -static int __cmd_report(struct perf_kvm *kvm, int argc, const char **argv) +static int __cmd_report(const char *file_name, int argc, const char **argv) { int rec_argc, i = 0, j; const char **rec_argv; @@ -908,7 +924,7 @@ static int __cmd_report(struct perf_kvm *kvm, int argc, const char **argv) rec_argv = calloc(rec_argc + 1, sizeof(char *)); rec_argv[i++] = strdup("report"); rec_argv[i++] = strdup("-i"); - rec_argv[i++] = strdup(kvm->file_name); + rec_argv[i++] = strdup(file_name); for (j = 1; j < argc; j++, i++) rec_argv[i] = argv[j]; @@ -917,7 +933,8 @@ static int __cmd_report(struct perf_kvm *kvm, int argc, const char **argv) return cmd_report(i, rec_argv, NULL); } -static int __cmd_buildid_list(struct perf_kvm *kvm, int argc, const char **argv) +static int +__cmd_buildid_list(const char *file_name, int argc, const char **argv) { int rec_argc, i = 0, j; const char **rec_argv; @@ -926,7 +943,7 @@ static int __cmd_buildid_list(struct perf_kvm *kvm, int argc, const char **argv) rec_argv = calloc(rec_argc + 1, sizeof(char *)); rec_argv[i++] = strdup("buildid-list"); rec_argv[i++] = strdup("-i"); - rec_argv[i++] = strdup(kvm->file_name); + rec_argv[i++] = strdup(file_name); for (j = 1; j < argc; j++, i++) rec_argv[i] = argv[j]; @@ -937,20 +954,12 @@ static int __cmd_buildid_list(struct perf_kvm *kvm, int argc, const char **argv) int cmd_kvm(int argc, const char **argv, const char *prefix __maybe_unused) { - struct perf_kvm kvm = { - .trace_vcpu = -1, - .report_event = "vmexit", - .sort_key = "sample", - - .exit_reasons = svm_exit_reasons, - .exit_reasons_size = ARRAY_SIZE(svm_exit_reasons), - .exit_reasons_isa = "SVM", - }; + const char *file_name; const struct option kvm_options[] = { - OPT_STRING('i', "input", &kvm.file_name, "file", + OPT_STRING('i', "input", &file_name, "file", "Input file name"), - OPT_STRING('o', "output", &kvm.file_name, "file", + OPT_STRING('o', "output", &file_name, "file", "Output file name"), OPT_BOOLEAN(0, "guest", &perf_guest, "Collect guest os data"), @@ -985,32 +994,32 @@ int cmd_kvm(int argc, const char **argv, const char *prefix __maybe_unused) if (!perf_host) perf_guest = 1; - if (!kvm.file_name) { + if (!file_name) { if (perf_host && !perf_guest) - kvm.file_name = strdup("perf.data.host"); + file_name = strdup("perf.data.host"); else if (!perf_host && perf_guest) - kvm.file_name = strdup("perf.data.guest"); + file_name = strdup("perf.data.guest"); else - kvm.file_name = strdup("perf.data.kvm"); + file_name = strdup("perf.data.kvm"); - if (!kvm.file_name) { + if (!file_name) { pr_err("Failed to allocate memory for filename\n"); return -ENOMEM; } } if (!strncmp(argv[0], "rec", 3)) - return __cmd_record(&kvm, argc, argv); + return __cmd_record(file_name, argc, argv); else if (!strncmp(argv[0], "rep", 3)) - return __cmd_report(&kvm, argc, argv); + return __cmd_report(file_name, argc, argv); else if (!strncmp(argv[0], "diff", 4)) return cmd_diff(argc, argv, NULL); else if (!strncmp(argv[0], "top", 3)) return cmd_top(argc, argv, NULL); else if (!strncmp(argv[0], "buildid-list", 12)) - return __cmd_buildid_list(&kvm, argc, argv); + return __cmd_buildid_list(file_name, argc, argv); else if (!strncmp(argv[0], "stat", 4)) - return kvm_cmd_stat(&kvm, argc, argv); + return kvm_cmd_stat(file_name, argc, argv); else usage_with_options(kvm_usage, kvm_options); -- cgit v0.10.2 From 7321090f6751c9987c26a8c81c63680d16a614d7 Mon Sep 17 00:00:00 2001 From: Xiao Guangrong Date: Mon, 19 Nov 2012 16:19:21 +0800 Subject: perf kvm: Fix building perf kvm on non x86 arches Now, 'perf kvm stat' is only supported on x86, let its code depend on (__x86_64__ || __i386__) to fix building it on other architectures. Reviewed-by: David Howells Signed-off-by: Xiao Guangrong Cc: Borislav Petkov Cc: David Ahern Cc: David Howells Cc: Dong Hao Cc: Ingo Molnar Cc: Josh Boyer Cc: Linus Torvalds Cc: Namhyung Kim Cc: Paul Mackerras Cc: Runzhen Wang Cc: Thomas Gleixner Cc: linux-arch@vger.kernel.org Cc: x86@kernel.org Link: http://lkml.kernel.org/r/50A9EB89.70901@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index 9fa45fa..283b439 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -22,6 +22,7 @@ #include #include +#if defined(__i386__) || defined(__x86_64__) #include #include #include @@ -896,6 +897,7 @@ static int kvm_cmd_stat(const char *file_name, int argc, const char **argv) perf_stat: return cmd_stat(argc, argv, NULL); } +#endif static int __cmd_record(const char *file_name, int argc, const char **argv) { @@ -1018,8 +1020,10 @@ int cmd_kvm(int argc, const char **argv, const char *prefix __maybe_unused) return cmd_top(argc, argv, NULL); else if (!strncmp(argv[0], "buildid-list", 12)) return __cmd_buildid_list(file_name, argc, argv); +#if defined(__i386__) || defined(__x86_64__) else if (!strncmp(argv[0], "stat", 4)) return kvm_cmd_stat(file_name, argc, argv); +#endif else usage_with_options(kvm_usage, kvm_options); -- cgit v0.10.2 From d846b17475d52f037437d125cd19c28f1d36e4f0 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Sat, 24 Nov 2012 11:58:24 +0100 Subject: ALSA: hda - Fix build without CONFIG_PM I forgot this again... codec->in_pm is in #ifdef CONFIG_PM Reported-by: Markus Trippelsdorf Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index cebe2dfd..d010de1 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -95,6 +95,7 @@ int snd_hda_delete_codec_preset(struct hda_codec_preset_list *preset) EXPORT_SYMBOL_HDA(snd_hda_delete_codec_preset); #ifdef CONFIG_PM +#define codec_in_pm(codec) ((codec)->in_pm) static void hda_power_work(struct work_struct *work); static void hda_keep_power_on(struct hda_codec *codec); #define hda_codec_is_power_on(codec) ((codec)->power_on) @@ -104,6 +105,7 @@ static inline void hda_call_pm_notify(struct hda_bus *bus, bool power_up) bus->ops.pm_notify(bus, power_up); } #else +#define codec_in_pm(codec) 0 static inline void hda_keep_power_on(struct hda_codec *codec) {} #define hda_codec_is_power_on(codec) 1 #define hda_call_pm_notify(bus, state) {} @@ -228,7 +230,7 @@ static int codec_exec_verb(struct hda_codec *codec, unsigned int cmd, } mutex_unlock(&bus->cmd_mutex); snd_hda_power_down(codec); - if (!codec->in_pm && res && *res == -1 && bus->rirb_error) { + if (!codec_in_pm(codec) && res && *res == -1 && bus->rirb_error) { if (bus->response_reset) { snd_printd("hda_codec: resetting BUS due to " "fatal communication error\n"); @@ -238,7 +240,7 @@ static int codec_exec_verb(struct hda_codec *codec, unsigned int cmd, goto again; } /* clear reset-flag when the communication gets recovered */ - if (!err || codec->in_pm) + if (!err || codec_in_pm(codec)) bus->response_reset = 0; return err; } -- cgit v0.10.2 From 4a6dd664eba59488c9e56b51a594396d7706eb08 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Thu, 22 Nov 2012 01:32:45 +0000 Subject: netfilter: ipset: fix netiface set name overflow attribute is copied to IFNAMSIZ-size stack variable, but IFNAMSIZ is smaller than IPSET_MAXNAMELEN. Fortunately nfnetlink needs CAP_NET_ADMIN. Signed-off-by: Florian Westphal Acked-by: Jozsef Kadlecsik Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/ipset/ip_set_hash_netiface.c b/net/netfilter/ipset/ip_set_hash_netiface.c index b9a6338..45a1014 100644 --- a/net/netfilter/ipset/ip_set_hash_netiface.c +++ b/net/netfilter/ipset/ip_set_hash_netiface.c @@ -793,7 +793,7 @@ static struct ip_set_type hash_netiface_type __read_mostly = { [IPSET_ATTR_IP] = { .type = NLA_NESTED }, [IPSET_ATTR_IP_TO] = { .type = NLA_NESTED }, [IPSET_ATTR_IFACE] = { .type = NLA_NUL_STRING, - .len = IPSET_MAXNAMELEN - 1 }, + .len = IFNAMSIZ - 1 }, [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, [IPSET_ATTR_CIDR] = { .type = NLA_U8 }, [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, -- cgit v0.10.2 From 6567d748c4e94e3481e523803ec07ebd825c80d6 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sat, 10 Nov 2012 10:00:06 +0000 Subject: Revert "drm/i915: enable rc6 on ilk again" Even with the cumulative set of ilk w/a, rc6 is demonstrably still failing and causing GPU hangs as found by Peter Wu. So we need to disable it again until it is stable. This reverts commit 456470eb583f063ee84c6818251e638598be0fb8 Author: Daniel Vetter Date: Wed Aug 8 23:35:40 2012 +0200 drm/i915: enable rc6 on ilk again and the follow-on commit cd7988eea561a70a4f98e431c1395f913672d626 Author: Daniel Vetter Date: Sun Aug 26 20:33:18 2012 +0200 drm/i915: disable rc6 on ilk when vt-d is enabled Note: The situation around the gen4/5 gpu hangs that cropped up in 3.7 is rather strange. Most useful bisects have lead to commit 6c085a728cf000ac1865d66f8c9b52935558b328 Author: Chris Wilson Date: Mon Aug 20 11:40:46 2012 +0200 drm/i915: Track unbound pages or even later commits that affect the gem bo recycling, which all is way past the point where we re-enabled rc6. But somehow reverting/disabling those commits doesn't help, but disabling rc6 at least helps for many hangs on ilk. Obviously it doesn't change anything at all on gen4, and there are still strange issues left on gen5 (which we unfortunately can't readily reproduce). Also, the error_state signature of the hangs which can be fixed with this patch look remarkably different to those which seem to be unaffected by the rc6 settings: The rc6 hangs are in the ring, somewhere in the MI_FLUSH/PIPE_CONTROL sequence to make ilk coherent, wheras all the other hangs tend to be at a random point in the middle of the user batch. So it could also be that we have different issues. Until we grow more clue, this at least helps some users. Reported-by: Peter Wu References: https://bugs.freedesktop.org/show_bug.cgi?id=55984 Signed-off-by: Chris Wilson [danvet: Added note with some more details about the gen4/5 3.7 gpu hang regression.] Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 72f41aa..442968f 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -2373,15 +2373,9 @@ int intel_enable_rc6(const struct drm_device *dev) if (i915_enable_rc6 >= 0) return i915_enable_rc6; - if (INTEL_INFO(dev)->gen == 5) { -#ifdef CONFIG_INTEL_IOMMU - /* Disable rc6 on ilk if VT-d is on. */ - if (intel_iommu_gfx_mapped) - return false; -#endif - DRM_DEBUG_DRIVER("Ironlake: only RC6 available\n"); - return INTEL_RC6_ENABLE; - } + /* Disable RC6 on Ironlake */ + if (INTEL_INFO(dev)->gen == 5) + return 0; if (IS_HASWELL(dev)) { DRM_DEBUG_DRIVER("Haswell: only RC6 available\n"); -- cgit v0.10.2 From e716e014384688d1a50d1aa5213ee74748c6d4e0 Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Thu, 22 Nov 2012 21:58:26 +0000 Subject: powerpc/eeh: Do not invalidate PE properly While the EEH does recovery on the specific PE that has PCI errors, the PCI devices belonging to the PE will be removed and the PE will be marked as invalid since we still need the information stored in the PE. We only invalidate the PE when it doesn't have associated EEH devices and valid child PEs. However, the code used to check that is wrong. The patch fixes that. Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/platforms/pseries/eeh_pe.c b/arch/powerpc/platforms/pseries/eeh_pe.c index 797cd18..d16c8de 100644 --- a/arch/powerpc/platforms/pseries/eeh_pe.c +++ b/arch/powerpc/platforms/pseries/eeh_pe.c @@ -449,7 +449,7 @@ int eeh_rmv_from_parent_pe(struct eeh_dev *edev, int purge_pe) if (list_empty(&pe->edevs)) { cnt = 0; list_for_each_entry(child, &pe->child_list, child) { - if (!(pe->type & EEH_PE_INVALID)) { + if (!(child->type & EEH_PE_INVALID)) { cnt++; break; } -- cgit v0.10.2 From 9489e9dcae718d5fde988e4a684a0f55b5f94d17 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 25 Nov 2012 17:59:19 -0800 Subject: Linux 3.7-rc7 diff --git a/Makefile b/Makefile index 9f6ca12..3d2fc46 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 7 SUBLEVEL = 0 -EXTRAVERSION = -rc6 +EXTRAVERSION = -rc7 NAME = Terrified Chipmunk # *DOCUMENTATION* -- cgit v0.10.2 From 6bdd253f635f7b2ef027d116933a6c9ec148b87f Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Sat, 24 Nov 2012 00:32:19 +0100 Subject: mac80211: fix remain-on-channel (non-)cancelling Felix Liao reported that when an interface is set DOWN while another interface is executing a ROC, the warning in ieee80211_start_next_roc() (about the first item on the list having started already) triggers. This is because ieee80211_roc_purge() calls it even if it never actually changed the list of ROC items. To fix this, simply remove the function call. If it is needed then it will be done by the ieee80211_sw_roc_work() function when the ROC item that is being removed while active is cleaned up. Cc: stable@vger.kernel.org Reported-by: Felix Liao Signed-off-by: Johannes Berg Signed-off-by: John W. Linville diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c index 83608ac..2c84185 100644 --- a/net/mac80211/offchannel.c +++ b/net/mac80211/offchannel.c @@ -458,8 +458,6 @@ void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata) list_move_tail(&roc->list, &tmp_list); roc->abort = true; } - - ieee80211_start_next_roc(local); mutex_unlock(&local->mtx); list_for_each_entry_safe(roc, tmp, &tmp_list, list) { -- cgit v0.10.2 From 97d66c47277fc801bc1ee93559a848057181ea55 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 22 Nov 2012 06:17:19 -0300 Subject: [media] s5p-fimc: Prevent race conditions during subdevs registration Make sure when fimc and fimc-lite capture video node is registered it has valid pipeline_ops assigned to it. Otherwise when a video node is opened right after is was registered there, might be an attempt to use ops that are just being assigned, after function v4l2_device_register_subdev() returns. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/s5p-fimc/fimc-capture.c b/drivers/media/platform/s5p-fimc/fimc-capture.c index 3d39d97..3fc896b 100644 --- a/drivers/media/platform/s5p-fimc/fimc-capture.c +++ b/drivers/media/platform/s5p-fimc/fimc-capture.c @@ -1774,9 +1774,13 @@ static int fimc_capture_subdev_registered(struct v4l2_subdev *sd) if (ret) return ret; + fimc->pipeline_ops = v4l2_get_subdev_hostdata(sd); + ret = fimc_register_capture_device(fimc, sd->v4l2_dev); - if (ret) + if (ret) { fimc_unregister_m2m_device(fimc); + fimc->pipeline_ops = NULL; + } return ret; } @@ -1793,6 +1797,7 @@ static void fimc_capture_subdev_unregistered(struct v4l2_subdev *sd) if (video_is_registered(&fimc->vid_cap.vfd)) { video_unregister_device(&fimc->vid_cap.vfd); media_entity_cleanup(&fimc->vid_cap.vfd.entity); + fimc->pipeline_ops = NULL; } kfree(fimc->vid_cap.ctx); fimc->vid_cap.ctx = NULL; diff --git a/drivers/media/platform/s5p-fimc/fimc-lite.c b/drivers/media/platform/s5p-fimc/fimc-lite.c index 9db246b..23f203e 100644 --- a/drivers/media/platform/s5p-fimc/fimc-lite.c +++ b/drivers/media/platform/s5p-fimc/fimc-lite.c @@ -1263,10 +1263,12 @@ static int fimc_lite_subdev_registered(struct v4l2_subdev *sd) return ret; video_set_drvdata(vfd, fimc); + fimc->pipeline_ops = v4l2_get_subdev_hostdata(sd); ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1); if (ret < 0) { media_entity_cleanup(&vfd->entity); + fimc->pipeline_ops = NULL; return ret; } @@ -1285,6 +1287,7 @@ static void fimc_lite_subdev_unregistered(struct v4l2_subdev *sd) if (video_is_registered(&fimc->vfd)) { video_unregister_device(&fimc->vfd); media_entity_cleanup(&fimc->vfd.entity); + fimc->pipeline_ops = NULL; } } diff --git a/drivers/media/platform/s5p-fimc/fimc-mdevice.c b/drivers/media/platform/s5p-fimc/fimc-mdevice.c index 38ea4d1..0531ab7 100644 --- a/drivers/media/platform/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/platform/s5p-fimc/fimc-mdevice.c @@ -352,6 +352,7 @@ static int fimc_register_callback(struct device *dev, void *p) sd = &fimc->vid_cap.subdev; sd->grp_id = FIMC_GROUP_ID; + v4l2_set_subdev_hostdata(sd, (void *)&fimc_pipeline_ops); ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); if (ret) { @@ -360,7 +361,6 @@ static int fimc_register_callback(struct device *dev, void *p) return ret; } - fimc->pipeline_ops = &fimc_pipeline_ops; fmd->fimc[fimc->id] = fimc; return 0; } @@ -375,6 +375,7 @@ static int fimc_lite_register_callback(struct device *dev, void *p) return 0; fimc->subdev.grp_id = FLITE_GROUP_ID; + v4l2_set_subdev_hostdata(&fimc->subdev, (void *)&fimc_pipeline_ops); ret = v4l2_device_register_subdev(&fmd->v4l2_dev, &fimc->subdev); if (ret) { @@ -384,7 +385,6 @@ static int fimc_lite_register_callback(struct device *dev, void *p) return ret; } - fimc->pipeline_ops = &fimc_pipeline_ops; fmd->fimc_lite[fimc->index] = fimc; return 0; } -- cgit v0.10.2 From ba6b372cf0af564bdc6c14bf68e078ae34bef222 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 22 Nov 2012 11:12:16 -0300 Subject: [media] s5p-fimc: Don't use mutex_lock_interruptible() in device release() Use uninterruptible mutex_lock in the release() file op to make sure all resources are properly freed when a process is being terminated. Returning -ERESTARTSYS has no effect for a terminating process and this caused driver resources not to be released. Not releasing the buffer queue also prevented other drivers to free memory, e.g. in MMAP -> USERPTR scenario. This patch is required for stable kernels v3.6+. Reported-by: Kamil Debski Reported-by: Marek Szyprowski Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/s5p-fimc/fimc-capture.c b/drivers/media/platform/s5p-fimc/fimc-capture.c index 3fc896b..891ee87 100644 --- a/drivers/media/platform/s5p-fimc/fimc-capture.c +++ b/drivers/media/platform/s5p-fimc/fimc-capture.c @@ -556,8 +556,7 @@ static int fimc_capture_close(struct file *file) dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state); - if (mutex_lock_interruptible(&fimc->lock)) - return -ERESTARTSYS; + mutex_lock(&fimc->lock); if (--fimc->vid_cap.refcnt == 0) { clear_bit(ST_CAPT_BUSY, &fimc->state); diff --git a/drivers/media/platform/s5p-fimc/fimc-m2m.c b/drivers/media/platform/s5p-fimc/fimc-m2m.c index 4500e44..62afed3 100644 --- a/drivers/media/platform/s5p-fimc/fimc-m2m.c +++ b/drivers/media/platform/s5p-fimc/fimc-m2m.c @@ -718,8 +718,7 @@ static int fimc_m2m_release(struct file *file) dbg("pid: %d, state: 0x%lx, refcnt= %d", task_pid_nr(current), fimc->state, fimc->m2m.refcnt); - if (mutex_lock_interruptible(&fimc->lock)) - return -ERESTARTSYS; + mutex_lock(&fimc->lock); v4l2_m2m_ctx_release(ctx->m2m_ctx); fimc_ctrls_delete(ctx); -- cgit v0.10.2 From ddc43d6dc7df0849fe41b91460fa76145cf87b67 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 22 Nov 2012 11:13:04 -0300 Subject: [media] fimc-lite: Don't use mutex_lock_interruptible() in device release() Use uninterruptible mutex_lock in the release() file op to make sure all resources are properly freed when a process is being terminated. Returning -ERESTARTSYS has no effect for a terminating process and this may cause driver resources not to be released. This patch is required for stable kernels v3.5+. Reported-by: Marek Szyprowski Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/s5p-fimc/fimc-lite.c b/drivers/media/platform/s5p-fimc/fimc-lite.c index 23f203e..1b309a7 100644 --- a/drivers/media/platform/s5p-fimc/fimc-lite.c +++ b/drivers/media/platform/s5p-fimc/fimc-lite.c @@ -491,8 +491,7 @@ static int fimc_lite_close(struct file *file) struct fimc_lite *fimc = video_drvdata(file); int ret; - if (mutex_lock_interruptible(&fimc->lock)) - return -ERESTARTSYS; + mutex_lock(&fimc->lock); if (--fimc->ref_count == 0 && fimc->out_path == FIMC_IO_DMA) { clear_bit(ST_FLITE_IN_USE, &fimc->state); -- cgit v0.10.2 From 9868018045c555c7a724c0cb7eeb0caeba9d43ff Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Wed, 21 Nov 2012 11:46:43 -0300 Subject: [media] exynos-gsc: Don't use mutex_lock_interruptible() in device release() Use uninterruptible mutex_lock in the release() file op to make sure all resources are properly freed when a process is being terminated. Returning -ERESTARTSYS has no effect for a terminating process and this may cause driver resources not to be released. Reported-by: Marek Szyprowski Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/exynos-gsc/gsc-m2m.c b/drivers/media/platform/exynos-gsc/gsc-m2m.c index 3c7f005..2650be3 100644 --- a/drivers/media/platform/exynos-gsc/gsc-m2m.c +++ b/drivers/media/platform/exynos-gsc/gsc-m2m.c @@ -657,8 +657,7 @@ static int gsc_m2m_release(struct file *file) pr_debug("pid: %d, state: 0x%lx, refcnt= %d", task_pid_nr(current), gsc->state, gsc->m2m.refcnt); - if (mutex_lock_interruptible(&gsc->lock)) - return -ERESTARTSYS; + mutex_lock(&gsc->lock); v4l2_m2m_ctx_release(ctx->m2m_ctx); gsc_ctrls_delete(ctx); -- cgit v0.10.2 From bca36481e6fdc8e64f5837bc1d7f9752f3437c63 Mon Sep 17 00:00:00 2001 From: Shaik Ameer Basha Date: Wed, 7 Nov 2012 03:38:31 -0300 Subject: [media] exynos-gsc: Fix settings for input and output image RGB type Macros used to set input and output RGB type aren't correct. Updating the macros as per register manual. Signed-off-by: Shaik Ameer Basha Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/exynos-gsc/gsc-regs.h b/drivers/media/platform/exynos-gsc/gsc-regs.h index 533e994..4678f9a 100644 --- a/drivers/media/platform/exynos-gsc/gsc-regs.h +++ b/drivers/media/platform/exynos-gsc/gsc-regs.h @@ -40,10 +40,10 @@ #define GSC_IN_ROT_YFLIP (2 << 16) #define GSC_IN_ROT_XFLIP (1 << 16) #define GSC_IN_RGB_TYPE_MASK (3 << 14) -#define GSC_IN_RGB_HD_WIDE (3 << 14) -#define GSC_IN_RGB_HD_NARROW (2 << 14) -#define GSC_IN_RGB_SD_WIDE (1 << 14) -#define GSC_IN_RGB_SD_NARROW (0 << 14) +#define GSC_IN_RGB_HD_NARROW (3 << 14) +#define GSC_IN_RGB_HD_WIDE (2 << 14) +#define GSC_IN_RGB_SD_NARROW (1 << 14) +#define GSC_IN_RGB_SD_WIDE (0 << 14) #define GSC_IN_YUV422_1P_ORDER_MASK (1 << 13) #define GSC_IN_YUV422_1P_ORDER_LSB_Y (0 << 13) #define GSC_IN_YUV422_1P_OEDER_LSB_C (1 << 13) @@ -85,10 +85,10 @@ #define GSC_OUT_GLOBAL_ALPHA_MASK (0xff << 24) #define GSC_OUT_GLOBAL_ALPHA(x) ((x) << 24) #define GSC_OUT_RGB_TYPE_MASK (3 << 10) -#define GSC_OUT_RGB_HD_NARROW (3 << 10) -#define GSC_OUT_RGB_HD_WIDE (2 << 10) -#define GSC_OUT_RGB_SD_NARROW (1 << 10) -#define GSC_OUT_RGB_SD_WIDE (0 << 10) +#define GSC_OUT_RGB_HD_WIDE (3 << 10) +#define GSC_OUT_RGB_HD_NARROW (2 << 10) +#define GSC_OUT_RGB_SD_WIDE (1 << 10) +#define GSC_OUT_RGB_SD_NARROW (0 << 10) #define GSC_OUT_YUV422_1P_ORDER_MASK (1 << 9) #define GSC_OUT_YUV422_1P_ORDER_LSB_Y (0 << 9) #define GSC_OUT_YUV422_1P_OEDER_LSB_C (1 << 9) -- cgit v0.10.2 From 24fc681a8ea6efa6bd7d6f366824a31addad2203 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Sat, 10 Nov 2012 19:57:56 -0300 Subject: [media] exynos-gsc: Add missing video device vfl_dir flag initialization vfl_dir should be set to VFL_DIR_M2M so valid ioctls for this mem-to-mem device can be properly determined in the v4l2 core. Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/exynos-gsc/gsc-m2m.c b/drivers/media/platform/exynos-gsc/gsc-m2m.c index 2650be3..c065d04 100644 --- a/drivers/media/platform/exynos-gsc/gsc-m2m.c +++ b/drivers/media/platform/exynos-gsc/gsc-m2m.c @@ -731,6 +731,7 @@ int gsc_register_m2m_device(struct gsc_dev *gsc) gsc->vdev.ioctl_ops = &gsc_m2m_ioctl_ops; gsc->vdev.release = video_device_release_empty; gsc->vdev.lock = &gsc->lock; + gsc->vdev.vfl_dir = VFL_DIR_M2M; snprintf(gsc->vdev.name, sizeof(gsc->vdev.name), "%s.%d:m2m", GSC_MODULE_NAME, gsc->id); -- cgit v0.10.2 From d9acbe1ace5cacc5e104443d94c7402c7fb9dcf9 Mon Sep 17 00:00:00 2001 From: Arun Kumar K Date: Mon, 5 Nov 2012 05:14:03 -0300 Subject: [media] s5p-mfc: Bug fix of timestamp/timecode copy mechanism Modified the function s5p_mfc_get_dec_y_adr_v6 to access the decode Y address register instead of display Y address. Signed-off-by: Sunil Mazhavanchery Signed-off-by: Arun Kumar K Acked-by: Kamil Debski Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c index 50b5bee..3a8cfd9 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c @@ -1762,7 +1762,7 @@ int s5p_mfc_get_dspl_y_adr_v6(struct s5p_mfc_dev *dev) int s5p_mfc_get_dec_y_adr_v6(struct s5p_mfc_dev *dev) { - return mfc_read(dev, S5P_FIMV_D_DISPLAY_LUMA_ADDR_V6); + return mfc_read(dev, S5P_FIMV_D_DECODED_LUMA_ADDR_V6); } int s5p_mfc_get_dspl_status_v6(struct s5p_mfc_dev *dev) -- cgit v0.10.2 From d2a0db1ee01aea154ccc460e45a16857e32c4427 Mon Sep 17 00:00:00 2001 From: Arun Kumar K Date: Wed, 14 Nov 2012 09:26:45 -0300 Subject: [media] s5p-mfc: Handle multi-frame input buffer When one input buffer has multiple frames, it should be fed again to the hardware with the remaining bytes. Removed the check for P frame in this scenario as this condition can come with all frame types. Signed-off-by: Arun Kumar K Signed-off-by: ARUN MANKUZHI Acked-by: Kamil Debski Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c index 130f4ac..3afe879 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c @@ -381,11 +381,8 @@ static void s5p_mfc_handle_frame(struct s5p_mfc_ctx *ctx, ctx->consumed_stream += s5p_mfc_hw_call(dev->mfc_ops, get_consumed_stream, dev); if (ctx->codec_mode != S5P_MFC_CODEC_H264_DEC && - s5p_mfc_hw_call(dev->mfc_ops, - get_dec_frame_type, dev) == - S5P_FIMV_DECODE_FRAME_P_FRAME - && ctx->consumed_stream + STUFF_BYTE < - src_buf->b->v4l2_planes[0].bytesused) { + ctx->consumed_stream + STUFF_BYTE < + src_buf->b->v4l2_planes[0].bytesused) { /* Run MFC again on the same buffer */ mfc_debug(2, "Running again the same buffer\n"); ctx->after_packed_pb = 1; -- cgit v0.10.2 From c9faaa09e2a1335678f09c70a0d0eda095564bab Mon Sep 17 00:00:00 2001 From: Oliver Hartkopp Date: Wed, 21 Nov 2012 22:43:59 +0100 Subject: can: peak_usb: fix hwtstamp assignment The skb->tstamp is set to the hardware timestamp when available in the USB urb message. This leads to user visible timestamps which contain the 'uptime' of the USB adapter - and not the usual system generated timestamp. Fix this wrong assignment by applying the available hardware timestamp to the skb_shared_hwtstamps data structure - which is intended for this purpose. Cc: linux-stable Signed-off-by: Oliver Hartkopp Signed-off-by: Marc Kleine-Budde diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c index 86f26a1..25723d8 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb.c @@ -519,8 +519,10 @@ static int pcan_usb_decode_error(struct pcan_usb_msg_context *mc, u8 n, mc->pdev->dev.can.state = new_state; if (status_len & PCAN_USB_STATUSLEN_TIMESTAMP) { + struct skb_shared_hwtstamps *hwts = skb_hwtstamps(skb); + peak_usb_get_ts_tv(&mc->pdev->time_ref, mc->ts16, &tv); - skb->tstamp = timeval_to_ktime(tv); + hwts->hwtstamp = timeval_to_ktime(tv); } netif_rx(skb); @@ -605,6 +607,7 @@ static int pcan_usb_decode_data(struct pcan_usb_msg_context *mc, u8 status_len) struct sk_buff *skb; struct can_frame *cf; struct timeval tv; + struct skb_shared_hwtstamps *hwts; skb = alloc_can_skb(mc->netdev, &cf); if (!skb) @@ -652,7 +655,8 @@ static int pcan_usb_decode_data(struct pcan_usb_msg_context *mc, u8 status_len) /* convert timestamp into kernel time */ peak_usb_get_ts_tv(&mc->pdev->time_ref, mc->ts16, &tv); - skb->tstamp = timeval_to_ktime(tv); + hwts = skb_hwtstamps(skb); + hwts->hwtstamp = timeval_to_ktime(tv); /* push the skb */ netif_rx(skb); diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c index e1626d9..30d79bf 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c @@ -532,6 +532,7 @@ static int pcan_usb_pro_handle_canmsg(struct pcan_usb_pro_interface *usb_if, struct can_frame *can_frame; struct sk_buff *skb; struct timeval tv; + struct skb_shared_hwtstamps *hwts; skb = alloc_can_skb(netdev, &can_frame); if (!skb) @@ -549,7 +550,8 @@ static int pcan_usb_pro_handle_canmsg(struct pcan_usb_pro_interface *usb_if, memcpy(can_frame->data, rx->data, can_frame->can_dlc); peak_usb_get_ts_tv(&usb_if->time_ref, le32_to_cpu(rx->ts32), &tv); - skb->tstamp = timeval_to_ktime(tv); + hwts = skb_hwtstamps(skb); + hwts->hwtstamp = timeval_to_ktime(tv); netif_rx(skb); netdev->stats.rx_packets++; @@ -570,6 +572,7 @@ static int pcan_usb_pro_handle_error(struct pcan_usb_pro_interface *usb_if, u8 err_mask = 0; struct sk_buff *skb; struct timeval tv; + struct skb_shared_hwtstamps *hwts; /* nothing should be sent while in BUS_OFF state */ if (dev->can.state == CAN_STATE_BUS_OFF) @@ -664,7 +667,8 @@ static int pcan_usb_pro_handle_error(struct pcan_usb_pro_interface *usb_if, dev->can.state = new_state; peak_usb_get_ts_tv(&usb_if->time_ref, le32_to_cpu(er->ts32), &tv); - skb->tstamp = timeval_to_ktime(tv); + hwts = skb_hwtstamps(skb); + hwts->hwtstamp = timeval_to_ktime(tv); netif_rx(skb); netdev->stats.rx_packets++; netdev->stats.rx_bytes += can_frame->can_dlc; -- cgit v0.10.2 From 81b401100c01d2357031e874689f89bd788d13cd Mon Sep 17 00:00:00 2001 From: Oliver Hartkopp Date: Mon, 26 Nov 2012 22:24:23 +0100 Subject: can: bcm: initialize ifindex for timeouts without previous frame reception Set in the rx_ifindex to pass the correct interface index in the case of a message timeout detection. Usually the rx_ifindex value is set at receive time. But when no CAN frame has been received the RX_TIMEOUT notification did not contain a valid value. Cc: linux-stable Reported-by: Andre Naujoks Signed-off-by: Oliver Hartkopp Signed-off-by: Marc Kleine-Budde diff --git a/net/can/bcm.c b/net/can/bcm.c index 6f74758..969b7cd 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -1084,6 +1084,9 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, op->sk = sk; op->ifindex = ifindex; + /* ifindex for timeout events w/o previous frame reception */ + op->rx_ifindex = ifindex; + /* initialize uninitialized (kzalloc) structure */ hrtimer_init(&op->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); op->timer.function = bcm_rx_timeout_handler; -- cgit v0.10.2 From e1a676424c290b1c8d757e3860170ac7ecd89af4 Mon Sep 17 00:00:00 2001 From: Neal Cardwell Date: Sat, 24 Nov 2012 18:54:37 +0000 Subject: ipv4: avoid passing NULL to inet_putpeer() in icmpv4_xrlim_allow() inet_getpeer_v4() can return NULL under OOM conditions, and while inet_peer_xrlim_allow() is OK with a NULL peer, inet_putpeer() will crash. This code path now uses the same idiom as the others from: 1d861aa4b3fb08822055345f480850205ffe6170 ("inet: Minimize use of cached route inetpeer."). Signed-off-by: Neal Cardwell Signed-off-by: David S. Miller diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index f2eccd5..17ff9fd 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -257,7 +257,8 @@ static inline bool icmpv4_xrlim_allow(struct net *net, struct rtable *rt, struct inet_peer *peer = inet_getpeer_v4(net->ipv4.peers, fl4->daddr, 1); rc = inet_peer_xrlim_allow(peer, net->ipv4.sysctl_icmp_ratelimit); - inet_putpeer(peer); + if (peer) + inet_putpeer(peer); } out: return rc; -- cgit v0.10.2 From b49d3c1e1c948d76d64790abe9acffa9fa747d19 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 25 Nov 2012 09:44:29 +0000 Subject: net: ipmr: limit MRT_TABLE identifiers Name of pimreg devices are built from following format : char name[IFNAMSIZ]; // IFNAMSIZ == 16 sprintf(name, "pimreg%u", mrt->id); We must therefore limit mrt->id to 9 decimal digits or risk a buffer overflow and a crash. Restrict table identifiers in [0 ... 999999999] interval. Reported-by: Chen Gang Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 6168c4d..3eab2b2 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -1318,6 +1318,10 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsi if (get_user(v, (u32 __user *)optval)) return -EFAULT; + /* "pimreg%u" should not exceed 16 bytes (IFNAMSIZ) */ + if (v != RT_TABLE_DEFAULT && v >= 1000000000) + return -EINVAL; + rtnl_lock(); ret = 0; if (sk == rtnl_dereference(mrt->mroute_sk)) { -- cgit v0.10.2 From 9d34340ebd00eaadbd414e02acc881c5fae903d3 Mon Sep 17 00:00:00 2001 From: Mark Salter Date: Mon, 26 Nov 2012 18:06:13 -0500 Subject: c6x: run do_notify_resume with interrupts enabled C6x was mistakenly running do_notify_resume with interrupts disabled. This would triggerlead to a warning in local_bh_enable() because interrupts were disabled: ------------[ cut here ]------------ WARNING: at /es/linux/linux-next/kernel/softirq.c:160 local_bh_enable+0x5c/0x10c() Modules linked in: e02f384d e002cda8 e02f3469 e02f384d 000000a0 e00363fc e01cce58 e5005c00 e0327986 00000000 e63c0aec 00000164 e00363fc 00000000 fffffffe e5005c00 e61fde00 e0268184 00000134 e01c91dc 00000001 fffffffe 00000000 10000100 e01c80e4 e5005c00 00000000 00000000 00000000 e63c0aec e526ce00 10000100 e628f920 e63c0a88 e6010410 e6449750 e5005c20 00000000 00000000 e63c0a80 e5005c20 e01c8590 e63c0a80 e5005c20 e63c0aec e00a0554 e009c758 e639e860 irq_spurious_proc_fops+0x6ad/0x3438 warn_slowpath_common+0x8c/0xb8 irq_spurious_proc_fops+0x2c9/0x3438 irq_spurious_proc_fops+0x6ad/0x3438 local_bh_enable+0x5c/0x10c sk_alloc+0x34/0xa4 local_bh_enable+0x5c/0x10c unix_release_sock+0x5c/0x2a0 sys_connect+0x94/0xd4 sock_release+0x38/0x104 sock_close+0x3c/0x54 __fput+0x154/0x2ec filp_close+0xc0/0xe4 task_work_run+0xdc/0x12c sys_close+0x2c/0x74 resume_userspace+0x0/0x30 ---[ end trace a70cbd610ae1f6b4 ]--- This patch enables interrupts before calling do_notify_resume(). Signed-off-by: Mark Salter diff --git a/arch/c6x/kernel/entry.S b/arch/c6x/kernel/entry.S index 5449c36..0c164c2 100644 --- a/arch/c6x/kernel/entry.S +++ b/arch/c6x/kernel/entry.S @@ -277,6 +277,8 @@ work_rescheduled: [A1] BNOP .S1 work_resched,5 work_notifysig: + ;; enable interrupts for do_notify_resume() + UNMASK_INT B2 B .S2 do_notify_resume LDW .D2T1 *+SP(REGS__END+8),A6 ; syscall flag ADDKPC .S2 resume_userspace,B3,1 -- cgit v0.10.2 From 9c0603f487b6b0cfa0b2bbcab7f06333e78db652 Mon Sep 17 00:00:00 2001 From: Mark Salter Date: Mon, 26 Nov 2012 18:14:00 -0500 Subject: c6x: fix misleading comment A comment in entry.S incorrectly stated that interrupt vectors called __do_IRQ() and that int6 vector was used for syscalls. Both statements are incorrect for the current kernel, so this patch cleans up the wording to reflect current reality. Signed-off-by: Mark Salter diff --git a/arch/c6x/kernel/entry.S b/arch/c6x/kernel/entry.S index 0c164c2..0ed6157 100644 --- a/arch/c6x/kernel/entry.S +++ b/arch/c6x/kernel/entry.S @@ -429,8 +429,7 @@ ENTRY(ret_from_kernel_execve) ENDPROC(ret_from_kernel_execve) ;; - ;; These are the interrupt handlers, responsible for calling __do_IRQ() - ;; int6 is used for syscalls (see _system_call entry) + ;; These are the interrupt handlers, responsible for calling c6x_do_IRQ() ;; .macro SAVE_ALL_INT SAVE_ALL IRP,ITSR -- cgit v0.10.2 From cb7cb2864e758a1b040040bc55e404c677c911cb Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Wed, 21 Nov 2012 14:41:21 -0800 Subject: x86, kvm: Remove incorrect redundant assembly constraint In __emulate_1op_rax_rdx, we use "+a" and "+d" which are input/output constraints, and *then* use "a" and "d" as input constraints. This is incorrect, but happens to work on some versions of gcc. However, it breaks gcc with -O0 and icc, and may break on future versions of gcc. Reported-and-tested-by: Melanie Blower Signed-off-by: H. Peter Anvin Link: http://lkml.kernel.org/r/B3584E72CFEBED439A3ECA9BCE67A4EF1B17AF90@FMSMSX107.amr.corp.intel.com Reviewed-by: Paolo Bonzini Acked-by: Marcelo Tosatti diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 39171cb..bba39bf 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -426,8 +426,7 @@ static void invalidate_registers(struct x86_emulate_ctxt *ctxt) _ASM_EXTABLE(1b, 3b) \ : "=m" ((ctxt)->eflags), "=&r" (_tmp), \ "+a" (*rax), "+d" (*rdx), "+qm"(_ex) \ - : "i" (EFLAGS_MASK), "m" ((ctxt)->src.val), \ - "a" (*rax), "d" (*rdx)); \ + : "i" (EFLAGS_MASK), "m" ((ctxt)->src.val)); \ } while (0) /* instruction has only one source operand, destination is implicit (e.g. mul, div, imul, idiv) */ -- cgit v0.10.2 From 874807a83139abc094f939e93623c5623573d543 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 27 Nov 2012 12:14:40 +1100 Subject: md/raid1{,0}: fix deadlock in bitmap_unplug. If the raid1 or raid10 unplug function gets called from a make_request function (which is very possible) when there are bios on the current->bio_list list, then it will not be able to successfully call bitmap_unplug() and it could need to submit more bios and wait for them to complete. But they won't complete while current->bio_list is non-empty. So detect that case and handle the unplugging off to another thread just like we already do when called from within the scheduler. RAID1 version of bug was introduced in 3.6, so that part of fix is suitable for 3.6.y. RAID10 part won't apply. Cc: stable@vger.kernel.org Reported-by: Torsten Kaiser Reported-by: Peter Maloney Signed-off-by: NeilBrown diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 636bae0..a0f7309 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -963,7 +963,7 @@ static void raid1_unplug(struct blk_plug_cb *cb, bool from_schedule) struct r1conf *conf = mddev->private; struct bio *bio; - if (from_schedule) { + if (from_schedule || current->bio_list) { spin_lock_irq(&conf->device_lock); bio_list_merge(&conf->pending_bio_list, &plug->pending); conf->pending_count += plug->pending_cnt; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 0d5d0ff..c9acbd7 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1069,7 +1069,7 @@ static void raid10_unplug(struct blk_plug_cb *cb, bool from_schedule) struct r10conf *conf = mddev->private; struct bio *bio; - if (from_schedule) { + if (from_schedule || current->bio_list) { spin_lock_irq(&conf->device_lock); bio_list_merge(&conf->pending_bio_list, &plug->pending); conf->pending_count += plug->pending_cnt; -- cgit v0.10.2 From c5782e9f5a535af09d7834693a52afdbcc6e5f3f Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Mon, 26 Nov 2012 16:29:38 -0800 Subject: include/linux/bug.h: fix sparse warning related to BUILD_BUG_ON_INVALID Commit baf05aa9271b ("bug: introduce BUILD_BUG_ON_INVALID() macro") introduces this macro only when _CHECKER_ is not defined. Define a silent macro in the else condition to fix following sparse warning: mm/filemap.c:395:9: error: undefined identifier 'BUILD_BUG_ON_INVALID' mm/filemap.c:396:9: error: undefined identifier 'BUILD_BUG_ON_INVALID' mm/filemap.c:397:9: error: undefined identifier 'BUILD_BUG_ON_INVALID' include/linux/mm.h:419:9: error: undefined identifier 'BUILD_BUG_ON_INVALID' include/linux/mm.h:419:9: error: not a function Signed-off-by: Tushar Behera Acked-by: Konstantin Khlebnikov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/include/linux/bug.h b/include/linux/bug.h index aaac4bb..b1cf40d 100644 --- a/include/linux/bug.h +++ b/include/linux/bug.h @@ -15,6 +15,7 @@ struct pt_regs; #define BUILD_BUG_ON_NOT_POWER_OF_2(n) #define BUILD_BUG_ON_ZERO(e) (0) #define BUILD_BUG_ON_NULL(e) ((void*)0) +#define BUILD_BUG_ON_INVALID(e) (0) #define BUILD_BUG_ON(condition) #define BUILD_BUG() (0) #else /* __CHECKER__ */ -- cgit v0.10.2 From 56c176c9cac9a77249fa1736bfd792f379d61942 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 26 Nov 2012 16:29:39 -0800 Subject: UAPI: strip the _UAPI prefix from header guards during header installation Strip the _UAPI prefix from header guards during header installation so that any userspace dependencies aren't affected. glibc, for example, checks for linux/types.h, linux/kernel.h, linux/compiler.h and linux/list.h by their guards - though the last two aren't actually exported. libtool: compile: gcc -std=gnu99 -DHAVE_CONFIG_H -I. -Wall -Werror -Wformat -Wformat-security -D_FORTIFY_SOURCE=2 -fno-delete-null-pointer-checks -fstack-protector -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i686 -mtune=atom -fasynchronous-unwind-tables -c child.c -fPIC -DPIC -o .libs/child.o In file included from cli.c:20:0: common.h:152:8: error: redefinition of 'struct sysinfo' In file included from /usr/include/linux/kernel.h:4:0, from /usr/include/linux/sysctl.h:25, from /usr/include/sys/sysctl.h:43, from common.h:50, from cli.c:20: /usr/include/linux/sysinfo.h:7:8: note: originally defined here Reported-by: Tomasz Torcz Signed-off-by: David Howells Acked-by: Josh Boyer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/scripts/headers_install.pl b/scripts/headers_install.pl index 239d22d..6c353ae 100644 --- a/scripts/headers_install.pl +++ b/scripts/headers_install.pl @@ -42,6 +42,9 @@ foreach my $filename (@files) { $line =~ s/(^|\s)(inline)\b/$1__$2__/g; $line =~ s/(^|\s)(asm)\b(\s|[(]|$)/$1__$2__$3/g; $line =~ s/(^|\s|[(])(volatile)\b(\s|[(]|$)/$1__$2__$3/g; + $line =~ s/#ifndef _UAPI/#ifndef /; + $line =~ s/#define _UAPI/#define /; + $line =~ s!#endif /[*] _UAPI!#endif /* !; printf {$out} "%s", $line; } close $out; -- cgit v0.10.2 From 05f564849d49499ced97913a0914b5950577d07d Mon Sep 17 00:00:00 2001 From: Stanislav Kinsbursky Date: Mon, 26 Nov 2012 16:29:42 -0800 Subject: proc: check vma->vm_file before dereferencing Commit 7b540d0646ce ("proc_map_files_readdir(): don't bother with grabbing files") switched proc_map_files_readdir() to use @f_mode directly instead of grabbing @file reference, but same time the test for @vm_file presence was lost leading to nil dereference. The patch brings the test back. The all proc_map_files feature is CONFIG_CHECKPOINT_RESTORE wrapped (which is set to 'n' by default) so the bug doesn't affect regular kernels. The regression is 3.7-rc1 only as far as I can tell. [gorcunov@openvz.org: provided changelog] Signed-off-by: Stanislav Kinsbursky Acked-by: Cyrill Gorcunov Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/proc/base.c b/fs/proc/base.c index 3c231ad..9e28356 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1877,8 +1877,9 @@ static struct dentry *proc_map_files_lookup(struct inode *dir, if (!vma) goto out_no_vma; - result = proc_map_files_instantiate(dir, dentry, task, - (void *)(unsigned long)vma->vm_file->f_mode); + if (vma->vm_file) + result = proc_map_files_instantiate(dir, dentry, task, + (void *)(unsigned long)vma->vm_file->f_mode); out_no_vma: up_read(&mm->mmap_sem); -- cgit v0.10.2 From 82b212f40059bffd6808c07266a942d444d5558a Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Mon, 26 Nov 2012 16:29:45 -0800 Subject: Revert "mm: remove __GFP_NO_KSWAPD" With "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures" reverted, Zdenek Kabelac reported the following Hmm, so it's just took longer to hit the problem and observe kswapd0 spinning on my CPU again - it's not as endless like before - but still it easily eats minutes - it helps to turn off Firefox or TB (memory hungry apps) so kswapd0 stops soon - and restart those apps again. (And I still have like >1GB of cached memory) kswapd0 R running task 0 30 2 0x00000000 Call Trace: preempt_schedule+0x42/0x60 _raw_spin_unlock+0x55/0x60 put_super+0x31/0x40 drop_super+0x22/0x30 prune_super+0x149/0x1b0 shrink_slab+0xba/0x510 The sysrq+m indicates the system has no swap so it'll never reclaim anonymous pages as part of reclaim/compaction. That is one part of the problem but not the root cause as file-backed pages could also be reclaimed. The likely underlying problem is that kswapd is woken up or kept awake for each THP allocation request in the page allocator slow path. If compaction fails for the requesting process then compaction will be deferred for a time and direct reclaim is avoided. However, if there are a storm of THP requests that are simply rejected, it will still be the the case that kswapd is awake for a prolonged period of time as pgdat->kswapd_max_order is updated each time. This is noticed by the main kswapd() loop and it will not call kswapd_try_to_sleep(). Instead it will loopp, shrinking a small number of pages and calling shrink_slab() on each iteration. The temptation is to supply a patch that checks if kswapd was woken for THP and if so ignore pgdat->kswapd_max_order but it'll be a hack and not backed up by proper testing. As 3.7 is very close to release and this is not a bug we should release with, a safer path is to revert "mm: remove __GFP_NO_KSWAPD" for now and revisit it with the view to ironing out the balance_pgdat() logic in general. Signed-off-by: Mel Gorman Cc: Zdenek Kabelac Cc: Seth Jennings Cc: Valdis Kletnieks Cc: Jiri Slaby Cc: Rik van Riel Cc: Robert Jennings Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 374c46d..ec794a7 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -1077,7 +1077,8 @@ EXPORT_SYMBOL_GPL(mtd_writev); * until the request succeeds or until the allocation size falls below * the system page size. This attempts to make sure it does not adversely * impact system performance, so when allocating more than one page, we - * ask the memory allocator to avoid re-trying. + * ask the memory allocator to avoid re-trying, swapping, writing back + * or performing I/O. * * Note, this function also makes sure that the allocated buffer is aligned to * the MTD device's min. I/O unit, i.e. the "mtd->writesize" value. @@ -1091,7 +1092,8 @@ EXPORT_SYMBOL_GPL(mtd_writev); */ void *mtd_kmalloc_up_to(const struct mtd_info *mtd, size_t *size) { - gfp_t flags = __GFP_NOWARN | __GFP_WAIT | __GFP_NORETRY; + gfp_t flags = __GFP_NOWARN | __GFP_WAIT | + __GFP_NORETRY | __GFP_NO_KSWAPD; size_t min_alloc = max_t(size_t, mtd->writesize, PAGE_SIZE); void *kbuf; diff --git a/include/linux/gfp.h b/include/linux/gfp.h index 02c1c97..d0a7967 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -31,6 +31,7 @@ struct vm_area_struct; #define ___GFP_THISNODE 0x40000u #define ___GFP_RECLAIMABLE 0x80000u #define ___GFP_NOTRACK 0x200000u +#define ___GFP_NO_KSWAPD 0x400000u #define ___GFP_OTHER_NODE 0x800000u #define ___GFP_WRITE 0x1000000u @@ -85,6 +86,7 @@ struct vm_area_struct; #define __GFP_RECLAIMABLE ((__force gfp_t)___GFP_RECLAIMABLE) /* Page is reclaimable */ #define __GFP_NOTRACK ((__force gfp_t)___GFP_NOTRACK) /* Don't track with kmemcheck */ +#define __GFP_NO_KSWAPD ((__force gfp_t)___GFP_NO_KSWAPD) #define __GFP_OTHER_NODE ((__force gfp_t)___GFP_OTHER_NODE) /* On behalf of other node */ #define __GFP_WRITE ((__force gfp_t)___GFP_WRITE) /* Allocator intends to dirty page */ @@ -114,7 +116,8 @@ struct vm_area_struct; __GFP_MOVABLE) #define GFP_IOFS (__GFP_IO | __GFP_FS) #define GFP_TRANSHUGE (GFP_HIGHUSER_MOVABLE | __GFP_COMP | \ - __GFP_NOMEMALLOC | __GFP_NORETRY | __GFP_NOWARN) + __GFP_NOMEMALLOC | __GFP_NORETRY | __GFP_NOWARN | \ + __GFP_NO_KSWAPD) #ifdef CONFIG_NUMA #define GFP_THISNODE (__GFP_THISNODE | __GFP_NOWARN | __GFP_NORETRY) diff --git a/include/trace/events/gfpflags.h b/include/trace/events/gfpflags.h index 9391706..d6fd8e5 100644 --- a/include/trace/events/gfpflags.h +++ b/include/trace/events/gfpflags.h @@ -36,6 +36,7 @@ {(unsigned long)__GFP_RECLAIMABLE, "GFP_RECLAIMABLE"}, \ {(unsigned long)__GFP_MOVABLE, "GFP_MOVABLE"}, \ {(unsigned long)__GFP_NOTRACK, "GFP_NOTRACK"}, \ + {(unsigned long)__GFP_NO_KSWAPD, "GFP_NO_KSWAPD"}, \ {(unsigned long)__GFP_OTHER_NODE, "GFP_OTHER_NODE"} \ ) : "GFP_NOWAIT" diff --git a/mm/page_alloc.c b/mm/page_alloc.c index bcb72c6..9287157 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2416,8 +2416,9 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, goto nopage; restart: - wake_all_kswapd(order, zonelist, high_zoneidx, - zone_idx(preferred_zone)); + if (!(gfp_mask & __GFP_NO_KSWAPD)) + wake_all_kswapd(order, zonelist, high_zoneidx, + zone_idx(preferred_zone)); /* * OK, we're below the kswapd watermark and have kicked background @@ -2494,7 +2495,7 @@ rebalance: * system then fail the allocation instead of entering direct reclaim. */ if ((deferred_compaction || contended_compaction) && - (gfp_mask & (__GFP_MOVABLE|__GFP_REPEAT)) == __GFP_MOVABLE) + (gfp_mask & __GFP_NO_KSWAPD)) goto nopage; /* Try direct reclaim and then allocating */ -- cgit v0.10.2 From 50694c28f1e1dbea18272980d265742a5027fb63 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Mon, 26 Nov 2012 16:29:48 -0800 Subject: mm: vmscan: check for fatal signals iff the process was throttled Commit 5515061d22f0 ("mm: throttle direct reclaimers if PF_MEMALLOC reserves are low and swap is backed by network storage") introduced a check for fatal signals after a process gets throttled for network storage. The intention was that if a process was throttled and got killed that it should not trigger the OOM killer. As pointed out by Minchan Kim and David Rientjes, this check is in the wrong place and too broad. If a system is in am OOM situation and a process is exiting, it can loop in __alloc_pages_slowpath() and calling direct reclaim in a loop. As the fatal signal is pending it returns 1 as if it is making forward progress and can effectively deadlock. This patch moves the fatal_signal_pending() check after throttling to throttle_direct_reclaim() where it belongs. If the process is killed while throttled, it will return immediately without direct reclaim except now it will have TIF_MEMDIE set and will use the PFMEMALLOC reserves. Minchan pointed out that it may be better to direct reclaim before returning to avoid using the reserves because there may be pages that can easily reclaim that would avoid using the reserves. However, we do no such targetted reclaim and there is no guarantee that suitable pages are available. As it is expected that this throttling happens when swap-over-NFS is used there is a possibility that the process will instead swap which may allocate network buffers from the PFMEMALLOC reserves. Hence, in the swap-over-nfs case where a process can be throtted and be killed it can use the reserves to exit or it can potentially use reserves to swap a few pages and then exit. This patch takes the option of using the reserves if necessary to allow the process exit quickly. If this patch passes review it should be considered a -stable candidate for 3.6. Signed-off-by: Mel Gorman Cc: David Rientjes Cc: Luigi Semenzato Cc: Dan Magenheimer Cc: KOSAKI Motohiro Cc: Sonny Rao Cc: Minchan Kim Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/vmscan.c b/mm/vmscan.c index 48550c6..cbf84e1 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2207,9 +2207,12 @@ static bool pfmemalloc_watermark_ok(pg_data_t *pgdat) * Throttle direct reclaimers if backing storage is backed by the network * and the PFMEMALLOC reserve for the preferred node is getting dangerously * depleted. kswapd will continue to make progress and wake the processes - * when the low watermark is reached + * when the low watermark is reached. + * + * Returns true if a fatal signal was delivered during throttling. If this + * happens, the page allocator should not consider triggering the OOM killer. */ -static void throttle_direct_reclaim(gfp_t gfp_mask, struct zonelist *zonelist, +static bool throttle_direct_reclaim(gfp_t gfp_mask, struct zonelist *zonelist, nodemask_t *nodemask) { struct zone *zone; @@ -2224,13 +2227,20 @@ static void throttle_direct_reclaim(gfp_t gfp_mask, struct zonelist *zonelist, * processes to block on log_wait_commit(). */ if (current->flags & PF_KTHREAD) - return; + goto out; + + /* + * If a fatal signal is pending, this process should not throttle. + * It should return quickly so it can exit and free its memory + */ + if (fatal_signal_pending(current)) + goto out; /* Check if the pfmemalloc reserves are ok */ first_zones_zonelist(zonelist, high_zoneidx, NULL, &zone); pgdat = zone->zone_pgdat; if (pfmemalloc_watermark_ok(pgdat)) - return; + goto out; /* Account for the throttling */ count_vm_event(PGSCAN_DIRECT_THROTTLE); @@ -2246,12 +2256,20 @@ static void throttle_direct_reclaim(gfp_t gfp_mask, struct zonelist *zonelist, if (!(gfp_mask & __GFP_FS)) { wait_event_interruptible_timeout(pgdat->pfmemalloc_wait, pfmemalloc_watermark_ok(pgdat), HZ); - return; + + goto check_pending; } /* Throttle until kswapd wakes the process */ wait_event_killable(zone->zone_pgdat->pfmemalloc_wait, pfmemalloc_watermark_ok(pgdat)); + +check_pending: + if (fatal_signal_pending(current)) + return true; + +out: + return false; } unsigned long try_to_free_pages(struct zonelist *zonelist, int order, @@ -2273,13 +2291,12 @@ unsigned long try_to_free_pages(struct zonelist *zonelist, int order, .gfp_mask = sc.gfp_mask, }; - throttle_direct_reclaim(gfp_mask, zonelist, nodemask); - /* - * Do not enter reclaim if fatal signal is pending. 1 is returned so - * that the page allocator does not consider triggering OOM + * Do not enter reclaim if fatal signal was delivered while throttled. + * 1 is returned so that the page allocator does not OOM kill at this + * point. */ - if (fatal_signal_pending(current)) + if (throttle_direct_reclaim(gfp_mask, zonelist, nodemask)) return 1; trace_mm_vmscan_direct_reclaim_begin(order, -- cgit v0.10.2 From 4eff96dd5283a102e0c1cac95247090be74a38ed Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Mon, 26 Nov 2012 16:29:51 -0800 Subject: writeback: put unused inodes to LRU after writeback completion Commit 169ebd90131b ("writeback: Avoid iput() from flusher thread") removed iget-iput pair from inode writeback. As a side effect, inodes that are dirty during iput_final() call won't be ever added to inode LRU (iput_final() doesn't add dirty inodes to LRU and later when the inode is cleaned there's noone to add the inode there). Thus inodes are effectively unreclaimable until someone looks them up again. The practical effect of this bug is limited by the fact that inodes are pinned by a dentry for long enough that the inode gets cleaned. But still the bug can have nasty consequences leading up to OOM conditions under certain circumstances. Following can easily reproduce the problem: for (( i = 0; i < 1000; i++ )); do mkdir $i for (( j = 0; j < 1000; j++ )); do touch $i/$j echo 2 > /proc/sys/vm/drop_caches done done then one needs to run 'sync; ls -lR' to make inodes reclaimable again. We fix the issue by inserting unused clean inodes into the LRU after writeback finishes in inode_sync_complete(). Signed-off-by: Jan Kara Reported-by: OGAWA Hirofumi Cc: Al Viro Cc: OGAWA Hirofumi Cc: Wu Fengguang Cc: Dave Chinner Cc: [3.5+] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 51ea267..3e3422f 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -228,6 +228,8 @@ static void requeue_io(struct inode *inode, struct bdi_writeback *wb) static void inode_sync_complete(struct inode *inode) { inode->i_state &= ~I_SYNC; + /* If inode is clean an unused, put it into LRU now... */ + inode_add_lru(inode); /* Waiters must see I_SYNC cleared before being woken up */ smp_mb(); wake_up_bit(&inode->i_state, __I_SYNC); diff --git a/fs/inode.c b/fs/inode.c index b03c719..64999f1 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -408,6 +408,19 @@ static void inode_lru_list_add(struct inode *inode) spin_unlock(&inode->i_sb->s_inode_lru_lock); } +/* + * Add inode to LRU if needed (inode is unused and clean). + * + * Needs inode->i_lock held. + */ +void inode_add_lru(struct inode *inode) +{ + if (!(inode->i_state & (I_DIRTY | I_SYNC | I_FREEING | I_WILL_FREE)) && + !atomic_read(&inode->i_count) && inode->i_sb->s_flags & MS_ACTIVE) + inode_lru_list_add(inode); +} + + static void inode_lru_list_del(struct inode *inode) { spin_lock(&inode->i_sb->s_inode_lru_lock); @@ -1390,8 +1403,7 @@ static void iput_final(struct inode *inode) if (!drop && (sb->s_flags & MS_ACTIVE)) { inode->i_state |= I_REFERENCED; - if (!(inode->i_state & (I_DIRTY|I_SYNC))) - inode_lru_list_add(inode); + inode_add_lru(inode); spin_unlock(&inode->i_lock); return; } diff --git a/fs/internal.h b/fs/internal.h index 916b7cb..2f6af7f 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -110,6 +110,7 @@ extern int open_check_o_direct(struct file *f); * inode.c */ extern spinlock_t inode_sb_list_lock; +extern void inode_add_lru(struct inode *inode); /* * fs-writeback.c -- cgit v0.10.2 From 8ffeb9b0e6369135bf03a073514f571ef10606b9 Mon Sep 17 00:00:00 2001 From: Chuansheng Liu Date: Mon, 26 Nov 2012 16:29:54 -0800 Subject: watchdog: using u64 in get_sample_period() In get_sample_period(), unsigned long is not enough: watchdog_thresh * 2 * (NSEC_PER_SEC / 5) case1: watchdog_thresh is 10 by default, the sample value will be: 0xEE6B2800 case2: set watchdog_thresh is 20, the sample value will be: 0x1 DCD6 5000 In case2, we need use u64 to express the sample period. Otherwise, changing the threshold thru proc often can not be successful. Signed-off-by: liu chuansheng Acked-by: Don Zickus Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/kernel/watchdog.c b/kernel/watchdog.c index 9d4c8d5..dd4b80a 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -116,7 +116,7 @@ static unsigned long get_timestamp(int this_cpu) return cpu_clock(this_cpu) >> 30LL; /* 2^30 ~= 10^9 */ } -static unsigned long get_sample_period(void) +static u64 get_sample_period(void) { /* * convert watchdog_thresh from seconds to ns @@ -125,7 +125,7 @@ static unsigned long get_sample_period(void) * and hard thresholds) to increment before the * hardlockup detector generates a warning */ - return get_softlockup_thresh() * (NSEC_PER_SEC / 5); + return get_softlockup_thresh() * ((u64)NSEC_PER_SEC / 5); } /* Commands for resetting the watchdog */ -- cgit v0.10.2 From aa10990e028cac3d5e255711fb9fb47e00700e35 Mon Sep 17 00:00:00 2001 From: Darren Hart Date: Mon, 26 Nov 2012 16:29:56 -0800 Subject: futex: avoid wake_futex() for a PI futex_q Dave Jones reported a bug with futex_lock_pi() that his trinity test exposed. Sometime between queue_me() and taking the q.lock_ptr, the lock_ptr became NULL, resulting in a crash. While futex_wake() is careful to not call wake_futex() on futex_q's with a pi_state or an rt_waiter (which are either waiting for a futex_unlock_pi() or a PI futex_requeue()), futex_wake_op() and futex_requeue() do not perform the same test. Update futex_wake_op() and futex_requeue() to test for q.pi_state and q.rt_waiter and abort with -EINVAL if detected. To ensure any future breakage is caught, add a WARN() to wake_futex() if the same condition is true. This fix has seen 3 hours of testing with "trinity -c futex" on an x86_64 VM with 4 CPUS. [akpm@linux-foundation.org: tidy up the WARN()] Signed-off-by: Darren Hart Reported-by: Dave Jones Cc: Thomas Gleixner Cc: Peter Zijlstra Cc: Ingo Molnar Cc: John Kacur Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/kernel/futex.c b/kernel/futex.c index 20ef219..19eb089 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -843,6 +843,9 @@ static void wake_futex(struct futex_q *q) { struct task_struct *p = q->task; + if (WARN(q->pi_state || q->rt_waiter, "refusing to wake PI futex\n")) + return; + /* * We set q->lock_ptr = NULL _before_ we wake up the task. If * a non-futex wake up happens on another CPU then the task @@ -1078,6 +1081,10 @@ retry_private: plist_for_each_entry_safe(this, next, head, list) { if (match_futex (&this->key, &key1)) { + if (this->pi_state || this->rt_waiter) { + ret = -EINVAL; + goto out_unlock; + } wake_futex(this); if (++ret >= nr_wake) break; @@ -1090,6 +1097,10 @@ retry_private: op_ret = 0; plist_for_each_entry_safe(this, next, head, list) { if (match_futex (&this->key, &key2)) { + if (this->pi_state || this->rt_waiter) { + ret = -EINVAL; + goto out_unlock; + } wake_futex(this); if (++op_ret >= nr_wake2) break; @@ -1098,6 +1109,7 @@ retry_private: ret += op_ret; } +out_unlock: double_unlock_hb(hb1, hb2); out_put_keys: put_futex_key(&key2); @@ -1387,9 +1399,13 @@ retry_private: /* * FUTEX_WAIT_REQEUE_PI and FUTEX_CMP_REQUEUE_PI should always * be paired with each other and no other futex ops. + * + * We should never be requeueing a futex_q with a pi_state, + * which is awaiting a futex_unlock_pi(). */ if ((requeue_pi && !this->rt_waiter) || - (!requeue_pi && this->rt_waiter)) { + (!requeue_pi && this->rt_waiter) || + this->pi_state) { ret = -EINVAL; break; } -- cgit v0.10.2 From 6662c34fa9c60a48aaa5879cb229cd9a84de9c22 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Tue, 27 Nov 2012 08:54:36 -0800 Subject: x86-32: Unbreak booting on some 486 clones There appear to have been some 486 clones, including the "enhanced" version of Am486, which have CPUID but not CR4. These 486 clones had only the FPU flag, if any, unlike the Intel 486s with CPUID, which also had VME and therefore needed CR4. Therefore, look at the basic CPUID flags and require at least one bit other than bit 0 before we modify CR4. Thanks to Christian Ludloff of sandpile.org for confirming this as a problem. Signed-off-by: H. Peter Anvin diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S index 957a47a..4dac2f6 100644 --- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -292,8 +292,8 @@ default_entry: * be using the global pages. * * NOTE! If we are on a 486 we may have no cr4 at all! - * Specifically, cr4 exists if and only if CPUID exists, - * which in turn exists if and only if EFLAGS.ID exists. + * Specifically, cr4 exists if and only if CPUID exists + * and has flags other than the FPU flag set. */ movl $X86_EFLAGS_ID,%ecx pushl %ecx @@ -308,6 +308,11 @@ default_entry: testl %ecx,%eax jz 6f # No ID flag = no CPUID = no CR4 + movl $1,%eax + cpuid + andl $~1,%edx # Ignore CPUID.FPU + jz 6f # No flags or only CPUID.FPU = no CR4 + movl pa(mmu_cr4_features),%eax movl %eax,%cr4 -- cgit v0.10.2 From 3a98b8614312026d489e56c1d0e294a68e2aad77 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Mon, 26 Nov 2012 09:48:41 -0500 Subject: cifs: fix writeback race with file that is growing Commit eddb079deb4 created a regression in the writepages codepath. Previously, whenever it needed to check the size of the file, it did so by consulting the inode->i_size field directly. With that patch, the i_size was fetched once on entry into the writepages code and that value was used henceforth. If the file is changing size though (for instance, if someone is writing to it or has truncated it), then that value is likely to be wrong. This can lead to data corruption. Pages past the EOF at the time that the writepages call was issued may be silently dropped and ignored because cifs_writepages wrongly assumes that the file must have been truncated in the interim. Fix cifs_writepages to properly fetch the size from the inode->i_size field instead to properly account for this possibility. Original bug report is here: https://bugzilla.kernel.org/show_bug.cgi?id=50991 Reported-and-Tested-by: Maxim Britov Reviewed-by: Suresh Jayaraman Signed-off-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/file.c b/fs/cifs/file.c index edb25b4..70b6f4c 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -1794,7 +1794,6 @@ static int cifs_writepages(struct address_space *mapping, struct TCP_Server_Info *server; struct page *page; int rc = 0; - loff_t isize = i_size_read(mapping->host); /* * If wsize is smaller than the page cache size, default to writing @@ -1899,7 +1898,7 @@ retry: */ set_page_writeback(page); - if (page_offset(page) >= isize) { + if (page_offset(page) >= i_size_read(mapping->host)) { done = true; unlock_page(page); end_page_writeback(page); @@ -1932,7 +1931,8 @@ retry: wdata->offset = page_offset(wdata->pages[0]); wdata->pagesz = PAGE_CACHE_SIZE; wdata->tailsz = - min(isize - page_offset(wdata->pages[nr_pages - 1]), + min(i_size_read(mapping->host) - + page_offset(wdata->pages[nr_pages - 1]), (loff_t)PAGE_CACHE_SIZE); wdata->bytes = ((nr_pages - 1) * PAGE_CACHE_SIZE) + wdata->tailsz; -- cgit v0.10.2 From fc58acdbf153f12783b80cb19c04cc9de121b518 Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Tue, 27 Nov 2012 16:12:29 -0500 Subject: radeon: fix pll/ctrc mapping on dce2 and dce3 hardware This fix black screen on resume issue that some people are experiencing. There is a bug in the atombios code regarding pll/crtc mapping. The atombios code reverse the logic for the pll and crtc mapping. agd5f: drop unnecessary crtc id check, cc stable in case we miss 3.7. This fixes the root cause that was worked around by commits: drm/radeon: allocate PPLLs from low to high drm/radeon/dce3: switch back to old pll allocation order for discrete Signed-off-by: Jerome Glisse Reviewed-by: Alex Deucher Cc: stable@vger.kernel.org diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 3bce029..24d932f 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -1696,42 +1696,22 @@ static int radeon_atom_pick_pll(struct drm_crtc *crtc) return ATOM_PPLL2; DRM_ERROR("unable to allocate a PPLL\n"); return ATOM_PPLL_INVALID; - } else if (ASIC_IS_AVIVO(rdev)) { - /* in DP mode, the DP ref clock can come from either PPLL - * depending on the asic: - * DCE3: PPLL1 or PPLL2 - */ - if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) { - /* use the same PPLL for all DP monitors */ - pll = radeon_get_shared_dp_ppll(crtc); - if (pll != ATOM_PPLL_INVALID) - return pll; - } else { - /* use the same PPLL for all monitors with the same clock */ - pll = radeon_get_shared_nondp_ppll(crtc); - if (pll != ATOM_PPLL_INVALID) - return pll; - } - /* all other cases */ - pll_in_use = radeon_get_pll_use_mask(crtc); - /* the order shouldn't matter here, but we probably - * need this until we have atomic modeset - */ - if (rdev->flags & RADEON_IS_IGP) { - if (!(pll_in_use & (1 << ATOM_PPLL1))) - return ATOM_PPLL1; - if (!(pll_in_use & (1 << ATOM_PPLL2))) - return ATOM_PPLL2; - } else { - if (!(pll_in_use & (1 << ATOM_PPLL2))) - return ATOM_PPLL2; - if (!(pll_in_use & (1 << ATOM_PPLL1))) - return ATOM_PPLL1; - } - DRM_ERROR("unable to allocate a PPLL\n"); - return ATOM_PPLL_INVALID; } else { /* on pre-R5xx asics, the crtc to pll mapping is hardcoded */ + /* some atombios (observed in some DCE2/DCE3) code have a bug, + * the matching btw pll and crtc is done through + * PCLK_CRTC[1|2]_CNTL (0x480/0x484) but atombios code use the + * pll (1 or 2) to select which register to write. ie if using + * pll1 it will use PCLK_CRTC1_CNTL (0x480) and if using pll2 + * it will use PCLK_CRTC2_CNTL (0x484), it then use crtc id to + * choose which value to write. Which is reverse order from + * register logic. So only case that works is when pllid is + * same as crtcid or when both pll and crtc are enabled and + * both use same clock. + * + * So just return crtc id as if crtc and pll were hard linked + * together even if they aren't + */ return radeon_crtc->crtc_id; } } -- cgit v0.10.2 From 42709efb3a47524c6252e1bdc85e205f7bc356fb Mon Sep 17 00:00:00 2001 From: Prarit Bhargava Date: Tue, 16 Oct 2012 09:02:27 -0400 Subject: i7core_edac: fix panic when accessing sysfs files The i7core_edac addrmatch_dev and chancounts_dev have sysfs files associated with them. The sysfs files, however, are coded so that the parent device is is the mci device. This is incorrect and the mci struct should be obtained through the addrmatch_dev and chancounts_dev device's private data field which is populated in i7core_create_sysfs_devices(). Signed-off-by: Prarit Bhargava Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c index 3672101..10c8c00 100644 --- a/drivers/edac/i7core_edac.c +++ b/drivers/edac/i7core_edac.c @@ -816,7 +816,7 @@ static ssize_t i7core_inject_store_##param( \ struct device_attribute *mattr, \ const char *data, size_t count) \ { \ - struct mem_ctl_info *mci = to_mci(dev); \ + struct mem_ctl_info *mci = dev_get_drvdata(dev); \ struct i7core_pvt *pvt; \ long value; \ int rc; \ @@ -845,7 +845,7 @@ static ssize_t i7core_inject_show_##param( \ struct device_attribute *mattr, \ char *data) \ { \ - struct mem_ctl_info *mci = to_mci(dev); \ + struct mem_ctl_info *mci = dev_get_drvdata(dev); \ struct i7core_pvt *pvt; \ \ pvt = mci->pvt_info; \ @@ -1052,7 +1052,7 @@ static ssize_t i7core_show_counter_##param( \ struct device_attribute *mattr, \ char *data) \ { \ - struct mem_ctl_info *mci = to_mci(dev); \ + struct mem_ctl_info *mci = dev_get_drvdata(dev); \ struct i7core_pvt *pvt = mci->pvt_info; \ \ edac_dbg(1, "\n"); \ -- cgit v0.10.2 From ea3aacf5f22c1002cac97985354658072232e280 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 23 Nov 2012 18:55:30 +0100 Subject: ARM: 7586/1: sp804: set cpumask to cpu_possible_mask for clock event device The SP804 driver statically initialises the cpumask of the clock event device to be cpu_all_mask, which is derived from the compile-time constant NR_CPUS. This breaks SMP_ON_UP systems where the interrupt controller handling the sp804 doesn't have the irq_set_affinity callback on the irq_chip, because the common timer code fails to identify the device as cpu-local and ends up treating it as a broadcast device instead. This patch fixes the problem by using cpu_possible_mask at runtime, which will correctly represent the possible CPUs when SMP_ON_UP is being used. Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/common/timer-sp.c b/arch/arm/common/timer-sp.c index df13a3f..9d2d3ba 100644 --- a/arch/arm/common/timer-sp.c +++ b/arch/arm/common/timer-sp.c @@ -162,7 +162,6 @@ static struct clock_event_device sp804_clockevent = { .set_mode = sp804_set_mode, .set_next_event = sp804_set_next_event, .rating = 300, - .cpumask = cpu_all_mask, }; static struct irqaction sp804_timer_irq = { @@ -185,6 +184,7 @@ void __init sp804_clockevents_init(void __iomem *base, unsigned int irq, clkevt_reload = DIV_ROUND_CLOSEST(rate, HZ); evt->name = name; evt->irq = irq; + evt->cpumask = cpu_possible_mask; setup_irq(irq, &sp804_timer_irq); clockevents_config_and_register(evt, rate, 0xf, 0xffffffff); -- cgit v0.10.2 From 4b05a1c74d1cfae37cf6ff293ee928350f031418 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Tue, 27 Nov 2012 22:59:52 -0500 Subject: percpu-rwsem: use synchronize_sched_expedited Use synchronize_sched_expedited() instead of synchronize_sched() to improve mount speed. This patch improves mount time from 0.500s to 0.013s for Jeff's test-case. Signed-off-by: Mikulas Patocka Reported-and-tested-by: Jeff Chua Signed-off-by: Linus Torvalds diff --git a/include/linux/percpu-rwsem.h b/include/linux/percpu-rwsem.h index 250a4ac..bd1e860 100644 --- a/include/linux/percpu-rwsem.h +++ b/include/linux/percpu-rwsem.h @@ -13,7 +13,7 @@ struct percpu_rw_semaphore { }; #define light_mb() barrier() -#define heavy_mb() synchronize_sched() +#define heavy_mb() synchronize_sched_expedited() static inline void percpu_down_read(struct percpu_rw_semaphore *p) { @@ -51,7 +51,7 @@ static inline void percpu_down_write(struct percpu_rw_semaphore *p) { mutex_lock(&p->mtx); p->locked = true; - synchronize_sched(); /* make sure that all readers exit the rcu_read_lock_sched region */ + synchronize_sched_expedited(); /* make sure that all readers exit the rcu_read_lock_sched region */ while (__percpu_count(p->counters)) msleep(1); heavy_mb(); /* C, between read of p->counter and write to data, paired with B */ -- cgit v0.10.2 From c772aa92b6deb2857d4b39a5cc3bd3679cc5f4a6 Mon Sep 17 00:00:00 2001 From: Pavel Shilovsky Date: Wed, 28 Nov 2012 15:27:54 +0400 Subject: CIFS: Fix wrong buffer pointer usage in smb_set_file_info Commit 6bdf6dbd662176c0da5c3ac8ed10ac94e7776c85 caused a regression in setattr codepath that leads to files with wrong attributes. Signed-off-by: Pavel Shilovsky Reviewed-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c index 56cc4be..34cea27 100644 --- a/fs/cifs/smb1ops.c +++ b/fs/cifs/smb1ops.c @@ -766,7 +766,6 @@ smb_set_file_info(struct inode *inode, const char *full_path, struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); struct tcon_link *tlink = NULL; struct cifs_tcon *tcon; - FILE_BASIC_INFO info_buf; /* if the file is already open for write, just use that fileid */ open_file = find_writable_file(cinode, true); @@ -817,7 +816,7 @@ smb_set_file_info(struct inode *inode, const char *full_path, netpid = current->tgid; set_via_filehandle: - rc = CIFSSMBSetFileInfo(xid, tcon, &info_buf, netfid, netpid); + rc = CIFSSMBSetFileInfo(xid, tcon, buf, netfid, netpid); if (!rc) cinode->cifsAttrs = le32_to_cpu(buf->Attributes); -- cgit v0.10.2 From be364c8c0f17a3dd42707b5a090b318028538eb9 Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Tue, 27 Nov 2012 04:01:46 +0000 Subject: sctp: fix memory leak in sctp_datamsg_from_user() when copy from user space fails Trinity (the syscall fuzzer) discovered a memory leak in SCTP, reproducible e.g. with the sendto() syscall by passing invalid user space pointer in the second argument: #include #include #include int main(void) { int fd; struct sockaddr_in sa; fd = socket(AF_INET, SOCK_STREAM, 132 /*IPPROTO_SCTP*/); if (fd < 0) return 1; memset(&sa, 0, sizeof(sa)); sa.sin_family = AF_INET; sa.sin_addr.s_addr = inet_addr("127.0.0.1"); sa.sin_port = htons(11111); sendto(fd, NULL, 1, 0, (struct sockaddr *)&sa, sizeof(sa)); return 0; } As far as I can tell, the leak has been around since ~2003. Signed-off-by: Tommi Rantala Acked-by: Vlad Yasevich Signed-off-by: David S. Miller diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c index 7c2df9c..f2aebdb 100644 --- a/net/sctp/chunk.c +++ b/net/sctp/chunk.c @@ -284,7 +284,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc, goto errout; err = sctp_user_addto_chunk(chunk, offset, len, msgh->msg_iov); if (err < 0) - goto errout; + goto errout_chunk_free; offset += len; @@ -324,7 +324,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc, __skb_pull(chunk->skb, (__u8 *)chunk->chunk_hdr - (__u8 *)chunk->skb->data); if (err < 0) - goto errout; + goto errout_chunk_free; sctp_datamsg_assign(msg, chunk); list_add_tail(&chunk->frag_list, &msg->chunks); @@ -332,6 +332,9 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc, return msg; +errout_chunk_free: + sctp_chunk_free(chunk); + errout: list_for_each_safe(pos, temp, &msg->chunks) { list_del_init(pos); -- cgit v0.10.2 From 6e51fe7572590d8d86e93b547fab6693d305fd0d Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Thu, 22 Nov 2012 03:23:16 +0000 Subject: sctp: fix -ENOMEM result with invalid user space pointer in sendto() syscall Consider the following program, that sets the second argument to the sendto() syscall incorrectly: #include #include #include int main(void) { int fd; struct sockaddr_in sa; fd = socket(AF_INET, SOCK_STREAM, 132 /*IPPROTO_SCTP*/); if (fd < 0) return 1; memset(&sa, 0, sizeof(sa)); sa.sin_family = AF_INET; sa.sin_addr.s_addr = inet_addr("127.0.0.1"); sa.sin_port = htons(11111); sendto(fd, NULL, 1, 0, (struct sockaddr *)&sa, sizeof(sa)); return 0; } We get -ENOMEM: $ strace -e sendto ./demo sendto(3, NULL, 1, 0, {sa_family=AF_INET, sin_port=htons(11111), sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ENOMEM (Cannot allocate memory) Propagate the error code from sctp_user_addto_chunk(), so that we will tell user space what actually went wrong: $ strace -e sendto ./demo sendto(3, NULL, 1, 0, {sa_family=AF_INET, sin_port=htons(11111), sin_addr=inet_addr("127.0.0.1")}, 16) = -1 EFAULT (Bad address) Noticed while running Trinity (the syscall fuzzer). Signed-off-by: Tommi Rantala Acked-by: Vlad Yasevich Acked-by: Neil Horman Signed-off-by: David S. Miller diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c index f2aebdb..69ce21e 100644 --- a/net/sctp/chunk.c +++ b/net/sctp/chunk.c @@ -183,7 +183,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc, msg = sctp_datamsg_new(GFP_KERNEL); if (!msg) - return NULL; + return ERR_PTR(-ENOMEM); /* Note: Calculate this outside of the loop, so that all fragments * have the same expiration. @@ -280,8 +280,11 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc, chunk = sctp_make_datafrag_empty(asoc, sinfo, len, frag, 0); - if (!chunk) + if (!chunk) { + err = -ENOMEM; goto errout; + } + err = sctp_user_addto_chunk(chunk, offset, len, msgh->msg_iov); if (err < 0) goto errout_chunk_free; @@ -315,8 +318,10 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc, chunk = sctp_make_datafrag_empty(asoc, sinfo, over, frag, 0); - if (!chunk) + if (!chunk) { + err = -ENOMEM; goto errout; + } err = sctp_user_addto_chunk(chunk, offset, over,msgh->msg_iov); @@ -342,7 +347,7 @@ errout: sctp_chunk_free(chunk); } sctp_datamsg_put(msg); - return NULL; + return ERR_PTR(err); } /* Check whether this message has expired. */ diff --git a/net/sctp/socket.c b/net/sctp/socket.c index a60d1f8..406d957 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -1915,8 +1915,8 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk, /* Break the message into multiple chunks of maximum size. */ datamsg = sctp_datamsg_from_user(asoc, sinfo, msg, msg_len); - if (!datamsg) { - err = -ENOMEM; + if (IS_ERR(datamsg)) { + err = PTR_ERR(datamsg); goto out_free; } -- cgit v0.10.2 From 92d64c261e77cb2a6117887617e2a629fea6b67c Mon Sep 17 00:00:00 2001 From: Schoch Christian Date: Wed, 28 Nov 2012 05:18:29 +0000 Subject: sctp: Error in calculation of RTTvar The calculation of RTTVAR involves the subtraction of two unsigned numbers which may causes rollover and results in very high values of RTTVAR when RTT > SRTT. With this patch it is possible to set RTOmin = 1 to get the minimum of RTO at 4 times the clock granularity. Change Notes: v2) *Replaced abs() by abs64() and long by __s64, changed patch description. Signed-off-by: Christian Schoch CC: Vlad Yasevich CC: Sridhar Samudrala CC: Neil Horman CC: linux-sctp@vger.kernel.org Acked-by: Vlad Yasevich Acked-by: Neil Horman Signed-off-by: David S. Miller diff --git a/net/sctp/transport.c b/net/sctp/transport.c index 953c21e..206cf52 100644 --- a/net/sctp/transport.c +++ b/net/sctp/transport.c @@ -331,7 +331,7 @@ void sctp_transport_update_rto(struct sctp_transport *tp, __u32 rtt) * 1/8, rto_alpha would be expressed as 3. */ tp->rttvar = tp->rttvar - (tp->rttvar >> net->sctp.rto_beta) - + ((abs(tp->srtt - rtt)) >> net->sctp.rto_beta); + + (((__u32)abs64((__s64)tp->srtt - (__s64)rtt)) >> net->sctp.rto_beta); tp->srtt = tp->srtt - (tp->srtt >> net->sctp.rto_alpha) + (rtt >> net->sctp.rto_alpha); } else { -- cgit v0.10.2 From 29bb8f4a8d94d017700d09ee643483b0708cbd7b Mon Sep 17 00:00:00 2001 From: Amir Vadai Date: Wed, 28 Nov 2012 13:43:15 +0200 Subject: net/mlx4_en: Can set maxrate only for TC0 Had a typo in memcpy. Signed-off-by: Amir Vadai Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c b/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c index 5d367958..b799ab12 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c @@ -237,7 +237,7 @@ static int mlx4_en_dcbnl_ieee_setmaxrate(struct net_device *dev, if (err) return err; - memcpy(priv->maxrate, tmp, sizeof(*priv->maxrate)); + memcpy(priv->maxrate, tmp, sizeof(priv->maxrate)); return 0; } -- cgit v0.10.2 From ba695af067f9cadfec84457ac06b44e3fa849b15 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Sun, 25 Nov 2012 06:03:59 +0000 Subject: net: qmi_wwan: add Huawei E173 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The Huawei E173 is a QMI/wwan device which normally appear as 12d1:1436 in Linux. The descriptors displayed in that mode will be picked up by cdc_ether. But the modem has another mode with a different device ID and a slightly different set of descriptors. This is the mode used by Windows like this: 3Modem: USB\VID_12D1&PID_140C&MI_00\6&3A1D2012&0&0000 Networkcard: USB\VID_12D1&PID_140C&MI_01\6&3A1D2012&0&0001 Appli.Inter: USB\VID_12D1&PID_140C&MI_02\6&3A1D2012&0&0002 PC UI Inter: USB\VID_12D1&PID_140C&MI_03\6&3A1D2012&0&0003 Reported-by: Thomas Schäfer Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 3b566fa..1ea91f4 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -385,6 +385,7 @@ static const struct usb_device_id products[] = { }, /* 3. Combined interface devices matching on interface number */ + {QMI_FIXED_INTF(0x12d1, 0x140c, 1)}, /* Huawei E173 */ {QMI_FIXED_INTF(0x19d2, 0x0002, 1)}, {QMI_FIXED_INTF(0x19d2, 0x0012, 1)}, {QMI_FIXED_INTF(0x19d2, 0x0017, 3)}, -- cgit v0.10.2 From c3b2c2581988d304127c2aa218430b5fca88ce56 Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Mon, 26 Nov 2012 04:16:44 +0000 Subject: irda: irttp: fix memory leak in irttp_open_tsap() error path Cleanup the memory we allocated earlier in irttp_open_tsap() when we hit this error path. The leak goes back to at least 1da177e4 ("Linux-2.6.12-rc2"). Discovered with Trinity (the syscall fuzzer). Signed-off-by: Tommi Rantala Signed-off-by: David S. Miller diff --git a/net/irda/irttp.c b/net/irda/irttp.c index 1002e33..ae43c62 100644 --- a/net/irda/irttp.c +++ b/net/irda/irttp.c @@ -441,6 +441,7 @@ struct tsap_cb *irttp_open_tsap(__u8 stsap_sel, int credit, notify_t *notify) lsap = irlmp_open_lsap(stsap_sel, &ttp_notify, 0); if (lsap == NULL) { IRDA_DEBUG(0, "%s: unable to allocate LSAP!!\n", __func__); + __irttp_close_tsap(self); return NULL; } -- cgit v0.10.2 From bd97120fc3d1a11f3124c7c9ba1d91f51829eb85 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 26 Nov 2012 05:57:27 +0000 Subject: vhost: fix length for cross region descriptor If a single descriptor crosses a region, the second chunk length should be decremented by size translated so far, instead it includes the full descriptor length. Signed-off-by: Michael S. Tsirkin Acked-by: Jason Wang Signed-off-by: David S. Miller diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 99ac2cb..dedaf81 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -1076,7 +1076,7 @@ static int translate_desc(struct vhost_dev *dev, u64 addr, u32 len, } _iov = iov + ret; size = reg->memory_size - addr + reg->guest_phys_addr; - _iov->iov_len = min((u64)len, size); + _iov->iov_len = min((u64)len - s, size); _iov->iov_base = (void __user *)(unsigned long) (reg->userspace_addr + addr - reg->guest_phys_addr); s += size; -- cgit v0.10.2 From fcdc90b025e69a38f9ec2742df099c7ddaa331fe Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 27 Nov 2012 07:29:35 +0000 Subject: atm: forever loop loading ambassador firmware There was a forever loop introduced here when we converted this to request_firmware() back in 2008. Signed-off-by: Dan Carpenter Acked-by: Chas Williams Signed-off-by: David S. Miller diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c index 89b30f3..ff7bb8a 100644 --- a/drivers/atm/ambassador.c +++ b/drivers/atm/ambassador.c @@ -1961,6 +1961,7 @@ static int __devinit ucode_init (loader_block * lb, amb_dev * dev) { res = loader_verify(lb, dev, rec); if (res) break; + rec = ihex_next_binrec(rec); } release_firmware(fw); if (!res) -- cgit v0.10.2 From 3ed7147189d2fbe8ac6da95db2fd9d6d52f53ce9 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Wed, 28 Nov 2012 06:13:10 +0000 Subject: team: fix hw_features setup Do this in the same way bonding does. This fixed setup resolves performance issues when using some cards with certain offloading. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index d44cca3..ad86660 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -1794,10 +1794,12 @@ static void team_setup(struct net_device *dev) dev->features |= NETIF_F_LLTX; dev->features |= NETIF_F_GRO; - dev->hw_features = NETIF_F_HW_VLAN_TX | + dev->hw_features = TEAM_VLAN_FEATURES | + NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER; + dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_HW_CSUM); dev->features |= dev->hw_features; } -- cgit v0.10.2 From de0eed2813ce42b8e0320a86cbe373266c904044 Mon Sep 17 00:00:00 2001 From: Mark Salter Date: Wed, 28 Nov 2012 14:16:05 -0500 Subject: c6x: remove internal kernel symbols from exported setup.h Some internal kernel symbols were referenced in the exported setup.h. This splits out the internal bits from the exported uapi bits. Signed-off-by: Mark Salter diff --git a/arch/c6x/include/asm/setup.h b/arch/c6x/include/asm/setup.h new file mode 100644 index 0000000..ecead15 --- /dev/null +++ b/arch/c6x/include/asm/setup.h @@ -0,0 +1,33 @@ +/* + * Port on Texas Instruments TMS320C6x architecture + * + * Copyright (C) 2004, 2009, 2010 2011 Texas Instruments Incorporated + * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef _ASM_C6X_SETUP_H +#define _ASM_C6X_SETUP_H + +#include + +#ifndef __ASSEMBLY__ +extern char c6x_command_line[COMMAND_LINE_SIZE]; + +extern int c6x_add_memory(phys_addr_t start, unsigned long size); + +extern unsigned long ram_start; +extern unsigned long ram_end; + +extern int c6x_num_cores; +extern unsigned int c6x_silicon_rev; +extern unsigned int c6x_devstat; +extern unsigned char c6x_fuse_mac[6]; + +extern void machine_init(unsigned long dt_ptr); +extern void time_init(void); + +#endif /* !__ASSEMBLY__ */ +#endif /* _ASM_C6X_SETUP_H */ diff --git a/arch/c6x/include/uapi/asm/setup.h b/arch/c6x/include/uapi/asm/setup.h index a01e318..ad9ac97 100644 --- a/arch/c6x/include/uapi/asm/setup.h +++ b/arch/c6x/include/uapi/asm/setup.h @@ -1,33 +1,6 @@ -/* - * Port on Texas Instruments TMS320C6x architecture - * - * Copyright (C) 2004, 2009, 2010 2011 Texas Instruments Incorporated - * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#ifndef _ASM_C6X_SETUP_H -#define _ASM_C6X_SETUP_H +#ifndef _UAPI_ASM_C6X_SETUP_H +#define _UAPI_ASM_C6X_SETUP_H #define COMMAND_LINE_SIZE 1024 -#ifndef __ASSEMBLY__ -extern char c6x_command_line[COMMAND_LINE_SIZE]; - -extern int c6x_add_memory(phys_addr_t start, unsigned long size); - -extern unsigned long ram_start; -extern unsigned long ram_end; - -extern int c6x_num_cores; -extern unsigned int c6x_silicon_rev; -extern unsigned int c6x_devstat; -extern unsigned char c6x_fuse_mac[6]; - -extern void machine_init(unsigned long dt_ptr); -extern void time_init(void); - -#endif /* !__ASSEMBLY__ */ -#endif /* _ASM_C6X_SETUP_H */ +#endif /* _UAPI_ASM_C6X_SETUP_H */ -- cgit v0.10.2 From 93bbd0c087eb299e0fe11c59d340932180c082b5 Mon Sep 17 00:00:00 2001 From: Mark Salter Date: Wed, 28 Nov 2012 14:22:41 -0500 Subject: c6x: use generic kvm_para.h Signed-off-by: Mark Salter diff --git a/arch/c6x/include/uapi/asm/Kbuild b/arch/c6x/include/uapi/asm/Kbuild index c312b42..e9bc2b2 100644 --- a/arch/c6x/include/uapi/asm/Kbuild +++ b/arch/c6x/include/uapi/asm/Kbuild @@ -1,6 +1,8 @@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += kvm_para.h + header-y += byteorder.h header-y += kvm_para.h header-y += ptrace.h diff --git a/arch/c6x/include/uapi/asm/kvm_para.h b/arch/c6x/include/uapi/asm/kvm_para.h deleted file mode 100644 index 14fab8f..0000000 --- a/arch/c6x/include/uapi/asm/kvm_para.h +++ /dev/null @@ -1 +0,0 @@ -#include -- cgit v0.10.2 From 9436d5c32b1ac8d4efdbc933611b5e699908854e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 10 Nov 2012 01:15:42 -0500 Subject: um: get_safe_registers() should be done in flush_thread(), not start_thread() ... or we'll end up buggering the results of ELF_PLAT_INIT() Signed-off-by: Al Viro diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c index 3a8ece7..0d7103c 100644 --- a/arch/um/kernel/exec.c +++ b/arch/um/kernel/exec.c @@ -32,13 +32,14 @@ void flush_thread(void) "err = %d\n", ret); force_sig(SIGKILL, current); } + get_safe_registers(current_pt_regs()->regs.gp, + current_pt_regs()->regs.fp); __switch_mm(¤t->mm->context.id); } void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp) { - get_safe_registers(regs->regs.gp, regs->regs.fp); PT_REGS_IP(regs) = eip; PT_REGS_SP(regs) = esp; current->ptrace &= ~PT_DTRACE; -- cgit v0.10.2 From d26654e5f9cd27815ab5bc8148c826f3b960396c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 20 Sep 2012 15:49:09 -0400 Subject: openrisk: fix altstack switching on sigreturn do_sigaltstack() expects _userland_ address, TYVM... Signed-off-by: Al Viro diff --git a/arch/openrisc/kernel/signal.c b/arch/openrisc/kernel/signal.c index 3011029..ddedc8a 100644 --- a/arch/openrisc/kernel/signal.c +++ b/arch/openrisc/kernel/signal.c @@ -84,7 +84,6 @@ asmlinkage long _sys_rt_sigreturn(struct pt_regs *regs) { struct rt_sigframe *frame = (struct rt_sigframe __user *)regs->sp; sigset_t set; - stack_t st; /* * Since we stacked the signal on a dword boundary, @@ -104,11 +103,10 @@ asmlinkage long _sys_rt_sigreturn(struct pt_regs *regs) if (restore_sigcontext(regs, &frame->uc.uc_mcontext)) goto badframe; - if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st))) - goto badframe; /* It is more difficult to avoid calling this function than to call it and ignore errors. */ - do_sigaltstack(&st, NULL, regs->sp); + if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT) + goto badframe; return regs->gpr[11]; -- cgit v0.10.2 From 9dc87c7b5b0a2db407e086f45cf08ca78208cc16 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 20 Sep 2012 16:38:34 -0400 Subject: sh64: fix altstack switching on sigreturn incidentally, declaring a local variable as __user (!) to make sparse STFU is really sick. Especially since sparse had been 100% right - it *is* a bug. Signed-off-by: Al Viro diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c index 2385381..d867cd9 100644 --- a/arch/sh/kernel/signal_64.c +++ b/arch/sh/kernel/signal_64.c @@ -347,7 +347,6 @@ asmlinkage int sys_rt_sigreturn(unsigned long r2, unsigned long r3, { struct rt_sigframe __user *frame = (struct rt_sigframe __user *) (long) REF_REG_SP; sigset_t set; - stack_t __user st; long long ret; /* Always make any pending restarted system calls return -EINTR */ @@ -365,11 +364,10 @@ asmlinkage int sys_rt_sigreturn(unsigned long r2, unsigned long r3, goto badframe; regs->pc -= 4; - if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st))) - goto badframe; /* It is more difficult to avoid calling this function than to call it and ignore errors. */ - do_sigaltstack(&st, NULL, REF_REG_SP); + if (do_sigaltstack(&frame->uc.uc_stack, NULL, REF_REG_SP) == -EFAULT) + goto badframe; return (int) ret; -- cgit v0.10.2 From afd3f96dc34357584763c2dc453192c78a9dbce0 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 20 Nov 2012 10:36:17 -0500 Subject: score: do_sigaltstack() expects a userland pointer... Signed-off-by: Al Viro diff --git a/arch/score/kernel/signal.c b/arch/score/kernel/signal.c index c268bbf..02353bd 100644 --- a/arch/score/kernel/signal.c +++ b/arch/score/kernel/signal.c @@ -148,7 +148,6 @@ score_rt_sigreturn(struct pt_regs *regs) { struct rt_sigframe __user *frame; sigset_t set; - stack_t st; int sig; /* Always make any pending restarted system calls return -EINTR */ @@ -168,12 +167,10 @@ score_rt_sigreturn(struct pt_regs *regs) else if (sig) force_sig(sig, current); - if (__copy_from_user(&st, &frame->rs_uc.uc_stack, sizeof(st))) - goto badframe; - /* It is more difficult to avoid calling this function than to call it and ignore errors. */ - do_sigaltstack((stack_t __user *)&st, NULL, regs->regs[0]); + if (do_sigaltstack(&frame->rs_uc.uc_stack, NULL, regs->regs[0]) == -EFAULT) + goto badframe; regs->is_syscall = 0; __asm__ __volatile__( -- cgit v0.10.2 From 02232f8d2b22708f0651dc515544f4a7ef1e0224 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 20 Nov 2012 10:41:11 -0500 Subject: microblaze: rt_sigreturn is too trigger-happy about sigaltstack errors Signed-off-by: Al Viro diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c index 3847e5b..3903e3d 100644 --- a/arch/microblaze/kernel/signal.c +++ b/arch/microblaze/kernel/signal.c @@ -111,7 +111,7 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs) /* It is more difficult to avoid calling this function than to call it and ignore errors. */ - if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->r1)) + if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->r1) == -EFAULT) goto badframe; return rval; -- cgit v0.10.2 From dab55bbafdb491ce2c3f2d7136e54101e948b911 Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Mon, 12 Nov 2012 11:13:51 +0200 Subject: remoteproc: fix error path of ->find_vqs Eliminate an erroneous invocation of rproc_shutdown inside the error path of rproc_virtio_find_vqs. Reported-by: Ido Yariv Signed-off-by: Ohad Ben-Cohen diff --git a/drivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c index e7a4780..9e198e5 100644 --- a/drivers/remoteproc/remoteproc_virtio.c +++ b/drivers/remoteproc/remoteproc_virtio.c @@ -120,15 +120,11 @@ static struct virtqueue *rp_find_vq(struct virtio_device *vdev, return vq; } -static void rproc_virtio_del_vqs(struct virtio_device *vdev) +static void __rproc_virtio_del_vqs(struct virtio_device *vdev) { struct virtqueue *vq, *n; - struct rproc *rproc = vdev_to_rproc(vdev); struct rproc_vring *rvring; - /* power down the remote processor before deleting vqs */ - rproc_shutdown(rproc); - list_for_each_entry_safe(vq, n, &vdev->vqs, list) { rvring = vq->priv; rvring->vq = NULL; @@ -137,6 +133,16 @@ static void rproc_virtio_del_vqs(struct virtio_device *vdev) } } +static void rproc_virtio_del_vqs(struct virtio_device *vdev) +{ + struct rproc *rproc = vdev_to_rproc(vdev); + + /* power down the remote processor before deleting vqs */ + rproc_shutdown(rproc); + + __rproc_virtio_del_vqs(vdev); +} + static int rproc_virtio_find_vqs(struct virtio_device *vdev, unsigned nvqs, struct virtqueue *vqs[], vq_callback_t *callbacks[], @@ -163,7 +169,7 @@ static int rproc_virtio_find_vqs(struct virtio_device *vdev, unsigned nvqs, return 0; error: - rproc_virtio_del_vqs(vdev); + __rproc_virtio_del_vqs(vdev); return ret; } -- cgit v0.10.2 From fbb0c41b814d497c656fc7be9e35456f139cb2fb Mon Sep 17 00:00:00 2001 From: "nikolay@redhat.com" Date: Thu, 29 Nov 2012 01:31:31 +0000 Subject: bonding: fix miimon and arp_interval delayed work race conditions First I would give three observations which will be used later. Observation 1: if (delayed_work_pending(wq)) cancel_delayed_work(wq) This usage is wrong because the pending bit is cleared just before the work's fn is executed and if the function re-arms itself we might end up with the work still running. It's safe to call cancel_delayed_work_sync() even if the work is not queued at all. Observation 2: Use of INIT_DELAYED_WORK() Work needs to be initialized only once prior to (de/en)queueing. Observation 3: IFF_UP is set only after ndo_open is called Related race conditions: 1. Race between bonding_store_miimon() and bonding_store_arp_interval() Because of Obs.1 we can end up having both works enqueued. 2. Multiple races with INIT_DELAYED_WORK() Since the works are not protected by anything between INIT_DELAYED_WORK() and calls to (en/de)queue it is possible for races between the following functions: (races are also possible between the calls to INIT_DELAYED_WORK() and workqueue code) bonding_store_miimon() - bonding_store_arp_interval(), bond_close(), bond_open(), enqueued functions bonding_store_arp_interval() - bonding_store_miimon(), bond_close(), bond_open(), enqueued functions 3. By Obs.1 we need to change bond_cancel_all() Bugs 1 and 2 are fixed by moving all work initializations in bond_open which by Obs. 2 and Obs. 3 and the fact that we make sure that all works are cancelled in bond_close(), is guaranteed not to have any work enqueued. Also RTNL lock is now acquired in bonding_store_miimon/arp_interval so they can't race with bond_close and bond_open. The opposing work is cancelled only if the IFF_UP flag is set and it is cancelled unconditionally. The opposing work is already cancelled if the interface is down so no need to cancel it again. This way we don't need new synchronizations for the bonding workqueue. These bugs (and fixes) are tied together and belong in the same patch. Note: I have left 1 line intentionally over 80 characters (84) because I didn't like how it looks broken down. If you'd prefer it otherwise, then simply break it. v2: Make description text < 75 columns Signed-off-by: Nikolay Aleksandrov Signed-off-by: Jay Vosburgh Signed-off-by: David S. Miller diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 5f5b69f..1445c7d 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -3459,6 +3459,28 @@ static int bond_xmit_hash_policy_l34(struct sk_buff *skb, int count) /*-------------------------- Device entry points ----------------------------*/ +static void bond_work_init_all(struct bonding *bond) +{ + INIT_DELAYED_WORK(&bond->mcast_work, + bond_resend_igmp_join_requests_delayed); + INIT_DELAYED_WORK(&bond->alb_work, bond_alb_monitor); + INIT_DELAYED_WORK(&bond->mii_work, bond_mii_monitor); + if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) + INIT_DELAYED_WORK(&bond->arp_work, bond_activebackup_arp_mon); + else + INIT_DELAYED_WORK(&bond->arp_work, bond_loadbalance_arp_mon); + INIT_DELAYED_WORK(&bond->ad_work, bond_3ad_state_machine_handler); +} + +static void bond_work_cancel_all(struct bonding *bond) +{ + cancel_delayed_work_sync(&bond->mii_work); + cancel_delayed_work_sync(&bond->arp_work); + cancel_delayed_work_sync(&bond->alb_work); + cancel_delayed_work_sync(&bond->ad_work); + cancel_delayed_work_sync(&bond->mcast_work); +} + static int bond_open(struct net_device *bond_dev) { struct bonding *bond = netdev_priv(bond_dev); @@ -3481,41 +3503,27 @@ static int bond_open(struct net_device *bond_dev) } read_unlock(&bond->lock); - INIT_DELAYED_WORK(&bond->mcast_work, bond_resend_igmp_join_requests_delayed); + bond_work_init_all(bond); if (bond_is_lb(bond)) { /* bond_alb_initialize must be called before the timer * is started. */ - if (bond_alb_initialize(bond, (bond->params.mode == BOND_MODE_ALB))) { - /* something went wrong - fail the open operation */ + if (bond_alb_initialize(bond, (bond->params.mode == BOND_MODE_ALB))) return -ENOMEM; - } - - INIT_DELAYED_WORK(&bond->alb_work, bond_alb_monitor); queue_delayed_work(bond->wq, &bond->alb_work, 0); } - if (bond->params.miimon) { /* link check interval, in milliseconds. */ - INIT_DELAYED_WORK(&bond->mii_work, bond_mii_monitor); + if (bond->params.miimon) /* link check interval, in milliseconds. */ queue_delayed_work(bond->wq, &bond->mii_work, 0); - } if (bond->params.arp_interval) { /* arp interval, in milliseconds. */ - if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) - INIT_DELAYED_WORK(&bond->arp_work, - bond_activebackup_arp_mon); - else - INIT_DELAYED_WORK(&bond->arp_work, - bond_loadbalance_arp_mon); - queue_delayed_work(bond->wq, &bond->arp_work, 0); if (bond->params.arp_validate) bond->recv_probe = bond_arp_rcv; } if (bond->params.mode == BOND_MODE_8023AD) { - INIT_DELAYED_WORK(&bond->ad_work, bond_3ad_state_machine_handler); queue_delayed_work(bond->wq, &bond->ad_work, 0); /* register to receive LACPDUs */ bond->recv_probe = bond_3ad_lacpdu_recv; @@ -3530,34 +3538,10 @@ static int bond_close(struct net_device *bond_dev) struct bonding *bond = netdev_priv(bond_dev); write_lock_bh(&bond->lock); - bond->send_peer_notif = 0; - write_unlock_bh(&bond->lock); - if (bond->params.miimon) { /* link check interval, in milliseconds. */ - cancel_delayed_work_sync(&bond->mii_work); - } - - if (bond->params.arp_interval) { /* arp interval, in milliseconds. */ - cancel_delayed_work_sync(&bond->arp_work); - } - - switch (bond->params.mode) { - case BOND_MODE_8023AD: - cancel_delayed_work_sync(&bond->ad_work); - break; - case BOND_MODE_TLB: - case BOND_MODE_ALB: - cancel_delayed_work_sync(&bond->alb_work); - break; - default: - break; - } - - if (delayed_work_pending(&bond->mcast_work)) - cancel_delayed_work_sync(&bond->mcast_work); - + bond_work_cancel_all(bond); if (bond_is_lb(bond)) { /* Must be called only after all * slaves have been released @@ -4436,26 +4420,6 @@ static void bond_setup(struct net_device *bond_dev) bond_dev->features |= bond_dev->hw_features; } -static void bond_work_cancel_all(struct bonding *bond) -{ - if (bond->params.miimon && delayed_work_pending(&bond->mii_work)) - cancel_delayed_work_sync(&bond->mii_work); - - if (bond->params.arp_interval && delayed_work_pending(&bond->arp_work)) - cancel_delayed_work_sync(&bond->arp_work); - - if (bond->params.mode == BOND_MODE_ALB && - delayed_work_pending(&bond->alb_work)) - cancel_delayed_work_sync(&bond->alb_work); - - if (bond->params.mode == BOND_MODE_8023AD && - delayed_work_pending(&bond->ad_work)) - cancel_delayed_work_sync(&bond->ad_work); - - if (delayed_work_pending(&bond->mcast_work)) - cancel_delayed_work_sync(&bond->mcast_work); -} - /* * Destroy a bonding device. * Must be under rtnl_lock when this function is called. diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index ef8d2a0..3327a07 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -513,6 +513,8 @@ static ssize_t bonding_store_arp_interval(struct device *d, int new_value, ret = count; struct bonding *bond = to_bond(d); + if (!rtnl_trylock()) + return restart_syscall(); if (sscanf(buf, "%d", &new_value) != 1) { pr_err("%s: no arp_interval value specified.\n", bond->dev->name); @@ -539,10 +541,6 @@ static ssize_t bonding_store_arp_interval(struct device *d, pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", bond->dev->name, bond->dev->name); bond->params.miimon = 0; - if (delayed_work_pending(&bond->mii_work)) { - cancel_delayed_work(&bond->mii_work); - flush_workqueue(bond->wq); - } } if (!bond->params.arp_targets[0]) { pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", @@ -554,19 +552,12 @@ static ssize_t bonding_store_arp_interval(struct device *d, * timer will get fired off when the open function * is called. */ - if (!delayed_work_pending(&bond->arp_work)) { - if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) - INIT_DELAYED_WORK(&bond->arp_work, - bond_activebackup_arp_mon); - else - INIT_DELAYED_WORK(&bond->arp_work, - bond_loadbalance_arp_mon); - - queue_delayed_work(bond->wq, &bond->arp_work, 0); - } + cancel_delayed_work_sync(&bond->mii_work); + queue_delayed_work(bond->wq, &bond->arp_work, 0); } out: + rtnl_unlock(); return ret; } static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, @@ -962,6 +953,8 @@ static ssize_t bonding_store_miimon(struct device *d, int new_value, ret = count; struct bonding *bond = to_bond(d); + if (!rtnl_trylock()) + return restart_syscall(); if (sscanf(buf, "%d", &new_value) != 1) { pr_err("%s: no miimon value specified.\n", bond->dev->name); @@ -993,10 +986,6 @@ static ssize_t bonding_store_miimon(struct device *d, bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; } - if (delayed_work_pending(&bond->arp_work)) { - cancel_delayed_work(&bond->arp_work); - flush_workqueue(bond->wq); - } } if (bond->dev->flags & IFF_UP) { @@ -1005,15 +994,12 @@ static ssize_t bonding_store_miimon(struct device *d, * timer will get fired off when the open function * is called. */ - if (!delayed_work_pending(&bond->mii_work)) { - INIT_DELAYED_WORK(&bond->mii_work, - bond_mii_monitor); - queue_delayed_work(bond->wq, - &bond->mii_work, 0); - } + cancel_delayed_work_sync(&bond->arp_work); + queue_delayed_work(bond->wq, &bond->mii_work, 0); } } out: + rtnl_unlock(); return ret; } static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, -- cgit v0.10.2 From 90fb6250c509cabd425b7ae4524053dba2e27e2c Mon Sep 17 00:00:00 2001 From: "nikolay@redhat.com" Date: Thu, 29 Nov 2012 01:34:06 +0000 Subject: bonding: make arp_ip_target parameter checks consistent with sysfs The module can be loaded with arp_ip_target="255.255.255.255" which makes it impossible to remove as the function in sysfs checks for that value, so we make the parameter checks consistent with sysfs. v2: Fix formatting v3: Make description text < 75 columns Signed-off-by: Nikolay Aleksandrov Signed-off-by: Jay Vosburgh Signed-off-by: David S. Miller diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 1445c7d..a7d4735 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -4670,12 +4670,13 @@ static int bond_check_params(struct bond_params *params) arp_ip_count++) { /* not complete check, but should be good enough to catch mistakes */ - if (!isdigit(arp_ip_target[arp_ip_count][0])) { + __be32 ip = in_aton(arp_ip_target[arp_ip_count]); + if (!isdigit(arp_ip_target[arp_ip_count][0]) || + ip == 0 || ip == htonl(INADDR_BROADCAST)) { pr_warning("Warning: bad arp_ip_target module parameter (%s), ARP monitoring will not be performed\n", arp_ip_target[arp_ip_count]); arp_interval = 0; } else { - __be32 ip = in_aton(arp_ip_target[arp_ip_count]); arp_target[arp_ip_count] = ip; } } -- cgit v0.10.2 From e196c0e579902f42cf72414461fb034e5a1ffbf7 Mon Sep 17 00:00:00 2001 From: "nikolay@redhat.com" Date: Thu, 29 Nov 2012 01:37:59 +0000 Subject: bonding: fix race condition in bonding_store_slaves_active Race between bonding_store_slaves_active() and slave manipulation functions. The bond_for_each_slave use in bonding_store_slaves_active() is not protected by any synchronization mechanism. NULL pointer dereference is easy to reach. Fixed by acquiring the bond->lock for the slave walk. v2: Make description text < 75 columns Signed-off-by: Nikolay Aleksandrov Signed-off-by: Jay Vosburgh Signed-off-by: David S. Miller diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 3327a07..1877ed7 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -1568,6 +1568,7 @@ static ssize_t bonding_store_slaves_active(struct device *d, goto out; } + read_lock(&bond->lock); bond_for_each_slave(bond, slave, i) { if (!bond_is_active_slave(slave)) { if (new_value) @@ -1576,6 +1577,7 @@ static ssize_t bonding_store_slaves_active(struct device *d, slave->inactive = 1; } } + read_unlock(&bond->lock); out: return ret; } -- cgit v0.10.2 From 45bce8f3e3436bbe2e03dd2b076abdce79ffabb7 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 29 Nov 2012 10:21:43 -0800 Subject: fs/buffer.c: make block-size be per-page and protected by the page lock This makes the buffer size handling be a per-page thing, which allows us to not have to worry about locking too much when changing the buffer size. If a page doesn't have buffers, we still need to read the block size from the inode, but we can do that with ACCESS_ONCE(), so that even if the size is changing, we get a consistent value. This doesn't convert all functions - many of the buffer functions are used purely by filesystems, which in turn results in the buffer size being fixed at mount-time. So they don't have the same consistency issues that the raw device access can have. Signed-off-by: Linus Torvalds diff --git a/fs/buffer.c b/fs/buffer.c index b5f0442..28a74ff 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -1553,6 +1553,28 @@ void unmap_underlying_metadata(struct block_device *bdev, sector_t block) EXPORT_SYMBOL(unmap_underlying_metadata); /* + * Size is a power-of-two in the range 512..PAGE_SIZE, + * and the case we care about most is PAGE_SIZE. + * + * So this *could* possibly be written with those + * constraints in mind (relevant mostly if some + * architecture has a slow bit-scan instruction) + */ +static inline int block_size_bits(unsigned int blocksize) +{ + return ilog2(blocksize); +} + +static struct buffer_head *create_page_buffers(struct page *page, struct inode *inode, unsigned int b_state) +{ + BUG_ON(!PageLocked(page)); + + if (!page_has_buffers(page)) + create_empty_buffers(page, 1 << ACCESS_ONCE(inode->i_blkbits), b_state); + return page_buffers(page); +} + +/* * NOTE! All mapped/uptodate combinations are valid: * * Mapped Uptodate Meaning @@ -1589,19 +1611,13 @@ static int __block_write_full_page(struct inode *inode, struct page *page, sector_t block; sector_t last_block; struct buffer_head *bh, *head; - const unsigned blocksize = 1 << inode->i_blkbits; + unsigned int blocksize, bbits; int nr_underway = 0; int write_op = (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : WRITE); - BUG_ON(!PageLocked(page)); - - last_block = (i_size_read(inode) - 1) >> inode->i_blkbits; - - if (!page_has_buffers(page)) { - create_empty_buffers(page, blocksize, + head = create_page_buffers(page, inode, (1 << BH_Dirty)|(1 << BH_Uptodate)); - } /* * Be very careful. We have no exclusion from __set_page_dirty_buffers @@ -1613,9 +1629,12 @@ static int __block_write_full_page(struct inode *inode, struct page *page, * handle that here by just cleaning them. */ - block = (sector_t)page->index << (PAGE_CACHE_SHIFT - inode->i_blkbits); - head = page_buffers(page); bh = head; + blocksize = bh->b_size; + bbits = block_size_bits(blocksize); + + block = (sector_t)page->index << (PAGE_CACHE_SHIFT - bbits); + last_block = (i_size_read(inode) - 1) >> bbits; /* * Get all the dirty buffers mapped to disk addresses and @@ -1806,12 +1825,10 @@ int __block_write_begin(struct page *page, loff_t pos, unsigned len, BUG_ON(to > PAGE_CACHE_SIZE); BUG_ON(from > to); - blocksize = 1 << inode->i_blkbits; - if (!page_has_buffers(page)) - create_empty_buffers(page, blocksize, 0); - head = page_buffers(page); + head = create_page_buffers(page, inode, 0); + blocksize = head->b_size; + bbits = block_size_bits(blocksize); - bbits = inode->i_blkbits; block = (sector_t)page->index << (PAGE_CACHE_SHIFT - bbits); for(bh = head, block_start = 0; bh != head || !block_start; @@ -1881,11 +1898,11 @@ static int __block_commit_write(struct inode *inode, struct page *page, unsigned blocksize; struct buffer_head *bh, *head; - blocksize = 1 << inode->i_blkbits; + bh = head = page_buffers(page); + blocksize = bh->b_size; - for(bh = head = page_buffers(page), block_start = 0; - bh != head || !block_start; - block_start=block_end, bh = bh->b_this_page) { + block_start = 0; + do { block_end = block_start + blocksize; if (block_end <= from || block_start >= to) { if (!buffer_uptodate(bh)) @@ -1895,7 +1912,10 @@ static int __block_commit_write(struct inode *inode, struct page *page, mark_buffer_dirty(bh); } clear_buffer_new(bh); - } + + block_start = block_end; + bh = bh->b_this_page; + } while (bh != head); /* * If this is a partial write which happened to make all buffers @@ -2020,7 +2040,6 @@ EXPORT_SYMBOL(generic_write_end); int block_is_partially_uptodate(struct page *page, read_descriptor_t *desc, unsigned long from) { - struct inode *inode = page->mapping->host; unsigned block_start, block_end, blocksize; unsigned to; struct buffer_head *bh, *head; @@ -2029,13 +2048,13 @@ int block_is_partially_uptodate(struct page *page, read_descriptor_t *desc, if (!page_has_buffers(page)) return 0; - blocksize = 1 << inode->i_blkbits; + head = page_buffers(page); + blocksize = head->b_size; to = min_t(unsigned, PAGE_CACHE_SIZE - from, desc->count); to = from + to; if (from < blocksize && to > PAGE_CACHE_SIZE - blocksize) return 0; - head = page_buffers(page); bh = head; block_start = 0; do { @@ -2068,18 +2087,16 @@ int block_read_full_page(struct page *page, get_block_t *get_block) struct inode *inode = page->mapping->host; sector_t iblock, lblock; struct buffer_head *bh, *head, *arr[MAX_BUF_PER_PAGE]; - unsigned int blocksize; + unsigned int blocksize, bbits; int nr, i; int fully_mapped = 1; - BUG_ON(!PageLocked(page)); - blocksize = 1 << inode->i_blkbits; - if (!page_has_buffers(page)) - create_empty_buffers(page, blocksize, 0); - head = page_buffers(page); + head = create_page_buffers(page, inode, 0); + blocksize = head->b_size; + bbits = block_size_bits(blocksize); - iblock = (sector_t)page->index << (PAGE_CACHE_SHIFT - inode->i_blkbits); - lblock = (i_size_read(inode)+blocksize-1) >> inode->i_blkbits; + iblock = (sector_t)page->index << (PAGE_CACHE_SHIFT - bbits); + lblock = (i_size_read(inode)+blocksize-1) >> bbits; bh = head; nr = 0; i = 0; -- cgit v0.10.2 From 1e8b33328a5407b447ff80953655a47014a6dcb9 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 29 Nov 2012 10:49:50 -0800 Subject: blockdev: remove bd_block_size_semaphore again This reverts the block-device direct access code to the previous unlocked code, now that fs/buffer.c no longer needs external locking. With this, fs/block_dev.c is back to the original version, apart from a whitespace cleanup that I didn't want to revert. Signed-off-by: Linus Torvalds diff --git a/drivers/char/raw.c b/drivers/char/raw.c index 0bb207e..54a3a6d 100644 --- a/drivers/char/raw.c +++ b/drivers/char/raw.c @@ -285,7 +285,7 @@ static long raw_ctl_compat_ioctl(struct file *file, unsigned int cmd, static const struct file_operations raw_fops = { .read = do_sync_read, - .aio_read = blkdev_aio_read, + .aio_read = generic_file_aio_read, .write = do_sync_write, .aio_write = blkdev_aio_write, .fsync = blkdev_fsync, diff --git a/fs/block_dev.c b/fs/block_dev.c index 1a1e5e3..47a949d 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -116,8 +116,6 @@ EXPORT_SYMBOL(invalidate_bdev); int set_blocksize(struct block_device *bdev, int size) { - struct address_space *mapping; - /* Size must be a power of two, and between 512 and PAGE_SIZE */ if (size > PAGE_SIZE || size < 512 || !is_power_of_2(size)) return -EINVAL; @@ -126,19 +124,6 @@ int set_blocksize(struct block_device *bdev, int size) if (size < bdev_logical_block_size(bdev)) return -EINVAL; - /* Prevent starting I/O or mapping the device */ - percpu_down_write(&bdev->bd_block_size_semaphore); - - /* Check that the block device is not memory mapped */ - mapping = bdev->bd_inode->i_mapping; - mutex_lock(&mapping->i_mmap_mutex); - if (mapping_mapped(mapping)) { - mutex_unlock(&mapping->i_mmap_mutex); - percpu_up_write(&bdev->bd_block_size_semaphore); - return -EBUSY; - } - mutex_unlock(&mapping->i_mmap_mutex); - /* Don't change the size if it is same as current */ if (bdev->bd_block_size != size) { sync_blockdev(bdev); @@ -146,9 +131,6 @@ int set_blocksize(struct block_device *bdev, int size) bdev->bd_inode->i_blkbits = blksize_bits(size); kill_bdev(bdev); } - - percpu_up_write(&bdev->bd_block_size_semaphore); - return 0; } @@ -459,12 +441,6 @@ static struct inode *bdev_alloc_inode(struct super_block *sb) struct bdev_inode *ei = kmem_cache_alloc(bdev_cachep, GFP_KERNEL); if (!ei) return NULL; - - if (unlikely(percpu_init_rwsem(&ei->bdev.bd_block_size_semaphore))) { - kmem_cache_free(bdev_cachep, ei); - return NULL; - } - return &ei->vfs_inode; } @@ -473,8 +449,6 @@ static void bdev_i_callback(struct rcu_head *head) struct inode *inode = container_of(head, struct inode, i_rcu); struct bdev_inode *bdi = BDEV_I(inode); - percpu_free_rwsem(&bdi->bdev.bd_block_size_semaphore); - kmem_cache_free(bdev_cachep, bdi); } @@ -1593,22 +1567,6 @@ static long block_ioctl(struct file *file, unsigned cmd, unsigned long arg) return blkdev_ioctl(bdev, mode, cmd, arg); } -ssize_t blkdev_aio_read(struct kiocb *iocb, const struct iovec *iov, - unsigned long nr_segs, loff_t pos) -{ - ssize_t ret; - struct block_device *bdev = I_BDEV(iocb->ki_filp->f_mapping->host); - - percpu_down_read(&bdev->bd_block_size_semaphore); - - ret = generic_file_aio_read(iocb, iov, nr_segs, pos); - - percpu_up_read(&bdev->bd_block_size_semaphore); - - return ret; -} -EXPORT_SYMBOL_GPL(blkdev_aio_read); - /* * Write data to the block device. Only intended for the block device itself * and the raw driver which basically is a fake block device. @@ -1620,16 +1578,12 @@ ssize_t blkdev_aio_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos) { struct file *file = iocb->ki_filp; - struct block_device *bdev = I_BDEV(file->f_mapping->host); struct blk_plug plug; ssize_t ret; BUG_ON(iocb->ki_pos != pos); blk_start_plug(&plug); - - percpu_down_read(&bdev->bd_block_size_semaphore); - ret = __generic_file_aio_write(iocb, iov, nr_segs, &iocb->ki_pos); if (ret > 0 || ret == -EIOCBQUEUED) { ssize_t err; @@ -1638,62 +1592,11 @@ ssize_t blkdev_aio_write(struct kiocb *iocb, const struct iovec *iov, if (err < 0 && ret > 0) ret = err; } - - percpu_up_read(&bdev->bd_block_size_semaphore); - blk_finish_plug(&plug); - return ret; } EXPORT_SYMBOL_GPL(blkdev_aio_write); -static int blkdev_mmap(struct file *file, struct vm_area_struct *vma) -{ - int ret; - struct block_device *bdev = I_BDEV(file->f_mapping->host); - - percpu_down_read(&bdev->bd_block_size_semaphore); - - ret = generic_file_mmap(file, vma); - - percpu_up_read(&bdev->bd_block_size_semaphore); - - return ret; -} - -static ssize_t blkdev_splice_read(struct file *file, loff_t *ppos, - struct pipe_inode_info *pipe, size_t len, - unsigned int flags) -{ - ssize_t ret; - struct block_device *bdev = I_BDEV(file->f_mapping->host); - - percpu_down_read(&bdev->bd_block_size_semaphore); - - ret = generic_file_splice_read(file, ppos, pipe, len, flags); - - percpu_up_read(&bdev->bd_block_size_semaphore); - - return ret; -} - -static ssize_t blkdev_splice_write(struct pipe_inode_info *pipe, - struct file *file, loff_t *ppos, size_t len, - unsigned int flags) -{ - ssize_t ret; - struct block_device *bdev = I_BDEV(file->f_mapping->host); - - percpu_down_read(&bdev->bd_block_size_semaphore); - - ret = generic_file_splice_write(pipe, file, ppos, len, flags); - - percpu_up_read(&bdev->bd_block_size_semaphore); - - return ret; -} - - /* * Try to release a page associated with block device when the system * is under memory pressure. @@ -1724,16 +1627,16 @@ const struct file_operations def_blk_fops = { .llseek = block_llseek, .read = do_sync_read, .write = do_sync_write, - .aio_read = blkdev_aio_read, + .aio_read = generic_file_aio_read, .aio_write = blkdev_aio_write, - .mmap = blkdev_mmap, + .mmap = generic_file_mmap, .fsync = blkdev_fsync, .unlocked_ioctl = block_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = compat_blkdev_ioctl, #endif - .splice_read = blkdev_splice_read, - .splice_write = blkdev_splice_write, + .splice_read = generic_file_splice_read, + .splice_write = generic_file_splice_write, }; int ioctl_by_bdev(struct block_device *bdev, unsigned cmd, unsigned long arg) diff --git a/include/linux/fs.h b/include/linux/fs.h index b33cfc9..44f288e 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -462,8 +462,6 @@ struct block_device { int bd_fsfreeze_count; /* Mutex for freeze */ struct mutex bd_fsfreeze_mutex; - /* A semaphore that prevents I/O while block size is being changed */ - struct percpu_rw_semaphore bd_block_size_semaphore; }; /* @@ -2379,8 +2377,6 @@ extern int generic_segment_checks(const struct iovec *iov, unsigned long *nr_segs, size_t *count, int access_flags); /* fs/block_dev.c */ -extern ssize_t blkdev_aio_read(struct kiocb *iocb, const struct iovec *iov, - unsigned long nr_segs, loff_t pos); extern ssize_t blkdev_aio_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos); extern int blkdev_fsync(struct file *filp, loff_t start, loff_t end, -- cgit v0.10.2 From ab73857e354ab9e317613cba7db714e2c12c6547 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 29 Nov 2012 12:27:00 -0800 Subject: direct-io: don't read inode->i_blkbits multiple times Since directio can work on a raw block device, and the block size of the device can change under it, we need to do the same thing that fs/buffer.c now does: read the block size a single time, using ACCESS_ONCE(). Reading it multiple times can get different results, which will then confuse the code because it actually encodes the i_blksize in relationship to the underlying logical blocksize. Signed-off-by: Linus Torvalds diff --git a/fs/direct-io.c b/fs/direct-io.c index f86c720..cf5b44b 100644 --- a/fs/direct-io.c +++ b/fs/direct-io.c @@ -540,6 +540,7 @@ static int get_more_blocks(struct dio *dio, struct dio_submit *sdio, sector_t fs_endblk; /* Into file, in filesystem-sized blocks */ unsigned long fs_count; /* Number of filesystem-sized blocks */ int create; + unsigned int i_blkbits = sdio->blkbits + sdio->blkfactor; /* * If there was a memory error and we've overwritten all the @@ -554,7 +555,7 @@ static int get_more_blocks(struct dio *dio, struct dio_submit *sdio, fs_count = fs_endblk - fs_startblk + 1; map_bh->b_state = 0; - map_bh->b_size = fs_count << dio->inode->i_blkbits; + map_bh->b_size = fs_count << i_blkbits; /* * For writes inside i_size on a DIO_SKIP_HOLES filesystem we @@ -1053,7 +1054,8 @@ do_blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode, int seg; size_t size; unsigned long addr; - unsigned blkbits = inode->i_blkbits; + unsigned i_blkbits = ACCESS_ONCE(inode->i_blkbits); + unsigned blkbits = i_blkbits; unsigned blocksize_mask = (1 << blkbits) - 1; ssize_t retval = -EINVAL; loff_t end = offset; @@ -1149,7 +1151,7 @@ do_blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode, dio->inode = inode; dio->rw = rw; sdio.blkbits = blkbits; - sdio.blkfactor = inode->i_blkbits - blkbits; + sdio.blkfactor = i_blkbits - blkbits; sdio.block_in_file = offset >> blkbits; sdio.get_block = get_block; -- cgit v0.10.2 From bbec0270bdd887f96377065ee38b8848b5afa395 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 29 Nov 2012 12:31:52 -0800 Subject: blkdev_max_block: make private to fs/buffer.c We really don't want to look at the block size for the raw block device accesses in fs/block-dev.c, because it may be changing from under us. So get rid of the max_block logic entirely, since the caller should already have done it anyway. That leaves the only user of this function in fs/buffer.c, so move the whole function there and make it static. Signed-off-by: Linus Torvalds diff --git a/fs/block_dev.c b/fs/block_dev.c index 47a949d..a1e09b4 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -70,19 +70,6 @@ static void bdev_inode_switch_bdi(struct inode *inode, spin_unlock(&dst->wb.list_lock); } -sector_t blkdev_max_block(struct block_device *bdev) -{ - sector_t retval = ~((sector_t)0); - loff_t sz = i_size_read(bdev->bd_inode); - - if (sz) { - unsigned int size = block_size(bdev); - unsigned int sizebits = blksize_bits(size); - retval = (sz >> sizebits); - } - return retval; -} - /* Kill _all_ buffers and pagecache , dirty or not.. */ void kill_bdev(struct block_device *bdev) { @@ -163,52 +150,12 @@ static int blkdev_get_block(struct inode *inode, sector_t iblock, struct buffer_head *bh, int create) { - if (iblock >= blkdev_max_block(I_BDEV(inode))) { - if (create) - return -EIO; - - /* - * for reads, we're just trying to fill a partial page. - * return a hole, they will have to call get_block again - * before they can fill it, and they will get -EIO at that - * time - */ - return 0; - } bh->b_bdev = I_BDEV(inode); bh->b_blocknr = iblock; set_buffer_mapped(bh); return 0; } -static int -blkdev_get_blocks(struct inode *inode, sector_t iblock, - struct buffer_head *bh, int create) -{ - sector_t end_block = blkdev_max_block(I_BDEV(inode)); - unsigned long max_blocks = bh->b_size >> inode->i_blkbits; - - if ((iblock + max_blocks) > end_block) { - max_blocks = end_block - iblock; - if ((long)max_blocks <= 0) { - if (create) - return -EIO; /* write fully beyond EOF */ - /* - * It is a read which is fully beyond EOF. We return - * a !buffer_mapped buffer - */ - max_blocks = 0; - } - } - - bh->b_bdev = I_BDEV(inode); - bh->b_blocknr = iblock; - bh->b_size = max_blocks << inode->i_blkbits; - if (max_blocks) - set_buffer_mapped(bh); - return 0; -} - static ssize_t blkdev_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, loff_t offset, unsigned long nr_segs) @@ -217,7 +164,7 @@ blkdev_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, struct inode *inode = file->f_mapping->host; return __blockdev_direct_IO(rw, iocb, inode, I_BDEV(inode), iov, offset, - nr_segs, blkdev_get_blocks, NULL, NULL, 0); + nr_segs, blkdev_get_block, NULL, NULL, 0); } int __sync_blockdev(struct block_device *bdev, int wait) diff --git a/fs/buffer.c b/fs/buffer.c index 28a74ff..3586fb0 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -911,6 +911,18 @@ link_dev_buffers(struct page *page, struct buffer_head *head) attach_page_buffers(page, head); } +static sector_t blkdev_max_block(struct block_device *bdev, unsigned int size) +{ + sector_t retval = ~((sector_t)0); + loff_t sz = i_size_read(bdev->bd_inode); + + if (sz) { + unsigned int sizebits = blksize_bits(size); + retval = (sz >> sizebits); + } + return retval; +} + /* * Initialise the state of a blockdev page's buffers. */ @@ -921,7 +933,7 @@ init_page_buffers(struct page *page, struct block_device *bdev, struct buffer_head *head = page_buffers(page); struct buffer_head *bh = head; int uptodate = PageUptodate(page); - sector_t end_block = blkdev_max_block(I_BDEV(bdev->bd_inode)); + sector_t end_block = blkdev_max_block(I_BDEV(bdev->bd_inode), size); do { if (!buffer_mapped(bh)) { diff --git a/include/linux/fs.h b/include/linux/fs.h index 44f288e..75fe9a1 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2047,7 +2047,6 @@ extern void unregister_blkdev(unsigned int, const char *); extern struct block_device *bdget(dev_t); extern struct block_device *bdgrab(struct block_device *bdev); extern void bd_set_size(struct block_device *, loff_t size); -extern sector_t blkdev_max_block(struct block_device *bdev); extern void bd_forget(struct inode *inode); extern void bdput(struct block_device *); extern void invalidate_bdev(struct block_device *); -- cgit v0.10.2 From 696199f8ccf7fc6d17ef89c296ad3b6c78c52d9c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Nov 2012 22:00:51 -0500 Subject: don't do blind d_drop() in nfs_prime_dcache() Signed-off-by: Al Viro diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index ce8cb92..99489cf 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -450,7 +450,8 @@ void nfs_prime_dcache(struct dentry *parent, struct nfs_entry *entry) nfs_refresh_inode(dentry->d_inode, entry->fattr); goto out; } else { - d_drop(dentry); + if (d_invalidate(dentry) != 0) + goto out; dput(dentry); } } -- cgit v0.10.2 From c44600c9d1de64314c2bd58103f15acb53e10073 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Nov 2012 22:04:36 -0500 Subject: nfs_lookup_revalidate(): fix a leak We are leaking fattr and fhandle if we decide that dentry is not to be invalidated, after all (e.g. happens to be a mountpoint). Just free both before that... Signed-off-by: Al Viro diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 99489cf..b9e66b7 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1101,6 +1101,8 @@ out_set_verifier: out_zap_parent: nfs_zap_caches(dir); out_bad: + nfs_free_fattr(fattr); + nfs_free_fhandle(fhandle); nfs_mark_for_revalidate(dir); if (inode && S_ISDIR(inode->i_mode)) { /* Purge readdir caches. */ @@ -1113,8 +1115,6 @@ out_zap_parent: shrink_dcache_parent(dentry); } d_drop(dentry); - nfs_free_fattr(fattr); - nfs_free_fhandle(fhandle); dput(parent); dfprintk(LOOKUPCACHE, "NFS: %s(%s/%s) is invalid\n", __func__, dentry->d_parent->d_name.name, -- cgit v0.10.2 From 0903a0c8491c1e987dfc6eb294199a36760398bc Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Nov 2012 22:11:06 -0500 Subject: cifs: get rid of blind d_drop() in readdir Signed-off-by: Al Viro diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index f9b5d3d..1c576e8 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -86,14 +86,17 @@ cifs_readdir_lookup(struct dentry *parent, struct qstr *name, dentry = d_lookup(parent, name); if (dentry) { + int err; inode = dentry->d_inode; /* update inode in place if i_ino didn't change */ if (inode && CIFS_I(inode)->uniqueid == fattr->cf_uniqueid) { cifs_fattr_to_inode(inode, fattr); return dentry; } - d_drop(dentry); + err = d_invalidate(dentry); dput(dentry); + if (err) + return NULL; } dentry = d_alloc(parent, name); -- cgit v0.10.2 From 21d8a15ac333b05f1fecdf9fdc30996be2e11d60 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Nov 2012 22:17:21 -0500 Subject: lookup_one_len: don't accept . and .. Signed-off-by: Al Viro diff --git a/fs/namei.c b/fs/namei.c index 937f9d5..5f4cdf3 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2131,6 +2131,11 @@ struct dentry *lookup_one_len(const char *name, struct dentry *base, int len) if (!len) return ERR_PTR(-EACCES); + if (unlikely(name[0] == '.')) { + if (len < 2 || (len == 2 && name[1] == '.')) + return ERR_PTR(-EACCES); + } + while (len--) { c = *(const unsigned char *)name++; if (c == '/' || c == '\0') -- cgit v0.10.2 From a77cfcb429ed98845a4e4df72473b8f37acd890b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 29 Nov 2012 22:57:33 -0500 Subject: fix off-by-one in argument passed by iterate_fd() to callbacks Noticed by Pavel Roskin; the thing in his patch I disagree with was compensating for that shite in callbacks instead of fixing it once in the iterator itself. Signed-off-by: Al Viro diff --git a/fs/file.c b/fs/file.c index 7cb71b9..eff2316 100644 --- a/fs/file.c +++ b/fs/file.c @@ -994,16 +994,18 @@ int iterate_fd(struct files_struct *files, unsigned n, const void *p) { struct fdtable *fdt; - struct file *file; int res = 0; if (!files) return 0; spin_lock(&files->file_lock); - fdt = files_fdtable(files); - while (!res && n < fdt->max_fds) { - file = rcu_dereference_check_fdtable(files, fdt->fd[n++]); - if (file) - res = f(p, file, n); + for (fdt = files_fdtable(files); n < fdt->max_fds; n++) { + struct file *file; + file = rcu_dereference_check_fdtable(files, fdt->fd[n]); + if (!file) + continue; + res = f(p, file, n); + if (res) + break; } spin_unlock(&files->file_lock); return res; -- cgit v0.10.2 From 58d002097b98664e2a39cc708f30d11549d870b2 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Thu, 29 Nov 2012 13:54:20 -0800 Subject: mm: compaction: fix return value of capture_free_page() Commit ef6c5be658f6 ("fix incorrect NR_FREE_PAGES accounting (appears like memory leak)") fixes a NR_FREE_PAGE accounting leak but missed the return value which was also missed by this reviewer until today. That return value is used by compaction when adding pages to a list of isolated free pages and without this follow-up fix, there is a risk of free list corruption. Signed-off-by: Mel Gorman Cc: Dave Hansen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 9287157..7e208f0 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1422,7 +1422,7 @@ int capture_free_page(struct page *page, int alloc_order, int migratetype) } } - return 1UL << order; + return 1UL << alloc_order; } /* -- cgit v0.10.2 From ae64ffcac35de0db628ba9631edf8ff34c5cd7ac Mon Sep 17 00:00:00 2001 From: Jianguo Wu Date: Thu, 29 Nov 2012 13:54:21 -0800 Subject: mm/vmemmap: fix wrong use of virt_to_page I enable CONFIG_DEBUG_VIRTUAL and CONFIG_SPARSEMEM_VMEMMAP, when doing memory hotremove, there is a kernel BUG at arch/x86/mm/physaddr.c:20. It is caused by free_section_usemap()->virt_to_page(), virt_to_page() is only used for kernel direct mapping address, but sparse-vmemmap uses vmemmap address, so it is going wrong here. ------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:20! invalid opcode: 0000 [#1] SMP Modules linked in: acpihp_drv acpihp_slot edd cpufreq_conservative cpufreq_userspace cpufreq_powersave acpi_cpufreq mperf fuse vfat fat loop dm_mod coretemp kvm crc32c_intel ipv6 ixgbe igb iTCO_wdt i7core_edac edac_core pcspkr iTCO_vendor_support ioatdma microcode joydev sr_mod i2c_i801 dca lpc_ich mfd_core mdio tpm_tis i2c_core hid_generic tpm cdrom sg tpm_bios rtc_cmos button ext3 jbd mbcache usbhid hid uhci_hcd ehci_hcd usbcore usb_common sd_mod crc_t10dif processor thermal_sys hwmon scsi_dh_alua scsi_dh_hp_sw scsi_dh_rdac scsi_dh_emc scsi_dh ata_generic ata_piix libata megaraid_sas scsi_mod CPU 39 Pid: 6454, comm: sh Not tainted 3.7.0-rc1-acpihp-final+ #45 QCI QSSC-S4R/QSSC-S4R RIP: 0010:[] [] __phys_addr+0x88/0x90 RSP: 0018:ffff8804440d7c08 EFLAGS: 00010006 RAX: 0000000000000006 RBX: ffffea0012000000 RCX: 000000000000002c ... Signed-off-by: Jianguo Wu Signed-off-by: Jiang Liu Reviewd-by: Wen Congyang Acked-by: Johannes Weiner Reviewed-by: Yasuaki Ishimatsu Reviewed-by: Michal Hocko Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/sparse.c b/mm/sparse.c index fac95f2..a83de2f 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -617,7 +617,7 @@ static void __kfree_section_memmap(struct page *memmap, unsigned long nr_pages) { return; /* XXX: Not implemented yet */ } -static void free_map_bootmem(struct page *page, unsigned long nr_pages) +static void free_map_bootmem(struct page *memmap, unsigned long nr_pages) { } #else @@ -658,10 +658,11 @@ static void __kfree_section_memmap(struct page *memmap, unsigned long nr_pages) get_order(sizeof(struct page) * nr_pages)); } -static void free_map_bootmem(struct page *page, unsigned long nr_pages) +static void free_map_bootmem(struct page *memmap, unsigned long nr_pages) { unsigned long maps_section_nr, removing_section_nr, i; unsigned long magic; + struct page *page = virt_to_page(memmap); for (i = 0; i < nr_pages; i++, page++) { magic = (unsigned long) page->lru.next; @@ -710,13 +711,10 @@ static void free_section_usemap(struct page *memmap, unsigned long *usemap) */ if (memmap) { - struct page *memmap_page; - memmap_page = virt_to_page(memmap); - nr_pages = PAGE_ALIGN(PAGES_PER_SECTION * sizeof(struct page)) >> PAGE_SHIFT; - free_map_bootmem(memmap_page, nr_pages); + free_map_bootmem(memmap, nr_pages); } } -- cgit v0.10.2 From 60cefed485a02bd99b6299dad70666fe49245da7 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Thu, 29 Nov 2012 13:54:23 -0800 Subject: mm: vmscan: fix endless loop in kswapd balancing Kswapd does not in all places have the same criteria for a balanced zone. Zones are only being reclaimed when their high watermark is breached, but compaction checks loop over the zonelist again when the zone does not meet the low watermark plus two times the size of the allocation. This gets kswapd stuck in an endless loop over a small zone, like the DMA zone, where the high watermark is smaller than the compaction requirement. Add a function, zone_balanced(), that checks the watermark, and, for higher order allocations, if compaction has enough free memory. Then use it uniformly to check for balanced zones. This makes sure that when the compaction watermark is not met, at least reclaim happens and progress is made - or the zone is declared unreclaimable at some point and skipped entirely. Signed-off-by: Johannes Weiner Reported-by: George Spelvin Reported-by: Johannes Hirte Reported-by: Tomas Racek Tested-by: Johannes Hirte Reviewed-by: Rik van Riel Cc: Mel Gorman Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/vmscan.c b/mm/vmscan.c index cbf84e1..83f4d0e 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2414,6 +2414,19 @@ static void age_active_anon(struct zone *zone, struct scan_control *sc) } while (memcg); } +static bool zone_balanced(struct zone *zone, int order, + unsigned long balance_gap, int classzone_idx) +{ + if (!zone_watermark_ok_safe(zone, order, high_wmark_pages(zone) + + balance_gap, classzone_idx, 0)) + return false; + + if (COMPACTION_BUILD && order && !compaction_suitable(zone, order)) + return false; + + return true; +} + /* * pgdat_balanced is used when checking if a node is balanced for high-order * allocations. Only zones that meet watermarks and are in a zone allowed @@ -2492,8 +2505,7 @@ static bool prepare_kswapd_sleep(pg_data_t *pgdat, int order, long remaining, continue; } - if (!zone_watermark_ok_safe(zone, order, high_wmark_pages(zone), - i, 0)) + if (!zone_balanced(zone, order, 0, i)) all_zones_ok = false; else balanced += zone->present_pages; @@ -2602,8 +2614,7 @@ loop_again: break; } - if (!zone_watermark_ok_safe(zone, order, - high_wmark_pages(zone), 0, 0)) { + if (!zone_balanced(zone, order, 0, 0)) { end_zone = i; break; } else { @@ -2679,9 +2690,8 @@ loop_again: testorder = 0; if ((buffer_heads_over_limit && is_highmem_idx(i)) || - !zone_watermark_ok_safe(zone, testorder, - high_wmark_pages(zone) + balance_gap, - end_zone, 0)) { + !zone_balanced(zone, testorder, + balance_gap, end_zone)) { shrink_zone(zone, &sc); reclaim_state->reclaimed_slab = 0; @@ -2708,8 +2718,7 @@ loop_again: continue; } - if (!zone_watermark_ok_safe(zone, testorder, - high_wmark_pages(zone), end_zone, 0)) { + if (!zone_balanced(zone, testorder, 0, end_zone)) { all_zones_ok = 0; /* * We are still under min water mark. This -- cgit v0.10.2 From a50915394f1fc02c2861d3b7ce7014788aa5066e Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Thu, 29 Nov 2012 13:54:27 -0800 Subject: revert "Revert "mm: remove __GFP_NO_KSWAPD"" It apepars that this patch was innocent, and we hope that "mm: avoid waking kswapd for THP allocations when compaction is deferred or contended" will fix the final kswapd-spinning cause. Cc: Zdenek Kabelac Cc: Seth Jennings Cc: Valdis Kletnieks Cc: Jiri Slaby Cc: Rik van Riel Cc: Robert Jennings Cc: Mel Gorman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index ec794a7..374c46d 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -1077,8 +1077,7 @@ EXPORT_SYMBOL_GPL(mtd_writev); * until the request succeeds or until the allocation size falls below * the system page size. This attempts to make sure it does not adversely * impact system performance, so when allocating more than one page, we - * ask the memory allocator to avoid re-trying, swapping, writing back - * or performing I/O. + * ask the memory allocator to avoid re-trying. * * Note, this function also makes sure that the allocated buffer is aligned to * the MTD device's min. I/O unit, i.e. the "mtd->writesize" value. @@ -1092,8 +1091,7 @@ EXPORT_SYMBOL_GPL(mtd_writev); */ void *mtd_kmalloc_up_to(const struct mtd_info *mtd, size_t *size) { - gfp_t flags = __GFP_NOWARN | __GFP_WAIT | - __GFP_NORETRY | __GFP_NO_KSWAPD; + gfp_t flags = __GFP_NOWARN | __GFP_WAIT | __GFP_NORETRY; size_t min_alloc = max_t(size_t, mtd->writesize, PAGE_SIZE); void *kbuf; diff --git a/include/linux/gfp.h b/include/linux/gfp.h index d0a7967..76e1aa2 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -30,10 +30,9 @@ struct vm_area_struct; #define ___GFP_HARDWALL 0x20000u #define ___GFP_THISNODE 0x40000u #define ___GFP_RECLAIMABLE 0x80000u -#define ___GFP_NOTRACK 0x200000u -#define ___GFP_NO_KSWAPD 0x400000u -#define ___GFP_OTHER_NODE 0x800000u -#define ___GFP_WRITE 0x1000000u +#define ___GFP_NOTRACK 0x100000u +#define ___GFP_OTHER_NODE 0x200000u +#define ___GFP_WRITE 0x400000u /* * GFP bitmasks.. @@ -86,7 +85,6 @@ struct vm_area_struct; #define __GFP_RECLAIMABLE ((__force gfp_t)___GFP_RECLAIMABLE) /* Page is reclaimable */ #define __GFP_NOTRACK ((__force gfp_t)___GFP_NOTRACK) /* Don't track with kmemcheck */ -#define __GFP_NO_KSWAPD ((__force gfp_t)___GFP_NO_KSWAPD) #define __GFP_OTHER_NODE ((__force gfp_t)___GFP_OTHER_NODE) /* On behalf of other node */ #define __GFP_WRITE ((__force gfp_t)___GFP_WRITE) /* Allocator intends to dirty page */ @@ -96,7 +94,7 @@ struct vm_area_struct; */ #define __GFP_NOTRACK_FALSE_POSITIVE (__GFP_NOTRACK) -#define __GFP_BITS_SHIFT 25 /* Room for N __GFP_FOO bits */ +#define __GFP_BITS_SHIFT 23 /* Room for N __GFP_FOO bits */ #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1)) /* This equals 0, but use constants in case they ever change */ @@ -116,8 +114,7 @@ struct vm_area_struct; __GFP_MOVABLE) #define GFP_IOFS (__GFP_IO | __GFP_FS) #define GFP_TRANSHUGE (GFP_HIGHUSER_MOVABLE | __GFP_COMP | \ - __GFP_NOMEMALLOC | __GFP_NORETRY | __GFP_NOWARN | \ - __GFP_NO_KSWAPD) + __GFP_NOMEMALLOC | __GFP_NORETRY | __GFP_NOWARN) #ifdef CONFIG_NUMA #define GFP_THISNODE (__GFP_THISNODE | __GFP_NOWARN | __GFP_NORETRY) diff --git a/include/trace/events/gfpflags.h b/include/trace/events/gfpflags.h index d6fd8e5..9391706 100644 --- a/include/trace/events/gfpflags.h +++ b/include/trace/events/gfpflags.h @@ -36,7 +36,6 @@ {(unsigned long)__GFP_RECLAIMABLE, "GFP_RECLAIMABLE"}, \ {(unsigned long)__GFP_MOVABLE, "GFP_MOVABLE"}, \ {(unsigned long)__GFP_NOTRACK, "GFP_NOTRACK"}, \ - {(unsigned long)__GFP_NO_KSWAPD, "GFP_NO_KSWAPD"}, \ {(unsigned long)__GFP_OTHER_NODE, "GFP_OTHER_NODE"} \ ) : "GFP_NOWAIT" diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 7e208f0..8193809 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2416,9 +2416,8 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, goto nopage; restart: - if (!(gfp_mask & __GFP_NO_KSWAPD)) - wake_all_kswapd(order, zonelist, high_zoneidx, - zone_idx(preferred_zone)); + wake_all_kswapd(order, zonelist, high_zoneidx, + zone_idx(preferred_zone)); /* * OK, we're below the kswapd watermark and have kicked background @@ -2495,7 +2494,7 @@ rebalance: * system then fail the allocation instead of entering direct reclaim. */ if ((deferred_compaction || contended_compaction) && - (gfp_mask & __GFP_NO_KSWAPD)) + (gfp_mask & (__GFP_MOVABLE|__GFP_REPEAT)) == __GFP_MOVABLE) goto nopage; /* Try direct reclaim and then allocating */ -- cgit v0.10.2 From 782fd30406ecb9d9b082816abe0c6008fc72a7b0 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Thu, 29 Nov 2012 13:54:30 -0800 Subject: mm: avoid waking kswapd for THP allocations when compaction is deferred or contended With "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures" reverted, Zdenek Kabelac reported the following Hmm, so it's just took longer to hit the problem and observe kswapd0 spinning on my CPU again - it's not as endless like before - but still it easily eats minutes - it helps to turn off Firefox or TB (memory hungry apps) so kswapd0 stops soon - and restart those apps again. (And I still have like >1GB of cached memory) kswapd0 R running task 0 30 2 0x00000000 Call Trace: preempt_schedule+0x42/0x60 _raw_spin_unlock+0x55/0x60 put_super+0x31/0x40 drop_super+0x22/0x30 prune_super+0x149/0x1b0 shrink_slab+0xba/0x510 The sysrq+m indicates the system has no swap so it'll never reclaim anonymous pages as part of reclaim/compaction. That is one part of the problem but not the root cause as file-backed pages could also be reclaimed. The likely underlying problem is that kswapd is woken up or kept awake for each THP allocation request in the page allocator slow path. If compaction fails for the requesting process then compaction will be deferred for a time and direct reclaim is avoided. However, if there are a storm of THP requests that are simply rejected, it will still be the the case that kswapd is awake for a prolonged period of time as pgdat->kswapd_max_order is updated each time. This is noticed by the main kswapd() loop and it will not call kswapd_try_to_sleep(). Instead it will loopp, shrinking a small number of pages and calling shrink_slab() on each iteration. This patch defers when kswapd gets woken up for THP allocations. For !THP allocations, kswapd is always woken up. For THP allocations, kswapd is woken up iff the process is willing to enter into direct reclaim/compaction. [akpm@linux-foundation.org: fix typo in comment] Signed-off-by: Mel Gorman Cc: Zdenek Kabelac Cc: Seth Jennings Cc: Jiri Slaby Cc: Rik van Riel Cc: Robert Jennings Cc: Valdis Kletnieks Cc: Glauber Costa Cc: Johannes Weiner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 8193809..a8f2c87 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2378,6 +2378,15 @@ bool gfp_pfmemalloc_allowed(gfp_t gfp_mask) return !!(gfp_to_alloc_flags(gfp_mask) & ALLOC_NO_WATERMARKS); } +/* Returns true if the allocation is likely for THP */ +static bool is_thp_alloc(gfp_t gfp_mask, unsigned int order) +{ + if (order == pageblock_order && + (gfp_mask & (__GFP_MOVABLE|__GFP_REPEAT)) == __GFP_MOVABLE) + return true; + return false; +} + static inline struct page * __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, struct zonelist *zonelist, enum zone_type high_zoneidx, @@ -2416,7 +2425,9 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, goto nopage; restart: - wake_all_kswapd(order, zonelist, high_zoneidx, + /* The decision whether to wake kswapd for THP is made later */ + if (!is_thp_alloc(gfp_mask, order)) + wake_all_kswapd(order, zonelist, high_zoneidx, zone_idx(preferred_zone)); /* @@ -2487,15 +2498,21 @@ rebalance: goto got_pg; sync_migration = true; - /* - * If compaction is deferred for high-order allocations, it is because - * sync compaction recently failed. In this is the case and the caller - * requested a movable allocation that does not heavily disrupt the - * system then fail the allocation instead of entering direct reclaim. - */ - if ((deferred_compaction || contended_compaction) && - (gfp_mask & (__GFP_MOVABLE|__GFP_REPEAT)) == __GFP_MOVABLE) - goto nopage; + if (is_thp_alloc(gfp_mask, order)) { + /* + * If compaction is deferred for high-order allocations, it is + * because sync compaction recently failed. If this is the case + * and the caller requested a movable allocation that does not + * heavily disrupt the system then fail the allocation instead + * of entering direct reclaim. + */ + if (deferred_compaction || contended_compaction) + goto nopage; + + /* If process is willing to reclaim/compact then wake kswapd */ + wake_all_kswapd(order, zonelist, high_zoneidx, + zone_idx(preferred_zone)); + } /* Try direct reclaim and then allocating */ page = __alloc_pages_direct_reclaim(gfp_mask, order, -- cgit v0.10.2 From 783657a7dc20e5c0efbc9a09a9dd38e238a723da Mon Sep 17 00:00:00 2001 From: Naoya Horiguchi Date: Thu, 29 Nov 2012 13:54:34 -0800 Subject: mm: soft offline: split thp at the beginning of soft_offline_page() When we try to soft-offline a thp tail page, put_page() is called on the tail page unthinkingly and VM_BUG_ON is triggered in put_compound_page(). This patch splits thp before going into the main body of soft-offlining. Signed-off-by: Naoya Horiguchi Cc: Andi Kleen Cc: Tony Luck Cc: Andi Kleen Cc: Wu Fengguang Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 6c5899b..8b20278 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1476,9 +1476,17 @@ int soft_offline_page(struct page *page, int flags) { int ret; unsigned long pfn = page_to_pfn(page); + struct page *hpage = compound_trans_head(page); if (PageHuge(page)) return soft_offline_huge_page(page, flags); + if (PageTransHuge(hpage)) { + if (PageAnon(hpage) && unlikely(split_huge_page(hpage))) { + pr_info("soft offline: %#lx: failed to split THP\n", + pfn); + return -EBUSY; + } + } ret = get_any_page(page, pfn, flags); if (ret < 0) -- cgit v0.10.2 From 1430e17844e2cd15bc15f3c21b5349e762f6ba41 Mon Sep 17 00:00:00 2001 From: "Kim, Milo" Date: Thu, 29 Nov 2012 13:54:36 -0800 Subject: drivers/rtc/rtc-tps65910.c: fix invalid pointer access on _remove() The tps65910_rtc data is registered as the platform driver data in _probe(= ). Therefore the tps65910_rtc should be used on unregistering the rtc device. And device pointer should be retrieved from the platform_device structure. This patch fixes the below oops: Unable to handle kernel NULL pointer dereference at virtual address 00000008 Modules linked in: rtc_tps65910(-) CPU: 0 Not tainted (3.7.0-rc7-next-20121128-g6b1f974-dirty #7) PC is at tps65910_rtc_alarm_irq_enable+0x20/0x2c [rtc_tps65910] (tps65910_rtc_alarm_irq_enable+0x20/0x2c [rtc_tps65910]) (tps65910_rtc_remove+0x18/0x28 [rtc_tps65910]) (platform_drv_remove+0x18/0x1c) (__device_release_driver+0x70/0xcc) (driver_detach+0xb4/0xb8) (bus_remove_driver+0x7c/0xc0) (sys_delete_module+0x148/0x21c) Signed-off-by: Milo(Woogyom) Kim Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/rtc/rtc-tps65910.c b/drivers/rtc/rtc-tps65910.c index 7a82337..073108d 100644 --- a/drivers/rtc/rtc-tps65910.c +++ b/drivers/rtc/rtc-tps65910.c @@ -288,11 +288,11 @@ static int __devinit tps65910_rtc_probe(struct platform_device *pdev) static int __devexit tps65910_rtc_remove(struct platform_device *pdev) { /* leave rtc running, but disable irqs */ - struct rtc_device *rtc = platform_get_drvdata(pdev); + struct tps65910_rtc *tps_rtc = platform_get_drvdata(pdev); - tps65910_rtc_alarm_irq_enable(&rtc->dev, 0); + tps65910_rtc_alarm_irq_enable(&pdev->dev, 0); - rtc_device_unregister(rtc); + rtc_device_unregister(tps_rtc->rtc); return 0; } -- cgit v0.10.2 From 644c154186386bb1fa6446bc5e037b9ed098db46 Mon Sep 17 00:00:00 2001 From: Vincent Palatin Date: Fri, 30 Nov 2012 12:15:32 -0800 Subject: x86, fpu: Avoid FPU lazy restore after suspend When a cpu enters S3 state, the FPU state is lost. After resuming for S3, if we try to lazy restore the FPU for a process running on the same CPU, this will result in a corrupted FPU context. Ensure that "fpu_owner_task" is properly invalided when (re-)initializing a CPU, so nobody will try to lazy restore a state which doesn't exist in the hardware. Tested with a 64-bit kernel on a 4-core Ivybridge CPU with eagerfpu=off, by doing thousands of suspend/resume cycles with 4 processes doing FPU operations running. Without the patch, a process is killed after a few hundreds cycles by a SIGFPE. Cc: Duncan Laurie Cc: Olof Johansson Cc: v3.4+ # for 3.4 need to replace this_cpu_write by percpu_write Signed-off-by: Vincent Palatin Link: http://lkml.kernel.org/r/1354306532-1014-1-git-send-email-vpalatin@chromium.org Signed-off-by: H. Peter Anvin diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h index 831dbb9..41ab26e 100644 --- a/arch/x86/include/asm/fpu-internal.h +++ b/arch/x86/include/asm/fpu-internal.h @@ -399,14 +399,17 @@ static inline void drop_init_fpu(struct task_struct *tsk) typedef struct { int preload; } fpu_switch_t; /* - * FIXME! We could do a totally lazy restore, but we need to - * add a per-cpu "this was the task that last touched the FPU - * on this CPU" variable, and the task needs to have a "I last - * touched the FPU on this CPU" and check them. + * Must be run with preemption disabled: this clears the fpu_owner_task, + * on this CPU. * - * We don't do that yet, so "fpu_lazy_restore()" always returns - * false, but some day.. + * This will disable any lazy FPU state restore of the current FPU state, + * but if the current thread owns the FPU, it will still be saved by. */ +static inline void __cpu_disable_lazy_restore(unsigned int cpu) +{ + per_cpu(fpu_owner_task, cpu) = NULL; +} + static inline int fpu_lazy_restore(struct task_struct *new, unsigned int cpu) { return new == this_cpu_read_stable(fpu_owner_task) && diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index c80a33b..f3e2ec8 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -68,6 +68,8 @@ #include #include #include +#include +#include #include #include #include @@ -818,6 +820,9 @@ int __cpuinit native_cpu_up(unsigned int cpu, struct task_struct *tidle) per_cpu(cpu_state, cpu) = CPU_UP_PREPARE; + /* the FPU context is blank, nobody can own it */ + __cpu_disable_lazy_restore(cpu); + err = do_boot_cpu(apicid, cpu, tidle); if (err) { pr_debug("do_boot_cpu failed %d\n", err); -- cgit v0.10.2 From 412d32e6c98527078779e5b515823b2810e40324 Mon Sep 17 00:00:00 2001 From: Mike Galbraith Date: Wed, 28 Nov 2012 07:17:18 +0100 Subject: workqueue: exit rescuer_thread() as TASK_RUNNING A rescue thread exiting TASK_INTERRUPTIBLE can lead to a task scheduling off, never to be seen again. In the case where this occurred, an exiting thread hit reiserfs homebrew conditional resched while holding a mutex, bringing the box to its knees. PID: 18105 TASK: ffff8807fd412180 CPU: 5 COMMAND: "kdmflush" #0 [ffff8808157e7670] schedule at ffffffff8143f489 #1 [ffff8808157e77b8] reiserfs_get_block at ffffffffa038ab2d [reiserfs] #2 [ffff8808157e79a8] __block_write_begin at ffffffff8117fb14 #3 [ffff8808157e7a98] reiserfs_write_begin at ffffffffa0388695 [reiserfs] #4 [ffff8808157e7ad8] generic_perform_write at ffffffff810ee9e2 #5 [ffff8808157e7b58] generic_file_buffered_write at ffffffff810eeb41 #6 [ffff8808157e7ba8] __generic_file_aio_write at ffffffff810f1a3a #7 [ffff8808157e7c58] generic_file_aio_write at ffffffff810f1c88 #8 [ffff8808157e7cc8] do_sync_write at ffffffff8114f850 #9 [ffff8808157e7dd8] do_acct_process at ffffffff810a268f [exception RIP: kernel_thread_helper] RIP: ffffffff8144a5c0 RSP: ffff8808157e7f58 RFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8107af60 RDI: ffff8803ee491d18 RBP: 0000000000000000 R8: 0000000000000000 R9: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 Signed-off-by: Mike Galbraith Signed-off-by: Tejun Heo Cc: stable@vger.kernel.org diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 042d221..ac25db1 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -2407,8 +2407,10 @@ static int rescuer_thread(void *__wq) repeat: set_current_state(TASK_INTERRUPTIBLE); - if (kthread_should_stop()) + if (kthread_should_stop()) { + __set_current_state(TASK_RUNNING); return 0; + } /* * See whether any cpu is asking for help. Unbounded -- cgit v0.10.2 From 8852aac25e79e38cc6529f20298eed154f60b574 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 1 Dec 2012 16:23:42 -0800 Subject: workqueue: mod_delayed_work_on() shouldn't queue timer on 0 delay 8376fe22c7 ("workqueue: implement mod_delayed_work[_on]()") implemented mod_delayed_work[_on]() using the improved try_to_grab_pending(). The function is later used, among others, to replace [__]candel_delayed_work() + queue_delayed_work() combinations. Unfortunately, a delayed_work item w/ zero @delay is handled slightly differently by mod_delayed_work_on() compared to queue_delayed_work_on(). The latter skips timer altogether and directly queues it using queue_work_on() while the former schedules timer which will expire on the closest tick. This means, when @delay is zero, that [__]cancel_delayed_work() + queue_delayed_work_on() makes the target item immediately executable while mod_delayed_work_on() may induce delay of upto a full tick. This somewhat subtle difference breaks some of the converted users. e.g. block queue plugging uses delayed_work for deferred processing and uses mod_delayed_work_on() when the queue needs to be immediately unplugged. The above problem manifested as noticeably higher number of context switches under certain circumstances. The difference in behavior was caused by missing special case handling for 0 delay in mod_delayed_work_on() compared to queue_delayed_work_on(). Joonsoo Kim posted a patch to add it - ("workqueue: optimize mod_delayed_work_on() when @delay == 0")[1]. The patch was queued for 3.8 but it was described as optimization and I missed that it was a correctness issue. As both queue_delayed_work_on() and mod_delayed_work_on() use __queue_delayed_work() for queueing, it seems that the better approach is to move the 0 delay special handling to the function instead of duplicating it in mod_delayed_work_on(). Fix the problem by moving 0 delay special case handling from queue_delayed_work_on() to __queue_delayed_work(). This replaces Joonsoo's patch. [1] http://thread.gmane.org/gmane.linux.kernel/1379011/focus=1379012 Signed-off-by: Tejun Heo Reported-and-tested-by: Anders Kaseorg Reported-and-tested-by: Zlatko Calusic LKML-Reference: LKML-Reference: <50A78AA9.5040904@iskon.hr> Cc: Joonsoo Kim diff --git a/kernel/workqueue.c b/kernel/workqueue.c index ac25db1..084aa47 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1364,6 +1364,17 @@ static void __queue_delayed_work(int cpu, struct workqueue_struct *wq, BUG_ON(timer_pending(timer)); BUG_ON(!list_empty(&work->entry)); + /* + * If @delay is 0, queue @dwork->work immediately. This is for + * both optimization and correctness. The earliest @timer can + * expire is on the closest next tick and delayed_work users depend + * on that there's no such delay when @delay is 0. + */ + if (!delay) { + __queue_work(cpu, wq, &dwork->work); + return; + } + timer_stats_timer_set_start_info(&dwork->timer); /* @@ -1417,9 +1428,6 @@ bool queue_delayed_work_on(int cpu, struct workqueue_struct *wq, bool ret = false; unsigned long flags; - if (!delay) - return queue_work_on(cpu, wq, &dwork->work); - /* read the comment in __queue_work() */ local_irq_save(flags); -- cgit v0.10.2 From 64022d0b4e93ea432e95db55a72b8a1c5775f3c0 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sat, 1 Dec 2012 13:07:02 +0000 Subject: tcp: fix crashes in do_tcp_sendpages() Recent network changes allowed high order pages being used for skb fragments. This uncovered a bug in do_tcp_sendpages() which was assuming its caller provided an array of order-0 page pointers. We only have to deal with a single page in this function, and its order is irrelevant. Reported-by: Willy Tarreau Tested-by: Willy Tarreau Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 083092e..e457c7a 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -830,8 +830,8 @@ static int tcp_send_mss(struct sock *sk, int *size_goal, int flags) return mss_now; } -static ssize_t do_tcp_sendpages(struct sock *sk, struct page **pages, int poffset, - size_t psize, int flags) +static ssize_t do_tcp_sendpages(struct sock *sk, struct page *page, int offset, + size_t size, int flags) { struct tcp_sock *tp = tcp_sk(sk); int mss_now, size_goal; @@ -858,12 +858,9 @@ static ssize_t do_tcp_sendpages(struct sock *sk, struct page **pages, int poffse if (sk->sk_err || (sk->sk_shutdown & SEND_SHUTDOWN)) goto out_err; - while (psize > 0) { + while (size > 0) { struct sk_buff *skb = tcp_write_queue_tail(sk); - struct page *page = pages[poffset / PAGE_SIZE]; int copy, i; - int offset = poffset % PAGE_SIZE; - int size = min_t(size_t, psize, PAGE_SIZE - offset); bool can_coalesce; if (!tcp_send_head(sk) || (copy = size_goal - skb->len) <= 0) { @@ -912,8 +909,8 @@ new_segment: TCP_SKB_CB(skb)->tcp_flags &= ~TCPHDR_PSH; copied += copy; - poffset += copy; - if (!(psize -= copy)) + offset += copy; + if (!(size -= copy)) goto out; if (skb->len < size_goal || (flags & MSG_OOB)) @@ -960,7 +957,7 @@ int tcp_sendpage(struct sock *sk, struct page *page, int offset, flags); lock_sock(sk); - res = do_tcp_sendpages(sk, &page, offset, size, flags); + res = do_tcp_sendpages(sk, page, offset, size, flags); release_sock(sk); return res; } -- cgit v0.10.2 From 892a925e42adb8192a3c832ad29cbc780fc466f6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?fran=C3=A7ois=20romieu?= Date: Sat, 1 Dec 2012 13:08:50 +0000 Subject: 8139cp: fix coherent mapping leak in error path. cp_open [...] rc = cp_alloc_rings(cp); if (rc) return rc; cp_alloc_rings [...] mem = dma_alloc_coherent(&cp->pdev->dev, CP_RING_BYTES, &cp->ring_dma, GFP_KERNEL); - cp_alloc_rings never frees the coherent mapping it allocates - neither do cp_open when cp_alloc_rings fails Signed-off-by: Francois Romieu Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c index b01f83a..609125a 100644 --- a/drivers/net/ethernet/realtek/8139cp.c +++ b/drivers/net/ethernet/realtek/8139cp.c @@ -1060,17 +1060,22 @@ static int cp_init_rings (struct cp_private *cp) static int cp_alloc_rings (struct cp_private *cp) { + struct device *d = &cp->pdev->dev; void *mem; + int rc; - mem = dma_alloc_coherent(&cp->pdev->dev, CP_RING_BYTES, - &cp->ring_dma, GFP_KERNEL); + mem = dma_alloc_coherent(d, CP_RING_BYTES, &cp->ring_dma, GFP_KERNEL); if (!mem) return -ENOMEM; cp->rx_ring = mem; cp->tx_ring = &cp->rx_ring[CP_RX_RING_SIZE]; - return cp_init_rings(cp); + rc = cp_init_rings(cp); + if (rc < 0) + dma_free_coherent(d, CP_RING_BYTES, cp->rx_ring, cp->ring_dma); + + return rc; } static void cp_clean_rings (struct cp_private *cp) -- cgit v0.10.2 From 9d73fc2d641f8831c9dc803177fe47c02120cc36 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 2 Dec 2012 17:55:07 +0000 Subject: open*(2) compat fixes (s390, arm64) The usual rules for open()/openat()/open_by_handle_at() are 1) native 32bit - don't force O_LARGEFILE in flags 2) native 64bit - force O_LARGEFILE in flags 3) compat on 64bit host - as for native 32bit 4) native 32bit ABI for 64bit system (mips/n32, x86/x32) - as for native 64bit There are only two exceptions - s390 compat has open() forcing O_LARGEFILE and arm64 compat has open_by_handle_at() doing the same thing. The same binaries on native host (s390/31 and arm resp.) will *not* force O_LARGEFILE, so IMO both are emulation bugs. Objections? The fix is obvious... Signed-off-by: Al Viro Signed-off-by: Linus Torvalds diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h index 6d909fa..656a6f2 100644 --- a/arch/arm64/include/asm/unistd32.h +++ b/arch/arm64/include/asm/unistd32.h @@ -392,7 +392,7 @@ __SYSCALL(367, sys_fanotify_init) __SYSCALL(368, compat_sys_fanotify_mark_wrapper) __SYSCALL(369, sys_prlimit64) __SYSCALL(370, sys_name_to_handle_at) -__SYSCALL(371, sys_open_by_handle_at) +__SYSCALL(371, compat_sys_open_by_handle_at) __SYSCALL(372, sys_clock_adjtime) __SYSCALL(373, sys_syncfs) diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index ad79b84..827e094 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -28,7 +28,7 @@ ENTRY(sys32_open_wrapper) llgtr %r2,%r2 # const char * lgfr %r3,%r3 # int lgfr %r4,%r4 # int - jg sys_open # branch to system call + jg compat_sys_open # branch to system call ENTRY(sys32_close_wrapper) llgfr %r2,%r2 # unsigned int -- cgit v0.10.2 From cbdbf2abb7844548a7d7a6a2ae7af6b6fbcea401 Mon Sep 17 00:00:00 2001 From: James Hogan Date: Fri, 23 Nov 2012 12:08:15 +0000 Subject: linux/kernel.h: define SYMBOL_PREFIX Define SYMBOL_PREFIX to be the same as CONFIG_SYMBOL_PREFIX if set by the architecture, or "" otherwise. This avoids the need for ugly #ifdefs whenever symbols are referenced in asm blocks. Signed-off-by: James Hogan Cc: Andrew Morton Cc: Joe Perches Cc: Paul Gortmaker Cc: Jean Delvare Cc: Ralf Baechle Cc: Mike Frysinger Signed-off-by: Rusty Russell diff --git a/include/linux/kernel.h b/include/linux/kernel.h index a123b13..7d8dfc7 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -701,6 +701,13 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { } #define COMPACTION_BUILD 0 #endif +/* This helps us to avoid #ifdef CONFIG_SYMBOL_PREFIX */ +#ifdef CONFIG_SYMBOL_PREFIX +#define SYMBOL_PREFIX CONFIG_SYMBOL_PREFIX +#else +#define SYMBOL_PREFIX "" +#endif + /* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */ #ifdef CONFIG_FTRACE_MCOUNT_RECORD # define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD -- cgit v0.10.2 From 84ecfd15f5547c992c901df6ec14b4d507eb2c6e Mon Sep 17 00:00:00 2001 From: James Hogan Date: Fri, 23 Nov 2012 12:08:16 +0000 Subject: modsign: add symbol prefix to certificate list Add the arch symbol prefix (if applicable) to the asm definition of modsign_certificate_list and modsign_certificate_list_end. This uses the recently defined SYMBOL_PREFIX which is derived from CONFIG_SYMBOL_PREFIX. This fixes the build of module signing on the blackfin and metag architectures. Signed-off-by: James Hogan Cc: Rusty Russell Cc: David Howells Cc: Mike Frysinger Signed-off-by: Rusty Russell diff --git a/kernel/modsign_pubkey.c b/kernel/modsign_pubkey.c index 4646eb2..767e559 100644 --- a/kernel/modsign_pubkey.c +++ b/kernel/modsign_pubkey.c @@ -21,10 +21,10 @@ struct key *modsign_keyring; extern __initdata const u8 modsign_certificate_list[]; extern __initdata const u8 modsign_certificate_list_end[]; asm(".section .init.data,\"aw\"\n" - "modsign_certificate_list:\n" + SYMBOL_PREFIX "modsign_certificate_list:\n" ".incbin \"signing_key.x509\"\n" ".incbin \"extra_certificates\"\n" - "modsign_certificate_list_end:" + SYMBOL_PREFIX "modsign_certificate_list_end:" ); /* -- cgit v0.10.2 From fd8ef11730f1d03d5d6555aa53126e9e34f52f12 Mon Sep 17 00:00:00 2001 From: Mike Galbraith Date: Mon, 3 Dec 2012 06:25:25 +0100 Subject: Revert "sched, autogroup: Stop going ahead if autogroup is disabled" This reverts commit 800d4d30c8f20bd728e5741a3b77c4859a613f7c. Between commits 8323f26ce342 ("sched: Fix race in task_group()") and 800d4d30c8f2 ("sched, autogroup: Stop going ahead if autogroup is disabled"), autogroup is a wreck. With both applied, all you have to do to crash a box is disable autogroup during boot up, then reboot.. boom, NULL pointer dereference due to commit 800d4d30c8f2 not allowing autogroup to move things, and commit 8323f26ce342 making that the only way to switch runqueues: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [] effective_load.isra.43+0x50/0x90 Pid: 7047, comm: systemd-user-se Not tainted 3.6.8-smp #7 MEDIONPC MS-7502/MS-7502 RIP: effective_load.isra.43+0x50/0x90 Process systemd-user-se (pid: 7047, threadinfo ffff880221dde000, task ffff88022618b3a0) Call Trace: select_task_rq_fair+0x255/0x780 try_to_wake_up+0x156/0x2c0 wake_up_state+0xb/0x10 signal_wake_up+0x28/0x40 complete_signal+0x1d6/0x250 __send_signal+0x170/0x310 send_signal+0x40/0x80 do_send_sig_info+0x47/0x90 group_send_sig_info+0x4a/0x70 kill_pid_info+0x3a/0x60 sys_kill+0x97/0x1a0 ? vfs_read+0x120/0x160 ? sys_read+0x45/0x90 system_call_fastpath+0x16/0x1b Code: 49 0f af 41 50 31 d2 49 f7 f0 48 83 f8 01 48 0f 46 c6 48 2b 07 48 8b bf 40 01 00 00 48 85 ff 74 3a 45 31 c0 48 8b 8f 50 01 00 00 <48> 8b 11 4c 8b 89 80 00 00 00 49 89 d2 48 01 d0 45 8b 59 58 4c RIP [] effective_load.isra.43+0x50/0x90 RSP CR2: 0000000000000000 Signed-off-by: Mike Galbraith Acked-by: Ingo Molnar Cc: Yong Zhang Cc: Peter Zijlstra Cc: stable@vger.kernel.org # 2.6.39+ Signed-off-by: Linus Torvalds diff --git a/kernel/sched/auto_group.c b/kernel/sched/auto_group.c index 0984a21..15f60d0 100644 --- a/kernel/sched/auto_group.c +++ b/kernel/sched/auto_group.c @@ -143,15 +143,11 @@ autogroup_move_group(struct task_struct *p, struct autogroup *ag) p->signal->autogroup = autogroup_kref_get(ag); - if (!ACCESS_ONCE(sysctl_sched_autogroup_enabled)) - goto out; - t = p; do { sched_move_task(t); } while_each_thread(p, t); -out: unlock_task_sighand(p, &flags); autogroup_kref_put(prev); } diff --git a/kernel/sched/auto_group.h b/kernel/sched/auto_group.h index 8bd0471..443232e 100644 --- a/kernel/sched/auto_group.h +++ b/kernel/sched/auto_group.h @@ -4,11 +4,6 @@ #include struct autogroup { - /* - * reference doesn't mean how many thread attach to this - * autogroup now. It just stands for the number of task - * could use this autogroup. - */ struct kref kref; struct task_group *tg; struct rw_semaphore lock; -- cgit v0.10.2 From 25a3bc6bd1ca03ab504b8c55c98f8d0135644d53 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 3 Dec 2012 18:15:30 +0000 Subject: [parisc] open(2) compat bug In commit 9d73fc2d641f ("open*(2) compat fixes (s390, arm64)") I said: > > The usual rules for open()/openat()/open_by_handle_at() are > 1) native 32bit - don't force O_LARGEFILE in flags > 2) native 64bit - force O_LARGEFILE in flags > 3) compat on 64bit host - as for native 32bit > 4) native 32bit ABI for 64bit system (mips/n32, x86/x32) - as for native 64bit > > There are only two exceptions - s390 compat has open() forcing O_LARGEFILE and > arm64 compat has open_by_handle_at() doing the same thing. The same binaries > on native host (s390/31 and arm resp.) will *not* force O_LARGEFILE, so IMO > both are emulation bugs. Three exceptions, actually - parisc open() is another case like that. Native 32bit won't force O_LARGEFILE, the same binary on parisc64 will. Signed-off-by: Al Viro Signed-off-by: Linus Torvalds diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S index 3735abd..cbf5d59 100644 --- a/arch/parisc/kernel/syscall_table.S +++ b/arch/parisc/kernel/syscall_table.S @@ -60,7 +60,7 @@ ENTRY_SAME(fork_wrapper) ENTRY_SAME(read) ENTRY_SAME(write) - ENTRY_SAME(open) /* 5 */ + ENTRY_COMP(open) /* 5 */ ENTRY_SAME(close) ENTRY_SAME(waitpid) ENTRY_SAME(creat) -- cgit v0.10.2 From de7531e8575ab383a0f5bb68b63e7891fce4765d Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 3 Dec 2012 11:17:57 -0800 Subject: sparc64: exit_group should kill register windows just like plain exit. Reported-by: Al Viro Signed-off-by: David S. Miller diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S index 44025f4..8475a47 100644 --- a/arch/sparc/kernel/sys32.S +++ b/arch/sparc/kernel/sys32.S @@ -47,7 +47,7 @@ STUB: sra REG1, 0, REG1; \ sra REG4, 0, REG4 SIGN1(sys32_exit, sparc_exit, %o0) -SIGN1(sys32_exit_group, sys_exit_group, %o0) +SIGN1(sys32_exit_group, sparc_exit_group, %o0) SIGN1(sys32_wait4, compat_sys_wait4, %o2) SIGN1(sys32_creat, sys_creat, %o1) SIGN1(sys32_mknod, sys_mknod, %o1) diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S index 7f5f65d..bf23477 100644 --- a/arch/sparc/kernel/syscalls.S +++ b/arch/sparc/kernel/syscalls.S @@ -118,10 +118,20 @@ ret_from_syscall: ba,pt %xcc, ret_sys_call ldx [%sp + PTREGS_OFF + PT_V9_I0], %o0 + .globl sparc_exit_group + .type sparc_exit_group,#function +sparc_exit_group: + sethi %hi(sys_exit_group), %g7 + ba,pt %xcc, 1f + or %g7, %lo(sys_exit_group), %g7 + .size sparc_exit_group,.-sparc_exit_group + .globl sparc_exit .type sparc_exit,#function sparc_exit: - rdpr %pstate, %g2 + sethi %hi(sys_exit), %g7 + or %g7, %lo(sys_exit), %g7 +1: rdpr %pstate, %g2 wrpr %g2, PSTATE_IE, %pstate rdpr %otherwin, %g1 rdpr %cansave, %g3 @@ -129,7 +139,7 @@ sparc_exit: wrpr %g3, 0x0, %cansave wrpr %g0, 0x0, %otherwin wrpr %g2, 0x0, %pstate - ba,pt %xcc, sys_exit + jmpl %g7, %g0 stb %g0, [%g6 + TI_WSAVED] .size sparc_exit,.-sparc_exit diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index 1c9af9f..017b74a 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -133,7 +133,7 @@ sys_call_table: /*170*/ .word sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, sys_getdents .word sys_setsid, sys_fchdir, sys_fgetxattr, sys_listxattr, sys_llistxattr /*180*/ .word sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_nis_syscall, sys_ni_syscall - .word sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sys_newuname + .word sys_setpgid, sys_fremovexattr, sys_tkill, sparc_exit_group, sys_newuname /*190*/ .word sys_init_module, sys_sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl .word sys_epoll_wait, sys_ioprio_set, sys_getppid, sys_nis_syscall, sys_sgetmask /*200*/ .word sys_ssetmask, sys_nis_syscall, sys_newlstat, sys_uselib, sys_nis_syscall -- cgit v0.10.2 From b69f0859dc8e633c5d8c06845811588fe17e68b3 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 3 Dec 2012 11:22:37 -0800 Subject: Linux 3.7-rc8 diff --git a/Makefile b/Makefile index 6cab75b..346e28f 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 7 SUBLEVEL = 0 -EXTRAVERSION = -rc7 +EXTRAVERSION = -rc8 NAME = Terrified Chipmunk # *DOCUMENTATION* -- cgit v0.10.2 From 0032c857454581510de1ca12615de5e38e543c92 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 3 Dec 2012 11:24:25 -0800 Subject: sparc: Fix piggyback with newer binutils. Newer versions of binutils mark '_end' as 'B' instead of 'A' for whatever reason. To be honest, the piggyback code doesn't actually care what kind of symbol _start and _end are, it just wants to find them and record the address. So remove the type from the match strings. Reported-by: Aaro Koskinen Signed-off-by: David S. Miller diff --git a/arch/sparc/boot/piggyback.c b/arch/sparc/boot/piggyback.c index c0a798f..bb7c951 100644 --- a/arch/sparc/boot/piggyback.c +++ b/arch/sparc/boot/piggyback.c @@ -81,18 +81,18 @@ static void usage(void) static int start_line(const char *line) { - if (strcmp(line + 8, " T _start\n") == 0) + if (strcmp(line + 10, " _start\n") == 0) return 1; - else if (strcmp(line + 16, " T _start\n") == 0) + else if (strcmp(line + 18, " _start\n") == 0) return 1; return 0; } static int end_line(const char *line) { - if (strcmp(line + 8, " A _end\n") == 0) + if (strcmp(line + 10, " _end\n") == 0) return 1; - else if (strcmp (line + 16, " A _end\n") == 0) + else if (strcmp (line + 18, " _end\n") == 0) return 1; return 0; } @@ -100,8 +100,8 @@ static int end_line(const char *line) /* * Find address for start and end in System.map. * The file looks like this: - * f0004000 T _start - * f0379f79 A _end + * f0004000 ... _start + * f0379f79 ... _end * 1234567890123456 * ^coloumn 1 * There is support for 64 bit addresses too. -- cgit v0.10.2 From ed4b7021cb51fe5a0f260df03298709347a26967 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Mon, 3 Dec 2012 20:57:46 +0100 Subject: UBI: remove PEB from free tree in get_peb_for_wl() If UBI is built without fastmap, get_peb_for_wl() has to remove the PEB manially from the free tree. Otherwise the requested PEB lives in two trees. Reported-by: Zach Sadecki Signed-off-by: Richard Weinberger Signed-off-by: Artem Bityutskiy diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c index da7b449..1f9f5f7 100644 --- a/drivers/mtd/ubi/wl.c +++ b/drivers/mtd/ubi/wl.c @@ -679,7 +679,13 @@ static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi) #else static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi) { - return find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF); + struct ubi_wl_entry *e; + + e = find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF); + self_check_in_wl_tree(ubi, e, &ubi->free); + rb_erase(&e->u.rb, &ubi->free); + + return e; } int ubi_wl_get_peb(struct ubi_device *ubi) -- cgit v0.10.2 From 894aef215775b56b725e9dde856b7a8b091ddfcc Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Mon, 3 Dec 2012 20:57:47 +0100 Subject: UBI: dont call ubi_self_check_all_ff() in __wl_get_peb() As ubi_self_check_all_ff() might sleep we are not allowed to call it from atomic context. For now we call it only from ubi_wl_get_peb(). There are some code paths where it would also make sense, but these paths are currently atomic and only enabled when fastmap is used. Signed-off-by: Richard Weinberger Signed-off-by: Artem Bityutskiy diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c index 1f9f5f7..2144f61 100644 --- a/drivers/mtd/ubi/wl.c +++ b/drivers/mtd/ubi/wl.c @@ -498,7 +498,7 @@ out: * @ubi: UBI device description object * * This function returns a physical eraseblock in case of success and a - * negative error code in case of failure. Might sleep. + * negative error code in case of failure. */ static int __wl_get_peb(struct ubi_device *ubi) { @@ -540,13 +540,6 @@ retry: * ubi_wl_get_peb() after removing e from the pool. */ prot_queue_add(ubi, e); #endif - err = ubi_self_check_all_ff(ubi, e->pnum, ubi->vid_hdr_aloffset, - ubi->peb_size - ubi->vid_hdr_aloffset); - if (err) { - ubi_err("new PEB %d does not contain all 0xFF bytes", e->pnum); - return err; - } - return e->pnum; } @@ -690,12 +683,19 @@ static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi) int ubi_wl_get_peb(struct ubi_device *ubi) { - int peb; + int peb, err; spin_lock(&ubi->wl_lock); peb = __wl_get_peb(ubi); spin_unlock(&ubi->wl_lock); + err = ubi_self_check_all_ff(ubi, peb, ubi->vid_hdr_aloffset, + ubi->peb_size - ubi->vid_hdr_aloffset); + if (err) { + ubi_err("new PEB %d does not contain all 0xFF bytes", peb); + return err; + } + return peb; } #endif -- cgit v0.10.2 From c1d390d8e6128b050f0f66b1c33d390760deb3f4 Mon Sep 17 00:00:00 2001 From: Xiaotian Feng Date: Tue, 4 Dec 2012 19:33:54 +0800 Subject: megaraid: fix BUG_ON() from incorrect use of delayed work megaraid use INIT_WORK to declare a hotplug_work, but cast the hotplug_work from work_struct to delayed_work and schedule_delayed_work on it. This is very dangerous, as other part of delayed_work might be kernel memories allocated by others. With commit 8852aac ("workqueue: mod_delayed_work_on() shouldn't queue timer on 0 delay"), schedule_delayed_work() will check dwork->timer before queue_work even when @delay is 0, this causes megaraid code to hit the BUG_ON() in workqueue code. Change megaraid code to use delayed work. Signed-off-by: Xiaotian Feng Signed-off-by: Tejun Heo Cc: Neela Syam Kolli Cc: "James E.J. Bottomley" Cc: linux-scsi@vger.kernel.org diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index 16b7a72..3b2365c 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -1276,7 +1276,7 @@ struct megasas_evt_detail { } __attribute__ ((packed)); struct megasas_aen_event { - struct work_struct hotplug_work; + struct delayed_work hotplug_work; struct megasas_instance *instance; }; diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index d2c5366..e4f2baa 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -2060,9 +2060,9 @@ megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) } else { ev->instance = instance; instance->ev = ev; - INIT_WORK(&ev->hotplug_work, megasas_aen_polling); - schedule_delayed_work( - (struct delayed_work *)&ev->hotplug_work, 0); + INIT_DELAYED_WORK(&ev->hotplug_work, + megasas_aen_polling); + schedule_delayed_work(&ev->hotplug_work, 0); } } } @@ -4352,8 +4352,7 @@ megasas_suspend(struct pci_dev *pdev, pm_message_t state) /* cancel the delayed work if this work still in queue */ if (instance->ev != NULL) { struct megasas_aen_event *ev = instance->ev; - cancel_delayed_work_sync( - (struct delayed_work *)&ev->hotplug_work); + cancel_delayed_work_sync(&ev->hotplug_work); instance->ev = NULL; } @@ -4545,8 +4544,7 @@ static void __devexit megasas_detach_one(struct pci_dev *pdev) /* cancel the delayed work if this work still in queue*/ if (instance->ev != NULL) { struct megasas_aen_event *ev = instance->ev; - cancel_delayed_work_sync( - (struct delayed_work *)&ev->hotplug_work); + cancel_delayed_work_sync(&ev->hotplug_work); instance->ev = NULL; } @@ -5190,7 +5188,7 @@ static void megasas_aen_polling(struct work_struct *work) { struct megasas_aen_event *ev = - container_of(work, struct megasas_aen_event, hotplug_work); + container_of(work, struct megasas_aen_event, hotplug_work.work); struct megasas_instance *instance = ev->instance; union megasas_evt_class_locale class_locale; struct Scsi_Host *host; -- cgit v0.10.2 From ac53c4fca42c394d8a06c7a470ae2d1d50503717 Mon Sep 17 00:00:00 2001 From: David Daney Date: Mon, 3 Dec 2012 12:44:26 -0800 Subject: MIPS: Avoid mcheck by flushing page range in huge_ptep_set_access_flags() Problem: 1) Huge page mapping of anonymous memory is initially invalid. Will be faulted in by copy-on-write mechanism. 2) Userspace attempts store at the end of the huge mapping. 3) TLB Refill exception handler fill TLB with a normal (4K sized) invalid page at the end of the huge mapping virtual address range. 4) Userspace restarted, and re-attempts the store at the end of the huge mapping. 5) Page from #3 is invalid, we get a fault and go to the hugepage fault handler. This tries to map a huge page and calls huge_ptep_set_access_flags() to install the mapping. 6) We just call the generic ptep_set_access_flags() to set up the page tables, but the flush there assumes a normal (4K sized) page and only tries to flush the first part of the huge page virtual address out of the TLB, since the existing entry from step #3 doesn't conflict, nothing is flushed. 7) We attempt to load the mapping into the TLB, but because it conflicts with the entry from step #3, we get a Machine Check exception. The fix: Flush the entire rage covered by the huge page in huge_ptep_set_access_flags(), and remove the optimization in local_flush_tlb_range() so that the flush actually does the correct thing. Signed-off-by: David Daney Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Hillf Danton Patchwork: https://patchwork.linux-mips.org/patch/4661/ Signed-off-by: Ralf Baechle (cherry picked from commit dd617f258cc39d36be26afee9912624a2d23112c) diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h index bd94946..ef99db9 100644 --- a/arch/mips/include/asm/hugetlb.h +++ b/arch/mips/include/asm/hugetlb.h @@ -95,7 +95,17 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, pte_t *ptep, pte_t pte, int dirty) { - return ptep_set_access_flags(vma, addr, ptep, pte, dirty); + int changed = !pte_same(*ptep, pte); + + if (changed) { + set_pte_at(vma->vm_mm, addr, ptep, pte); + /* + * There could be some standard sized pages in there, + * get them all. + */ + flush_tlb_range(vma, addr, addr + HPAGE_SIZE); + } + return changed; } static inline pte_t huge_ptep_get(pte_t *ptep) diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c index 4b9b935..88e79ad 100644 --- a/arch/mips/mm/tlb-r4k.c +++ b/arch/mips/mm/tlb-r4k.c @@ -120,18 +120,11 @@ void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, if (cpu_context(cpu, mm) != 0) { unsigned long size, flags; - int huge = is_vm_hugetlb_page(vma); ENTER_CRITICAL(flags); - if (huge) { - start = round_down(start, HPAGE_SIZE); - end = round_up(end, HPAGE_SIZE); - size = (end - start) >> HPAGE_SHIFT; - } else { - start = round_down(start, PAGE_SIZE << 1); - end = round_up(end, PAGE_SIZE << 1); - size = (end - start) >> (PAGE_SHIFT + 1); - } + start = round_down(start, PAGE_SIZE << 1); + end = round_up(end, PAGE_SIZE << 1); + size = (end - start) >> (PAGE_SHIFT + 1); if (size <= current_cpu_data.tlbsize/2) { int oldpid = read_c0_entryhi(); int newpid = cpu_asid(cpu, mm); @@ -140,10 +133,7 @@ void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, int idx; write_c0_entryhi(start | newpid); - if (huge) - start += HPAGE_SIZE; - else - start += (PAGE_SIZE << 1); + start += (PAGE_SIZE << 1); mtc0_tlbw_hazard(); tlb_probe(); tlb_probe_hazard(); -- cgit v0.10.2 From fc4b514f2727f74a4587c31db87e0e93465518c3 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 4 Dec 2012 07:40:39 -0800 Subject: workqueue: convert BUG_ON()s in __queue_delayed_work() to WARN_ON_ONCE()s 8852aac25e ("workqueue: mod_delayed_work_on() shouldn't queue timer on 0 delay") unexpectedly uncovered a very nasty abuse of delayed_work in megaraid - it allocated work_struct, casted it to delayed_work and then pass that into queue_delayed_work(). Previously, this was okay because 0 @delay short-circuited to queue_work() before doing anything with delayed_work. 8852aac25e moved 0 @delay test into __queue_delayed_work() after sanity check on delayed_work making megaraid trigger BUG_ON(). Although megaraid is already fixed by c1d390d8e6 ("megaraid: fix BUG_ON() from incorrect use of delayed work"), this patch converts BUG_ON()s in __queue_delayed_work() to WARN_ON_ONCE()s so that such abusers, if there are more, trigger warning but don't crash the machine. Signed-off-by: Tejun Heo Cc: Xiaotian Feng diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 084aa47..1dae900 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1361,8 +1361,8 @@ static void __queue_delayed_work(int cpu, struct workqueue_struct *wq, WARN_ON_ONCE(timer->function != delayed_work_timer_fn || timer->data != (unsigned long)dwork); - BUG_ON(timer_pending(timer)); - BUG_ON(!list_empty(&work->entry)); + WARN_ON_ONCE(timer_pending(timer)); + WARN_ON_ONCE(!list_empty(&work->entry)); /* * If @delay is 0, queue @dwork->work immediately. This is for -- cgit v0.10.2 From 57302e0ddf8a210a66fd8a1a2fa50844863b5ded Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 4 Dec 2012 08:25:11 -0800 Subject: vfs: avoid "attempt to access beyond end of device" warnings The block device access simplification that avoided accessing the (racy) block size information (commit bbec0270bdd8: "blkdev_max_block: make private to fs/buffer.c") no longer checks the maximum block size in the block mapping path. That was _almost_ as simple as just removing the code entirely, because the readers and writers all check the size of the device anyway, so under normal circumstances it "just worked". However, the block size may be such that the end of the device may straddle one single buffer_head. At which point we may still want to access the end of the device, but the buffer we use to access it partially extends past the end. The 'bd_set_size()' function intentionally sets the block size to avoid this, but mounting the device - or setting the block size by hand to some other value - can modify that block size. So instead, teach 'submit_bh()' about the special case of the buffer head straddling the end of the device, and turning such an access into a smaller IO access, avoiding the problem. This, btw, also means that unlike before, we can now access the whole device regardless of device block size setting. So now, even if the device size is only 512-byte aligned, we can read and write even the last sector even when having a much bigger block size for accessing the rest of the device. So with this, we could now get rid of the 'bd_set_size()' block size code entirely - resulting in faster IO for the common case - but that would be a separate patch. Reported-and-tested-by: Romain Francoise Reporeted-and-tested-by: Meelis Roos Reported-by: Tony Luck Signed-off-by: Linus Torvalds diff --git a/fs/buffer.c b/fs/buffer.c index 3586fb0..c4e1139 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -2893,6 +2893,55 @@ static void end_bio_bh_io_sync(struct bio *bio, int err) bio_put(bio); } +/* + * This allows us to do IO even on the odd last sectors + * of a device, even if the bh block size is some multiple + * of the physical sector size. + * + * We'll just truncate the bio to the size of the device, + * and clear the end of the buffer head manually. + * + * Truly out-of-range accesses will turn into actual IO + * errors, this only handles the "we need to be able to + * do IO at the final sector" case. + */ +static void guard_bh_eod(int rw, struct bio *bio, struct buffer_head *bh) +{ + sector_t maxsector; + unsigned bytes; + + maxsector = i_size_read(bio->bi_bdev->bd_inode) >> 9; + if (!maxsector) + return; + + /* + * If the *whole* IO is past the end of the device, + * let it through, and the IO layer will turn it into + * an EIO. + */ + if (unlikely(bio->bi_sector >= maxsector)) + return; + + maxsector -= bio->bi_sector; + bytes = bio->bi_size; + if (likely((bytes >> 9) <= maxsector)) + return; + + /* Uhhuh. We've got a bh that straddles the device size! */ + bytes = maxsector << 9; + + /* Truncate the bio.. */ + bio->bi_size = bytes; + bio->bi_io_vec[0].bv_len = bytes; + + /* ..and clear the end of the buffer for reads */ + if (rw & READ) { + void *kaddr = kmap_atomic(bh->b_page); + memset(kaddr + bh_offset(bh) + bytes, 0, bh->b_size - bytes); + kunmap_atomic(kaddr); + } +} + int submit_bh(int rw, struct buffer_head * bh) { struct bio *bio; @@ -2929,6 +2978,9 @@ int submit_bh(int rw, struct buffer_head * bh) bio->bi_end_io = end_bio_bh_io_sync; bio->bi_private = bh; + /* Take care of bh's that straddle the end of the device */ + guard_bh_eod(rw, bio, bh); + bio_get(bio); submit_bio(rw, bio); -- cgit v0.10.2 From d5563715a30706b54ad9ec978b30b81d3fb320f3 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 4 Dec 2012 17:40:44 +0100 Subject: MIPS: N32: Fix preadv(2) and pwritev(2) entry points. By using the native syscall entry point the kernel was also expecting 64-bit iovec structures. This is broken since ddd9e91b71072b8ebe89311c3a44b077defa1756 [preadv/ pwritev: MIPS: Add preadv(2) and pwritev(2) syscalls.] which originally added these two syscalls. I walked through piles of code, including libc and couldn't find anything that would have worked around the issue so this change the API to what it should always have been. Noticed and patch suggested by Al Viro. Signed-off-by: Ralf Baechle diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index f6ba838..ad8b657 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -403,8 +403,8 @@ EXPORT(sysn32_call_table) PTR sys_dup3 /* 6290 */ PTR sys_pipe2 PTR sys_inotify_init1 - PTR sys_preadv - PTR sys_pwritev + PTR compat_sys_preadv + PTR compat_sys_pwritev PTR compat_sys_rt_tgsigqueueinfo /* 6295 */ PTR sys_perf_event_open PTR sys_accept4 -- cgit v0.10.2 From 8d4516904b39507458bee8115793528e12b1d8dd Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 4 Dec 2012 18:59:34 +0100 Subject: watchdog: Fix CPU hotplug regression Norbert reported: "3.7-rc6 booted with nmi_watchdog=0 fails to suspend to RAM or offline CPUs. It's reproducable with a KVM guest and physical system." The reason is that commit bcd951cf(watchdog: Use hotplug thread infrastructure) missed to take this into account. So the cpu offline code gets stuck in the teardown function because it accesses non initialized data structures. Add a check for watchdog_enabled into that path to cure the issue. Reported-and-tested-by: Norbert Warmuth Tested-by: Joseph Salisbury Link: http://lkml.kernel.org/r/alpine.LFD.2.02.1211231033230.2701@ionos Link: http://bugs.launchpad.net/bugs/1079534 Signed-off-by: Thomas Gleixner diff --git a/kernel/watchdog.c b/kernel/watchdog.c index dd4b80a..c8c21be 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -368,6 +368,9 @@ static void watchdog_disable(unsigned int cpu) { struct hrtimer *hrtimer = &__raw_get_cpu_var(watchdog_hrtimer); + if (!watchdog_enabled) + return; + watchdog_set_prio(SCHED_NORMAL, 0); hrtimer_cancel(hrtimer); /* disable the perf event */ -- cgit v0.10.2 From 12e130b04580532aa099893158aa2776b321ae7f Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 22 Oct 2012 15:05:48 +0100 Subject: MODSIGN: Don't use enum-type bitfields in module signature info block Don't use enum-type bitfields in the module signature info block as we can't be certain how the compiler will handle them. As I understand it, it is arch dependent, and it is possible for the compiler to rearrange them based on endianness and to insert a byte of padding to pad the three enums out to four bytes. Instead use u8 fields for these, which the compiler should emit in the right order without padding. Signed-off-by: David Howells Signed-off-by: Rusty Russell diff --git a/kernel/module_signing.c b/kernel/module_signing.c index ea1b1df..f2970bd 100644 --- a/kernel/module_signing.c +++ b/kernel/module_signing.c @@ -27,13 +27,13 @@ * - Information block */ struct module_signature { - enum pkey_algo algo : 8; /* Public-key crypto algorithm */ - enum pkey_hash_algo hash : 8; /* Digest algorithm */ - enum pkey_id_type id_type : 8; /* Key identifier type */ - u8 signer_len; /* Length of signer's name */ - u8 key_id_len; /* Length of key identifier */ - u8 __pad[3]; - __be32 sig_len; /* Length of signature data */ + u8 algo; /* Public-key crypto algorithm [enum pkey_algo] */ + u8 hash; /* Digest algorithm [enum pkey_hash_algo] */ + u8 id_type; /* Key identifier type [enum pkey_id_type] */ + u8 signer_len; /* Length of signer's name */ + u8 key_id_len; /* Length of key identifier */ + u8 __pad[3]; + __be32 sig_len; /* Length of signature data */ }; /* -- cgit v0.10.2 From f3537f91f9be2ce5fcbaa1aa6d787ad0436daec6 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 22 Oct 2012 15:05:55 +0100 Subject: ASN.1: Fix an indefinite length skip error Fix an error in asn1_find_indefinite_length() whereby small definite length elements of size 0x7f are incorrecly classified as non-small. Without this fix, an error will be given as the length of the length will be perceived as being very much greater than the maximum supported size. Signed-off-by: David Howells Signed-off-by: Rusty Russell diff --git a/lib/asn1_decoder.c b/lib/asn1_decoder.c index de2c8b5..5293d24 100644 --- a/lib/asn1_decoder.c +++ b/lib/asn1_decoder.c @@ -91,7 +91,7 @@ next_tag: /* Extract the length */ len = data[dp++]; - if (len < 0x7f) { + if (len <= 0x7f) { dp += len; goto next_tag; } -- cgit v0.10.2 From 27d7c2a006a81c04fab00b8cd81b99af3b32738d Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 5 Dec 2012 20:01:24 +0300 Subject: vfs: clear to the end of the buffer on partial buffer reads READ is zero so the "rw & READ" test is always false. The intended test was "((rw & RW_MASK) == READ)". Signed-off-by: Dan Carpenter Signed-off-by: Linus Torvalds diff --git a/fs/buffer.c b/fs/buffer.c index c4e1139..ec0aca8 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -2935,7 +2935,7 @@ static void guard_bh_eod(int rw, struct bio *bio, struct buffer_head *bh) bio->bi_io_vec[0].bv_len = bytes; /* ..and clear the end of the buffer for reads */ - if (rw & READ) { + if ((rw & RW_MASK) == READ) { void *kaddr = kmap_atomic(bh->b_page); memset(kaddr + bh_offset(bh) + bytes, 0, bh->b_size - bytes); kunmap_atomic(kaddr); -- cgit v0.10.2 From 97daa768010296d393196cbcd77549ce436a4a54 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 4 Dec 2012 18:50:48 +0100 Subject: MIPS: N32: Fix signalfd4 syscall entry point This needs to use the compat entry point or it's going to fail on big endian systems. Noticed by Al Viro. Signed-off-by: Ralf Baechle diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index ad8b657..86ec03f 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -397,7 +397,7 @@ EXPORT(sysn32_call_table) PTR sys_timerfd_create PTR compat_sys_timerfd_gettime /* 6285 */ PTR compat_sys_timerfd_settime - PTR sys_signalfd4 + PTR compat_sys_signalfd4 PTR sys_eventfd2 PTR sys_epoll_create1 PTR sys_dup3 /* 6290 */ -- cgit v0.10.2 From 2d33976fb395a5b9cb00f2c24132b3f272eb9a9d Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Fri, 8 Jun 2012 07:10:27 +0100 Subject: MIPS: R3000/R3081: Fix CPU detection. Broken since e05ea74fc56f347f872ef9946d27c53e8bf20864 (lmo) rsp. cea7e2dfdef53fe55f359d00da562a268be06fd2 (kernel.org) [MIPS: Sort out CPU type to name translation.] These CPUs are no longer very popular to say the least ... Signed-off-by: Ralf Baechle Reported-by: Murphy McCauley diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index b1fb7af..cce3782 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -510,7 +510,6 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) c->cputype = CPU_R3000A; __cpu_name[cpu] = "R3000A"; } - break; } else { c->cputype = CPU_R3000; __cpu_name[cpu] = "R3000"; -- cgit v0.10.2 From c90e6fbb220d44988cb65af3707367c57cdb65a8 Mon Sep 17 00:00:00 2001 From: Dmitry Adamushko Date: Thu, 5 Apr 2012 20:37:34 +0200 Subject: MIPS: Fix endless loop when processing signals for kernel tasks The problem occurs [1] when a kernel-mode task returns from a system call with a pending signal. A real-life scenario is a child of 'khelper' returning from a failed kernel_execve() in ____call_usermodehelper() [ kernel/kmod.c ]. kernel_execve() fails due to a pending SIGKILL, which is the result of "kill -9 -1" (at least, busybox's init does it upon reboot). The loop is as follows: * syscall_exit_work: - work_pending: // start_of_the_loop - work_notifysig: - do_notify_resume() - do_signal() - if (!user_mode(regs)) return; - resume_userspace // TIF_SIGPENDING is still set - work_pending // so we call work_pending => goto // start_of_the_loop More information can be found in another LKML thread: http://www.serverphorums.com/read.php?12,457826 [1] The problem was also reproduced on !CONFIG_VM86 x86, and the following fix was accepted. http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=29a2e2836ff9ea65a603c89df217f4198973a74f Signed-off-by: Dmitry Adamushko Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3571/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S index a6c1332..9b00362 100644 --- a/arch/mips/kernel/entry.S +++ b/arch/mips/kernel/entry.S @@ -36,6 +36,11 @@ FEXPORT(ret_from_exception) FEXPORT(ret_from_irq) LONG_S s0, TI_REGS($28) FEXPORT(__ret_from_irq) +/* + * We can be coming here from a syscall done in the kernel space, + * e.g. a failed kernel_execve(). + */ +resume_userspace_check: LONG_L t0, PT_STATUS(sp) # returning to kernel mode? andi t0, t0, KU_USER beqz t0, resume_kernel @@ -162,7 +167,7 @@ work_notifysig: # deal with pending signals and move a0, sp li a1, 0 jal do_notify_resume # a2 already loaded - j resume_userspace + j resume_userspace_check FEXPORT(syscall_exit_partial) local_irq_disable # make sure need_resched doesn't -- cgit v0.10.2 From 527897ccd968c86ad3265d62962c8beccdb94e47 Mon Sep 17 00:00:00 2001 From: Tim Gardner Date: Tue, 4 Dec 2012 12:52:28 -0700 Subject: lib/Makefile: Fix oid_registry build dependency It is $(obj)/oid_registry.o that is dependent on $(obj)/oid_registry_data.c. The object file cannot be built until $(obj)/oid_registry_data.c has been generated. A periodic and hard to reproduce parallel build failure is due to this incorrect lib/Makefile dependency. The compile error is completely disingenuous. GEN lib/oid_registry_data.c Compiling 49 OIDs CC lib/oid_registry.o gcc: error: lib/oid_registry.c: No such file or directory gcc: fatal error: no input files compilation terminated. make[3]: *** [lib/oid_registry.o] Error 4 Cc: Andrew Morton Cc: Akinobu Mita Cc: Michel Lespinasse Cc: David Howells Cc: "David S. Miller" Signed-off-by: Tim Gardner Signed-off-by: Rusty Russell diff --git a/lib/Makefile b/lib/Makefile index 821a162..a08b791 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -163,7 +163,7 @@ $(obj)/crc32table.h: $(obj)/gen_crc32table # obj-$(CONFIG_OID_REGISTRY) += oid_registry.o -$(obj)/oid_registry.c: $(obj)/oid_registry_data.c +$(obj)/oid_registry.o: $(obj)/oid_registry_data.c $(obj)/oid_registry_data.c: $(srctree)/include/linux/oid_registry.h \ $(src)/build_OID_registry -- cgit v0.10.2 From fe007c02f9659f5c0ae6f3ceaf45076df92cc88e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Heiko=20St=C3=BCbner?= Date: Sun, 18 Nov 2012 19:50:05 +0100 Subject: mmc: sdhci-s3c: fix missing clock for gpio card-detect 2abeb5c5ded2 ("Add clk_(enable/disable) in runtime suspend/resume") added the capability to stop the clocks when the device is runtime suspended, but forgot to handle the case of the card-detect using an external gpio. Therefore in the case that runtime-pm is enabled, start the io-clock when a card is inserted and stop it again once it is removed. Signed-off-by: Heiko Stuebner Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index a54dd5d..c9ec725 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -373,18 +373,25 @@ static struct sdhci_ops sdhci_s3c_ops = { static void sdhci_s3c_notify_change(struct platform_device *dev, int state) { struct sdhci_host *host = platform_get_drvdata(dev); + struct sdhci_s3c *sc = sdhci_priv(host); unsigned long flags; if (host) { spin_lock_irqsave(&host->lock, flags); if (state) { dev_dbg(&dev->dev, "card inserted.\n"); +#ifdef CONFIG_PM_RUNTIME + clk_prepare_enable(sc->clk_io); +#endif host->flags &= ~SDHCI_DEVICE_DEAD; host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION; } else { dev_dbg(&dev->dev, "card removed.\n"); host->flags |= SDHCI_DEVICE_DEAD; host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION; +#ifdef CONFIG_PM_RUNTIME + clk_disable_unprepare(sc->clk_io); +#endif } tasklet_schedule(&host->card_tasklet); spin_unlock_irqrestore(&host->lock, flags); -- cgit v0.10.2 From 6984f3c31bb57cb7491dbec1be44b74bd00f4648 Mon Sep 17 00:00:00 2001 From: Chris Ball Date: Mon, 3 Dec 2012 09:17:19 -0500 Subject: Revert misapplied "mmc: sh-mmcif: avoid oops on spurious interrupts" This reverts commit 8464dd52d3198dd05, which was a misapplied debugging version of the patch, not the final patch itself. Signed-off-by: Chris Ball Cc: stable@vger.kernel.org diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index d25bc97..43cd0b5 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -1231,10 +1231,6 @@ static irqreturn_t sh_mmcif_intr(int irq, void *dev_id) host->sd_error = true; dev_dbg(&host->pd->dev, "int err state = %08x\n", state); } - if (host->state == STATE_IDLE) { - dev_info(&host->pd->dev, "Spurious IRQ status 0x%x", state); - return IRQ_HANDLED; - } if (state & ~(INT_CMD12RBE | INT_CMD12CRE)) { if (!host->dma_active) return IRQ_WAKE_THREAD; -- cgit v0.10.2 From 91ab252ac5a5c3461dd6910797611e9172626aed Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Wed, 22 Aug 2012 06:49:47 +0000 Subject: mmc: sh-mmcif: avoid oops on spurious interrupts (second try) On some systems, e.g., kzm9g, MMCIF interfaces can produce spurious interrupts without any active request. To prevent the Oops, that results in such cases, don't dereference the mmc request pointer until we make sure, that we are indeed processing such a request. Reported-by: Tetsuyuki Kobayashi Signed-off-by: Guennadi Liakhovetski Tested-by: Tetsuyuki Kobayashi Cc: stable@vger.kernel.org Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index 43cd0b5..7eaee3e 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -1104,7 +1104,6 @@ static irqreturn_t sh_mmcif_irqt(int irq, void *dev_id) { struct sh_mmcif_host *host = dev_id; struct mmc_request *mrq = host->mrq; - struct mmc_data *data = mrq->data; cancel_delayed_work_sync(&host->timeout_work); @@ -1152,13 +1151,14 @@ static irqreturn_t sh_mmcif_irqt(int irq, void *dev_id) case MMCIF_WAIT_FOR_READ_END: case MMCIF_WAIT_FOR_WRITE_END: if (host->sd_error) - data->error = sh_mmcif_error_manage(host); + mrq->data->error = sh_mmcif_error_manage(host); break; default: BUG(); } if (host->wait_for != MMCIF_WAIT_FOR_STOP) { + struct mmc_data *data = mrq->data; if (!mrq->cmd->error && data && !data->error) data->bytes_xfered = data->blocks * data->blksz; -- cgit v0.10.2 From 60177d31d215bc2b4c5a7aa6f742800e04fa0a92 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Thu, 6 Dec 2012 19:01:14 +0000 Subject: mm: compaction: validate pfn range passed to isolate_freepages_block Commit 0bf380bc70ec ("mm: compaction: check pfn_valid when entering a new MAX_ORDER_NR_PAGES block during isolation for migration") added a check for pfn_valid() when isolating pages for migration as the scanner does not necessarily start pageblock-aligned. Since commit c89511ab2f8f ("mm: compaction: Restart compaction from near where it left off"), the free scanner has the same problem. This patch makes sure that the pfn range passed to isolate_freepages_block() is within the same block so that pfn_valid() checks are unnecessary. In answer to Henrik's wondering why others have not reported this: reproducing this requires a large enough hole with the right aligment to have compaction walk into a PFN range with no memmap. Size and alignment depends in the memory model - 4M for FLATMEM and 128M for SPARSEMEM on x86. It needs a "lucky" machine. Reported-by: Henrik Rydberg Signed-off-by: Mel Gorman Signed-off-by: Linus Torvalds diff --git a/mm/compaction.c b/mm/compaction.c index 9eef558..694eaab 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -713,7 +713,15 @@ static void isolate_freepages(struct zone *zone, /* Found a block suitable for isolating free pages from */ isolated = 0; - end_pfn = min(pfn + pageblock_nr_pages, zone_end_pfn); + + /* + * As pfn may not start aligned, pfn+pageblock_nr_page + * may cross a MAX_ORDER_NR_PAGES boundary and miss + * a pfn_valid check. Ensure isolate_freepages_block() + * only scans within a pageblock + */ + end_pfn = ALIGN(pfn + 1, pageblock_nr_pages); + end_pfn = min(end_pfn, zone_end_pfn); isolated = isolate_freepages_block(cc, pfn, end_pfn, freelist, false); nr_freepages += isolated; -- cgit v0.10.2 From c702418f8a2fa6cc92e84a39880d458faf7af9cc Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Tue, 4 Dec 2012 11:11:31 -0500 Subject: mm: vmscan: do not keep kswapd looping forever due to individual uncompactable zones When a zone meets its high watermark and is compactable in case of higher order allocations, it contributes to the percentage of the node's memory that is considered balanced. This requirement, that a node be only partially balanced, came about when kswapd was desparately trying to balance tiny zones when all bigger zones in the node had plenty of free memory. Arguably, the same should apply to compaction: if a significant part of the node is balanced enough to run compaction, do not get hung up on that tiny zone that might never get in shape. When the compaction logic in kswapd is reached, we know that at least 25% of the node's memory is balanced properly for compaction (see zone_balanced and pgdat_balanced). Remove the individual zone checks that restart the kswapd cycle. Otherwise, we may observe more endless looping in kswapd where the compaction code loops back to reclaim because of a single zone and reclaim does nothing because the node is considered balanced overall. See for example https://bugzilla.redhat.com/show_bug.cgi?id=866988 Signed-off-by: Johannes Weiner Reported-and-tested-by: Thorsten Leemhuis Reported-by: Jiri Slaby Tested-by: John Ellson Tested-by: Zdenek Kabelac Tested-by: Bruno Wolff III Signed-off-by: Linus Torvalds diff --git a/mm/vmscan.c b/mm/vmscan.c index 83f4d0e..124bbfe 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2823,22 +2823,6 @@ out: if (!populated_zone(zone)) continue; - if (zone->all_unreclaimable && - sc.priority != DEF_PRIORITY) - continue; - - /* Would compaction fail due to lack of free memory? */ - if (COMPACTION_BUILD && - compaction_suitable(zone, order) == COMPACT_SKIPPED) - goto loop_again; - - /* Confirm the zone is balanced for order-0 */ - if (!zone_watermark_ok(zone, 0, - high_wmark_pages(zone), 0, 0)) { - order = sc.order = 0; - goto loop_again; - } - /* Check if the memory needs to be defragmented. */ if (zone_watermark_ok(zone, order, low_wmark_pages(zone), *classzone_idx, 0)) -- cgit v0.10.2 From 18a2f371f5edf41810f6469cb9be39931ef9deb9 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Wed, 5 Dec 2012 14:01:41 -0800 Subject: tmpfs: fix shared mempolicy leak This fixes a regression in 3.7-rc, which has since gone into stable. Commit 00442ad04a5e ("mempolicy: fix a memory corruption by refcount imbalance in alloc_pages_vma()") changed get_vma_policy() to raise the refcount on a shmem shared mempolicy; whereas shmem_alloc_page() went on expecting alloc_page_vma() to drop the refcount it had acquired. This deserves a rework: but for now fix the leak in shmem_alloc_page(). Hugh: shmem_swapin() did not need a fix, but surely it's clearer to use the same refcounting there as in shmem_alloc_page(), delete its onstack mempolicy, and the strange mpol_cond_copy() and __mpol_cond_copy() - those were invented to let swapin_readahead() make an unknown number of calls to alloc_pages_vma() with one mempolicy; but since 00442ad04a5e, alloc_pages_vma() has kept refcount in balance, so now no problem. Reported-and-tested-by: Tommi Rantala Signed-off-by: Mel Gorman Signed-off-by: Hugh Dickins Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h index e5ccb9d..dbd2127 100644 --- a/include/linux/mempolicy.h +++ b/include/linux/mempolicy.h @@ -82,16 +82,6 @@ static inline void mpol_cond_put(struct mempolicy *pol) __mpol_put(pol); } -extern struct mempolicy *__mpol_cond_copy(struct mempolicy *tompol, - struct mempolicy *frompol); -static inline struct mempolicy *mpol_cond_copy(struct mempolicy *tompol, - struct mempolicy *frompol) -{ - if (!frompol) - return frompol; - return __mpol_cond_copy(tompol, frompol); -} - extern struct mempolicy *__mpol_dup(struct mempolicy *pol); static inline struct mempolicy *mpol_dup(struct mempolicy *pol) { @@ -215,12 +205,6 @@ static inline void mpol_cond_put(struct mempolicy *pol) { } -static inline struct mempolicy *mpol_cond_copy(struct mempolicy *to, - struct mempolicy *from) -{ - return from; -} - static inline void mpol_get(struct mempolicy *pol) { } diff --git a/mm/mempolicy.c b/mm/mempolicy.c index d04a8a5..4ea600d 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -2037,28 +2037,6 @@ struct mempolicy *__mpol_dup(struct mempolicy *old) return new; } -/* - * If *frompol needs [has] an extra ref, copy *frompol to *tompol , - * eliminate the * MPOL_F_* flags that require conditional ref and - * [NOTE!!!] drop the extra ref. Not safe to reference *frompol directly - * after return. Use the returned value. - * - * Allows use of a mempolicy for, e.g., multiple allocations with a single - * policy lookup, even if the policy needs/has extra ref on lookup. - * shmem_readahead needs this. - */ -struct mempolicy *__mpol_cond_copy(struct mempolicy *tompol, - struct mempolicy *frompol) -{ - if (!mpol_needs_cond_ref(frompol)) - return frompol; - - *tompol = *frompol; - tompol->flags &= ~MPOL_F_SHARED; /* copy doesn't need unref */ - __mpol_put(frompol); - return tompol; -} - /* Slow path of a mempolicy comparison */ bool __mpol_equal(struct mempolicy *a, struct mempolicy *b) { diff --git a/mm/shmem.c b/mm/shmem.c index 89341b6..50c5b8f 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -910,25 +910,29 @@ static struct mempolicy *shmem_get_sbmpol(struct shmem_sb_info *sbinfo) static struct page *shmem_swapin(swp_entry_t swap, gfp_t gfp, struct shmem_inode_info *info, pgoff_t index) { - struct mempolicy mpol, *spol; struct vm_area_struct pvma; - - spol = mpol_cond_copy(&mpol, - mpol_shared_policy_lookup(&info->policy, index)); + struct page *page; /* Create a pseudo vma that just contains the policy */ pvma.vm_start = 0; /* Bias interleave by inode number to distribute better across nodes */ pvma.vm_pgoff = index + info->vfs_inode.i_ino; pvma.vm_ops = NULL; - pvma.vm_policy = spol; - return swapin_readahead(swap, gfp, &pvma, 0); + pvma.vm_policy = mpol_shared_policy_lookup(&info->policy, index); + + page = swapin_readahead(swap, gfp, &pvma, 0); + + /* Drop reference taken by mpol_shared_policy_lookup() */ + mpol_cond_put(pvma.vm_policy); + + return page; } static struct page *shmem_alloc_page(gfp_t gfp, struct shmem_inode_info *info, pgoff_t index) { struct vm_area_struct pvma; + struct page *page; /* Create a pseudo vma that just contains the policy */ pvma.vm_start = 0; @@ -937,10 +941,12 @@ static struct page *shmem_alloc_page(gfp_t gfp, pvma.vm_ops = NULL; pvma.vm_policy = mpol_shared_policy_lookup(&info->policy, index); - /* - * alloc_page_vma() will drop the shared policy reference - */ - return alloc_page_vma(gfp, &pvma, 0); + page = alloc_page_vma(gfp, &pvma, 0); + + /* Drop reference taken by mpol_shared_policy_lookup() */ + mpol_cond_put(pvma.vm_policy); + + return page; } #else /* !CONFIG_NUMA */ #ifdef CONFIG_TMPFS -- cgit v0.10.2 From 93b174ad71b08e504c2cf6e8a58ecce778b77a40 Mon Sep 17 00:00:00 2001 From: Yuchung Cheng Date: Thu, 6 Dec 2012 08:45:32 +0000 Subject: tcp: bug fix Fast Open client retransmission If SYN-ACK partially acks SYN-data, the client retransmits the remaining data by tcp_retransmit_skb(). This increments lost recovery state variables like tp->retrans_out in Open state. If loss recovery happens before the retransmission is acked, it triggers the WARN_ON check in tcp_fastretrans_alert(). For example: the client sends SYN-data, gets SYN-ACK acking only ISN, retransmits data, sends another 4 data packets and get 3 dupacks. Since the retransmission is not caused by network drop it should not update the recovery state variables. Further the server may return a smaller MSS than the cached MSS used for SYN-data, so the retranmission needs a loop. Otherwise some data will not be retransmitted until timeout or other loss recovery events. Signed-off-by: Yuchung Cheng Acked-by: Neal Cardwell Signed-off-by: David S. Miller diff --git a/include/net/tcp.h b/include/net/tcp.h index 6feeccd..4af45e3 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -525,6 +525,7 @@ static inline __u32 cookie_v6_init_sequence(struct sock *sk, extern void __tcp_push_pending_frames(struct sock *sk, unsigned int cur_mss, int nonagle); extern bool tcp_may_send_now(struct sock *sk); +extern int __tcp_retransmit_skb(struct sock *, struct sk_buff *); extern int tcp_retransmit_skb(struct sock *, struct sk_buff *); extern void tcp_retransmit_timer(struct sock *sk); extern void tcp_xmit_retransmit_queue(struct sock *); diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 609ff98..181fc82 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -5645,7 +5645,11 @@ static bool tcp_rcv_fastopen_synack(struct sock *sk, struct sk_buff *synack, tcp_fastopen_cache_set(sk, mss, cookie, syn_drop); if (data) { /* Retransmit unacked data in SYN */ - tcp_retransmit_skb(sk, data); + tcp_for_write_queue_from(data, sk) { + if (data == tcp_send_head(sk) || + __tcp_retransmit_skb(sk, data)) + break; + } tcp_rearm_rto(sk); return true; } diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 2798706..948ac27 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2309,12 +2309,11 @@ static void tcp_retrans_try_collapse(struct sock *sk, struct sk_buff *to, * state updates are done by the caller. Returns non-zero if an * error occurred which prevented the send. */ -int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb) +int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb) { struct tcp_sock *tp = tcp_sk(sk); struct inet_connection_sock *icsk = inet_csk(sk); unsigned int cur_mss; - int err; /* Inconslusive MTU probe */ if (icsk->icsk_mtup.probe_size) { @@ -2387,11 +2386,17 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb) if (unlikely(NET_IP_ALIGN && ((unsigned long)skb->data & 3))) { struct sk_buff *nskb = __pskb_copy(skb, MAX_TCP_HEADER, GFP_ATOMIC); - err = nskb ? tcp_transmit_skb(sk, nskb, 0, GFP_ATOMIC) : - -ENOBUFS; + return nskb ? tcp_transmit_skb(sk, nskb, 0, GFP_ATOMIC) : + -ENOBUFS; } else { - err = tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC); + return tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC); } +} + +int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb) +{ + struct tcp_sock *tp = tcp_sk(sk); + int err = __tcp_retransmit_skb(sk, skb); if (err == 0) { /* Update global TCP statistics. */ -- cgit v0.10.2 From c3c7c254b2e8cd99b0adf288c2a1bddacd7ba255 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 6 Dec 2012 13:54:59 +0000 Subject: net: gro: fix possible panic in skb_gro_receive() commit 2e71a6f8084e (net: gro: selective flush of packets) added a bug for skbs using frag_list. This part of the GRO stack is rarely used, as it needs skb not using a page fragment for their skb->head. Most drivers do use a page fragment, but some of them use GFP_KERNEL allocations for the initial fill of their RX ring buffer. napi_gro_flush() overwrite skb->prev that was used for these skb to point to the last skb in frag_list. Fix this using a separate field in struct napi_gro_cb to point to the last fragment. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index f8eda02..a848ffc 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1488,6 +1488,9 @@ struct napi_gro_cb { /* Used in ipv6_gro_receive() */ int proto; + + /* used in skb_gro_receive() slow path */ + struct sk_buff *last; }; #define NAPI_GRO_CB(skb) ((struct napi_gro_cb *)(skb)->cb) diff --git a/net/core/dev.c b/net/core/dev.c index c0946cb..e5942bf 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -3451,6 +3451,8 @@ static int napi_gro_complete(struct sk_buff *skb) struct list_head *head = &ptype_base[ntohs(type) & PTYPE_HASH_MASK]; int err = -ENOENT; + BUILD_BUG_ON(sizeof(struct napi_gro_cb) > sizeof(skb->cb)); + if (NAPI_GRO_CB(skb)->count == 1) { skb_shinfo(skb)->gso_size = 0; goto out; diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 4007c14..3f0636c 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -3004,7 +3004,7 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb) skb_shinfo(nskb)->gso_size = pinfo->gso_size; pinfo->gso_size = 0; skb_header_release(p); - nskb->prev = p; + NAPI_GRO_CB(nskb)->last = p; nskb->data_len += p->len; nskb->truesize += p->truesize; @@ -3030,8 +3030,8 @@ merge: __skb_pull(skb, offset); - p->prev->next = skb; - p->prev = skb; + NAPI_GRO_CB(p)->last->next = skb; + NAPI_GRO_CB(p)->last = skb; skb_header_release(skb); done: -- cgit v0.10.2