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2012-12-19ipv6: addrconf.c: remove unnecessary "if"Cong Ding
the value of err is always negative if it goes to errout, so we don't need to check the value of err. Signed-off-by: Cong Ding <dinggnu@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19bridge: Correctly encode addresses when dumping mdb entriesVlad Yasevich
When dumping mdb table, set the addresses the kernel returns based on the address protocol type. Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Acked-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19bridge: Do not unregister all PF_BRIDGE rtnl operationsVlad Yasevich
Bridge fdb and link rtnl operations are registered in core/rtnetlink. Bridge mdb operations are registred in bridge/mdb. When removing bridge module, do not unregister ALL PF_BRIDGE ops since that would remove the ops from rtnetlink as well. Do remove mdb ops when bridge is destroyed. Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19use generic usbnet_manage_power()Oliver Neukum
This covers the drivers that can use a primitive implementation. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19usbnet: generic manage_power()Oliver Neukum
Centralise common code for manage_power() in usbnet by making a generic simple implementation Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19usbnet: handle PM failure gracefullyOliver Neukum
If a device fails to do remote wakeup, this is no reason to abort an open totally. This patch just continues without runtime PM. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19ksz884x: fix receive polling race conditionLennert Buytenhek
The ksz884x driver does receive processing in a custom tasklet, and seems to be assuming that since it takes its private interface spinlock with spin_lock_irq(), it won't be running concurrently with its own interrupt handler, as it cannot be preempted by it, but since its interrupt handler doesn't do any locking whatsoever, the receive processing tasklet and interrupt handler can end up running concurrently on different CPUs. As a result of this, the ksz884x receive path ends up locking up fairly easily, when the receive processing tasklet's reenabling of receive interrupts (due to it being done with polling the receive ring) races with the interrupt handler's disabling of receive interrupts (due to a new receive interrupt coming in) resulting in the receive interrupt being masked but the receive processing tasklet not being scheduled. Fix this by making the ksz884x interrupt handler take its private interface spinlock. This requires upgrading the spin_lock() in the transmit cleanup tasklet to a spin_lock_irq(), as otherwise the IRQ handler can preempt transmit cleanup and deadlock the system, but with those two changes, no more receive lockups have been observed. Reported-by: Chris Healy <cphealy@gmail.com> Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> ---- Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19qlcnic: update driver versionSigned-off-by: Sony Chacko
Signed-off-by: Sony Chacko <sony.chacko@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19qlcnic: fix unused variable warningsShahed Shaikh
qlcnic_hw.c:370: warning: variable cmd_desc set but not used qlcnic_hw.c:368: warning: variable consumer set but not used qlcnic_main.c:448: warning: variable ref_count set but not used qlcnic_main.c:534: warning: variable mem_base set but not used qlcnic_ctx.c:137: warning: variable tmp_tmpl set but not used qlcnic_ctx.c:133: warning: variable version set but not used qlcnic_minidump.c:200: warning: variable opcode set but not used Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: Sony Chacko <sony.chacko@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2012-12-19net: fec: forbid FEC_PTP on SoCs that do not supportShawn Guo
Beside imx6q, the kernel built from imx_v6_v7_defconfig is also supposed to be running on other IMX SoCs that do not have the PTP block. Before fec driver gets fixed to run-time detect target hardware rather than conditional compiling with #ifdef CONFIG_FEC_PTP, let's give it a quick fix in Kconfig to forbid FEC_PTP on those IMX SoCs that do not support PTP. Reported-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19be2net: fix wrong frag_idx reported by RX CQSathya Perla
The RX CQ can report completions with invalid frag_idx when the RXQ that was *previously* using it, was not cleaned up properly. This hits a BUG_ON() in be2net. When completion coalescing is enabled on a CQ, an explicit CQ-notify (with rearm) is needed for each compl, to flush partially coalesced CQ entries that are pending DMA. In be_close(), this fix now notifies CQ for each compl, waits explicitly for the flush compl to arrive and complains if it doesn't arrive. Also renaming be_crit_error() to be_hw_error() as it's the more appropriate name and to convey that we don't wait for the flush compl only when a HW error has occurred. Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19be2net: fix be_close() to ensure all events are ack'edSathya Perla
In be_close(), be_eq_clean() must be called after all RX/TX/MCC queues have been cleaned to ensure that any events caused while cleaning up completions are notified/acked. Not clearing all events can cause upredictable behaviour when RX rings are re-created in the subsequent be_open(). Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-18cdc_ether: cleanup: use USB_DEVICE_AND_INTERFACE_INFO for Novatel 551/E362Dan Williams
Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-18qmi_wwan/cdc_ether: add Dell Wireless 5800 (Novatel E362) USB IDsDan Williams
Signed-off-by: Dan Williams <dcbw@redhat.com> Cc: stable@vger.kernel.org Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-18atm: use scnprintf() instead of sprintf()chas williams - CONTRACTOR
As reported by Chen Gang <gang.chen@asianux.com>, we should ensure there is enough space when formatting the sysfs buffers. Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-18netlink: validate addr_len on bindHannes Frederic Sowa
Otherwise an out of bounds read could happen. Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-18netlink: change presentation of portid in procfs to unsignedHannes Frederic Sowa
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-18tuntap: fix sparse warningJason Wang
Make tun_enable_queue() static to fix the sparse warning: drivers/net/tun.c:399:19: sparse: symbol 'tun_enable_queue' was not declared. Should it be static? Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-17wireless: fix Atheros drivers compilationVladimir Kondratiev
Bug introduced in commit: wireless: allow Atheros card to not depend on ath.ko Commit in question changed CONFIG_ATH_COMMON to CONFIG_ATH_CARDS as "Atheros card" indication in drivers/net/wireless/ath/Kconfig but it is used also by drivers/net/wireless/Makefile If there are only Atheros cards that do not require ATH_COMMON, whole Makefile for Atheros cards was not executed; and as result, driver won't compile in this case. Change in CONFIG_ option name should be reflected in the drivers/net/wireless/Makefile Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Tested-by: Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-17rt2x00: zero-out rx_statusGabor Juhos
In commit 'mac80211: support radiotap vendor namespace RX data' new fields were added to 'struct ieee80211_rx_status' and those fileds must be zeroed. However the rt2x00 driver stores driver specific data in the cb array of the rx skbs, so the fields might contain garbage and this can cause unexpected behaviour. The rt2x00 driver from the compat-wireless-2012-12-01 tarball caused the following warning: WARNING: at /devel/ramips/build_dir/target-mipsel_r2_uClibc-0.9.33.2/linux-ramips_rt305x/ compat-wireless-2012-12-01/net/mac80211/rx.c:115 ieee80211_rx_irqsafe+0x274/0xbcc [mac80211]() Modules linked in: dwc_otg ledtrig_usbdev nf_nat_irc nf_nat_ftp nf_conntrack_irc nf_conntrack_ftp ipt_MASQUERADE iptable_nat nf_nat pppoe xt_conntrack xt_CT xt_NOTRACK iptable_raw xt_state nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack pppox ipt_REJECT xt_TCPMSS xt_comment xt_multiport xt_mac xt_limit iptable_mangle iptable_filter ip_tables xt_tcpudp x_tables ppp_async ppp_generic slhc rt2800pci(O) rt2800lib(O) rt2x00soc(O) rt2x00pci(O) rt2x00lib(O) mac80211(O) usbcore usb_common nls_base crc_itu_t crc_ccitt eeprom_93cx6 cfg80211(O) compat(O) arc4 aes_generic crypto_blkcipher cryptomgr aead crypto_hash crypto_algapi leds_gpio button_hotplug(O) gpio_keys_polled input_polldev input_core Call Trace: [<801e96b4>] dump_stack+0x8/0x34 [<80010a9c>] warn_slowpath_common+0x78/0xa4 [<80010ae0>] warn_slowpath_null+0x18/0x24 [<80a9710c>] ieee80211_rx_irqsafe+0x274/0xbcc [mac80211] The patch ensures that each field gets initialized with zeroes. Cc: <users@rt2x00.serialmonkey.com> Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-17tuntap: reset network header before calling skb_get_rxhash()Eric Dumazet
Commit 499744209b2c (tuntap: dont use skb after netif_rx_ni(skb)) introduced another bug. skb_get_rxhash() needs to access the network header, and it was set for us in netif_rx_ni(). We need to reset network header or else skb_flow_dissect() behavior is out of control. Reported-and-tested-by: Kirill A. Shutemov <kirill@shutemov.name> Tested-by: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-16ipv6: Fix Makefile offload objectsSimon Arlott
The following commit breaks IPv6 TCP transmission for me: Commit 75fe83c32248d99e6d5fe64155e519b78bb90481 Author: Vlad Yasevich <vyasevic@redhat.com> Date: Fri Nov 16 09:41:21 2012 +0000 ipv6: Preserve ipv6 functionality needed by NET This patch fixes the typo "ipv6_offload" which should be "ipv6-offload". I don't know why not including the offload modules should break TCP. Disabling all offload options on the NIC didn't help. Outgoing pulseaudio traffic kept stalling. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-16sctp: jsctp_sf_eat_sack: fix jprobes function signature mismatchDaniel Borkmann
Commit 24cb81a6a (sctp: Push struct net down into all of the state machine functions) introduced the net structure into all state machine functions, but jsctp_sf_eat_sack was not updated, hence when SCTP association probing is enabled in the kernel, any simple SCTP client/server program from userspace will panic the kernel. Cc: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-16bridge: add flags to distinguish permanent mdb entiresAmerigo Wang
This patch adds a flag to each mdb entry, so that we can distinguish permanent entries with temporary entries. Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-16bridge: update selinux perm table for RTM_NEWMDB and RTM_DELMDBAmerigo Wang
Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-16sctp: Change defaults on cookie hmac selectionNeil Horman
Recently I posted commit 3c68198e75 which made selection of the cookie hmac algorithm selectable. This is all well and good, but Linus noted that it changes the default config: http://marc.info/?l=linux-netdev&m=135536629004808&w=2 I've modified the sctp Kconfig file to reflect the recommended way of making this choice, using the thermal driver example specified, and brought the defaults back into line with the way they were prior to my origional patch Also, on Linus' suggestion, re-adding ability to select default 'none' hmac algorithm, so we don't needlessly bloat the kernel by forcing a non-none default. This also led me to note that we won't honor the default none condition properly because of how sctp_net_init is encoded. Fix that up as well. Tested by myself (allbeit fairly quickly). All configuration combinations seems to work soundly. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: David Miller <davem@davemloft.net> CC: Linus Torvalds <torvalds@linux-foundation.org> CC: Vlad Yasevich <vyasevich@gmail.com> CC: linux-sctp@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-16i2400m: add Intel 6150 device IDsDan Williams
Add device IDs for WiMAX function of Intel 6150 cards. Signed-off-by: Dan Williams <dcbw@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-16can: sja1000: fix compilation on x86Marc Kleine-Budde
Since commit: 04df251 can: sja1000: Make sja1000_of_platform selectable and compilable on SPARC the driver can be activated on non powerpc platform like x86 or sparc. Without this patch the driver fails to compile on platform that don't define NO_IRQ, like x86. Reported-by: Randy Dunlap <rdunlap@infradead.org> Cc: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-14cpts: Fix build error caused by include of plat/clock.hTony Lindgren
Commit 87c0e764 (cpts: introduce time stamping code and a PTP hardware clock) mistakenly included plat/clock.h that should not be included by drivers even if it exists. Otherwise we get the following error with at least omap2plus_defconfig: drivers/net/ethernet/ti/cpts.c:30:24: error: plat/clock.h: No such file or directory Signed-off-by: Tony Lindgren <tony@atomide.com Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-14inet: Fix kmemleak in tcp_v4/6_syn_recv_sock and dccp_v4/6_request_recv_sockChristoph Paasch
If in either of the above functions inet_csk_route_child_sock() or __inet_inherit_port() fails, the newsk will not be freed: unreferenced object 0xffff88022e8a92c0 (size 1592): comm "softirq", pid 0, jiffies 4294946244 (age 726.160s) hex dump (first 32 bytes): 0a 01 01 01 0a 01 01 02 00 00 00 00 a7 cc 16 00 ................ 02 00 03 01 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8153d190>] kmemleak_alloc+0x21/0x3e [<ffffffff810ab3e7>] kmem_cache_alloc+0xb5/0xc5 [<ffffffff8149b65b>] sk_prot_alloc.isra.53+0x2b/0xcd [<ffffffff8149b784>] sk_clone_lock+0x16/0x21e [<ffffffff814d711a>] inet_csk_clone_lock+0x10/0x7b [<ffffffff814ebbc3>] tcp_create_openreq_child+0x21/0x481 [<ffffffff814e8fa5>] tcp_v4_syn_recv_sock+0x3a/0x23b [<ffffffff814ec5ba>] tcp_check_req+0x29f/0x416 [<ffffffff814e8e10>] tcp_v4_do_rcv+0x161/0x2bc [<ffffffff814eb917>] tcp_v4_rcv+0x6c9/0x701 [<ffffffff814cea9f>] ip_local_deliver_finish+0x70/0xc4 [<ffffffff814cec20>] ip_local_deliver+0x4e/0x7f [<ffffffff814ce9f8>] ip_rcv_finish+0x1fc/0x233 [<ffffffff814cee68>] ip_rcv+0x217/0x267 [<ffffffff814a7bbe>] __netif_receive_skb+0x49e/0x553 [<ffffffff814a7cc3>] netif_receive_skb+0x50/0x82 This happens, because sk_clone_lock initializes sk_refcnt to 2, and thus a single sock_put() is not enough to free the memory. Additionally, things like xfrm, memcg, cookie_values,... may have been initialized. We have to free them properly. This is fixed by forcing a call to tcp_done(), ending up in inet_csk_destroy_sock, doing the final sock_put(). tcp_done() is necessary, because it ends up doing all the cleanup on xfrm, memcg, cookie_values, xfrm,... Before calling tcp_done, we have to set the socket to SOCK_DEAD, to force it entering inet_csk_destroy_sock. To avoid the warning in inet_csk_destroy_sock, inet_num has to be set to 0. As inet_csk_destroy_sock does a dec on orphan_count, we first have to increase it. Calling tcp_done() allows us to remove the calls to tcp_clear_xmit_timer() and tcp_cleanup_congestion_control(). A similar approach is taken for dccp by calling dccp_done(). This is in the kernel since 093d282321 (tproxy: fix hash locking issue when using port redirection in __inet_inherit_port()), thus since version >= 2.6.37. Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-14ipv6: Change skb->data before using icmpv6_notify() to propagate redirectDuan Jiong
In function ndisc_redirect_rcv(), the skb->data points to the transport header, but function icmpv6_notify() need the skb->data points to the inner IP packet. So before using icmpv6_notify() to propagate redirect, change skb->data to point the inner IP packet that triggered the sending of the Redirect, and introduce struct rd_msg to make it easy. Signed-off-by: Duan Jiong <djduanjiong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-14mac802154: fix destructon ordering for ieee802154 devicesKonstantin Khlebnikov
mutex_destroy() must be called before wpan_phy_free(), because it puts the last reference and frees memory. Catched as overwritten poison in kmalloc-2048. Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: linux-zigbee-devel@lists.sourceforge.net Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-14bonding: do not cancel works in bond_uninit()Konstantin Khlebnikov
Bonding initializes these works in bond_open() and cancels in bond_close(), thus in bond_uninit() they are already canceled but may be unitialized yet. Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Nikolay Aleksandrov <nikolay@redhat.com> Cc: Jay Vosburgh <fubar@us.ibm.com> Cc: Andy Gospodarek <andy@greyhouse.net> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-14stmmac: fix platform driver unregisteringKonstantin Khlebnikov
This patch fixes platform device drivers unregistering and adds proper error handing on module loading. Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-14mISDN: fix race in timer canceling on module unloadingKonstantin Khlebnikov
Using timer_pending() without additional syncronization is racy, del_timer_sync() must be used here for waiting in-flight handler. Bug caught with help from "debug-objects" during random insmod/rmmod. Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: David S. Miller <davem@davemloft.net> Cc: netdev <netdev@vger.kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-14tuntap: fix ambigious multiqueue APIJason Wang
The current multiqueue API is ambigious which may confuse both user and LSM to do things correctly: - Both TUNSETIFF and TUNSETQUEUE could be used to create the queues of a tuntap device. - TUNSETQUEUE were used to disable and enable a specific queue of the device. But since the state of tuntap were completely removed from the queue, it could be used to attach to another device (there's no such kind of requirement currently, and it needs new kind of LSM policy. - TUNSETQUEUE could be used to attach to a persistent device without any queues. This kind of attching bypass the necessary checking during TUNSETIFF and may lead unexpected result. So this patch tries to make a cleaner and simpler API by: - Only allow TUNSETIFF to create queues. - TUNSETQUEUE could be only used to disable and enabled the queues of a device, and the state of the tuntap device were not detachd from the queues when it was disabled, so TUNSETQUEUE could be only used after TUNSETIFF and with the same device. This is done by introducing a list which keeps track of all queues which were disabled. The queue would be moved between this list and tfiles[] array when it was enabled/disabled. A pointer of the tun_struct were also introdued to track the device it belongs to when it was disabled. After the change, the isolation between management and application could be done through: TUNSETIFF were only called by management software and TUNSETQUEUE were only called by application.For LSM/SELinux, the things left is to do proper check during tun_set_queue() if needed. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-14bridge: remove temporary variable for MLDv2 maximum response code computationAng Way Chuang
As suggested by Stephen Hemminger, this remove the temporary variable introduced in commit eca2a43bb0d2c6ebd528be6acb30a88435abe307 ("bridge: fix icmpv6 endian bug and other sparse warnings") Signed-off-by: Ang Way Chuang <wcang@sfc.wide.ad.jp> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-14Revert "sched: Update_cfs_shares at period edge"Linus Torvalds
This reverts commit f269ae0469fc882332bdfb5db15d3c1315fe2a10. It turns out it causes a very noticeable interactivity regression with CONFIG_SCHED_AUTOGROUP (test-case: "make -j32" of the kernel in a terminal window, while scrolling in a browser - the autogrouping means that the two end up in separate cgroups, and the browser should be smooth as silk despite the high load). Says Paul Turner: "It seems that the update-throttling on the wake-side is reducing the interactive tasks' ability to preempt. While I suspect the right longer term answer here is force these updates only in the cross-cgroup case; this is less trivial. For this release I believe the right answer is either going to be a revert or restore the updates on the enqueue-side." Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Bisected-by: Mike Galbraith <efault@gmx.de> Acked-by: Paul Turner <pjt@google.com> Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-14Merge tag 'for-v3.8-merged' of git://git.infradead.org/battery-2.6Linus Torvalds
Pull battery subsystem updates from Anton Vorontsov: "Highlights: - Two new drivers from Pali Rohár and N900 hackers: rx51_battery and bq2415x_charger. The drivers are a part of a solution to replace the proprietary Nokia BME stack - Power supply core now registers devices with a thermal cooling subsystem, so we can now automatically throttle charging. Thanks to Ramakrishna Pallala! - Device tree support for ab8500 and max8925_power drivers - Random fixups and enhancements for a bunch of drivers." * tag 'for-v3.8-merged' of git://git.infradead.org/battery-2.6: (22 commits) max8925_power: Add support for device-tree initialization ab8500: Add devicetree support for chargalg ab8500: Add devicetree support for charger ab8500: Add devicetree support for btemp ab8500: Add devicetree support for fuelgauge twl4030_charger: Change TWL4030_MODULE_* ids to TWL_MODULE_* jz4740-battery: Use devm_request_and_ioremap jz4740-battery: Use devm_kzalloc bq27x00_battery: Fixup nominal available capacity reporting bq2415x_charger: Fix style issues bq2415x_charger: Add Kconfig/Makefile entries power_supply: Add bq2415x charger driver power_supply: Add new Nokia RX-51 (N900) power supply battery driver max17042_battery: Fix missing verify_model_lock() return value check ds2782_battery: Fix signedness bug in ds278x_read_reg16() lp8788-charger: Fix ADC channel names lp8788-charger: Fix wrong ADC conversion lp8788-charger: Use consumer device name on setting IIO channels power_supply: Register power supply for thermal cooling device power_supply: Add support for CHARGE_CONTROL_* attributes ...
2012-12-14Merge branch 'v4l_for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - Missing MAINTAINERS entries were added for several drivers - Adds V4L2 support for DMABUF handling, allowing zero-copy buffer sharing between V4L2 devices and GPU - Got rid of all warnings when compiling with W=1 on x86 - Add a new driver for Exynos hardware (s3c-camif) - Several bug fixes, cleanups and driver improvements * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (243 commits) [media] omap3isp: Replace cpu_is_omap3630() with ISP revision check [media] omap3isp: Prepare/unprepare clocks before/after enable/disable [media] omap3isp: preview: Add support for 8-bit formats at the sink pad [media] omap3isp: Replace printk with dev_* [media] omap3isp: Find source pad from external entity [media] omap3isp: Configure CSI-2 phy based on platform data [media] omap3isp: Add PHY routing configuration [media] omap3isp: Add CSI configuration registers from control block to ISP resources [media] omap3isp: Remove unneeded module memory address definitions [media] omap3isp: Use monotonic timestamps for statistics buffers [media] uvcvideo: Fix control value clamping for unsigned integer controls [media] uvcvideo: Mark first output terminal as default video node [media] uvcvideo: Add VIDIOC_[GS]_PRIORITY support [media] uvcvideo: Return -ENOTTY for unsupported ioctls [media] uvcvideo: Set device_caps in VIDIOC_QUERYCAP [media] uvcvideo: Don't fail when an unsupported format is requested [media] uvcvideo: Return -EACCES when trying to access a read/write-only control [media] uvcvideo: Set error_idx properly for extended controls API failures [media] rtl28xxu: add NOXON DAB/DAB+ USB dongle rev 2 [media] fc2580: write some registers conditionally ...
2012-12-14Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull first round of SCSI updates from James Bottomley: "This patch set includes two large new drivers: mpt3sas (for the next gen fusion SAS hardware) and csiostor a FCoE offload driver for the Chelsio converged network cards (this includes some net changes which I've OK'd with DaveM). The rest of the patch is driver updates (qla2xxx, lpfc, hptiop, be2iscsi) plus a few assorted updates and bug fixes. We also have a Power Management rework in the Upper Layer Drivers preparatory to doing ACPI zero power optical devices, but the actual enabler is still being worked on. Signed-off-by: James Bottomley <JBottomley@Parallels.com>" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (72 commits) [SCSI] mpt3sas: add new driver supporting 12GB SAS [SCSI] scsi_transport_sas: add 12GB definitions for mpt3sas [SCSI] miscdevice: Adding support for MPT3SAS_MINOR(222) [SCSI] csiostor: remove unneeded memset() [SCSI] csiostor: Fix sparse warnings. [SCSI] qla2xxx: Display that driver is operating in legacy interrupt mode. [SCSI] qla2xxx: Dont clear drv active on iospace config failure. [SCSI] qla2xxx: Fix typo in qla2xxx driver. [SCSI] qla2xxx: Update ql2xextended_error_logging parameter description with new option. [SCSI] qla2xxx: Parameterize the link speed of hba rather than fcport. [SCSI] qla2xxx: Add 16Gb/s case to get port speed capability. [SCSI] qla2xxx: Move marking fcport online ahead of setting iiDMA speed. [SCSI] qla2xxx: Add acquiring of risc semaphore before doing ISP reset. [SCSI] qla2xxx: Ignore driver ack bit if corresponding presence bit is not set. [SCSI] qla2xxx: Fix typo in qla83xx_fw_dump function. [SCSI] qla2xxx: Add Gen3 PCIe speed 8GT/s to the log message. [SCSI] qla2xxx: Use correct Request-Q-Out register during bidirectional request processing [SCSI] qla2xxx: Move noisy Start scsi failed messages to verbose logging level. [SCSI] qla2xxx: Fix coccinelle warnings in qla2x00_relogin. [SCSI] qla2xxx: No fcport FC-4 type assignment in GA_NXT response. ...
2012-12-14Merge tag 'rdma-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband Pull infiniband upate from Roland Dreier: "First batch of InfiniBand/RDMA changes for the 3.8 merge window: - A good chunk of Bart Van Assche's SRP fixes - UAPI disintegration from David Howells - mlx4 support for "64-byte CQE" hardware feature from Or Gerlitz - Other miscellaneous fixes" Fix up trivial conflict in mellanox/mlx4 driver. * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (33 commits) RDMA/nes: Fix for crash when registering zero length MR for CQ RDMA/nes: Fix for terminate timer crash RDMA/nes: Fix for BUG_ON due to adding already-pending timer IB/srp: Allow SRP disconnect through sysfs srp_transport: Document sysfs attributes srp_transport: Simplify attribute initialization code srp_transport: Fix attribute registration IB/srp: Document sysfs attributes IB/srp: send disconnect request without waiting for CM timewait exit IB/srp: destroy and recreate QP and CQs when reconnecting IB/srp: Eliminate state SRP_TARGET_DEAD IB/srp: Introduce the helper function srp_remove_target() IB/srp: Suppress superfluous error messages IB/srp: Process all error completions IB/srp: Introduce srp_handle_qp_err() IB/srp: Simplify SCSI error handling IB/srp: Keep processing commands during host removal IB/srp: Eliminate state SRP_TARGET_CONNECTING IB/srp: Increase block layer timeout RDMA/cm: Change return value from find_gid_port() ...
2012-12-14Merge tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
Pull SPI updates from Grant Likely: "Primarily SPI device driver bug fixes, one removal of an old driver, and some new tegra support. There is some core code change too, but all in all pretty small stuff. The new features to note are: - Common code for describing GPIO CS lines in the device tree - Remove the SPI_BUFSIZ limitation on spi_write_the_read() - core spi ensures bits_per_word is set correctly - SPARC can now use SPI" * tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6: (36 commits) spi/sparc: Allow of_register_spi_devices for sparc spi: Remove HOTPLUG section attributes spi: Add support for specifying 3-wire mode via device tree spi: Fix comparison of different integer types spi/orion: Add SPI_CHPA and SPI_CPOL support to kirkwood driver. spi/sh: Add SH Mobile series as dependency to MSIOF controller spi/sh-msiof: Remove unneeded clock name spi: Remove SPI_BUFSIZ restriction on spi_write_then_read() spi/stmp: remove obsolete driver spi/clps711x: New SPI master driver spi: omap2-mcspi: remove duplicate inclusion of linux/err.h spi: omap2-mcspi: Fix the redifine warning spi/sh-hspi: add CS manual control support of_spi: add generic binding support to specify cs gpio spi: omap2-mcspi: remove duplicated include from spi-omap2-mcspi.c spi/bitbang: (cosmetic) simplify list manipulation spi/bitbang: avoid needless loop flow manipulations spi/omap: fix D0/D1 direction confusion spi: tegra: add spi driver for sflash controller spi: Dont call master->setup if not populated ...
2012-12-14Merge branch 'autofs' (patches from Ian Kent)Linus Torvalds
Merge emailed autofs cleanup/fix patches from Ian Kent * autofs: autofs4 - use simple_empty() for empty directory check autofs4 - dont clear DCACHE_NEED_AUTOMOUNT on rootless mount
2012-12-14autofs4 - use simple_empty() for empty directory checkIan Kent
For direct (and offset) mounts, if an automounted mount is manually umounted the trigger mount dentry can appear non-empty causing it to not trigger mounts. This can also happen if there is a file handle leak in a user space automounting application. This happens because, when a ioctl control file handle is opened on the mount, a cursor dentry is created which causes list_empty() to see the dentry as non-empty. Since there is a case where listing the directory of these dentrys is needed, the use of dcache_dir_*() functions for .open() and .release() is needed. Consequently simple_empty() must be used instead of list_empty() when checking for an empty directory. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-14autofs4 - dont clear DCACHE_NEED_AUTOMOUNT on rootless mountIan Kent
The DCACHE_NEED_AUTOMOUNT flag is cleared on mount and set on expire for autofs rootless multi-mount dentrys to prevent unnecessary calls to ->d_automount(). Since DCACHE_MANAGE_TRANSIT is always set on autofs dentrys ->d_managed() is always called so the check can be done in ->d_manage() without the need to change the flag. This still avoids unnecessary calls to ->d_automount(), adds negligible overhead and eliminates a seriously ugly check in the expire code. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-14Merge tag 'ktest-v3.8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest Pull ktest update from Steven Rostedt: "fixes and updated for new boot loaders" * tag 'ktest-v3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest: ktest: Test if target machine is up before install ktest: Fix breakage from change of oldnoconfig to olddefconfig ktest: Add native support for syslinux boot loader ktest: Sync before reboot ktest: Add support for grub2
2012-12-13Merge tag 'kvm-3.8-1' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM updates from Marcelo Tosatti: "Considerable KVM/PPC work, x86 kvmclock vsyscall support, IA32_TSC_ADJUST MSR emulation, amongst others." Fix up trivial conflict in kernel/sched/core.c due to cross-cpu migration notifier added next to rq migration call-back. * tag 'kvm-3.8-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (156 commits) KVM: emulator: fix real mode segment checks in address linearization VMX: remove unneeded enable_unrestricted_guest check KVM: VMX: fix DPL during entry to protected mode x86/kexec: crash_vmclear_local_vmcss needs __rcu kvm: Fix irqfd resampler list walk KVM: VMX: provide the vmclear function and a bitmap to support VMCLEAR in kdump x86/kexec: VMCLEAR VMCSs loaded on all cpus if necessary KVM: MMU: optimize for set_spte KVM: PPC: booke: Get/set guest EPCR register using ONE_REG interface KVM: PPC: bookehv: Add EPCR support in mtspr/mfspr emulation KVM: PPC: bookehv: Add guest computation mode for irq delivery KVM: PPC: Make EPCR a valid field for booke64 and bookehv KVM: PPC: booke: Extend MAS2 EPN mask for 64-bit KVM: PPC: e500: Mask MAS2 EPN high 32-bits in 32/64 tlbwe emulation KVM: PPC: Mask ea's high 32-bits in 32/64 instr emulation KVM: PPC: e500: Add emulation helper for getting instruction ea KVM: PPC: bookehv64: Add support for interrupt handling KVM: PPC: bookehv: Remove GET_VCPU macro from exception handler KVM: PPC: booke: Fix get_tb() compile error on 64-bit KVM: PPC: e500: Silence bogus GCC warning in tlb code ...
2012-12-13Merge tag 'stable/for-linus-3.8-rc0-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Pull Xen updates from Konrad Rzeszutek Wilk: - Add necessary infrastructure to make balloon driver work under ARM. - Add /dev/xen/privcmd interfaces to work with ARM and PVH. - Improve Xen PCIBack wild-card parsing. - Add Xen ACPI PAD (Processor Aggregator) support - so can offline/ online sockets depending on the power consumption. - PVHVM + kexec = use an E820_RESV region for the shared region so we don't overwrite said region during kexec reboot. - Cleanups, compile fixes. Fix up some trivial conflicts due to the balloon driver now working on ARM, and there were changes next to the previous work-arounds that are now gone. * tag 'stable/for-linus-3.8-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/PVonHVM: fix compile warning in init_hvm_pv_info xen: arm: implement remap interfaces needed for privcmd mappings. xen: correctly use xen_pfn_t in remap_domain_mfn_range. xen: arm: enable balloon driver xen: balloon: allow PVMMU interfaces to be compiled out xen: privcmd: support autotranslated physmap guests. xen: add pages parameter to xen_remap_domain_mfn_range xen/acpi: Move the xen_running_on_version_or_later function. xen/xenbus: Remove duplicate inclusion of asm/xen/hypervisor.h xen/acpi: Fix compile error by missing decleration for xen_domain. xen/acpi: revert pad config check in xen_check_mwait xen/acpi: ACPI PAD driver xen-pciback: reject out of range inputs xen-pciback: simplify and tighten parsing of device IDs xen PVonHVM: use E820_Reserved area for shared_info