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2013-02-21Merge tag 'char-misc-3.9-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver patches from Greg Kroah-Hartman: "Here's the big char/misc driver patches for 3.9-rc1. Nothing major here, just lots of different driver updates (mei, hyperv, ipack, extcon, vmci, etc.). All of these have been in the linux-next tree for a while." * tag 'char-misc-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (209 commits) w1: w1_therm: Add force-pullup option for "broken" sensors w1: ds2482: Added 1-Wire pull-up support to the driver vme: add missing put_device() after device_register() fails extcon: max8997: Use workqueue to check cable state after completing boot of platform extcon: max8997: Set default UART/USB path on probe extcon: max8997: Consolidate duplicate code for checking ADC/CHG cable type extcon: max8997: Set default of ADC debounce time during initialization extcon: max8997: Remove duplicate code related to set H/W line path extcon: max8997: Move defined constant to header file extcon: max77693: Make max77693_extcon_cable static extcon: max8997: Remove unreachable code extcon: max8997: Make max8997_extcon_cable static extcon: max77693: Remove unnecessary goto statement to improve readability extcon: max77693: Convert to devm_input_allocate_device() extcon: gpio: Rename filename of extcon-gpio.c according to kernel naming style CREDITS: update email and address of Harald Hoyer extcon: arizona: Use MICDET for final microphone identification extcon: arizona: Always take the first HPDET reading as the final one extcon: arizona: Clear _trig_sts bits after jack detection extcon: arizona: Don't HPDET magic when headphones are enabled ...
2013-01-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Bring in the 'net' tree so that we can get some ipv4/ipv6 bug fixes that some net-next work will build upon. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-25Drivers: net: hyperv: Use the consolidated GUID definitionK. Y. Srinivasan
Use the consolidated GUID definitions in the Hyper-V network driver. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-19net/hyperv: fix wrong length of mac addressJianjun Kong
This patch fixed wrong mac length, it should be ETH_ALEN, also replaced the hardcode 6 in hyperv_net.h Signed-off-by: Amos Kong <kongjianjun@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-07ethtool: fix drvinfo strings set in driversJiri Pirko
Use strlcpy where possible to ensure the string is \0 terminated. Use always sizeof(string) instead of 32, ETHTOOL_BUSINFO_LEN and custom defines. Use snprintf instead of sprint. Remove unnecessary inits of ->fw_version Remove unnecessary inits of drvinfo struct. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-30hyperv: Add an error message to rndis_filter_set_device_mac()Haiyang Zhang
This message indicates an error returned from the host when changing MAC address. Reported-by: Michal Kubecek <mkubecek@suse.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-22hyperv: Remove unnecessary comments in rndis_filter_receive_data()Haiyang Zhang
Checked with Windows networking team, there is only one RNDIS message in each netvsc packet. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-02hyperv: Add buffer for extended info after the RNDIS response message.Haiyang Zhang
In some response messages, there may be some extended info after the message. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-02hyperv: Report actual status in receive completion packetHaiyang Zhang
The existing code always reports NVSP_STAT_SUCCESS. This patch adds the mechanism to report failure when it happens. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-02hyperv: Remove extra allocated space for recv_pkt_list elementsHaiyang Zhang
The receive code path doesn't use the page buffer, so remove the extra allocated space here. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-02hyperv: Fix page buffer handling in rndis_filter_send_request()Haiyang Zhang
To prevent possible data corruption in RNDIS requests, add another page buffer if the request message crossed page boundary. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-02hyperv: Fix the missing return value in rndis_filter_set_packet_filter()Haiyang Zhang
Return ETIMEDOUT when the reply message is not received in time. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-02hyperv: Fix the max_xfer_size in RNDIS initializationHaiyang Zhang
According to RNDIS specs, Windows sets this size to 0x4000. I use the same value here. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14net: move and rename netif_notify_peers()Amerigo Wang
I believe net/core/dev.c is a better place for netif_notify_peers(), because other net event notify functions also stay in this file. And rename it to netdev_notify_peers(). Cc: David S. Miller <davem@davemloft.net> Cc: Ian Campbell <Ian.Campbell@citrix.com> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-09hyperv: Add comments for the extended buffer after RNDIS messageHaiyang Zhang
Reported-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-03hyperv: Move wait completion msg code into rndis_filter_halt_device()Haiyang Zhang
We need to wait for send_completion msg before put_rndis_request() at the end of rndis_filter_halt_device(). Otherwise, netvsc_send_completion() may reference freed memory which is overwritten, and cause panic. Reported-by: Long Li <longli@microsoft.com> Reported-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-25hyperv: Add error handling to rndis_filter_device_add()Haiyang Zhang
Reported-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-25hyperv: Add a check for ring_size valueHaiyang Zhang
It prevents ring_size being set to a too small value. Reported-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-17hyperv: Add support for setting MAC from within guestsHaiyang Zhang
This adds support for setting synthetic NIC MAC address from within Linux guests. Before using this feature, the option "spoofing of MAC address" should be enabled at the Hyper-V manager / Settings of the synthetic NIC. Thanks to Kin Cho <kcho@infoblox.com> for the initial implementation and tests. And, thanks to Long Li <longli@microsoft.com> for the debugging works. Reported-and-tested-by: Kin Cho <kcho@infoblox.com> Reported-by: Long Li <longli@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2012-06-06drivers: net: Remove casts to same typeJoe Perches
Adding casts of objects to the same type is unnecessary and confusing for a human reader. For example, this cast: int y; int *p = (int *)&y; I used the coccinelle script below to find and remove these unnecessary casts. I manually removed the conversions this script produces of casts with __force, __iomem and __user. @@ type T; T *p; @@ - (T *)p + p Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-04net/hyperv: Use wait_event on outstanding sends during device removalHaiyang Zhang
Change the busy-waiting/udelay to wait_event on outstanding sends. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12usb/net: rndis: merge command codesLinus Walleij
Switch the hyperv filter and rndis gadget driver to use the same command enumerators as the other drivers and delete the surplus command codes. Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12usb/net: rndis: remove ambigous status codesLinus Walleij
The RNDIS status codes are redefined with much stranged ifdeffery and only one of these codes was used in the hyperv driver, and there it is very clearly referring to the RNDIS variant, not some other status. So clarify this by explictly using the RNDIS_* prefixed status code in the hyperv drivera and delete the duplicate defines. Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12usb/net: rndis: break out <linux/rndis.h> definesLinus Walleij
As a first step to consolidate the RNDIS implementations, break out a common file with all the #defines and move it to <linux/rndis.h>. This also deletes the immediate duplicated defines in the <linux/rndis.h> file that yields a lot of compilation warnings. Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Fix merge between commit 3adadc08cc1e ("net ax25: Reorder ax25_exit to remove races") and commit 0ca7a4c87d27 ("net ax25: Simplify and cleanup the ax25 sysctl handling") The former moved around the sysctl register/unregister calls, the later simply removed them. With help from Stephen Rothwell. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-21net/hyperv: Adding cancellation to ensure rndis filter is closedWenqi Ma
Although the network interface is down, the RX packets number which could be observed by ifconfig may keep on increasing. This is because the WORK scheduled in netvsc_set_multicast_list() may be executed after netvsc_close(). That means the rndis filter may be re-enabled by do_set_multicast() even if it was closed by netvsc_close(). By canceling possible WORK before close the rndis filter, the issue could be never happened. Signed-off-by: Wenqi Ma <wenqi_ma@trendmicro.com.cn> Reviewed-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-03net/hyperv: Add flow control based on hi/low watermarkHaiyang Zhang
In the existing code, we only stop queue when the ringbuffer is full, so the current packet has to be dropped or retried from upper layer. This patch stops the tx queue when available ringbuffer is below the low watermark. So the ringbuffer still has small amount of space available for the current packet. This will reduce the overhead of retries on sending. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-19net/hyperv: Fix the code handling tx busyHaiyang Zhang
Instead of dropping the packet, we keep the skb buffer, and return NETDEV_TX_BUSY to let upper layer retry send. This will not cause endless loop, because the host is taking data away from ring buffer, and we have called the stop_queue before returning NETDEV_TX_BUSY. The stop_queue was called in the function netvsc_send() in file netvsc.c, then it returns to rndis_filter_send(), which returns to netvsc_start_xmit() in file netvsc_drv.c. So the NETDEV_TX_BUSY is indeed returned AFTER queue is stopped. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2012-03-16net/hyperv: fix erroneous NETDEV_TX_BUSY useEric Dumazet
A driver start_xmit() method cannot free skb and return NETDEV_TX_BUSY, since caller is going to reuse freed skb. This is mostly a revert of commit bf769375c (staging: hv: fix the return status of netvsc_start_xmit()) In fact netif_tx_stop_queue() / netif_stop_queue() is needed before returning NETDEV_TX_BUSY or you can trigger a ksoftirqd fatal loop. In case of memory allocation error, only safe way is to drop the packet and return NETDEV_TX_OK Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-13net/hyperv: Add support for vlan trunking from guestsHaiyang Zhang
With this feature, a Linux guest can now configure multiple vlans through a single synthetic NIC on Win8 Hyper-V host. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-13net/hyperv: Fix data corruption in rndis_filter_receive()Haiyang Zhang
Limiting the memcpy to be the sizeof(struct rndis_message) can truncate the message if there are Per-Packet-Info or Out-of-Band data. In my earlier patch (commit 45326342), the unnecessary kmap_atomic and kunmap_atomic surrounding this memcpy have been removed because the memory in the receive buffer is always mapped. This memcpy is not necessary either. To fix the bug, I removed the memcpy. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2012-03-08net/hyperv: Use the built-in macro KBUILD_MODNAME for this driverHaiyang Zhang
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Cc: Olaf Hering <olaf@aepfle.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-05net/hyperv: Remove the unnecessary memset in rndis_filter_send()Haiyang Zhang
The memory has been allocated by kzalloc, so it's unnecessary to memset again. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-05net/hyperv: Correct the assignment in netvsc_recv_callback()Haiyang Zhang
The first assignment to variable "net" is wrong, but overridden by the latter assignments. So the bug isn't manifested. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-05net/hyperv: Convert camel cased variables in rndis_filter.c to lower casesHaiyang Zhang
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-02net/hyperv: Fix the page buffer when an RNDIS message goes beyond page boundaryHaiyang Zhang
There is a possible data corruption if an RNDIS message goes beyond page boundary in the sending code path. This patch fixes the problem. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-02net/hyperv: Use netif_tx_disable() instead of netif_stop_queue() when necessaryHaiyang Zhang
For code path not on the xmit, use netif_tx_disable() instead of netif_stop_queue() to ensure other CPUs are not doing xmit. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-02net/hyperv: fix the issue that large packets be dropped under bridgeWei Yongjun
The packets with size larger than 1452 will be dropped by bridge which with two hyperv netdevice ports. This cause by hyperv netvsc driver always copy the trailer padding to the data packet, and then the skb received from netdevice may include wrong skb->len (20 bytes larger than the real size normally). The captured packet may like this: Ethernet II, Src: Microsof_00:00:07 (00:15:5d:00:00:07), Dst: HewlettP_00:00:4e (00:1f:29:00:00:4e) Destination: HewlettP_e6:00:4e (00:1f:29:00:00:4e) Source: Microsof_f6:6d:07 (00:15:5d:f6:6d:07) Type: IP (0x0800) Trailer: 1415161718191A1B1C1D1E1F20212223 Frame check sequence: 0x24252627 [incorrect, should be 0x7c2e5a5e] The following command help to reproduction it, and the ping ICMP packets will be dropped by bridge. $ ping ip -s 1453 This patch fixed it by removing the trailer padding from the data packet. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-01net/hyperv: rx_bytes should account the ether header sizeWei Yongjun
skb->len after call eth_type_trans() does not include the ether header size, but rx_bytes should account it. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-24net/hyperv: fix possible memory leak in do_set_multicast()Wei Yongjun
do_set_multicast() may not free the memory malloc in netvsc_set_multicast_list(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-05net/hyperv: Add support for jumbo frame up to 64KBHaiyang Zhang
Allow the user set the MTU up to 65536 for Linux guests running on Hyper-V 2008 R2 or later. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-05net/hyperv: Add NETVSP protocol version negotiationHaiyang Zhang
Automatically negotiate the highest protocol version mutually recognized by both host and guest. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-05net/hyperv: Remove unnecessary kmap_atomic in netvsc driverHaiyang Zhang
__get_free_pages() doesn't return HI memory, so the memory is always mapped. kmap_atomic() is not necessary here. This patch removes the kmap_atomic() calls and related code for locking and page manipulation. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-10net/hyperv: Fix the stop/wake queue mechanismHaiyang Zhang
The ring buffer is only used to pass meta data for outbound packets. The actual payload is accessed by DMA from the host. So the stop/wake queue mechanism based on counting and comparing number of pages sent v.s. number of pages in the ring buffer is wrong. Also, there is a race condition in the stop/wake queue calls, which can stop xmit queue forever. The new stop/wake queue mechanism is based on the actual bytes used by outbound packets in the ring buffer. The check for number of outstanding sends after stop queue prevents the race condition that can cause wake queue happening earlier than stop queue. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reported-by: Long Li <longli@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-01net/hyperv: Add support for promiscuous mode settingHaiyang Zhang
Add code to accept promiscuous mode setting, and pass it to RNDIS filter. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-01net/hyperv: Fix long lines in netvsc.cHaiyang Zhang
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-29staging: hv: move hv_netvsc out of staging areaHaiyang Zhang
hv_netvsc has been reviewed on netdev mailing list on 6/09/2011. All recommended changes have been made. We are requesting to move it out of staging area. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: KY Srinivasan <kys@microsoft.com> Signed-off-by: Mike Sterling <Mike.Sterling@microsoft.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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