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2013-08-02Drivers: hv: remove HV_DRV_VERSIONOlaf Hering1-2/+0
Remove HV_DRV_VERSION, it has no meaning for upstream drivers. Initially it was supposed to show the "Linux Integration Services" version, now it is not in sync anymore with the out-of-tree drivers available from the MSFT website. The only place where a version string is still required is the KVP command "IntegrationServicesVersion" which is handled by tools/hv/hv_kvp_daemon.c. To satisfy such KVP request from the host pass the current string to the daemon during KVP userland registration. Signed-off-by: Olaf Hering <[email protected]> Acked-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-07-16hyperv: Fix the NETIF_F_SG flag setting in netvscHaiyang Zhang1-2/+2
SG mode is not currently supported by netvsc, so remove this flag for now. Otherwise, it will be unconditionally enabled by commit ec5f0615642 "Kill link between CSUM and SG features" Previously, the SG feature is disabled because CSUM is not set here. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-06-17Fix the VLAN_TAG_PRESENT in netvsc_recv_callback()Haiyang Zhang1-1/+3
We should call __vlan_hwaccel_put_tag() only if the packet comes from vlan, otherwise VLAN_TAG_PRESENT will always be added. Reported-by: Olaf Hering <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-05-31hyperv: Fix vlan_proto setting in netvsc_recv_callback()Haiyang Zhang1-1/+2
Since the recent addition of 8021AD, we need to set the new field vlan_proto in sk_buff. Otherwise, it will trigger BUG() call in vlan_proto_idx(). This patch fixes the problem. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-04-29hyperv: Fix a compiler warning in netvsc_send()Haiyang Zhang1-1/+1
Fixed: warning: cast from pointer to integer of different size The Hyper-V hosts always use 64 bit request id. The guests can have 32 or 64 bit pointers which equal to the ulong type size. So we cast it to ulong type. And, assigning 32bit integer to 64 bit variable works fine. The VMBus returns the same id in the completion packet. But the value has no effect on the host side. Reported-by: kbuild test robot <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-04-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller3-20/+13
Conflicts: drivers/net/ethernet/emulex/benet/be_main.c drivers/net/ethernet/intel/igb/igb_main.c drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c include/net/scm.h net/batman-adv/routing.c net/ipv4/tcp_input.c The e{uid,gid} --> {uid,gid} credentials fix conflicted with the cleanup in net-next to now pass cred structs around. The be2net driver had a bug fix in 'net' that overlapped with the VLAN interface changes by Patrick McHardy in net-next. An IGB conflict existed because in 'net' the build_skb() support was reverted, and in 'net-next' there was a comment style fix within that code. Several batman-adv conflicts were resolved by making sure that all calls to batadv_is_my_mac() are changed to have a new bat_priv first argument. Eric Dumazet's TS ECR fix in TCP in 'net' conflicted with the F-RTO rewrite in 'net-next', mostly overlapping changes. Thanks to Stephen Rothwell and Antonio Quartulli for help with several of these merge resolutions. Signed-off-by: David S. Miller <[email protected]>
2013-04-19net: vlan: rename NETIF_F_HW_VLAN_* feature flags to NETIF_F_HW_VLAN_CTAG_*Patrick McHardy1-1/+1
Rename the hardware VLAN acceleration features to include "CTAG" to indicate that they only support CTAGs. Follow up patches will introduce 802.1ad server provider tagging (STAGs) and require the distinction for hardware not supporting acclerating both. Signed-off-by: Patrick McHardy <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-04-08hyperv: Fix RNDIS send_completion code pathHaiyang Zhang2-18/+13
In some cases, the VM_PKT_COMP message can arrive later than RNDIS completion message, which will free the packet memory. This may cause panic due to access to freed memory in netvsc_send_completion(). This patch fixes this problem by removing rndis_filter_send_request_completion() from the code path. The function was a no-op. Reported-by: Long Li <[email protected]> Tested-by: Long Li <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-04-08hyperv: Fix a kernel warning from netvsc_linkstatus_callback()Haiyang Zhang1-2/+0
The warning about local_bh_enable inside IRQ happens when disconnecting a virtual NIC. The reason for the warning is -- netif_tx_disable() is called when the NIC is disconnected. And it's called within irq context. netif_tx_disable() calls local_bh_enable() which displays warning if in irq. The fix is to remove the unnecessary netif_tx_disable & wake_queue() in the netvsc_linkstatus_callback(). Reported-by: Richard Genoud <[email protected]> Tested-by: Long Li <[email protected]> Tested-by: Richard Genoud <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-02-21Merge tag 'char-misc-3.9-rc1' of ↵Linus Torvalds1-2/+1
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. Miller2-2/+2
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 <[email protected]>
2013-01-25Drivers: net: hyperv: Use the consolidated GUID definitionK. Y. Srinivasan1-2/+1
Use the consolidated GUID definitions in the Hyper-V network driver. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-01-19net/hyperv: fix wrong length of mac addressJianjun Kong2-2/+2
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 <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-01-06ethtool: fix drvinfo strings set in driversJiri Pirko1-3/+3
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 <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-11-30hyperv: Add an error message to rndis_filter_set_device_mac()Haiyang Zhang1-1/+4
This message indicates an error returned from the host when changing MAC address. Reported-by: Michal Kubecek <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-10-21hyperv: Remove unnecessary comments in rndis_filter_receive_data()Haiyang Zhang1-5/+0
Checked with Windows networking team, there is only one RNDIS message in each netvsc packet. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-10-02hyperv: Add buffer for extended info after the RNDIS response message.Haiyang Zhang1-10/+12
In some response messages, there may be some extended info after the message. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-10-02hyperv: Report actual status in receive completion packetHaiyang Zhang4-11/+30
The existing code always reports NVSP_STAT_SUCCESS. This patch adds the mechanism to report failure when it happens. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-10-02hyperv: Remove extra allocated space for recv_pkt_list elementsHaiyang Zhang2-5/+1
The receive code path doesn't use the page buffer, so remove the extra allocated space here. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-10-02hyperv: Fix page buffer handling in rndis_filter_send_request()Haiyang Zhang1-1/+14
To prevent possible data corruption in RNDIS requests, add another page buffer if the request message crossed page boundary. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-10-02hyperv: Fix the missing return value in rndis_filter_set_packet_filter()Haiyang Zhang1-0/+1
Return ETIMEDOUT when the reply message is not received in time. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-10-02hyperv: Fix the max_xfer_size in RNDIS initializationHaiyang Zhang1-2/+1
According to RNDIS specs, Windows sets this size to 0x4000. I use the same value here. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-08-14net: move and rename netif_notify_peers()Amerigo Wang1-1/+1
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 <[email protected]> Cc: Ian Campbell <[email protected]> Signed-off-by: Cong Wang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-08-09hyperv: Add comments for the extended buffer after RNDIS messageHaiyang Zhang1-1/+7
Reported-by: Olaf Hering <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-08-03hyperv: Move wait completion msg code into rndis_filter_halt_device()Haiyang Zhang2-7/+11
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 <[email protected]> Reported-by: Jason Wang <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-07-25hyperv: Add error handling to rndis_filter_device_add()Haiyang Zhang1-7/+4
Reported-by: Jason Wang <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-07-25hyperv: Add a check for ring_size valueHaiyang Zhang1-1/+6
It prevents ring_size being set to a too small value. Reported-by: Jason Wang <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-07-16hyperv: Add support for setting MAC from within guestsHaiyang Zhang3-1/+109
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 <[email protected]> for the initial implementation and tests. And, thanks to Long Li <[email protected]> for the debugging works. Reported-and-tested-by: Kin Cho <[email protected]> Reported-by: Long Li <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-06-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2-6/+7
2012-06-06drivers: net: Remove casts to same typeJoe Perches1-1/+1
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 <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-06-04net/hyperv: Use wait_event on outstanding sends during device removalHaiyang Zhang2-6/+7
Change the busy-waiting/udelay to wait_event on outstanding sends. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-05-12usb/net: rndis: merge command codesLinus Walleij1-21/+21
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 <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-05-12usb/net: rndis: remove ambigous status codesLinus Walleij1-2/+2
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 <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-05-12usb/net: rndis: break out <linux/rndis.h> definesLinus Walleij1-289/+1
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 <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-04-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-24/+14
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 <[email protected]>
2012-04-21net/hyperv: Adding cancellation to ensure rndis filter is closedWenqi Ma1-24/+14
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 <[email protected]> Reviewed-by: Wei Yongjun <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-04-03net/hyperv: Add flow control based on hi/low watermarkHaiyang Zhang2-5/+42
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 <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-03-19net/hyperv: Fix the code handling tx busyHaiyang Zhang1-4/+1
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 <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Acked-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-03-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-2/+2
2012-03-16net/hyperv: fix erroneous NETDEV_TX_BUSY useEric Dumazet1-2/+2
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 <[email protected]> Cc: "K. Y. Srinivasan" <[email protected]> Cc: Haiyang Zhang <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-03-12net/hyperv: Add support for vlan trunking from guestsHaiyang Zhang4-4/+101
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 <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-03-12net/hyperv: Fix data corruption in rndis_filter_receive()Haiyang Zhang1-24/+9
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 <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-03-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-2/+2
2012-03-08net/hyperv: Use the built-in macro KBUILD_MODNAME for this driverHaiyang Zhang1-2/+2
Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Cc: Olaf Hering <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-02-05net/hyperv: Remove the unnecessary memset in rndis_filter_send()Haiyang Zhang1-2/+0
The memory has been allocated by kzalloc, so it's unnecessary to memset again. Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-02-05net/hyperv: Correct the assignment in netvsc_recv_callback()Haiyang Zhang1-5/+2
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 <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-02-05net/hyperv: Convert camel cased variables in rndis_filter.c to lower casesHaiyang Zhang1-30/+30
Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Jesper Juhl <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-02-02net/hyperv: Fix the page buffer when an RNDIS message goes beyond page boundaryHaiyang Zhang2-4/+17
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 <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-02-02net/hyperv: Use netif_tx_disable() instead of netif_stop_queue() when necessaryHaiyang Zhang1-4/+4
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 <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-02-02net/hyperv: fix the issue that large packets be dropped under bridgeWei Yongjun1-0/+19
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 <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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