- 02 Nov, 2013 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsecDavid S. Miller authored
Steffen Klassert says: ==================== 1) Fix a possible race on ipcomp scratch buffers because of too early enabled siftirqs. From Michal Kubecek. 2) The current xfrm garbage collector threshold is too small for some workloads, resulting in bad performance on these workloads. Increase the threshold from 1024 to 32768. 3) Some codepaths might not have a dst_entry attached to the skb when calling xfrm_decode_session(). So add a check to prevent a null pointer dereference in this case. ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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- 01 Nov, 2013 1 commit
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Steffen Klassert authored
On some codepaths the skb does not have a dst entry when xfrm_decode_session() is called. So check for a valid skb_dst() before dereferencing the device interface index. We use 0 as the device index if there is no valid skb_dst(), or at reverse decoding we use skb_iif as device interface index. Bug was introduced with git commit bafd4bd4 ("xfrm: Decode sessions with output interface."). Reported-by:
Meelis Roos <mroos@linux.ee> Tested-by:
Steffen Klassert <steffen.klassert@secunet.com>
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- 30 Oct, 2013 5 commits
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Masanari Iida authored
Correct spelling typo in Documentation/networking Signed-off-by:
Masanari Iida <standby24x7@gmail.com> Acked-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
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Nathan Hintz authored
Don't update the slot in "bgmac_dma_rx_skb_for_slot" unless both the skb alloc and dma mapping are successful; and free the newly allocated skb if a dma mapping error occurs. This relieves the caller of the need to deduce/execute the appropriate cleanup action required when an error occurs. Signed-off-by:
Nathan Hintz <nlhintz@hotmail.com> Acked-by:
Rafał Miłecki <zajec5@gmail.com> Signed-off-by:
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Alistair Popple authored
Calls to mal_enable_eob_irq perform a read-write-modify of a dcr to enable device irqs which is protected by a spin lock. However calls to mal_disable_eob_irq do not take the corresponding lock. This patch resolves the problem by ensuring that calls to mal_disable_eob_irq also take the lock. Signed-off-by:
Alistair Popple <alistair@popple.id.au> Signed-off-by:
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Alistair Popple authored
This patch fixes a bug which would trigger the BUG_ON() at net/core/dev.c:4156. It was found that this was due to continuing processing in the current poll call even when the call to napi_reschedule failed, indicating the device was already on the polling list. This resulted in an extra call to napi_complete which triggered the BUG_ON(). This patch ensures that we only contine processing rotting packets in the current mal_poll call if we are not already on the polling list. Signed-off-by:
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Jason Wang authored
commit 3ab098df (virtio-net: don't respond to cpu hotplug notifier if we're not ready) tries to bypass the cpu hotplug notifier by checking the config_enable and does nothing is it was false. So it need to try to hold the config_lock mutex which may happen in atomic environment which leads the following warnings: [ 622.944441] CPU0 attaching NULL sched-domain. [ 622.944446] CPU1 attaching NULL sched-domain. [ 622.944485] CPU0 attaching NULL sched-domain. [ 622.950795] BUG: sleeping function called from invalid context at kernel/mutex.c:616 [ 622.950796] in_atomic(): 1, irqs_disabled(): 1, pid: 10, name: migration/1 [ 622.950796] no locks held by migration/1/10. [ 622.950798] CPU: 1 PID: 10 Comm: migration/1 Not tainted 3.12.0-rc5-wl-01249-gb91e82d #317 [ 622.950799] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 622.950802] 0000000000000000 ffff88001d42dba0 ffffffff81a32f22 ffff88001bfb9c70 [ 622.950803] ffff88001d42dbb0 ffffffff810edb02 ffff88001d42dc38 ffffffff81a396ed [ 622.950805] 0000000000000046 ffff88001d42dbe8 ffffffff810e861d 0000000000000000 [ 622.950805] Call Trace: [ 622.950810] [<ffffffff81a32f22>] dump_stack+0x54/0x74 [ 622.950815] [<ffffffff810edb02>] __might_sleep+0x112/0x114 [ 622.950817] [<ffffffff81a396ed>] mutex_lock_nested+0x3c/0x3c6 [ 622.950818] [<ffffffff810e861d>] ? up+0x39/0x3e [ 622.950821] [<ffffffff8153ea7c>] ? acpi_os_signal_semaphore+0x21/0x2d [ 622.950824] [<ffffffff81565ed1>] ? acpi_ut_release_mutex+0x5e/0x62 [ 622.950828] [<ffffffff816d04ec>] virtnet_cpu_callback+0x33/0x87 [ 622.950830] [<ffffffff81a42576>] notifier_call_chain+0x3c/0x5e [ 622.950832] [<ffffffff810e86a8>] __raw_notifier_call_chain+0xe/0x10 [ 622.950835] [<ffffffff810c5556>] __cpu_notify+0x20/0x37 [ 622.950836] [<ffffffff810c5580>] cpu_notify+0x13/0x15 [ 622.950838] [<ffffffff81a237cd>] take_cpu_down+0x27/0x3a [ 622.950841] [<ffffffff81136289>] stop_machine_cpu_stop+0x93/0xf1 [ 622.950842] [<ffffffff81136167>] cpu_stopper_thread+0xa0/0x12f [ 622.950844] [<ffffffff811361f6>] ? cpu_stopper_thread+0x12f/0x12f [ 622.950847] [<ffffffff81119710>] ? lock_release_holdtime.part.7+0xa3/0xa8 [ 622.950848] [<ffffffff81135e4b>] ? cpu_stop_should_run+0x3f/0x47 [ 622.950850] [<ffffffff810ea9b0>] smpboot_thread_fn+0x1c5/0x1e3 [ 622.950852] [<ffffffff810ea7eb>] ? lg_global_unlock+0x67/0x67 [ 622.950854] [<ffffffff810e36b7>] kthread+0xd8/0xe0 [ 622.950857] [<ffffffff81a3bfad>] ? wait_for_common+0x12f/0x164 [ 622.950859] [<ffffffff810e35df>] ? kthread_create_on_node+0x124/0x124 [ 622.950861] [<ffffffff81a45ffc>] ret_from_fork+0x7c/0xb0 [ 622.950862] [<ffffffff810e35df>] ? kthread_create_on_node+0x124/0x124 [ 622.950876] smpboot: CPU 1 is now offline [ 623.194556] SMP alternatives: lockdep: fixing up alternatives [ 623.194559] smpboot: Booting Node 0 Processor 1 APIC 0x1 ... A correct fix is to unregister the hotcpu notifier during restore and register a new one in resume. Reported-by:
Fengguang Wu <fengguang.wu@intel.com> Tested-by:
Jason Wang <jasowang@redhat.com> Acked-by:
Michael S. Tsirkin <mst@redhat.com> Reviewed-by:
Wanlong Gao <gaowanlong@cn.fujitsu.com> Signed-off-by:
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- 29 Oct, 2013 10 commits
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Vlad Yasevich authored
Currently multicast code attempts to extrace the vlan id from the skb even when vlan filtering is disabled. This can lead to mdb entries being created with the wrong vlan id. Pass the already extracted vlan id to the multicast filtering code to make the correct id is used in creation as well as lookup. Signed-off-by:
Vlad Yasevich <vyasevic@redhat.com> Acked-by:
Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitchDavid S. Miller authored
Jesse Gross says: ==================== One patch for net/3.12 fixing an issue where devices could be in an invalid state they are removed while still attached to OVS. ==================== Signed-off-by: -
Michael Drüing authored
Update the URLs in the Kconfig file to the new pages at sangoma.com and cisco.com Signed-off-by:
Michael Drüing <michael@drueing.de> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller authored
Pablo Neira Ayuso says: ==================== This pull request contains the following netfilter fix: * fix --queue-bypass in xt_NFQUEUE revision 3. While adding the revision 3 of this target, the bypass flags were not correctly handled anymore, thus, breaking packet bypassing if no application is listening from userspace, patch from Holger Eitzenberger, reported by Florian Westphal. ==================== Signed-off-by: -
Holger Eitzenberger authored
V3 of the NFQUEUE target ignores the --queue-bypass flag, causing packets to be dropped when the userspace listener isn't running. Regression is in since 8746ddcf ("netfilter: xt_NFQUEUE: introduce CPU fanout"). Reported-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
Holger Eitzenberger <holger@eitzenberger.org> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org>
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Wei Liu authored
time_after_eq() only works if the delta is < MAX_ULONG/2. For a 32bit Dom0, if netfront sends packets at a very low rate, the time between subsequent calls to tx_credit_exceeded() may exceed MAX_ULONG/2 and the test for timer_after_eq() will be incorrect. Credit will not be replenished and the guest may become unable to send packets (e.g., if prior to the long gap, all credit was exhausted). Use jiffies_64 variant to mitigate this problem for 32bit Dom0. Suggested-by:
Jan Beulich <jbeulich@suse.com> Signed-off-by:
Wei Liu <wei.liu2@citrix.com> Reviewed-by:
David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Jason Luan <jianhai.luan@oracle.com> Signed-off-by:
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Ben Hutchings authored
The length calculation here is now invalid on 32-bit architectures, since sk_buff::tail is a pointer and sk_buff::transport_header is an integer offset: drivers/net/ethernet/chelsio/cxgb3/sge.c: In function 'write_ofld_wr': drivers/net/ethernet/chelsio/cxgb3/sge.c:1603:9: warning: passing argument 4 of 'make_sgl' makes integer from pointer without a cast [enabled by default] adap->pdev); ^ drivers/net/ethernet/chelsio/cxgb3/sge.c:964:28: note: expected 'unsigned int' but argument is of type 'sk_buff_data_t' static inline unsigned int make_sgl(const struct sk_buff *skb, ^ Use the appropriate skb accessor functions. Compile-tested only. Signed-off-by:Ben Hutchings <ben@decadent.org.uk> Fixes: 1a37e412 ('net: Use 16bits for *_headers fields of struct skbuff') Signed-off-by:
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Ariel Elior authored
When the bnx2x driver is rmmoded, if VFs of a given PF will be assigned to a VM then that PF will be unable to call `pci_disable_sriov()'. If for that same PF there would also exist unassigned VFs in the hypervisor, the result will be that after the removal there will still be virtual PCI functions on the hypervisor. If the bnx2x module were to be re-inserted, the result will be that the VFs on the hypervisor will be re-probed directly following the PF's probe, even though that in regular loading flow sriov is only enabled once PF is loaded. The probed VF will then try to access its bar, causing a PCI error as the HW is not in a state enabling such a request. This patch adds a missing disablement procedure to the PF's removal, one that sets registers viewable to the VF to indicate that the VFs have no permission to access the bar, thus resulting in probe errors instead of PCI errors. Signed-off-by:
Ariel Elior <ariele@broadcom.com> Signed-off-by:
Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by:
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Dmitry Kravkov authored
Buffers for FW statistics were allocated at an inappropriate time; In a machine where the driver encounters problems allocating all of its queues, the driver would still create FW requests for the statistics of the non-existing queues. The wrong order of memory allocation could lead to zeroed statistics messages being sent, leading to fw assert in case function 0 was down. This changes the order of allocations, guaranteeing that statistic requests will only be generated for actual queues. Signed-off-by:
Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by:
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Eric Dumazet authored
commit 6ff50cd5 ("tcp: gso: do not generate out of order packets") had an heuristic that can trigger a warning in skb_try_coalesce(), because skb->truesize of the gso segments were exactly set to mss. This breaks the requirement that skb->truesize >= skb->len + truesizeof(struct sk_buff); It can trivially be reproduced by : ifconfig lo mtu 1500 ethtool -K lo tso off netperf As the skbs are looped into the TCP networking stack, skb_try_coalesce() warns us of these skb under-estimating their truesize. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reported-by:
Alexei Starovoitov <ast@plumgrid.com> Signed-off-by:
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- 28 Oct, 2013 2 commits
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Steffen Klassert authored
With the removal of the routing cache, we lost the option to tweak the garbage collector threshold along with the maximum routing cache size. So git commit 703fb94e ("xfrm: Fix the gc threshold value for ipv4") moved back to a static threshold. It turned out that the current threshold before we start garbage collecting is much to small for some workloads, so increase it from 1024 to 32768. This means that we start the garbage collector if we have more than 32768 dst entries in the system and refuse new allocations if we are above 65536. Reported-by:
Wolfgang Walter <linux@stwm.de> Signed-off-by:
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Eric Dumazet authored
When a socket is freed/reallocated, we need to clear time_next_packet or else we can inherit a prior value and delay first packets of the new flow. Signed-off-by:
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- 27 Oct, 2013 5 commits
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Randy Dunlap authored
Various typo fixes to netdev-FAQ.txt: - capitalize Linux - hyphenate dual-word adjectives - minor punctuation fixes Signed-off-by:
Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by:
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Yuchung Cheng authored
Patch ed08495c "tcp: use RTT from SACK for RTO" always re-arms RTO upon obtaining a RTT sample from newly sacked data. But technically RTO should only be re-armed when the data sent before the last (re)transmission of write queue head are (s)acked. Otherwise the RTO may continue to extend during loss recovery on data sent in the future. Note that RTTs from ACK or timestamps do not have this problem, as the RTT source must be from data sent before. The new RTO re-arm policy is 1) Always re-arm RTO if SND.UNA is advanced 2) Re-arm RTO if sack RTT is available, provided the sacked data was sent before the last time write_queue_head was sent. Signed-off-by:
Larry Brakmo <brakmo@google.com> Signed-off-by:
Yuchung Cheng <ycheng@google.com> Acked-by:
Neal Cardwell <ncardwell@google.com> Acked-by:
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Yuchung Cheng authored
Patch ed08495c "tcp: use RTT from SACK for RTO" has a bug that it does not check if the ACK acknowledge new data before taking the RTT sample from TCP timestamps. This patch adds the check back as required by the RFC. Signed-off-by:
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Yuchung Cheng authored
tp->lsndtime may not always be the SYNACK timestamp if a passive Fast Open socket sends data before handshake completes. And if the remote acknowledges both the data and the SYNACK, the RTT sample is already taken in tcp_ack(), so no need to call tcp_update_ack_rtt() in tcp_synack_rtt_meas() aagain. Signed-off-by:
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Somnath Kotur authored
be2net: Warn users of possible broken functionality on BE2 cards with very old FW versions with latest driver On very old FW versions < 4.0, the mailbox command to set interrupts on the card succeeds even though it is not supported and should have failed, leading to a scenario where interrupts do not work. Hence warn users to upgrade to a suitable FW version to avoid seeing broken functionality. Signed-off-by:
Somnath Kotur <somnath.kotur@emulex.com> Signed-off-by:
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- 26 Oct, 2013 3 commits
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David S. Miller authored
Shahed Shaikh says: ==================== qlcnic: Bug fixes This patch series contains following fixes- * Performace drop because driver was forcing adapter not to check destination IP for LRO. * driver was not issuing qlcnic_fw_cmd_set_drv_version() to 83xx adapter becasue of improper handling of QLCNIC_FW_CAPABILITY_MORE_CAPS bit. ==================== Signed-off-by: -
Shahed Shaikh authored
Only 82xx adapter advertises QLCNIC_FW_CAPABILITY_MORE_CAPS bit. Reading this bit from 83xx adapter causes the driver to skip extra capabilities registers. Because of this, driver was not issuing qlcnic_fw_cmd_set_drv_version() for 83xx adapter. This bug was introduced in commit 8af3f33d ("qlcnic: Add support for 'set driver version' in 83XX"). Signed-off-by:
Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by:
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Shahed Shaikh authored
Forcing adapter to perform LRO without destination IP check degrades the performance. Signed-off-by:
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- 25 Oct, 2013 7 commits
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Freddy Xin authored
ax88179_178a: Remove AX_MEDIUM_ALWAYS_ONE bit in AX_MEDIUM_STATUS_MODE register to avoid TX throttling Remove AX_MEDIUM_ALWAYS_ONE in AX_MEDIUM_STATUS_MODE register. Setting this bit may cause TX throttling in Half-Duplex mode. Signed-off-by:
Freddy Xin <freddy@asix.com.tw> Signed-off-by:
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Hannes Frederic Sowa authored
On receiving a packet too big icmp error we check if our current cached dst_entry in the socket is still valid. This validation check did not care about the expiration of the (cached) route. The error path I traced down: The socket receives a packet too big mtu notification. It still has a valid dst_entry and thus issues the ip6_rt_pmtu_update on this dst_entry, setting RTF_EXPIRE and updates the dst.expiration value (which could fail because of not up-to-date expiration values, see previous patch). In some seldom cases we race with a) the ip6_fib gc or b) another routing lookup which would result in a recreation of the cached rt6_info from its parent non-cached rt6_info. While copying the rt6_info we reinitialize the metrics store by copying it over from the parent thus invalidating the just installed pmtu update (both dsts use the same key to the inetpeer storage). The dst_entry with the just invalidated metrics data would just get its RTF_EXPIRES flag cleared and would continue to stay valid for the socket. We should have not issued the pmtu update on the already expired dst_entry in the first placed. By checking the expiration on the dst entry and doing a relookup in case it is out of date we close the race because we would install a new rt6_info into the fib before we issue the pmtu update, thus closing this race. Not reliably updating the dst.expire value was fixed by the patch "ipv6: reset dst.expires value when clearing expire flag". Reported-by:
Steinar H. Gunderson <sgunderson@bigfoot.com> Reported-by:
Valentijn Sessink <valentyn@blub.net> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by:
Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by:
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Hannes Frederic Sowa authored
On receiving a packet too big icmp error we update the expire value by calling rt6_update_expires. This function uses dst_set_expires which is implemented that it can only reduce the expiration value of the dst entry. If we insert new routing non-expiry information into the ipv6 fib where we already have a matching rt6_info we only clear the RTF_EXPIRES flag in rt6i_flags and leave the dst.expires value as is. When new mtu information arrives for that cached dst_entry we again call dst_set_expires. This time it won't update the dst.expire value because we left the dst.expire value intact from the last update. So dst_set_expires won't touch dst.expires. Fix this by resetting dst.expires when clearing the RTF_EXPIRE flag. dst_set_expires checks for a zero expiration and updates the dst.expires. In the past this (not updating dst.expires) was necessary because dst.expire was placed in a union with the dst_entry *from reference and rt6_clean_expires did assign NULL to it. This split happend in ecd98837 ("ipv6: fix race condition regarding dst->expires and dst->from"). Reported-by:
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Antonio Quartulli authored
Right now skb->data is passed to rx_hook() even if the skb has not been linearised and without giving rx_hook() a way to linearise it. Change the rx_hook() interface and make it accept the skb and the offset to the UDP payload as arguments. rx_hook() is also renamed to rx_skb_hook() to ensure that out of the tree users notice the API change. In this way any rx_skb_hook() implementation can perform all the needed operations to properly (and safely) access the skb data. Signed-off-by:
Antonio Quartulli <antonio@meshcoding.com> Signed-off-by:
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Nikolay Aleksandrov authored
In every netconsole option that can be set through configfs there's a race when checking for nt->enabled since it can be modified at the same time. Probably the most damage can be done by store_enabled when racing with another instance of itself. Fix all the races with one stone by moving the mutex lock around the ->store call for all options. Signed-off-by:
Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by:
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Nikolay Aleksandrov authored
We need to disable the netconsole (enabled = 0) before setting nt->np.dev to NULL because otherwise we might still have users after the netpoll_cleanup() since nt->enabled is set afterwards and we can have a message which will result in a NULL pointer dereference. It is very easy to hit dereferences all over the netpoll_send_udp function by running the following two loops in parallel: while [ 1 ]; do echo 1 > enabled; echo 0 > enabled; done; while [ 1 ]; do echo 00:11:22:33:44:55 > remote_mac; done; (the second loop is to generate messages, it can be done by anything) We're safe to set nt->np.dev = NULL and nt->enabled = 0 with the spinlock since it's required in the write_msg() function. Signed-off-by:
Veacelsav Falico <vfalico@redhat.com> Signed-off-by:
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Sebastian Siewior authored
There is also a C function doing the same thing. Unless the asm code is 110% faster we could stick to the C function. Signed-off-by:
Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by:
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- 23 Oct, 2013 6 commits
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Daniel Borkmann authored
Commit 8a07eb0a ("sctp: Add ASCONF operation on the single-homed host") implemented possible use of IPv4 addresses with non SCTP_ADDR_SRC state as source address when sending ASCONF (ADD) packets, but IPv6 part for that was not implemented in 8a07eb0a. Therefore, as this is not restricted to IPv4-only, fix this up to allow the same for IPv6 addresses in SCTP. Signed-off-by:
Daniel Borkmann <dborkman@redhat.com> Cc: Michio Honda <micchie@sfc.wide.ad.jp> Acked-by:
Michio Honda <micchie@sfc.wide.ad.jp> Acked-by:
Vlad Yasevich <vyasevich@gmail.com> Acked-by:
Neil Horman <nhorman@tuxdriver.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller authored
Pablo Neira Ayuso says: ==================== The following patchset contains three netfilter fixes for your net tree, they are: * A couple of fixes to resolve info leak to userspace due to uninitialized memory area in ulogd, from Mathias Krause. * Fix instruction ordering issues that may lead to the access of uninitialized data in x_tables. The problem involves the table update (producer) and the main packet matching (consumer) routines. Detected in SMP ARMv7, from Will Deacon. ==================== Signed-off-by: -
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 fixes from Martin Schwidefsky: "Several last minute bug fixes. Two of them are on the larger side for rc7, the dasd format patch for older storage devices and the store-clock-fast patch where we have been to optimistic with an optimization" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/time: correct use of store clock fast s390/vmlogrdr: fix array access in vmlogrdr_open() s390/compat,signal: fix return value of copy_siginfo_(to|from)_user32() s390/dasd: check for availability of prefix command during format s390/mm,kvm: fix software dirty bits vs. kvm for old machines
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git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linuxLinus Torvalds authored
Pull thermal management fixes from Zhang Rui: "These includes several commits that are necessary to properly fix regression for TMU test MUX address setting after reset, for exynos thermal driver. Specifics: - fix a regression that the removal of setting a certain field at TMU configuration setting results in immediately shutdown after reset on Exynos4412 SoC. - revert a patch which tries to link the thermal_zone device and its hwmon node but breaks libsensors. - fix a deadlock/lockdep warning issue in x86_pkg_temp thermal driver, which can be reproduced on a buggy platform only. - fix ti-soc-thermal driver to fall back on bandgap reading when reading from PCB temperature sensor fails" * 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: Revert "drivers: thermal: parent virtual hwmon with thermal zone" drivers: thermal: allow ti-soc-thermal run without pcb zone thermal: exynos: Provide initial setting for TMU's test MUX address at Exynos4412 thermal: exynos: Provide separate TMU data for Exynos4412 thermal: exynos: Remove check for thermal device pointer at exynos_report_trigger() Thermal: x86_pkg_temp: change spin lock -
Randy Dunlap authored
Fix build error in asus_wmi.c when ASUS_WMI=y and ACPI_VIDEO=m by preventing that combination. drivers/built-in.o: In function `asus_wmi_probe': asus-wmi.c:(.text+0x65ddb4): undefined reference to `acpi_video_unregister' Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Kent Overstreet authored
Signed-off-by:
Kent Overstreet <kmo@daterainc.com> Cc: linux-stable <stable@vger.kernel.org> # >= v3.10 Signed-off-by:
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