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| author |   Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2022-01-18 10:54:02 +0000 |
|---|---|---|
| committer | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2022-01-18 10:54:02 +0000 |
| commit | 647bfd26bf054313305ea9c2c4a1c71f3bbfee63 (patch) | |
| tree | 49abfde459ef32c9811d06ae59dfbaf0000762ab /net/core/dev.c | |
| parent | i915: make array flex_regs static const (diff) | |
| parent | Merge tag 'amd-drm-next-5.17-2022-01-12' of https://gitlab.freedesktop.org/agd5f/linux into drm-next (diff) | |
| download | wireguard-linux-647bfd26bf054313305ea9c2c4a1c71f3bbfee63.tar.xz wireguard-linux-647bfd26bf054313305ea9c2c4a1c71f3bbfee63.zip | |
Merge drm/drm-next into drm-intel-gt-next
Maarten needs backmerge to account for header file renames/changes which
landed via drm-intel-next and are interfering with his pinning work.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 15ac064b5562..2a352e668d10 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4210,7 +4210,10 @@ static int __dev_queue_xmit(struct sk_buff *skb, struct net_device *sb_dev) if (dev->flags & IFF_UP) { int cpu = smp_processor_id(); /* ok because BHs are off */ - if (txq->xmit_lock_owner != cpu) { + /* Other cpus might concurrently change txq->xmit_lock_owner + * to -1 or to their cpu id, but not to our id. + */ + if (READ_ONCE(txq->xmit_lock_owner) != cpu) { if (dev_xmit_recursion()) goto recursion_alert; |