diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-13 10:17:10 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-13 10:17:10 +0100 |
| commit | af40d16042d674442db8cf5fd654fabcd45fea44 (patch) | |
| tree | 56f80d083a4a7236a0ee7914ef2baa8222d65494 /net/core/dev.c | |
| parent | 9a0a930fe2535a76ad70d3f43caeccf0d86a3009 (diff) | |
| parent | 2585cf9dfaaddf00b069673f27bb3f8530e2039c (diff) | |
| download | linux-af40d16042d674442db8cf5fd654fabcd45fea44.tar.bz2 | |
Merge v5.15-rc5 into char-misc-next
We need the fixes in here as well, and also resolve some merge conflicts
in:
drivers/misc/eeprom/at25.c
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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; |