net: fix __dev_kfree_skb_any() vs drop monitor
authorEric Dumazet <edumazet@google.com>
Thu, 23 Feb 2023 08:38:45 +0000 (08:38 +0000)
committerDavid S. Miller <davem@davemloft.net>
Fri, 24 Feb 2023 11:02:07 +0000 (11:02 +0000)
commitac3ad19584b26fae9ac86e4faebe790becc74491
treed4ace3fdc1fb1a4351fd90ff37185dea2ec54f75
parent1862de92c81c2a74ff05819aca20b0b83192c83b
net: fix __dev_kfree_skb_any() vs drop monitor

dev_kfree_skb() is aliased to consume_skb().

When a driver is dropping a packet by calling dev_kfree_skb_any()
we should propagate the drop reason instead of pretending
the packet was consumed.

Note: Now we have enum skb_drop_reason we could remove
enum skb_free_reason (for linux-6.4)

v2: added an unlikely(), suggested by Yunsheng Lin.

Fixes: e6247027e517 ("net: introduce dev_consume_skb_any()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yunsheng Lin <linyunsheng@huawei.com>
Reviewed-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/dev.c