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(parent: 7890e2f) | patch
net: add debug checks in napi_consume_skb and __napi_alloc_skb()
authorEric Dumazet <edumazet@google.com>
Wed, 8 Jun 2022 16:04:37 +0000 (09:04 -0700)
committerJakub Kicinski <kuba@kernel.org>
Fri, 10 Jun 2022 04:53:56 +0000 (21:53 -0700)
commitee2640df2393141a2975af726802b349d51713be
treeee1ded184dbb821ea3159db968a2eea9803a01d1tree | snapshot
parent7890e2f09d437f79e67cd37bf3e820fa0cddf2becommit | diff
net: add debug checks in napi_consume_skb and __napi_alloc_skb()

Commit 6454eca81eae ("net: Use lockdep_assert_in_softirq()
in napi_consume_skb()") added a check in napi_consume_skb()
which is a bit weak.

napi_consume_skb() and __napi_alloc_skb() should only
be used from BH context, not from hard irq or nmi context,
otherwise we could have races.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
net/core/skbuff.c diff | blob | history
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