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Commit 94f633ea authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
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net/packet: remove data races in fanout operations



af_packet fanout uses RCU rules to ensure f->arr elements
are not dismantled before RCU grace period.

However, it lacks rcu accessors to make sure KCSAN and other tools
wont detect data races. Stupid compilers could also play games.

Fixes: dc99f600 ("packet: Add fanout support.")
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Reported-by: default avatar"Gong, Sishuai" <sishuai@purdue.edu>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ae1ea84b
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