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| author | Eric Dumazet <edumazet@google.com> | 2021-11-15 11:02:41 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-11-16 13:10:34 +0000 |
| commit | d2489c7b6d7d5ed4b32b56703c57c47bfbfe7fa5 (patch) | |
| tree | fa179aa92c68c6c5d77cf2c1ba185cf08d24bcea /net/core/sock.c | |
| parent | tcp: small optimization in tcp recvmsg() (diff) | |
| download | linux-d2489c7b6d7d5ed4b32b56703c57c47bfbfe7fa5.tar.gz linux-d2489c7b6d7d5ed4b32b56703c57c47bfbfe7fa5.zip | |
tcp: add RETPOLINE mitigation to sk_backlog_rcv
Use INDIRECT_CALL_INET() to avoid an indirect call
when/if CONFIG_RETPOLINE=y
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/sock.c')
| -rw-r--r-- | net/core/sock.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index 99738e14224c..c57d9883f62c 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -327,7 +327,10 @@ int __sk_backlog_rcv(struct sock *sk, struct sk_buff *skb) BUG_ON(!sock_flag(sk, SOCK_MEMALLOC)); noreclaim_flag = memalloc_noreclaim_save(); - ret = sk->sk_backlog_rcv(sk, skb); + ret = INDIRECT_CALL_INET(sk->sk_backlog_rcv, + tcp_v6_do_rcv, + tcp_v4_do_rcv, + sk, skb); memalloc_noreclaim_restore(noreclaim_flag); return ret; |