diff options
| author | Eric Dumazet <edumazet@google.com> | 2026-01-05 10:17:19 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-01-06 17:06:03 -0800 |
| commit | e9cd04b2816f8ebae9b274f5c52145c8f40d4a6f (patch) | |
| tree | 35b95b8046ae2b3aea3dc5ed465d2970ca115077 /net/ipv6 | |
| parent | e4bc5dd53bf5d46cd58f081ffccc3809e2be5373 (diff) | |
udp: udplite is unlikely
Add some unlikely() annotations to speed up the fast path,
at least with clang compiler.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260105101719.2378881-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/udp.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 794c13674e8a..010b909275dd 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -875,7 +875,8 @@ static int udpv6_queue_rcv_one_skb(struct sock *sk, struct sk_buff *skb) /* * UDP-Lite specific tests, ignored on UDP sockets (see net/ipv4/udp.c). */ - if (udp_test_bit(UDPLITE_RECV_CC, sk) && UDP_SKB_CB(skb)->partial_cov) { + if (unlikely(udp_test_bit(UDPLITE_RECV_CC, sk) && + UDP_SKB_CB(skb)->partial_cov)) { u16 pcrlen = READ_ONCE(up->pcrlen); if (pcrlen == 0) { /* full coverage was set */ @@ -1439,7 +1440,7 @@ csum_partial: send: err = ip6_send_skb(skb); - if (err) { + if (unlikely(err)) { if (err == -ENOBUFS && !inet6_test_bit(RECVERR6, sk)) { UDP6_INC_STATS(sock_net(sk), UDP_MIB_SNDBUFERRORS, is_udplite); |