From e9cd04b2816f8ebae9b274f5c52145c8f40d4a6f Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 5 Jan 2026 10:17:19 +0000 Subject: udp: udplite is unlikely Add some unlikely() annotations to speed up the fast path, at least with clang compiler. Signed-off-by: Eric Dumazet Link: https://patch.msgid.link/20260105101719.2378881-1-edumazet@google.com Signed-off-by: Jakub Kicinski --- include/net/udp.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include/net') diff --git a/include/net/udp.h b/include/net/udp.h index a061d1b22ddc..700dbedcb15f 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -527,18 +527,18 @@ static inline int copy_linear_skb(struct sk_buff *skb, int len, int off, * SNMP statistics for UDP and UDP-Lite */ #define UDP_INC_STATS(net, field, is_udplite) do { \ - if (is_udplite) SNMP_INC_STATS((net)->mib.udplite_statistics, field); \ + if (unlikely(is_udplite)) SNMP_INC_STATS((net)->mib.udplite_statistics, field); \ else SNMP_INC_STATS((net)->mib.udp_statistics, field); } while(0) #define __UDP_INC_STATS(net, field, is_udplite) do { \ - if (is_udplite) __SNMP_INC_STATS((net)->mib.udplite_statistics, field); \ + if (unlikely(is_udplite)) __SNMP_INC_STATS((net)->mib.udplite_statistics, field); \ else __SNMP_INC_STATS((net)->mib.udp_statistics, field); } while(0) #define __UDP6_INC_STATS(net, field, is_udplite) do { \ - if (is_udplite) __SNMP_INC_STATS((net)->mib.udplite_stats_in6, field);\ + if (unlikely(is_udplite)) __SNMP_INC_STATS((net)->mib.udplite_stats_in6, field); \ else __SNMP_INC_STATS((net)->mib.udp_stats_in6, field); \ } while(0) #define UDP6_INC_STATS(net, field, __lite) do { \ - if (__lite) SNMP_INC_STATS((net)->mib.udplite_stats_in6, field); \ + if (unlikely(__lite)) SNMP_INC_STATS((net)->mib.udplite_stats_in6, field); \ else SNMP_INC_STATS((net)->mib.udp_stats_in6, field); \ } while(0) -- cgit v1.2.3