From 87737cd76e44fe5d481e7da2021b925191ccab53 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 20 Jan 2026 16:49:02 +0000 Subject: gro: inline tcp6_gro_receive() FDO/LTO are unable to inline tcp6_gro_receive() from ipv6_gro_receive() Make sure tcp6_check_fraglist_gro() is only called only when needed, so that compiler can leave it out-of-line. $ scripts/bloat-o-meter -t vmlinux.1 vmlinux.2 add/remove: 2/0 grow/shrink: 3/1 up/down: 1123/-253 (870) Function old new delta ipv6_gro_receive 1069 1846 +777 tcp6_check_fraglist_gro - 272 +272 ipv6_offload_init 218 274 +56 __pfx_tcp6_check_fraglist_gro - 16 +16 ipv6_gro_complete 433 435 +2 tcp6_gro_receive 959 706 -253 Total: Before=22592662, After=22593532, chg +0.00% Signed-off-by: Eric Dumazet Link: https://patch.msgid.link/20260120164903.1912995-3-edumazet@google.com Signed-off-by: Jakub Kicinski --- include/net/gro.h | 3 +-- include/net/tcp.h | 1 - 2 files changed, 1 insertion(+), 3 deletions(-) (limited to 'include') diff --git a/include/net/gro.h b/include/net/gro.h index b65f631c521d..85e5eeed4c90 100644 --- a/include/net/gro.h +++ b/include/net/gro.h @@ -405,8 +405,7 @@ INDIRECT_CALLABLE_DECLARE(struct sk_buff *udp4_gro_receive(struct list_head *, struct sk_buff *)); INDIRECT_CALLABLE_DECLARE(int udp4_gro_complete(struct sk_buff *, int)); -INDIRECT_CALLABLE_DECLARE(struct sk_buff *udp6_gro_receive(struct list_head *, - struct sk_buff *)); +struct sk_buff *udp6_gro_receive(struct list_head *, struct sk_buff *); INDIRECT_CALLABLE_DECLARE(int udp6_gro_complete(struct sk_buff *, int)); #define indirect_call_gro_receive_inet(cb, f2, f1, head, skb) \ diff --git a/include/net/tcp.h b/include/net/tcp.h index 25143f156957..0941b7b5067c 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -2325,7 +2325,6 @@ struct sk_buff *tcp_gro_receive(struct list_head *head, struct sk_buff *skb, INDIRECT_CALLABLE_DECLARE(int tcp4_gro_complete(struct sk_buff *skb, int thoff)); INDIRECT_CALLABLE_DECLARE(struct sk_buff *tcp4_gro_receive(struct list_head *head, struct sk_buff *skb)); INDIRECT_CALLABLE_DECLARE(int tcp6_gro_complete(struct sk_buff *skb, int thoff)); -INDIRECT_CALLABLE_DECLARE(struct sk_buff *tcp6_gro_receive(struct list_head *head, struct sk_buff *skb)); #ifdef CONFIG_INET void tcp_gro_complete(struct sk_buff *skb); #else -- cgit v1.2.3