From 97449a5f1a586d2befde5297b0fcb0bfdade774e Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 9 Apr 2026 14:56:23 +0000 Subject: tcp: change tcp_filter() to return the reason by value sk_filter_trim_cap() will soon return the reason by value, do the same for tcp_filter(). Note: tcp_filter() is no longer inlined. Following patch will inline it again. $ scripts/bloat-o-meter -t vmlinux.4 vmlinux.5 add/remove: 2/0 grow/shrink: 0/2 up/down: 186/-43 (143) Function old new delta tcp_filter - 154 +154 __pfx_tcp_filter - 32 +32 tcp_v4_rcv 3152 3143 -9 tcp_v6_rcv 3169 3135 -34 Total: Before=29722640, After=29722783, chg +0.00% Signed-off-by: Eric Dumazet Link: https://patch.msgid.link/20260409145625.2306224-5-edumazet@google.com Signed-off-by: Jakub Kicinski --- include/net/tcp.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'include/net') diff --git a/include/net/tcp.h b/include/net/tcp.h index 6156d1d068e1..098e52269a04 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1683,12 +1683,14 @@ static inline bool tcp_checksum_complete(struct sk_buff *skb) bool tcp_add_backlog(struct sock *sk, struct sk_buff *skb, enum skb_drop_reason *reason); -static inline int tcp_filter(struct sock *sk, struct sk_buff *skb, - enum skb_drop_reason *reason) +static inline enum skb_drop_reason +tcp_filter(struct sock *sk, struct sk_buff *skb) { const struct tcphdr *th = (const struct tcphdr *)skb->data; + enum skb_drop_reason reason; - return sk_filter_trim_cap(sk, skb, __tcp_hdrlen(th), reason); + sk_filter_trim_cap(sk, skb, __tcp_hdrlen(th), &reason); + return reason; } void tcp_set_state(struct sock *sk, int state); -- cgit v1.2.3