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d5fb143dbe
tcp_rack_advance() is called from tcp_ack() and tcp_sacktag_one(). Moving it to tcp_input.c allows the compiler to inline it and save both space and cpu cycles in TCP fast path. $ scripts/bloat-o-meter -t vmlinux.1 vmlinux.2 add/remove: 0/2 grow/shrink: 1/1 up/down: 98/-132 (-34) Function old new delta tcp_ack 5741 5839 +98 tcp_sacktag_one 407 395 -12 __pfx_tcp_rack_advance 16 - -16 tcp_rack_advance 104 - -104 Total: Before=22572680, After=22572646, chg -0.00% Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20260127032147.3498272-4-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>