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670ade3bfa
tcp_rate_skb_delivered() is only called from tcp_input.c. Move it there and make it static. Both gcc and clang are (auto)inlining it, TCP performance is increased at a small space cost. $ scripts/bloat-o-meter -t vmlinux.old vmlinux.new add/remove: 0/2 grow/shrink: 3/0 up/down: 509/-187 (322) Function old new delta tcp_sacktag_walk 1682 1867 +185 tcp_ack 5230 5405 +175 tcp_shifted_skb 437 586 +149 __pfx_tcp_rate_skb_delivered 16 - -16 tcp_rate_skb_delivered 171 - -171 Total: Before=22566192, After=22566514, chg +0.00% Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Neal Cardwell <ncardwell@google.com> Link: https://patch.msgid.link/20260118123204.2315993-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>