netdev - Re: [PATCH net-next 2/3] tcp: move tcp_rack_update_reo_wnd() to tcp

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Message-ID: <CAAVpQUDQCgr1agsXm73pZLwWg24MgDVYrDmuj3tu4ZO-XZ0=Zg@mail.gmail.com>
Date: Mon, 26 Jan 2026 19:28:17 -0800
From: Kuniyuki Iwashima <kuniyu@...gle.com>
To: Eric Dumazet <edumazet@...gle.com>
Cc: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>, 
	Neal Cardwell <ncardwell@...gle.com>, netdev@...r.kernel.org, eric.dumazet@...il.com
Subject: Re: [PATCH net-next 2/3] tcp: move tcp_rack_update_reo_wnd() to tcp_input.c

On Mon, Jan 26, 2026 at 7:21 PM Eric Dumazet <edumazet@...gle.com> wrote:
>
> tcp_rack_update_reo_wnd() is called only once from tcp_ack()
>
> Move it to tcp_input.c so that it can be inlined by the compiler
> to save space and cpu cycles.
>
> $ scripts/bloat-o-meter -t vmlinux.old vmlinux.new
> add/remove: 0/2 grow/shrink: 1/0 up/down: 110/-153 (-43)
> Function                                     old     new   delta
> tcp_ack                                     5631    5741    +110
> __pfx_tcp_rack_update_reo_wnd                 16       -     -16
> tcp_rack_update_reo_wnd                      137       -    -137
> Total: Before=22572723, After=22572680, chg -0.00%
>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Reviewed-by: Kuniyuki Iwashima <kuniyu@...gle.com>