Subject: Re: [PATCH net-next] tcp: move tcp_rate_skb_delivered() to tcp_input.c

From: [email-masked]
Date: Wed, 21 Jan 2026 03:10:16 +0000

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <[email-masked]>:

On Sun, 18 Jan 2026 12:32:04 +0000 you wrote:
> 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%
> 
> [...]

Here is the summary with links:
  - [net-next] tcp: move tcp_rate_skb_delivered() to tcp_input.c
    https://git.kernel.org/netdev/net-next/c/670ade3bfae6

You are awesome, thank you!
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