linux-kernel - Re: [PATCH v4] bpftool: Add 'prepend' option for tcx attach to insert at chain start

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Message-Id: 
 <176860380780.826620.7253991857849966503.git-patchwork-notify@kernel.org>
Date: Fri, 16 Jan 2026 22:50:07 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: None <gyutae.opensource@...ercorp.com>
Cc: qmo@...nel.org, bpf@...r.kernel.org, daniel@...earbox.net,
 linux-kernel@...r.kernel.org, ast@...nel.org, andrii@...nel.org,
 martin.lau@...ux.dev, eddyz87@...il.com, song@...nel.org,
 yonghong.song@...ux.dev, john.fastabend@...il.com, kpsingh@...nel.org,
 sdf@...ichev.me, haoluo@...gle.com, jolsa@...nel.org,
 gyutae.bae@...ercorp.com, siwan.kim@...ercorp.com, dxu@...uu.xyz,
 jiayuan.chen@...ux.dev, chen.dylane@...ux.dev, memxor@...il.com
Subject: Re: [PATCH v4] bpftool: Add 'prepend' option for tcx attach to insert
 at
 chain start

Hello:

This patch was applied to bpf/bpf-next.git (master)
by Andrii Nakryiko <andrii@...nel.org>:

On Mon, 12 Jan 2026 12:45:16 +0900 you wrote:
> From: Gyutae Bae <gyutae.bae@...ercorp.com>
> 
> Add support for the 'prepend' option when attaching tcx_ingress and
> tcx_egress programs. This option allows inserting a BPF program at
> the beginning of the TCX chain instead of appending it at the end.
> 
> The implementation uses BPF_F_BEFORE flag which automatically inserts
> the program at the beginning of the chain when no relative reference
> is specified.
> 
> [...]

Here is the summary with links:
  - [v4] bpftool: Add 'prepend' option for tcx attach to insert at chain start
    https://git.kernel.org/bpf/bpf-next/c/999b2395e3c3

You are awesome, thank you!
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