netdev - Re: linux-next: build warning after merge of the bpf-next tree

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Message-ID: <bdca5369-57dd-4db4-82db-a2622d26c550@redhat.com>
Date: Fri, 27 Jun 2025 10:22:01 +0200
From: Viktor Malik <vmalik@...hat.com>
To: Stephen Rothwell <sfr@...b.auug.org.au>,
 Daniel Borkmann <daniel@...earbox.net>, Alexei Starovoitov <ast@...nel.org>,
 Andrii Nakryiko <andrii@...nel.org>
Cc: bpf <bpf@...r.kernel.org>, Networking <netdev@...r.kernel.org>,
 Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
 Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build warning after merge of the bpf-next tree

On 6/27/25 09:47, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the bpf-next tree, today's linux-next build (htmldocs)
> produced this warning:
> 
> kernel/bpf/helpers.c:3465: warning: expecting prototype for bpf_strlen(). Prototype was for bpf_strnlen() instead
> kernel/bpf/helpers.c:3557: warning: expecting prototype for strcspn(). Prototype was for bpf_strcspn() instead
> 
> Introduced by commit
> 
>   e91370550f1f ("bpf: Add kfuncs for read-only string operations")

Oh, good catch, thanks for the report.

Just sent a fix to bpf-next [1].

Viktor

[1]
https://lore.kernel.org/bpf/20250627082001.237606-1-vmalik@redhat.com/T/#u