linux-kernel - Re: [RESEND PATCH] selftests/bpf: Fix bpf selftest build warning

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Message-ID: <2025051204-numbness-nephew-05f9@gregkh>
Date: Mon, 12 May 2025 11:23:37 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Saket Kumar Bhaskar <skb99@...ux.ibm.com>
Cc: bpf@...r.kernel.org, linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-next@...r.kernel.org,
	hbathini@...ux.ibm.com, maddy@...ux.ibm.com, venkat88@...ux.ibm.com,
	sfr@...b.auug.org.au, alexei.starovoitov@...il.com,
	daniel@...earbox.net, mykolal@...com, yoong.siang.song@...el.com,
	martin.lau@...ux.dev, song@...nel.org, yonghong.song@...ux.dev,
	john.fastabend@...il.com, kpsingh@...nel.org, sdf@...ichev.me,
	haoluo@...gle.com, jolsa@...nel.org, shuah@...nel.org
Subject: Re: [RESEND PATCH] selftests/bpf: Fix bpf selftest build warning

On Mon, May 12, 2025 at 02:45:11PM +0530, Saket Kumar Bhaskar wrote:
> On linux-next, build for bpf selftest displays a warning:
> 
> Warning: Kernel ABI header at 'tools/include/uapi/linux/if_xdp.h'
> differs from latest version at 'include/uapi/linux/if_xdp.h'.
> 
> Commit 8066e388be48 ("net: add UAPI to the header guard in various network headers")
> changed the header guard from _LINUX_IF_XDP_H to _UAPI_LINUX_IF_XDP_H
> in include/uapi/linux/if_xdp.h.
> 
> To resolve the warning, update tools/include/uapi/linux/if_xdp.h
> to align with the changes in include/uapi/linux/if_xdp.h
> 
> Fixes: 8066e388be48 ("net: add UAPI to the header guard in various network headers")
> Reported-by: Venkat Rao Bagalkote <venkat88@...ux.ibm.com>
> Closes: https://lore.kernel.org/all/c2bc466d-dff2-4d0d-a797-9af7f676c065@linux.ibm.com/
> Tested-by: Venkat Rao Bagalkote <venkat88@...ux.ibm.com>
> Signed-off-by: Saket Kumar Bhaskar <skb99@...ux.ibm.com>
> ---
> 
> [RESEND]:
>  - Added Fixes and Tested-by tag.
>  - Added Greg as receipent for driver-core tree.

Why?  Commit 8066e388be48 ("net: add UAPI to the header guard in various
network headers") is not in that tree/branch, so why do I need it?

confused,

greg k-h