linux-kernel - Re: [linux-next][selftests/bpf] Kernel ABI header at 'tools/include/uapi/linux/if

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Message-ID: <aB341KkxXB+gu3IV@linux.ibm.com>
Date: Fri, 9 May 2025 18:15:08 +0530
From: Saket Kumar Bhaskar <skb99@...ux.ibm.com>
To: Venkat Rao Bagalkote <venkat88@...ux.ibm.com>
Cc: bpf <bpf@...r.kernel.org>, Hari Bathini <hbathini@...ux.ibm.com>,
        Madhavan Srinivasan <maddy@...ux.ibm.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: [linux-next][selftests/bpf] Kernel ABI header at
 'tools/include/uapi/linux/if_xdp.h'

On Fri, May 09, 2025 at 05:38:12PM +0530, Venkat Rao Bagalkote wrote:
> Hello,
> 
> 
> I am observing build warnings. while compiling selftests/bpf on
> the next-20250508 repo.
> 
> 
> Warnings:
> 
> 
> Warning: Kernel ABI header at 'tools/include/uapi/linux/if_xdp.h'
> differs from latest version at 'include/uapi/linux/if_xdp.h'
> 
> 
> Auto-detecting system features:
> ...                                    llvm: [ on  ]
> 
>   MKDIR    libbpf
>   TEST-HDR [test_progs] tests.h
>   MKDIR    bpftool
>   MKDIR    include
>   MKDIR    no_alu32
>   MKDIR    cpuv4
>   TEST-HDR [test_maps] tests.h
>   MKDIR    resolve_btfids
>   LIB      liburandom_read.so
>   SIGN-FILE sign-file
>   BINARY   uprobe_multi
>   MKDIR
>   GEN /root/linux-next/tools/testing/selftests/bpf/bpf-helpers.rst
>   GEN /root/linux-next/tools/testing/selftests/bpf/bpf-syscall.rst
>   GEN /root/linux-next/tools/testing/selftests/bpf/tools/build/libbpf/bpf_helper_defs.h
>   INSTALL /root/linux-next/tools/testing/selftests/bpf/tools/include/bpf/bpf.h
>   INSTALL /root/linux-next/tools/testing/selftests/bpf/tools/include/bpf/libbpf.h
>   INSTALL /root/linux-next/tools/testing/selftests/bpf/tools/include/bpf/btf.h
>   INSTALL /root/linux-next/tools/testing/selftests/bpf/tools/include/bpf/libbpf_common.h
>   INSTALL /root/linux-next/tools/testing/selftests/bpf/tools/include/bpf/libbpf_legacy.h
>   INSTALL /root/linux-next/tools/testing/selftests/bpf/tools/include/bpf/bpf_helpers.h
>   INSTALL /root/linux-next/tools/testing/selftests/bpf/tools/include/bpf/bpf_tracing.h
>   INSTALL /root/linux-next/tools/testing/selftests/bpf/tools/include/bpf/bpf_endian.h
>   INSTALL /root/linux-next/tools/testing/selftests/bpf/tools/include/bpf/skel_internal.h
>   INSTALL /root/linux-next/tools/testing/selftests/bpf/tools/include/bpf/bpf_core_read.h
>   INSTALL /root/linux-next/tools/testing/selftests/bpf/tools/include/bpf/libbpf_version.h
>   INSTALL /root/linux-next/tools/testing/selftests/bpf/tools/include/bpf/usdt.bpf.h
>   GEN /root/linux-next/tools/testing/selftests/bpf/bpf-syscall.2
>   GEN /root/linux-next/tools/testing/selftests/bpf/tools/build/libbpf/libbpf.pc
> Warning: Kernel ABI header at 'tools/include/uapi/linux/if_xdp.h'
> differs from latest version at 'include/uapi/linux/if_xdp.h'
>   INSTALL /root/linux-next/tools/testing/selftests/bpf/tools/include/bpf/bpf_helper_defs.h
>   INSTALL libbpf_headers
>   BINARY   urandom_read
>   CC      /root/linux-next/tools/test
> 
> 
> If you happen to fix this, please add below tag.
> 
> 
> Reported-by: Venkat Rao Bagalkote <venkat88@...ux.ibm.com>
> 
> 
> 
> Regards,
> 
> Venkat.
> 
Thanks for reporting it Venkat. I have sent the potential fix to https://lore.kernel.org/all/20250509123802.695574-1-skb99@linux.ibm.com/

Thanks,
Saket