netdev - Re: [PATCH net-next] selftests: drv-net: Enable BTF

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Message-Id: 
 <175892220800.64518.6633677086051129890.git-patchwork-notify@kernel.org>
Date: Fri, 26 Sep 2025 21:30:08 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Stanislav Fomichev <sdf@...ichev.me>
Cc: netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, andrew+netdev@...n.ch, shuah@...nel.org,
 ast@...nel.org, daniel@...earbox.net, hawk@...nel.org,
 john.fastabend@...il.com, linux-kselftest@...r.kernel.org,
 linux-kernel@...r.kernel.org, bpf@...r.kernel.org
Subject: Re: [PATCH net-next] selftests: drv-net: Enable BTF

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Wed, 24 Sep 2025 15:25:18 -0700 you wrote:
> Commit fec2e55bdef ("selftests: drv-net: Pull data before parsing headers")
> added __ksym external symbol to xdp_native.bpf.c which now requires
> a kernel with BTF. Enable BTF for driver selftests.
> 
> Before:
> 
>   # TAP version 13
>   # 1..10
>   # # Exception| Traceback (most recent call last):
>   # # Exception|   File "/home/sdf/src/linux/tools/testing/selftests/net/lib/py/ksft.py", line 244, in ksft_run
>   # # Exception|     case(*args)
>   # # Exception|     ~~~~^^^^^^^
>   # # Exception|   File "/home/sdf/src/linux/tools/testing/selftests/drivers/net/./xdp.py", line 231, in test_xdp_native_pass_sb
>   # # Exception|     _test_pass(cfg, bpf_info, 256)
>   # # Exception|     ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
>   # # Exception|   File "/home/sdf/src/linux/tools/testing/selftests/drivers/net/./xdp.py", line 209, in _test_pass
>   # # Exception|     prog_info = _load_xdp_prog(cfg, bpf_info)
>   # # Exception|   File "/home/sdf/src/linux/tools/testing/selftests/drivers/net/./xdp.py", line 114, in _load_xdp_prog
>   # # Exception|     cmd(
>   # # Exception|     ~~~^
>   # # Exception|     f"ip link set dev {cfg.ifname} mtu {bpf_info.mtu} xdpdrv obj {abs_path} sec {bpf_info.xdp_sec}",
>   # # Exception|     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>   # # Exception|     shell=True
>   # # Exception|     ^^^^^^^^^^
>   # # Exception|     )
>   # # Exception|     ^
>   # # Exception|   File "/home/sdf/src/linux/tools/testing/selftests/net/lib/py/utils.py", line 75, in __init__
>   # # Exception|     self.process(terminate=False, fail=fail, timeout=timeout)
>   # # Exception|     ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>   # # Exception|   File "/home/sdf/src/linux/tools/testing/selftests/net/lib/py/utils.py", line 95, in process
>   # # Exception|     raise CmdExitFailure("Command failed: %s\nSTDOUT: %s\nSTDERR: %s" %
>   # # Exception|                          (self.proc.args, stdout, stderr), self)
>   # # Exception| net.lib.py.utils.CmdExitFailure: Command failed: ip link set dev eni30773np1 mtu 1500 xdpdrv obj /home/sdf/src/linux/tools/testing/selftests/net/lib/xdp_native.bpf.o sec xdp
>   # # Exception| STDOUT: b''
>   # # Exception| STDERR: b"libbpf: kernel BTF is missing at '/sys/kernel/btf/vmlinux', was CONFIG_DEBUG_INFO_BTF enabled?\nlibbpf: failed to find '.BTF' ELF section in /lib/modules/6.17.0-rc6-virtme/build/vmlinux\nlibbpf: failed to find valid kernel BTF\nlib
>   bpf: Error loading vmlinux BTF: -3\nlibbpf: failed to load object '/home/sdf/src/linux/tools/testing/selftests/net/lib/xdp_native.bpf.o'\n"
>   # not ok 1 xdp.test_xdp_native_pass_sb
>   ...
> 
> [...]

Here is the summary with links:
  - [net-next] selftests: drv-net: Enable BTF
    https://git.kernel.org/netdev/net-next/c/47f78a67d35e

You are awesome, thank you!
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