Re: [PATCH 5.10 373/575] selftests: bpf: Convert sk_lookup ctx access tests to PROG_TEST_RUN

From: Tianchen Ding
Date: Wed Jul 27 2022 - 23:09:46 EST


On 2022/7/28 11:03, Tianchen Ding wrote:
On 2022/7/27 18:10, Greg KH wrote:
On Mon, Jul 25, 2022 at 10:53:38AM +0800, Tianchen Ding wrote:
Hi Greg.

We found a compile error when building tools/testing/selftests/bpf/ on 5.10.

tools/testing/selftests/bpf/prog_tests/sk_lookup.c:1092:15: error: 'struct bpf_sk_lookup' has no member named 'cookie'
  1092 |  if (CHECK(ctx.cookie == 0, "ctx.cookie", "no socket selected\n"))

It requires 7c32e8f8bc33 ("bpf: Add PROG_TEST_RUN support for sk_lookup programs") from upstream.

Maybe the left patches of this patchset are needed for 5.10 LTS?
https://lore.kernel.org/bpf/20210303101816.36774-1-lmb@xxxxxxxxxxxxxx/

If so, please submit them with the git commit ids so that I can fix this
up.

thanks,

greg k-h

These 2 commits from upstream are necessary for bpf selftests build pass on 5.10.y:
607b9cc92bd7208338d714a22b8082fe83bcb177 bpf: Consolidate shared test timing code
7c32e8f8bc33a5f4b113a630857e46634e3e143b bpf: Add PROG_TEST_RUN support for sk_lookup programs

This commit does not impact building stage, but can avoid a test case failure (by skipping it):
b4f894633fa14d7d46ba7676f950b90a401504bb selftests: bpf: Don't run sk_lookup in verifier tests

Thanks.

Or should I submit complete patches?