selftests/bpf: Check freeing sk->sk_local_storage with sk_local_storage->smap is NULL

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This patch tweats the socket_bind bpf prog to test the
local_storage->smap == NULL case in the bpf_local_storage_free()
code path. The idea is to create the local_storage with
the sk_storage_map's selem first. Then add the sk_storage_map2's selem
and then delete the earlier sk_storeage_map's selem.

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20230308065936.1550103-17-martin.lau@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Martin KaFai Lau 2023-03-07 22:59:35 -08:00 • committed by Alexei Starovoitov

parent 57ef77152b

commit 1f443d0f2b

1 changed files with 20 additions and 9 deletions

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tools/testing/selftests/bpf/progs/local_storage.c

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