Re: [PATCH] selftests/bpf: fix const qualifier in fexit_bpf2bpf test

[Jiayuan Chen]

On 4/9/26 5:11 PM, Woojin Ji wrote:
> prog_name is an array of const char * strings, so strstr() returns a
> pointer into const data.
>
> Store the result in a const char * to avoid discarding the const
> qualifier.
>
> With GCC 15 this triggers -Werror=discarded-qualifiers and breaks
> the build of tools/testing/selftests/bpf.
>
> Signed-off-by: Woojin Ji <random6.xyz@xxxxxxxxx>
> ---
>   tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c
> index f29fc789c14b..d8225da4c1af 100644
> --- a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c
> +++ b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c
> @@ -111,7 +111,7 @@ static void test_fexit_bpf2bpf_common(const char *obj_file,
>   		struct bpf_link_info link_info;
>   		struct bpf_program *pos;
>   		const char *pos_sec_name;
> -		char *tgt_name;
> +		const char *tgt_name;
>   		__s32 btf_id;
>   
>   		tgt_name = strstr(prog_name[i], "/");

Already exist.

https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c?id=ca0f39a369c5f927c3d004e63a5a778b08a9df94