Re: [PATCH bpf-next v2 4/9] selftests: bpf: Update kfunc_param_nullable test for new error message

["Emil Tsalapatis" <emil@etsalapatis.com>]

On Wed Dec 31, 2025 at 12:08 PM EST, Puranjay Mohan wrote:
> With trusted args now being the default, the NULL pointer check runs
> before type-specific validation. Update test3 to expect the new error
> message "Possibly NULL pointer passed to trusted arg0" instead of the
> old dynptr-specific error message.
>
> Signed-off-by: Puranjay Mohan <puranjay@kernel.org>

Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com>

> ---
>  tools/testing/selftests/bpf/progs/test_kfunc_param_nullable.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/testing/selftests/bpf/progs/test_kfunc_param_nullable.c b/tools/testing/selftests/bpf/progs/test_kfunc_param_nullable.c
> index 0ad1bf1ede8d..967081bbcfe1 100644
> --- a/tools/testing/selftests/bpf/progs/test_kfunc_param_nullable.c
> +++ b/tools/testing/selftests/bpf/progs/test_kfunc_param_nullable.c
> @@ -29,7 +29,7 @@ int kfunc_dynptr_nullable_test2(struct __sk_buff *skb)
>  }
>  
>  SEC("tc")
> -__failure __msg("expected pointer to stack or const struct bpf_dynptr")
> +__failure __msg("Possibly NULL pointer passed to trusted arg0")
>  int kfunc_dynptr_nullable_test3(struct __sk_buff *skb)
>  {
>  	struct bpf_dynptr data;