netdev - Re: [PATCH] selftests/seccomp: Add SKIP for failed unshare()

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Date:   Tue, 29 Mar 2022 09:28:14 -0600
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     davidcomponentone@...il.com, keescook@...omium.org
Cc:     luto@...capital.net, wad@...omium.org, shuah@...nel.org,
        ast@...nel.org, daniel@...earbox.net, andrii@...nel.org,
        kafai@...com, songliubraving@...com, yhs@...com,
        john.fastabend@...il.com, kpsingh@...nel.org,
        linux-kselftest@...r.kernel.org, netdev@...r.kernel.org,
        bpf@...r.kernel.org, linux-kernel@...r.kernel.org,
        Yang Guang <yang.guang5@....com.cn>,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH] selftests/seccomp: Add SKIP for failed unshare()

On 3/29/22 12:03 AM, davidcomponentone@...il.com wrote:
> From: Yang Guang <yang.guang5@....com.cn>
> 
> Running the seccomp tests under the kernel with "defconfig"
> shouldn't fail. Because the CONFIG_USER_NS is not support

Nit - supported

> in "defconfig". So skip this test case is better.

Nit: "skipping this case instead if failing it."
> 
> Signed-off-by: Yang Guang <yang.guang5@....com.cn>
> Signed-off-by: David Yang <davidcomponentone@...il.com>
> ---
>   tools/testing/selftests/seccomp/seccomp_bpf.c | 5 ++++-
>   1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c
> index 313bb0cbfb1e..e9a61cb2eb88 100644
> --- a/tools/testing/selftests/seccomp/seccomp_bpf.c
> +++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
> @@ -3742,7 +3742,10 @@ TEST(user_notification_fault_recv)
>   	struct seccomp_notif req = {};
>   	struct seccomp_notif_resp resp = {};
>   
> -	ASSERT_EQ(unshare(CLONE_NEWUSER), 0);
> +	ASSERT_EQ(unshare(CLONE_NEWUSER), 0) {
> +		if (errno == EINVAL)
> +			SKIP(return, "kernel missing CLONE_NEWUSER support");> +	}
>   
>   	listener = user_notif_syscall(__NR_getppid,
>   				      SECCOMP_FILTER_FLAG_NEW_LISTENER);
> 
Looks good to me. Looks like this patch is for Linux 5.18 repo.
With the requested changes to commit log

Reviewed-by: Shuah Khan <skhan@...uxfoundation.org>

thanks,
-- Shuah