Re: [PATCH v2 2/3] selftests: Fix errno checking in syscall_user_dispatch test

[Gregory Price]

On Mon, Feb 24, 2025 at 09:45:26AM +0100, Dmitry Vyukov wrote:
>  	/* len != 0 */
> -	prctl(PR_SET_SYSCALL_USER_DISPATCH, op, 0x0, 0xff, 0);
> +	EXPECT_EQ(-1, prctl(PR_SET_SYSCALL_USER_DISPATCH, op, 0x0, 0xff, 0));
>  	EXPECT_EQ(EINVAL, errno);

This patch should probably just be pulled ahead of everything else,
since you change the behavior of the syscall, and now you're updating
the test - but it will fail (since this no longer produces EINVAL).

This patch should probably just be entirely separate, maybe even in
stable?

~Gregory