[PATCH v2] selftests/net: fix uninitialized variables

[Mat Martineau]

On Mon, 6 May 2024, John Hubbard wrote:

> When building with clang, via:
>
>    make LLVM=1 -C tools/testing/selftest
>
> ...clang warns about three variables that are not initialized in all
> cases:
>
> 1) The opt_ipproto_off variable is used uninitialized if "testname" is
> not "ip". Willem de Bruijn pointed out that this is an actual bug, and
> suggested the fix that I'm using here (thanks!).
>
> 2) The addr_len is used uninitialized, but only in the assert case,
>   which bails out, so this is harmless.
>
> 3) The family variable in add_listener() is only used uninitialized in
>   the error case (neither IPv4 nor IPv6 is specified), so it's also
>   harmless.
>
> Fix by initializing each variable.
>
> Cc: Willem de Bruijn <willemdebruijn.kernel at gmail.com>
> Signed-off-by: John Hubbard <jhubbard at nvidia.com>

Hi John -

MPTCP change looks good to me:

Acked-by: Mat Martineau <martineau at kernel.org>