Re: [PATCH v2] selftests/net: fix uninitialized variables

From: Mat Martineau
Date: Mon May 06 2024 - 21:27:20 EST


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@xxxxxxxxx>
Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>

Hi John -

MPTCP change looks good to me:

Acked-by: Mat Martineau <martineau@xxxxxxxxxx>