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selftests: mptcp: Initialize variables to quiet gcc 12 warnings

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commit fd37c2ecb2 upstream.

In a few MPTCP selftest tools, gcc 12 complains that the 'sock' variable
might be used uninitialized. This is a false positive because the only
code path that could lead to uninitialized access is where getaddrinfo()
fails, but the local xgetaddrinfo() wrapper exits if such a failure
occurs.

Initialize the 'sock' variable anyway to allow the tools to build with
gcc 12.

Fixes: 048d19d444 ("mptcp: add basic kselftest for mptcp")
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mat Martineau 2022-06-27 18:02:43 -07:00 committed by Greg Kroah-Hartman
parent 80620e74e1
commit a6bb7cf801
3 changed files with 3 additions and 3 deletions
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2
tools/testing/selftests/net/mptcp/mptcp_connect.c
View file

@ -265,7 +265,7 @@ static void sock_test_tcpulp(int sock, int proto, unsigned int line)
static int sock_listen_mptcp(const char * const listenaddr,
const char * const port)
{
int sock;
int sock = -1;
struct addrinfo hints = {
.ai_protocol = IPPROTO_TCP,
.ai_socktype = SOCK_STREAM,

2
tools/testing/selftests/net/mptcp/mptcp_inq.c
View file

@ -88,7 +88,7 @@ static void xgetaddrinfo(const char *node, const char *service,
static int sock_listen_mptcp(const char * const listenaddr,
const char * const port)
{
int sock;
int sock = -1;
struct addrinfo hints = {
.ai_protocol = IPPROTO_TCP,
.ai_socktype = SOCK_STREAM,

2
tools/testing/selftests/net/mptcp/mptcp_sockopt.c
View file

@ -136,7 +136,7 @@ static void xgetaddrinfo(const char *node, const char *service,
static int sock_listen_mptcp(const char * const listenaddr,
const char * const port)
{
int sock;
int sock = -1;
struct addrinfo hints = {
.ai_protocol = IPPROTO_TCP,
.ai_socktype = SOCK_STREAM,