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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt Cc: netdev@vger.kernel.org, mptcp@lists.linux.dev, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, Shuah Khan , Ankit Khushwaha Subject: [PATCH] selftests: mptcp: initialize raw_addr to Null Date: Wed, 26 Nov 2025 22:00:46 +0530 Message-ID: <20251126163046.58615-1-ankitkhushwaha.linux@gmail.com> X-Mailer: git-send-email 2.52.0 Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The "void *raw_addr" is left uninitialized when else path is followed raising below warning. mptcp_connect.c:1262:11: warning: variable 'raw_addr' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] so the fix is to assign *raw_addr to NULL to suppress the warning. Signed-off-by: Ankit Khushwaha Reviewed-by: Matthieu Baerts (NGI0) --- compiler used: clang version 21.1.5 (Fedora 21.1.5-1.fc43). compilation cmd used: make -C tools/testing/selftests/net/mptcp CC=3Dclang V=3D1 -j8 this maybe also be false positive. But somehow clang - 21.1.5 triggering this. --- tools/testing/selftests/net/mptcp/mptcp_connect.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.c b/tools/test= ing/selftests/net/mptcp/mptcp_connect.c index 404a77bf366a..cdb81e0d08ad 100644 --- a/tools/testing/selftests/net/mptcp/mptcp_connect.c +++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c @@ -1248,8 +1248,8 @@ void xdisconnect(int fd) { socklen_t addrlen =3D sizeof(struct sockaddr_storage); struct sockaddr_storage addr, empty; + void *raw_addr =3D NULL; int msec_sleep =3D 10; - void *raw_addr; int i, cmdlen; char cmd[128]; -- 2.52.0