linux-kernel - [PATCH net-next v2] selftests: tls: fix warning of uninitialized variable

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Message-ID: <20251205163242.14615-1-ankitkhushwaha.linux@gmail.com>
Date: Fri,  5 Dec 2025 22:02:42 +0530
From: Ankit Khushwaha <ankitkhushwaha.linux@...il.com>
To: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Sabrina Dubroca <sd@...asysnail.net>
Cc: Shuah Khan <shuah@...nel.org>,
	netdev@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Ankit Khushwaha <ankitkhushwaha.linux@...il.com>
Subject: [PATCH net-next v2] selftests: tls: fix warning of uninitialized variable

In 'poll_partial_rec_async' a uninitialized char variable 'token' with
is used for write/read instruction to synchronize between threads
via a pipe.

tls.c:2833:26: warning: variable 'token' is uninitialized
      		   when passed as a const pointer argument

Initialize 'token' to '\0' to silence compiler warning.

Signed-off-by: Ankit Khushwaha <ankitkhushwaha.linux@...il.com>
---
compiler used: clang version 21.1.5 (Fedora 21.1.5-1.fc43).

changelog:
v2:
- update patch name and msg

v1: https://lore.kernel.org/all/20251129063726.31210-1-ankitkhushwaha.linux@gmail.com/
---
 tools/testing/selftests/net/tls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index a3ef4b57eb5f..a4d16a460fbe 100644
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -2786,10 +2786,10 @@ TEST_F(tls_err, epoll_partial_rec)
 TEST_F(tls_err, poll_partial_rec_async)
 {
 	struct pollfd pfd = { };
+	char token = '\0';
 	ssize_t rec_len;
 	char rec[256];
 	char buf[128];
-	char token;
 	int p[2];
 	int ret;

--
2.52.0