selftests/net: initialize char variable to null

char variable in 'so_txtime.c' & 'txtimestamp.c' were left uninitilized
when switch default case taken. which raises following warning.

	txtimestamp.c:240:2: warning: variable 'tsname' is used uninitialized
	whenever switch default is taken [-Wsometimes-uninitialized]

	so_txtime.c:210:3: warning: variable 'reason' is used uninitialized
	whenever switch default is taken [-Wsometimes-uninitialized]

initializing these variables to NULL to fix this.

Signed-off-by: Ankit Khushwaha <ankitkhushwaha.linux@gmail.com>
Link: https://patch.msgid.link/20251125165302.20079-1-ankitkhushwaha.linux@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/testing/selftests/net/so_txtime.c b/tools/testing/selftests/net/so_txtime.c
index 8457b7ccbc09f3c29c09b9144174dbda81e06ddb..b76df1efc2efc07f3dcf7391f864800b4bc00226 100644 (file)
--- a/tools/testing/selftests/net/so_txtime.c
+++ b/tools/testing/selftests/net/so_txtime.c
@@ -174,7 +174,7 @@ static int do_recv_errqueue_timeout(int fdt)
        msg.msg_controllen = sizeof(control);
 
        while (1) {
-               const char *reason;
+               const char *reason = NULL;
 
                ret = recvmsg(fdt, &msg, MSG_ERRQUEUE);
                if (ret == -1 && errno == EAGAIN)

diff --git a/tools/testing/selftests/net/txtimestamp.c b/tools/testing/selftests/net/txtimestamp.c
index dae91eb97d6992fdfebe1879aa0e7224ac5a772f..bcc14688661dc765f83ac247ce3ae6b0f92178dd 100644 (file)
--- a/tools/testing/selftests/net/txtimestamp.c
+++ b/tools/testing/selftests/net/txtimestamp.c
@@ -217,7 +217,7 @@ static void print_timestamp_usr(void)
 static void print_timestamp(struct scm_timestamping *tss, int tstype,
                            int tskey, int payload_len)
 {
-       const char *tsname;
+       const char *tsname = NULL;
 
        validate_key(tskey, tstype);