[PATCH net] selftests/txtimestamp: Fix an equals vs assign bug

[Dan Carpenter]

This should be == instead of =.

Fixes: b52354aa068e ("selftests: expand txtimestamp with ipv6 dgram + raw and 
pf_packet")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
---
 tools/testing/selftests/networking/timestamping/txtimestamp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/networking/timestamping/txtimestamp.c 
b/tools/testing/selftests/networking/timestamping/txtimestamp.c
index 2e563d17cf0c..d1bbafb16f47 100644
--- a/tools/testing/selftests/networking/timestamping/txtimestamp.c
+++ b/tools/testing/selftests/networking/timestamping/txtimestamp.c
@@ -240,7 +240,7 @@ static void __recv_errmsg_cmsg(struct msghdr *msg, int 
payload_len)
                            cm->cmsg_type == IP_RECVERR) ||
                           (cm->cmsg_level == SOL_IPV6 &&
                            cm->cmsg_type == IPV6_RECVERR) ||
-                          (cm->cmsg_level = SOL_PACKET &&
+                          (cm->cmsg_level == SOL_PACKET &&
                            cm->cmsg_type == PACKET_TX_TIMESTAMP)) {
                        serr = (void *) CMSG_DATA(cm);
                        if (serr->ee_errno != ENOMSG ||
-- 
2.17.1