Fix checkpatch code style warnings:

  WARNING: macros should not use a trailing semicolon
  #180: FILE: net/core/pktgen.c:180:
  +#define func_enter() pr_debug("entering %s\n", __func__);

  WARNING: macros should not use a trailing semicolon
  #234: FILE: net/core/pktgen.c:234:
  +#define   if_lock(t)           mutex_lock(&(t->if_lock));

  CHECK: Unnecessary parentheses around t->if_lock
  #235: FILE: net/core/pktgen.c:235:
  +#define   if_unlock(t)           mutex_unlock(&(t->if_lock));

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
---
 net/core/pktgen.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 72063f3f8c61..a1268be1edc6 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -177,7 +177,7 @@
 #define MAX_IMIX_ENTRIES 20
 #define IMIX_PRECISION 100 /* Precision of IMIX distribution */
 
-#define func_enter() pr_debug("entering %s\n", __func__);
+#define func_enter() pr_debug("entering %s\n", __func__)
 
 #define PKT_FLAGS							\
 	pf(IPV6)		/* Interface in IPV6 Mode */		\
@@ -231,8 +231,8 @@ static char *pkt_flag_names[] = {
 #define M_QUEUE_XMIT      2	/* Inject packet into qdisc */
 
 /* If lock -- protects updating of if_list */
-#define   if_lock(t)           mutex_lock(&(t->if_lock));
-#define   if_unlock(t)           mutex_unlock(&(t->if_lock));
+#define   if_lock(t)      mutex_lock(&(t->if_lock))
+#define   if_unlock(t)    mutex_unlock(&(t->if_lock))
 
 /* Used to help with determining the pkts on receive */
 #define PKTGEN_MAGIC 0xbe9be955
-- 
2.49.0