drivers/net: return operator cleanup

Change "return (EXPR);" to "return EXPR;"

return is not a function, parentheses are not required.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c
index 34abcc9..0db28b4 100644
--- a/drivers/net/benet/be_cmds.c
+++ b/drivers/net/benet/be_cmds.c
@@ -98,9 +98,9 @@
 
 static inline bool is_link_state_evt(u32 trailer)
 {
-	return (((trailer >> ASYNC_TRAILER_EVENT_CODE_SHIFT) &
+	return ((trailer >> ASYNC_TRAILER_EVENT_CODE_SHIFT) &
 		ASYNC_TRAILER_EVENT_CODE_MASK) ==
-				ASYNC_EVENT_CODE_LINK_STATE);
+				ASYNC_EVENT_CODE_LINK_STATE;
 }
 
 static struct be_mcc_compl *be_mcc_compl_get(struct be_adapter *adapter)