[PATCH] Fix build errors if bitop functions are do {} while macros

If one of clear_bit, change_bit or set_bit is defined as a do { } while (0)
function usage of these functions in parenthesis like

  (foo_bit(23, &var))

while be expaned to something like

  (do { ... } while (0)}).

resulting in a build error.  This patch removes the useless parenthesis.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index de9fc576..3069ecc 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -150,10 +150,10 @@
 #define RPC_TASK_HAS_TIMER	3
 #define RPC_TASK_ACTIVE		4
 
-#define RPC_IS_RUNNING(t)	(test_bit(RPC_TASK_RUNNING, &(t)->tk_runstate))
-#define rpc_set_running(t)	(set_bit(RPC_TASK_RUNNING, &(t)->tk_runstate))
+#define RPC_IS_RUNNING(t)	test_bit(RPC_TASK_RUNNING, &(t)->tk_runstate)
+#define rpc_set_running(t)	set_bit(RPC_TASK_RUNNING, &(t)->tk_runstate)
 #define rpc_test_and_set_running(t) \
-				(test_and_set_bit(RPC_TASK_RUNNING, &(t)->tk_runstate))
+				test_and_set_bit(RPC_TASK_RUNNING, &(t)->tk_runstate)
 #define rpc_clear_running(t)	\
 	do { \
 		smp_mb__before_clear_bit(); \
@@ -161,8 +161,8 @@
 		smp_mb__after_clear_bit(); \
 	} while (0)
 
-#define RPC_IS_QUEUED(t)	(test_bit(RPC_TASK_QUEUED, &(t)->tk_runstate))
-#define rpc_set_queued(t)	(set_bit(RPC_TASK_QUEUED, &(t)->tk_runstate))
+#define RPC_IS_QUEUED(t)	test_bit(RPC_TASK_QUEUED, &(t)->tk_runstate)
+#define rpc_set_queued(t)	set_bit(RPC_TASK_QUEUED, &(t)->tk_runstate)
 #define rpc_clear_queued(t)	\
 	do { \
 		smp_mb__before_clear_bit(); \
@@ -179,7 +179,7 @@
 		smp_mb__after_clear_bit(); \
 	} while (0)
 
-#define RPC_IS_ACTIVATED(t)	(test_bit(RPC_TASK_ACTIVE, &(t)->tk_runstate))
+#define RPC_IS_ACTIVATED(t)	test_bit(RPC_TASK_ACTIVE, &(t)->tk_runstate)
 
 /*
  * Task priorities.