[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/drivers/block/floppy.c b/drivers/block/floppy.c
index 3f1b382..5231ed7 100644 (file)
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -297,17 +297,17 @@ static int initialising = 1;
 #define DRS (&drive_state[current_drive])
 #define DRWE (&write_errors[current_drive])
 #define FDCS (&fdc_state[fdc])
-#define CLEARF(x) (clear_bit(x##_BIT, &DRS->flags))
-#define SETF(x) (set_bit(x##_BIT, &DRS->flags))
-#define TESTF(x) (test_bit(x##_BIT, &DRS->flags))
+#define CLEARF(x) clear_bit(x##_BIT, &DRS->flags)
+#define SETF(x) set_bit(x##_BIT, &DRS->flags)
+#define TESTF(x) test_bit(x##_BIT, &DRS->flags)
 
 #define UDP (&drive_params[drive])
 #define UDRS (&drive_state[drive])
 #define UDRWE (&write_errors[drive])
 #define UFDCS (&fdc_state[FDC(drive)])
-#define UCLEARF(x) (clear_bit(x##_BIT, &UDRS->flags))
-#define USETF(x) (set_bit(x##_BIT, &UDRS->flags))
-#define UTESTF(x) (test_bit(x##_BIT, &UDRS->flags))
+#define UCLEARF(x) clear_bit(x##_BIT, &UDRS->flags)
+#define USETF(x) set_bit(x##_BIT, &UDRS->flags)
+#define UTESTF(x) test_bit(x##_BIT, &UDRS->flags)
 
 #define DPRINT(format, args...) printk(DEVICE_NAME "%d: " format, current_drive , ## args)
 

diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index de9fc57..3069ecc 100644 (file)
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -150,10 +150,10 @@ struct rpc_call_ops {
 #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 @@ struct rpc_call_ops {
                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 @@ struct rpc_call_ops {
                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.