From: Ralf Baechle 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 Cc: Trond Myklebust Cc: Neil Brown Signed-off-by: Andrew Morton --- drivers/block/floppy.c | 12 ++++++------ include/linux/sunrpc/sched.h | 12 ++++++------ 2 files changed, 12 insertions(+), 12 deletions(-) diff -puN drivers/block/floppy.c~fix-build-errors-if-bitop-functions-are-do-while-macros drivers/block/floppy.c --- a/drivers/block/floppy.c~fix-build-errors-if-bitop-functions-are-do-while-macros +++ a/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 -puN include/linux/sunrpc/sched.h~fix-build-errors-if-bitop-functions-are-do-while-macros include/linux/sunrpc/sched.h --- a/include/linux/sunrpc/sched.h~fix-build-errors-if-bitop-functions-are-do-while-macros +++ a/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. _