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Typedef SMP call function pointer 

Typedef the pointer to the function to be called by smp_call_function() and
friends:

	typedef void (*smp_call_func_t)(void *info);

as it is used in a fair number of places.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-arch@vger.kernel.org
hifive-unleashed-5.1
David Howells 2010-10-27 17:28:36 +01:00
parent 3b950de9c9
commit 3a5f65df5a
2 changed files with 14 additions and 13 deletions
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19
include/linux/smp.h
View File

@ -13,9 +13,10 @@
extern void cpu_idle(void);
typedef void (*smp_call_func_t)(void *info);
struct call_single_data {
struct list_head list;
void (*func) (void *info);
smp_call_func_t func;
void *info;
u16 flags;
u16 priv;
@ -24,8 +25,8 @@ struct call_single_data {
/* total number of cpus in this system (may exceed NR_CPUS) */
extern unsigned int total_cpus;
int smp_call_function_single(int cpuid, void (*func) (void *info), void *info,
int wait);
int smp_call_function_single(int cpuid, smp_call_func_t func, void *info,
int wait);
#ifdef CONFIG_SMP
@ -69,15 +70,15 @@ extern void smp_cpus_done(unsigned int max_cpus);
/*
* Call a function on all other processors
*/
int smp_call_function(void(*func)(void *info), void *info, int wait);
int smp_call_function(smp_call_func_t func, void *info, int wait);
void smp_call_function_many(const struct cpumask *mask,
void (*func)(void *info), void *info, bool wait);
smp_call_func_t func, void *info, bool wait);
void __smp_call_function_single(int cpuid, struct call_single_data *data,
int wait);
int smp_call_function_any(const struct cpumask *mask,
void (*func)(void *info), void *info, int wait);
smp_call_func_t func, void *info, int wait);
/*
* Generic and arch helpers
@ -94,7 +95,7 @@ void ipi_call_unlock_irq(void);
/*
* Call a function on all processors
*/
int on_each_cpu(void (*func) (void *info), void *info, int wait);
int on_each_cpu(smp_call_func_t func, void *info, int wait);
#define MSG_ALL_BUT_SELF 0x8000 /* Assume <32768 CPU's */
#define MSG_ALL 0x8001
@ -122,7 +123,7 @@ static inline void smp_send_stop(void) { }
* These macros fold the SMP functionality into a single CPU system
*/
#define raw_smp_processor_id() 0
static inline int up_smp_call_function(void (*func)(void *), void *info)
static inline int up_smp_call_function(smp_call_func_t func, void *info)
{
return 0;
}
@ -143,7 +144,7 @@ static inline void smp_send_reschedule(int cpu) { }
static inline void init_call_single_data(void) { }
static inline int
smp_call_function_any(const struct cpumask *mask, void (*func)(void *info),
smp_call_function_any(const struct cpumask *mask, smp_call_func_t func,
void *info, int wait)
{
return smp_call_function_single(0, func, info, wait);

8
kernel/smp.c
View File

@ -267,7 +267,7 @@ static DEFINE_PER_CPU_SHARED_ALIGNED(struct call_single_data, csd_data);
*
* Returns 0 on success, else a negative status code.
*/
int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
int smp_call_function_single(int cpu, smp_call_func_t func, void *info,
int wait)
{
struct call_single_data d = {
@ -336,7 +336,7 @@ EXPORT_SYMBOL(smp_call_function_single);
* 3) any other online cpu in @mask
*/
int smp_call_function_any(const struct cpumask *mask,
void (*func)(void *info), void *info, int wait)
smp_call_func_t func, void *info, int wait)
{
unsigned int cpu;
const struct cpumask *nodemask;
@ -416,7 +416,7 @@ void __smp_call_function_single(int cpu, struct call_single_data *data,
* must be disabled when calling this function.
*/
void smp_call_function_many(const struct cpumask *mask,
void (*func)(void *), void *info, bool wait)
smp_call_func_t func, void *info, bool wait)
{
struct call_function_data *data;
unsigned long flags;
@ -500,7 +500,7 @@ EXPORT_SYMBOL(smp_call_function_many);
* You must not call this function with disabled interrupts or from a
* hardware interrupt handler or from a bottom half handler.
*/
int smp_call_function(void (*func)(void *), void *info, int wait)
int smp_call_function(smp_call_func_t func, void *info, int wait)
{
preempt_disable();
smp_call_function_many(cpu_online_mask, func, info, wait);