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Commit 3a5f65df authored by David Howells's avatar David Howells
Browse files

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: default avatarDavid Howells <dhowells@redhat.com>
cc: linux-arch@vger.kernel.org
parent 3b950de9

include/linux/smp.h

+10 −9
Original line number Diff line number Diff line
@@ -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;
@@ -24,7 +25,7 @@ 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 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);

kernel/smp.c

+4 −4
Original line number Diff line number Diff line
@@ -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);