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Subject[tip: smp/core] smp: Use smp_cond_func_t as type for the conditional function
The following commit has been merged into the smp/core branch of tip:

Commit-ID: 5671d814dbd204b4ecc705045b5f1a647bff6f3b
Gitweb: https://git.kernel.org/tip/5671d814dbd204b4ecc705045b5f1a647bff6f3b
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
AuthorDate: Fri, 17 Jan 2020 10:01:35 +01:00
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Fri, 24 Jan 2020 20:40:08 +01:00

smp: Use smp_cond_func_t as type for the conditional function

Use a typdef for the conditional function instead defining it each time in
the function prototype.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20200117090137.1205765-2-bigeasy@linutronix.de

---
include/linux/smp.h | 12 ++++++------
kernel/smp.c | 11 +++++------
kernel/up.c | 11 +++++------
3 files changed, 16 insertions(+), 18 deletions(-)

diff --git a/include/linux/smp.h b/include/linux/smp.h
index 6fc856c..4734416 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -15,6 +15,7 @@
#include <linux/llist.h>

typedef void (*smp_call_func_t)(void *info);
+typedef bool (*smp_cond_func_t)(int cpu, void *info);
struct __call_single_data {
struct llist_node llist;
smp_call_func_t func;
@@ -49,13 +50,12 @@ void on_each_cpu_mask(const struct cpumask *mask, smp_call_func_t func,
* cond_func returns a positive value. This may include the local
* processor.
*/
-void on_each_cpu_cond(bool (*cond_func)(int cpu, void *info),
- smp_call_func_t func, void *info, bool wait,
- gfp_t gfp_flags);
+void on_each_cpu_cond(smp_cond_func_t cond_func, smp_call_func_t func,
+ void *info, bool wait, gfp_t gfp_flags);

-void on_each_cpu_cond_mask(bool (*cond_func)(int cpu, void *info),
- smp_call_func_t func, void *info, bool wait,
- gfp_t gfp_flags, const struct cpumask *mask);
+void on_each_cpu_cond_mask(smp_cond_func_t cond_func, smp_call_func_t func,
+ void *info, bool wait, gfp_t gfp_flags,
+ const struct cpumask *mask);

int smp_call_function_single_async(int cpu, call_single_data_t *csd);

diff --git a/kernel/smp.c b/kernel/smp.c
index 7dbcb40..c64044d 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -680,9 +680,9 @@ EXPORT_SYMBOL(on_each_cpu_mask);
* You must not call this function with disabled interrupts or
* from a hardware interrupt handler or from a bottom half handler.
*/
-void on_each_cpu_cond_mask(bool (*cond_func)(int cpu, void *info),
- smp_call_func_t func, void *info, bool wait,
- gfp_t gfp_flags, const struct cpumask *mask)
+void on_each_cpu_cond_mask(smp_cond_func_t cond_func, smp_call_func_t func,
+ void *info, bool wait, gfp_t gfp_flags,
+ const struct cpumask *mask)
{
cpumask_var_t cpus;
int cpu, ret;
@@ -714,9 +714,8 @@ void on_each_cpu_cond_mask(bool (*cond_func)(int cpu, void *info),
}
EXPORT_SYMBOL(on_each_cpu_cond_mask);

-void on_each_cpu_cond(bool (*cond_func)(int cpu, void *info),
- smp_call_func_t func, void *info, bool wait,
- gfp_t gfp_flags)
+void on_each_cpu_cond(smp_cond_func_t cond_func, smp_call_func_t func,
+ void *info, bool wait, gfp_t gfp_flags)
{
on_each_cpu_cond_mask(cond_func, func, info, wait, gfp_flags,
cpu_online_mask);
diff --git a/kernel/up.c b/kernel/up.c
index 862b460..5c0d4f2 100644
--- a/kernel/up.c
+++ b/kernel/up.c
@@ -68,9 +68,9 @@ EXPORT_SYMBOL(on_each_cpu_mask);
* Preemption is disabled here to make sure the cond_func is called under the
* same condtions in UP and SMP.
*/
-void on_each_cpu_cond_mask(bool (*cond_func)(int cpu, void *info),
- smp_call_func_t func, void *info, bool wait,
- gfp_t gfp_flags, const struct cpumask *mask)
+void on_each_cpu_cond_mask(smp_cond_func_t cond_func, smp_call_func_t func,
+ void *info, bool wait, gfp_t gfp_flags,
+ const struct cpumask *mask)
{
unsigned long flags;

@@ -84,9 +84,8 @@ void on_each_cpu_cond_mask(bool (*cond_func)(int cpu, void *info),
}
EXPORT_SYMBOL(on_each_cpu_cond_mask);

-void on_each_cpu_cond(bool (*cond_func)(int cpu, void *info),
- smp_call_func_t func, void *info, bool wait,
- gfp_t gfp_flags)
+void on_each_cpu_cond(smp_cond_func_t cond_func, smp_call_func_t func,
+ void *info, bool wait, gfp_t gfp_flags)
{
on_each_cpu_cond_mask(cond_func, func, info, wait, gfp_flags, NULL);
}
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