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Subject[tip: sched/core] stop_machine: Make stop_cpus() static
The following commit has been merged into the sched/core branch of tip:

Commit-ID: 35f4cd96f5551dc1b2641159e7bb7bf91de6600f
Gitweb: https://git.kernel.org/tip/35f4cd96f5551dc1b2641159e7bb7bf91de6600f
Author: Yangtao Li <tiny.windzz@gmail.com>
AuthorDate: Sat, 28 Dec 2019 16:19:12
Committer: Peter Zijlstra <peterz@infradead.org>
CommitterDate: Fri, 17 Jan 2020 10:19:21 +01:00

stop_machine: Make stop_cpus() static

The function stop_cpus() is only used internally by the
stop_machine for stop multiple cpus.

Make it static.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20191228161912.24082-1-tiny.windzz@gmail.com
---
include/linux/stop_machine.h | 9 ---------
kernel/stop_machine.c | 2 +-
2 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/include/linux/stop_machine.h b/include/linux/stop_machine.h
index 648298f..76d8b09 100644
--- a/include/linux/stop_machine.h
+++ b/include/linux/stop_machine.h
@@ -32,7 +32,6 @@ int stop_one_cpu(unsigned int cpu, cpu_stop_fn_t fn, void *arg);
int stop_two_cpus(unsigned int cpu1, unsigned int cpu2, cpu_stop_fn_t fn, void *arg);
bool stop_one_cpu_nowait(unsigned int cpu, cpu_stop_fn_t fn, void *arg,
struct cpu_stop_work *work_buf);
-int stop_cpus(const struct cpumask *cpumask, cpu_stop_fn_t fn, void *arg);
void stop_machine_park(int cpu);
void stop_machine_unpark(int cpu);
void stop_machine_yield(const struct cpumask *cpumask);
@@ -81,14 +80,6 @@ static inline bool stop_one_cpu_nowait(unsigned int cpu,
return false;
}

-static inline int stop_cpus(const struct cpumask *cpumask,
- cpu_stop_fn_t fn, void *arg)
-{
- if (cpumask_test_cpu(raw_smp_processor_id(), cpumask))
- return stop_one_cpu(raw_smp_processor_id(), fn, arg);
- return -ENOENT;
-}
-
#endif /* CONFIG_SMP */

/*
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index 5d68ec4..865bb02 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -442,7 +442,7 @@ static int __stop_cpus(const struct cpumask *cpumask,
* @cpumask were offline; otherwise, 0 if all executions of @fn
* returned 0, any non zero return value if any returned non zero.
*/
-int stop_cpus(const struct cpumask *cpumask, cpu_stop_fn_t fn, void *arg)
+static int stop_cpus(const struct cpumask *cpumask, cpu_stop_fn_t fn, void *arg)
{
int ret;

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