[tip: core/rcu] smp: Make symbol 'csd_bug_count' static

[tip-bot2 for Wei Yongjun]

The following commit has been merged into the core/rcu branch of tip:

Commit-ID:     2b722160f1a7929f38dfb648c7bbb45f96e65a5b
Gitweb:        https://git.kernel.org/tip/2b722160f1a7929f38dfb648c7bbb45f96e65a5b
Author:        Wei Yongjun <weiyongjun1@xxxxxxxxxx>
AuthorDate:    Mon, 06 Jul 2020 21:49:41 +08:00
Committer:     Paul E. McKenney <paulmck@xxxxxxxxxx>
CommitterDate: Fri, 04 Sep 2020 11:53:12 -07:00

smp: Make symbol 'csd_bug_count' static

The sparse tool complains as follows:

kernel/smp.c:107:10: warning:
 symbol 'csd_bug_count' was not declared. Should it be static?

Because variable is not used outside of smp.c, this commit marks it
static.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
 kernel/smp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/smp.c b/kernel/smp.c
index c5d3188..b25383d 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -106,7 +106,7 @@ static DEFINE_PER_CPU(smp_call_func_t, cur_csd_func);
 static DEFINE_PER_CPU(void *, cur_csd_info);
 
 #define CSD_LOCK_TIMEOUT (5ULL * NSEC_PER_SEC)
-atomic_t csd_bug_count = ATOMIC_INIT(0);
+static atomic_t csd_bug_count = ATOMIC_INIT(0);
 
 /* Record current CSD work for current CPU, NULL to erase. */
 static void csd_lock_record(call_single_data_t *csd)