[PATCH f2fs] f2fs: pids_lock can be static

[kbuild test robot]

fs/f2fs/trace.c:19:12: sparse: symbol 'pids_lock' was not declared. Should it be static?

Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---
 trace.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/trace.c b/fs/f2fs/trace.c
index 92fa38a..517dfe5 100644
--- a/fs/f2fs/trace.c
+++ b/fs/f2fs/trace.c
@@ -16,7 +16,7 @@
 #include "trace.h"
 
 RADIX_TREE(pids, GFP_ATOMIC);
-spinlock_t pids_lock;
+static spinlock_t pids_lock;
 struct last_io_info last_io;
 
 static inline void __print_last_io(void)
--
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