From: Wei Yongjun <[email protected]>
The sparse tool complains as follows:
kernel/bpf/bpf_task_storage.c:23:1: warning:
symbol '__pcpu_scope_bpf_task_storage_busy' was not declared. Should it be
static?
This symbol is not used outside of bpf_task_storage.c, so this
commit marks it static.
Fixes: bc235cdb423a ("bpf: Prevent deadlock from recursive
bpf_task_storage_[get|delete]")
Reported-by: Hulk Robot <[email protected]>
Signed-off-by: Wei Yongjun <[email protected]>
---
kernel/bpf/bpf_task_storage.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/bpf/bpf_task_storage.c b/kernel/bpf/bpf_task_storage.c
index fd3c74ef608e..3ce75758d394 100644
--- a/kernel/bpf/bpf_task_storage.c
+++ b/kernel/bpf/bpf_task_storage.c
@@ -20,7 +20,7 @@
DEFINE_BPF_STORAGE_CACHE(task_cache);
-DEFINE_PER_CPU(int, bpf_task_storage_busy);
+static DEFINE_PER_CPU(int, bpf_task_storage_busy);
static void bpf_task_storage_lock(void)
{
