[PATCH -next] scsi: megaraid_sas: Make poll_aen_lock static

[YueHaibing]

Fix sparse warning:

drivers/scsi/megaraid/megaraid_sas_base.c:187:12:
 warning: symbol 'poll_aen_lock' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 drivers/scsi/megaraid/megaraid_sas_base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index c40fbea..a4bc814 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -199,7 +199,7 @@ static bool support_nvme_encapsulation;
 static bool support_pci_lane_margining;
 
 /* define lock for aen poll */
-spinlock_t poll_aen_lock;
+static spinlock_t poll_aen_lock;
 
 extern struct dentry *megasas_debugfs_root;
 extern void megasas_init_debugfs(void);
-- 
2.7.4