[RFC PATCH] ACPI: PCC: pcc_ctx can be static

[kernel test robot]

drivers/acpi/acpi_pcc.c:34:22: warning: symbol 'pcc_ctx' was not declared. Should it be static?

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: kernel test robot <lkp@xxxxxxxxx>
---
 acpi_pcc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/acpi_pcc.c b/drivers/acpi/acpi_pcc.c
index 64552fdb73470..9df4d740b52a6 100644
--- a/drivers/acpi/acpi_pcc.c
+++ b/drivers/acpi/acpi_pcc.c
@@ -31,7 +31,7 @@ struct pcc_data {
 	struct acpi_pcc_info ctx;
 };
 
-struct acpi_pcc_info pcc_ctx;
+static struct acpi_pcc_info pcc_ctx;
 
 static void pcc_rx_callback(struct mbox_client *cl, void *m)
 {