[PATCH] gpu: amd/pm: mark symbols static where possible for smu11

[Jeff Pang <jeff.pang.chn@gmail.com>]

I get one warning when building kernel with -Werror=missing-prototypes :

drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/vangogh_ppt.c:1600:5:
error: no previous prototype for ‘vangogh_set_apu_thermal_limit’
[-Werror=missing-prototypes]
int vangogh_set_apu_thermal_limit(struct smu_context *smu, uint32_t limit)

In fact, this function don't need a declaration due to it's only used
in the file which they are.
So this patch marks the function with 'static'.

Signed-off-by: Jeff Pang <jeff.pang.chn@gmail.com>
---
 drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c
index 016d5621e0b3..24046af60933 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c
@@ -1597,7 +1597,7 @@ static int vangogh_get_apu_thermal_limit(struct smu_context *smu, uint32_t *limi
 					      0, limit);
 }
 
-int vangogh_set_apu_thermal_limit(struct smu_context *smu, uint32_t limit)
+static int vangogh_set_apu_thermal_limit(struct smu_context *smu, uint32_t limit)
 {
 	return smu_cmn_send_smc_msg_with_param(smu,
 					      SMU_MSG_SetReducedThermalLimit,
-- 
2.34.1