We get 4 warnings when building kernel with W=1: drivers/gpu/drm/radeon/si.c:7850:5: warning: no previous prototype for 'si_vce_send_vcepll_ctlreq' [-Wmissing-prototypes] drivers/gpu/drm/radeon/radeon_dp_mst.c:226:21: warning: no previous prototype for 'radeon_mst_best_encoder' [-Wmissing-prototypes] drivers/gpu/drm/radeon/radeon_dp_mst.c:344:26: warning: no previous prototype for 'radeon_mst_find_connector' [-Wmissing-prototypes] drivers/gpu/drm/radeon/radeon_dp_mst.c:600:6: warning: no previous prototype for 'radeon_dp_mst_encoder_destroy' [-Wmissing-prototypes]
In fact, these functions are only used in the file in which they are declared and don't need a declaration, but can be made static. So this patch marks these functions with 'static'.
Signed-off-by: Baoyou Xie baoyou.xie@linaro.org --- drivers/gpu/drm/radeon/radeon_dp_mst.c | 8 +++++--- drivers/gpu/drm/radeon/si.c | 2 +- 2 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c b/drivers/gpu/drm/radeon/radeon_dp_mst.c index de504ea..6d1237d 100644 --- a/drivers/gpu/drm/radeon/radeon_dp_mst.c +++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c @@ -223,7 +223,8 @@ radeon_dp_mst_mode_valid(struct drm_connector *connector, return MODE_OK; }
-struct drm_encoder *radeon_mst_best_encoder(struct drm_connector *connector) +static struct +drm_encoder *radeon_mst_best_encoder(struct drm_connector *connector) { struct radeon_connector *radeon_connector = to_radeon_connector(connector);
@@ -341,7 +342,8 @@ const struct drm_dp_mst_topology_cbs mst_cbs = { .hotplug = radeon_dp_mst_hotplug, };
-struct radeon_connector *radeon_mst_find_connector(struct drm_encoder *encoder) +static struct +radeon_connector *radeon_mst_find_connector(struct drm_encoder *encoder) { struct drm_device *dev = encoder->dev; struct drm_connector *connector; @@ -597,7 +599,7 @@ static const struct drm_encoder_helper_funcs radeon_mst_helper_funcs = { .commit = radeon_mst_encoder_commit, };
-void radeon_dp_mst_encoder_destroy(struct drm_encoder *encoder) +static void radeon_dp_mst_encoder_destroy(struct drm_encoder *encoder) { drm_encoder_cleanup(encoder); kfree(encoder); diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index e5ceeb4..f73e441 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -7847,7 +7847,7 @@ static void si_program_aspm(struct radeon_device *rdev) } }
-int si_vce_send_vcepll_ctlreq(struct radeon_device *rdev) +static int si_vce_send_vcepll_ctlreq(struct radeon_device *rdev) { unsigned i;