drm: Use a flexible array member for blob property data

The blob property data is always allocated immediately after the object
header. No need for the extra indirection when accessing it, just use
a flexible array member.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index f5b098e..d2d9dc5 100644 (file)
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -2943,7 +2943,6 @@ static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev
                return NULL;
        }
 
-       blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
        blob->length = length;
 
        memcpy(blob->data, data, length);

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 00f4007..53cb49a 100644 (file)
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -257,7 +257,7 @@ struct drm_property_blob {
        struct drm_mode_object base;
        struct list_head head;
        unsigned int length;
-       void *data;
+       unsigned char data[];
 };
 
 struct drm_property_enum {