From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Tue, 13 Mar 2012 10:35:49 +0000 (+0200)
Subject: drm: Use a flexible array member for blob property data
X-Git-Tag: v3.4-rc1~141^2~47
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d63f5e6bf6f2a1573ea39c9937cdf5ab0b3a4b77;p=profile%2Fivi%2Fkernel-x86-ivi.git

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
--- 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
--- 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 {