[965] Initialize region surface key structure padding.

Fixes valgrind warnings, and potential performance loss from cache misses.

diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index 86566df..c5c944f 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -257,6 +257,8 @@ brw_update_region_surface(struct brw_context *brw, struct intel_region *region,
       GLboolean tiled, color_blend;
    } key;
 
+   memset(&key, 0, sizeof(key));
+
    if (region != NULL) {
       region_bo = region->buffer;