Index: uspace/drv/fb/kfb/port.c
===================================================================
--- uspace/drv/fb/kfb/port.c	(revision a582dffe11ea61eb703e09e2c57e388020251e89)
+++ uspace/drv/fb/kfb/port.c	(revision 82edef2f5532d5ca29a1c05cbe6b80ccf84adbd2)
@@ -163,7 +163,7 @@
 		/* Faster damage routine ignoring offsets. */
 		for (sysarg_t y = y0; y < height + y0; ++y) {
+			pixel_t *pixel = pixelmap_pixel_at(map, x0, y);
 			for (sysarg_t x = x0; x < width + x0; ++x) {
-				kfb.pixel2visual(kfb.addr + FB_POS(x, y),
-				    *pixelmap_pixel_at(map, x, y));
+				kfb.pixel2visual(kfb.addr + FB_POS(x, y), *pixel++);
 			}
 		}