r600g: Only compare active vertex elements

Signed-off-by: Tilman Sauerbeck <[email protected]>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 3e42309bde0..37884d0f5b2 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -274,7 +274,8 @@ static int r600_shader_update(struct pipe_context *ctx, struct r600_pipe_shader
 		return 0;
 	/* doing a full memcmp fell over the refcount */
 	if ((rshader->vertex_elements.count == rctx->vertex_elements->count) &&
-	    (!memcmp(&rshader->vertex_elements.elements, &rctx->vertex_elements->elements, 32 * sizeof(struct pipe_vertex_element)))) {
+	    (!memcmp(&rshader->vertex_elements.elements, &rctx->vertex_elements->elements,
+                     rctx->vertex_elements->count * sizeof(struct pipe_vertex_element)))) {
 		return 0;
 	}
 	rshader->vertex_elements = *rctx->vertex_elements;