gallium: make constant_buffer const

Signed-off-by: Rob Clark <robclark@freedesktop.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c
index 1063cce..01ccd46 100644
--- a/src/gallium/drivers/r300/r300_state.c
+++ b/src/gallium/drivers/r300/r300_state.c
@@ -2003,7 +2003,7 @@ static void r300_delete_vs_state(struct pipe_context* pipe, void* shader)
 
 static void r300_set_constant_buffer(struct pipe_context *pipe,
                                      uint shader, uint index,
-                                     struct pipe_constant_buffer *cb)
+                                     const struct pipe_constant_buffer *cb)
 {
     struct r300_context* r300 = r300_context(pipe);
     struct r300_constant_buffer *cbuf;