From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Date: Sun, 2 Jul 2017 11:49:40 +0530
Subject: drm/omap: dma-buf: Constify dma_buf_ops structures.
Git-commit: 815ed41b9bd0ecbe9dbd58e594da94c2a35480d1
Patch-mainline: v4.14-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

dma_buf_ops are not supposed to change at runtime. All functions
working with dma_buf_ops provided by <linux/dma-buf.h> work with
const dma_buf_ops. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
   1240	    112	      0	   1352	    548 drivers/gpu/drm/omapdrm/omap_gem_dmabuf.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   1352	      0	      0	   1352	    548 drivers/gpu/drm/omapdrm/omap_gem_dmabuf.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c
+++ b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c
@@ -144,7 +144,7 @@ static int omap_gem_dmabuf_mmap(struct d
 	return omap_gem_mmap_obj(obj, vma);
 }
 
-static struct dma_buf_ops omap_dmabuf_ops = {
+static const struct dma_buf_ops omap_dmabuf_ops = {
 	.map_dma_buf = omap_gem_map_dma_buf,
 	.unmap_dma_buf = omap_gem_unmap_dma_buf,
 	.release = drm_gem_dmabuf_release,