tee: tee_shm: Constify dma_buf_ops structures.

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
   2026	    112	      0	   2138	    85a	drivers/tee/tee_shm.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   2138	      0	      0	   2138	    85a	drivers/tee/tee_shm.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
(cherry picked from commit 53e3ca5cee24f5fafe4e9ff5fe4b230e1a1b85ed)

diff --git a/drivers/tee/tee_shm.c b/drivers/tee/tee_shm.c
index 8314fd5..c5b561a 100644 (file)
--- a/drivers/tee/tee_shm.c
+++ b/drivers/tee/tee_shm.c
@@ -99,7 +99,7 @@ static int tee_shm_op_mmap(struct dma_buf *dmabuf, struct vm_area_struct *vma)
                               size, vma->vm_page_prot);
 }
 
-static struct dma_buf_ops tee_shm_dma_buf_ops = {
+static const struct dma_buf_ops tee_shm_dma_buf_ops = {
        .map_dma_buf = tee_shm_op_map_dma_buf,
        .unmap_dma_buf = tee_shm_op_unmap_dma_buf,
        .release = tee_shm_op_release,