media: vb2 dma-contig: Constify dma_buf_ops structures
authorArvind Yadav <arvind.yadav.cs@gmail.com>
Sat, 1 Jul 2017 11:27:13 +0000 (07:27 -0400)
committerMauro Carvalho Chehab <mchehab@s-opensource.com>
Wed, 19 Jul 2017 18:58:38 +0000 (14:58 -0400)
commit6e03db38631f5607e81856418ffe779c29e53c56
treee7bd5341dbbad9e6dcb4e93d1644d9bf3dc3e3b4
parent568bdaddc324c0068f26bbe3d4dc57acb8e3286b
media: vb2 dma-contig: 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
   6035     272       0    6307    18a3 drivers/media/v4l2-core/videobuf2-dma-contig.o

File size After adding 'const':
   text    data     bss     dec     hex filename
   6155     160       0    6315    18ab drivers/media/v4l2-core/videobuf2-dma-contig.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
drivers/media/v4l2-core/videobuf2-dma-contig.c