[PATCH] drm/exynos: constify exynos_drm_crtc_ops structures

[Bhumika Goyal]

Declare exynos_drm_crtc_ops structures as const as they are only passed
as an argument to the function exynos_drm_crtc_create. This argument is
of type const struct exynos_drm_crtc_ops *, so exynos_drm_crtc_ops
structures having this property can be declared const.
Done using Coccinelle:

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct exynos_drm_crtc_ops i at p={...};

@ok@
position p;
identifier r.i;
@@
exynos_drm_crtc_create(...,&i at p,...)

@bad@
position p!={r.p,ok.p};
identifier r.i;
@@
i at p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
+const
struct exynos_drm_crtc_ops i;

File size before:
   text    data     bss     dec     hex filename
   5008     280       0    5288    14a8 exynos/exynos5433_drm_decon.o

File size after:
   text    data     bss     dec     hex filename
   5120     176       0    5296    14b0 exynos/exynos5433_drm_decon.o

Signed-off-by: Bhumika Goyal <bhumirks at gmail.com>
---
 drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c 
b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
index 6ca1f31..12b9bf0 100644
--- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
+++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
@@ -470,7 +470,7 @@ static void decon_clear_channels(struct exynos_drm_crtc 
*crtc)
                clk_disable_unprepare(ctx->clks[i]);
 }

-static struct exynos_drm_crtc_ops decon_crtc_ops = {
+static const struct exynos_drm_crtc_ops decon_crtc_ops = {
        .enable                 = decon_enable,
        .disable                = decon_disable,
        .enable_vblank          = decon_enable_vblank,
-- 
1.9.1