linux-kernel - [PATCH] drm: armada: Constify drm_prop_enum

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Date:   Sat,  1 Jul 2017 16:24:42 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     linux@...linux.org.uk, airlied@...ux.ie, daniel.vetter@...el.com
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm: armada: Constify drm_prop_enum_list structures.

drm_prop_enum_lists are not supposed to change at runtime. All functions
working with drm_prop_enum_list provided by <drm/drm_property.h> work
with
const drm_prop_enum_list. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
   3594	    176	      0	   3770	    eba drivers/gpu/drm/armada/armada_overlay.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   3722	     48	      0	   3770	    eba drivers/gpu/drm/armada/armada_overlay.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/gpu/drm/armada/armada_overlay.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/armada/armada_overlay.c b/drivers/gpu/drm/armada/armada_overlay.c
index 424e465..9b25697 100644
--- a/drivers/gpu/drm/armada/armada_overlay.c
+++ b/drivers/gpu/drm/armada/armada_overlay.c
@@ -388,7 +388,7 @@ static const uint32_t armada_ovl_formats[] = {
 	DRM_FORMAT_BGR565,
 };

-static struct drm_prop_enum_list armada_drm_colorkey_enum_list[] = {
+static const struct drm_prop_enum_list armada_drm_colorkey_enum_list[] = {
 	{ CKMODE_DISABLE, "disabled" },
 	{ CKMODE_Y,       "Y component" },
 	{ CKMODE_U,       "U component" },
-- 
2.7.4