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

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Message-Id: <d2344c4dc40238cfe48fa6d917767df0f053150a.1498902844.git.arvind.yadav.cs@gmail.com>
Date:   Sat,  1 Jul 2017 15:30:15 +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
   9629	    744	      0	  10373	   2885 drivers/gpu/drm/armada/armada_crtc.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   9757	    616	      0	  10373	   2885 drivers/gpu/drm/armada/armada_crtc.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/gpu/drm/armada/armada_crtc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c
index 4fe19fd..08debec 100644
--- a/drivers/gpu/drm/armada/armada_crtc.c
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -1150,13 +1150,13 @@ int armada_drm_plane_init(struct armada_plane *plane)
 	return 0;
 }

-static struct drm_prop_enum_list armada_drm_csc_yuv_enum_list[] = {
+static const struct drm_prop_enum_list armada_drm_csc_yuv_enum_list[] = {
 	{ CSC_AUTO,        "Auto" },
 	{ CSC_YUV_CCIR601, "CCIR601" },
 	{ CSC_YUV_CCIR709, "CCIR709" },
 };

-static struct drm_prop_enum_list armada_drm_csc_rgb_enum_list[] = {
+static const struct drm_prop_enum_list armada_drm_csc_rgb_enum_list[] = {
 	{ CSC_AUTO,         "Auto" },
 	{ CSC_RGB_COMPUTER, "Computer system" },
 	{ CSC_RGB_STUDIO,   "Studio" },
-- 
2.7.4