linux-kernel - [PATCH] drm: armada: make of_device

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Message-Id: <ff9a9a908cf347775ab62cfadfde986de72dcf13.1497935382.git.arvind.yadav.cs@gmail.com>
Date:   Tue, 20 Jun 2017 10:44:33 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     linux@...linux.org.uk, airlied@...ux.ie
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm: armada: make of_device_ids const.

of_device_ids are not supposed to change at runtime. All functions
working with of_device_ids provided by <linux/of.h> work with const
of_device_ids. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
   8836	    744	      0	   9580	   256c	drivers/gpu/drm/armada/armada_crtc.o

File size after constify armada_lcd_of_match:
   text	   data	    bss	    dec	    hex	filename
   9220	    328	      0	   9548	   254c	drivers/gpu/drm/armada/armada_crtc.o

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

diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c
index 4fe19fd..94b76bd 100644
--- a/drivers/gpu/drm/armada/armada_crtc.c
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -1364,7 +1364,7 @@ static int armada_lcd_remove(struct platform_device *pdev)
 	return 0;
 }

-static struct of_device_id armada_lcd_of_match[] = {
+static const struct of_device_id armada_lcd_of_match[] = {
 	{
 		.compatible	= "marvell,dove-lcd",
 		.data		= &armada510_ops,
-- 
1.9.1