linux-kernel - [PATCH] drm: sti: sti_dvo: make of_device

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Message-Id: <d5ac3cb4c43338419308d658b9bcb59b7540471e.1497868332.git.arvind.yadav.cs@gmail.com>
Date:   Tue, 20 Jun 2017 10:12:11 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     benjamin.gaignard@...aro.org, vincent.abriou@...com,
        airlied@...ux.ie
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm: sti: sti_dvo: 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
   4222	    664	      0	   4886	   1316	drivers/gpu/drm/sti/sti_dvo.o

File size after constify dvo_of_match:
   text	   data	    bss	    dec	    hex	filename
   4638	    248	      0	   4886	   1316	drivers/gpu/drm/sti/sti_dvo.o

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

diff --git a/drivers/gpu/drm/sti/sti_dvo.c b/drivers/gpu/drm/sti/sti_dvo.c
index bb23318..f06c06e 100644
--- a/drivers/gpu/drm/sti/sti_dvo.c
+++ b/drivers/gpu/drm/sti/sti_dvo.c
@@ -583,7 +583,7 @@ static int sti_dvo_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id dvo_of_match[] = {
+static const struct of_device_id dvo_of_match[] = {
 	{ .compatible = "st,stih407-dvo", },
 	{ /* end node */ }
 };
-- 
1.9.1