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

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Message-Id: <0a6ae44cf7d0fb54380809ae0e52234dbd3f367a.1497934979.git.arvind.yadav.cs@gmail.com>
Date:   Tue, 20 Jun 2017 10:35:34 +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_hqvdp: 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
  15845	    640	      0	  16485	   4065	drivers/gpu/drm/sti/sti_hqvdp.o

File size after constify hqvdp_of_match:
   text	   data	    bss	    dec	    hex	filename
  16229	    224	      0	  16453	   4045	drivers/gpu/drm/sti/sti_hqvdp.o

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

diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
index 267d816..075802d 100644
--- a/drivers/gpu/drm/sti/sti_hqvdp.c
+++ b/drivers/gpu/drm/sti/sti_hqvdp.c
@@ -1396,7 +1396,7 @@ static int sti_hqvdp_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id hqvdp_of_match[] = {
+static const struct of_device_id hqvdp_of_match[] = {
 	{ .compatible = "st,stih407-hqvdp", },
 	{ /* end node */ }
 };
-- 
1.9.1