linux-kernel - [PATCH v2] drm: tilcdc: tilcdc_panel: make of_device

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Message-Id: <a76740652614e8ace9137d455402773fdce8792a.1498628175.git.arvind.yadav.cs@gmail.com>
Date:   Wed, 28 Jun 2017 11:08:43 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     jsarha@...com, tomi.valkeinen@...com, airlied@...ux.ie
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] drm: tilcdc: tilcdc_panel: 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
   1531	    592	      0	   2123	    84b	drivers/gpu/drm/tilcdc/tilcdc_panel.o

File size after constify:
   text	   data	    bss	    dec	    hex	filename
   1915	    176	      0	   2091	    82b	drivers/gpu/drm/tilcdc/tilcdc_panel.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
Changes in v1:
              Subject was not correct.

 drivers/gpu/drm/tilcdc/tilcdc_panel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_panel.c b/drivers/gpu/drm/tilcdc/tilcdc_panel.c
index 28c3e2f..2abe7c4 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_panel.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_panel.c
@@ -419,7 +419,7 @@ static int panel_remove(struct platform_device *pdev)
 	return 0;
 }

-static struct of_device_id panel_of_match[] = {
+static const struct of_device_id panel_of_match[] = {
 		{ .compatible = "ti,tilcdc,panel", },
 		{ },
 };
-- 
1.9.1