linux-kernel - [PATCH] dma: fsl_raid: make of_device

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Message-Id: <6bf709a1d5851e00646669736f048b94bec70473.1498565181.git.arvind.yadav.cs@gmail.com>
Date:   Tue, 27 Jun 2017 17:38:27 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     dan.j.williams@...el.com, vinod.koul@...el.com
Cc:     dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] dma: fsl_raid: 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
   3981	    608	      0	   4589	   11ed	drivers/dma/fsl_raid.o

File size after constify:
   text	   data	    bss	    dec	    hex	filename
   4381	    192	      0	   4573	   11dd	drivers/dma/fsl_raid.o

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

diff --git a/drivers/dma/fsl_raid.c b/drivers/dma/fsl_raid.c
index 90d29f9..493dc6c 100644
--- a/drivers/dma/fsl_raid.c
+++ b/drivers/dma/fsl_raid.c
@@ -877,7 +877,7 @@ static int fsl_re_remove(struct platform_device *ofdev)
 	return 0;
 }

-static struct of_device_id fsl_re_ids[] = {
+static const struct of_device_id fsl_re_ids[] = {
 	{ .compatible = "fsl,raideng-v1.0", },
 	{}
 };
-- 
1.9.1