mtd: afs: break out v1 footer magic to a define

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=9498440fff21649cabe529f1d9d4e3bc668fc125
Commit:     9498440fff21649cabe529f1d9d4e3bc668fc125
Parent:     8cf980185d2bf672a5c1d03935f1f165836bb4b0
Author:     Linus Walleij <linus.walleij at linaro.org>
AuthorDate: Thu Oct 15 15:08:46 2015 +0200
Committer:  Brian Norris <computersforpeace at gmail.com>
CommitDate: Tue Nov 10 17:56:06 2015 -0800

    mtd: afs: break out v1 footer magic to a define
    
    Break out the magic number to a #defined constant.
    
    Cc: Ryan Harkin <ryan.harkin at linaro.org>
    Cc: Liviu Dudau <liviu.dudau at arm.com>
    Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
    Signed-off-by: Brian Norris <computersforpeace at gmail.com>
---
 drivers/mtd/afs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/afs.c b/drivers/mtd/afs.c
index 9af0052..d09280a 100644
--- a/drivers/mtd/afs.c
+++ b/drivers/mtd/afs.c
@@ -34,6 +34,8 @@
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
 
+#define AFSV1_FOOTER_MAGIC 0xA0FFFF9F
+
 struct footer_v1 {
 	u32 image_info_base;	/* Address of first word of ImageFooter  */
 	u32 image_start;	/* Start of area reserved by this footer */
@@ -90,7 +92,7 @@ afs_read_footer_v1(struct mtd_info *mtd, u_int *img_start, u_int *iis_start,
 	/*
 	 * Does it contain the magic number?
 	 */
-	if (fs.signature != 0xa0ffff9f)
+	if (fs.signature != AFSV1_FOOTER_MAGIC)
 		ret = 0;
 
 	/*