[PATCH] drivers/mtd: Use ARRAY_SIZE macro

Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove
duplicates of the macro.

Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/mtd/maps/sharpsl-flash.c b/drivers/mtd/maps/sharpsl-flash.c
index 999f4bb..12fe53c 100644
--- a/drivers/mtd/maps/sharpsl-flash.c
+++ b/drivers/mtd/maps/sharpsl-flash.c
@@ -49,8 +49,6 @@
 	}
 };
 
-#define NB_OF(x)  (sizeof(x)/sizeof(x[0]))
-
 int __init init_sharpsl(void)
 {
 	struct mtd_partition *parts;
@@ -92,7 +90,7 @@
 	}
 
 	parts = sharpsl_partitions;
-	nb_parts = NB_OF(sharpsl_partitions);
+	nb_parts = ARRAY_SIZE(sharpsl_partitions);
 
 	printk(KERN_NOTICE "Using %s partision definition\n", part_type);
 	add_mtd_partitions(mymtd, parts, nb_parts);