[patch 03/24] drivers/block/viodasd.c: Use FIELD_SIZEOF

[akpm at linux-foundation.org]

From: Julia Lawall <julia at diku.dk>

Robert P.J. Day proposed to use the macro FIELD_SIZEOF in replace of code
that matches its definition.

The modification was made using the following semantic patch
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@haskernel@
@@

#include <linux/kernel.h>

@depends on haskernel@
type t;
identifier f;
@@

- (sizeof(((t*)0)->f))
+ FIELD_SIZEOF(t, f)

@depends on haskernel@
type t;
identifier f;
@@

- sizeof(((t*)0)->f)
+ FIELD_SIZEOF(t, f)
// </smpl>

Signed-off-by: Julia Lawall <julia at diku.dk>
Cc: Jens Axboe <jens.axboe at oracle.com>
Cc: Benjamin Herrenschmidt <benh at kernel.crashing.org>
Cc: Paul Mackerras <paulus at samba.org>
Acked-by: Stephen Rothwell <sfr at canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
---

 drivers/block/viodasd.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN drivers/block/viodasd.c~drivers-block-viodasdc-use-field_sizeof drivers/block/viodasd.c
--- a/drivers/block/viodasd.c~drivers-block-viodasdc-use-field_sizeof
+++ a/drivers/block/viodasd.c
@@ -69,7 +69,7 @@ MODULE_LICENSE("GPL");
 enum {
 	PARTITION_SHIFT = 3,
 	MAX_DISKNO = HVMAXARCHITECTEDVIRTUALDISKS,
-	MAX_DISK_NAME = sizeof(((struct gendisk *)0)->disk_name)
+	MAX_DISK_NAME = FIELD_SIZEOF(struct gendisk, disk_name)
 };
 
 static DEFINE_SPINLOCK(viodasd_spinlock);
_