[PATCH] mtd: vmu-flash: Use hweight_long

[Akinobu Mita]

Use hweight_long instead of Brian Kernighan's/Peter Wegner's method

Signed-off-by: Akinobu Mita <akinobu.mita at gmail.com>
Cc: David Woodhouse <dwmw2 at infradead.org>
Cc: Artem Bityutskiy <Artem.Bityutskiy at nokia.com>
Cc: linux-mtd at lists.infradead.org
Cc: Paul Mundt <lethal at linux-sh.org>
Cc: Adrian McMenamin <adrian at mcmen.demon.co.uk>
---
 drivers/mtd/maps/vmu-flash.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/mtd/maps/vmu-flash.c b/drivers/mtd/maps/vmu-flash.c
index 1f73297..1008462 100644
--- a/drivers/mtd/maps/vmu-flash.c
+++ b/drivers/mtd/maps/vmu-flash.c
@@ -612,10 +612,9 @@ static int __devinit vmu_connect(struct maple_device *mdev)
 
 	test_flash_data = be32_to_cpu(mdev->devinfo.function);
 	/* Need to count how many bits are set - to find out which
-	 * function_data element has details of the memory card:
-	 * using Brian Kernighan's/Peter Wegner's method */
-	for (c = 0; test_flash_data; c++)
-		test_flash_data &= test_flash_data - 1;
+	 * function_data element has details of the memory card
+	 */
+	c = hweight_long(test_flash_data);
 
 	basic_flash_data = be32_to_cpu(mdev->devinfo.function_data[c - 1]);
 
-- 
1.6.5.1