pcmcia net: use roundup_pow_of_two() macro instead of grotesque loop
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/pcmcia/pcnet_cs.c b/drivers/net/pcmcia/pcnet_cs.c
index 51bbd58..9ba56aa 100644
--- a/drivers/net/pcmcia/pcnet_cs.c
+++ b/drivers/net/pcmcia/pcnet_cs.c
@@ -38,6 +38,7 @@
#include <linux/delay.h>
#include <linux/ethtool.h>
#include <linux/netdevice.h>
+#include <linux/log2.h>
#include "../8390.h"
#include <pcmcia/cs_types.h>
@@ -1484,8 +1485,7 @@
window_size = 32 * 1024;
/* Make sure it's a power of two. */
- while ((window_size & (window_size - 1)) != 0)
- window_size += window_size & ~(window_size - 1);
+ window_size = roundup_pow_of_two(window_size);
/* Allocate a memory window */
req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE;