[kj] is_power_of_2 in net/pcmcia/pcnet_cs.c

@@ -36,6 +36,7 @@
 #include <linux/string.h>
 #include <linux/timer.h>
 #include <linux/delay.h>
+#include <linux/log2.h>
 #include <linux/ethtool.h>
 #include <linux/netdevice.h>
 #include <../drivers/net/8390.h>

@@ -1486,7 +1487,7 @@ static int setup_shmem_window(struct pcmcia_device *link, int start_pg,
 	window_size = 32 * 1024;
 
     /* Make sure it's a power of two.  */
-    while ((window_size & (window_size - 1)) != 0)
+    while (!is_power_of_2(window_size))
 	window_size += window_size & ~(window_size - 1);
 
     /* Allocate a memory window */