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[POWERPC] Add "is_power_of_2" checking to log2.h.

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Add the inline function "is_power_of_2()" to log2.h, where the value
zero is *not* considered to be a power of two.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Robert P. J. Day
2007-01-30 06:06:00 -05:00
committed by Paul Mackerras
parent 7df2457db8
commit 63c2f782e8
5 changed files with 13 additions and 12 deletions
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2
drivers/net/gianfar_ethtool.c
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@@ -42,8 +42,6 @@
#include "gianfar.h"
#define is_power_of_2(x) ((x) != 0 && (((x) & ((x) - 1)) == 0))
extern void gfar_start(struct net_device *dev);
extern int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit);