summaryrefslogtreecommitdiffstats
path: root/arch/ppc/syslib
diff options
context:
space:
mode:
authorRobert P. J. Day <rpjday@mindspring.com>2007-01-30 12:06:00 +0100
committerPaul Mackerras <paulus@samba.org>2007-02-07 04:03:19 +0100
commit63c2f782e8f6aafbc11b14b2cb291b3dc9fc217d (patch)
treecbcd1f138a886529ec62a21c5dd4b2c87581058d /arch/ppc/syslib
parent[POWERPC] MPIC: support more than 256 sources (diff)
downloadlinux-63c2f782e8f6aafbc11b14b2cb291b3dc9fc217d.tar.xz
linux-63c2f782e8f6aafbc11b14b2cb291b3dc9fc217d.zip
[POWERPC] Add "is_power_of_2" checking to log2.h.
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>
Diffstat (limited to 'arch/ppc/syslib')
-rw-r--r--arch/ppc/syslib/ppc85xx_rio.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/ppc/syslib/ppc85xx_rio.c b/arch/ppc/syslib/ppc85xx_rio.c
index 05b0e9415085..2b097800cdd9 100644
--- a/arch/ppc/syslib/ppc85xx_rio.c
+++ b/arch/ppc/syslib/ppc85xx_rio.c
@@ -59,8 +59,6 @@
#define DBELL_TID(x) (*(u8 *)(x + DOORBELL_TID_OFFSET))
#define DBELL_INF(x) (*(u16 *)(x + DOORBELL_INFO_OFFSET))
-#define is_power_of_2(x) (((x) & ((x) - 1)) == 0)
-
struct rio_atmu_regs {
u32 rowtar;
u32 pad1;