diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/mm/pgtable_32.c | 5 | ||||
| -rw-r--r-- | arch/ppc/mm/pgtable.c | 5 | ||||
| -rw-r--r-- | arch/ppc/syslib/ppc85xx_rio.c | 2 |
3 files changed, 2 insertions, 10 deletions
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c index 1891dbeeb8e9..bd02272bcb0f 100644 --- a/arch/powerpc/mm/pgtable_32.c +++ b/arch/powerpc/mm/pgtable_32.c @@ -294,11 +294,8 @@ void __init mapin_ram(void) } } -/* is x a power of 2? */ -#define is_power_of_2(x) ((x) != 0 && (((x) & ((x) - 1)) == 0)) - /* is x a power of 4? */ -#define is_power_of_4(x) ((x) != 0 && (((x) & (x-1)) == 0) && (ffs(x) & 1)) +#define is_power_of_4(x) is_power_of_2(x) && (ffs(x) & 1)) /* * Set up a mapping for a block of I/O. diff --git a/arch/ppc/mm/pgtable.c b/arch/ppc/mm/pgtable.c index 354a9408f024..82b06a1ef95d 100644 --- a/arch/ppc/mm/pgtable.c +++ b/arch/ppc/mm/pgtable.c @@ -313,11 +313,8 @@ void __init mapin_ram(void) } } -/* is x a power of 2? */ -#define is_power_of_2(x) ((x) != 0 && (((x) & ((x) - 1)) == 0)) - /* is x a power of 4? */ -#define is_power_of_4(x) ((x) != 0 && (((x) & (x-1)) == 0) && (ffs(x) & 1)) +#define is_power_of_4(x) is_power_of_2(x) && (ffs(x) & 1)) /* * Set up a mapping for a block of I/O. 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; |