On Wednesday 20 April 2011, Akinobu Mita wrote:
> index 946a21b..bd2253e 100644
> --- a/include/asm-generic/bitops/le.h
> +++ b/include/asm-generic/bitops/le.h
> @@ -30,6 +30,8 @@ static inline unsigned long find_first_zero_bit_le(const void *addr,
>
> #define BITOP_LE_SWIZZLE ((BITS_PER_LONG-1) & ~0x7)
>
> +#ifdef CONFIG_GENERIC_FIND_BIT_LE
> +
> extern unsigned long find_next_zero_bit_le(const void *addr,
> unsigned long size, unsigned long offset);
> extern unsigned long find_next_bit_le(const void *addr,
> @@ -38,6 +40,8 @@ extern unsigned long find_next_bit_le(const void *addr,
> #define find_first_zero_bit_le(addr, size) \
> find_next_zero_bit_le((addr), (size), 0)
>
> +#endif /* CONFIG_GENERIC_FIND_BIT_LE */
> +
> #else
> #error "Please fix <asm/byteorder.h>"
> #endif
The style that we normally use in asm-generic is to test the macro itself
for existence, so in asm-generic, do:
#ifndef find_next_zero_bit_le
extern unsigned long find_next_zero_bit_le(const void *addr,
unsigned long size, unsigned long offset);
#endif
and in the architectures, write
static inline unsigned long find_next_zero_bit_le(const void *addr,
unsigned long size, unsigned long offset)
#define find_next_zero_bit_le find_next_zero_bit_le
I guess we can do the #ifdef separately for each of the three macros,
or choose one of them to use as a key.
Arnd
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