Re: [PATCH 1/3] bitops: Fix big endian compilation

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On 5.11.18 г. 21:06 ч., Rosen Penev wrote:
> Replaced bswap with _ variants. While it's a glibc extension, all of the
> popular libc implementations (glibc, uClibc, musl, BIONIC) seem to support
> it.
> 
> Added static inline to two functions to match little endian variants. This
> fixes a linking error experienced when compiling.

On what platform did you experience the linking error?

> 
> Signed-off-by: Rosen Penev <rosenp@xxxxxxxxx>
> ---
>  kernel-lib/bitops.h | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/kernel-lib/bitops.h b/kernel-lib/bitops.h
> index b1fd6f5..2c51a26 100644
> --- a/kernel-lib/bitops.h
> +++ b/kernel-lib/bitops.h
> @@ -178,9 +178,9 @@ static inline unsigned long find_next_zero_bit(const unsigned long *addr,
>  static inline unsigned long ext2_swab(const unsigned long y)
>  {
>  #if BITS_PER_LONG == 64
> -	return (unsigned long) bswap64((u64) y);
> +	return (unsigned long) bswap_64((u64) y);
>  #elif BITS_PER_LONG == 32
> -	return (unsigned long) bswap32((u32) y);
> +	return (unsigned long) bswap_32((u32) y);
>  #else
>  #error BITS_PER_LONG not defined
>  #endif
> @@ -218,14 +218,14 @@ static inline unsigned long _find_next_bit_le(const unsigned long *addr1,
>  	return min(start + __ffs(ext2_swab(tmp)), nbits);
>  }
>  
> -unsigned long find_next_zero_bit_le(const void *addr, unsigned long size,
> +static inline unsigned long find_next_zero_bit_le(const void *addr, unsigned long size,
>  		unsigned long offset)
>  {
>  	return _find_next_bit_le(addr, NULL, size, offset, ~0UL);
>  }
>  
>  
> -unsigned long find_next_bit_le(const void *addr, unsigned long size,
> +static inline unsigned long find_next_bit_le(const void *addr, unsigned long size,
>  		unsigned long offset)
>  {
>  	return _find_next_bit_le(addr, NULL, size, offset, 0UL);
> 



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