Re: [PATCH] random: Create new rol32/ror32 bitops

[Geert Uytterhoeven]

On Tue, 8 Mar 2005, Linux Kernel Mailing List wrote:
> --- a/include/linux/bitops.h	2005-03-08 12:05:59 -08:00
> +++ b/include/linux/bitops.h	2005-03-08 12:05:59 -08:00
> @@ -134,4 +134,26 @@
>  	return sizeof(w) == 4 ? generic_hweight32(w) : generic_hweight64(w);
>  }
>  
> +/*
> + * rol32 - rotate a 32-bit value left
> + *
> + * @word: value to rotate
> + * @shift: bits to roll
> + */
> +static inline __u32 rol32(__u32 word, int shift)
                                         ^^^
> +{
> +	return (word << shift) | (word >> (32 - shift));
> +}
> +
> +/*
> + * ror32 - rotate a 32-bit value right
> + *
> + * @word: value to rotate
> + * @shift: bits to roll
> + */
> +static inline __u32 ror32(__u32 word, int shift)
                                         ^^^
> +{
> +	return (word >> shift) | (word << (32 - shift));
> +}
> +
>  #endif

`unsigned int', while we're at it?

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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