Hi Tom,
2017-09-13 19:16 GMT+09:00 Masahiro Yamada <yamada.masah...@socionext.com>:
> These macros are useful to avoid link error on 32-bit systems.
>
> Signed-off-by: Masahiro Yamada <yamada.masah...@socionext.com>
> ---
>
> include/linux/kernel.h | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/include/linux/kernel.h b/include/linux/kernel.h
> index 0b61671..87d2d95 100644
> --- a/include/linux/kernel.h
> +++ b/include/linux/kernel.h
> @@ -57,6 +57,11 @@
> #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
> #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
>
> +#define DIV_ROUND_DOWN_ULL(ll, d) \
> + ({ unsigned long long _tmp = (ll); do_div(_tmp, d); _tmp; })
> +
> +#define DIV_ROUND_UP_ULL(ll, d) DIV_ROUND_DOWN_ULL((ll) + (d)
> - 1, (d))
> +
> #if BITS_PER_LONG == 32
> # define DIV_ROUND_UP_SECTOR_T(ll,d) DIV_ROUND_UP_ULL(ll, d)
> #else
> --
> 2.7.4
Could you pick this up, if you missed it.
I am just copying these two macros from Linux.
I do not think it is controversial.
--
Best Regards
Masahiro Yamada
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