Re: [dm-devel] [PATCH v8 01/16] hashtable: introduce a small and naive hashtable

[Sasha Levin <levinsasha928 gmail com>]

On Tue, Oct 30, 2012 at 5:42 PM, Tejun Heo <tj kernel org> wrote:
> Hello,
>
> Just some nitpicks.
>
> On Tue, Oct 30, 2012 at 02:45:57PM -0400, Sasha Levin wrote:
>> +/* Use hash_32 when possible to allow for fast 32bit hashing in 64bit kernels. */
>> +#define hash_min(val, bits)                                                  \
>> +({                                                                           \
>> +     sizeof(val) <= 4 ?                                                      \
>> +     hash_32(val, bits) :                                                    \
>> +     hash_long(val, bits);                                                   \
>> +})
>
> Doesn't the above fit in 80 column.  Why is it broken into multiple
> lines?  Also, you probably want () around at least @val.  In general,
> it's a good idea to add () around any macro argument to avoid nasty
> surprises.

It was broken to multiple lines because it looks nicer that way (IMO).

If we wrap it with () it's going to go over 80, so it's going to stay
broken down either way :)


Thanks,
Sasha

> Looks good to me otherwise.
>
>  Reviewed-by: Tejun Heo <tj kernel org>
>
> Thanks.
>
> --
> tejun