Re: [PATCH trivial] include/linux/memblock.h: Clean up code for several trivial details

[Chen Gang]

On 5/29/16 23:08, Joe Perches wrote:
> On Sun, 2016-05-29 at 22:36 +0800, chengang@xxxxxxxxxxxxxxxx wrote:
>>
>> Use "!!" to let the boolean function return boolean value directly.
> []
>> diff --git a/include/linux/memblock.h b/include/linux/memblock.h
> []
>> @@ -191,12 +190,12 @@ static inline bool movable_node_is_enabled(void)
>>  
>>  static inline bool memblock_is_mirror(struct memblock_region *m)
>>  {
>> -	return m->flags & MEMBLOCK_MIRROR;
>> +	return !!(m->flags & MEMBLOCK_MIRROR);
> 
> These !! uses are't necessary.
> The compiler makes the bool return 0 or 1.
> 

No, they are not necessary. But for me, it will be more clearer, since
in our kernel (at least in include/linux/), almost all Boolean functions
use Boolean value or expression for return (and "!!" are often used).

Please help check, and welcome any additional ideas, suggestions, and
completions.

Thanks.
-- 
Chen Gang (éå)

Managing Natural Environments is the Duty of Human Beings.