Re: [PATCH] arch: x86: include: asm: need 'unsigned' type cast foratomic_clear_mask()

From: Chen Gang
Date: Sat Jun 08 2013 - 04:26:15 EST

On 06/08/2013 04:02 PM, Chen Gang wrote:
> On 06/08/2013 03:31 PM, H. Peter Anvin wrote:
>> > On 06/07/2013 11:30 PM, Chen Gang wrote:
>>>> >> >
>>>> >> > atomic_set_mask() has already have 'unsigned' type case, and
>>>> >> > atomic_clear_mask() is the pair of atomic_set_mask().
>>>> >> >
>>>> >> > So it also need 'unsigned' type case.
>>>> >> >
>> > Pray tell, in what situation does this matter? The only reason I can
>> > think of is if "mask" is actually a long...
> Excuse me, in fact, I don't know whether it will cause issue. Since
> atomic_set_mask() has done, I think atomic_clear_mask() also need it.
> If atomic_clear_mask() do need it, the atomic_set_mask() do not need it
> either, they are the pairs --> they will face the same situation.

Oh, my typo, it should be "If atomic_clear_mask() do not need it, the
atomic_set_mask() do not need it either, the are face same situation".

Chen Gang

Asianux Corporation
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