Re: [PATCH 2/5] gpio: Cygnus: add GPIO driver

Ray Jui
2014-12-08T01:34:23Z

On 12/5/2014 8:24 PM, Joe Perches wrote:
> On Fri, 2014-12-05 at 19:41 -0800, Ray Jui wrote:
>> On 12/5/2014 6:34 PM, Joe Perches wrote:
>>> On Fri, 2014-12-05 at 18:14 -0800, Ray Jui wrote:
>>>> On 12/5/2014 5:28 PM, Joe Perches wrote:
>>>>> On Fri, 2014-12-05 at 16:40 -0800, Ray Jui wrote:
>>>>>> + for_each_set_bit(bit, &val, 32) {
> []
>> Actually, by reviewing the code more deeply, I'm not sure why using
>> for_each_set_bit here is 'endian unsafe'.
>
> It's not. The 32 confused me as it was long
> and sizeof(long) isn't necessarily 32.
>
> Maybe the 32 should be a #define
>
>
>
Okay, to improve readability, I will change 32 to NGPIOS_PER_BANK.