Re: [PATCH 01/26] usb: gadget: fsl: remove usage of list iterator past the loop body

[Jakob Koschel <jakobkoschel@gmail.com>]

> On 6. Mar 2022, at 19:39, Linus Torvalds <torvalds@linux-foundation.org> wrote:
> 
> On Sun, Mar 6, 2022 at 9:51 AM Jakob Koschel <jakobkoschel@gmail.com> wrote:
>> 
>>        /* make sure it's actually queued on this endpoint */
>> -       list_for_each_entry(req, &ep->queue, queue) {
>> -               if (&req->req == _req)
>> +       list_for_each_entry(tmp, &ep->queue, queue) {
>> +               if (&tmp->req == _req) {
>> +                       req = tmp;
>>                        break;
>> +               }
>>        }
> 
> Honestly, I think many (most?) of these would be a lot cleaner as
> 
>        list_for_each_entry(tmp, &ep->queue, queue) {
>                if (&tmp->req != _req)
>                        continue;
>                req = tmp;
>                break;
>        }

Alright, then I'll go ahead and adjust them. I tried keeping the code
as similar as possible because in other cases it might be less cleaner
inverting the condition.

> 
> and in fact maybe that 'tmp' would be better named 'iter' or similar
> (maybe 'pos', which is what the list.h macros themselves use for the
> iterator naming), just from a naming standpoint.

I agree, also here I simply kept it to what we concluded in the other
thread. I also think using 'iter' would make more sense.
> 
> Because it's not really some temporary variable, it has a real use.
> 
>           Linus

Jakob