Re: [Qemu-devel] [PATCH for-4.1 1/4] hw/isa/superio: Rename a variable

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 4/5/19 6:14 AM, Thomas Huth wrote:
> On 05/04/2019 00.12, Philippe Mathieu-Daudé wrote:
>> This patch is purely cosmetic. No functional change.
>> This will ease the next patch where we re-indent an if() statement.
>>
>> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
>> ---
>>  hw/isa/isa-superio.c | 69 ++++++++++++++++++++++----------------------
>>  1 file changed, 34 insertions(+), 35 deletions(-)
>>
>> diff --git a/hw/isa/isa-superio.c b/hw/isa/isa-superio.c
>> index d54463bf035..c6845eaf578 100644
>> --- a/hw/isa/isa-superio.c
>> +++ b/hw/isa/isa-superio.c
>> @@ -22,8 +22,8 @@
>>  
>>  static void isa_superio_realize(DeviceState *dev, Error **errp)
>>  {
>> -    ISASuperIODevice *sio = ISA_SUPERIO(dev);
>> -    ISASuperIOClass *k = ISA_SUPERIO_GET_CLASS(sio);
>> +    ISASuperIODevice *s = ISA_SUPERIO(dev);
>> +    ISASuperIOClass *k = ISA_SUPERIO_GET_CLASS(s);
> 
> Sorry, but I have to say that I normally really don't like single-letter
> variable names. They are much harder to search for, and way less
> self-describing.

Me too ;) But sometimes I find the 80 chars/line limit generate
indentation harder to review. But here I have no excuse :)

> If you get problems with the line length in a later patch, what about
> refactoring the related code into a separate function? So that you'd
> only have something like this in the realize function:
> 
>     for (i = 0, j = 0; i < bus_count; i++, j += MAX_IDE_DEVS) {
>         if (!k->ide.is_enabled || k->ide.is_enabled(s, j)) {
>             isa_superio_init_ide(...);
>         }
>     }

Yes, fair enough. Note you used the shortened variables in your example! :P

Regards,

Phil.