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Re: [PATCH 3/4] aspeed/i3c: Rename variable shadowing a local


From: Andrew Jeffery
Subject: Re: [PATCH 3/4] aspeed/i3c: Rename variable shadowing a local
Date: Mon, 25 Sep 2023 15:59:26 +0930
User-agent: Cyrus-JMAP/3.9.0-alpha0-761-gece9e40c48-fm-20230913.001-gece9e40c


On Sat, 23 Sep 2023, at 03:58, Philippe Mathieu-Daudé wrote:
> On 22/9/23 17:59, Cédric Le Goater wrote:
>> to fix warning :
>> 
>>    ../hw/i3c/aspeed_i3c.c: In function ‘aspeed_i3c_realize’:
>>    ../hw/i3c/aspeed_i3c.c:1959:17: warning: declaration of ‘dev’ shadows a 
>> parameter [-Wshadow=local]
>>     1959 |         Object *dev = OBJECT(&s->devices[i]);
>>          |                 ^~~
>>    ../hw/i3c/aspeed_i3c.c:1942:45: note: shadowed declaration is here
>>     1942 | static void aspeed_i3c_realize(DeviceState *dev, Error **errp)
>>          |                                ~~~~~~~~~~~~~^~~
>> 
>> Signed-off-by: Cédric Le Goater <clg@kaod.org>
>> ---
>>   hw/misc/aspeed_i3c.c | 6 +++---
>>   1 file changed, 3 insertions(+), 3 deletions(-)
>> 
>> diff --git a/hw/misc/aspeed_i3c.c b/hw/misc/aspeed_i3c.c
>> index f54f5da522b3..d1ff61767167 100644
>> --- a/hw/misc/aspeed_i3c.c
>> +++ b/hw/misc/aspeed_i3c.c
>> @@ -296,13 +296,13 @@ static void aspeed_i3c_realize(DeviceState *dev, Error 
>> **errp)
>
> Alternatively:
>
> -- >8 --
>
> -static void aspeed_i3c_realize(DeviceState *dev, Error **errp)
> +static void aspeed_i3c_realize(DeviceState *ctrl, Error **errp)
>   {
>       int i;
> -    AspeedI3CState *s = ASPEED_I3C(dev);
> -    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
> +    AspeedI3CState *s = ASPEED_I3C(ctrl);
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(ctrl);

Hmm, I feel like `dev` isn't an unreasonable or unusual name for the formal 
parameter? Switching to `ctrl` isn't my immediate preference.

>
> ---
>
>>       memory_region_add_subregion(&s->iomem_container, 0x0, &s->iomem);
>>   
>>       for (i = 0; i < ASPEED_I3C_NR_DEVICES; ++i) {
>> -        Object *dev = OBJECT(&s->devices[i]);
>> +        Object *i3c_dev = OBJECT(&s->devices[i]);

Maybe `s/i3c_dev/subdev`? I dunno. That bikeshed isn't gonna get painted on its 
own.

Reviewed-by: Andrew Jeffery <andrew@aj.id.au>

>>   
>> -        if (!object_property_set_uint(dev, "device-id", i, errp)) {
>> +        if (!object_property_set_uint(i3c_dev, "device-id", i, errp)) {
>>               return;
>>           }
>>   
>> -        if (!sysbus_realize(SYS_BUS_DEVICE(dev), errp)) {
>> +        if (!sysbus_realize(SYS_BUS_DEVICE(i3c_dev), errp)) {
>>               return;
>>           }
>>   
>
> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>



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