Re: [PATCH] ata: pata_cs5535: Fix W=1 warnings

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On 6/29/22 16:41, John Garry wrote:
> On 28/06/2022 19:39, Sergey Shtylyov wrote:
>> On 6/28/22 1:05 PM, Sergey Shtylyov wrote:
>> [...]
>>>>> x86_64 allmodconfig build with W=1 gives these warnings:
>>>>>
>>>>> drivers/ata/pata_cs5535.c: In function ‘cs5535_set_piomode’:
>>>>> drivers/ata/pata_cs5535.c:93:11: error: variable ‘dummy’ set but not used [-Werror=unused-but-set-variable]
>>>>>    u32 reg, dummy;
>>>>>             ^~~~~
>>>>> drivers/ata/pata_cs5535.c: In function ‘cs5535_set_dmamode’:
>>>>> drivers/ata/pata_cs5535.c:132:11: error: variable ‘dummy’ set but not used [-Werror=unused-but-set-variable]
>>>>>    u32 reg, dummy;
>>>>>             ^~~~~
>>>>> cc1: all warnings being treated as errors
>>>>>
>>>>> Mark variables 'dummy' as "maybe unused" to satisfy when rdmsr() is
>>>>> stubbed, which is the same as what we already do in pata_cs5536.c .
>>
>>     Wait, what do you mean by "stubbed", the version in <asm/paravirt.h>?
> 
> Ah, this mentioning of stubbed is wrong on my part. I was distracted by 
> the stub in pata_cs5536.c - that's what my text editor showed me for the 
> defintion of rdmsr()
> 
> Hi Damien,
> 
> I see that you applied this patch. If it has not been pushed can we hand 
> edit the commit message or I can send a v2? Or maybe we can live with it...

Send me an updated commit message and I will amend.

> 
> Thanks,
> John
> 
>>
>>>>>
>>>>> Signed-off-by: John Garry <john.garry@xxxxxxxxxx>
>>>
>>> Reviewed-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
>>
>> [...]
>>
>> MBR, Sergey
>> .
> 


-- 
Damien Le Moal
Western Digital Research




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