linux-kernel - Re: [PATCH v5 1/4] PCI/VGA: Use unsigned type for the io

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Message-ID: <9899fa21-8ffd-eed4-2b6e-68ddcd6fd670@loongson.cn>
Date:   Fri, 9 Jun 2023 20:25:16 +0800
From:   Sui Jingfeng <suijingfeng@...ngson.cn>
To:     Andi Shyti <andi.shyti@...ux.intel.com>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v5 1/4] PCI/VGA: Use unsigned type for the io_state
 variable

Hi,

On 2023/6/9 19:48, Andi Shyti wrote:
> Hi Sui,
>
> On Fri, Jun 09, 2023 at 07:24:14PM +0800, Sui Jingfeng wrote:
>> The io_state variable in the vga_arb_write() function is declared with
>> unsigned int type, while the vga_str_to_iostate() function takes int *
>> type. To keep them consistent, replace the third argument of
>> vga_str_to_iostate() function with the unsigned int * type.
>>
>> Signed-off-by: Sui Jingfeng <suijingfeng@...ngson.cn>
> Reviewed-by: Andi Shyti <andi.shyti@...ux.intel.com>
Thanks a lot.
> Andi
>
>> ---
>>   drivers/pci/vgaarb.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/pci/vgaarb.c b/drivers/pci/vgaarb.c
>> index 5a696078b382..c1bc6c983932 100644
>> --- a/drivers/pci/vgaarb.c
>> +++ b/drivers/pci/vgaarb.c
>> @@ -77,7 +77,7 @@ static const char *vga_iostate_to_str(unsigned int iostate)
>>   	return "none";
>>   }
>>   
>> -static int vga_str_to_iostate(char *buf, int str_size, int *io_state)
>> +static int vga_str_to_iostate(char *buf, int str_size, unsigned int *io_state)
>>   {
>>   	/* we could in theory hand out locks on IO and mem
>>   	 * separately to userspace but it can cause deadlocks */
>> -- 
>> 2.25.1

-- 
Jingfeng