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

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Date:   Fri, 9 Jun 2023 13:48:53 +0200
From:   Andi Shyti <andi.shyti@...ux.intel.com>
To:     Sui Jingfeng <suijingfeng@...ngson.cn>
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>,
        Andi Shyti <andi.shyti@...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 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> 

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