答复: [PATCH -next] usb: renesas-xhci: Use pr_info while fw verify success

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Thanks for your advice, I will delete the log and send a new patch. 

-----邮件原件-----
发件人: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> 
发送时间: 2022年7月27日 0:52
收件人: chenxingdi <chenxingdi@xxxxxxxxxx>
抄送: mathias.nyman@xxxxxxxxx; linux-usb@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; chunkeey@xxxxxxxxxxxxxx
主题: Re: [PATCH -next] usb: renesas-xhci: Use pr_info while fw verify success

On Tue, Jul 26, 2022 at 02:05:09PM +0800, Chen Xingdi wrote:
> While fw verify success, it is confused to print an error log which is 
> actually not an error, so use pr_info to print firmware version 
> instead of pr_err.
> 
> Signed-off-by: Chen Xingdi <chenxingdi@xxxxxxxxxx>
> ---
>  drivers/usb/host/xhci-pci-renesas.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/host/xhci-pci-renesas.c 
> b/drivers/usb/host/xhci-pci-renesas.c
> index 52599d96634f..1eb1d863d545 100644
> --- a/drivers/usb/host/xhci-pci-renesas.c
> +++ b/drivers/usb/host/xhci-pci-renesas.c
> @@ -151,7 +151,7 @@ static int renesas_fw_verify(const void *fw_data,
>  	}
>  
>  	fw_version = get_unaligned_le16(fw_data + fw_version_pointer);
> -	pr_err("got firmware version: %02x.", fw_version);
> +	pr_info("got firmware version: %02x.", fw_version);

Why print anything at all?  When drivers are working properly, they should be quiet.  Who relies on this message being sent to the kernel log?

thanks,

greg k-h




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