linux-kernel - Re: [PATCH] drivers: usb: gadget: prefer pr

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Message-ID: <9aaa06ad-0bd8-486d-b16b-66927d57cf96@metux.net>
Date:   Wed, 9 Dec 2020 12:11:36 +0100
From:   "Enrico Weigelt, metux IT consult" <info@...ux.net>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        "Enrico Weigelt, metux IT consult" <info@...ux.net>
Cc:     linux-kernel@...r.kernel.org, balbi@...nel.org, leoyang.li@....com,
        linux-usb@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH] drivers: usb: gadget: prefer pr_*() functions over raw
 printk()

On 08.12.20 16:54, Laurent Pinchart wrote:

Hi,

>> diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
>> index 2b893bceea45..4834fafb3f70 100644
>> --- a/drivers/usb/gadget/udc/atmel_usba_udc.c
>> +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
>> @@ -1573,7 +1573,7 @@ static void usba_control_irq(struct usba_udc *udc, struct usba_ep *ep)
>>  		 * generate or receive a reply right away. */
>>  		usba_ep_writel(ep, CLR_STA, USBA_RX_SETUP);
>>  
>> -		/* printk(KERN_DEBUG "setup: %d: %02x.%02x\n",
>> +		/* pr_debug("setup: %d: %02x.%02x\n",
>>  			ep->state, crq.crq.bRequestType,
>>  			crq.crq.bRequest); */
> 
> I wonder if this shouldn't be dropped instead, commented-out code isn't
> very useful.

Indeed. Shall I send a separate patch for that ?

> When a pointer to a struct device is available, dev_err() would be much
> better. That's however out of scope for this patch, but it would be nice
> to address it. This would become
> 
> 		dev_err(&pdev->dev, "Check IRQ setup!\n");
> 

You're right. I didn't check for that yet. I'll do it in a separate
patch.


--mtx

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Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
info@...ux.net -- +49-151-27565287