netdev - Re: [PATCH 1/4] i2c: designware: Create shared header hosting driver name

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Message-ID: <59b7ba5a-14a8-497e-8cf8-53bdf4e8cb8e@linux.intel.com>
Date: Thu, 25 Apr 2024 11:33:02 +0300
From: Jarkko Nikula <jarkko.nikula@...ux.intel.com>
To: Andy Shevchenko <andy.shevchenko@...il.com>,
 Florian Fainelli <florian.fainelli@...adcom.com>
Cc: linux-kernel@...r.kernel.org,
 Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
 Mika Westerberg <mika.westerberg@...ux.intel.com>,
 Jan Dabros <jsd@...ihalf.com>, Andi Shyti <andi.shyti@...nel.org>,
 Lee Jones <lee@...nel.org>, Jiawen Wu <jiawenwu@...stnetic.com>,
 Mengyuan Lou <mengyuanlou@...-swift.com>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
 Andrew Lunn <andrew@...n.ch>, Duanqiang Wen <duanqiangwen@...-swift.com>,
 "open list:SYNOPSYS DESIGNWARE I2C DRIVER" <linux-i2c@...r.kernel.org>,
 "open list:WANGXUN ETHERNET DRIVER" <netdev@...r.kernel.org>
Subject: Re: [PATCH 1/4] i2c: designware: Create shared header hosting driver
 name

On 4/24/24 2:59 AM, Andy Shevchenko wrote:
> Tue, Apr 23, 2024 at 04:36:19PM -0700, Florian Fainelli kirjoitti:
>> We have a number of drivers that reference the string "i2c_designware"
>> yet this is copied all over the places with opportunities for this
>> string being mis-used. Create a shared header that defines this as a
>> constant that other drivers can reference.
> 
> ...
> 
>>   #include <linux/i2c.h>
>> +#include <linux/i2c-designware.h>
> 
> Can it be hidden in the subfolder?
> 
> ...
> 
>> -#define DRIVER_NAME "i2c-designware-pci"
>> +#define DRIVER_NAME I2C_DESIGNWARE_NAME "-pci"
> 
> Oh, this makes all the things hard to read.
> 
>>   /* Work with hotplug and coldplug */
>> -MODULE_ALIAS("i2c_designware-pci");
>> +MODULE_ALIAS(DRIVER_NAME);
> 
> I believe we shouldn't use MODULE_ALIAS() without real justification.
> 
I think MODULE_ALIAS() is even needless here since this device is not 
added from another driver but loaded only for known PCI IDs in device table.