linux-kernel - Re: [PATCH 1/5] serial: 8250_pci: use DEFINE_PCI_DEVICE

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Date:	Mon, 02 Dec 2013 11:44:37 +0100
From:	Jonas Bonn <jonas@...thpole.se>
To:	Joe Perches <joe@...ches.com>
CC:	Jingoo Han <jg1.han@...sung.com>,
	'Guenter Roeck' <linux@...ck-us.net>,
	'Greg Kroah-Hartman' <gregkh@...uxfoundation.org>,
	'Bjorn Helgaas' <bhelgaas@...gle.com>,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	'Andrew Morton' <akpm@...ux-foundation.org>,
	'Andy Whitcroft' <apw@...onical.com>,
	linux-serial@...r.kernel.org
Subject: Re: [PATCH 1/5] serial: 8250_pci: use DEFINE_PCI_DEVICE_TABLE macro

Hi Joe,

On 12/02/2013 06:48 AM, Joe Perches wrote:
> (Adding Jonas Bonn to list as he added the macro in the first place...)

Thanks... ;)

Actually, I think I submitted an even uglier macro called 
DECLARE_PCI_DEVICE_TABLE... might have been the first kernel patch I 
ever sent?  In any case, it should certainly have been kindly rejected. 
  After it hit mainline Andrew Morton just about choked on his tea and 
renamed it DEFINE_PCI_DEVICE_TABLE.

>
> On Mon, 2013-12-02 at 13:03 +0900, Jingoo Han wrote:
>> On Monday, December 02, 2013 12:56 PM, Guenter Roeck wrote:
>>> On 12/01/2013 07:50 PM, Jingoo Han wrote:
>>>> On Monday, December 02, 2013 12:46 PM, Guenter Roeck wrote:
>>>>> On 12/01/2013 04:07 PM, Jingoo Han wrote:
>>>>>> On Friday, November 29, 2013 10:34 AM, Jingoo Han wrote:
>>>>>>> On Thursday, November 28, 2013 3:24 PM, Joe Perches wrote:
>>>>>>>> On Wed, 2013-11-27 at 21:53 -0800, 'Greg Kroah-Hartman' wrote:
>>>>>>>>> On Wed, Nov 27, 2013 at 09:40:13PM -0800, Joe Perches wrote:
>>>>>>>>>> On Thu, 2013-11-28 at 14:29 +0900, Jingoo Han wrote:
>>>>>>>>>>> On Thursday, November 28, 2013 1:08 PM, Greg Kroah-Hartman wrote:
>>>>>>>>>>>> On Thu, Nov 28, 2013 at 10:55:35AM +0900, Jingoo Han wrote:
>>>>>>>>>>>>> This macro is used to create a struct pci_device_id array.
>>>>>>>>>>>>
>>>>>>>>>>>> Yeah, and it's a horrid macro that deserves to be removed, please don't
>>>>>>>>>>>> use it in more places.
>>>>>>>>>>>>
>>>>>>>>>>>> Actually, if you could just remove it, that would be best, sorry, I'm
>>>>>>>>>>>> not going to take these patches.
>>>>>>>>>>>

Feel free to just remove the macro; it serves no purpose but to confuse. 
  That said, the underlying issue that the macro was supposed to resolve 
(if I recall correctly) was to make sure that all the struct 
pci_device_id instances were marked as const, as per the PCI 
documentation; if there's something checkpatch should be warning for 
it's simply that the struct is const.

/Jonas

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