linux-kernel - Re: [PATCH v2 1/1] mcb: Use DEFINE_RES

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Date:   Wed, 16 Jun 2021 15:37:44 +0800
From:   "Leizhen (ThunderTown)" <thunder.leizhen@...wei.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     Johannes Thumshirn <morbidrsa@...il.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/1] mcb: Use DEFINE_RES_MEM() to simplify code



On 2021/6/16 15:17, Greg Kroah-Hartman wrote:
> On Wed, Jun 16, 2021 at 02:57:14PM +0800, Leizhen (ThunderTown) wrote:
>>
>>
>> On 2021/6/16 14:41, Greg Kroah-Hartman wrote:
>>> On Wed, Jun 16, 2021 at 09:55:09AM +0800, Zhen Lei wrote:
>>>> Use DEFINE_RES_MEM() to save a couple of lines of code, which makes the
>>>> code a bit shorter and easier to read. The start address does not need to
>>>> appear twice.
>>>>
>>>> By the way, the value of '.end' should be "start + size - 1". So the
>>>> previous writing should have omitted subtracted 1.
>>>
>>> Does that mean the current code is wrong and this is a bugfix?  If so,
>>> what commit id does this fix?
>>
>> OK, I'll add Fixes.
>>
>> However, some people think that only functional fixes need to add "Fixes".
> 
> If this is not a "fix" then that is fine, I can take it as-is, it just
> was not obvious.

Sorry, I didn't read the email in time. I just post v3.

Yes, this patch just avoids wasting a bit of memory. There's no need to go to
an earlier version.

> 
> greg k-h
> 
> .
>