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Subject: Re: [PATCH v2] staging: erofs: add SPDX identifer
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CC:     <devel@driverdev.osuosl.org>, <linux-erofs@lists.ozlabs.org>,
        Chao Yu <yuchao0@huawei.com>,
        Loic Tourlonias <loic.tourlonias.lkml@gmail.com>,
        <linux-kernel@vger.kernel.org>
References: <20181008141409.2624-1-loic.tourlonias.lkml@gmail.com>
 <20181008142228.GB13359@kroah.com>
 <e9620bf6-5f3f-108d-b9f1-91af1ad603d6@huawei.com>
 <20181008144335.GA15968@kroah.com>
From:   Gao Xiang <gaoxiang25@huawei.com>
Message-ID: <a460f98f-d566-1d9d-b395-e8604519b442@huawei.com>
Date:   Mon, 8 Oct 2018 22:48:18 +0800
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Hi Greg,

On 2018/10/8 22:43, Greg Kroah-Hartman wrote:
> On Mon, Oct 08, 2018 at 10:36:39PM +0800, Gao Xiang wrote:
>> Hi Greg,
>>
>> On 2018/10/8 22:22, Greg Kroah-Hartman wrote:
>>> Why delete that line?
>>>
>>> But wait, why do we even have this file at all?  What's wrong with the
>>> lib/lz4/ code that we have in the kernel today?  Shouldn't the code
>>> using these files be moved over to use the lib/ code instead and this
>>> file be deleted?
>>
>> EROFS uses customized LZ4 decompression code for now (which has been offically
>> supported in lz4 1.8.3, I have updated it in
>> https://ozlabs.org/~akpm/mmots/broken-out/lib-lz4-update-lz4-decompressor-module.patch
>> if it is shown up in Linux 4.20, I will remove all the customized LZ4 decompression code),
>> but lib/ code lz4def.h isn't export to include/.
> 
> It should show up in 4.20, so you should be able to remove this all
> then.

Yes, that is correct. I will fix it in 4.20 if the updated LZ4 is already there. :)

Thanks,
Gao Xiang

> 
> thanks,
> 
> greg k-h
>