linux-kernel - Re: [PATCH v2] staging: erofs: add SPDX identifer

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Date:   Mon, 8 Oct 2018 22:36:39 +0800
From:   Gao Xiang <gaoxiang25@...wei.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     Loic Tourlonias <loic.tourlonias.lkml@...il.com>,
        Chao Yu <yuchao0@...wei.com>, <devel@...verdev.osuosl.org>,
        <linux-erofs@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] staging: erofs: add SPDX identifer

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/.

Thanks,
Gao Xiang

> 
> thanks,
> 
> greg k-h