linux-kernel - Re: [PATCH 3/3] lib: Update LZ4 compressor module based on LZ4 v1.7.2.

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Date:   Thu, 22 Dec 2016 18:31:05 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Sven Schmidt <4sschmid@...ormatik.uni-hamburg.de>
Cc:     joe@...ches.com, akpm@...ux-foundation.org, bongkyu.kim@....com,
        sergey.senozhatsky@...il.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] lib: Update LZ4 compressor module based on LZ4
 v1.7.2.

On Wed, Dec 21, 2016 at 09:04:02PM +0100, Sven Schmidt wrote:
> On 12/20/2016 08:52 PM, Joe Perches wrote:
> > On Tue, 2016-12-20 at 19:53 +0100, Sven Schmidt wrote:
> >> This patch updates LZ4 kernel module to LZ4 v1.7.2 by Yann Collet.
> >> The kernel module is inspired by the previous work by Chanho Min.
> >> The updated LZ4 module will not break existing code since there were alias
> >> methods added to ensure backwards compatibility.
> >
> >[]
> >
> >> diff --git a/include/linux/lz4.h b/include/linux/lz4.h
> > []
> >> @@ -1,87 +1,218 @@
> >>  #ifndef __LZ4_H__
> >>  #define __LZ4_H__
> >> +
> >>  /*
> >>   * LZ4 Kernel Interface
> >>   *
> >> - * Copyright (C) 2013, LG Electronics, Kyungsik Lee <kyungsik.lee@....com>
> >> + * Copyright (C) 2016, Sven Schmidt <4sschmid@...ormatik.uni-hamburg.de>
> >
> > Deleting copyright notices is poor form and shouldn't be done.
> >
> > I didn't look at the rest
> >
> 
> Thanks Joe for your time. If you would take a look at the rest, you may notice
> that I changed almost the whole file. That's why I also changed the copyright note.
> If you think I should keep the original note, I will do that.

You have to, please consult a lawyer if you have questions about
copyright issues.  Or better yet, there's a free presentation/course
online about copyright on the linuxfoundation.org website somewhere that
should answer all of your questions here.  I recommend taking a few
minutes and going through that.

thanks,

greg k-h