linux-kernel - Re: [PATCH] staging: exfat: rebase to sdFAT v2.2.0

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Date:   Thu, 19 Sep 2019 05:22:03 +0900
From:   Ju Hyung Park <qkrwngud825@...il.com>
To:     Greg KH <gregkh@...uxfoundation.org>,
        Namjae Jeon <namjae.jeon@...sung.com>, sj1557.seo@...sung.com
Cc:     alexander.levin@...rosoft.com,
        Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        sergey.senozhatsky@...il.com,
        Valdis Kletnieks <valdis.kletnieks@...edu>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        devel@...verdev.osuosl.org, linkinjeon@...il.com,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: exfat: rebase to sdFAT v2.2.0

Hi Greg,

On Thu, Sep 19, 2019 at 5:12 AM Greg KH <gregkh@...uxfoundation.org> wrote:
> That's a lot of rewriting :(
>
> How about at least keeping the file names the same to make it easier to
> see what happened here?
>
> Then send a follow-on patch that just does the rename?

That's still not quite useful tbh, lemme bring the diff stat I wrote
in previous email just in case you missed it:
<Full diff stat>
 Kconfig      |   79 +-
 Makefile     |   46 +-
 api.c        |  423 ----
 api.h        |  310 ---
 blkdev.c     |  409 +---
 cache.c      | 1142 ++++-----
 config.h     |   49 -
 core.c       | 5583 ++++++++++++++++++++++++--------------------
 core.h       |  196 --
 core_exfat.c | 1553 ------------
 exfat.h      | 1309 +++++++----
 exfat_fs.h   |  417 ----
 extent.c     |  351 ---
 fatent.c     |  182 --
 misc.c       |  401 ----
 nls.c        |  490 ++--
 super.c      | 5103 +++++++++++++++++++++-------------------
 upcase.c     |  740 ++++++
 upcase.h     |  407 ----
 version.h    |   29 -
 xattr.c      |  136 --
 21 files changed, 8186 insertions(+), 11169 deletions(-)

<diff-filter=M>
 Kconfig  |   79 +-
 Makefile |   46 +-
 blkdev.c |  409 +---
 cache.c  | 1142 +++++-----
 core.c   | 5583 ++++++++++++++++++++++++++----------------------
 exfat.h  | 1309 ++++++++----
 nls.c    |  490 ++---
 super.c  | 5103 ++++++++++++++++++++++---------------------
 8 files changed, 7446 insertions(+), 6715 deletions(-)

These diff stats were taken by removing "exfat_" prefix from the
current staging drivers.

But if that's still what you want, I'll do it.
btw, removing "exfat_" prefix from the current one makes more sense imo.

If we add "exfat_" prefix to the new one, we get weird file names like
"exfat_core_exfat.c".

> And by taking something like this, are you agreeing that Samsung will
> help out with the development of this code to clean it up and get it
> into "real" mergable shape?

Well, I think you got me confused with Namjae.
(Yeah Korean names are confusing I know :) )

Namjae (or anyone else from Samsung) should answer that, not me.

I just prepared a patch as we were getting nowhere like you mentioned :)

> Also, I can't take this patch for this simple reason alone:
> Don't delete SPDX lines :)

Sorry.
I'll add that back for v2.

On Thu, Sep 19, 2019 at 5:13 AM Greg KH <gregkh@...uxfoundation.org> wrote:
>
> On Thu, Sep 19, 2019 at 04:59:20AM +0900, Park Ju Hyung wrote:
> > --- a/drivers/staging/exfat/exfat.h
> > +++ b/drivers/staging/exfat/exfat.h
> > @@ -1,4 +1,4 @@
> > -/* SPDX-License-Identifier: GPL-2.0 */
> > +// SPDX-License-Identifier: GPL-2.0-or-later
>
> You just changed the license of this file.  Are you SURE about that?

The sdFAT code release explicitly states "either version 2 of the
License, or (at your option) any later version", so I thought that
makes sense:
https://github.com/arter97/exfat-linux/commit/d5393c4cbe0e5b50231aacd33d9b5b0ddf46a005

Please correct me if I'm wrong.

Thanks.