linux-kernel - Re: [PATCH] fs: exFAT read-only driver GPL implementation by Paragon Software.

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Message-ID: <20191021111357.q2lg2g43y7hrddqi@pali>
Date:   Mon, 21 Oct 2019 13:13:57 +0200
From:   Pali Rohár <pali.rohar@...il.com>
To:     Maurizio Lombardi <mlombard@...hat.com>
Cc:     Richard Weinberger <richard.weinberger@...il.com>,
        Konstantin Komarov <almaz.alexandrovich@...agon-software.com>,
        "viro@...iv.linux.org.uk" <viro@...iv.linux.org.uk>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH] fs: exFAT read-only driver GPL implementation by Paragon
 Software.

On Monday 21 October 2019 13:08:07 Maurizio Lombardi wrote:
> Dne 21.10.2019 v 12:54 Pali Rohár napsal(a):
> > Plus there is new version of
> > this out-of-tree Samsung's exfat driver called sdfat which can be found
> > in some Android phones. 
> 
> [...]
> 
> > 
> > About that one implementation from Samsung, which was recently merged
> > into staging tree, more people wrote that code is in horrible state and
> > probably it should not have been merged. That implementation has
> > all-one-one driver FAT12, FAT16, FAT32 and exFAT which basically
> > duplicate current kernel fs/fat code.
> > 
> > Quick look at this Konstantin's patch, it looks like that code is not in
> > such bad state as staging one. It has only exFAT support (no FAT32) but
> > there is no write support (yet).
> 
> But, AFAIK, Samsung is preparing a patch that will replace the current
> staging driver with their newer sdfat driver that also has write support.
> 
> https://marc.info/?l=linux-fsdevel&m=156985252507812&w=2

Maurizio, thank you for reference! I have not caught this Samsung
activity yet! So we now we have +1 for count of exFAT drivers.

-- 
Pali Rohár
pali.rohar@...il.com