linux-kernel - Re: [PATCH RFC 0/4] firmware: Add ZSTD-compressed file support

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Date:   Wed, 27 Jan 2021 18:09:48 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     Luis Chamberlain <mcgrof@...nel.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC 0/4] firmware: Add ZSTD-compressed file support

On Wed, Jan 27, 2021 at 04:49:35PM +0100, Takashi Iwai wrote:
> Hi,
> 
> it seems that ZSTD format is getting popular, and I've been asked
> about the firmware loader support.  So I took a quick glance, and it
> turned out that it's fairly easy thanks to the existing ZSTD API.
> Now high time to submit something.
> 
> The first patch adds a new Kconfig CONFIG_FW_LOADER_COMPRESS_ZSTD and
> the corresponding decompression function to the firmware loader code.
> For the already supported XZ-compression, CONFIG_FW_LOADER_COMPRESS_XZ
> is added to make it selectable explicitly, too.
> 
> The rest three patches are for selftest: a cleanup, a fix and the
> additional support of ZSTD format.
> 
> Currently, I have no idea whether any distro would use ZSTD files for
> firmware files in near future, though.  That's the reason of this
> patch set being an RFC for now.

Looks sane enough to me, if we have a real user, I see no reason why to
not merge this.

thanks,

greg k-h