linux-kernel - Re: [PATCH v7] spi: sun4i: Allow transfers larger than FIFO size

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20161026085528.vjjypbfmfbhvileb@lukather>
Date:   Wed, 26 Oct 2016 10:55:28 +0200
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Alexandru Gagniuc <mr.nuke.me@...il.com>
Cc:     broonie@...nel.org, wens@...e.org, linux-spi@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7] spi: sun4i: Allow transfers larger than FIFO size

On Wed, Oct 26, 2016 at 12:00:30AM -0700, Alexandru Gagniuc wrote:
> This is the seventh attempt to get this patch in. I was prompted to look
> into this again as someone recently remarked:
> 
> " cool, to bad spi does not work properly on allwinner..."
> 
> Two and a half years ago,  we were told this will all be handled with DMA.
> A year or so ago, we were told this will all be handled with DMA.
> A week or so ago, we were told this will all be handled with DMA.
> 
> See the pattern?
> When DMA finally takes over, this fallback path is not mutually exclusive.

I definitely agree, and we had this patch in the CHIP kernel for quite
some time, working like a charm.

I was planning to respin it in the next few days, glad to see you took
care of it :)

Mark, any comments on this? For the record, it already has my Acked-by.

Thanks,
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

Download attachment "signature.asc" of type "application/pgp-signature" (802 bytes)