From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Alessandro Rubini <rubini-list@gnudd.com>
Cc: david-b@pacbell.net, linux-input@vger.kernel.org,
linux-arm-kernel@lists.arm.linux.org.uk
Subject: Re: [PATCH] ads7846: allocate separate cache lines for tx and rx data
Date: Thu, 16 Jul 2009 08:15:29 +0100 [thread overview]
Message-ID: <20090716071529.GA28840@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <20090715193326.GA13306@mail.gnudd.com>
On Wed, Jul 15, 2009 at 09:33:26PM +0200, Alessandro Rubini wrote:
> >> The issue was discussed with Russell King on linux-arm-kernel.
> >
> > Gee, but not with the author of that driver or the maintainer of
> > the SPI framework. Who could have pointed out instantly where
> > the true bug resides.
>
> So, where is it? I don't get it I'm sorry.
Clearly David has no knowledge of DMA cache line handing and has not
read the DMA API document. I really suggest that you ignore him until
he gets a fucking clue.
next prev parent reply other threads:[~2009-07-16 7:15 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-15 9:33 [PATCH] ads7846: allocate separate cache lines for tx and rx data Alessandro Rubini
2009-07-15 18:06 ` David Brownell
2009-07-15 19:33 ` Alessandro Rubini
2009-07-16 7:15 ` Russell King - ARM Linux [this message]
2009-07-16 7:22 ` Russell King - ARM Linux
2009-07-16 7:56 ` David Brownell
2009-07-16 7:28 ` David Brownell
2009-07-16 10:00 ` Marek Vasut
2009-07-16 15:35 ` David Brownell
2009-07-16 20:06 ` Russell King - ARM Linux
2009-07-16 7:51 ` David Brownell
2009-07-16 8:15 ` Alessandro Rubini
2009-07-16 8:35 ` David Brownell
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