linux-kernel - Re: [PATCH v11 0/2] Add support for the Allwinner A31 DMA Controller

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Message-ID: <20140725131217.GS8181@intel.com>
Date:	Fri, 25 Jul 2014 18:42:17 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:	Dan Williams <dan.j.williams@...el.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...glegroups.com, kevin.z.m.zh@...il.com,
	sunny@...winnertech.com, shuge@...winnertech.com,
	zhuzhenhua@...winnertech.com, Arnd Bergmann <arnd@...db.de>,
	andriy.shevchenko@...el.com, dmaengine@...r.kernel.org
Subject: Re: [PATCH v11 0/2] Add support for the Allwinner A31 DMA
 Controller

On Thu, Jul 17, 2014 at 09:46:14PM +0200, Maxime Ripard wrote:
> Hi,
> 
> This patchset adds support for the DMA controller found in the
> Allwinner A31 and A23 SoCs.
> 
> This has been tested using the newly introduced SPI driver on an A31
> EVK. Support for DMA-driven SPI transfers will be the subject of
> another patch serie.
> 
> This has been around for around 5 monthes now, and didn't get any
> review but nitpicks for three versions, so I feel like it could be
> merged quite quickly.
I have applied this now.

Can you please send follow patches for these:
- don't recall if I pointed earlier, but can we use direct conversion for
  calculating convert_burst() and convert_buswidth(), latter one at least
  seem doable
- don't use devm_request_irq(). You have irq enabled and you have killed
  tasklet. This is too racy. You need to ensure no irqs can be generated before killing
  tasklets.
- use synchronize_irq() before killing tasklet

Thanks

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