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From: Huang Shijie <sjhuang@iluvatar.ai>
To: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: vkoul@kernel.org, dmaengine@vger.kernel.org,
	linux-kernel@vger.kernel.org, dave.jiang@intel.com,
	radhey.shyam.pandey@xilinx.com, appana.durga.rao@xilinx.com,
	jmkrzyszt@gmail.com, gomonovych@gmail.com, keescook@chromium.org,
	horms+renesas@verge.net.au, geert+renesas@glider.be,
	shawnguo@kernel.org, baoyou.xie@linaro.org,
	michal.simek@xilinx.com, baohua@kernel.org,
	ludovic.desroches@microchip.com, linus.walleij@linaro.org,
	david.brown@linaro.org
Subject: Re: [PATCH 00/46] Use dmaenginem_async_device_register to simplify code
Date: Sun, 5 Aug 2018 09:03:44 +0800	[thread overview]
Message-ID: <20180805010342.GA10132@hsj-ThinkPad-Edge-E431> (raw)
In-Reply-To: <5d8b222c-6798-aebc-43fc-d4dab9b6f43b@ti.com>

On Fri, Aug 03, 2018 at 11:20:49AM +0300, Peter Ujfalusi wrote:
> Hi,
> 
> On 2018-08-03 10:19, Huang Shijie wrote:
> > All the patches are using dmaenginem_async_device_register to simplify code
> > except the last one:
> >   dmaengine: add COMPILE_TEST for the drivers
> > 
> > I use the last one to do the compiler test.  
> > There are still 20 drivers which do not use the dmaenginem_async_device_register.
> > Let me take a rest, if this patch set is accepted, I will do the rest.
> 
> I think for most of the drivers this series is going to open a race
> which is essentially:
> 
> prior:
> _remove()
> {
> ...
> 	dma_async_device_register()
> 	/* Free resources, disable HW, etc */

If these resources are managed by the devm_* APIs.
We can use the dmaenginem_async_device_register().

The Devres will release all the things in the following order:
       ................................................
 	dma_async_device_unregister()
 	/* Free resources, disable HW, etc */
       ................................................

    
Thanks
Huang Shijie

      parent reply	other threads:[~2018-08-05  1:03 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-03  7:19 [PATCH 00/46] Use dmaenginem_async_device_register to simplify code Huang Shijie
2018-08-03  7:19 ` [PATCH 01/46] dmaengine: zx_dma: use dmaenginem_async_device_register to simplify the code Huang Shijie
2018-08-03  7:19 ` [PATCH 02/46] dmaengine: zynqmp_dma: " Huang Shijie
2018-08-03  7:19 ` [PATCH 03/46] dmaengine: xilinx_dma: " Huang Shijie
2018-08-03  7:19 ` [PATCH 04/46] dmaengine: xgene-dma: " Huang Shijie
2018-08-03  7:19 ` [PATCH 05/46] dmaengine: txx9dmac: " Huang Shijie
2018-08-03  7:19 ` [PATCH 06/46] dmaengine: timb_dma: " Huang Shijie
2018-08-03  7:19 ` [PATCH 07/46] dmaengine: omap-dma: " Huang Shijie
2018-08-03  7:47   ` Peter Ujfalusi
2018-08-03  7:52     ` Huang Shijie
2018-08-09  2:36     ` Vinod
2018-08-03  7:19 ` [PATCH 08/46] dmaengine: edma: " Huang Shijie
2018-08-03  7:50   ` Peter Ujfalusi
2018-08-03  7:54     ` Huang Shijie
2018-08-03  7:19 ` [PATCH 09/46] dmaengine: cppi41: " Huang Shijie
2018-08-03  7:55   ` Peter Ujfalusi
2018-08-03  8:02     ` Huang Shijie
2018-08-06  3:28     ` Huang Shijie
2018-08-07  7:01       ` Peter Ujfalusi
2018-08-07  7:16         ` Huang Shijie
2018-08-08  7:16         ` Tony Lindgren
2018-08-03  7:19 ` [PATCH 10/46] dmaengine: tegra210-adma: use helper dmaenginem_async_device_register Huang Shijie
2018-08-03  7:19 ` [PATCH 11/46] dmaengine: tegra20-apb-dma: " Huang Shijie
2018-08-03  7:19 ` [PATCH 12/46] dmaengine: sun6i-dma: " Huang Shijie
2018-08-03  7:19 ` [PATCH 13/46] dmaengine: sun4i-dma: use dmaenginem_async_device_register to simplify the code Huang Shijie
2018-08-03  7:19 ` [PATCH 14/46] dmaengine: coh901318: " Huang Shijie
2018-08-03  7:19 ` [PATCH 15/46] dmaengine: s3c24xx-dma: " Huang Shijie
2018-08-03  7:19 ` [PATCH 16/46] dmaengine: ste_dma40: " Huang Shijie
2018-08-03  7:19 ` [PATCH 17/46] dmaengine: stm32-mdma: " Huang Shijie
2018-08-03  8:10   ` Pierre Yves MORDRET
2018-08-03  7:19 ` [PATCH 18/46] dmaengine: stm32-dma: " Huang Shijie
2018-08-03  7:19 ` [PATCH 19/46] dmaengine: sprd-dma: " Huang Shijie
2018-08-03  7:19 ` [PATCH 20/46] dmaengine: sirf-dma: " Huang Shijie
2018-08-03  7:19 ` [PATCH 21/46] dmaengine: bam_dma: " Huang Shijie
2018-08-03  7:19 ` [PATCH 22/46] dmaengine: sudmac: " Huang Shijie
2018-08-03  7:19 ` [PATCH 23/46] dmaengine: sa11x0-dma: " Huang Shijie
2018-08-03  7:19 ` [PATCH 24/46] dmaengine: nbpfaxi: " Huang Shijie
2018-08-03  7:19 ` [PATCH 25/46] dmaengine: mmp_tdma: " Huang Shijie
2018-08-03  7:19 ` [PATCH 26/46] dmaengine: shdmac: " Huang Shijie
2018-08-03  7:19 ` [PATCH 27/46] dmaengine: usb-dmac: " Huang Shijie
2018-08-03  7:19 ` [PATCH 28/46] dmaengine: rcar-dmac: " Huang Shijie
2018-08-03  7:19 ` [PATCH 29/46] dmaengine: hidma: " Huang Shijie
2018-08-03  7:20 ` [PATCH 30/46] dmaengine: pxa_dma: " Huang Shijie
2018-08-03  7:20 ` [PATCH 31/46] dmaengine: moxart-dma: " Huang Shijie
2018-08-03  7:20 ` [PATCH 32/46] dmaengine: pl330: " Huang Shijie
2018-08-03  7:20 ` [PATCH 33/46] dmaengine: pch_dma: " Huang Shijie
2018-08-03  7:20 ` [PATCH 34/46] dmaengine: mxs-dma: " Huang Shijie
2018-08-03  7:20 ` [PATCH 35/46] dmaengine: mtk-hsdma: " Huang Shijie
2018-08-03  7:20 ` [PATCH 36/46] dmaengine: k3dma: " Huang Shijie
2018-08-03  7:20 ` [PATCH 37/46] dmaengine: imx-sdma: " Huang Shijie
2018-08-03  7:20 ` [PATCH 38/46] dmaengine: imx-dma: " Huang Shijie
2018-08-03  7:20 ` [PATCH 39/46] dmaengine: img-mdc-dma: " Huang Shijie
2018-08-03  7:20 ` [PATCH 40/46] dmaengine: fsl-edma: " Huang Shijie
2018-08-03  7:20 ` [PATCH 41/46] dmaengine: at_hdmac: " Huang Shijie
2018-08-03  7:20 ` [PATCH 42/46] dmaengine: at_xdmac: " Huang Shijie
2018-08-03  7:20 ` [PATCH 43/46] dmaengine: dma-jz4780: " Huang Shijie
2018-08-03  7:20 ` [PATCH 44/46] dmaengine: dma-jz4740: " Huang Shijie
2018-08-03  7:20 ` [PATCH 45/46] dmaengine: dma-axi-dmac: " Huang Shijie
2018-08-03  7:20 ` [PATCH 46/46] dmaengine: add COMPILE_TEST for the drivers Huang Shijie
2018-08-03  7:51 ` [PATCH 00/46] Use dmaenginem_async_device_register to simplify code Lars-Peter Clausen
2018-08-03  7:59   ` Huang Shijie
2018-08-03  8:20 ` Peter Ujfalusi
2018-08-03  8:48   ` Huang Shijie
2018-08-05  1:03   ` Huang Shijie [this message]

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