From: Timur Tabi <timur@codeaurora.org>
To: Vinod Koul <vinod.koul@intel.com>
Cc: Sinan Kaya <okaya@codeaurora.org>,
dmaengine@vger.kernel.org, cov@codeaurora.org, jcm@redhat.com,
Dan Williams <dan.j.williams@intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH V2 2/3] dmaselftest: add memcpy selftest support functions
Date: Tue, 3 Nov 2015 10:48:19 -0600 [thread overview]
Message-ID: <5638E553.6050400@codeaurora.org> (raw)
In-Reply-To: <20151103161013.GE12910@localhost>
Vinod Koul wrote:
> Failing politely would be right thing to do. If DMA starts sending data to
> anywhere in system memory due to bug or wrong addresses we can't do
> anything to prevent that
My point is that I have a hard time believing that a DMA failure would
likely result the driver politely detecting the problem and exiting
properly. I just don't think it's realistic to expect that.
Now maybe it's better for a catastrophic failure to occur when the
driver loads instead of during some critical network operation.
--
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the
Code Aurora Forum, hosted by The Linux Foundation.
next prev parent reply other threads:[~2015-11-03 16:48 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1446444460-21600-1-git-send-email-okaya@codeaurora.org>
2015-11-02 6:07 ` [PATCH V2 1/3] dma: add Qualcomm Technologies HIDMA management driver Sinan Kaya
[not found] ` <1446444460-21600-2-git-send-email-okaya-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2015-11-02 15:57 ` Rob Herring
2015-11-02 15:57 ` Rob Herring
[not found] ` <CAL_Jsq+XCkaPD_Bop_BaTfEVP2YuOQ+=ChFvyLN47jps2NcZSA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-11-02 16:20 ` Sinan Kaya
2015-11-02 16:20 ` Sinan Kaya
2015-11-02 17:26 ` Timur Tabi
[not found] ` <56379CD6.5020807-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2015-11-02 17:42 ` Rob Herring
2015-11-02 17:42 ` Rob Herring
2015-11-02 17:48 ` Timur Tabi
[not found] ` <5637A1EB.9080002-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2015-11-02 18:25 ` Rob Herring
2015-11-02 18:25 ` Rob Herring
2015-11-02 18:30 ` Timur Tabi
2015-11-05 14:31 ` Rob Herring
2015-11-05 14:43 ` Timur Tabi
2015-11-06 13:13 ` Rob Herring
2015-11-02 18:49 ` Sinan Kaya
2015-11-02 22:00 ` Arnd Bergmann
2015-11-03 5:18 ` Sinan Kaya
2015-11-03 10:22 ` Andy Shevchenko
2015-11-03 10:22 ` Andy Shevchenko
2015-11-04 0:47 ` Sinan Kaya
2015-11-02 6:07 ` [PATCH V2 2/3] dmaselftest: add memcpy selftest support functions Sinan Kaya
2015-11-03 4:15 ` Vinod Koul
2015-11-03 4:18 ` Sinan Kaya
2015-11-03 6:30 ` Vinod Koul
2015-11-03 7:44 ` Dan Williams
2015-11-03 8:22 ` Andy Shevchenko
2015-11-03 16:08 ` Vinod Koul
2015-11-05 2:42 ` Sinan Kaya
2015-11-05 12:05 ` Vinod Koul
2015-11-05 16:17 ` Sinan Kaya
2015-11-07 6:23 ` Sinan Kaya
2015-11-08 13:53 ` Vinod Koul
2015-11-13 20:20 ` okaya
2015-11-03 15:51 ` Sinan Kaya
2015-11-03 16:06 ` Vinod Koul
2015-11-03 14:31 ` Timur Tabi
2015-11-03 16:10 ` Vinod Koul
2015-11-03 16:28 ` Sinan Kaya
2015-11-03 16:46 ` Timur Tabi
2015-11-03 16:57 ` Sinan Kaya
2015-11-03 16:48 ` Timur Tabi [this message]
2015-11-02 6:07 ` [PATCH V2 3/3] dma: add Qualcomm Technologies HIDMA channel driver Sinan Kaya
[not found] ` <1446444460-21600-4-git-send-email-okaya-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2015-11-03 10:10 ` Andy Shevchenko
2015-11-03 10:10 ` Andy Shevchenko
2015-11-04 0:07 ` Sinan Kaya
[not found] ` <56394C37.4060603-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2015-11-04 17:44 ` Andy Shevchenko
2015-11-04 17:44 ` Andy Shevchenko
2015-11-05 2:22 ` Sinan Kaya
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