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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: dmaengine@vger.kernel.org, Vladimir Murzin <vladimir.murzin@arm.com>
Cc: Vinod Koul <vkoul@kernel.org>,
	Dan Williams <dan.j.williams@intel.com>,
	Peter Ujfalusi <peter.ujfalusi@ti.com>
Subject: 6b41030fdc790 broke dmatest badly
Date: Fri, 4 Sep 2020 20:34:01 +0300	[thread overview]
Message-ID: <20200904173401.GH1891694@smile.fi.intel.com> (raw)

It becomes a bit annoying to fix dmatest after almost each release.
The commit 6b41030fdc79 ("dmaengine: dmatest: Restore default for channel")
broke my use case when I tried to start busy channel.

So, before this patch
	...
	echo "busy_chan" > channel
	echo 1 > run
	sh: write error: Device or resource busy
	[ 1013.868313] dmatest: Could not start test, no channels configured

After I have got it run on *ALL* available channels.

dmatest compiled as a module.

Fix this ASAP, otherwise I will send revert of this and followed up patch next
week.

-- 
With Best Regards,
Andy Shevchenko



             reply	other threads:[~2020-09-04 18:10 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-04 17:34 Andy Shevchenko [this message]
2020-09-07 11:03 ` 6b41030fdc790 broke dmatest badly Vladimir Murzin
2020-09-07 12:04   ` Andy Shevchenko
2020-09-07 13:06     ` Vladimir Murzin
2020-09-07 14:05       ` Andy Shevchenko
2020-09-07 16:52         ` Vladimir Murzin
2020-09-11  8:34           ` Vladimir Murzin
2020-09-15 12:35             ` Andy Shevchenko
2020-09-15 12:46               ` Vladimir Murzin
     [not found]                 ` <20200915134625.GZ3956970@smile.fi.intel.com>
2020-09-15 13:56                   ` Andy Shevchenko
2020-09-15 14:20                     ` Vladimir Murzin

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