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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Vladimir Zapolskiy <vz@mleia.com>
Cc: Rob Herring <robh@kernel.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] driver core: flush async calls before testing driver removal
Date: Sat, 10 Dec 2016 08:32:45 +0100	[thread overview]
Message-ID: <20161210073245.GA19610@kroah.com> (raw)
In-Reply-To: <20161210001519.24870-1-vz@mleia.com>

On Sat, Dec 10, 2016 at 02:15:19AM +0200, Vladimir Zapolskiy wrote:
> If CONFIG_DEBUG_TEST_DRIVER_REMOVE option is enabled a number of false
> positives are reported for ATA controller drivers, because ATA port
> probes are done asynchronously, and the same problem may also touch
> other asynchronously probed drivers.
> 
> To reduce the rate of false reports on boot call async_synchronize_full()
> before attempting to remove a driver, the same is done in delete_module()
> syscall for all possible drivers and in __device_release_driver() function
> for asynchronously probed drivers.

__device_release_driver() already calls this function, why call it
again?

thanks,

greg k-h

  parent reply	other threads:[~2016-12-10  7:32 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-10  0:15 [PATCH] driver core: flush async calls before testing driver removal Vladimir Zapolskiy
2016-12-10  1:59 ` Dmitry Torokhov
2016-12-10 12:57   ` Vladimir Zapolskiy
2016-12-10  7:32 ` Greg Kroah-Hartman [this message]
2016-12-10 12:38   ` Vladimir Zapolskiy
2016-12-10 13:04     ` Greg Kroah-Hartman
2016-12-11  1:44       ` Vladimir Zapolskiy
2016-12-12 17:50         ` Tejun Heo
2016-12-12 18:33           ` Rob Herring
2016-12-12 18:46             ` Tejun Heo

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