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From: Saravana Kannan <saravanak@google.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>,
	"Rafael J . Wysocki" <rafael@kernel.org>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	"James E . J . Bottomley" <jejb@linux.ibm.com>,
	linux-scsi@vger.kernel.org, Avri Altman <avri.altman@wdc.com>,
	Bean Huo <huobean@gmail.com>, Can Guo <cang@codeaurora.org>,
	Asutosh Das <asutoshd@codeaurora.org>,
	Bart Van Assche <bvanassche@acm.org>,
	linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH RFC 0/2] driver core: Add ability to delete device links of unregistered devices
Date: Wed, 7 Jul 2021 10:41:48 -0700	[thread overview]
Message-ID: <CAGETcx-Sjo3scN-ZK-aqRCKi-6+1y_KXOuCqK97YgJS32u6tbg@mail.gmail.com> (raw)
In-Reply-To: <YOXnF4BBPeBEMB38@kroah.com>

On Wed, Jul 7, 2021 at 10:40 AM Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> On Wed, Jul 07, 2021 at 08:29:46PM +0300, Adrian Hunter wrote:
> > Hi
> >
> > There is an issue with the SCSI UFS driver when the optional
> > BOOT well-known LUN fails to probe, which is not a fatal error.
> > The issue is that the device and its "managed" device link do not
> > then get deleted.  The device because the device link has a
> > reference to it.  The device link because it can only be deleted
> > by device_del(), but device_add() was never called, so device_del()
> > never will be either.
>
> How was a link created for something that never had device_add() called
> on it?  Who is doing that?
>

Greg responded as I was typing :)

Nak for the series. I don't like mixing and matching the control of
managed device links like this.

Can I get more details please. How is the device link added in the first place?

-Saravana

      reply	other threads:[~2021-07-07 17:42 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-07 17:29 Adrian Hunter
2021-07-07 17:29 ` [PATCH RFC 1/2] " Adrian Hunter
2021-07-07 17:38   ` Greg Kroah-Hartman
2021-07-07 17:29 ` [PATCH RFC 2/2] scsi: ufshcd: Fix device links when BOOT WLUN fails to probe Adrian Hunter
2021-07-07 17:39   ` Greg Kroah-Hartman
2021-07-07 17:49     ` Adrian Hunter
2021-07-08 12:31       ` Rafael J. Wysocki
2021-07-08 14:17         ` Adrian Hunter
2021-07-08 15:03           ` Rafael J. Wysocki
2021-07-08 15:12             ` Rafael J. Wysocki
2021-07-08 16:02               ` Adrian Hunter
2021-07-08 16:45           ` Saravana Kannan
2021-07-08 16:48             ` Rafael J. Wysocki
2021-07-08 16:57               ` Saravana Kannan
2021-07-08 17:39                 ` Rafael J. Wysocki
2021-07-07 17:40 ` [PATCH RFC 0/2] driver core: Add ability to delete device links of unregistered devices Greg Kroah-Hartman
2021-07-07 17:41   ` Saravana Kannan [this message]

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