From: Adrian Hunter <firstname.lastname@example.org> To: "Rafael J . Wysocki" <email@example.com> Cc: Greg Kroah-Hartman <firstname.lastname@example.org>, Saravana Kannan <email@example.com>, "Martin K . Petersen" <firstname.lastname@example.org>, "James E . J . Bottomley" <email@example.com>, firstname.lastname@example.org, Avri Altman <email@example.com>, Bean Huo <firstname.lastname@example.org>, Can Guo <email@example.com>, Asutosh Das <firstname.lastname@example.org>, Bart Van Assche <email@example.com>, firstname.lastname@example.org, email@example.com Subject: [PATCH V3 0/3] driver core: Add ability to delete device links of unregistered devices Date: Sat, 10 Jul 2021 13:38:16 +0300 [thread overview] Message-ID: <firstname.lastname@example.org> (raw) 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. Since V2, these patches fix the issue by amending device link removal to accept removal of a link with an unregistered consumer device, as suggested by Rafael. Changes in V3: driver core: Prevent warning when removing a device link from unregistered consumer New patch split from "driver core: Add ability to delete device links of unregistered devices" except first chunk from that patch dropped as unnecessary driver core: Add ability to delete device links of unregistered devices Move warning fix to separate patch. Changes in V2: Take approach suggested by Rafael Adrian Hunter (3): driver core: Prevent warning when removing a device link from unregistered consumer driver core: Add ability to delete device links of unregistered devices scsi: ufshcd: Fix device links when BOOT WLUN fails to probe drivers/base/core.c | 8 ++++++-- drivers/scsi/ufs/ufshcd.c | 23 +++++++++++++++++++++-- 2 files changed, 27 insertions(+), 4 deletions(-) Regards Adrian
next reply other threads:[~2021-07-10 10:38 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-07-10 10:38 Adrian Hunter [this message] 2021-07-10 10:38 ` [PATCH V3 1/3] driver core: Prevent warning when removing a device link from unregistered consumer Adrian Hunter 2021-07-10 15:19 ` Greg Kroah-Hartman 2021-07-14 18:21 ` Rafael J. Wysocki 2021-07-14 18:22 ` Rafael J. Wysocki 2021-07-10 10:38 ` [PATCH V3 2/3] driver core: Add ability to delete device links of unregistered devices Adrian Hunter 2021-07-14 18:26 ` Rafael J. Wysocki 2021-07-10 10:38 ` [PATCH V3 3/3] scsi: ufshcd: Fix device links when BOOT WLUN fails to probe Adrian Hunter
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --email@example.com \ --firstname.lastname@example.org \ --email@example.com \ --firstname.lastname@example.org \ --email@example.com \ --firstname.lastname@example.org \ --email@example.com \ --firstname.lastname@example.org \ --email@example.com \ --firstname.lastname@example.org \ --email@example.com \ --firstname.lastname@example.org \ --email@example.com \ --firstname.lastname@example.org \ --email@example.com \ --subject='Re: [PATCH V3 0/3] driver core: Add ability to delete device links of unregistered devices' \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: link
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for NNTP newsgroup(s).