linux-kernel - [PATCH v2 0/2] fix DT overlays when device links are released

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Message-Id: <20240205-fix-device-links-overlays-v2-0-5344f8c79d57@analog.com>
Date: Mon, 05 Feb 2024 13:09:31 +0100
From: Nuno Sa via B4 Relay <devnull+nuno.sa.analog.com@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, 
 Frank Rowand <frowand.list@...il.com>, Rob Herring <robh+dt@...nel.org>, 
 Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, 
 Daniel Scally <djrscally@...il.com>, 
 Heikki Krogerus <heikki.krogerus@...ux.intel.com>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>, Len Brown <lenb@...nel.org>
Cc: linux-acpi@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org
Subject: [PATCH v2 0/2] fix DT overlays when device links are released

Link to RFC:
 * https://lore.kernel.org/lkml/20240123-fix-device-links-overlays-v1-1-9e4f6acaab6c@analog.com/

v1:
 * https://lore.kernel.org/r/20240202-fix-device-links-overlays-v1-0-f9fd1404c8e2@analog.com

Changes in v2:
 * Don't error out in case alloc_workqueue() fails. Devlinks can still
   work and we'll then release them synchronously.

I'm pasting again the link of the first time I exposed the issue where
one can see the resulps (big splat) of failing DT assumption:

https://lore.kernel.org/linux-devicetree/20230511151047.1779841-1-nuno.sa@analog.com/

---
Nuno Sa (2):
      driver: core: add dedicated workqueue for devlink removal
      of: dynamic: flush devlinks workqueue before destroying the changeset

 drivers/base/core.c    | 32 ++++++++++++++++++++++++++++----
 drivers/of/dynamic.c   |  8 ++++++++
 include/linux/fwnode.h |  1 +
 3 files changed, 37 insertions(+), 4 deletions(-)
---
base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d
change-id: 20240123-fix-device-links-overlays-5422e033a09b
--

Thanks!
- Nuno Sá