linux-kernel - [PATCH v3 0/4] Make fw_devlink=on more forgiving

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Message-Id: <20210204223921.1693487-1-saravanak@google.com>
Date:   Thu,  4 Feb 2021 14:39:17 -0800
From:   Saravana Kannan <saravanak@...gle.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Len Brown <lenb@...nel.org>, Jonathan Corbet <corbet@....net>
Cc:     Saravana Kannan <saravanak@...gle.com>, kernel-team@...roid.com,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-acpi@...r.kernel.org,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Marc Zyngier <maz@...nel.org>,
        Tudor Ambarus <Tudor.Ambarus@...rochip.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Martin Kaiser <martin@...ser.cx>
Subject: [PATCH v3 0/4] Make fw_devlink=on more forgiving

I dropped a few patches from v2 of the series that are still work in
progress. So v3 of the series only includes definitive patches and the
patch numbering has changed.

Patch 1/4 and 2/4 addresses the issue of firmware nodes that look like
they'll have struct devices created for them, but will never actually
have struct devices added for them. For example, DT nodes with a
compatible property that don't have devices added for them.

Patch 3/4 and 4/4 allow for handling optional DT bindings.

v1 -> v2:
Patch 1: Added a flag to fwnodes that aren't devices.
Patch 3: New patch to ise the flag set in patch 1 to not create bad links.

v2 -> v3:
- Patch 1: Added Rafael's Ack
- New patches 3 and 4

Saravana Kannan (4):
  driver core: fw_devlink: Detect supplier devices that will never be
    added
  of: property: Don't add links to absent suppliers
  driver core: Add fw_devlink.strict kernel param
  of: property: Add fw_devlink support for optional properties

 .../admin-guide/kernel-parameters.txt         |  5 +++
 drivers/base/core.c                           | 43 +++++++++++++++++--
 drivers/of/property.c                         | 16 +++++--
 include/linux/fwnode.h                        |  3 ++
 4 files changed, 60 insertions(+), 7 deletions(-)

-- 
2.30.0.365.g02bc693789-goog