linux-kernel - [PATCH v4 0/8] driver core: class: Fix bug and code improvements for class APIs

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Message-Id: <20241218-class_fix-v4-0-3c40f098356b@quicinc.com>
Date: Wed, 18 Dec 2024 08:01:30 +0800
From: Zijun Hu <zijun_hu@...oud.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, Tejun Heo <tj@...nel.org>, 
 Josef Bacik <josef@...icpanda.com>, Jens Axboe <axboe@...nel.dk>, 
 Boris Burkov <boris@....io>, Davidlohr Bueso <dave@...olabs.net>, 
 Jonathan Cameron <jonathan.cameron@...wei.com>, 
 Dave Jiang <dave.jiang@...el.com>, 
 Alison Schofield <alison.schofield@...el.com>, 
 Vishal Verma <vishal.l.verma@...el.com>, Ira Weiny <ira.weiny@...el.com>, 
 Dan Williams <dan.j.williams@...el.com>
Cc: Zijun Hu <zijun_hu@...oud.com>, linux-kernel@...r.kernel.org, 
 cgroups@...r.kernel.org, linux-block@...r.kernel.org, 
 linux-cxl@...r.kernel.org, Zijun Hu <quic_zijuhu@...cinc.com>, 
 Michal Koutný <mkoutny@...e.com>, stable@...r.kernel.org, 
 Fan Ni <fan.ni@...sung.com>, Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: [PATCH v4 0/8] driver core: class: Fix bug and code improvements
 for class APIs

This patch series is to fix bugs and improve codes regarding various
driver core device iterating APIs

Signed-off-by: Zijun Hu <quic_zijuhu@...cinc.com>
---
Changes in v4:
- Squich patches 3-5 into one based on Jonathan and Fan comments.
- Add one more patch 
- Link to v3: https://lore.kernel.org/r/20241212-class_fix-v3-0-04e20c4f0971@quicinc.com

Changes in v3:
- Correct commit message, add fix tag, and correct pr_crit() message for 1st patch
- Add more patches regarding driver core device iterating APIs.
- Link to v2: https://lore.kernel.org/r/20241112-class_fix-v2-0-73d198d0a0d5@quicinc.com

Changes in v2:
- Remove both fix and stable tag for patch 1/3
- drop patch 3/3
- Link to v1: https://lore.kernel.org/r/20241105-class_fix-v1-0-80866f9994a5@quicinc.com

---
Zijun Hu (8):
      driver core: class: Fix wild pointer dereferences in API class_dev_iter_next()
      blk-cgroup: Fix class @block_class's subsystem refcount leakage
      driver core: Move true expression out of if condition in 3 device finding APIs
      driver core: Rename declaration parameter name for API device_find_child() cluster
      driver core: Correct parameter check for API device_for_each_child_reverse_from()
      driver core: Correct API device_for_each_child_reverse_from() prototype
      driver core: Introduce device_iter_t for device iterating APIs
      driver core: Move 2 one line device finding APIs to header

 block/blk-cgroup.c            |  1 +
 drivers/base/bus.c            |  9 +++++---
 drivers/base/class.c          | 11 ++++++++--
 drivers/base/core.c           | 49 +++++++++----------------------------------
 drivers/base/driver.c         |  9 +++++---
 drivers/cxl/core/hdm.c        |  2 +-
 drivers/cxl/core/region.c     |  2 +-
 include/linux/device.h        | 28 ++++++++++++++++---------
 include/linux/device/bus.h    |  7 +++++--
 include/linux/device/class.h  |  4 ++--
 include/linux/device/driver.h |  2 +-
 11 files changed, 60 insertions(+), 64 deletions(-)
---
base-commit: cdd30ebb1b9f36159d66f088b61aee264e649d7a
change-id: 20241104-class_fix-f176bd9eba22
prerequisite-change-id: 20241201-const_dfc_done-aaec71e3bbea:v4
prerequisite-patch-id: 536aa56c0d055f644a1f71ab5c88b7cac9510162
prerequisite-patch-id: 39b0cf088c72853d9ce60c9e633ad2070a0278a8
prerequisite-patch-id: 60b22c42b67ad56a3d2a7b80a30ad588cbe740ec
prerequisite-patch-id: 119a167d7248481987b5e015db0e4fdb0d6edab8
prerequisite-patch-id: 133248083f3d3c57beb16473c2a4c62b3abc5fd0
prerequisite-patch-id: 4cda541f55165650bfa69fb19cbe0524eff0cb85
prerequisite-patch-id: 2b4193c6ea6370c07e6b66de04be89fb09448f54
prerequisite-patch-id: 73c675db18330c89fd8ca4790914d1d486ce0db8
prerequisite-patch-id: 88c50fc851fd7077797fd4e63fb12966b1b601bd
prerequisite-patch-id: 47b93916c1b5fb809d7c99aeaa05c729b1af01c5
prerequisite-patch-id: 52ffb42b5aae69cae708332e0ddc7016139999f1

Best regards,
-- 
Zijun Hu <quic_zijuhu@...cinc.com>