linux-kernel - [GIT PULL] IPMI bug fixes for 6.18

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Message-ID: <aNrKnJ5GNGkf-yqv@mail.minyard.net>
Date: Mon, 29 Sep 2025 13:06:20 -0500
From: Corey Minyard <corey@...yard.net>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel <linux-kernel@...r.kernel.org>,
	openipmi-developer@...ts.sourceforge.net
Subject: [GIT PULL] IPMI bug fixes for 6.18

The following changes since commit 6e64f4580381e32c06ee146ca807c555b8f73e24:

  Merge tag 'input-for-v6.17-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input (2025-08-07 07:40:01 +0300)

are available in the Git repository at:

  https://github.com/cminyard/linux-ipmi.git tags/for-linus-6.18-1

for you to fetch changes up to d46651d4e3c0caab554c4c591c0b6c3b026b1e93:

  ipmi: Add Loongson-2K BMC support (2025-09-16 10:15:54 -0500)

----------------------------------------------------------------
Bug fixes and enhancements for IPMI

This request fixes a number of small bugs, but has some more major
changes:

Loongson-2K BMC support is added.  This is an MFD device and is
dependent on the changes coming from that tree.  There is a
conflict in the MAINTAINERS file and the MFD tree changes must be
there before this is applied.

The way the driver handles BMCs that have become non-functional
has been completely redone.  A number of changes in the past have
attempted to handle various issues around this, but nothing has
been very good.  After working with some people on this, the
code has been reworked to disable the driver and fail all
pending operations if the BMC becomes non functional. It will
retry the BMC once a second to see if it's back up.

-corey

----------------------------------------------------------------
Binbin Zhou (1):
      ipmi: Add Loongson-2K BMC support

Corey Minyard (12):
      ipmi:msghandler:Change seq_lock to a mutex
      Revert "ipmi: fix msg stack when IPMI is disconnected"
      ipmi: Rework user message limit handling
      ipmi: Differentiate between reset and firmware update in maintenance
      ipmi: Disable sysfs access and requests in maintenance mode
      ipmi: Add a maintenance mode sysfs file
      ipmi: Set a timer for maintenance mode
      ipmi:si: Merge some if statements
      ipmi:si: Move flags get start to its own function
      ipmi: Allow an SMI sender to return an error
      ipmi: Rename "user_data" to "recv_msg" in an SMI message
      ipmi:si: Gracefully handle if the BMC is non-functional

Rob Herring (Arm) (1):
      dt-bindings: ipmi: aspeed,ast2400-kcs-bmc: Add missing "clocks" property

 .../bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml      |   3 +
 drivers/char/ipmi/Kconfig                          |   7 +
 drivers/char/ipmi/Makefile                         |   1 +
 drivers/char/ipmi/ipmi_ipmb.c                      |   4 +-
 drivers/char/ipmi/ipmi_kcs_sm.c                    |  16 +-
 drivers/char/ipmi/ipmi_msghandler.c                | 605 +++++++++++----------
 drivers/char/ipmi/ipmi_powernv.c                   |  17 +-
 drivers/char/ipmi/ipmi_si.h                        |   7 +
 drivers/char/ipmi/ipmi_si_intf.c                   |  74 ++-
 drivers/char/ipmi/ipmi_si_ls2k.c                   | 189 +++++++
 drivers/char/ipmi/ipmi_ssif.c                      |   4 +-
 include/linux/ipmi_smi.h                           |  11 +-
 12 files changed, 600 insertions(+), 338 deletions(-)
 create mode 100644 drivers/char/ipmi/ipmi_si_ls2k.c