linux-kernel - [PATCH 0/5] driver core: class: allow struct class to be static

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Message-Id: <2023040244-duffel-pushpin-f738@gregkh>
Date:   Sun,  2 Apr 2023 19:58:45 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     rafael@...nel.org, Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH 0/5] driver core: class: allow struct class to be static

There's been a semi-slow drip of driver core struct class changes
recently, and here's the final bit to the core that makes it possible
for 'struct class' to be moved into read-only memory.  And as proof, the
last patch in the series does just that for the tty classes.

After this series, there's some tree-wide cleanups needed to move away
from the class_create() api back to class_register() to move the
structures into read-only memory.  The class_create() api was a good
idea when it was created (as struct class was a dynamic structure), but
that got changed a long time ago and that's not necessary anymore.  But
that can wait for after 6.4-rc1 is out as they can all go through the
different relevant subsystems if wanted.

All of these apply on top of my latest driver-core.git driver-core-next
branch (or linux-next), as they require the current set of struct class
and struct bus_type reworks and have been tested locally (I'm typing
this and will send them out on a kernel running these changes).

Greg Kroah-Hartman (5):
  driver core: class: mark class_release() as taking a const *
  driver core: class: make class_register() take a const *
  driver core: class: mark the struct class in struct class_interface
    constant
  driver core: class: remove struct class_interface * from callbacks
  tty: make tty_class a static const structure

 drivers/base/base.h                      |  2 +-
 drivers/base/class.c                     | 14 +++++++-------
 drivers/base/core.c                      | 10 ++++------
 drivers/hwmon/drivetemp.c                |  4 ++--
 drivers/net/rionet.c                     |  3 +--
 drivers/ntb/hw/mscc/ntb_hw_switchtec.c   |  6 ++----
 drivers/pcmcia/cs.c                      |  2 +-
 drivers/pcmcia/ds.c                      |  6 ++----
 drivers/pcmcia/rsrc_nonstatic.c          |  6 ++----
 drivers/rapidio/devices/rio_mport_cdev.c |  7 ++-----
 drivers/rapidio/rio_cm.c                 |  8 ++------
 drivers/scsi/ses.c                       |  6 ++----
 drivers/scsi/sg.c                        |  8 ++++----
 drivers/tty/pty.c                        |  2 +-
 drivers/tty/tty_io.c                     | 24 +++++++++++-------------
 drivers/tty/vt/vt.c                      |  2 +-
 include/linux/device/class.h             | 10 +++++-----
 include/linux/tty.h                      |  2 +-
 kernel/time/alarmtimer.c                 |  3 +--
 19 files changed, 52 insertions(+), 73 deletions(-)

-- 
2.40.0