Commit 556eb8b7 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 

Pull driver core updates from Greg KH:
 "Here is the large set of driver core changes for 6.4-rc1.

  Once again, a busy development cycle, with lots of changes happening
  in the driver core in the quest to be able to move "struct bus" and
  "struct class" into read-only memory, a task now complete with these
  changes.

  This will make the future rust interactions with the driver core more
  "provably correct" as well as providing more obvious lifetime rules
  for all busses and classes in the kernel.

  The changes required for this did touch many individual classes and
  busses as many callbacks were changed to take const * parameters
  instead. All of these changes have been submitted to the various
  subsystem maintainers, giving them plenty of time to review, and most
  of them actually did so.

  Other than those changes, included in here are a small set of other
  things:

   - kobject logging improvements

   - cacheinfo improvements and updates

   - obligatory fw_devlink updates and fixes

   - documentation updates

   - device property cleanups and const * changes

   - firwmare loader dependency fixes.

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (120 commits)
  device property: make device_property functions take const device *
  driver core: update comments in device_rename()
  driver core: Don't require dynamic_debug for initcall_debug probe timing
  firmware_loader: rework crypto dependencies
  firmware_loader: Strip off \n from customized path
  zram: fix up permission for the hot_add sysfs file
  cacheinfo: Add use_arch[|_cache]_info field/function
  arch_topology: Remove early cacheinfo error message if -ENOENT
  cacheinfo: Check cache properties are present in DT
  cacheinfo: Check sib_leaf in cache_leaves_are_shared()
  cacheinfo: Allow early level detection when DT/ACPI info is missing/broken
  cacheinfo: Add arm64 early level initializer implementation
  cacheinfo: Add arch specific early level initializer
  tty: make tty_class a static const structure
  driver core: class: remove struct class_interface * from callbacks
  driver core: class: mark the struct class in struct class_interface constant
  driver core: class: make class_register() take a const *
  driver core: class: mark class_release() as taking a const *
  driver core: remove incorrect comment for device_create*
  MIPS: vpe-cmp: remove module owner pointer from struct class usage.
  ...
parents 97b2ff29 046b6a17

Documentation/ABI/testing/sysfs-devices-state_synced

+5 −0
Original line number Diff line number Diff line
@@ -21,4 +21,9 @@ Description: 
		at the time the kernel starts are not affected or limited in

		any way by sync_state() callbacks.



		Writing "1" to this file will force a call to the device's

		sync_state() function if it hasn't been called already. The

		sync_state() call happens independent of the state of the

		consumer devices.

Documentation/admin-guide/kernel-parameters.txt

+14 −9
Original line number Diff line number Diff line
@@ -1602,6 +1602,20 @@ 
			dependencies. This only applies for fw_devlink=on|rpm.

			Format: <bool>



	fw_devlink.sync_state =

			[KNL] When all devices that could probe have finished

			probing, this parameter controls what to do with

			devices that haven't yet received their sync_state()

			calls.

			Format: { strict | timeout }

			strict -- Default. Continue waiting on consumers to

				probe successfully.

			timeout -- Give up waiting on consumers and call

				sync_state() on any devices that haven't yet

				received their sync_state() calls after

				deferred_probe_timeout has expired or by

				late_initcall() if !CONFIG_MODULES.



	gamecon.map[2|3]=

			[HW,JOY] Multisystem joystick and NES/SNES/PSX pad

			support via parallel port (up to 5 devices per port)
@@ -6150,15 +6164,6 @@ 
			later by a loaded module cannot be set this way.

			Example: sysctl.vm.swappiness=40



	sysfs.deprecated=0|1 [KNL]

			Enable/disable old style sysfs layout for old udev

			on older distributions. When this option is enabled

			very new udev will not work anymore. When this option

			is disabled (or CONFIG_SYSFS_DEPRECATED not compiled)

			in older udev will not work anymore.

			Default depends on CONFIG_SYSFS_DEPRECATED_V2 set in

			the kernel configuration.



	sysrq_always_enabled

			[KNL]

			Ignore sysrq setting - this boot parameter will

Documentation/driver-api/driver-model/bus.rst

+2 −2
Original line number Diff line number Diff line
@@ -125,8 +125,8 @@ Exporting Attributes 


  struct bus_attribute {

	struct attribute	attr;

	ssize_t (*show)(struct bus_type *, char * buf);

	ssize_t (*store)(struct bus_type *, const char * buf, size_t count);

	ssize_t (*show)(const struct bus_type *, char * buf);

	ssize_t (*store)(const struct bus_type *, const char * buf, size_t count);

  };



Bus drivers can export attributes using the BUS_ATTR_RW macro that works

Documentation/driver-api/firmware/fw_upload.rst

+2 −1
Original line number Diff line number Diff line
@@ -57,7 +57,8 @@ function calls firmware_upload_unregister() such as:: 
		len = (truncate) ? truncate - fw_name : strlen(fw_name);

		sec->fw_name = kmemdup_nul(fw_name, len, GFP_KERNEL);



		fwl = firmware_upload_register(sec->dev, sec->fw_name, &m10bmc_ops, sec);

		fwl = firmware_upload_register(THIS_MODULE, sec->dev, sec->fw_name,

					       &m10bmc_ops, sec);

		if (IS_ERR(fwl)) {

			dev_err(sec->dev, "Firmware Upload driver failed to start\n");

			kfree(sec->fw_name);

Documentation/filesystems/sysfs.rst

+2 −2
Original line number Diff line number Diff line
@@ -373,8 +373,8 @@ Structure:: 


    struct bus_attribute {

	    struct attribute        attr;

	    ssize_t (*show)(struct bus_type *, char * buf);

	    ssize_t (*store)(struct bus_type *, const char * buf, size_t count);

	    ssize_t (*show)(const struct bus_type *, char * buf);

	    ssize_t (*store)(const struct bus_type *, const char * buf, size_t count);

    };



Declaring::