<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/drivers/usb/core, branch v6.4-rc2</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>Merge tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core</title>
<updated>2023-04-27T18:53:57+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2023-04-27T18:53:57+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=556eb8b79190151506187bf0b16dda423c34d9a8'/>
<id>556eb8b79190151506187bf0b16dda423c34d9a8</id>
<content type='text'>
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.
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
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.
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'usb-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb</title>
<updated>2023-04-27T18:42:11+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2023-04-27T18:42:11+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=4010e62b5b684d7a6090f3f9c69f8a5be31910e5'/>
<id>4010e62b5b684d7a6090f3f9c69f8a5be31910e5</id>
<content type='text'>
Pull USB / Thunderbolt updates from Greg KH:
 "Here is the large set of USB and Thunderbolt changes for 6.4-rc1.

  The "biggest" thing in here is the removal of two obsolete drivers,
  u132-hcd and ftdi-elan, making this a net-removal of code overall.

  Other than the driver removals, included in here are:

   - Thunderbolt updates for new hardware and features

   - xhci driver updates and fixes

   - dwc3 driver updates and fixes

   - gadget core and driver updates and features added

   - mtu3 driver updates

   - dwc2 driver fixes and updates

   - usb-serial driver updates

   - typec driver updates and fixes

   - platform remove callback changes

   - dts updates and conversions

   - other small changes

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

* tag 'usb-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (177 commits)
  usb: dwc3: gadget: Refactor EP0 forced stall/restart into a separate API
  usb: dwc3: gadget: Execute gadget stop after halting the controller
  media: radio-shark: Add endpoint checks
  USB: sisusbvga: Add endpoint checks
  USB: core: Add routines for endpoint checks in old drivers
  usb: dwc3: gadget: Stall and restart EP0 if host is unresponsive
  dt-bindings: usb: snps,dwc3: Add 'snps,parkmode-disable-hs-quirk' quirk
  usb: dwc3: core: add support for disabling High-speed park mode
  dt-bindings: usb: ci-hdrc-usb2: allow multiple PHYs
  usb: mtu3: add optional clock xhci_ck and frmcnt_ck
  dt-bindings: usb: mtu3: add two optional clocks
  usb: mtu3: expose role-switch control to userspace
  usb: mtu3: unlock @mtu-&gt;lock just before giving back request
  usb: mtu3: fix kernel panic at qmu transfer done irq handler
  usb: mtu3: use boolean return value
  usb: mtu3: give back request when rx error happens
  usb: chipidea: fix missing goto in `ci_hdrc_probe`
  usb: gadget: udc: core: Prevent redundant calls to pullup
  usb: gadget: udc: core: Invoke usb_gadget_connect only when started
  usb: typec: ucsi: don't print PPM init deferred errors
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull USB / Thunderbolt updates from Greg KH:
 "Here is the large set of USB and Thunderbolt changes for 6.4-rc1.

  The "biggest" thing in here is the removal of two obsolete drivers,
  u132-hcd and ftdi-elan, making this a net-removal of code overall.

  Other than the driver removals, included in here are:

   - Thunderbolt updates for new hardware and features

   - xhci driver updates and fixes

   - dwc3 driver updates and fixes

   - gadget core and driver updates and features added

   - mtu3 driver updates

   - dwc2 driver fixes and updates

   - usb-serial driver updates

   - typec driver updates and fixes

   - platform remove callback changes

   - dts updates and conversions

   - other small changes

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

* tag 'usb-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (177 commits)
  usb: dwc3: gadget: Refactor EP0 forced stall/restart into a separate API
  usb: dwc3: gadget: Execute gadget stop after halting the controller
  media: radio-shark: Add endpoint checks
  USB: sisusbvga: Add endpoint checks
  USB: core: Add routines for endpoint checks in old drivers
  usb: dwc3: gadget: Stall and restart EP0 if host is unresponsive
  dt-bindings: usb: snps,dwc3: Add 'snps,parkmode-disable-hs-quirk' quirk
  usb: dwc3: core: add support for disabling High-speed park mode
  dt-bindings: usb: ci-hdrc-usb2: allow multiple PHYs
  usb: mtu3: add optional clock xhci_ck and frmcnt_ck
  dt-bindings: usb: mtu3: add two optional clocks
  usb: mtu3: expose role-switch control to userspace
  usb: mtu3: unlock @mtu-&gt;lock just before giving back request
  usb: mtu3: fix kernel panic at qmu transfer done irq handler
  usb: mtu3: use boolean return value
  usb: mtu3: give back request when rx error happens
  usb: chipidea: fix missing goto in `ci_hdrc_probe`
  usb: gadget: udc: core: Prevent redundant calls to pullup
  usb: gadget: udc: core: Invoke usb_gadget_connect only when started
  usb: typec: ucsi: don't print PPM init deferred errors
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: core: Add routines for endpoint checks in old drivers</title>
<updated>2023-04-20T09:43:22+00:00</updated>
<author>
<name>Alan Stern</name>
<email>stern@rowland.harvard.edu</email>
</author>
<published>2023-04-10T19:37:07+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=13890626501ffda22b18213ddaf7930473da5792'/>
<id>13890626501ffda22b18213ddaf7930473da5792</id>
<content type='text'>
Many of the older USB drivers in the Linux USB stack were written
based simply on a vendor's device specification.  They use the
endpoint information in the spec and assume these endpoints will
always be present, with the properties listed, in any device matching
the given vendor and product IDs.

While that may have been true back then, with spoofing and fuzzing it
is not true any more.  More and more we are finding that those old
drivers need to perform at least a minimum of checking before they try
to use any endpoint other than ep0.

To make this checking as simple as possible, we now add a couple of
utility routines to the USB core.  usb_check_bulk_endpoints() and
usb_check_int_endpoints() take an interface pointer together with a
list of endpoint addresses (numbers and directions).  They check that
the interface's current alternate setting includes endpoints with
those addresses and that each of these endpoints has the right type:
bulk or interrupt, respectively.

Although we already have usb_find_common_endpoints() and related
routines meant for a similar purpose, they are not well suited for
this kind of checking.  Those routines find endpoints of various
kinds, but only one (either the first or the last) of each kind, and
they don't verify that the endpoints' addresses agree with what the
caller expects.

In theory the new routines could be more general: They could take a
particular altsetting as their argument instead of always using the
interface's current altsetting.  In practice I think this won't matter
too much; multiple altsettings tend to be used for transferring media
(audio or visual) over isochronous endpoints, not bulk or interrupt.
Drivers for such devices will generally require more sophisticated
checking than these simplistic routines provide.

Signed-off-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Link: https://lore.kernel.org/r/dd2c8e8c-2c87-44ea-ba17-c64b97e201c9@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Many of the older USB drivers in the Linux USB stack were written
based simply on a vendor's device specification.  They use the
endpoint information in the spec and assume these endpoints will
always be present, with the properties listed, in any device matching
the given vendor and product IDs.

While that may have been true back then, with spoofing and fuzzing it
is not true any more.  More and more we are finding that those old
drivers need to perform at least a minimum of checking before they try
to use any endpoint other than ep0.

To make this checking as simple as possible, we now add a couple of
utility routines to the USB core.  usb_check_bulk_endpoints() and
usb_check_int_endpoints() take an interface pointer together with a
list of endpoint addresses (numbers and directions).  They check that
the interface's current alternate setting includes endpoints with
those addresses and that each of these endpoints has the right type:
bulk or interrupt, respectively.

Although we already have usb_find_common_endpoints() and related
routines meant for a similar purpose, they are not well suited for
this kind of checking.  Those routines find endpoints of various
kinds, but only one (either the first or the last) of each kind, and
they don't verify that the endpoints' addresses agree with what the
caller expects.

In theory the new routines could be more general: They could take a
particular altsetting as their argument instead of always using the
interface's current altsetting.  In practice I think this won't matter
too much; multiple altsettings tend to be used for transferring media
(audio or visual) over isochronous endpoints, not bulk or interrupt.
Drivers for such devices will generally require more sophisticated
checking than these simplistic routines provide.

Signed-off-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Link: https://lore.kernel.org/r/dd2c8e8c-2c87-44ea-ba17-c64b97e201c9@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: core: Fix docs warning caused by wireless_status feature</title>
<updated>2023-04-06T15:14:14+00:00</updated>
<author>
<name>Bastien Nocera</name>
<email>hadess@hadess.net</email>
</author>
<published>2023-04-05T09:27:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=539adfedbd2d5cda2f9e2d83b35b364834b67d58'/>
<id>539adfedbd2d5cda2f9e2d83b35b364834b67d58</id>
<content type='text'>
Fix wrongly named 'dev' parameter in doc block, should have been iface:
drivers/usb/core/message.c:1939: warning: Function parameter or member 'iface' not described in 'usb_set_wireless_status'
drivers/usb/core/message.c:1939: warning: Excess function parameter 'dev' description in 'usb_set_wireless_status'

And fix missing struct member doc in kernel API, and reorder to
match struct:
include/linux/usb.h:270: warning: Function parameter or member 'wireless_status_work' not described in 'usb_interface'

Reported-by: Stephen Rothwell &lt;sfr@canb.auug.org.au&gt;
Link: https://lore.kernel.org/linux-next/20230405114807.5a57bf46@canb.auug.org.au/T/#t
Fixes: 0a4db185f078 ("USB: core: Add API to change the wireless_status")
Signed-off-by: Bastien Nocera &lt;hadess@hadess.net&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Link: https://lore.kernel.org/r/20230405092754.36579-1-hadess@hadess.net
[bentiss: fix checkpatch warning]
Signed-off-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Fix wrongly named 'dev' parameter in doc block, should have been iface:
drivers/usb/core/message.c:1939: warning: Function parameter or member 'iface' not described in 'usb_set_wireless_status'
drivers/usb/core/message.c:1939: warning: Excess function parameter 'dev' description in 'usb_set_wireless_status'

And fix missing struct member doc in kernel API, and reorder to
match struct:
include/linux/usb.h:270: warning: Function parameter or member 'wireless_status_work' not described in 'usb_interface'

Reported-by: Stephen Rothwell &lt;sfr@canb.auug.org.au&gt;
Link: https://lore.kernel.org/linux-next/20230405114807.5a57bf46@canb.auug.org.au/T/#t
Fixes: 0a4db185f078 ("USB: core: Add API to change the wireless_status")
Signed-off-by: Bastien Nocera &lt;hadess@hadess.net&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Link: https://lore.kernel.org/r/20230405092754.36579-1-hadess@hadess.net
[bentiss: fix checkpatch warning]
Signed-off-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: core: Add API to change the wireless_status</title>
<updated>2023-04-03T11:30:32+00:00</updated>
<author>
<name>Bastien Nocera</name>
<email>hadess@hadess.net</email>
</author>
<published>2023-03-02T10:55:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=0a4db185f0788dfc828512d0004c468921bf6c0a'/>
<id>0a4db185f0788dfc828512d0004c468921bf6c0a</id>
<content type='text'>
This adds the API that allows device specific drivers to tell user-space
about whether the wireless device is connected to its receiver dongle.

See "USB: core: Add wireless_status sysfs attribute" for a detailed
explanation of what this attribute should be used for.

Signed-off-by: Bastien Nocera &lt;hadess@hadess.net&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Link: https://lore.kernel.org/r/20230302105555.51417-5-hadess@hadess.net
Signed-off-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This adds the API that allows device specific drivers to tell user-space
about whether the wireless device is connected to its receiver dongle.

See "USB: core: Add wireless_status sysfs attribute" for a detailed
explanation of what this attribute should be used for.

Signed-off-by: Bastien Nocera &lt;hadess@hadess.net&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Link: https://lore.kernel.org/r/20230302105555.51417-5-hadess@hadess.net
Signed-off-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: core: Add wireless_status sysfs attribute</title>
<updated>2023-04-03T11:30:08+00:00</updated>
<author>
<name>Bastien Nocera</name>
<email>hadess@hadess.net</email>
</author>
<published>2023-03-02T10:55:53+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=f98e0640c5c6b8bb00336dae8d06ede862754c28'/>
<id>f98e0640c5c6b8bb00336dae8d06ede862754c28</id>
<content type='text'>
Add a wireless_status sysfs attribute to USB devices to keep track of
whether a USB device that's comprised of a receiver dongle and an emitter
device over a, most of the time proprietary, wireless link has its emitter
connected or disconnected.

This will be used by user-space OS components to determine whether the
battery-powered part of the device is wirelessly connected or not,
allowing, for example:
- upower to hide the battery for devices where the device is turned off
  but the receiver plugged in, rather than showing 0%, or other values
  that could be confusing to users
- Pipewire to hide a headset from the list of possible inputs or outputs
  or route audio appropriately if the headset is suddenly turned off, or
  turned on
- libinput to determine whether a keyboard or mouse is present when its
  receiver is plugged in.

This is done at the USB interface level as:
- the interface on which the wireless status is detected is sometimes
  not the same as where it could be consumed (eg. the audio interface
  on a headset dongle will still appear even if the headset is turned
  off), and we cannot have synchronisation of status across subsystems.
- this behaviour is not specific to HID devices, even if the protocols
  used to determine whether or not the remote device is connected can
  be HID.

This is not an attribute that is meant to replace protocol specific
APIs, such as the ones available for WWAN, WLAN/Wi-Fi, or Bluetooth
or any other sort of networking, but solely for wireless devices with
an ad-hoc “lose it and your device is e-waste” receiver dongle.

The USB interface will only be exporting the wireless_status sysfs
attribute if it gets set through the API exported in the next commit.

Signed-off-by: Bastien Nocera &lt;hadess@hadess.net&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Link: https://lore.kernel.org/r/20230302105555.51417-4-hadess@hadess.net
Signed-off-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Add a wireless_status sysfs attribute to USB devices to keep track of
whether a USB device that's comprised of a receiver dongle and an emitter
device over a, most of the time proprietary, wireless link has its emitter
connected or disconnected.

This will be used by user-space OS components to determine whether the
battery-powered part of the device is wirelessly connected or not,
allowing, for example:
- upower to hide the battery for devices where the device is turned off
  but the receiver plugged in, rather than showing 0%, or other values
  that could be confusing to users
- Pipewire to hide a headset from the list of possible inputs or outputs
  or route audio appropriately if the headset is suddenly turned off, or
  turned on
- libinput to determine whether a keyboard or mouse is present when its
  receiver is plugged in.

This is done at the USB interface level as:
- the interface on which the wireless status is detected is sometimes
  not the same as where it could be consumed (eg. the audio interface
  on a headset dongle will still appear even if the headset is turned
  off), and we cannot have synchronisation of status across subsystems.
- this behaviour is not specific to HID devices, even if the protocols
  used to determine whether or not the remote device is connected can
  be HID.

This is not an attribute that is meant to replace protocol specific
APIs, such as the ones available for WWAN, WLAN/Wi-Fi, or Bluetooth
or any other sort of networking, but solely for wireless devices with
an ad-hoc “lose it and your device is e-waste” receiver dongle.

The USB interface will only be exporting the wireless_status sysfs
attribute if it gets set through the API exported in the next commit.

Signed-off-by: Bastien Nocera &lt;hadess@hadess.net&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Link: https://lore.kernel.org/r/20230302105555.51417-4-hadess@hadess.net
Signed-off-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: mark all struct bus_type as const</title>
<updated>2023-03-23T12:22:00+00:00</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@linuxfoundation.org</email>
</author>
<published>2023-03-13T18:29:18+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=9d11b13402d1b80f7f3ca5061d75f15cf8002555'/>
<id>9d11b13402d1b80f7f3ca5061d75f15cf8002555</id>
<content type='text'>
Now that the driver core can properly handle constant struct bus_type,
move all of the USB subsystem struct bus_type structures as const,
placing them into read-only memory which can not be modified at runtime.

Cc: Johan Hovold &lt;johan@kernel.org&gt;
Cc: Evan Green &lt;evgreen@chromium.org&gt;
Cc: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Cc: linux-usb@vger.kernel.org
Acked-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20230313182918.1312597-36-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Now that the driver core can properly handle constant struct bus_type,
move all of the USB subsystem struct bus_type structures as const,
placing them into read-only memory which can not be modified at runtime.

Cc: Johan Hovold &lt;johan@kernel.org&gt;
Cc: Evan Green &lt;evgreen@chromium.org&gt;
Cc: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Cc: linux-usb@vger.kernel.org
Acked-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20230313182918.1312597-36-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>driver core: class: remove module * from class_create()</title>
<updated>2023-03-17T14:16:33+00:00</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@linuxfoundation.org</email>
</author>
<published>2023-03-13T18:18:35+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=1aaba11da9aa7d7d6b52a74d45b31cac118295a1'/>
<id>1aaba11da9aa7d7d6b52a74d45b31cac118295a1</id>
<content type='text'>
The module pointer in class_create() never actually did anything, and it
shouldn't have been requred to be set as a parameter even if it did
something.  So just remove it and fix up all callers of the function in
the kernel tree at the same time.

Cc: "Rafael J. Wysocki" &lt;rafael@kernel.org&gt;
Acked-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Link: https://lore.kernel.org/r/20230313181843.1207845-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The module pointer in class_create() never actually did anything, and it
shouldn't have been requred to be set as a parameter even if it did
something.  So just remove it and fix up all callers of the function in
the kernel tree at the same time.

Cc: "Rafael J. Wysocki" &lt;rafael@kernel.org&gt;
Acked-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Link: https://lore.kernel.org/r/20230313181843.1207845-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: acpi: Switch to use acpi_evaluate_dsm_typed()</title>
<updated>2023-03-16T11:15:10+00:00</updated>
<author>
<name>Andy Shevchenko</name>
<email>andriy.shevchenko@linux.intel.com</email>
</author>
<published>2023-03-10T16:41:29+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=e13a7333067e47d01f8bfcc36e300e26ab4f8bea'/>
<id>e13a7333067e47d01f8bfcc36e300e26ab4f8bea</id>
<content type='text'>
The acpi_evaluate_dsm_typed() provides a way to check the type of the
object evaluated by _DSM call. Use it instead of open coded variant.

Signed-off-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20230310164129.21937-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The acpi_evaluate_dsm_typed() provides a way to check the type of the
object evaluated by _DSM call. Use it instead of open coded variant.

Signed-off-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20230310164129.21937-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core</title>
<updated>2023-02-24T20:58:55+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2023-02-24T20:58:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=a93e884edf61f9debc9ca61ef9e545f0394ab666'/>
<id>a93e884edf61f9debc9ca61ef9e545f0394ab666</id>
<content type='text'>
Pull driver core updates from Greg KH:
 "Here is the large set of driver core changes for 6.3-rc1.

  There's a lot of changes this development cycle, most of the work
  falls into two different categories:

   - fw_devlink fixes and updates. This has gone through numerous review
     cycles and lots of review and testing by lots of different devices.
     Hopefully all should be good now, and Saravana will be keeping a
     watch for any potential regression on odd embedded systems.

   - driver core changes to work to make struct bus_type able to be
     moved into read-only memory (i.e. const) The recent work with Rust
     has pointed out a number of areas in the driver core where we are
     passing around and working with structures that really do not have
     to be dynamic at all, and they should be able to be read-only
     making things safer overall. This is the contuation of that work
     (started last release with kobject changes) in moving struct
     bus_type to be constant. We didn't quite make it for this release,
     but the remaining patches will be finished up for the release after
     this one, but the groundwork has been laid for this effort.

  Other than that we have in here:

   - debugfs memory leak fixes in some subsystems

   - error path cleanups and fixes for some never-able-to-be-hit
     codepaths.

   - cacheinfo rework and fixes

   - Other tiny fixes, full details are in the shortlog

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

[ Geert Uytterhoeven points out that that last sentence isn't true, and
  that there's a pending report that has a fix that is queued up - Linus ]

* tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (124 commits)
  debugfs: drop inline constant formatting for ERR_PTR(-ERROR)
  OPP: fix error checking in opp_migrate_dentry()
  debugfs: update comment of debugfs_rename()
  i3c: fix device.h kernel-doc warnings
  dma-mapping: no need to pass a bus_type into get_arch_dma_ops()
  driver core: class: move EXPORT_SYMBOL_GPL() lines to the correct place
  Revert "driver core: add error handling for devtmpfs_create_node()"
  Revert "devtmpfs: add debug info to handle()"
  Revert "devtmpfs: remove return value of devtmpfs_delete_node()"
  driver core: cpu: don't hand-override the uevent bus_type callback.
  devtmpfs: remove return value of devtmpfs_delete_node()
  devtmpfs: add debug info to handle()
  driver core: add error handling for devtmpfs_create_node()
  driver core: bus: update my copyright notice
  driver core: bus: add bus_get_dev_root() function
  driver core: bus: constify bus_unregister()
  driver core: bus: constify some internal functions
  driver core: bus: constify bus_get_kset()
  driver core: bus: constify bus_register/unregister_notifier()
  driver core: remove private pointer from struct bus_type
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull driver core updates from Greg KH:
 "Here is the large set of driver core changes for 6.3-rc1.

  There's a lot of changes this development cycle, most of the work
  falls into two different categories:

   - fw_devlink fixes and updates. This has gone through numerous review
     cycles and lots of review and testing by lots of different devices.
     Hopefully all should be good now, and Saravana will be keeping a
     watch for any potential regression on odd embedded systems.

   - driver core changes to work to make struct bus_type able to be
     moved into read-only memory (i.e. const) The recent work with Rust
     has pointed out a number of areas in the driver core where we are
     passing around and working with structures that really do not have
     to be dynamic at all, and they should be able to be read-only
     making things safer overall. This is the contuation of that work
     (started last release with kobject changes) in moving struct
     bus_type to be constant. We didn't quite make it for this release,
     but the remaining patches will be finished up for the release after
     this one, but the groundwork has been laid for this effort.

  Other than that we have in here:

   - debugfs memory leak fixes in some subsystems

   - error path cleanups and fixes for some never-able-to-be-hit
     codepaths.

   - cacheinfo rework and fixes

   - Other tiny fixes, full details are in the shortlog

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

[ Geert Uytterhoeven points out that that last sentence isn't true, and
  that there's a pending report that has a fix that is queued up - Linus ]

* tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (124 commits)
  debugfs: drop inline constant formatting for ERR_PTR(-ERROR)
  OPP: fix error checking in opp_migrate_dentry()
  debugfs: update comment of debugfs_rename()
  i3c: fix device.h kernel-doc warnings
  dma-mapping: no need to pass a bus_type into get_arch_dma_ops()
  driver core: class: move EXPORT_SYMBOL_GPL() lines to the correct place
  Revert "driver core: add error handling for devtmpfs_create_node()"
  Revert "devtmpfs: add debug info to handle()"
  Revert "devtmpfs: remove return value of devtmpfs_delete_node()"
  driver core: cpu: don't hand-override the uevent bus_type callback.
  devtmpfs: remove return value of devtmpfs_delete_node()
  devtmpfs: add debug info to handle()
  driver core: add error handling for devtmpfs_create_node()
  driver core: bus: update my copyright notice
  driver core: bus: add bus_get_dev_root() function
  driver core: bus: constify bus_unregister()
  driver core: bus: constify some internal functions
  driver core: bus: constify bus_get_kset()
  driver core: bus: constify bus_register/unregister_notifier()
  driver core: remove private pointer from struct bus_type
  ...
</pre>
</div>
</content>
</entry>
</feed>
