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Mathias Nyman a44c6c61af usb: port: Don't try to peer unused USB ports based on location ... commit 69c63350e5 upstream. Unused USB ports may have bogus location data in ACPI PLD tables. This causes port peering failures as these unused USB2 and USB3 ports location may match. Due to these failures the driver prints a "usb: port power management may be unreliable" warning, and unnecessarily blocks port power off during runtime suspend. This was debugged on a couple DELL systems where the unused ports all returned zeroes in their location data. Similar bugreports exist for other systems. Don't try to peer or match ports that have connect type set to USB_PORT_NOT_USED. Fixes: 3bfd659bae ("usb: find internal hub tier mismatch via acpi") Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218465 Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218486 Tested-by: Paul Menzel <pmenzel@molgen.mpg.de> Link: https://lore.kernel.org/linux-usb/5406d361-f5b7-4309-b0e6-8c94408f7d75@molgen.mpg.de Cc: stable@vger.kernel.org # v3.16+ Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218490 Link: https://lore.kernel.org/r/20240222233343.71856-1-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2024-04-10 16:18:45 +02:00
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buffer.c	usb: usbfs: Enforce page requirements for mmap	2023-06-14 11:13:07 +02:00
config.c	usb: config: fix iteration issue in 'usb_get_bos_descriptor()'	2023-12-08 08:48:02 +01:00
devices.c	usb: common: add function to get interval expressed in us unit	2021-03-10 09:37:17 +01:00
devio.c	usb: hide unused usbfs_notify_suspend/resume functions	2023-07-23 13:47:23 +02:00
driver.c	USB: core: rename usb_driver_claim_interface() data parameter	2021-03-23 12:39:39 +01:00
endpoint.c	usb: common: add function to get interval expressed in us unit	2021-03-10 09:37:17 +01:00
file.c	USB: core: Fix races in character device registration and deregistraion	2019-08-12 22:47:24 +02:00
generic.c	usbcore: Check both id_table and match() when both available	2020-10-28 13:24:58 +01:00
hcd-pci.c	USB: hcd-pci: Fully suspend across freeze/thaw cycle	2022-06-14 18:36:21 +02:00
hcd.c	USB: core: Change usb_get_device_descriptor() API	2023-09-19 12:22:53 +02:00
hub.c	USB: hub: check for alternate port before enabling A_ALT_HNP_SUPPORT	2024-02-23 08:55:04 +01:00
hub.h	usb: hub: Guard against accesses to uninitialized BOS descriptors	2023-10-19 23:05:39 +02:00
Kconfig	USB: hub: Add Kconfig option to reduce number of port initialization retries	2020-10-02 11:29:02 +02:00
ledtrig-usbport.c	usb: core: ledtrig-usbport: Demote obvious misuse of kerneldoc to standard comment blocks	2020-07-09 16:46:57 +02:00
Makefile	usb: core: add a wrapper for the USB PHYs on the HCD	2018-03-09 09:43:53 -08:00
message.c	USB: core: Change usb_get_device_descriptor() API	2023-09-19 12:22:53 +02:00
notify.c	USB: core: Remove usbfs_mutex	2019-06-26 10:28:09 +08:00
of.c	drivers: usb: Fix trivial spelling	2020-06-18 10:13:16 +02:00
otg_productlist.h	USB: OTG: rename product list of devices	2020-06-19 08:58:55 +02:00
phy.c	usb: core: phy: add support for PHY calibration	2019-09-03 15:54:55 +02:00
phy.h	usb: core: phy: add support for PHY calibration	2019-09-03 15:54:55 +02:00
port.c	usb: port: Don't try to peer unused USB ports based on location	2024-04-10 16:18:45 +02:00
quirks.c	USB: quirks: add quirk for Focusrite Scarlett	2023-08-03 10:22:42 +02:00
sysfs.c	USB: core: Don't hold device lock while reading the "descriptors" sysfs file	2023-03-03 11:45:54 +01:00
urb.c	USB: core: Fix hang in usb_kill_urb by adding memory barriers	2022-02-01 17:27:04 +01:00
usb-acpi.c	usb: acpi: add helper to check port lpm capability using acpi _DSM	2023-01-24 07:22:44 +01:00
usb.c	USB: core: Add routines for endpoint checks in old drivers	2023-05-30 13:55:31 +01:00
usb.h	USB: core: Change usb_get_device_descriptor() API	2023-09-19 12:22:53 +02:00