linux/drivers/usb/core
Mathias Nyman 1ac7db6333 usb: hub: Allow reset retry for USB2 devices on connect bounce
If the connect status change is set during reset signaling, but
the status remains connected just retry port reset.

This solves an issue with connecting a 90W HP Thunderbolt 3 dock
with a Lenovo Carbon x1 (5th generation) which causes a 30min loop
of a high speed device being re-discovererd before usb ports starts
working.

[...]
[ 389.023845] usb 3-1: new high-speed USB device number 55 using xhci_hcd
[ 389.491841] usb 3-1: new high-speed USB device number 56 using xhci_hcd
[ 389.959928] usb 3-1: new high-speed USB device number 57 using xhci_hcd
[...]

This is caused by a high speed device that doesn't successfully go to the
enabled state after the second port reset. Instead the connection bounces
(connected, with connect status change), bailing out completely from
enumeration just to restart from scratch.

Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1716332

Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-19 09:49:11 +02:00
..
buffer.c usb: separate out sysdev pointer from usb_bus 2017-03-23 08:20:21 +01:00
config.c USB: core: fix out-of-bounds access bug in usb_get_bos_descriptor() 2017-10-18 19:11:52 +02:00
devices.c usb: fix some references for /proc/bus/usb 2017-04-18 16:54:19 +02:00
devio.c USB: devio: Revert "USB: devio: Don't corrupt user memory" 2017-10-17 10:53:20 +02:00
driver.c usb: hub: Do not attempt to autosuspend disconnected devices 2017-03-23 08:13:22 +01:00
endpoint.c usb: patches for v4.10 merge window 2016-11-18 16:02:15 +01:00
file.c USB: Proper handling of Race Condition when two USB class drivers try to call init_usb_class simultaneously 2017-03-29 11:55:25 +02:00
generic.c USB: core: add missing license information to some files 2016-10-29 12:51:56 -04:00
hcd-pci.c USB / PCI / PM: Allow the PCI core to do the resume cleanup 2017-06-15 00:55:43 +02:00
hcd.c Merge 4.13-rc5 into usb-next 2017-08-14 14:50:58 -07:00
hub.c usb: hub: Allow reset retry for USB2 devices on connect bounce 2017-10-19 09:49:11 +02:00
hub.h usb: Support USB 3.1 extended port status request 2016-01-24 20:16:52 -08:00
Kconfig docs-rst: fix usb cross-references 2017-04-11 14:41:29 -06:00
ledtrig-usbport.c usb: core: usbport: fix "BUG: key not in .data" when lockdep is enabled 2017-08-29 08:27:25 +02:00
Makefile usb: add CONFIG_USB_PCI for system have both PCI HW and non-PCI based USB HW 2017-03-17 13:16:56 +09:00
message.c USB: core: harden cdc_parse_cdc_header 2017-09-21 17:01:38 +02:00
notify.c USB: core: add missing license information to some files 2016-10-29 12:51:56 -04:00
of.c USB: of: document reference taken by child-lookup helper 2017-06-13 11:07:32 +02:00
otg_whitelist.h usb: core: use IS_ENABLED() instead of checking for built-in or module 2016-09-02 14:36:33 +02:00
port.c Revert "USB / PM: Allow USB devices to remain runtime-suspended when sleeping" 2016-05-02 08:44:31 -07:00
quirks.c usb: quirks: add quirk for WORLDE MINI MIDI keyboard 2017-10-17 12:25:41 +02:00
sysfs.c usb: Convert to using %pOF instead of full_name 2017-07-22 15:56:53 +02:00
urb.c USB: core: replace %p with %pK 2017-05-17 11:27:41 +02:00
usb-acpi.c usb: optimize acpi companion search for usb port devices 2017-06-03 18:02:58 +09:00
usb.c USB: of: fix root-hub device-tree node handling 2017-06-13 11:07:32 +02:00
usb.h USB: core: add missing license information to some files 2016-10-29 12:51:56 -04:00