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authorLinus Torvalds <torvalds@linux-foundation.org>2020-04-26 11:22:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-26 11:22:01 -0700
commite9a61afb69f07b1c5880984d45e5cc232ec1bf6f (patch)
tree7b2369783e231cf6d2d301a66ff389f9d86ef12d /drivers/usb/core/hub.c
parentc5f33785719596047b0bb9df98d39fab9d1c51da (diff)
parent2df7405f79ce1674d73c2786fe1a8727c905d65b (diff)
downloadlinux-e9a61afb69f07b1c5880984d45e5cc232ec1bf6f.tar.bz2
Merge tag 'usb-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH: "Here are a number of USB driver fixes for 5.7-rc3. Nothing huge, just the usual collection of: - xhci fixes - gadget driver fixes - syzkaller fuzzing fixes - new device ids and DT bindings - new quirks added for broken devices A few of the gadget driver fixes show up twice here as they were applied to my branch, and also by Felipe to his branch which I then pulled in as we got out of sync a bit. All of these have been in linux-next with no reported issues" * tag 'usb-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (33 commits) USB: sisusbvga: Change port variable from signed to unsigned usb-storage: Add unusual_devs entry for JMicron JMS566 USB: hub: Revert commit bd0e6c9614b9 ("usb: hub: try old enumeration scheme first for high speed devices") USB: hub: Fix handling of connect changes during sleep usb: typec: altmode: Fix typec_altmode_get_partner sometimes returning an invalid pointer xhci: Don't clear hub TT buffer on ep0 protocol stall xhci: prevent bus suspend if a roothub port detected a over-current condition xhci: Fix handling halted endpoint even if endpoint ring appears empty usb: raw-gadget: Fix copy_to/from_user() checks usb: raw-gadget: fix raw_event_queue_fetch locking usb: gadget: udc: atmel: Fix vbus disconnect handling usb: dwc3: gadget: Fix request completion check USB: Add USB_QUIRK_DELAY_CTRL_MSG and USB_QUIRK_DELAY_INIT for Corsair K70 RGB RAPIDFIRE phy: tegra: Select USB_COMMON for usb_get_maximum_speed() usb: typec: tcpm: Ignore CC and vbus changes in PORT_RESET change usb: f_fs: Clear OS Extended descriptor counts to zero in ffs_data_reset() cdc-acm: introduce a cool down cdc-acm: close race betrween suspend() and acm_softint UAS: fix deadlock in error handling and PM flushing work UAS: no use logging any details in case of ENODEV ...
Diffstat (limited to 'drivers/usb/core/hub.c')
-rw-r--r--drivers/usb/core/hub.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 54cd8ef795ec..2b6565c06c23 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1223,6 +1223,11 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
#ifdef CONFIG_PM
udev->reset_resume = 1;
#endif
+ /* Don't set the change_bits when the device
+ * was powered off.
+ */
+ if (test_bit(port1, hub->power_bits))
+ set_bit(port1, hub->change_bits);
} else {
/* The power session is gone; tell hub_wq */
@@ -2723,13 +2728,11 @@ static bool use_new_scheme(struct usb_device *udev, int retry,
{
int old_scheme_first_port =
port_dev->quirks & USB_PORT_QUIRK_OLD_SCHEME;
- int quick_enumeration = (udev->speed == USB_SPEED_HIGH);
if (udev->speed >= USB_SPEED_SUPER)
return false;
- return USE_NEW_SCHEME(retry, old_scheme_first_port || old_scheme_first
- || quick_enumeration);
+ return USE_NEW_SCHEME(retry, old_scheme_first_port || old_scheme_first);
}
/* Is a USB 3.0 port in the Inactive or Compliance Mode state?
@@ -3088,6 +3091,15 @@ static int check_port_resume_type(struct usb_device *udev,
if (portchange & USB_PORT_STAT_C_ENABLE)
usb_clear_port_feature(hub->hdev, port1,
USB_PORT_FEAT_C_ENABLE);
+
+ /*
+ * Whatever made this reset-resume necessary may have
+ * turned on the port1 bit in hub->change_bits. But after
+ * a successful reset-resume we want the bit to be clear;
+ * if it was on it would indicate that something happened
+ * following the reset-resume.
+ */
+ clear_bit(port1, hub->change_bits);
}
return status;