kernel/linux.git/drivers/usb/core/hcd.c, branch v5.2.16

usb: setup authorized_default attributes using usb_bus_notify

2019-08-25T14:10:35+00:00

commit 27709ae4e2fe6cf7da2ae45e718e190c5433342b upstream. Currently, the authorized_default and interface_authorized_default attributes for HCD are set up after the uevent has been sent to userland. This creates a race condition where userland may fail to access this file when processing the event. Move the appending of these attributes earlier relying on the usb_bus_notify dispatcher. Signed-off-by: Thiébaud Weksteen Cc: stable Link: https://lore.kernel.org/r/20190806110050.38918-1-tweek@google.com Signed-off-by: Greg Kroah-Hartman

usb/hcd: Send a uevent signaling that the host controller had died

2019-04-25T09:07:09+00:00

This change will send an OFFLINE event to udev with the ERROR=DEAD environment variable set when the HC dies. By notifying user space the appropriate policies can be applied. i.e., * Collect error logs. * Notify the user that USB is no longer functional. * Perform a graceful reboot. Reported-by: kbuild test robot Signed-off-by: Raul E Rangel Signed-off-by: Greg Kroah-Hartman

Merge 5.1-rc3 into usb-next

2019-04-01T05:42:04+00:00

We want the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman

usb: core: Try generic PHY_MODE_USB_HOST if usb_phy_roothub_set_mode fails

2019-03-26T07:48:55+00:00

Some PHYs do not support PHY_MODE_USB_HOST_SS, i.e. USB 3.0 or higher. Fall back and try the more generic PHY_MODE_USB_HOST if it fails. Fixes: b97a31348379 ("usb: core: comply to PHY framework") Signed-off-by: Chen-Yu Tsai Tested-by: Neil Armstrong Signed-off-by: Greg Kroah-Hartman

usb: introduce usb_ep_type_string() function

2019-03-26T07:45:03+00:00

In some places, the code prints a human-readable USB endpoint transfer type (e.g. "bulk"). This involves a switch statement sometimes wrapped around in ({ ... }) block leading to code repetition. To make this scenario easier, here introduces usb_ep_type_string() function, which returns a human-readable name of provided endpoint type. It also changes a few places switch was used to use this new function. Signed-off-by: Chunfeng Yun Signed-off-by: Greg Kroah-Hartman

usb: core: Add PM runtime calls to usb_hcd_platform_shutdown

2019-03-26T07:42:53+00:00

If ohci-platform is runtime suspended, we can currently get an "imprecise external abort" on reboot with ohci-platform loaded when PM runtime is implemented for the SoC. Let's fix this by adding PM runtime support to usb_hcd_platform_shutdown. Signed-off-by: Tony Lindgren Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman

usb: core: Fix typo in description of "authorized_default"

2019-02-27T18:15:12+00:00

Add missing right parenthesis. Signed-off-by: Jakub Wilk Signed-off-by: Greg Kroah-Hartman

usb: core: add option of only authorizing internal devices

2019-02-22T08:27:55+00:00

On Chrome OS we want to use USBguard to potentially limit access to USB devices based on policy. We however to do not want to wait for userspace to come up before initializing fixed USB devices to not regress our boot times. This patch adds option to instruct the kernel to only authorize devices connected to the internal ports. Previously we could either authorize all or none (or, by default, we'd only authorize wired devices). The behavior is controlled via usbcore.authorized_default command line option. Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman

usb: core: comply to PHY framework

2019-01-30T08:22:35+00:00

Current implementation of the USB core does not take into account the new PHY framework. Correct the situation by adding a call to phy_set_mode() before phy_power_on(). Signed-off-by: Miquel Raynal Signed-off-by: Greg Kroah-Hartman

usb: core: Remove unnecessary memset()

2018-12-12T11:38:41+00:00

register_root_hub() calls memset() setting usb_dev->bus->devmap. devicemap to 0 during hcd probe function (usb_hcd_pci_probe). But in previous function which is also the procedure of usb_hcd_pci_probe(), usb_bus_init() already initialized bus->devmap calling memset(). Furthermore, register_root_hub() is called only once in kernel. So, calling memset() which resets usb_bus->devmap.devicemap in register_root_hub() is redundant. Signed-off-by: Suwan Kim Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman