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2026-01-23usb: core: add USB_QUIRK_NO_BOS for devices that hang on BOS descriptorJohannes Brüderl2-0/+8
commit 2740ac33c87b3d0dfa022efd6ba04c6261b1abbd upstream. Add USB_QUIRK_NO_BOS quirk flag to skip requesting the BOS descriptor for devices that cannot handle it. Add Elgato 4K X (0fd9:009b) to the quirk table. This device hangs when the BOS descriptor is requested at SuperSpeed Plus (10Gbps). Link: https://bugzilla.kernel.org/show_bug.cgi?id=220027 Cc: stable <stable@kernel.org> Signed-off-by: Johannes Brüderl <johannes.bruederl@gmail.com> Link: https://patch.msgid.link/20251207090220.14807-1-johannes.bruederl@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-18USB: Fix descriptor count when handling invalid MBIM extended descriptorSeungjin Bae1-1/+1
[ Upstream commit 5570ad1423ee60f6e972dadb63fb2e5f90a54cbe ] In cdc_parse_cdc_header(), the check for the USB_CDC_MBIM_EXTENDED_TYPE descriptor was using 'break' upon detecting an invalid length. This was incorrect because 'break' only exits the switch statement, causing the code to fall through to cnt++, thus incorrectly incrementing the count of parsed descriptors for a descriptor that was actually invalid and being discarded. This patch changes 'break' to 'goto next_desc;' to ensure that the logic skips the counter increment and correctly proceeds to the next descriptor in the buffer. This maintains an accurate count of only the successfully parsed descriptors. Fixes: e4c6fb7794982 ("usbnet: move the CDC parser into USB core") Signed-off-by: Seungjin Bae <eeodqql09@gmail.com> Link: https://lore.kernel.org/r/20250928185611.764589-1-eeodqql09@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-29usb/core/quirks: Add Huawei ME906S to wakeup quirkTim Guttzeit1-0/+2
commit dfc2cf4dcaa03601cd4ca0f7def88b2630fca6ab upstream. The list of Huawei LTE modules needing the quirk fixing spurious wakeups was missing the IDs of the Huawei ME906S module, therefore suspend did not work. Cc: stable <stable@kernel.org> Signed-off-by: Tim Guttzeit <t.guttzeit@tuxedocomputers.com> Signed-off-by: Werner Sembach <wse@tuxedocomputers.com> Link: https://patch.msgid.link/20251020134304.35079-1-wse@tuxedocomputers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-10-02usb: core: Add 0x prefix to quirks debug outputJiayi Li1-1/+1
[ Upstream commit 47c428fce0b41b15ab321d8ede871f780ccd038f ] Use "0x%x" format for quirks debug print to clarify it's a hexadecimal value. Improves readability and consistency with other hex outputs. Signed-off-by: Jiayi Li <lijiayi@kylinos.cn> Link: https://lore.kernel.org/r/20250603071045.3243699-1-lijiayi@kylinos.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-28usb: core: hcd: fix accessing unmapped memory in SINGLE_STEP_SET_FEATURE testXu Yang1-1/+7
commit 8fe06185e11ae753414aa6117f0e798aa77567ff upstream. The USB core will unmap urb->transfer_dma after SETUP stage completes. Then the USB controller will access unmapped memory when it received device descriptor. If iommu is equipped, the entire test can't be completed due to the memory accessing is blocked. Fix it by calling map_urb_for_dma() again for IN stage. To reduce redundant map for urb->transfer_buffer, this will also set URB_NO_TRANSFER_DMA_MAP flag before first map_urb_for_dma() to skip dma map for urb->transfer_buffer and clear URB_NO_TRANSFER_DMA_MAP flag before second map_urb_for_dma(). Fixes: 216e0e563d81 ("usb: core: hcd: use map_urb_for_dma for single step set feature urb") Cc: stable <stable@kernel.org> Reviewed-by: Jun Li <jun.li@nxp.com> Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20250806083955.3325299-1-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28usb: quirks: Add DELAY_INIT quick for another SanDisk 3.2Gen1 Flash DriveMiao Li1-0/+1
commit e664036cf36480414936cd91f4cfa2179a3d8367 upstream. Another SanDisk 3.2Gen1 Flash Drive also need DELAY_INIT quick, or it will randomly work incorrectly on Huawei hisi platforms when doing reboot test. Signed-off-by: Miao Li <limiao@kylinos.cn> Cc: stable <stable@kernel.org> Link: https://lore.kernel.org/r/20250801082728.469406-1-limiao870622@163.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28kcov, usb: Don't disable interrupts in kcov_remote_start_usb_softirq()Sebastian Andrzej Siewior1-7/+5
commit 9528d32873b38281ae105f2f5799e79ae9d086c2 upstream. kcov_remote_start_usb_softirq() the begin of urb's completion callback. HCDs marked HCD_BH will invoke this function from the softirq and in_serving_softirq() will detect this properly. Root-HUB (RH) requests will not be delayed to softirq but complete immediately in IRQ context. This will confuse kcov because in_serving_softirq() will report true if the softirq is served after the hardirq and if the softirq got interrupted by the hardirq in which currently runs. This was addressed by simply disabling interrupts in kcov_remote_start_usb_softirq() which avoided the interruption by the RH while a regular completion callback was invoked. This not only changes the behaviour while kconv is enabled but also breaks PREEMPT_RT because now sleeping locks can no longer be acquired. Revert the previous fix. Address the issue by invoking kcov_remote_start_usb() only if the context is just "serving softirqs" which is identified by checking in_serving_softirq() and in_hardirq() must be false. Fixes: f85d39dd7ed89 ("kcov, usb: disable interrupts in kcov_remote_start_usb_softirq") Cc: stable <stable@kernel.org> Reported-by: Yunseong Kim <ysk@kzalloc.com> Closes: https://lore.kernel.org/all/20250725201400.1078395-2-ysk@kzalloc.com/ Tested-by: Yunseong Kim <ysk@kzalloc.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Link: https://lore.kernel.org/r/20250811082745.ycJqBXMs@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-20usb: core: config: Prevent OOB read in SS endpoint companion parsingXinyu Liu1-2/+8
commit cf16f408364efd8a68f39011a3b073c83a03612d upstream. usb_parse_ss_endpoint_companion() checks descriptor type before length, enabling a potentially odd read outside of the buffer size. Fix this up by checking the size first before looking at any of the fields in the descriptor. Signed-off-by: Xinyu Liu <katieeliu@tencent.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-20usb: core: usb_submit_urb: downgrade type checkOliver Neukum1-1/+1
[ Upstream commit 503bbde34cc3dd2acd231f277ba70c3f9ed22e59 ] Checking for the endpoint type is no reason for a WARN, as that can cause a reboot. A driver not checking the endpoint type must not cause a reboot, as there is just no point in this. We cannot prevent a device from doing something incorrect as a reaction to a transfer. Hence warning for a mere assumption being wrong is not sensible. Signed-off-by: Oliver Neukum <oneukum@suse.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20250612122149.2559724-1-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-24usb: hub: Don't try to recover devices lost during warm reset.Mathias Nyman1-2/+6
commit 2521106fc732b0b75fd3555c689b1ed1d29d273c upstream. Hub driver warm-resets ports in SS.Inactive or Compliance mode to recover a possible connected device. The port reset code correctly detects if a connection is lost during reset, but hub driver port_event() fails to take this into account in some cases. port_event() ends up using stale values and assumes there is a connected device, and will try all means to recover it, including power-cycling the port. Details: This case was triggered when xHC host was suspended with DbC (Debug Capability) enabled and connected. DbC turns one xHC port into a simple usb debug device, allowing debugging a system with an A-to-A USB debug cable. xhci DbC code disables DbC when xHC is system suspended to D3, and enables it back during resume. We essentially end up with two hosts connected to each other during suspend, and, for a short while during resume, until DbC is enabled back. The suspended xHC host notices some activity on the roothub port, but can't train the link due to being suspended, so xHC hardware sets a CAS (Cold Attach Status) flag for this port to inform xhci host driver that the port needs to be warm reset once xHC resumes. CAS is xHCI specific, and not part of USB specification, so xhci driver tells usb core that the port has a connection and link is in compliance mode. Recovery from complinace mode is similar to CAS recovery. xhci CAS driver support that fakes a compliance mode connection was added in commit 8bea2bd37df0 ("usb: Add support for root hub port status CAS") Once xHCI resumes and DbC is enabled back, all activity on the xHC roothub host side port disappears. The hub driver will anyway think port has a connection and link is in compliance mode, and hub driver will try to recover it. The port power-cycle during recovery seems to cause issues to the active DbC connection. Fix this by clearing connect_change flag if hub_port_reset() returns -ENOTCONN, thus avoiding the whole unnecessary port recovery and initialization attempt. Cc: stable@vger.kernel.org Fixes: 8bea2bd37df0 ("usb: Add support for root hub port status CAS") Tested-by: Łukasz Bartosik <ukaszb@chromium.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20250623133947.3144608-1-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-24usb: hub: Fix flushing of delayed work used for post resume purposesMathias Nyman2-13/+9
commit 9bd9c8026341f75f25c53104eb7e656e357ca1a2 upstream. Delayed work that prevents USB3 hubs from runtime-suspending too early needed to be flushed in hub_quiesce() to resolve issues detected on QC SC8280XP CRD board during suspend resume testing. This flushing did however trigger new issues on Raspberry Pi 3B+, which doesn't have USB3 ports, and doesn't queue any post resume delayed work. The flushed 'hub->init_work' item is used for several purposes, and is originally initialized with a 'NULL' work function. The work function is also changed on the fly, which may contribute to the issue. Solve this by creating a dedicated delayed work item for post resume work, and flush that delayed work in hub_quiesce() Cc: stable <stable@kernel.org> Fixes: a49e1e2e785f ("usb: hub: Fix flushing and scheduling of delayed work that tunes runtime pm") Reported-by: Mark Brown <broonie@kernel.org> Closes: https://lore.kernel.org/linux-usb/aF5rNp1l0LWITnEB@finisterre.sirena.org.uk Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Tested-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> # SC8280XP CRD Tested-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250627164348.3982628-2-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-24usb: hub: Fix flushing and scheduling of delayed work that tunes runtime pmMathias Nyman1-2/+4
commit a49e1e2e785fb3621f2d748581881b23a364998a upstream. Delayed work to prevent USB3 hubs from runtime-suspending immediately after resume was added in commit 8f5b7e2bec1c ("usb: hub: fix detection of high tier USB3 devices behind suspended hubs"). This delayed work needs be flushed if system suspends, or hub needs to be quiesced for other reasons right after resume. Not flushing it triggered issues on QC SC8280XP CRD board during suspend/resume testing. Fix it by flushing the delayed resume work in hub_quiesce() The delayed work item that allow hub runtime suspend is also scheduled just before calling autopm get. Alan pointed out there is a small risk that work is run before autopm get, which would call autopm put before get, and mess up the runtime pm usage order. Swap the order of work sheduling and calling autopm get to solve this. Cc: stable <stable@kernel.org> Fixes: 8f5b7e2bec1c ("usb: hub: fix detection of high tier USB3 devices behind suspended hubs") Reported-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Closes: https://lore.kernel.org/linux-usb/acaaa928-832c-48ca-b0ea-d202d5cd3d6c@oss.qualcomm.com Reported-by: Alan Stern <stern@rowland.harvard.edu> Closes: https://lore.kernel.org/linux-usb/c73fbead-66d7-497a-8fa1-75ea4761090a@rowland.harvard.edu Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20250626130102.3639861-2-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-24usb: hub: fix detection of high tier USB3 devices behind suspended hubsMathias Nyman1-1/+32
commit 8f5b7e2bec1c36578fdaa74a6951833541103e27 upstream. USB3 devices connected behind several external suspended hubs may not be detected when plugged in due to aggressive hub runtime pm suspend. The hub driver immediately runtime-suspends hubs if there are no active children or port activity. There is a delay between the wake signal causing hub resume, and driver visible port activity on the hub downstream facing ports. Most of the LFPS handshake, resume signaling and link training done on the downstream ports is not visible to the hub driver until completed, when device then will appear fully enabled and running on the port. This delay between wake signal and detectable port change is even more significant with chained suspended hubs where the wake signal will propagate upstream first. Suspended hubs will only start resuming downstream ports after upstream facing port resumes. The hub driver may resume a USB3 hub, read status of all ports, not yet see any activity, and runtime suspend back the hub before any port activity is visible. This exact case was seen when conncting USB3 devices to a suspended Thunderbolt dock. USB3 specification defines a 100ms tU3WakeupRetryDelay, indicating USB3 devices expect to be resumed within 100ms after signaling wake. if not then device will resend the wake signal. Give the USB3 hubs twice this time (200ms) to detect any port changes after resume, before allowing hub to runtime suspend again. Cc: stable <stable@kernel.org> Fixes: 2839f5bcfcfc ("USB: Turn on auto-suspend for USB 3.0 hubs.") Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20250611112441.2267883-1-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-10Logitech C-270 even more brokenOliver Neukum1-1/+2
commit cee4392a57e14a799fbdee193bc4c0de65b29521 upstream. Some varieties of this device don't work with RESET_RESUME alone. Signed-off-by: Oliver Neukum <oneukum@suse.com> Cc: stable <stable@kernel.org> Link: https://lore.kernel.org/r/20250605122852.1440382-1-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-10usb: acpi: fix device link removalHeikki Krogerus2-1/+6
commit 3b18405763c1ebb1efc15feef5563c9cdb2cc3a7 upstream. The device link to the USB4 host interface has to be removed manually since it's no longer auto removed. Fixes: 623dae3e7084 ("usb: acpi: fix boot hang due to early incorrect 'tunneled' USB3 device links") Cc: stable <stable@kernel.org> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Link: https://lore.kernel.org/r/20250611111415.2707865-1-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-06usb: Add checks for snprintf() calls in usb_alloc_dev()Andy Shevchenko1-4/+10
[ Upstream commit 82fe5107fa3d21d6c3fba091c9dbc50495588630 ] When creating a device path in the driver the snprintf() takes up to 16 characters long argument along with the additional up to 12 characters for the signed integer (as it can't see the actual limits) and tries to pack this into 16 bytes array. GCC complains about that when build with `make W=1`: drivers/usb/core/usb.c:705:25: note: ‘snprintf’ output between 3 and 28 bytes into a destination of size 16 Since everything works until now, let's just check for the potential buffer overflow and bail out. It is most likely a never happen situation, but at least it makes GCC happy. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20250321164949.423957-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-19usb: Flush altsetting 0 endpoints before reinitializating them after reset.Mathias Nyman1-2/+14
commit 89bb3dc13ac29a563f4e4c555e422882f64742bd upstream. usb core avoids sending a Set-Interface altsetting 0 request after device reset, and instead relies on calling usb_disable_interface() and usb_enable_interface() to flush and reset host-side of those endpoints. xHCI hosts allocate and set up endpoint ring buffers and host_ep->hcpriv during usb_hcd_alloc_bandwidth() callback, which in this case is called before flushing the endpoint in usb_disable_interface(). Call usb_disable_interface() before usb_hcd_alloc_bandwidth() to ensure URBs are flushed before new ring buffers for the endpoints are allocated. Otherwise host driver will attempt to find and remove old stale URBs from a freshly allocated new ringbuffer. Cc: stable <stable@kernel.org> Fixes: 4fe0387afa89 ("USB: don't send Set-Interface after reset") Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20250514132520.225345-1-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-19usb: acpi: Prevent null pointer dereference in usb_acpi_add_usb4_devlink()Chenyuan Yang1-0/+2
[ Upstream commit 73fb0ec9436ae87bcae067ce35d6cdd72bade86c ] As demonstrated by the fix for update_port_device_state, commit 12783c0b9e2c ("usb: core: Prevent null pointer dereference in update_port_device_state"), usb_hub_to_struct_hub() can return NULL in certain scenarios, such as during hub driver unbind or teardown race conditions, even if the underlying usb_device structure exists. Plus, all other places that call usb_hub_to_struct_hub() in the same file do check for NULL return values. If usb_hub_to_struct_hub() returns NULL, the subsequent access to hub->ports[udev->portnum - 1] will cause a null pointer dereference. Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com> Fixes: f1bfb4a6fed6 ("usb: acpi: add device link between tunneled USB3 device and USB4 Host Interface") Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20250417195032.1811338-1-chenyuan0y@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-10usb: quirks: Add NO_LPM quirk for SanDisk Extreme 55AEJiayi Li1-0/+3
commit 19f795591947596b5b9efa86fd4b9058e45786e9 upstream. This device exhibits I/O errors during file transfers due to unstable link power management (LPM) behavior. The kernel logs show repeated warm resets and eventual disconnection when LPM is enabled: [ 3467.810740] hub 2-0:1.0: state 7 ports 6 chg 0000 evt 0020 [ 3467.810740] usb usb2-port5: do warm reset [ 3467.866444] usb usb2-port5: not warm reset yet, waiting 50ms [ 3467.907407] sd 0:0:0:0: [sda] tag#12 sense submit err -19 [ 3467.994423] usb usb2-port5: status 02c0, change 0001, 10.0 Gb/s [ 3467.994453] usb 2-5: USB disconnect, device number 4 The error -19 (ENODEV) occurs when the device disappears during write operations. Adding USB_QUIRK_NO_LPM disables link power management for this specific device, resolving the stability issues. Signed-off-by: Jiayi Li <lijiayi@kylinos.cn> Cc: stable <stable@kernel.org> Link: https://lore.kernel.org/r/20250508055947.764538-1-lijiayi@kylinos.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-02USB: VLI disk crashes if LPM is usedOliver Neukum1-0/+3
commit e00b39a4f3552c730f1e24c8d62c4a8c6aad4e5d upstream. This device needs the NO_LPM quirk. Cc: stable <stable@kernel.org> Signed-off-by: Oliver Neukum <oneukum@suse.com> Link: https://lore.kernel.org/r/20250408135800.792515-1-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-02usb: quirks: Add delay init quirk for SanDisk 3.2Gen1 Flash DriveMiao Li1-0/+3
commit 37ffdbd695c02189dbf23d6e7d2385e0299587ca upstream. The SanDisk 3.2Gen1 Flash Drive, which VID:PID is in 0781:55a3, just like Silicon Motion Flash Drive: https://lore.kernel.org/r/20250401023027.44894-1-limiao870622@163.com also needs the DELAY_INIT quirk, or it will randomly work incorrectly (e.g.: lsusb and can't list this device info) when connecting Huawei hisi platforms and doing thousand of reboot test circles. Cc: stable <stable@kernel.org> Signed-off-by: Miao Li <limiao@kylinos.cn> Signed-off-by: Lei Huang <huanglei@kylinos.cn> Link: https://lore.kernel.org/r/20250414062935.159024-1-limiao870622@163.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-02usb: quirks: add DELAY_INIT quirk for Silicon Motion Flash DriveMiao Li1-0/+3
commit 2932b6b547ec36ad2ed60fbf2117c0e46bb7d40a upstream. Silicon Motion Flash Drive connects to Huawei hisi platforms and performs a system reboot test for two thousand circles, it will randomly work incorrectly on boot, set DELAY_INIT quirk can workaround this issue. Signed-off-by: Miao Li <limiao@kylinos.cn> Cc: stable <stable@kernel.org> Link: https://lore.kernel.org/r/20250401023027.44894-1-limiao870622@163.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-03-13usb: quirks: Add DELAY_INIT and NO_LPM for Prolific Mass Storage Card ReaderMiao Li1-0/+4
commit ff712188daa3fe3ce7e11e530b4dca3826dae14a upstream. When used on Huawei hisi platforms, Prolific Mass Storage Card Reader which the VID:PID is in 067b:2731 might fail to enumerate at boot time and doesn't work well with LPM enabled, combination quirks: USB_QUIRK_DELAY_INIT + USB_QUIRK_NO_LPM fixed the problems. Signed-off-by: Miao Li <limiao@kylinos.cn> Cc: stable <stable@kernel.org> Link: https://lore.kernel.org/r/20250304070757.139473-1-limiao870622@163.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-03-13usb: hub: lack of clearing xHC resourcesPawel Laszczak1-0/+33
commit 2b66ef84d0d2a0ea955b40bd306f5e3abbc5cf9c upstream. The xHC resources allocated for USB devices are not released in correct order after resuming in case when while suspend device was reconnected. This issue has been detected during the fallowing scenario: - connect hub HS to root port - connect LS/FS device to hub port - wait for enumeration to finish - force host to suspend - reconnect hub attached to root port - wake host For this scenario during enumeration of USB LS/FS device the Cadence xHC reports completion error code for xHC commands because the xHC resources used for devices has not been properly released. XHCI specification doesn't mention that device can be reset in any order so, we should not treat this issue as Cadence xHC controller bug. Similar as during disconnecting in this case the device resources should be cleared starting form the last usb device in tree toward the root hub. To fix this issue usbcore driver should call hcd->driver->reset_device for all USB devices connected to hub which was reconnected while suspending. Fixes: 3d82904559f4 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver") Cc: stable <stable@kernel.org> Signed-off-by: Pawel Laszczak <pawell@cadence.com> Reviewed-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/PH7PR07MB953841E38C088678ACDCF6EEDDCC2@PH7PR07MB9538.namprd07.prod.outlook.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-02-21USB: hub: Ignore non-compliant devices with too many configs or interfacesAlan Stern1-0/+11
commit 2240fed37afbcdb5e8b627bc7ad986891100e05d upstream. Robert Morris created a test program which can cause usb_hub_to_struct_hub() to dereference a NULL or inappropriate pointer: Oops: general protection fault, probably for non-canonical address 0xcccccccccccccccc: 0000 [#1] SMP DEBUG_PAGEALLOC PTI CPU: 7 UID: 0 PID: 117 Comm: kworker/7:1 Not tainted 6.13.0-rc3-00017-gf44d154d6e3d #14 Hardware name: FreeBSD BHYVE/BHYVE, BIOS 14.0 10/17/2021 Workqueue: usb_hub_wq hub_event RIP: 0010:usb_hub_adjust_deviceremovable+0x78/0x110 ... Call Trace: <TASK> ? die_addr+0x31/0x80 ? exc_general_protection+0x1b4/0x3c0 ? asm_exc_general_protection+0x26/0x30 ? usb_hub_adjust_deviceremovable+0x78/0x110 hub_probe+0x7c7/0xab0 usb_probe_interface+0x14b/0x350 really_probe+0xd0/0x2d0 ? __pfx___device_attach_driver+0x10/0x10 __driver_probe_device+0x6e/0x110 driver_probe_device+0x1a/0x90 __device_attach_driver+0x7e/0xc0 bus_for_each_drv+0x7f/0xd0 __device_attach+0xaa/0x1a0 bus_probe_device+0x8b/0xa0 device_add+0x62e/0x810 usb_set_configuration+0x65d/0x990 usb_generic_driver_probe+0x4b/0x70 usb_probe_device+0x36/0xd0 The cause of this error is that the device has two interfaces, and the hub driver binds to interface 1 instead of interface 0, which is where usb_hub_to_struct_hub() looks. We can prevent the problem from occurring by refusing to accept hub devices that violate the USB spec by having more than one configuration or interface. Reported-and-tested-by: Robert Morris <rtm@csail.mit.edu> Cc: stable <stable@kernel.org> Closes: https://lore.kernel.org/linux-usb/95564.1737394039@localhost/ Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/c27f3bf4-63d8-4fb5-ac82-09e3cd19f61c@rowland.harvard.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-02-21USB: Add USB_QUIRK_NO_LPM quirk for sony xperia xz1 smartphoneMathias Nyman1-0/+3
commit 159daf1258227f44b26b5d38f4aa8f37b8cca663 upstream. The fastboot tool for communicating with Android bootloaders does not work reliably with this device if USB 2 Link Power Management (LPM) is enabled. Various fastboot commands are affected, including the following, which usually reproduces the problem within two tries: fastboot getvar kernel getvar:kernel FAILED (remote: 'GetVar Variable Not found') This issue was hidden on many systems up until commit 63a1f8454962 ("xhci: stored cached port capability values in one place") as the xhci driver failed to detect USB 2 LPM support if USB 3 ports were listed before USB 2 ports in the "supported protocol capabilities". Adding the quirk resolves the issue. No drawbacks are expected since the device uses different USB product IDs outside of fastboot mode, and since fastboot commands worked before, until LPM was enabled on the tested system by the aforementioned commit. Based on a patch from Forest <forestix@nom.one> from which most of the code and commit message is taken. Cc: stable <stable@kernel.org> Reported-by: Forest <forestix@nom.one> Closes: https://lore.kernel.org/hk8umj9lv4l4qguftdq1luqtdrpa1gks5l@sonic.net Tested-by: Forest <forestix@nom.one> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20250206151836.51742-1-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-02-21USB: quirks: add USB_QUIRK_NO_LPM quirk for Teclast distLei Huang1-0/+3
commit e169d96eecd447ff7fd7542ca5fa0911f5622054 upstream. Teclast disk used on Huawei hisi platforms doesn't work well, losing connectivity intermittently if LPM is enabled. Add quirk disable LPM to resolve the issue. Signed-off-by: Lei Huang <huanglei@kylinos.cn> Cc: stable <stable@kernel.org> Link: https://lore.kernel.org/r/20250212093829.7379-1-huanglei814@163.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-02-21usb: core: fix pipe creation for get_bMaxPacketSize0Stefan Eichenberger1-2/+1
commit 4aac0db5a0ebc599d4ad9bf5ebab78afa1f33e10 upstream. When usb_control_msg is used in the get_bMaxPacketSize0 function, the USB pipe does not include the endpoint device number. This can cause failures when a usb hub port is reinitialized after encountering a bad cable connection. As a result, the system logs the following error messages: usb usb2-port1: cannot reset (err = -32) usb usb2-port1: Cannot enable. Maybe the USB cable is bad? usb usb2-port1: attempt power cycle usb 2-1: new high-speed USB device number 5 using ci_hdrc usb 2-1: device descriptor read/8, error -71 The problem began after commit 85d07c556216 ("USB: core: Unite old scheme and new scheme descriptor reads"). There usb_get_device_descriptor was replaced with get_bMaxPacketSize0. Unlike usb_get_device_descriptor, the get_bMaxPacketSize0 function uses the macro usb_rcvaddr0pipe, which does not include the endpoint device number. usb_get_device_descriptor, on the other hand, used the macro usb_rcvctrlpipe, which includes the endpoint device number. By modifying the get_bMaxPacketSize0 function to use usb_rcvctrlpipe instead of usb_rcvaddr0pipe, the issue can be resolved. This change will ensure that the endpoint device number is included in the USB pipe, preventing reinitialization failures. If the endpoint has not set the device number yet, it will still work because the device number is 0 in udev. Cc: stable <stable@kernel.org> Fixes: 85d07c556216 ("USB: core: Unite old scheme and new scheme descriptor reads") Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com> Reviewed-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20250203105840.17539-1-eichest@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-17usb: fix reference leak in usb_new_device()Ma Ke1-2/+4
commit 0df11fa8cee5a9cf8753d4e2672bb3667138c652 upstream. When device_add(&udev->dev) succeeds and a later call fails, usb_new_device() does not properly call device_del(). As comment of device_add() says, 'if device_add() succeeds, you should call device_del() when you want to get rid of it. If device_add() has not succeeded, use only put_device() to drop the reference count'. Found by code review. Cc: stable <stable@kernel.org> Fixes: 9f8b17e643fe ("USB: make usbdevices export their device nodes instead of using a separate class") Signed-off-by: Ma Ke <make_ruc2021@163.com> Reviewed-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20241218071346.2973980-1-make_ruc2021@163.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-17USB: core: Disable LPM only for non-suspended portsKai-Heng Feng1-3/+4
commit 59bfeaf5454b7e764288d84802577f4a99bf0819 upstream. There's USB error when tegra board is shutting down: [ 180.919315] usb 2-3: Failed to set U1 timeout to 0x0,error code -113 [ 180.919995] usb 2-3: Failed to set U1 timeout to 0xa,error code -113 [ 180.920512] usb 2-3: Failed to set U2 timeout to 0x4,error code -113 [ 186.157172] tegra-xusb 3610000.usb: xHCI host controller not responding, assume dead [ 186.157858] tegra-xusb 3610000.usb: HC died; cleaning up [ 186.317280] tegra-xusb 3610000.usb: Timeout while waiting for evaluate context command The issue is caused by disabling LPM on already suspended ports. For USB2 LPM, the LPM is already disabled during port suspend. For USB3 LPM, port won't transit to U1/U2 when it's already suspended in U3, hence disabling LPM is only needed for ports that are not suspended. Cc: Wayne Chang <waynec@nvidia.com> Cc: stable <stable@kernel.org> Fixes: d920a2ed8620 ("usb: Disable USB3 LPM at shutdown") Signed-off-by: Kai-Heng Feng <kaihengf@nvidia.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Tested-by: Jon Hunter <jonathanh@nvidia.com> Link: https://lore.kernel.org/r/20241206074817.89189-1-kaihengf@nvidia.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-12-19usb: core: hcd: only check primary hcd skip_phy_initializationXu Yang1-1/+7
commit d2ec94fbc431cc77ed53d4480bdc856669c2b5aa upstream. Before commit 53a2d95df836 ("usb: core: add phy notify connect and disconnect"), phy initialization will be skipped even when shared hcd doesn't set skip_phy_initialization flag. However, the situation is changed after the commit. The hcd.c will initialize phy when add shared hcd. This behavior is unexpected for some platforms which will handle phy initialization by themselves. To avoid the issue, this will only check skip_phy_initialization flag of primary hcd since shared hcd normally follow primary hcd setting. Fixes: 53a2d95df836 ("usb: core: add phy notify connect and disconnect") Cc: stable@vger.kernel.org Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Link: https://lore.kernel.org/r/20241105090120.2438366-1-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-29usb: acpi: fix boot hang due to early incorrect 'tunneled' USB3 device linksMathias Nyman1-2/+2
Fix a boot hang issue triggered when a USB3 device is incorrectly assumed to be tunneled over USB4, thus attempting to create a device link between the USB3 "consumer" device and the USB4 "supplier" Host Interface before the USB4 side is properly bound to a driver. This could happen if xhci isn't capable of detecting tunneled devices, but ACPI tables contain all info needed to assume device is tunneled. i.e. udev->tunnel_mode == USB_LINK_UNKNOWN. It turns out that even for actual tunneled USB3 devices it can't be assumed that the thunderbolt driver providing the tunnel is loaded before the tunneled USB3 device is created. The tunnel can be created by BIOS and remain in use by thunderbolt/USB4 host driver once it loads. Solve this by making the device link "stateless", which doesn't create a driver presence order dependency between the supplier and consumer drivers. It still guarantees correct suspend/resume and shutdown ordering. cc: Mario Limonciello <mario.limonciello@amd.com> Fixes: f1bfb4a6fed6 ("usb: acpi: add device link between tunneled USB3 device and USB4 Host Interface") Tested-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Tested-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://lore.kernel.org/r/20241024131355.3836538-1-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-03move asm/unaligned.h to linux/unaligned.hAl Viro1-1/+1
asm/unaligned.h is always an include of asm-generic/unaligned.h; might as well move that thing to linux/unaligned.h and include that - there's nothing arch-specific in that header. auto-generated by the following: for i in `git grep -l -w asm/unaligned.h`; do sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i done for i in `git grep -l -w asm-generic/unaligned.h`; do sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i done git mv include/asm-generic/unaligned.h include/linux/unaligned.h git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
2024-09-03usb: acpi: add device link between tunneled USB3 device and USB4 Host InterfaceMathias Nyman1-0/+53
Describe the power management relationship between a tunneled USB3 device and the tunnel providing USB4 host with a device link as the relationship between them is not evident from normal device hierarchy. Tunneling capable ports have an ACPI _DSD object pointing to the USB4 Host Interface that is used to establish USB3 3.x tunnels Set the link directly between tunneled USB3 devices and USB4 Host Interface to ensure that the USB4 host can runtime suspend if no tunneled USB 3.x devices exist. Current Thunderbolt code sets a link between USB4 Host Interface and USB3 xHCI host which prevents USB4 Host Interface from runtime suspending even if the USB3 host is only serving native USB devices. See commit b2be2b05cf3b ("thunderbolt: Create device links from ACPI description") for details. As the device link is only set for USB3 devices that are already tunneled we know that USB4 Host Interface exists and is bound to its driver. Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20240830152630.3943215-4-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-08-22usb: core: sysfs: Unmerge @usb3_hardware_lpm_attr_group in ↵Zijun Hu1-0/+1
remove_power_attributes() Device attribute group @usb3_hardware_lpm_attr_group is merged by add_power_attributes(), but it is not unmerged explicitly, fixed by unmerging it in remove_power_attributes(). Fixes: 655fe4effe0f ("usbcore: add sysfs support to xHCI usb3 hardware LPM") Cc: stable@vger.kernel.org Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com> Link: https://lore.kernel.org/r/20240820-sysfs_fix-v2-1-a9441487077e@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-07-25Merge tag 'driver-core-6.11-rc1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the big set of driver core changes for 6.11-rc1. Lots of stuff in here, with not a huge diffstat, but apis are evolving which required lots of files to be touched. Highlights of the changes in here are: - platform remove callback api final fixups (Uwe took many releases to get here, finally!) - Rust bindings for basic firmware apis and initial driver-core interactions. It's not all that useful for a "write a whole driver in rust" type of thing, but the firmware bindings do help out the phy rust drivers, and the driver core bindings give a solid base on which others can start their work. There is still a long way to go here before we have a multitude of rust drivers being added, but it's a great first step. - driver core const api changes. This reached across all bus types, and there are some fix-ups for some not-common bus types that linux-next and 0-day testing shook out. This work is being done to help make the rust bindings more safe, as well as the C code, moving toward the end-goal of allowing us to put driver structures into read-only memory. We aren't there yet, but are getting closer. - minor devres cleanups and fixes found by code inspection - arch_topology minor changes - other minor driver core cleanups All of these have been in linux-next for a very long time with no reported problems" * tag 'driver-core-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (55 commits) ARM: sa1100: make match function take a const pointer sysfs/cpu: Make crash_hotplug attribute world-readable dio: Have dio_bus_match() callback take a const * zorro: make match function take a const pointer driver core: module: make module_[add|remove]_driver take a const * driver core: make driver_find_device() take a const * driver core: make driver_[create|remove]_file take a const * firmware_loader: fix soundness issue in `request_internal` firmware_loader: annotate doctests as `no_run` devres: Correct code style for functions that return a pointer type devres: Initialize an uninitialized struct member devres: Fix memory leakage caused by driver API devm_free_percpu() devres: Fix devm_krealloc() wasting memory driver core: platform: Switch to use kmemdup_array() driver core: have match() callback in struct bus_type take a const * MAINTAINERS: add Rust device abstractions to DRIVER CORE device: rust: improve safety comments MAINTAINERS: add Danilo as FIRMWARE LOADER maintainer MAINTAINERS: add Rust FW abstractions to FIRMWARE LOADER firmware: rust: improve safety comments ...
2024-07-20Merge tag 'usb-6.11-rc1' of ↵Linus Torvalds2-0/+15
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / Thunderbolt updates from Greg KH: "Here is the big set of USB and Thunderbolt changes for 6.11-rc1. Nothing earth-shattering in here, just constant forward progress in adding support for new hardware and better debugging functionalities for thunderbolt devices and the subsystem. Included in here are: - thunderbolt debugging update and driver additions - xhci driver updates - typec driver updates - kselftest device driver changes (acked by the relevant maintainers, depended on other changes in this tree.) - cdns3 driver updates - gadget driver updates - MODULE_DESCRIPTION() additions - dwc3 driver updates and fixes All of these have been in linux-next for a while with no reported issues" * tag 'usb-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (112 commits) kselftest: devices: Add test to detect device error logs kselftest: Move ksft helper module to common directory kselftest: devices: Move discoverable devices test to subdirectory usb: gadget: f_uac2: fix non-newline-terminated function name USB: uas: Implement the new shutdown callback USB: core: add 'shutdown' callback to usb_driver usb: typec: Drop explicit initialization of struct i2c_device_id::driver_data to 0 usb: dwc3: enable CCI support for AMD-xilinx DWC3 controller usb: dwc2: add support for other Lantiq SoCs usb: gadget: Use u16 types for 16-bit fields usb: gadget: midi2: Fix incorrect default MIDI2 protocol setup usb: dwc3: core: Check all ports when set phy suspend usb: typec: tcpci: add support to set connector orientation dt-bindings: usb: Convert fsl-usb to yaml usb: typec: ucsi: reorder operations in ucsi_run_command() usb: typec: ucsi: extract common code for command handling usb: typec: ucsi: inline ucsi_read_message_in usb: typec: ucsi: rework command execution functions usb: typec: ucsi: split read operation usb: typec: ucsi: simplify command sending API ...
2024-07-10USB: core: add 'shutdown' callback to usb_driverKerem Karabay1-0/+14
Currently there is no standardized method for USB drivers to handle shutdown events. This patch simplifies running code on shutdown for USB devices by adding a shutdown callback to usb_driver. Signed-off-by: Kerem Karabay <kekrby@gmail.com> Signed-off-by: Aditya Garg <gargaditya08@live.com> Link: https://lore.kernel.org/r/7AAC1BF4-8B60-448D-A3C1-B7E80330BE42@live.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-07-03usb: core: add missing of_node_put() in usb_of_has_devices_or_graphJavier Carrasco1-2/+5
The for_each_child_of_node() macro requires an explicit call to of_node_put() on early exits to decrement the child refcount and avoid a memory leak. The child node is not required outsie the loop, and the resource must be released before the function returns. Add the missing of_node_put(). Cc: stable@vger.kernel.org Fixes: 82e82130a78b ("usb: core: Set connect_type of ports based on DT node") Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20240624-usb_core_of_memleak-v1-1-af6821c1a584@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-07-03USB: Add USB_QUIRK_NO_SET_INTF quirk for START BP-850kWangYuli1-0/+3
START BP-850K is a dot matrix printer that crashes when it receives a Set-Interface request and needs USB_QUIRK_NO_SET_INTF to work properly. Cc: stable <stable@kernel.org> Signed-off-by: jinxiaobo <jinxiaobo@uniontech.com> Signed-off-by: WangYuli <wangyuli@uniontech.com> Link: https://lore.kernel.org/r/202E4B2BD0F0FEA4+20240702154408.631201-1-wangyuli@uniontech.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-07-03USB: core: Fix duplicate endpoint bug by clearing reserved bits in the ↵Alan Stern1-3/+15
descriptor Syzbot has identified a bug in usbcore (see the Closes: tag below) caused by our assumption that the reserved bits in an endpoint descriptor's bEndpointAddress field will always be 0. As a result of the bug, the endpoint_is_duplicate() routine in config.c (and possibly other routines as well) may believe that two descriptors are for distinct endpoints, even though they have the same direction and endpoint number. This can lead to confusion, including the bug identified by syzbot (two descriptors with matching endpoint numbers and directions, where one was interrupt and the other was bulk). To fix the bug, we will clear the reserved bits in bEndpointAddress when we parse the descriptor. (Note that both the USB-2.0 and USB-3.1 specs say these bits are "Reserved, reset to zero".) This requires us to make a copy of the descriptor earlier in usb_parse_endpoint() and use the copy instead of the original when checking for duplicates. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-and-tested-by: syzbot+8693a0bb9c10b554272a@syzkaller.appspotmail.com Closes: https://lore.kernel.org/linux-usb/0000000000003d868e061bc0f554@google.com/ Fixes: 0a8fd1346254 ("USB: fix problems with duplicate endpoint addresses") CC: Oliver Neukum <oneukum@suse.com> CC: stable@vger.kernel.org Link: https://lore.kernel.org/r/205a5edc-7fef-4159-b64a-80374b6b101a@rowland.harvard.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-07-03driver core: have match() callback in struct bus_type take a const *Greg Kroah-Hartman1-1/+1
In the match() callback, the struct device_driver * should not be changed, so change the function callback to be a const *. This is one step of many towards making the driver core safe to have struct device_driver in read-only memory. Because the match() callback is in all busses, all busses are modified to handle this properly. This does entail switching some container_of() calls to container_of_const() to properly handle the constant *. For some busses, like PCI and USB and HV, the const * is cast away in the match callback as those busses do want to modify those structures at this point in time (they have a local lock in the driver structure.) That will have to be changed in the future if they wish to have their struct device * in read-only-memory. Cc: Rafael J. Wysocki <rafael@kernel.org> Reviewed-by: Alex Elder <elder@kernel.org> Acked-by: Sumit Garg <sumit.garg@linaro.org> Link: https://lore.kernel.org/r/2024070136-wrongdoer-busily-01e8@gregkh Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-06-20usb: add missing MODULE_DESCRIPTION() macrosJeff Johnson1-0/+1
With ARCH=x86, make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/core/usbcore.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/mon/usbmon.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/class/usbtmc.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/storage/uas.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/chipidea/ci_hdrc_msm.o Add the missing invocations of the MODULE_DESCRIPTION() macro. Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Link: https://lore.kernel.org/r/20240618-md-drivers-usb-v2-1-e9b20a5eb7f9@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-06-04kcov, usb: disable interrupts in kcov_remote_start_usb_softirqAndrey Konovalov1-5/+7
After commit 8fea0c8fda30 ("usb: core: hcd: Convert from tasklet to BH workqueue"), usb_giveback_urb_bh() runs in the BH workqueue with interrupts enabled. Thus, the remote coverage collection section in usb_giveback_urb_bh()-> __usb_hcd_giveback_urb() might be interrupted, and the interrupt handler might invoke __usb_hcd_giveback_urb() again. This breaks KCOV, as it does not support nested remote coverage collection sections within the same context (neither in task nor in softirq). Update kcov_remote_start/stop_usb_softirq() to disable interrupts for the duration of the coverage collection section to avoid nested sections in the softirq context (in addition to such in the task context, which are already handled). Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Closes: https://lore.kernel.org/linux-usb/0f4d1964-7397-485b-bc48-11c01e2fcbca@I-love.SAKURA.ne.jp/ Closes: https://syzkaller.appspot.com/bug?extid=0438378d6f157baae1a2 Suggested-by: Alan Stern <stern@rowland.harvard.edu> Fixes: 8fea0c8fda30 ("usb: core: hcd: Convert from tasklet to BH workqueue") Cc: stable@vger.kernel.org Acked-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com> Link: https://lore.kernel.org/r/20240527173538.4989-1-andrey.konovalov@linux.dev Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-05-22Merge tag 'usb-6.10-rc1' of ↵Linus Torvalds5-18/+17
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / Thunderbolt updates from Greg KH: "Here is the big set of USB and Thunderbolt changes for 6.10-rc1. Nothing hugely earth-shattering, just constant forward progress for hardware support of new devices and cleanups over the drivers. Included in here are: - Thunderbolt / USB 4 driver updates - typec driver updates - dwc3 driver updates - gadget driver updates - uss720 driver id additions and fixes (people use USB->arallel port devices still!) - onboard-hub driver rename and additions for new hardware - xhci driver updates - other small USB driver updates and additions for quirks and api changes All of these have been in linux-next for a while with no reported problems" * tag 'usb-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (154 commits) drm/bridge: aux-hpd-bridge: correct devm_drm_dp_hpd_bridge_add() stub usb: fotg210: Add missing kernel doc description usb: dwc3: core: Fix unused variable warning in core driver usb: typec: tipd: rely on i2c_get_match_data() usb: typec: tipd: fix event checking for tps6598x usb: typec: tipd: fix event checking for tps25750 dt-bindings: usb: qcom,dwc3: fix interrupt max items usb: fotg210: Use *-y instead of *-objs in Makefile usb: phy: tegra: Replace of_gpio.h by proper one usb: typec: ucsi: displayport: Fix potential deadlock usb: typec: qcom-pmic-typec: split HPD bridge alloc and registration usb: musc: Remove unused list 'buffers' usb: dwc3: Wait unconditionally after issuing EndXfer command usb: gadget: u_audio: Clear uac pointer when freed. usb: gadget: u_audio: Fix race condition use of controls after free during gadget unbind. dt-bindings: usb: dwc3: Add QDU1000 compatible usb: core: Remove the useless struct usb_devmap which is just a bitmap MAINTAINERS: Remove {ehci,uhci}-platform.c from ARM/VT8500 entry USB: usb_parse_endpoint: ignore reserved bits usb: xhci: compact 'trb_in_td()' arguments ...
2024-05-21Merge tag 'pci-v6.10-changes' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci Pull pci updates from Bjorn Helgaas: "Enumeration: - Skip E820 checks for MCFG ECAM regions for new (2016+) machines, since there's no requirement to describe them in E820 and some platforms require ECAM to work (Bjorn Helgaas) - Rename PCI_IRQ_LEGACY to PCI_IRQ_INTX to be more specific (Damien Le Moal) - Remove last user and pci_enable_device_io() (Heiner Kallweit) - Wait for Link Training==0 to avoid possible race (Ilpo Järvinen) - Skip waiting for devices that have been disconnected while suspended (Ilpo Järvinen) - Clear Secondary Status errors after enumeration since Master Aborts and Unsupported Request errors are an expected part of enumeration (Vidya Sagar) MSI: - Remove unused IMS (Interrupt Message Store) support (Bjorn Helgaas) Error handling: - Mask Genesys GL975x SD host controller Replay Timer Timeout correctable errors caused by a hardware defect; the errors cause interrupts that prevent system suspend (Kai-Heng Feng) - Fix EDR-related _DSM support, which previously evaluated revision 5 but assumed revision 6 behavior (Kuppuswamy Sathyanarayanan) ASPM: - Simplify link state definitions and mask calculation (Ilpo Järvinen) Power management: - Avoid D3cold for HP Pavilion 17 PC/1972 PCIe Ports, where BIOS apparently doesn't know how to put them back in D0 (Mario Limonciello) CXL: - Support resetting CXL devices; special handling required because CXL Ports mask Secondary Bus Reset by default (Dave Jiang) DOE: - Support DOE Discovery Version 2 (Alexey Kardashevskiy) Endpoint framework: - Set endpoint BAR to be 64-bit if the driver says that's all the device supports, in addition to doing so if the size is >2GB (Niklas Cassel) - Simplify endpoint BAR allocation and setting interfaces (Niklas Cassel) Cadence PCIe controller driver: - Drop DT binding redundant msi-parent and pci-bus.yaml (Krzysztof Kozlowski) Cadence PCIe endpoint driver: - Configure endpoint BARs to be 64-bit based on the BAR type, not the BAR value (Niklas Cassel) Freescale Layerscape PCIe controller driver: - Convert DT binding to YAML (Frank Li) MediaTek MT7621 PCIe controller driver: - Add DT binding missing 'reg' property for child Root Ports (Krzysztof Kozlowski) - Fix theoretical string truncation in PHY name (Sergio Paracuellos) NVIDIA Tegra194 PCIe controller driver: - Return success for endpoint probe instead of falling through to the failure path (Vidya Sagar) Renesas R-Car PCIe controller driver: - Add DT binding missing IOMMU properties (Geert Uytterhoeven) - Add DT binding R-Car V4H compatible for host and endpoint mode (Yoshihiro Shimoda) Rockchip PCIe controller driver: - Configure endpoint BARs to be 64-bit based on the BAR type, not the BAR value (Niklas Cassel) - Add DT binding missing maxItems to ep-gpios (Krzysztof Kozlowski) - Set the Subsystem Vendor ID, which was previously zero because it was masked incorrectly (Rick Wertenbroek) Synopsys DesignWare PCIe controller driver: - Restructure DBI register access to accommodate devices where this requires Refclk to be active (Manivannan Sadhasivam) - Remove the deinit() callback, which was only need by the pcie-rcar-gen4, and do it directly in that driver (Manivannan Sadhasivam) - Add dw_pcie_ep_cleanup() so drivers that support PERST# can clean up things like eDMA (Manivannan Sadhasivam) - Rename dw_pcie_ep_exit() to dw_pcie_ep_deinit() to make it parallel to dw_pcie_ep_init() (Manivannan Sadhasivam) - Rename dw_pcie_ep_init_complete() to dw_pcie_ep_init_registers() to reflect the actual functionality (Manivannan Sadhasivam) - Call dw_pcie_ep_init_registers() directly from all the glue drivers, not just those that require active Refclk from the host (Manivannan Sadhasivam) - Remove the "core_init_notifier" flag, which was an obscure way for glue drivers to indicate that they depend on Refclk from the host (Manivannan Sadhasivam) TI J721E PCIe driver: - Add DT binding J784S4 SoC Device ID (Siddharth Vadapalli) - Add DT binding J722S SoC support (Siddharth Vadapalli) TI Keystone PCIe controller driver: - Add DT binding missing num-viewport, phys and phy-name properties (Jan Kiszka) Miscellaneous: - Constify and annotate with __ro_after_init (Heiner Kallweit) - Convert DT bindings to YAML (Krzysztof Kozlowski) - Check for kcalloc() failure in of_pci_prop_intr_map() (Duoming Zhou)" * tag 'pci-v6.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (97 commits) PCI: Do not wait for disconnected devices when resuming x86/pci: Skip early E820 check for ECAM region PCI: Remove unused pci_enable_device_io() ata: pata_cs5520: Remove unnecessary call to pci_enable_device_io() PCI: Update pci_find_capability() stub return types PCI: Remove PCI_IRQ_LEGACY scsi: vmw_pvscsi: Do not use PCI_IRQ_LEGACY instead of PCI_IRQ_LEGACY scsi: pmcraid: Use PCI_IRQ_INTX instead of PCI_IRQ_LEGACY scsi: mpt3sas: Use PCI_IRQ_INTX instead of PCI_IRQ_LEGACY scsi: megaraid_sas: Use PCI_IRQ_INTX instead of PCI_IRQ_LEGACY scsi: ipr: Use PCI_IRQ_INTX instead of PCI_IRQ_LEGACY scsi: hpsa: Use PCI_IRQ_INTX instead of PCI_IRQ_LEGACY scsi: arcmsr: Use PCI_IRQ_INTX instead of PCI_IRQ_LEGACY wifi: rtw89: Use PCI_IRQ_INTX instead of PCI_IRQ_LEGACY dt-bindings: PCI: rockchip,rk3399-pcie: Add missing maxItems to ep-gpios Revert "genirq/msi: Provide constants for PCI/IMS support" Revert "x86/apic/msi: Enable PCI/IMS" Revert "iommu/vt-d: Enable PCI/IMS" Revert "iommu/amd: Enable PCI/IMS" Revert "PCI/MSI: Provide IMS (Interrupt Message Store) support" ...
2024-05-10Merge 6.9-rc7 into usb-nextGreg Kroah-Hartman2-4/+9
We want the USB fixes in here as well, and resolve a merge conflict in drivers/usb/dwc3/core.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-05-04usb: core: Remove the useless struct usb_devmap which is just a bitmapChristophe JAILLET2-7/+6
struct usb_devmap is really just a bitmap. No need to have a dedicated structure for that. Simplify code and use DECLARE_BITMAP() directly instead. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/1d818575ff7a1e8317674aecf761ee23c89fdc84.1714815990.git.christophe.jaillet@wanadoo.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-05-03USB: usb_parse_endpoint: ignore reserved bitsOliver Neukum1-4/+4
Reading bEndpointAddress the spec tells is that: b7 is direction, which must be ignored b6:4 are reserved which are to be set to zero b3:0 are the endpoint address In order to be backwards compatible with possible future versions of USB we have to be ready with devices using those bits. That means that we also have to ignore them like we do with the direction bit. In consequence the only illegal address you can encoding in four bits is endpoint zero, for which no descriptor must exist. Hence the check for exceeding the upper limit on endpoint addresses is removed. Signed-off-by: Oliver Neukum <oneukum@suse.com> Reviewed-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20240502115259.31076-1-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-04-30usb: Fix regression caused by invalid ep0 maxpacket in virtual SuperSpeed deviceAlan Stern1-2/+3
A virtual SuperSpeed device in the FreeBSD BVCP package (https://bhyve.npulse.net/) presents an invalid ep0 maxpacket size of 256. It stopped working with Linux following a recent commit because now we check these sizes more carefully than before. Fix this regression by using the bMaxpacketSize0 value in the device descriptor for SuperSpeed or faster devices, even if it is invalid. This is a very simple-minded change; we might want to check more carefully for values that actually make some sense (for instance, no smaller than 64). Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-and-tested-by: Roger Whittaker <roger.whittaker@suse.com> Closes: https://bugzilla.suse.com/show_bug.cgi?id=1220569 Link: https://lore.kernel.org/linux-usb/9efbd569-7059-4575-983f-0ea30df41871@suse.com/ Fixes: 59cf44575456 ("USB: core: Fix oversight in SuperSpeed initialization") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/4058ac05-237c-4db4-9ecc-5af42bdb4501@rowland.harvard.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>