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*-----. Merge branches 'acpi-scan', 'acpi-pm', 'acpi-resource' and 'acpi-ec'Rafael J. Wysocki2023-06-265-103/+85
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge ACPI device enumeration changes, ACPI power management update, ACPI resources management updates and an EC driver update for 6.5-rc1: - Reduce ACPI device enumeration overhead related to devices with dependencies (Rafael Wysocki). - Fix the handling of Microsoft LPS0 _DSM for suspend-to-idle (Mario Limonciello). - Fix section mismatch warning in the ACPI suspend-to-idle code (Arnd Bergmann). - Drop several ACPI resource management quirks related to IRQ ovverides on AMD "Zen" systems (Mario Limonciello). - Modify the ACPI EC driver to make it only clear the EC GPE status when handling the GPE (Jeremy Compostella). * acpi-scan: ACPI: scan: Reduce overhead related to devices with dependencies * acpi-pm: ACPI: x86: s2idle: Adjust Microsoft LPS0 _DSM handling sequence ACPI: PM: s2idle: fix section mismatch warning * acpi-resource: ACPI: resource: Remove "Zen" specific match and quirks * acpi-ec: ACPI: EC: Clear GPE on interrupt handling only
| | | | * ACPI: EC: Clear GPE on interrupt handling onlyCompostella, Jeremy2023-06-121-15/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On multiple devices I work on, we noticed that /sys/firmware/acpi/interrupts/sci_not is non-zero and keeps increasing over time. It turns out that there is a race condition between servicing a GPE interrupt and handling task driven transactions. If a GPE interrupt is received at the same time ec_poll() is running, the advance_transaction() clears the GPE flag and the interrupt is not serviced as acpi_ev_detect_gpe() relies on the GPE flag to call the handler. As a result, `sci_not' is increased. To address this, move the GPE status check and clearing from advance_transaction() directly into acpi_ec_handle_interrupt(), so the EC GPE only gets cleared in the interrupt handling path. Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com> [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | | * | ACPI: resource: Remove "Zen" specific match and quirksMario Limonciello2023-06-051-60/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 9946e39fe8d0 ("ACPI: resource: skip IRQ override on AMD Zen platforms") attempted to overhaul the override logic so it didn't apply on X86 AMD Zen systems. This was intentional so that systems would prefer DSDT values instead of default MADT value for IRQ 1 on Ryzen 6000 systems which typically uses ActiveLow for IRQ1. This turned out to be a bad assumption because several vendors add Interrupt Source Override but don't fix the DSDT. A pile of quirks was collecting that proved this wasn't sustaintable. Furthermore some vendors have used ActiveHigh for IRQ1. To solve this problem revert the following commits: * commit 17bb7046e7ce ("ACPI: resource: Do IRQ override on all TongFang GMxRGxx") * commit f3cb9b740869 ("ACPI: resource: do IRQ override on Lenovo 14ALC7") * commit bfcdf58380b1 ("ACPI: resource: do IRQ override on LENOVO IdeaPad") * commit 7592b79ba4a9 ("ACPI: resource: do IRQ override on XMG Core 15") * commit 9946e39fe8d0 ("ACPI: resource: skip IRQ override on AMD Zen platforms") Reported-by: evilsnoo@proton.me Link: https://bugzilla.kernel.org/show_bug.cgi?id=217394 Reported-by: ruinairas1992@gmail.com Link: https://bugzilla.kernel.org/show_bug.cgi?id=217406 Reported-by: nmschulte@gmail.com Link: https://bugzilla.kernel.org/show_bug.cgi?id=217336 Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Tested-by: Werner Sembach <wse@tuxedocomputers.com> Tested-by: Chuanhong Guo <gch981213@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | ACPI: x86: s2idle: Adjust Microsoft LPS0 _DSM handling sequenceMario Limonciello2023-06-051-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In Windows the Microsoft _DSM doesn't call functions 3->5->7 for suspend and 8->6->4 for resume like Linux currently does. Rather it calls 3->7->5 for suspend and 6->8->4 for resume. Align this calling order for Linux as well. Link: https://learn.microsoft.com/en-us/windows-hardware/design/device-experiences/modern-standby-states Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | ACPI: PM: s2idle: fix section mismatch warningArnd Bergmann2023-06-051-1/+1
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The acpi_sleep_suspend_setup() function is missing an __init annotation, which causes a warning in rare configurations that end up not inlining it into its caller: WARNING: modpost: vmlinux.o: section mismatch in reference: acpi_sleep_suspend_setup (section: .text) -> acpi_s2idle_setup (section: .init.text) It's only called from an __init function, so adding the annotation is correct here. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * / / ACPI: scan: Reduce overhead related to devices with dependenciesRafael J. Wysocki2023-06-051-20/+61
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Notice that all of the objects for which the acpi_scan_check_dep() return value is greater than 0 are present in acpi_dep_list as consumers (there may be multiple entries for one object, but that is not a problem), so after carrying out the initial ACPI namespace walk in which devices with dependencies are skipped, acpi_bus_scan() can simply walk acpi_dep_list and enumerate all of the unique consumer objects from there and their descendants instead of walking the entire target branch of the ACPI namespace and looking for device objects that have not been enumerated yet in it. Because walking acpi_dep_list is generally less overhead than walking the entire ACPI namespace, use the observation above to reduce the system initialization overhead related to ACPI, which is particularly important on large systems. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com>
* | | Merge tag 'acpi-6.4-rc8' of ↵Linus Torvalds2023-06-212-6/+12
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fix from Rafael Wysocki: "Fix a kernel crash during early resume from ACPI S3 that has been present since the 5.15 cycle when might_sleep() was added to down_timeout(), which in some configurations of the kernel caused an implicit preemption point to trigger at a wrong time" * tag 'acpi-6.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: sleep: Avoid breaking S3 wakeup due to might_sleep()
| * | | ACPI: sleep: Avoid breaking S3 wakeup due to might_sleep()Rafael J. Wysocki2023-06-152-6/+12
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The addition of might_sleep() to down_timeout() caused the latter to enable interrupts unconditionally in some cases, which in turn broke the ACPI S3 wakeup path in acpi_suspend_enter(), where down_timeout() is called by acpi_disable_all_gpes() via acpi_ut_acquire_mutex(). Namely, if CONFIG_DEBUG_ATOMIC_SLEEP is set, might_sleep() causes might_resched() to be used and if CONFIG_PREEMPT_VOLUNTARY is set, this triggers __cond_resched() which may call preempt_schedule_common(), so __schedule() gets invoked and it ends up with enabled interrupts (in the prev == next case). Now, enabling interrupts early in the S3 wakeup path causes the kernel to crash. Address this by modifying acpi_suspend_enter() to disable GPEs without attempting to acquire the sleeping lock which is not needed in that code path anyway. Fixes: 99409b935c9a ("locking/semaphore: Add might_sleep() to down_*() family") Reported-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: 5.15+ <stable@vger.kernel.org> # 5.15+
* | | Merge tag 'thermal-6.4-rc8' of ↵Linus Torvalds2023-06-211-1/+1
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull thermal control fix from Rafael Wysocki: "Fix a regression introduced during the 6.3 cycle causing intel_soc_dts_iosf to report incorrect temperature values due to a coding mistake (Hans de Goede)" * tag 'thermal-6.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: thermal/intel/intel_soc_dts_iosf: Fix reporting wrong temperatures
| * | | thermal/intel/intel_soc_dts_iosf: Fix reporting wrong temperaturesHans de Goede2023-06-151-1/+1
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 955fb8719efb ("thermal/intel/intel_soc_dts_iosf: Use Intel TCC library") intel_soc_dts_iosf is reporting the wrong temperature. The driver expects tj_max to be in milli-degrees-celcius but after the switch to the TCC library this is now in degrees celcius so instead of e.g. 90000 it is set to 90 causing a temperature 45 degrees below tj_max to be reported as -44910 milli-degrees instead of as 45000 milli-degrees. Fix this by adding back the lost factor of 1000. Fixes: 955fb8719efb ("thermal/intel/intel_soc_dts_iosf: Use Intel TCC library") Reported-by: Bernhard Krug <b.krug@elektronenpumpe.de> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Zhang Rui <rui.zhang@intel.com> Cc: 6.3+ <stable@vger.kernel.org> # 6.3+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | | Merge tag 'hyperv-fixes-signed-20230619' of ↵Linus Torvalds2023-06-204-86/+124
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull hyperv fixes from Wei Liu: - Fix races in Hyper-V PCI controller (Dexuan Cui) - Fix handling of hyperv_pcpu_input_arg (Michael Kelley) - Fix vmbus_wait_for_unload to scan present CPUs (Michael Kelley) - Call hv_synic_free in the failure path of hv_synic_alloc (Dexuan Cui) - Add noop for real mode handlers for virtual trust level code (Saurabh Sengar) * tag 'hyperv-fixes-signed-20230619' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: PCI: hv: Add a per-bus mutex state_lock Revert "PCI: hv: Fix a timing issue which causes kdump to fail occasionally" PCI: hv: Remove the useless hv_pcichild_state from struct hv_pci_dev PCI: hv: Fix a race condition in hv_irq_unmask() that can cause panic PCI: hv: Fix a race condition bug in hv_pci_query_relations() arm64/hyperv: Use CPUHP_AP_HYPERV_ONLINE state to fix CPU online sequencing x86/hyperv: Fix hyperv_pcpu_input_arg handling when CPUs go online/offline Drivers: hv: vmbus: Fix vmbus_wait_for_unload() to scan present CPUs Drivers: hv: vmbus: Call hv_synic_free() if hv_synic_alloc() fails x86/hyperv/vtl: Add noop for realmode pointers
| * | | PCI: hv: Add a per-bus mutex state_lockDexuan Cui2023-06-181-3/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the case of fast device addition/removal, it's possible that hv_eject_device_work() can start to run before create_root_hv_pci_bus() starts to run; as a result, the pci_get_domain_bus_and_slot() in hv_eject_device_work() can return a 'pdev' of NULL, and hv_eject_device_work() can remove the 'hpdev', and immediately send a message PCI_EJECTION_COMPLETE to the host, and the host immediately unassigns the PCI device from the guest; meanwhile, create_root_hv_pci_bus() and the PCI device driver can be probing the dead PCI device and reporting timeout errors. Fix the issue by adding a per-bus mutex 'state_lock' and grabbing the mutex before powering on the PCI bus in hv_pci_enter_d0(): when hv_eject_device_work() starts to run, it's able to find the 'pdev' and call pci_stop_and_remove_bus_device(pdev): if the PCI device driver has loaded, the PCI device driver's probe() function is already called in create_root_hv_pci_bus() -> pci_bus_add_devices(), and now hv_eject_device_work() -> pci_stop_and_remove_bus_device() is able to call the PCI device driver's remove() function and remove the device reliably; if the PCI device driver hasn't loaded yet, the function call hv_eject_device_work() -> pci_stop_and_remove_bus_device() is able to remove the PCI device reliably and the PCI device driver's probe() function won't be called; if the PCI device driver's probe() is already running (e.g., systemd-udev is loading the PCI device driver), it must be holding the per-device lock, and after the probe() finishes and releases the lock, hv_eject_device_work() -> pci_stop_and_remove_bus_device() is able to proceed to remove the device reliably. Fixes: 4daace0d8ce8 ("PCI: hv: Add paravirtual PCI front-end for Microsoft Hyper-V VMs") Signed-off-by: Dexuan Cui <decui@microsoft.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Acked-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230615044451.5580-6-decui@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
| * | | Revert "PCI: hv: Fix a timing issue which causes kdump to fail occasionally"Dexuan Cui2023-06-181-37/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit d6af2ed29c7c1c311b96dac989dcb991e90ee195. The statement "the hv_pci_bus_exit() call releases structures of all its child devices" in commit d6af2ed29c7c is not true: in the path hv_pci_probe() -> hv_pci_enter_d0() -> hv_pci_bus_exit(hdev, true): the parameter "keep_devs" is true, so hv_pci_bus_exit() does *not* release the child "struct hv_pci_dev *hpdev" that is created earlier in pci_devices_present_work() -> new_pcichild_device(). The commit d6af2ed29c7c was originally made in July 2020 for RHEL 7.7, where the old version of hv_pci_bus_exit() was used; when the commit was rebased and merged into the upstream, people didn't notice that it's not really necessary. The commit itself doesn't cause any issue, but it makes hv_pci_probe() more complicated. Revert it to facilitate some upcoming changes to hv_pci_probe(). Signed-off-by: Dexuan Cui <decui@microsoft.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Acked-by: Wei Hu <weh@microsoft.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230615044451.5580-5-decui@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
| * | | PCI: hv: Remove the useless hv_pcichild_state from struct hv_pci_devDexuan Cui2023-06-181-12/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The hpdev->state is never really useful. The only use in hv_pci_eject_device() and hv_eject_device_work() is not really necessary. Signed-off-by: Dexuan Cui <decui@microsoft.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Acked-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230615044451.5580-4-decui@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
| * | | PCI: hv: Fix a race condition in hv_irq_unmask() that can cause panicDexuan Cui2023-06-181-6/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the host tries to remove a PCI device, the host first sends a PCI_EJECT message to the guest, and the guest is supposed to gracefully remove the PCI device and send a PCI_EJECTION_COMPLETE message to the host; the host then sends a VMBus message CHANNELMSG_RESCIND_CHANNELOFFER to the guest (when the guest receives this message, the device is already unassigned from the guest) and the guest can do some final cleanup work; if the guest fails to respond to the PCI_EJECT message within one minute, the host sends the VMBus message CHANNELMSG_RESCIND_CHANNELOFFER and removes the PCI device forcibly. In the case of fast device addition/removal, it's possible that the PCI device driver is still configuring MSI-X interrupts when the guest receives the PCI_EJECT message; the channel callback calls hv_pci_eject_device(), which sets hpdev->state to hv_pcichild_ejecting, and schedules a work hv_eject_device_work(); if the PCI device driver is calling pci_alloc_irq_vectors() -> ... -> hv_compose_msi_msg(), we can break the while loop in hv_compose_msi_msg() due to the updated hpdev->state, and leave data->chip_data with its default value of NULL; later, when the PCI device driver calls request_irq() -> ... -> hv_irq_unmask(), the guest crashes in hv_arch_irq_unmask() due to data->chip_data being NULL. Fix the issue by not testing hpdev->state in the while loop: when the guest receives PCI_EJECT, the device is still assigned to the guest, and the guest has one minute to finish the device removal gracefully. We don't really need to (and we should not) test hpdev->state in the loop. Fixes: de0aa7b2f97d ("PCI: hv: Fix 2 hang issues in hv_compose_msi_msg()") Signed-off-by: Dexuan Cui <decui@microsoft.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230615044451.5580-3-decui@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
| * | | PCI: hv: Fix a race condition bug in hv_pci_query_relations()Dexuan Cui2023-06-181-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since day 1 of the driver, there has been a race between hv_pci_query_relations() and survey_child_resources(): during fast device hotplug, hv_pci_query_relations() may error out due to device-remove and the stack variable 'comp' is no longer valid; however, pci_devices_present_work() -> survey_child_resources() -> complete() may be running on another CPU and accessing the no-longer-valid 'comp'. Fix the race by flushing the workqueue before we exit from hv_pci_query_relations(). Fixes: 4daace0d8ce8 ("PCI: hv: Add paravirtual PCI front-end for Microsoft Hyper-V VMs") Signed-off-by: Dexuan Cui <decui@microsoft.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Acked-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230615044451.5580-2-decui@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
| * | | x86/hyperv: Fix hyperv_pcpu_input_arg handling when CPUs go online/offlineMichael Kelley2023-06-181-24/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These commits a494aef23dfc ("PCI: hv: Replace retarget_msi_interrupt_params with hyperv_pcpu_input_arg") 2c6ba4216844 ("PCI: hv: Enable PCI pass-thru devices in Confidential VMs") update the Hyper-V virtual PCI driver to use the hyperv_pcpu_input_arg because that memory will be correctly marked as decrypted or encrypted for all VM types (CoCo or normal). But problems ensue when CPUs in the VM go online or offline after virtual PCI devices have been configured. When a CPU is brought online, the hyperv_pcpu_input_arg for that CPU is initialized by hv_cpu_init() running under state CPUHP_AP_ONLINE_DYN. But this state occurs after state CPUHP_AP_IRQ_AFFINITY_ONLINE, which may call the virtual PCI driver and fault trying to use the as yet uninitialized hyperv_pcpu_input_arg. A similar problem occurs in a CoCo VM if the MMIO read and write hypercalls are used from state CPUHP_AP_IRQ_AFFINITY_ONLINE. When a CPU is taken offline, IRQs may be reassigned in state CPUHP_TEARDOWN_CPU. Again, the virtual PCI driver may fault trying to use the hyperv_pcpu_input_arg that has already been freed by a higher state. Fix the onlining problem by adding state CPUHP_AP_HYPERV_ONLINE immediately after CPUHP_AP_ONLINE_IDLE (similar to CPUHP_AP_KVM_ONLINE) and before CPUHP_AP_IRQ_AFFINITY_ONLINE. Use this new state for Hyper-V initialization so that hyperv_pcpu_input_arg is allocated early enough. Fix the offlining problem by not freeing hyperv_pcpu_input_arg when a CPU goes offline. Retain the allocated memory, and reuse it if the CPU comes back online later. Signed-off-by: Michael Kelley <mikelley@microsoft.com> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Dexuan Cui <decui@microsoft.com> Link: https://lore.kernel.org/r/1684862062-51576-1-git-send-email-mikelley@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
| * | | Drivers: hv: vmbus: Fix vmbus_wait_for_unload() to scan present CPUsMichael Kelley2023-05-231-2/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | vmbus_wait_for_unload() may be called in the panic path after other CPUs are stopped. vmbus_wait_for_unload() currently loops through online CPUs looking for the UNLOAD response message. But the values of CONFIG_KEXEC_CORE and crash_kexec_post_notifiers affect the path used to stop the other CPUs, and in one of the paths the stopped CPUs are removed from cpu_online_mask. This removal happens in both x86/x64 and arm64 architectures. In such a case, vmbus_wait_for_unload() only checks the panic'ing CPU, and misses the UNLOAD response message except when the panic'ing CPU is CPU 0. vmbus_wait_for_unload() eventually times out, but only after waiting 100 seconds. Fix this by looping through *present* CPUs in vmbus_wait_for_unload(). The cpu_present_mask is not modified by stopping the other CPUs in the panic path, nor should it be. Also, in a CoCo VM the synic_message_page is not allocated in hv_synic_alloc(), but is set and cleared in hv_synic_enable_regs() and hv_synic_disable_regs() such that it is set only when the CPU is online. If not all present CPUs are online when vmbus_wait_for_unload() is called, the synic_message_page might be NULL. Add a check for this. Fixes: cd95aad55793 ("Drivers: hv: vmbus: handle various crash scenarios") Cc: stable@vger.kernel.org Reported-by: John Starks <jostarks@microsoft.com> Signed-off-by: Michael Kelley <mikelley@microsoft.com> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Link: https://lore.kernel.org/r/1684422832-38476-1-git-send-email-mikelley@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
| * | | Drivers: hv: vmbus: Call hv_synic_free() if hv_synic_alloc() failsDexuan Cui2023-05-081-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 572086325ce9 ("Drivers: hv: vmbus: Cleanup synic memory free path") says "Any memory allocations that succeeded will be freed when the caller cleans up by calling hv_synic_free()", but if the get_zeroed_page() in hv_synic_alloc() fails, currently hv_synic_free() is not really called in vmbus_bus_init(), consequently there will be a memory leak, e.g. hv_context.hv_numa_map is not freed in the error path. Fix this by updating the goto labels. Cc: stable@kernel.org Signed-off-by: Dexuan Cui <decui@microsoft.com> Fixes: 4df4cb9e99f8 ("x86/hyperv: Initialize clockevents earlier in CPU onlining") Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20230504224155.10484-1-decui@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
* | | | Merge tag 'scsi-fixes' of ↵Linus Torvalds2023-06-187-7/+51
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Four fixes, all in drivers: three fairly obvious small ones and a large one in aacraid to add block queue completion mapping and fix a CPU offline hang" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: lpfc: Fix incorrect big endian type assignment in bsg loopback path scsi: target: core: Fix error path in target_setup_session() scsi: storvsc: Always set no_report_opcodes scsi: aacraid: Reply queue mapping to CPUs based on IRQ affinity
| * | | | scsi: lpfc: Fix incorrect big endian type assignment in bsg loopback pathJustin Tee2023-06-151-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kernel test robot reported sparse warnings regarding incorrect type assignment for __be16 variables in bsg loopback path. Change the flagged lines to use the be16_to_cpu() and cpu_to_be16() macros appropriately. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20230614175944.3577-1-justintee8345@gmail.com Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202306110819.sDIKiGgg-lkp@intel.com/ Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * | | | scsi: target: core: Fix error path in target_setup_session()Bob Pearson2023-06-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the error exits in target_setup_session(), if a branch is taken to free_sess: transport_free_session() may call to target_free_cmd_counter() and then fall through to call target_free_cmd_counter() a second time. This can, and does, sometimes cause seg faults since the data field in cmd_cnt->refcnt has been freed in the first call. Fix this problem by simply returning after the call to transport_free_session(). The second call is redundant for those cases. Fixes: 4edba7e4a8f3 ("scsi: target: Move cmd counter allocation") Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com> Link: https://lore.kernel.org/r/20230613144259.12890-1-rpearsonhpe@gmail.com Reviewed-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * | | | scsi: storvsc: Always set no_report_opcodesMichael Kelley2023-06-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hyper-V synthetic SCSI devices do not support the MAINTENANCE_IN SCSI command, so scsi_report_opcode() always fails, resulting in messages like this: hv_storvsc <guid>: tag#205 cmd 0xa3 status: scsi 0x2 srb 0x86 hv 0xc0000001 The recently added support for command duration limits calls scsi_report_opcode() four times as each device comes online, which significantly increases the number of messages logged in a system with many disks. Fix the problem by always marking Hyper-V synthetic SCSI devices as not supporting scsi_report_opcode(). With this setting, the MAINTENANCE_IN SCSI command is not issued and no messages are logged. Signed-off-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/1686343101-18930-1-git-send-email-mikelley@microsoft.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| * | | | scsi: aacraid: Reply queue mapping to CPUs based on IRQ affinitySagar Biradar2023-06-154-3/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the I/O hang that arises because of the MSIx vector not having a mapped online CPU upon receiving completion. SCSI cmds take the blk_mq route, which is setup during init. Reserved cmds fetch the vector_no from mq_map after init is complete. Before init, they have to use 0 - as per the norm. Reviewed-by: Gilbert Wu <gilbert.wu@microchip.com> Signed-off-by: Sagar Biradar <Sagar.Biradar@microchip.com> Reviewed-by: John Garry <john.g.garry@oracle.com> Link: https://lore.kernel.org/r/20230519230834.27436-1-sagar.biradar@microchip.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* | | | | Merge tag 'ata-6.4-rc7' of ↵Linus Torvalds2023-06-183-3/+24
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata Pull ata fix from Damien Le Moal: - Avoid deadlocks on resume from sleep by delaying scsi rescan until the scsi device is also fully resumed. * tag 'ata-6.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: ata: libata-scsi: Avoid deadlock on rescan after device resume
| * | | | | ata: libata-scsi: Avoid deadlock on rescan after device resumeDamien Le Moal2023-06-183-3/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When an ATA port is resumed from sleep, the port is reset and a power management request issued to libata EH to reset the port and rescanning the device(s) attached to the port. Device rescanning is done by scheduling an ata_scsi_dev_rescan() work, which will execute scsi_rescan_device(). However, scsi_rescan_device() takes the generic device lock, which is also taken by dpm_resume() when the SCSI device is resumed as well. If a device rescan execution starts before the completion of the SCSI device resume, the rcu locking used to refresh the cached VPD pages of the device, combined with the generic device locking from scsi_rescan_device() and from dpm_resume() can cause a deadlock. Avoid this situation by changing struct ata_port scsi_rescan_task to be a delayed work instead of a simple work_struct. ata_scsi_dev_rescan() is modified to check if the SCSI device associated with the ATA device that must be rescanned is not suspended. If the SCSI device is still suspended, ata_scsi_dev_rescan() returns early and reschedule itself for execution after an arbitrary delay of 5ms. Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Reported-by: Joe Breuer <linux-kernel@jmbreuer.net> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217530 Fixes: a19a93e4c6a9 ("scsi: core: pm: Rely on the device driver core for async power management") Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Tested-by: Joe Breuer <linux-kernel@jmbreuer.net>
* | | | | | Merge tag 'staging-6.4-rc7' of ↵Linus Torvalds2023-06-171-1/+0
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver fix from Greg KH: "Here is a single staging driver "fix" for 6.4-rc7. I've been sitting on it in my tree for many weeks as it is just a simple documentation update, with the hope that maybe some other staging driver fixes would need to be merged for 6.4-final, but that does not seem to be the case. So please, pull in this one documentation update so that Aaro doesn't get emails going forward that he can't do anything about" * tag 'staging-6.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: octeon: delete my name from TODO contact
| * | | | | | staging: octeon: delete my name from TODO contactAaro Koskinen2023-05-081-1/+0
| | |_|/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I gave up using MIPS OCTEON hardware after the drivers were deleted from staging in 2019. Afterwards, the driver seems to be added back but the TODO contact name was not updated accordingly. Delete my name, as I still get mails from people asking help with the driver and their systems. Fixes: 422d97b8b05e ("Revert "staging: octeon: delete driver"") Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Link: https://lore.kernel.org/r/20230427211606.GD881984@darkstar.musicnaut.iki.fi Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | | | Merge tag 'usb-6.4-rc7' of ↵Linus Torvalds2023-06-1712-70/+198
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / Thunderbolt fixes from Greg KH: "Here are some small USB and Thunderbolt driver fixes and new device ids for 6.4-rc7 to resolve some reported problems. Included in here are: - new USB serial device ids - USB gadget core fixes for long-dissussed problems - dwc3 bugfixes for reported issues. - typec driver fixes - thunderbolt driver fixes All of these have been in linux-next this week with no reported issues" * tag 'usb-6.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: gadget: udc: core: Prevent soft_connect_store() race usb: gadget: udc: core: Offload usb_udc_vbus_handler processing usb: typec: Fix fast_role_swap_current show function usb: typec: ucsi: Fix command cancellation USB: dwc3: fix use-after-free on core driver unbind USB: dwc3: qcom: fix NULL-deref on suspend usb: dwc3: gadget: Reset num TRBs before giving back the request usb: gadget: udc: renesas_usb3: Fix RZ/V2M {modprobe,bind} error USB: serial: option: add Quectel EM061KGL series thunderbolt: Mask ring interrupt on Intel hardware as well thunderbolt: Do not touch CL state configuration during discovery thunderbolt: Increase DisplayPort Connection Manager handshake timeout thunderbolt: dma_test: Use correct value for absent rings when creating paths
| * | | | | | usb: gadget: udc: core: Prevent soft_connect_store() raceBadhri Jagan Sridharan2023-06-131-49/+106
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | usb_udc_connect_control(), soft_connect_store() and usb_gadget_deactivate() can potentially race against each other to invoke usb_gadget_connect()/usb_gadget_disconnect(). To prevent this, guard udc->started, gadget->allow_connect, gadget->deactivate and gadget->connect with connect_lock so that ->pullup() is only invoked when the gadget is bound, started and not deactivated. The routines usb_gadget_connect_locked(), usb_gadget_disconnect_locked(), usb_udc_connect_control_locked(), usb_gadget_udc_start_locked(), usb_gadget_udc_stop_locked() are called with this lock held. An earlier version of this commit was reverted due to the crash reported in https://lore.kernel.org/all/ZF4BvgsOyoKxdPFF@francesco-nb.int.toradex.com/. commit 16737e78d190 ("usb: gadget: udc: core: Offload usb_udc_vbus_handler processing") addresses the crash reported. Cc: stable@vger.kernel.org Fixes: 628ef0d273a6 ("usb: udc: add usb_udc_vbus_handler") Signed-off-by: Badhri Jagan Sridharan <badhri@google.com> Reviewed-by: Alan Stern <stern@rowland.harvard.edu> Message-ID: <20230609010227.978661-2-badhri@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | usb: gadget: udc: core: Offload usb_udc_vbus_handler processingBadhri Jagan Sridharan2023-06-131-2/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | usb_udc_vbus_handler() can be invoked from interrupt context by irq handlers of the gadget drivers, however, usb_udc_connect_control() has to run in non-atomic context due to the following: a. Some of the gadget driver implementations expect the ->pullup callback to be invoked in non-atomic context. b. usb_gadget_disconnect() acquires udc_lock which is a mutex. Hence offload invocation of usb_udc_connect_control() to workqueue. UDC should not be pulled up unless gadget driver is bound. The new flag "allow_connect" is now set by gadget_bind_driver() and cleared by gadget_unbind_driver(). This prevents work item to pull up the gadget even if queued when the gadget driver is already unbound. Cc: stable@vger.kernel.org Fixes: 1016fc0c096c ("USB: gadget: Fix obscure lockdep violation for udc_mutex") Signed-off-by: Badhri Jagan Sridharan <badhri@google.com> Reviewed-by: Alan Stern <stern@rowland.harvard.edu> Message-ID: <20230609010227.978661-1-badhri@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | usb: typec: Fix fast_role_swap_current show functionPavan Holla2023-06-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current implementation mistakenly performs a & operation on the output of sysfs_emit. This patch performs the & operation before calling sysfs_emit. Fixes: 662a60102c12 ("usb: typec: Separate USB Power Delivery from USB Type-C") Cc: stable <stable@kernel.org> Reported-by: Benson Leung <bleung@chromium.org> Signed-off-by: Pavan Holla <pholla@chromium.org> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Benson Leung <bleung@chromium.org> Message-ID: <20230607193328.3359487-1-pholla@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | usb: typec: ucsi: Fix command cancellationHeikki Krogerus2023-06-131-4/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Cancel command was passed to the write callback as the offset instead of as the actual command which caused NULL pointer dereference. Reported-by: Stephan Bolten <stephan.bolten@gmx.net> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217517 Fixes: 094902bc6a3c ("usb: typec: ucsi: Always cancel the command if PPM reports BUSY condition") Cc: stable@vger.kernel.org Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Message-ID: <20230606115802.79339-1-heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | USB: dwc3: fix use-after-free on core driver unbindJohan Hovold2023-06-131-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some dwc3 glue drivers are currently accessing the driver data of the child core device directly, which is clearly a bad idea as the child may not have probed yet or may have been unbound from its driver. As a workaround until the glue drivers have been fixed, clear the driver data pointer before allowing the glue parent device to runtime suspend to prevent its driver from accessing data that has been freed during unbind. Fixes: 6dd2565989b4 ("usb: dwc3: add imx8mp dwc3 glue layer driver") Fixes: 6895ea55c385 ("usb: dwc3: qcom: Configure wakeup interrupts during suspend") Cc: stable@vger.kernel.org # 5.12 Cc: Li Jun <jun.li@nxp.com> Cc: Sandeep Maheswaram <quic_c_sanm@quicinc.com> Cc: Krishna Kurapati <quic_kriskura@quicinc.com> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Message-ID: <20230607100540.31045-3-johan+linaro@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | USB: dwc3: qcom: fix NULL-deref on suspendJohan Hovold2023-06-131-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Qualcomm dwc3 glue driver is currently accessing the driver data of the child core device during suspend and on wakeup interrupts. This is clearly a bad idea as the child may not have probed yet or could have been unbound from its driver. The first such layering violation was part of the initial version of the driver, but this was later made worse when the hack that accesses the driver data of the grand child xhci device to configure the wakeup interrupts was added. Fixing this properly is not that easily done, so add a sanity check to make sure that the child driver data is non-NULL before dereferencing it for now. Note that this relies on subtleties like the fact that driver core is making sure that the parent is not suspended while the child is probing. Reported-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/all/20230325165217.31069-4-manivannan.sadhasivam@linaro.org/ Fixes: d9152161b4bf ("usb: dwc3: Add Qualcomm DWC3 glue layer driver") Fixes: 6895ea55c385 ("usb: dwc3: qcom: Configure wakeup interrupts during suspend") Cc: stable@vger.kernel.org # 3.18: a872ab303d5d: "usb: dwc3: qcom: fix use-after-free on runtime-PM wakeup" Cc: Sandeep Maheswaram <quic_c_sanm@quicinc.com> Cc: Krishna Kurapati <quic_kriskura@quicinc.com> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Message-ID: <20230607100540.31045-2-johan+linaro@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | usb: dwc3: gadget: Reset num TRBs before giving back the requestElson Roy Serrao2023-06-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Consider a scenario where cable disconnect happens when there is an active usb reqest queued to the UDC. As part of the disconnect we would issue an end transfer with no interrupt-on-completion before giving back this request. Since we are giving back the request without skipping TRBs the num_trbs field of dwc3_request still holds the stale value previously used. Function drivers re-use same request for a given bind-unbind session and hence their dwc3_request context gets preserved across cable disconnect/connect. When such a request gets re-queued after cable connect, we would increase the num_trbs field on top of the previous stale value thus incorrectly representing the number of TRBs used. Fix this by resetting num_trbs field before giving back the request. Fixes: 09fe1f8d7e2f ("usb: dwc3: gadget: track number of TRBs per request") Cc: stable <stable@kernel.org> Signed-off-by: Elson Roy Serrao <quic_eserrao@quicinc.com> Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Message-ID: <1685654850-8468-1-git-send-email-quic_eserrao@quicinc.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | usb: gadget: udc: renesas_usb3: Fix RZ/V2M {modprobe,bind} errorBiju Das2023-06-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently {modprobe, bind} after {rmmod, unbind} results in probe failure. genirq: Flags mismatch irq 22. 00000004 (85070400.usb3drd) vs. 00000004 (85070400.usb3drd) renesas_usb3: probe of 85070000.usb3peri failed with error -16 The reason is, it is trying to register an interrupt handler for the same IRQ twice. The devm_request_irq() was called with the parent device. So the interrupt handler won't be unregistered when the usb3-peri device is unbound. Fix this issue by replacing "parent dev"->"dev" as the irq resource is managed by this driver. Fixes: 9cad72dfc556 ("usb: gadget: Add support for RZ/V2M USB3DRD driver") Cc: stable <stable@kernel.org> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Message-ID: <20230530161720.179927-1-biju.das.jz@bp.renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | Merge tag 'usb-serial-6.4-rc6' of ↵Greg Kroah-Hartman2023-06-081-0/+16
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus Johan writes: USB-serial device ids for 6.4-rc6 Here are some new modem device ids. Everything has been in linux-next with no reported issues. * tag 'usb-serial-6.4-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: USB: serial: option: add Quectel EM061KGL series
| | * | | | | | USB: serial: option: add Quectel EM061KGL seriesJerry Meng2023-06-021-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for Quectel EM061KGL series which are based on Qualcomm SDX12 chip: EM061KGL_LTA(0x2c7c / 0x0123): MBIM + GNSS + DIAG + NMEA + AT + QDSS + DPL EM061KGL_LMS(0x2c7c / 0x0124): MBIM + GNSS + DIAG + NMEA + AT + QDSS + DPL EM061KGL_LWW(0x2c7c / 0x6008): MBIM + GNSS + DIAG + NMEA + AT + QDSS + DPL EM061KGL_LCN(0x2c7c / 0x6009): MBIM + GNSS + DIAG + NMEA + AT + QDSS + DPL Above products use the exact same interface layout and option driver is for interfaces DIAG, NMEA and AT. T: Bus=03 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#= 5 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=2c7c ProdID=6008 Rev= 5.04 S: Manufacturer=Quectel S: Product=Quectel EM061K-GL S: SerialNumber=f6fa08b6 C:* #Ifs= 8 Cfg#= 1 Atr=a0 MxPwr=500mA A: FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00 I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=32ms I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim E: Ad=8e(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=0f(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 2 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) E: Ad=82(I) Atr=03(Int.) MxPS= 64 Ivl=32ms I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=40 Driver=option E: Ad=85(I) Atr=03(Int.) MxPS= 10 Ivl=32ms E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option E: Ad=87(I) Atr=03(Int.) MxPS= 10 Ivl=32ms E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 6 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=70 Driver=(none) E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 7 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=80 Driver=(none) E: Ad=8f(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms Signed-off-by: Jerry Meng <jerry-meng@foxmail.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
| * | | | | | | Merge tag 'thunderbolt-for-v6.4-rc6' of ↵Greg Kroah-Hartman2023-06-054-13/+25
| |\ \ \ \ \ \ \ | | |_|_|_|_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-linus Mika writes: thunderbolt: Fixes for v6.4-rc6 This includes following fixes for v6.4-rc6: - Fix DMA test driver to pass correct values when only RX or TX ring is used - Increase timeout when DisplayPort tunnel is established to cope with a VGA/DVI dongle connected to a dock - Do not enable CL states when BIOS connnection manager already created the tunnels - Correct the ring interrupt masking to work again in Intel hardware on resume from system sleep states. All these have been in linux-next with no reported issues. * tag 'thunderbolt-for-v6.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt: thunderbolt: Mask ring interrupt on Intel hardware as well thunderbolt: Do not touch CL state configuration during discovery thunderbolt: Increase DisplayPort Connection Manager handshake timeout thunderbolt: dma_test: Use correct value for absent rings when creating paths
| | * | | | | | thunderbolt: Mask ring interrupt on Intel hardware as wellMika Westerberg2023-05-311-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When resuming from system sleep states the driver issues following warning on Intel hardware: thunderbolt 0000:07:00.0: interrupt for TX ring 0 is already enabled The reason for this is that the commit in question did not mask the ring interrupt on Intel hardware leaving the interrupt active. Fix this by masking it also in Intel hardware. Reported-by: beld zhang <beldzhang@gmail.com> Tested-by: beld zhang <beldzhang@gmail.com> Closes: https://lore.kernel.org/linux-usb/ZHKW5NeabmfhgLbY@debian.me/ Fixes: c4af8e3fecd0 ("thunderbolt: Clear registers properly when auto clear isn't in use") Cc: stable@vger.kernel.org Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
| | * | | | | | thunderbolt: Do not touch CL state configuration during discoveryMika Westerberg2023-05-291-5/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the boot firmware has already established tunnels, especially ones that have special requirements from the link such as DisplayPort, we should not blindly enable CL states (nor change the TMU configuration). Otherwise the existing tunnels may not work as expected. For this reason, skip the CL state enabling when we go over the existing topology. This will also keep the TMU settings untouched because we do not change the TMU configuration when CL states are not enabled. Reported-by: Koba Ko <koba.ko@canonical.com> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/7831 Cc: stable@vger.kernel.org # v6.0+ Acked-By: Yehezkel Bernat <YehezkelShB@gmail.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
| | * | | | | | thunderbolt: Increase DisplayPort Connection Manager handshake timeoutMika Westerberg2023-05-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It turns out that when plugging in VGA cable through USB-C to VGA/DVI dongle the Connection Manager handshake can take longer time, at least on Intel Titan Ridge based docks such as Dell WD91TB. This leads to following error in the dmesg: thunderbolt 0000:00:0d.3: 3:10: DP tunnel activation failed, aborting and the display stays blank (because we failed to establish the tunnel). For this reason increase the timeout to 3s. Reported-by: Koba Ko <koba.ko@canonical.com> Cc: stable@vger.kernel.org Acked-By: Yehezkel Bernat <YehezkelShB@gmail.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
| | * | | | | | thunderbolt: dma_test: Use correct value for absent rings when creating pathsMika Westerberg2023-05-221-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Both tb_xdomain_enable_paths() and tb_xdomain_disable_paths() expect -1, not 0, if the corresponding ring is not needed. For this reason change the driver to use correct value for the rings that are not needed. Fixes: 180b0689425c ("thunderbolt: Allow multiple DMA tunnels over a single XDomain connection") Cc: stable@vger.kernel.org Reported-by: Pengfei Xu <pengfei.xu@intel.com> Tested-by: Pengfei Xu <pengfei.xu@intel.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
* | | | | | | | Merge tag 'tty-6.4-rc7' of ↵Linus Torvalds2023-06-172-1/+2
|\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull serial driver fixes from Greg KH: "Here are two small serial driver fixes for 6.4-rc7 that resolve some reported problems: - lantiq serial driver irq fix - fsl_lpuart serial driver watermark fix Both of these have been in linux-next this week with no reported issues" * tag 'tty-6.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: serial: fsl_lpuart: reduce RX watermark to 0 on LS1028A serial: lantiq: add missing interrupt ack
| * | | | | | | | tty: serial: fsl_lpuart: reduce RX watermark to 0 on LS1028ARobert Hodaszi2023-06-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | LS1028A is using DMA with LPUART. Having RX watermark set to 1, means DMA transactions are started only after receiving the second character. On other platforms with newer LPUART IP, Receiver Idle Empty function initiates the DMA request after the receiver is idling for 4 characters. But this feature is missing on LS1028A, which is causing a 1-character delay in the RX direction on this platform. Set RX watermark to 0 to initiate RX DMA after each character. Link: https://lore.kernel.org/linux-serial/20230607103459.1222426-1-robert.hodaszi@digi.com/ Fixes: 9ad9df844754 ("tty: serial: fsl_lpuart: Fix the wrong RXWATER setting for rx dma case") Cc: stable <stable@kernel.org> Signed-off-by: Robert Hodaszi <robert.hodaszi@digi.com> Message-ID: <20230609121334.1878626-1-robert.hodaszi@digi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | | | serial: lantiq: add missing interrupt ackBernhard Seibold2023-06-061-0/+1
| |/ / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the error interrupt is never acknowledged, so once active it will stay active indefinitely, causing the handler to be called in an infinite loop. Fixes: 2f0fc4159a6a ("SERIAL: Lantiq: Add driver for MIPS Lantiq SOCs.") Cc: <stable@vger.kernel.org> Signed-off-by: Bernhard Seibold <mail@bernhard-seibold.de> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Message-ID: <20230602133029.546-1-mail@bernhard-seibold.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | | | | | Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds2023-06-174-6/+21
|\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "A handful of clk driver fixes: - Fix an OOB issue in the Mediatek mt8365 driver where arrays of clks are mismatched in size - Use the proper clk_ops for a few clks in the Mediatek mt8365 driver - Stop using abs() in clk_composite_determine_rate() because 64-bit math goes wrong on large unsigned long numbers that are subtracted and passed into abs() - Zero initialize a struct clk_init_data in clk-loongson2 to avoid stack junk confusing clk_hw_register() - Actually use a pointer to __iomem for writel() in pxa3xx_clk_update_accr() so we don't oops" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: pxa: fix NULL pointer dereference in pxa3xx_clk_update_accr clk: clk-loongson2: Zero init clk_init_data clk: mediatek: mt8365: Fix inverted topclk operations clk: composite: Fix handling of high clock rates clk: mediatek: mt8365: Fix index issue
| * | | | | | | | clk: pxa: fix NULL pointer dereference in pxa3xx_clk_update_accrArnd Bergmann2023-06-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sparse points out an embarrasing bug in an older patch of mine, which uses the register offset instead of an __iomem pointer: drivers/clk/pxa/clk-pxa3xx.c:167:9: sparse: sparse: Using plain integer as NULL pointer Unlike sparse, gcc and clang ignore this bug and fail to warn because a literal '0' is considered a valid representation of a NULL pointer. Fixes: 3c816d950a49 ("ARM: pxa: move clk register definitions to driver") Cc: stable@vger.kernel.org Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/oe-kbuild-all/202305111301.RAHohdob-lkp@intel.com/ Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20230511105845.299859-1-arnd@kernel.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| * | | | | | | | clk: clk-loongson2: Zero init clk_init_dataBinbin Zhou2023-06-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As clk_core_populate_parent_map() checks clk_init_data.num_parents first, and checks clk_init_data.parent_names[] before clk_init_data.parent_data[] and clk_init_data.parent_hws[]. Therefore the clk_init_data structure needs to be explicitly initialised to prevent an unexpected crash if clk_init_data.parent_names[] is a random value. CPU 0 Unable to handle kernel paging request at virtual address 0000000000000dc0, era == 9000000002986290, ra == 900000000298624c Oops[#1]: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.4.0-rc2+ #4582 pc 9000000002986290 ra 900000000298624c tp 9000000100094000 sp 9000000100097a60 a0 9000000104541e00 a1 0000000000000000 a2 0000000000000dc0 a3 0000000000000001 a4 90000001000979f0 a5 90000001800977d7 a6 0000000000000000 a7 900000000362a000 t0 90000000034f3548 t1 6f8c2a9cb5ab5f64 t2 0000000000011340 t3 90000000031cf5b0 t4 0000000000000dc0 t5 0000000000000004 t6 0000000000011300 t7 9000000104541e40 t8 000000000005a4f8 u0 9000000104541e00 s9 9000000104541e00 s0 9000000104bc4700 s1 9000000104541da8 s2 0000000000000001 s3 900000000356f9d8 s4 ffffffffffffffff s5 0000000000000000 s6 0000000000000dc0 s7 90000000030d0a88 s8 0000000000000000 ra: 900000000298624c __clk_register+0x228/0x84c ERA: 9000000002986290 __clk_register+0x26c/0x84c CRMD: 000000b0 (PLV0 -IE -DA +PG DACF=CC DACM=CC -WE) PRMD: 00000004 (PPLV0 +PIE -PWE) EUEN: 00000000 (-FPE -SXE -ASXE -BTE) ECFG: 00071c1c (LIE=2-4,10-12 VS=7) ESTAT: 00010000 [PIL] (IS= ECode=1 EsubCode=0) BADV: 0000000000000dc0 PRID: 0014a000 (Loongson-64bit, ) Modules linked in: Process swapper/0 (pid: 1, threadinfo=(____ptrval____), task=(____ptrval____)) Stack : 90000000031c1810 90000000030d0a88 900000000325bac0 90000000034f3548 90000001002ab410 9000000104541e00 0000000000000dc0 9000000003150098 90000000031c1810 90000000031a0460 900000000362a000 90000001002ab410 900000000362a000 9000000104541da8 9000000104541de8 90000001002ab410 900000000362a000 9000000002986a68 90000000034f3ed8 90000000030d0aa8 9000000104541da8 900000000298d3b8 90000000031c1810 0000000000000000 90000000034f3ed8 90000000030d0aa8 0000000000000dc0 90000000030d0a88 90000001002ab410 900000000298d401 0000000000000000 6f8c2a9cb5ab5f64 90000000034f4000 90000000030d0a88 9000000003a48a58 90000001002ab410 9000000104bd81a8 900000000298d484 9000000100020260 0000000000000000 ... Call Trace: [<9000000002986290>] __clk_register+0x26c/0x84c [<9000000002986a68>] devm_clk_hw_register+0x5c/0xe0 [<900000000298d3b8>] loongson2_clk_register.constprop.0+0xdc/0x10c [<900000000298d484>] loongson2_clk_probe+0x9c/0x4ac [<9000000002a4eba4>] platform_probe+0x68/0xc8 [<9000000002a4bf80>] really_probe+0xbc/0x2f0 [<9000000002a4c23c>] __driver_probe_device+0x88/0x128 [<9000000002a4c318>] driver_probe_device+0x3c/0x11c [<9000000002a4c5dc>] __driver_attach+0x98/0x18c [<9000000002a49ca0>] bus_for_each_dev+0x80/0xe0 [<9000000002a4b0dc>] bus_add_driver+0xfc/0x1ec [<9000000002a4d4a8>] driver_register+0x68/0x134 [<90000000020f0110>] do_one_initcall+0x50/0x188 [<9000000003150f00>] kernel_init_freeable+0x224/0x294 [<90000000030240fc>] kernel_init+0x20/0x110 [<90000000020f1568>] ret_from_kernel_thread+0xc/0xa4 Fixes: acc0ccffec50 ("clk: clk-loongson2: add clock controller driver support") Cc: stable@vger.kernel.org Cc: Yinbo Zhu <zhuyinbo@loongson.cn> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Link: https://lore.kernel.org/r/20230524014924.2869051-1-zhoubinbin@loongson.cn Signed-off-by: Stephen Boyd <sboyd@kernel.org>