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2021-08-29habanalabs: fix nullifying of destroyed mmu pgt poolTomer Tayar1-6/+6
In case of host-resident MMU, when the page tables pool is destroyed, its pointer is not nullified correctly. As a result, on a device fini which happens after a failing reset, the already destroyed pool is accessed, which leads to a kernel panic. The patch fixes the setting of the pool pointer to NULL. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs: rename cb_mmap to mmapZvika Yehudai4-7/+7
This function will be used for more mmap operations than just mmaping CBs. Signed-off-by: Zvika Yehudai <zyehudai@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs: missing mutex_unlock in process kill procedureOfir Bitton1-0/+1
missing mutex unlock once driver is giving up killing user processes. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs/gaudi: implement state dumpYuri Nudelman4-11/+319
At the first stage, only gaudi core dump shall be implemented, not including the status registers. Signed-off-by: Yuri Nudelman <ynudelman@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs: state dump monitors and fences infrastructureYuri Nudelman4-23/+376
With the infrastructure in place, monitors and fences dump shall be implemented. Signed-off-by: Yuri Nudelman <ynudelman@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs: expose state dumpYuri Nudelman8-3/+731
To improve the user's ability to debug the case where a workload that is part of executing training/inference of a topology is getting stuck, we need to add a 'core dump' each time a CS times-out. The 'core dump' shall contain all relevant Sync Manager information and corresponding fence values. The most recent dumps shall be accessible via debugfs, under 'state_dump' node. Reading from the node will provide the oldest dump available. Writing an integer value X will discard X dumps, starting with the oldest one, i.e. subsequent read will now return newer dumps. Signed-off-by: Yuri Nudelman <ynudelman@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs: use get_task_pid() to take PIDOded Gabbay2-2/+6
The previous function we used, find_get_pid(), wasn't good in case the user process was run inside docker. As a result, we didn't had the PID and we couldn't kill the user process in case the device got stuck and we needed to reset the device. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs: allow disabling huge page useOded Gabbay1-13/+23
Sometimes we may need to disable optimization of using huge pages in our memory management code. Add such a flag to the function that creates the list of physical pages that would be programmed into the device MMU. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs: user mappings can be 64-bitOded Gabbay2-3/+3
Increase the size variable in the userptr structure to 64-bit. That variable describes the size of the memory allocation of the user that is now being mapped into the device. The mapping can be larger than 4GB, so we need to support it. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs: handle case of interruptable waitOded Gabbay1-2/+9
Same as we handle it in the regular wait for CS, we need to handle the case where the waiting for user interrupt was interrupted. In that case, we need to return correct error code to the user. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs: release pending user interrupts on device finiOded Gabbay1-54/+46
In device fini there was missing a call to release all pending user interrupts. That can cause a process to be stuck inside the driver's IOCTL of wait for interrupts, in case the device is removed or simulator is killed at the same time. In addition, also call to remove inactive codec job was missing. Moreover, to prevent such errors in the future (where code is added to reset path but not to device fini), we moved some common parts to two dedicated functions: cleanup_resources take_release_locks Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs: re-init completion object upon retryOded Gabbay1-1/+12
In case user interrupt arrived but the completion value is less than the target value, we want to retry the wait. However, before the retry we must reinitialize the completion object, under spin-lock, so the wait function won't exit immediately because the completion object is already completed (from the previous interrupt). Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs: rename enum vm_type_t to vm_typeOded Gabbay3-14/+12
We don't use typedefs so the enum name shouldn't end with _t Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs: update firmware header filesOfir Bitton3-8/+33
Update recent changes made in firmware header files, which contain a minor COMMS protocol change and new error status definitions. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs: allow fail on inability to respect hintYuri Nudelman1-3/+42
A new user flag is required to make memory map hint mandatory, in contrast to the current situation where it is best effort. This is due to the requirement to map certain data to specific pre-determined device virtual address ranges. Signed-off-by: Yuri Nudelman <ynudelman@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-29habanalabs: support hint addresses range reservationfarah kassabri2-8/+76
Add support for pre-determined driver-reserved device VA address ranges. This is needed for future ASIC support where some contents must be mapped into these pre-determined ranges because the H/W will be configured using these ranges. In case the user asks to map a VA without a hint address, avoid allocating the device VA from the reserved ranges. Make sure the validation checks of the hint address take into account situation where the DRAM page size is not pow of 2. Signed-off-by: farah kassabri <fkassabri@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-08-27misc/pvpanic: fix set driver dataMihai Carabas1-0/+2
Add again dev_set_drvdata(), but this time in devm_pvpanic_probe(), in order for dev_get_drvdata() to not return NULL. Fixes: 394febc9d0a6 ("misc/pvpanic: Make 'pvpanic_probe()' resource managed") Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mihai Carabas <mihai.carabas@oracle.com> Link: https://lore.kernel.org/r/1629385946-4584-2-git-send-email-mihai.carabas@oracle.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-27VMCI: fix NULL pointer dereference when unmapping queue pairWang Hai1-2/+4
I got a NULL pointer dereference report when doing fuzz test: Call Trace: qp_release_pages+0xae/0x130 qp_host_unregister_user_memory.isra.25+0x2d/0x80 vmci_qp_broker_unmap+0x191/0x320 ? vmci_host_do_alloc_queuepair.isra.9+0x1c0/0x1c0 vmci_host_unlocked_ioctl+0x59f/0xd50 ? do_vfs_ioctl+0x14b/0xa10 ? tomoyo_file_ioctl+0x28/0x30 ? vmci_host_do_alloc_queuepair.isra.9+0x1c0/0x1c0 __x64_sys_ioctl+0xea/0x120 do_syscall_64+0x34/0xb0 entry_SYSCALL_64_after_hwframe+0x44/0xae When a queue pair is created by the following call, it will not register the user memory if the page_store is NULL, and the entry->state will be set to VMCIQPB_CREATED_NO_MEM. vmci_host_unlocked_ioctl vmci_host_do_alloc_queuepair vmci_qp_broker_alloc qp_broker_alloc qp_broker_create // set entry->state = VMCIQPB_CREATED_NO_MEM; When unmapping this queue pair, qp_host_unregister_user_memory() will be called to unregister the non-existent user memory, which will result in a null pointer reference. It will also change VMCIQPB_CREATED_NO_MEM to VMCIQPB_CREATED_MEM, which should not be present in this operation. Only when the qp broker has mem, it can unregister the user memory when unmapping the qp broker. Only when the qp broker has no mem, it can register the user memory when mapping the qp broker. Fixes: 06164d2b72aa ("VMCI: queue pairs implementation.") Cc: stable <stable@vger.kernel.org> Reported-by: Hulk Robot <hulkci@huawei.com> Reviewed-by: Jorgen Hansen <jhansen@vmware.com> Signed-off-by: Wang Hai <wanghai38@huawei.com> Link: https://lore.kernel.org/r/20210818124845.488312-1-wanghai38@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-26platform/x86: hp_accel: Remove _INI method callAndy Shevchenko1-1/+0
According to ACPI specification the _INI method must be called when device is enumerated first time. After that there is no need to repeat the procedure. Convert the lis3lv02d_acpi_init() to be a stub (Note, we may not remove it because it is called unconditionally by the accelerometer main driver). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://lore.kernel.org/r/20210823093222.19544-2-andriy.shevchenko@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-08-19misc: pci_endpoint_test: Add deviceID for AM64 and J7200Kishon Vijay Abraham I1-0/+8
Add device ID specific to AM64 and J7200 in pci_endpoint_test so that endpoints configured with those deviceIDs can use pci_endpoint_test driver. Link: https://lore.kernel.org/r/20210811123336.31357-6-kishon@ti.com Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2021-08-19misc: pci_endpoint_test: Populate sriov_configure ops to configure SR-IOV deviceKishon Vijay Abraham I1-0/+1
Populate sriov_configure ops with pci_sriov_configure_simple to configure SR-IOV device. Link: https://lore.kernel.org/r/20210819123343.1951-8-kishon@ti.com Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2021-08-19lkdtm: remove IDE_CORE_CP crashpointKevin Mitchell1-1/+0
With the removal of the legacy IDE driver in kb7fb14d3ac63 ("ide: remove the legacy ide driver"), this crashpoint no longer points to a valid function. Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Kevin Mitchell <kevmitch@arista.com> Link: https://lore.kernel.org/r/20210819022940.561875-3-kevmitch@arista.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-19lkdtm: replace SCSI_DISPATCH_CMD with SCSI_QUEUE_RQKevin Mitchell1-1/+1
When scsi_dispatch_cmd was moved to scsi_lib.c and made static, some compilers (i.e., at least gcc 8.4.0) decided to compile this inline. This is a problem for lkdtm.ko, which inserted a kprobe on this function for the SCSI_DISPATCH_CMD crashpoint. Move this crashpoint one function up the call chain to scsi_queue_rq. Though this is also a static function, it should never be inlined because it is assigned as a structure entry. Therefore, kprobe_register should always be able to find it. Fixes: 82042a2cdb55 ("scsi: move scsi_dispatch_cmd to scsi_lib.c") Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Kevin Mitchell <kevmitch@arista.com> Link: https://lore.kernel.org/r/20210819022940.561875-2-kevmitch@arista.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-18lkdtm/heap: Avoid __alloc_size hint warning for VMALLOC_LINEAR_OVERFLOWKees Cook1-1/+8
Once __alloc_size hints have been added, the compiler will (correctly!) see this as an overflow. We are, however, trying to test for this condition at run-time (not compile-time), so work around it with a volatile int offset. Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210818174855.2307828-5-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-18lkdtm: Add kernel version to failure hintsKees Cook1-8/+12
In an effort to keep as much information in once place as possible in CI logs, report the kernel version and architecture in the failure hints. Cc: Arnd Bergmann <arnd@arndb.de> Cc: kernelci@groups.io Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210818174855.2307828-4-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-18lkdtm/fortify: Consolidate FORTIFY_SOURCE testsKees Cook4-54/+57
The FORTIFY_SOURCE tests were split between bugs.c and fortify.c. Move tests into fortify.c, standardize their naming, add CONFIG hints, and add them to the lkdtm selftests. Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210818174855.2307828-3-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-18lkdtm/bugs: Add ARRAY_BOUNDS to selftestsKees Cook1-0/+1
Add CONFIG hints about why the ARRAY_BOUNDS test might fail, and similarly include the CONFIGs needed to pass the ARRAY_BOUNDS test via the selftests, and add to selftests. Cc: kernelci@groups.io Suggested-by: Guillaume Tucker <guillaume.tucker@collabora.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210818174855.2307828-2-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-16misc: gehc-achc: Fix spelling mistake "Verfication" -> "Verification"Colin Ian King1-1/+1
There is a spelling mistake in a dev_dbg debug message. Fix it. Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20210815214206.47970-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-09Merge 5.14-rc5 into staging-nextGreg Kroah-Hartman1-10/+7
We need the staging fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-09Merge 5.14-rc5 into tty-nextGreg Kroah-Hartman1-10/+7
We need the tty/serial fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-05misc: gehc-achc: new driverSebastian Reichel3-0/+578
General Electric Healthcare's PPD has a secondary processor from NXP's Kinetis K20 series. That device has two SPI chip selects: The main interface's behaviour depends on the loaded firmware and is currently unused. The secondary interface can be used to update the firmware using EzPort protocol. This is implemented by this driver using the kernel's firmware API. The firmware is being flashed into non-volatile flash memory, so it is enough to flash it once and not on every boot. Flashing will wear the flash memory (it has a life time of at least 10k programming cycles). At the same time only occasional FW updates are expected (like e.g. a BIOS update). Thus the firmware update is triggered via sysfs instead of doing it in the driver's probe routine like many other drivers. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Link: https://lore.kernel.org/r/20210802172309.164365-4-sebastian.reichel@collabora.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-05misc: sram: Only map reserved areas in Tegra SYSRAMMikko Perttunen2-30/+82
On Tegra186 and later, a portion of the SYSRAM may be reserved for use by TZ. Non-TZ memory accesses to this portion, including speculative accesses, trigger SErrors that bring down the system. This does also happen in practice occasionally (due to speculative accesses). To fix the issue, add a flag to the SRAM driver to only map the device tree-specified reserved areas depending on a flag set based on the compatibility string. This would not affect non-Tegra systems that rely on the entire thing being memory mapped. If 64K pages are being used, we cannot exactly map the 4K regions that are placed in SYSRAM - ioremap code instead aligns to closest 64K pages. However, since in practice the non-accessible memory area is 64K aligned, these mappings do not overlap with the non-accessible memory area and things work out. Reviewed-by: Mian Yousaf Kaukab <ykaukab@suse.de> Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Link: https://lore.kernel.org/r/20210715103423.1811101-1-mperttunen@nvidia.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-03sgi-xpc: Replace deprecated CPU-hotplug functions.Sebastian Andrzej Siewior1-4/+4
The functions get_online_cpus() and put_online_cpus() have been deprecated during the CPU hotplug rework. They map directly to cpus_read_lock() and cpus_read_unlock(). Replace deprecated CPU-hotplug functions with the official version. The behavior remains unchanged. Cc: Robin Holt <robinmholt@gmail.com> Cc: Steve Wahl <steve.wahl@hpe.com> Cc: Mike Travis <mike.travis@hpe.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Link: https://lore.kernel.org/r/20210803141621.780504-17-bigeasy@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-29mei: constify passed buffers and structuresKrzysztof Kozlowski3-11/+11
Buffers and structures passed to MEI bus and client API can be made const for safer code and clear indication that it is not modified. Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210729102803.46289-1-krzysztof.kozlowski@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-27tty: drop put_tty_driverJiri Slaby1-4/+4
put_tty_driver() is an alias for tty_driver_kref_put(). There is no need for two exported identical functions, therefore switch all users of old put_tty_driver() to new tty_driver_kref_put() and remove the former for good. Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Cc: Jens Taprogge <jens.taprogge@taprogge.org> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: Scott Branden <scott.branden@broadcom.com> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: David Lin <dtwlin@gmail.com> Cc: Johan Hovold <johan@kernel.org> Cc: Alex Elder <elder@kernel.org> Cc: Jiri Slaby <jirislaby@kernel.org> Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: David Sterba <dsterba@suse.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Pengutronix Kernel Team <kernel@pengutronix.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> Cc: Oliver Neukum <oneukum@suse.com> Cc: Felipe Balbi <balbi@kernel.org> Cc: Mathias Nyman <mathias.nyman@intel.com> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com> Acked-by: Alex Elder <elder@linaro.org> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: David Sterba <dsterba@suse.com> Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20210723074317.32690-8-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-27Merge 5.14-rc3 into driver-core-nextGreg Kroah-Hartman1-10/+7
We need the driver-core fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-26Merge 5.14-rc3 into char-misc-nextGreg Kroah-Hartman1-10/+7
We need the char-misc fixes from 5.14-rc3 into here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21misc: pci_endpoint_test: Ensure relationship between miscdev and PCIRichard Weinberger1-0/+1
Set the parent pointer of the misc device to ensure a relationship between PCI and misc dev. That way it is possible to see in /sys/class/misc/ which pci_endpoint_test instance serves what PCI device. Signed-off-by: Richard Weinberger <richard@nod.at> Link: https://lore.kernel.org/r/20210706154310.26773-1-richard@nod.at Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21lkdtm: remove duplicated include of init.hWan Jiabing1-1/+0
Fix following checkincludes.pl warning: ./drivers/misc/lkdtm/core.c 26 #include <linux/init.h> 29 #include <linux/init.h> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Wan Jiabing <wanjiabing@vivo.com> Link: https://lore.kernel.org/r/20210628123512.38090-1-wanjiabing@vivo.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21misc/pvpanic-pci: Allow automatic loadingEric Auger1-0/+2
The virtual machine monitor (QEMU) exposes the pvpanic-pci device to the guest. On guest side the module exists but currently isn't loaded automatically. So the driver fails to be probed and does not its job of handling guest panic events. Instead of requiring manual modprobe, let's include a device database using the MODULE_DEVICE_TABLE macro and let the module auto-load when the guest gets exposed with such a pvpanic-pci device. Signed-off-by: Eric Auger <eric.auger@redhat.com> Link: https://lore.kernel.org/r/20210629072214.901004-1-eric.auger@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21misc: sgi-gru: Convert from atomic_t to refcount_t on ↵Xiyu Yang2-4/+5
gru_thread_state->ts_refcnt refcount_t type and corresponding API can protect refcounters from accidental underflow and overflow and further use-after-free situations. Acked-by: Dimitri Sivanich <sivanich@hpe.com> Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn> Signed-off-by: Xin Tan <tanxin.ctf@gmail.com> Link: https://lore.kernel.org/r/1626517043-42696-1-git-send-email-xiyuyang19@fudan.edu.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21bus: Make remove callback return voidUwe Kleine-König2-5/+2
The driver core ignores the return value of this callback because there is only little it can do when a device disappears. This is the final bit of a long lasting cleanup quest where several buses were converted to also return void from their remove callback. Additionally some resource leaks were fixed that were caused by drivers returning an error code in the expectation that the driver won't go away. With struct bus_type::remove returning void it's prevented that newly implemented buses return an ignored error code and so don't anticipate wrong expectations for driver authors. Reviewed-by: Tom Rix <trix@redhat.com> (For fpga) Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Cornelia Huck <cohuck@redhat.com> (For drivers/s390 and drivers/vfio) Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> (For ARM, Amba and related parts) Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Chen-Yu Tsai <wens@csie.org> (for sunxi-rsb) Acked-by: Pali Rohár <pali@kernel.org> Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org> (for media) Acked-by: Hans de Goede <hdegoede@redhat.com> (For drivers/platform) Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-By: Vinod Koul <vkoul@kernel.org> Acked-by: Juergen Gross <jgross@suse.com> (For xen) Acked-by: Lee Jones <lee.jones@linaro.org> (For mfd) Acked-by: Johannes Thumshirn <jth@kernel.org> (For mcb) Acked-by: Johan Hovold <johan@kernel.org> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> (For slimbus) Acked-by: Kirti Wankhede <kwankhede@nvidia.com> (For vfio) Acked-by: Maximilian Luz <luzmaximilian@gmail.com> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> (For ulpi and typec) Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com> (For ipack) Acked-by: Geoff Levand <geoff@infradead.org> (For ps3) Acked-by: Yehezkel Bernat <YehezkelShB@gmail.com> (For thunderbolt) Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> (For intel_th) Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> (For pcmcia) Acked-by: Rafael J. Wysocki <rafael@kernel.org> (For ACPI) Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> (rpmsg and apr) Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> (For intel-ish-hid) Acked-by: Dan Williams <dan.j.williams@intel.com> (For CXL, DAX, and NVDIMM) Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> (For isa) Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (For firewire) Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> (For hid) Acked-by: Thorsten Scherer <t.scherer@eckelmann.de> (For siox) Acked-by: Sven Van Asbroeck <TheSven73@gmail.com> (For anybuss) Acked-by: Ulf Hansson <ulf.hansson@linaro.org> (For MMC) Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C Acked-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Finn Thain <fthain@linux-m68k.org> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20210713193522.1770306-6-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21staging: hikey9xx: split hi6421v600 irq into a separate driverMauro Carvalho Chehab3-0/+318
Per MFD subsystem requirements, split the IRQ part of the driver into a separate one with just the IRQ handling code and the powerkey support. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/709e01c9ffafe6cd0ecb23336b44f9bcde2b5bc2.1626515862.git.mchehab+huawei@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-20Merge tag 'at24-fixes-for-v5.14' of ↵Wolfram Sang1-10/+7
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-current at24 fixes for v5.14 - fix a problem with repeating labels not getting a device id
2021-07-06Merge tag 'tty-5.14-rc1' of ↵Linus Torvalds2-18/+14
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty / serial updates from Greg KH: "Here is the big set of tty and serial driver patches for 5.14-rc1. A bit more than normal, but nothing major, lots of cleanups. Highlights are: - lots of tty api cleanups and mxser driver cleanups from Jiri - build warning fixes - various serial driver updates - coding style cleanups - various tty driver minor fixes and updates - removal of broken and disable r3964 line discipline (finally!) All of these have been in linux-next for a while with no reported issues" * tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (227 commits) serial: mvebu-uart: remove unused member nb from struct mvebu_uart arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART dt-bindings: mvebu-uart: fix documentation serial: mvebu-uart: correctly calculate minimal possible baudrate serial: mvebu-uart: do not allow changing baudrate when uartclk is not available serial: mvebu-uart: fix calculation of clock divisor tty: make linux/tty_flip.h self-contained serial: Prefer unsigned int to bare use of unsigned serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs serial: qcom_geni_serial: use DT aliases according to DT bindings Revert "tty: serial: Add UART driver for Cortina-Access platform" tty: serial: Add UART driver for Cortina-Access platform MAINTAINERS: add me back as mxser maintainer mxser: Documentation, fix typos mxser: Documentation, make the docs up-to-date mxser: Documentation, remove traces of callout device mxser: introduce mxser_16550A_or_MUST helper mxser: rename flags to old_speed in mxser_set_serial_info mxser: use port variable in mxser_set_serial_info mxser: access info->MCR under info->slock ...
2021-07-05Merge tag 'driver-core-5.14-rc1' of ↵Linus Torvalds2-3/+5
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core changes from Greg KH: "Here is the small set of driver core and debugfs updates for 5.14-rc1. Included in here are: - debugfs api cleanups (touched some drivers) - devres updates - tiny driver core updates and tweaks Nothing major in here at all, and all have been in linux-next for a while with no reported issues" * tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (27 commits) docs: ABI: testing: sysfs-firmware-memmap: add some memmap types. devres: Enable trace events devres: No need to call remove_nodes() when there none present devres: Use list_for_each_safe_from() in remove_nodes() devres: Make locking straight forward in release_nodes() kernfs: move revalidate to be near lookup drivers/base: Constify static attribute_group structs firmware_loader: remove unneeded 'comma' macro devcoredump: remove contact information driver core: Drop helper devm_platform_ioremap_resource_wc() component: Rename 'dev' to 'parent' component: Drop 'dev' argument to component_match_realloc() device property: Don't check for NULL twice in the loops driver core: auxiliary bus: Fix typo in the docs drivers/base/node.c: make CACHE_ATTR define static DEVICE_ATTR_RO debugfs: remove return value of debugfs_create_ulong() debugfs: remove return value of debugfs_create_bool() scsi: snic: debugfs: remove local storage of debugfs files b43: don't save dentries for debugfs b43legacy: don't save dentries for debugfs ...
2021-07-05Merge tag 'char-misc-5.14-rc1' of ↵Linus Torvalds65-1236/+3799
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc driver updates from Greg KH: "Here is the big set of char / misc and other driver subsystem updates for 5.14-rc1. Included in here are: - habanalabs driver updates - fsl-mc driver updates - comedi driver updates - fpga driver updates - extcon driver updates - interconnect driver updates - mei driver updates - nvmem driver updates - phy driver updates - pnp driver updates - soundwire driver updates - lots of other tiny driver updates for char and misc drivers This is looking more and more like the "various driver subsystems mushed together" tree... All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (292 commits) mcb: Use DEFINE_RES_MEM() helper macro and fix the end address PNP: moved EXPORT_SYMBOL so that it immediately followed its function/variable bus: mhi: pci-generic: Add missing 'pci_disable_pcie_error_reporting()' calls bus: mhi: Wait for M2 state during system resume bus: mhi: core: Fix power down latency intel_th: Wait until port is in reset before programming it intel_th: msu: Make contiguous buffers uncached intel_th: Remove an unused exit point from intel_th_remove() stm class: Spelling fix nitro_enclaves: Set Bus Master for the NE PCI device misc: ibmasm: Modify matricies to matrices misc: vmw_vmci: return the correct errno code siox: Simplify error handling via dev_err_probe() fpga: machxo2-spi: Address warning about unused variable lkdtm/heap: Add init_on_alloc tests selftests/lkdtm: Enable various testable CONFIGs lkdtm: Add CONFIG hints in errors where possible lkdtm: Enable DOUBLE_FAULT on all architectures lkdtm/heap: Add vmalloc linear overflow test lkdtm/bugs: XFAIL UNALIGNED_LOAD_STORE_WRITE ...
2021-07-03Merge tag 'trace-v5.14' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: - Added option for per CPU threads to the hwlat tracer - Have hwlat tracer handle hotplug CPUs - New tracer: osnoise, that detects latency caused by interrupts, softirqs and scheduling of other tasks. - Added timerlat tracer that creates a thread and measures in detail what sources of latency it has for wake ups. - Removed the "success" field of the sched_wakeup trace event. This has been hardcoded as "1" since 2015, no tooling should be looking at it now. If one exists, we can revert this commit, fix that tool and try to remove it again in the future. - tgid mapping fixed to handle more than PID_MAX_DEFAULT pids/tgids. - New boot command line option "tp_printk_stop", as tp_printk causes trace events to write to console. When user space starts, this can easily live lock the system. Having a boot option to stop just after boot up is useful to prevent that from happening. - Have ftrace_dump_on_oops boot command line option take numbers that match the numbers shown in /proc/sys/kernel/ftrace_dump_on_oops. - Bootconfig clean ups, fixes and enhancements. - New ktest script that tests bootconfig options. - Add tracepoint_probe_register_may_exist() to register a tracepoint without triggering a WARN*() if it already exists. BPF has a path from user space that can do this. All other paths are considered a bug. - Small clean ups and fixes * tag 'trace-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (49 commits) tracing: Resize tgid_map to pid_max, not PID_MAX_DEFAULT tracing: Simplify & fix saved_tgids logic treewide: Add missing semicolons to __assign_str uses tracing: Change variable type as bool for clean-up trace/timerlat: Fix indentation on timerlat_main() trace/osnoise: Make 'noise' variable s64 in run_osnoise() tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing tracing: Fix spelling in osnoise tracer "interferences" -> "interference" Documentation: Fix a typo on trace/osnoise-tracer trace/osnoise: Fix return value on osnoise_init_hotplug_support trace/osnoise: Make interval u64 on osnoise_main trace/osnoise: Fix 'no previous prototype' warnings tracing: Have osnoise_main() add a quiescent state for task rcu seq_buf: Make trace_seq_putmem_hex() support data longer than 8 seq_buf: Fix overflow in seq_buf_putmem_hex() trace/osnoise: Support hotplug operations trace/hwlat: Support hotplug operations trace/hwlat: Protect kdata->kthread with get/put_online_cpus trace: Add timerlat tracer trace: Add osnoise tracer ...
2021-07-02Merge branch 'akpm' (patches from Andrew)Linus Torvalds3-0/+3
Merge more updates from Andrew Morton: "190 patches. Subsystems affected by this patch series: mm (hugetlb, userfaultfd, vmscan, kconfig, proc, z3fold, zbud, ras, mempolicy, memblock, migration, thp, nommu, kconfig, madvise, memory-hotplug, zswap, zsmalloc, zram, cleanups, kfence, and hmm), procfs, sysctl, misc, core-kernel, lib, lz4, checkpatch, init, kprobes, nilfs2, hfs, signals, exec, kcov, selftests, compress/decompress, and ipc" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (190 commits) ipc/util.c: use binary search for max_idx ipc/sem.c: use READ_ONCE()/WRITE_ONCE() for use_global_lock ipc: use kmalloc for msg_queue and shmid_kernel ipc sem: use kvmalloc for sem_undo allocation lib/decompressors: remove set but not used variabled 'level' selftests/vm/pkeys: exercise x86 XSAVE init state selftests/vm/pkeys: refill shadow register after implicit kernel write selftests/vm/pkeys: handle negative sys_pkey_alloc() return code selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random kcov: add __no_sanitize_coverage to fix noinstr for all architectures exec: remove checks in __register_bimfmt() x86: signal: don't do sas_ss_reset() until we are certain that sigframe won't be abandoned hfsplus: report create_date to kstat.btime hfsplus: remove unnecessary oom message nilfs2: remove redundant continue statement in a while-loop kprobes: remove duplicated strong free_insn_page in x86 and s390 init: print out unknown kernel parameters checkpatch: do not complain about positive return values starting with EPOLL checkpatch: improve the indented label test checkpatch: scripts/spdxcheck.py now requires python3 ...
2021-07-01kernel.h: split out panic and oops helpersAndy Shevchenko3-0/+3
kernel.h is being used as a dump for all kinds of stuff for a long time. Here is the attempt to start cleaning it up by splitting out panic and oops helpers. There are several purposes of doing this: - dropping dependency in bug.h - dropping a loop by moving out panic_notifier.h - unload kernel.h from something which has its own domain At the same time convert users tree-wide to use new headers, although for the time being include new header back to kernel.h to avoid twisted indirected includes for existing users. [akpm@linux-foundation.org: thread_info.h needs limits.h] [andriy.shevchenko@linux.intel.com: ia64 fix] Link: https://lkml.kernel.org/r/20210520130557.55277-1-andriy.shevchenko@linux.intel.com Link: https://lkml.kernel.org/r/20210511074137.33666-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Co-developed-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Corey Minyard <cminyard@mvista.com> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Wei Liu <wei.liu@kernel.org> Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Sebastian Reichel <sre@kernel.org> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: Helge Deller <deller@gmx.de> # parisc Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>