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2022-12-08drm/tests: helpers: Rename the device init helperMaxime Ripard
The name doesn't really fit the conventions for the other helpers in DRM/KMS, so let's rename it to make it obvious that we allocate a new DRM device. Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-5-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/tests: helpers: Move the helper header to include/drmMaxime Ripard
We'll need to use those helpers from drivers too, so let's move it to a more visible location. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-1-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-07devlink: Expose port function commands to control migratableShay Drory
Expose port function commands to enable / disable migratable capability, this is used to set the port function as migratable. Live migration is the process of transferring a live virtual machine from one physical host to another without disrupting its normal operation. In order for a VM to be able to perform LM, all the VM components must be able to perform migration. e.g.: to be migratable. In order for VF to be migratable, VF must be bound to VFIO driver with migration support. When migratable capability is enabled for a function of the port, the device is making the necessary preparations for the function to be migratable, which might include disabling features which cannot be migrated. Example of LM with migratable function configuration: Set migratable of the VF's port function. $ devlink port show pci/0000:06:00.0/2 pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1 function: hw_addr 00:00:00:00:00:00 migratable disable $ devlink port function set pci/0000:06:00.0/2 migratable enable $ devlink port show pci/0000:06:00.0/2 pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1 function: hw_addr 00:00:00:00:00:00 migratable enable Bind VF to VFIO driver with migration support: $ echo <pci_id> > /sys/bus/pci/devices/0000:08:00.0/driver/unbind $ echo mlx5_vfio_pci > /sys/bus/pci/devices/0000:08:00.0/driver_override $ echo <pci_id> > /sys/bus/pci/devices/0000:08:00.0/driver/bind Attach VF to the VM. Start the VM. Perform LM. Signed-off-by: Shay Drory <shayd@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Acked-by: Shannon Nelson <shannon.nelson@amd.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-07net/mlx5: Add generic getters for other functions capsShay Drory
Downstream patch requires to get other function GENERAL2 caps while mlx5_vport_get_other_func_cap() gets only one type of caps (general). Rename it to represent this and introduce a generic implementation of mlx5_vport_get_other_func_cap(). Signed-off-by: Shay Drory <shayd@nvidia.com> Reviewed-by: Mark Bloch <mbloch@nvidia.com> Acked-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-07devlink: Expose port function commands to control RoCEShay Drory
Expose port function commands to enable / disable RoCE, this is used to control the port RoCE device capabilities. When RoCE is disabled for a function of the port, function cannot create any RoCE specific resources (e.g GID table). It also saves system memory utilization. For example disabling RoCE enable a VF/SF saves 1 Mbytes of system memory per function. Example of a PCI VF port which supports function configuration: Set RoCE of the VF's port function. $ devlink port show pci/0000:06:00.0/2 pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1 function: hw_addr 00:00:00:00:00:00 roce enable $ devlink port function set pci/0000:06:00.0/2 roce disable $ devlink port show pci/0000:06:00.0/2 pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1 function: hw_addr 00:00:00:00:00:00 roce disable Signed-off-by: Shay Drory <shayd@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-07net/mlx5: Introduce IFC bits for migratableYishai Hadas
Introduce IFC related capabilities to enable setting VF to be able to perform live migration. e.g.: to be migratable. Signed-off-by: Yishai Hadas <yishaih@nvidia.com> Reviewed-by: Mark Bloch <mbloch@nvidia.com> Acked-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-07Merge tag 'ieee802154-for-net-next-2022-12-05' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan-next Stefan Schmidt says: ==================== ieee802154-next 2022-12-05 Miquel continued his work towards full scanning support. For this, we now allow the creation of dedicated coordinator interfaces to allow a PAN coordinator to serve in the network and set the needed address filters with the hardware. On top of this we have the first part to allow scanning for available 15.4 networks. A new netlink scan group, within the existing nl802154 API, was added. In addition Miquel fixed two issues that have been introduced in the former patches to free an skb correctly and clarifying an expression in the stack. From David Girault we got tracing support when registering new PANs. * tag 'ieee802154-for-net-next-2022-12-05' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan-next: mac802154: Trace the registration of new PANs ieee802154: Advertize coordinators discovery mac802154: Allow the creation of coordinator interfaces mac802154: Clarify an expression mac802154: Move an skb free within the rx path ==================== Link: https://lore.kernel.org/r/20221205131909.1871790-1-stefan@datenfreihafen.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-07clk: Add trace events for rate requestsMaxime Ripard
It is currently fairly difficult to follow what clk_rate_request are issued, and how they have been modified once done. Indeed, there's multiple paths that can be taken, some functions are recursive and will just forward the request to its parent, etc. Adding a lot of debug prints is just not very convenient, so let's add trace events for the clock requests, one before they are submitted and one after they are returned. That way we can simply toggle the tracing on without modifying the kernel code and without affecting performances or the kernel logs too much. Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20221018-clk-rate-request-tracing-v2-2-5170b363c413@cerno.tech Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-12-07clk: Store clk_core for clk_rate_requestMaxime Ripard
The struct clk_rate_request is meant to store the context around a rate request such as the parent, boundaries, and so on. However, it doesn't store the clock the rate request is submitted to, which makes debugging difficult. Let's add a pointer to the relevant clk_core instance in order to improve the debugging of rate requests in a subsequent patch. Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20221018-clk-rate-request-tracing-v2-1-5170b363c413@cerno.tech Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-12-07Merge "do not rely on ALLOW_ERROR_INJECTION for fmod_ret" into bpf-nextAlexei Starovoitov
Merge commit 5b481acab4ce ("bpf: do not rely on ALLOW_ERROR_INJECTION for fmod_ret") from hid tree into bpf-next. Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-12-07Merge tag 'qcom-drivers-for-6.2-2' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/drivers More Qualcomm driver updates for 6.2 Socinfo is extended with knowledge about MSM8956, MSM8976, SM6115, SM4250, SM8150, SA8155 and SM8550. Support for RSC v3, as found in SM8550 is added to the RPMH RSC driver. Support for SM8550 and SM4250 ARC regulators are added to the RPM(h) power-domain drivers. SM8550 support is added to the LLCC driver. The AOSS QMP binding is declared compatible for SM8550. BWMON and LLCC now selects REGMAP_MMIO to ensure dependencies are built properly. * tag 'qcom-drivers-for-6.2-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: soc: qcom: socinfo: Add SM6115 / SM4250 SoC IDs to the soc_id table dt-bindings: arm: qcom,ids: Add SoC IDs for SM6115 / SM4250 and variants soc: qcom: socinfo: Add SM8150 and SA8155 SoC IDs to the soc_id table dt-bindings: arm: qcom,ids: Add SoC IDs for SM8150 and SA8155 dt-bindings: soc: qcom: apr: document generic qcom,apr compatible soc: qcom: Select REMAP_MMIO for ICC_BWMON driver soc: qcom: Select REMAP_MMIO for LLCC driver soc: qcom: rpmpd: Add SM4250 support dt-bindings: power: rpmpd: Add SM4250 support dt-bindings: soc: qcom: aoss: Add compatible for SM8550 soc: qcom: llcc: Add configuration data for SM8550 dt-bindings: arm: msm: Add LLCC compatible for SM8550 soc: qcom: llcc: Add v4.1 HW version support soc: qcom: socinfo: Add SM8550 ID soc: qcom: rpmh-rsc: Avoid unnecessary checks on irq-done response soc: qcom: rpmh-rsc: Add support for RSC v3 register offsets soc: qcom: rpmhpd: Add SM8550 power domains dt-bindings: power: rpmpd: Add SM8550 to rpmpd binding soc: qcom: socinfo: Add MSM8956/76 SoC IDs to the soc_id table dt-bindings: arm: qcom,ids: Add SoC IDs for MSM8956 and MSM8976 Link: https://lore.kernel.org/r/20221207154134.3233779-1-andersson@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-12-07fscache: Fix oops due to race with cookie_lru and use_cookieDave Wysochanski
If a cookie expires from the LRU and the LRU_DISCARD flag is set, but the state machine has not run yet, it's possible another thread can call fscache_use_cookie and begin to use it. When the cookie_worker finally runs, it will see the LRU_DISCARD flag set, transition the cookie->state to LRU_DISCARDING, which will then withdraw the cookie. Once the cookie is withdrawn the object is removed the below oops will occur because the object associated with the cookie is now NULL. Fix the oops by clearing the LRU_DISCARD bit if another thread uses the cookie before the cookie_worker runs. BUG: kernel NULL pointer dereference, address: 0000000000000008 ... CPU: 31 PID: 44773 Comm: kworker/u130:1 Tainted: G E 6.0.0-5.dneg.x86_64 #1 Hardware name: Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Workqueue: events_unbound netfs_rreq_write_to_cache_work [netfs] RIP: 0010:cachefiles_prepare_write+0x28/0x90 [cachefiles] ... Call Trace: netfs_rreq_write_to_cache_work+0x11c/0x320 [netfs] process_one_work+0x217/0x3e0 worker_thread+0x4a/0x3b0 kthread+0xd6/0x100 Fixes: 12bb21a29c19 ("fscache: Implement cookie user counting and resource pinning") Reported-by: Daire Byrne <daire.byrne@gmail.com> Signed-off-by: Dave Wysochanski <dwysocha@redhat.com> Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: Daire Byrne <daire@dneg.com> Link: https://lore.kernel.org/r/20221117115023.1350181-1-dwysocha@redhat.com/ # v1 Link: https://lore.kernel.org/r/20221117142915.1366990-1-dwysocha@redhat.com/ # v2 Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-12-07Merge tag 'v6.1-rc8' into efi/nextArd Biesheuvel
Linux 6.1-rc8
2022-12-07Merge tag 'br-v6.2i' of git://linuxtv.org/hverkuil/media_tree into media_stageMauro Carvalho Chehab
Tag branch Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> * tag 'br-v6.2i' of git://linuxtv.org/hverkuil/media_tree: (31 commits) media: s5c73m3: Switch to GPIO descriptors media: i2c: s5k5baf: switch to using gpiod API media: i2c: s5k6a3: switch to using gpiod API media: imx: remove code for non-existing config IMX_GPT_ICAP media: si470x: Fix use-after-free in si470x_int_in_callback() media: staging: stkwebcam: Restore MEDIA_{USB,CAMERA}_SUPPORT dependencies media: coda: Add check for kmalloc media: coda: Add check for dcoda_iram_alloc dt-bindings: media: s5c73m3: Fix reset-gpio descriptor media: dt-bindings: allwinner: h6-vpu-g2: Add IOMMU reference property media: s5k4ecgx: Delete driver media: s5k4ecgx: Switch to GPIO descriptors media: Switch to use dev_err_probe() helper headers: Remove some left-over license text in include/uapi/linux/v4l2-* headers: Remove some left-over license text in include/uapi/linux/dvb/ media: usb: pwc-uncompress: Use flex array destination for memcpy() media: s5p-mfc: Fix to handle reference queue during finishing media: s5p-mfc: Clear workbit to handle error condition media: s5p-mfc: Fix in register read and write for H264 media: imx: Use get_mbus_config instead of parsing upstream DT endpoints ...
2022-12-07media: s5c73m3: Switch to GPIO descriptorsLinus Walleij
The driver has an option to pass in GPIO numbers from platform data but this is not used in the kernel so delete this. Get GPIO descriptors using the standard API and simplify the code, gpiolib will handle any inversions. Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Andrzej Hajda <andrzej.hajda@intel.com> Cc: Alim Akhtar <alim.akhtar@samsung.com> Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2022-12-07media: s5k4ecgx: Switch to GPIO descriptorsLinus Walleij
The driver has an option to pass in GPIO numbers from platform data but this is not used in the kernel so delete this and the whole platform data mechanism. Get GPIO descriptors using the standard API and simplify the code, gpiolib will handle any inversions. Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Andrzej Hajda <andrzej.hajda@intel.com> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Alim Akhtar <alim.akhtar@samsung.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com> Reviewed-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2022-12-07headers: Remove some left-over license text in include/uapi/linux/v4l2-*Christophe JAILLET
Remove some left-over from commit e2be04c7f995 ("License cleanup: add SPDX license identifier to uapi header files with a license") When the SPDX-License-Identifier tag has been added, the corresponding license text has not been removed. Remove it now. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2022-12-07headers: Remove some left-over license text in include/uapi/linux/dvb/Christophe JAILLET
Remove some left-over from commit e2be04c7f995 ("License cleanup: add SPDX license identifier to uapi header files with a license") When the SPDX-License-Identifier tag has been added, the corresponding license text has not been removed. Remove it now. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2022-12-07media: ths7303: Fix the include guardChristophe JAILLET
Everything is about THS7303, so let the include guard reflect it as well to avoid potential future conflict. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2022-12-07media: v4l2-mediabus: add support for dual edge samplingMichael Riesch
Some devices support sampling of the parallel data at both edges of the interface pixel clock in order to reduce the pixel clock by two. Add a mediabus flag that represents this feature. Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2022-12-07block: remove bio_set_op_attrsChristoph Hellwig
This macro is obsolete, so replace the last few uses with open coded bi_opf assignments. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Coly Li <colyli@suse.de <mailto:colyli@suse.de>> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20221206144057.720846-1-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-12-07bpf: do not rely on ALLOW_ERROR_INJECTION for fmod_retBenjamin Tissoires
The current way of expressing that a non-bpf kernel component is willing to accept that bpf programs can be attached to it and that they can change the return value is to abuse ALLOW_ERROR_INJECTION. This is debated in the link below, and the result is that it is not a reasonable thing to do. Reuse the kfunc declaration structure to also tag the kernel functions we want to be fmodret. This way we can control from any subsystem which functions are being modified by bpf without touching the verifier. Link: https://lore.kernel.org/all/20221121104403.1545f9b5@gandalf.local.home/ Suggested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/r/20221206145936.922196-2-benjamin.tissoires@redhat.com
2022-12-07io_uring: use tw for putting rsrcPavel Begunkov
Use task_work for completing rsrc removals, it'll be needed later for spinlock optimisations. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/cbba5d53a11ee6fc2194dacea262c1d733c8b529.1670384893.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-12-07io_uring: complete all requests in task contextPavel Begunkov
This patch adds ctx->task_complete flag. If set, we'll complete all requests in the context of the original task. Note, this extends to completion CQE posting only but not io_kiocb cleanup / free, e.g. io-wq may free the requests in the free calllback. This flag will be used later for optimisations purposes. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/21ece72953f76bb2e77659a72a14326227ab6460.1670384893.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-12-07mfd: tps65219: Add driver for TI TPS65219 PMICJerome Neanne
The TPS65219 is a power management IC PMIC designed to supply a wide range of SoCs in both portable and stationary applications. Any SoC can control TPS65219 over a standard I2C interface. It contains the following components: - Regulators. - Over Temperature warning and Shut down. - GPIOs - Multi Function Pins (MFP) - power-button This patch adds support for tps65219 PMIC. At this time only the functionalities listed below are made available: - Regulators probe and functionalities - warm and cold reset support - SW shutdown support - Regulator warnings via IRQs - Power-button via IRQ Signed-off-by: Jerome Neanne <jneanne@baylibre.com> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221104152311.1098603-5-jneanne@baylibre.com
2022-12-07mfd: stmfx: Remove #ifdef guards for PM related functionsPaul Cercueil
Use the new DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() macros to handle the .suspend/.resume callbacks. These macros allow the suspend and resume functions to be automatically dropped by the compiler when CONFIG_SUSPEND is disabled, without having to use #ifdef guards. This has the advantage of always compiling these functions in, independently of any Kconfig option. Thanks to that, bugs and other regressions are subsequently easier to catch. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Lee Jones <lee@kernel.org>
2022-12-07mfd: pcf50633: Remove #ifdef guards for PM related functionsPaul Cercueil
Use the new EXPORT_GPL_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() macros to handle the .suspend/.resume callbacks. These macros allow the suspend and resume functions to be automatically dropped by the compiler when CONFIG_SUSPEND is disabled, without having to use #ifdef guards. This has the advantage of always compiling these functions in, independently of any Kconfig option. Thanks to that, bugs and other regressions are subsequently easier to catch. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Lee Jones <lee@kernel.org>
2022-12-07mfd: Remove htc-i2cpld driverArnd Bergmann
The HTC Herald machine was removed, so this driver is no longer used anywhere. Cc: Cory Maccarrone <darkstar6262@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221019150410.3851944-17-arnd@kernel.org
2022-12-07mfd: Remove dm355evm_msp driverArnd Bergmann
The DaVinci DM355EVM platform is gone after the removal of all unused board files, so the MTD device along with its sub-devices can be removed as well. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221019152947.3857217-7-arnd@kernel.org
2022-12-07mfd: twl6040: Drop twl6040_platform_data and associated definitionsDmitry Torokhov
As of df04b6242a58 ("mfd: twl6040: Remove support for legacy (pdata) mode") the driver no longer references the platform data, so we can drop its definition, as well as definitions of related structures. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20220926054421.1546436-5-dmitry.torokhov@gmail.com
2022-12-07mfd: twl6040: Switch to using gpiod APIDmitry Torokhov
This patch switches the dirver from legacy gpio API to a newer gpiod API so that we can eventually drop the former. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20220926054421.1546436-4-dmitry.torokhov@gmail.com
2022-12-07mfd: palmas: Stop including of_gpio.hDmitry Torokhov
It does not appear that any of palmas sub-drivers are using OF-based gpio APIs, so let's stop including this header. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20220926054421.1546436-3-dmitry.torokhov@gmail.com
2022-12-07iommu/tegra: Add tegra_dev_iommu_get_stream_id() helperThierry Reding
Access to the internals of struct iommu_fwspec by non-IOMMU drivers is discouraged. Many drivers for Tegra SoCs, however, need access to their IOMMU stream IDs so that they can be programmed into various hardware registers. Formalize this access into a common helper to make it easier to audit and maintain. Acked-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://lore.kernel.org/r/20221206165945.3551774-3-thierry.reding@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-12-07iommu: Add note about struct iommu_fwspec usageThierry Reding
This structure is to be considered private to the IOMMU API. Except for very few exceptions, IOMMU consumer drivers should treat this as opaque data. Acked-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://lore.kernel.org/r/20221206165945.3551774-2-thierry.reding@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-12-07mmc: tmio: remove 'alignment_shift' from platform dataWolfram Sang
There is only one alignment shift for one type of Renesas SDHI. Encode it directly in its DMA driver to reduce complexity and ease further simplifications. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20221102125430.28466-3-wsa+renesas@sang-engineering.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-12-06net: ethernet: mtk_wed: add reset to rx_ring_setup callbackLorenzo Bianconi
This patch adds reset parameter to mtk_wed_rx_ring_setup signature in order to align rx_ring_setup callback to tx_ring_setup one introduced in 'commit 23dca7a90017 ("net: ethernet: mtk_wed: add reset to tx_ring_setup callback")' Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Link: https://lore.kernel.org/r/29c6e7a5469e784406cf3e2920351d1207713d05.1670239984.git.lorenzo@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-06net: xsk: Don't include <linux/rculist.h>Christophe JAILLET
There is no need to include <linux/rculist.h> here. Prefer the less invasive <linux/types.h> which is needed for 'hlist_head'. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/r/88d6a1d88764cca328610854f890a9ca1f4b029e.1670086246.git.christophe.jaillet@wanadoo.fr Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-12-06bpf: decouple prune and jump pointsAndrii Nakryiko
BPF verifier marks some instructions as prune points. Currently these prune points serve two purposes. It's a point where verifier tries to find previously verified state and check current state's equivalence to short circuit verification for current code path. But also currently it's a point where jump history, used for precision backtracking, is updated. This is done so that non-linear flow of execution could be properly backtracked. Such coupling is coincidental and unnecessary. Some prune points are not part of some non-linear jump path, so don't need update of jump history. On the other hand, not all instructions which have to be recorded in jump history necessarily are good prune points. This patch splits prune and jump points into independent flags. Currently all prune points are marked as jump points to minimize amount of changes in this patch, but next patch will perform some optimization of prune vs jmp point placement. No functional changes are intended. Acked-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20221206233345.438540-2-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-12-07fscache,cachefiles: add prepare_ondemand_read() callbackJingbo Xu
Add prepare_ondemand_read() callback dedicated for the on-demand read scenario, so that callers from this scenario can be decoupled from netfs_io_subrequest. The original cachefiles_prepare_read() is now refactored to a generic routine accepting a parameter list instead of netfs_io_subrequest. There's no logic change, except that the debug id of subrequest and request is removed from trace_cachefiles_prep_read(). Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com> Acked-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/r/20221124034212.81892-2-jefflexu@linux.alibaba.com Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2022-12-06lsm: Add/fix return values in lsm_hooks.h and fix formattingRoberto Sassu
Ensure that for non-void LSM hooks there is a description of the return values. Also, replace spaces with tab for indentation, remove empty lines between the hook description and the list of parameters, adjust semicolons and add the period at the end of the parameter description. Finally, move the description of gfp parameter of the xfrm_policy_alloc_security hook together with the others. Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> [PM: /replaces./replaced./] Signed-off-by: Paul Moore <paul@paul-moore.com>
2022-12-06cxl/pci: Add some type-safety to the AER trace pointsDan Williams
The first argument to the CXL AER trace points is the source device. Pass a 'const struct device *' rather than a 'const char *' for more type precision / safety. Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Steven Rostedt <rostedt@goodmis.org> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Link: https://lore.kernel.org/r/167030091477.4045167.15174636482098463885.stgit@dwillia2-xfh.jf.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2022-12-06cxl/security: Drop security command ioctl uapiDan Williams
CXL PMEM security operations are routed through the NVDIMM sysfs interface. For this reason the corresponding commands are marked "exclusive" to preclude collisions between the ioctl ABI and the sysfs ABI. However, a better way to preclude that collision is to simply remove the ioctl ABI (command-id definitions) for those operations. Now that cxl_internal_send_cmd() (formerly cxl_mbox_send_cmd()) no longer needs to talk the cxl_mem_commands array, all of the uapi definitions for the security commands can be dropped. These never appeared in a released kernel, so no regression risk. Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Link: https://lore.kernel.org/r/167030056464.4044561.11486507095384253833.stgit@dwillia2-xfh.jf.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2022-12-06lsm: Clarify documentation of vm_enough_memory hookRoberto Sassu
include/linux/lsm_hooks.h reports the result of the LSM infrastructure to the callers, not what LSMs should return to the LSM infrastructure. Clarify that and add that if all LSMs return a positive value __vm_enough_memory() will be called with cap_sys_admin set. If at least one LSM returns 0 or negative, it will be called with cap_sys_admin cleared. Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> Signed-off-by: Paul Moore <paul@paul-moore.com>
2022-12-06vfio: Extend the device migration protocol with PRE_COPYJason Gunthorpe
The optional PRE_COPY states open the saving data transfer FD before reaching STOP_COPY and allows the device to dirty track internal state changes with the general idea to reduce the volume of data transferred in the STOP_COPY stage. While in PRE_COPY the device remains RUNNING, but the saving FD is open. Only if the device also supports RUNNING_P2P can it support PRE_COPY_P2P, which halts P2P transfers while continuing the saving FD. PRE_COPY, with P2P support, requires the driver to implement 7 new arcs and exists as an optional FSM branch between RUNNING and STOP_COPY: RUNNING -> PRE_COPY -> PRE_COPY_P2P -> STOP_COPY A new ioctl VFIO_MIG_GET_PRECOPY_INFO is provided to allow userspace to query the progress of the precopy operation in the driver with the idea it will judge to move to STOP_COPY at least once the initial data set is transferred, and possibly after the dirty size has shrunk appropriately. This ioctl is valid only in PRE_COPY states and kernel driver should return -EINVAL from any other migration state. Compared to the v1 clarification, STOP_COPY -> PRE_COPY is blocked and to be defined in future. We also split the pending_bytes report into the initial and sustaining values, e.g.: initial_bytes and dirty_bytes. initial_bytes: Amount of initial precopy data. dirty_bytes: Device state changes relative to data previously retrieved. These fields are not required to have any bearing to STOP_COPY phase. It is recommended to leave PRE_COPY for STOP_COPY only after the initial_bytes field reaches zero. Leaving PRE_COPY earlier might make things slower. Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Shay Drory <shayd@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> Signed-off-by: Yishai Hadas <yishaih@nvidia.com> Link: https://lore.kernel.org/r/20221206083438.37807-3-yishaih@nvidia.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2022-12-06net/mlx5: Introduce ifc bits for pre_copyShay Drory
Introduce ifc related stuff to enable PRE_COPY of VF during migration. Signed-off-by: Shay Drory <shayd@nvidia.com> Acked-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Yishai Hadas <yishaih@nvidia.com> Link: https://lore.kernel.org/r/20221206083438.37807-2-yishaih@nvidia.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2022-12-06block: bio_copy_data_iterChristoph Hellwig
With the pktcdvdv removal, bio_copy_data_iter is unused now. Fold the logic into bio_copy_data and remove the separate lower level function. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20221206144407.722049-1-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-12-06usb.h: take advantage of container_of_const()Greg Kroah-Hartman
Instead of rolling our own const-checking logic in to_usb_interface() and to_usb_device() use the newly added container_of_const() instead, making the logic much simpler overall. Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20221205121206.166576-3-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-12-06device.h: move kobj_to_dev() to use container_of_const()Greg Kroah-Hartman
Instead of rolling our own const-checking logic, use the newly introduced container_of_const() to handle it all for us automatically. Cc: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Acked-by: Rafael J. Wysocki <rafael@kernel.org> Link: https://lore.kernel.org/r/20221205121206.166576-2-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-12-06container_of: add container_of_const() that preserves const-ness of the pointerGreg Kroah-Hartman
container_of does not preserve the const-ness of a pointer that is passed into it, which can cause C code that passes in a const pointer to get a pointer back that is not const and then scribble all over the data in it. To prevent this, container_of_const() will preserve the const status of the pointer passed into it using the newly available _Generic() method. Suggested-by: Jason Gunthorpe <jgg@ziepe.ca> Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael@kernel.org> Link: https://lore.kernel.org/r/20221205121206.166576-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-12-06net/mlx5: Add HW definitions for IPsec packet offloadLeon Romanovsky
Add all needed bits to support IPsec packet offload mode. Reviewed-by: Raed Salem <raeds@nvidia.com> Reviewed-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
generated by cgit (git 2.34.1) at 2025-09-11 22:59:48 +0000