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1,426,898 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Wolfram Sang
|
3b661ca549 |
i3c: add missing include to internal header
LKP found a random config which failed to build because IO accessors were not defined: In file included from drivers/i3c/master.c:21: drivers/i3c/internals.h: In function 'i3c_writel_fifo': >> drivers/i3c/internals.h:35:9: error: implicit declaration of function 'writesl' [-Werror=implicit-function-declaration] Add the proper header to where the IO accessors are used. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202507150208.BZDzzJ5E-lkp@intel.com/ Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20250717120046.9022-2-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
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Linus Torvalds
|
63eb28bb14 |
ARM:
- Host driver for GICv5, the next generation interrupt controller for arm64, including support for interrupt routing, MSIs, interrupt translation and wired interrupts. - Use FEAT_GCIE_LEGACY on GICv5 systems to virtualize GICv3 VMs on GICv5 hardware, leveraging the legacy VGIC interface. - Userspace control of the 'nASSGIcap' GICv3 feature, allowing userspace to disable support for SGIs w/o an active state on hardware that previously advertised it unconditionally. - Map supporting endpoints with cacheable memory attributes on systems with FEAT_S2FWB and DIC where KVM no longer needs to perform cache maintenance on the address range. - Nested support for FEAT_RAS and FEAT_DoubleFault2, allowing the guest hypervisor to inject external aborts into an L2 VM and take traps of masked external aborts to the hypervisor. - Convert more system register sanitization to the config-driven implementation. - Fixes to the visibility of EL2 registers, namely making VGICv3 system registers accessible through the VGIC device instead of the ONE_REG vCPU ioctls. - Various cleanups and minor fixes. LoongArch: - Add stat information for in-kernel irqchip - Add tracepoints for CPUCFG and CSR emulation exits - Enhance in-kernel irqchip emulation - Various cleanups. RISC-V: - Enable ring-based dirty memory tracking - Improve perf kvm stat to report interrupt events - Delegate illegal instruction trap to VS-mode - MMU improvements related to upcoming nested virtualization s390x - Fixes x86: - Add CONFIG_KVM_IOAPIC for x86 to allow disabling support for I/O APIC, PIC, and PIT emulation at compile time. - Share device posted IRQ code between SVM and VMX and harden it against bugs and runtime errors. - Use vcpu_idx, not vcpu_id, for GA log tag/metadata, to make lookups O(1) instead of O(n). - For MMIO stale data mitigation, track whether or not a vCPU has access to (host) MMIO based on whether the page tables have MMIO pfns mapped; using VFIO is prone to false negatives - Rework the MSR interception code so that the SVM and VMX APIs are more or less identical. - Recalculate all MSR intercepts from scratch on MSR filter changes, instead of maintaining shadow bitmaps. - Advertise support for LKGS (Load Kernel GS base), a new instruction that's loosely related to FRED, but is supported and enumerated independently. - Fix a user-triggerable WARN that syzkaller found by setting the vCPU in INIT_RECEIVED state (aka wait-for-SIPI), and then putting the vCPU into VMX Root Mode (post-VMXON). Trying to detect every possible path leading to architecturally forbidden states is hard and even risks breaking userspace (if it goes from valid to valid state but passes through invalid states), so just wait until KVM_RUN to detect that the vCPU state isn't allowed. - Add KVM_X86_DISABLE_EXITS_APERFMPERF to allow disabling interception of APERF/MPERF reads, so that a "properly" configured VM can access APERF/MPERF. This has many caveats (APERF/MPERF cannot be zeroed on vCPU creation or saved/restored on suspend and resume, or preserved over thread migration let alone VM migration) but can be useful whenever you're interested in letting Linux guests see the effective physical CPU frequency in /proc/cpuinfo. - Reject KVM_SET_TSC_KHZ for vm file descriptors if vCPUs have been created, as there's no known use case for changing the default frequency for other VM types and it goes counter to the very reason why the ioctl was added to the vm file descriptor. And also, there would be no way to make it work for confidential VMs with a "secure" TSC, so kill two birds with one stone. - Dynamically allocation the shadow MMU's hashed page list, and defer allocating the hashed list until it's actually needed (the TDP MMU doesn't use the list). - Extract many of KVM's helpers for accessing architectural local APIC state to common x86 so that they can be shared by guest-side code for Secure AVIC. - Various cleanups and fixes. x86 (Intel): - Preserve the host's DEBUGCTL.FREEZE_IN_SMM when running the guest. Failure to honor FREEZE_IN_SMM can leak host state into guests. - Explicitly check vmcs12.GUEST_DEBUGCTL on nested VM-Enter to prevent L1 from running L2 with features that KVM doesn't support, e.g. BTF. x86 (AMD): - WARN and reject loading kvm-amd.ko instead of panicking the kernel if the nested SVM MSRPM offsets tracker can't handle an MSR (which is pretty much a static condition and therefore should never happen, but still). - Fix a variety of flaws and bugs in the AVIC device posted IRQ code. - Inhibit AVIC if a vCPU's ID is too big (relative to what hardware supports) instead of rejecting vCPU creation. - Extend enable_ipiv module param support to SVM, by simply leaving IsRunning clear in the vCPU's physical ID table entry. - Disable IPI virtualization, via enable_ipiv, if the CPU is affected by erratum #1235, to allow (safely) enabling AVIC on such CPUs. - Request GA Log interrupts if and only if the target vCPU is blocking, i.e. only if KVM needs a notification in order to wake the vCPU. - Intercept SPEC_CTRL on AMD if the MSR shouldn't exist according to the vCPU's CPUID model. - Accept any SNP policy that is accepted by the firmware with respect to SMT and single-socket restrictions. An incompatible policy doesn't put the kernel at risk in any way, so there's no reason for KVM to care. - Drop a superfluous WBINVD (on all CPUs!) when destroying a VM and use WBNOINVD instead of WBINVD when possible for SEV cache maintenance. - When reclaiming memory from an SEV guest, only do cache flushes on CPUs that have ever run a vCPU for the guest, i.e. don't flush the caches for CPUs that can't possibly have cache lines with dirty, encrypted data. Generic: - Rework irqbypass to track/match producers and consumers via an xarray instead of a linked list. Using a linked list leads to O(n^2) insertion times, which is hugely problematic for use cases that create large numbers of VMs. Such use cases typically don't actually use irqbypass, but eliminating the pointless registration is a future problem to solve as it likely requires new uAPI. - Track irqbypass's "token" as "struct eventfd_ctx *" instead of a "void *", to avoid making a simple concept unnecessarily difficult to understand. - Decouple device posted IRQs from VFIO device assignment, as binding a VM to a VFIO group is not a requirement for enabling device posted IRQs. - Clean up and document/comment the irqfd assignment code. - Disallow binding multiple irqfds to an eventfd with a priority waiter, i.e. ensure an eventfd is bound to at most one irqfd through the entire host, and add a selftest to verify eventfd:irqfd bindings are globally unique. - Add a tracepoint for KVM_SET_MEMORY_ATTRIBUTES to help debug issues related to private <=> shared memory conversions. - Drop guest_memfd's .getattr() implementation as the VFS layer will call generic_fillattr() if inode_operations.getattr is NULL. - Fix issues with dirty ring harvesting where KVM doesn't bound the processing of entries in any way, which allows userspace to keep KVM in a tight loop indefinitely. - Kill off kvm_arch_{start,end}_assignment() and x86's associated tracking, now that KVM no longer uses assigned_device_count as a heuristic for either irqbypass usage or MDS mitigation. Selftests: - Fix a comment typo. - Verify KVM is loaded when getting any KVM module param so that attempting to run a selftest without kvm.ko loaded results in a SKIP message about KVM not being loaded/enabled (versus some random parameter not existing). - Skip tests that hit EACCES when attempting to access a file, and rpint a "Root required?" help message. In most cases, the test just needs to be run with elevated permissions. -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmiKXMgUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroMhMQf/QDhC/CP1aGXph2whuyeD2NMqPKiU 9KdnDNST+ftPwjg9QxZ9mTaa8zeVz/wly6XlxD9OQHy+opM1wcys3k0GZAFFEEQm YrThgURdzEZ3nwJZgb+m0t4wjJQtpiFIBwAf7qq6z1VrqQBEmHXJ/8QxGuqO+BNC j5q/X+q6KZwehKI6lgFBrrOKWFaxqhnRAYfW6rGBxRXxzTJuna37fvDpodQnNceN zOiq+avfriUMArTXTqOteJNKU0229HjiPSnjILLnFQ+B3akBlwNG0jk7TMaAKR6q IZWG1EIS9q1BAkGXaw6DE1y6d/YwtXCR5qgAIkiGwaPt5yj9Oj6kRN2Ytw== =j2At -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull kvm updates from Paolo Bonzini: "ARM: - Host driver for GICv5, the next generation interrupt controller for arm64, including support for interrupt routing, MSIs, interrupt translation and wired interrupts - Use FEAT_GCIE_LEGACY on GICv5 systems to virtualize GICv3 VMs on GICv5 hardware, leveraging the legacy VGIC interface - Userspace control of the 'nASSGIcap' GICv3 feature, allowing userspace to disable support for SGIs w/o an active state on hardware that previously advertised it unconditionally - Map supporting endpoints with cacheable memory attributes on systems with FEAT_S2FWB and DIC where KVM no longer needs to perform cache maintenance on the address range - Nested support for FEAT_RAS and FEAT_DoubleFault2, allowing the guest hypervisor to inject external aborts into an L2 VM and take traps of masked external aborts to the hypervisor - Convert more system register sanitization to the config-driven implementation - Fixes to the visibility of EL2 registers, namely making VGICv3 system registers accessible through the VGIC device instead of the ONE_REG vCPU ioctls - Various cleanups and minor fixes LoongArch: - Add stat information for in-kernel irqchip - Add tracepoints for CPUCFG and CSR emulation exits - Enhance in-kernel irqchip emulation - Various cleanups RISC-V: - Enable ring-based dirty memory tracking - Improve perf kvm stat to report interrupt events - Delegate illegal instruction trap to VS-mode - MMU improvements related to upcoming nested virtualization s390x - Fixes x86: - Add CONFIG_KVM_IOAPIC for x86 to allow disabling support for I/O APIC, PIC, and PIT emulation at compile time - Share device posted IRQ code between SVM and VMX and harden it against bugs and runtime errors - Use vcpu_idx, not vcpu_id, for GA log tag/metadata, to make lookups O(1) instead of O(n) - For MMIO stale data mitigation, track whether or not a vCPU has access to (host) MMIO based on whether the page tables have MMIO pfns mapped; using VFIO is prone to false negatives - Rework the MSR interception code so that the SVM and VMX APIs are more or less identical - Recalculate all MSR intercepts from scratch on MSR filter changes, instead of maintaining shadow bitmaps - Advertise support for LKGS (Load Kernel GS base), a new instruction that's loosely related to FRED, but is supported and enumerated independently - Fix a user-triggerable WARN that syzkaller found by setting the vCPU in INIT_RECEIVED state (aka wait-for-SIPI), and then putting the vCPU into VMX Root Mode (post-VMXON). Trying to detect every possible path leading to architecturally forbidden states is hard and even risks breaking userspace (if it goes from valid to valid state but passes through invalid states), so just wait until KVM_RUN to detect that the vCPU state isn't allowed - Add KVM_X86_DISABLE_EXITS_APERFMPERF to allow disabling interception of APERF/MPERF reads, so that a "properly" configured VM can access APERF/MPERF. This has many caveats (APERF/MPERF cannot be zeroed on vCPU creation or saved/restored on suspend and resume, or preserved over thread migration let alone VM migration) but can be useful whenever you're interested in letting Linux guests see the effective physical CPU frequency in /proc/cpuinfo - Reject KVM_SET_TSC_KHZ for vm file descriptors if vCPUs have been created, as there's no known use case for changing the default frequency for other VM types and it goes counter to the very reason why the ioctl was added to the vm file descriptor. And also, there would be no way to make it work for confidential VMs with a "secure" TSC, so kill two birds with one stone - Dynamically allocation the shadow MMU's hashed page list, and defer allocating the hashed list until it's actually needed (the TDP MMU doesn't use the list) - Extract many of KVM's helpers for accessing architectural local APIC state to common x86 so that they can be shared by guest-side code for Secure AVIC - Various cleanups and fixes x86 (Intel): - Preserve the host's DEBUGCTL.FREEZE_IN_SMM when running the guest. Failure to honor FREEZE_IN_SMM can leak host state into guests - Explicitly check vmcs12.GUEST_DEBUGCTL on nested VM-Enter to prevent L1 from running L2 with features that KVM doesn't support, e.g. BTF x86 (AMD): - WARN and reject loading kvm-amd.ko instead of panicking the kernel if the nested SVM MSRPM offsets tracker can't handle an MSR (which is pretty much a static condition and therefore should never happen, but still) - Fix a variety of flaws and bugs in the AVIC device posted IRQ code - Inhibit AVIC if a vCPU's ID is too big (relative to what hardware supports) instead of rejecting vCPU creation - Extend enable_ipiv module param support to SVM, by simply leaving IsRunning clear in the vCPU's physical ID table entry - Disable IPI virtualization, via enable_ipiv, if the CPU is affected by erratum #1235, to allow (safely) enabling AVIC on such CPUs - Request GA Log interrupts if and only if the target vCPU is blocking, i.e. only if KVM needs a notification in order to wake the vCPU - Intercept SPEC_CTRL on AMD if the MSR shouldn't exist according to the vCPU's CPUID model - Accept any SNP policy that is accepted by the firmware with respect to SMT and single-socket restrictions. An incompatible policy doesn't put the kernel at risk in any way, so there's no reason for KVM to care - Drop a superfluous WBINVD (on all CPUs!) when destroying a VM and use WBNOINVD instead of WBINVD when possible for SEV cache maintenance - When reclaiming memory from an SEV guest, only do cache flushes on CPUs that have ever run a vCPU for the guest, i.e. don't flush the caches for CPUs that can't possibly have cache lines with dirty, encrypted data Generic: - Rework irqbypass to track/match producers and consumers via an xarray instead of a linked list. Using a linked list leads to O(n^2) insertion times, which is hugely problematic for use cases that create large numbers of VMs. Such use cases typically don't actually use irqbypass, but eliminating the pointless registration is a future problem to solve as it likely requires new uAPI - Track irqbypass's "token" as "struct eventfd_ctx *" instead of a "void *", to avoid making a simple concept unnecessarily difficult to understand - Decouple device posted IRQs from VFIO device assignment, as binding a VM to a VFIO group is not a requirement for enabling device posted IRQs - Clean up and document/comment the irqfd assignment code - Disallow binding multiple irqfds to an eventfd with a priority waiter, i.e. ensure an eventfd is bound to at most one irqfd through the entire host, and add a selftest to verify eventfd:irqfd bindings are globally unique - Add a tracepoint for KVM_SET_MEMORY_ATTRIBUTES to help debug issues related to private <=> shared memory conversions - Drop guest_memfd's .getattr() implementation as the VFS layer will call generic_fillattr() if inode_operations.getattr is NULL - Fix issues with dirty ring harvesting where KVM doesn't bound the processing of entries in any way, which allows userspace to keep KVM in a tight loop indefinitely - Kill off kvm_arch_{start,end}_assignment() and x86's associated tracking, now that KVM no longer uses assigned_device_count as a heuristic for either irqbypass usage or MDS mitigation Selftests: - Fix a comment typo - Verify KVM is loaded when getting any KVM module param so that attempting to run a selftest without kvm.ko loaded results in a SKIP message about KVM not being loaded/enabled (versus some random parameter not existing) - Skip tests that hit EACCES when attempting to access a file, and print a "Root required?" help message. In most cases, the test just needs to be run with elevated permissions" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (340 commits) Documentation: KVM: Use unordered list for pre-init VGIC registers RISC-V: KVM: Avoid re-acquiring memslot in kvm_riscv_gstage_map() RISC-V: KVM: Use find_vma_intersection() to search for intersecting VMAs RISC-V: perf/kvm: Add reporting of interrupt events RISC-V: KVM: Enable ring-based dirty memory tracking RISC-V: KVM: Fix inclusion of Smnpm in the guest ISA bitmap RISC-V: KVM: Delegate illegal instruction fault to VS mode RISC-V: KVM: Pass VMID as parameter to kvm_riscv_hfence_xyz() APIs RISC-V: KVM: Factor-out g-stage page table management RISC-V: KVM: Add vmid field to struct kvm_riscv_hfence RISC-V: KVM: Introduce struct kvm_gstage_mapping RISC-V: KVM: Factor-out MMU related declarations into separate headers RISC-V: KVM: Use ncsr_xyz() in kvm_riscv_vcpu_trap_redirect() RISC-V: KVM: Implement kvm_arch_flush_remote_tlbs_range() RISC-V: KVM: Don't flush TLB when PTE is unchanged RISC-V: KVM: Replace KVM_REQ_HFENCE_GVMA_VMID_ALL with KVM_REQ_TLB_FLUSH RISC-V: KVM: Rename and move kvm_riscv_local_tlb_sanitize() RISC-V: KVM: Drop the return value of kvm_riscv_vcpu_aia_init() RISC-V: KVM: Check kvm_riscv_vcpu_alloc_vector_context() return value KVM: arm64: selftests: Add FEAT_RAS EL2 registers to get-reg-list ... |
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Linus Torvalds
|
7d767a9528 |
xen: branch for v6.17-rc1
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCaIcSAAAKCRCAXGG7T9hj vkIzAP9Vj3dbVO/VPkI95youc1mDyHGDU0CqaATi53IBMsFCeAEA3Rrp4L685UOF kI/YesO/T5XhRGEEMkZi2nqyLFErNgY= =9zFJ -----END PGP SIGNATURE----- Merge tag 'for-linus-6.17-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from Juergen Gross: - fix for a UAF in the xen gntdev-dmabuf driver - fix in the xen netfront driver avoiding spurious interrupts - fix in the gntdev driver avoiding a large stack allocation - cleanup removing some dead code - build warning fix - cleanup of the sysfs code in the xen-pciback driver * tag 'for-linus-6.17-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/netfront: Fix TX response spurious interrupts xen/gntdev: remove struct gntdev_copy_batch from stack xen: fix UAF in dmabuf_exp_from_pages() xen: Remove some deadcode (x) xen-pciback: Replace scnprintf() with sysfs_emit_at() xen/xenbus: fix W=1 build warning in xenbus_va_dev_error function |
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Linus Torvalds
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2be6a7503d |
Remove or hide unused tracepoints
Tracepoints take up memory (around 5K per tracepoint) even when they are
unused. Changes are being made to detect when a tracepoint is defined but
unused and a warning is shown at build. But those changes are not yet
ready for inclusion.
- Fix some of the unused tracepoints that it detected
Some tracepoints were removed and others were hidden by config settings
to match the config settings of where they are instantiated. Some
tracepoints were moved into architecture specific code as only one
architecture used them.
- Call the ftrace_test_filter tracepoint in an unreachable if statement
The ftrace_test_filter tracepoint which is defined when ftrace selftests
are configured and is used to test the filter logic, but the tracepoint is
not actually called. It is put into an if statement to not have it get
compiled out, but also not warn for not being used.
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Merge tag 'trace-unused-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracepoint cleanup from Steven Rostedt:
"Remove or hide unused tracepoints
Tracepoints take up memory (around 5K per tracepoint) even when they
are unused. Changes are being made to detect when a tracepoint is
defined but unused and a warning is shown at build. But those changes
are not yet ready for inclusion.
- Fix some of the unused tracepoints that it detected
Some tracepoints were removed and others were hidden by config
settings to match the config settings of where they are
instantiated. Some tracepoints were moved into architecture
specific code as only one architecture used them.
- Call the ftrace_test_filter tracepoint in an unreachable if
statement
The ftrace_test_filter tracepoint which is defined when ftrace
selftests are configured and is used to test the filter logic, but
the tracepoint is not actually called. It is put into an if
statement to not have it get compiled out, but also not warn for
not being used"
* tag 'trace-unused-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: sched: Hide numa events under CONFIG_NUMA_BALANCING
powerpc/thp: tracing: Hide hugepage events under CONFIG_PPC_BOOK3S_64
tracing: Call trace_ftrace_test_filter() for the event
tracing: arm: arm64: Hide trace events ipi_raise, ipi_entry and ipi_exit
binder: Remove unused binder lock events
PM: tracing: Hide power_domain_target event under ARCH_OMAP2PLUS
PM: tracing: Hide device_pm_callback events under PM_SLEEP
PM: tracing: Hide psci_domain_idle events under ARM_PSCI_CPUIDLE
PM: cpufreq: powernv/tracing: Move powernv_throttle trace event
alarmtimer: Hide alarmtimer_suspend event when RTC_CLASS is not configured
tracing, AER: Hide PCIe AER event when PCIEAER is not configured
|
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Sakari Ailus
|
5fa62d4ec4 |
i3c: dw: Remove redundant pm_runtime_mark_last_busy() calls
pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(), pm_runtime_autosuspend() and pm_request_autosuspend() now include a call to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to pm_runtime_mark_last_busy(). Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Link: https://lore.kernel.org/r/20250704075417.3218742-1-sakari.ailus@linux.intel.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
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Sakari Ailus
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0c2ce4fba4 |
i3c: master: svc: Remove redundant pm_runtime_mark_last_busy() calls
pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(), pm_runtime_autosuspend() and pm_request_autosuspend() now include a call to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to pm_runtime_mark_last_busy(). Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20250704075416.3218647-1-sakari.ailus@linux.intel.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
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Stanley Chu
|
bc4a09d8e7 |
i3c: master: svc: Fix npcm845 FIFO_EMPTY quirk
In a private write transfer, the driver pre-fills the FIFO to work around
the FIFO_EMPTY quirk. However, if an IBIWON event occurs, the hardware
emits a NACK and the driver initiates a retry. During the retry, driver
attempts to pre-fill the FIFO again if there is remaining data, but since
the FIFO is already full, this leads to data loss.
Check available space in FIFO to prevent overflow.
Fixes:
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Wolfram Sang
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d028219a9f |
i3c: master: Add basic driver for the Renesas I3C controller
Add a basic driver for the I3C controller found in Renesas RZ/G3S and G3E SoCs. Support I3C pure busses (tested with two targets) and mixed busses (two I3C devices plus various I2C targets). DAA and communication with temperature sensors worked reliably at various speeds. Missing features such as IBI, HotJoin, and target mode will be added incrementally. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20250724094146.6443-5-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
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Tommaso Merciai
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94e611b5b9 |
dt-bindings: i3c: Add Renesas I3C controller
Add Renesas I3C controller which is available in R9A08G045 (RZ/G3S) and R9A09G047 (RZ/G3E) SoCs. Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20250724094146.6443-4-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
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Wolfram Sang
|
8acf1f3bae |
i3c: Add more parameters for controllers to the header
Add standard timing value definition from specification. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20250724094146.6443-3-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
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Wolfram Sang
|
9c0609d685 |
i3c: Standardize defines for specification parameters
Align existing defines to follow the consistent pattern: I3C_BUS_<PARAM>_<MAX|MIN|TYP>_<UNIT>. Prepare the codebase for adding new parameters and help avoid duplication. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20250724094146.6443-2-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
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Arnd Bergmann
|
5523a466e9 |
i3c: fix module_i3c_i2c_driver() with I3C=n
When CONFIG_I3C is disabled and the i3c_i2c_driver_register() happens to not be inlined, any driver calling it still references the i3c_driver instance, which then causes a link failure: x86_64-linux-ld: drivers/hwmon/lm75.o: in function `lm75_i3c_reg_read': lm75.c:(.text+0xc61): undefined reference to `i3cdev_to_dev' x86_64-linux-ld: lm75.c:(.text+0xd25): undefined reference to `i3c_device_do_priv_xfers' x86_64-linux-ld: lm75.c:(.text+0xdd8): undefined reference to `i3c_device_do_priv_xfers' This issue was part of the original i3c code, but only now caused problems when i3c support got added to lm75. Change the 'inline' annotations in the header to '__always_inline' to ensure that the dead-code-elimination pass in the compiler can optimize it out as intended. Fixes: |
||
Krzysztof Kozlowski
|
da9b54708d |
i3c: master: cdns: Simplify handling clocks in probe()
The two clocks, driver is getting, are not being disabled/re-enabled during runtime of the device. Eliminate one variable in state struct, all error paths and a lot of code from probe() and remove() by using devm_clk_get_enabled(). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20250713152411.74917-2-krzysztof.kozlowski@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
||
|
Linus Torvalds
|
4ff261e725 |
Runtime verification changes for 6.17
- Added Linear temporal logic monitors for RT application
Real-time applications may have design flaws causing them to have
unexpected latency. For example, the applications may raise page faults, or
may be blocked trying to take a mutex without priority inheritance.
However, while attempting to implement DA monitors for these real-time
rules, deterministic automaton is found to be inappropriate as the
specification language. The automaton is complicated, hard to understand,
and error-prone.
For these cases, linear temporal logic is found to be more suitable. The
LTL is more concise and intuitive.
- Make printk_deferred() public
The new monitors needed access to printk_deferred(). Make them visible for
the entire kernel.
- Add a vpanic() to allow for va_list to be passed to panic.
- Add rtapp container monitor.
A collection of monitors that check for common problems with real-time
applications that cause unexpected latency.
- Add page fault tracepoints to risc-v
These tracepoints are necessary to for the RV monitor to run on risc-v.
- Fix the behaviour of the rv tool with -s and idle tasks.
- Allow the rv tool to gracefully terminate with SIGTERM
- Adjusts dot2c not to create lines over 100 columns
- Properly order nested monitors in the RV Kconfig file
- Return the registration error in all DA monitor instead of 0
- Update and add new sched collection monitors
Replace tss and sncid monitors with more complete sts:
Not only prove that switches occur in scheduling context and scheduling
needs interrupt disabled but also that each call to the scheduler
disables interrupts to (optionally) switch.
New monitor: nrp
Preemption requires need resched which is cleared by any switch
(includes a non optimal workaround for /nested/ preemptions)
New monitor: sssw
suspension requires setting the task to sleepable and, after the
switch occurs, the task requires a wakeup to come back to runnable
New monitor: opid
waking and need-resched operations occur with interrupts and
preemption disabled or in IRQ without explicitly disabling preemption
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Merge tag 'trace-rv-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull runtime verification updates from Steven Rostedt:
- Added Linear temporal logic monitors for RT application
Real-time applications may have design flaws causing them to have
unexpected latency. For example, the applications may raise page
faults, or may be blocked trying to take a mutex without priority
inheritance.
However, while attempting to implement DA monitors for these
real-time rules, deterministic automaton is found to be inappropriate
as the specification language. The automaton is complicated, hard to
understand, and error-prone.
For these cases, linear temporal logic is found to be more suitable.
The LTL is more concise and intuitive.
- Make printk_deferred() public
The new monitors needed access to printk_deferred(). Make them
visible for the entire kernel.
- Add a vpanic() to allow for va_list to be passed to panic.
- Add rtapp container monitor.
A collection of monitors that check for common problems with
real-time applications that cause unexpected latency.
- Add page fault tracepoints to risc-v
These tracepoints are necessary to for the RV monitor to run on
risc-v.
- Fix the behaviour of the rv tool with -s and idle tasks.
- Allow the rv tool to gracefully terminate with SIGTERM
- Adjusts dot2c not to create lines over 100 columns
- Properly order nested monitors in the RV Kconfig file
- Return the registration error in all DA monitor instead of 0
- Update and add new sched collection monitors
Replace tss and sncid monitors with more complete sts:
Not only prove that switches occur in scheduling context and scheduling
needs interrupt disabled but also that each call to the scheduler
disables interrupts to (optionally) switch.
New monitor: nrp
Preemption requires need resched which is cleared by any switch
(includes a non optimal workaround for /nested/ preemptions)
New monitor: sssw
suspension requires setting the task to sleepable and, after the
switch occurs, the task requires a wakeup to come back to runnable
New monitor: opid
waking and need-resched operations occur with interrupts and
preemption disabled or in IRQ without explicitly disabling
preemption"
* tag 'trace-rv-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (48 commits)
rv: Add opid per-cpu monitor
rv: Add nrp and sssw per-task monitors
rv: Replace tss and sncid monitors with more complete sts
sched: Adapt sched tracepoints for RV task model
rv: Retry when da monitor detects race conditions
rv: Adjust monitor dependencies
rv: Use strings in da monitors tracepoints
rv: Remove trailing whitespace from tracepoint string
rv: Add da_handle_start_run_event_ to per-task monitors
rv: Fix wrong type cast in reactors_show() and monitor_reactor_show()
rv: Fix wrong type cast in monitors_show()
rv: Remove struct rv_monitor::reacting
rv: Remove rv_reactor's reference counter
rv: Merge struct rv_reactor_def into struct rv_reactor
rv: Merge struct rv_monitor_def into struct rv_monitor
rv: Remove unused field in struct rv_monitor_def
rv: Return init error when registering monitors
verification/rvgen: Organise Kconfig entries for nested monitors
tools/dot2c: Fix generated files going over 100 column limit
tools/rv: Stop gracefully also on SIGTERM
...
|
||
Bagas Sanjaya
|
ba12d5f11d |
i3c: Fix i3c_device_do_priv_xfers() kernel-doc indentation
Sphinx reports indentation warning on i3c_device_do_priv_xfers() return value list: Documentation/driver-api/i3c/device-driver-api:9: ./drivers/i3c/device.c:31: ERROR: Unexpected indentation. [docutils] Format the list as bullet list to fix the warning. Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20250702040424.18577-1-bagasdotme@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
||
Jorge Marques
|
6e055b1fb2 |
i3c: master: dw: Use i3c_writel_fifo() and i3c_readl_fifo()
Use common inline i3c_writel_fifo()/i3c_readl_fifo() methods to simplify code since the FIFO of controller is a 32bit width. Signed-off-by: Jorge Marques <jorge.marques@analog.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20250624-i3c-writesl-readsl-v3-3-63ccf0870f01@analog.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
||
|
Jorge Marques
|
c20d3fa704 |
i3c: master: cdns: Use i3c_writel_fifo() and i3c_readl_fifo()
Use common inline i3c_writel_fifo()/i3c_readl_fifo() methods to simplify code since the FIFO of controller is a 32bit width. Signed-off-by: Jorge Marques <jorge.marques@analog.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20250624-i3c-writesl-readsl-v3-2-63ccf0870f01@analog.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
||
|
Jorge Marques
|
733b439375 |
i3c: master: Add inline i3c_readl_fifo() and i3c_writel_fifo()
The I3C abstraction expects u8 buffers, but some controllers operate with a 32-bit bus width FIFO and cannot flag valid bytes individually. To avoid reading or writing outside the buffer bounds, use 32-bit accesses where possible and apply memcpy for any remaining bytes Signed-off-by: Jorge Marques <jorge.marques@analog.com> Suggested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20250624-i3c-writesl-readsl-v3-1-63ccf0870f01@analog.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
||
|
Linus Torvalds
|
d50b07d05c |
ring-buffer changes for v6.17:
- Rewind persistent ring buffer on boot When the persistent ring buffer is being used for live kernel tracing and the system crashes, the tool that is reading the trace may not have recorded the data when the system crashed. Although the persistent ring buffer still has that data, when reading it after a reboot, it will start where it left off. That is, what was read will not be accessible. Instead, on reboot, have the persistent ring buffer restart where the data starts and this will allow the tooling to recover what was lost when the crash occurred. - Remove the ring_buffer_read_prepare_sync() logic Reading the trace file required stopping writing to the ring buffer as the trace file is only an iterator and does not consume what it read. It was originally not safe to read the ring buffer in this mode and required disabling writing. The ring_buffer_read_prepare_sync() logic was used to stop each per_cpu ring buffer, call synchronize_rcu() and then start the iterator. This was used instead of calling synchronize_rcu() for each per_cpu buffer. Today, the iterator has been updated where it is safe to read the trace file while writing to the ring buffer is still occurring. There is no more need to do this synchronization and it is causing large delays on machines with many CPUs. Remove this unneeded synchronization. - Make static string array a constant in show_irq_str() Making the string array into a constant has shown to decrease code text/data size. -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCaIkfURQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qnx4AQCNXOuKYJXDvXrkwf449agwrn0lCVyI vV0L65nyIrakpAD8COV/lw8DhlCpb/Lijlzzo5L0n9QpEElNpq5uEntNwgE= =1YIy -----END PGP SIGNATURE----- Merge tag 'trace-ringbuffer-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull ring-buffer updates from Steven Rostedt: - Rewind persistent ring buffer on boot When the persistent ring buffer is being used for live kernel tracing and the system crashes, the tool that is reading the trace may not have recorded the data when the system crashed. Although the persistent ring buffer still has that data, when reading it after a reboot, it will start where it left off. That is, what was read will not be accessible. Instead, on reboot, have the persistent ring buffer restart where the data starts and this will allow the tooling to recover what was lost when the crash occurred. - Remove the ring_buffer_read_prepare_sync() logic Reading the trace file required stopping writing to the ring buffer as the trace file is only an iterator and does not consume what it read. It was originally not safe to read the ring buffer in this mode and required disabling writing. The ring_buffer_read_prepare_sync() logic was used to stop each per_cpu ring buffer, call synchronize_rcu() and then start the iterator. This was used instead of calling synchronize_rcu() for each per_cpu buffer. Today, the iterator has been updated where it is safe to read the trace file while writing to the ring buffer is still occurring. There is no more need to do this synchronization and it is causing large delays on machines with many CPUs. Remove this unneeded synchronization. - Make static string array a constant in show_irq_str() Making the string array into a constant has shown to decrease code text/data size. * tag 'trace-ringbuffer-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: ring-buffer: Make the const read-only 'type' static ring-buffer: Remove ring_buffer_read_prepare_sync() tracing: ring_buffer: Rewind persistent ring buffer on reboot |
||
|
Linus Torvalds
|
90a871f74b |
ftrace changes for v6.17:
- Keep track of when fgraph_ops are registered or not Keep accounting of when fgraph_ops are registered as if a fgraph_ops is registered twice it can mess up the accounting and it will not work as expected later. Trigger a warning if something registers it twice as to catch bugs before they are found by things just not working as expected. - Make DYNAMIC_FTRACE always enabled for architectures that support it As static ftrace (where all functions are always traced) is very expensive and only exists to help architectures support ftrace, do not make it an option. As soon as an architecture supports DYNAMIC_FTRACE make it use it. This simplifies the code. - Remove redundant config HAVE_FTRACE_MCOUNT_RECORD The CONFIG_HAVE_FTRACE_MCOUNT was added to help simplify the DYNAMIC_FTRACE work, but now every architecture that implements DYNAMIC_FTRACE also has HAVE_FTRACE_MCOUNT set too, making it redundant with the HAVE_DYNAMIC_FTRACE. - Make pid_ptr string size match the comment In print_graph_proc() the pid_ptr string is of size 11, but the comment says /* sign + log10(MAX_INT) + '\0' */ which is actually 12. -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCaIkVkRQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qmdxAPsGcyT/gnyX/wf70cI63QoODrlRAd7M tg3R0J0H41U05QD/apttbA9GSdZ8bDLLSFAXTJgr8f4GvYvbUsmu2sMBBA8= =gd9V -----END PGP SIGNATURE----- Merge tag 'ftrace-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull ftrace updates from Steven Rostedt: - Keep track of when fgraph_ops are registered or not Keep accounting of when fgraph_ops are registered as if a fgraph_ops is registered twice it can mess up the accounting and it will not work as expected later. Trigger a warning if something registers it twice as to catch bugs before they are found by things just not working as expected. - Make DYNAMIC_FTRACE always enabled for architectures that support it As static ftrace (where all functions are always traced) is very expensive and only exists to help architectures support ftrace, do not make it an option. As soon as an architecture supports DYNAMIC_FTRACE make it use it. This simplifies the code. - Remove redundant config HAVE_FTRACE_MCOUNT_RECORD The CONFIG_HAVE_FTRACE_MCOUNT was added to help simplify the DYNAMIC_FTRACE work, but now every architecture that implements DYNAMIC_FTRACE also has HAVE_FTRACE_MCOUNT set too, making it redundant with the HAVE_DYNAMIC_FTRACE. - Make pid_ptr string size match the comment In print_graph_proc() the pid_ptr string is of size 11, but the comment says /* sign + log10(MAX_INT) + '\0' */ which is actually 12. * tag 'ftrace-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing: Remove redundant config HAVE_FTRACE_MCOUNT_RECORD ftrace: Make DYNAMIC_FTRACE always enabled for architectures that support it fgraph: Keep track of when fgraph_ops are registered or not fgraph: Make pid_str size match the comment |
||
|
Linus Torvalds
|
2223228bb1 |
ktest updates for v6.17
- Add new -D option that allows to override variables and options
For example:
./ktest.pl -DPATCH_START:=HEAD~1 -DOUTPUT_DIR=/work/build/urgent config
The above sets the variable "PATCH_START" to HEAD~1 and the OUTPUT_DIR
option to "/work/build/urgent".
This is useful because currently the only way to make a slight change to a
config file is by modifying that config file. For one time changes, this
can be annoying. Having a way to do a one time override from the command
line simplifies the workflow.
Temp variables (PATCH_START) will override every temp variable in the
config file, whereas options will act like a normal OVERRIDE option and
will only affect the session they define.
-DBUILD_OUTPUT=/work/git/linux.git
Replaces the default BUILD_OUTPUT option.
'-DBUILD_OUTPUT[2]=/work/git/linux.git'
Only replaces the BUILD_OUTPUT variable for test #2.
- If an option contains itself, just drop it instead of going into an
infinite loop and failing to parse (it doesn't crash, it detects the
recursion after 100 iterations anyway).
Some configs may define a variable with the same name as the option:
ADD_CONFIG := $(ADD_CONFIG)
But if the option doesn't exist, it the above will fail to parse. In these
cases, just ignore evaluating the option inside the definition of another
option if it has the same name.
- Display the BUILD_DIR and OUTPUT_DIR options at the start of every test
It is useful to know which kernel source and what destination a test is
using when it starts, in case a mistake is made. This makes it easier to
abort the test if the wrong source or destination is being used instead of
waiting until the test completes.
- Add new PATCHCHECK_SKIP option
When testing a series of commits that also includes changes to the Linux
tools directory, it is useless to test the changes in tools as they may
not affect the kernel itself. Doing tests on the kernel for changes that
do not affect the kernel is a waste of time.
Add a PATCHCHECK_SKIP that takes a series of shas that will be skipped
while doing the individual commit tests.
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Merge tag 'ktest-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest updates from Steven Rostedt:
- Add new -D option that allows to override variables and options
For example:
./ktest.pl -DPATCH_START:=HEAD~1 -DOUTPUT_DIR=/work/build/urgent config
The above sets the variable "PATCH_START" to HEAD~1 and the
OUTPUT_DIR option to "/work/build/urgent".
This is useful because currently the only way to make a slight change
to a config file is by modifying that config file. For one time
changes, this can be annoying. Having a way to do a one time override
from the command line simplifies the workflow.
Temp variables (PATCH_START) will override every temp variable in the
config file, whereas options will act like a normal OVERRIDE option
and will only affect the session they define.
-DBUILD_OUTPUT=/work/git/linux.git
Replaces the default BUILD_OUTPUT option.
'-DBUILD_OUTPUT[2]=/work/git/linux.git'
Only replaces the BUILD_OUTPUT variable for test #2.
- If an option contains itself, just drop it instead of going into an
infinite loop and failing to parse (it doesn't crash, it detects the
recursion after 100 iterations anyway).
Some configs may define a variable with the same name as the option:
ADD_CONFIG := $(ADD_CONFIG)
But if the option doesn't exist, it the above will fail to parse. In
these cases, just ignore evaluating the option inside the definition
of another option if it has the same name.
- Display the BUILD_DIR and OUTPUT_DIR options at the start of every
test
It is useful to know which kernel source and what destination a test
is using when it starts, in case a mistake is made. This makes it
easier to abort the test if the wrong source or destination is being
used instead of waiting until the test completes.
- Add new PATCHCHECK_SKIP option
When testing a series of commits that also includes changes to the
Linux tools directory, it is useless to test the changes in tools as
they may not affect the kernel itself. Doing tests on the kernel for
changes that do not affect the kernel is a waste of time.
Add a PATCHCHECK_SKIP that takes a series of shas that will be
skipped while doing the individual commit tests.
* tag 'ktest-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest.pl: Add new PATCHCHECK_SKIP option to skip testing individual commits
ktest.pl: Always display BUILD_DIR and OUTPUT_DIR at the start of tests
ktest.pl: Prevent recursion of default variable options
ktest.pl: Have -D option work without a space
ktest.pl: Allow command option -D to override temp variables
ktest.pl: Add -D option to override options
|
||
|
Bagas Sanjaya
|
79aef1a370 |
of: Clarify OF device context in of_match_device() comment
Open Firmware abbreviation (OF) in of_match_device() comment is written in lowercase instead, which is mistaken for prepositional word "of" ([1], [2], [3], [4]) duplicate. Clarify the context. Link: https://lore.kernel.org/all/CAL_JsqLypcBCOVZ8yYWK0J_xc2Vcr+ANrX_3v4vN55Srp4RknQ@mail.gmail.com/ [1] Link: https://lore.kernel.org/all/20220926185852.GA2581083-robh@kernel.org/ [2] Link: https://lore.kernel.org/all/CAL_JsqL4GvgFYzGUfhW5pvm4wYGrFaj6gHOYZjnOMuk2zCz67w@mail.gmail.com/ [3] Link: https://lore.kernel.org/all/20220627173825.GA2637590-robh@kernel.org/ [4] Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20250730013113.11264-1-bagasdotme@gmail.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org> |
||
|
Linus Torvalds
|
b7dbc2e813 |
Probes updates for v6.17:
- Stack usage reduction for probe events:
- Allocate string buffers from the heap for uprobe, eprobe, kprobe,
and fprobe events to avoid stack overflow.
- Allocate traceprobe_parse_context from the heap to prevent
potential stack overflow.
- Fix a typo in the above commit.
- New features for eprobe and tprobe events:
- Add support for arrays in eprobes.
- Support multiple tprobes on the same tracepoint.
- Improve efficiency:
- Register fprobe-events only when it is enabled to reduce overhead.
- Register tracepoints for tprobe events only when enabled to
resolve a lock dependency.
- Code Cleanup:
- Add kerneldoc for traceprobe_parse_event_name() and __get_insn_slot().
- Sort #include alphabetically in the probes code.
- Remove the unused 'mod' field from the tprobe-event.
- Clean up the entry-arg storing code in probe-events.
- Selftest update
- Enable fprobe events before checking enable_functions in selftests.
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Merge tag 'probes-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes updates from Masami Hiramatsu:
"Stack usage reduction for probe events:
- Allocate string buffers from the heap for uprobe, eprobe, kprobe,
and fprobe events to avoid stack overflow
- Allocate traceprobe_parse_context from the heap to prevent
potential stack overflow
- Fix a typo in the above commit
New features for eprobe and tprobe events:
- Add support for arrays in eprobes
- Support multiple tprobes on the same tracepoint
Improve efficiency:
- Register fprobe-events only when it is enabled to reduce overhead
- Register tracepoints for tprobe events only when enabled to resolve
a lock dependency
Code Cleanup:
- Add kerneldoc for traceprobe_parse_event_name() and
__get_insn_slot()
- Sort #include alphabetically in the probes code
- Remove the unused 'mod' field from the tprobe-event
- Clean up the entry-arg storing code in probe-events
Selftest update
- Enable fprobe events before checking enable_functions in selftests"
* tag 'probes-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: trace_fprobe: Fix typo of the semicolon
tracing: Have eprobes handle arrays
tracing: probes: Add a kerneldoc for traceprobe_parse_event_name()
tracing: uprobe-event: Allocate string buffers from heap
tracing: eprobe-event: Allocate string buffers from heap
tracing: kprobe-event: Allocate string buffers from heap
tracing: fprobe-event: Allocate string buffers from heap
tracing: probe: Allocate traceprobe_parse_context from heap
tracing: probes: Sort #include alphabetically
kprobes: Add missing kerneldoc for __get_insn_slot
tracing: tprobe-events: Register tracepoint when enable tprobe event
selftests: tracing: Enable fprobe events before checking enable_functions
tracing: fprobe-events: Register fprobe-events only when it is enabled
tracing: tprobe-events: Support multiple tprobes on the same tracepoint
tracing: tprobe-events: Remove mod field from tprobe-event
tracing: probe-events: Cleanup entry-arg storing code
|
||
|
Linus Torvalds
|
a03eec7420 |
Probes fixes for v6.16:
- Fix a potential infinite recursion in fprobe by using preempt_*_notrace(). -----BEGIN PGP SIGNATURE----- iQFPBAABCgA5FiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmiIdp4bHG1hc2FtaS5o aXJhbWF0c3VAZ21haWwuY29tAAoJENv7B78FKz8boY8IAMQGLspd1mATbCfnrQKY 2X86OVygOJx7Iq1RCmOV6fhroe5EoNVR/b1RXmZJf2gIoN176zdBdYrBIFC97lYO J1XaU/Ns1McBuKrOjc3TSYYioVPHJrKLiZ1vAoCicTkUsS34MQJXbbAlfdn424pb J1wUeIDJF0WrFH9yVJ4mEs1dH81oCQ3iSG0CYx5/qLggcoubUFrVl4QessJwAuI6 VM+cKDsqMCltBovXFw/fAgWfiQp79z/uq9umOFLdZGsesqutMYTMgJXBS6slKl3a qE2EQ57Op39A2zpk2hUoVoyv5Ey/XkfEjLU7WIMfqjLOL201IGQEKuyvR/mS54Kc HDw= =EeVm -----END PGP SIGNATURE----- Merge tag 'probes-fixes-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull probes fix from Masami Hiramatsu: - Fix a potential infinite recursion in fprobe by using preempt_*_notrace() * tag 'probes-fixes-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing: fprobe: Fix infinite recursion using preempt_*_notrace() |
||
|
Linus Torvalds
|
9bfdba946f |
Bootconfig updates for v6.17:
- tools/bootconfig:
- Fix unaligned access when building footer to avoid SIGBUS
- Cleanup bootconfig footer size calculations
- test scripts:
- Fix to add shebang for a test script
- Improve script portability using portable commands
- Improve script portability using printf instead of echo
- Enclose regex with quotes for syntax highlighter
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Merge tag 'bootconfig-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull bootconfig updates from Masami Hiramatsu:
- tools/bootconfig:
- Fix unaligned access when building footer to avoid SIGBUS
- Cleanup bootconfig footer size calculations
- test scripts:
- Fix to add shebang for a test script
- Improve script portability using portable commands
- Improve script portability using printf instead of echo
- Enclose regex with quotes for syntax highlighter
* tag 'bootconfig-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
bootconfig: Fix unaligned access when building footer
tools/bootconfig: scripts/ftrace.sh was missing the shebang line, so added it
tools/bootconfig: Cleanup bootconfig footer size calculations
tools/bootconfig: Replace some echo with printf for more portability
tools/bootconfig: Improve portability
tools: bootconfig: Regex enclosed with quotes to make syntax highlight proper
|
||
Svyatoslav Ryhel
|
55023abe6a |
drm: bridge: Add support for Solomon SSD2825 RGB/DSI bridge
SSD2825 is a cost-effective MIPI Bridge Chip solution targeting mainly smartphones. It can convert 24bit RGB interface into 4-lane MIPI-DSI interface to drive display modules of up to 800 x 1366, while supporting AMOLED, a-si LCD or LTPS panel technologies for smartphone applications. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250730055424.6718-3-clamor95@gmail.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> |
||
|
Svyatoslav Ryhel
|
784c99331c |
dt-bindings: display: bridge: Document Solomon SSD2825
Add bindings for Solomon SSD2825 MIPI master bridge chip that connects an application processor with traditional parallel LCD interface and an LCD driver with MIPI slave interface. The SSD2825 supports both parallel RGB interface and serial SPI interface. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250730055424.6718-2-clamor95@gmail.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> |
||
Jan Polensky
|
022245067f |
perf test: Ensure lock contention using pipe mode
The 'kernel lock contention analysis test' requires reliable triggering of lock contention. On some systems, previous benchmark calls failed to generate sufficient contention due to low system activity or resource limits. This patch adds the -p (pipe) option to all calls of perf bench sched messaging, ensuring consistent lock contention without relying on socket-based communication. Suggested-by: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Jan Polensky <japo@linux.ibm.com> Link: https://lore.kernel.org/r/20250725170801.3176678-1-japo@linux.ibm.com Signed-off-by: Namhyung Kim <namhyung@kernel.org> |
||
Lukasz Laguna
|
f62408efc8 |
drm/xe/vf: Disable CSC support on VF
CSC is not accessible by VF drivers, so disable its support flag on VF to prevent further initialization attempts. Fixes: |
||
|
Linus Torvalds
|
e8d780dcd9 |
slab updates for 6.17
-----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEe7vIQRWZI0iWSE3xu+CwddJFiJoFAmiHj+8ACgkQu+CwddJF iJrnOggAjBwzwvJsUWB3YBaF0wyLipLcdNsbbDOqvLYShQifaEuwN/i8FYO+D7a3 DyBR3NK4pWcZtxrSJVHcAuy06yQq5sqeU9Dc5iJ+ADCXnqYshUFp5ARtNVaputGy b4990JMIG0YxEBD3Gx01kicCdae9JkU5FGZKFk65oHalaGQk7GtMfG+e/obh4z9D e9R5Ub+9zM9Efwl/DD7qkETWKAq0gBjvbj0dYO0E7ctO/WNr93Z1FsnbxiUcPiG3 ED1LwTuNYYccBf/8iPGy/cp0WcWTwGtjbPEUk3lyY0KcrpgGT+cyvJj8G0GfnvV4 V/OLZrzwVZw2k3MopbFl/RdgWGf0bA== =gZB5 -----END PGP SIGNATURE----- Merge tag 'slab-for-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab Pull slab updates from Vlastimil Babka: - Convert struct slab to its own flags instead of referencing page flags, which is another preparation step before separating it from struct page completely. Along with that, a bunch of documentation fixes and cleanups (Matthew Wilcox) - Convert large kmalloc to use frozen pages in order to be consistent with non-large kmalloc slabs (Vlastimil Babka) - MAINTAINERS updates (Matthew Wilcox, Lorenzo Stoakes) - Restore NUMA policy support for large kmalloc, broken by mistake in v6.1 (Vlastimil Babka) * tag 'slab-for-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: MAINTAINERS: add missing files to slab section slab: Update MAINTAINERS entry memcg_slabinfo: Fix use of PG_slab kfence: Remove mention of PG_slab vmcoreinfo: Remove documentation of PG_slab and PG_hugetlb doc: Add slab internal kernel-doc slub: Fix a documentation build error for krealloc() slab: Add SL_pfmemalloc flag slab: Add SL_partial flag slab: Rename slab->__page_flags to slab->flags doc: Move SLUB documentation to the admin guide mm, slab: use frozen pages for large kmalloc mm, slab: restore NUMA policy support for large kmalloc |
||
|
Linus Torvalds
|
2db4df0c09 |
RCU pull request for v6.17
This pull request contains the following branches:
rcu-exp.23.07.2025
- Protect against early RCU exp quiescent state reporting during exp
grace period initialization.
- Remove superfluous barrier in task unblock path.
- Remove the CPU online quiescent state report optimization, which is
error prone for certain scenarios.
- Add warning for unexpected pending requested expedited quiescent
state on dying CPU.
rcu.22.07.2025
- Robustify rcu_is_cpu_rrupt_from_idle() by using more accurate
indicators of the actual context tracking state of a CPU.
- Handle ->defer_qs_iw_pending field data race.
- Enable rcu_normal_wake_from_gp by default on systems with <= 16 CPUs.
- Fix lockup in rcu_read_unlock() due to recursive irq_exit() calls.
- Refactor expedited handling condition in rcu_read_unlock_special().
- Documentation updates for hotplug and GP init scan ordering,
separation of rcu_state and rnp's gp_seq states, quiescent state
reporting for offline CPUs.
torture-scripts.16.07.2025
- Cleanup and improve scripts : remove superfluous warnings for disabled
tests; better handling of kvm.sh --kconfig arg; suppress some confusing
diagnostics; tolerate bad kvm.sh args; add new diagnostic for build
output; fail allmodconfig testing on warnings.
- Include RCU_TORTURE_TEST_CHK_RDR_STATE config for KCSAN kernels.
- Disable default RCU-tasks and clocksource-wdog testing on arm64.
- Add EXPERT Kconfig option for arm64 KCSAN runs.
- Remove SRCU-lite testing.
rcutorture.16.07.2025
- Start torture writer threads creation after reader threads to handle
race in SRCU-P scenario.
- Add SRCU down_read()/up_read() test.
- Add diagnostics for delayed SRCU up_read(), unmatched up_read(), print
number of up/down readers and the number of such readers which
migrated to other CPU.
- Ignore certain unsupported configurations for trivial RCU test.
- Fix splats in RT kernels due to inaccurate checks for BH-disabled
context.
- Enable checks and logs to capture intentionally exercised unexpected
scenarios (too short readers) for BUSTED test.
- Remove SRCU-lite testing.
srcu.19.07.2025
- Expedite SRCU-fast grace periods.
- Remove SRCU-lite implementation.
- Add guards for SRCU-fast readers.
rcu.nocb.18.07.2025
- Dump NOCB group leader state on stall detection.
- Robustify nocb_cb_kthread pointer accesses.
- Fix delayed execution of hurry callbacks when LAZY_RCU is enabled.
refscale.07.07.2025
- Fix multiplication overflow in "loops" and "nreaders" calculations.
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Merge tag 'rcu.release.v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Neeraj Upadhyay:
"Expedited grace period updates:
- Protect against early RCU exp quiescent state reporting during exp
grace period initialization
- Remove superfluous barrier in task unblock path
- Remove the CPU online quiescent state report optimization, which is
error prone for certain scenarios
- Add warning for unexpected pending requested expedited quiescent
state on dying CPU
Core:
- Robustify rcu_is_cpu_rrupt_from_idle() by using more accurate
indicators of the actual context tracking state of a CPU
- Handle ->defer_qs_iw_pending field data race
- Enable rcu_normal_wake_from_gp by default on systems with <= 16
CPUs
- Fix lockup in rcu_read_unlock() due to recursive irq_exit() calls
- Refactor expedited handling condition in rcu_read_unlock_special()
- Documentation updates for hotplug and GP init scan ordering,
separation of rcu_state and rnp's gp_seq states, quiescent state
reporting for offline CPUs
torture-scripts:
- Cleanup and improve scripts : remove superfluous warnings for
disabled tests; better handling of kvm.sh --kconfig arg; suppress
some confusing diagnostics; tolerate bad kvm.sh args; add new
diagnostic for build output; fail allmodconfig testing on warnings
- Include RCU_TORTURE_TEST_CHK_RDR_STATE config for KCSAN kernels
- Disable default RCU-tasks and clocksource-wdog testing on arm64
- Add EXPERT Kconfig option for arm64 KCSAN runs
- Remove SRCU-lite testing
rcutorture:
- Start torture writer threads creation after reader threads to
handle race in SRCU-P scenario
- Add SRCU down_read()/up_read() test
- Add diagnostics for delayed SRCU up_read(), unmatched up_read(),
print number of up/down readers and the number of such readers
which migrated to other CPU
- Ignore certain unsupported configurations for trivial RCU test
- Fix splats in RT kernels due to inaccurate checks for BH-disabled
context
- Enable checks and logs to capture intentionally exercised
unexpected scenarios (too short readers) for BUSTED test
- Remove SRCU-lite testing
srcu:
- Expedite SRCU-fast grace periods
- Remove SRCU-lite implementation
- Add guards for SRCU-fast readers
rcu nocb:
- Dump NOCB group leader state on stall detection
- Robustify nocb_cb_kthread pointer accesses
- Fix delayed execution of hurry callbacks when LAZY_RCU is enabled
refscale:
- Fix multiplication overflow in "loops" and "nreaders" calculations"
* tag 'rcu.release.v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (49 commits)
rcu: Document concurrent quiescent state reporting for offline CPUs
rcu: Document separation of rcu_state and rnp's gp_seq
rcu: Document GP init vs hotplug-scan ordering requirements
srcu: Add guards for SRCU-fast readers
rcu: Fix delayed execution of hurry callbacks
rcu: Refactor expedited handling check in rcu_read_unlock_special()
checkpatch: Remove SRCU-lite deprecation
srcu: Remove SRCU-lite implementation
srcu: Expedite SRCU-fast grace periods
rcutorture: Remove support for SRCU-lite
rcutorture: Remove SRCU-lite scenarios
torture: Remove support for SRCU-lite
torture: Make torture.sh --allmodconfig testing fail on warnings
torture: Add "ERROR" diagnostic for testing kernel-build output
torture: Make torture.sh tolerate runs having bad kvm.sh arguments
torture: Add textid.txt file to --do-allmodconfig and --do-rcu-rust runs
torture: Extract testid.txt generation to separate script
torture: Suppress "find" diagnostics from torture.sh --do-none run
torture: Provide EXPERT Kconfig option for arm64 KCSAN torture.sh runs
rcu: Fix rcu_read_unlock() deadloop due to IRQ work
...
|
||
|
Linus Torvalds
|
7dff275c66 |
Kernel Concurrency Sanitizer (KCSAN) updates for v6.17
- A single fix to silence an uninitialized variable warning This change has had a few days of linux-next exposure. -----BEGIN PGP SIGNATURE----- iIcEABYKAC8WIQR7t4b/75lzOR3l5rcxsLN3bbyLnwUCaIdstREcZWx2ZXJAZ29v Z2xlLmNvbQAKCRAxsLN3bbyLnxfiAQCHSdHCyTOTP6YghSkd2ZIqfgQ8O9Y8iKGf EBfa6nvDVQD/bvUioqMpn/IgD6sbp76wbSOjmaJN19AGH8sfQIB13gI= =yGgW -----END PGP SIGNATURE----- Merge tag 'kcsan-20250728-v6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux Pull Kernel Concurrency Sanitizer (KCSAN) update from Marco Elver: - A single fix to silence an uninitialized variable warning * tag 'kcsan-20250728-v6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux: kcsan: test: Initialize dummy variable |
||
Paolo Bonzini
|
196d9e72c4 |
RCU wakeup fix for KVM s390 guest entry
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||
|
Linus Torvalds
|
53564f4005 |
IOMMU Updates for Linux v6.17:
- Core
* Remove the 'pgsize_bitmap' member from 'struct iommu_ops'
* Convert the x86 drivers over to msi_create_parent_irq_domain()
- AMD-Vi
* Add support for examining driver/device internals via debugfs
* Add support for "HATDis" to disable host translation when it is not
supported
* Add support for limiting the maximum host translation level based on
EFR[HATS]
- Apple DART
* Don't enable as built-in by default when ARCH_APPLE is selected
- Arm SMMU
* Devicetree bindings update for the Qualcomm SMMU in the "Milos" SoC
* Support for Qualcomm SM6115 MDSS parts
* Disable PRR on Qualcomm SM8250 as using these bits causes the
hypervisor to explode
- Intel VT-d
* Reorganize Intel VT-d to be ready for iommupt
* Optimize iotlb_sync_map for non-caching/non-RWBF modes
* Fix missed PASID in dev TLB invalidation in cache_tag_flush_all()
- Mediatek
* Fix build warnings when W=1
- Samsung Exynos
* Add support for reserved memory regions specified by the bootloader
- TI OMAP
* Use syscon_regmap_lookup_by_phandle_args() instead of parsing the
node manually
- Misc
* Cleanups and minor fixes across the board
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Merge tag 'iommu-updates-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu updates from Will Deacon:
"Core:
- Remove the 'pgsize_bitmap' member from 'struct iommu_ops'
- Convert the x86 drivers over to msi_create_parent_irq_domain()
AMD-Vi:
- Add support for examining driver/device internals via debugfs
- Add support for "HATDis" to disable host translation when it is not
supported
- Add support for limiting the maximum host translation level based
on EFR[HATS]
Apple DART:
- Don't enable as built-in by default when ARCH_APPLE is selected
Arm SMMU:
- Devicetree bindings update for the Qualcomm SMMU in the "Milos" SoC
- Support for Qualcomm SM6115 MDSS parts
- Disable PRR on Qualcomm SM8250 as using these bits causes the
hypervisor to explode
Intel VT-d:
- Reorganize Intel VT-d to be ready for iommupt
- Optimize iotlb_sync_map for non-caching/non-RWBF modes
- Fix missed PASID in dev TLB invalidation in cache_tag_flush_all()
Mediatek:
- Fix build warnings when W=1
Samsung Exynos:
- Add support for reserved memory regions specified by the bootloader
TI OMAP:
- Use syscon_regmap_lookup_by_phandle_args() instead of parsing the
node manually
Misc:
- Cleanups and minor fixes across the board"
* tag 'iommu-updates-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (48 commits)
iommu/vt-d: Fix UAF on sva unbind with pending IOPFs
iommu/vt-d: Make iotlb_sync_map a static property of dmar_domain
dt-bindings: arm-smmu: Remove sdm845-cheza specific entry
iommu/amd: Fix geometry.aperture_end for V2 tables
iommu/amd: Wrap debugfs ABI testing symbols snippets in literal code blocks
iommu/amd: Add documentation for AMD IOMMU debugfs support
iommu/amd: Add debugfs support to dump IRT Table
iommu/amd: Add debugfs support to dump device table
iommu/amd: Add support for device id user input
iommu/amd: Add debugfs support to dump IOMMU command buffer
iommu/amd: Add debugfs support to dump IOMMU Capability registers
iommu/amd: Add debugfs support to dump IOMMU MMIO registers
iommu/amd: Refactor AMD IOMMU debugfs initial setup
dt-bindings: arm-smmu: document the support on Milos
iommu/exynos: add support for reserved regions
iommu/arm-smmu: disable PRR on SM8250
iommu/arm-smmu-v3: Revert vmaster in the error path
iommu/io-pgtable-arm: Remove unused macro iopte_prot
iommu/arm-smmu-qcom: Add SM6115 MDSS compatible
iommu/qcom: Fix pgsize_bitmap
...
|
||
Li Nan
|
907a99c314 |
md: rename recovery_cp to resync_offset
'recovery_cp' was used to represent the progress of sync, but its name contains recovery, which can cause confusion. Replaces 'recovery_cp' with 'resync_offset' for clarity. Signed-off-by: Li Nan <linan122@huawei.com> Link: https://lore.kernel.org/linux-raid/20250722033340.1933388-1-linan666@huaweicloud.com Signed-off-by: Yu Kuai <yukuai3@huawei.com> |
||
Heming Zhao
|
948b1fe120 |
md/md-cluster: handle REMOVE message earlier
Commit |
||
Yu Kuai
|
1df1fc845d |
md: fix create on open mddev lifetime regression
Commit |
||
Arnaldo Carvalho de Melo
|
59edbec7a5 |
perf python: Stop using deprecated PyUnicode_AsString()
As noticed while building for Fedora 43:
GEN /tmp/build/perf/python/perf.cpython-314-x86_64-linux-gnu.so
/git/perf-6.16.0-rc3/tools/perf/util/python.c: In function ‘get_tracepoint_field’:
/git/perf-6.16.0-rc3/tools/perf/util/python.c:340:9: error: ‘_PyUnicode_AsString’ is deprecated [-Werror=deprecated-declarations]
340 | const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
| ^~~~~
In file included from /usr/include/python3.14/unicodeobject.h:1022,
from /usr/include/python3.14/Python.h:89,
from /git/perf-6.16.0-rc3/tools/perf/util/python.c:2:
/usr/include/python3.14/cpython/unicodeobject.h:648:1: note: declared here
648 | _PyUnicode_AsString(PyObject *unicode)
| ^~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
error: command '/usr/bin/gcc' failed with exit code 1
Use PyUnicode_AsUTF8() instead and also check if PyObject_Str() fails
before doing so.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/aIofXNK8QLtLIaI3@x1
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
|
||
Jaegeuk Kim
|
078cad8212 |
f2fs: drop inode from the donation list when the last file is closed
Let's drop the inode from the donation list when there is no other open file. Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> |
||
|
Linus Torvalds
|
d9104cec3e |
bpf-next-6.17
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||
Bartosz Golaszewski
|
3dca3d51b9 |
ARM: s3c/gpio: complete the conversion to new GPIO value setters
Commit |
||
|
Arnd Bergmann
|
0018c39d0a |
This pull request contains Device Tree fixes for Broadcom ARM-based SoC
platforms, please pull the following: - Florian fixes the bcm7445.dtsi file to conform to the brcm,brcm,brcmstb-memc-ddr.yaml binding after |
||
|
Linus Torvalds
|
8be4d31cb8 |
Networking changes for 6.17.
Core & protocols
----------------
- Wrap datapath globals into net_aligned_data, to avoid false sharing.
- Preserve MSG_ZEROCOPY in forwarding (e.g. out of a container).
- Add SO_INQ and SCM_INQ support to AF_UNIX.
- Add SIOCINQ support to AF_VSOCK.
- Add TCP_MAXSEG sockopt to MPTCP.
- Add IPv6 force_forwarding sysctl to enable forwarding per interface.
- Make TCP validation of whether packet fully fits in the receive
window and the rcv_buf more strict. With increased use of HW
aggregation a single "packet" can be multiple 100s of kB.
- Add MSG_MORE flag to optimize large TCP transmissions via sockmap,
improves latency up to 33% for sockmap users.
- Convert TCP send queue handling from tasklet to BH workque.
- Improve BPF iteration over TCP sockets to see each socket exactly once.
- Remove obsolete and unused TCP RFC3517/RFC6675 loss recovery code.
- Support enabling kernel threads for NAPI processing on per-NAPI
instance basis rather than a whole device. Fully stop the kernel NAPI
thread when threaded NAPI gets disabled. Previously thread would stick
around until ifdown due to tricky synchronization.
- Allow multicast routing to take effect on locally-generated packets.
- Add output interface argument for End.X in segment routing.
- MCTP: add support for gateway routing, improve bind() handling.
- Don't require rtnl_lock when fetching an IPv6 neighbor over Netlink.
- Add a new neighbor flag ("extern_valid"), which cedes refresh
responsibilities to userspace. This is needed for EVPN multi-homing
where a neighbor entry for a multi-homed host needs to be synced
across all the VTEPs among which the host is multi-homed.
- Support NUD_PERMANENT for proxy neighbor entries.
- Add a new queuing discipline for IETF RFC9332 DualQ Coupled AQM.
- Add sequence numbers to netconsole messages. Unregister netconsole's
console when all net targets are removed. Code refactoring.
Add a number of selftests.
- Align IPSec inbound SA lookup to RFC 4301. Only SPI and protocol
should be used for an inbound SA lookup.
- Support inspecting ref_tracker state via DebugFS.
- Don't force bonding advertisement frames tx to ~333 ms boundaries.
Add broadcast_neighbor option to send ARP/ND on all bonded links.
- Allow providing upcall pid for the 'execute' command in openvswitch.
- Remove DCCP support from Netfilter's conntrack.
- Disallow multiple packet duplications in the queuing layer.
- Prevent use of deprecated iptables code on PREEMPT_RT.
Driver API
----------
- Support RSS and hashing configuration over ethtool Netlink.
- Add dedicated ethtool callbacks for getting and setting hashing fields.
- Add support for power budget evaluation strategy in PSE /
Power-over-Ethernet. Generate Netlink events for overcurrent etc.
- Support DPLL phase offset monitoring across all device inputs.
Support providing clock reference and SYNC over separate DPLL
inputs.
- Support traffic classes in devlink rate API for bandwidth management.
- Remove rtnl_lock dependency from UDP tunnel port configuration.
Device drivers
--------------
- Add a new Broadcom driver for 800G Ethernet (bnge).
- Add a standalone driver for Microchip ZL3073x DPLL.
- Remove IBM's NETIUCV device driver.
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- support zero-copy Tx of DMABUF memory
- take page size into account for page pool recycling rings
- Intel (100G, ice, idpf):
- idpf: XDP and AF_XDP support preparations
- idpf: add flow steering
- add link_down_events statistic
- clean up the TSPLL code
- preparations for live VM migration
- nVidia/Mellanox:
- support zero-copy Rx/Tx interfaces (DMABUF and io_uring)
- optimize context memory usage for matchers
- expose serial numbers in devlink info
- support PCIe congestion metrics
- Meta (fbnic):
- add 25G, 50G, and 100G link modes to phylink
- support dumping FW logs
- Marvell/Cavium:
- support for CN20K generation of the Octeon chips
- Amazon:
- add HW clock (without timestamping, just hypervisor time access)
- Ethernet virtual:
- VirtIO net:
- support segmentation of UDP-tunnel-encapsulated packets
- Google (gve):
- support packet timestamping and clock synchronization
- Microsoft vNIC:
- add handler for device-originated servicing events
- allow dynamic MSI-X vector allocation
- support Tx bandwidth clamping
- Ethernet NICs consumer, and embedded:
- AMD:
- amd-xgbe: hardware timestamping and PTP clock support
- Broadcom integrated MACs (bcmgenet, bcmasp):
- use napi_complete_done() return value to support NAPI polling
- add support for re-starting auto-negotiation
- Broadcom switches (b53):
- support BCM5325 switches
- add bcm63xx EPHY power control
- Synopsys (stmmac):
- lots of code refactoring and cleanups
- TI:
- icssg-prueth: read firmware-names from device tree
- icssg: PRP offload support
- Microchip:
- lan78xx: convert to PHYLINK for improved PHY and MAC management
- ksz: add KSZ8463 switch support
- Intel:
- support similar queue priority scheme in multi-queue and
time-sensitive networking (taprio)
- support packet pre-emption in both
- RealTek (r8169):
- enable EEE at 5Gbps on RTL8126
- Airoha:
- add PPPoE offload support
- MDIO bus controller for Airoha AN7583
- Ethernet PHYs:
- support for the IPQ5018 internal GE PHY
- micrel KSZ9477 switch-integrated PHYs:
- add MDI/MDI-X control support
- add RX error counters
- add cable test support
- add Signal Quality Indicator (SQI) reporting
- dp83tg720: improve reset handling and reduce link recovery time
- support bcm54811 (and its MII-Lite interface type)
- air_en8811h: support resume/suspend
- support PHY counters for QCA807x and QCA808x
- support WoL for QCA807x
- CAN drivers:
- rcar_canfd: support for Transceiver Delay Compensation
- kvaser: report FW versions via devlink dev info
- WiFi:
- extended regulatory info support (6 GHz)
- add statistics and beacon monitor for Multi-Link Operation (MLO)
- support S1G aggregation, improve S1G support
- add Radio Measurement action fields
- support per-radio RTS threshold
- some work around how FIPS affects wifi, which was wrong (RC4 is used
by TKIP, not only WEP)
- improvements for unsolicited probe response handling
- WiFi drivers:
- RealTek (rtw88):
- IBSS mode for SDIO devices
- RealTek (rtw89):
- BT coexistence for MLO/WiFi7
- concurrent station + P2P support
- support for USB devices RTL8851BU/RTL8852BU
- Intel (iwlwifi):
- use embedded PNVM in (to be released) FW images to fix
compatibility issues
- many cleanups (unused FW APIs, PCIe code, WoWLAN)
- some FIPS interoperability
- MediaTek (mt76):
- firmware recovery improvements
- more MLO work
- Qualcomm/Atheros (ath12k):
- fix scan on multi-radio devices
- more EHT/Wi-Fi 7 features
- encapsulation/decapsulation offload
- Broadcom (brcm80211):
- support SDIO 43751 device
- Bluetooth:
- hci_event: add support for handling LE BIG Sync Lost event
- ISO: add socket option to report packet seqnum via CMSG
- ISO: support SCM_TIMESTAMPING for ISO TS
- Bluetooth drivers:
- intel_pcie: support Function Level Reset
- nxpuart: add support for 4M baudrate
- nxpuart: implement powerup sequence, reset, FW dump, and FW loading
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Wrap datapath globals into net_aligned_data, to avoid false sharing
- Preserve MSG_ZEROCOPY in forwarding (e.g. out of a container)
- Add SO_INQ and SCM_INQ support to AF_UNIX
- Add SIOCINQ support to AF_VSOCK
- Add TCP_MAXSEG sockopt to MPTCP
- Add IPv6 force_forwarding sysctl to enable forwarding per interface
- Make TCP validation of whether packet fully fits in the receive
window and the rcv_buf more strict. With increased use of HW
aggregation a single "packet" can be multiple 100s of kB
- Add MSG_MORE flag to optimize large TCP transmissions via sockmap,
improves latency up to 33% for sockmap users
- Convert TCP send queue handling from tasklet to BH workque
- Improve BPF iteration over TCP sockets to see each socket exactly
once
- Remove obsolete and unused TCP RFC3517/RFC6675 loss recovery code
- Support enabling kernel threads for NAPI processing on per-NAPI
instance basis rather than a whole device. Fully stop the kernel
NAPI thread when threaded NAPI gets disabled. Previously thread
would stick around until ifdown due to tricky synchronization
- Allow multicast routing to take effect on locally-generated packets
- Add output interface argument for End.X in segment routing
- MCTP: add support for gateway routing, improve bind() handling
- Don't require rtnl_lock when fetching an IPv6 neighbor over Netlink
- Add a new neighbor flag ("extern_valid"), which cedes refresh
responsibilities to userspace. This is needed for EVPN multi-homing
where a neighbor entry for a multi-homed host needs to be synced
across all the VTEPs among which the host is multi-homed
- Support NUD_PERMANENT for proxy neighbor entries
- Add a new queuing discipline for IETF RFC9332 DualQ Coupled AQM
- Add sequence numbers to netconsole messages. Unregister
netconsole's console when all net targets are removed. Code
refactoring. Add a number of selftests
- Align IPSec inbound SA lookup to RFC 4301. Only SPI and protocol
should be used for an inbound SA lookup
- Support inspecting ref_tracker state via DebugFS
- Don't force bonding advertisement frames tx to ~333 ms boundaries.
Add broadcast_neighbor option to send ARP/ND on all bonded links
- Allow providing upcall pid for the 'execute' command in openvswitch
- Remove DCCP support from Netfilter's conntrack
- Disallow multiple packet duplications in the queuing layer
- Prevent use of deprecated iptables code on PREEMPT_RT
Driver API:
- Support RSS and hashing configuration over ethtool Netlink
- Add dedicated ethtool callbacks for getting and setting hashing
fields
- Add support for power budget evaluation strategy in PSE /
Power-over-Ethernet. Generate Netlink events for overcurrent etc
- Support DPLL phase offset monitoring across all device inputs.
Support providing clock reference and SYNC over separate DPLL
inputs
- Support traffic classes in devlink rate API for bandwidth
management
- Remove rtnl_lock dependency from UDP tunnel port configuration
Device drivers:
- Add a new Broadcom driver for 800G Ethernet (bnge)
- Add a standalone driver for Microchip ZL3073x DPLL
- Remove IBM's NETIUCV device driver
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- support zero-copy Tx of DMABUF memory
- take page size into account for page pool recycling rings
- Intel (100G, ice, idpf):
- idpf: XDP and AF_XDP support preparations
- idpf: add flow steering
- add link_down_events statistic
- clean up the TSPLL code
- preparations for live VM migration
- nVidia/Mellanox:
- support zero-copy Rx/Tx interfaces (DMABUF and io_uring)
- optimize context memory usage for matchers
- expose serial numbers in devlink info
- support PCIe congestion metrics
- Meta (fbnic):
- add 25G, 50G, and 100G link modes to phylink
- support dumping FW logs
- Marvell/Cavium:
- support for CN20K generation of the Octeon chips
- Amazon:
- add HW clock (without timestamping, just hypervisor time access)
- Ethernet virtual:
- VirtIO net:
- support segmentation of UDP-tunnel-encapsulated packets
- Google (gve):
- support packet timestamping and clock synchronization
- Microsoft vNIC:
- add handler for device-originated servicing events
- allow dynamic MSI-X vector allocation
- support Tx bandwidth clamping
- Ethernet NICs consumer, and embedded:
- AMD:
- amd-xgbe: hardware timestamping and PTP clock support
- Broadcom integrated MACs (bcmgenet, bcmasp):
- use napi_complete_done() return value to support NAPI polling
- add support for re-starting auto-negotiation
- Broadcom switches (b53):
- support BCM5325 switches
- add bcm63xx EPHY power control
- Synopsys (stmmac):
- lots of code refactoring and cleanups
- TI:
- icssg-prueth: read firmware-names from device tree
- icssg: PRP offload support
- Microchip:
- lan78xx: convert to PHYLINK for improved PHY and MAC management
- ksz: add KSZ8463 switch support
- Intel:
- support similar queue priority scheme in multi-queue and
time-sensitive networking (taprio)
- support packet pre-emption in both
- RealTek (r8169):
- enable EEE at 5Gbps on RTL8126
- Airoha:
- add PPPoE offload support
- MDIO bus controller for Airoha AN7583
- Ethernet PHYs:
- support for the IPQ5018 internal GE PHY
- micrel KSZ9477 switch-integrated PHYs:
- add MDI/MDI-X control support
- add RX error counters
- add cable test support
- add Signal Quality Indicator (SQI) reporting
- dp83tg720: improve reset handling and reduce link recovery time
- support bcm54811 (and its MII-Lite interface type)
- air_en8811h: support resume/suspend
- support PHY counters for QCA807x and QCA808x
- support WoL for QCA807x
- CAN drivers:
- rcar_canfd: support for Transceiver Delay Compensation
- kvaser: report FW versions via devlink dev info
- WiFi:
- extended regulatory info support (6 GHz)
- add statistics and beacon monitor for Multi-Link Operation (MLO)
- support S1G aggregation, improve S1G support
- add Radio Measurement action fields
- support per-radio RTS threshold
- some work around how FIPS affects wifi, which was wrong (RC4 is
used by TKIP, not only WEP)
- improvements for unsolicited probe response handling
- WiFi drivers:
- RealTek (rtw88):
- IBSS mode for SDIO devices
- RealTek (rtw89):
- BT coexistence for MLO/WiFi7
- concurrent station + P2P support
- support for USB devices RTL8851BU/RTL8852BU
- Intel (iwlwifi):
- use embedded PNVM in (to be released) FW images to fix
compatibility issues
- many cleanups (unused FW APIs, PCIe code, WoWLAN)
- some FIPS interoperability
- MediaTek (mt76):
- firmware recovery improvements
- more MLO work
- Qualcomm/Atheros (ath12k):
- fix scan on multi-radio devices
- more EHT/Wi-Fi 7 features
- encapsulation/decapsulation offload
- Broadcom (brcm80211):
- support SDIO 43751 device
- Bluetooth:
- hci_event: add support for handling LE BIG Sync Lost event
- ISO: add socket option to report packet seqnum via CMSG
- ISO: support SCM_TIMESTAMPING for ISO TS
- Bluetooth drivers:
- intel_pcie: support Function Level Reset
- nxpuart: add support for 4M baudrate
- nxpuart: implement powerup sequence, reset, FW dump, and FW loading"
* tag 'net-next-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1742 commits)
dpll: zl3073x: Fix build failure
selftests: bpf: fix legacy netfilter options
ipv6: annotate data-races around rt->fib6_nsiblings
ipv6: fix possible infinite loop in fib6_info_uses_dev()
ipv6: prevent infinite loop in rt6_nlmsg_size()
ipv6: add a retry logic in net6_rt_notify()
vrf: Drop existing dst reference in vrf_ip6_input_dst
net/sched: taprio: align entry index attr validation with mqprio
net: fsl_pq_mdio: use dev_err_probe
selftests: rtnetlink.sh: remove esp4_offload after test
vsock: remove unnecessary null check in vsock_getname()
igb: xsk: solve negative overflow of nb_pkts in zerocopy mode
stmmac: xsk: fix negative overflow of budget in zerocopy mode
dt-bindings: ieee802154: Convert at86rf230.txt yaml format
net: dsa: microchip: Disable PTP function of KSZ8463
net: dsa: microchip: Setup fiber ports for KSZ8463
net: dsa: microchip: Write switch MAC address differently for KSZ8463
net: dsa: microchip: Use different registers for KSZ8463
net: dsa: microchip: Add KSZ8463 switch support to KSZ DSA driver
dt-bindings: net: dsa: microchip: Add KSZ8463 switch support
...
|
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Steven Rostedt
|
623526ba89 |
Documentation: tracing: Add documentation about eprobes
Eprobes was added back in 5.15, but was never documented. It became a "secret" interface even though it has been a topic of several presentations. For some reason, when eprobes was added, documenting it never became a priority, until now. Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/20250730140945.528135548@kernel.org Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> |
||
|
Steven Rostedt
|
0dd1274a05 |
tracing: Have eprobes have their own config option
Eprobes were added in 5.15 and were selected whenever any of the other probe events were selected. If kprobe events were enabled (which it is by default if kprobes are enabled) it would enable eprobe events as well. The same for uprobes and fprobes. Have eprobes have its own config and it gets enabled by default if tracing is enabled. Link: https://lore.kernel.org/all/20250729102636.b7cce553e7cc263722b12365@kernel.org/ Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/20250730140945.360286733@kernel.org Suggested-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> |
||
Norman Maurer
|
6f02527729 |
io_uring/net: Allow to do vectorized send
At the moment you have to use sendmsg for vectorized send. While this works it's suboptimal as it also means you need to allocate a struct msghdr that needs to be kept alive until a submission happens. We can remove this limitation by just allowing to use send directly. Signed-off-by: Norman Maurer <norman_maurer@apple.com> Link: https://lore.kernel.org/r/20250729065952.26646-1-norman_maurer@apple.com [axboe: remove -EINVAL return for SENDMSG and SEND_VECTORIZED] [axboe: allow send_zc to set SEND_VECTORIZED too] Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
Takashi Iwai
|
81231ad173 |
ALSA: hda/hdmi: Enable drivers as default
Like other HD-audio codec drivers, HD-audio HDMI codec driver was split to multiple drivers, and now users are forced to choose the right kconfig items. For smoother upgrade path, keep the previous CONFIG_SND_HDA_CODEC_HDMI as the meuconfig, so that the kconfig can be taken over from the previous config. The all belonging HDMI codec drivers are enabled as default as long as CONFIG_SND_HDA_CODEC_HDMI is set. This is only about the default config, and each driver can be still disabled if user wants to reduce the size, too. The kconfig for the generic HDMI driver is changed to CONFIG_SND_HDA_CODEC_HDMI_GENERIC along with this action. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20250730064639.25617-4-tiwai@suse.de |
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Takashi Iwai
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fc2792a400 |
ALSA: hda/cirrus: Enable drivers as default
Like HD-audio Realtek drivers, Cirrus Logic HD-audio codec driver was split to multiple drivers, too, and now users are forced to choose the right kconfig items. For smoother upgrade path, keep the previous CONFIG_SND_HDA_CODEC_CIRRUS as the menuconfig. The new kconfig CONFIG_SND_HDA_CODEC_CS42* are enabled as default, as long as CONFIG_SND_HDA_CODEC_CIRRUS is set, so that the system with Cirrus codec can keep working. This is only about the default config, and each driver can be still disabled if user wants to reduce the size, too. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20250730064639.25617-3-tiwai@suse.de |
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Takashi Iwai
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1d8dd982c4 |
ALSA: hda/realtek: Enable drivers as default
The recent split of Realtek HD-audio driver forced users to choose the right Kconfigs, but most users have no idea which ones to enable. Although the distros tend to enable all of them, individual users may have their own favorites and miss something needed via the version upgrade. For smoother upgrade path from the previous kernel configuration, now we take the following changes: - CONFIG_SND_HDA_CODEC_REALTEK (which is a menuconfig) is changed from bool to tristate again, so that it can take over from the previous config gracefully. - CONFIG_SND_HDA_CODEC_ALC* receive "default y", so that they are enabled as default as long as CONFIG_SND_HDA_CODEC_REALTEK is set. Those can be still disabled if users want to reduce the size, too. At least this allows users to run "make oldconfig" and push RETURN blindly. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20250730064639.25617-2-tiwai@suse.de |
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Cezary Rojewski
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11f74f48c1 |
ASoC: Intel: avs: Fix uninitialized pointer error in probe()
If pcim_request_all_regions() fails, error path operates on uninitialized 'bus' pointer. Found out by Coverity static analyzer. Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com> Link: https://patch.msgid.link/20250730124906.351798-1-cezary.rojewski@intel.com Signed-off-by: Mark Brown <broonie@kernel.org> |