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2023-08-31Merge tag 'powerpc-6.6-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Add HOTPLUG_SMT support (/sys/devices/system/cpu/smt) and honour the configured SMT state when hotplugging CPUs into the system - Combine final TLB flush and lazy TLB mm shootdown IPIs when using the Radix MMU to avoid a broadcast TLBIE flush on exit - Drop the exclusion between ptrace/perf watchpoints, and drop the now unused associated arch hooks - Add support for the "nohlt" command line option to disable CPU idle - Add support for -fpatchable-function-entry for ftrace, with GCC >= 13.1 - Rework memory block size determination, and support 256MB size on systems with GPUs that have hotpluggable memory - Various other small features and fixes Thanks to Andrew Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Athira Rajeev, Benjamin Gray, Christophe Leroy, Frederic Barrat, Gautam Menghani, Geoff Levand, Hari Bathini, Immad Mir, Jialin Zhang, Joel Stanley, Jordan Niethe, Justin Stitt, Kajol Jain, Kees Cook, Krzysztof Kozlowski, Laurent Dufour, Liang He, Linus Walleij, Mahesh Salgaonkar, Masahiro Yamada, Michal Suchanek, Nageswara R Sastry, Nathan Chancellor, Nathan Lynch, Naveen N Rao, Nicholas Piggin, Nick Desaulniers, Omar Sandoval, Randy Dunlap, Reza Arbab, Rob Herring, Russell Currey, Sourabh Jain, Thomas Gleixner, Trevor Woerner, Uwe Kleine-König, Vaibhav Jain, Xiongfeng Wang, Yuan Tan, Zhang Rui, and Zheng Zengkai. * tag 'powerpc-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (135 commits) macintosh/ams: linux/platform_device.h is needed powerpc/xmon: Reapply "Relax frame size for clang" powerpc/mm/book3s64: Use 256M as the upper limit with coherent device memory attached powerpc/mm/book3s64: Fix build error with SPARSEMEM disabled powerpc/iommu: Fix notifiers being shared by PCI and VIO buses powerpc/mpc5xxx: Add missing fwnode_handle_put() powerpc/config: Disable SLAB_DEBUG_ON in skiroot powerpc/pseries: Remove unused hcall tracing instruction powerpc/pseries: Fix hcall tracepoints with JUMP_LABEL=n powerpc: dts: add missing space before { powerpc/eeh: Use pci_dev_id() to simplify the code powerpc/64s: Move CPU -mtune options into Kconfig powerpc/powermac: Fix unused function warning powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT powerpc: Don't include lppaca.h in paca.h powerpc/pseries: Move hcall_vphn() prototype into vphn.h powerpc/pseries: Move VPHN constants into vphn.h cxl: Drop unused detach_spa() powerpc: Drop zalloc_maybe_bootmem() powerpc/powernv: Use struct opal_prd_msg in more places ...
2023-08-31perf parse-events: Fix propagation of term's no_value when cloningIan Rogers
The no_value field in 'struct parse_events_term' indicates that the val variable isn't used, the case for an event name. Cloning wasn't propagating this, making cloned event name terms appearing to have a constant assinged to them. Working around the bug would check for a value of 1 assigned to value, but then this meant a user value of 1 couldn't be differentiated causing the value to be lost in debug printing and perf list. The change fixes the cloning and updates the "val.num ==/!= 1" tests to use no_value instead. To better check the no_value is set appropriately parameter comments are added for constant values. This found that no_value wasn't set correctly in parse_events_multi_pmu_add, which matters now that no_value is used to indicate an event name. Fixes: 7a6e91644708d514 ("perf parse-events: Make common term list to strbuf helper") Fixes: 99e7138eb7897aa0 ("perf tools: Fail on using multiple bits long terms without value") Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Kan Liang <kan.liang@linux.intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230831071421.2201358-4-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-31perf parse-events: Name the two term enumsIan Rogers
Name the enums used by 'struct parse_events_term' to parse_events__term_val_type and parse_events__term_type. This allows greater compile time error checking. Fix -Wswitch related issues by explicitly listing all enum values prior to default. Add config_term_name to safely look up a parse_events__term_type name, bounds checking the array access first. Add documentation to 'struct parse_events_terms' and reorder to save space. Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Kan Liang <kan.liang@linux.intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230831071421.2201358-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-31perf list: Don't print Unit for "default_core"Ian Rogers
"default_core" was added as a way to demark JSON events whose PMU should be whatever the default core PMU is, previously this had been assumed to be "cpu" but that fails on s390 and ARM. 'perf list' displays the PMU in the event description to save storing it in JSON, but was still comparing against "cpu" and not "default_core", so update this. Fixes: d2045f87154bf67a ("perf jevents: Use "default_core" for events with no Unit") Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Kan Liang <kan.liang@linux.intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230831071421.2201358-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-31Merge tag 'x86_shstk_for_6.6-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 shadow stack support from Dave Hansen: "This is the long awaited x86 shadow stack support, part of Intel's Control-flow Enforcement Technology (CET). CET consists of two related security features: shadow stacks and indirect branch tracking. This series implements just the shadow stack part of this feature, and just for userspace. The main use case for shadow stack is providing protection against return oriented programming attacks. It works by maintaining a secondary (shadow) stack using a special memory type that has protections against modification. When executing a CALL instruction, the processor pushes the return address to both the normal stack and to the special permission shadow stack. Upon RET, the processor pops the shadow stack copy and compares it to the normal stack copy. For more information, refer to the links below for the earlier versions of this patch set" Link: https://lore.kernel.org/lkml/20220130211838.8382-1-rick.p.edgecombe@intel.com/ Link: https://lore.kernel.org/lkml/20230613001108.3040476-1-rick.p.edgecombe@intel.com/ * tag 'x86_shstk_for_6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (47 commits) x86/shstk: Change order of __user in type x86/ibt: Convert IBT selftest to asm x86/shstk: Don't retry vm_munmap() on -EINTR x86/kbuild: Fix Documentation/ reference x86/shstk: Move arch detail comment out of core mm x86/shstk: Add ARCH_SHSTK_STATUS x86/shstk: Add ARCH_SHSTK_UNLOCK x86: Add PTRACE interface for shadow stack selftests/x86: Add shadow stack test x86/cpufeatures: Enable CET CR4 bit for shadow stack x86/shstk: Wire in shadow stack interface x86: Expose thread features in /proc/$PID/status x86/shstk: Support WRSS for userspace x86/shstk: Introduce map_shadow_stack syscall x86/shstk: Check that signal frame is shadow stack mem x86/shstk: Check that SSP is aligned on sigreturn x86/shstk: Handle signals for shadow stack x86/shstk: Introduce routines modifying shstk x86/shstk: Handle thread shadow stack x86/shstk: Add user-mode shadow stack support ...
2023-08-31Merge tag 'kvm-x86-svm-6.6' of https://github.com/kvm-x86/linux into HEADPaolo Bonzini
KVM: x86: SVM changes for 6.6: - Add support for SEV-ES DebugSwap, i.e. allow SEV-ES guests to use debug registers and generate/handle #DBs - Clean up LBR virtualization code - Fix a bug where KVM fails to set the target pCPU during an IRTE update - Fix fatal bugs in SEV-ES intrahost migration - Fix a bug where the recent (architecturally correct) change to reinject #BP and skip INT3 broke SEV guests (can't decode INT3 to skip it)
2023-08-31Merge tag 'kvm-riscv-6.6-1' of https://github.com/kvm-riscv/linux into HEADPaolo Bonzini
KVM/riscv changes for 6.6 - Zba, Zbs, Zicntr, Zicsr, Zifencei, and Zihpm support for Guest/VM - Added ONE_REG interface for SATP mode - Added ONE_REG interface to enable/disable multiple ISA extensions - Improved error codes returned by ONE_REG interfaces - Added KVM_GET_REG_LIST ioctl() implementation for KVM RISC-V - Added get-reg-list selftest for KVM RISC-V
2023-08-31Merge tag 'kvm-s390-next-6.6-1' of ↵Paolo Bonzini
https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD - PV crypto passthrough enablement (Tony, Steffen, Viktor, Janosch) Allows a PV guest to use crypto cards. Card access is governed by the firmware and once a crypto queue is "bound" to a PV VM every other entity (PV or not) looses access until it is not bound anymore. Enablement is done via flags when creating the PV VM. - Guest debug fixes (Ilya)
2023-08-31Merge tag 'kvm-x86-selftests-6.6' of https://github.com/kvm-x86/linux into HEADPaolo Bonzini
KVM: x86: Selftests changes for 6.6: - Add testcases to x86's sync_regs_test for detecting KVM TOCTOU bugs - Add support for printf() in guest code and covert all guest asserts to use printf-based reporting - Clean up the PMU event filter test and add new testcases - Include x86 selftests in the KVM x86 MAINTAINERS entry
2023-08-31selftests/bpf: Fix d_path testJiri Olsa
Recent commit [1] broke d_path test, because now filp_close is not called directly from sys_close, but eventually later when the file is finally released. As suggested by Hou Tao we don't need to re-hook the bpf program, but just instead we can use sys_close_range to trigger filp_close synchronously. [1] 021a160abf62 ("fs: use __fput_sync in close(2)") Suggested-by: Hou Tao <houtao@huaweicloud.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20230831141103.359810-1-jolsa@kernel.org
2023-08-31Merge patch series "RISC-V: mm: Make SV48 the default address space"Palmer Dabbelt
Charlie Jenkins <charlie@rivosinc.com> says: Make sv48 the default address space for mmap as some applications currently depend on this assumption. Users can now select a desired address space using a non-zero hint address to mmap. Previously, requesting the default address space from mmap by passing zero as the hint address would result in using the largest address space possible. Some applications depend on empty bits in the virtual address space, like Go and Java, so this patch provides more flexibility for application developers. * b4-shazam-merge: RISC-V: mm: Document mmap changes RISC-V: mm: Update pgtable comment documentation RISC-V: mm: Add tests for RISC-V mm RISC-V: mm: Restrict address space for sv39,sv48,sv57 Link: https://lore.kernel.org/r/20230809232218.849726-1-charlie@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-08-30Merge tag 'for-linus-iommufd' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd Pull iommufd updates from Jason Gunthorpe: "On top of the vfio updates is built some new iommufd functionality: - IOMMU_HWPT_ALLOC allows userspace to directly create the low level IO Page table objects and affiliate them with IOAS objects that hold the translation mapping. This is the basic functionality for the normal IOMMU_DOMAIN_PAGING domains. - VFIO_DEVICE_ATTACH_IOMMUFD_PT can be used to replace the current translation. This is wired up to through all the layers down to the driver so the driver has the ability to implement a hitless replacement. This is necessary to fully support guest behaviors when emulating HW (eg guest atomic change of translation) - IOMMU_GET_HW_INFO returns information about the IOMMU driver HW that owns a VFIO device. This includes support for the Intel iommu, and patches have been posted for all the other server IOMMU. Along the way are a number of internal items: - New iommufd kernel APIs: iommufd_ctx_has_group(), iommufd_device_to_ictx(), iommufd_device_to_id(), iommufd_access_detach(), iommufd_ctx_from_fd(), iommufd_device_replace() - iommufd now internally tracks iommu_groups as it needs some per-group data - Reorganize how the internal hwpt allocation flows to have more robust locking - Improve the access interfaces to support detach and replace of an IOAS from an access - New selftests and a rework of how the selftests creates a mock iommu driver to be more like a real iommu driver" Link: https://lore.kernel.org/lkml/ZO%2FTe6LU1ENf58ZW@nvidia.com/ * tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd: (34 commits) iommufd/selftest: Don't leak the platform device memory when unloading the module iommu/vt-d: Implement hw_info for iommu capability query iommufd/selftest: Add coverage for IOMMU_GET_HW_INFO ioctl iommufd: Add IOMMU_GET_HW_INFO iommu: Add new iommu op to get iommu hardware information iommu: Move dev_iommu_ops() to private header iommufd: Remove iommufd_ref_to_users() iommufd/selftest: Make the mock iommu driver into a real driver vfio: Support IO page table replacement iommufd/selftest: Add IOMMU_TEST_OP_ACCESS_REPLACE_IOAS coverage iommufd: Add iommufd_access_replace() API iommufd: Use iommufd_access_change_ioas in iommufd_access_destroy_object iommufd: Add iommufd_access_change_ioas(_id) helpers iommufd: Allow passing in iopt_access_list_id to iopt_remove_access() vfio: Do not allow !ops->dma_unmap in vfio_pin/unpin_pages() iommufd/selftest: Add a selftest for IOMMU_HWPT_ALLOC iommufd/selftest: Return the real idev id from selftest mock_domain iommufd: Add IOMMU_HWPT_ALLOC iommufd/selftest: Test iommufd_device_replace() iommufd: Make destroy_rwsem use a lock class per object type ...
2023-08-30perf vendor events intel: Fix modifier in tma_info_system_mem_parallel_reads ↵Ian Rogers
for skylake The metric is using the wrong format encoding. This fix is in the converter script PR: https://github.com/intel/perfmon/pull/101 Committer testing: Tested on a Lenovo t480s, before 'perf test 100' was failing with: # perf test 100 100: perf all metrics test : FAILED! With 'perf test -vv 100' we can see: <SNIP> Testing MemoryBW Not grouping metric tma_fb_full's events. Try disabling the NMI watchdog to comply NO_NMI_WATCHDOG metric constraint: echo 0 > /proc/sys/kernel/nmi_watchdog perf stat ... echo 1 > /proc/sys/kernel/nmi_watchdog event syntax error: '...DATA_READ/thresh=1,metric-id=UNC_ARB_TRK_OCCUPANCY.DATA_READ!3thresh!21!3/,UNC_ARB_TRK_OCCUPANCY.DATA_READ/metric-id=UNC_ARB_TRK_OCCUPANCY.DATA_READ/}:W,duration_time' \___ Bad event or PMU Unable to find PMU or event on a PMU of 'UNC_ARB_TRK_OCCUPANCY.DATA_READ' <SNIP> With the patch this problem is gone. Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Samantha Alt <samantha.alt@intel.com> Cc: Weilin Wang <weilin.wang@intel.com> Link: https://lore.kernel.org/r/20230830175543.1911892-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-30perf dlfilter: Avoid leak in v0 API test use of resolve_address()Adrian Hunter
The introduction of reference counting causes the v0 API perf_dlfilter_fns.resolve_address() to leak. v2 API introduced perf_dlfilter_fns.al_cleanup() to prevent that. For the v0 API, avoid the leak by exiting the addr_location immediately, since the documentation makes it clear that pointers obtained via perf_dlfilter_fns are not necessarily valid (dereferenceable) after 'filter_event' and 'filter_event_early' return. Reported-by: kernel test robot <oliver.sang@intel.com> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Closes: https://lore.kernel.org/oe-lkp/202308232146.94d82cb4-oliver.sang@intel.com Link: http://lore.kernel.org/lkml/20230830090539.68206-1-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-30perf metric: Add #num_cpus_online literalIan Rogers
Returns the number of CPUs online, unlike #num_cpus that returns the number present. Add a test of the property. This will be used in future Intel metrics. Reviewed-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Eduard Zingerman <eddyz87@gmail.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20230830073026.1829912-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-30perf pmu: Remove str from perf_pmu_aliasIan Rogers
Currently the value is only used in perf list. Compute the value just when needed to avoid unnecessary overhead. Recycle the strbuf to avoid memory allocation overhead. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20230830070753.1821629-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-30perf parse-events: Make common term list to strbuf helperIan Rogers
A term list is turned into a string for debug output and for the str value in the alias. Add a helper to do this based on existing code, but then fix for situations like events being identified. Use strbuf to manage the dynamic memory allocation and remove the 256 byte limit. Use in various places the string of the term list is required. Before: $ sudo perf stat -vv -e inst_retired.any true Using CPUID GenuineIntel-6-8D-1 intel_pt default config: tsc,mtc,mtc_period=3,psb_period=3,pt,branch Attempting to add event pmu 'cpu' with 'inst_retired.any,' that may result in non-fatal errors After aliases, add event pmu 'cpu' with 'event,period,' that may result in non-fatal errors inst_retired.any -> cpu/inst_retired.any/ ... After: $ sudo perf stat -vv -e inst_retired.any true Using CPUID GenuineIntel-6-8D-1 intel_pt default config: tsc,mtc,mtc_period=3,psb_period=3,pt,branch Attempt to add: cpu/inst_retired.any/ ..after resolving event: cpu/event=0xc0,period=0x1e8483/ inst_retired.any -> cpu/event=0xc0,period=0x1e8483/ ... Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20230830070753.1821629-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-30perf parse-events: Minor help message improvementsIan Rogers
Be more specific and fix a typo. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20230830070753.1821629-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-30perf pmu: Avoid uninitialized use of alias->strIan Rogers
alias is allocated with malloc allowing uninitialized memory to be accessed. The initialization of str was moved late after it could have been updated by a JSON event, however, this create a potential for an uninitialized use. Fix this by assigning str to NULL early. Testing on ARM (Raspberry Pi) showed a memory leak in the same code so add a zfree. Fixes: f63a536f03a2f64f ("perf pmu: Merge JSON events with sysfs at load time") Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sumanth Korikkar <sumanthk@linux.ibm.com> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: https://lore.kernel.org/r/20230830000545.1638964-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-30Merge tag 'sound-6.6-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "We've received a fairly wide range of changes at this time, including for ALSA and ASoC core, but all of them are rather small changes. Here are some highlights: ALSA / ASoC Core: - Fixes of inconsistent locking around control API helpers - A few new control API functions and cleanups - Workarounds for potential UAFs by delayed kobj releases - Unified PCM copy ops with iov_iter - Continued efforts for ASoC API cleanups ASoC: - An adaptor to allow use of IIO DACs and ADCs in ASoC which pulls in some IIO changes - Create a library function for intlog10() and use it in the NAU8825 driver - Convert drivers to use the more modern maple tree register cache - Lots of work on the SOF framework, AMD and Intel drivers, including a lot of cleanup and new device support - Standardization of the presentation of jacks from drivers - Provision of some generic sound card DT properties - Support for AMD Van Gogh, AMD machines with MAX98388 and NAU8821, AWInic AW88261, Cirrus Logic CS35L36 and CS42L43, various Intel platforms including AVS machines with ES8336 and RT5663, Mediatek MT7986, NXP i.MX93, RealTek RT1017 and StarFive JH7110 Others: - New test coverage including ASoC and topology tests in KUnit; this also involves enabling UML builds of ALSA since that's the default KUnit test environment which pulls in the addition of some stubs to the driver - More enhancement of pcmtest driver - A few fixes / enhancements of MIDI 2.0 UMP core - Using PCI definitions in allover HD-audio code - Support for Cirrus CS35L56 and TI TAS2781 HD-audio sub-codecs - CS35L41 HD-audio sub-codec improvements - Continued emu10k1 improvements" * tag 'sound-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (693 commits) ALSA: pcm: Fix missing fixup call in compat hw_refine ioctl ASoC: dwc: i2s: Fix unused functions ALSA: usb-audio: Don't try to submit URBs after disconnection ALSA: emu10k1: add separate documentation for E-MU cards ALSA: emu10k1: more documentation updates ALSA: emu10k1: de-duplicate audigy-mixer.rst vs. sb-live-mixer.rst ALSA: ump: Fix -Wformat-truncation warnings ALSA: hda: Add missing dependency on CONFIG_EFI for Cirrus/TI sub-codecs ALSA: doc: Fix missing backquote in midi-2.0.rst ALSA: hda/realtek: Add quirk for mute LEDs on HP ENVY x360 15-eu0xxx ALSA: hda/tas2781: Switch back to use struct i2c_driver's .probe() ASoC: soc-core.c: Do not error if a DAI link component is not found ASoC: codecs: Fix error code in aw88261_i2c_probe() ASoC: audio-graph-card.c: move audio_graph_parse_of() ASoC: cs42l43: Use new-style PM runtime macros ALSA: documentation: Add description for USB MIDI 2.0 gadget driver ALSA: ump: Don't create unused substreams for static blocks ALSA: ump: Fill group names for legacy rawmidi substreams ALSA: usb-audio: Attach legacy rawmidi after probing all UMP EPs ALSA: ac97: Fix possible error value of *rac97 ...
2023-08-30Merge tag 'x86_apic_for_6.6-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 apic updates from Dave Hansen: "This includes a very thorough rework of the 'struct apic' handlers. Quite a variety of them popped up over the years, especially in the 32-bit days when odd apics were much more in vogue. The end result speaks for itself, which is a removal of a ton of code and static calls to replace indirect calls. If there's any breakage here, it's likely to be around the 32-bit museum pieces that get light to no testing these days. Summary: - Rework apic callbacks, getting rid of unnecessary ones and coalescing lots of silly duplicates. - Use static_calls() instead of indirect calls for apic->foo() - Tons of cleanups an crap removal along the way" * tag 'x86_apic_for_6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (64 commits) x86/apic: Turn on static calls x86/apic: Provide static call infrastructure for APIC callbacks x86/apic: Wrap IPI calls into helper functions x86/apic: Mark all hotpath APIC callback wrappers __always_inline x86/xen/apic: Mark apic __ro_after_init x86/apic: Convert other overrides to apic_update_callback() x86/apic: Replace acpi_wake_cpu_handler_update() and apic_set_eoi_cb() x86/apic: Provide apic_update_callback() x86/xen/apic: Use standard apic driver mechanism for Xen PV x86/apic: Provide common init infrastructure x86/apic: Wrap apic->native_eoi() into a helper x86/apic: Nuke ack_APIC_irq() x86/apic: Remove pointless arguments from [native_]eoi_write() x86/apic/noop: Tidy up the code x86/apic: Remove pointless NULL initializations x86/apic: Sanitize APIC ID range validation x86/apic: Prepare x2APIC for using apic::max_apic_id x86/apic: Simplify X2APIC ID validation x86/apic: Add max_apic_id member x86/apic: Wrap APIC ID validation into an inline ...
2023-08-30selftests/landlock: Fix a resource leakDing Xiang
The opened file should be closed before return, otherwise resource leak will occur. Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com> Link: https://lore.kernel.org/r/20230830101148.3738-1-dingxiang@cmss.chinamobile.com Fixes: 3de64b656b3c ("selftests/landlock: Add supports_filesystem() helper") Signed-off-by: Mickaël Salaün <mic@digikod.net>
2023-08-30selftests/bpf: Fix flaky cgroup_iter_sleepable subtestYonghong Song
Occasionally, with './test_progs -j' on my vm, I will hit the following failure: test_cgrp_local_storage:PASS:join_cgroup /cgrp_local_storage 0 nsec test_cgroup_iter_sleepable:PASS:skel_open 0 nsec test_cgroup_iter_sleepable:PASS:skel_load 0 nsec test_cgroup_iter_sleepable:PASS:attach_iter 0 nsec test_cgroup_iter_sleepable:PASS:iter_create 0 nsec test_cgroup_iter_sleepable:FAIL:cgroup_id unexpected cgroup_id: actual 1 != expected 2812 #48/5 cgrp_local_storage/cgroup_iter_sleepable:FAIL #48 cgrp_local_storage:FAIL Finally, I decided to do some investigation since the test is introduced by myself. It turns out the reason is due to cgroup_fd with value 0. In cgroup_iter, a cgroup_fd of value 0 means the root cgroup. /* from cgroup_iter.c */ if (fd) cgrp = cgroup_v1v2_get_from_fd(fd); else if (id) cgrp = cgroup_get_from_id(id); else /* walk the entire hierarchy by default. */ cgrp = cgroup_get_from_path("/"); That is why we got cgroup_id 1 instead of expected 2812. Why we got a cgroup_fd 0? Nobody should really touch 'stdin' (fd 0) in test_progs. I traced 'close' syscall with stack trace and found the root cause, which is a bug in bpf_obj_pinning.c. Basically, the code closed fd 0 although it should not. Fixing the bug in bpf_obj_pinning.c also resolved the above cgroup_iter_sleepable subtest failure. Fixes: 3b22f98e5a05 ("selftests/bpf: Add path_fd-based BPF_OBJ_PIN and BPF_OBJ_GET tests") Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20230827150551.1743497-1-yonghong.song@linux.dev
2023-08-30bpftool: Fix build warnings with -Wtype-limitsYafang Shao
Quentin reported build warnings when building bpftool : link.c: In function ‘perf_config_hw_cache_str’: link.c:86:18: warning: comparison of unsigned expression in ‘>= 0’ is always true [-Wtype-limits] 86 | if ((id) >= 0 && (id) < ARRAY_SIZE(array)) \ | ^~ link.c:320:20: note: in expansion of macro ‘perf_event_name’ 320 | hw_cache = perf_event_name(evsel__hw_cache, config & 0xff); | ^~~~~~~~~~~~~~~ [... more of the same for the other calls to perf_event_name ...] He also pointed out the reason and the solution: We're always passing unsigned, so it should be safe to drop the check on (id) >= 0. Fixes: 62b57e3ddd64 ("bpftool: Add perf event names") Reported-by: Quentin Monnet <quentin@isovalent.com> Suggested-by: Quentin Monnet <quentin@isovalent.com> Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Quentin Monnet <quentin@isovalent.com> Closes: https://lore.kernel.org/bpf/a35d9a2d-54a0-49ec-9ed1-8fcf1369d3cc@isovalent.com Link: https://lore.kernel.org/bpf/20230830030325.3786-1-laoar.shao@gmail.com
2023-08-29Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linuxLinus Torvalds
Pull block updates from Jens Axboe: "Pretty quiet round for this release. This contains: - Add support for zoned storage to ublk (Andreas, Ming) - Series improving performance for drivers that mark themselves as needing a blocking context for issue (Bart) - Cleanup the flush logic (Chengming) - sed opal keyring support (Greg) - Fixes and improvements to the integrity support (Jinyoung) - Add some exports for bcachefs that we can hopefully delete again in the future (Kent) - deadline throttling fix (Zhiguo) - Series allowing building the kernel without buffer_head support (Christoph) - Sanitize the bio page adding flow (Christoph) - Write back cache fixes (Christoph) - MD updates via Song: - Fix perf regression for raid0 large sequential writes (Jan) - Fix split bio iostat for raid0 (David) - Various raid1 fixes (Heinz, Xueshi) - raid6test build fixes (WANG) - Deprecate bitmap file support (Christoph) - Fix deadlock with md sync thread (Yu) - Refactor md io accounting (Yu) - Various non-urgent fixes (Li, Yu, Jack) - Various fixes and cleanups (Arnd, Azeem, Chengming, Damien, Li, Ming, Nitesh, Ruan, Tejun, Thomas, Xu)" * tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux: (113 commits) block: use strscpy() to instead of strncpy() block: sed-opal: keyring support for SED keys block: sed-opal: Implement IOC_OPAL_REVERT_LSP block: sed-opal: Implement IOC_OPAL_DISCOVERY blk-mq: prealloc tags when increase tagset nr_hw_queues blk-mq: delete redundant tagset map update when fallback blk-mq: fix tags leak when shrink nr_hw_queues ublk: zoned: support REQ_OP_ZONE_RESET_ALL md: raid0: account for split bio in iostat accounting md/raid0: Fix performance regression for large sequential writes md/raid0: Factor out helper for mapping and submitting a bio md raid1: allow writebehind to work on any leg device set WriteMostly md/raid1: hold the barrier until handle_read_error() finishes md/raid1: free the r1bio before waiting for blocked rdev md/raid1: call free_r1bio() before allow_barrier() in raid_end_bio_io() blk-cgroup: Fix NULL deref caused by blkg_policy_data being installed before init drivers/rnbd: restore sysfs interface to rnbd-client md/raid5-cache: fix null-ptr-deref for r5l_flush_stripe_to_raid() raid6: test: only check for Altivec if building on powerpc hosts raid6: test: make sure all intermediate and artifact files are .gitignored ...
2023-08-29Merge tag 'for-6.6/io_uring-2023-08-28' of git://git.kernel.dk/linuxLinus Torvalds
Pull io_uring updates from Jens Axboe: "Fairly quiet round in terms of features, mostly just improvements all over the map for existing code. In detail: - Initial support for socket operations through io_uring. Latter half of this will likely land with the 6.7 kernel, then allowing things like get/setsockopt (Breno) - Cleanup of the cancel code, and then adding support for canceling requests with the opcode as the key (me) - Improvements for the io-wq locking (me) - Fix affinity setting for SQPOLL based io-wq (me) - Remove the io_uring userspace code. These were added initially as copies from liburing, but all of them have since bitrotted and are way out of date at this point. Rather than attempt to keep them in sync, just get rid of them. People will have liburing available anyway for these examples. (Pavel) - Series improving the CQ/SQ ring caching (Pavel) - Misc fixes and cleanups (Pavel, Yue, me)" * tag 'for-6.6/io_uring-2023-08-28' of git://git.kernel.dk/linux: (47 commits) io_uring: move iopoll ctx fields around io_uring: move multishot cqe cache in ctx io_uring: separate task_work/waiting cache line io_uring: banish non-hot data to end of io_ring_ctx io_uring: move non aligned field to the end io_uring: add option to remove SQ indirection io_uring: compact SQ/CQ heads/tails io_uring: force inline io_fill_cqe_req io_uring: merge iopoll and normal completion paths io_uring: reorder cqring_flush and wakeups io_uring: optimise extra io_get_cqe null check io_uring: refactor __io_get_cqe() io_uring: simplify big_cqe handling io_uring: cqe init hardening io_uring: improve cqe !tracing hot path io_uring/rsrc: Annotate struct io_mapped_ubuf with __counted_by io_uring/sqpoll: fix io-wq affinity when IORING_SETUP_SQPOLL is used io_uring: simplify io_run_task_work_sig return io_uring/rsrc: keep one global dummy_ubuf io_uring: never overflow io_aux_cqe ...
2023-08-29Merge tag 'mm-nonmm-stable-2023-08-28-22-48' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: - An extensive rework of kexec and crash Kconfig from Eric DeVolder ("refactor Kconfig to consolidate KEXEC and CRASH options") - kernel.h slimming work from Andy Shevchenko ("kernel.h: Split out a couple of macros to args.h") - gdb feature work from Kuan-Ying Lee ("Add GDB memory helper commands") - vsprintf inclusion rationalization from Andy Shevchenko ("lib/vsprintf: Rework header inclusions") - Switch the handling of kdump from a udev scheme to in-kernel handling, by Eric DeVolder ("crash: Kernel handling of CPU and memory hot un/plug") - Many singleton patches to various parts of the tree * tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (81 commits) document while_each_thread(), change first_tid() to use for_each_thread() drivers/char/mem.c: shrink character device's devlist[] array x86/crash: optimize CPU changes crash: change crash_prepare_elf64_headers() to for_each_possible_cpu() crash: hotplug support for kexec_load() x86/crash: add x86 crash hotplug support crash: memory and CPU hotplug sysfs attributes kexec: exclude elfcorehdr from the segment digest crash: add generic infrastructure for crash hotplug support crash: move a few code bits to setup support of crash hotplug kstrtox: consistently use _tolower() kill do_each_thread() nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse scripts/bloat-o-meter: count weak symbol sizes treewide: drop CONFIG_EMBEDDED lockdep: fix static memory detection even more lib/vsprintf: declare no_hash_pointers in sprintf.h lib/vsprintf: split out sprintf() and friends kernel/fork: stop playing lockless games for exe_file replacement adfs: delete unused "union adfs_dirtail" definition ...
2023-08-29Merge tag 'mm-stable-2023-08-28-18-26' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list") - Peter Xu has a series (mm/gup: Unify hugetlb, speed up thp") which reduces the special-case code for handling hugetlb pages in GUP. It also speeds up GUP handling of transparent hugepages. - Peng Zhang provides some maple tree speedups ("Optimize the fast path of mas_store()"). - Sergey Senozhatsky has improved te performance of zsmalloc during compaction (zsmalloc: small compaction improvements"). - Domenico Cerasuolo has developed additional selftest code for zswap ("selftests: cgroup: add zswap test program"). - xu xin has doe some work on KSM's handling of zero pages. These changes are mainly to enable the user to better understand the effectiveness of KSM's treatment of zero pages ("ksm: support tracking KSM-placed zero-pages"). - Jeff Xu has fixes the behaviour of memfd's MEMFD_NOEXEC_SCOPE_NOEXEC_ENFORCED sysctl ("mm/memfd: fix sysctl MEMFD_NOEXEC_SCOPE_NOEXEC_ENFORCED"). - David Howells has fixed an fscache optimization ("mm, netfs, fscache: Stop read optimisation when folio removed from pagecache"). - Axel Rasmussen has given userfaultfd the ability to simulate memory poisoning ("add UFFDIO_POISON to simulate memory poisoning with UFFD"). - Miaohe Lin has contributed some routine maintenance work on the memory-failure code ("mm: memory-failure: remove unneeded PageHuge() check"). - Peng Zhang has contributed some maintenance work on the maple tree code ("Improve the validation for maple tree and some cleanup"). - Hugh Dickins has optimized the collapsing of shmem or file pages into THPs ("mm: free retracted page table by RCU"). - Jiaqi Yan has a patch series which permits us to use the healthy subpages within a hardware poisoned huge page for general purposes ("Improve hugetlbfs read on HWPOISON hugepages"). - Kemeng Shi has done some maintenance work on the pagetable-check code ("Remove unused parameters in page_table_check"). - More folioification work from Matthew Wilcox ("More filesystem folio conversions for 6.6"), ("Followup folio conversions for zswap"). And from ZhangPeng ("Convert several functions in page_io.c to use a folio"). - page_ext cleanups from Kemeng Shi ("minor cleanups for page_ext"). - Baoquan He has converted some architectures to use the GENERIC_IOREMAP ioremap()/iounmap() code ("mm: ioremap: Convert architectures to take GENERIC_IOREMAP way"). - Anshuman Khandual has optimized arm64 tlb shootdown ("arm64: support batched/deferred tlb shootdown during page reclamation/migration"). - Better maple tree lockdep checking from Liam Howlett ("More strict maple tree lockdep"). Liam also developed some efficiency improvements ("Reduce preallocations for maple tree"). - Cleanup and optimization to the secondary IOMMU TLB invalidation, from Alistair Popple ("Invalidate secondary IOMMU TLB on permission upgrade"). - Ryan Roberts fixes some arm64 MM selftest issues ("selftests/mm fixes for arm64"). - Kemeng Shi provides some maintenance work on the compaction code ("Two minor cleanups for compaction"). - Some reduction in mmap_lock pressure from Matthew Wilcox ("Handle most file-backed faults under the VMA lock"). - Aneesh Kumar contributes code to use the vmemmap optimization for DAX on ppc64, under some circumstances ("Add support for DAX vmemmap optimization for ppc64"). - page-ext cleanups from Kemeng Shi ("add page_ext_data to get client data in page_ext"), ("minor cleanups to page_ext header"). - Some zswap cleanups from Johannes Weiner ("mm: zswap: three cleanups"). - kmsan cleanups from ZhangPeng ("minor cleanups for kmsan"). - VMA handling cleanups from Kefeng Wang ("mm: convert to vma_is_initial_heap/stack()"). - DAMON feature work from SeongJae Park ("mm/damon/sysfs-schemes: implement DAMOS tried total bytes file"), ("Extend DAMOS filters for address ranges and DAMON monitoring targets"). - Compaction work from Kemeng Shi ("Fixes and cleanups to compaction"). - Liam Howlett has improved the maple tree node replacement code ("maple_tree: Change replacement strategy"). - ZhangPeng has a general code cleanup - use the K() macro more widely ("cleanup with helper macro K()"). - Aneesh Kumar brings memmap-on-memory to ppc64 ("Add support for memmap on memory feature on ppc64"). - pagealloc cleanups from Kemeng Shi ("Two minor cleanups for pcp list in page_alloc"), ("Two minor cleanups for get pageblock migratetype"). - Vishal Moola introduces a memory descriptor for page table tracking, "struct ptdesc" ("Split ptdesc from struct page"). - memfd selftest maintenance work from Aleksa Sarai ("memfd: cleanups for vm.memfd_noexec"). - MM include file rationalization from Hugh Dickins ("arch: include asm/cacheflush.h in asm/hugetlb.h"). - THP debug output fixes from Hugh Dickins ("mm,thp: fix sloppy text output"). - kmemleak improvements from Xiaolei Wang ("mm/kmemleak: use object_cache instead of kmemleak_initialized"). - More folio-related cleanups from Matthew Wilcox ("Remove _folio_dtor and _folio_order"). - A VMA locking scalability improvement from Suren Baghdasaryan ("Per-VMA lock support for swap and userfaults"). - pagetable handling cleanups from Matthew Wilcox ("New page table range API"). - A batch of swap/thp cleanups from David Hildenbrand ("mm/swap: stop using page->private on tail pages for THP_SWAP + cleanups"). - Cleanups and speedups to the hugetlb fault handling from Matthew Wilcox ("Change calling convention for ->huge_fault"). - Matthew Wilcox has also done some maintenance work on the MM subsystem documentation ("Improve mm documentation"). * tag 'mm-stable-2023-08-28-18-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (489 commits) maple_tree: shrink struct maple_tree maple_tree: clean up mas_wr_append() secretmem: convert page_is_secretmem() to folio_is_secretmem() nios2: fix flush_dcache_page() for usage from irq context hugetlb: add documentation for vma_kernel_pagesize() mm: add orphaned kernel-doc to the rst files. mm: fix clean_record_shared_mapping_range kernel-doc mm: fix get_mctgt_type() kernel-doc mm: fix kernel-doc warning from tlb_flush_rmaps() mm: remove enum page_entry_size mm: allow ->huge_fault() to be called without the mmap_lock held mm: move PMD_ORDER to pgtable.h mm: remove checks for pte_index memcg: remove duplication detection for mem_cgroup_uncharge_swap mm/huge_memory: work on folio->swap instead of page->private when splitting folio mm/swap: inline folio_set_swap_entry() and folio_swap_entry() mm/swap: use dedicated entry for swap in folio mm/swap: stop using page->private on tail pages for THP_SWAP selftests/mm: fix WARNING comparing pointer to 0 selftests: cgroup: fix test_kmem_memcg_deletion kernel mem check ...
2023-08-29Merge tag 'linux-cpupower-6.6-rc2' of ↵Rafael J. Wysocki
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux Merge additional cpupower utility update for 6.6 from Shuah Khan: "This cpupower update [...] consists of a single fix to add Georgian translation to Makefile LANGUAGES." * tag 'linux-cpupower-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux: cpupower: Add Georgian translation to Makefile LANGUAGES
2023-08-29Merge tag 'net-next-6.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Paolo Abeni: "Core: - Increase size limits for to-be-sent skb frag allocations. This allows tun, tap devices and packet sockets to better cope with large writes operations - Store netdevs in an xarray, to simplify iterating over netdevs - Refactor nexthop selection for multipath routes - Improve sched class lifetime handling - Add backup nexthop ID support for bridge - Implement drop reasons support in openvswitch - Several data races annotations and fixes - Constify the sk parameter of routing functions - Prepend kernel version to netconsole message Protocols: - Implement support for TCP probing the peer being under memory pressure - Remove hard coded limitation on IPv6 specific info placement inside the socket struct - Get rid of sysctl_tcp_adv_win_scale and use an auto-estimated per socket scaling factor - Scaling-up the IPv6 expired route GC via a separated list of expiring routes - In-kernel support for the TLS alert protocol - Better support for UDP reuseport with connected sockets - Add NEXT-C-SID support for SRv6 End.X behavior, reducing the SR header size - Get rid of additional ancillary per MPTCP connection struct socket - Implement support for BPF-based MPTCP packet schedulers - Format MPTCP subtests selftests results in TAP - Several new SMC 2.1 features including unique experimental options, max connections per lgr negotiation, max links per lgr negotiation BPF: - Multi-buffer support in AF_XDP - Add multi uprobe BPF links for attaching multiple uprobes and usdt probes, which is significantly faster and saves extra fds - Implement an fd-based tc BPF attach API (TCX) and BPF link support on top of it - Add SO_REUSEPORT support for TC bpf_sk_assign - Support new instructions from cpu v4 to simplify the generated code and feature completeness, for x86, arm64, riscv64 - Support defragmenting IPv(4|6) packets in BPF - Teach verifier actual bounds of bpf_get_smp_processor_id() and fix perf+libbpf issue related to custom section handling - Introduce bpf map element count and enable it for all program types - Add a BPF hook in sys_socket() to change the protocol ID from IPPROTO_TCP to IPPROTO_MPTCP to cover migration for legacy - Introduce bpf_me_mcache_free_rcu() and fix OOM under stress - Add uprobe support for the bpf_get_func_ip helper - Check skb ownership against full socket - Support for up to 12 arguments in BPF trampoline - Extend link_info for kprobe_multi and perf_event links Netfilter: - Speed-up process exit by aborting ruleset validation if a fatal signal is pending - Allow NLA_POLICY_MASK to be used with BE16/BE32 types Driver API: - Page pool optimizations, to improve data locality and cache usage - Introduce ndo_hwtstamp_get() and ndo_hwtstamp_set() to avoid the need for raw ioctl() handling in drivers - Simplify genetlink dump operations (doit/dumpit) providing them the common information already populated in struct genl_info - Extend and use the yaml devlink specs to [re]generate the split ops - Introduce devlink selective dumps, to allow SF filtering SF based on handle and other attributes - Add yaml netlink spec for netlink-raw families, allow route, link and address related queries via the ynl tool - Remove phylink legacy mode support - Support offload LED blinking to phy - Add devlink port function attributes for IPsec New hardware / drivers: - Ethernet: - Broadcom ASP 2.0 (72165) ethernet controller - MediaTek MT7988 SoC - Texas Instruments AM654 SoC - Texas Instruments IEP driver - Atheros qca8081 phy - Marvell 88Q2110 phy - NXP TJA1120 phy - WiFi: - MediaTek mt7981 support - Can: - Kvaser SmartFusion2 PCI Express devices - Allwinner T113 controllers - Texas Instruments tcan4552/4553 chips - Bluetooth: - Intel Gale Peak - Qualcomm WCN3988 and WCN7850 - NXP AW693 and IW624 - Mediatek MT2925 Drivers: - Ethernet NICs: - nVidia/Mellanox: - mlx5: - support UDP encapsulation in packet offload mode - IPsec packet offload support in eswitch mode - improve aRFS observability by adding new set of counters - extends MACsec offload support to cover RoCE traffic - dynamic completion EQs - mlx4: - convert to use auxiliary bus instead of custom interface logic - Intel - ice: - implement switchdev bridge offload, even for LAG interfaces - implement SRIOV support for LAG interfaces - igc: - add support for multiple in-flight TX timestamps - Broadcom: - bnxt: - use the unified RX page pool buffers for XDP and non-XDP - use the NAPI skb allocation cache - OcteonTX2: - support Round Robin scheduling HTB offload - TC flower offload support for SPI field - Freescale: - add XDP_TX feature support - AMD: - ionic: add support for PCI FLR event - sfc: - basic conntrack offload - introduce eth, ipv4 and ipv6 pedit offloads - ST Microelectronics: - stmmac: maximze PTP timestamping resolution - Virtual NICs: - Microsoft vNIC: - batch ringing RX queue doorbell on receiving packets - add page pool for RX buffers - Virtio vNIC: - add per queue interrupt coalescing support - Google vNIC: - add queue-page-list mode support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add port range matching tc-flower offload - permit enslavement to netdevices with uppers - Ethernet embedded switches: - Marvell (mv88e6xxx): - convert to phylink_pcs - Renesas: - r8A779fx: add speed change support - rzn1: enables vlan support - Ethernet PHYs: - convert mv88e6xxx to phylink_pcs - WiFi: - Qualcomm Wi-Fi 7 (ath12k): - extremely High Throughput (EHT) PHY support - RealTek (rtl8xxxu): - enable AP mode for: RTL8192FU, RTL8710BU (RTL8188GU), RTL8192EU and RTL8723BU - RealTek (rtw89): - Introduce Time Averaged SAR (TAS) support - Connector: - support for event filtering" * tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1806 commits) net: ethernet: mtk_wed: minor change in wed_{tx,rx}info_show net: ethernet: mtk_wed: add some more info in wed_txinfo_show handler net: stmmac: clarify difference between "interface" and "phy_interface" r8152: add vendor/device ID pair for D-Link DUB-E250 devlink: move devlink_notify_register/unregister() to dev.c devlink: move small_ops definition into netlink.c devlink: move tracepoint definitions into core.c devlink: push linecard related code into separate file devlink: push rate related code into separate file devlink: push trap related code into separate file devlink: use tracepoint_enabled() helper devlink: push region related code into separate file devlink: push param related code into separate file devlink: push resource related code into separate file devlink: push dpipe related code into separate file devlink: move and rename devlink_dpipe_send_and_alloc_skb() helper devlink: push shared buffer related code into separate file devlink: push port related code into separate file devlink: push object register/unregister notifications into separate helpers inet: fix IP_TRANSPARENT error handling ...
2023-08-29Merge tag 'v6.6-p1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto updates from Herbert Xu: "API: - Move crypto engine callback from tfm ctx into algorithm object - Fix atomic sleep bug in crypto_destroy_instance - Move lib/mpi into lib/crypto Algorithms: - Add chacha20 and poly1305 implementation for powerpc p10 Drivers: - Add AES skcipher and aead support to starfive - Add Dynamic Boost Control support to ccp - Add support for STM32P13 platform to stm32" * tag 'v6.6-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (149 commits) Revert "dt-bindings: crypto: qcom,prng: Add SM8450" crypto: chelsio - Remove unused declarations X.509: if signature is unsupported skip validation crypto: qat - fix crypto capability detection for 4xxx crypto: drivers - Explicitly include correct DT includes crypto: engine - Remove crypto_engine_ctx crypto: zynqmp - Use new crypto_engine_op interface crypto: virtio - Use new crypto_engine_op interface crypto: stm32 - Use new crypto_engine_op interface crypto: jh7110 - Use new crypto_engine_op interface crypto: rk3288 - Use new crypto_engine_op interface crypto: omap - Use new crypto_engine_op interface crypto: keembay - Use new crypto_engine_op interface crypto: sl3516 - Use new crypto_engine_op interface crypto: caam - Use new crypto_engine_op interface crypto: aspeed - Remove non-standard sha512 algorithms crypto: aspeed - Use new crypto_engine_op interface crypto: amlogic - Use new crypto_engine_op interface crypto: sun8i-ss - Use new crypto_engine_op interface crypto: sun8i-ce - Use new crypto_engine_op interface ...
2023-08-29perf jevents: Use "default_core" for events with no UnitIan Rogers
The JSON Unit field encodes the name of the PMU to match the events to. When no name is given it has meant the "cpu" core PMU except for tests. On ARM, Intel hybrid and s390 the core PMU is named differently which means that using "cpu" for this case causes the events not to get matched to the PMU. Introduce a new "default_core" string for this case and in the pmu__name_match force all core PMUs to match this name. Fixes: 2e255b4f9f41f137 ("perf jevents: Group events by PMU") Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org> Reported-by: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20230826062203.1058041-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-29perf test stat_bpf_counters_cgrp: Enhance perf stat cgroup BPF counter testNamhyung Kim
It has system-wide test and cpu-list test but the cpu-list test fails sometimes. It runs sleep command on CPU1 and measure both user.slice and system.slice cgroups by default (on systemd-based systems). But if the system was idle enough, sometime the system.slice gets no count and it makes the test failing. Maybe that's because it only looks at the CPU1, let's add CPU0 to increase the chance it finds some tasks. Fixes: 7901086014bbaa3a ("perf test: Add a new test for perf stat cgroup BPF counter") Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: bpf@vger.kernel.org Link: https://lore.kernel.org/r/20230825164152.165610-3-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-29perf test shell stat_bpf_counters: Fix test on IntelNamhyung Kim
As of now, bpf counters (bperf) don't support event groups. But the default perf stat includes topdown metrics if supported (on recent Intel machines) which require groups. That makes perf stat exiting. $ sudo perf stat --bpf-counter true bpf managed perf events do not yet support groups. Actually the test explicitly uses cycles event only, but it missed to pass the option when it checks the availability of the command. Fixes: 2c0cb9f56020d2ea ("perf test: Add a shell test for 'perf stat --bpf-counters' new option") Reviewed-by: Song Liu <song@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: bpf@vger.kernel.org Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230825164152.165610-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-29perf test shell record_bpf_filter: Skip 6.2 kernelNamhyung Kim
The BPF sample filtering requires two kernel changes below: * bpf_cast_to_kernel_ctx() kfunc (added in v6.2) * setting perf_sample_data->sample_flags (finished in v6.3) The perf tools can check bpf_cast_to_kernel_ctx() easily so it can refuse BPF filters on those old kernels (v6.1 and earlier). But checking sample_flags appears to be difficult so current code won't work on v6.2 kernel. That's unfortunate but I don't know what's the correct way to handle it. For now, let's skip v6.2 kernels explicitly (if failed) in the test. Fixes: 9575ecdd198a50e9 ("perf test: Add perf record sample filtering test") Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: bpf@vger.kernel.org Link: https://lore.kernel.org/r/20230825164152.165610-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-29libperf: Get rid of attr.id fieldNamhyung Kim
Now there's no in-tree user of the field. To remove the possible bug later, let's get rid of the 'id' field and add a comment for that. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230825152552.112913-4-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-29perf tools: Convert to perf_record_header_attr_id()Namhyung Kim
Instead of accessing the attr.id directly, use the perf_record_header_attr_id() helper to handle old versions. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230825152552.112913-3-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-29libperf: Add perf_record_header_attr_id()Namhyung Kim
The HEADER_ATTR record has an event attr followed by the id array. But perf data from a different version could have different size of attr. So it cannot just use event->attr.id to access the array. Let's add the perf_record_header_attr_id() macro to calculate the start of the array. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230825152552.112913-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-29perf tools: Handle old data in PERF_RECORD_ATTRNamhyung Kim
The PERF_RECORD_ATTR is used for a pipe mode to describe an event with attribute and IDs. The ID table comes after the attr and it calculate size of the table using the total record size and the attr size. n_ids = (total_record_size - end_of_the_attr_field) / sizeof(u64) This is fine for most use cases, but sometimes it saves the pipe output in a file and then process it later. And it becomes a problem if there is a change in attr size between the record and report. $ perf record -o- > perf-pipe.data # old version $ perf report -i- < perf-pipe.data # new version For example, if the attr size is 128 and it has 4 IDs, then it would save them in 168 byte like below: 8 byte: perf event header { .type = PERF_RECORD_ATTR, .size = 168 }, 128 byte: perf event attr { .size = 128, ... }, 32 byte: event IDs [] = { 1234, 1235, 1236, 1237 }, But when report later, it thinks the attr size is 136 then it only read the last 3 entries as ID. 8 byte: perf event header { .type = PERF_RECORD_ATTR, .size = 168 }, 136 byte: perf event attr { .size = 136, ... }, 24 byte: event IDs [] = { 1235, 1236, 1237 }, // 1234 is missing So it should use the recorded version of the attr. The attr has the size field already then it should honor the size when reading data. Fixes: 2c46dbb517a10b18 ("perf: Convert perf header attrs into attr events") Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tom Zanussi <zanussi@kernel.org> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230825152552.112913-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-29perf pmus: Skip duplicate PMUs and don't print list suffix by defaultIan Rogers
Add a PMUs scan that ignores duplicates. When there are multiple PMUs that differ only by suffix, by default just list the first one and skip all others. The scan routine checks that the PMU names match but doesn't enforce that the numbers are consecutive as for some PMUs there are gaps. If "-v" is passed to "perf list" then list all PMUs. With the previous change duplicate PMUs are no longer printed but the suffix of the first is printed. When duplicate PMUs are being skipped avoid printing the suffix. Before: $ perf list ... uncore_imc_free_running_0/data_read/ [Kernel PMU event] uncore_imc_free_running_0/data_total/ [Kernel PMU event] uncore_imc_free_running_0/data_write/ [Kernel PMU event] uncore_imc_free_running_1/data_read/ [Kernel PMU event] uncore_imc_free_running_1/data_total/ [Kernel PMU event] uncore_imc_free_running_1/data_write/ [Kernel PMU event] After: $ perf list ... uncore_imc_free_running/data_read/ [Kernel PMU event] uncore_imc_free_running/data_total/ [Kernel PMU event] uncore_imc_free_running/data_write/ [Kernel PMU event] ... $ perf list -v uncore_imc_free_running_0/data_read/ [Kernel PMU event] uncore_imc_free_running_0/data_total/ [Kernel PMU event] uncore_imc_free_running_0/data_write/ [Kernel PMU event] uncore_imc_free_running_1/data_read/ [Kernel PMU event] uncore_imc_free_running_1/data_total/ [Kernel PMU event] uncore_imc_free_running_1/data_write/ [Kernel PMU event] ... Reviewed-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Link: https://lore.kernel.org/r/20230825135237.921058-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-29perf pmus: Sort pmus by name then suffixIan Rogers
Sort PMUs by name. If two PMUs have the same name but differ by suffix, sort the suffixes numerically. For example, "breakpoint" comes before "cpu", "uncore_imc_free_running_0" comes before "uncore_imc_free_running_1". Suffixes need to be treated specially as otherwise they will be ordered like 0, 1, 10, 11, .., 2, 20, 21, .., etc. Only PMUs starting 'uncore_' are considered to have a potential suffix. Sorting of PMUs is done so that later patches can skip duplicate uncore PMUs that differ only by there suffix. Committer notes: Used the more compact, intention revealing strstarts() function we got from the kernel sources: - if (strncmp(str, "uncore_", 7)) + if (!strstarts(str, "uncore_")) Also in pmus_cmp() the lhs_num and rhs_num variables may end up not being set for non "uncore_" prefixed PMUs in pmu_name_len_no_suffix(), or at least gcc 7.5 in some distros (opensuse 15.5, to be EOLed in Dec/2024) thins so, so initialize both to zero. Reviewed-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Link: https://lore.kernel.org/r/20230825135237.921058-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-29perf beauty mmap_flags: Use "test -f" instead of "[-f FILE]"Yanteng Si
"[" is part of the shell builtin test (and a synonym for it), not a link to the external command /usr/bin/test. Using the "test" is simpler because it avoids a lot of "[]". Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Acked-by: Huacai Chen <chenhuacai@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: loongarch@lists.linux.dev Cc: loongson-kernel@lists.loongnix.cn Link: https://lore.kernel.org/r/c50bc0a92dce0ff0fa6504c1a52fb53e2ac007bf.1692962043.git.siyanteng@loongson.cn Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-29perf beauty mmap_flags: Fix script for archs that use the generic mman.hYanteng Si
To address this error: grep: /root/linux-next/tools/arch/xxxxx/include/uapi/asm//mman.h: No such file or directory Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Acked-by: Huacai Chen <chenhuacai@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: loongarch@lists.linux.dev Cc: loongson-kernel@lists.loongnix.cn Link: https://lore.kernel.org/r/42e8e3565d6035302907426c1e65483b2a4007f5.1692962043.git.siyanteng@loongson.cn Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-29perf tools: Allow to use cpuinfo on LoongArchYanteng Si
Define these macros so that the CPU name can be displayed when running 'perf report' and 'perf timechart'. Committer notes: No need to have: if (strcasestr(buf, "Model Name")) { strlcpy(cpu_m, &buf[13], 255); break; } else if (strcasestr(buf, "model name")) { strlcpy(cpu_m, &buf[13], 255); break; } As the point of strcasestr() is to be case insensitive to both the haystack and the needle, so simplify the above to just: if (strcasestr(buf, "model name")) { strlcpy(cpu_m, &buf[13], 255); break; } Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Acked-by: Huacai Chen <chenhuacai@loongson.cn> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: loongarch@lists.linux.dev Cc: loongson-kernel@lists.loongnix.cn Link: https://lore.kernel.org/r/db968a186a10e4629fe10c26a1210f7126ad41ec.1692962043.git.siyanteng@loongson.cn Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-29Merge tag 'regmap-v6.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap updates from Mark Brown: "This is a much quieter release than the past few, there's one small API addition that I noticed a user for in ALSA and a bunch of cleanups: - Provide an interface for determining if a register is present in the cache and add a user of it in ALSA. - Full support for dynamic allocations, following the temporary bodges that were done as fixes in the previous release. - Remove the unused and questionably working 64 bit support" * tag 'regmap-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: Fix the type used for a bitmap pointer regmap: Remove dynamic allocation warnings for rbtree and maple regmap: rbtree: Use alloc_flags for memory allocations regmap: maple: Use alloc_flags for memory allocations regmap: Reject fast_io regmap configurations with RBTREE and MAPLE caches ALSA: hda: Use regcache_reg_cached() rather than open coding regmap: Provide test for regcache_reg_present() regmap: Let users check if a register is cached regmap: Provide user selectable option to enable regmap regmap: mmio: Remove unused 64-bit support code regmap: cache: Revert "Add 64-bit mode support" regmap: Revert "add 64-bit mode support" and Co.
2023-08-28Merge tag 'linux-kselftest-nolibc-6.6-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull nolibc updates from Shuah Khan: "Nolibc: - improved portability by removing build errors with -ENOSYS - added syscall6() on MIPS to support pselect6() and mmap() - added setvbuf(), rmdir(), pipe(), pipe2() - add support for ppc/ppc64 - environ is no longer optional - fixed frame pointer issues at -O0 - dropped sys_stat() in favor of sys_statx() - centralized _start_c() to remove lots of asm code - switched size_t to __SIZE_TYPE__ Selftests: - improved status reporting (success/warning/failure counts, path to log file) - various code cleanups (indent, unused variables, ...) - more consistent test numbering - enabled compiler warnings - dropped unreliable chmod_net test - improved reliability (create /dev/zero & /tmp, rely less on /proc) - new tests (brk/sbrk/mmap/munmap) - improved compatibility with musl - new run-nolibc-test target to build and run natively - new run-libc-test target to build and run against native libc - made the cmdline parser more reliable against boolean arguments - dropped dependency on memfd for vfprintf() test - nolibc-test is no longer stripped - added support for extending ARCH via XARCH Other: - add Thomas as co-maintainer" * tag 'linux-kselftest-nolibc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (103 commits) tools/nolibc: avoid undesired casts in the __sysret() macro tools/nolibc: keep brk(), sbrk(), mmap() away from __sysret() tools/nolibc: silence ppc64 compile warnings selftests/nolibc: libc-test: use HOSTCC instead of CC tools/nolibc: stackprotector.h: make __stack_chk_init static selftests/nolibc: allow report with existing test log selftests/nolibc: add test support for ppc64 selftests/nolibc: add test support for ppc64le selftests/nolibc: add test support for ppc selftests/nolibc: add XARCH and ARCH mapping support tools/nolibc: add support for powerpc64 tools/nolibc: add support for powerpc MAINTAINERS: nolibc: add myself as co-maintainer selftests/nolibc: enable compiler warnings selftests/nolibc: don't strip nolibc-test selftests/nolibc: prevent out of bounds access in expect_vfprintf selftests/nolibc: use correct return type for read() and write() selftests/nolibc: avoid sign-compare warnings selftests/nolibc: avoid unused parameter warnings selftests/nolibc: make functions static if possible ...
2023-08-28Merge tag 'linux-kselftest-kunit-6.6-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kunit updates from Shuah Khan: - add support for running Rust documentation tests as KUnit tests - make init, str, sync, types doctests compilable/testable - add support for attributes API which include speed, modules attributes, ability to filter and report attributes - add support for marking tests slow using attributes API - add attributes API documentation - fix a wild-memory-access bug in kunit_filter_suites() and a possible memory leak in kunit_filter_suites() - add support for counting number of test suites in a module, list action to kunit test modules, and test filtering on module tests * tag 'linux-kselftest-kunit-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (25 commits) kunit: fix struct kunit_attr header kunit: replace KUNIT_TRIGGER_STATIC_STUB maro with KUNIT_STATIC_STUB_REDIRECT kunit: Allow kunit test modules to use test filtering kunit: Make 'list' action available to kunit test modules kunit: Report the count of test suites in a module kunit: fix uninitialized variables bug in attributes filtering kunit: fix possible memory leak in kunit_filter_suites() kunit: fix wild-memory-access bug in kunit_filter_suites() kunit: Add documentation of KUnit test attributes kunit: add tests for filtering attributes kunit: time: Mark test as slow using test attributes kunit: memcpy: Mark tests as slow using test attributes kunit: tool: Add command line interface to filter and report attributes kunit: Add ability to filter attributes kunit: Add module attribute kunit: Add speed attribute kunit: Add test attributes API structure MAINTAINERS: add Rust KUnit files to the KUnit entry rust: support running Rust documentation tests as KUnit ones rust: types: make doctests compilable/testable ...
2023-08-28Merge tag 'linux-kselftest-next-6.6-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest updates from Shuah Khan: "A mix of fixes, enhancements, and new tests. Bulk of the changes enhance and fix rseq and resctrl tests. In addition, user_events, dmabuf-heaps and perf_events are added to default kselftest build and test coverage. A futex test fix, enhance prctl test coverage, and minor fixes are included in this update" * tag 'linux-kselftest-next-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (32 commits) selftests: cachestat: use proper syscall number macro selftests: cachestat: properly link in librt selftests/futex: Order calls to futex_lock_pi selftests: Hook more tests into the build infrastructure selftests/user_events: Reenable build selftests/filesystems: Add six consecutive 'x' characters to mktemp selftests/rseq: Use rseq_unqual_scalar_typeof in macros selftests/rseq: Fix arm64 buggy load-acquire/store-release macros selftests/rseq: Implement rseq_unqual_scalar_typeof selftests/rseq: Fix CID_ID typo in Makefile selftests:prctl: add set-process-name to .gitignore selftests:prctl: Fix make clean override warning selftests/resctrl: Remove test type checks from cat_val() selftests/resctrl: Pass the real number of tests to show_cache_info() selftests/resctrl: Move CAT/CMT test global vars to function they are used in selftests/resctrl: Don't use variable argument list for ->setup() selftests/resctrl: Don't pass test name to fill_buf selftests/resctrl: Improve parameter consistency in fill_buf selftests/resctrl: Remove unnecessary startptr global from fill_buf selftests/resctrl: Remove "malloc_and_init_memory" param from run_fill_buf() ...
2023-08-28Merge tag 'pm-6.6-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "These rework cpuidle governors to call tick_nohz_get_sleep_length() less often and fix one of them, rework hibernation to avoid storing pages filled with zeros in hibernation images, switch over some cpufreq drivers to use void remove callbacks, fix and clean up multiple cpufreq drivers, fix the devfreq core, update the cpupower utility and make other assorted improvements. Specifics: - Rework the menu and teo cpuidle governors to avoid calling tick_nohz_get_sleep_length(), which is likely to become quite expensive going forward, too often and improve making decisions regarding whether or not to stop the scheduler tick in the teo governor (Rafael Wysocki) - Improve the performance of cpufreq_stats_create_table() in some cases (Liao Chang) - Fix two issues in the amd-pstate-ut cpufreq driver (Swapnil Sapkal) - Use clamp() helper macro to improve the code readability in cpufreq_verify_within_limits() (Liao Chang) - Set stale CPU frequency to minimum in intel_pstate (Doug Smythies) - Migrate cpufreq drivers for various platforms to use void remove callback (Yangtao Li) - Add online/offline/exit hooks for Tegra driver (Sumit Gupta) - Explicitly include correct DT includes in cpufreq (Rob Herring) - Frequency domain updates for qcom-hw driver (Neil Armstrong) - Modify AMD pstate driver return the highest_perf value (Meng Li) - Generic cleanups for cppc, mediatek and powernow driver (Liao Chang, Konrad Dybcio) - Add more platforms to cpufreq-arm driver's blocklist (AngeloGioacchino Del Regno and Konrad Dybcio) - brcmstb-avs-cpufreq: Fix -Warray-bounds bug (Gustavo A. R. Silva) - Add device PM helpers to allow a device to remain powered-on during system-wide transitions (Ulf Hansson) - Rework hibernation memory snapshotting to avoid storing pages filled with zeros in hibernation image files (Brian Geffon) - Add check to make sure that CPU latency QoS constraints do not use negative values (Clive Lin) - Optimize rp->domains memory allocation in the Intel RAPL power capping driver (xiongxin) - Remove recursion while parsing zones in the arm_scmi power capping driver (Cristian Marussi) - Fix memory leak in devfreq_dev_release() (Boris Brezillon) - Rewrite devfreq_monitor_start() kerneldoc comment (Manivannan Sadhasivam) - Explicitly include correct DT includes in devfreq (Rob Herring) - Remove unsued pm_runtime_update_max_time_suspended() extern declaration (YueHaibing) - Add turbo-boost support to cpupower (Wyes Karny) - Add support for amd_pstate mode change to cpupower (Wyes Karny) - Fix 'cpupower idle_set' command to accept only numeric values of arguments (Likhitha Korrapati) - Clean up OPP code and add new frequency related APIs to it (Viresh Kumar, Manivannan Sadhasivam) - Convert ti cpufreq/opp bindings to json schema (Nishanth Menon)" * tag 'pm-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (74 commits) cpufreq: tegra194: remove opp table in exit hook cpufreq: powernow-k8: Use related_cpus instead of cpus in driver.exit() cpufreq: tegra194: add online/offline hooks cpuidle: teo: Avoid unnecessary variable assignments cpufreq: qcom-cpufreq-hw: add support for 4 freq domains dt-bindings: cpufreq: qcom-hw: add a 4th frequency domain cpufreq: amd-pstate-ut: Fix kernel panic when loading the driver cpufreq: amd-pstate-ut: Remove module parameter access cpufreq: Use clamp() helper macro to improve the code readability PM: sleep: Add helpers to allow a device to remain powered-on PM: QoS: Add check to make sure CPU latency is non-negative PM: runtime: Remove unsued extern declaration of pm_runtime_update_max_time_suspended() cpufreq: intel_pstate: set stale CPU frequency to minimum cpufreq: stats: Improve the performance of cpufreq_stats_create_table() dt-bindings: cpufreq: Convert ti-cpufreq to json schema dt-bindings: opp: Convert ti-omap5-opp-supply to json schema OPP: Fix argument name in doc comment cpuidle: menu: Skip tick_nohz_get_sleep_length() call in some cases cpufreq: cppc: Set fie_disabled to FIE_DISABLED if fails to create kworker_fie cpufreq: cppc: cppc_cpufreq_get_rate() returns zero in all error cases. ...
2023-08-28Merge tag 'arm64-upstream' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Will Deacon: "I think we have a bit less than usual on the architecture side, but that's somewhat balanced out by a large crop of perf/PMU driver updates and extensions to our selftests. CPU features and system registers: - Advertise hinted conditional branch support (FEAT_HBC) to userspace - Avoid false positive "SANITY CHECK" warning when xCR registers differ outside of the length field Documentation: - Fix macro name typo in SME documentation Entry code: - Unmask exceptions earlier on the system call entry path Memory management: - Don't bother clearing PTE_RDONLY for dirty ptes in pte_wrprotect() and pte_modify() Perf and PMU drivers: - Initial support for Coresight TRBE devices on ACPI systems (the coresight driver changes will come later) - Fix hw_breakpoint single-stepping when called from bpf - Fixes for DDR PMU on i.MX8MP SoC - Add NUMA-awareness to Hisilicon PCIe PMU driver - Fix locking dependency issue in Arm DMC620 PMU driver - Workaround Hisilicon erratum 162001900 in the SMMUv3 PMU driver - Add support for Arm CMN-700 r3 parts to the CMN PMU driver - Add support for recent Arm Cortex CPU PMUs - Update Hisilicon PMU maintainers Selftests: - Add a bunch of new features to the hwcap test (JSCVT, PMULL, AES, SHA1, etc) - Fix SSVE test to leave streaming-mode after grabbing the signal context - Add new test for SVE vector-length changes with SME enabled Miscellaneous: - Allow compiler to warn on suspicious looking system register expressions - Work around SDEI firmware bug by aborting any running handlers on a kernel crash - Fix some harmless warnings when building with W=1 - Remove some unused function declarations - Other minor fixes and cleanup" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (62 commits) drivers/perf: hisi: Update HiSilicon PMU maintainers arm_pmu: acpi: Add a representative platform device for TRBE arm_pmu: acpi: Refactor arm_spe_acpi_register_device() kselftest/arm64: Fix hwcaps selftest build hw_breakpoint: fix single-stepping when using bpf_overflow_handler arm64/sysreg: refactor deprecated strncpy kselftest/arm64: add jscvt feature to hwcap test kselftest/arm64: add pmull feature to hwcap test kselftest/arm64: add AES feature check to hwcap test kselftest/arm64: add SHA1 and related features to hwcap test arm64: sysreg: Generate C compiler warnings on {read,write}_sysreg_s arguments kselftest/arm64: build BTI tests in output directory perf/imx_ddr: don't enable counter0 if none of 4 counters are used perf/imx_ddr: speed up overflow frequency of cycle drivers/perf: hisi: Schedule perf session according to locality kselftest/arm64: fix a memleak in zt_regs_run() perf/arm-dmc620: Fix dmc620_pmu_irqs_lock/cpu_hotplug_lock circular lock dependency perf/smmuv3: Add MODULE_ALIAS for module auto loading perf/smmuv3: Enable HiSilicon Erratum 162001900 quirk for HIP08/09 kselftest/arm64: Size sycall-abi buffers for the actual maximum VL ...