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2022-01-18Merge tag 'rpmsg-v5.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux Pull rpmsg updates from Bjorn Andersson: "This adds pr_fmt for the rpmsg_char driver, fixes error handling in rpmsg_dev_probe() and corrects the spelling of "Return:" in various places, in order to fix kerneldoc" * tag 'rpmsg-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux: rpmsg: core: Clean up resources on announce_create failure. rpmsg: Fix documentation return formatting rpmsg: char: Add pr_fmt() to prefix messages
2022-01-18vfs: fs_context: fix up param length parsing in legacy_parse_paramJamie Hill-Daniel
The "PAGE_SIZE - 2 - size" calculation in legacy_parse_param() is an unsigned type so a large value of "size" results in a high positive value instead of a negative value as expected. Fix this by getting rid of the subtraction. Signed-off-by: Jamie Hill-Daniel <jamie@hill-daniel.co.uk> Signed-off-by: William Liu <willsroot@protonmail.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com> Acked-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-18Merge tag 'pm-5.17-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management updates from Rafael Wysocki: "This is a continuation of the rework of device power management macros used for declaring device power management callbacks (Paul Cercueil)" * tag 'pm-5.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: iio: pressure: bmp280: Use new PM macros PM: runtime: Add EXPORT[_GPL]_RUNTIME_DEV_PM_OPS macros PM: runtime: Add DEFINE_RUNTIME_DEV_PM_OPS() macro PM: core: Add EXPORT[_GPL]_SIMPLE_DEV_PM_OPS macros PM: core: Remove static qualifier in DEFINE_SIMPLE_DEV_PM_OPS macro PM: core: Remove DEFINE_UNIVERSAL_DEV_PM_OPS() macro
2022-01-18Merge tag 'acpi-5.17-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "The most significant item here is the Platform Firmware Runtime Update and Telemetry (PFRUT) support designed to allow certain pieces of the platform firmware to be updated on the fly, among other things. Also important is the e820 handling change on x86 that should work around PCI BAR allocation issues on some systems shipping since 2019. The rest is just a handful of assorted fixes and cleanups on top of the ACPI material merged previously. Specifics: - Add support for the the Platform Firmware Runtime Update and Telemetry (PFRUT) interface based on ACPI to allow certain pieces of the platform firmware to be updated without restarting the system and to provide a mechanism for collecting platform firmware telemetry data (Chen Yu, Dan Carpenter, Yang Yingliang). - Ignore E820 reservations covering PCI host bridge windows on sufficiently recent x86 systems to avoid issues with allocating PCI BARs on systems where the E820 reservations cover the entire PCI host bridge memory window returned by the _CRS object in the system's ACPI tables (Hans de Goede). - Fix and clean up acpi_scan_init() (Rafael Wysocki). - Add more sanity checking to ACPI SPCR tables parsing (Mark Langsdorf). - Fix up ACPI APD (AMD Soc) driver initialization (Jiasheng Jiang). - Drop unnecessary "static" from the ACPI PCC address space handling driver added recently (kernel test robot)" * tag 'acpi-5.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: PCC: pcc_ctx can be static ACPI: scan: Rename label in acpi_scan_init() ACPI: scan: Simplify initialization of power and sleep buttons ACPI: scan: Change acpi_scan_init() return value type to void ACPI: SPCR: check if table->serial_port.access_width is too wide ACPI: APD: Check for NULL pointer after calling devm_ioremap() x86/PCI: Ignore E820 reservations for bridge windows on newer systems ACPI: pfr_telemetry: Fix info leak in pfrt_log_ioctl() ACPI: pfr_update: Fix return value check in pfru_write() ACPI: tools: Introduce utility for firmware updates/telemetry ACPI: Introduce Platform Firmware Runtime Telemetry driver ACPI: Introduce Platform Firmware Runtime Update device driver efi: Introduce EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER and corresponding structures
2022-01-18Merge tag 'slab-for-5.17-part2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab Pull more slab updates from Vlastimil Babka: "Finish the conversion to struct slab by removing slab-specific fields from struct page. The first slab update (see merge commit ca1a46d6f506) did most of the conversion, but there was also series in iommu tree removing the iommu's usage of struct page 'freelist' field, blocking the final struct page cleanup. Now that the iommu changes have been merged, we can finish the job" * tag 'slab-for-5.17-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: mm: Remove slab from struct page
2022-01-18Merge tag 'arc-5.17-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc Pull ARC fixes from Vineet Gupta: "Nothing too exciting for now" * tag 'arc-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: arc: use swap() to make code cleaner arc: perf: Move static structs to where they're really used ARC: perf: fix misleading comment about pmu vs counter stop arc: Replace lkml.org links with lore ARC: perf: Remove redundant initialization of variable idx ARC: thread_info.h: correct two typos in a comment
2022-01-18Merge tag 'perf-tools-for-v5.17-2022-01-16' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tool updates from Arnaldo Carvalho de Melo: "New features: - Add 'trace' subcommand for 'perf ftrace', setting the stage for more 'perf ftrace' subcommands. Not using a subcommand yields the previous behaviour of 'perf ftrace'. - Add 'latency' subcommand to 'perf ftrace', that can use the function graph tracer or a BPF optimized one, via the -b/--use-bpf option. E.g.: $ sudo perf ftrace latency -a -T mutex_lock sleep 1 # DURATION | COUNT | GRAPH | 0 - 1 us | 4596 | ######################## | 1 - 2 us | 1680 | ######### | 2 - 4 us | 1106 | ##### | 4 - 8 us | 546 | ## | 8 - 16 us | 562 | ### | 16 - 32 us | 1 | | 32 - 64 us | 0 | | 64 - 128 us | 0 | | 128 - 256 us | 0 | | 256 - 512 us | 0 | | 512 - 1024 us | 0 | | 1 - 2 ms | 0 | | 2 - 4 ms | 0 | | 4 - 8 ms | 0 | | 8 - 16 ms | 0 | | 16 - 32 ms | 0 | | 32 - 64 ms | 0 | | 64 - 128 ms | 0 | | 128 - 256 ms | 0 | | 256 - 512 ms | 0 | | 512 - 1024 ms | 0 | | 1 - ... s | 0 | | The original implementation of this command was in the bcc tool. - Support --cputype option for hybrid events in 'perf stat'. Improvements: - Call chain improvements for ARM64. - No need to do any affinity setup when profiling pids. - Reduce multiplexing with duration_time in 'perf stat' metrics. - Improve error message for uncore events, stating that some event groups are can only be used in system wide (-a) mode. - perf stat metric group leader fixes/improvements, including arch specific changes to better support Intel topdown events. - Probe non-deprecated sysfs path first, i.e. try the path /sys/devices/system/cpu/cpuN/topology/thread_siblings first, then the old /sys/devices/system/cpu/cpuN/topology/core_cpus. - Disable debuginfod by default in 'perf record', to avoid stalls on distros such as Fedora 35. - Use unbuffered output in 'perf bench' when pipe/tee'ing to a file. - Enable ignore_missing_thread in 'perf trace' Fixes: - Avoid TUI crash when navigating in the annotation of recursive functions. - Fix hex dump character output in 'perf script'. - Fix JSON indentation to 4 spaces standard in the ARM vendor event files. - Fix use after free in metric__new(). - Fix IS_ERR_OR_NULL() usage in the perf BPF loader. - Fix up cross-arch register support, i.e. when printing register names take into account the architecture where the perf.data file was collected. - Fix SMT fallback with large core counts. - Don't lower case MetricExpr when parsing JSON files so as not to lose info such as the ":G" event modifier in metrics. perf test: - Add basic stress test for sigtrap handling to 'perf test'. - Fix 'perf test' failures on s/390 - Enable system wide for metricgroups test in 'perf test´. - Use 3 digits for test numbering now we can have more tests. Arch specific: - Add events for Arm Neoverse N2 in the ARM JSON vendor event files - Support PERF_MEM_LVLNUM encodings in powerpc, that came from a single patch series, where I incorrectly merged the kernel bits, that were then reverted after coordination with Michael Ellerman and Stephen Rothwell. - Add ARM SPE total latency as PERF_SAMPLE_WEIGHT. - Update AMD documentation, with info on raw event encoding. - Add support for global and local variants of the "p_stage_cyc" sort key, applicable to perf.data files collected on powerpc. - Remove duplicate and incorrect aux size checks in the ARM CoreSight ETM code. Refactorings: - Add a perf_cpu abstraction to disambiguate CPUs and CPU map indexes, fixing problems along the way. - Document CPU map methods. UAPI sync: - Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy' - Sync UAPI files with the kernel sources: drm, msr-index, cpufeatures. Build system - Enable warnings through HOSTCFLAGS. - Drop requirement for libstdc++.so for libopencsd check libperf: - Make libperf adopt perf_counts_values__scale() from tools/perf/util/. - Add a stat multiplexing test to libperf" * tag 'perf-tools-for-v5.17-2022-01-16' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (115 commits) perf record: Disable debuginfod by default perf evlist: No need to do any affinity setup when profiling pids perf cpumap: Add is_dummy() method perf metric: Fix metric_leader perf cputopo: Fix CPU topology reading on s/390 perf metricgroup: Fix use after free in metric__new() libperf tests: Update a use of the new cpumap API perf arm: Fix off-by-one directory path tools arch x86: Sync the msr-index.h copy with the kernel sources tools headers cpufeatures: Sync with the kernel sources tools headers UAPI: Update tools's copy of drm.h header tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy' perf pmu-events: Don't lower case MetricExpr perf expr: Add debug logging for literals perf tools: Probe non-deprecated sysfs path 1st perf tools: Fix SMT fallback with large core counts perf cpumap: Give CPUs their own type perf stat: Correct first_shadow_cpu to return index perf script: Fix flipped index and cpu perf c2c: Use more intention revealing iterator ...
2022-01-18Merge tag 'for-linus-5.17-ofs-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux Pull orangefs fixes from Mike Marshall: "Two fixes: - Fix the size of a memory allocation in orangefs_bufmap_alloc() (Christophe JAILLET) - Use default_groups in kobj_type (Greg KH)" * tag 'for-linus-5.17-ofs-1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux: orangefs: Fix the size of a memory allocation in orangefs_bufmap_alloc() orangefs: use default_groups in kobj_type
2022-01-17docs: ftrace: fix ambiguous sentenceHuichun Feng
The sentence looks ambiguous, rephrase it by adding ", there". Signed-off-by: Huichun Feng <foxhoundsk.tw@gmail.com> Signed-off-by: Ching-Chun (Jim) Huang <jserv@ccns.ncku.edu.tw> Signed-off-by: Chun-Hung Tseng <henrybear327@gmail.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Link: https://lore.kernel.org/r/20220111052000.2675944-1-foxhoundsk.tw@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-17docs: staging/tee.rst: fix two typos found while readingWang Cheng
Signed-off-by: Wang Cheng <wanngchenng@gmail.com> Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20220115125236.34886-1-wanngchenng@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-17KVM: x86: Making the module parameter of vPMU more commonLike Xu
The new module parameter to control PMU virtualization should apply to Intel as well as AMD, for situations where userspace is not trusted. If the module parameter allows PMU virtualization, there could be a new KVM_CAP or guest CPUID bits whereby userspace can enable/disable PMU virtualization on a per-VM basis. If the module parameter does not allow PMU virtualization, there should be no userspace override, since we have no precedent for authorizing that kind of override. If it's false, other counter-based profiling features (such as LBR including the associated CPUID bits if any) will not be exposed. Change its name from "pmu" to "enable_pmu" as we have temporary variables with the same name in our code like "struct kvm_pmu *pmu". Fixes: b1d66dad65dc ("KVM: x86/svm: Add module param to control PMU virtualization") Suggested-by : Jim Mattson <jmattson@google.com> Signed-off-by: Like Xu <likexu@tencent.com> Message-Id: <20220111073823.21885-1-likexu@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-17KVM: selftests: Test KVM_SET_CPUID2 after KVM_RUNVitaly Kuznetsov
KVM forbids KVM_SET_CPUID2 after KVM_RUN was performed on a vCPU unless the supplied CPUID data is equal to what was previously set. Test this. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20220117150542.2176196-5-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-17KVM: selftests: Rename 'get_cpuid_test' to 'cpuid_test'Vitaly Kuznetsov
In preparation to reusing the existing 'get_cpuid_test' for testing "KVM_SET_CPUID{,2} after KVM_RUN" rename it to 'cpuid_test' to avoid the confusion. No functional change intended. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20220117150542.2176196-4-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-17KVM: x86: Partially allow KVM_SET_CPUID{,2} after KVM_RUNVitaly Kuznetsov
Commit feb627e8d6f6 ("KVM: x86: Forbid KVM_SET_CPUID{,2} after KVM_RUN") forbade changing CPUID altogether but unfortunately this is not fully compatible with existing VMMs. In particular, QEMU reuses vCPU fds for CPU hotplug after unplug and it calls KVM_SET_CPUID2. Instead of full ban, check whether the supplied CPUID data is equal to what was previously set. Reported-by: Igor Mammedov <imammedo@redhat.com> Fixes: feb627e8d6f6 ("KVM: x86: Forbid KVM_SET_CPUID{,2} after KVM_RUN") Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20220117150542.2176196-3-vkuznets@redhat.com> Cc: stable@vger.kernel.org [Do not call kvm_find_cpuid_entry repeatedly. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-17Merge branch 'acpi-pfrut'Rafael J. Wysocki
Merge support for the Platform Firmware Runtime Update and Telemetry interface based on ACPI. The interface provided here allows updating certain pieces of the platform firmware without restarting the system and collecting platform firmware telemetry data. This also includes a utility for accesing the new interface from user space. * acpi-pfrut: ACPI: pfr_telemetry: Fix info leak in pfrt_log_ioctl() ACPI: pfr_update: Fix return value check in pfru_write() ACPI: tools: Introduce utility for firmware updates/telemetry ACPI: Introduce Platform Firmware Runtime Telemetry driver ACPI: Introduce Platform Firmware Runtime Update device driver efi: Introduce EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER and corresponding structures
2022-01-17KVM: x86: Do runtime CPUID update before updating vcpu->arch.cpuid_entriesVitaly Kuznetsov
kvm_update_cpuid_runtime() mangles CPUID data coming from userspace VMM after updating 'vcpu->arch.cpuid_entries', this makes it impossible to compare an update with what was previously supplied. Introduce __kvm_update_cpuid_runtime() version which can be used to tweak the input before it goes to 'vcpu->arch.cpuid_entries' so the upcoming update check can compare tweaked data. No functional change intended. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20220117150542.2176196-2-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-17KVM: x86/pmu: Fix available_event_types check for REF_CPU_CYCLES eventLike Xu
According to CPUID 0x0A.EBX bit vector, the event [7] should be the unrealized event "Topdown Slots" instead of the *kernel* generalized common hardware event "REF_CPU_CYCLES", so we need to skip the cpuid unavaliblity check in the intel_pmc_perf_hw_id() for the last REF_CPU_CYCLES event and update the confusing comment. If the event is marked as unavailable in the Intel guest CPUID 0AH.EBX leaf, we need to avoid any perf_event creation, whether it's a gp or fixed counter. To distinguish whether it is a rejected event or an event that needs to be programmed with PERF_TYPE_RAW type, a new special returned value of "PERF_COUNT_HW_MAX + 1" is introduced. Fixes: 62079d8a43128 ("KVM: PMU: add proper support for fixed counter 2") Signed-off-by: Like Xu <likexu@tencent.com> Message-Id: <20220105051509.69437-1-likexu@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-17xfs: remove the XFS_IOC_{ALLOC,FREE}SP* definitionsDarrick J. Wong
Now that we've made these ioctls defunct, move them from xfs_fs.h to xfs_ioctl.c, which effectively removes them from the publicly supported ioctl interfaces for XFS. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com>
2022-01-17xfs: kill the XFS_IOC_{ALLOC,FREE}SP* ioctlsDarrick J. Wong
According to the glibc compat header for Irix 4, these ioctls originated in April 1991 as a (somewhat clunky) way to preallocate space at the end of a file on an EFS filesystem. XFS, which was released in Irix 5.3 in December 1993, picked up these ioctls to maintain compatibility and they were ported to Linux in the early 2000s. Recently it was pointed out to me they still lurk in the kernel, even though the Linux fallocate syscall supplanted the functionality a long time ago. fstests doesn't seem to include any real functional or stress tests for these ioctls, which means that the code quality is ... very questionable. Most notably, it was a stale disk block exposure vector for 21 years and nobody noticed or complained. As mature programmers say, "If you're not testing it, it's broken." Given all that, let's withdraw these ioctls from the XFS userspace API. Normally we'd set a long deprecation process, but I estimate that there aren't any real users, so let's trigger a warning in dmesg and return -ENOTTY. See: CVE-2021-4155 Augments: 983d8e60f508 ("xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate") Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2022-01-17xfs: remove the XFS_IOC_FSSETDM definitionsDarrick J. Wong
Remove the definitions for these ioctls, since the functionality (and, weirdly, the 32-bit compat ioctl definitions) were removed from the kernel in November 2019. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2022-01-17Merge branches 'acpi-x86', 'acpi-tables', 'acpi-soc' and 'acpi-pcc'Rafael J. Wysocki
Merge additional ACPI-related updates for 5.17-rc1: - Ignore E820 reservations covering PCI host bridge windows on sufficiently recent x86 systems to avoid issues with allocating PCI BARs on systems where the E820 reservations cover the entire PCI host bridge memory window returned by the _CRS object in the system's ACPI tables (Hans de Goede). - Add more sanity checking to ACPI SPCR tables parsing (Mark Langsdorf). - Fix up ACPI APD (AMD Soc) driver initialization (Jiasheng Jiang). - Drop unnecessary "static" from the ACPI PCC address space handling driver added recently (kernel test robot). * acpi-x86: x86/PCI: Ignore E820 reservations for bridge windows on newer systems * acpi-tables: ACPI: SPCR: check if table->serial_port.access_width is too wide * acpi-soc: ACPI: APD: Check for NULL pointer after calling devm_ioremap() * acpi-pcc: ACPI: PCC: pcc_ctx can be static
2022-01-17net: sfp: fix high power modules without diagnostic monitoringRussell King (Oracle)
Commit 7cfa9c92d0a3 ("net: sfp: avoid power switch on address-change modules") unintetionally changed the semantics for high power modules without the digital diagnostics monitoring. We repeatedly attempt to read the power status from the non-existing 0xa2 address in a futile hope this failure is temporary: [ 8.856051] sfp sfp-eth3: module NTT 0000000000000000 rev 0000 sn 0000000000000000 dc 160408 [ 8.865843] mvpp2 f4000000.ethernet eth3: switched to inband/1000base-x link mode [ 8.873469] sfp sfp-eth3: Failed to read EEPROM: -5 [ 8.983251] sfp sfp-eth3: Failed to read EEPROM: -5 [ 9.103250] sfp sfp-eth3: Failed to read EEPROM: -5 We previosuly assumed such modules were powered up in the correct mode, continuing without further configuration as long as the required power class was supported by the host. Restore this behaviour, while preserving the intent of subsequent patches to avoid the "Address Change Sequence not supported" warning if we are not going to be accessing the DDM address. Fixes: 7cfa9c92d0a3 ("net: sfp: avoid power switch on address-change modules") Reported-by: 照山周一郎 <teruyama@springboard-inc.jp> Tested-by: 照山周一郎 <teruyama@springboard-inc.jp> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-17block: cleanup q->srcuMing Lei
srcu structure has to be cleanup via cleanup_srcu_struct(), so fix it. Reported-by: syzbot+4f789823c1abc5accf13@syzkaller.appspotmail.com Fixes: 704b914f15fb ("blk-mq: move srcu from blk_mq_hw_ctx to request_queue") Signed-off-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20220111123401.520192-1-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-01-17block: Remove unnecessary variable assignmentGuoYong Zheng
The parameter "ret" should be zero when running to this line, no need to set to zero again, remove it. Signed-off-by: GuoYong Zheng <zhenggy@chinatelecom.cn> Link: https://lore.kernel.org/r/1642414957-6785-1-git-send-email-zhenggy@chinatelecom.cn Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-01-17brd: remove brd_devices_mutex mutexTetsuo Handa
If brd_alloc() from brd_probe() is called before brd_alloc() from brd_init() is called, module loading will fail with -EEXIST error. To close this race, call __register_blkdev() just before leaving brd_init(). Then, we can remove brd_devices_mutex mutex, for brd_device list will no longer be accessed concurrently. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Link: https://lore.kernel.org/r/6b074af7-c165-4fab-b7da-8270a4f6f6cd@i-love.sakura.ne.jp Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-01-17gpio: idt3243x: Fix IRQ check in idt_gpio_probeMiaoqian Lin
platform_get_irq() returns negative error number instead 0 on failure. And the doc of platform_get_irq() provides a usage example: int irq = platform_get_irq(pdev, 0); if (irq < 0) return irq; Fix the check of return value to catch errors correctly. Fixes: 4195926aedca ("gpio: Add support for IDT 79RC3243x GPIO controller") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-01-17gpio: mpc8xxx: Fix IRQ check in mpc8xxx_probeMiaoqian Lin
platform_get_irq() returns negative error number instead 0 on failure. And the doc of platform_get_irq() provides a usage example: int irq = platform_get_irq(pdev, 0); if (irq < 0) return irq; Fix the check of return value to catch errors correctly. Fixes: 76c47d1449fc ("gpio: mpc8xxx: Add ACPI support") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-01-17s390: add Sven Schnelle as reviewerHeiko Carstens
Sven Schnelle will help reviewing s390 architecture code. Acked-by: Sven Schnelle <svens@linux.ibm.com> Acked-by: Alexander Gordeev <agordeev@linux.ibm.com> Acked-by: Vasily Gorbik <gor@linux.ibm.com> Acked-by: Christian Borntraeger <borntraeger@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2022-01-17s390/uaccess: introduce bit field for OAC specifierNico Boehr
Previously, we've used magic values to specify the OAC (operand-access control) for mvcos. Instead we introduce a bit field for it. When using a bit field, we cannot use an immediate value with K constraint anymore, since GCC older than 10 doesn't recognize the bit field union as a compile time constant. To make things work with older compilers, load the OAC value through a register. Bloat-o-meter reports a slight increase in kernel size with this change: Total: Before=15692135, After=15693015, chg +0.01% Signed-off-by: Nico Boehr <nrb@linux.ibm.com> Co-developed-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com> Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com> Link: https://lore.kernel.org/r/20220111100003.743116-1-scgl@linux.ibm.com Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2022-01-17s390/cpumf: Support for CPU Measurement Sampling Facility LS bitThomas Richter
Adds support for the CPU Measurement Sampling Facility limit sampling bit in the sampling device driver. Limited samples have no valueable information are not collected. Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2022-01-17s390/cpumf: Support for CPU Measurement Facility CSVN 7Thomas Richter
Adds support for the CPU Measurement Counter Facility second version number 7. Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2022-01-17Merge branch 'skb-leak-fixes'David S. Miller
Gal Pressman says: ==================== net: Couple of skb memory leak fixes As discussed in: https://lore.kernel.org/netdev/20220102081253.9123-1-gal@nvidia.com/ These are the two followup suggestions from Eric and Jakub. Patch #1 adds a sk_defer_free_flush() call to the kTLS splice_read handler. Patch #2 verifies the defer list is empty on socket destroy, and calls a defer free flush as well. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-17net: Flush deferred skb free on socket destroyGal Pressman
The cited Fixes patch moved to a deferred skb approach where the skbs are not freed immediately under the socket lock. Add a WARN_ON_ONCE() to verify the deferred list is empty on socket destroy, and empty it to prevent potential memory leaks. Fixes: f35f821935d8 ("tcp: defer skb freeing after socket lock is released") Signed-off-by: Gal Pressman <gal@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-17net/tls: Fix another skb memory leak when running kTLS trafficGal Pressman
This patch is a followup to commit ffef737fd037 ("net/tls: Fix skb memory leak when running kTLS traffic") Which was missing another sk_defer_free_flush() call in tls_sw_splice_read(). Fixes: f35f821935d8 ("tcp: defer skb freeing after socket lock is released") Signed-off-by: Gal Pressman <gal@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-17net: ocelot: Fix the call to switchdev_bridge_port_offloadHoratiu Vultur
In the blamed commit, the call to the function switchdev_bridge_port_offload was passing the wrong argument for atomic_nb. It was ocelot_netdevice_nb instead of ocelot_swtchdev_nb. This patch fixes this issue. Fixes: 4e51bf44a03af6 ("net: bridge: move the switchdev object replay helpers to "push" mode") Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-17drm/i915/display/adlp: Implement new step in the TC voltage swing prog sequenceJosé Roberto de Souza
TC voltage swing programming sequence was updated with a new step. BSpec: 54956 Cc: stable@vger.kernel.org Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Clint Taylor <clinton.a.taylor@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220113174826.50272-1-jose.souza@intel.com (cherry picked from commit 5ff59dddacd4738edcbd01847d9df7682348cf86) Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
2022-01-17drm/i915/display/ehl: Update voltage swing tableJosé Roberto de Souza
EHL table was recently updated with some minor fixes. BSpec: 21257 Cc: stable@vger.kernel.org Cc: Clint Taylor <clinton.a.taylor@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220113160437.49059-1-jose.souza@intel.com (cherry picked from commit 5ec7baef52c367cdbda964aa662f7135c25bab1f) Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
2022-01-17ALSA: core: Fix SSID quirk lookup for subvendor=0Takashi Iwai
Some weird devices set the codec SSID vendor ID 0, and snd_pci_quirk_lookup_id() loop aborts at the point although it should still try matching with the SSID device ID. This resulted in a missing quirk for some old Macs. Fix the loop termination condition to check both subvendor and subdevice. Fixes: 73355ddd8775 ("ALSA: hda: Code refactoring snd_hda_pick_fixup()") Cc: <stable@vger.kernel.org> BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215495 Link: https://lore.kernel.org/r/20220116082838.19382-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-01-17Merge tag '5.17-rc-part1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull cifs updates from Steve French: - multichannel patches mostly related to improving reconnect behavior - minor cleanup patches * tag '5.17-rc-part1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: fix FILE_BOTH_DIRECTORY_INFO definition cifs: move superblock magic defitions to magic.h cifs: Fix smb311_update_preauth_hash() kernel-doc comment cifs: avoid race during socket reconnect between send and recv cifs: maintain a state machine for tcp/smb/tcon sessions cifs: fix hang on cifs_get_next_mid() cifs: take cifs_tcp_ses_lock for status checks cifs: reconnect only the connection and not smb session where possible cifs: add WARN_ON for when chan_count goes below minimum cifs: adjust DebugData to use chans_need_reconnect for conn status cifs: use the chans_need_reconnect bitmap for reconnect status cifs: track individual channel status using chans_need_reconnect cifs: remove redundant assignment to pointer p
2022-01-17devtmpfs regression fix: reconfigure on each mountNeilBrown
Prior to Linux v5.4 devtmpfs used mount_single() which treats the given mount options as "remount" options, so it updates the configuration of the single super_block on each mount. Since that was changed, the mount options used for devtmpfs are ignored. This is a regression which affect systemd - which mounts devtmpfs with "-o mode=755,size=4m,nr_inodes=1m". This patch restores the "remount" effect by calling reconfigure_single() Fixes: d401727ea0d7 ("devtmpfs: don't mix {ramfs,shmem}_fill_super() with mount_single()") Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-17Merge tag 'fbdev-5.17-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev Pull fbdev maintainership update from Helge Deller: "The fbdev layer is orphaned, but seems to need some care. So I'd like to step up as new maintainer" * tag 'fbdev-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: MAINTAINERS: Add Helge as fbdev maintainer
2022-01-17Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "Updates to Goodix touchscreen driver (addition of pen support) and Silead touchscreen driver (also addition of pen support and parsing of embedded firmware to determine screen size), along with assorted fixes for other drivers" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: ti_am335x_tsc - fix a typo in a comment Input: zinitix - add compatible for bt532 Input: zinitix - handle proper supply names dt-bindings: input/ts/zinitix: Convert to YAML, fix and extend Input: axp20x-pek - revert "always register interrupt handlers" change Input: gpio-keys - avoid clearing twice some memory Input: byd - fix typo in a comment Input: ucb1400_ts - remove redundant variable penup Input: ti_am335x_tsc - lower the X and Y sampling time Input: ti_am335x_tsc - fix STEPCONFIG setup for Z2 Input: ti_am335x_tsc - set ADCREFM for X configuration Input: silead - add pen support Input: silead - add support for EFI-embedded fw using different min/max coordinates Input: goodix - 2 small fixes for pen support Input: goodix - improve gpiod_get() error logging Input: goodix - add pen support Input: ff-core - correct magnitude setting for rumble compatibility Input: palmas-pwrbutton - make a couple of arrays static const Input: wacom_i2c - clean up the query device fields Input: palmas-pwrbutton - use bitfield helpers
2022-01-17Merge tag 'i3c/for-5.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull i3c updates from Alexandre Belloni: "Mostly non urgent fixes and a few improvements (including runtime pm suport) to the Silvaco driver" * tag 'i3c/for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: i3c: master: dw: check return of dw_i3c_master_get_free_pos() i3c: master: mipi-i3c-hci: correct the config reference for endianness i3c: master: svc: enable the interrupt in the enable ibi function i3c: master: svc: add the missing module device table i3c: master: svc: add runtime pm support i3c: master: svc: set ODSTOP to let I2C device see the STOP signal i3c: master: svc: add support for slave to stop returning data i3c: master: svc: separate err, fifo and disable interrupt of reset function i3c: master: svc: fix atomic issue i3c: master: svc: move module reset behind clk enable i3c/master/mipi-i3c-hci: Fix a potentially infinite loop in 'hci_dat_v1_get_index()' i3c: fix incorrect address slot lookup on 64-bit i3c/master/mipi-i3c-hci: Prefer kcalloc over open coded arithmetic i3c/master/mipi-i3c-hci: Prefer struct_size over open coded arithmetic
2022-01-17Merge tag 'ntb-5.17' of git://github.com/jonmason/ntbLinus Torvalds
Pull NTB updates from Jon Mason: "New AMD PCI ID for NTB, and a number of bug fixes for ntb_hw_switchtec for Linux v5.17" * tag 'ntb-5.17' of git://github.com/jonmason/ntb: ntb_hw_switchtec: Fix a minor issue in config_req_id_table() ntb_hw_switchtec: Remove code for disabling ID protection ntb_hw_switchtec: Update the way of getting VEP instance ID ntb_hw_switchtec: AND with the part_map for a valid tpart_vec ntb_hw_switchtec: Fix bug with more than 32 partitions ntb_hw_switchtec: Fix pff ioread to read into mmio_part_cfg_all ntb_hw_switchtec: fix the spelling of "its" NTB/msi: Fix ntbm_msi_request_threaded_irq() kernel-doc comment ntb_hw_amd: Add NTB PCI ID for new gen CPU
2022-01-17Merge tag 'linux-watchdog-5.17-rc1' of ↵Linus Torvalds
git://www.linux-watchdog.org/linux-watchdog Pull watchdog updates from Wim Van Sebroeck: - New device support: - Watchdog Timer driver for RZ/G2L - Realtek Otto watchdog timer - Apple SoC watchdog driver - Fintek F81966 - Remove BCM63XX_WDT after support for this SoC was added to BCM7038_WDT - Improvements of the BCM7038_WDT and s3c2410_wdt code - Several other fixes and improvements * tag 'linux-watchdog-5.17-rc1' of git://www.linux-watchdog.org/linux-watchdog: (38 commits) watchdog: msc313e: Check if the WDT was running at boot watchdog: Add Apple SoC watchdog driver dt-bindings: watchdog: Add SM6350 and SM8250 compatible watchdog: s3c2410: Fix getting the optional clock watchdog: s3c2410: Use platform_get_irq() to get the interrupt dt-bindings: watchdog: atmel: Add missing 'interrupts' property watchdog: mtk_wdt: use platform_get_irq_optional watchdog: Add Watchdog Timer driver for RZ/G2L dt-bindings: watchdog: renesas,wdt: Add support for RZ/G2L watchdog: da9063: Add hard dependency on I2C watchdog: Add Realtek Otto watchdog timer dt-bindings: watchdog: Realtek Otto WDT binding watchdog: s3c2410: Add Exynos850 support watchdog: da9063: use atomic safe i2c transfer in reset handler watchdog: davinci: Use div64_ul instead of do_div watchdog: Remove BCM63XX_WDT MIPS: BCM63XX: Provide platform data to watchdog device watchdog: bcm7038_wdt: Add platform device id for bcm63xx-wdt watchdog: Allow building BCM7038_WDT for BCM63XX watchdog: bcm7038_wdt: Support platform data configuration ...
2022-01-17Merge branch 'for-5.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux Pull coccinelle updates from Julia Lawall: "Remove some semantic patches and remove a maintainer. Qing Wang <wangqing@vivo.com> reported that fen.cocci mostly finds false positives, so it is dropped. scripts/coccinelle/iterators/for_each_child.cocci also subsumes it, in a more correct way. Matthew Wilcox <willy@infradead.org> reported that bugon.cocci mostly gives false positives. It is an old script and was designed to be inaccurate to maximally cover problems, but most of what it is useful for has been done already. Gilles Muller passed away and is thus dropped from the maintainers list" * 'for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux: drop fen.cocci scripts/coccinelle: drop bugon.cocci MAINTAINERS: remove Gilles Muller
2022-01-17Merge branch 'modules-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux Pull module updates from Luis Chamberlain: "The biggest change here is in-kernel support for module decompression. This change is being made to help support LSMs like LoadPin as otherwise it loses link between the source of kernel module on the disk and binary blob that is being loaded into the kernel. kmod decompression is still done by userspace even with this is done, both because there are no measurable gains in not doing so and as it adds a secondary extra check for validating the module before loading it into the kernel. The rest of the changes are minor, the only other change worth mentionin there is Jessica Yu is now bowing out of maintenance of modules as she's taking a break from work. While there were other changes posted for modules, those have not yet received much review of testing so I'm not yet comfortable in merging any of those changes yet." * 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux: module: fix signature check failures when using in-kernel decompression kernel: Fix spelling mistake "compresser" -> "compressor" MAINTAINERS: add mailing lists for kmod and modules module.h: allow #define strings to work with MODULE_IMPORT_NS module: add in-kernel support for decompressing MAINTAINERS: Remove myself as modules maintainer module: Remove outdated comment
2022-01-17unicode: fix .gitignore for generated utfdata fileLinus Torvalds
Commit 2b3d04787012 ("unicode: Add utf8-data module") changed the generated utf8data file from 'utf8data.h' to 'utf8data.c', but didn't change the comments or the .gitignore to match. The comments should be updated too, but at least they don't cause any visible breakage. But the gitignore file needs changing to avoid git complaining about untracked files. Fixes: 2b3d04787012 ("unicode: Add utf8-data module") Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-17Merge branch 'signal-for-v5.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull signal/exit/ptrace updates from Eric Biederman: "This set of changes deletes some dead code, makes a lot of cleanups which hopefully make the code easier to follow, and fixes bugs found along the way. The end-game which I have not yet reached yet is for fatal signals that generate coredumps to be short-circuit deliverable from complete_signal, for force_siginfo_to_task not to require changing userspace configured signal delivery state, and for the ptrace stops to always happen in locations where we can guarantee on all architectures that the all of the registers are saved and available on the stack. Removal of profile_task_ext, profile_munmap, and profile_handoff_task are the big successes for dead code removal this round. A bunch of small bug fixes are included, as most of the issues reported were small enough that they would not affect bisection so I simply added the fixes and did not fold the fixes into the changes they were fixing. There was a bug that broke coredumps piped to systemd-coredump. I dropped the change that caused that bug and replaced it entirely with something much more restrained. Unfortunately that required some rebasing. Some successes after this set of changes: There are few enough calls to do_exit to audit in a reasonable amount of time. The lifetime of struct kthread now matches the lifetime of struct task, and the pointer to struct kthread is no longer stored in set_child_tid. The flag SIGNAL_GROUP_COREDUMP is removed. The field group_exit_task is removed. Issues where task->exit_code was examined with signal->group_exit_code should been examined were fixed. There are several loosely related changes included because I am cleaning up and if I don't include them they will probably get lost. The original postings of these changes can be found at: https://lkml.kernel.org/r/87a6ha4zsd.fsf@email.froward.int.ebiederm.org https://lkml.kernel.org/r/87bl1kunjj.fsf@email.froward.int.ebiederm.org https://lkml.kernel.org/r/87r19opkx1.fsf_-_@email.froward.int.ebiederm.org I trimmed back the last set of changes to only the obviously correct once. Simply because there was less time for review than I had hoped" * 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (44 commits) ptrace/m68k: Stop open coding ptrace_report_syscall ptrace: Remove unused regs argument from ptrace_report_syscall ptrace: Remove second setting of PT_SEIZED in ptrace_attach taskstats: Cleanup the use of task->exit_code exit: Use the correct exit_code in /proc/<pid>/stat exit: Fix the exit_code for wait_task_zombie exit: Coredumps reach do_group_exit exit: Remove profile_handoff_task exit: Remove profile_task_exit & profile_munmap signal: clean up kernel-doc comments signal: Remove the helper signal_group_exit signal: Rename group_exit_task group_exec_task coredump: Stop setting signal->group_exit_task signal: Remove SIGNAL_GROUP_COREDUMP signal: During coredumps set SIGNAL_GROUP_EXIT in zap_process signal: Make coredump handling explicit in complete_signal signal: Have prepare_signal detect coredumps using signal->core_state signal: Have the oom killer detect coredumps using signal->core_state exit: Move force_uaccess back into do_exit exit: Guarantee make_task_dead leaks the tsk when calling do_task_exit ...
2022-01-17Merge tag 'unicode-for-next-5.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/krisman/unicode Pull unicode updates from Gabriel Krisman Bertazi: "This includes patches from Christoph Hellwig to split the large data tables of the unicode subsystem into a loadable module, which allow users to not have them around if case-insensitive filesystems are not to be used. It also includes minor code fixes to unicode and its users, from the same author. All the patches here have been on linux-next releases for the past months" * tag 'unicode-for-next-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/krisman/unicode: unicode: only export internal symbols for the selftests unicode: Add utf8-data module unicode: cache the normalization tables in struct unicode_map unicode: move utf8cursor to utf8-selftest.c unicode: simplify utf8len unicode: remove the unused utf8{,n}age{min,max} functions unicode: pass a UNICODE_AGE() tripple to utf8_load unicode: mark the version field in struct unicode_map unsigned unicode: remove the charset field from struct unicode_map f2fs: simplify f2fs_sb_read_encoding ext4: simplify ext4_sb_read_encoding
generated by cgit (git 2.34.1) at 2025-09-13 22:08:59 +0000