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2022-08-12Merge tag 'riscv-for-linus-5.20-mw2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull more RISC-V updates from Palmer Dabbelt: "There's still a handful of new features in here, but there are a lot of fixes/cleanups as well: - Support for the Zicbom extension for explicit cache-block management, along with the necessary bits to make the non-standard cache management ops on the Allwinner D1 function - Support for the Zihintpause extension, which codifies a go-slow instruction used for cpu_relax() - Support for the Sstc extension for supervisor-mode timer/counter management - Many device tree fixes and cleanups, including a large set for the Canaan device trees - A handful of fixes and cleanups for the PMU driver" * tag 'riscv-for-linus-5.20-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (43 commits) dt-bindings: gpio: sifive: add gpio-line-names wireguard: selftests: set CONFIG_NONPORTABLE on riscv32 RISC-V: KVM: Support sstc extension RISC-V: Improve SBI definitions RISC-V: Move counter info definition to sbi header file RISC-V: Fix SBI PMU calls for RV32 RISC-V: Update user page mapping only once during start RISC-V: Fix counter restart during overflow for RV32 RISC-V: Prefer sstc extension if available RISC-V: Enable sstc extension parsing from DT RISC-V: Add SSTC extension CSR details riscv:uprobe fix SR_SPIE set/clear handling dt-bindings: riscv: fix SiFive l2-cache's cache-sets riscv: ensure cpu_ops_sbi is declared RISC-V: cpu_ops_spinwait.c should include head.h RISC-V: Declare cpu_ops_spinwait in <asm/cpu_ops.h> riscv: dts: starfive: correct number of external interrupts riscv: dts: sifive unmatched: Add PWM controlled LEDs riscv/purgatory: Omit use of bin2c riscv/purgatory: hard-code obj-y in Makefile ...
2022-08-12wireguard: selftests: set CONFIG_NONPORTABLE on riscv32Jason A. Donenfeld
When the CONFIG_PORTABLE/CONFIG_NONPORTABLE switches were added, various configs were updated, but the wireguard config was forgotten about. This leads to unbootable test kernels, causing CI fails. Add CONFIG_NONPORTABLE=y to the wireguard test suite configuration for riscv32. Fixes: 44c1e84a38a0 ("RISC-V: Add CONFIG_{NON,}PORTABLE") Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220809145757.83673-1-Jason@zx2c4.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-08-11Merge tag 'net-6.0-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from bluetooth, bpf, can and netfilter. A little larger than usual but it's all fixes, no late features. It's large partially because of timing, and partially because of follow ups to stuff that got merged a week or so before the merge window and wasn't as widely tested. Maybe the Bluetooth fixes are a little alarming so we'll address that, but the rest seems okay and not scary. Notably we're including a fix for the netfilter Kconfig [1], your WiFi warning [2] and a bluetooth fix which should unblock syzbot [3]. Current release - regressions: - Bluetooth: - don't try to cancel uninitialized works [3] - L2CAP: fix use-after-free caused by l2cap_chan_put - tls: rx: fix device offload after recent rework - devlink: fix UAF on failed reload and leftover locks in mlxsw Current release - new code bugs: - netfilter: - flowtable: fix incorrect Kconfig dependencies [1] - nf_tables: fix crash when nf_trace is enabled - bpf: - use proper target btf when exporting attach_btf_obj_id - arm64: fixes for bpf trampoline support - Bluetooth: - ISO: unlock on error path in iso_sock_setsockopt() - ISO: fix info leak in iso_sock_getsockopt() - ISO: fix iso_sock_getsockopt for BT_DEFER_SETUP - ISO: fix memory corruption on iso_pinfo.base - ISO: fix not using the correct QoS - hci_conn: fix updating ISO QoS PHY - phy: dp83867: fix get nvmem cell fail Previous releases - regressions: - wifi: cfg80211: fix validating BSS pointers in __cfg80211_connect_result [2] - atm: bring back zatm uAPI after ATM had been removed - properly fix old bug making bonding ARP monitor mode not being able to work with software devices with lockless Tx - tap: fix null-deref on skb->dev in dev_parse_header_protocol - revert "net: usb: ax88179_178a needs FLAG_SEND_ZLP" it helps some devices and breaks others - netfilter: - nf_tables: many fixes rejecting cross-object linking which may lead to UAFs - nf_tables: fix null deref due to zeroed list head - nf_tables: validate variable length element extension - bgmac: fix a BUG triggered by wrong bytes_compl - bcmgenet: indicate MAC is in charge of PHY PM Previous releases - always broken: - bpf: - fix bad pointer deref in bpf_sys_bpf() injected via test infra - disallow non-builtin bpf programs calling the prog_run command - don't reinit map value in prealloc_lru_pop - fix UAFs during the read of map iterator fd - fix invalidity check for values in sk local storage map - reject sleepable program for non-resched map iterator - mptcp: - move subflow cleanup in mptcp_destroy_common() - do not queue data on closed subflows - virtio_net: fix memory leak inside XDP_TX with mergeable - vsock: fix memory leak when multiple threads try to connect() - rework sk_user_data sharing to prevent psock leaks - geneve: fix TOS inheriting for ipv4 - tunnels & drivers: do not use RT_TOS for IPv6 flowlabel - phy: c45 baset1: do not skip aneg configuration if clock role is not specified - rose: avoid overflow when /proc displays timer information - x25: fix call timeouts in blocking connects - can: mcp251x: fix race condition on receive interrupt - can: j1939: - replace user-reachable WARN_ON_ONCE() with netdev_warn_once() - fix memory leak of skbs in j1939_session_destroy() Misc: - docs: bpf: clarify that many things are not uAPI - seg6: initialize induction variable to first valid array index (to silence clang vs objtool warning) - can: ems_usb: fix clang 14's -Wunaligned-access warning" * tag 'net-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (117 commits) net: atm: bring back zatm uAPI dpaa2-eth: trace the allocated address instead of page struct net: add missing kdoc for struct genl_multicast_group::flags nfp: fix use-after-free in area_cache_get() MAINTAINERS: use my korg address for mt7601u mlxsw: minimal: Fix deadlock in ports creation bonding: fix reference count leak in balance-alb mode net: usb: qmi_wwan: Add support for Cinterion MV32 bpf: Shut up kern_sys_bpf warning. net/tls: Use RCU API to access tls_ctx->netdev tls: rx: device: don't try to copy too much on detach tls: rx: device: bound the frag walk net_sched: cls_route: remove from list when handle is 0 selftests: forwarding: Fix failing tests with old libnet net: refactor bpf_sk_reuseport_detach() net: fix refcount bug in sk_psock_get (2) selftests/bpf: Ensure sleepable program is rejected by hash map iter selftests/bpf: Add write tests for sk local storage map iterator selftests/bpf: Add tests for reading a dangling map iter fd bpf: Only allow sleepable program for resched-able iterator ...
2022-08-11Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull more kvm updates from Paolo Bonzini: - Xen timer fixes - Documentation formatting fixes - Make rseq selftest compatible with glibc-2.35 - Fix handling of illegal LEA reg, reg - Cleanup creation of debugfs entries - Fix steal time cache handling bug - Fixes for MMIO caching - Optimize computation of number of LBRs - Fix uninitialized field in guest_maxphyaddr < host_maxphyaddr path * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (26 commits) KVM: x86/MMU: properly format KVM_CAP_VM_DISABLE_NX_HUGE_PAGES capability table Documentation: KVM: extend KVM_CAP_VM_DISABLE_NX_HUGE_PAGES heading underline KVM: VMX: Adjust number of LBR records for PERF_CAPABILITIES at refresh KVM: VMX: Use proper type-safe functions for vCPU => LBRs helpers KVM: x86: Refresh PMU after writes to MSR_IA32_PERF_CAPABILITIES KVM: selftests: Test all possible "invalid" PERF_CAPABILITIES.LBR_FMT vals KVM: selftests: Use getcpu() instead of sched_getcpu() in rseq_test KVM: selftests: Make rseq compatible with glibc-2.35 KVM: Actually create debugfs in kvm_create_vm() KVM: Pass the name of the VM fd to kvm_create_vm_debugfs() KVM: Get an fd before creating the VM KVM: Shove vcpu stats_id init into kvm_vcpu_init() KVM: Shove vm stats_id init into kvm_create_vm() KVM: x86/mmu: Add sanity check that MMIO SPTE mask doesn't overlap gen KVM: x86/mmu: rename trace function name for asynchronous page fault KVM: x86/xen: Stop Xen timer before changing IRQ KVM: x86/xen: Initialize Xen timer only once KVM: SVM: Disable SEV-ES support if MMIO caching is disable KVM: x86/mmu: Fully re-evaluate MMIO caching when SPTE masks change KVM: x86: Tag kvm_mmu_x86_module_init() with __init ...
2022-08-10selftests: forwarding: Fix failing tests with old libnetIdo Schimmel
The custom multipath hash tests use mausezahn in order to test how changes in various packet fields affect the packet distribution across the available nexthops. The tool uses the libnet library for various low-level packet construction and injection. The library started using the "SO_BINDTODEVICE" socket option for IPv6 sockets in version 1.1.6 and for IPv4 sockets in version 1.2. When the option is not set, packets are not routed according to the table associated with the VRF master device and tests fail. Fix this by prefixing the command with "ip vrf exec", which will cause the route lookup to occur in the VRF routing table. This makes the tests pass regardless of the libnet library version. Fixes: 511e8db54036 ("selftests: forwarding: Add test for custom multipath hash") Fixes: 185b0c190bb6 ("selftests: forwarding: Add test for custom multipath hash with IPv4 GRE") Fixes: b7715acba4d3 ("selftests: forwarding: Add test for custom multipath hash with IPv6 GRE") Reported-by: Ivan Vecera <ivecera@redhat.com> Tested-by: Ivan Vecera <ivecera@redhat.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Amit Cohen <amcohen@nvidia.com> Link: https://lore.kernel.org/r/20220809113320.751413-1-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-10Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfJakub Kicinski
Daniel Borkmann says: ==================== bpf 2022-08-10 We've added 23 non-merge commits during the last 7 day(s) which contain a total of 19 files changed, 424 insertions(+), 35 deletions(-). The main changes are: 1) Several fixes for BPF map iterator such as UAFs along with selftests, from Hou Tao. 2) Fix BPF syscall program's {copy,strncpy}_from_bpfptr() to not fault, from Jinghao Jia. 3) Reject BPF syscall programs calling BPF_PROG_RUN, from Alexei Starovoitov and YiFei Zhu. 4) Fix attach_btf_obj_id info to pick proper target BTF, from Stanislav Fomichev. 5) BPF design Q/A doc update to clarify what is not stable ABI, from Paul E. McKenney. 6) Fix BPF map's prealloc_lru_pop to not reinitialize, from Kumar Kartikeya Dwivedi. 7) Fix bpf_trampoline_put to avoid leaking ftrace hash, from Jiri Olsa. 8) Fix arm64 JIT to address sparse errors around BPF trampoline, from Xu Kuohai. 9) Fix arm64 JIT to use kvcalloc instead of kcalloc for internal program address offset buffer, from Aijun Sun. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: (23 commits) selftests/bpf: Ensure sleepable program is rejected by hash map iter selftests/bpf: Add write tests for sk local storage map iterator selftests/bpf: Add tests for reading a dangling map iter fd bpf: Only allow sleepable program for resched-able iterator bpf: Check the validity of max_rdwr_access for sock local storage map iterator bpf: Acquire map uref in .init_seq_private for sock{map,hash} iterator bpf: Acquire map uref in .init_seq_private for sock local storage map iterator bpf: Acquire map uref in .init_seq_private for hash map iterator bpf: Acquire map uref in .init_seq_private for array map iterator bpf: Disallow bpf programs call prog_run command. bpf, arm64: Fix bpf trampoline instruction endianness selftests/bpf: Add test for prealloc_lru_pop bug bpf: Don't reinit map value in prealloc_lru_pop bpf: Allow calling bpf_prog_test kfuncs in tracing programs bpf, arm64: Allocate program buffer using kvcalloc instead of kcalloc selftests/bpf: Excercise bpf_obj_get_info_by_fd for bpf2bpf bpf: Use proper target btf when exporting attach_btf_obj_id mptcp, btf: Add struct mptcp_sock definition when CONFIG_MPTCP is disabled bpf: Cleanup ftrace hash in bpf_trampoline_put BPF: Fix potential bad pointer dereference in bpf_sys_bpf() ... ==================== Link: https://lore.kernel.org/r/20220810190624.10748-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-10KVM: selftests: Test all possible "invalid" PERF_CAPABILITIES.LBR_FMT valsSean Christopherson
Test all possible input values to verify that KVM rejects all values except the exact host value. Due to the LBR format affecting the core functionality of LBRs, KVM can't emulate "other" formats, so even though there are a variety of legal values, KVM should reject anything but an exact host match. Suggested-by: Like Xu <like.xu.linux@gmail.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-10KVM: selftests: Use getcpu() instead of sched_getcpu() in rseq_testGavin Shan
sched_getcpu() is glibc dependent and it can simply return the CPU ID from the registered rseq information, as Florian Weimer pointed. In this case, it's pointless to compare the return value from sched_getcpu() and that fetched from the registered rseq information. Fix the issue by replacing sched_getcpu() with getcpu(), as Florian suggested. The comments are modified accordingly by replacing "sched_getcpu()" with "getcpu()". Reported-by: Yihuang Yu <yihyu@redhat.com> Suggested-by: Florian Weimer <fweimer@redhat.com> Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Gavin Shan <gshan@redhat.com> Message-Id: <20220810104114.6838-3-gshan@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-10KVM: selftests: Make rseq compatible with glibc-2.35Gavin Shan
The rseq information is registered by TLS, starting from glibc-2.35. In this case, the test always fails due to syscall(__NR_rseq). For example, on RHEL9.1 where upstream glibc-2.35 features are enabled on downstream glibc-2.34, the test fails like below. # ./rseq_test ==== Test Assertion Failure ==== rseq_test.c:60: !r pid=112043 tid=112043 errno=22 - Invalid argument 1 0x0000000000401973: main at rseq_test.c:226 2 0x0000ffff84b6c79b: ?? ??:0 3 0x0000ffff84b6c86b: ?? ??:0 4 0x0000000000401b6f: _start at ??:? rseq failed, errno = 22 (Invalid argument) # rpm -aq | grep glibc-2 glibc-2.34-39.el9.aarch64 Fix the issue by using "../rseq/rseq.c" to fetch the rseq information, registred by TLS if it exists. Otherwise, we're going to register our own rseq information as before. Reported-by: Yihuang Yu <yihyu@redhat.com> Suggested-by: Florian Weimer <fweimer@redhat.com> Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Gavin Shan <gshan@redhat.com> Message-Id: <20220810104114.6838-2-gshan@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-10selftests: kvm: fix compilationPaolo Bonzini
Commit 49de12ba06ef ("selftests: drop KSFT_KHDR_INSTALL make target") dropped from tools/testing/selftests/lib.mk the code related to KSFT_KHDR_INSTALL, but in doing so it also dropped the definition of the ARCH variable. The ARCH variable is used in several subdirectories, but kvm/ is the only one of these that was using KSFT_KHDR_INSTALL. As a result, kvm selftests cannot be built anymore: In file included from include/x86_64/vmx.h:12, from x86_64/vmx_pmu_caps_test.c:18: include/x86_64/processor.h:15:10: fatal error: asm/msr-index.h: No such file or directory 15 | #include <asm/msr-index.h> | ^~~~~~~~~~~~~~~~~ In file included from ../../../../tools/include/asm/atomic.h:6, from ../../../../tools/include/linux/atomic.h:5, from rseq_test.c:15: ../../../../tools/include/asm/../../arch/x86/include/asm/atomic.h:11:10: fatal error: asm/cmpxchg.h: No such file or directory 11 | #include <asm/cmpxchg.h> | ^~~~~~~~~~~~~~~ Fix it by including the definition that was present in lib.mk. Fixes: 49de12ba06ef ("selftests: drop KSFT_KHDR_INSTALL make target") Cc: Guillaume Tucker <guillaume.tucker@collabora.com> Cc: Anders Roxell <anders.roxell@linaro.org> Cc: Shuah Khan <skhan@linuxfoundation.org> Cc: linux-kselftest@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-10Merge tag 'cxl-for-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxlLinus Torvalds
Pull cxl updates from Dan Williams: "Compute Express Link (CXL) updates for 6.0: - Introduce a 'struct cxl_region' object with support for provisioning and assembling persistent memory regions. - Introduce alloc_free_mem_region() to accompany the existing request_free_mem_region() as a method to allocate physical memory capacity out of an existing resource. - Export insert_resource_expand_to_fit() for the CXL subsystem to late-publish CXL platform windows in iomem_resource. - Add a polled mode PCI DOE (Data Object Exchange) driver service and use it in cxl_pci to retrieve the CDAT (Coherent Device Attribute Table)" * tag 'cxl-for-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (74 commits) cxl/hdm: Fix skip allocations vs multiple pmem allocations cxl/region: Disallow region granularity != window granularity cxl/region: Fix x1 interleave to greater than x1 interleave routing cxl/region: Move HPA setup to cxl_region_attach() cxl/region: Fix decoder interleave programming Documentation: cxl: remove dangling kernel-doc reference cxl/region: describe targets and nr_targets members of cxl_region_params cxl/regions: add padding for cxl_rr_ep_add nested lists cxl/region: Fix IS_ERR() vs NULL check cxl/region: Fix region reference target accounting cxl/region: Fix region commit uninitialized variable warning cxl/region: Fix port setup uninitialized variable warnings cxl/region: Stop initializing interleave granularity cxl/hdm: Fix DPA reservation vs cxl_endpoint_decoder lifetime cxl/acpi: Minimize granularity for x1 interleaves cxl/region: Delete 'region' attribute from root decoders cxl/acpi: Autoload driver for 'cxl_acpi' test devices cxl/region: decrement ->nr_targets on error in cxl_region_attach() cxl/region: prevent underflow in ways_to_cxl() cxl/region: uninitialized variable in alloc_hpa() ...
2022-08-10selftests/bpf: Ensure sleepable program is rejected by hash map iterHou Tao
Add a test to ensure sleepable program is rejected by hash map iterator. Signed-off-by: Hou Tao <houtao1@huawei.com> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/r/20220810080538.1845898-10-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-08-10selftests/bpf: Add write tests for sk local storage map iteratorHou Tao
Add test to validate the overwrite of sock local storage map value in map iterator and another one to ensure out-of-bound value writing is rejected. Signed-off-by: Hou Tao <houtao1@huawei.com> Acked-by: Yonghong Song <yhs@fb.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/r/20220810080538.1845898-9-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-08-10selftests/bpf: Add tests for reading a dangling map iter fdHou Tao
After closing both related link fd and map fd, reading the map iterator fd to ensure it is OK to do so. Signed-off-by: Hou Tao <houtao1@huawei.com> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/r/20220810080538.1845898-8-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-08-09selftests/bpf: Add test for prealloc_lru_pop bugKumar Kartikeya Dwivedi
Add a regression test to check against invalid check_and_init_map_value call inside prealloc_lru_pop. The kptr should not be reset to NULL once we set it after deleting the map element. Hence, we trigger a program that updates the element causing its reuse, and checks whether the unref kptr is reset or not. If it is, prealloc_lru_pop does an incorrect check_and_init_map_value call and the test fails. Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20220809213033.24147-4-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-08-09Merge tag 'memblock-v5.20-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock Pull memblock updates from Mike Rapoport: - An optimization in memblock_add_range() to reduce array traversals - Improvements to the memblock test suite * tag 'memblock-v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: memblock test: Modify the obsolete description in README memblock tests: fix compilation errors memblock tests: change build options to run-time options memblock tests: remove completed TODO items memblock tests: set memblock_debug to enable memblock_dbg() messages memblock tests: add verbose output to memblock tests memblock tests: Makefile: add arguments to control verbosity memblock: avoid some repeat when add new range
2022-08-08selftests/bpf: Excercise bpf_obj_get_info_by_fd for bpf2bpfStanislav Fomichev
Apparently, no existing selftest covers it. Add a new one where we load cgroup/bind4 program and attach fentry to it. Calling bpf_obj_get_info_by_fd on the fentry program should return non-zero btf_id/btf_obj_id instead of crashing the kernel. Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20220804201140.1340684-2-sdf@google.com
2022-08-07Merge tag 'mm-nonmm-stable-2022-08-06-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc updates from Andrew Morton: "Updates to various subsystems which I help look after. lib, ocfs2, fatfs, autofs, squashfs, procfs, etc. A relatively small amount of material this time" * tag 'mm-nonmm-stable-2022-08-06-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (72 commits) scripts/gdb: ensure the absolute path is generated on initial source MAINTAINERS: kunit: add David Gow as a maintainer of KUnit mailmap: add linux.dev alias for Brendan Higgins mailmap: update Kirill's email profile: setup_profiling_timer() is moslty not implemented ocfs2: fix a typo in a comment ocfs2: use the bitmap API to simplify code ocfs2: remove some useless functions lib/mpi: fix typo 'the the' in comment proc: add some (hopefully) insightful comments bdi: remove enum wb_congested_state kernel/hung_task: fix address space of proc_dohung_task_timeout_secs lib/lzo/lzo1x_compress.c: replace ternary operator with min() and min_t() squashfs: support reading fragments in readahead call squashfs: implement readahead squashfs: always build "file direct" version of page actor Revert "squashfs: provide backing_dev_info in order to disable read-ahead" fs/ocfs2: Fix spelling typo in comment ia64: old_rr4 added under CONFIG_HUGETLB_PAGE proc: fix test for "vsyscall=xonly" boot option ...
2022-08-06Merge tag 's390-5.20-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Alexander Gordeev: - Rework copy_oldmem_page() callback to take an iov_iter. This includes a few prerequisite updates and fixes to the oldmem reading code. - Rework cpufeature implementation to allow for various CPU feature indications, which is not only limited to hardware capabilities, but also allows CPU facilities. - Use the cpufeature rework to autoload Ultravisor module when CPU facility 158 is available. - Add ELF note type for encrypted CPU state of a protected virtual CPU. The zgetdump tool from s390-tools package will decrypt the CPU state using a Customer Communication Key and overwrite respective notes to make the data accessible for crash and other debugging tools. - Use vzalloc() instead of vmalloc() + memset() in ChaCha20 crypto test. - Fix incorrect recovery of kretprobe modified return address in stacktrace. - Switch the NMI handler to use generic irqentry_nmi_enter() and irqentry_nmi_exit() helper functions. - Rework the cryptographic Adjunct Processors (AP) pass-through design to support dynamic changes to the AP matrix of a running guest as well as to implement more of the AP architecture. - Minor boot code cleanups. - Grammar and typo fixes to hmcdrv and tape drivers. * tag 's390-5.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (46 commits) Revert "s390/smp: enforce lowcore protection on CPU restart" Revert "s390/smp: rework absolute lowcore access" Revert "s390/smp,ptdump: add absolute lowcore markers" s390/unwind: fix fgraph return address recovery s390/nmi: use irqentry_nmi_enter()/irqentry_nmi_exit() s390: add ELF note type for encrypted CPU state of a PV VCPU s390/smp,ptdump: add absolute lowcore markers s390/smp: rework absolute lowcore access s390/setup: rearrange absolute lowcore initialization s390/boot: cleanup adjust_to_uv_max() function s390/smp: enforce lowcore protection on CPU restart s390/tape: fix comment typo s390/hmcdrv: fix Kconfig "its" grammar s390/docs: fix warnings for vfio_ap driver doc s390/docs: fix warnings for vfio_ap driver lock usage doc s390/crash: support multi-segment iterators s390/crash: use static swap buffer for copy_to_user_real() s390/crash: move copy_to_user_real() to crash_dump.c s390/zcore: fix race when reading from hardware system area s390/crash: fix incorrect number of bytes to copy to user space ...
2022-08-06Merge tag 'powerpc-6.0-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Add support for syscall stack randomization - Add support for atomic operations to the 32 & 64-bit BPF JIT - Full support for KASAN on 64-bit Book3E - Add a watchdog driver for the new PowerVM hypervisor watchdog - Add a number of new selftests for the Power10 PMU support - Add a driver for the PowerVM Platform KeyStore - Increase the NMI watchdog timeout during live partition migration, to avoid timeouts due to increased memory access latency - Add support for using the 'linux,pci-domain' device tree property for PCI domain assignment - Many other small features and fixes Thanks to Alexey Kardashevskiy, Andy Shevchenko, Arnd Bergmann, Athira Rajeev, Bagas Sanjaya, Christophe Leroy, Erhard Furtner, Fabiano Rosas, Greg Kroah-Hartman, Greg Kurz, Haowen Bai, Hari Bathini, Jason A. Donenfeld, Jason Wang, Jiang Jian, Joel Stanley, Juerg Haefliger, Kajol Jain, Kees Cook, Laurent Dufour, Madhavan Srinivasan, Masahiro Yamada, Maxime Bizon, Miaoqian Lin, Murilo Opsfelder Araújo, Nathan Lynch, Naveen N. Rao, Nayna Jain, Nicholas Piggin, Ning Qiang, Pali Rohár, Petr Mladek, Rashmica Gupta, Sachin Sant, Scott Cheloha, Segher Boessenkool, Stephen Rothwell, Uwe Kleine-König, Wolfram Sang, Xiu Jianfeng, and Zhouyi Zhou. * tag 'powerpc-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (191 commits) powerpc/64e: Fix kexec build error EDAC/ppc_4xx: Include required of_irq header directly powerpc/pci: Fix PHB numbering when using opal-phbid powerpc/64: Init jump labels before parse_early_param() selftests/powerpc: Avoid GCC 12 uninitialised variable warning powerpc/cell/axon_msi: Fix refcount leak in setup_msi_msg_address powerpc/xive: Fix refcount leak in xive_get_max_prio powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader powerpc/perf: Include caps feature for power10 DD1 version powerpc: add support for syscall stack randomization powerpc: Move system_call_exception() to syscall.c powerpc/powernv: rename remaining rng powernv_ functions to pnv_ powerpc/powernv/kvm: Use darn for H_RANDOM on Power9 powerpc/powernv: Avoid crashing if rng is NULL selftests/powerpc: Fix matrix multiply assist test powerpc/signal: Update comment for clarity powerpc: make facility_unavailable_exception 64s powerpc/platforms/83xx/suspend: Remove write-only global variable powerpc/platforms/83xx/suspend: Prevent unloading the driver powerpc/platforms/83xx/suspend: Reorder to get rid of a forward declaration ...
2022-08-05selftests: netfilter: add test case for nf trace infrastructureFlorian Westphal
Enable/disable tracing infrastructure while packets are in-flight. This triggers KASAN splat after e34b9ed96ce3 ("netfilter: nf_tables: avoid skb access on nf_stolen"). While at it, reduce script run time as well. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-05Merge tag 'mm-stable-2022-08-03' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: "Most of the MM queue. A few things are still pending. Liam's maple tree rework didn't make it. This has resulted in a few other minor patch series being held over for next time. Multi-gen LRU still isn't merged as we were waiting for mapletree to stabilize. The current plan is to merge MGLRU into -mm soon and to later reintroduce mapletree, with a view to hopefully getting both into 6.1-rc1. Summary: - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe Lin, Yang Shi, Anshuman Khandual and Mike Rapoport - Some kmemleak fixes from Patrick Wang and Waiman Long - DAMON updates from SeongJae Park - memcg debug/visibility work from Roman Gushchin - vmalloc speedup from Uladzislau Rezki - more folio conversion work from Matthew Wilcox - enhancements for coherent device memory mapping from Alex Sierra - addition of shared pages tracking and CoW support for fsdax, from Shiyang Ruan - hugetlb optimizations from Mike Kravetz - Mel Gorman has contributed some pagealloc changes to improve latency and realtime behaviour. - mprotect soft-dirty checking has been improved by Peter Xu - Many other singleton patches all over the place" [ XFS merge from hell as per Darrick Wong in https://lore.kernel.org/all/YshKnxb4VwXycPO8@magnolia/ ] * tag 'mm-stable-2022-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (282 commits) tools/testing/selftests/vm/hmm-tests.c: fix build mm: Kconfig: fix typo mm: memory-failure: convert to pr_fmt() mm: use is_zone_movable_page() helper hugetlbfs: fix inaccurate comment in hugetlbfs_statfs() hugetlbfs: cleanup some comments in inode.c hugetlbfs: remove unneeded header file hugetlbfs: remove unneeded hugetlbfs_ops forward declaration hugetlbfs: use helper macro SZ_1{K,M} mm: cleanup is_highmem() mm/hmm: add a test for cross device private faults selftests: add soft-dirty into run_vmtests.sh selftests: soft-dirty: add test for mprotect mm/mprotect: fix soft-dirty check in can_change_pte_writable() mm: memcontrol: fix potential oom_lock recursion deadlock mm/gup.c: fix formatting in check_and_migrate_movable_page() xfs: fail dax mount if reflink is enabled on a partition mm/memcontrol.c: remove the redundant updating of stats_flush_threshold userfaultfd: don't fail on unrecognized features hugetlb_cgroup: fix wrong hugetlb cgroup numa stat ...
2022-08-05Merge tag 'x86_sgx_for_v6.0-2022-08-03.1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 SGX updates from Dave Hansen: "A set of x86/sgx changes focused on implementing the "SGX2" features, plus a minor cleanup: - SGX2 ISA support which makes enclave memory management much more dynamic. For instance, enclaves can now change enclave page permissions on the fly. - Removal of an unused structure member" * tag 'x86_sgx_for_v6.0-2022-08-03.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits) x86/sgx: Drop 'page_index' from sgx_backing selftests/sgx: Page removal stress test selftests/sgx: Test reclaiming of untouched page selftests/sgx: Test invalid access to removed enclave page selftests/sgx: Test faulty enclave behavior selftests/sgx: Test complete changing of page type flow selftests/sgx: Introduce TCS initialization enclave operation selftests/sgx: Introduce dynamic entry point selftests/sgx: Test two different SGX2 EAUG flows selftests/sgx: Add test for TCS page permission changes selftests/sgx: Add test for EPCM permission changes Documentation/x86: Introduce enclave runtime management section x86/sgx: Free up EPC pages directly to support large page ranges x86/sgx: Support complete page removal x86/sgx: Support modifying SGX page type x86/sgx: Tighten accessible memory range after enclave initialization x86/sgx: Support adding of pages to an initialized enclave x86/sgx: Support restricting of enclave page permissions x86/sgx: Support VA page allocation without reclaiming x86/sgx: Export sgx_encl_page_alloc() ...
2022-08-05Merge tag 'trace-v6.0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: - Runtime verification infrastructure This is the biggest change here. It introduces the runtime verification that is necessary for running Linux on safety critical systems. It allows for deterministic automata models to be inserted into the kernel that will attach to tracepoints, where the information on these tracepoints will move the model from state to state. If a state is encountered that does not belong to the model, it will then activate a given reactor, that could just inform the user or even panic the kernel (for which safety critical systems will detect and can recover from). - Two monitor models are also added: Wakeup In Preemptive (WIP - not to be confused with "work in progress"), and Wakeup While Not Running (WWNR). - Added __vstring() helper to the TRACE_EVENT() macro to replace several vsnprintf() usages that were all doing it wrong. - eprobes now can have their event autogenerated when the event name is left off. - The rest is various cleanups and fixes. * tag 'trace-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (50 commits) rv: Unlock on error path in rv_unregister_reactor() tracing: Use alignof__(struct {type b;}) instead of offsetof() tracing/eprobe: Show syntax error logs in error_log file scripts/tracing: Fix typo 'the the' in comment tracepoints: It is CONFIG_TRACEPOINTS not CONFIG_TRACEPOINT tracing: Use free_trace_buffer() in allocate_trace_buffers() tracing: Use a struct alignof to determine trace event field alignment rv/reactor: Add the panic reactor rv/reactor: Add the printk reactor rv/monitor: Add the wwnr monitor rv/monitor: Add the wip monitor rv/monitor: Add the wip monitor skeleton created by dot2k Documentation/rv: Add deterministic automata instrumentation documentation Documentation/rv: Add deterministic automata monitor synthesis documentation tools/rv: Add dot2k Documentation/rv: Add deterministic automaton documentation tools/rv: Add dot2c Documentation/rv: Add a basic documentation rv/include: Add instrumentation helper functions rv/include: Add deterministic automata monitor definition via C macros ...
2022-08-05selftests: add few test cases for tap driverCezar Bulinaru
Few test cases related to the fix for 924a9bc362a5: "net: check if protocol extracted by virtio_net_hdr_set_proto is correct" Need test for the case when a non-standard packet (GSO without NEEDS_CSUM) sent to the tap device causes a BUG check in the tap driver. Signed-off-by: Cezar Bulinaru <cbulinaru@gmail.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-05selftests: mptcp: make sendfile selftest workFlorian Westphal
When the selftest got added, sendfile() on mptcp sockets returned -EOPNOTSUPP, so running 'mptcp_connect.sh -m sendfile' failed immediately. This is no longer the case, but the script fails anyway due to timeout. Let the receiver know once the sender has sent all data, just like with '-m mmap' mode. v2: need to respect cfg_wait too, as pm_userspace.sh relied on -m sendfile to keep the connection open (Mat Martineau) Fixes: 048d19d444be ("mptcp: add basic kselftest for mptcp") Reported-by: Xiumei Mu <xmu@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-04Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm updates from Paolo Bonzini: "Quite a large pull request due to a selftest API overhaul and some patches that had come in too late for 5.19. ARM: - Unwinder implementations for both nVHE modes (classic and protected), complete with an overflow stack - Rework of the sysreg access from userspace, with a complete rewrite of the vgic-v3 view to allign with the rest of the infrastructure - Disagregation of the vcpu flags in separate sets to better track their use model. - A fix for the GICv2-on-v3 selftest - A small set of cosmetic fixes RISC-V: - Track ISA extensions used by Guest using bitmap - Added system instruction emulation framework - Added CSR emulation framework - Added gfp_custom flag in struct kvm_mmu_memory_cache - Added G-stage ioremap() and iounmap() functions - Added support for Svpbmt inside Guest s390: - add an interface to provide a hypervisor dump for secure guests - improve selftests to use TAP interface - enable interpretive execution of zPCI instructions (for PCI passthrough) - First part of deferred teardown - CPU Topology - PV attestation - Minor fixes x86: - Permit guests to ignore single-bit ECC errors - Intel IPI virtualization - Allow getting/setting pending triple fault with KVM_GET/SET_VCPU_EVENTS - PEBS virtualization - Simplify PMU emulation by just using PERF_TYPE_RAW events - More accurate event reinjection on SVM (avoid retrying instructions) - Allow getting/setting the state of the speaker port data bit - Refuse starting the kvm-intel module if VM-Entry/VM-Exit controls are inconsistent - "Notify" VM exit (detect microarchitectural hangs) for Intel - Use try_cmpxchg64 instead of cmpxchg64 - Ignore benign host accesses to PMU MSRs when PMU is disabled - Allow disabling KVM's "MONITOR/MWAIT are NOPs!" behavior - Allow NX huge page mitigation to be disabled on a per-vm basis - Port eager page splitting to shadow MMU as well - Enable CMCI capability by default and handle injected UCNA errors - Expose pid of vcpu threads in debugfs - x2AVIC support for AMD - cleanup PIO emulation - Fixes for LLDT/LTR emulation - Don't require refcounted "struct page" to create huge SPTEs - Miscellaneous cleanups: - MCE MSR emulation - Use separate namespaces for guest PTEs and shadow PTEs bitmasks - PIO emulation - Reorganize rmap API, mostly around rmap destruction - Do not workaround very old KVM bugs for L0 that runs with nesting enabled - new selftests API for CPUID Generic: - Fix races in gfn->pfn cache refresh; do not pin pages tracked by the cache - new selftests API using struct kvm_vcpu instead of a (vm, id) tuple" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (606 commits) selftests: kvm: set rax before vmcall selftests: KVM: Add exponent check for boolean stats selftests: KVM: Provide descriptive assertions in kvm_binary_stats_test selftests: KVM: Check stat name before other fields KVM: x86/mmu: remove unused variable RISC-V: KVM: Add support for Svpbmt inside Guest/VM RISC-V: KVM: Use PAGE_KERNEL_IO in kvm_riscv_gstage_ioremap() RISC-V: KVM: Add G-stage ioremap() and iounmap() functions KVM: Add gfp_custom flag in struct kvm_mmu_memory_cache RISC-V: KVM: Add extensible CSR emulation framework RISC-V: KVM: Add extensible system instruction emulation framework RISC-V: KVM: Factor-out instruction emulation into separate sources RISC-V: KVM: move preempt_disable() call in kvm_arch_vcpu_ioctl_run RISC-V: KVM: Make kvm_riscv_guest_timer_init a void function RISC-V: KVM: Fix variable spelling mistake RISC-V: KVM: Improve ISA extension by using a bitmap KVM, x86/mmu: Fix the comment around kvm_tdp_mmu_zap_leafs() KVM: SVM: Dump Virtual Machine Save Area (VMSA) to klog KVM: x86/mmu: Treat NX as a valid SPTE bit for NPT KVM: x86: Do not block APIC write for non ICR registers ...
2022-08-04Merge tag 'char-misc-6.0-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc driver updates from Greg KH: "Here is the large set of char and misc and other driver subsystem changes for 6.0-rc1. Highlights include: - large set of IIO driver updates, additions, and cleanups - new habanalabs device support added (loads of register maps much like GPUs have) - soundwire driver updates - phy driver updates - slimbus driver updates - tiny virt driver fixes and updates - misc driver fixes and updates - interconnect driver updates - hwtracing driver updates - fpga driver updates - extcon driver updates - firmware driver updates - counter driver update - mhi driver fixes and updates - binder driver fixes and updates - speakup driver fixes All of these have been in linux-next for a while without any reported problems" * tag 'char-misc-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (634 commits) drivers: lkdtm: fix clang -Wformat warning char: remove VR41XX related char driver misc: Mark MICROCODE_MINOR unused spmi: trace: fix stack-out-of-bound access in SPMI tracing functions dt-bindings: iio: adc: Add compatible for MT8188 iio: light: isl29028: Fix the warning in isl29028_remove() iio: accel: sca3300: Extend the trigger buffer from 16 to 32 bytes iio: fix iio_format_avail_range() printing for none IIO_VAL_INT iio: adc: max1027: unlock on error path in max1027_read_single_value() iio: proximity: sx9324: add empty line in front of bullet list iio: magnetometer: hmc5843: Remove duplicate 'the' iio: magn: yas530: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros iio: magnetometer: ak8974: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros iio: light: veml6030: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros iio: light: vcnl4035: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros iio: light: vcnl4000: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros iio: light: tsl2591: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() iio: light: tsl2583: Use DEFINE_RUNTIME_DEV_PM_OPS and pm_ptr() iio: light: isl29028: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() iio: light: gp2ap002: Switch to DEFINE_RUNTIME_DEV_PM_OPS and pm_ptr() ...
2022-08-03Merge tag 'net-next-6.0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking changes from Paolo Abeni: "Core: - Refactor the forward memory allocation to better cope with memory pressure with many open sockets, moving from a per socket cache to a per-CPU one - Replace rwlocks with RCU for better fairness in ping, raw sockets and IP multicast router. - Network-side support for IO uring zero-copy send. - A few skb drop reason improvements, including codegen the source file with string mapping instead of using macro magic. - Rename reference tracking helpers to a more consistent netdev_* schema. - Adapt u64_stats_t type to address load/store tearing issues. - Refine debug helper usage to reduce the log noise caused by bots. BPF: - Improve socket map performance, avoiding skb cloning on read operation. - Add support for 64 bits enum, to match types exposed by kernel. - Introduce support for sleepable uprobes program. - Introduce support for enum textual representation in libbpf. - New helpers to implement synproxy with eBPF/XDP. - Improve loop performances, inlining indirect calls when possible. - Removed all the deprecated libbpf APIs. - Implement new eBPF-based LSM flavor. - Add type match support, which allow accurate queries to the eBPF used types. - A few TCP congetsion control framework usability improvements. - Add new infrastructure to manipulate CT entries via eBPF programs. - Allow for livepatch (KLP) and BPF trampolines to attach to the same kernel function. Protocols: - Introduce per network namespace lookup tables for unix sockets, increasing scalability and reducing contention. - Preparation work for Wi-Fi 7 Multi-Link Operation (MLO) support. - Add support to forciby close TIME_WAIT TCP sockets via user-space tools. - Significant performance improvement for the TLS 1.3 receive path, both for zero-copy and not-zero-copy. - Support for changing the initial MTPCP subflow priority/backup status - Introduce virtually contingus buffers for sockets over RDMA, to cope better with memory pressure. - Extend CAN ethtool support with timestamping capabilities - Refactor CAN build infrastructure to allow building only the needed features. Driver API: - Remove devlink mutex to allow parallel commands on multiple links. - Add support for pause stats in distributed switch. - Implement devlink helpers to query and flash line cards. - New helper for phy mode to register conversion. New hardware / drivers: - Ethernet DSA driver for the rockchip mt7531 on BPI-R2 Pro. - Ethernet DSA driver for the Renesas RZ/N1 A5PSW switch. - Ethernet DSA driver for the Microchip LAN937x switch. - Ethernet PHY driver for the Aquantia AQR113C EPHY. - CAN driver for the OBD-II ELM327 interface. - CAN driver for RZ/N1 SJA1000 CAN controller. - Bluetooth: Infineon CYW55572 Wi-Fi plus Bluetooth combo device. Drivers: - Intel Ethernet NICs: - i40e: add support for vlan pruning - i40e: add support for XDP framented packets - ice: improved vlan offload support - ice: add support for PPPoE offload - Mellanox Ethernet (mlx5) - refactor packet steering offload for performance and scalability - extend support for TC offload - refactor devlink code to clean-up the locking schema - support stacked vlans for bridge offloads - use TLS objects pool to improve connection rate - Netronome Ethernet NICs (nfp): - extend support for IPv6 fields mangling offload - add support for vepa mode in HW bridge - better support for virtio data path acceleration (VDPA) - enable TSO by default - Microsoft vNIC driver (mana) - add support for XDP redirect - Others Ethernet drivers: - bonding: add per-port priority support - microchip lan743x: extend phy support - Fungible funeth: support UDP segmentation offload and XDP xmit - Solarflare EF100: add support for virtual function representors - MediaTek SoC: add XDP support - Mellanox Ethernet/IB switch (mlxsw): - dropped support for unreleased H/W (XM router). - improved stats accuracy - unified bridge model coversion improving scalability (parts 1-6) - support for PTP in Spectrum-2 asics - Broadcom PHYs - add PTP support for BCM54210E - add support for the BCM53128 internal PHY - Marvell Ethernet switches (prestera): - implement support for multicast forwarding offload - Embedded Ethernet switches: - refactor OcteonTx MAC filter for better scalability - improve TC H/W offload for the Felix driver - refactor the Microchip ksz8 and ksz9477 drivers to share the probe code (parts 1, 2), add support for phylink mac configuration - Other WiFi: - Microchip wilc1000: diable WEP support and enable WPA3 - Atheros ath10k: encapsulation offload support Old code removal: - Neterion vxge ethernet driver: this is untouched since more than 10 years" * tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1890 commits) doc: sfp-phylink: Fix a broken reference wireguard: selftests: support UML wireguard: allowedips: don't corrupt stack when detecting overflow wireguard: selftests: update config fragments wireguard: ratelimiter: use hrtimer in selftest net/mlx5e: xsk: Discard unaligned XSK frames on striding RQ net: usb: ax88179_178a: Bind only to vendor-specific interface selftests: net: fix IOAM test skip return code net: usb: make USB_RTL8153_ECM non user configurable net: marvell: prestera: remove reduntant code octeontx2-pf: Reduce minimum mtu size to 60 net: devlink: Fix missing mutex_unlock() call net/tls: Remove redundant workqueue flush before destroy net: txgbe: Fix an error handling path in txgbe_probe() net: dsa: Fix spelling mistakes and cleanup code Documentation: devlink: add add devlink-selftests to the table of contents dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock net: ionic: fix error check for vlan flags in ionic_set_nic_features() net: ice: fix error NETIF_F_HW_VLAN_CTAG_FILTER check in ice_vsi_sync_fltr() nfp: flower: add support for tunnel offload without key ID ...
2022-08-03Merge tag 'efi-next-for-v5.20' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi Pull EFI updates from Ard Biesheuvel: - Enable mirrored memory for arm64 - Fix up several abuses of the efivar API - Refactor the efivar API in preparation for moving the 'business logic' part of it into efivarfs - Enable ACPI PRM on arm64 * tag 'efi-next-for-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: (24 commits) ACPI: Move PRM config option under the main ACPI config ACPI: Enable Platform Runtime Mechanism(PRM) support on ARM64 ACPI: PRM: Change handler_addr type to void pointer efi: Simplify arch_efi_call_virt() macro drivers: fix typo in firmware/efi/memmap.c efi: vars: Drop __efivar_entry_iter() helper which is no longer used efi: vars: Use locking version to iterate over efivars linked lists efi: pstore: Omit efivars caching EFI varstore access layer efi: vars: Add thin wrapper around EFI get/set variable interface efi: vars: Don't drop lock in the middle of efivar_init() pstore: Add priv field to pstore_record for backend specific use Input: applespi - avoid efivars API and invoke EFI services directly selftests/kexec: remove broken EFI_VARS secure boot fallback check brcmfmac: Switch to appropriate helper to load EFI variable contents iwlwifi: Switch to proper EFI variable store interface media: atomisp_gmin_platform: stop abusing efivar API efi: efibc: avoid efivar API for setting variables efi: avoid efivars layer when loading SSDTs from variables efi: Correct comment on efi_memmap_alloc memblock: Disable mirror feature if kernelcore is not specified ...
2022-08-03tools/testing/selftests/vm/hmm-tests.c: fix buildAndrew Morton
hmm-tests.c:1607:42: error: 'HMM_DMIRROR_MIGRATE' undeclared (first use in this function); did you mean 'HMM_DMIRROR_WRITE'? Fixes: f6c3e1ae0114cd0 ("mm/hmm: add a test for cross device private faults") Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Ralph Campbell <rcampbell@nvidia.com> Cc: Alistair Popple <apopple@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-08-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netPaolo Abeni
Conflicts: net/ax25/af_ax25.c d7c4c9e075f8c ("ax25: fix incorrect dev_tracker usage") d62607c3fe459 ("net: rename reference+tracking helpers") drivers/net/netdevsim/fib.c 180a6a3ee60a ("netdevsim: fib: Fix reference count leak on route deletion failure") 012ec02ae441 ("netdevsim: convert driver to use unlocked devlink API during init/fini") Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-08-02Merge tag 'linux-kselftest-next-5.20-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest updates from Shuah Khan: - timers test build fixes and cleanups for new tool chains - removing khdr from kselftest framework and main Makefile - changes to test output messages to improve reports * tag 'linux-kselftest-next-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (24 commits) Makefile: replace headers_install with headers for kselftest selftests/landlock: drop deprecated headers dependency selftests: timers: clocksource-switch: adapt to kselftest framework selftests: timers: clocksource-switch: add 'runtime' command line parameter selftests: timers: clocksource-switch: add command line switch to skip sanity check selftests: timers: clocksource-switch: sort includes selftests: timers: clocksource-switch: fix passing errors from child selftests: timers: inconsistency-check: adapt to kselftest framework selftests: timers: nanosleep: adapt to kselftest framework selftests: timers: fix declarations of main() selftests: timers: valid-adjtimex: build fix for newer toolchains Makefile: add headers_install to kselftest targets selftests: drop KSFT_KHDR_INSTALL make target selftests: stop using KSFT_KHDR_INSTALL selftests: drop khdr make target selftests: drivers/dma-buf: Improve message in selftest summary selftests/kcmp: Make the test output consistent and clear selftests:timers: globals don't need initialization to 0 selftests/drivers/gpu: Add error messages to drm_mm.sh selftests/tpm2: increase timeout for kselftests ...
2022-08-02Merge tag 'linux-kselftest-kunit-5.20-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull KUnit updates from Shuah Khan: "This consists of several fixes and an important feature to discourage running KUnit tests on production systems. Running tests on a production system could leave the system in a bad state. Summary: - Add a new taint type, TAINT_TEST to signal that a test has been run. This should discourage people from running these tests on production systems, and to make it easier to tell if tests have been run accidentally (by loading the wrong configuration, etc) - Several documentation and tool enhancements and fixes" * tag 'linux-kselftest-kunit-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (29 commits) Documentation: KUnit: Fix example with compilation error Documentation: kunit: Add CLI args for kunit_tool kcsan: test: Add a .kunitconfig to run KCSAN tests kunit: executor: Fix a memory leak on failure in kunit_filter_tests clk: explicitly disable CONFIG_UML_PCI_OVER_VIRTIO in .kunitconfig mmc: sdhci-of-aspeed: test: Use kunit_test_suite() macro nitro_enclaves: test: Use kunit_test_suite() macro thunderbolt: test: Use kunit_test_suite() macro kunit: flatten kunit_suite*** to kunit_suite** in .kunit_test_suites kunit: unify module and builtin suite definitions selftest: Taint kernel when test module loaded module: panic: Taint the kernel when selftest modules load Documentation: kunit: fix example run_kunit func to allow spaces in args Documentation: kunit: Cleanup run_wrapper, fix x-ref kunit: test.h: fix a kernel-doc markup kunit: tool: Enable virtio/PCI by default on UML kunit: tool: make --kunitconfig repeatable, blindly concat kunit: add coverage_uml.config to enable GCOV on UML kunit: tool: refactor internal kconfig handling, allow overriding kunit: tool: introduce --qemu_args ...
2022-08-02Merge tag 'rcu.2022.07.26a' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull RCU updates from Paul McKenney: - Documentation updates - Miscellaneous fixes - Callback-offload updates, perhaps most notably a new RCU_NOCB_CPU_DEFAULT_ALL Kconfig option that causes all CPUs to be offloaded at boot time, regardless of kernel boot parameters. This is useful to battery-powered systems such as ChromeOS and Android. In addition, a new RCU_NOCB_CPU_CB_BOOST kernel boot parameter prevents offloaded callbacks from interfering with real-time workloads and with energy-efficiency mechanisms - Polled grace-period updates, perhaps most notably making these APIs account for both normal and expedited grace periods - Tasks RCU updates, perhaps most notably reducing the CPU overhead of RCU tasks trace grace periods by more than a factor of two on a system with 15,000 tasks. The reduction is expected to increase with the number of tasks, so it seems reasonable to hypothesize that a system with 150,000 tasks might see a 20-fold reduction in CPU overhead - Torture-test updates - Updates that merge RCU's dyntick-idle tracking into context tracking, thus reducing the overhead of transitioning to kernel mode from either idle or nohz_full userspace execution for kernels that track context independently of RCU. This is expected to be helpful primarily for kernels built with CONFIG_NO_HZ_FULL=y * tag 'rcu.2022.07.26a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (98 commits) rcu: Add irqs-disabled indicator to expedited RCU CPU stall warnings rcu: Diagnose extended sync_rcu_do_polled_gp() loops rcu: Put panic_on_rcu_stall() after expedited RCU CPU stall warnings rcutorture: Test polled expedited grace-period primitives rcu: Add polled expedited grace-period primitives rcutorture: Verify that polled GP API sees synchronous grace periods rcu: Make Tiny RCU grace periods visible to polled APIs rcu: Make polled grace-period API account for expedited grace periods rcu: Switch polled grace-period APIs to ->gp_seq_polled rcu/nocb: Avoid polling when my_rdp->nocb_head_rdp list is empty rcu/nocb: Add option to opt rcuo kthreads out of RT priority rcu: Add nocb_cb_kthread check to rcu_is_callbacks_kthread() rcu/nocb: Add an option to offload all CPUs on boot rcu/nocb: Fix NOCB kthreads spawn failure with rcu_nocb_rdp_deoffload() direct call rcu/nocb: Invert rcu_state.barrier_mutex VS hotplug lock locking order rcu/nocb: Add/del rdp to iterate from rcuog itself rcu/tree: Add comment to describe GP-done condition in fqs loop rcu: Initialize first_gp_fqs at declaration in rcu_gp_fqs() rcu/kvfree: Remove useless monitor_todo flag rcu: Cleanup RCU urgency state for offline CPU ...
2022-08-02Merge tag 'random-6.0-rc1-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/crng/random Pull random number generator updates from Jason Donenfeld: "Though there's been a decent amount of RNG-related development during this last cycle, not all of it is coming through this tree, as this cycle saw a shift toward tackling early boot time seeding issues, which took place in other trees as well. Here's a summary of the various patches: - The CONFIG_ARCH_RANDOM .config option and the "nordrand" boot option have been removed, as they overlapped with the more widely supported and more sensible options, CONFIG_RANDOM_TRUST_CPU and "random.trust_cpu". This change allowed simplifying a bit of arch code. - x86's RDRAND boot time test has been made a bit more robust, with RDRAND disabled if it's clearly producing bogus results. This would be a tip.git commit, technically, but I took it through random.git to avoid a large merge conflict. - The RNG has long since mixed in a timestamp very early in boot, on the premise that a computer that does the same things, but does so starting at different points in wall time, could be made to still produce a different RNG state. Unfortunately, the clock isn't set early in boot on all systems, so now we mix in that timestamp when the time is actually set. - User Mode Linux now uses the host OS's getrandom() syscall to generate a bootloader RNG seed and later on treats getrandom() as the platform's RDRAND-like faculty. - The arch_get_random_{seed_,}_long() family of functions is now arch_get_random_{seed_,}_longs(), which enables certain platforms, such as s390, to exploit considerable performance advantages from requesting multiple CPU random numbers at once, while at the same time compiling down to the same code as before on platforms like x86. - A small cleanup changing a cmpxchg() into a try_cmpxchg(), from Uros. - A comment spelling fix" More info about other random number changes that come in through various architecture trees in the full commentary in the pull request: https://lore.kernel.org/all/20220731232428.2219258-1-Jason@zx2c4.com/ * tag 'random-6.0-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random: random: correct spelling of "overwrites" random: handle archrandom with multiple longs um: seed rng using host OS rng random: use try_cmpxchg in _credit_init_bits timekeeping: contribute wall clock to rng on time change x86/rdrand: Remove "nordrand" flag in favor of "random.trust_cpu" random: remove CONFIG_ARCH_RANDOM
2022-08-02Merge tag 'safesetid-6.0' of https://github.com/micah-morton/linuxLinus Torvalds
Pull SafeSetID updates from Micah Morton: "This contains one commit that touches common kernel code, one that adds functionality internal to the SafeSetID LSM code, and a few other commits that only modify the SafeSetID LSM selftest. The commit that touches common kernel code simply adds an LSM hook in the setgroups() syscall that mirrors what is done for the existing LSM hooks in the setuid() and setgid() syscalls. This commit combined with the SafeSetID-specific one allow the LSM to filter setgroups() calls according to configured rule sets in the same way that is already done for setuid() and setgid()" * tag 'safesetid-6.0' of https://github.com/micah-morton/linux: LSM: SafeSetID: add setgroups() testing to selftest LSM: SafeSetID: Add setgroups() security policy handling security: Add LSM hook to setgroups() syscall LSM: SafeSetID: add GID testing to selftest LSM: SafeSetID: selftest cleanup and prepare for GIDs LSM: SafeSetID: fix userns bug in selftest
2022-08-02Merge tag 'execve-v5.20-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull execve updates from Kees Cook: - Allow unsharing time namespace on vfork+exec (Andrei Vagin) - Replace usage of deprecated kmap APIs (Fabio M. De Francesco) - Fix spelling mistake (Zhang Jiaming) * tag 'execve-v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: exec: Call kmap_local_page() in copy_string_kernel() exec: Fix a spelling mistake selftests/timens: add a test for vfork+exit fs/exec: allow to unshare a time namespace on vfork+exec
2022-08-02Merge tag 'seccomp-v5.20-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull seccomp update from Kees Cook: - Fix Clang build warning (YiFei Zhu) * tag 'seccomp-v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: selftests/seccomp: Fix compile warning when CC=clang
2022-08-02wireguard: selftests: support UMLJason A. Donenfeld
This shoud open up various possibilities like time travel execution, and is also just another platform to help shake out bugs. Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-02wireguard: selftests: update config fragmentsLukas Bulwahn
The kernel.config and debug.config fragments in wireguard selftests mention some config symbols that have been reworked: Commit c5665868183f ("mm: kmemleak: use the memory pool for early allocations") removes the config DEBUG_KMEMLEAK_EARLY_LOG_SIZE and since then, the config's feature is available without further configuration. Commit 4675ff05de2d ("kmemcheck: rip it out") removes kmemcheck and the corresponding arch config HAVE_ARCH_KMEMCHECK. There is no need for this config. Commit 3bf195ae6037 ("netfilter: nat: merge nf_nat_ipv4,6 into nat core") removes the config NF_NAT_IPV4 and since then, the config's feature is available without further configuration. Commit 41a2901e7d22 ("rcu: Remove SPARSE_RCU_POINTER Kconfig option") removes the config SPARSE_RCU_POINTER and since then, the config's feature is enabled by default. Commit dfb4357da6dd ("time: Remove CONFIG_TIMER_STATS") removes the feature and config CONFIG_TIMER_STATS without any replacement. Commit 3ca17b1f3628 ("lib/ubsan: remove null-pointer checks") removes the check and config UBSAN_NULL without any replacement. Adjust the config fragments to those changes in configs. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-02Merge tag 'for-5.20/io_uring-zerocopy-send-2022-07-29' of ↵Linus Torvalds
git://git.kernel.dk/linux-block Pull io_uring zerocopy support from Jens Axboe: "This adds support for efficient support for zerocopy sends through io_uring. Both ipv4 and ipv6 is supported, as well as both TCP and UDP. The core network changes to support this is in a stable branch from Jakub that both io_uring and net-next has pulled in, and the io_uring changes are layered on top of that. All of the work has been done by Pavel" * tag 'for-5.20/io_uring-zerocopy-send-2022-07-29' of git://git.kernel.dk/linux-block: (34 commits) io_uring: notification completion optimisation io_uring: export req alloc from core io_uring/net: use unsigned for flags io_uring/net: make page accounting more consistent io_uring/net: checks errors of zc mem accounting io_uring/net: improve io_get_notif_slot types selftests/io_uring: test zerocopy send io_uring: enable managed frags with register buffers io_uring: add zc notification flush requests io_uring: rename IORING_OP_FILES_UPDATE io_uring: flush notifiers after sendzc io_uring: sendzc with fixed buffers io_uring: allow to pass addr into sendzc io_uring: account locked pages for non-fixed zc io_uring: wire send zc request type io_uring: add notification slot registration io_uring: add rsrc referencing for notifiers io_uring: complete notifiers in tw io_uring: cache struct io_notif io_uring: add zc notification infrastructure ...
2022-08-02selftests: net: fix IOAM test skip return codeKleber Sacilotto de Souza
The ioam6.sh test script exits with an error code (1) when tests are skipped due to lack of support from userspace/kernel or not enough permissions. It should return the kselftests SKIP code instead. Reviewed-by: Justin Iurman <justin.iurman@uliege.be> Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com> Link: https://lore.kernel.org/r/20220801124615.256416-1-kleber.souza@canonical.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-08-01Merge tag 'sched-core-2022-08-01' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler updates from Ingo Molnar: "Load-balancing improvements: - Improve NUMA balancing on AMD Zen systems for affine workloads. - Improve the handling of reduced-capacity CPUs in load-balancing. - Energy Model improvements: fix & refine all the energy fairness metrics (PELT), and remove the conservative threshold requiring 6% energy savings to migrate a task. Doing this improves power efficiency for most workloads, and also increases the reliability of energy-efficiency scheduling. - Optimize/tweak select_idle_cpu() to spend (much) less time searching for an idle CPU on overloaded systems. There's reports of several milliseconds spent there on large systems with large workloads ... [ Since the search logic changed, there might be behavioral side effects. ] - Improve NUMA imbalance behavior. On certain systems with spare capacity, initial placement of tasks is non-deterministic, and such an artificial placement imbalance can persist for a long time, hurting (and sometimes helping) performance. The fix is to make fork-time task placement consistent with runtime NUMA balancing placement. Note that some performance regressions were reported against this, caused by workloads that are not memory bandwith limited, which benefit from the artificial locality of the placement bug(s). Mel Gorman's conclusion, with which we concur, was that consistency is better than random workload benefits from non-deterministic bugs: "Given there is no crystal ball and it's a tradeoff, I think it's better to be consistent and use similar logic at both fork time and runtime even if it doesn't have universal benefit." - Improve core scheduling by fixing a bug in sched_core_update_cookie() that caused unnecessary forced idling. - Improve wakeup-balancing by allowing same-LLC wakeup of idle CPUs for newly woken tasks. - Fix a newidle balancing bug that introduced unnecessary wakeup latencies. ABI improvements/fixes: - Do not check capabilities and do not issue capability check denial messages when a scheduler syscall doesn't require privileges. (Such as increasing niceness.) - Add forced-idle accounting to cgroups too. - Fix/improve the RSEQ ABI to not just silently accept unknown flags. (No existing tooling is known to have learned to rely on the previous behavior.) - Depreciate the (unused) RSEQ_CS_FLAG_NO_RESTART_ON_* flags. Optimizations: - Optimize & simplify leaf_cfs_rq_list() - Micro-optimize set_nr_{and_not,if}_polling() via try_cmpxchg(). Misc fixes & cleanups: - Fix the RSEQ self-tests on RISC-V and Glibc 2.35 systems. - Fix a full-NOHZ bug that can in some cases result in the tick not being re-enabled when the last SCHED_RT task is gone from a runqueue but there's still SCHED_OTHER tasks around. - Various PREEMPT_RT related fixes. - Misc cleanups & smaller fixes" * tag 'sched-core-2022-08-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits) rseq: Kill process when unknown flags are encountered in ABI structures rseq: Deprecate RSEQ_CS_FLAG_NO_RESTART_ON_* flags sched/core: Fix the bug that task won't enqueue into core tree when update cookie nohz/full, sched/rt: Fix missed tick-reenabling bug in dequeue_task_rt() sched/core: Always flush pending blk_plug sched/fair: fix case with reduced capacity CPU sched/core: Use try_cmpxchg in set_nr_{and_not,if}_polling sched/core: add forced idle accounting for cgroups sched/fair: Remove the energy margin in feec() sched/fair: Remove task_util from effective utilization in feec() sched/fair: Use the same cpumask per-PD throughout find_energy_efficient_cpu() sched/fair: Rename select_idle_mask to select_rq_mask sched, drivers: Remove max param from effective_cpu_util()/sched_cpu_util() sched/fair: Decay task PELT values during wakeup migration sched/fair: Provide u64 read for 32-bits arch helper sched/fair: Introduce SIS_UTIL to search idle CPU based on sum of util_avg sched: only perform capability check on privileged operation sched: Remove unused function group_first_cpu() sched/fair: Remove redundant word " *" selftests/rseq: check if libc rseq support is registered ...
2022-08-01selftests: kvm: set rax before vmcallAndrei Vagin
kvm_hypercall has to place the hypercall number in rax. Trace events show that kvm_pv_test doesn't work properly: kvm_pv_test-53132: kvm_hypercall: nr 0x0 a0 0x0 a1 0x0 a2 0x0 a3 0x0 kvm_pv_test-53132: kvm_hypercall: nr 0x0 a0 0x0 a1 0x0 a2 0x0 a3 0x0 kvm_pv_test-53132: kvm_hypercall: nr 0x0 a0 0x0 a1 0x0 a2 0x0 a3 0x0 With this change, it starts working as expected: kvm_pv_test-54285: kvm_hypercall: nr 0x5 a0 0x0 a1 0x0 a2 0x0 a3 0x0 kvm_pv_test-54285: kvm_hypercall: nr 0xa a0 0x0 a1 0x0 a2 0x0 a3 0x0 kvm_pv_test-54285: kvm_hypercall: nr 0xb a0 0x0 a1 0x0 a2 0x0 a3 0x0 Signed-off-by: Andrei Vagin <avagin@google.com> Message-Id: <20220722230241.1944655-5-avagin@google.com> Fixes: ac4a4d6de22e ("selftests: kvm: test enforcement of paravirtual cpuid features") Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-01selftests/powerpc: Avoid GCC 12 uninitialised variable warningMichael Ellerman
GCC 12 thinks that `actual` might be used uninitialised. It's not, the use is guarded by `bad_mmcr2` which is only set to true at the same point where `actual` is initialised. cycles_with_mmcr2_test.c: In function ‘cycles_with_mmcr2’: cycles_with_mmcr2_test.c:81:17: error: ‘actual’ may be used uninitialized [-Werror=maybe-uninitialized] 81 | printf("Bad MMCR2 value seen is 0x%lx\n", actual); Silence the warning by initialising `actual` to zero. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220801113746.802046-1-mpe@ellerman.id.au
2022-08-01selftests: KVM: Add exponent check for boolean statsOliver Upton
The only sensible exponent for a boolean stat is 0. Add a test assertion requiring all boolean statistics to have an exponent of 0. Signed-off-by: Oliver Upton <oupton@google.com> Reviewed-by: Andrew Jones <andrew.jones@linux.dev> Message-Id: <20220719143134.3246798-4-oliver.upton@linux.dev> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-01selftests: KVM: Provide descriptive assertions in kvm_binary_stats_testOliver Upton
As it turns out, tests sometimes fail. When that is the case, packing the test assertion with as much relevant information helps track down the problem more quickly. Sharpen up the stat descriptor assertions in kvm_binary_stats_test to more precisely describe the reason for the test assertion and which stat is to blame. Signed-off-by: Oliver Upton <oupton@google.com> Reviewed-by: Andrew Jones <andrew.jones@linux.dev> Message-Id: <20220719143134.3246798-3-oliver.upton@linux.dev> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-01selftests: KVM: Check stat name before other fieldsOliver Upton
In order to provide more useful test assertions that describe the broken stats descriptor, perform sanity check on the stat name before any other descriptor field. While at it, avoid dereferencing the name field if the sanity check fails as it is more likely to contain garbage. Signed-off-by: Oliver Upton <oupton@google.com> Reviewed-by: Andrew Jones <andrew.jones@linux.dev> Message-Id: <20220719143134.3246798-2-oliver.upton@linux.dev> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-01Merge tag 'kvmarm-5.20' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for 5.20: - Unwinder implementations for both nVHE modes (classic and protected), complete with an overflow stack - Rework of the sysreg access from userspace, with a complete rewrite of the vgic-v3 view to allign with the rest of the infrastructure - Disagregation of the vcpu flags in separate sets to better track their use model. - A fix for the GICv2-on-v3 selftest - A small set of cosmetic fixes