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2025-08-27vfio: selftests: Add test to reset vfio device.Josh Hilke3-0/+14
Add a test to vfio_pci_device_test which resets the device. If reset is not supported by the device, the test is skipped. Signed-off-by: Josh Hilke <jrhilke@google.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: David Matlack <dmatlack@google.com> Link: https://lore.kernel.org/r/20250822212518.4156428-7-dmatlack@google.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2025-08-27vfio: selftests: Move vfio dma mapping test to their own fileJosh Hilke3-18/+52
Move the dma_map_unmap test from vfio_pci_device_test to a new test: vfio_dma_mapping_test. We are going to add more complex dma mapping tests, so it makes sense to separate this from the vfio pci device test which is more of a sanity check for vfio pci functionality. Signed-off-by: Josh Hilke <jrhilke@google.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: David Matlack <dmatlack@google.com> Link: https://lore.kernel.org/r/20250822212518.4156428-6-dmatlack@google.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2025-08-27vfio: selftests: Test basic VFIO and IOMMUFD integrationJosh Hilke2-0/+158
Add a vfio test suite which verifies that userspace can bind and unbind devices, allocate I/O address space, and attach a device to an IOMMU domain using the cdev + IOMMUfd VFIO interface. Signed-off-by: Josh Hilke <jrhilke@google.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: David Matlack <dmatlack@google.com> Link: https://lore.kernel.org/r/20250822212518.4156428-5-dmatlack@google.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2025-08-27vfio: selftests: Introduce vfio_pci_device_testDavid Matlack2-0/+181
Introduce a basic VFIO selftest called vfio_pci_device_test to demonstrate the functionality of the VFIO selftest library and provide some test coverage of basic VFIO operations, including: - Mapping and unmapping DMA - Mapping and unmapping BARs - Enabling, triggering, and disabling MSI and MSI-x - Reading and writing to PCI config space This test should work with most PCI devices, as long as they are bound to vfio-pci. Acked-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: David Matlack <dmatlack@google.com> Link: https://lore.kernel.org/r/20250822212518.4156428-4-dmatlack@google.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2025-08-27vfio: selftests: Add a helper library for VFIO selftestsDavid Matlack4-0/+534
Add a basic helper library to be used by VFIO selftests. The basic unit of the library is struct vfio_pci_device, which represents a single PCI device that is bound to the vfio-pci driver. The library currently only supports a single device per group and container, and VFIO IOMMU types. The code in this library was heavily based on prior work done by Raghavendra Rao Ananta <rananta@google.com>, and the VFIO_ASSERT*() macros were written by Vipin Sharma <vipinsh@google.com>. Separate that Makefile rules for building the library into a separate script so that the library can be built by and linked into KVM selftests in a subsequent commit. Acked-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: David Matlack <dmatlack@google.com> Link: https://lore.kernel.org/r/20250822212518.4156428-3-dmatlack@google.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2025-08-27selftests: Create tools/testing/selftests/vfioDavid Matlack3-0/+10
Create the directory tools/testing/selftests/vfio with a stub Makefile and hook it up to the top-level selftests Makefile. This directory will be used in subsequent commits to host selftests for the VFIO subsystem. Acked-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: David Matlack <dmatlack@google.com> Link: https://lore.kernel.org/r/20250822212518.4156428-2-dmatlack@google.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2025-08-27selftests: cgroup: Make test_pids backwards compatibleMichal Koutný3-0/+16
The predicates in test expect event counting from 73e75e6fc352b ("cgroup/pids: Separate semantics of pids.events related to pids.max") and the test would fail on older kernels. We want to have one version of tests for all, so detect the feature and skip the test on old kernels. (The test could even switch to check v1 semantics based on the flag but keep it simple for now.) Fixes: 9f34c566027b6 ("selftests: cgroup: Add basic tests for pids controller") Signed-off-by: Michal Koutný <mkoutny@suse.com> Tested-by: Sebastian Chlad <sebastian.chlad@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2025-08-27selftests: pci_endpoint: Skip IRQ test if IRQ is out of range.Christian Bruel1-0/+4
The pci_endpoint_test tests the entire MSI/MSI-X range, which generates false errors on platforms that do not support the whole range. Skip the test in such cases and report accordingly. Signed-off-by: Christian Bruel <christian.bruel@foss.st.com> [mani: reworded description] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org> Link: https://patch.msgid.link/20250804170916.3212221-4-christian.bruel@foss.st.com
2025-08-27selftests: filesystems: Add functional test for the abort file in fusectlChen Linxuan5-0/+311
This patch add a simple functional test for the "abort" file in fusectlfs (/sys/fs/fuse/connections/ID/abort). A simple fuse daemon is added for testing. Related discussion can be found in the link below. Link: https://lore.kernel.org/all/CAOQ4uxjKFXOKQxPpxtS6G_nR0tpw95w0GiO68UcWg_OBhmSY=Q@mail.gmail.com/ Signed-off-by: Chen Linxuan <chenlinxuan@uniontech.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2025-08-27KVM: selftests: Add guest_memfd testcase to fault-in on !mmap()'d memorySean Christopherson1-0/+64
Add a guest_memfd testcase to verify that a vCPU can fault-in guest_memfd memory that supports mmap(), but that is not currently mapped into host userspace and/or has a userspace address (in the memslot) that points at something other than the target guest_memfd range. Mapping guest_memfd memory into the guest is supposed to operate completely independently from any userspace mappings. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-ID: <20250729225455.670324-25-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-08-27KVM: selftests: guest_memfd mmap() test when mmap is supportedFuad Tabba1-22/+139
Expand the guest_memfd selftests to comprehensively test host userspace mmap functionality for guest_memfd-backed memory when supported by the VM type. Introduce new test cases to verify the following: * Successful mmap operations: Ensure that MAP_SHARED mappings succeed when guest_memfd mmap is enabled. * Data integrity: Validate that data written to the mmap'd region is correctly persistent and readable. * fallocate interaction: Test that fallocate(FALLOC_FL_PUNCH_HOLE) correctly zeros out mapped pages. * Out-of-bounds access: Verify that accessing memory beyond the guest_memfd's size correctly triggers a SIGBUS signal. * Unsupported mmap: Confirm that mmap attempts fail as expected when guest_memfd mmap support is not enabled for the specific guest_memfd instance or VM type. * Flag validity: Introduce test_vm_type_gmem_flag_validity() to systematically test that only allowed guest_memfd creation flags are accepted for different VM types (e.g., GUEST_MEMFD_FLAG_MMAP for default VMs, no flags for CoCo VMs). The existing tests for guest_memfd creation (multiple instances, invalid sizes), file read/write, file size, and invalid punch hole operations are integrated into the new test_with_type() framework to allow testing across different VM types. Cc: James Houghton <jthoughton@google.com> Cc: Gavin Shan <gshan@redhat.com> Cc: Shivank Garg <shivankg@amd.com> Co-developed-by: Ackerley Tng <ackerleytng@google.com> Signed-off-by: Ackerley Tng <ackerleytng@google.com> Signed-off-by: Fuad Tabba <tabba@google.com> Co-developed-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-ID: <20250729225455.670324-24-seanjc@google.com> [Fix default vm_types to use BIT() - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-08-27KVM: selftests: Do not use hardcoded page sizes in guest_memfd testFuad Tabba2-5/+7
Update the guest_memfd_test selftest to use getpagesize() instead of hardcoded 4KB page size values. Using hardcoded page sizes can cause test failures on architectures or systems configured with larger page sizes, such as arm64 with 64KB pages. By dynamically querying the system's page size, the test becomes more portable and robust across different environments. Additionally, build the guest_memfd_test selftest for arm64. Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Shivank Garg <shivankg@amd.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Suggested-by: Gavin Shan <gshan@redhat.com> Signed-off-by: Fuad Tabba <tabba@google.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-ID: <20250729225455.670324-23-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-08-27Merge tag 'kvm-x86-fixes-6.17-rc7' of https://github.com/kvm-x86/linux into HEADPaolo Bonzini1-2/+2
* Use array_index_nospec() to sanitize the target vCPU ID when handling PV IPIs and yields as the ID is guest-controlled. * Drop a superfluous cpumask_empty() check when reclaiming SEV memory, as the common case, by far, is that at least one CPU will have entered the VM, and wbnoinvd_on_cpus_mask() will naturally handle the rare case where the set of have_run_cpus is empty. * Rename the is_signed_type() macro in kselftest_harness.h to is_signed_var() to fix a collision with linux/overflow.h. The collision generates compiler warnings due to the two macros having different implementations.
2025-08-27Merge tag 'kvm-x86-fixes-6.17-rc7' of https://github.com/kvm-x86/linux into HEADPaolo Bonzini1-2/+2
KVM x86 fixes and a selftest fix for 6.17-rcN - Use array_index_nospec() to sanitize the target vCPU ID when handling PV IPIs and yields as the ID is guest-controlled. - Drop a superfluous cpumask_empty() check when reclaiming SEV memory, as the common case, by far, is that at least one CPU will have entered the VM, and wbnoinvd_on_cpus_mask() will naturally handle the rare case where the set of have_run_cpus is empty. - Rename the is_signed_type() macro in kselftest_harness.h to is_signed_var() to fix a collision with linux/overflow.h. The collision generates compiler warnings due to the two macros having different implementations.
2025-08-27kunit: tool: Accept --raw_output=full as an alias of 'all'David Gow1-2/+2
I can never remember whether --raw_output takes 'all' or 'full'. No reason we can't support both. For the record, 'all' is the recommended, documented option. Link: https://lore.kernel.org/r/20250730031624.1911689-1-davidgow@google.com Signed-off-by: David Gow <davidgow@google.com> Reviewed-by: Rae Moar <rmoar@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-08-27selftests: drv-net: ncdevmem: explicitly set HDS threshold to 0Jakub Kicinski1-8/+13
Make sure we set HDS threshold to 0 if the device supports changing it. It's required for ZC. Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250825180447.2252977-6-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-27selftests: drv-net: ncdevmem: restore original HDS setting before exitingJakub Kicinski1-9/+103
Restore HDS settings if we modified them. Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250825180447.2252977-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-27selftests: drv-net: ncdevmem: restore old channel configJakub Kicinski1-12/+22
In case changing channel count with provider bound succeeds unexpectedly - make sure we return to original settings. Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250825180447.2252977-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-27selftests: drv-net: ncdevmem: save IDs of flow rules we addedJakub Kicinski1-36/+107
In prep for more selective resetting of ntuple filters try to save the rule IDs to a table. Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250825180447.2252977-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-27selftests: drv-net: ncdevmem: remove use of error()Jakub Kicinski1-158/+358
Using error() makes it impossible for callers to unwind their changes. Replace error() calls with proper error handling. Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250825180447.2252977-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-27selftests: drv-net: hds: restore hds settingsJakub Kicinski1-0/+39
The test currently modifies the HDS settings and doesn't restore them. This may cause subsequent tests to fail (or pass when they should not). Add defer()ed reset handling. Link: https://patch.msgid.link/20250825175939.2249165-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-27selftests/bpf: Remove may_goto tests from DENYLIST.s390xIlya Leoshkevich1-1/+0
The may_goto instruction is now fully supported on s390x, including the timed implementation, so remove the respective test from the denylist. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Link: https://lore.kernel.org/r/20250821113339.292434-6-iii@linux.ibm.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-08-27selftests/bpf: Enable timed may_goto verifier tests on s390xIlya Leoshkevich2-3/+7
Now that the timed may_goto implementation is available on s390x, enable the respective verifier tests. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Link: https://lore.kernel.org/r/20250821113339.292434-5-iii@linux.ibm.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-08-27selftests/bpf: Add __arch_s390x macroIlya Leoshkevich2-0/+6
Make it possible to limit certain tests to s390x, just like it's already done for x86_64, arm64, and riscv64. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Link: https://lore.kernel.org/r/20250821113339.292434-4-iii@linux.ibm.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-08-27selftests/bpf: Add a missing newline to the "bad arch spec" messageIlya Leoshkevich1-1/+1
Fix error messages like this one: parse_test_spec:FAIL:569 bad arch spec: 's390x'process_subtest:FAIL:1153 Can't parse test spec for program 'may_goto_simple' Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Link: https://lore.kernel.org/r/20250821113339.292434-3-iii@linux.ibm.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-08-26selftests/bpf: Remove entries from config.{arch} already present in configTiezhu Yang5-30/+0
`config.{arch}` had entries already present in `config`. When generating the config used by vmtest, concatenate the `config` file with the `config.{arch}` one, making those entries duplicated, so remove those duplications. Use the following command to get the differences: $ comm -1 -2 <(sort tools/testing/selftests/bpf/config.x86_64) <(sort tools/testing/selftests/bpf/config) $ comm -1 -2 <(sort tools/testing/selftests/bpf/config.aarch64) <(sort tools/testing/selftests/bpf/config) $ comm -1 -2 <(sort tools/testing/selftests/bpf/config.riscv64) <(sort tools/testing/selftests/bpf/config) $ comm -1 -2 <(sort tools/testing/selftests/bpf/config.ppc64el) <(sort tools/testing/selftests/bpf/config) $ comm -1 -2 <(sort tools/testing/selftests/bpf/config.s390x) <(sort tools/testing/selftests/bpf/config) This is similar with commit 7a42af4b94f1 ("selftests/bpf: Remove entries from config.s390x already present in config"). Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20250826065057.11415-1-yangtiezhu@loongson.cn
2025-08-26selftests: net: add test for dst hint mechanism with directed broadcast ↵Oscar Maes2-0/+80
addresses Add a test for ensuring that the dst hint mechanism is used for directed broadcast addresses. This test relies on mausezahn for sending directed broadcast packets. Additionally, a high GRO flush timeout is set to ensure that packets will be received as lists. The test determines if the hint mechanism was used by checking the in_brd statistic using lnstat. Signed-off-by: Oscar Maes <oscmaes92@gmail.com> Link: https://patch.msgid.link/20250819174642.5148-3-oscmaes92@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-26selftests: rtnetlink: skip tests if tools or feats are missingAlessandro Ratti1-0/+11
Some rtnetlink selftests assume the presence of ifconfig and iproute2 support for the `proto` keyword in `ip address` commands. These assumptions can cause test failures on modern systems (e.g. Debian Bookworm) where: - ifconfig is not installed by default - The iproute2 version lacks support for address protocol This patch improves test robustness by: - Skipping kci_test_promote_secondaries if ifconfig is missing - Skipping do_test_address_proto if ip address help does not mention proto These changes ensure the tests degrade gracefully by reporting SKIP instead of FAIL when prerequisites are not met, improving portability across systems. Reviewed-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Alessandro Ratti <alessandro@0x65c.net> Link: https://patch.msgid.link/20250822140633.891360-2-alessandro@0x65c.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-25selftests: drv-net: xdp: make sure we're actually testing native XDPJakub Kicinski1-2/+2
Kernel tries to be helpful and attach the XDP program in generic mode if the driver has no BPF ndo at all. Since the xdp.py tests all have "native" in their names this can be quite confusing. Force native / "drv" attachment. Note that netdevsim re-uses the generic handler as its "native" handler, so we'll maintain the test coverage of the generic mode that way. No need to test both explicitly, I reckon. Link: https://patch.msgid.link/20250822195645.1673390-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-25Merge 6.17-rc3 into char-misc-nextGreg Kroah-Hartman18-41/+978
We need the char/misc/iio fixes in here as well to build on. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-22cgroup: selftests: Add tests for freezer timeTiffany Yang1-0/+663
Test cgroup v2 freezer time stat. Freezer time accounting should be independent of other cgroups in the hierarchy and should increase iff a cgroup is CGRP_FREEZE (regardless of whether it reaches CGRP_FROZEN). Skip these tests on systems without freeze time accounting. Signed-off-by: Tiffany Yang <ynaffit@google.com> Cc: Michal Koutný <mkoutny@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2025-08-22selftests/bpf: Tests for is_scalar_branch_taken tnum logicPaul Chaignon1-0/+41
This patch adds tests for the new jeq and jne logic in is_scalar_branch_taken. The following shows the first test failing before the previous patch is applied. Once the previous patch is applied, the verifier can use the tnum values to deduce that instruction 7 is dead code. 0: call bpf_get_prandom_u32#7 ; R0_w=scalar() 1: w0 = w0 ; R0_w=scalar(smin=0,smax=umax=0xffffffff,var_off=(0x0; 0xffffffff)) 2: r0 >>= 30 ; R0_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=3,var_off=(0x0; 0x3)) 3: r0 <<= 30 ; R0_w=scalar(smin=0,smax=umax=umax32=0xc0000000,smax32=0x40000000,var_off=(0x0; 0xc0000000)) 4: r1 = r0 ; R0_w=scalar(id=1,smin=0,smax=umax=umax32=0xc0000000,smax32=0x40000000,var_off=(0x0; 0xc0000000)) R1_w=scalar(id=1,smin=0,smax=umax=umax32=0xc0000000,smax32=0x40000000,var_off=(0x0; 0xc0000000)) 5: r1 += 1024 ; R1_w=scalar(smin=umin=umin32=1024,smax=umax=umax32=0xc0000400,smin32=0x80000400,smax32=0x40000400,var_off=(0x400; 0xc0000000)) 6: if r1 != r0 goto pc+1 ; R0_w=scalar(id=1,smin=umin=umin32=1024,smax=umax=umax32=0xc0000000,smin32=0x80000400,smax32=0x40000000,var_off=(0x400; 0xc0000000)) R1_w=scalar(smin=umin=umin32=1024,smax=umax=umax32=0xc0000000,smin32=0x80000400,smax32=0x40000400,var_off=(0x400; 0xc0000000)) 7: r10 = 0 frame pointer is read only Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/bpf/550004f935e2553bdb2fb1f09cbde7d0452112d0.1755694148.git.paul.chaignon@gmail.com
2025-08-22selftests: drv-net: xdp: Validate single-buff XDP_TX in multi-buff modeDimitri Daskalakis1-1/+4
Validate that drivers with multi-buff XDP programs properly reinitialize xdp_buff between packets. Signed-off-by: Dimitri Daskalakis <dimitri.daskalakis1@gmail.com> Link: https://patch.msgid.link/20250821014023.1481662-4-dimitri.daskalakis1@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-22selftests: drv-net: xdp: Add a single-buffer XDP_TX test.Dimitri Daskalakis1-1/+22
Test single-buffer XDP_TX for packets with various payload sizes. Update the socat TX command to generate packets with 0 length payloads. Signed-off-by: Dimitri Daskalakis <dimitri.daskalakis1@gmail.com> Link: https://patch.msgid.link/20250821014023.1481662-3-dimitri.daskalakis1@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-22selftests: drv-net: xdp: Extract common XDP_TX setup/validation.Dimitri Daskalakis1-13/+34
In preparation of single-buffer XDP_TX tests, refactor common test code into the _test_xdp_native_tx method. Add support for multiple payload sizes, and additional validation for RX packet count. Pass the -n flag to echo to avoid adding an extra byte into the TX packet. Signed-off-by: Dimitri Daskalakis <dimitri.daskalakis1@gmail.com> Link: https://patch.msgid.link/20250821014023.1481662-2-dimitri.daskalakis1@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-22Merge tag 'block-6.17-20250822' of git://git.kernel.dk/linuxLinus Torvalds1-2/+2
Pull block fixes from Jens Axboe: "A set of fixes for block that should go into this tree. A bit larger than what I usually have at this point in time, a lot of that is the continued fixing of the lockdep annotation for queue freezing that we recently added, which has highlighted a number of little issues here and there. This contains: - MD pull request via Yu: - Add a legacy_async_del_gendisk mode, to prevent a user tools regression. New user tools releases will not use such a mode, the old release with a new kernel now will have warning about deprecated behavior, and we prepare to remove this legacy mode after about a year later - The rename in kernel causing user tools build failure, revert the rename in mdp_superblock_s - Fix a regression that interrupted resync can be shown as recover from mdstat or sysfs - Improve file size detection for loop, particularly for networked file systems, by using getattr to get the size rather than the cached inode size. - Hotplug CPU lock vs queue freeze fix - Lockdep fix while updating the number of hardware queues - Fix stacking for PI devices - Silence bio_check_eod() for the known case of device removal where the size is truncated to 0 sectors" * tag 'block-6.17-20250822' of git://git.kernel.dk/linux: block: avoid cpu_hotplug_lock depedency on freeze_lock block: decrement block_rq_qos static key in rq_qos_del() block: skip q->rq_qos check in rq_qos_done_bio() blk-mq: fix lockdep warning in __blk_mq_update_nr_hw_queues block: tone down bio_check_eod loop: use vfs_getattr_nosec for accurate file size loop: Consolidate size calculation logic into lo_calculate_size() block: remove newlines from the warnings in blk_validate_integrity_limits block: handle pi_tuple_size in queue_limits_stack_integrity selftests: ublk: Use ARRAY_SIZE() macro to improve code md: fix sync_action incorrect display during resync md: add helper rdev_needs_recovery() md: keep recovery_cp in mdp_superblock_s md: add legacy_async_del_gendisk mode
2025-08-22Merge tag 'mm-hotfixes-stable-2025-08-21-18-17' of ↵Linus Torvalds3-3/+266
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "20 hotfixes. 10 are cc:stable and the remainder address post-6.16 issues or aren't considered necessary for -stable kernels. 17 of these fixes are for MM. As usual, singletons all over the place, apart from a three-patch series of KHO followup work from Pasha which is actually also a bunch of singletons" * tag 'mm-hotfixes-stable-2025-08-21-18-17' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mm/mremap: fix WARN with uffd that has remap events disabled mm/damon/sysfs-schemes: put damos dests dir after removing its files mm/migrate: fix NULL movable_ops if CONFIG_ZSMALLOC=m mm/damon/core: fix damos_commit_filter not changing allow mm/memory-failure: fix infinite UCE for VM_PFNMAP pfn MAINTAINERS: mark MGLRU as maintained mm: rust: add page.rs to MEMORY MANAGEMENT - RUST iov_iter: iterate_folioq: fix handling of offset >= folio size selftests/damon: fix selftests by installing drgn related script .mailmap: add entry for Easwar Hariharan selftests/mm: add test for invalid multi VMA operations mm/mremap: catch invalid multi VMA moves earlier mm/mremap: allow multi-VMA move when filesystem uses thp_get_unmapped_area mm/damon/core: fix commit_ops_filters by using correct nth function tools/testing: add linux/args.h header and fix radix, VMA tests mm/debug_vm_pgtable: clear page table entries at destroy_args() squashfs: fix memory leak in squashfs_fill_super kho: warn if KHO is disabled due to an error kho: mm: don't allow deferred struct page with KHO kho: init new_physxa->phys_bits to fix lockdep
2025-08-22selftests/alsa: remove 0/NULL global variable assignmentNikola Z. Ivanov2-8/+8
Remove 0/NULL global variable assignment in mixer-test.c and pcm-test.c Signed-off-by: Nikola Z. Ivanov <zlatistiv@gmail.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://patch.msgid.link/20250821200132.1218850-1-zlatistiv@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-08-22KVM: arm64: selftests: Sync ID_AA64MMFR3_EL1 in set_id_regsMark Brown1-0/+1
When we added coverage for ID_AA64MMFR3_EL1 we didn't add it to the list of registers we read in the guest, do so. Fixes: 0b593ef12afc ("KVM: arm64: selftests: Catch up set_id_regs with the kernel") Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250818-kvm-arm64-selftests-mmfr3-idreg-v1-1-2f85114d0163@kernel.org Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-08-22KVM: arm64: Get rid of ARM64_FEATURE_MASK()Marc Zyngier7-20/+20
The ARM64_FEATURE_MASK() macro was a hack introduce whilst the automatic generation of sysreg encoding was introduced, and was too unreliable to be entirely trusted. We are in a better place now, and we could really do without this macro. Get rid of it altogether. Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20250817202158.395078-7-maz@kernel.org Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-08-22Merge tag 'for-netdev' of ↵Jakub Kicinski7-24/+932
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Martin KaFai Lau says: ==================== pull-request: bpf-next 2025-08-21 We've added 9 non-merge commits during the last 3 day(s) which contain a total of 13 files changed, 1027 insertions(+), 27 deletions(-). The main changes are: 1) Added bpf dynptr support for accessing the metadata of a skb, from Jakub Sitnicki. The patches are merged from a stable branch bpf-next/skb-meta-dynptr. The same patches have also been merged into bpf-next/master. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: selftests/bpf: Cover metadata access from a modified skb clone selftests/bpf: Cover read/write to skb metadata at an offset selftests/bpf: Cover write access to skb metadata via dynptr selftests/bpf: Cover read access to skb metadata via dynptr selftests/bpf: Parametrize test_xdp_context_tuntap selftests/bpf: Pass just bpf_map to xdp_context_test helper selftests/bpf: Cover verifier checks for skb_meta dynptr type bpf: Enable read/write access to skb metadata through a dynptr bpf: Add dynptr type for skb metadata ==================== Link: https://patch.msgid.link/20250821191827.2099022-1-martin.lau@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-21Merge tag 'sched_ext-for-6.17-rc2-fixes' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext fixes from Tejun Heo: - Fix a subtle bug during SCX enabling where a dead task skips init but doesn't skip sched class switch leading to invalid task state transition warning - Cosmetic fix in selftests * tag 'sched_ext-for-6.17-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: selftests/sched_ext: Remove duplicate sched.h header sched/ext: Fix invalid task state transitions on class switch
2025-08-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski13-35/+710
Cross-merge networking fixes after downstream PR (net-6.17-rc3). No conflicts or adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-21selftests/bpf: Use vmlinux.h for BPF programsHengqi Chen5-36/+11
Some of the bpf test progs still use linux/libc headers. Let's use vmlinux.h instead like the rest of test progs. This will also ease cross compiling. Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20250821030254.398826-1-hengqi.chen@gmail.com
2025-08-21selftests/seccomp: validate uprobe syscall passes through seccompJiri Olsa1-21/+86
Adding uprobe checks into the current uretprobe tests. All the related tests are now executed with attached uprobe or uretprobe or without any probe. Renaming the test fixture to uprobe, because it seems better. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Kees Cook <kees@kernel.org> Link: https://lore.kernel.org/r/20250720112133.244369-22-jolsa@kernel.org
2025-08-21selftests/bpf: Fix uprobe syscall shadow stack testJiri Olsa1-18/+6
Now that we have uprobe syscall working properly with shadow stack, we can remove testing limitations for shadow stack tests and make sure uprobe gets properly optimized. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20250821141557.13233-1-jolsa@kernel.org
2025-08-21selftests/bpf: Change test_uretprobe_regs_change for uprobe and uretprobeJiri Olsa2-6/+17
Changing the test_uretprobe_regs_change test to test both uprobe and uretprobe by adding entry consumer handler to the testmod and making it to change one of the registers. Making sure that changed values both uprobe and uretprobe handlers propagate to the user space. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20250720112133.244369-20-jolsa@kernel.org
2025-08-21selftests/bpf: Add uprobe_regs_equal testJiri Olsa2-16/+44
Changing uretprobe_regs_trigger to allow the test for both uprobe and uretprobe and renaming it to uprobe_regs_equal. We check that both uprobe and uretprobe probes (bpf programs) see expected registers with few exceptions. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20250720112133.244369-19-jolsa@kernel.org
2025-08-21selftests/bpf: Add optimized usdt variant for basic usdt testJiri Olsa1-13/+25
Adding optimized usdt variant for basic usdt test to check that usdt arguments are properly passed in optimized code path. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20250720112133.244369-18-jolsa@kernel.org
2025-08-21selftests/bpf: Add uprobe syscall sigill signal testJiri Olsa1-0/+36
Make sure that calling uprobe syscall from outside uprobe trampoline results in sigill signal. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20250720112133.244369-17-jolsa@kernel.org
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