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2025-07-03KVM: selftests: Change MDSCR_EL1 register holding variables as uint64_tAnshuman Khandual
Change MDSCR_EL1 register holding local variables as uint64_t that reflects its true register width as well. Cc: Oliver Upton <oliver.upton@linux.dev> Cc: Joey Gouly <joey.gouly@arm.com> Cc: kvm@vger.kernel.org Cc: kvmarm@lists.linux.dev Cc: linux-kernel@vger.kernel.org Cc: linux-kselftest@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Acked-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Ada Couprie Diaz <ada.coupriediaz@arm.com> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Link: https://lore.kernel.org/r/20250613023646.1215700-3-anshuman.khandual@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-03selftests/sched_ext: Fix exit selftest hang on UPAndrea Righi
On single-CPU systems, ops.select_cpu() is never called, causing the EXIT_SELECT_CPU test case to wait indefinitely. Avoid the stall by skipping this specific sub-test when only one CPU is available. Reported-by: Phil Auld <pauld@redhat.com> Fixes: a5db7817af780 ("sched_ext: Add selftests") Signed-off-by: Andrea Righi <arighi@nvidia.com> Reviewed-by: Phil Auld <pauld@redhat.com> Tested-by: Phil Auld <pauld@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2025-07-03kselftest/arm64: Specify SVE data when testing VL set in sve-ptraceMark Brown
Since f916dd32a943 ("arm64/fpsimd: ptrace: Mandate SVE payload for streaming-mode state") we reject attempts to write to the streaming mode regset even if there is no register data supplied, causing the tests for setting vector lengths and setting SVE_VL_INHERIT in sve-ptrace to spuriously fail. Set the flag to avoid the issue, we still support not supplying register data. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250609-kselftest-arm64-ssve-fixups-v2-3-998fcfa6f240@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-03kselftest/arm64: Fix test for streaming FPSIMD write in sve-ptraceMark Brown
Since f916dd32a943 ("arm64/fpsimd: ptrace: Mandate SVE payload for streaming-mode state") we do not support writing FPSIMD payload data when writing NT_ARM_SSVE but the sve-ptrace test has an explicit test for this being supported which was not updated to reflect the new behaviour. Fix the test to expect a failure when writing FPSIMD data to the streaming mode register set. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250609-kselftest-arm64-ssve-fixups-v2-2-998fcfa6f240@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-03kselftest/arm64: Fix check for setting new VLs in sve-ptraceMark Brown
The check that the new vector length we set was the expected one was typoed to an assignment statement which for some reason the compilers didn't spot, most likely due to the macros involved. Fixes: a1d7111257cd ("selftests: arm64: More comprehensively test the SVE ptrace interface") Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Dev Jain <dev.jain@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250609-kselftest-arm64-ssve-fixups-v2-1-998fcfa6f240@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-03kselftest/arm64: Convert tpidr2 test to use kselftest.hMark Brown
Recent work by Thomas Weißschuh means that it is now possible to use kselftest.h with nolibc. Convert the tpidr2 test which is nolibc specific to use kselftest.h, making it look more standard and ensuring it gets the benefit of any work done on kselftest.h. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250609-kselftest-arm64-nolibc-header-v1-1-16ee1c6fbfed@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02selftests: drv-net: Add test for devlink-rate traffic class bandwidth ↵Carolina Jubran
distribution This test suite validates the functionality of the devlink-rate API for traffic class (TC) bandwidth allocation. It ensures that bandwidth can be distributed between different traffic classes as configured, and verifies that explicit TC-to-queue mapping is required for the allocation to be effective. The first test (test_no_tc_mapping_bandwidth) is marked as expected failure on mlx5, since the hardware automatically enforces traffic class separation by dynamically moving queues to the correct TC scheduler, even without explicit TC-to-queue mapping configuration. Test output on mlx5: 1..2 # Created VF interface: eth5 # Created VLAN eth5.101 on eth5 with tc 3 and IP 198.51.100.2 # Created VLAN eth5.102 on eth5 with tc 4 and IP 198.51.100.10 # Set representor eth4 up and added to bridge # Bandwidth check results without TC mapping: # TC 3: 0.19 Gbits/sec # TC 4: 0.76 Gbits/sec # Total bandwidth: 0.95 Gbits/sec # TC 3 percentage: 20.0% # TC 4 percentage: 80.0% ok 1 devlink_rate_tc_bw.test_no_tc_mapping_bandwidth # XFAIL Bandwidth matched 80/20 split without TC mapping # Created VF interface: eth5 # Created VLAN eth5.101 on eth5 with tc 3 and IP 198.51.100.2 # Created VLAN eth5.102 on eth5 with tc 4 and IP 198.51.100.10 # Set representor eth4 up and added to bridge # Bandwidth check results with TC mapping: # TC 3: 0.21 Gbits/sec # TC 4: 0.78 Gbits/sec # Total bandwidth: 0.98 Gbits/sec # TC 3 percentage: 21.1% # TC 4 percentage: 78.9% # Bandwidth is distributed as 80/20 with TC mapping ok 2 devlink_rate_tc_bw.test_tc_mapping_bandwidth # Totals: pass:1 fail:0 xfail:1 xpass:0 skip:0 error:0 Signed-off-by: Carolina Jubran <cjubran@nvidia.com> Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com> Reviewed-by: Nimrod Oren <noren@nvidia.com> Signed-off-by: Mark Bloch <mbloch@nvidia.com> Link: https://patch.msgid.link/20250629142138.361537-9-mbloch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-02selftest: netdevsim: Add devlink rate tc-bw testCarolina Jubran
Test verifies that netdevsim correctly implements devlink ops callbacks that set tc-bw on leaf or node rate object. Signed-off-by: Carolina Jubran <cjubran@nvidia.com> Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Mark Bloch <mbloch@nvidia.com> Link: https://patch.msgid.link/20250629142138.361537-4-mbloch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-02selftest: net: extend msg_zerocopy test with forwardingWillem de Bruijn
Zerocopy skbs are converted to regular copy skbs when data is queued to a local socket. This happens in the existing test with a sender and receiver communicating over a veth device. Zerocopy skbs are sent without copying if egressing a device. Verify that this behavior is maintained even in the common container setup where data is forwarded over a veth to the physical device. Update msg_zerocopy.sh to 1. Have a dummy network device to simulate a physical device. 2. Have forwarding enabled between veth and dummy. 3. Add a tx-only test that sends out dummy via the forwarding path. 4. Verify the exitcode of the sender, which signals zerocopy success. As dummy drops all packets, this cannot be a TCP connection. Test the new case with unconnected UDP only. Update msg_zerocopy.c to - Accept an argument whether send with zerocopy is expected. - Return an exitcode whether behavior matched that expectation. Signed-off-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250630194312.1571410-3-willemdebruijn.kernel@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-02vsock/test: Add test for null ptr deref when transport changesLuigi Leonardi
Add a new test to ensure that when the transport changes a null pointer dereference does not occur. The bug was reported upstream [1] and fixed with commit 2cb7c756f605 ("vsock/virtio: discard packets if the transport changes"). KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067] CPU: 2 UID: 0 PID: 463 Comm: kworker/2:3 Not tainted Workqueue: vsock-loopback vsock_loopback_work RIP: 0010:vsock_stream_has_data+0x44/0x70 Call Trace: virtio_transport_do_close+0x68/0x1a0 virtio_transport_recv_pkt+0x1045/0x2ae4 vsock_loopback_work+0x27d/0x3f0 process_one_work+0x846/0x1420 worker_thread+0x5b3/0xf80 kthread+0x35a/0x700 ret_from_fork+0x2d/0x70 ret_from_fork_asm+0x1a/0x30 Note that this test may not fail in a kernel without the fix, but it may hang on the client side if it triggers a kernel oops. This works by creating a socket, trying to connect to a server, and then executing a second connect operation on the same socket but to a different CID (0). This triggers a transport change. If the connect operation is interrupted by a signal, this could cause a null-ptr-deref. Since this bug is non-deterministic, we need to try several times. It is reasonable to assume that the bug will show up within the timeout period. If there is a G2H transport loaded in the system, the bug is not triggered and this test will always pass. This is because `vsock_assign_transport`, when using CID 0, like in this case, sets vsk->transport to `transport_g2h` that is not NULL if a G2H transport is available. [1]https://lore.kernel.org/netdev/Z2LvdTTQR7dBmPb5@v4bel-B760M-AORUS-ELITE-AX/ Suggested-by: Hyunwoo Kim <v4bel@theori.io> Suggested-by: Michal Luczaj <mhal@rbox.co> Signed-off-by: Luigi Leonardi <leonardi@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://patch.msgid.link/20250630-test_vsock-v5-2-2492e141e80b@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-02vsock/test: Add macros to identify transportsLuigi Leonardi
Add three new macros: TRANSPORTS_G2H, TRANSPORTS_H2G and TRANSPORTS_LOCAL. They can be used to identify the type of the transport(s) loaded when using the `get_transports()` function. Suggested-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Luigi Leonardi <leonardi@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://patch.msgid.link/20250630-test_vsock-v5-1-2492e141e80b@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-02selftests/bpf: Allow veristat compile standaloneMykyta Yatsenko
Veristat is synced into the standalone repo, where it compiles without kernel private dependencies. This patch fixes compilation errors in standalone veristat. Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20250702175622.358405-1-mykyta.yatsenko5@gmail.com
2025-07-02kselftest/arm64/mte: Add MTE_STORE_ONLY testcasesYeoreum Yun
Since ARMv8.9, FEAT_MTE_STORE_ONLY can be used to restrict raise of tag check fault on store operation only. Adds new test cases using MTE_STORE_ONLY feature. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618092957.2069907-9-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/mte: Preparation for mte store only testYeoreum Yun
Since ARMv8.9, FEAT_MTE_STORE_ONLY can be used to restrict raise of tag check fault on store operation only. This patch is preparation for testing FEAT_MTE_STORE_ONLY It shouldn't change test result. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618092957.2069907-8-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/abi: Add MTE_STORE_ONLY feature hwcap testYeoreum Yun
add MTE_STORE_ONLY feature hwcap test. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618092957.2069907-7-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02selftests/bpf: Negative test case for ref_obj_id in argsPaul Chaignon
This patch adds a test case, as shown below, for the verifier error "more than one arg with ref_obj_id". 0: (b7) r2 = 20 1: (b7) r3 = 0 2: (18) r1 = 0xffff92cee3cbc600 4: (85) call bpf_ringbuf_reserve#131 5: (55) if r0 == 0x0 goto pc+3 6: (bf) r1 = r0 7: (bf) r2 = r0 8: (85) call bpf_tcp_raw_gen_syncookie_ipv4#204 9: (95) exit This error is currently incorrectly reported as a verifier bug, with a warning. The next patch in this series will address that. Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com> Link: https://lore.kernel.org/r/3ba78e6cda47ccafd6ea70dadbc718d020154664.1751463262.git.paul.chaignon@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
2025-07-02selftests/bpf: null checks for rdonly_untrusted_mem should be preservedEduard Zingerman
Test case checking that verifier does not assume rdonly_untrusted_mem values as not null. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20250702073620.897517-2-eddyz87@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
2025-07-02selftests/bpf: Don't call fsopen() as privileged userMatteo Croce
In the BPF token example, the fsopen() syscall is called as privileged user. This is unneeded because fsopen() can be called also as unprivileged user from the user namespace. As the `fs_fd` file descriptor which was sent back and forth is still the same, keep it open instead of cloning and closing it twice via SCM_RIGHTS. cfr. https://github.com/systemd/systemd/pull/36134 Signed-off-by: Matteo Croce <teknoraver@meta.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Christian Brauner <brauner@kernel.org> Link: https://lore.kernel.org/bpf/20250701183123.31781-1-technoboy85@gmail.com
2025-07-02kselftest/arm64/mte: Add mtefar tests on check_mmap_optionsYeoreum Yun
If FEAT_MTE_TAGGED_FAR (Armv8.9) is supported, bits 63:60 of the fault address are preserved in response to synchronous tag check faults (SEGV_MTESERR). This patch adds new test cases using address tags (bits 63:60), corresponding to each existing test in check_mmap_option. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618084513.1761345-11-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/mte: Refactor check_mmap_option testYeoreum Yun
Before add mtefar testcase on check_mmap_option.c, refactor check_mmap_option: - make testcase suite array with test options (mem_type, mte_sync type and etc) to use general testcase pattern - generate each test case name acoording to test options. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618084513.1761345-10-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/mte: Add verification for address tag in signal handlerYeoreum Yun
Add the address tag [63:60] verification when synchronous mte fault is happen. when signal handler is registered with SA_EXPOSE_TAGBITS, address includes not only memory tag [59:56] but also address tag. Therefore, when verify fault address location, remove both tags Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618084513.1761345-9-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/mte: Add address tag related macro and functionYeoreum Yun
Add address tag related macro and function to test MTE_FAR feature. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618084513.1761345-8-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/mte: Check MTE_FAR feature is supportedYeoreum Yun
To run the MTE_FAR test when cpu supports MTE_FAR feature, check the MTE_FAR feature is supported in mte test. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618084513.1761345-7-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64/mte: Register mte signal handler with SA_EXPOSE_TAGBITSYeoreum Yun
To test address tag[63:60] and memory tag[59:56] is preserved when memory tag fault happen, Let mte_register_signal() to register signal handler with SA_EXPOSE_TAGBITS. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618084513.1761345-6-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02kselftest/arm64: Add MTE_FAR hwcap testYeoreum Yun
add MTE_FAR hwcap test on kselftest. Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250618084513.1761345-5-yeoreum.yun@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-07-02Merge tag 'for-linus-iommufd' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd Pull iommufd fixes from Jason Gunthorpe: "Some changes to the userspace selftest framework cause the iommufd tests to start failing. This turned out to be bugs in the iommufd side that were just getting uncovered. - Deal with MAP_HUGETLB mmaping more than requested even when in MAP_FIXED mode - Fixup missing error flow cleanup in the test - Check that the memory allocations suceeded - Suppress some bogus gcc 'may be used uninitialized' warnings" * tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd: iommufd/selftest: Fix build warnings due to uninitialized mfd iommufd/selftest: Add asserts testing global mfd iommufd/selftest: Add missing close(mfd) in memfd_mmap() iommufd/selftest: Fix iommufd_dirty_tracking with large hugepage sizes
2025-07-02selftests/kernfs: test xattr retrievalChristian Brauner
Make sure that listxattr() returns zero and that getxattr() returns ENODATA when no extended attributs are set. Use /sys/kernel/warn_count as that always exists and is a read-only file. Link: https://lore.kernel.org/20250702-hochmoderne-abklatsch-af9c605b57b2@brauner Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-07-02selftests/bpf: Add tests for bpf_cgroup_read_xattrSong Liu
Add tests for different scenarios with bpf_cgroup_read_xattr: 1. Read cgroup xattr from bpf_cgroup_from_id; 2. Read cgroup xattr from bpf_cgroup_ancestor; 3. Read cgroup xattr from css_iter; 4. Use bpf_cgroup_read_xattr in LSM hook security_socket_connect. 5. Use bpf_cgroup_read_xattr in cgroup program. Signed-off-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/20250623063854.1896364-5-song@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-07-01selftests: seg6: fix instaces typo in commentsAndrea Mayer
Fix a typo: instaces -> instances The typo has been identified using codespell, and the tool does not report any additional issues in the selftests considered. Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250629171226.4988-3-andrea.mayer@uniroma2.it Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-02selftests: tracing: Enable fprobe events before checking enable_functionsMasami Hiramatsu (Google)
Since the fprobe is not registered before enabling the fprobe events, enable_functions is also empty before enabling it. Thus the tests which checking enable_functions must ensure the event is enabled before testing the enable_functions. Link: https://lore.kernel.org/all/174343538009.843280.6583146613234713007.stgit@devnote2/ Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2025-07-01selftests: pp-bench: remove page_pool_put_page wrapperMina Almasry
Minor cleanup: remove the pointless looking _ wrapper around page_pool_put_page, and just do the call directly. Signed-off-by: Mina Almasry <almasrymina@google.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Acked-by: Jesper Dangaard Brouer <hawk@kernel.org> Link: https://patch.msgid.link/20250627200501.1712389-2-almasrymina@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-01selftests: pp-bench: remove unneeded linux/version.hMina Almasry
linux/version.h was used by the out-of-tree version, but not needed in the upstream one anymore. While I'm at it, sort the includes. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202506271434.Gk0epC9H-lkp@intel.com/ Signed-off-by: Mina Almasry <almasrymina@google.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Acked-by: Jesper Dangaard Brouer <hawk@kernel.org> Link: https://patch.msgid.link/20250627200501.1712389-1-almasrymina@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-01selftests/tc-testing: Enable CONFIG_IP_SETSebastian Andrzej Siewior
The config snippet specifies CONFIG_NET_EMATCH_IPSET. This option depends on CONFIG_IP_SET. Set CONFIG_IP_SET to be enabled at part for tc-testing. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Link: https://patch.msgid.link/20250630153341.Wgh3SzGi@linutronix.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-01selftests/bpf: Add negative test cases for snprintfPaul Chaignon
This patch adds a couple negative test cases with a trailing % at the end of the format string. The %p% case was fixed by the previous commit, whereas the %s% case was already successfully rejected before. Acked-by: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com> Link: https://lore.kernel.org/r/0669bf6eb4f9e5bb10e949d60311c06e2d942447.1751395489.git.paul.chaignon@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-07-01selftests/bpf: Fix spelling mistake "subtration" -> "subtraction"Colin Ian King
There are spelling mistakes in description text. Fix these. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20250630125528.563077-1-colin.i.king@gmail.com
2025-07-01selftests/bpf: Enable dynptr/test_probe_read_user_str_dynptrMykyta Yatsenko
Enable previously disabled dynptr/test_probe_read_user_str_dynptr test, after the fix it depended on was merged into bpf-next. Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/bpf/20250630133515.1108325-1-mykyta.yatsenko5@gmail.com
2025-07-01cpupower: Improve Python binding's MakefileJohn B. Wyatt IV
Add a few build variables to make it easier for distributions to package the bindings. Allow current variables to be overwritten by environment variables that are passed to make. CCing Thorsten Leemhuis <linux@leemhuis.info>. https://lore.kernel.org/r/20250624204105.457971-1-jwyatt@redhat.com Signed-off-by: John B. Wyatt IV <jwyatt@redhat.com> Signed-off-by: John B. Wyatt IV <sageofredondo@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-07-01selftests: vDSO: vdso_standalone_test_x86: Replace source file with symlinkThomas Weißschuh
With the switch over to nolibc the source file vdso_standalone_test_x86.c was intended to be replaced with a symlink to vdso_test_gettimeofday.c. This was the patch that was submitted to LKML, but during application the symlink was replaced by a textual copy of the linked-to file. Having two copies introduces the possibility of divergence and increases maintenance burden, switch back to a symlink. Fixes: 8770a9183fe1 ("selftests: vDSO: vdso_standalone_test_x86: Switch to nolibc") Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/lkml/20250226-parse_vdso-nolibc-v2-16-28e14e031ed8@linutronix.de/ Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-9-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: vdso_test_getrandom: Always print TAP headerThomas Weißschuh
The TAP specification requires that the output begins with a header line. If vgetrandom_init() fails and skips the test, that header line is missing. Call vgetrandom_init() after ksft_print_header(). Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-8-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: vdso_test_correctness: Fix -Wstrict-prototypesThomas Weißschuh
Functions definitions without any argument list produce a warning with -Wstrict-prototypes: vdso_test_correctness.c:111:13: warning: function declaration isn’t a prototype [-Wstrict-prototypes] 111 | static void fill_function_pointers() | ^~~~~~~~~~~~~~~~~~~~~~ Explicitly use an empty argument list. Now that all selftests a free of this warning, enable it in the Makefile. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-7-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: Enable -WallThomas Weißschuh
Protect against common programming errors through compiler warnings. These warnings are also used for the kernel itself. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-6-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: vdso_config: Avoid -Wunused-variablesThomas Weißschuh
Not all users of this header make use of all its variables. For example vdso_test_correctness.c does not use "versions": In file included from vdso_test_correctness.c:22: vdso_config.h:61:20: warning: ‘versions’ defined but not used [-Wunused-variable] 61 | static const char *versions[7] = { | ^~~~~~~~ Avoid those warnings through attribute((unused)). Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-5-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: vdso_test_getrandom: Avoid -WunusedThomas Weißschuh
vgetrandom_put_state() and the variable "ret" in kselftest() are unused. Drop the variable "ret". Suppress the warning for vgetrandom_put_state() as it is meant as an example for libc implementors. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-4-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: vdso_test_getrandom: Drop unused include of linux/compiler.hThomas Weißschuh
The header is unused. Furthermore this is not a real UAPI header, but only exists in tools/include/. This prevents building the selftest against real UAPI headers. Drop the include. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-3-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: clock_getres: Drop unused include of err.hThomas Weißschuh
Nothing from err.h is used. Drop the include. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-2-e62e37a6bcf5@linutronix.de
2025-07-01selftests: vDSO: chacha: Correctly skip test if necessaryThomas Weißschuh
According to kselftest.h ksft_exit_skip() is not meant to be called when a plan has already been printed. Use the recommended function ksft_test_result_skip(). This fixes a bug, where the TAP output would be invalid when skipping: TAP version 13 1..1 ok 2 # SKIP Not implemented on architecture The SKIP line should start with "ok 1" as the plan only contains one test. Fixes: 3b5992eaf730 ("selftests: vDSO: unconditionally build chacha test") Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-1-e62e37a6bcf5@linutronix.de
2025-07-01objtool: Add missing endian conversion to read_annotate()Heiko Carstens
Trying to compile an x86 kernel on big endian results in this error: net/ipv4/netfilter/iptable_nat.o: warning: objtool: iptable_nat_table_init+0x150: Unknown annotation type: 50331648 make[5]: *** [scripts/Makefile.build:287: net/ipv4/netfilter/iptable_nat.o] Error 255 Reason is a missing endian conversion in read_annotate(). Add the missing conversion to fix this. Fixes: 2116b349e29a ("objtool: Generic annotation infrastructure") Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20250630131230.4130185-1-hca@linux.ibm.com
2025-06-30selftests: net: Add a selftest for externally validated neighbor entriesIdo Schimmel
Add test cases for externally validated neighbor entries, testing both IPv4 and IPv6. Name the file "test_neigh.sh" so that it could be possibly extended in the future with more neighbor test cases. Example output: # ./test_neigh.sh TEST: IPv4 "extern_valid" flag: Add entry [ OK ] TEST: IPv4 "extern_valid" flag: Add with an invalid state [ OK ] TEST: IPv4 "extern_valid" flag: Add with "use" flag [ OK ] TEST: IPv4 "extern_valid" flag: Replace entry [ OK ] TEST: IPv4 "extern_valid" flag: Replace entry with "managed" flag [ OK ] TEST: IPv4 "extern_valid" flag: Replace with an invalid state [ OK ] TEST: IPv4 "extern_valid" flag: Interface down [ OK ] TEST: IPv4 "extern_valid" flag: Carrier down [ OK ] TEST: IPv4 "extern_valid" flag: Transition to "reachable" state [ OK ] TEST: IPv4 "extern_valid" flag: Transition back to "stale" state [ OK ] TEST: IPv4 "extern_valid" flag: Forced garbage collection [ OK ] TEST: IPv4 "extern_valid" flag: Periodic garbage collection [ OK ] TEST: IPv6 "extern_valid" flag: Add entry [ OK ] TEST: IPv6 "extern_valid" flag: Add with an invalid state [ OK ] TEST: IPv6 "extern_valid" flag: Add with "use" flag [ OK ] TEST: IPv6 "extern_valid" flag: Replace entry [ OK ] TEST: IPv6 "extern_valid" flag: Replace entry with "managed" flag [ OK ] TEST: IPv6 "extern_valid" flag: Replace with an invalid state [ OK ] TEST: IPv6 "extern_valid" flag: Interface down [ OK ] TEST: IPv6 "extern_valid" flag: Carrier down [ OK ] TEST: IPv6 "extern_valid" flag: Transition to "reachable" state [ OK ] TEST: IPv6 "extern_valid" flag: Transition back to "stale" state [ OK ] TEST: IPv6 "extern_valid" flag: Forced garbage collection [ OK ] TEST: IPv6 "extern_valid" flag: Periodic garbage collection [ OK ] Signed-off-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20250626073111.244534-3-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-28tools/nolibc: MIPS: add support for N64 and N32 ABIsThomas Weißschuh
Add support for the MIPS 64bit N64 and ILP32 N32 ABIs. In addition to different byte orders and ABIs there are also different releases of the MIPS architecture. To avoid blowing up the test matrix, only add a subset of all possible test combinations. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Tested-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Link: https://lore.kernel.org/r/20250623-nolibc-mips-n32-v3-4-6ae2d89f4259@weissschuh.net
2025-06-28tools/nolibc: MIPS: drop noreorder optionThomas Weißschuh
There are no more statements in the assembly code which would require the usage of ".set noreorder". Remove the option. This also allows removal of the manual "nop" instruction in the delay slot. Suggested-by: Maciej W. Rozycki <macro@orcam.me.uk> Link: https://lore.kernel.org/lkml/alpine.DEB.2.21.2502172208570.65342@angie.orcam.me.uk/ Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Tested-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Link: https://lore.kernel.org/r/20250623-nolibc-mips-n32-v3-3-6ae2d89f4259@weissschuh.net
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