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2025-09-18Merge branch 'for-6.18/cxl-delay-dport' into cxl-for-nextDave Jiang6-90/+172
Add changes to delay the allocation and setup of dports until when the endpoint device is being probed. At this point, the CXL link is established from endpoint to host bridge. Addresses issues seen on some platforms when dports are probed earlier. Link: https://lore.kernel.org/linux-cxl/20250829180928.842707-1-dave.jiang@intel.com/
2025-09-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski13-25/+364
Cross-merge networking fixes after downstream PR (net-6.17-rc7). No conflicts. Adjacent changes: drivers/net/ethernet/mellanox/mlx5/core/en/fs.h 9536fbe10c9d ("net/mlx5e: Add PSP steering in local NIC RX") 7601a0a46216 ("net/mlx5e: Add a miss level for ipsec crypto offload") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-18selftests: always install UAPI headers to the correct directoryThomas Weißschuh1-1/+4
Currently the UAPI headers are always installed into the source directory. When building out-of-tree this doesn't work, as the include path will be wrong and it dirties the source tree, leading to complains by kbuild. Make sure the 'headers' target installs the UAPI headers in the correctly. The real target directory can come from multiple places. To handle them all extract the target directory from KHDR_INCLUDES. Link: https://lore.kernel.org/r/20250918-kselftest-uapi-out-of-tree-v1-1-f4434f28adcd@linutronix.de Reported-by: Jason Gunthorpe <jgg@nvidia.com> Closes: https://lore.kernel.org/lkml/20250917153209.GA2023406@nvidia.com/ Fixes: 1a59f5d31569 ("selftests: Add headers target") Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-09-18cxl/test: Setup target_map for cxl_test decoder initializationDave Jiang1-3/+9
cxl_test uses mock functions for decoder enumaration. Add initialization of the cxld->target_map[] for cxl_test based decoders in the mock functions. Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Tested-by: Robert Richter <rrichter@amd.com> Reviewed-by: Alison Schofield <alison.schofield@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-09-18cxl/test: Adjust the mock version of devm_cxl_switch_port_decoders_setup()Dave Jiang4-4/+20
With devm_cxl_switch_port_decoders_setup() being called within cxl_core instead of by the port driver probe, adjustments are needed to deal with circular symbol dependency when this function is being mock'd. Add the appropriate changes to get around the circular dependency. Reviewed-by: Alison Schofield <alison.schofield@intel.com> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-09-18cxl/test: Add mock version of devm_cxl_add_dport_by_dev()Dave Jiang6-2/+99
devm_cxl_add_dport_by_dev() outside of cxl_test is done through PCI hierarchy. However with cxl_test, it needs to be done through the platform device hierarchy. Add the mock function for devm_cxl_add_dport_by_dev(). When cxl_core calls a cxl_core exported function and that function is mocked by cxl_test, the call chain causes a circular dependency issue. Dan provided a workaround to avoid this issue. Apply the method to changes from the late dport allocation changes in order to enable cxl-test. In cxl_core they are defined with "__" added in front of the function. A macro is used to define the original function names for when non-test version of the kernel is built. A bit of macros and typedefs are used to allow mocking of those functions in cxl_test. Co-developed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Reviewed-by: Li Ming <ming.li@zohomail.com> Tested-by: Alison Schofield <alison.schofield@intel.com> Tested-by: Robert Richter <rrichter@amd.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-09-18cxl/test: Refactor decoder setup to reduce cxl_test burdenDave Jiang4-81/+44
Group the decoder setup code in switch and endpoint port probe into a single function for each to reduce the number of functions to be mocked in cxl_test. Introduce devm_cxl_switch_port_decoders_setup() and devm_cxl_endpoint_decoders_setup(). These two functions will be mocked instead with some functions optimized out since the mock version does not do anything. Remove devm_cxl_setup_hdm(), devm_cxl_add_passthrough_decoder(), and devm_cxl_enumerate_decoders() in cxl_test mock code. In turn, mock_cxl_add_passthrough_decoder() can be removed since cxl_test does not setup passthrough decoders. __wrap_cxl_hdm_decode_init() and __wrap_cxl_dvsec_rr_decode() can be removed as well since they only return 0 when called. [dj: drop 'struct cxl_port' forward declaration (Robert)] Suggested-by: Robert Richter <rrichter@amd.com> Reviewed-by: Alison Schofield <alison.schofield@intel.com> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Reviewed-by: Robert Richter <rrichter@amd.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-09-18kselftest/arm64: Check that unsupported regsets fail in sve-ptraceMark Brown1-0/+46
Add a test which verifies that NT_ARM_SVE and NT_ARM_SSVE reads and writes are rejected as expected when the relevant architecture feature is not supported. Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
2025-09-18kselftest/arm64: Verify that we reject out of bounds VLs in sve-ptraceMark Brown1-1/+31
We do not currently have a test that asserts that we reject attempts to set a vector length smaller than SVE_VL_MIN or larger than SVE_VL_MAX, add one since that is our current behaviour. Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
2025-09-18selftests: tls: test skb copy under mem pressure and OOBJakub Kicinski1-0/+16
Add a test which triggers mem pressure via OOB writes. Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Link: https://patch.msgid.link/20250917002814.1743558-2-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-17selftest: packetdrill: Add tcp_fastopen_server_reset-after-disconnect.pkt.Kuniyuki Iwashima1-0/+26
The test reproduces the scenario explained in the previous patch. Without the patch, the test triggers the warning and cannot see the last retransmitted packet. # ./ksft_runner.sh tcp_fastopen_server_reset-after-disconnect.pkt TAP version 13 1..2 [ 29.229250] ------------[ cut here ]------------ [ 29.231414] WARNING: CPU: 26 PID: 0 at net/ipv4/tcp_timer.c:542 tcp_retransmit_timer+0x32/0x9f0 ... tcp_fastopen_server_reset-after-disconnect.pkt:26: error handling packet: Timed out waiting for packet not ok 1 ipv4 tcp_fastopen_server_reset-after-disconnect.pkt:26: error handling packet: Timed out waiting for packet not ok 2 ipv6 # Totals: pass:0 fail:2 xfail:0 xpass:0 skip:0 error:0 Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250915175800.118793-3-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-17selftests: bonding: add vlan over bond testingHangbin Liu2-0/+59
Add a vlan over bond testing to make sure arp/ns target works. Also change all the configs to mudules. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://patch.msgid.link/20250916080127.430626-2-liuhangbin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-17selftests/bpf: trigger verifier.c:maybe_exit_scc() for a speculative stateEduard Zingerman1-0/+21
This is a test case minimized from a syzbot reproducer from [1]. The test case triggers verifier.c:maybe_exit_scc() w/o preceding call to verifier.c:maybe_enter_scc() on a speculative symbolic execution path. Here is verifier log for the test case: Live regs before insn: 0: .......... (b7) r0 = 100 1 1: 0......... (7b) *(u64 *)(r10 -512) = r0 1 2: 0......... (b5) if r0 <= 0x0 goto pc-2 3: 0......... (95) exit 0: R1=ctx() R10=fp0 0: (b7) r0 = 100 ; R0_w=100 1: (7b) *(u64 *)(r10 -512) = r0 ; R0_w=100 R10=fp0 fp-512_w=100 2: (b5) if r0 <= 0x0 goto pc-2 mark_precise: ... 2: R0_w=100 3: (95) exit from 2 to 1 (speculative execution): R0_w=scalar() R1=ctx() R10=fp0 fp-512_w=100 1: R0_w=scalar() R1=ctx() R10=fp0 fp-512_w=100 1: (7b) *(u64 *)(r10 -512) = r0 processed 5 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0 - Non-speculative execution path 0-3 does not allocate any checkpoints (and hence does not call maybe_enter_scc()), and schedules a speculative jump from 2 to 1. - Speculative execution path stops immediately because of an infinite loop detection and triggers verifier.c:update_branch_counts() -> maybe_exit_scc() calls. [1] https://lore.kernel.org/bpf/68c85acd.050a0220.2ff435.03a4.GAE@google.com/ Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20250916212251.3490455-2-eddyz87@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-17selftest/futex: Compile also with libnuma < 2.0.16Sebastian Andrzej Siewior2-12/+14
After using numa_set_mempolicy_home_node() the test fails to compile on systems with libnuma library versioned lower than 2.0.16. In order to allow lower library version add a pkg-config related check and exclude that part of the code. Without the proper MPOL setup it can't be tested. Make a total number of tests two. The first one is the first batch and the second is the MPOL related one. The goal is to let the user know if it has been skipped due to library limitation. Remove test_futex_mpol(), it was unused and it is now complained by the compiler if the part is not compiled. Fixes: 0ecb4232fc65e ("selftests/futex: Set the home_node in futex_numa_mpol") Closes: https://lore.kernel.org/oe-lkp/202507150858.bedaf012-lkp@intel.com Reported-by: kernel test robot <oliver.sang@intel.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
2025-09-17selftest/futex: Reintroduce "Memory out of range" numa_mpol's subtestAndré Almeida1-1/+7
Commit d8e2f919997 ("selftests/futex: Fix some futex_numa_mpol subtests") removed the "Memory out of range" subtest due to it being dependent on the memory layout of the test process having an invalid memory address just after the `*futex_ptr` allocated memory. Reintroduce this test and make it deterministic, by allocation two memory pages and marking the second one with PROT_NONE. Signed-off-by: André Almeida <andrealmeid@igalia.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Waiman Long <longman@redhat.com>
2025-09-17selftest/futex: Make the error check more precise for futex_numa_mpolAndré Almeida1-15/+21
Instead of just checking if the syscall failed as expected, check as well if the returned error code matches the expected error code. [ bigeasy: reword the commmit message ] Signed-off-by: André Almeida <andrealmeid@igalia.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Waiman Long <longman@redhat.com>
2025-09-17cxl: Add a cached copy of target_map to cxl_decoderDave Jiang1-4/+4
Add a cached copy of the hardware port-id list that is available at init before all @dport objects have been instantiated. Change is in preparation of delayed dport instantiation. Reviewed-by: Robert Richter <rrichter@amd.com> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Tested-by: Robert Richter <rrichter@amd.com> Reviewed-by: Alison Schofield <alison.schofield@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-09-17kselftest/arm64/gcs/basic-gcs: Respect parent directory CFLAGSThomas Weißschuh1-3/+3
basic-gcs has it's own make rule to handle the special compiler invocation to build against nolibc. This rule does not respect the $(CFLAGS) passed by the Makefile from the parent directory. However these $(CFLAGS) set up the include path to include the UAPI headers from the current kernel. Due to this the asm/hwcap.h header is used from the toolchain instead of the UAPI and the definition of HWCAP_GCS is not found. Restructure the rule for basic-gcs to respect the $(CFLAGS). Also drop those options which are already provided by $(CFLAGS). Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Closes: https://lore.kernel.org/lkml/CA+G9fYv77X+kKz2YT6xw7=9UrrotTbQ6fgNac7oohOg8BgGvtw@mail.gmail.com/ Fixes: a985fe638344 ("kselftest/arm64/gcs: Use nolibc's getauxval()") Tested-by: Linux Kernel Functional Testing <lkft@linaro.org> Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
2025-09-17selftests/bpf: Test accesses to ctx paddingPaul Chaignon1-0/+30
This patch adds tests covering the various paddings in ctx structures. In case of sk_lookup BPF programs, the behavior is a bit different because accesses to the padding are explicitly allowed. Other cases result in a clear reject from the verifier. Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/3dc5f025e350aeb2bb1c257b87c577518e574aeb.1758094761.git.paul.chaignon@gmail.com
2025-09-17selftests/bpf: Move macros to bpf_misc.hPaul Chaignon5-13/+6
Move the sizeof_field and offsetofend macros from individual test files to the common bpf_misc.h to avoid duplication. Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/97a3f3788bd3aec309100bc073a5c77130e371fd.1758094761.git.paul.chaignon@gmail.com
2025-09-17selftests/hid: hidraw: forge wrong ioctls and tests themBenjamin Tissoires1-0/+127
We also need coverage for when the malicious user is not using the proper ioctls definitions and tries to work around the driver. Most of the scaffholding has been generated by claude-4-sonnet and then carefully reviewed. Suggested-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Benjamin Tissoires <bentiss@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2025-09-17selftests/hid: hidraw: add more coverage for hidraw ioctlsBenjamin Tissoires2-0/+352
Try to ensure all ioctls are having at least one test. Most of the scaffholding has been generated by claude-4-sonnet and then carefully reviewed. Signed-off-by: Benjamin Tissoires <bentiss@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2025-09-17selftests/hid: update vmtest.sh for virtme-ngBenjamin Tissoires1-245/+423
This commit is a rewrite almost from scratch of vmtest.sh. By relying on virtme-ng, we get rid of boot2container, reducing the total bootup time (and network requirements). That means that we are relying on the programs being installed on the host, but that shouldn't be an issue. The generation of the kconfig is also now handled by virtme-ng, so that's one less thing to worry. I used tools/testing/selftests/vsock/vmtest.sh as a base and modified it to look mostly like my previous script: - removed the custom ssh handling - make use of vng for compiling, which allows to bring remote compilation (and potentially remote compilation on a remote container) - change the verbosity logic by having 2 levels: - first one shows the tests outputs - second level also shows the VM logs - instead of only running the compiled kernel when it is built, if we are in the kernel tree, use the kernel artifacts there (and complain if they are not built) - adapted the tests list to match the HID subsystem tests Signed-off-by: Benjamin Tissoires <bentiss@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2025-09-16selftests/kselftest_harness: Add harness-selftest.expected to TEST_FILESYi Lai1-0/+1
The harness-selftest.expected is not installed in INSTALL_PATH. Attempting to execute harness-selftest.sh shows warning: diff: ./kselftest_harness/harness-selftest.expected: No such file or directory Add harness-selftest.expected to TEST_FILES. Link: https://lore.kernel.org/r/20250909082619.584470-1-yi1.lai@intel.com Fixes: df82ffc5a3c1 ("selftests: harness: Add kselftest harness selftest") Signed-off-by: Yi Lai <yi1.lai@intel.com> Reviewed-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-09-16selftests/Makefile: include $(INSTALL_DEP_TARGETS) in clean target to clean ↵Nai-Chen Cheng1-1/+1
net/lib dependency The selftests 'make clean' does not clean the net/lib because it only processes $(TARGETS) and ignores $(INSTALL_DEP_TARGETS). This leaves compiled objects in net/lib after cleaning, requiring manual cleanup. Include $(INSTALL_DEP_TARGETS) in clean target to ensure net/lib dependency is properly cleaned. Signed-off-by: Nai-Chen Cheng <bleach1827@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Simon Horman <horms@kernel.org> # build-tested Acked-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://patch.msgid.link/20250910-selftests-makefile-clean-v1-1-29e7f496cd87@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-16selftests: watchdog: skip ping loop if WDIOF_KEEPALIVEPING not supportedAkhilesh Patil1-0/+6
Check if watchdog device supports WDIOF_KEEPALIVEPING option before entering keep_alive() ping test loop. Fix watchdog-test silently looping if ioctl based ping is not supported by the device. Exit from test in such case instead of getting stuck in loop executing failing keep_alive() watchdog_info: identity: m41t93 rtc Watchdog firmware_version: 0 Support/Status: Set timeout (in seconds) Support/Status: Watchdog triggers a management or other external alarm not a reboot Watchdog card disabled. Watchdog timeout set to 5 seconds. Watchdog ping rate set to 2 seconds. Watchdog card enabled. WDIOC_KEEPALIVE not supported by this device without this change Watchdog card disabled. Watchdog timeout set to 5 seconds. Watchdog ping rate set to 2 seconds. Watchdog card enabled. Watchdog Ticking Away! (Where test stuck here forver silently) Updated change log at commit time: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20250914152840.GA3047348@bhairav-test.ee.iitb.ac.in Fixes: d89d08ffd2c5 ("selftests: watchdog: Fix ioctl SET* error paths to take oneshot exit path") Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-09-16KVM: riscv: selftests: Add SBI FWFT to get-reg-list testAnup Patel1-0/+32
KVM RISC-V now supports SBI FWFT, so add it to the get-reg-list test. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20250823155947.1354229-7-apatel@ventanamicro.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16KVM: riscv: selftests: Add common supported test casesQuan Zhou1-0/+6
Some common KVM test cases are supported on riscv now as following: access_tracking_perf_test dirty_log_perf_test memslot_modification_stress_test memslot_perf_test mmu_stress_test rseq_test Signed-off-by: Quan Zhou <zhouquan@iscas.ac.cn> Signed-off-by: Dong Yang <dayss1224@gmail.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/c447f18115b27562cd65863645e41a5ef89bd37b.1756710918.git.dayss1224@gmail.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16KVM: riscv: selftests: Add missing headers for new testcasesDong Yang4-0/+4
Add missing headers to fix the build for new RISC-V KVM selftests. Signed-off-by: Quan Zhou <zhouquan@iscas.ac.cn> Signed-off-by: Dong Yang <dayss1224@gmail.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/bfb66541918de68cd89b83bc3430af94bdc75a85.1756710918.git.dayss1224@gmail.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16KVM: riscv: selftests: Use the existing RISCV_FENCE macro in `rseq-riscv.h`Quan Zhou1-2/+1
To avoid redefinition issues with RISCV_FENCE, directly reference the existing macro in `rseq-riscv.h`. Signed-off-by: Quan Zhou <zhouquan@iscas.ac.cn> Signed-off-by: Dong Yang <dayss1224@gmail.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/85e5e51757c9289ca463fbc4ba6d22f9c9db791b.1756710918.git.dayss1224@gmail.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16KVM: riscv: selftests: Add bfloat16 extension to get-reg-list testQuan Zhou1-0/+12
The KVM RISC-V allows Zfbfmin/Zvfbfmin/Zvfbfwma extensions for Guest/VM so add them to get-reg-list test. Signed-off-by: Quan Zhou <zhouquan@iscas.ac.cn> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Nutty Liu <nutty.liu@hotmail.com> Reviewed-by: Nutty Liu <liujingqi@lanxincomputing.com> Link: https://lore.kernel.org/r/40e52ff7053401a2fcb206e75f45ebc8557fc28b.1754646071.git.zhouquan@iscas.ac.cn Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-16KVM: riscv: selftests: Add Zicbop extension to get-reg-list testQuan Zhou1-0/+16
The KVM RISC-V allows Zicbop extension for Guest/VM so add them to get-reg-list test. Signed-off-by: Quan Zhou <zhouquan@iscas.ac.cn> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Nutty Liu <nutty.liu@hotmail.com> Link: https://lore.kernel.org/r/076908690c15070f907f43d2ff81ba7e95582ec7.1754646071.git.zhouquan@iscas.ac.cn Signed-off-by: Anup Patel <anup@brainfault.org>
2025-09-15bpf...d_path(): constify path argumentAl Viro1-1/+1
Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2025-09-15selftests: ncdevmem: remove sleep on rxStanislav Fomichev1-2/+0
RX devmem sometimes fails on NIPA: https://netdev-3.bots.linux.dev/vmksft-fbnic-qemu-dbg/results/294402/7-devmem-py/ Both RSS and flow steering are properly installed, but the wait_port_listen fails. Try to remove sleep(1) to see if the cause of the failure is spending too much time during RX setup. I don't see a good reason to have sleep in the first place. If there needs to be a delay between installing the rules and receiving the traffic, let's add it to the callers (devmem.py) instead. Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> Reviewed-by: Mina Almasry <almasrymina@google.com> Link: https://patch.msgid.link/20250912170611.676110-1-sdf@fomichev.me Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-15selftests: mptcp: close server IPC descriptorsGeliang Tang2-4/+12
The client-side function connect_one_server() properly closes its IPC descriptor after use, but the server-side code in both mptcp_sockopt.c and mptcp_inq.c was missing corresponding close() calls for their IPC descriptors, leaving file descriptors open unnecessarily. This change ensures proper cleanup by: 1. Adding missing close(pipefds[0]/unixfds[0]) in server processes 2. Adding close(pipefds[1]/unixfds[1]) after server() function calls This ensures both ends of the IPC pipe are properly closed in their respective processes, preventing file descriptor leaks. Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250912-net-next-mptcp-minor-fixes-6-18-v1-2-99d179b483ad@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-15selftests: mptcp: close server file descriptorsGeliang Tang2-0/+2
The server file descriptor ('fd') is opened in server() but never closed. While accepted connections are properly closed in process_one_client(), the main listening socket remains open, causing a resource leak. This patch ensures the server fd is properly closed after processing clients, bringing the sockopt and inq test cases in line with proper resource cleanup practices. Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250912-net-next-mptcp-minor-fixes-6-18-v1-1-99d179b483ad@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-15selftests: mptcp: sockopt: fix error messagesGeliang Tang1-6/+10
This patch fixes several issues in the error reporting of the MPTCP sockopt selftest: 1. Fix diff not printed: The error messages for counter mismatches had the actual difference ('diff') as argument, but it was missing in the format string. Displaying it makes the debugging easier. 2. Fix variable usage: The error check for 'mptcpi_bytes_acked' incorrectly used 'ret2' (sent bytes) for both the expected value and the difference calculation. It now correctly uses 'ret' (received bytes), which is the expected value for bytes_acked. 3. Fix off-by-one in diff: The calculation for the 'mptcpi_rcv_delta' diff was 's.mptcpi_rcv_delta - ret', which is off-by-one. It has been corrected to 's.mptcpi_rcv_delta - (ret + 1)' to match the expected value in the condition above it. Fixes: 5dcff89e1455 ("selftests: mptcp: explicitly tests aggregate counters") Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250912-net-mptcp-pm-uspace-deny_join_id0-v1-5-40171884ade8@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-15selftests: mptcp: userspace pm: validate deny-join-id0 flagMatthieu Baerts (NGI0)2-3/+18
The previous commit adds the MPTCP_PM_EV_FLAG_DENY_JOIN_ID0 flag. Make sure it is correctly announced by the other peer when it has been received. pm_nl_ctl will now display 'deny_join_id0:1' when monitoring the events, and when this flag was set by the other peer. The 'Fixes' tag here below is the same as the one from the previous commit: this patch here is not fixing anything wrong in the selftests, but it validates the previous fix for an issue introduced by this commit ID. Fixes: 702c2f646d42 ("mptcp: netlink: allow userspace-driven subflow establishment") Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250912-net-mptcp-pm-uspace-deny_join_id0-v1-3-40171884ade8@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-15selftests: mptcp: connect: print pcap prefixMatthieu Baerts (NGI0)1-1/+5
To be able to find which capture files have been produced after several runs. This prefix was not printed anywhere before. While at it, always use the same prefix by taking info from ns1, instead of "$connector_ns", which is sometimes ns1, sometimes ns2 in the subtests. Reviewed-by: Mat Martineau <martineau@kernel.org> Reviewed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250912-net-mptcp-fix-sft-connect-v1-5-d40e77cbbf02@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-15selftests: mptcp: print trailing bytes with odMatthieu Baerts (NGI0)1-1/+1
This is better than printing random bytes in the terminal. Note that Jakub suggested 'hexdump', but Mat found out this tool is not often installed by default. 'od' can do a similar job, and it is in the POSIX specs and available in coreutils, so it should be on more systems. While at it, display a few more bytes, just to fill in the two lines. And no need to display the 3rd only line showing the next number of bytes: 0000040. Suggested-by: Jakub Kicinski <kuba@kernel.org> Suggested-by: Mat Martineau <martineau@kernel.org> Reviewed-by: Mat Martineau <martineau@kernel.org> Reviewed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250912-net-mptcp-fix-sft-connect-v1-4-d40e77cbbf02@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-15selftests: mptcp: avoid spurious errors on TCP disconnectMatthieu Baerts (NGI0)1-2/+2
The disconnect test-case, with 'plain' TCP sockets generates spurious errors, e.g. 07 ns1 TCP -> ns1 (dead:beef:1::1:10006) MPTCP read: Connection reset by peer read: Connection reset by peer (duration 155ms) [FAIL] client exit code 3, server 3 netns ns1-FloSdv (listener) socket stat for 10006: TcpActiveOpens 2 0.0 TcpPassiveOpens 2 0.0 TcpEstabResets 2 0.0 TcpInSegs 274 0.0 TcpOutSegs 276 0.0 TcpOutRsts 3 0.0 TcpExtPruneCalled 2 0.0 TcpExtRcvPruned 1 0.0 TcpExtTCPPureAcks 104 0.0 TcpExtTCPRcvCollapsed 2 0.0 TcpExtTCPBacklogCoalesce 42 0.0 TcpExtTCPRcvCoalesce 43 0.0 TcpExtTCPChallengeACK 1 0.0 TcpExtTCPFromZeroWindowAdv 42 0.0 TcpExtTCPToZeroWindowAdv 41 0.0 TcpExtTCPWantZeroWindowAdv 13 0.0 TcpExtTCPOrigDataSent 164 0.0 TcpExtTCPDelivered 165 0.0 TcpExtTCPRcvQDrop 1 0.0 In the failing scenarios (TCP -> MPTCP), the involved sockets are actually plain TCP ones, as fallbacks for passive sockets at 2WHS time cause the MPTCP listeners to actually create 'plain' TCP sockets. Similar to commit 218cc166321f ("selftests: mptcp: avoid spurious errors on disconnect"), the root cause is in the user-space bits: the test program tries to disconnect as soon as all the pending data has been spooled, generating an RST. If such option reaches the peer before the connection has reached the closed status, the TCP socket will report an error to the user-space, as per protocol specification, causing the above failure. Note that it looks like this issue got more visible since the "tcp: receiver changes" series from commit 06baf9bfa6ca ("Merge branch 'tcp-receiver-changes'"). Address the issue by explicitly waiting for the TCP sockets (-t) to reach a closed status before performing the disconnect. More precisely, the test program now waits for plain TCP sockets or TCP subflows in addition to the MPTCP sockets that were already monitored. While at it, use 'ss' with '-n' to avoid resolving service names, which is not needed here. Fixes: 218cc166321f ("selftests: mptcp: avoid spurious errors on disconnect") Cc: stable@vger.kernel.org Suggested-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <martineau@kernel.org> Reviewed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250912-net-mptcp-fix-sft-connect-v1-3-d40e77cbbf02@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-15selftests: mptcp: connect: catch IO errors on listen sideMatthieu Baerts (NGI0)1-3/+4
IO errors were correctly printed to stderr, and propagated up to the main loop for the server side, but the returned value was ignored. As a consequence, the program for the listener side was no longer exiting with an error code in case of IO issues. Because of that, some issues might not have been seen. But very likely, most issues either had an effect on the client side, or the file transfer was not the expected one, e.g. the connection got reset before the end. Still, it is better to fix this. The main consequence of this issue is the error that was reported by the selftests: the received and sent files were different, and the MIB counters were not printed. Also, when such errors happened during the 'disconnect' tests, the program tried to continue until the timeout. Now when an IO error is detected, the program exits directly with an error. Fixes: 05be5e273c84 ("selftests: mptcp: add disconnect tests") Cc: stable@vger.kernel.org Reviewed-by: Mat Martineau <martineau@kernel.org> Reviewed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250912-net-mptcp-fix-sft-connect-v1-2-d40e77cbbf02@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-15selftests: bonding: add fail_over_mac testingHangbin Liu3-2/+142
Add a test to check each value of bond fail_over_mac option. Also fix a minor garp_test print issue. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://patch.msgid.link/20250910024336.400253-2-liuhangbin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-15selftests/tc-testing: Adapt tc police action tests for Gb rounding changesVictor Nogueira1-1/+1
For the tc police action, iproute2 rounds up mtu and burst sizes to a higher order representation. For example, if the user specifies the default mtu for a police action instance (4294967295 bytes), iproute2 will output it as 4096Mb when this action instance is dumped. After Jay's changes [1], iproute2 will round up to Gb, so 4096Mb becomes 4Gb. With that in mind, fix police's tc test output so that it works both with the current iproute2 version and Jay's. [1] https://lore.kernel.org/netdev/20250907014216.2691844-1-jay.vosburgh@canonical.com/ Signed-off-by: Victor Nogueira <victor@mojatatu.com> Reviewed-by: Cong Wang <cwang@multikernel.io> Reviewed-by: Jay Vosburgh <jay.vosburgh@canonical.com> Link: https://patch.msgid.link/20250912154616.67489-1-victor@mojatatu.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-15selftests/bpf: More open-coded gettid syscall cleanupAlan Maguire6-5/+8
Commit 0e2fb011a0ba ("selftests/bpf: Clean up open-coded gettid syscall invocations") addressed the issue that older libc may not have a gettid() function call wrapper for the associated syscall. A few more instances have crept into tests, use sys_gettid() instead, and poison raw gettid() usage to avoid future issues. Signed-off-by: Alan Maguire <alan.maguire@oracle.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20250911163056.543071-1-alan.maguire@oracle.com
2025-09-15selftests/bpf: Add a test for bpf_cgroup_from_id lookup in non-root cgnsKumar Kartikeya Dwivedi4-0/+104
Make sure that we only switch the cgroup namespace and enter a new cgroup in a child process separate from test_progs, to not mess up the environment for subsequent tests. To remove this cgroup, we need to wait for the child to exit, and then rmdir its cgroup. If the read call fails, or waitpid succeeds, we know the child exited (read call would fail when the last pipe end is closed, otherwise waitpid waits until exit(2) is called). We then invoke a newly introduced remove_cgroup_pid() helper, that identifies cgroup path using the passed in pid of the now dead child, instead of using the current process pid (getpid()). Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20250915032618.1551762-3-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-15selftests/bpf: Fix arena_spin_lock selftest failureSaket Kumar Bhaskar2-1/+17
For systems having CONFIG_NR_CPUS set to > 1024 in kernel config the selftest fails as arena_spin_lock_irqsave() returns EOPNOTSUPP. (eg - incase of powerpc default value for CONFIG_NR_CPUS is 8192) The selftest is skipped incase bpf program returns EOPNOTSUPP, with a descriptive message logged. Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com> Signed-off-by: Saket Kumar Bhaskar <skb99@linux.ibm.com> Link: https://lore.kernel.org/r/20250913091337.1841916-1-skb99@linux.ibm.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-15selftests/bpf: Skip timer_interrupt case when bpf_timer is not supportedLeon Hwang1-0/+4
Like commit fbdd61c94bcb ("selftests/bpf: Skip timer cases when bpf_timer is not supported"), 'timer_interrupt' test case should be skipped if verifier rejects bpf_timer with returning -EOPNOTSUPP. cd tools/testing/selftests/bpf ./test_progs -t timer 461 timer_interrupt:SKIP Summary: 6/0 PASSED, 7 SKIPPED, 0 FAILED Signed-off-by: Leon Hwang <leon.hwang@linux.dev> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20250915121657.28084-1-leon.hwang@linux.dev
2025-09-15kunit: qemu_configs: Add MIPS configurationsThomas Weißschuh4-0/+74
Add basic support to run various MIPS variants via kunit_tool using the virtualized malta platform. Link: https://lore.kernel.org/r/20250908-kunit-mips-v5-1-d9f0632d1854@linutronix.de Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-09-15kunit: Enable PCI on UML without triggering WARN()Thomas Weißschuh1-3/+2
Various KUnit tests require PCI infrastructure to work. All normal platforms enable PCI by default, but UML does not. Enabling PCI from .kunitconfig files is problematic as it would not be portable. So in commit 6fc3a8636a7b ("kunit: tool: Enable virtio/PCI by default on UML") PCI was enabled by way of CONFIG_UML_PCI_OVER_VIRTIO=y. However CONFIG_UML_PCI_OVER_VIRTIO requires additional configuration of CONFIG_UML_PCI_OVER_VIRTIO_DEVICE_ID or will otherwise trigger a WARN() in virtio_pcidev_init(). However there is no one correct value for UML_PCI_OVER_VIRTIO_DEVICE_ID which could be used by default. This warning is confusing when debugging test failures. On the other hand, the functionality of CONFIG_UML_PCI_OVER_VIRTIO is not used at all, given that it is completely non-functional as indicated by the WARN() in question. Instead it is only used as a way to enable CONFIG_UML_PCI which itself is not directly configurable. Instead of going through CONFIG_UML_PCI_OVER_VIRTIO, introduce a custom configuration option which enables CONFIG_UML_PCI without triggering warnings or building dead code. Link: https://lore.kernel.org/r/20250908-kunit-uml-pci-v2-1-d8eba5f73c9d@linutronix.de Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>