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2025-09-09selftests: vDSO: Fix -Wunitialized in powerpc VDSO_CALL() wrapperThomas Weißschuh
The _rval register variable is meant to be an output operand of the asm statement but is instead used as input operand. clang 20.1 notices this and triggers -Wuninitialized warnings: tools/testing/selftests/timers/auxclock.c:154:10: error: variable '_rval' is uninitialized when used here [-Werror,-Wuninitialized] 154 | return VDSO_CALL(self->vdso_clock_gettime64, 2, clockid, ts); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ tools/testing/selftests/timers/../vDSO/vdso_call.h:59:10: note: expanded from macro 'VDSO_CALL' 59 | : "r" (_rval) \ | ^~~~~ tools/testing/selftests/timers/auxclock.c:154:10: note: variable '_rval' is declared here tools/testing/selftests/timers/../vDSO/vdso_call.h:47:2: note: expanded from macro 'VDSO_CALL' 47 | register long _rval asm ("r3"); \ | ^ It seems the list of input and output operands have been switched around. However as the argument registers are not always initialized they can not be marked as pure inputs as that would trigger -Wuninitialized warnings. Adding _rval as another input and output operand does also not work as it would collide with the existing _r3 variable. Instead reuse _r3 for both the argument and the return value. Fixes: 6eda706a535c ("selftests: vDSO: fix the way vDSO functions are called for powerpc") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> Link: https://lore.kernel.org/all/20250812-vdso-tests-fixes-v2-1-90f499dd35f8@linutronix.de Closes: https://lore.kernel.org/oe-kbuild-all/202506180223.BOOk5jDK-lkp@intel.com/
2025-09-09selftests: bonding: add test for LACP actor port priorityHangbin Liu
Add comprehensive selftest to verify: - Per-port actor priority setting via ad_actor_port_prio - Aggregator selection behavior with port_priority ad_select policy Also move cmd_jq helper from forwarding/lib.sh to net/lib.sh for broader reusability across network selftests. Here is the result output # ./bond_lacp_prio.sh TEST: bond 802.3ad (ad_actor_port_prio setting) [ OK ] TEST: bond 802.3ad (ad_actor_port_prio select) [ OK ] TEST: bond 802.3ad (ad_actor_port_prio switch) [ OK ] Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://patch.msgid.link/20250902064501.360822-4-liuhangbin@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-08KVM: selftests: Fix typo in hyperv cpuid test messageAlok Tiwari
Fix a typo in hyperv_cpuid.c test assertion log: replace "our of supported range" -> "out of supported range". Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com> Link: https://lore.kernel.org/r/20250824181642.629297-1-alok.a.tiwari@oracle.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-09-08selftests: net: move netlink-dumps back to progsJakub Kicinski
Commit 9bb88c659673 ("selftests: net: test extacks in netlink dumps") moved netlink-dumps from TEST_GEN_PROGS to YNL_GEN_FILES. But _FILES are not for tests, rather for utilities / helpers. Create YNL_GEN_PROGS and include netlink-dumps there. This makes netlink-dumps part of executed tests, again. Link: https://patch.msgid.link/20250906211351.3192412-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-08selftests: net: make the dump test less sensitive to mem accountingJakub Kicinski
Recent changes to make netlink socket memory accounting must have broken the implicit assumption of the netlink-dump test that we can fit exactly 64 dumps into the socket. Handle the failure mode properly, and increase the dump count to 80 to make sure we still run into the error condition if the default buffer size increases in the future. Link: https://patch.msgid.link/20250906211351.3192412-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-08selftests/bpf: Fix the issue where the error code is 0Feng Yang
The error message printed here only uses the previous err value, which results in it being printed as 0. When bpf_map__attach_struct_ops encounters an error, it uses libbpf_err_ptr(err) to set errno = -err and returns NULL. Therefore, Using -errno can fix this issue. Fix before: run_subtest:FAIL:1019 bpf_map__attach_struct_ops failed for map pro_epilogue: err=0 Fix after: run_subtest:FAIL:1019 bpf_map__attach_struct_ops failed for map pro_epilogue: err=-9 Signed-off-by: Feng Yang <yangfeng@kylinos.cn> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20250908060810.1054341-1-yangfeng59949@163.com
2025-09-08selftests/arm64: Fix grammatical error in string literalsNikola Z. Ivanov
Fix grammatical error in <past tense verb> + <infinitive> construct related to memory allocation checks. In essence change "Failed to allocated" to "Failed to allocate". Signed-off-by: Nikola Z. Ivanov <zlatistiv@gmail.com> Reviewed-by: Mark Brown <broonie@kernel.org> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Will Deacon <will@kernel.org>
2025-09-08kselftest/arm64: Add parentheses around sizeof for clarityVivek Yadav
Added parentheses around sizeof to make the expression clearer and improve readability. This change has no functional impact. ``` [command] ./scripts/checkpatch.pl tools/testing/selftests/arm64/fp/sve-ptrace.c [output] WARNING: sizeof *sve should be sizeof(*sve) ``` Signed-off-by: Vivek Yadav <vivekyadav1207731111@gmail.com> Signed-off-by: Will Deacon <will@kernel.org>
2025-09-08kselftest/arm64: Supress warning and improve readabilityVivek Yadav
The comment was correct, but `checkpatch` script flagged it with a warning as shown in the output section. The comment is slightly modified to improve readability, which also suppresses the warning. ``` [command] ./script/checkpatch.pl --strict -f tools/testing/selftests/arm64/fp/fp-stress.c [output] WARNING: Possible repeated word: 'on' ``` Signed-off-by: Vivek Yadav <vivekyadav1207731111@gmail.com> Signed-off-by: Will Deacon <will@kernel.org>
2025-09-08kselftest/arm64: Remove extra blank lineVivek Yadav
Remove an unnecessary blank line to improve code style consistency. ``` [command] ./scripts/checkpatch.pl --strict -f <path/to/file> [output] CHECK: Please don't use multiple blank lines CHECK: Blank lines aren't necessary before a close brace '}' ``` Signed-off-by: Vivek Yadav <vivekyadav1207731111@gmail.com> Signed-off-by: Will Deacon <will@kernel.org>
2025-09-08kselftest/arm64/gcs: Use nolibc's getauxval()Thomas Weißschuh
Nolibc now does have getauxval(), use it. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
2025-09-08kselftest/arm64/gcs: Correctly check return value when disabling GCSThomas Weißschuh
The return value was not assigned to 'ret', so the check afterwards does not do anything. Fixes: 3d37d4307e0f ("kselftest/arm64: Add very basic GCS test program") Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
2025-09-08Merge tag 'vfs-6.17-rc6.fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs fixes from Christian Brauner: "fuse: - Prevent opening of non-regular backing files. Fuse doesn't support non-regular files anyway. - Check whether copy_file_range() returns a larger size than requested. - Prevent overflow in copy_file_range() as fuse currently only supports 32-bit sized copies. - Cache the blocksize value if the server returned a new value as inode->i_blkbits isn't modified directly anymore. - Fix i_blkbits handling for iomap partial writes. By default i_blkbits is set to PAGE_SIZE which causes iomap to mark the whole folio as uptodate even on a partial write. But fuseblk filesystems support choosing a blocksize smaller than PAGE_SIZE risking data corruption. Simply enforce PAGE_SIZE as blocksize for fuseblk's internal inode for now. - Prevent out-of-bounds acces in fuse_dev_write() when the number of bytes to be retrieved is truncated to the fc->max_pages limit. virtiofs: - Fix page faults for DAX page addresses. Misc: - Tighten file handle decoding from userns. Check that the decoded dentry itself has a valid idmapping in the user namespace. - Fix mount-notify selftests. - Fix some indentation errors. - Add an FMODE_ flag to indicate IOCB_HAS_METADATA availability. This will be moved to an FOP_* flag with a bit more rework needed for that to happen not suitable for a fix. - Don't silently ignore metadata for sync read/write. - Don't pointlessly log warning when reading coredump sysctls" * tag 'vfs-6.17-rc6.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: fuse: virtio_fs: fix page fault for DAX page address selftests/fs/mount-notify: Fix compilation failure. fhandle: use more consistent rules for decoding file handle from userns fuse: Block access to folio overlimit fuse: fix fuseblk i_blkbits for iomap partial writes fuse: reflect cached blocksize if blocksize was changed fuse: prevent overflow in copy_file_range return value fuse: check if copy_file_range() returns larger than requested size fuse: do not allow mapping a non-regular backing file coredump: don't pointlessly check and spew warnings fs: fix indentation style block: don't silently ignore metadata for sync read/write fs: add a FMODE_ flag to indicate IOCB_HAS_METADATA availability Please enter a commit message to explain why this merge is necessary, especially if it merges an updated upstream into a topic branch.
2025-09-08selftests: arm64: Fix -Waddress warning in tpidr2 testBala-Vignesh-Reddy
Thanks to -Waddress, the compiler warns that the ksft_test_result() invocations in the arm64 tpidr2 selftest are always true. Oops. Fix the test by, err, actually running the test functions. Fixes: 6d80cb73131d ("kselftest/arm64: Convert tpidr2 test to use kselftest.h") Signed-off-by: Bala-Vignesh-Reddy <reddybalavignesh9979@gmail.com> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
2025-09-08kselftest/arm64: Log error codes in sve-ptraceMark Brown
Use ksft_perror() to report error codes from failing ptrace operations to make it easier to interpret logs when things go wrong. Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
2025-09-08selftests: arm64: Check fread return value in exec_targetBala-Vignesh-Reddy
Fix -Wunused-result warning generated when compiled with gcc 13.3.0, by checking fread's return value and handling errors, preventing potential failures when reading from stdin. Fixes compiler warning: warning: ignoring return value of 'fread' declared with attribute 'warn_unused_result' [-Wunused-result] Fixes: 806a15b2545e ("kselftests/arm64: add PAuth test for whether exec() changes keys") Signed-off-by: Bala-Vignesh-Reddy <reddybalavignesh9979@gmail.com> Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
2025-09-05selftests: ncdevmem: don't retry EFAULTStanislav Fomichev
devmem test fails on NIPA. Most likely we get skb(s) with readable frags (why?) but the failure manifests as an OOM. The OOM happens because ncdevmem spams the following message: recvmsg ret=-1 recvmsg: Bad address As of today, ncdevmem can't deal with various reasons of EFAULT: - falling back to regular recvmsg for non-devmem skbs - increasing ctrl_data size (can't happen with ncdevmem's large buffer) Exit (cleanly) with error when recvmsg returns EFAULT. This should at least cause the test to cleanup its state. Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> Reviewed-by: Mina Almasry <almasrymina@google.com> Link: https://patch.msgid.link/20250904182710.1586473-1-sdf@fomichev.me Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-05selftests/bpf: Add BPF program dump in veristatMykyta Yatsenko
Add the ability to dump BPF program instructions directly from veristat. Previously, inspecting a program required separate bpftool invocations: one to load and another to dump it, which meant running multiple commands. During active development, it's common for developers to use veristat for testing verification. Integrating instruction dumping into veristat reduces the need to switch tools and simplifies the workflow. By making this information more readily accessible, this change aims to streamline the BPF development cycle and improve usability for developers. This implementation leverages bpftool, by running it directly via popen to avoid any code duplication and keep veristat simple. Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20250905140835.1416179-1-mykyta.yatsenko5@gmail.com
2025-09-04selftests/net: packetdrill: add tcp_close_no_rst.pktEric Dumazet
This test makes sure we do send a FIN on close() if the receive queue contains data that was consumed. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Neal Cardwell <ncardwell@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Link: https://patch.msgid.link/20250903084720.1168904-3-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.17-rc5). No conflicts. Adjacent changes: include/net/sock.h c51613fa276f ("net: add sk->sk_drop_counters") 5d6b58c932ec ("net: lockless sock_i_ino()") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-04thermal: intel: selftests: workload_hint: Mask unsupported typesSrinivas Pandruvada
The workload hint may contain some other hints which are not defined. So mask out unsupported types. Currently only lower 4 bits of workload type hints are defined. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://patch.msgid.link/20250828201541.931425-1-srinivas.pandruvada@linux.intel.com [ rjw: Subject cleanup ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-09-04Merge tag 'net-6.17-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from netfilter, wireless and Bluetooth. We're reverting the removal of a Sundance driver, a user has appeared. This makes the PR rather large in terms of LoC. There's a conspicuous absence of real, user-reported 6.17 issues. Slightly worried that the summer distracted people from testing. Previous releases - regressions: - ax25: properly unshare skbs in ax25_kiss_rcv() Previous releases - always broken: - phylink: disable autoneg for interfaces that have no inband, fix regression on pcs-lynx (NXP LS1088) - vxlan: fix null-deref when using nexthop objects - batman-adv: fix OOB read/write in network-coding decode - icmp: icmp_ndo_send: fix reversing address translation for replies - tcp: fix socket ref leak in TCP-AO failure handling for IPv6 - mctp: - mctp_fraq_queue should take ownership of passed skb - usb: initialise mac header in RX path, avoid WARN - wifi: mac80211: do not permit 40 MHz EHT operation on 5/6 GHz, respect device limitations - wifi: wilc1000: avoid buffer overflow in WID string configuration - wifi: mt76: - fix regressions from mt7996 MLO support rework - fix offchannel handling issues on mt7996 - fix multiple wcid linked list corruption issues - mt7921: don't disconnect when AP requests switch to a channel which requires radar detection - mt7925u: use connac3 tx aggr check in tx complete - wifi: intel: - improve validation of ACPI DSM data - cfg: restore some 1000 series configs - wifi: ath: - ath11k: a fix for GTK rekeying - ath12k: a missed WiFi7 capability (multi-link EMLSR) - eth: intel: - ice: fix races in "low latency" firmware interface for Tx timestamps - idpf: set mac type when adding and removing MAC filters - i40e: remove racy read access to some debugfs files Misc: - Revert "eth: remove the DLink/Sundance (ST201) driver" - netfilter: conntrack: helper: Replace -EEXIST by -EBUSY, avoid confusing modprobe" * tag 'net-6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (99 commits) phy: mscc: Stop taking ts_lock for tx_queue and use its own lock selftest: net: Fix weird setsockopt() in bind_bhash.c. MAINTAINERS: add Sabrina to TLS maintainers gve: update MAINTAINERS ppp: fix memory leak in pad_compress_skb net: xilinx: axienet: Add error handling for RX metadata pointer retrieval net: atm: fix memory leak in atm_register_sysfs when device_register fail netfilter: nf_tables: Introduce NFTA_DEVICE_PREFIX selftests: netfilter: fix udpclash tool hang ax25: properly unshare skbs in ax25_kiss_rcv() mctp: return -ENOPROTOOPT for unknown getsockopt options net/smc: Remove validation of reserved bits in CLC Decline message ipv4: Fix NULL vs error pointer check in inet_blackhole_dev_init() net: thunder_bgx: decrement cleanup index before use net: thunder_bgx: add a missing of_node_put net: phylink: move PHY interrupt request to non-fail path net: lockless sock_i_ino() tools: ynl-gen: fix nested array counting wifi: wilc1000: avoid buffer overflow in WID string configuration wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() ...
2025-09-04selftests/bpf: Add case to test bpf_in_interrupt()Leon Hwang
Add a timer test case to test 'bpf_in_interrupt()'. cd tools/testing/selftests/bpf ./test_progs -t timer_interrupt 462 timer_interrupt:OK Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Leon Hwang <leon.hwang@linux.dev> Link: https://lore.kernel.org/r/20250903140438.59517-3-leon.hwang@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-04selftests/bpf: Introduce experimental bpf_in_interrupt()Leon Hwang
Filtering pid_tgid is meanlingless when the current task is preempted by an interrupt. To address this, introduce 'bpf_in_interrupt()' helper function, which allows BPF programs to determine whether they are executing in interrupt context. 'get_preempt_count()': * On x86, '*(int *) bpf_this_cpu_ptr(&__preempt_count)'. * On arm64, 'bpf_get_current_task_btf()->thread_info.preempt.count'. Then 'bpf_in_interrupt()' will be: * If !PREEMPT_RT, 'get_preempt_count() & (NMI_MASK | HARDIRQ_MASK | SOFTIRQ_MASK)'. * If PREEMPT_RT, '(get_preempt_count() & (NMI_MASK | HARDIRQ_MASK)) | (bpf_get_current_task_btf()->softirq_disable_cnt & SOFTIRQ_MASK)'. As for other archs, it can be added support by updating 'get_preempt_count()'. Suggested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com> Signed-off-by: Leon Hwang <leon.hwang@linux.dev> Link: https://lore.kernel.org/r/20250903140438.59517-2-leon.hwang@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-04selftests/bpf: Test kfunc bpf_strcasecmpRong Tao
Add testsuites for kfunc bpf_strcasecmp. Signed-off-by: Rong Tao <rongtao@cestc.cn> Link: https://lore.kernel.org/r/tencent_81A1A0ACC04B68158C57C4D151C46A832B07@qq.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-04selftests/bpf: add benchmark testing for kprobe-multi-allMenglong Dong
For now, the benchmark for kprobe-multi is single, which means there is only 1 function is hooked during testing. Add the testing "kprobe-multi-all", which will hook all the kernel functions during the benchmark. And the "kretprobe-multi-all" is added too. Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn> Link: https://lore.kernel.org/r/20250904021011.14069-4-dongml2@chinatelecom.cn Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-04selftests/bpf: skip recursive functions for kprobe_multiMenglong Dong
Some functions is recursive for the kprobe_multi and impact the benchmark results. So just skip them. Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn> Link: https://lore.kernel.org/r/20250904021011.14069-3-dongml2@chinatelecom.cn Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-04selftests/bpf: move get_ksyms and get_addrs to trace_helpers.cMenglong Dong
We need to get all the kernel function that can be traced sometimes, so we move the get_syms() and get_addrs() in kprobe_multi_test.c to trace_helpers.c and rename it to bpf_get_ksyms() and bpf_get_addrs(). Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn> Link: https://lore.kernel.org/r/20250904021011.14069-2-dongml2@chinatelecom.cn Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-04selftest: net: Fix weird setsockopt() in bind_bhash.c.Kuniyuki Iwashima
bind_bhash.c passes (SO_REUSEADDR | SO_REUSEPORT) to setsockopt(). In the asm-generic definition, the value happens to match with the bare SO_REUSEPORT, (2 | 15) == 15, but not on some arch. arch/alpha/include/uapi/asm/socket.h:18:#define SO_REUSEADDR 0x0004 arch/alpha/include/uapi/asm/socket.h:24:#define SO_REUSEPORT 0x0200 arch/mips/include/uapi/asm/socket.h:24:#define SO_REUSEADDR 0x0004 /* Allow reuse of local addresses. */ arch/mips/include/uapi/asm/socket.h:33:#define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */ arch/parisc/include/uapi/asm/socket.h:12:#define SO_REUSEADDR 0x0004 arch/parisc/include/uapi/asm/socket.h:18:#define SO_REUSEPORT 0x0200 arch/sparc/include/uapi/asm/socket.h:13:#define SO_REUSEADDR 0x0004 arch/sparc/include/uapi/asm/socket.h:20:#define SO_REUSEPORT 0x0200 include/uapi/asm-generic/socket.h:12:#define SO_REUSEADDR 2 include/uapi/asm-generic/socket.h:27:#define SO_REUSEPORT 15 Let's pass SO_REUSEPORT only. Fixes: c35ecb95c448 ("selftests/net: Add test for timing a bind request to a port with a populated bhash entry") Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250903222938.2601522-1-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-04vdso: Drop Kconfig GENERIC_VDSO_TIME_NSThomas Weißschuh
All architectures implementing time-related functionality in the vDSO are using the generic vDSO library which handles time namespaces properly. Remove the now unnecessary Kconfig symbol. Enables the use of time namespaces on architectures, which use the generic vDSO but did not enable GENERIC_VDSO_TIME_NS, namely MIPS and arm. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/all/20250826-vdso-cleanups-v1-10-d9b65750e49f@linutronix.de
2025-09-04selftests: netfilter: fix udpclash tool hangFlorian Westphal
Yi Chen reports that 'udpclash' loops forever depending on compiler (and optimization level used); while (x == 1) gets optimized into for (;;). Add volatile qualifier to avoid that. While at it, also run it under timeout(1) and fix the resize script to not ignore the timeout passed as second parameter to insert_flood. Reported-by: Yi Chen <yiche@redhat.com> Suggested-by: Yi Chen <yiche@redhat.com> Fixes: 78a588363587 ("selftests: netfilter: add conntrack clash resolution test case") Signed-off-by: Florian Westphal <fw@strlen.de>
2025-09-03selftests/bpf: Fix count write in testapp_xdp_metadata_copy()Ricardo B. Marlière
Commit 4b302092553c ("selftests/xsk: Add tail adjustment tests and support check") added a new global to xsk_xdp_progs.c, but left out the access in the testapp_xdp_metadata_copy() function. Since bpf_map_update_elem() will write to the whole bss section, it gets truncated. Fix by writing to skel_rx->bss->count directly. Fixes: 4b302092553c ("selftests/xsk: Add tail adjustment tests and support check") Signed-off-by: Ricardo B. Marlière <rbm@suse.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20250829-selftests-bpf-xsk_regression_fix-v1-1-5f5acdb9fe6b@suse.com
2025-09-03selftests/bpf: Upon failures, exit with code 1 in test_xsk.shRicardo B. Marlière
Currently, even if some subtests fails, the end result will still yield "ok 1 selftests: bpf: test_xsk.sh". Fix it by exiting with 1 if there are any failures. Signed-off-by: Ricardo B. Marlière <rbm@suse.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/bpf/20250828-selftests-bpf-test_xsk_ret-v1-1-e6656c01f397@suse.com
2025-09-03selftests: mptcp: add checks for fallback countersGang Yan
Recently, some mib counters about fallback has been added, this patch provides a method to check the expected behavior of these mib counters during the test execution. Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/571 Signed-off-by: Gang Yan <yangang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250902-net-next-mptcp-misc-feat-6-18-v2-2-fa02bb3188b1@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-02selftests: net: Add a selftest for VXLAN with FDB nexthop groupsIdo Schimmel
Add test cases for VXLAN with FDB nexthop groups, testing both IPv4 and IPv6. Test basic Tx functionality as well as some corner cases. Example output: # ./test_vxlan_nh.sh TEST: VXLAN FDB nexthop: IPv4 basic Tx [ OK ] TEST: VXLAN FDB nexthop: IPv6 basic Tx [ OK ] TEST: VXLAN FDB nexthop: learning [ OK ] TEST: VXLAN FDB nexthop: IPv4 proxy [ OK ] TEST: VXLAN FDB nexthop: IPv6 proxy [ OK ] Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://patch.msgid.link/20250901065035.159644-4-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-02selftests: net: avoid memory leakZongmin Zhou
The buffer be used without free,fix it to avoid memory leak. Signed-off-by: Zongmin Zhou <zhouzongmin@kylinos.cn> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250901054557.32811-1-min_halo@163.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-02selftests: drv-net: rss_ctx: make the test pass with few queuesJakub Kicinski
rss_ctx.test_rss_key_indir implicitly expects at least 5 queues, as it checks that the traffic on first 2 queues is lower than the remaining queues when we use all queues. Special case fewer queues. Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250901173139.881070-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-02selftests: drv-net: rss_ctx: use Netlink for timed reconfigJakub Kicinski
The rss_ctx test has gotten pretty flaky after I increased the queue count in NIPA 2->3. Not 100% clear why. We get a lot of failures in the rss_ctx.test_hitless_key_update case. Looking closer it appears that the failures are mostly due to startup costs. I measured the following timing for ethtool -X: - python cmd(shell=True) : 150-250msec - python cmd(shell=False) : 50- 70msec - timed in bash : 45- 55msec - YNL Netlink call : 2- 4msec - .set_rxfh callback : 1- 2msec The target in the test was set to 200msec. We were mostly measuring ethtool startup cost it seems. Switch to YNL since it's 100x faster. Lower the pass criteria to 150msec, no real science behind this number but we removed some overhead, drivers which previously passed 200msec should easily pass 150msec now. Separately we should probably follow up on defaulting to shell=False, when script doesn't explicitly ask for True, because the overhead is rather significant. Switch from _rss_key_rand() to random.randbytes(), YNL takes a binary array rather than array of ints. Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250901173139.881070-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-02selftests: net: py: don't default to shell=TrueJakub Kicinski
Overhead of using shell=True is quite significant. Micro-benchmark of running ethtool --help shows that non-shell run is 2x faster. Runtime of the XDP tests also shows improvement: this patch: 2m34s 2m21s 2m18s 2m18s before: 2m54s 2m36s 2m34s Reviewed-by: Breno Leitao <leitao@debian.org> Link: https://patch.msgid.link/20250830184317.696121-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-02selftests: drv-net: adjust tests before defaulting to shell=FalseJakub Kicinski
Clean up tests which expect shell=True without explicitly passing that param to cmd(). There seems to be only one such case, and in fact it's better converted to a direct write. Reviewed-by: Breno Leitao <leitao@debian.org> Link: https://patch.msgid.link/20250830184317.696121-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-02net: selftests: clean up tools/testing/selftests/net/lib/py/utils.pyBreno Leitao
This patch improves the utils.py module by removing unused imports (errno, random), simplifying the fd_read_timeout() function by eliminating unnecessary else clause, and cleaning up code style in the defer class constructor. Additionally, it renames the parameter in rand_port() from 'type' to 'stype' to avoid shadowing the built-in Python name 'type', improving code clarity and preventing potential issues. These changes enhance code readability and maintainability without affecting functionality. Signed-off-by: Breno Leitao <leitao@debian.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250901-fix-v1-1-df0abb67481e@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-02Merge tag 'mm-hotfixes-stable-2025-09-01-17-20' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "17 hotfixes. 13 are cc:stable and the remainder address post-6.16 issues or aren't considered necessary for -stable kernels. 11 of these fixes are for MM. This includes a three-patch series from Harry Yoo which fixes an intermittent boot failure which can occur on x86 systems. And a two-patch series from Alexander Gordeev which fixes a KASAN crash on S390 systems" * tag 'mm-hotfixes-stable-2025-09-01-17-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mm: fix possible deadlock in kmemleak x86/mm/64: define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings() mm: introduce and use {pgd,p4d}_populate_kernel() mm: move page table sync declarations to linux/pgtable.h proc: fix missing pde_set_flags() for net proc files mm: fix accounting of memmap pages mm/damon/core: prevent unnecessary overflow in damos_set_effective_quota() kexec: add KEXEC_FILE_NO_CMA as a legal flag kasan: fix GCC mem-intrinsic prefix with sw tags mm/kasan: avoid lazy MMU mode hazards mm/kasan: fix vmalloc shadow memory (de-)population races kunit: kasan_test: disable fortify string checker on kasan_strings() test selftests/mm: fix FORCE_READ to read input value correctly mm/userfaultfd: fix kmap_local LIFO ordering for CONFIG_HIGHPTE ocfs2: prevent release journal inode after journal shutdown rust: mm: mark VmaNew as transparent of_numa: fix uninitialized memory nodes causing kernel panic
2025-09-02selftests/proc: add tests for new pidns APIsAleksa Sarai
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com> Link: https://lore.kernel.org/20250805-procfs-pidns-api-v4-4-705f984940e7@cyphar.com Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-09-02selftests/fs/mount-notify: Fix compilation failure.Xing Guo
Commit c6d9775c2066 ("selftests/fs/mount-notify: build with tools include dir") introduces the struct __kernel_fsid_t to decouple dependency with headers_install. The commit forgets to define a macro for __kernel_fsid_t and it will cause type re-definition issue. Signed-off-by: Xing Guo <higuoxing@gmail.com> Link: https://lore.kernel.org/20250813031647.96411-1-higuoxing@gmail.com Acked-by: Amir Goldstein <amir73il@gmail.com> Closes: https://lore.kernel.org/oe-lkp/202508110628.65069d92-lkp@intel.com Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-09-01selftests: net: fix spelling and grammar mistakesPraveen Balakrishnan
Fix several spelling and grammatical mistakes in output messages from the net selftests to improve readability. Only the message strings for the test output have been modified. No changes to the functional logic of the tests have been made. Signed-off-by: Praveen Balakrishnan <praveen.balakrishnan@magd.ox.ac.uk> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250828211100.51019-1-praveen.balakrishnan@magd.ox.ac.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-01selftests: drv-net: csum: fix interface name for remote hostJakub Kicinski
Use cfg.remote_ifname for arguments of remote command. Without this UDP tests fail in NIPA where local interface is called enp1s0 and remote enp0s4. Fixes: 1d0dc857b5d8 ("selftests: drv-net: add checksum tests") Reviewed-by: Willem de Bruijn <willemb@google.com> Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Link: https://patch.msgid.link/20250830183842.688935-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-01selftests/nolibc: remove outdated comment about construct orderBenjamin Berg
The constructor order is not (and should not) be tested. Remove the comment. Fixes: a782d45c867c ("selftests/nolibc: stop testing constructor order") Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Link: https://lore.kernel.org/r/20250731201225.323254-3-benjamin@sipsolutions.net Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-09-01selftests/nolibc: fix EXPECT_NZ macroBenjamin Berg
The expect non-zero macro was incorrect and never used. Fix its definition. Fixes: 362aecb2d8cfa ("selftests/nolibc: add basic infrastructure to ease creation of nolibc tests") Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Link: https://lore.kernel.org/r/20250731201225.323254-2-benjamin@sipsolutions.net Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-09-01kselftest/arm64: tpidr2: Switch to waitpid() over wait4()Thomas Weißschuh
wait4() is deprecated, non-standard and about to be removed from nolibc. Switch to the equivalent waitpid() call. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Reviewed-by: Mark Brown <broonie@kernel.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/20250821-nolibc-enosys-v1-6-4b63f2caaa89@weissschuh.net
2025-09-01selftests/futex: Fix futex_wait() for 32bit ARMDan Carpenter
On 32bit ARM systems gcc-12 will use 32bit timestamps while gcc-13 and later will use 64bit timestamps. The problem is that SYS_futex will continue pointing at the 32bit system call. This makes the futex_wait test fail like this: waiter failed errno 110 not ok 1 futex_wake private returned: 0 Success waiter failed errno 110 not ok 2 futex_wake shared (page anon) returned: 0 Success waiter failed errno 110 not ok 3 futex_wake shared (file backed) returned: 0 Success Instead of compiling differently depending on the gcc version, use the -D_FILE_OFFSET_BITS=64 -D_TIME_BITS=64 options to ensure that 64bit timestamps are used. Then use ifdefs to make SYS_futex point to the 64bit system call. Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: André Almeida <andrealmeid@igalia.com> Tested-by: Anders Roxell <anders.roxell@linaro.org> Link: https://lore.kernel.org/20250827130011.677600-6-bigeasy@linutronix.de
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