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2025-09-11wireguard: selftests: remove CONFIG_SPARSEMEM_VMEMMAP=y from qemu kernel configDavid Hildenbrand
It's no longer user-selectable (and the default was already "y"), so let's just drop it. It was never really relevant to the wireguard selftests either way. Cc: Shuah Khan <shuah@kernel.org> Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Link: https://patch.msgid.link/20250910013644.4153708-4-Jason@zx2c4.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-11selftests: Replace sleep with slowwaitDavid Ahern
Replace the sleep in kill_procs with slowwait. Signed-off-by: David Ahern <dsahern@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250910025828.38900-2-dsahern@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-11selftests: Disable dad for ipv6 in fcnal-test.shDavid Ahern
Constrained test environment; duplicate address detection is not needed and causes races so disable it. Signed-off-by: David Ahern <dsahern@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250910025828.38900-1-dsahern@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.17-rc6). Conflicts: net/netfilter/nft_set_pipapo.c net/netfilter/nft_set_pipapo_avx2.c c4eaca2e1052 ("netfilter: nft_set_pipapo: don't check genbit from packetpath lookups") 84c1da7b38d9 ("netfilter: nft_set_pipapo: use avx2 algorithm for insertions too") Only trivial adjacent changes (in a doc and a Makefile). Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-12kmsan: convert kmsan_handle_dma to use physical addressesLeon Romanovsky
Convert the KMSAN DMA handling function from page-based to physical address-based interface. The refactoring renames kmsan_handle_dma() parameters from accepting (struct page *page, size_t offset, size_t size) to (phys_addr_t phys, size_t size). The existing semantics where callers are expected to provide only kmap memory is continued here. Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/r/3557cbaf66e935bc794f37d2b891ef75cbf2c80c.1757423202.git.leonro@nvidia.com
2025-09-11selftests/bpf: Add tests for arena fault reportingPuranjay Mohan
Add selftests for testing the reporting of arena page faults through BPF streams. Two new bpf programs are added that read and write to an unmapped arena address and the fault reporting is verified in the userspace through streams. The added bpf programs need to access the user_vm_start in struct bpf_arena, this is done by casting &arena to struct bpf_arena *, but barrier_var() is used on this ptr before accessing ptr->user_vm_start; to stop GCC from issuing an out-of-bound access due to the cast from smaller map struct to larger "struct bpf_arena" Signed-off-by: Puranjay Mohan <puranjay@kernel.org> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20250911145808.58042-7-puranjay@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-11selftests: bpf: use __stderr in stream error testsPuranjay Mohan
Start using __stderr directly in the bpf programs to test the reporting of may_goto timeout detection and spin_lock dead lock detection. Signed-off-by: Puranjay Mohan <puranjay@kernel.org> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20250911145808.58042-6-puranjay@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-11selftests: bpf: introduce __stderr and __stdoutPuranjay Mohan
Add __stderr and __stdout to validate the output of BPF streams for bpf selftests. Similar to __xlated, __jited, etc., __stderr/out can be used in the BPF progs to compare a string (regex supported) to the output in the bpf streams. Signed-off-by: Puranjay Mohan <puranjay@kernel.org> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20250911145808.58042-5-puranjay@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-11tools headers: Remove unused arm32 asm/kvm.h copyJames Clark
arm32 KVM was removed in commit 541ad0150ca4 ("arm: Remove 32bit KVM host support"). None of the kvm selftests are compiled for arm32 and it's not indirectly included from anywhere either, so delete it. Reviewed-by: Leo Yan <leo.yan@arm.com> Signed-off-by: James Clark <james.clark@linaro.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20250910-james-tools-header-cleanup-v1-2-7ae4bedc99e0@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2025-09-11tools headers: Remove unused kvm_perf.h copiesJames Clark
These have been unused since commit 162607ea20fa ("perf kvm/{x86,s390}: Remove dependency on uapi/kvm_perf.h") in favour of dynamic discovery. Remove the unused headers to reduce consistency checking overhead and noise. Signed-off-by: James Clark <james.clark@linaro.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Leo Yan <leo.yan@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20250910-james-tools-header-cleanup-v1-1-7ae4bedc99e0@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2025-09-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after rc5Alexei Starovoitov
Cross-merge BPF and other fixes after downstream PR. No conflicts. Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-11KVM: selftests: Add support for DIV and IDIV in the fastops testSean Christopherson
Extend the fastops test coverage to DIV and IDIV, specifically to provide coverage for #DE (divide error) exceptions, as #DE is the only exception that can occur in KVM's fastops path, i.e. that requires exception fixup. Link: https://lore.kernel.org/r/20250909202835.333554-5-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-09-11KVM: selftests: Dedup the gnarly constraints of the fastops tests (more macros!)Sean Christopherson
Add a fastop() macro along with macros to define its required constraints, and use the macros to dedup the innermost guts of the fastop testcases. No functional change intended. Link: https://lore.kernel.org/r/20250909202835.333554-4-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-09-11KVM: selftests: Add coverage for 'b' (byte) sized fastops emulationSean Christopherson
Extend the fastops test to cover instructions that operate on 8-bit data. Support for 8-bit instructions was omitted from the original commit purely due to complications with BT not having a r/m8 variant. To keep the RFLAGS.CF behavior deterministic and not heavily biased to '0' or '1', continue using BT, but cast and load the to-be-tested value into a dedicated 32-bit constraint. Supporting 8-bit operations will allow using guest_test_fastops() as-is to provide full coverage for DIV and IDIV. For divide operations, covering all operand sizes _is_ interesting, because KVM needs provide exception fixup for each size (failure to handle a #DE could panic the host). Link: https://lore.kernel.org/all/aIF7ZhWZxlkcpm4y@google.com Link: https://lore.kernel.org/r/20250909202835.333554-3-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-09-11KVM: selftests: Add support for #DE exception fixupSean Christopherson
Add support for handling #DE (divide error) exceptions in KVM selftests so that the fastops test can verify KVM correctly handles #DE when emulating DIV or IDIV on behalf of the guest. Morph #DE to 0xff (i.e. to -1) as a mostly-arbitrary vector to indicate #DE, so that '0' (the real #DE vector) can still be used to indicate "no exception". Link: https://lore.kernel.org/r/20250909202835.333554-2-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-09-11Merge tag 'net-6.17-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from CAN, netfilter and wireless. We have an IPv6 routing regression with the relevant fix still a WiP. This includes a last-minute revert to avoid more problems. Current release - new code bugs: - wifi: nl80211: completely disable per-link stats for now Previous releases - regressions: - dev_ioctl: take ops lock in hwtstamp lower paths - netfilter: - fix spurious set lookup failures - fix lockdep splat due to missing annotation - genetlink: fix genl_bind() invoking bind() after -EPERM - phy: transfer phy_config_inband() locking responsibility to phylink - can: xilinx_can: fix use-after-free of transmitted SKB - hsr: fix lock warnings - eth: - igb: fix NULL pointer dereference in ethtool loopback test - i40e: fix Jumbo Frame support after iPXE boot - macsec: sync features on RTM_NEWLINK Previous releases - always broken: - tunnels: reset the GSO metadata before reusing the skb - mptcp: make sync_socket_options propagate SOCK_KEEPOPEN - can: j1939: implement NETDEV_UNREGISTER notification hanidler - wifi: ath12k: fix WMI TLV header misalignment" * tag 'net-6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits) Revert "net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups" hsr: hold rcu and dev lock for hsr_get_port_ndev hsr: use hsr_for_each_port_rtnl in hsr_port_get_hsr hsr: use rtnl lock when iterating over ports wifi: nl80211: completely disable per-link stats for now net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups net: ethtool: fix wrong type used in struct kernel_ethtool_ts_info MAINTAINERS: add Phil as netfilter reviewer netfilter: nf_tables: restart set lookup on base_seq change netfilter: nf_tables: make nft_set_do_lookup available unconditionally netfilter: nf_tables: place base_seq in struct net netfilter: nft_set_rbtree: continue traversal if element is inactive netfilter: nft_set_pipapo: don't check genbit from packetpath lookups netfilter: nft_set_bitmap: fix lockdep splat due to missing annotation can: rcar_can: rcar_can_resume(): fix s2ram with PSCI can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB can: j1939: j1939_local_ecu_get(): undo increment when j1939_local_ecu_get() fails can: j1939: j1939_sk_bind(): call j1939_priv_put() immediately when j1939_local_ecu_get() failed can: j1939: implement NETDEV_UNREGISTER notification handler selftests: can: enable CONFIG_CAN_VCAN as a module ...
2025-09-11Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfLinus Torvalds
Pull bpf fixes from Alexei Starovoitov: "A number of fixes accumulated due to summer vacations - Fix out-of-bounds dynptr write in bpf_crypto_crypt() kfunc which was misidentified as a security issue (Daniel Borkmann) - Update the list of BPF selftests maintainers (Eduard Zingerman) - Fix selftests warnings with icecc compiler (Ilya Leoshkevich) - Disable XDP/cpumap direct return optimization (Jesper Dangaard Brouer) - Fix unexpected get_helper_proto() result in unusual configuration BPF_SYSCALL=y and BPF_EVENTS=n (Jiri Olsa) - Allow fallback to interpreter when JIT support is limited (KaFai Wan) - Fix rqspinlock and choose trylock fallback for NMI waiters. Pick the simplest fix. More involved fix is targeted bpf-next (Kumar Kartikeya Dwivedi) - Fix cleanup when tcp_bpf_send_verdict() fails to allocate psock->cork (Kuniyuki Iwashima) - Disallow bpf_timer in PREEMPT_RT for now. Proper solution is being discussed for bpf-next. (Leon Hwang) - Fix XSK cq descriptor production (Maciej Fijalkowski) - Tell memcg to use allow_spinning=false path in bpf_timer_init() to avoid lockup in cgroup_file_notify() (Peilin Ye) - Fix bpf_strnstr() to handle suffix match cases (Rong Tao)" * tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: selftests/bpf: Skip timer cases when bpf_timer is not supported bpf: Reject bpf_timer for PREEMPT_RT tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock->cork. bpf: Tell memcg to use allow_spinning=false path in bpf_timer_init() bpf: Allow fall back to interpreter for programs with stack size <= 512 rqspinlock: Choose trylock fallback for NMI waiters xsk: Fix immature cq descriptor production bpf: Update the list of BPF selftests maintainers selftests/bpf: Add tests for bpf_strnstr selftests/bpf: Fix "expression result unused" warnings with icecc bpf: Fix bpf_strnstr() to handle suffix match cases better selftests/bpf: Extend crypto_sanity selftest with invalid dst buffer bpf: Fix out-of-bounds dynptr write in bpf_crypto_crypt bpf: Check the helper function is valid in get_helper_proto bpf, cpumap: Disable page_pool direct xdp_return need larger scope
2025-09-11selftest:net: fixed spelling mistakesAndres Urian Florez
Fixed spelling errors in test_redirect6() error message and test_port_shadowing() comments Signed-off-by: Andres Urian Florez <andres.emb.sys@gmail.com> Reviewed-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Florian Westphal <fw@strlen.de>
2025-09-11selftests: traceroute: Add VRF testsIdo Schimmel
Create versions of the existing test cases where the routers generating the ICMP error messages are using VRFs. Check that the source IPs of these messages do not change in the presence of VRFs. IPv6 always behaved correctly, but IPv4 fails when reverting "ipv4: icmp: Fix source IP derivation in presence of VRFs". Without IPv4 change: # ./traceroute.sh TEST: IPv6 traceroute [ OK ] TEST: IPv6 traceroute with VRF [ OK ] TEST: IPv4 traceroute [ OK ] TEST: IPv4 traceroute with VRF [FAIL] traceroute did not return 1.0.3.1 $ echo $? 1 The test fails because the ICMP error message is sent with the VRF device's IP (1.0.4.1): # traceroute -n -s 1.0.1.3 1.0.2.4 traceroute to 1.0.2.4 (1.0.2.4), 30 hops max, 60 byte packets 1 1.0.4.1 0.165 ms 0.110 ms 0.103 ms 2 1.0.2.4 0.098 ms 0.085 ms 0.078 ms # traceroute -n -s 1.0.3.3 1.0.2.4 traceroute to 1.0.2.4 (1.0.2.4), 30 hops max, 60 byte packets 1 1.0.4.1 0.201 ms 0.138 ms 0.129 ms 2 1.0.2.4 0.123 ms 0.105 ms 0.098 ms With IPv4 change: # ./traceroute.sh TEST: IPv6 traceroute [ OK ] TEST: IPv6 traceroute with VRF [ OK ] TEST: IPv4 traceroute [ OK ] TEST: IPv4 traceroute with VRF [ OK ] $ echo $? 0 Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20250908073238.119240-9-idosch@nvidia.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-11selftests: traceroute: Test traceroute with different source IPsIdo Schimmel
When generating ICMP error messages, the kernel will prefer a source IP that is on the same subnet as the destination IP (see inet_select_addr()). Test this behavior by invoking traceroute with different source IPs and checking that the ICMP error message is generated with a source IP in the same subnet. Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20250908073238.119240-8-idosch@nvidia.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-11selftests: traceroute: Reword commentIdo Schimmel
Both of the addresses are configured as primary addresses, but the kernel is expected to choose 10.0.1.1/24 as the source IP of the ICMP error message since it is on the same subnet as the destination IP of the message (10.0.1.3/24). Reword the comment to reflect that. Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20250908073238.119240-7-idosch@nvidia.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-11selftests: traceroute: Use require_command()Ido Schimmel
Use require_command() so that the test will return SKIP (4) when a required command is not present. Before: # ./traceroute.sh SKIP: Could not run IPV6 test without traceroute6 SKIP: Could not run IPV4 test without traceroute $ echo $? 0 After: # ./traceroute.sh TEST: traceroute6 not installed [SKIP] $ echo $? 4 Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20250908073238.119240-6-idosch@nvidia.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-11selftests: traceroute: Return correct value on failureIdo Schimmel
The test always returns success even if some tests were modified to fail. Fix by converting the test to use the appropriate library functions instead of using its own functions. Before: # ./traceroute.sh TEST: IPV6 traceroute [FAIL] TEST: IPV4 traceroute [ OK ] Tests passed: 1 Tests failed: 1 $ echo $? 0 After: # ./traceroute.sh TEST: IPv6 traceroute [FAIL] traceroute6 did not return 2000:102::2 TEST: IPv4 traceroute [ OK ] $ echo $? 1 Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20250908073238.119240-5-idosch@nvidia.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-11selftests: net: Add tests to verify team driver option set and get.Marc Harvey
There are currently no kernel tests that verify setting and getting options of the team driver. In the future, options may be added that implicitly change other options, which will make it useful to have tests like these that show nothing breaks. There will be a follow up patch to this that adds new "rx_enabled" and "tx_enabled" options, which will implicitly affect the "enabled" option value and vice versa. The tests use teamnl to first set options to specific values and then gets them to compare to the set values. Signed-off-by: Marc Harvey <marcharvey@google.com> Link: https://patch.msgid.link/20250905040441.2679296-1-marcharvey@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-10Merge tag 'linux-can-fixes-for-6.17-20250910' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can Marc Kleine-Budde says: ==================== pull-request: can 2025-09-10 The 1st patch is by Alex Tran and fixes the Documentation of the struct bcm_msg_head. Davide Caratti's patch enabled the VCAN driver as a module for the Linux self tests. Tetsuo Handa contributes 3 patches that fix various problems in the CAN j1939 protocol. Anssi Hannula's patch fixes a potential use-after-free in the xilinx_can driver. Geert Uytterhoeven's patch fixes the rcan_can's suspend to RAM on R-Car Gen3 using PSCI. * tag 'linux-can-fixes-for-6.17-20250910' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can: can: rcar_can: rcar_can_resume(): fix s2ram with PSCI can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB can: j1939: j1939_local_ecu_get(): undo increment when j1939_local_ecu_get() fails can: j1939: j1939_sk_bind(): call j1939_priv_put() immediately when j1939_local_ecu_get() failed can: j1939: implement NETDEV_UNREGISTER notification handler selftests: can: enable CONFIG_CAN_VCAN as a module docs: networking: can: change bcm_msg_head frames member to support flexible array ==================== Link: https://patch.msgid.link/20250910162907.948454-1-mkl@pengutronix.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-10selftests: net: replace sleeps in fcnal-test with waitsJakub Kicinski
fcnal-test.sh already includes lib.sh, use relevant helpers instead of sleeping. Replace sleep after starting nettest as a server with wait_local_port_listen. Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20250909223837.863217-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-10tools: ynl: check for membership with 'not in'Matthieu Baerts (NGI0)
It is better to use 'not in' instead of 'not {element} in {collection}' according to Ruff. This is linked to Ruff error E713 [1]: Testing membership with {element} not in {collection} is more readable. Link: https://docs.astral.sh/ruff/rules/not-in-test/ [1] Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Asbjørn Sloth Tønnesen <ast@fiberby.net> Link: https://patch.msgid.link/20250909-net-next-ynl-ruff-v1-8-238c2bccdd99@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-10tools: ynl: use 'cond is None'Matthieu Baerts (NGI0)
It is better to use the 'is' keyword instead of comparing to None according to Ruff. This is linked to Ruff error E711 [1]: According to PEP 8, "Comparisons to singletons like None should always be done with is or is not, never the equality operators." Link: https://docs.astral.sh/ruff/rules/none-comparison/ [1] Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Asbjørn Sloth Tønnesen <ast@fiberby.net> Link: https://patch.msgid.link/20250909-net-next-ynl-ruff-v1-7-238c2bccdd99@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-10tools: ynl: remove unnecessary semicolonsMatthieu Baerts (NGI0)
These semicolons are not required according to Ruff. Simply remove them. This is linked to Ruff error E703 [1]: A trailing semicolon is unnecessary and should be removed. Link: https://docs.astral.sh/ruff/rules/useless-semicolon/ [1] Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Asbjørn Sloth Tønnesen <ast@fiberby.net> Link: https://patch.msgid.link/20250909-net-next-ynl-ruff-v1-6-238c2bccdd99@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-10tools: ynl: remove unused importsMatthieu Baerts (NGI0)
These imports are not used according to Ruff, and can be safely removed. This is linked to Ruff error F401 [1]: Unused imports add a performance overhead at runtime, and risk creating import cycles. They also increase the cognitive load of reading the code. There is one exception with 'YnlDocGenerator' which is added in __all__: it is used by ynl_gen_rst.py. Link: https://docs.astral.sh/ruff/rules/unused-import/ [1] Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Asbjørn Sloth Tønnesen <ast@fiberby.net> Link: https://patch.msgid.link/20250909-net-next-ynl-ruff-v1-5-238c2bccdd99@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-10tools: ynl: remove f-string without any placeholdersMatthieu Baerts (NGI0)
'f-strings' without any placeholders don't need to be marked as such according to Ruff. This 'f' can be safely removed. This is linked to Ruff error F541 [1]: f-strings are a convenient way to format strings, but they are not necessary if there are no placeholder expressions to format. In this case, a regular string should be used instead, as an f-string without placeholders can be confusing for readers, who may expect such a placeholder to be present. Link: https://docs.astral.sh/ruff/rules/f-string-missing-placeholders/ [1] Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Asbjørn Sloth Tønnesen <ast@fiberby.net> Link: https://patch.msgid.link/20250909-net-next-ynl-ruff-v1-4-238c2bccdd99@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-10tools: ynl: remove assigned but never used variableMatthieu Baerts (NGI0)
These variables are assigned but never used according to Ruff. They can then be safely removed. This is linked to Ruff error F841 [1]: A variable that is defined but not used is likely a mistake, and should be removed to avoid confusion. Link: https://docs.astral.sh/ruff/rules/unused-variable/ [1] Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Asbjørn Sloth Tønnesen <ast@fiberby.net> Link: https://patch.msgid.link/20250909-net-next-ynl-ruff-v1-3-238c2bccdd99@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-10tools: ynl: avoid bare exceptMatthieu Baerts (NGI0)
This 'except' was used without specifying the exception class according to Ruff. Here, only the ValueError class is expected and handled. This is linked to Ruff error E722 [1]: A bare except catches BaseException which includes KeyboardInterrupt, SystemExit, Exception, and others. Catching BaseException can make it hard to interrupt the program (e.g., with Ctrl-C) and can disguise other problems. Link: https://docs.astral.sh/ruff/rules/bare-except/ [1] Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Asbjørn Sloth Tønnesen <ast@fiberby.net> Link: https://patch.msgid.link/20250909-net-next-ynl-ruff-v1-2-238c2bccdd99@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-10tools: ynl: fix undefined variable nameMatthieu Baerts (NGI0)
This variable used in the error path was not defined according to Ruff. msg_format.attr_set is used instead, presumably the one that was supposed to be used originally. This is linked to Ruff error F821 [1]: An undefined name is likely to raise NameError at runtime. Fixes: 1769e2be4baa ("tools/net/ynl: Add 'sub-message' attribute decoding to ynl") Link: https://docs.astral.sh/ruff/rules/undefined-name/ [1] Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Asbjørn Sloth Tønnesen <ast@fiberby.net> Link: https://patch.msgid.link/20250909-net-next-ynl-ruff-v1-1-238c2bccdd99@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-10selftests/bpf: Skip timer cases when bpf_timer is not supportedLeon Hwang
When enable CONFIG_PREEMPT_RT, verifier will reject bpf_timer with returning -EOPNOTSUPP. Therefore, skip test cases when errno is EOPNOTSUPP. cd tools/testing/selftests/bpf ./test_progs -t timer 125 free_timer:SKIP 456 timer:SKIP 457/1 timer_crash/array:SKIP 457/2 timer_crash/hash:SKIP 457 timer_crash:SKIP 458 timer_lockup:SKIP 459 timer_mim:SKIP Summary: 5/0 PASSED, 6 SKIPPED, 0 FAILED Signed-off-by: Leon Hwang <leon.hwang@linux.dev> Link: https://lore.kernel.org/r/20250910125740.52172-3-leon.hwang@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-10selftests: can: enable CONFIG_CAN_VCAN as a moduleDavide Caratti
A proper kernel configuration for running kselftest can be obtained with: $ yes | make kselftest-merge Build of 'vcan' driver is currently missing, while the other required knobs are already there because of net/link_netns.py [1]. Add a config file in selftests/net/can to store the minimum set of kconfig needed for CAN selftests. [1] https://patch.msgid.link/20250219125039.18024-14-shaw.leon@gmail.com Fixes: 77442ffa83e8 ("selftests: can: Import tst-filter from can-tests") Reviewed-by: Vincent Mailhol <mailhol@kernel.org> Signed-off-by: Davide Caratti <dcaratti@redhat.com> Link: https://patch.msgid.link/fa4c0ea262ec529f25e5f5aa9269d84764c67321.1757516009.git.dcaratti@redhat.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2025-09-10cxl/acpi: Rename CFMW coherency restrictionsDavidlohr Bueso
ACPICA commit 710745713ad3a2543dbfb70e84764f31f0e46bdc This has been renamed in more recent CXL specs, as type3 (memory expanders) can also use HDM-DB for device coherent memory. Link: https://github.com/acpica/acpica/commit/710745713ad3a2543dbfb70e84764f31f0e46bdc Acked-by: Rafael J. Wysocki (Intel) <rafael@kernel.org> Signed-off-by: Davidlohr Bueso <dave@stgolabs.net> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Reviewed-by: Gregory Price <gourry@gourry.net> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Link: https://patch.msgid.link/20250908160034.86471-1-dave@stgolabs.net Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-09-09selftests: mptcp: join: allow more time to send ADD_ADDRMatthieu Baerts (NGI0)
When many ADD_ADDR need to be sent, it can take some time to send each of them, and create new subflows. Some CIs seem to occasionally have issues with these tests, especially with "debug" kernels. Two subtests will now run for a slightly longer time: the last two where 3 or more ADD_ADDR are sent during the test. Reviewed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250907-net-next-mptcp-add_addr-retrans-adapt-v1-3-824cc805772b@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-09selftests: mptcp: join: tolerate more ADD_ADDRMatthieu Baerts (NGI0)
ADD_ADDR can be retransmitted, and with, the parent commit, these retransmissions can be sent quicker: from 2 minutes to less than one second. To avoid false positives where retransmitted ADD_ADDR causes higher counters than expected, it is required to be more tolerant. Errors are now only reported when fewer ADD_ADDRs have been sent/received, except if no ADD_ADDR are expected. Before the parent commit, the tolerance was present for each tests where the ADD_ADDR could be retransmitted in a reasonable time (1 sec). Now that all tests can have retransmitted ADD_ADDR, it is normal to apply the same tolerance for all tests. An alternative could be to disable the ADD_ADDR retransmissions by default, but that's changing the default kernel behaviour. Plus, ADD_ADDR retransmissions can be required for some tests. To avoid adding exceptions to many tests, it seems better to increase the tolerance. Later, we could add a new MIB counter to identify the ADD_ADDR retransmissions, and remove the tolerance when this counter is available. Reviewed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250907-net-next-mptcp-add_addr-retrans-adapt-v1-2-824cc805772b@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-09selftests: mptcp: shellcheck: support v0.11.0Matthieu Baerts (NGI0)
This v0.11.0 version introduces SC2329: Warn when (non-escaping) functions are never invoked. Except that, similar to SC2317, ShellCheck is currently unable to figure out functions that are invoked via trap, or indirectly, when calling functions via variables. It is then needed to disable this new SC2329. Reviewed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250908-net-mptcp-misc-fixes-6-17-rc5-v1-3-5f2168a66079@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-09selftests: net: speed up pmtu.sh by avoiding unnecessary cleanupJakub Kicinski
The pmtu test takes nearly an hour when run on a debug kernel (10min on a normal kernel, so the debug slow down is quite significant). NIPA tries to ensure all results are delivered by a certain deadline so this prevents it from retrying the test in case of a flake. Looks like one of the slowest operations in the test is calling out to ./openvswitch/ovs-dpctl.py to remove potential leftover OvS interfaces. Check whether the interfaces exist in the first place in sysfs, since it can be done directly in bash it is very fast. This should save us around 20-30% of the test runtime. Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250906214535.3204785-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-09selftests: net: run groups from fcnal-test in parallelJakub Kicinski
fcnal-test.sh takes almost hour and a half to finish. The tests are already grouped into ipv4, ipv6 and other. Run those groups separately. Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20250908201021.270681-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-09selftests/bpf: Add tests for bpf_strnstrRong Tao
Add tests for bpf_strnstr(): bpf_strnstr("", "", 0) = 0 bpf_strnstr("hello world", "hello", 5) = 0 bpf_strnstr(str, "hello", 4) = -ENOENT bpf_strnstr("", "a", 0) = -ENOENT Signed-off-by: Rong Tao <rongtao@cestc.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/tencent_2ED218F8082565C95D86A804BDDA8DBA200A@qq.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-09selftests/bpf: Fix "expression result unused" warnings with iceccIlya Leoshkevich
icecc is a compiler wrapper that distributes compile jobs over a build farm [1]. It works by sending toolchain binaries and preprocessed source code to remote machines. Unfortunately using it with BPF selftests causes build failures due to a clang bug [2]. The problem is that clang suppresses the -Wunused-value warning if the unused expression comes from a macro expansion. Since icecc compiles preprocessed source code, this information is not available. This leads to -Wunused-value false positives. obj_new_no_struct() and obj_new_acq() use the bpf_obj_new() macro and discard the result. arena_spin_lock_slowpath() uses two macros that produce values and ignores the results. Add (void) casts to explicitly indicate that this is intentional and suppress the warning. An alternative solution is to change the macros to not produce values. This would work today for the arena_spin_lock_slowpath() issue, but in the future there may appear users who need them. Another potential solution is to replace these macros with functions. Unfortunately this would not work, because these macros work with unknown types and control flow. [1] https://github.com/icecc/icecream [2] https://github.com/llvm/llvm-project/issues/142614 Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20250829030017.102615-2-iii@linux.ibm.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-09selftests/bpf: Extend crypto_sanity selftest with invalid dst bufferDaniel Borkmann
Small cleanup and test extension to probe the bpf_crypto_{encrypt,decrypt}() kfunc when a bad dst buffer is passed in to assert that an error is returned. Also, encrypt_sanity() and skb_crypto_setup() were explicit to set the global status variable to zero before any test, so do the same for decrypt_sanity(). Do not explicitly zero the on-stack err before bpf_crypto_ctx_create() given the kfunc is expected to do it internally for the success case. Before kernel fix: # ./vmtest.sh -- ./test_progs -t crypto [...] [ 1.531200] bpf_testmod: loading out-of-tree module taints kernel. [ 1.533388] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel #87/1 crypto_basic/crypto_release:OK #87/2 crypto_basic/crypto_acquire:OK #87 crypto_basic:OK test_crypto_sanity:PASS:skel open 0 nsec test_crypto_sanity:PASS:ip netns add crypto_sanity_ns 0 nsec test_crypto_sanity:PASS:ip -net crypto_sanity_ns -6 addr add face::1/128 dev lo nodad 0 nsec test_crypto_sanity:PASS:ip -net crypto_sanity_ns link set dev lo up 0 nsec test_crypto_sanity:PASS:open_netns 0 nsec test_crypto_sanity:PASS:AF_ALG init fail 0 nsec test_crypto_sanity:PASS:if_nametoindex lo 0 nsec test_crypto_sanity:PASS:skb_crypto_setup fd 0 nsec test_crypto_sanity:PASS:skb_crypto_setup 0 nsec test_crypto_sanity:PASS:skb_crypto_setup retval 0 nsec test_crypto_sanity:PASS:skb_crypto_setup status 0 nsec test_crypto_sanity:PASS:create qdisc hook 0 nsec test_crypto_sanity:PASS:make_sockaddr 0 nsec test_crypto_sanity:PASS:attach encrypt filter 0 nsec test_crypto_sanity:PASS:encrypt socket 0 nsec test_crypto_sanity:PASS:encrypt send 0 nsec test_crypto_sanity:FAIL:encrypt status unexpected error: -5 (errno 95) #88 crypto_sanity:FAIL Summary: 1/2 PASSED, 0 SKIPPED, 1 FAILED After kernel fix: # ./vmtest.sh -- ./test_progs -t crypto [...] [ 1.540963] bpf_testmod: loading out-of-tree module taints kernel. [ 1.542404] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel #87/1 crypto_basic/crypto_release:OK #87/2 crypto_basic/crypto_acquire:OK #87 crypto_basic:OK #88 crypto_sanity:OK Summary: 2/2 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Cc: Vadim Fedorenko <vadim.fedorenko@linux.dev> Link: https://lore.kernel.org/r/20250829143657.318524-2-daniel@iogearbox.net Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-09docs: add tools/docs/gen-redirects.pyVegard Nossum
Add a new script and a new documentation 'make' target, htmldocs-redirects. This will generate HTML stub files in the HTML documentation output directory that redirect the browser to the new path. Suggested-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org> Suggested-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20250905144608.577449-4-vegard.nossum@oracle.com>
2025-09-09docs: add tools/docs/gen-renames.pyVegard Nossum
Add a new script that wraps git to trawl the repository history for renames of .rst files in the Documentation/ directory. Example usage: tools/docs/gen-renames.py --rev v6.17-rc3 > Documentation/.renames.txt The output format is simply: <old path> SPACE <new path> NEWLINE where neither <old path> nor <new path> contain the Documentation/ prefix or the .rst suffix. The file is sorted alphabetically. We can suggest rerunning the script for future renames (and squash the resulting change) or rerun it periodically to keep the file up to date. Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20250905144608.577449-2-vegard.nossum@oracle.com>
2025-09-09perf annotate: Fix title line after return from callNamhyung Kim
The second title line which shows symbol and DSO name is broken after moving to another function at 'callq' instruction. The ui_browser__show_title() is used for the first line which shows global sample count and event name so it doesn't change across the functions. What it needs after processing 'call' instruction is to update the second line onlly. Add a comment and call appropriate function. You can verify the change by pressing ENTER on a 'call' instruction and then ESC. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2025-09-09perf annotate: Factor out annotate_browser__show_function_title()Namhyung Kim
It'll be used in other places. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2025-09-09perf annotate: Fix signature of annotate_browser__show()Namhyung Kim
According to convention, the first argument should be 'struct annotate_browser' instead of 'struct ui_brwoser'. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20250908061050.27517-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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