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2025-04-16tools: ynl-gen: make sure we validate subtype of array-nestJakub Kicinski
ArrayNest AKA indexed-array support currently skips inner type validation. We count the attributes and then we parse them, make sure we call validate, too. Otherwise buggy / unexpected kernel response may lead to crashes. Fixes: be5bea1cc0bf ("net: add basic C code generators for Netlink") Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20250414211851.602096-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-16tools: ynl-gen: individually free previous values on double setJakub Kicinski
When user calls request_attrA_set() multiple times (for the same attribute), and attrA is of type which allocates memory - we try to free the previously associated values. For array types (including multi-attr) we have only freed the array, but the array may have contained pointers. Refactor the code generation for free attr and reuse the generated lines in setters to flush out the previous state. Since setters are static inlines in the header we need to add forward declarations for the free helpers of pure nested structs. Track which types get used by arrays and include the right forwad declarations. At least ethtool string set and bit set would not be freed without this. Tho, admittedly, overriding already set attribute twice is likely a very very rare thing to do. Fixes: be5bea1cc0bf ("net: add basic C code generators for Netlink") Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20250414211851.602096-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-16tools: ynl-gen: move local vars after the opening bracketJakub Kicinski
The "function writing helper" tries to put local variables between prototype and the opening bracket. Clearly wrong, but up until now nothing actually uses it to write local vars so it wasn't noticed. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20250414211851.602096-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-16tools: ynl-gen: don't declare loop iterator in placeJakub Kicinski
The codegen tries to follow the "old" C style and declare loop iterators at the start of the block / function. Only nested request handling breaks this style, so adjust it. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20250414211851.602096-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-15selftests: fib_rule_tests: Add VRF match testsIdo Schimmel
Add tests for FIB rules that match on iif / oif being a VRF device. Test both good and bad flows. With previous patch ("net: fib_rules: Fix iif / oif matching on L3 master device"): # ./fib_rule_tests.sh [...] Tests passed: 328 Tests failed: 0 Without it: # ./fib_rule_tests.sh [...] Tests passed: 324 Tests failed: 4 Signed-off-by: Ido Schimmel <idosch@nvidia.com> Acked-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20250414172022.242991-3-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-11selftests/tc-testing: Add test for echo of big TC filtersToke Høiland-Jørgensen
Add a selftest that checks whether the kernel can successfully echo a big tc filter, to test the fix introduced in commit: 369609fc6272 ("tc: Ensure we have enough buffer space when sending filter netlink notifications") Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Tested-by: Victor Nogueira <victor@mojatatu.com> Link: https://patch.msgid.link/20250410104322.214620-1-toke@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-10io_uring/zcrx: enable tcp-data-split in selftestDavid Wei
For bnxt when the agg ring is used then tcp-data-split is automatically reported to be enabled, but __net_mp_open_rxq() requires tcp-data-split to be explicitly enabled by the user. Enable tcp-data-split explicitly in io_uring zc rx selftest. Signed-off-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250409163153.2747918-1-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-10Merge tag 'net-6.15-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from netfilter. Current release - regressions: - core: hold instance lock during NETDEV_CHANGE - rtnetlink: fix bad unlock balance in do_setlink() - ipv6: - fix null-ptr-deref in addrconf_add_ifaddr() - align behavior across nexthops during path selection Previous releases - regressions: - sctp: prevent transport UaF in sendmsg - mptcp: only inc MPJoinAckHMacFailure for HMAC failures Previous releases - always broken: - sched: - make ->qlen_notify() idempotent - ensure sufficient space when sending filter netlink notifications - sch_sfq: really don't allow 1 packet limit - netfilter: fix incorrect avx2 match of 5th field octet - tls: explicitly disallow disconnect - eth: octeontx2-pf: fix VF root node parent queue priority" * tag 'net-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (38 commits) ethtool: cmis_cdb: Fix incorrect read / write length extension selftests: netfilter: add test case for recent mismatch bug nft_set_pipapo: fix incorrect avx2 match of 5th field octet net: ppp: Add bound checking for skb data on ppp_sync_txmung net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod. ipv6: Align behavior across nexthops during path selection net: phy: allow MDIO bus PM ops to start/stop state machine for phylink-controlled PHY net: phy: move phy_link_change() prior to mdio_bus_phy_may_suspend() selftests/tc-testing: sfq: check that a derived limit of 1 is rejected net_sched: sch_sfq: move the limit validation net_sched: sch_sfq: use a temporary work area for validating configuration net: libwx: handle page_pool_dev_alloc_pages error selftests: mptcp: validate MPJoin HMacFailure counters mptcp: only inc MPJoinAckHMacFailure for HMAC failures rtnetlink: Fix bad unlock balance in do_setlink(). net: ethtool: Don't call .cleanup_data when prepare_data fails tc: Ensure we have enough buffer space when sending filter netlink notifications net: libwx: Fix the wrong Rx descriptor field octeontx2-pf: qos: fix VF root node parent queue index selftests: tls: check that disconnect does nothing ...
2025-04-10Merge tag 'block-6.15-20250410' of git://git.kernel.dk/linuxLinus Torvalds
Pull block fixes from Jens Axboe: - Add a missing ublk selftest script, from test additions added last week - Two fixes for ublk error recovery and reissue - Cleanup of ublk argument passing * tag 'block-6.15-20250410' of git://git.kernel.dk/linux: ublk: pass ublksrv_ctrl_cmd * instead of io_uring_cmd * ublk: don't fail request for recovery & reissue in case of ubq->canceling ublk: fix handling recovery & reissue in ublk_abort_queue() selftests: ublk: fix test_stripe_04
2025-04-10selftests: netfilter: add test case for recent mismatch bugFlorian Westphal
Without 'nft_set_pipapo: fix incorrect avx2 match of 5th field octet" this fails: TEST: reported issues Add two elements, flush, re-add 1s [ OK ] net,mac with reload 0s [ OK ] net,port,proto 3s [ OK ] avx2 false match 0s [FAIL] False match for fe80:dead:01fe:0a02:0b03:6007:8009:a001 Other tests do not detect the kernel bug as they only alter parts in the /64 netmask. Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-04-09Merge tag 'linux_kselftest-fixes-6.15-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: - Fixes tpm2, futex, and mincore tests - Create a dedicated .gitignore for tpm2 tests * tag 'linux_kselftest-fixes-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/mincore: Allow read-ahead pages to reach the end of the file selftests/futex: futex_waitv wouldblock test should fail selftests: tpm2: test_smoke: use POSIX-conformant expression operator selftests: tpm2: create a dedicated .gitignore
2025-04-09selftests/tc-testing: sfq: check that a derived limit of 1 is rejectedOctavian Purdila
Because the limit is updated indirectly when other parameters are updated, there are cases where even though the user requests a limit of 2 it can actually be set to 1. Add the following test cases to check that the kernel rejects them: - limit 2 depth 1 flows 1 - limit 2 depth 1 divisor 1 Signed-off-by: Octavian Purdila <tavip@google.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-04-08Merge tag 'linux_kselftest-kunit-6.15-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kunit fixes from Shuah Khan: - Fix the tool to report test count in case of a late test plan when tests are specified before the test plan - Fix spelling error * tag 'linux_kselftest-kunit-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: kunit: Spelling s/slowm/slow/ kunit: tool: fix count of tests if late test plan
2025-04-08selftests: mptcp: validate MPJoin HMacFailure countersMatthieu Baerts (NGI0)
The parent commit fixes an issue around these counters where one of them -- MPJoinAckHMacFailure -- was wrongly incremented in some cases. This makes sure the counter is always 0. It should be incremented only in case of corruption, or a wrong implementation, which should not be the case in these selftests. 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/20250407-net-mptcp-hmac-failure-mib-v1-2-3c9ecd0a3a50@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-08selftests/mincore: Allow read-ahead pages to reach the end of the fileQiuxu Zhuo
When running the mincore_selftest on a system with an XFS file system, it failed the "check_file_mmap" test case due to the read-ahead pages reaching the end of the file. The failure log is as below: RUN global.check_file_mmap ... mincore_selftest.c:264:check_file_mmap:Expected i (1024) < vec_size (1024) mincore_selftest.c:265:check_file_mmap:Read-ahead pages reached the end of the file check_file_mmap: Test failed FAIL global.check_file_mmap This is because the read-ahead window size of the XFS file system on this machine is 4 MB, which is larger than the size from the #PF address to the end of the file. As a result, all the pages for this file are populated. blockdev --getra /dev/nvme0n1p5 8192 blockdev --getbsz /dev/nvme0n1p5 512 This issue can be fixed by extending the current FILE_SIZE 4MB to a larger number, but it will still fail if the read-ahead window size of the file system is larger enough. Additionally, in the real world, read-ahead pages reaching the end of the file can happen and is an expected behavior. Therefore, allowing read-ahead pages to reach the end of the file is a better choice for the "check_file_mmap" test case. Link: https://lore.kernel.org/r/20250311080940.21413-1-qiuxu.zhuo@intel.com Reported-by: Yi Lai <yi1.lai@intel.com> Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-04-08selftests/futex: futex_waitv wouldblock test should failEdward Liaw
Testcase should fail if -EWOULDBLOCK is not returned when expected value differs from actual value from the waiter. Link: https://lore.kernel.org/r/20250404221225.1596324-1-edliaw@google.com Fixes: 9d57f7c79748920636f8293d2f01192d702fe390 ("selftests: futex: Test sys_futex_waitv() wouldblock") Signed-off-by: Edward Liaw <edliaw@google.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: André Almeida <andrealmeid@igalia.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-04-08kunit: tool: fix count of tests if late test planRae Moar
Fix test count with late test plan. For example, TAP version 13 ok 1 test1 1..4 Returns a count of 1 passed, 1 crashed (because it expects tests after the test plan): returning the total count of 2 tests Change this to be 1 passed, 1 error: total count of 1 test Link: https://lore.kernel.org/r/20250319223351.1517262-1-rmoar@google.com Signed-off-by: Rae Moar <rmoar@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <shuah@kernel.org>
2025-04-08selftests: tpm2: test_smoke: use POSIX-conformant expression operatorAhmed Salem
Use POSIX-conformant expression operator symbol '='. The use of the non POSIX-conformant symbol '==' would work in bash, but not in sh where the unexpected operator error would result in test_smoke.sh being skipped. Instead of changing the shebang to use bash, which may not be available on all systems, use the POSIX-conformant expression symbol '=' to test for equality. Without this patch: =================== # make -j8 TARGETS=tpm2 kselftest # selftests: tpm2: test_smoke.sh # ./test_smoke.sh: 9: [: 2: unexpected operator ok 1 selftests: tpm2: test_smoke.sh # SKIP With this patch: ================ # make -j8 TARGETS=tpm2 kselftest # selftests: tpm2: test_smoke.sh # Ran 9 tests in 9.236s ok 1 selftests: tpm2: test_smoke.sh Link: https://lore.kernel.org/r/37ztyakgrrtgvec344mg7mspchwjpxxtsprtjidso3pwkmm4f4@awsa5mzgqmtb Signed-off-by: Ahmed Salem <x0rw3ll@gmail.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-04-08selftests: tpm2: create a dedicated .gitignoreKhaled Elnaggar
The tpm2 selftests produce two logs: SpaceTest.log and AsyncTest.log. Only SpaceTest.log was listed in selftests/.gitignore, while AsyncTest.log remained untracked. This change creates a dedicated .gitignore in the tpm2/ directory to manage these entries, keeping tpm2-specific patterns isolated from parent .gitignore. Fixed white-space errors during commit Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20250126195147.902608-1-khaledelnaggarlinux@gmail.com Signed-off-by: Khaled Elnaggar <khaledelnaggarlinux@gmail.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-04-08Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm fixes from Paolo Bonzini: "ARM: - Rework heuristics for resolving the fault IPA (HPFAR_EL2 v. re-walk stage-1 page tables) to align with the architecture. This avoids possibly taking an SEA at EL2 on the page table walk or using an architecturally UNKNOWN fault IPA - Use acquire/release semantics in the KVM FF-A proxy to avoid reading a stale value for the FF-A version - Fix KVM guest driver to match PV CPUID hypercall ABI - Use Inner Shareable Normal Write-Back mappings at stage-1 in KVM selftests, which is the only memory type for which atomic instructions are architecturally guaranteed to work s390: - Don't use %pK for debug printing and tracepoints x86: - Use a separate subclass when acquiring KVM's per-CPU posted interrupts wakeup lock in the scheduled out path, i.e. when adding a vCPU on the list of vCPUs to wake, to workaround a false positive deadlock. The schedule out code runs with a scheduler lock that the wakeup handler takes in the opposite order; but it does so with IRQs disabled and cannot run concurrently with a wakeup - Explicitly zero-initialize on-stack CPUID unions - Allow building irqbypass.ko as as module when kvm.ko is a module - Wrap relatively expensive sanity check with KVM_PROVE_MMU - Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses selftests: - Add more scenarios to the MONITOR/MWAIT test - Add option to rseq test to override /dev/cpu_dma_latency - Bring list of exit reasons up to date - Cleanup Makefile to list once tests that are valid on all architectures Other: - Documentation fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (26 commits) KVM: arm64: Use acquire/release to communicate FF-A version negotiation KVM: arm64: selftests: Explicitly set the page attrs to Inner-Shareable KVM: arm64: selftests: Introduce and use hardware-definition macros KVM: VMX: Use separate subclasses for PI wakeup lock to squash false positive KVM: VMX: Assert that IRQs are disabled when putting vCPU on PI wakeup list KVM: x86: Explicitly zero-initialize on-stack CPUID unions KVM: Allow building irqbypass.ko as as module when kvm.ko is a module KVM: x86/mmu: Wrap sanity check on number of TDP MMU pages with KVM_PROVE_MMU KVM: selftests: Add option to rseq test to override /dev/cpu_dma_latency KVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses Documentation: kvm: remove KVM_CAP_MIPS_TE Documentation: kvm: organize capabilities in the right section Documentation: kvm: fix some definition lists Documentation: kvm: drop "Capability" heading from capabilities Documentation: kvm: give correct name for KVM_CAP_SPAPR_MULTITCE Documentation: KVM: KVM_GET_SUPPORTED_CPUID now exposes TSC_DEADLINE selftests: kvm: list once tests that are valid on all architectures selftests: kvm: bring list of exit reasons up to date selftests: kvm: revamp MONITOR/MWAIT tests KVM: arm64: Don't translate FAR if invalid/unsafe ...
2025-04-08Merge tag 'cgroup-for-6.15-rc1-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup fixes from Tejun Heo: - A number of cpuset remote partition related fixes and cleanups along with selftest updates. - A change from this merge window made cgroup_rstat_updated_list() called outside cgroup_rstat_lock leading to list corruptions. Fix it by relocating the call inside the lock. * tag 'cgroup-for-6.15-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup/cpuset: Fix race between newly created partition and dying one cgroup: rstat: call cgroup_rstat_updated_list with cgroup_rstat_lock selftest/cgroup: Add a remote partition transition test to test_cpuset_prs.sh selftest/cgroup: Clean up and restructure test_cpuset_prs.sh selftest/cgroup: Update test_cpuset_prs.sh to use | as effective CPUs and state separator cgroup/cpuset: Remove unneeded goto in sched_partition_write() and rename it cgroup/cpuset: Code cleanup and comment update cgroup/cpuset: Don't allow creation of local partition over a remote one cgroup/cpuset: Remove remote_partition_check() & make update_cpumasks_hier() handle remote partition cgroup/cpuset: Fix error handling in remote_partition_disable() cgroup/cpuset: Fix incorrect isolated_cpus update in update_parent_effective_cpumask()
2025-04-08Merge tag 'crc-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux Pull CRC cleanups from Eric Biggers: "Finish cleaning up the CRC kconfig options by removing the remaining unnecessary prompts and an unnecessary 'default y', removing CONFIG_LIBCRC32C, and documenting all the CRC library options" * tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: lib/crc: remove CONFIG_LIBCRC32C lib/crc: document all the CRC library kconfig options lib/crc: remove unnecessary prompt for CONFIG_CRC_ITU_T lib/crc: remove unnecessary prompt for CONFIG_CRC_T10DIF lib/crc: remove unnecessary prompt for CONFIG_CRC16 lib/crc: remove unnecessary prompt for CONFIG_CRC_CCITT lib/crc: remove unnecessary prompt for CONFIG_CRC32 and drop 'default y'
2025-04-08Merge tag 'kvmarm-fixes-6.15-1' of ↵Paolo Bonzini
https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64: First batch of fixes for 6.15 - Rework heuristics for resolving the fault IPA (HPFAR_EL2 v. re-walk stage-1 page tables) to align with the architecture. This avoids possibly taking an SEA at EL2 on the page table walk or using an architecturally UNKNOWN fault IPA. - Use acquire/release semantics in the KVM FF-A proxy to avoid reading a stale value for the FF-A version. - Fix KVM guest driver to match PV CPUID hypercall ABI. - Use Inner Shareable Normal Write-Back mappings at stage-1 in KVM selftests, which is the only memory type for which atomic instructions are architecturally guaranteed to work.
2025-04-08selftests: tls: check that disconnect does nothingJakub Kicinski
"Inspired" by syzbot test, pre-queue some data, disconnect() and try to receive(). This used to trigger a warning in TLS's strp. Now we expect the disconnect() to have almost no effect. Link: https://lore.kernel.org/67e6be74.050a0220.2f068f.007e.GAE@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Link: https://patch.msgid.link/20250404180334.3224206-2-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-08selftests/tc-testing: Add a test case for FQ_CODEL with ETS parentCong Wang
Add a test case for FQ_CODEL with ETS parent to verify packet drop behavior when the queue becomes empty. This helps ensure proper notification mechanisms between qdiscs. Note this is best-effort, it is hard to play with those parameters perfectly to always trigger ->qlen_notify(). Cc: Pedro Tammela <pctammela@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Reviewed-by: Victor Nogueira <victor@mojatatu.com> Link: https://patch.msgid.link/20250403211636.166257-6-xiyou.wangcong@gmail.com Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-08selftests/tc-testing: Add a test case for FQ_CODEL with DRR parentCong Wang
Add a test case for FQ_CODEL with DRR parent to verify packet drop behavior when the queue becomes empty. This helps ensure proper notification mechanisms between qdiscs. Note this is best-effort, it is hard to play with those parameters perfectly to always trigger ->qlen_notify(). Cc: Pedro Tammela <pctammela@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Reviewed-by: Victor Nogueira <victor@mojatatu.com> Link: https://patch.msgid.link/20250403211636.166257-5-xiyou.wangcong@gmail.com Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-08selftests/tc-testing: Add a test case for FQ_CODEL with HFSC parentCong Wang
Add a test case for FQ_CODEL with HFSC parent to verify packet drop behavior when the queue becomes empty. This helps ensure proper notification mechanisms between qdiscs. Note this is best-effort, it is hard to play with those parameters perfectly to always trigger ->qlen_notify(). Cc: Pedro Tammela <pctammela@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Reviewed-by: Victor Nogueira <victor@mojatatu.com> Link: https://patch.msgid.link/20250403211636.166257-4-xiyou.wangcong@gmail.com Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-08selftests/tc-testing: Add a test case for FQ_CODEL with QFQ parentCong Wang
Add a test case for FQ_CODEL with QFQ parent to verify packet drop behavior when the queue becomes empty. This helps ensure proper notification mechanisms between qdiscs. Note this is best-effort, it is hard to play with those parameters perfectly to always trigger ->qlen_notify(). Cc: Pedro Tammela <pctammela@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Reviewed-by: Victor Nogueira <victor@mojatatu.com> Link: https://patch.msgid.link/20250403211636.166257-3-xiyou.wangcong@gmail.com Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-08selftests/tc-testing: Add a test case for FQ_CODEL with HTB parentCong Wang
Add a test case for FQ_CODEL with HTB parent to verify packet drop behavior when the queue becomes empty. This helps ensure proper notification mechanisms between qdiscs. Note this is best-effort, it is hard to play with those parameters perfectly to always trigger ->qlen_notify(). Cc: Pedro Tammela <pctammela@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Reviewed-by: Victor Nogueira <victor@mojatatu.com> Link: https://patch.msgid.link/20250403211636.166257-2-xiyou.wangcong@gmail.com Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-07selftests: drv-net: test random value for hds-threshTaehee Yoo
hds.py has been testing 0(set_hds_thresh_zero()), MAX(set_hds_thresh_max()), GT(set_hds_thresh_gt()) values for hds-thresh. However if a hds-thresh value was already 0, set_hds_thresh_zero() can't test properly. So, it tests random value first and then tests 0, MAX, GT values. Testing bnxt: TAP version 13 1..13 ok 1 hds.get_hds ok 2 hds.get_hds_thresh ok 3 hds.set_hds_disable # SKIP disabling of HDS not supported by the device ok 4 hds.set_hds_enable ok 5 hds.set_hds_thresh_random ok 6 hds.set_hds_thresh_zero ok 7 hds.set_hds_thresh_max ok 8 hds.set_hds_thresh_gt ok 9 hds.set_xdp ok 10 hds.enabled_set_xdp ok 11 hds.ioctl ok 12 hds.ioctl_set_xdp ok 13 hds.ioctl_enabled_set_xdp # Totals: pass:12 fail:0 xfail:0 xpass:0 skip:1 error:0 Testing lo: TAP version 13 1..13 ok 1 hds.get_hds # SKIP tcp-data-split not supported by device ok 2 hds.get_hds_thresh # SKIP hds-thresh not supported by device ok 3 hds.set_hds_disable # SKIP ring-set not supported by the device ok 4 hds.set_hds_enable # SKIP ring-set not supported by the device ok 5 hds.set_hds_thresh_random # SKIP hds-thresh not supported by device ok 6 hds.set_hds_thresh_zero # SKIP ring-set not supported by the device ok 7 hds.set_hds_thresh_max # SKIP hds-thresh not supported by device ok 8 hds.set_hds_thresh_gt # SKIP hds-thresh not supported by device ok 9 hds.set_xdp # SKIP tcp-data-split not supported by device ok 10 hds.enabled_set_xdp # SKIP tcp-data-split not supported by device ok 11 hds.ioctl # SKIP tcp-data-split not supported by device ok 12 hds.ioctl_set_xdp # SKIP tcp-data-split not supported by device ok 13 hds.ioctl_enabled_set_xdp # SKIP tcp-data-split not supported by device # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:13 error:0 Signed-off-by: Taehee Yoo <ap420073@gmail.com> Link: https://patch.msgid.link/20250404122126.1555648-3-ap420073@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-06tools/include: make uapi/linux/types.h usable from assemblyThomas Weißschuh
The "real" linux/types.h UAPI header gracefully degrades to a NOOP when included from assembly code. Mirror this behaviour in the tools/ variant. Test for __ASSEMBLER__ over __ASSEMBLY__ as the former is provided by the toolchain automatically. Reported-by: Mark Brown <broonie@kernel.org> Closes: https://lore.kernel.org/lkml/af553c62-ca2f-4956-932c-dd6e3a126f58@sirena.org.uk/ Fixes: c9fbaa879508 ("selftests: vDSO: parse_vdso: Use UAPI headers instead of libc headers") Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Link: https://patch.msgid.link/20250321-uapi-consistency-v1-1-439070118dc0@linutronix.de Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-04-06Merge tag 'turbostat-2025.05.06' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull turbostat updates from Len Brown: - support up to 8192 processors - add cpuidle governor debug telemetry, disabled by default - update default output to exclude cpuidle invocation counts - bug fixes * tag 'turbostat-2025.05.06' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: v2025.05.06 tools/power turbostat: disable "cpuidle" invocation counters, by default tools/power turbostat: re-factor sysfs code tools/power turbostat: Restore GFX sysfs fflush() call tools/power turbostat: Document GNR UncMHz domain convention tools/power turbostat: report CoreThr per measurement interval tools/power turbostat: Increase CPU_SUBSET_MAXCPUS to 8192 tools/power turbostat: Add idle governor statistics reporting tools/power turbostat: Fix names matching tools/power turbostat: Allow Zero return value for some RAPL registers tools/power turbostat: Clustered Uncore MHz counters should honor show/hide options
2025-04-06tools/power turbostat: v2025.05.06Len Brown
Support up to 8192 processors Add cpuidle governor debug telemetry, disabled by default Update default output to exclude cpuidle invocation counts Bug fixes Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06tools/power turbostat: disable "cpuidle" invocation counters, by defaultLen Brown
Create "pct_idle" counter group, the sofware notion of residency so it can now be singled out, independent of other counter groups. Create "cpuidle" group, the cpuidle invocation counts. Disable "cpuidle", by default. Create "swidle" = "cpuidle" + "pct_idle". Undocument "sysfs", the old name for "swidle", but keep it working for backwards compatibilty. Create "hwidle", all the HW idle counters Modify "idle", enabled by default "idle" = "hwidle" + "pct_idle" (and now excludes "cpuidle") Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06KVM: arm64: selftests: Explicitly set the page attrs to Inner-ShareableRaghavendra Rao Ananta
Atomic instructions such as 'ldset' in the guest have been observed to cause an EL1 data abort with FSC 0x35 (IMPLEMENTATION DEFINED fault (Unsupported Exclusive or Atomic access)) on Neoverse-N3. Per DDI0487L.a B2.2.6, atomic instructions are only architecturally guaranteed for Inner/Outer Shareable Normal Write-Back memory. For anything else the behavior is IMPLEMENTATION DEFINED and can lose atomicity, or, in this case, generate an abort. It would appear that selftests sets up the stage-1 mappings as Non Shareable, leading to the observed abort. Explicitly set the Shareability field to Inner Shareable for non-LPA2 page tables. Note that for the LPA2 page table format, translations for cacheable memory inherit the shareability attribute of the PTW, i.e. TCR_ELx.SH{0,1}. Suggested-by: Oliver Upton <oupton@google.com> Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Link: https://lore.kernel.org/r/20250405001042.1470552-3-rananta@google.com [oliver: Rephrase changelog] Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-04-06KVM: arm64: selftests: Introduce and use hardware-definition macrosRaghavendra Rao Ananta
The kvm selftest library for arm64 currently configures the hardware fields, such as shift and mask in the page-table entries and registers, directly with numbers. While it add comments at places, it's better to rewrite them with appropriate macros to improve the readability and reduce the risk of errors. Hence, introduce macros to define the hardware fields and use them in the arm64 processor library. Most of the definitions are primary copied from the Linux's header, arch/arm64/include/asm/pgtable-hwdef.h. No functional change intended. Suggested-by: Oliver Upton <oupton@google.com> Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> Link: https://lore.kernel.org/r/20250405001042.1470552-2-rananta@google.com Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-04-06tools/power turbostat: re-factor sysfs codeLen Brown
Probe cpuidle "sysfs" residency and counts separately, since soon we will make one disabled on, and the other disabled off. Clarify that some BIC (build-in-counters) are actually "groups". since we're about to re-name some of those groups. no functional change. Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06tools/power turbostat: Restore GFX sysfs fflush() callZhang Rui
Do fflush() to discard the buffered data, before each read of the graphics sysfs knobs. Fixes: ba99a4fc8c24 ("tools/power turbostat: Remove unnecessary fflush() call") Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06tools/power turbostat: Document GNR UncMHz domain conventionLen Brown
Document that on Intel Granite Rapids Systems, Uncore domains 0-2 are CPU domains, and uncore domains 3-4 are IO domains. Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06tools/power turbostat: report CoreThr per measurement intervalLen Brown
The CoreThr column displays total thermal throttling events since boot time. Change it to report events during the measurement interval. This is more useful for showing a user the current conditions. Total events since boot time are still available to the user via /sys/devices/system/cpu/cpu*/thermal_throttle/* Document CoreThr on turbostat.8 Fixes: eae97e053fe30 ("turbostat: Support thermal throttle count print") Reported-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Cc: Chen Yu <yu.c.chen@intel.com>
2025-04-06tools/power turbostat: Increase CPU_SUBSET_MAXCPUS to 8192Justin Ernst
On systems with >= 1024 cpus (in my case 1152), turbostat fails with the error output: "turbostat: /sys/fs/cgroup/cpuset.cpus.effective: cpu str malformat 0-1151" A similar error appears with the use of turbostat --cpu when the inputted cpu range contains a cpu number >= 1024: # turbostat -c 1100-1151 "--cpu 1100-1151" malformed ... Both errors are caused by parse_cpu_str() reaching its limit of CPU_SUBSET_MAXCPUS. It's a good idea to limit the maximum cpu number being parsed, but 1024 is too low. For a small increase in compute and allocated memory, increasing CPU_SUBSET_MAXCPUS brings support for parsing cpu numbers >= 1024. Increase CPU_SUBSET_MAXCPUS to 8192, a common setting for CONFIG_NR_CPUS on x86_64. Signed-off-by: Justin Ernst <justin.ernst@hpe.com> Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-05tracing/timers: Rename the hrtimer_init event to hrtimer_setupNam Cao
The function hrtimer_init() doesn't exist anymore. It was replaced by hrtimer_setup(). Thus, rename the hrtimer_init trace event to hrtimer_setup to keep it consistent. Signed-off-by: Nam Cao <namcao@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/all/cba84c3d853c5258aa3a262363a6eac08e2c7afc.1738746927.git.namcao@linutronix.de
2025-04-04lib/crc: remove unnecessary prompt for CONFIG_CRC_T10DIFEric Biggers
All modules that need CONFIG_CRC_T10DIF already select it, so there is no need to bother users about the option. Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: "Martin K. Petersen" <martin.petersen@oracle.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20250401221600.24878-5-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com>
2025-04-04Merge tag 'riscv-for-linus-6.15-mw1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: - The sub-architecture selection Kconfig system has been cleaned up, the documentation has been improved, and various detections have been fixed - The vector-related extensions dependencies are now validated when parsing from device tree and in the DT bindings - Misaligned access probing can be overridden via a kernel command-line parameter, along with various fixes to misalign access handling - Support for relocatable !MMU kernels builds - Support for hpge pfnmaps, which should improve TLB utilization - Support for runtime constants, which improves the d_hash() performance - Support for bfloat16, Zicbom, Zaamo, Zalrsc, Zicntr, Zihpm - Various fixes, including: - We were missing a secondary mmu notifier call when flushing the tlb which is required for IOMMU - Fix ftrace panics by saving the registers as expected by ftrace - Fix a couple of stimecmp usage related to cpu hotplug - purgatory_start is now aligned as per the STVEC requirements - A fix for hugetlb when calculating the size of non-present PTEs * tag 'riscv-for-linus-6.15-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (65 commits) riscv: Add norvc after .option arch in runtime const riscv: Make sure toolchain supports zba before using zba instructions riscv/purgatory: 4B align purgatory_start riscv/kexec_file: Handle R_RISCV_64 in purgatory relocator selftests: riscv: fix v_exec_initval_nolibc.c riscv: Fix hugetlb retrieval of number of ptes in case of !present pte riscv: print hartid on bringup riscv: Add norvc after .option arch in runtime const riscv: Remove CONFIG_PAGE_OFFSET riscv: Support CONFIG_RELOCATABLE on riscv32 asm-generic: Always define Elf_Rel and Elf_Rela riscv: Support CONFIG_RELOCATABLE on NOMMU riscv: Allow NOMMU kernels to access all of RAM riscv: Remove duplicate CONFIG_PAGE_OFFSET definition RISC-V: errata: Use medany for relocatable builds dt-bindings: riscv: document vector crypto requirements dt-bindings: riscv: add vector sub-extension dependencies dt-bindings: riscv: d requires f RISC-V: add f & d extension validation checks RISC-V: add vector crypto extension validation checks ...
2025-04-04Merge tag 'net-6.15-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from netfilter. Current release - regressions: - four fixes for the netdev per-instance locking Current release - new code bugs: - consolidate more code between existing Rx zero-copy and uring so that the latter doesn't miss / have to duplicate the safety checks Previous releases - regressions: - ipv6: fix omitted Netlink attributes when using SKIP_STATS Previous releases - always broken: - net: fix geneve_opt length integer overflow - udp: fix multiple wrap arounds of sk->sk_rmem_alloc when it approaches INT_MAX - dsa: mvpp2: add a lock to avoid corruption of the shared TCAM - dsa: airoha: fix issues with traffic QoS configuration / offload, and flow table offload Misc: - touch up the Netlink YAML specs of old families to make them usable for user space C codegen" * tag 'net-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (56 commits) selftests: net: amt: indicate progress in the stress test netlink: specs: rt_route: pull the ifa- prefix out of the names netlink: specs: rt_addr: pull the ifa- prefix out of the names netlink: specs: rt_addr: fix get multi command name netlink: specs: rt_addr: fix the spec format / schema failures net: avoid false positive warnings in __net_mp_close_rxq() net: move mp dev config validation to __net_mp_open_rxq() net: ibmveth: make veth_pool_store stop hanging arcnet: Add NULL check in com20020pci_probe() ipv6: Do not consider link down nexthops in path selection ipv6: Start path selection from the first nexthop usbnet:fix NPE during rx_complete net: octeontx2: Handle XDP_ABORTED and XDP invalid as XDP_DROP net: fix geneve_opt length integer overflow io_uring/zcrx: fix selftests w/ updated netdev Python helpers selftests: net: use netdevsim in netns test docs: net: document netdev notifier expectations net: dummy: request ops lock netdevsim: add dummy device notifiers net: rename rtnl_net_debug to lock_debug ...
2025-04-04selftests: net: amt: indicate progress in the stress testJakub Kicinski
Our CI expects output from the test at least once every 10 minutes. The AMT test when running on debug kernel is just on the edge of that time for the stress test. Improve the output: - print the name of the test first, before starting it, - output a dot every 10% of the way. Output after: TEST: amt discovery [ OK ] TEST: IPv4 amt multicast forwarding [ OK ] TEST: IPv6 amt multicast forwarding [ OK ] TEST: IPv4 amt traffic forwarding torture .......... [ OK ] TEST: IPv6 amt traffic forwarding torture .......... [ OK ] Reviewed-by: Taehee Yoo <ap420073@gmail.com> Link: https://patch.msgid.link/20250403145636.2891166-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-04netlink: specs: rt_addr: pull the ifa- prefix out of the namesJakub Kicinski
YAML specs don't normally include the C prefix name in the name of the YAML attr. Remove the ifa- prefix from all attributes in addr-attrs and specify name-prefix instead. This is a bit risky, hopefully there aren't many users out there. Fixes: dfb0f7d9d979 ("doc/netlink: Add spec for rt addr messages") Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250403013706.2828322-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-04netlink: specs: rt_addr: fix get multi command nameJakub Kicinski
Command names should match C defines, codegens may depend on it. Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Fixes: 4f280376e531 ("selftests/net: Add selftest for IPv4 RTM_GETMULTICAST support") Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250403013706.2828322-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-04Merge branch 'kvm-6.15-rc2-fixes' into HEADPaolo Bonzini
2025-04-04KVM: selftests: Add option to rseq test to override /dev/cpu_dma_latencySean Christopherson
Add a "-l <latency>" param to the rseq test so that the user can override /dev/cpu_dma_latency, as described by the test's suggested workaround for not being able to complete enough migrations. cpu_dma_latency is not a normal file, even as far as procfs files go. Writes to cpu_dma_latency only persist so long as the file is open, e.g. so that the kernel automatically reverts back to a power-optimized state once the sensitive workload completes. Provide the necessary functionality instead of effectively forcing the user to write a non-obvious wrapper. Cc: Dongsheng Zhang <dongsheng.x.zhang@intel.com> Cc: Zide Chen <zide.chen@intel.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-ID: <20250401142238.819487-1-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-31 15:27:55 +0000