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2025-11-10selftest: netcons: refactor target creationBreno Leitao
Extract the netconsole target creation from create_dynamic_target(), by moving it from create_dynamic_target() into a new helper function. This enables other tests to use the creation of netconsole targets with arbitrary parameters and no sleep. The new helper will be utilized by forthcoming torture-type selftests that require dynamic target management. Signed-off-by: Breno Leitao <leitao@debian.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20251107-netconsole_torture-v10-2-749227b55f63@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-10tools: ynl: call nested attribute free function for indexed arraysZahari Doychev
When freeing indexed arrays, the corresponding free function should be called for each entry of the indexed array. For example, for for 'struct tc_act_attrs' 'tc_act_attrs_free(...)' needs to be called for each entry. Previously, memory leaks were reported when enabling the ASAN analyzer. ================================================================= ==874==ERROR: LeakSanitizer: detected memory leaks Direct leak of 24 byte(s) in 1 object(s) allocated from: #0 0x7f221fd20cb5 in malloc ./debug/gcc/gcc/libsanitizer/asan/asan_malloc_linux.cpp:67 #1 0x55c98db048af in tc_act_attrs_set_options_vlan_parms ../generated/tc-user.h:2813 #2 0x55c98db048af in main ./linux/tools/net/ynl/samples/tc-filter-add.c:71 Direct leak of 24 byte(s) in 1 object(s) allocated from: #0 0x7f221fd20cb5 in malloc ./debug/gcc/gcc/libsanitizer/asan/asan_malloc_linux.cpp:67 #1 0x55c98db04a93 in tc_act_attrs_set_options_vlan_parms ../generated/tc-user.h:2813 #2 0x55c98db04a93 in main ./linux/tools/net/ynl/samples/tc-filter-add.c:74 Direct leak of 10 byte(s) in 2 object(s) allocated from: #0 0x7f221fd20cb5 in malloc ./debug/gcc/gcc/libsanitizer/asan/asan_malloc_linux.cpp:67 #1 0x55c98db0527d in tc_act_attrs_set_kind ../generated/tc-user.h:1622 SUMMARY: AddressSanitizer: 58 byte(s) leaked in 4 allocation(s). The following diff illustrates the changes introduced compared to the previous version of the code. void tc_flower_attrs_free(struct tc_flower_attrs *obj) { + unsigned int i; + free(obj->indev); + for (i = 0; i < obj->_count.act; i++) + tc_act_attrs_free(&obj->act[i]); free(obj->act); free(obj->key_eth_dst); free(obj->key_eth_dst_mask); Signed-off-by: Zahari Doychev <zahari.doychev@linux.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://patch.msgid.link/20251106151529.453026-3-zahari.doychev@linux.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-10selftests/tracing: Run sample events to clear page cache eventsSteven Rostedt
The tracing selftest "event-filter-function.tc" was failing because it first runs the "sample_events" function that triggers the kmem_cache_free event and it looks at what function was used during a call to "ls". But the first time it calls this, it could trigger events that are used to pull pages into the page cache. The rest of the test uses the function it finds during that call to see if it will be called in subsequent "sample_events" calls. But if there's no need to pull pages into the page cache, it will not trigger that function and the test will fail. Call the "sample_events" twice to trigger all the page cache work before it calls it to find a function to use in subsequent checks. Cc: stable@vger.kernel.org Fixes: eb50d0f250e96 ("selftests/ftrace: Choose target function for filter test from samples") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-11-10selftests/tc-testing: Create tests trying to add children to clsact/ingress ↵Victor Nogueira
qdiscs In response to Wang's bug report [1], add the following test cases: - Try and fail to add an fq child to an ingress qdisc - Try and fail to add an fq child to a clsact qdisc [1] https://lore.kernel.org/netdev/20251105022213.1981982-1-wangliang74@huawei.com/ Reviewed-by: Pedro Tammela <pctammela@mojatatu.ai> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Victor Nogueira <victor@mojatatu.com> Reviewed-by: Cong Wang <cwang@multikernel.io> Link: https://patch.msgid.link/20251106205621.3307639-2-victor@mojatatu.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-10bpf/selftests: Add selftest for bpf_smc_hs_ctrlD. Wythe
This tests introduces a tiny smc_hs_ctrl for filtering SMC connections based on IP pairs, and also adds a realistic topology model to verify it. Also, we can only use SMC loopback under CI test, so an additional configuration needs to be enabled. Follow the steps below to run this test. make -C tools/testing/selftests/bpf cd tools/testing/selftests/bpf sudo ./test_progs -t smc Results shows: Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: D. Wythe <alibuda@linux.alibaba.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Tested-by: Saket Kumar Bhaskar <skb99@linux.ibm.com> Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev> Link: https://patch.msgid.link/20251107035632.115950-4-alibuda@linux.alibaba.com
2025-11-10tools/docs/get_abi.py: fix get_abi library directoryMauro Carvalho Chehab
changeset a5dd93016f20 ("docs: move get_abi.py to tools/docs") moved the script location, but didn't update library location, causing it to fail. Fixes: a5dd93016f20 ("docs: move get_abi.py to tools/docs") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <3839bc4db2d5c7e14dd2686876a2c7b5d72a46cd.1762523688.git.mchehab+huawei@kernel.org>
2025-11-10selftests/bpf: Cover skb metadata access after bpf_skb_change_protoJakub Sitnicki
Add a test to verify that skb metadata remains accessible after calling bpf_skb_change_proto(), which modifies packet headroom to accommodate different IP header sizes. Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20251105-skb-meta-rx-path-v4-16-5ceb08a9b37b@cloudflare.com
2025-11-10selftests/bpf: Cover skb metadata access after change_head/tail helperJakub Sitnicki
Add a test to verify that skb metadata remains accessible after calling bpf_skb_change_head() and bpf_skb_change_tail(), which modify packet headroom/tailroom and can trigger head reallocation. Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20251105-skb-meta-rx-path-v4-15-5ceb08a9b37b@cloudflare.com
2025-11-10selftests/bpf: Cover skb metadata access after bpf_skb_adjust_roomJakub Sitnicki
Add a test to verify that skb metadata remains accessible after calling bpf_skb_adjust_room(), which modifies the packet headroom and can trigger head reallocation. The helper expects an Ethernet frame carrying an IP packet so switch test packet identification by source MAC address since we can no longer rely on Ethernet proto being set to zero. Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20251105-skb-meta-rx-path-v4-14-5ceb08a9b37b@cloudflare.com
2025-11-10selftests/bpf: Cover skb metadata access after vlan push/pop helperJakub Sitnicki
Add a test to verify that skb metadata remains accessible after calling bpf_skb_vlan_push() and bpf_skb_vlan_pop(), which modify the packet headroom. Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20251105-skb-meta-rx-path-v4-13-5ceb08a9b37b@cloudflare.com
2025-11-10selftests/bpf: Expect unclone to preserve skb metadataJakub Sitnicki
Since pskb_expand_head() no longer clears metadata on unclone, update tests for cloned packets to expect metadata to remain intact. Also simplify the clone_dynptr_kept_on_{data,meta}_slice_write tests. Creating an r/w dynptr slice is sufficient to trigger an unclone in the prologue, so remove the extraneous writes to the data/meta slice. Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20251105-skb-meta-rx-path-v4-12-5ceb08a9b37b@cloudflare.com
2025-11-10selftests/bpf: Dump skb metadata on verification failureJakub Sitnicki
Add diagnostic output when metadata verification fails to help with troubleshooting test failures. Introduce a check_metadata() helper that prints both expected and received metadata to the BPF program's stderr stream on mismatch. The userspace test reads and dumps this stream on failure. Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20251105-skb-meta-rx-path-v4-11-5ceb08a9b37b@cloudflare.com
2025-11-10selftests/bpf: Verify skb metadata in BPF instead of userspaceJakub Sitnicki
Move metadata verification into the BPF TC programs. Previously, userspace read metadata from a map and verified it once at test end. Now TC programs compare metadata directly using __builtin_memcmp() and set a test_pass flag. This enables verification at multiple points during test execution rather than a single final check. Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20251105-skb-meta-rx-path-v4-10-5ceb08a9b37b@cloudflare.com
2025-11-10Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm fixes from Paolo Bonzini: "Arm: - Fix trapping regression when no in-kernel irqchip is present - Check host-provided, untrusted ranges and offsets in pKVM - Fix regression restoring the ID_PFR1_EL1 register - Fix vgic ITS locking issues when LPIs are not directly injected Arm selftests: - Correct target CPU programming in vgic_lpi_stress selftest - Fix exposure of SCTLR2_EL2 and ZCR_EL2 in get-reg-list selftest RISC-V: - Fix check for local interrupts on riscv32 - Read HGEIP CSR on the correct cpu when checking for IMSIC interrupts - Remove automatic I/O mapping from kvm_arch_prepare_memory_region() x86: - Inject #UD if the guest attempts to execute SEAMCALL or TDCALL as KVM doesn't support virtualization the instructions, but the instructions are gated only by VMXON. That is, they will VM-Exit instead of taking a #UD and until now this resulted in KVM exiting to userspace with an emulation error. - Unload the "FPU" when emulating INIT of XSTATE features if and only if the FPU is actually loaded, instead of trying to predict when KVM will emulate an INIT (CET support missed the MP_STATE path). Add sanity checks to detect and harden against similar bugs in the future. - Unregister KVM's GALog notifier (for AVIC) when kvm-amd.ko is unloaded. - Use a raw spinlock for svm->ir_list_lock as the lock is taken during schedule(), and "normal" spinlocks are sleepable locks when PREEMPT_RT=y. - Remove guest_memfd bindings on memslot deletion when a gmem file is dying to fix a use-after-free race found by syzkaller. - Fix a goof in the EPT Violation handler where KVM checks the wrong variable when determining if the reported GVA is valid. - Fix and simplify the handling of LBR virtualization on AMD, which was made buggy and unnecessarily complicated by nested VM support Misc: - Update Oliver's email address" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (28 commits) KVM: nSVM: Fix and simplify LBR virtualization handling with nested KVM: nSVM: Always recalculate LBR MSR intercepts in svm_update_lbrv() KVM: SVM: Mark VMCB_LBR dirty when MSR_IA32_DEBUGCTLMSR is updated MAINTAINERS: Switch myself to using kernel.org address KVM: arm64: vgic-v3: Release reserved slot outside of lpi_xa's lock KVM: arm64: vgic-v3: Reinstate IRQ lock ordering for LPI xarray KVM: arm64: Limit clearing of ID_{AA64PFR0,PFR1}_EL1.GIC to userspace irqchip KVM: arm64: Set ID_{AA64PFR0,PFR1}_EL1.GIC when GICv3 is configured KVM: arm64: Make all 32bit ID registers fully writable KVM: VMX: Fix check for valid GVA on an EPT violation KVM: guest_memfd: Remove bindings on memslot deletion when gmem is dying KVM: SVM: switch to raw spinlock for svm->ir_list_lock KVM: SVM: Make avic_ga_log_notifier() local to avic.c KVM: SVM: Unregister KVM's GALog notifier on kvm-amd.ko exit KVM: SVM: Initialize per-CPU svm_data at the end of hardware setup KVM: x86: Call out MSR_IA32_S_CET is not handled by XSAVES KVM: x86: Harden KVM against imbalanced load/put of guest FPU state KVM: x86: Unload "FPU" state on INIT if and only if its currently in-use KVM: arm64: Check the untrusted offset in FF-A memory share KVM: arm64: Check range args for pKVM mem transitions ...
2025-11-10selftests/namespaces: test for efaultChristian Brauner
Ensure that put_user() can fail and that namespace cleanup works correctly. Link: https://patch.msgid.link/20251109-namespace-6-19-fixes-v1-8-ae8a4ad5a3b3@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-11-10tools/objtool: Copy the __cleanup unused variable fix for older clangBorislav Petkov (AMD)
Copy from 54da6a092431 ("locking: Introduce __cleanup() based infrastructure") the bits which mark the variable with a cleanup attribute unused so that my clang 15 can dispose of it properly instead of warning that it is unused which then fails the build due to -Werror. Suggested-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20251031114919.GBaQSiPxZrziOs3RCW@fat_crate.local
2025-11-10selftests/namespaces: add active reference count regression testChristian Brauner
Add a regression test for setns() with pidfd. Link: https://patch.msgid.link/20251109-namespace-6-19-fixes-v1-7-ae8a4ad5a3b3@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-11-09perf test: Add test that command line period overrides sysfs/json valuesIan Rogers
The behavior of weak terms is subtle, add a test that they aren't accidentally broken. The test finds an event with a weak 'period' and then overrides it. In no such event is present then the test skips. Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-11-09perf pmu: Make pmu_alias_terms weak againIan Rogers
The terms for a json event should be weak so they don't override command line options. Before: ``` $ perf record -vv -c 1000 -e uops_issued.any -o /dev/null true 2>&1 |grep "{ sample_period, sample_freq }" { sample_period, sample_freq } 200003 { sample_period, sample_freq } 2000003 { sample_period, sample_freq } 1000 ``` After: ``` $ perf record -vv -c 1000 -e uops_issued.any -o /dev/null true 2>&1 |grep "{ sample_period, sample_freq }" { sample_period, sample_freq } 1000 { sample_period, sample_freq } 1000 { sample_period, sample_freq } 1000 ``` Fixes: 84bae3af20d0 ("perf pmu: Don't eagerly parse event terms") Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-11-09tools/nolibc: avoid using plain integer as NULL pointerThomas Weißschuh
While an integer zero is a valid NULL pointer as per the C standard, sparse will complain about it. Use explicit NULL pointers instead. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/r/202509261452.g5peaXCc-lkp@intel.com/ Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Acked-by: Willy Tarreau <w@1wt.eu>
2025-11-09Merge tag 'kvmarm-fixes-6.18-2' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm654 fixes for 6.18, take #2 * Core fixes - Fix trapping regression when no in-kernel irqchip is present (20251021094358.1963807-1-sascha.bischoff@arm.com) - Check host-provided, untrusted ranges and offsets in pKVM (20251016164541.3771235-1-vdonnefort@google.com) (20251017075710.2605118-1-sebastianene@google.com) - Fix regression restoring the ID_PFR1_EL1 register (20251030122707.2033690-1-maz@kernel.org - Fix vgic ITS locking issues when LPIs are not directly injected (20251107184847.1784820-1-oupton@kernel.org) * Test fixes - Correct target CPU programming in vgic_lpi_stress selftest (20251020145946.48288-1-mdittgen@amazon.de) - Fix exposure of SCTLR2_EL2 and ZCR_EL2 in get-reg-list selftest (20251023-b4-kvm-arm64-get-reg-list-sctlr-el2-v1-1-088f88ff992a@kernel.org) (20251024-kvm-arm64-get-reg-list-zcr-el2-v1-1-0cd0ff75e22f@kernel.org) * Misc - Update Oliver's email address (20251107012830.1708225-1-oupton@kernel.org)
2025-11-08tools/nolibc: add support for fchdir()Thomas Weißschuh
Add support for the file descriptor based variant of chdir(). Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Acked-by: Willy Tarreau <w@1wt.eu> Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-11-07selftests: drv-net: psp: add assertions on core-tracked psp dev statsDaniel Zahka
Add assertions to existing test cases to cover key rotations and 'stale-events'. Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20251106002608.1578518-3-daniel.zahka@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-07selftests: net: local_termination: Wait for interfaces to come upAlexander Sverdlin
It seems that most of the tests prepare the interfaces once before the test run (setup_prepare()), rely on setup_wait() to wait for link and only then run the test(s). local_termination brings the physical interfaces down and up during test run but never wait for them to come up. If the auto-negotiation takes some seconds, first test packets are being lost, which leads to false-negative test results. Use setup_wait() in run_test() to make sure auto-negotiation has been completed after all simple_if_init() calls on physical interfaces and test packets will not be lost because of the race against link establishment. Fixes: 90b9566aa5cd3f ("selftests: forwarding: add a test for local_termination.sh") Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com> Link: https://patch.msgid.link/20251106161213.459501-1-alexander.sverdlin@siemens.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-07selftest: packetdrill: Add max RTO test for SYN+ACK.Kuniyuki Iwashima
This script sets net.ipv4.tcp_rto_max_ms to 1000 and checks if SYN+ACK RTO is capped at 1s for TFO and non-TFO. Without the previous patch, the max RTO is applied to TFO SYN+ACK only, and non-TFO SYN+ACK RTO increases exponentially. # selftests: net/packetdrill: tcp_rto_synack_rto_max.pkt # TAP version 13 # 1..2 # tcp_rto_synack_rto_max.pkt:46: error handling packet: timing error: expected outbound packet at 5.091936 sec but happened at 6.107826 sec; tolerance 0.127974 sec # script packet: 5.091936 S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK> # actual packet: 6.107826 S. 0:0(0) ack 1 win 65535 <mss 1460,nop,nop,sackOK> # not ok 1 ipv4 # tcp_rto_synack_rto_max.pkt:46: error handling packet: timing error: expected outbound packet at 5.075901 sec but happened at 6.091841 sec; tolerance 0.127976 sec # script packet: 5.075901 S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK> # actual packet: 6.091841 S. 0:0(0) ack 1 win 65535 <mss 1460,nop,nop,sackOK> # not ok 2 ipv6 # # Totals: pass:0 fail:2 xfail:0 xpass:0 skip:0 error:0 not ok 49 selftests: net/packetdrill: tcp_rto_synack_rto_max.pkt # exit=1 With the previous patch, all SYN+ACKs are retransmitted after 1s. # selftests: net/packetdrill: tcp_rto_synack_rto_max.pkt # TAP version 13 # 1..2 # ok 1 ipv4 # ok 2 ipv6 # # Totals: pass:2 fail:0 xfail:0 xpass:0 skip:0 error:0 ok 49 selftests: net/packetdrill: tcp_rto_synack_rto_max.pkt Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20251106003357.273403-7-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-07perf tool: Add a delegate_tool that just delegates actions to another toolIan Rogers
Add an ability to be able to compose perf_tools, by having one perform an action and then calling a delegate. Currently the perf_tools have if-then-elses setting the callback and then if-then-elses within the callback. Understanding the behavior is complex as it is in two places and logic for numerous operations, within things like perf inject, is interwoven. By chaining perf_tools together based on command line options this kind of code can be avoided. Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-11-07perf tool: Add the perf_tool argument to all callbacksIan Rogers
Getting context for what a tool is doing, such as the perf_inject instance, using container_of the tool is a common pattern in the code. This isn't possible event_op2, event_op3 and event_op4 callbacks as the tool isn't passed. Add the argument and then fix function signatures to match. As tools maybe reading a tool from somewhere else, change that code to use the passed in tool. Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-11-07Merge tag 'for-linus-iommufd' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd Pull iommufd fixes from Jason Gunthorpe: - Syzkaller found a case where maths overflows can cause divide by 0 - Typo in a compiler bug warning fix in the selftests broke the selftests - type1 compatability had a mismatch when unmapping an already unmapped range, it should succeed * tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd: iommufd: Make vfio_compat's unmap succeed if the range is already empty iommufd/selftest: Fix ioctl return value in _test_cmd_trigger_vevents() iommufd: Don't overflow during division for dirty tracking
2025-11-07kselftest/arm64: Align zt-test register dumpsMark Rutland
The zt-test output is awkward to read, as the 'Expected' value isn't dumped on its own line and isn't aligned with the 'Got' value beneath. For example: Mismatch: PID=5281, iteration=3270249 Expected [00a1146901a1146902a1146903a1146904a1146905a1146906a1146907a1146908a1146909a114690aa114690ba114690ca114690da114690ea114690fa11469] Got [00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] SVCR: 2 Add a newline, matching the other FPSIMD/SVE/SME tests, so that we get output that can be read more easily: Mismatch: PID=5281, iteration=3270249 Expected [00a1146901a1146902a1146903a1146904a1146905a1146906a1146907a1146908a1146909a114690aa114690ba114690ca114690da114690ea114690fa11469] Got [00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] SVCR: 2 Admittedly this isn't all that important when the 'Got' value is all zeroes, but otherwise this would be a major help for identifying which portion of the 'Got' value is not as expected. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Mark Brown <broonie@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kselftest@vger.kernel.org Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-11-07Merge tag 'trace-v6.18-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing fixes from Steven Rostedt: - Check for reader catching up in ring_buffer_map_get_reader() If the reader catches up to the writer in the memory mapped ring buffer then calling rb_get_reader_page() will return NULL as there's no pages left. But this isn't checked for before calling rb_get_reader_page() and the return of NULL causes a warning. If it is detected that the reader caught up to the writer, then simply exit the routine - Fix memory leak in histogram create_field_var() The couple of the error paths in create_field_var() did not properly clean up what was allocated. Make sure everything is freed properly on error - Fix help message of tools latency_collector The help message incorrectly stated that "-t" was the same as "--threads" whereas "--threads" is actually represented by "-e" * tag 'trace-v6.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing/tools: Fix incorrcet short option in usage text for --threads tracing: Fix memory leaks in create_field_var() ring-buffer: Do not warn in ring_buffer_map_get_reader() when reader catches up
2025-11-07tracing/tools: Fix incorrcet short option in usage text for --threadsZhang Chujun
The help message incorrectly listed '-t' as the short option for --threads, but the actual getopt_long configuration uses '-e'. This mismatch can confuse users and lead to incorrect command-line usage. This patch updates the usage string to correctly show: "-e, --threads NRTHR" to match the implementation. Note: checkpatch.pl reports a false-positive spelling warning on 'Run', which is intentional. Link: https://patch.msgid.link/20251106031040.1869-1-zhangchujun@cmss.chinamobile.com Signed-off-by: Zhang Chujun <zhangchujun@cmss.chinamobile.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2025-11-07torture: Permit negative kvm.sh --kconfig numberic argumentsPaul E. McKenney
This commit loosens the kvm.sh script's regular expressions to permit negative-valued Kconfig options, for example: --kconfig CONFIG_CMDLINE_LOG_WRAP_IDEAL_LEN=-1 Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
2025-11-06perf vendor events arm64:: Add i.MX94 DDR Performance Monitor metricsXu Yang
Add JSON metrics for i.MX94 DDR Performance Monitor. Reviewed-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-11-06perf stat: Add ScaleUnit to {cpu,task}-clock JSON descriptionNamhyung Kim
This changes the output of the event like below. In fact, that's the output it used to have before the JSON conversion. Before: $ perf stat -e task-clock true Performance counter stats for 'true': 313,848 task-clock # 0.290 CPUs utilized 0.001081223 seconds time elapsed 0.001122000 seconds user 0.000000000 seconds sys After: $ perf stat -e task-clock true Performance counter stats for 'true': 0.36 msec task-clock # 0.297 CPUs utilized 0.001225435 seconds time elapsed 0.001268000 seconds user 0.000000000 seconds sys Reviewed-by: Ian Rogers <irogers@google.com> Fixes: 9957d8c801fe0cb90 ("perf jevents: Add common software event json") Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-11-06perf record: Make sure to update build-ID cacheNamhyung Kim
Recent change on enabling --buildid-mmap by default brought an issue with build-id handling. With build-ID in MMAP2 records, we don't need to save the build-ID table in the header of a perf data file. But the actual file contents still need to be cached in the debug directory for annotation etc. Split the build-ID header processing and caching and make sure perf record to save hit DSOs in the build-ID cache by moving perf_session__cache_build_ids() to the end of the record__ finish_output(). Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-11-06Merge tag 'perf-tools-fixes-for-v6.18-1-2025-11-06' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools Pull perf tools fixes from Arnaldo Carvalho de Melo: - Add James Clark as a perf tools reviewer - Handle '1' type symbols in /proc/kallsyms, related to anonymous Rust closures in the DRM panic QR encoder, caught by 'perf test' - Sync kernel header copies: MSRs, uprobe syscall, DRM_IOCTL_GEM_CHANGE_HANDLE, KVM exit reasons, etc * tag 'perf-tools-fixes-for-v6.18-1-2025-11-06' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: perf symbols: Handle '1' symbols in /proc/kallsyms tools headers asm: Sync fls headers header with the kernel sources tools headers UAPI: Sync KVM's vmx.h header with the kernel sources to handle new exit reasons tools headers svm: Sync svm headers with the kernel sources tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources MAINTAINERS: Add James Clark as a perf tools reviewer tools headers UAPI: Sync linux/kvm.h with the kernel sources tools headers UAPI: Update tools's copy of drm.h to pick DRM_IOCTL_GEM_CHANGE_HANDLE tools headers x86 cpufeatures: Sync with the kernel sources tools headers x86: Sync table due to introducion of uprobe syscall tools headers: Sync uapi/linux/fcntl.h with the kernel sources tools headers: Sync uapi/linux/prctl.h with the kernel source tools headers uapi: Update fs.h with the kernel sources tools arch x86: Sync msr-index.h to pick AMD64_{PERF_CNTR_GLOBAL_STATUS_SET,SAVIC_CONTROL}, IA32_L3_QOS_{ABMC,EXT}_CFG
2025-11-06selftests/bpf: Use start_server_str rather than start_reuseport_server in ↵Alexis Lothoré (eBPF Foundation)
tc_tunnel Now that start_server_str enforces SO_REUSEADDR, there's no need to keep using start_reusport_server in tc_tunnel, especially since it only uses one server at a time. Replace start_reuseport_server with start_server_str in tc_tunnel test. Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20251105-start-server-soreuseaddr-v1-2-1bbd9c1f8d65@bootlin.com
2025-11-06selftests/bpf: Systematically add SO_REUSEADDR in start_server_addrAlexis Lothoré (eBPF Foundation)
Some tests have to stop/start a server multiple time with the same listening address. Doing so without SO_REUSADDR leads to failures due to the socket still being in TIME_WAIT right after the first instance stop/before the second instance start. Instead of letting each test manually set SO_REUSEADDR on their servers, it can be done automatically by start_server_addr for all tests (and without any major downside). Enforce SO_REUSEADDR in start_server_addr for all tests. Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20251105-start-server-soreuseaddr-v1-1-1bbd9c1f8d65@bootlin.com
2025-11-06selftests/tracing: Add basic test for trace_marker_raw fileSteven Rostedt
Commit 64cf7d058a00 ("tracing: Have trace_marker use per-cpu data to read user space") made an update that fixed both trace_marker and trace_marker_raw. But the small difference made to trace_marker_raw had a blatant bug in it that any basic testing would have uncovered. Unfortunately, the self tests have tests for trace_marker but nothing for trace_marker_raw which allowed the bug to get upstream. Add basic selftests to test trace_marker_raw so that this doesn't happen again. Link: https://lore.kernel.org/r/20251014145149.3e3c1033@gandalf.local.home Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-11-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.18-rc5). Conflicts: drivers/net/wireless/ath/ath12k/mac.c 9222582ec524 ("Revert "wifi: ath12k: Fix missing station power save configuration"") 6917e268c433 ("wifi: ath12k: Defer vdev bring-up until CSA finalize to avoid stale beacon") https://lore.kernel.org/11cece9f7e36c12efd732baa5718239b1bf8c950.camel@sipsolutions.net Adjacent changes: drivers/net/ethernet/intel/Kconfig b1d16f7c0063 ("libie: depend on DEBUG_FS when building LIBIE_FWLOG") 93f53db9f9dc ("ice: switch to Page Pool") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-06Merge tag 'net-6.18-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: Including fixes from bluetooth and wireless. Current release - new code bugs: - ptp: expose raw cycles only for clocks with free-running counter - bonding: fix null-deref in actor_port_prio setting - mdio: ERR_PTR-check regmap pointer returned by device_node_to_regmap() - eth: libie: depend on DEBUG_FS when building LIBIE_FWLOG Previous releases - regressions: - virtio_net: fix perf regression due to bad alignment of virtio_net_hdr_v1_hash - Revert "wifi: ath10k: avoid unnecessary wait for service ready message" caused regressions for QCA988x and QCA9984 - Revert "wifi: ath12k: Fix missing station power save configuration" caused regressions for WCN7850 - eth: bnxt_en: shutdown FW DMA in bnxt_shutdown(), fix memory corruptions after kexec Previous releases - always broken: - virtio-net: fix received packet length check for big packets - sctp: fix races in socket diag handling - wifi: add an hrtimer-based delayed work item to avoid low granularity of timers set relatively far in the future, and use it where it matters (e.g. when performing AP-scheduled channel switch) - eth: mlx5e: - correctly propagate error in case of module EEPROM read failure - fix HW-GRO on systems with PAGE_SIZE == 64kB - dsa: b53: fixes for tagging, link configuration / RMII, FDB, multicast - phy: lan8842: implement latest errata" * tag 'net-6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (63 commits) selftests/vsock: avoid false-positives when checking dmesg net: bridge: fix MST static key usage net: bridge: fix use-after-free due to MST port state bypass lan966x: Fix sleeping in atomic context bonding: fix NULL pointer dereference in actor_port_prio setting net: dsa: microchip: Fix reserved multicast address table programming net: wan: framer: pef2256: Switch to devm_mfd_add_devices() net: libwx: fix device bus LAN ID net/mlx5e: SHAMPO, Fix header formulas for higher MTUs and 64K pages net/mlx5e: SHAMPO, Fix skb size check for 64K pages net/mlx5e: SHAMPO, Fix header mapping for 64K pages net: ti: icssg-prueth: Fix fdb hash size configuration net/mlx5e: Fix return value in case of module EEPROM read error net: gro_cells: Reduce lock scope in gro_cell_poll libie: depend on DEBUG_FS when building LIBIE_FWLOG wifi: mac80211_hwsim: Limit destroy_on_close radio removal to netgroup netpoll: Fix deadlock in memory allocation under spinlock net: ethernet: ti: netcp: Standardize knav_dma_open_channel to return NULL on error virtio-net: fix received length check in big packets bnxt_en: Fix warning in bnxt_dl_reload_down() ...
2025-11-06selftests/vsock: avoid false-positives when checking dmesgBobby Eshleman
Sometimes VMs will have some intermittent dmesg warnings that are unrelated to vsock. Change the dmesg parsing to filter on strings containing 'vsock' to avoid false positive failures that are unrelated to vsock. The downside is that it is possible for some vsock related warnings to not contain the substring 'vsock', so those will be missed. Fixes: a4a65c6fe08b ("selftests/vsock: add initial vmtest.sh for vsock") Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://patch.msgid.link/20251105-vsock-vmtest-dmesg-fix-v2-1-1a042a14892c@meta.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-06selftest/alsa: correct grammar in conf_get_bool error stringZhang Chujun
The phrase "an bool" is grammatically incorrect; it should be "a bool". Signed-off-by: Zhang Chujun <zhangchujun@cmss.chinamobile.com> Link: https://patch.msgid.link/20251106055819.1996-1-zhangchujun@cmss.chinamobile.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-11-05selftests/bpf: add C-level selftests for indirect jumpsAnton Protopopov
Add C-level selftests for indirect jumps to validate LLVM and libbpf functionality. The tests are intentionally disabled, to be run locally by developers, but will not make the CI red. Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com> Link: https://lore.kernel.org/r/20251105090410.1250500-13-a.s.protopopov@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-11-05selftests/bpf: add new verifier_gotox testAnton Protopopov
Add a set of tests to validate core gotox functionality without need to rely on compilers. Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com> Link: https://lore.kernel.org/r/20251105090410.1250500-12-a.s.protopopov@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-11-05libbpf: support llvm-generated indirect jumpsAnton Protopopov
For v4 instruction set LLVM is allowed to generate indirect jumps for switch statements and for 'goto *rX' assembly. Every such a jump will be accompanied by necessary metadata, e.g. (`llvm-objdump -Sr ...`): 0: r2 = 0x0 ll 0000000000000030: R_BPF_64_64 BPF.JT.0.0 Here BPF.JT.1.0 is a symbol residing in the .jumptables section: Symbol table: 4: 0000000000000000 240 OBJECT GLOBAL DEFAULT 4 BPF.JT.0.0 The -bpf-min-jump-table-entries llvm option may be used to control the minimal size of a switch which will be converted to an indirect jumps. Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20251105090410.1250500-11-a.s.protopopov@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-11-05selftests/bpf: test instructions arrays with blindingAnton Protopopov
Add a specific test for instructions arrays with blinding enabled. Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20251105090410.1250500-7-a.s.protopopov@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-11-05selftests/bpf: add selftests for new insn_array mapAnton Protopopov
Add the following selftests for new insn_array map: * Incorrect instruction indexes are rejected * Two programs can't use the same map * BPF progs can't operate the map * no changes to code => map is the same * expected changes when instructions are added * expected changes when instructions are deleted * expected changes when multiple functions are present Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20251105090410.1250500-5-a.s.protopopov@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-11-05libbpf: Recognize insn_array map typeAnton Protopopov
Teach libbpf about the existence of the new instruction array map. Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com> Link: https://lore.kernel.org/r/20251105090410.1250500-4-a.s.protopopov@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-11-05bpftool: Recognize insn_array map typeAnton Protopopov
Teach bpftool to recognize instruction array map type. Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com> Acked-by: Quentin Monnet <qmo@kernel.org> Link: https://lore.kernel.org/r/20251105090410.1250500-3-a.s.protopopov@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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