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2025-07-21ktest.pl: Always display BUILD_DIR and OUTPUT_DIR at the start of testsSteven Rostedt
As ktest.pl can run in various different directories, to make sure the test is running in the proper directory with the proper source and proper destination directory, display the content of BUILD_DIR and OUTPUT_DIR at the start of every test. This can be helpful for the test runner to stop the test if a test is running in the wrong location instead of finding out after the test has completed. Cc: "John Warthog9 Hawley" <warthog9@kernel.org> Cc: Dhaval Giani <dhaval.giani@gmail.com> Cc: Greg KH <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/20250718202053.898022631@kernel.org Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2025-07-21ktest.pl: Prevent recursion of default variable optionsSteven Rostedt
If a default variable contains itself, do not recurse on it. For example: ADD_CONFIG := ${CONFIG_DIR}/temp_config DEFAULTS ADD_CONFIG = ${CONFIG_DIR}/default_config ${ADD_CONFIG} The above works because the temp variable ADD_CONFIG (is a temp because it is created with ":=") is already defined, it will be substituted in the variable option. But if it gets commented out: # ADD_CONFIG := ${CONFIG_DIR}/temp_config DEFAULTS ADD_CONFIG = ${CONFIG_DIR}/default_config ${ADD_CONFIG} Then the above will go into a recursive loop where ${ADD_CONFIG} will get replaced with the current definition of ADD_CONFIG which contains the ${ADD_CONFIG} and that will also try to get converted. ktest.pl will error after 100 attempts of recursion and fail. When replacing a variable with the default variable, if the default variable contains itself, do not replace it. Cc: "John Warthog9 Hawley" <warthog9@kernel.org> Cc: Dhaval Giani <dhaval.giani@gmail.com> Cc: Greg KH <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/20250718202053.732189428@kernel.org Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2025-07-21ktest.pl: Have -D option work without a spaceSteven Rostedt
Allow -DBUILD_TYPE=boot work the same as -D BUILD_TYPE=boot just like normal single character option does in most applications. Cc: "John Warthog9 Hawley" <warthog9@kernel.org> Cc: Dhaval Giani <dhaval.giani@gmail.com> Cc: Greg KH <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/20250718202053.567246162@kernel.org Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2025-07-21ktest.pl: Allow command option -D to override temp variablesSteven Rostedt
Currently -D only updates the persistent options that are defined with "=". Allow it to also override all temp variables that are defined with ":=". ktest.pl -D 'USE_TEMP_DIR:=1' -D 'TEST_TYPE[2]=build' config Cc: "John Warthog9 Hawley" <warthog9@kernel.org> Cc: Dhaval Giani <dhaval.giani@gmail.com> Cc: Greg KH <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/20250718202053.399653933@kernel.org Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2025-07-21ktest.pl: Add -D option to override optionsSteven Rostedt
Add -D option that lets the user override options in the config. For instance, if the config has: BUILD_NOCLEAN=1 which prevents mrproper from being called before builds, and the user wants to call it once. The user can run: ktest -D BUILD_NOCLEAN=0 config And the default "BUILD_NOCLEAN" options will be disabled. If the user wants to change the second test to do a build and not boot, the user can run: ktest -D 'TEST_TYPE[2]=build' config Where the '[#]' is for the test to assign the variable for. In the above example, it will happen on test 2. Cc: "John Warthog9 Hawley" <warthog9@kernel.org> Cc: Dhaval Giani <dhaval.giani@gmail.com> Cc: Greg KH <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/20250718202053.231478909@kernel.org Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2025-07-20perf build: Always disable stack protection for BPF skeleton objectsFederico Pellegrin
When the clang toolchain has stack protection enabled, the bpf skeletons build fails with: error: A call to built-in function '__stack_chk_fail' is not supported. Since stack-protector makes no sense for the BPF bits, just unconditionally disable it. See also similar case at 878625e1c7a10dfbb1fdaaaae2c4d2a58fbce627 Signed-off-by: Federico Pellegrin <fede@evolware.org> Link: https://lore.kernel.org/r/20250718041224.12389-1-fede@evolware.org [ rearrange long lines ] Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-07-20Merge tag 'locking-urgent-2025-07-20' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fix from Thomas Gleixner: "A single fix for the futex selftest code to make 32-bit user space work correctly on 64-bit kernels. sys_futex_wait() expects a struct __kernel_timespec for the timeout, but the selftest uses struct timespec, which is the original 32-bit non 2038 compliant variant. Fix it up by converting the callsite supplied timespec to a __kernel_timespec and hand that into the syscall" * tag 'locking-urgent-2025-07-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: selftests/futex: Convert 32-bit timespec to 64-bit version for 32-bit compatibility mode
2025-07-20Merge tag 'hyperv-fixes-signed-20250718' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull hyperv fixes from Wei Liu: - Select use CONFIG_SYSFB only if EFI is enabled (Michael Kelley) - An assorted set of fixes to remove warnings for missing export.h header inclusion (Naman Jain) - An assorted set of fixes for when Linux run as the root partition for Microsoft Hypervisor (Mukesh Rathor, Nuno Das Neves, Stanislav Kinsburskii) - Fix the check for HYPERVISOR_CALLBACK_VECTOR (Naman Jain) - Fix fcopy tool to handle irregularities with size of ring buffer (Naman Jain) - Fix incorrect file path conversion in fcopy tool (Yasumasa Suenaga) * tag 'hyperv-fixes-signed-20250718' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: tools/hv: fcopy: Fix irregularities with size of ring buffer PCI: hv: Use the correct hypercall for unmasking interrupts on nested x86/hyperv: Expose hv_map_msi_interrupt() Drivers: hv: Use nested hypercall for post message and signal event x86/hyperv: Clean up hv_map/unmap_interrupt() return values x86/hyperv: Fix usage of cpu_online_mask to get valid cpu PCI: hv: Don't load the driver for baremetal root partition net: mana: Fix warnings for missing export.h header inclusion PCI: hv: Fix warnings for missing export.h header inclusion clocksource: hyper-v: Fix warnings for missing export.h header inclusion x86/hyperv: Fix warnings for missing export.h header inclusion Drivers: hv: Fix warnings for missing export.h header inclusion Drivers: hv: Fix the check for HYPERVISOR_CALLBACK_VECTOR tools/hv: fcopy: Fix incorrect file path conversion Drivers: hv: Select CONFIG_SYSFB only if EFI is enabled
2025-07-19selftests/mm: fix split_huge_page_test for folio_split() testsZi Yan
PID_FMT does not have an offset field, so folio_split() tests are not performed. Add PID_FMT_OFFSET with an offset field and use it to perform folio_split() tests. Link: https://lkml.kernel.org/r/20250709012800.3225727-1-ziy@nvidia.com Fixes: 80a5c494c89f ("selftests/mm: add tests for folio_split(), buddy allocator like split") Signed-off-by: Zi Yan <ziy@nvidia.com> Tested-by: Baolin Wang <baolin.wang@linux.alibaba.com> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Reviewed-by: Donet Tom <donettom@linux.ibm.com> Tested-by : Donet Tom <donettom@linux.ibm.com> Cc: Barry Song <baohua@kernel.org> Cc: David Hildenbrand <david@redhat.com> Cc: Dev Jain <dev.jain@arm.com> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Mariano Pache <npache@redhat.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Shuah Khan <shuah@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-07-19delaytop: add psi info to show system delayWang Yaxin
Support showing whole delay of system by reading PSI, just like the first few lines of information output by the top command. the output of delaytop includes both system-wide delay and delay of individual tasks, providing a more comprehensive reflection of system latency status. Use case ======== bash# ./delaytop System Pressure Information: (avg10/avg60/avg300/total) CPU: full: 0.0%/ 0.0%/ 0.0%/0 some: 0.1%/ 0.0%/ 0.0%/14216596 Memory: full: 0.0%/ 0.0%/ 0.0%/34010659 some: 0.0%/ 0.0%/ 0.0%/35406492 IO: full: 0.1%/ 0.0%/ 0.0%/51029453 some: 0.1%/ 0.0%/ 0.0%/55330465 IRQ: full: 0.0%/ 0.0%/ 0.0%/0 Top 20 processes (sorted by CPU delay): PID TGID COMMAND CPU(ms) IO(ms) SWAP(ms) RCL(ms) THR(ms) CMP(ms) WP(ms) IRQ(ms) --------------------------------------------------------------------------------------------- 32 32 kworker/2:0H-sy 23.65 0.00 0.00 0.00 0.00 0.00 0.00 0.00 497 497 kworker/R-scsi_ 1.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 495 495 kworker/R-scsi_ 1.13 0.00 0.00 0.00 0.00 0.00 0.00 0.00 494 494 scsi_eh_0 1.12 0.00 0.00 0.00 0.00 0.00 0.00 0.00 485 485 kworker/R-ata_s 0.90 0.00 0.00 0.00 0.00 0.00 0.00 0.00 574 574 kworker/R-kdmfl 0.36 0.00 0.00 0.00 0.00 0.00 0.00 0.00 34 34 idle_inject/3 0.33 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1123 1123 nde-netfilter 0.28 0.00 0.00 0.00 0.00 0.00 0.00 0.00 60 60 ksoftirqd/7 0.25 0.00 0.00 0.00 0.00 0.00 0.00 0.00 114 114 kworker/0:2-cgr 0.25 0.00 0.00 0.00 0.00 0.00 0.00 0.00 496 496 scsi_eh_1 0.24 0.00 0.00 0.00 0.00 0.00 0.00 0.00 51 51 cpuhp/6 0.24 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1667 1667 atd 0.24 0.00 0.00 0.00 0.00 0.00 0.00 0.00 45 45 cpuhp/5 0.23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1102 1102 nde-backupservi 0.22 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1098 1098 systemsettings 0.21 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1100 1100 audit-monitor 0.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 53 53 migration/6 0.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1482 1482 sshd 0.19 0.00 0.00 0.00 0.00 0.00 0.00 0.00 39 39 cpuhp/4 0.19 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Link: https://lkml.kernel.org/r/20250710135451340_5pOgpIFi0M5AE7H44W1D@zte.com.cn Co-developed-by: Fan Yu <fan.yu9@zte.com.cn> Signed-off-by: Fan Yu <fan.yu9@zte.com.cn> Signed-off-by: Wang Yaxin <wang.yaxin@zte.com.cn> Signed-off-by: Jiang Kun <jiang.kun2@zte.com.cn> Cc: Balbir Singh <bsingharora@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: Peilin He <he.peilin@zte.com.cn> Cc: Qiang Tu <tu.qiang35@zte.com.cn> Cc: wangyong <wang.yong12@zte.com.cn> Cc: xu xin <xu.xin16@zte.com.cn> Cc: Yang Yang <yang.yang29@zte.com.cn> Cc: Yunkai Zhang <zhang.yunkai@zte.com.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-07-19selftests/thermal: remove duplicate newlines in perror callsWangYuli
perror() automatically appends a newline character, so the explicit '\n' in the format strings is redundant and results in duplicate newlines in the output. Remove the redundant '\n' characters from perror() calls in workload_hint_test.c to fix the formatting. Link: https://lkml.kernel.org/r/F482FB1EC020000C+20250710134751.306096-1-wangyuli@uniontech.com Signed-off-by: WangYuli <wangyuli@uniontech.com> Cc: Guan Wentao <guanwentao@uniontech.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-07-19selftests/thermal: remove duplicate sprintf() call in workload_hint_testWangYuli
Remove redundant sprintf() call that was duplicating the same operation of formatting delay_str with argv[1]. Link: https://lkml.kernel.org/r/6338CD0E839B770B+20250710130412.284531-1-wangyuli@uniontech.com Signed-off-by: WangYuli <wangyuli@uniontech.com> Cc: Guan Wentao <guanwentao@uniontech.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-07-19selftests/mm: pagemap_scan ioctl: add PFN ZERO test casesMuhammad Usama Anjum
Add test cases to test the correctness of PFN ZERO flag of pagemap_scan ioctl. Test with normal pages backed memory and huge pages backed memory. Link: https://lkml.kernel.org/r/20250707073321.106431-1-usama.anjum@collabora.com Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Cc: David Hildenbrand <david@redhat.com> Cc: Muhammad Usama Anjum <usama.anjum@collabora.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-07-19Merge tag 'sched_ext-for-6.16-rc6-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext fixes from Tejun Heo: - Fix handling of migration disabled tasks in default idle selection - update_locked_rq() called __this_cpu_write() spuriously with NULL when @rq was not locked. As the writes were spurious, it didn't break anything directly. However, the function could be called in a preemptible leading to a context warning in __this_cpu_write(). Skip the spurious NULL writes. - Selftest fix on UP * tag 'sched_ext-for-6.16-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: sched_ext: idle: Handle migration-disabled tasks in idle selection sched/ext: Prevent update_locked_rq() calls with NULL rq selftests/sched_ext: Fix exit selftest hang on UP
2025-07-19Merge tag 'rust-fixes-6.16-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux Pull Rust fixes from Miguel Ojeda: "Toolchain and infrastructure: - Fix build and modpost confusion for the upcoming Rust 1.89.0 release - Clean objtool warning for the upcoming Rust 1.89.0 release by adding one more noreturn function 'kernel' crate: - Fix build error when using generics in the 'try_{,pin_}init!' macros" * tag 'rust-fixes-6.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: rust: use `#[used(compiler)]` to fix build and `modpost` with Rust >= 1.89.0 objtool/rust: add one more `noreturn` Rust function for Rust 1.89.0 rust: init: Fix generics in *_init! macros
2025-07-18selftests: rtnetlink: Add operational state testIdo Schimmel
Virtual devices (e.g., VXLAN) that do not have a notion of a carrier are created with an "UNKNOWN" operational state which some users find confusing [1]. It is possible to set the operational state from user space either during device creation or afterwards and some applications will start doing that in order to avoid the above problem. Add a test for this functionality to ensure it does not regress. [1] https://lore.kernel.org/netdev/20241119153703.71f97b76@hermes.local/ Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250717125151.466882-1-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-18libbpf: Verify that arena map exists when adding arena relocationsEduard Zingerman
Fuzzer reported a memory access error in bpf_program__record_reloc() that happens when: - ".addr_space.1" section exists - there is a relocation referencing this section - there are no arena maps defined in BTF. Sanity checks for maps existence are already present in bpf_program__record_reloc(), hence this commit adds another one. [1] https://github.com/libbpf/libbpf/actions/runs/16375110681/job/46272998064 Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20250718222059.281526-1-eddyz87@gmail.com
2025-07-18iommufd/selftest: Add coverage for vdevice tombstoneXu Yilun
This tests the flow to tombstone vdevice when idevice is to be unbound before vdevice destruction. The expected results of the tombstone are: - The vdevice ID can't be reused anymore (not tested in this patch). - Even ioctl(IOMMU_DESTROY) can't free the vdevice ID. - iommufd_fops_release() can still free everything. Link: https://patch.msgid.link/r/20250716070349.1807226-8-yilun.xu@linux.intel.com Reviewed-by: Nicolin Chen <nicolinc@nvidia.com> Tested-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-07-18iommufd/selftest: Explicitly skip tests for inapplicable variantXu Yilun
no_viommu is not applicable for some viommu/vdevice tests. Explicitly report the skipping, don't do it silently. Opportunistically adjust the line wrappings after the indentation changes using git clang-format. Only add the prints. No functional change intended. Link: https://patch.msgid.link/r/20250716070349.1807226-7-yilun.xu@linux.intel.com Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Nicolin Chen <nicolinc@nvidia.com> Tested-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-07-18iommufd/selftest: Test reserved regions near ULONG_MAXJason Gunthorpe
This has triggered an overflow inside the ioas iova auto allocation logic, test it directly. Use the same stimulus syzkaller found. Link: https://patch.msgid.link/all/2-v1-7b4a16fc390b+10f4-iommufd_alloc_overflow_jgg@nvidia.com/ Tested-by: Yi Liu <yi.l.liu@intel.com> Tested-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-07-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after rc6Alexei Starovoitov
Cross-merge BPF and other fixes after downstream PR. No conflicts. Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-07-18Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfLinus Torvalds
Pull bpf fixes from Alexei Starovoitov: - Fix handling of BPF arena relocations (Andrii Nakryiko) - Fix race in bpf_arch_text_poke() on s390 (Ilya Leoshkevich) - Fix use of virt_to_phys() on arm64 when mmapping BTF (Lorenz Bauer) - Reject %p% format string in bprintf-like BPF helpers (Paul Chaignon) * tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: libbpf: Fix handling of BPF arena relocations btf: Fix virt_to_phys() on arm64 when mmapping BTF selftests/bpf: Stress test attaching a BPF prog to another BPF prog s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL again selftests/bpf: Add negative test cases for snprintf bpf: Reject %p% format string in bprintf-like helpers
2025-07-18libbpf: Fix warning in calloc() usageMatteo Croce
When compiling libbpf with some compilers, this warning is triggered: libbpf.c: In function ‘bpf_object__gen_loader’: libbpf.c:9209:28: error: ‘calloc’ sizes specified with ‘sizeof’ in the earlier argument and not in the later argument [-Werror=calloc-transposed-args] 9209 | gen = calloc(sizeof(*gen), 1); | ^ libbpf.c:9209:28: note: earlier argument should specify number of elements, later size of each element Fix this by inverting the calloc() arguments. Signed-off-by: Matteo Croce <teknoraver@meta.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/bpf/20250717200337.49168-1-technoboy85@gmail.com
2025-07-17libbpf: Fix handling of BPF arena relocationsAndrii Nakryiko
Initial __arena global variable support implementation in libbpf contains a bug: it remembers struct bpf_map pointer for arena, which is used later on to process relocations. Recording this pointer is problematic because map pointers are not stable during ELF relocation collection phase, as an array of struct bpf_map's can be reallocated, invalidating all the pointers. Libbpf is dealing with similar issues by using a stable internal map index, though for BPF arena map specifically this approach wasn't used due to an oversight. The resulting behavior is non-deterministic issue which depends on exact layout of ELF object file, number of actual maps, etc. We didn't hit this until very recently, when this bug started triggering crash in BPF CI when validating one of sched-ext BPF programs. The fix is rather straightforward: we just follow an established pattern of remembering map index (just like obj->kconfig_map_idx, for example) instead of `struct bpf_map *`, and resolving index to a pointer at the point where map information is necessary. While at it also add debug-level message for arena-related relocation resolution information, which we already have for all other kinds of maps. Fixes: 2e7ba4f8fd1f ("libbpf: Recognize __arena global variables.") Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Tested-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20250718001009.610955-1-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-07-17selftests/drivers/net: Support ipv6 for napi_id testTianyi Cui
Add support for IPv6 environment for napi_id test. Test Plan: ./run_kselftest.sh -t drivers/net:napi_id.py TAP version 13 1..1 # timeout set to 45 # selftests: drivers/net: napi_id.py # TAP version 13 # 1..1 # ok 1 napi_id.test_napi_id # # Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0 ok 1 selftests: drivers/net: napi_id.py Signed-off-by: Tianyi Cui <1997cui@gmail.com> Link: https://patch.msgid.link/20250717011913.1248816-1-1997cui@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17Merge tag 'for-netdev' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Martin KaFai Lau says: ==================== pull-request: bpf-next 2025-07-17 We've added 13 non-merge commits during the last 20 day(s) which contain a total of 4 files changed, 712 insertions(+), 84 deletions(-). The main changes are: 1) Avoid skipping or repeating a sk when using a TCP bpf_iter, from Jordan Rife. 2) Clarify the driver requirement on using the XDP metadata, from Song Yoong Siang * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: doc: xdp: Clarify driver implementation for XDP Rx metadata selftests/bpf: Add tests for bucket resume logic in established sockets selftests/bpf: Create iter_tcp_destroy test program selftests/bpf: Create established sockets in socket iterator tests selftests/bpf: Make ehash buckets configurable in socket iterator tests selftests/bpf: Allow for iteration over multiple states selftests/bpf: Allow for iteration over multiple ports selftests/bpf: Add tests for bucket resume logic in listening sockets bpf: tcp: Avoid socket skips and repeats during iteration bpf: tcp: Use bpf_tcp_iter_batch_item for bpf_tcp_iter_state batch items bpf: tcp: Get rid of st_bucket_done bpf: tcp: Make sure iter->batch always contains a full bucket snapshot bpf: tcp: Make mem flags configurable through bpf_iter_tcp_realloc_batch ==================== Link: https://patch.msgid.link/20250717191731.4142326-1-martin.lau@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17perf sched timehist: decode process names of processes in zombie stateAnubhav Shelat
Previously when running perf trace timehist --state, when recording processes in the zombie state the process name would not be decoded properly and appears with just the PID: 1140057.412177 [0006] Mutter Input Th[3139/3104] 0.956 0.019 0.041 S 1140057.412222 [0012] :1248612[1248612] 0.000 0.000 0.332 Z 1140057.412275 [0004] <idle> 0.052 0.052 0.953 I 1140057.412284 [0008] <idle> 0.070 0.070 0.932 I 1140057.412333 [0004] KMS thread[3126/3104] 0.953 0.112 0.058 S Now some extra processing has been added to decode the process name: 1140057.412177 [0006] Mutter Input Th[3139/3104] 0.956 0.019 0.041 S 1140057.412222 [0012] sleep[1248612] 0.000 0.000 0.332 Z 1140057.412275 [0004] <idle> 0.052 0.052 0.953 I 1140057.412284 [0008] <idle> 0.070 0.070 0.932 I 1140057.412333 [0004] KMS thread[3126/3104] 0.953 0.112 0.058 S Signed-off-by: Anubhav Shelat <ashelat@redhat.com> Link: https://lore.kernel.org/r/20250716203914.45772-2-ashelat@redhat.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-07-17selftests: net: prevent Python from buffering the outputJakub Kicinski
Make sure Python doesn't buffer the output, otherwise for some tests we may see false positive timeouts in NIPA. NIPA thinks that a machine has hung if the test doesn't print anything for 3min. This is also nice to heave for running the tests manually, especially in vng. Reviewed-by: Petr Machata <petrm@nvidia.com> Link: https://patch.msgid.link/20250716205712.1787325-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17selftests: drv-net: rss_api: test input-xfrm and hash fieldsJakub Kicinski
Test configuring input-xfrm and hash fields with all the limitations. Tested on mlx5 (CX6): # ./ksft-net-drv/drivers/net/hw/rss_api.py TAP version 13 1..10 ok 1 rss_api.test_rxfh_nl_set_fail ok 2 rss_api.test_rxfh_nl_set_indir ok 3 rss_api.test_rxfh_nl_set_indir_ctx ok 4 rss_api.test_rxfh_indir_ntf ok 5 rss_api.test_rxfh_indir_ctx_ntf ok 6 rss_api.test_rxfh_nl_set_key ok 7 rss_api.test_rxfh_fields ok 8 rss_api.test_rxfh_fields_set ok 9 rss_api.test_rxfh_fields_set_xfrm ok 10 rss_api.test_rxfh_fields_ntf # Totals: pass:10 fail:0 xfail:0 xpass:0 skip:0 error:0 Link: https://patch.msgid.link/20250716000331.1378807-12-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17netlink: specs: define input-xfrm enum in the specJakub Kicinski
Help YNL decode the values for input-xfrm by defining the possible values in the spec. Don't define "no change" as it's an IOCTL artifact with no use in Netlink. With this change on mlx5 input-xfrm gets decoded: # ynl --family ethtool --dump rss-get [{'header': {'dev-index': 2, 'dev-name': 'eth0'}, 'hfunc': 1, 'hkey': b'V\xa8\xf9\x9 ...', 'indir': [0, 1, ... ], 'input-xfrm': {'sym-or-xor'}, <<< 'flow-hash': {'ah4': {'ip-dst', 'ip-src'}, 'ah6': {'ip-dst', 'ip-src'}, 'esp4': {'ip-dst', 'ip-src'}, 'esp6': {'ip-dst', 'ip-src'}, 'ip4': {'ip-dst', 'ip-src'}, 'ip6': {'ip-dst', 'ip-src'}, 'tcp4': {'l4-b-0-1', 'ip-dst', 'l4-b-2-3', 'ip-src'}, 'tcp6': {'l4-b-0-1', 'ip-dst', 'l4-b-2-3', 'ip-src'}, 'udp4': {'l4-b-0-1', 'ip-dst', 'l4-b-2-3', 'ip-src'}, 'udp6': {'l4-b-0-1', 'ip-dst', 'l4-b-2-3', 'ip-src'}} }] Reviewed-by: Gal Pressman <gal@nvidia.com> Link: https://patch.msgid.link/20250716000331.1378807-9-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17selftests: drv-net: rss_api: test setting hashing key via NetlinkJakub Kicinski
Test setting hashing key via Netlink. # ./tools/testing/selftests/drivers/net/hw/rss_api.py TAP version 13 1..7 ok 1 rss_api.test_rxfh_nl_set_fail ok 2 rss_api.test_rxfh_nl_set_indir ok 3 rss_api.test_rxfh_nl_set_indir_ctx ok 4 rss_api.test_rxfh_indir_ntf ok 5 rss_api.test_rxfh_indir_ctx_ntf ok 6 rss_api.test_rxfh_nl_set_key ok 7 rss_api.test_rxfh_fields # Totals: pass:7 fail:0 xfail:0 xpass:0 skip:0 error:0 Link: https://patch.msgid.link/20250716000331.1378807-8-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17selftests: drv-net: rss_api: test setting indirection table via NetlinkJakub Kicinski
Test setting indirection table via Netlink. # ./tools/testing/selftests/drivers/net/hw/rss_api.py TAP version 13 1..6 ok 1 rss_api.test_rxfh_nl_set_fail ok 2 rss_api.test_rxfh_nl_set_indir ok 3 rss_api.test_rxfh_nl_set_indir_ctx ok 4 rss_api.test_rxfh_indir_ntf ok 5 rss_api.test_rxfh_indir_ctx_ntf ok 6 rss_api.test_rxfh_fields # Totals: pass:6 fail:0 xfail:0 xpass:0 skip:0 error:0 Reviewed-by: Edward Cree <ecree.xilinx@gmail.com> Link: https://patch.msgid.link/20250716000331.1378807-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17tools: ynl: support packing binary arrays of scalarsJakub Kicinski
We support decoding a binary type with a scalar subtype already, add support for sending such arrays to the kernel. While at it also support using "None" to indicate that the binary attribute should be empty. I couldn't decide whether empty binary should be [] or None, but there should be no harm in supporting both. Link: https://patch.msgid.link/20250716000331.1378807-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17selftests: drv-net: rss_api: factor out checking min queue countJakub Kicinski
Multiple tests check min queue count, create a helper. Link: https://patch.msgid.link/20250716000331.1378807-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17selftests/cgroup: fix cpu.max testsShashank Balaji
Current cpu.max tests (both the normal one and the nested one) are broken. They setup cpu.max with 1000 us quota and the default period (100,000 us). A cpu hog is run for a duration of 1s as per wall clock time. This corresponds to 10 periods, hence an expected usage of 10,000 us. We want the measured usage (as per cpu.stat) to be close to 10,000 us. Previously, this approximate equality test was done by `!values_close(usage_usec, expected_usage_usec, 95)`: if the absolute difference between usage_usec and expected_usage_usec is greater than 95% of their sum, then we pass. And expected_usage_usec was set to 1,000,000 us. Mathematically, this translates to the following being true for pass: |usage - expected_usage| > (usage + expected_usage)*0.95 If usage > expected_usage: usage - expected_usage > (usage + expected_usage)*0.95 0.05*usage > 1.95*expected_usage usage > 39*expected_usage = 39s If usage < expected_usage: expected_usage - usage > (usage + expected_usage)*0.95 0.05*expected_usage > 1.95*usage usage < 0.0256*expected_usage = 25,600 us Combined, Pass if usage < 25,600 us or > 39 s, which makes no sense given that all we need is for usage_usec to be close to 10,000 us. Fix this by explicitly calcuating the expected usage duration based on the configured quota, default period, and the duration, and compare usage_usec and expected_usage_usec using values_close() with a 10% error margin. Also, use snprintf to get the quota string to write to cpu.max instead of hardcoding the quota, ensuring a single source of truth. Remove the check comparing user_usec and expected_usage_usec, since on running this test modified with printfs, it's seen that user_usec and usage_usec can regularly exceed the theoretical expected_usage_usec: $ sudo ./test_cpu user: 10485, usage: 10485, expected: 10000 ok 1 test_cpucg_max user: 11127, usage: 11127, expected: 10000 ok 2 test_cpucg_max_nested $ sudo ./test_cpu user: 10286, usage: 10286, expected: 10000 ok 1 test_cpucg_max user: 10404, usage: 11271, expected: 10000 ok 2 test_cpucg_max_nested Hence, a values_close() check of usage_usec and expected_usage_usec is sufficient. Fixes: a79906570f9646ae17 ("cgroup: Add test_cpucg_max_nested() testcase") Fixes: 889ab8113ef1386c57 ("cgroup: Add test_cpucg_max() testcase") Acked-by: Michal Koutný <mkoutny@suse.com> Signed-off-by: Shashank Balaji <shashank.mahadasyam@sony.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2025-07-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.16-rc7). Conflicts: Documentation/netlink/specs/ovpn.yaml 880d43ca9aa4 ("netlink: specs: clean up spaces in brackets") af52020fc599 ("ovpn: reject unexpected netlink attributes") drivers/net/phy/phy_device.c a44312d58e78 ("net: phy: Don't register LEDs for genphy") f0f2b992d818 ("net: phy: Don't register LEDs for genphy") https://lore.kernel.org/20250710114926.7ec3a64f@kernel.org drivers/net/wireless/intel/iwlwifi/fw/regulatory.c drivers/net/wireless/intel/iwlwifi/mld/regulatory.c 5fde0fcbd760 ("wifi: iwlwifi: mask reserved bits in chan_state_active_bitmap") ea045a0de3b9 ("wifi: iwlwifi: add support for accepting raw DSM tables by firmware") net/ipv6/mcast.c ae3264a25a46 ("ipv6: mcast: Delay put pmc->idev in mld_del_delrec()") a8594c956cc9 ("ipv6: mcast: Avoid a duplicate pointer check in mld_del_delrec()") https://lore.kernel.org/8cc52891-3653-4b03-a45e-05464fe495cf@kernel.org No adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17Merge tag 'net-6.16-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from Bluetooth, CAN, WiFi and Netfilter. More code here than I would have liked. That said, better now than next week. Nothing particularly scary stands out. The improvement to the OpenVPN input validation is a bit large but better get them in before the code makes it to a final release. Some of the changes we got from sub-trees could have been split better between the fix and -next refactoring, IMHO, that has been communicated. We have one known regression in a TI AM65 board not getting link. The investigation is going a bit slow, a number of people are on vacation. We'll try to wrap it up, but don't think it should hold up the release. Current release - fix to a fix: - Bluetooth: L2CAP: fix attempting to adjust outgoing MTU, it broke some headphones and speakers Current release - regressions: - wifi: ath12k: fix packets received in WBM error ring with REO LUT enabled, fix Rx performance regression - wifi: iwlwifi: - fix crash due to a botched indexing conversion - mask reserved bits in chan_state_active_bitmap, avoid FW assert() Current release - new code bugs: - nf_conntrack: fix crash due to removal of uninitialised entry - eth: airoha: fix potential UaF in airoha_npu_get() Previous releases - regressions: - net: fix segmentation after TCP/UDP fraglist GRO - af_packet: fix the SO_SNDTIMEO constraint not taking effect and a potential soft lockup waiting for a completion - rpl: fix UaF in rpl_do_srh_inline() for sneaky skb geometry - virtio-net: fix recursive rtnl_lock() during probe() - eth: stmmac: populate entire system_counterval_t in get_time_fn() - eth: libwx: fix a number of crashes in the driver Rx path - hv_netvsc: prevent IPv6 addrconf after IFF_SLAVE lost that meaning Previous releases - always broken: - mptcp: fix races in handling connection fallback to pure TCP - rxrpc: assorted error handling and race fixes - sched: another batch of "security" fixes for qdiscs (QFQ, HTB) - tls: always refresh the queue when reading sock, avoid UaF - phy: don't register LEDs for genphy, avoid deadlock - Bluetooth: btintel: check if controller is ISO capable on btintel_classify_pkt_type(), work around FW returning incorrect capabilities Misc: - make OpenVPN Netlink input checking more strict before it makes it to a final release - wifi: cfg80211: remove scan request n_channels __counted_by, it's only yielding false positives" * tag 'net-6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (66 commits) rxrpc: Fix to use conn aborts for conn-wide failures rxrpc: Fix transmission of an abort in response to an abort rxrpc: Fix notification vs call-release vs recvmsg rxrpc: Fix recv-recv race of completed call rxrpc: Fix irq-disabled in local_bh_enable() selftests/tc-testing: Test htb_dequeue_tree with deactivation and row emptying net/sched: Return NULL when htb_lookup_leaf encounters an empty rbtree net: bridge: Do not offload IGMP/MLD messages selftests: Add test cases for vlan_filter modification during runtime net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime tls: always refresh the queue when reading sock virtio-net: fix recursived rtnl_lock() during probe() net/mlx5: Update the list of the PCI supported devices hv_netvsc: Set VF priv_flags to IFF_NO_ADDRCONF before open to prevent IPv6 addrconf phonet/pep: Move call to pn_skb_get_dst_sockaddr() earlier in pep_sock_accept() Bluetooth: L2CAP: Fix attempting to adjust outgoing MTU netfilter: nf_conntrack: fix crash due to removal of uninitialised entry net: fix segmentation after TCP/UDP fraglist GRO ipv6: mcast: Delay put pmc->idev in mld_del_delrec() net: airoha: fix potential use-after-free in airoha_npu_get() ...
2025-07-17selftests/tc-testing: Test htb_dequeue_tree with deactivation and row emptyingWilliam Liu
Ensure that any deactivation and row emptying that occurs during htb_dequeue_tree does not cause a kernel panic. This scenario originally triggered a kernel BUG_ON, and we are checking for a graceful fail now. Signed-off-by: William Liu <will@willsroot.io> Signed-off-by: Savino Dicanosa <savy@syst3mfailure.io> Link: https://patch.msgid.link/20250717022912.221426-1-will@willsroot.io Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17selftests: Add test cases for vlan_filter modification during runtimeDong Chenchen
Add test cases for vlan_filter modification during runtime, which may triger null-ptr-ref or memory leak of vlan0. Signed-off-by: Dong Chenchen <dongchenchen2@huawei.com> Link: https://patch.msgid.link/20250716034504.2285203-3-dongchenchen2@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17Merge tag 'nf-25-07-17' of ↵Paolo Abeni
git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following batch contains Netfilter fixes for net: 1) Three patches to enhance conntrack selftests for resize and clash resolution, from Florian Westphal. 2) Expand nft_concat_range.sh selftest to improve coverage from error path, from Florian Westphal. 3) Hide clash bit to userspace from netlink dumps until there is a good reason to expose, from Florian Westphal. 4) Revert notification for device registration/unregistration for nftables basechains and flowtables, we decided to go for a better way to handle this through the nfnetlink_hook infrastructure which will come via nf-next, patch from Phil Sutter. 5) Fix crash in conntrack due to race related to SLAB_TYPESAFE_BY_RCU that results in removing a recycled object that is not yet in the hashes. Move IPS_CONFIRM setting after the object is in the hashes. From Florian Westphal. netfilter pull request 25-07-17 * tag 'nf-25-07-17' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf: netfilter: nf_conntrack: fix crash due to removal of uninitialised entry Revert "netfilter: nf_tables: Add notifications for hook changes" netfilter: nf_tables: hide clash bit from userspace selftests: netfilter: nft_concat_range.sh: send packets to empty set selftests: netfilter: conntrack_resize.sh: also use udpclash tool selftests: netfilter: add conntrack clash resolution test case selftests: netfilter: conntrack_resize.sh: extend resize test ==================== Link: https://patch.msgid.link/20250717095808.41725-1-pablo@netfilter.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-07-17kselftest/arm4: Provide local defines for AT_HWCAP3Mark Brown
Some build environments for the selftests are not picking up the newly added AT_HWCAP3 when using the libc headers, even with headers_install (which we require already for the arm64 selftests). As a quick fix add local definitions of the constant to tools use it, while auxvec.h is installed with some toolchains it needs some persuasion to get picked up. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250715-arm64-selftest-bodge-hwcap3-v1-1-541b54bc43bb@kernel.org Signed-off-by: Will Deacon <will@kernel.org>
2025-07-16selftests/bpf: fix implementation of smp_mb()Puranjay Mohan
As BPF doesn't include any barrier instructions, smp_mb() is implemented by doing a dummy value returning atomic operation. Such an operation acts a full barrier as enforced by LKMM and also by the work in progress BPF memory model. If the returned value is not used, clang[1] can optimize the value returning atomic instruction in to a normal atomic instruction which provides no ordering guarantees. Mark the variable as volatile so the above optimization is never performed and smp_mb() works as expected. [1] https://godbolt.org/z/qzze7bG6z Fixes: 88d706ba7cc5 ("selftests/bpf: Introduce arena spin lock") Signed-off-by: Puranjay Mohan <puranjay@kernel.org> Link: https://lore.kernel.org/r/20250710175434.18829-2-puranjay@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-07-16bpf/selftests: Add selftests for token infoTao Chen
A previous change added bpf_token_info to get token info with bpf_get_obj_info_by_fd, this patch adds a new test for token info. #461/12 token/bpf_token_info:OK Acked-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Tao Chen <chen.dylane@linux.dev> Link: https://lore.kernel.org/r/20250716134654.1162635-2-chen.dylane@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-07-16bpf: Add struct bpf_token_infoTao Chen
The 'commit 35f96de04127 ("bpf: Introduce BPF token object")' added BPF token as a new kind of BPF kernel object. And BPF_OBJ_GET_INFO_BY_FD already used to get BPF object info, so we can also get token info with this cmd. One usage scenario, when program runs failed with token, because of the permission failure, we can report what BPF token is allowing with this API for debugging. Acked-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Tao Chen <chen.dylane@linux.dev> Link: https://lore.kernel.org/r/20250716134654.1162635-1-chen.dylane@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-07-16libbpf: start v1.7 dev cycleAndrii Nakryiko
With libbpf 1.6.0 released, adjust libbpf.map and libbpf_version.h to start v1.7 development cycles. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20250716175936.2343013-1-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-07-16selftests/bpf: Stress test attaching a BPF prog to another BPF progIlya Leoshkevich
Add a test that invokes a BPF prog in a loop, while concurrently attaching and detaching another BPF prog to and from it. This helps identifying race conditions in bpf_arch_text_poke(). Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Link: https://lore.kernel.org/r/20250716194524.48109-3-iii@linux.ibm.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-07-16selftests/bpf: enable tracing_struct tests for arm64Alexis Lothoré (eBPF Foundation)
Now that the constraint preventing attachment to functions consuming struct on stack has been removed from the kernel (and moved to pahole, with a slightly smarter detection, to prevent only those that are packed), re-enable the tracing_struct tests for arm64. Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Link: https://lore.kernel.org/r/20250709-arm64_relax_jit_comp-v1-2-3850fe189092@bootlin.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-07-16selftests: net: add netpoll basic functionality testBreno Leitao
Add a basic selftest for the netpoll polling mechanism, specifically targeting the netpoll poll() side. The test creates a scenario where network transmission is running at maximum speed, and netpoll needs to poll the NIC. This is achieved by: 1. Configuring a single RX/TX queue to create contention 2. Generating background traffic to saturate the interface 3. Sending netconsole messages to trigger netpoll polling 4. Using dynamic netconsole targets via configfs 5. Delete and create new netconsole targets after some messages 6. Start a bpftrace in parallel to make sure netpoll_poll_dev() is called 7. If bpftrace exists and netpoll_poll_dev() was called, stop. The test validates a critical netpoll code path by monitoring traffic flow and ensuring netpoll_poll_dev() is called when the normal TX path is blocked. This addresses a gap in netpoll test coverage for a path that is tricky for the network stack. Signed-off-by: Breno Leitao <leitao@debian.org> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250714-netpoll_test-v7-3-c0220cfaa63e@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-16selftests: drv-net: Strip '@' prefix from bpftrace map keysBreno Leitao
The '@' prefix in bpftrace map keys is specific to bpftrace and can be safely removed when processing results. This patch modifies the bpftrace utility to strip the '@' from map keys before storing them in the result dictionary, making the keys more consistent with Python conventions. Signed-off-by: Breno Leitao <leitao@debian.org> Link: https://patch.msgid.link/20250714-netpoll_test-v7-2-c0220cfaa63e@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-16selftests: drv-net: add helper/wrapper for bpftraceJakub Kicinski
bpftrace is very useful for low level driver testing. perf or trace-cmd would also do for collecting data from tracepoints, but they require much more post-processing. Add a wrapper for running bpftrace and sanitizing its output. bpftrace has JSON output, which is great, but it prints loose objects and in a slightly inconvenient format. We have to read the objects line by line, and while at it return them indexed by the map name. Reviewed-by: Breno Leitao <leitao@debian.org> Signed-off-by: Breno Leitao <leitao@debian.org> Link: https://patch.msgid.link/20250714-netpoll_test-v7-1-c0220cfaa63e@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
generated by cgit (git 2.34.1) at 2025-09-11 22:42:21 +0000