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2025-07-14selftests/bpf: Add tests for bucket resume logic in listening socketsJordan Rife
Replicate the set of test cases used for UDP socket iterators to test similar scenarios for TCP listening sockets. Signed-off-by: Jordan Rife <jordan@jrife.io> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Acked-by: Stanislav Fomichev <sdf@fomichev.me>
2025-07-14Merge branch 'tip/sched/urgent'Peter Zijlstra
Avoid merge conflicts Signed-off-by: Peter Zijlstra <peterz@infradead.org>
2025-07-14selftests: netfilter: nft_concat_range.sh: send packets to empty setFlorian Westphal
The selftest doesn't cover this error path: scratch = *raw_cpu_ptr(m->scratch); if (unlikely(!scratch)) { // here cover this too. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-07-14selftests: netfilter: conntrack_resize.sh: also use udpclash toolFlorian Westphal
Previous patch added a new clash resolution test case. Also use this during conntrack resize stress test in addition to icmp ping flood. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-07-14selftests: netfilter: add conntrack clash resolution test caseFlorian Westphal
Add a dedicated test to exercise conntrack clash resolution path. Test program emits 128 identical udp packets in parallel, then reads back replies from socat echo server. Also check (via conntrack -S) that the clash path was hit at least once. Due to the racy nature of the test its possible that despite the threaded program all packets were processed in-order or on same cpu, emit a SKIP warning in this case. Two tests are added: - one to test the simpler, non-nat case - one to exercise clash resolution where packets might have different nat transformations attached to them. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-07-14selftests: netfilter: conntrack_resize.sh: extend resize testFlorian Westphal
Extend the resize test: - continuously dump table both via /proc and ctnetlink interfaces while table is resized in a loop. - if socat is available, send udp packets in additon to ping requests. - increase/decrease the icmp and udp timeouts while resizes are happening. This makes sure we also exercise the 'ct has expired' check that happens on conntrack lookup. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-07-14tools/sched: Add dl_bw_dump.py for printing bandwidth accounting infoJuri Lelli
dl_rq bandwidth accounting information is crucial for the correct functioning of SCHED_DEADLINE. Add a drgn script for accessing that information at runtime, so that it's easier to check and debug issues related to it. Signed-off-by: Juri Lelli <juri.lelli@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Marcel Ziswiler <marcel.ziswiler@codethink.co.uk> # nuc & rock5b Link: https://lore.kernel.org/r/20250627115118.438797-6-juri.lelli@redhat.com
2025-07-14tools/sched: Add root_domains_dump.py which dumps root domains infoJuri Lelli
Root domains information is somewhat hard to access at runtime. Even with sched_debug and sched_verbose, such information is only printed on kernel console when domains are modified. Add a simple drgn script to more easily retrieve root domains information at runtime. Since tools/sched is a new directory, add it to MAINTAINERS as well. Signed-off-by: Juri Lelli <juri.lelli@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Marcel Ziswiler <marcel.ziswiler@codethink.co.uk> # nuc & rock5b Link: https://lore.kernel.org/r/20250627115118.438797-5-juri.lelli@redhat.com
2025-07-14tools/bootconfig: Cleanup bootconfig footer size calculationsMasami Hiramatsu (Google)
There are many same pattern of 8 + BOOTCONFIG_MAGIC_LEN for calculating the size of bootconfig footer. Use BOOTCONFIG_FOOTER_SIZE macro to clean up those magic numbers. Link: https://lore.kernel.org/all/175211425693.2591046.16029516706923643510.stgit@mhiramat.tok.corp.google.com/ Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2025-07-14tools/bootconfig: Replace some echo with printf for more portabilityMasami Hiramatsu (Google)
Since echo is not portable, use printf instead. This fixes a wrong test result formatting in some environment. (showing "\t\t[OK]") Also this uses printf command for generating test data instead of echo. Link: https://lore.kernel.org/all/175211424942.2591046.5439447789303314213.stgit@mhiramat.tok.corp.google.com/ Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2025-07-14tools/bootconfig: Improve portabilityMasami Hiramatsu (Google)
Since 'stat' command and 'truncate' command are GNU extension, use 'wc' and 'dd' commands instead. Link: https://lore.kernel.org/all/175211424184.2591046.3523297993175066026.stgit@mhiramat.tok.corp.google.com/ Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2025-07-14tools: bootconfig: Regex enclosed with quotes to make syntax highlight properBhaskar Chowdhury
As suggested, changed the square brackets escaping to quote the whole Regex class. Link: https://lore.kernel.org/all/20250709030141.27483-1-unixbhaskar@gmail.com/ Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2025-07-13tools/testing/selftests: add mremap() unfaulted/faulted test casesLorenzo Stoakes
Assert that mremap() behaviour is as expected when moving around unfaulted VMAs immediately adjacent to faulted ones, as well as moving around faulted VMAs and placing them back immediately adjacent to the VMA from which they were moved. This also introduces a shared helper for the syscall version of mremap() so we don't encounter any issues with libc filtering parameters. Link: https://lkml.kernel.org/r/20250702084717.21360-1-lorenzo.stoakes@oracle.com Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Jann Horn <jannh@google.com> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-07-13selftests/damon/sysfs.py: test DAMOS schemes parameters setupSeongJae Park
Add DAMON sysfs interface functionality tests for basic DAMOS schemes parameters setup. Link: https://lkml.kernel.org/r/20250628160428.53115-7-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-07-13selftests/damon/sysfs.py: test adaptive targets parameterSeongJae Park
Add DAMON sysfs interface functionality tests for setup of basic adaptive targets parameters. Link: https://lkml.kernel.org/r/20250628160428.53115-6-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-07-13selftests/damon/sysfs.py: test monitoring attribute parametersSeongJae Park
Add DAMON sysfs interface functionality tests for DAMON monitoring attribute parameters, including intervals, intervals tuning goals, and min/max number of regions. Link: https://lkml.kernel.org/r/20250628160428.53115-5-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-07-13selftests/damon: add python and drgn-based DAMON sysfs testSeongJae Park
Add a python-written DAMON sysfs functionality selftest. It sets DAMON parameters using Python module _damon_sysfs, reads updated kernel internal DAMON status and parameters using a 'drgn' script, namely drgn_dump_damon_status.py, and compare if the resulted DAMON internal status is as expected. The test is very minimum at the moment. Link: https://lkml.kernel.org/r/20250628160428.53115-4-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-07-13selftests/damon/_damon_sysfs: set Kdamond.pid in start()SeongJae Park
_damon_sysfs.py is a Python module for reading and writing DAMON sysfs for testing. It is not reading resulting kdamond pids. Read and update those when starting kdamonds. Link: https://lkml.kernel.org/r/20250628160428.53115-3-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-07-13selftests/damon: add drgn script for extracting damon statusSeongJae Park
Patch series "selftests/damon: add python and drgn based DAMON sysfs functionality tests". DAMON sysfs interface is the bridge between the user space and the kernel space for DAMON parameters. There is no good and simple test to see if the parameters are set as expected. Existing DAMON selftests therefore test end-to-end features. For example, damos_quota_goal.py runs a DAMOS scheme with quota goal set against a test program running an artificial access pattern, and see if the result is as expected. Such tests cover only a few part of DAMON. Adding more tests is also complicated. Finally, the reliability of the test itself on different systems is bad. 'drgn' is a tool that can extract kernel internal data structures like DAMON parameters. Add a test that passes specific DAMON parameters via DAMON sysfs reusing _damon_sysfs.py, extract resulting DAMON parameters via 'drgn', and compare those. Note that this test is not adding exhaustive tests of all DAMON parameters and input combinations but very basic things. Advancing the test infrastructure and adding more tests are future works. This patch (of 6): 'drgn' is a useful tool for extracting kernel internal data structures such as DAMON's parameter and running status. Add a 'drgn' script that extracts such DAMON internal data at runtime, for using it as a tool for seeing if a test input has made expected results in the kernel. The script saves or prints out the DAMON internal data as a json file or string. This is for making use of it not very depends on 'drgn'. If 'drgn' is not available on a test setup and we find alternative tools for doing that, the json-based tests can be updated to use an alternative tool in future. Note that the script is tested with 'drgn v0.0.22'. Link: https://lkml.kernel.org/r/20250628160428.53115-1-sj@kernel.org Link: https://lkml.kernel.org/r/20250628160428.53115-2-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-07-13tools: ynl: default to --process-unknown in installed modeJakub Kicinski
We default to raising an exception when unknown attrs are found to make sure those are noticed during development. When YNL CLI is "installed" and used by sysadmins erroring out is not going to be helpful. It's far more likely the user space is older than the kernel in that case, than that some attr is misdefined or missing. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-07-13Merge tag 'x86_urgent_for_v6.16_rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: - Update Kirill's email address - Allow hugetlb PMD sharing only on 64-bit as it doesn't make a whole lotta sense on 32-bit - Add fixes for a misconfigured AMD Zen2 client which wasn't even supposed to run Linux * tag 'x86_urgent_for_v6.16_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: MAINTAINERS: Update Kirill Shutemov's email address for TDX x86/mm: Disable hugetlb page table sharing on 32-bit x86/CPU/AMD: Disable INVLPGB on Zen2 x86/rdrand: Disable RDSEED on AMD Cyan Skillfish
2025-07-13selftests/nolibc: add x32 test configurationThomas Weißschuh
Nolibc supports the x32 ABI on x86. Add a testcase to make sure the support stays functional. QEMU user does not have support for x32, so skip the test there. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Acked-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/r/20250712-nolibc-x32-v1-2-6d81cb798710@weissschuh.net
2025-07-13tools/nolibc: define time_t in terms of __kernel_old_time_tThomas Weißschuh
Nolibc assumes that the kernel ABI is using a time values that are as large as a long integer. For most ABIs this holds true. But for x32 this is not correct, as it uses 32bit longs but 64bit times. Also the 'struct stat' implementation of nolibc relies on timespec::tv_sec and time_t being the same type. While timespec::tv_sec comes from the kernel and is of type __kernel_old_time_t, time_t is defined within nolibc. Switch to the __kernel_old_time_t to always get the correct type. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://lore.kernel.org/r/20250712-nolibc-x32-v1-1-6d81cb798710@weissschuh.net Acked-by: Willy Tarreau <w@1wt.eu>
2025-07-13tools: ynl: process unknown for enum valuesDonald Hunter
Extend the process_unknown handing to enum values and flags. Tested by removing entries from rt-link.yaml and rt-neigh.yaml: ./tools/net/ynl/pyynl/cli.py --family rt-link --dump getlink \ --process-unknown --output-json | jq '.[0] | ."ifi-flags"' [ "up", "Unknown(6)", "loopback", "Unknown(16)" ] ./tools/net/ynl/pyynl/cli.py --family rt-neigh --dump getneigh \ --process-unknown --output-json | jq '.[] | ."ndm-type"' "unicast" "Unknown(5)" "Unknown(5)" "unicast" "Unknown(5)" "unicast" "broadcast" Signed-off-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-07-13selftests/hid: add a test case for the recent syzbot underflowBenjamin Tissoires
Syzbot found a buffer underflow in __hid_request(). Add a related test case for it. It's not perfect, but it allows to catch a corner case when a report descriptor is crafted so that it has a size of 0. Link: https://patch.msgid.link/20250710-report-size-null-v2-4-ccf922b7c4e5@kernel.org Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
2025-07-12Merge branch 'mm-hotfixes-stable' into mm-stable to pick up changes whichAndrew Morton
are required for a merge of the series "mm: folio_pte_batch() improvements".
2025-07-12selftests: cgroup: Fix missing newline in test_zswap_writeback_oneSebastian Chlad
Fixes malformed test output due to missing newline Signed-off-by: Sebastian Chlad <sebastian.chlad@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2025-07-12selftests: cgroup: Allow longer timeout for kmem_dead_cgroups cleanupSebastian Chlad
The test_kmem_dead_cgroups test currently assumes that RCU and memory reclaim will complete within 5 seconds. In some environments this timeout may be insufficient, leading to spurious test failures. This patch introduces max_time set to 20 which is then used in the test. After 5th sec the debug message is printed to indicate the cleanup is still ongoing. In the system under test with 16 CPUs the original test was failing most of the time and the cleanup time took usually approx. 6sec. Further tests were conducted with and without do_rcu_barrier and the results (respectively) are as follow: quantiles 0 0.25 0.5 0.75 1 1 2 3 8 20 (mean = 4.7667) 3 5 8 8 20 (mean = 7.6667) Acked-by: Michal Koutny <mkoutny@suse.com> Signed-off-by: Sebastian Chlad <sebastian.chlad@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2025-07-12Merge tag 'mm-hotfixes-stable-2025-07-11-16-16' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "19 hotfixes. A whopping 16 are cc:stable and the remainder address post-6.15 issues or aren't considered necessary for -stable kernels. 14 are for MM. Three gdb-script fixes and a kallsyms build fix" * tag 'mm-hotfixes-stable-2025-07-11-16-16' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: Revert "sched/numa: add statistics of numa balance task" mm: fix the inaccurate memory statistics issue for users mm/damon: fix divide by zero in damon_get_intervals_score() samples/damon: fix damon sample mtier for start failure samples/damon: fix damon sample wsse for start failure samples/damon: fix damon sample prcl for start failure kasan: remove kasan_find_vm_area() to prevent possible deadlock scripts: gdb: vfs: support external dentry names mm/migrate: fix do_pages_stat in compat mode mm/damon/core: handle damon_call_control as normal under kdmond deactivation mm/rmap: fix potential out-of-bounds page table access during batched unmap mm/hugetlb: don't crash when allocating a folio if there are no resv scripts/gdb: de-reference per-CPU MCE interrupts scripts/gdb: fix interrupts.py after maple tree conversion maple_tree: fix mt_destroy_walk() on root leaf node mm/vmalloc: leave lazy MMU mode on PTE mapping error scripts/gdb: fix interrupts display after MCP on x86 lib/alloc_tag: do not acquire non-existent lock in alloc_tag_top_users() kallsyms: fix build without execinfo
2025-07-11selftests/net: packetdrill: add --mss option to three testsEric Dumazet
Three tests are cooking GSO packets but do not provide gso_size information to the kernel, triggering this message: TCP: tun0: Driver has suspect GRO implementation, TCP performance may be compromised. Add --mss option to avoid this warning. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250710155641.3028726-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-11selftests: net: add netdev-l2addr.sh for testing L2 address functionalityToke Høiland-Jørgensen
Add a new test script to the network selftests which tests getting and setting of layer 2 addresses through netlink, including the newly added support for setting a permaddr on netdevsim devices. Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://patch.msgid.link/20250710-netdevsim-perm_addr-v4-2-c9db2fecf3bf@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-11selftests: flip local/remote endpoints in iou-zcrx.pyVishwanath Seshagiri
The iou-zcrx selftest currently runs the server on the remote host and the client on the local host. This commit flips the endpoints such that server runs on localhost and client on remote. This change brings the iou-zcrx selftest in convention with other selftests. Drive-by fix for a missing import exception that happens when the network interface has less than 2 combined channels. Test plan: ran iou-zcrx.py selftest between 2 physical machines Signed-off-by: Vishwanath Seshagiri <vishs@fb.com> Link: https://patch.msgid.link/20250710165337.614159-1-vishs@meta.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-11selftests/tc-testing: Add tests for restrictions on netem duplicationWilliam Liu
Ensure that a duplicating netem cannot exist in a tree with other netems in both qdisc addition and change. This is meant to prevent the soft lockup and OOM loop scenario discussed in [1]. Also adjust a HFSC's re-entrancy test case with netem for this new restriction - KASAN still triggers upon its failure. [1] https://lore.kernel.org/netdev/8DuRWwfqjoRDLDmBMlIfbrsZg9Gx50DHJc1ilxsEBNe2D6NMoigR_eIRIG0LOjMc3r10nUUZtArXx4oZBIdUfZQrwjcQhdinnMis_0G7VEk=@willsroot.io/ Signed-off-by: William Liu <will@willsroot.io> Reviewed-by: Savino Dicanosa <savy@syst3mfailure.io> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Link: https://patch.msgid.link/20250708164219.875521-1-will@willsroot.io Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.16-rc6-2). No conflicts. Adjacent changes: drivers/net/wireless/mediatek/mt76/mt7925/mcu.c c701574c5412 ("wifi: mt76: mt7925: fix invalid array index in ssid assignment during hw scan") b3a431fe2e39 ("wifi: mt76: mt7925: fix off by one in mt7925_mcu_hw_scan()") drivers/net/wireless/mediatek/mt76/mt7996/mac.c 62da647a2b20 ("wifi: mt76: mt7996: Add MLO support to mt7996_tx_check_aggr()") dc66a129adf1 ("wifi: mt76: add a wrapper for wcid access with validation") drivers/net/wireless/mediatek/mt76/mt7996/main.c 3dd6f67c669c ("wifi: mt76: Move RCU section in mt7996_mcu_add_rate_ctrl()") 8989d8e90f5f ("wifi: mt76: mt7996: Do not set wcid.sta to 1 in mt7996_mac_sta_event()") net/mac80211/cfg.c 58fcb1b4287c ("wifi: mac80211: reject VHT opmode for unsupported channel widths") 037dc18ac3fb ("wifi: mac80211: add support for storing station S1G capabilities") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-11objtool: Add vpanic() to the noreturn listNam Cao
vpanic() does not return. However, objtool doesn't know this and gets confused: kernel/trace/rv/reactor_panic.o: warning: objtool: rv_panic_reaction(): unexpected end of section .text Add vpanic() to the list of noreturn functions. Cc: John Ogness <john.ogness@linutronix.de> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Gabriele Monaco <gmonaco@redhat.com> Cc: Josh Poimboeuf <jpoimboe@kernel.org> Cc: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/073f826ebec18b2bb59cba88606cd865d8039fd2.1752232374.git.namcao@linutronix.de Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202507110826.2ekbVdWZ-lkp@intel.com/ Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Nam Cao <namcao@linutronix.de> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2025-07-11selftests/bpf: Range analysis test case for JSETPaul Chaignon
This patch adds coverage for the warning detected by syzkaller and fixed in the previous patch. Without the previous patch, this test fails with: verifier bug: REG INVARIANTS VIOLATION (false_reg1): range bounds violation u64=[0x0, 0x0] s64=[0x0, 0x0] u32=[0x1, 0x0] s32=[0x0, 0x0] var_off=(0x0, 0x0)(1) Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/c7893be1170fdbcf64e0200c110cdbd360ce7086.1752171365.git.paul.chaignon@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-07-11selftests/bpf: add selftests for bpf_arena_reserve_pagesEmil Tsalapatis
Add selftests for the new bpf_arena_reserve_pages kfunc. Acked-by: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com> Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20250709191312.29840-3-emil@etsalapatis.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-07-11iommufd/selftest: Update hw_info coverage for an input data_typeNicolin Chen
Test both IOMMU_HW_INFO_TYPE_DEFAULT and IOMMU_HW_INFO_TYPE_SELFTEST, and add a negative test for an unsupported type. Also drop the unused mask in test_cmd_get_hw_capabilities() as checkpatch is complaining. Link: https://patch.msgid.link/r/f01a1e50cd7366f217cbf192ad0b2b79e0eb89f0.1752126748.git.nicolinc@nvidia.com Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Reviewed-by: Pranjal Shrivastava <praan@google.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-07-11iommufd/selftest: Add coverage for the new mmap interfaceNicolin Chen
Extend the loopback test to a new mmap page. Link: https://patch.msgid.link/r/b02b1220c955c3cf9ea5dd9fe9349ab1b4f8e20b.1752126748.git.nicolinc@nvidia.com Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Reviewed-by: Pranjal Shrivastava <praan@google.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-07-11selftests: drv-net: Add bpftool utilMohsin Bashir
Add bpf utility to simplify the use of bpftool for XDP tests included in this series. Signed-off-by: Mohsin Bashir <mohsin.bashr@gmail.com> Link: https://patch.msgid.link/20250710184351.63797-2-mohsin.bashr@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-11iommufd/selftest: Add coverage for IOMMUFD_CMD_HW_QUEUE_ALLOCNicolin Chen
Some simple tests for IOMMUFD_CMD_HW_QUEUE_ALLOC infrastructure covering the new iommufd_hw_queue_depend/undepend() helpers. Link: https://patch.msgid.link/r/e8a194d187d7ef445f43e4a3c04fb39472050afd.1752126748.git.nicolinc@nvidia.com Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Reviewed-by: Pranjal Shrivastava <praan@google.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-07-11perf bench futex: Remove support for IMMUTABLESebastian Andrzej Siewior
It has been decided to remove the support IMMUTABLE futex. perf bench was one of the eary users for testing purposes. Now that the API is removed before it could be used in an official release, remove the bits from perf, too. Remove Remove support for IMMUTABLE futex. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250710110011.384614-7-bigeasy@linutronix.de
2025-07-11selftests/futex: Remove support for IMMUTABLESebastian Andrzej Siewior
Testing for the IMMUTABLE part of the futex interface is not needed after the removal of the interface. Remove support for IMMUTABLE from the sefltest. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250710110011.384614-6-bigeasy@linutronix.de
2025-07-11selftests/futex: Adapt the private hash test to RCU related changesSebastian Andrzej Siewior
The auto scaling on create creation used to automatically assign the new hash because there was the private hash was unused and could be replaced right away. This is already racy because if the private hash is in use by a thread then the visibile resize will be delayed. With the upcoming change to wait for a RCU grace period before the hash can be assigned, the test will always fail. If the reported number of hash buckets is not updated after an auto scaling event, block on an acquired lock with a timeout. The timeout is the delay to wait towards a grace period and locking and a locked pthread_mutex_t ensure that glibc calls into kernel using futex operation which will assign new private hash if available. This will retry every 100ms up to 2 seconds in total. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250710110011.384614-2-bigeasy@linutronix.de
2025-07-10selftests: net: lib: fix shift count out of rangeHangbin Liu
I got the following warning when writing other tests: + handle_test_result_pass 'bond 802.3ad' '(lacp_active off)' + local 'test_name=bond 802.3ad' + shift + local 'opt_str=(lacp_active off)' + shift + log_test_result 'bond 802.3ad' '(lacp_active off)' ' OK ' + local 'test_name=bond 802.3ad' + shift + local 'opt_str=(lacp_active off)' + shift + local 'result= OK ' + shift + local retmsg= + shift /net/tools/testing/selftests/net/forwarding/../lib.sh: line 315: shift: shift count out of range This happens because an extra shift is executed even after all arguments have been consumed. Remove the last shift in log_test_result() to avoid this warning. Fixes: a923af1ceee7 ("selftests: forwarding: Convert log_test() to recognize RET values") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://patch.msgid.link/20250709091244.88395-1-liuhangbin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-10selftests: Add IPv6 multicast route generation tests for GRE devices.Guillaume Nault
The previous patch fixes a bug that prevented the creation of the default IPv6 multicast route (ff00::/8) for some GRE devices. Now let's extend the GRE IPv6 selftests to cover this case. Also, rename check_ipv6_ll_addr() to check_ipv6_device_config() and adapt comments and script output to take into account the fact that we're not limited to link-local address generation. Signed-off-by: Guillaume Nault <gnault@redhat.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/65a89583bde3bf866a1922c2e5158e4d72c520e2.1752070620.git.gnault@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-10selftests: drv-net: test RSS header field configurationJakub Kicinski
Test reading RXFH fields over IOCTL and netlink. # ./tools/testing/selftests/drivers/net/hw/rss_api.py TAP version 13 1..3 ok 1 rss_api.test_rxfh_indir_ntf ok 2 rss_api.test_rxfh_indir_ctx_ntf ok 3 rss_api.test_rxfh_fields # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0 Link: https://patch.msgid.link/20250708220640.2738464-6-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-10tools: ynl: decode enums in auto-intsJakub Kicinski
Use enum decoding on auto-ints. Looks like we only had enum auto-ints for input values until now. Upcoming RSS work will need this to declare an attribute with flags as a uint. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250708220640.2738464-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-10selftests: breakpoints: use suspend_stats to reliably check suspend successMoon Hee Lee
The step_after_suspend_test verifies that the system successfully suspended and resumed by setting a timerfd and checking whether the timer fully expired. However, this method is unreliable due to timing races. In practice, the system may take time to enter suspend, during which the timer may expire just before or during the transition. As a result, the remaining time after resume may show non-zero nanoseconds, even if suspend/resume completed successfully. This leads to false test failures. Replace the timer-based check with a read from /sys/power/suspend_stats/success. This counter is incremented only after a full suspend/resume cycle, providing a reliable and race-free indicator. Also remove the unused file descriptor for /sys/power/state, which remained after switching to a system() call to trigger suspend [1]. [1] https://lore.kernel.org/all/20240930224025.2858767-1-yifei.l.liu@oracle.com/ Link: https://lore.kernel.org/r/20250626191626.36794-1-moonhee.lee.ca@gmail.com Fixes: c66be905cda2 ("selftests: breakpoints: use remaining time to check if suspend succeed") Signed-off-by: Moon Hee Lee <moonhee.lee.ca@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-07-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.16-rc6). No conflicts. Adjacent changes: Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml 0a12c435a1d6 ("dt-bindings: net: sun8i-emac: Add A100 EMAC compatible") b3603c0466a8 ("dt-bindings: net: sun8i-emac: Rename A523 EMAC0 to GMAC0") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
generated by cgit (git 2.34.1) at 2025-09-11 23:24:52 +0000