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2025-08-18selftests/nolibc: be more specific about variables affecting nolibc-testThomas Weißschuh
Only one of these variables is used. $CC is preferred over $CROSS_COMPILE. Make this clear in the help message. Suggested-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/lkml/20250817093905.GA14213@1wt.eu/ Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-08-18selftests/bpf: Clobber a lot of registers in tailcall_bpf2bpf_hierarchy testsIlya Leoshkevich
Clobbering a lot of registers and stack slots helps exposing tail call counter overwrite bugs in JITs. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20250813121016.163375-5-iii@linux.ibm.com
2025-08-18selftests: ublk: Use ARRAY_SIZE() macro to improve codeAkhilesh Patil
Use ARRAY_SIZE() macro while calculating size of an array to improve code readability and reduce potential sizing errors. Implement this suggestion given by spatch tool by running coccinelle script - scripts/coccinelle/misc/array_size.cocci Follow ARRAY_SIZE() macro usage pattern in ublk.c introduced by, commit ec120093180b9 ("selftests: ublk: fix ublk_find_tgt()") wherever appropriate to maintain consistency. Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in> Reviewed-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/aKGihYui6/Pcijbk@bhairav-test.ee.iitb.ac.in Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-08-17tools/nolibc: fix error return value of clock_nanosleep()Thomas Weißschuh
clock_nanosleep() returns a positive error value. Unlike other libc functions it *does not* return -1 nor set errno. Fix the return value and also adapt nanosleep(). Fixes: 7c02bc4088af ("tools/nolibc: add support for clock_nanosleep() and nanosleep()") Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Acked-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/r/20250731-nolibc-clock_nanosleep-ret-v1-1-9e4af7855e61@linutronix.de Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-08-15selftests: tls: make the new data_steal test less flakyJakub Kicinski
The CI has hit a couple of cases of: RUN global.data_steal ... tls.c:2762:data_steal:Expected recv(cfd, buf2, sizeof(buf2), MSG_DONTWAIT) (20000) == -1 (-1) data_steal: Test terminated by timeout FAIL global.data_steal Looks like the 2msec sleep is not long enough. Make the sleep longer, and then instead of second sleep wait for the thieving process to exit. That way we can be sure it called recv() before us. While at it also avoid trying to steal more than a record, this seems to be causing issues in manual testing as well. Fixes: d7e82594a45c ("selftests: tls: test TCP stealing data from under the TLS socket") Link: https://patch.msgid.link/20250814194323.2014650-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-15selftests/bpf: Add test for DEVMAP reuseYureka Lilian
The test covers basic re-use of a pinned DEVMAP map, with both matching and mismatching parameters. Signed-off-by: Yureka Lilian <yuka@yuka.dev> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/bpf/20250814180113.1245565-4-yuka@yuka.dev
2025-08-15bpf/selftests: Fix test_tcpnotify_userMatt Bobrowski
Based on a bisect, it appears that commit 7ee988770326 ("timers: Implement the hierarchical pull model") has somehow inadvertently broken BPF selftest test_tcpnotify_user. The error that is being generated by this test is as follows: FAILED: Wrong stats Expected 10 calls, got 8 It looks like the change allows timer functions to be run on CPUs different from the one they are armed on. The test had pinned itself to CPU 0, and in the past the retransmit attempts also occurred on CPU 0. The test had set the max_entries attribute for BPF_MAP_TYPE_PERF_EVENT_ARRAY to 2 and was calling bpf_perf_event_output() with BPF_F_CURRENT_CPU, so the entry was likely to be in range. With the change to allow timers to run on other CPUs, the current CPU tasked with performing the retransmit might be bumped and in turn fall out of range, as the event will be filtered out via __bpf_perf_event_output() using: if (unlikely(index >= array->map.max_entries)) return -E2BIG; A possible change would be to explicitly set the max_entries attribute for perf_event_map in test_tcpnotify_kern.c to a value that's at least as large as the number of CPUs. As it turns out however, if the field is left unset, then the libbpf will determine the number of CPUs available on the underlying system and update the max_entries attribute accordingly in map_set_def_max_entries(). A further problem with the test is that it has a thread that continues running up until the program exits. The main thread cleans up some LIBBPF data structures, while the other thread continues to use them, which inevitably will trigger a SIGSEGV. This can be dealt with by telling the thread to run for as long as necessary and doing a pthread_join on it before exiting the program. Finally, I don't think binding the process to CPU 0 is meaningful for this test any more, so get rid of that. Fixes: 435f90a338ae ("selftests/bpf: add a test case for sock_ops perf-event notification") Signed-off-by: Matt Bobrowski <mattbobrowski@google.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/aJ8kHhwgATmA3rLf@google.com
2025-08-15selftest: forwarding: router: Add a test case for IPv4 link-local source IPIdo Schimmel
Add a test case which checks that packets with an IPv4 link-local source IP are forwarded and not dropped. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Link: https://patch.msgid.link/3c2e0b17d99530f57bef5ddff9af284fa0c9b667.1755174341.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-15kunit: tool: Parse skipped tests from kselftest.hThomas Weißschuh
Skipped tests reported by kselftest.h use a different format than KTAP, there is no explicit test name. Normally the test name is part of the free-form string after the SKIP keyword: ok 3 # SKIP test: some reason Extend the parser to handle those correctly. Use the free-form string as test name instead. Link: https://lore.kernel.org/r/20250813-kunit-kselftesth-skip-v1-1-57ae3de4f109@linutronix.de Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-08-15selftests/bpf: Enable arena atomics tests for RV64Pu Lehui
Enable arena atomics tests for RV64. Signed-off-by: Pu Lehui <pulehui@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Björn Töpel <bjorn@rivosinc.com> Reviewed-by: Björn Töpel <bjorn@rivosinc.com> Acked-by: Björn Töpel <bjorn@kernel.org> Link: https://lore.kernel.org/bpf/20250719091730.2660197-11-pulehui@huaweicloud.com
2025-08-14selftests/tc-testing: Check backlog stats in gso_skb caseWilliam Liu
Add tests to ensure proper backlog accounting in hhf, codel, pie, fq, fq_pie, and fq_codel qdiscs. We check for the bug pattern originally found in fq, fq_pie, and fq_codel, which was an underflow in the tbf parent backlog stats upon child qdisc removal. Signed-off-by: William Liu <will@willsroot.io> Reviewed-by: Savino Dicanosa <savy@syst3mfailure.io> Link: https://patch.msgid.link/20250812235808.45281-1-will@willsroot.io Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-14selftests: net: Test bridge backup port when port is administratively downIdo Schimmel
Test that packets are redirected to the backup port when the primary port is administratively down. With the previous patch: # ./test_bridge_backup_port.sh [...] TEST: swp1 administratively down [ OK ] TEST: No forwarding out of swp1 [ OK ] TEST: Forwarding out of vx0 [ OK ] TEST: swp1 administratively up [ OK ] TEST: Forwarding out of swp1 [ OK ] TEST: No forwarding out of vx0 [ OK ] [...] Tests passed: 89 Tests failed: 0 Without the previous patch: # ./test_bridge_backup_port.sh [...] TEST: swp1 administratively down [ OK ] TEST: No forwarding out of swp1 [ OK ] TEST: Forwarding out of vx0 [FAIL] TEST: swp1 administratively up [ OK ] TEST: Forwarding out of swp1 [ OK ] [...] Tests passed: 85 Tests failed: 4 Signed-off-by: Ido Schimmel <idosch@nvidia.com> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://patch.msgid.link/20250812080213.325298-3-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-14selftests: drv-net: wait for carrierJakub Kicinski
On fast machines the tests run in quick succession so even when tests clean up after themselves the carrier may need some time to come back. Specifically in NIPA when ping.py runs right after netpoll_basic.py the first ping command fails. Since the context manager callbacks are now common NetDrvEpEnv gets an ip link up call as well. Reviewed-by: Joe Damato <joe@dama.to> Link: https://patch.msgid.link/20250812142054.750282-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-14torture: Add --do-normal parameter to torture.sh help textPaul E. McKenney
The --do-normal parameter was missing from the torture.sh script's help text, so this commit adds it. Hopefully better late than never! Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2025-08-14rcutorture: Fix jitter.sh spin timePaul E. McKenney
An embarrassing syntax error in jitter.sh makes for fixed spin time. This commit therefore makes it be variable, as intended, albeit with very coarse-grained adjustment. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2025-08-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.17-rc2). No conflicts. Adjacent changes: drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c d7a276a5768f ("net: stmmac: rk: convert to suspend()/resume() methods") de1e963ad064 ("net: stmmac: rk: put the PHY clock on remove") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-14Merge tag 'net-6.17-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from Netfilter and IPsec. Current release - regressions: - netfilter: nft_set_pipapo: - don't return bogus extension pointer - fix null deref for empty set Current release - new code bugs: - core: prevent deadlocks when enabling NAPIs with mixed kthread config - eth: netdevsim: Fix wild pointer access in nsim_queue_free(). Previous releases - regressions: - page_pool: allow enabling recycling late, fix false positive warning - sched: ets: use old 'nbands' while purging unused classes - xfrm: - restore GSO for SW crypto - bring back device check in validate_xmit_xfrm - tls: handle data disappearing from under the TLS ULP - ptp: prevent possible ABBA deadlock in ptp_clock_freerun() - eth: - bnxt: fill data page pool with frags if PAGE_SIZE > BNXT_RX_PAGE_SIZE - hv_netvsc: fix panic during namespace deletion with VF Previous releases - always broken: - netfilter: fix refcount leak on table dump - vsock: do not allow binding to VMADDR_PORT_ANY - sctp: linearize cloned gso packets in sctp_rcv - eth: - hibmcge: fix the division by zero issue - microchip: fix KSZ8863 reset problem" * tag 'net-6.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (54 commits) net: usb: asix_devices: add phy_mask for ax88772 mdio bus net: kcm: Fix race condition in kcm_unattach() selftests: net/forwarding: test purge of active DWRR classes net/sched: ets: use old 'nbands' while purging unused classes bnxt: fill data page pool with frags if PAGE_SIZE > BNXT_RX_PAGE_SIZE netdevsim: Fix wild pointer access in nsim_queue_free(). net: mctp: Fix bad kfree_skb in bind lookup test netfilter: nf_tables: reject duplicate device on updates ipvs: Fix estimator kthreads preferred affinity netfilter: nft_set_pipapo: fix null deref for empty set selftests: tls: test TCP stealing data from under the TLS socket tls: handle data disappearing from under the TLS ULP ptp: prevent possible ABBA deadlock in ptp_clock_freerun() ixgbe: prevent from unwanted interface name changes devlink: let driver opt out of automatic phys_port_name generation net: prevent deadlocks when enabling NAPIs with mixed kthread config net: update NAPI threaded config even for disabled NAPIs selftests: drv-net: don't assume device has only 2 queues docs: Fix name for net.ipv4.udp_child_hash_entries riscv: dts: thead: Add APB clocks for TH1520 GMACs ...
2025-08-14selftests: drv-net: add test for RSS on flow labelJakub Kicinski
Add a simple test for checking that RSS on flow label works, and that its rejected for IPv4 flows. # ./tools/testing/selftests/drivers/net/hw/rss_flow_label.py TAP version 13 1..2 ok 1 rss_flow_label.test_rss_flow_label ok 2 rss_flow_label.test_rss_flow_label_6only # Totals: pass:2 fail:0 xfail:0 xpass:0 skip:0 error:0 Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Joe Damato <joe@dama.to> Link: https://patch.msgid.link/20250811234212.580748-5-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-08-13selftests: net/forwarding: test purge of active DWRR classesDavide Caratti
Extend sch_ets.sh to add a reproducer for problematic list deletions when active DWRR class are purged by ets_qdisc_change() [1] [2]. [1] https://lore.kernel.org/netdev/e08c7f4a6882f260011909a868311c6e9b54f3e4.1639153474.git.dcaratti@redhat.com/ [2] https://lore.kernel.org/netdev/f3b9bacc73145f265c19ab80785933da5b7cbdec.1754581577.git.dcaratti@redhat.com/ Suggested-by: Victor Nogueira <victor@mojatatu.com> Signed-off-by: Davide Caratti <dcaratti@redhat.com> Acked-by: Victor Nogueira <victor@mojatatu.com> Link: https://patch.msgid.link/489497cb781af7389011ca1591fb702a7391f5e7.1755016081.git.dcaratti@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-13selftests: netconsole: Validate interface selection by MAC addressAndre Carvalho
Extend the existing netconsole cmdline selftest to also validate that interface selection can be performed via MAC address. The test now validates that netconsole works with both interface name and MAC address, improving test coverage. Suggested-by: Breno Leitao <leitao@debian.org> Reviewed-by: Breno Leitao <leitao@debian.org> Signed-off-by: Andre Carvalho <asantostc@gmail.com> Link: https://patch.msgid.link/20250812-netcons-cmdline-selftest-v2-1-8099fb7afa9e@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-13selftests: forwarding: Add a test for FDB activity notification controlIdo Schimmel
Test various aspects of FDB activity notification control: * Transitioning of an FDB entry from inactive to active state. * Transitioning of an FDB entry from active to inactive state. * Avoiding the resetting of an FDB entry's last activity time (i.e., "updated" time) using the "norefresh" keyword. Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://patch.msgid.link/20250812071810.312346-1-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-13selftests/bpf: Copy test_kmods when installing selftestAmery Hung
Commit d6212d82bf26 ("selftests/bpf: Consolidate kernel modules into common directory") consolidated the Makefile of test_kmods. However, since it removed test_kmods from TEST_GEN_PROGS_EXTENDED, the kernel modules required by bpf selftests are now missing from kselftest_install when "make install". Fix it by adding test_kmod to TEST_GEN_FILES. Fixes: d6212d82bf26 ("selftests/bpf: Consolidate kernel modules into common directory") Signed-off-by: Amery Hung <ameryhung@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20250812175039.2323570-1-ameryhung@gmail.com
2025-08-13Merge tag 'mm-hotfixes-stable-2025-08-12-20-50' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "12 hotfixes. 5 are cc:stable and the remainder address post-6.16 issues or aren't considered necessary for -stable kernels. 10 of these fixes are for MM" * tag 'mm-hotfixes-stable-2025-08-12-20-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: proc: proc_maps_open allow proc_mem_open to return NULL mm/mremap: avoid expensive folio lookup on mremap folio pte batch userfaultfd: fix a crash in UFFDIO_MOVE when PMD is a migration entry mm: pass page directly instead of using folio_page selftests/proc: fix string literal warning in proc-maps-race.c fs/proc/task_mmu: hold PTL in pagemap_hugetlb_range and gather_hugetlb_stats mm/smaps: fix race between smaps_hugetlb_range and migration mm: fix the race between collapse and PT_RECLAIM under per-vma lock mm/kmemleak: avoid soft lockup in __kmemleak_do_cleanup() MAINTAINERS: add Masami as a reviewer of hung task detector mm/kmemleak: avoid deadlock by moving pr_warn() outside kmemleak_lock kasan/test: fix protection against compiler elision
2025-08-12selftests: tls: test TCP stealing data from under the TLS socketJakub Kicinski
Check a race where data disappears from the TCP socket after TLS signaled that its ready to receive. ok 6 global.data_steal # RUN tls_basic.base_base ... # OK tls_basic.base_base Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20250807232907.600366-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-12selftests: drv-net: devmem: flip the direction of Tx testsJakub Kicinski
The Device Under Test should always be the local system. While the Rx test gets this right the Tx test is sending from remote to local. So Tx of DMABUF memory happens on remote. These tests never run in NIPA since we don't have a compatible device so we haven't caught this. Reviewed-by: Joe Damato <joe@dama.to> Reviewed-by: Mina Almasry <almasrymina@google.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250811231334.561137-6-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-12selftests: net: terminate bkg() commands on exceptionJakub Kicinski
There is a number of: with bkg("socat ..LISTEN..", exit_wait=True) uses in the tests. If whatever is supposed to send the traffic fails we will get stuck in the bkg(). Try to kill the process in case of exception, to avoid the long wait. A specific example where this happens is the devmem Tx tests. Reviewed-by: Joe Damato <joe@dama.to> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250811231334.561137-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-12selftests: drv-net: devmem: add / correct the IPv6 supportJakub Kicinski
We need to use bracketed IPv6 addresses for socat. Reviewed-by: Joe Damato <joe@dama.to> Reviewed-by: Mina Almasry <almasrymina@google.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250811231334.561137-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-12selftests: drv-net: devmem: remove sudo from system() callsJakub Kicinski
The general expectations for network HW selftests is that they will be run as root. sudo doesn't seem to work on NIPA VMs. While it's probably something solvable in the setup I think we should remove the sudos. devmem is the only networking test using sudo. Reviewed-by: Joe Damato <joe@dama.to> Reviewed-by: Mina Almasry <almasrymina@google.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250811231334.561137-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-12selftests: drv-net: add configs for zerocopy RxJakub Kicinski
Looks like neither IO_URING nor UDMABUF are enabled even tho iou-zcrx.py and devmem.py (respectively) need those. IO_URING gets enabled by default but UDMABUF is missing. Reviewed-by: Joe Damato <joe@dama.to> Reviewed-by: Mina Almasry <almasrymina@google.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250811231334.561137-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-12selftest: af_unix: Add -Wall and -Wflex-array-member-not-at-end to CFLAGS.Kuniyuki Iwashima
-Wall and -Wflex-array-member-not-at-end caught some warnings that will be fixed in later patches. Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250811215432.3379570-2-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-12selftest: af_unix: Silence -Wall warning for scm_pid.c.Kuniyuki Iwashima
-Wall found 2 unused variables in scm_pid.c: scm_pidfd.c: In function ‘parse_cmsg’: scm_pidfd.c:140:13: warning: unused variable ‘data’ [-Wunused-variable] 140 | int data = 0; | ^~~~ scm_pidfd.c: In function ‘cmsg_check_dead’: scm_pidfd.c:246:15: warning: unused variable ‘client_pid’ [-Wunused-variable] 246 | pid_t client_pid; | ^~~~~~~~~~ Let's remove these variables. Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250811215432.3379570-5-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-12selftest: af_unix: Silence -Wflex-array-member-not-at-end warning for ↵Kuniyuki Iwashima
scm_rights.c. scm_rights.c has no problem in functionality, but when compiled with -Wflex-array-member-not-at-end, it shows this warning: scm_rights.c: In function ‘__send_fd’: scm_rights.c:275:32: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] 275 | struct cmsghdr cmsghdr; | ^~~~~~~ Let's silence it. Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250811215432.3379570-4-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-12selftest: af_unix: Silence -Wflex-array-member-not-at-end warning for scm_inq.c.Kuniyuki Iwashima
scm_inq.c has no problem in functionality, but when compiled with -Wflex-array-member-not-at-end, it shows this warning: scm_inq.c:15:24: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] 15 | struct cmsghdr cmsghdr; | ^~~~~~~ Let's silence it. Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250811215432.3379570-3-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfMartin KaFai Lau
Cross merge bpf/master after 6.17-rc1. No conflict. Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2025-08-12selftests: drv-net: don't assume device has only 2 queuesJakub Kicinski
The test is implicitly assuming the device only has 2 queues. A real device will likely have more. The exact problem is that because NAPIs get added to the list from the head, the netlink dump reports them in reverse order. So the naive napis[0] will actually likely give us the _last_ NAPI, not the first one. Re-enable all the NAPIs instead of hard-coding 2 in the test. This way the NAPIs we operated on will always reappear, doesn't matter where they were in the registration order. Fixes: e6d76268813d ("net: Update threaded state in napi config in netif_set_threaded") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Joe Damato <joe@dama.to> Link: https://patch.msgid.link/20250809001205.1147153-2-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-08-11selftests/proc: fix string literal warning in proc-maps-race.cSukrut Heroorkar
This change resolves non literal string format warning invoked for proc-maps-race.c while compiling. proc-maps-race.c:205:17: warning: format not a string literal and no format arguments [-Wformat-security] 205 | printf(text); | ^~~~~~ proc-maps-race.c:209:17: warning: format not a string literal and no format arguments [-Wformat-security] 209 | printf(text); | ^~~~~~ proc-maps-race.c: In function `print_last_lines': proc-maps-race.c:224:9: warning: format not a string literal and no format arguments [-Wformat-security] 224 | printf(start); | ^~~~~~ Add string format specifier %s for the printf calls in both print_first_lines() and print_last_lines() thus resolving the warnings. The test executes fine after this change thus causing no effect to the functional behavior of the test. Link: https://lkml.kernel.org/r/20250804225633.841777-1-hsukrut3@gmail.com Fixes: aadc099c480f ("selftests/proc: add verbose mode for /proc/pid/maps tearing tests") Signed-off-by: Sukrut Heroorkar <hsukrut3@gmail.com> Acked-by: Suren Baghdasaryan <surenb@google.com> Cc: David Hunter <david.hunter.linux@gmail.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-08-11selftests/net: Ensure assert() triggers in psock_tpacket.cWake Liu
The get_next_frame() function in psock_tpacket.c was missing a return statement in its default switch case, leading to a compiler warning. This was caused by a `bug_on(1)` call, which is defined as an `assert()`, being compiled out because NDEBUG is defined during the build. Instead of adding a `return NULL;` which would silently hide the error and could lead to crashes later, this change restores the original author's intent. By adding `#undef NDEBUG` before including <assert.h>, we ensure the assertion is active and will cause the test to abort if this unreachable code is ever executed. Signed-off-by: Wake Liu <wakel@google.com> Link: https://patch.msgid.link/20250809062013.2407822-1-wakel@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-11selftests/net: Replace non-standard __WORDSIZE with sizeof(long) * 8Wake Liu
The `__WORDSIZE` macro, defined in the non-standard `<bits/wordsize.h>` header, is a GNU extension and not universally available with all toolchains, such as Clang when used with musl libc. This can lead to build failures in environments where this header is missing. The intention of the code is to determine the bit width of a C `long`. Replace the non-portable `__WORDSIZE` with the standard and portable `sizeof(long) * 8` expression to achieve the same result. This change also removes the inclusion of the now-unused `<bits/wordsize.h>` header. Signed-off-by: Wake Liu <wakel@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-11selftests/sched_ext: Remove duplicate sched.h headerJiapeng Chong
./tools/testing/selftests/sched_ext/hotplug.c: sched.h is included more than once. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=22941 Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Acked-by: Andrea Righi <arighi@nvidia.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2025-08-11selftests/coredump: Remove the read() that fails the testNam Cao
Resolve a conflict between commit 6a68d28066b6 ("selftests/coredump: Fix "socket_detect_userspace_client" test failure") and commit 994dc26302ed ("selftests/coredump: fix build") The first commit adds a read() to wait for write() from another thread to finish. But the second commit removes the write(). Now that the two commits are in the same tree, the read() now gets EOF and the test fails. Remove this read() so that the test passes. Signed-off-by: Nam Cao <namcao@linutronix.de> Link: https://lore.kernel.org/20250811074957.4079616-1-namcao@linutronix.de Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-08-11selftests/filesystems: add basic fscontext log testsAleksa Sarai
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com> Link: https://lore.kernel.org/20250807-fscontext-log-cleanups-v3-2-8d91d6242dc3@cyphar.com Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-08-11selftests/mount_setattr: add smoke tests for open_tree_attr(2) bugAleksa Sarai
There appear to be no other open_tree_attr(2) tests at the moment, but as a minimal solution just add some additional checks in the existing MOUNT_ATTR_IDMAP tests to make sure that open_tree_attr(2) cannot be used to bypass the tested restrictions that apply to mount_setattr(2). Signed-off-by: Aleksa Sarai <cyphar@cyphar.com> Link: https://lore.kernel.org/20250808-open_tree_attr-bugfix-idmap-v1-2-0ec7bc05646c@cyphar.com Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-08-08KVM: arm64: selftest: Add standalone test checking for KVM's own UUIDMarc Zyngier
Tinkering with UUIDs is a perilious task, and the KVM UUID gets broken at times. In order to spot this early enough, add a selftest that will shout if the expected value isn't found. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Sebastian Ott <sebott@redhat.com> Link: https://lore.kernel.org/r/20250721130558.50823-1-jackabt.amazon@gmail.com Link: https://lore.kernel.org/r/20250806171341.1521210-1-maz@kernel.org Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-08-08Merge tag 'net-6.17-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: Previous releases - regressions: - netlink: avoid infinite retry looping in netlink_unicast() Previous releases - always broken: - packet: fix a race in packet_set_ring() and packet_notifier() - ipv6: reject malicious packets in ipv6_gso_segment() - sched: mqprio: fix stack out-of-bounds write in tc entry parsing - net: drop UFO packets (injected via virtio) in udp_rcv_segment() - eth: mlx5: correctly set gso_segs when LRO is used, avoid false positive checksum validation errors - netpoll: prevent hanging NAPI when netcons gets enabled - phy: mscc: fix parsing of unicast frames for PTP timestamping - a number of device tree / OF reference leak fixes" * tag 'net-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (44 commits) pptp: fix pptp_xmit() error path net: ti: icssg-prueth: Fix skb handling for XDP_PASS net: Update threaded state in napi config in netif_set_threaded selftests: netdevsim: Xfail nexthop test on slow machines eth: fbnic: Lock the tx_dropped update eth: fbnic: Fix tx_dropped reporting eth: fbnic: remove the debugging trick of super high page bias net: ftgmac100: fix potential NULL pointer access in ftgmac100_phy_disconnect dt-bindings: net: Replace bouncing Alexandru Tachici emails dpll: zl3073x: ZL3073X_I2C and ZL3073X_SPI should depend on NET net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing Revert "net: mdio_bus: Use devm for getting reset GPIO" selftests: net: packetdrill: xfail all problems on slow machines net/packet: fix a race in packet_set_ring() and packet_notifier() benet: fix BUG when creating VFs net: airoha: npu: Add missing MODULE_FIRMWARE macros net: devmem: fix DMA direction on unmapping ipa: fix compile-testing with qcom-mdt=m eth: fbnic: unlink NAPIs from queues on error to open net: Add locking to protect skb->dev access in ip_output ...
2025-08-06selftests/bpf: Test multi_st_ops and calling kfuncs from different programsAmery Hung
Test multi_st_ops and demonstrate how different bpf programs can call a kfuncs that refers to the struct_ops instance in the same source file by id. The id is defined as a global vairable and initialized before attaching the skeleton. Kfuncs that take the id can hide the argument with a macro to make it almost transparent to bpf program developers. The test involves two struct_ops returning different values from .test_1. In syscall and tracing programs, check if the correct value is returned by a kfunc that calls .test_1. Signed-off-by: Amery Hung <ameryhung@gmail.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20250806162540.681679-4-ameryhung@gmail.com
2025-08-06selftests/bpf: Add multi_st_ops that supports multiple instancesAmery Hung
Current struct_ops in bpf_testmod only support attaching single instance. Add multi_st_ops that supports multiple instances. The struct_ops uses map id as the struct_ops id and will reject attachment with an existing id. Signed-off-by: Amery Hung <ameryhung@gmail.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20250806162540.681679-3-ameryhung@gmail.com
2025-08-06Merge tag 'perf-fixes-27504' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git Pull perf fixes from Thomas Gleixner: "Perf fixes for perf_mmap() reference counting to prevent potential reference count leaks which are caused by: - VMA splits, which change the offset or size of a mapping, which causes perf_mmap_close() to ignore the unmap or unmap the wrong buffer. - Several internal issues of perf_mmap(), which can cause reference count leaks in the perf mmap, corrupt accounting or cause leaks in perf drivers. The main fix is to prevent VMA splits by implementing the [may_]split() callback for vm operations. The other issues are addressed by rearranging code, early returns on failure and invocation of cleanups. Also provide a selftest to validate the fixes. The reference counting should be converted to refcount_t, but that requires larger refactoring of the code and will be done once these fixes are upstream" * tag 'perf-fixes-27504' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git: selftests/perf_events: Add a mmap() correctness test perf/core: Prevent VMA split of buffer mappings perf/core: Handle buffer mapping fail correctly in perf_mmap() perf/core: Exit early on perf_mmap() fail perf/core: Don't leak AUX buffer refcount on allocation failure perf/core: Preserve AUX buffer allocation failure result
2025-08-05net: Update threaded state in napi config in netif_set_threadedSamiullah Khawaja
Commit 2677010e7793 ("Add support to set NAPI threaded for individual NAPI") added support to enable/disable threaded napi using netlink. This also extended the napi config save/restore functionality to set the napi threaded state. This breaks netdev reset for drivers that use napi threaded at device level and also use napi config save/restore on napi_disable/napi_enable. Basically on netdev with napi threaded enabled at device level, a napi_enable call will get stuck trying to stop the napi kthread. This is because the napi->config->threaded is set to disabled when threaded is enabled at device level. The issue can be reproduced on virtio-net device using qemu. To reproduce the issue run following, echo 1 > /sys/class/net/threaded ethtool -L eth0 combined 1 Update the threaded state in napi config in netif_set_threaded and add a new test that verifies this scenario. Tested on qemu with virtio-net: NETIF=eth0 ./tools/testing/selftests/drivers/net/napi_threaded.py TAP version 13 1..2 ok 1 napi_threaded.change_num_queues ok 2 napi_threaded.enable_dev_threaded_disable_napi_threaded # Totals: pass:2 fail:0 xfail:0 xpass:0 skip:0 error:0 Fixes: 2677010e7793 ("Add support to set NAPI threaded for individual NAPI") Signed-off-by: Samiullah Khawaja <skhawaja@google.com> Link: https://patch.msgid.link/20250804164457.2494390-1-skhawaja@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-05selftests: netdevsim: Xfail nexthop test on slow machinesIdo Schimmel
A lot of test cases in the file are related to the idle and unbalanced timers of resilient nexthop groups and these tests are reported to be flaky on slow machines running debug kernels. Rather than marking a lot of individual tests with xfail_on_slow(), simply mark all the tests. Note that the test is stable on non-debug machines and that with debug kernels we are mainly interested in the output of various sanitizers in order to determine pass / fail. Before: # make -C tools/testing/selftests KSFT_MACHINE_SLOW=yes \ TARGETS=drivers/net/netdevsim TEST_PROGS=nexthop.sh \ TEST_GEN_PROGS="" run_tests [...] # TEST: Bucket migration after idle timer (with delete) [FAIL] # Group expected to still be unbalanced [...] not ok 1 selftests: drivers/net/netdevsim: nexthop.sh # exit=1 After: # make -C tools/testing/selftests KSFT_MACHINE_SLOW=yes \ TARGETS=drivers/net/netdevsim TEST_PROGS=nexthop.sh \ TEST_GEN_PROGS="" run_tests [...] # TEST: Bucket migration after idle timer (with delete) [XFAIL] # Group expected to still be unbalanced [...] ok 1 selftests: drivers/net/netdevsim: nexthop.sh Reported-by: Jakub Kicinski <kuba@kernel.org> Closes: https://lore.kernel.org/netdev/20250729160609.02e0f157@kernel.org/ Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20250804114320.193203-1-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-05selftests/perf_events: Add a mmap() correctness testLorenzo Stoakes
Exercise various mmap(), munmap() and mremap() invocations, which might cause a perf buffer mapping to be split or truncated. To avoid hard coding the perf event and having dependencies on architectures and configuration options, scan through event types in sysfs and try to open them. On success, try to mmap() and if that succeeds try to mmap() the AUX buffer. In case that no AUX buffer supporting event is found, only test the base buffer mapping. If no mappable event is found or permissions are not sufficient, skip the tests. Reserve a PROT_NONE region for both rb and aux tests to allow testing the case where mremap unmaps beyond the end of a mapped VMA to prevent it from unmapping unrelated mappings. Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Co-developed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
generated by cgit v1.2.3 (git 2.39.1) at 2026-08-03 08:35:58 +0000