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2025-02-20bpf: Add networking timestamping support to bpf_get/setsockopt()Jason Xing
The new SK_BPF_CB_FLAGS and new SK_BPF_CB_TX_TIMESTAMPING are added to bpf_get/setsockopt. The later patches will implement the BPF networking timestamping. The BPF program will use bpf_setsockopt(SK_BPF_CB_FLAGS, SK_BPF_CB_TX_TIMESTAMPING) to enable the BPF networking timestamping on a socket. Signed-off-by: Jason Xing <kerneljasonxing@gmail.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250220072940.99994-2-kerneljasonxing@gmail.com
2025-02-20tools/nolibc: add support for 32-bit s390Thomas Weißschuh
32-bit s390 is very close to the existing 64-bit implementation. Some special handling is necessary as there is neither LLVM nor QEMU support. Also the kernel itself can not build natively for 32-bit s390, so instead the test program is executed with a 64-bit kernel. Acked-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/r/20250206-nolibc-s390-v2-2-991ad97e3d58@weissschuh.net Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-02-20selftests/nolibc: rename s390 to s390xThomas Weißschuh
Support for 32-bit s390 is about to be added. As "s39032" would look horrible, use the another naming scheme. 32-bit s390 is "s390" and 64-bit s390 is "s390x", similar to how it is handled in various toolchain components. Acked-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/r/20250206-nolibc-s390-v2-1-991ad97e3d58@weissschuh.net Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-02-20selftests/nolibc: only run constructor tests on nolibcThomas Weißschuh
The nolibc testsuite can be run against other libcs to test for interoperability. Some aspects of the constructor execution are not standardized and musl does not provide all tested feature, for one it does not provide arguments to the constructors, anymore? Skip the constructor tests on non-nolibc configurations. Acked-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/r/20250212-nolibc-test-constructor-v1-1-c963875b3da4@weissschuh.net Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2025-02-20selftests/tracing: Allow some more tests to run in instancesSteven Rostedt
The tests: trigger-action-hist-xfail.tc trigger-onchange-action-hist.tc trigger-snapshot-action-hist.tc trigger-hist-expressions.tc can all run in an instance. Test them in an instance as well. Link: https://lore.kernel.org/r/20250220185846.451234966@goodmis.org Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-02-20selftests/ftrace: Clean up triggers after setting themSteven Rostedt
The triggers set in trigger-onchange-action-hist.tc and trigger-snapshot-action-hist.tc are not cleaned up at the end. These tests can also be done in instances and without cleaning up the triggers, the instances can not be removed as they are still "busy". Link: https://lore.kernel.org/r/20250220185846.291817731@goodmis.org Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-02-20selftests/tracing: Test only toplevel README file not the instancesSteven Rostedt
For the tests that have both a README attribute as well as the instance flag to run the tests as an instance, the instance version will always exit with UNSUPPORTED. That's because the instance directory does not contain a README file. Currently, the tests check for a README file in the directory that the test runs in and if there's a requirement for something to be present in the README file, it will not find it, as the instance directory doesn't have it. Have the tests check if the current directory is an instance directory, and if it is, check two directories above the current directory for the README file: /sys/kernel/tracing/README /sys/kernel/tracing/instances/foo/../../README Link: https://lore.kernel.org/r/20250220185846.130216270@goodmis.org Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-02-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.14-rc4). No conflicts or adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-20Merge tag 'net-6.14-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Smaller than usual with no fixes from any subtree. Current release - regressions: - core: fix race of rtnl_net_lock(dev_net(dev)) Previous releases - regressions: - core: remove the single page frag cache for good - flow_dissector: fix handling of mixed port and port-range keys - sched: cls_api: fix error handling causing NULL dereference - tcp: - adjust rcvq_space after updating scaling ratio - drop secpath at the same time as we currently drop dst - eth: gtp: suppress list corruption splat in gtp_net_exit_batch_rtnl(). Previous releases - always broken: - vsock: - fix variables initialization during resuming - for connectible sockets allow only connected - eth: - geneve: fix use-after-free in geneve_find_dev() - ibmvnic: don't reference skb after sending to VIOS" * tag 'net-6.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (34 commits) Revert "net: skb: introduce and use a single page frag cache" net: allow small head cache usage with large MAX_SKB_FRAGS values nfp: bpf: Add check for nfp_app_ctrl_msg_alloc() tcp: drop secpath at the same time as we currently drop dst net: axienet: Set mac_managed_pm arp: switch to dev_getbyhwaddr() in arp_req_set_public() net: Add non-RCU dev_getbyhwaddr() helper sctp: Fix undefined behavior in left shift operation selftests/bpf: Add a specific dst port matching flow_dissector: Fix port range key handling in BPF conversion selftests/net/forwarding: Add a test case for tc-flower of mixed port and port-range flow_dissector: Fix handling of mixed port and port-range keys geneve: Suppress list corruption splat in geneve_destroy_tunnels(). gtp: Suppress list corruption splat in gtp_net_exit_batch_rtnl(). dev: Use rtnl_net_dev_lock() in unregister_netdev(). net: Fix dev_net(dev) race in unregister_netdevice_notifier_dev_net(). net: Add net_passive_inc() and net_passive_dec(). net: pse-pd: pd692x0: Fix power limit retrieval MAINTAINERS: trim the GVE entry gve: set xdp redirect target only when it is available ...
2025-02-20cpupower: monitor: Exit with error status if execvp() failYiwei Lin
In the case that we give a invalid command to idle_monitor for monitoring, the execvp() will fail and thus go to the next line. As a result, we'll see two differnt monitoring output. For example, running `cpupower monitor -i 5 invalidcmd` which `invalidcmd` is not executable. Link: https://lore.kernel.org/r/20250220163846.2765-1-s921975628@gmail.com Signed-off-by: Yiwei Lin <s921975628@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-02-20tools/memory-model: Define effect of Mb tags on RMWs in tools/...Jonas Oberhauser
Herd7 transforms successful RMW with Mb tags by inserting smp_mb() fences around them. We emulate this by considering imaginary po-edges before the RMW read and before the RMW write, and extending the smp_mb() ordering rule, which currently only applies to real po edges that would be found around a really inserted smp_mb(), also to cases of the only imagined po edges. Reported-by: Viktor Vafeiadis <viktor@mpi-sws.org> Suggested-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Jonas Oberhauser <jonas.oberhauser@huaweicloud.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Reviewed-by: Boqun Feng <boqun.feng@gmail.com> Tested-by: Boqun Feng <boqun.feng@gmail.com>
2025-02-20tools/memory-model: Define applicable tags on operation in tools/...Jonas Oberhauser
Herd7 transforms reads, writes, and read-modify-writes by eliminating 'acquire tags from writes, 'release tags from reads, and 'acquire, 'release, and 'mb tags from failed read-modify-writes. We emulate this behavior by redefining Acquire, Release, and Mb sets in linux-kernel.bell to explicitly exclude those combinations. Herd7 furthermore adds 'noreturn tag to certain reads. Currently herd7 does not allow specifying the 'noreturn tag manually, but such manual declaration (e.g., through a syntax __atomic_op{noreturn}) would add invalid 'noreturn tags to writes; in preparation, we already also exclude this combination. Signed-off-by: Jonas Oberhauser <jonas.oberhauser@huaweicloud.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Reviewed-by: Boqun Feng <boqun.feng@gmail.com> Tested-by: Boqun Feng <boqun.feng@gmail.com>
2025-02-20tools/memory-model: Legitimize current use of tags in LKMM macrosJonas Oberhauser
The current macros in linux-kernel.def reference instructions such as __xchg{mb} or __cmpxchg{acquire}, which are invalid combinations of tags and instructions according to the declarations in linux-kernel.bell. This works with current herd7 because herd7 removes these tags anyways and does not actually enforce validity of combinations at all. If a future herd7 version no longer applies these hardcoded transformations, then all currently invalid combinations will actually appear on some instruction. We therefore adjust the declarations to make the resulting combinations valid, by adding the 'mb tag to the set of Accesses and allowing all Accesses to appear on all read, write, and RMW instructions. Signed-off-by: Jonas Oberhauser <jonas.oberhauser@huaweicloud.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Reviewed-by: Boqun Feng <boqun.feng@gmail.com> Tested-by: Boqun Feng <boqun.feng@gmail.com>
2025-02-20tools/memory-model: Add atomic_andnot() with its variantsPuranjay Mohan
Pull-855[1] added the support of atomic_andnot() to the herd tool. Use this to add the implementation in the LKMM. All of the ordering variants are also added. Here is a small litmus-test that uses this operation: C andnot { atomic_t u = ATOMIC_INIT(7); } P0(atomic_t *u) { r0 = atomic_fetch_andnot(3, u); r1 = READ_ONCE(*u); } exists (0:r0=7 /\ 0:r1=4) Test andnot Allowed States 1 0:r0=7; 0:r1=4; Ok Witnesses Positive: 1 Negative: 0 Condition exists (0:r0=7 /\ 0:r1=4) Observation andnot Always 1 0 Time andnot 0.00 Hash=78f011a0b5a0c65fa1cf106fcd62c845 [1] https://github.com/herd/herdtools7/pull/855 Signed-off-by: Puranjay Mohan <puranjay@kernel.org> Acked-by: Andrea Parri <parri.andrea@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Will Deacon <will@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: Jade Alglave <j.alglave@ucl.ac.uk> Cc: Luc Maranget <luc.maranget@inria.fr> Cc: Akira Yokosawa <akiyks@gmail.com> Cc: Daniel Lustig <dlustig@nvidia.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: <linux-arch@vger.kernel.org>
2025-02-20tools/memory-model: Add atomic_and()/or()/xor() and add_negativePuranjay Mohan
Pull-849[1] added the support of '&', '|', and '^' to the herd7 tool's atomics operations. Use these in linux-kernel.def to implement atomic_and()/or()/xor() with all their ordering variants. atomic_add_negative() is already available so add its acquire, release, and relaxed ordering variants. [1] https://github.com/herd/herdtools7/pull/849 Signed-off-by: Puranjay Mohan <puranjay@kernel.org> Acked-by: Andrea Parri <parri.andrea@gmail.com> Reviewed-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Will Deacon <will@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: Jade Alglave <j.alglave@ucl.ac.uk> Cc: Luc Maranget <luc.maranget@inria.fr> Cc: Akira Yokosawa <akiyks@gmail.com> Cc: Daniel Lustig <dlustig@nvidia.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: <linux-arch@vger.kernel.org>
2025-02-20selftests/nsfs: add ioctl validation testsChristian Brauner
Add simple tests to validate that non-nsfs ioctls are rejected. Link: https://lore.kernel.org/r/20250219-work-nsfs-v1-2-21128d73c5e8@kernel.org Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-02-19selftests: drv-net: add a simple TSO testJakub Kicinski
Add a simple test for TSO. Send a few MB of data and check device stats to verify that the device was performing segmentation. Do the same thing over a few tunnel types. Injecting GSO packets directly would give us more ability to test corner cases, but perhaps starting simple is good enough? # ./ksft-net-drv/drivers/net/hw/tso.py # Detected qstat for LSO wire-packets KTAP version 1 1..14 ok 1 tso.ipv4 # SKIP Test requires IPv4 connectivity ok 2 tso.vxlan4_ipv4 # SKIP Test requires IPv4 connectivity ok 3 tso.vxlan6_ipv4 # SKIP Test requires IPv4 connectivity ok 4 tso.vxlan_csum4_ipv4 # SKIP Test requires IPv4 connectivity ok 5 tso.vxlan_csum6_ipv4 # SKIP Test requires IPv4 connectivity ok 6 tso.gre4_ipv4 # SKIP Test requires IPv4 connectivity ok 7 tso.gre6_ipv4 # SKIP Test requires IPv4 connectivity ok 8 tso.ipv6 ok 9 tso.vxlan4_ipv6 ok 10 tso.vxlan6_ipv6 ok 11 tso.vxlan_csum4_ipv6 ok 12 tso.vxlan_csum6_ipv6 # Testing with mangleid enabled ok 13 tso.gre4_ipv6 ok 14 tso.gre6_ipv6 # Totals: pass:7 fail:0 xfail:0 xpass:0 skip:7 error:0 Note that the test currently depends on the driver reporting the LSO count via qstat, which appears to be relatively rare (virtio, cisco/enic, sfc/efc; but virtio needs host support). Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250218225426.77726-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-19selftests: drv-net: store addresses in dict indexed by ipverJakub Kicinski
Looks like more and more tests want to iterate over IP version, run the same test over ipv4 and ipv6. The current naming of members in the env class makes it a bit awkward, we have separate members for ipv4 and ipv6 parameters. Store the parameters inside dicts, so that tests can easily index them with ip version. Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250218225426.77726-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-19selftests: drv-net: get detailed interface infoJakub Kicinski
We already record output of ip link for NETIF in env for easy access. Record the detailed version. TSO test will want to know the max tso size. Reviewed-by: Willem de Bruijn <willemb@google.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Link: https://patch.msgid.link/20250218225426.77726-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-19selftests: drv-net: resolve remote interface nameJakub Kicinski
Find out and record in env the name of the interface which remote host will use for the IP address provided via config. Interface name is useful for mausezahn and for setting up tunnels. Reviewed-by: Willem de Bruijn <willemb@google.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Link: https://patch.msgid.link/20250218225426.77726-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-19selftests: net: Fix minor typos in MPTCP and psock testsSuchit
Fixes minor spelling errors: - `simult_flows.sh`: "al testcases" -> "all testcases" - `psock_tpacket.c`: "accross" -> "across" Signed-off-by: Suchit Karunakaran <suchitkarunakaran@gmail.com> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250218165923.20740-1-suchitkarunakaran@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-19selftests/bpf: Add a specific dst port matchingCong Wang
After this patch: #102/1 flow_dissector_classification/ipv4:OK #102/2 flow_dissector_classification/ipv4_continue_dissect:OK #102/3 flow_dissector_classification/ipip:OK #102/4 flow_dissector_classification/gre:OK #102/5 flow_dissector_classification/port_range:OK #102/6 flow_dissector_classification/ipv6:OK #102 flow_dissector_classification:OK Summary: 1/6 PASSED, 0 SKIPPED, 0 FAILED Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Link: https://patch.msgid.link/20250218043210.732959-5-xiyou.wangcong@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-19selftests/net/forwarding: Add a test case for tc-flower of mixed port and ↵Cong Wang
port-range After this patch: # ./tc_flower_port_range.sh TEST: Port range matching - IPv4 UDP [ OK ] TEST: Port range matching - IPv4 TCP [ OK ] TEST: Port range matching - IPv6 UDP [ OK ] TEST: Port range matching - IPv6 TCP [ OK ] TEST: Port range matching - IPv4 UDP Drop [ OK ] Cc: Qiang Zhang <dtzq01@gmail.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Tested-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20250218043210.732959-3-xiyou.wangcong@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-19selftests: fib_rule_tests: Add port mask match testsIdo Schimmel
Add tests for FIB rules that match on source and destination ports with a mask. Test both good and bad flows. # ./fib_rule_tests.sh IPv6 FIB rule tests [...] TEST: rule6 check: sport and dport redirect to table [ OK ] TEST: rule6 check: sport and dport no redirect to table [ OK ] TEST: rule6 del by pref: sport and dport redirect to table [ OK ] TEST: rule6 check: sport and dport range redirect to table [ OK ] TEST: rule6 check: sport and dport range no redirect to table [ OK ] TEST: rule6 del by pref: sport and dport range redirect to table [ OK ] TEST: rule6 check: sport and dport masked redirect to table [ OK ] TEST: rule6 check: sport and dport masked no redirect to table [ OK ] TEST: rule6 del by pref: sport and dport masked redirect to table [ OK ] [...] Tests passed: 292 Tests failed: 0 Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20250217134109.311176-9-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-19selftests: fib_rule_tests: Add port range match testsIdo Schimmel
Currently, only matching on specific ports is tested. Add port range testing to make sure this use case does not regress. Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20250217134109.311176-8-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-19pm: cpupower: bench: Prevent NULL dereference on malloc failureZhongqiu Han
If malloc returns NULL due to low memory, 'config' pointer can be NULL. Add a check to prevent NULL dereference. Link: https://lore.kernel.org/r/20250219122715.3892223-1-quic_zhonhan@quicinc.com Signed-off-by: Zhongqiu Han <quic_zhonhan@quicinc.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-02-19selftests/bpf: Add rto max for bpf_setsockopt testJason Xing
Test the TCP_RTO_MAX_MS optname in the existing setget_sockopt test. Signed-off-by: Jason Xing <kerneljasonxing@gmail.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20250219081333.56378-3-kerneljasonxing@gmail.com
2025-02-19selftests/ovl: add third selftest for "override_creds"Christian Brauner
Add a simple test to verify that the new "override_creds" option works. Link: https://lore.kernel.org/r/20250219-work-overlayfs-v3-4-46af55e4ceda@kernel.org Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-02-19selftests/ovl: add second selftest for "override_creds"Christian Brauner
Add a simple test to verify that the new "override_creds" option works. Link: https://lore.kernel.org/r/20250219-work-overlayfs-v3-3-46af55e4ceda@kernel.org Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-02-19selftests/filesystems: add utils.{c,h}Christian Brauner
Add a new set of helpers that will be used in follow-up patches. Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-02-19selftests/ovl: add first selftest for "override_creds"Christian Brauner
Add a simple test to verify that the new "override_creds" option works. Link: https://lore.kernel.org/r/20250219-work-overlayfs-v3-2-46af55e4ceda@kernel.org Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-02-18selftests: net: Fix few spelling mistakesChandra Mohan Sundar
Fix few spelling mistakes in net selftests Signed-off-by: Chandra Mohan Sundar <chandru.dav@gmail.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Link: https://patch.msgid.link/20250217141520.81033-1-chandru.dav@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-18selftests: bpf: test batch lookup on array of maps with holesYan Zhai
Iterating through array of maps may encounter non existing keys. The batch operation should not fail on when this happens. Signed-off-by: Yan Zhai <yan@cloudflare.com> Acked-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/r/9007237b9606dc2ee44465a4447fe46e13f3bea6.1739171594.git.yan@cloudflare.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-02-18kunit: tool: Build GDB scriptsBrendan Jackman
Following a similar rationale as commit e4835f1da425f ("kunit: tool: Build compile_commands.json"), make a common developer tool available by default for KUnit users. Compared to compile_commands.json, there is a little more work to be done to build the GDB scripts. Is it enough to affect development cycle duration? Unscientific evaluation: rm -rf .kunit; time tools/testing/kunit/kunit.py build --kunitconfig ./lib/kunit/.kunitconfig --jobs 96 Without this patch it took 14.77s, with this patch it took 14.83. So, although `make scripts_gdb` is pretty slow, presumably most of that is just the overhead of running Kbuild at all, actually building the scripts is approximately free. Note also, to actually get the GDB scripts the user needs to enable CONFIG_SCRIPTS_GDB, but building the scripts_gdb target without that is still harmless. Link: https://lore.kernel.org/r/20250121-kunit-gdb-v1-1-faedfd0653ef@google.com Signed-off-by: Brendan Jackman <jackmanb@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-02-18tools: Remove redundant quiet setupCharlie Jenkins
Q is exported from Makefile.include so it is not necessary to manually set it. Reviewed-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> Acked-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Quentin Monnet <qmo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Benjamin Tissoires <bentiss@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Eduard Zingerman <eddyz87@gmail.com> Cc: Hao Luo <haoluo@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: John Fastabend <john.fastabend@gmail.com> Cc: Josh Poimboeuf <jpoimboe@kernel.org> Cc: KP Singh <kpsingh@kernel.org> Cc: Lukasz Luba <lukasz.luba@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Martin KaFai Lau <martin.lau@linux.dev> Cc: Mykola Lysenko <mykolal@fb.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Song Liu <song@kernel.org> Cc: Stanislav Fomichev <sdf@google.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Yonghong Song <yonghong.song@linux.dev> Cc: Zhang Rui <rui.zhang@intel.com> Link: https://lore.kernel.org/r/20250213-quiet_tools-v3-2-07de4482a581@rivosinc.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2025-02-18sched_ext: idle: Introduce node-aware idle cpu kfunc helpersAndrea Righi
Introduce a new kfunc to retrieve the node associated to a CPU: int scx_bpf_cpu_node(s32 cpu) Add the following kfuncs to provide BPF schedulers direct access to per-node idle cpumasks information: const struct cpumask *scx_bpf_get_idle_cpumask_node(int node) const struct cpumask *scx_bpf_get_idle_smtmask_node(int node) s32 scx_bpf_pick_idle_cpu_node(const cpumask_t *cpus_allowed, int node, u64 flags) s32 scx_bpf_pick_any_cpu_node(const cpumask_t *cpus_allowed, int node, u64 flags) Moreover, trigger an scx error when any of the non-node aware idle CPU kfuncs are used when SCX_OPS_BUILTIN_IDLE_PER_NODE is enabled. Cc: Yury Norov [NVIDIA] <yury.norov@gmail.com> Signed-off-by: Andrea Righi <arighi@nvidia.com> Reviewed-by: Yury Norov [NVIDIA] <yury.norov@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2025-02-18tools: Unify top-level quiet infrastructureCharlie Jenkins
Commit f2868b1a66d4f40f ("perf tools: Expose quiet/verbose variables in Makefile.perf") moved the quiet infrastructure out of tools/build/Makefile.build and into the top-level Makefile.perf file so that the quiet infrastructure could be used throughout perf and not just in Makefile.build. Extract out the quiet infrastructure into Makefile.include so that it can be leveraged outside of perf. Fixes: f2868b1a66d4f40f ("perf tools: Expose quiet/verbose variables in Makefile.perf") Reviewed-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> Acked-by: Andrii Nakryiko <andrii@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Benjamin Tissoires <bentiss@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Eduard Zingerman <eddyz87@gmail.com> Cc: Hao Luo <haoluo@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: John Fastabend <john.fastabend@gmail.com> Cc: Josh Poimboeuf <jpoimboe@kernel.org> Cc: KP Singh <kpsingh@kernel.org> Cc: Lukasz Luba <lukasz.luba@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Martin KaFai Lau <martin.lau@linux.dev> Cc: Mykola Lysenko <mykolal@fb.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quentin Monnet <qmo@kernel.org> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Song Liu <song@kernel.org> Cc: Stanislav Fomichev <sdf@google.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Yonghong Song <yonghong.song@linux.dev> Cc: Zhang Rui <rui.zhang@intel.com> Link: https://lore.kernel.org/r/20250213-quiet_tools-v3-1-07de4482a581@rivosinc.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2025-02-18selftests: test_vxlan_fdb_changelink: Add a test for MC remote changePetr Machata
Changes to MC remote need to be reflected in actual group memberships. Add a test to verify that it is the case. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-02-18selftests: test_vxlan_fdb_changelink: Convert to lib.shPetr Machata
Instead of inlining equivalents, use lib.sh-provided primitives. Use defer to manage vx lifetime. This will make it easier to extend the test in the next patch. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-02-18selftests: forwarding: lib: Move require_command to net, generalizePetr Machata
This helper could be useful to more than just forwarding tests. Move it upstairs and port over to log_test_skip(). Split the function into two parts: the bit that actually checks and reports skip, which is in a new function check_command(). And a bit that exits the test script if the check fails. This allows users consistent checking behavior while giving an option to bail out from a single test without bailing out of the whole script. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-02-18selftest/bpf: Add vsock test for sockmap rejecting unconnectedMichal Luczaj
Verify that for a connectible AF_VSOCK socket, merely having a transport assigned is insufficient; socket must be connected for the sockmap to accept. This does not test datagram vsocks. Even though it hardly matters. VMCI is the only transport that features VSOCK_TRANSPORT_F_DGRAM, but it has an unimplemented vsock_transport::readskb() callback, making it unsupported by BPF/sockmap. Signed-off-by: Michal Luczaj <mhal@rbox.co> Acked-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-02-18selftest/bpf: Adapt vsock_delete_on_close to sockmap rejecting unconnectedMichal Luczaj
Commit 515745445e92 ("selftest/bpf: Add test for vsock removal from sockmap on close()") added test that checked if proto::close() callback was invoked on AF_VSOCK socket release. I.e. it verified that a close()d vsock does indeed get removed from the sockmap. It was done simply by creating a socket pair and attempting to replace a close()d one with its peer. Since, due to a recent change, sockmap does not allow updating index with a non-established connectible vsock, redo it with a freshly established one. Signed-off-by: Michal Luczaj <mhal@rbox.co> Acked-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-02-18Merge tag 'v6.14-rc3' into x86/core, to pick up fixesIngo Molnar
Pick up upstream x86 fixes before applying new patches. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2025-02-17selftests/mm: fix check for running THP testsMark Brown
When testing if we should try to compact memory or drop caches before we run the THP or HugeTLB tests we use | as an or operator. This doesn't work since run_vmtests.sh is written in shell where this is used to pipe the output of the first argument into the second. Instead use the shell's -o operator. Link: https://lkml.kernel.org/r/20250212-kselftest-mm-no-hugepages-v1-1-44702f538522@kernel.org Fixes: b433ffa8dbac ("selftests: mm: perform some system cleanup before using hugepages") Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Nico Pache <npache@redhat.com> Cc: Mariano Pache <npache@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-02-17getdelays: fix error format charactersWang Yaxin
getdelays had a compilation issue because the format string was not updated when the "delay min" was added. For example, after adding the "delay min" in printf, there were 7 strings but only 6 "%s" format specifiers. Similarly, after adding the 't->cpu_delay_total', there were 7 variables but only 6 format characters specifiers, causing compilation issues as follows. This commit fixes these issues to ensure that getdelays compiles correctly. root@xx:~/linux-next/tools/accounting$ make getdelays.c:199:9: warning: format `%llu' expects argument of type `long long unsigned int', but argument 8 has type `char *' [-Wformat=] 199 | printf("\n\nCPU %15s%15s%15s%15s%15s%15s\n" | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ..... 216 | "delay total", "delay average", "delay max", "delay min", | ~~~~~~~~~~~ | | | char * getdelays.c:200:21: note: format string is defined here 200 | " %15llu%15llu%15llu%15llu%15.3fms%13.6fms\n" | ~~~~~^ | | | long long unsigned int | %15s getdelays.c:199:9: warning: format `%f' expects argument of type `double', but argument 12 has type `long long unsigned int' [-Wformat=] 199 | printf("\n\nCPU %15s%15s%15s%15s%15s%15s\n" | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ..... 220 | (unsigned long long)t->cpu_delay_total, | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | long long unsigned int ..... Link: https://lkml.kernel.org/r/20250208144400544RduNRhwIpT3m2JyRBqskZ@zte.com.cn Fixes: f65c64f311ee ("delayacct: add delay min to record delay peak") Reviewed-by: xu xin <xu.xin16@zte.com.cn> Signed-off-by: Wang Yaxin <wang.yaxin@zte.com.cn> Signed-off-by: Kun Jiang <jiang.kun2@zte.com.cn> Cc: Balbir Singh <bsingharora@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: Fan Yu <fan.yu9@zte.com.cn> Cc: Peilin He <he.peilin@zte.com.cn> Cc: Qiang Tu <tu.qiang35@zte.com.cn> Cc: wangyong <wang.yong12@zte.com.cn> Cc: ye xingchen <ye.xingchen@zte.com.cn> Cc: Yunkai Zhang <zhang.yunkai@zte.com.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-02-17tools/mm: fix build warnings with musl-libcFlorian Fainelli
musl-libc warns about the following: /home/florian/dev/buildroot/output/arm64/rpi4-b/host/aarch64-buildroot-linux-musl/sysroot/usr/include/sys/errno.h:1:2: attention: #warning redirecting incorrect #include <sys/errno.h> to <errno.h> [-Wcpp] 1 | #warning redirecting incorrect #include <sys/errno.h> to <errno.h> | ^~~~~~~ /home/florian/dev/buildroot/output/arm64/rpi4-b/host/aarch64-buildroot-linux-musl/sysroot/usr/include/sys/fcntl.h:1:2: attention: #warning redirecting incorrect #include <sys/fcntl.h> to <fcntl.h> [-Wcpp] 1 | #warning redirecting incorrect #include <sys/fcntl.h> to <fcntl.h> | ^~~~~~~ include errno.h and fcntl.h directly. Link: https://lkml.kernel.org/r/20250210200518.1137295-1-florian.fainelli@broadcom.com Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-02-17selftests: drv-net: Test queue xsk attributeJoe Damato
Test that queues which are used for AF_XDP have the xsk nest attribute. The attribute is currently empty, but its existence means the AF_XDP is being used for the queue. Enable CONFIG_XDP_SOCKETS for selftests/drivers/net tests, as well. Signed-off-by: Joe Damato <jdamato@fastly.com> Suggested-by: Jakub Kicinski <kuba@kernel.org> Link: https://patch.msgid.link/20250214211255.14194-4-jdamato@fastly.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-17netdev-genl: Add an XSK attribute to queuesJoe Damato
Expose a new per-queue nest attribute, xsk, which will be present for queues that are being used for AF_XDP. If the queue is not being used for AF_XDP, the nest will not be present. In the future, this attribute can be extended to include more data about XSK as it is needed. Signed-off-by: Joe Damato <jdamato@fastly.com> Suggested-by: Jakub Kicinski <kuba@kernel.org> Link: https://patch.msgid.link/20250214211255.14194-3-jdamato@fastly.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-17selftests: net: add support for testing SO_RCVMARK and SO_RCVPRIORITYAnna Emese Nyiri
Introduce tests to verify the correct functionality of the SO_RCVMARK and SO_RCVPRIORITY socket options. Suggested-by: Jakub Kicinski <kuba@kernel.org> Suggested-by: Ferenc Fejes <fejes@inf.elte.hu> Signed-off-by: Anna Emese Nyiri <annaemesenyiri@gmail.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Tested-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20250214205828.48503-1-annaemesenyiri@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-17selftests: net: fix grammar in reuseaddr_ports_exhausted.c log messagePranav Tyagi
This patch fixes a grammatical error in a test log message in reuseaddr_ports_exhausted.c for better clarity. Signed-off-by: Pranav Tyagi <pranav.tyagi03@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250213152612.4434-1-pranav.tyagi03@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
generated by cgit (git 2.34.1) at 2025-09-16 16:41:19 +0000