Commit Graph

21684 Commits

Author SHA1 Message Date
Yong Wang
aea45363e2 selftests: net/bridge : add tests for per vlan snooping with stp state changes
Change ALL_TESTS definition to "test-per-line".

Add the test case of per vlan snooping with port stp state change to
forwarding and also vlan equivalent case in both bridge_igmp.sh and
bridge_mld.sh.

Signed-off-by: Yong Wang <yongwang@nvidia.com>
Reviewed-by: Andy Roulin <aroulin@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2025-04-23 13:02:20 +01:00
Feng Yang
9b72f3e5b7 selftests/bpf: Add test for attaching kprobe with long event names
This test verifies that attaching kprobe/kretprobe with long event names
does not trigger EINVAL errors.

Signed-off-by: Feng Yang <yangfeng@kylinos.cn>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250417014848.59321-4-yangfeng59949@163.com
2025-04-22 17:13:37 -07:00
Feng Yang
e1be7c45d2 selftests/bpf: Add test for attaching uprobe with long event names
This test verifies that attaching uprobe/uretprobe with long event names
does not trigger EINVAL errors.

Signed-off-by: Feng Yang <yangfeng@kylinos.cn>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250417014848.59321-3-yangfeng59949@163.com
2025-04-22 17:13:37 -07:00
Malaya Kumar Rout
be2fea9c07 selftests/bpf: Close the file descriptor to avoid resource leaks
Static analysis found an issue in bench_htab_mem.c and sk_assign.c

cppcheck output before this patch:
tools/testing/selftests/bpf/benchs/bench_htab_mem.c:284:3: error: Resource leak: fd [resourceLeak]
tools/testing/selftests/bpf/prog_tests/sk_assign.c:41:3: error: Resource leak: tc [resourceLeak]

cppcheck output after this patch:
No resource leaks found

Fix the issue by closing the file descriptors fd and tc.

Signed-off-by: Malaya Kumar Rout <malayarout91@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250421174405.26080-1-malayarout91@gmail.com
2025-04-22 14:29:58 -07:00
Mark Brown
4ea404fdbc lib: Ensure prime numbers tests are included in KUnit test runs
When the select of PRIME_MUMBERS was removed from it's KUnit test
Kconfig nothing was added to the KUnit configs, meaning that when run
via the KUnit runner the tests are neither built nor run.  Add
PRIME_NUMBERS to all_tests.config so they are enabled when the KUnit
runner builds the kernel.

Fixes: 3f2925174f ("lib/prime_numbers: KUnit test should not select PRIME_NUMBERS")
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20250422-lib-fix-prime-numbers-kunit-v1-1-4278c1d4a4ae@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
2025-04-22 08:48:10 -07:00
Thomas Weißschuh
e90ce42e81 tools/nolibc: implement width padding in printf()
printf can pad each argument to a certain width.
Implement this for compatibility with the kselftest harness.
Currently only padding with spaces is supported.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Acked-by: Willy Tarreau <w@1wt.eu>
2025-04-22 10:59:06 +02:00
Thomas Weißschuh
b0bd7760df selftests/nolibc: add test for snprintf() truncation
Now that we have a proper snprintf() implementation,
make sure truncation is handled properly.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Acked-by: Willy Tarreau <w@1wt.eu>
2025-04-22 10:59:06 +02:00
Thomas Weißschuh
6311e4893a selftests/nolibc: rename vfprintf test suite
With the addition of snprintf() and its usage in nolibc-test, the name of
the "vfprintf" test suite is not accurate anymore.

Rename the suite to be more generic.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Acked-by: Willy Tarreau <w@1wt.eu>
2025-04-22 10:59:05 +02:00
Thomas Weißschuh
c685cd6db5 selftests/nolibc: use snprintf() for printf tests
With a proper snprintf() implementation in place, the ugly pipe usage is
not necessary anymore.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Acked-by: Willy Tarreau <w@1wt.eu>
2025-04-22 10:59:04 +02:00
Thomas Weißschuh
4175b55845 Revert "selftests/nolibc: use waitid() over waitpid()"
nolibc's waitpid() now uses the waitid() syscall internally.
This removes the original reasoning for the reverted commit as
waitpid() is now available on all platforms and has an easier interface.

Switch back to waitpid().

This reverts commit a0bc8947ac.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Acked-by: Willy Tarreau <w@1wt.eu>
2025-04-22 10:58:22 +02:00
Thomas Weißschuh
9b070d97d9 tools/nolibc: add tolower() and toupper()
The kselftest harness uses these functions.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Acked-by: Willy Tarreau <w@1wt.eu>
2025-04-22 10:56:26 +02:00
Thomas Weißschuh
4c99fbc6a0 tools/nolibc: handle intmax_t/uintmax_t in printf
In nolibc intmax_t and uintmax_t are always the same as
(unsigned) long long/uint64_t as 128bit numbers are not supported.
Even libcs that do support 128bit numbers often fix intmax_t to 64bit
as it is used in ABIs and any change would break those.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Acked-by: Willy Tarreau <w@1wt.eu>
2025-04-22 10:56:23 +02:00
Jakub Kicinski
07e32237ed Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Martin KaFai Lau says:

====================
pull-request: bpf-next 2025-04-17

We've added 12 non-merge commits during the last 9 day(s) which contain
a total of 18 files changed, 1748 insertions(+), 19 deletions(-).

The main changes are:

1) bpf qdisc support, from Amery Hung.
   A qdisc can be implemented in bpf struct_ops programs and
   can be used the same as other existing qdiscs in the
   "tc qdisc" command.

2) Add xsk tail adjustment tests, from Tushar Vyavahare.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next:
  selftests/bpf: Test attaching bpf qdisc to mq and non root
  selftests/bpf: Add a bpf fq qdisc to selftest
  selftests/bpf: Add a basic fifo qdisc test
  libbpf: Support creating and destroying qdisc
  bpf: net_sched: Disable attaching bpf qdisc to non root
  bpf: net_sched: Support updating bstats
  bpf: net_sched: Add a qdisc watchdog timer
  bpf: net_sched: Add basic bpf qdisc kfuncs
  bpf: net_sched: Support implementation of Qdisc_ops in bpf
  bpf: Prepare to reuse get_ctx_arg_idx
  selftests/xsk: Add tail adjustment tests and support check
  selftests/xsk: Add packet stream replacement function
====================

Link: https://patch.msgid.link/20250417184338.3152168-1-martin.lau@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-21 18:51:08 -07:00
Alexei Starovoitov
5709be4c35 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after rc3
Cross-merge bpf and other fixes after downstream PRs.

No conflicts.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-04-21 08:04:38 -07:00
Christian Brauner
79beea2db0 fs: remove uselib() system call
This system call has been deprecated for quite a while now.
Let's try and remove it from the kernel completely.

Link: https://lore.kernel.org/20250415-kanufahren-besten-02ac00e6becd@brauner
Acked-by: Kees Cook <kees@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-04-21 10:27:59 +02:00
Linus Torvalds
fa6ad96dca Merge tag 'trace-v6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:

 - Initialize hash variables in ftrace subops logic

   The fix that simplified the ftrace subops logic opened a path where
   some variables could be used without being initialized, and done
   subtly where the compiler did not catch it. Initialize those
   variables to the EMPTY_HASH, which is the default hash.

 - Reinitialize the hash pointers after they are freed

   Some of the hash pointers in the subop logic were freed but may still
   be referenced later. To prevent use-after-free bugs, initialize them
   back to the EMPTY_HASH.

 - Free the ftrace hashes when they are replaced

   The fix that simplified the subops logic updated some hash pointers,
   but left the original hash that they were pointing to where they are
   no longer used. This caused a memory leak. Free the hashes that are
   pointed to by the pointers when they are replaced.

 - Fix size initialization of ftrace direct function hash

   The ftrace direct function hash used by BPF initialized the hash size
   incorrectly. It checked the size of items to a hard coded 32, which
   made the hash bit size of 5. The hash size is supposed to be limited
   by the bit size of the hash, as the bitmask is allowed to be greater
   than 5. Rework the size check to first pass the number of elements to
   fls() and then compare that to FTRACE_HASH_MAX_BITS before allocating
   the hash.

 - Fix format output of ftrace_graph_ent_entry event

   The field depth of the ftrace_graph_ent_entry event is of size 4 but
   the output showed it as unsigned long and use "%lu". Change it to
   unsigned int and use "%u" in the print format that is displayed to
   user space.

 - Fix the trace event filter on strings

   Events can be filtered on numbers or string values. The return value
   checked from strncpy_from_kernel_nofault() and
   strncpy_from_user_nofault() was used to determine if reading the
   strings would fault or not. It would return fault if the value was
   non zero, which is basically meant that it was always considering the
   read as a fault.

 - Add selftest to test trace event string filtering

   In order to catch the breakage of the string filtering, add a self
   test to make sure that it continues to work.

* tag 'trace-v6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: selftests: Add testing a user string to filters
  tracing: Fix filter string testing
  ftrace: Fix type of ftrace_graph_ent_entry.depth
  ftrace: fix incorrect hash size in register_ftrace_direct()
  ftrace: Free ftrace hashes after they are replaced in the subops code
  ftrace: Reinitialize hash to EMPTY_HASH after freeing
  ftrace: Initialize variables for ftrace_startup/shutdown_subops()
2025-04-19 11:57:36 -07:00
Thomas Weißschuh
8509b5c9fa selftests/nolibc: enable UBSAN if available
UBSAN detects undefined behaviour at runtime.
To avoid introduction of new UB, enable UBSAN for nolibc-test.

By signalling detected errors through traps no runtime dependency
is necessary.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/r/20250419-nolibc-ubsan-v2-7-060b8a016917@weissschuh.net
2025-04-19 14:18:16 +02:00
Thomas Weißschuh
6478251f95 selftests/nolibc: disable ubsan for smash_stack()
smash_stack() intentionally crashes.

Prevent UBSAN from tripping over it.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/r/20250419-nolibc-ubsan-v2-6-060b8a016917@weissschuh.net
2025-04-19 14:18:11 +02:00
Linus Torvalds
3bf8a4598f Merge tag 'hardening-v6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening fixes from Kees Cook:

 - lib/prime_numbers: KUnit test should not select PRIME_NUMBERS (Geert
   Uytterhoeven)

 - ubsan: Fix panic from test_ubsan_out_of_bounds (Mostafa Saleh)

 - ubsan: Remove 'default UBSAN' from UBSAN_INTEGER_WRAP (Nathan
   Chancellor)

 - string: Add load_unaligned_zeropad() code path to sized_strscpy()
   (Peter Collingbourne)

 - kasan: Add strscpy() test to trigger tag fault on arm64 (Vincenzo
   Frascino)

 - Disable GCC randstruct for COMPILE_TEST

* tag 'hardening-v6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  lib/prime_numbers: KUnit test should not select PRIME_NUMBERS
  ubsan: Fix panic from test_ubsan_out_of_bounds
  lib/Kconfig.ubsan: Remove 'default UBSAN' from UBSAN_INTEGER_WRAP
  hardening: Disable GCC randstruct for COMPILE_TEST
  kasan: Add strscpy() test to trigger tag fault on arm64
  string: Add load_unaligned_zeropad() code path to sized_strscpy()
2025-04-18 13:20:20 -07:00
Linus Torvalds
7f424c6690 Merge tag 'linux_kselftest-kunit-fixes-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kunit fix from Shuah Khan:
 "Fixes arch sh kunit qemu_configs script sh.py to honor kunit cmdline"

* tag 'linux_kselftest-kunit-fixes-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kunit: qemu_configs: SH: Respect kunit cmdline
2025-04-18 11:35:11 -07:00
Linus Torvalds
338d40ceef Merge tag 'linux_kselftest-fixes-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fix from Shuah Khan:
 "Fixes dynevent_limitations.tc test failure on dash by detecting and
  handling bash and dash differences in evaluating \\"

* tag 'linux_kselftest-fixes-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/ftrace: Differentiate bash and dash in dynevent_limitations.tc
2025-04-18 11:32:31 -07:00
Dave Jiang
dc915672f9 cxl: Fix devm host device for CXL fwctl initialization
Testing revealed the following error message for a CXL memdev that has
Feature support:
[   56.690430] cxl mem0: Resources present before probing

Attach the allocation of cxl_fwctl to the parent device of cxl_memdev.
devm_add_* calls for cxl_memdev should not happen before the memdev
probe function or outside the scope of the memdev driver.

cxl_test missed this bug because cxl_test always arranges for the
cxl_mem driver to be loaded before cxl_mock_mem runs. So the driver core
always finds the devres list idle in that case.

[DJ: Updated subject title and added commit log suggestion from djbw]

Fixes: 858ce2f56b ("cxl: Add FWCTL support to CXL")
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://lore.kernel.org/linux-cxl/6801aea053466_71fe2944c@dwillia2-xfh.jf.intel.com.notmuch/
Link: https://patch.msgid.link/20250418002933.406439-1-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-04-18 09:33:04 -07:00
Linus Torvalds
f7c2ca2584 Merge tag 'block-6.15-20250417' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:

 - MD pull via Yu:
      - fix raid10 missing discard IO accounting (Yu Kuai)
      - fix bitmap stats for bitmap file (Zheng Qixing)
      - fix oops while reading all member disks failed during
        check/repair (Meir Elisha)

 - NVMe pull via Christoph:
      - fix scan failure for non-ANA multipath controllers (Hannes
        Reinecke)
      - fix multipath sysfs links creation for some cases (Hannes
        Reinecke)
      - PCIe endpoint fixes (Damien Le Moal)
      - use NULL instead of 0 in the auth code (Damien Le Moal)

 - Various ublk fixes:
      - Slew of selftest additions
      - Improvements and fixes for IO cancelation
      - Tweak to Kconfig verbiage

 - Fix for page dirtying for blk integrity mapped pages

 - loop fixes:
      - buffered IO fix
      - uevent fixes
      - request priority inheritance fix

 - Various little fixes

* tag 'block-6.15-20250417' of git://git.kernel.dk/linux: (38 commits)
  selftests: ublk: add generic_06 for covering fault inject
  ublk: simplify aborting ublk request
  ublk: remove __ublk_quiesce_dev()
  ublk: improve detection and handling of ublk server exit
  ublk: move device reset into ublk_ch_release()
  ublk: rely on ->canceling for dealing with ublk_nosrv_dev_should_queue_io
  ublk: add ublk_force_abort_dev()
  ublk: properly serialize all FETCH_REQs
  selftests: ublk: move creating UBLK_TMP into _prep_test()
  selftests: ublk: add test_stress_05.sh
  selftests: ublk: support user recovery
  selftests: ublk: support target specific command line
  selftests: ublk: increase max nr_queues and queue depth
  selftests: ublk: set queue pthread's cpu affinity
  selftests: ublk: setup ring with IORING_SETUP_SINGLE_ISSUER/IORING_SETUP_DEFER_TASKRUN
  selftests: ublk: add two stress tests for zero copy feature
  selftests: ublk: run stress tests in parallel
  selftests: ublk: make sure _add_ublk_dev can return in sub-shell
  selftests: ublk: cleanup backfile automatically
  selftests: ublk: add io_uring uapi header
  ...
2025-04-18 09:21:14 -07:00
Steven Rostedt
d481ee3524 tracing: selftests: Add testing a user string to filters
Running the following commands was broken:

  # cd /sys/kernel/tracing
  # echo "filename.ustring ~ \"/proc*\"" > events/syscalls/sys_enter_openat/filter
  # echo 1 > events/syscalls/sys_enter_openat/enable
  # ls /proc/$$/maps
  # cat trace

And would produce nothing when it should have produced something like:

      ls-1192    [007] .....  8169.828333: sys_openat(dfd: ffffffffffffff9c, filename: 7efc18359904, flags: 80000, mode: 0)

Add a test to check this case so that it will be caught if it breaks
again.

Link: https://lore.kernel.org/linux-trace-kernel/20250417183003.505835fb@gandalf.local.home/

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/20250418101208.38dc81f5@gandalf.local.home
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2025-04-18 11:26:01 -04:00
Ilpo Järvinen
39e703ed3b selftests/pcie_bwctrl: Fix test progs list
Commit df6f8c4d72 ("selftests/pcie_bwctrl: Add 'set_pcie_speed.sh' to
TEST_PROGS") added set_pcie_speed.sh into TEST_PROGS but that script is a
helper that is only being called by set_pcie_cooling_state.sh, not a test
case itself. When set_pcie_speed.sh is in TEST_PROGS, selftest harness will
execute also it leading to bwctrl selftest errors:

  # selftests: pcie_bwctrl: set_pcie_speed.sh
  # cat: /cur_state: No such file or directory
  not ok 2 selftests: pcie_bwctrl: set_pcie_speed.sh # exit=1

Place set_pcie_speed.sh into TEST_FILES instead to have it included into
installed test files but not execute it from the test harness.

Fixes: df6f8c4d72 ("selftests/pcie_bwctrl: Add 'set_pcie_speed.sh' to TEST_PROGS")
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20250417124529.11391-1-ilpo.jarvinen@linux.intel.com
2025-04-18 08:23:22 -05:00
Jiri Olsa
fe8e5a3215 selftests/bpf: Add 5-byte NOP uprobe trigger benchmark
Add a 5-byte NOP uprobe trigger benchmark (x86_64 specific) to measure
uprobes/uretprobes on top of NOP5 instructions.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Alan Maguire <alan.maguire@oracle.com>
Link: https://lore.kernel.org/r/20250414083647.1234007-2-jolsa@kernel.org
2025-04-18 09:03:45 +02:00
Jakub Kicinski
240ce924d2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.15-rc3).

No conflicts. Adjacent changes:

tools/net/ynl/pyynl/ynl_gen_c.py
  4d07bbf2d4 ("tools: ynl-gen: don't declare loop iterator in place")
  7e8ba0c7de ("tools: ynl: don't use genlmsghdr in classic netlink")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-17 12:26:50 -07:00
Linus Torvalds
b5c6891b2c Merge tag 'net-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
 "Including fixes from Bluetooth, CAN and Netfilter.

  Current release - regressions:

   - two fixes for the netdev per-instance locking

   - batman-adv: fix double-hold of meshif when getting enabled

  Current release - new code bugs:

   - Bluetooth: increment TX timestamping tskey always for stream
     sockets

   - wifi: static analysis and build fixes for the new Intel sub-driver

  Previous releases - regressions:

   - net: fib_rules: fix iif / oif matching on L3 master (VRF) device

   - ipv6: add exception routes to GC list in rt6_insert_exception()

   - netfilter: conntrack: fix erroneous removal of offload bit

   - Bluetooth:
       - fix sending MGMT_EV_DEVICE_FOUND for invalid address
       - l2cap: process valid commands in too long frame
       - btnxpuart: Revert baudrate change in nxp_shutdown

  Previous releases - always broken:

   - ethtool: fix memory corruption during SFP FW flashing

   - eth:
       - hibmcge: fixes for link and MTU handling, pause frames etc
       - igc: fixes for PTM (PCIe timestamping)

   - dsa: b53: enable BPDU reception for management port

  Misc:

   - fixes for Netlink protocol schemas"

* tag 'net-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (81 commits)
  net: ethernet: mtk_eth_soc: revise QDMA packet scheduler settings
  net: ethernet: mtk_eth_soc: correct the max weight of the queue limit for 100Mbps
  net: ethernet: mtk_eth_soc: reapply mdc divider on reset
  net: ti: icss-iep: Fix possible NULL pointer dereference for perout request
  net: ti: icssg-prueth: Fix possible NULL pointer dereference inside emac_xmit_xdp_frame()
  net: ti: icssg-prueth: Fix kernel warning while bringing down network interface
  netfilter: conntrack: fix erronous removal of offload bit
  net: don't try to ops lock uninitialized devs
  ptp: ocp: fix start time alignment in ptp_ocp_signal_set
  net: dsa: avoid refcount warnings when ds->ops->tag_8021q_vlan_del() fails
  net: dsa: free routing table on probe failure
  net: dsa: clean up FDB, MDB, VLAN entries on unbind
  net: dsa: mv88e6xxx: fix -ENOENT when deleting VLANs and MST is unsupported
  net: dsa: mv88e6xxx: avoid unregistering devlink regions which were never registered
  net: txgbe: fix memory leak in txgbe_probe() error path
  net: bridge: switchdev: do not notify new brentries as changed
  net: b53: enable BPDU reception for management port
  netlink: specs: rt-neigh: prefix struct nfmsg members with ndm
  netlink: specs: rt-link: adjust mctp attribute naming
  netlink: specs: rtnetlink: attribute naming corrections
  ...
2025-04-17 11:45:30 -07:00
Amery Hung
2b7b5b7f10 selftests/bpf: Test attaching bpf qdisc to mq and non root
Until we are certain that existing classful qdiscs work with bpf qdisc,
make sure we don't allow attaching a bpf qdisc to non root. Meanwhile,
attaching to mq is allowed.

Signed-off-by: Amery Hung <ameryhung@gmail.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://patch.msgid.link/20250409214606.2000194-11-ameryhung@gmail.com
2025-04-17 10:54:41 -07:00
Amery Hung
2b59bd9e4e selftests/bpf: Add a bpf fq qdisc to selftest
This test implements a more sophisticated qdisc using bpf. The bpf fair-
queueing (fq) qdisc gives each flow an equal chance to transmit data. It
also respects the timestamp of skb for rate limiting.

Signed-off-by: Amery Hung <amery.hung@bytedance.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://patch.msgid.link/20250409214606.2000194-10-ameryhung@gmail.com
2025-04-17 10:54:41 -07:00
Amery Hung
11c701639b selftests/bpf: Add a basic fifo qdisc test
This selftest includes a bare minimum fifo qdisc, which simply enqueues
sk_buffs into the back of a bpf list and dequeues from the front of the
list.

Signed-off-by: Amery Hung <amery.hung@bytedance.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://patch.msgid.link/20250409214606.2000194-9-ameryhung@gmail.com
2025-04-17 10:54:41 -07:00
Antonio Quartulli
959bc330a4 testing/selftests: add test tool and scripts for ovpn module
The ovpn-cli tool can be compiled and used as selftest for the ovpn
kernel module.

[NOTE: it depends on libmedtls for decoding base64-encoded keys]

ovpn-cli implements the netlink and RTNL APIs and can thus be integrated
in any script for more automated testing.

Along with the tool, a bunch of scripts are provided that perform basic
functionality tests by means of network namespaces.
These scripts take part to the kselftest automation.

The output of the scripts, which will appear in the kselftest
reports, is a list of steps performed by the scripts plus some
output coming from the execution of `ping`, `iperf` and `ovpn-cli`
itself.
In general it is useful only in case of failure, in order to
understand which step has failed and why.

Please note: since peer sockets are tied to the userspace
process that created them (i.e. exiting the process will result
in closing the socket), every run of ovpn-cli that created
one will go to background and enter pause(), waiting for the
signal which will allow it to terminate.
Termination is accomplished at the end of each script by
issuing a killall command.

Cc: linux-kselftest@vger.kernel.org
Cc: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
Link: https://patch.msgid.link/20250415-b4-ovpn-v26-23-577f6097b964@openvpn.net
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-17 12:30:04 +02:00
Linus Torvalds
cfb2e2c57a Merge tag 'mm-hotfixes-stable-2025-04-16-19-59' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc hotfixes from Andrew Morton:
 "31 hotfixes.

  9 are cc:stable and the remainder address post-6.15 issues or aren't
  considered necessary for -stable kernels.

  22 patches are for MM, 9 are otherwise"

* tag 'mm-hotfixes-stable-2025-04-16-19-59' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (31 commits)
  MAINTAINERS: update HUGETLB reviewers
  mm: fix apply_to_existing_page_range()
  selftests/mm: fix compiler -Wmaybe-uninitialized warning
  alloc_tag: handle incomplete bulk allocations in vm_module_tags_populate
  mailmap: add entry for Jean-Michel Hautbois
  mm: (un)track_pfn_copy() fix + doc improvements
  mm: fix filemap_get_folios_contig returning batches of identical folios
  mm/hugetlb: add a line break at the end of the format string
  selftests: mincore: fix tmpfs mincore test failure
  mm/hugetlb: fix set_max_huge_pages() when there are surplus pages
  mm/cma: report base address of single range correctly
  mm: page_alloc: speed up fallbacks in rmqueue_bulk()
  kunit: slub: add module description
  mm/kasan: add module decription
  ucs2_string: add module description
  zlib: add module description
  fpga: tests: add module descriptions
  samples/livepatch: add module descriptions
  ASN.1: add module description
  mm/vma: add give_up_on_oom option on modify/merge, use in uffd release
  ...
2025-04-16 20:07:32 -07:00
Uday Shankar
81586652bb selftests: ublk: add generic_06 for covering fault inject
Add one simple fault inject target, and verify if an application using ublk
device sees an I/O error quickly after the ublk server dies.

Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250416035444.99569-9-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-16 19:33:21 -06:00
Ming Lei
3bf540609c selftests: ublk: move creating UBLK_TMP into _prep_test()
test may exit early because of missing program or not having required
feature before calling _prep_test(), then $UBLK_TMP isn't cleaned.

Fix it by moving creating $UBLK_TMP into _prep_test(), any resources
created since _prep_test() will be cleaned by _cleanup_test().

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250412023035.2649275-14-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-16 19:32:18 -06:00
Ming Lei
2f9a30bd16 selftests: ublk: add test_stress_05.sh
Add test_stress_05.sh for covering removing device with recovery
enabled.

io-hang has been observed with the following patch:

https://lore.kernel.org/linux-block/20250403-ublk_timeout-v3-1-aa09f76c7451@purestorage.com/

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250412023035.2649275-13-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-16 19:32:18 -06:00
Ming Lei
57e13a2e8c selftests: ublk: support user recovery
Add user recovery feature.

Meantime add user recovery test: generic_04 and generic_05(zero copy)

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250412023035.2649275-12-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-16 19:32:18 -06:00
Ming Lei
810b88f3dc selftests: ublk: support target specific command line
Support target specific command line for making related command line code
handling more readable & clean.

Also helps for adding new features.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250412023035.2649275-11-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-16 19:32:18 -06:00
Ming Lei
6c62fd04e8 selftests: ublk: increase max nr_queues and queue depth
Increase max nr_queues to 32, and queue depth to 1024.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250412023035.2649275-10-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-16 19:32:18 -06:00
Ming Lei
2f0a692a93 selftests: ublk: set queue pthread's cpu affinity
In NUMA machine, ublk IO performance is very sensitive with queue
pthread's affinity setting.

Retrieve queue's affinity and select the 1st cpu as queue thread's sched
affinity, and it is observed that single cpu task affinity can get
stable & good performance if client application is put on proper cpu.

Dump this info when adding one ublk device. Use shmem to communicate
queue's tid between parent and daemon.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250412023035.2649275-9-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-16 19:32:18 -06:00
Ming Lei
62867a046a selftests: ublk: setup ring with IORING_SETUP_SINGLE_ISSUER/IORING_SETUP_DEFER_TASKRUN
It is observed that this way is more efficient for fast nvme backing
file.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250412023035.2649275-8-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-16 19:32:18 -06:00
Ming Lei
d836590d9a selftests: ublk: add two stress tests for zero copy feature
Add stress_03 & stress_04 for covering zero copy feature.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250412023035.2649275-7-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-16 19:32:18 -06:00
Ming Lei
bb2cabf235 selftests: ublk: run stress tests in parallel
Run stress tests in parallel, meantime add shell local function to
simplify the two stress tests.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250412023035.2649275-6-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-16 19:32:18 -06:00
Ming Lei
573840ab90 selftests: ublk: make sure _add_ublk_dev can return in sub-shell
Detach ublk daemon from the starting process completely by double-fork and
clearing its process group, so that `_add_ublk_dev` can return from sub-shell.

Then it is more friendly for writing shell test script for adding/recovering
ublk device.

Prepare for running ublk test in parallel.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250412023035.2649275-5-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-16 19:32:18 -06:00
Ming Lei
8d31a7e505 selftests: ublk: cleanup backfile automatically
Use global array of $UBLK_BACKFILES for storing all backfile name, then
clean them automatically.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250412023035.2649275-4-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-16 19:32:18 -06:00
Ming Lei
9cad26d66b selftests: ublk: add io_uring uapi header
Add io_uring UAPI header so that ublk can work with latest uapi
definition.

Fix the following build failure:

stripe.c: In function ‘stripe_to_uring_op’:
stripe.c:120:29: error: ‘IORING_OP_READV_FIXED’ undeclared (first use in this function); did you mean ‘IORING_OP_READ_FIXED’?
  120 |                 return zc ? IORING_OP_READV_FIXED : IORING_OP_READV;
      |                             ^~~~~~~~~~~~~~~~~~~~~
      |                             IORING_OP_READ_FIXED

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Fixes: 57ed58c132 ("selftests: ublk: enable zero copy for stripe target")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250412023035.2649275-3-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-16 19:32:18 -06:00
Ming Lei
ec12009318 selftests: ublk: fix ublk_find_tgt()
Bounds check for iterator variable `i` is missed, so add it and fix
ublk_find_tgt().

Cc: Johannes Thumshirn <Johannes.Thumshirn@wdc.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250412023035.2649275-2-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-16 19:32:18 -06:00
Steven Rostedt
07be53cfa8 selftests/ftrace: Differentiate bash and dash in dynevent_limitations.tc
bash and dash evaluate variables differently.
dash will evaluate '\\' every time it is read whereas bash does not.

  TEST_STRING="$TEST_STRING \\$i"
  echo $TEST_STRING

With i=123
On bash, that will print "\123"
but on dash, that will print the escape sequence of \123 as the \ will be
interpreted again in the echo.

The dynevent_limitations.tc test created a very large list of arguments to
test the maximum number of arguments to pass to the dynamic events file.
It had a loop of:

   TEST_STRING=$1
   # Acceptable
   for i in `seq 1 $MAX_ARGS`; do
     TEST_STRING="$TEST_STRING \\$i"
   done
   echo "$TEST_STRING" >> dynamic_events

This worked fine on bash, but when run on dash it failed.

This was due to dash interpreting the "\\$i" twice. Once when it was
assigned to TEST_STRING and a second time with the echo $TEST_STRING.

bash does not process the backslash more than the first time.

To solve this, assign a double backslash to a variable "bs" and then echo
it to "ts". If "ts" changes, it is dash, if not, it is bash. Then update
"bs" accordingly, and use that to assign TEST_STRING.

Now this could possibly just check if "$BASH" is defined or not, but this
is testing if the issue exists and not just which shell is being used.

Link: https://lore.kernel.org/r/20250414210900.4de5e8b9@gandalf.local.home
Fixes: 581a7b26ab ("selftests/ftrace: Add dynamic events argument limitation test case")
Reported-by: Mark Brown <broonie@kernel.org>
Closes: https://lore.kernel.org/all/350786cc-9e40-4396-ab95-4f10d69122fb@sirena.org.uk/
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-04-16 12:47:41 -06:00
David Gow
1d31d53687 kunit: qemu_configs: Disable faulting tests on 32-bit SPARC
The 32-bit sparc configuration (--arch sparc) crashes on
the kunit_fault_test. It's known that some architectures don't handle
deliberate segfaults in kernel mode well, so there's a config switch to
disable tests which rely upon it by default.

Use this for the sparc config, making sure the default config for it
passes.

Link: https://lore.kernel.org/r/20250416093826.1550040-1-davidgow@google.com
Fixes: 87c9c16317 ("kunit: tool: add support for QEMU")
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Tested-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-04-16 12:42:44 -06:00
Thomas Weißschuh
8fe34da631 kunit: qemu_configs: Add 64-bit SPARC configuration
Add a basic config to run kunit tests on 64-bit SPARC.

Link: https://lore.kernel.org/r/20250415-kunit-qemu-sparc64-v1-2-253906f61102@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>
2025-04-16 12:42:37 -06:00