Commit Graph

18703 Commits

Author SHA1 Message Date
Jordan Rife
c58dcc1dbe selftests/bpf: Add tests for bucket resume logic in UDP socket iterators
Introduce a set of tests that exercise various bucket resume scenarios:

* remove_seen resumes iteration after removing a socket from the bucket
  that we've already processed. Before, with the offset-based approach,
  this test would have skipped an unseen socket after resuming
  iteration. With the cookie-based approach, we now see all sockets
  exactly once.
* remove_unseen exercises the condition where the next socket that we
  would have seen is removed from the bucket before we resume iteration.
  This tests the scenario where we need to scan past the first cookie in
  our remembered cookies list to find the socket from which to resume
  iteration.
* remove_all exercises the condition where all sockets we remembered
  were removed from the bucket to make sure iteration terminates and
  returns no more results.
* add_some exercises the condition where a few, but not enough to
  trigger a realloc, sockets are added to the head of the current bucket
  between reads. Before, with the offset-based approach, this test would
  have repeated sockets we've already seen. With the cookie-based
  approach, we now see all sockets exactly once.
* force_realloc exercises the condition that we need to realloc the
  batch on a subsequent read, since more sockets than can be held in the
  current batch array were added to the current bucket. This exercies
  the logic inside bpf_iter_udp_realloc_batch that copies cookies into
  the new batch to make sure nothing is skipped or repeated.

Signed-off-by: Jordan Rife <jordan@jrife.io>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2025-05-02 12:07:53 -07:00
Jordan Rife
4a0614e18c selftests/bpf: Return socket cookies from sock_iter_batch progs
Extend the iter_udp_soreuse and iter_tcp_soreuse programs to write the
cookie of the current socket, so that we can track the identity of the
sockets that the iterator has seen so far. Update the existing do_test
function to account for this change to the iterator program output. At
the same time, teach both programs to work with AF_INET as well.

Signed-off-by: Jordan Rife <jordan@jrife.io>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2025-05-02 12:07:53 -07:00
Feng Yang
1ce65102d2 selftests/bpf: Fix compilation errors
If the CONFIG_NET_SCH_BPF configuration is not enabled,
the BPF test compilation will report the following error:
In file included from progs/bpf_qdisc_fq.c:39:
progs/bpf_qdisc_common.h:17:51: error: declaration of 'struct bpf_sk_buff_ptr' will not be visible outside of this function [-Werror,-Wvisibility]
   17 | void bpf_qdisc_skb_drop(struct sk_buff *p, struct bpf_sk_buff_ptr *to_free) __ksym;
      |                                                   ^
progs/bpf_qdisc_fq.c:309:14: error: declaration of 'struct bpf_sk_buff_ptr' will not be visible outside of this function [-Werror,-Wvisibility]
  309 |              struct bpf_sk_buff_ptr *to_free)
      |                     ^
progs/bpf_qdisc_fq.c:309:14: error: declaration of 'struct bpf_sk_buff_ptr' will not be visible outside of this function [-Werror,-Wvisibility]
progs/bpf_qdisc_fq.c:308:5: error: conflicting types for '____bpf_fq_enqueue'

Fixes: 11c701639b ("selftests/bpf: Add a basic fifo qdisc test")
Signed-off-by: Feng Yang <yangfeng@kylinos.cn>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20250428033445.58113-1-yangfeng59949@163.com
2025-04-29 13:47:28 -07:00
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
Jakub Kicinski
07e32237ed bpf-next-for-netdev
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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
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 Including fixes from Bluetooth, CAN and Netfilter.
Current release - regressions:
 
  - 2 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.
 
  - eth: igc: fixes for PTM (PCIe timestamping)
 
  - dsa: b53: enable BPDU reception for management port
 
 Misc:
 
  - fixes for Netlink protocol schemas
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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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 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.
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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
Ido Schimmel
f9c87590ed selftests: fib_rule_tests: Add VRF match tests
Add tests for FIB rules that match on iif / oif being a VRF device. Test
both good and bad flows.

With previous patch ("net: fib_rules: Fix iif / oif matching on L3
master device"):

 # ./fib_rule_tests.sh
 [...]
 Tests passed: 328
 Tests failed:   0

Without it:

 # ./fib_rule_tests.sh
 [...]
 Tests passed: 324
 Tests failed:   4

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250414172022.242991-3-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-15 17:54:57 -07:00
zhenwei pi
a862771d1a selftests: mptcp: use IPPROTO_MPTCP for getaddrinfo
mptcp_connect.c is a startup tutorial of MPTCP programming, however
there is a lack of ai_protocol(IPPROTO_MPTCP) usage. Add comment for
getaddrinfo MPTCP support.

This patch first uses IPPROTO_MPTCP to get addrinfo, and if glibc
version is too old, it falls back to using IPPROTO_TCP.

Co-developed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250413-net-next-mptcp-sched-mib-sft-misc-v2-8-0f83a4350150@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-15 08:21:47 -07:00
Geliang Tang
f9c7504d30 selftests: mptcp: diag: drop nlh parameter of recv_nlmsg
It's strange that 'nlh' variable is set to NULL in get_mptcpinfo() and then
this NULL pointer is passed to recv_nlmsg(). In fact, this variable should
be defined in recv_nlmsg(), not get_mptcpinfo().

So this patch drops this useless 'nlh' parameter of recv_nlmsg() and define
'nlh' variable in recv_nlmsg().

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250413-net-next-mptcp-sched-mib-sft-misc-v2-7-0f83a4350150@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-15 08:21:47 -07:00
Matthieu Baerts (NGI0)
98dea4fd63 selftests: mptcp: validate MPJoinRejected counter
The parent commit adds this new counter, incremented when receiving a
connection request, if the PM didn't allow the creation of new subflows.

Most of the time, it is then kept at 0, except when the PM limits cause
the receiver side to reject new MPJoin connections. This is the case in
the following tests:

 - single subflow, limited by server
 - multiple subflows, limited by server
 - subflows limited by server w cookies
 - userspace pm type rejects join
 - userspace pm type prevents mp_prio

Simply set join_syn_rej=1 when checking the MPJoin counters for these
tests.

Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250413-net-next-mptcp-sched-mib-sft-misc-v2-6-0f83a4350150@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-15 08:21:47 -07:00
Linus Torvalds
051ea726ee memblock: fix build of memblock test
Add missing stubs for mutex and free_reserved_area() to memblock tests
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Merge tag 'fixes-2025-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock

Pull memblock fix from Mike Rapoport:
 "Fix build of memblock test.

  Add missing stubs for mutex and free_reserved_area() to memblock
  tests"

* tag 'fixes-2025-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
  memblock tests: Fix mutex related build error
2025-04-13 07:11:33 -07:00
Linus Torvalds
7cdabafc00 tracing fixes for v6.15
- Hide get_vm_area() from MMUless builds
 
   The function get_vm_area() is not defined when CONFIG_MMU is not defined.
   Hide that function within #ifdef CONFIG_MMU.
 
 - Fix output of synthetic events when they have dynamic strings
 
   The print fmt of the synthetic event's format file use to have "%.*s" for
   dynamic size strings even though the user space exported arguments had
   only __get_str() macro that provided just a nul terminated string. This
   was fixed so that user space could parse this properly. But the reason
   that it had "%.*s" was because internally it provided the maximum size of
   the string as one of the arguments. The fix that replaced "%.*s" with "%s"
   caused the trace output (when the kernel reads the event) to write
   "(efault)" as it would now read the length of the string as "%s".
 
   As the string provided is always nul terminated, there's no reason for the
   internal code to use "%.*s" anyway. Just remove the length argument to
   match the "%s" that is now in the format.
 
 - Fix the ftrace subops hash logic of the manager ops hash
 
   The function_graph uses the ftrace subops code. The subops code is a way
   to have a single ftrace_ops registered with ftrace to determine what
   functions will call the ftrace_ops callback. More than one user of
   function graph can register a ftrace_ops with it. The function graph
   infrastructure will then add this ftrace_ops as a subops with the main
   ftrace_ops it registers with ftrace. This is because the functions will
   always call the function graph callback which in turn calls the subops
   ftrace_ops callbacks.
 
   The main ftrace_ops must add a callback to all the functions that the
   subops want a callback from. When a subops is registered, it will update
   the main ftrace_ops hash to include the functions it wants. This is the
   logic that was broken.
 
   The ftrace_ops hash has a "filter_hash" and a "notrace_hash" were all the
   functions in the filter_hash but not in the notrace_hash are attached by
   ftrace. The original logic would have the main ftrace_ops filter_hash be a
   union of all the subops filter_hashes and the main notrace_hash would be a
   intersect of all the subops filter hashes. But this was incorrect because
   the notrace hash depends on the filter_hash it is associated to and not
   the union of all filter_hashes.
 
   Instead, when a subops is added, just include all the functions of the
   subops hash that are in its filter_hash but not in its notrace_hash. The
   main subops hash should not use its notrace hash, unless all of its subops
   hashes have an empty filter_hash (which means to attach to all functions),
   and then, and only then, the main ftrace_ops notrace hash can be the
   intersect of all the subops hashes.
 
   This not only fixes the bug, but also simplifies the code.
 
 - Add a selftest to better test the subops filtering
 
   Add a selftest that would catch the bug fixed by the above change.
 
 - Fix extra newline printed in function tracing with retval
 
   The function parameter code changed the output logic slightly and called
   print_graph_retval() and also printed a newline. The print_graph_retval()
   also prints a newline which caused blank lines to be printed in the
   function graph tracer when retval was added. This caused one of the
   selftests to fail if retvals were enabled. Instead remove the new line
   output from print_graph_retval() and have the callers always print the
   new line so that it doesn't have to do special logic if it calls
   print_graph_retval() or not.
 
 - Fix out-of-bound memory access in the runtime verifier
 
   When rv_is_container_monitor() is called on the last entry on the link
   list it references the next entry, which is the list head and causes an
   out-of-bound memory access.
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Merge tag 'trace-v6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Hide get_vm_area() from MMUless builds

   The function get_vm_area() is not defined when CONFIG_MMU is not
   defined. Hide that function within #ifdef CONFIG_MMU.

 - Fix output of synthetic events when they have dynamic strings

   The print fmt of the synthetic event's format file use to have "%.*s"
   for dynamic size strings even though the user space exported
   arguments had only __get_str() macro that provided just a nul
   terminated string. This was fixed so that user space could parse this
   properly.

   But the reason that it had "%.*s" was because internally it provided
   the maximum size of the string as one of the arguments. The fix that
   replaced "%.*s" with "%s" caused the trace output (when the kernel
   reads the event) to write "(efault)" as it would now read the length
   of the string as "%s".

   As the string provided is always nul terminated, there's no reason
   for the internal code to use "%.*s" anyway. Just remove the length
   argument to match the "%s" that is now in the format.

 - Fix the ftrace subops hash logic of the manager ops hash

   The function_graph uses the ftrace subops code. The subops code is a
   way to have a single ftrace_ops registered with ftrace to determine
   what functions will call the ftrace_ops callback. More than one user
   of function graph can register a ftrace_ops with it. The function
   graph infrastructure will then add this ftrace_ops as a subops with
   the main ftrace_ops it registers with ftrace. This is because the
   functions will always call the function graph callback which in turn
   calls the subops ftrace_ops callbacks.

   The main ftrace_ops must add a callback to all the functions that the
   subops want a callback from. When a subops is registered, it will
   update the main ftrace_ops hash to include the functions it wants.
   This is the logic that was broken.

   The ftrace_ops hash has a "filter_hash" and a "notrace_hash" where
   all the functions in the filter_hash but not in the notrace_hash are
   attached by ftrace. The original logic would have the main ftrace_ops
   filter_hash be a union of all the subops filter_hashes and the main
   notrace_hash would be a intersect of all the subops filter hashes.
   But this was incorrect because the notrace hash depends on the
   filter_hash it is associated to and not the union of all
   filter_hashes.

   Instead, when a subops is added, just include all the functions of
   the subops hash that are in its filter_hash but not in its
   notrace_hash. The main subops hash should not use its notrace hash,
   unless all of its subops hashes have an empty filter_hash (which
   means to attach to all functions), and then, and only then, the main
   ftrace_ops notrace hash can be the intersect of all the subops
   hashes.

   This not only fixes the bug, but also simplifies the code.

 - Add a selftest to better test the subops filtering

   Add a selftest that would catch the bug fixed by the above change.

 - Fix extra newline printed in function tracing with retval

   The function parameter code changed the output logic slightly and
   called print_graph_retval() and also printed a newline. The
   print_graph_retval() also prints a newline which caused blank lines
   to be printed in the function graph tracer when retval was added.
   This caused one of the selftests to fail if retvals were enabled.
   Instead remove the new line output from print_graph_retval() and have
   the callers always print the new line so that it doesn't have to do
   special logic if it calls print_graph_retval() or not.

 - Fix out-of-bound memory access in the runtime verifier

   When rv_is_container_monitor() is called on the last entry on the
   link list it references the next entry, which is the list head and
   causes an out-of-bound memory access.

* tag 'trace-v6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  rv: Fix out-of-bound memory access in rv_is_container_monitor()
  ftrace: Do not have print_graph_retval() add a newline
  tracing/selftest: Add test to better test subops filtering of function graph
  ftrace: Fix accounting of subop hashes
  ftrace: Properly merge notrace hashes
  tracing: Do not add length to print format in synthetic events
  tracing: Hide get_vm_area() from MMUless builds
2025-04-12 15:37:40 -07:00
Linus Torvalds
b676ac484f bpf-fixes
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Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Pull bpf fixes from Alexei Starovoitov:

 - Followup fixes for resilient spinlock (Kumar Kartikeya Dwivedi):
     - Make res_spin_lock test less verbose, since it was spamming BPF
       CI on failure, and make the check for AA deadlock stronger
     - Fix rebasing mistake and use architecture provided
       res_smp_cond_load_acquire
     - Convert BPF maps (queue_stack and ringbuf) to resilient spinlock
       to address long standing syzbot reports

 - Make sure that classic BPF load instruction from SKF_[NET|LL]_OFF
   offsets works when skb is fragmeneted (Willem de Bruijn)

* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  bpf: Convert ringbuf map to rqspinlock
  bpf: Convert queue_stack map to rqspinlock
  bpf: Use architecture provided res_smp_cond_load_acquire
  selftests/bpf: Make res_spin_lock AA test condition stronger
  selftests/net: test sk_filter support for SKF_NET_OFF on frags
  bpf: support SKF_NET_OFF and SKF_LL_OFF on skb frags
  selftests/bpf: Make res_spin_lock test less verbose
2025-04-12 12:48:10 -07:00
Kuniyuki Iwashima
b2bdce7adc selftest: net: Remove DCCP bits.
We will remove DCCP.

Let's remove DCCP bits from selftest.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250410023921.11307-2-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-11 18:58:10 -07:00
Anshuman Khandual
92868577d0 selftests/mm: fix compiler -Wmaybe-uninitialized warning
Following build warning comes up for cow test as 'transferred' variable has
not been initialized. Fix the warning via zero init for the variable.

  CC       cow
cow.c: In function `do_test_vmsplice_in_parent':
cow.c:365:61: warning: `transferred' may be used uninitialized [-Wmaybe-uninitialized]
  365 |                 cur = read(fds[0], new + total, transferred - total);
      |                                                 ~~~~~~~~~~~~^~~~~~~
cow.c:296:29: note: `transferred' was declared here
  296 |         ssize_t cur, total, transferred;
      |                             ^~~~~~~~~~~
  CC       compaction_test
  CC       gup_longterm

Link: https://lkml.kernel.org/r/20250409095006.1422620-1-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-04-11 17:32:41 -07:00
Baolin Wang
8c583e538a selftests: mincore: fix tmpfs mincore test failure
When running mincore test cases, I encountered the following failures:

"
mincore_selftest.c:359:check_tmpfs_mmap:Expected ra_pages (511) == 0 (0)
mincore_selftest.c:360:check_tmpfs_mmap:Read-ahead pages found in memory
check_tmpfs_mmap: Test terminated by assertion
          FAIL  global.check_tmpfs_mmap
not ok 5 global.check_tmpfs_mmap
FAILED: 4 / 5 tests passed
"

The reason for the test case failure is that my system automatically enabled
tmpfs large folio allocation by adding the 'transparent_hugepage_tmpfs=always'
cmdline. However, the test case still expects the tmpfs mounted on /dev/shm to
allocate small folios, which leads to assertion failures when verifying readahead
pages.

As discussed with David, there's no reason to continue checking the readahead
logic for tmpfs. Drop it to fix this issue.

Link: https://lkml.kernel.org/r/9a00856cc6a8b4e46f4ab8b1af11ce5fc1a31851.1744025467.git.baolin.wang@linux.alibaba.com
Fixes: d635ccdb43 ("mm: shmem: add a kernel command line to change the default huge policy for tmpfs")
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Acked-by: Zi Yan <ziy@nvidia.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Barry Song <21cnbao@gmail.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-04-11 17:32:40 -07:00
Mark Brown
9c02223e2d selftests/mm: generate a temporary mountpoint for cgroup filesystem
Currently if the filesystem for the cgroups version it wants to use is not
mounted charge_reserved_hugetlb.sh and hugetlb_reparenting_test.sh tests
will attempt to mount it on the hard coded path /dev/cgroup/memory,
deleting that directory when the test finishes.  This will fail if there
is not a preexisting directory at that path, and since the directory is
deleted subsequent runs of the test will fail.  Instead of relying on this
hard coded directory name use mktemp to generate a temporary directory to
use as a mountpoint, fixing both the assumption and the disruption caused
by deleting a preexisting directory.

This means that if the relevant cgroup filesystem is not already mounted
then we rely on having coreutils (which provides mktemp) installed.  I
suspect that many current users are relying on having things automounted
by default, and given that the script relies on bash it's probably not an
unreasonable requirement.

Link: https://lkml.kernel.org/r/20250404-kselftest-mm-cgroup2-detection-v1-1-3dba6d32ba8c@kernel.org
Fixes: 209376ed2a ("selftests/vm: make charge_reserved_hugetlb.sh work with existing cgroup setting")
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: Aishwarya TCV <aishwarya.tcv@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Mina Almasry <almasrymina@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Waiman Long <longman@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-04-11 17:32:37 -07:00
Matthew Wilcox (Oracle)
a30951d09c test suite: use %zu to print size_t
On 32-bit, we can't use %lu to print a size_t variable and gcc warns us
about it.  Shame it doesn't warn about it on 64-bit.

Link: https://lkml.kernel.org/r/20250403003311.359917-1-Liam.Howlett@oracle.com
Fixes: cc86e0c2f3 ("radix tree test suite: add support for slab bulk APIs")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-04-11 17:32:35 -07:00
Daniel Gomez
be8254f694 radix-tree: add missing cleanup.h
Add shared cleanup.h header for radix-tree testing tools.

Fixes build error found with kdevops [1]:

cc -I../shared -I. -I../../include -I../../../lib -g -Og -Wall
-D_LGPL_SOURCE -fsanitize=address -fsanitize=undefined   -c -o
radix-tree.o radix-tree.c
In file included from ../shared/linux/idr.h:1,
                 from radix-tree.c:18:
../shared/linux/../../../../include/linux/idr.h:18:10: fatal error:
linux/cleanup.h: No such file or directory
   18 | #include <linux/cleanup.h>
      |          ^~~~~~~~~~~~~~~~~
compilation terminated.
make: *** [<builtin>: radix-tree.o] Error 1

[1] https://github.com/linux-kdevops/kdevops
https://github.com/linux-kdevops/linux-mm-kpd/
actions/runs/13971648496/job/39114756401

[akpm@linux-foundation.org: remove unneeded header guards, per Sidhartha]
Link: https://lkml.kernel.org/r/20250321-fix-radix-tree-build-v1-1-838a1e6540e2@samsung.com
Fixes: 6c8b0b835f ("perf/core: Simplify perf_pmu_register()")
Signed-off-by: Daniel Gomez <da.gomez@samsung.com>
Cc: Daniel Gomez <da.gomez@samsung.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Luis Chamberalin <mcgrof@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-04-11 17:32:35 -07:00
Toke Høiland-Jørgensen
18c889a9a4 selftests/tc-testing: Add test for echo of big TC filters
Add a selftest that checks whether the kernel can successfully echo a
big tc filter, to test the fix introduced in commit:

369609fc62 ("tc: Ensure we have enough buffer space when sending filter netlink notifications")

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Tested-by: Victor Nogueira <victor@mojatatu.com>
Link: https://patch.msgid.link/20250410104322.214620-1-toke@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-11 16:33:32 -07:00
Steven Rostedt
a1fc89d409 tracing/selftest: Add test to better test subops filtering of function graph
A bug was discovered that showed the accounting of the subops of the
ftrace_ops filtering was incorrect. Add a new test to better test the
filtering.

This test creates two instances, where it will add various filters to both
the set_ftrace_filter and the set_ftrace_notrace files and enable
function_graph. Then it looks into the enabled_functions file to make sure
that the filters are behaving correctly.

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Andy Chiu <andybnac@gmail.com>
Link: https://lore.kernel.org/20250409152720.380778379@goodmis.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2025-04-11 16:02:08 -04:00
Jakub Kicinski
cd5e64fb95 netlink: specs: rename rtnetlink specs in accordance with family name
The rtnetlink family names are set to rt-$name within the YAML
but the files are called rt_$name. C codegen assumes that the
generated file name will match the family. The use of dashes
is in line with our general expectation that name properties
in the spec use dashes not underscores (even tho, as Donald
points out most genl families use underscores in the name).

We have 3 un-ideal options to choose from:

 - accept the slight inconsistency with old families using _, or
 - accept the slight annoyance with all languages having to do s/-/_/
   when looking up family ID, or
 - accept the inconsistency with all name properties in new YAML spec
   being separated with - and just the family name always using _.

Pick option 1 and rename the rtnl spec files.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250410014658.782120-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-10 20:14:40 -07:00
David Wei
6afd0a3c7e io_uring/zcrx: enable tcp-data-split in selftest
For bnxt when the agg ring is used then tcp-data-split is automatically
reported to be enabled, but __net_mp_open_rxq() requires tcp-data-split
to be explicitly enabled by the user.

Enable tcp-data-split explicitly in io_uring zc rx selftest.

Signed-off-by: David Wei <dw@davidwei.uk>
Link: https://patch.msgid.link/20250409163153.2747918-1-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-10 17:27:58 -07:00
Jakub Kicinski
cb7103298d Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.15-rc2).

Conflict:

Documentation/networking/netdevices.rst
net/core/lock_debug.c
  04efcee6ef ("net: hold instance lock during NETDEV_CHANGE")
  03df156dd3 ("xdp: double protect netdev->xdp_flags with netdev->lock")

No adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-10 16:51:07 -07:00
Kumar Kartikeya Dwivedi
1ddb9ad2ac selftests/bpf: Make res_spin_lock AA test condition stronger
Let's make sure that we see a EDEADLK and ETIMEDOUT whenever checking
for the AA tests (in case of simple AA and AA after exhausting 31
entries).

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20250410170023.2670683-1-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-04-10 12:45:37 -07:00
Tushar Vyavahare
4b30209255 selftests/xsk: Add tail adjustment tests and support check
Introduce tail adjustment functionality in xskxceiver using
bpf_xdp_adjust_tail(). Add `xsk_xdp_adjust_tail` to modify packet sizes
and drop unmodified packets. Implement `is_adjust_tail_supported` to check
helper availability. Develop packet resizing tests, including shrinking
and growing scenarios, with functions for both single-buffer and
multi-buffer cases. Update the test framework to handle various scenarios
and adjust MTU settings. These changes enhance the testing of packet tail
adjustments, improving AF_XDP framework reliability.

Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Tushar Vyavahare <tushar.vyavahare@intel.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20250410033116.173617-3-tushar.vyavahare@intel.com
2025-04-10 10:08:55 -07:00
Tushar Vyavahare
3e730fe2af selftests/xsk: Add packet stream replacement function
Add pkt_stream_replace_ifobject function to replace the packet stream for
a given ifobject.

Enable separate TX and RX packet replacement, allowing RX side packet
length adjustments using bpf_xdp_adjust_tail() in the upcoming patch.
Currently, pkt_stream_replace() works on both TX and RX packet streams,
and this new function provides the ability to modify one of them.

Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Tushar Vyavahare <tushar.vyavahare@intel.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20250410033116.173617-2-tushar.vyavahare@intel.com
2025-04-10 10:07:48 -07:00
Linus Torvalds
ab59a86056 Including fixes from netfilter.
Current release - regressions:
 
   - core: hold instance lock during NETDEV_CHANGE
 
   - rtnetlink: fix bad unlock balance in do_setlink().
 
   - ipv6:
     - fix null-ptr-deref in addrconf_add_ifaddr().
     - align behavior across nexthops during path selection
 
 Previous releases - regressions:
 
   - sctp: prevent transport UaF in sendmsg
 
   - mptcp: only inc MPJoinAckHMacFailure for HMAC failures
 
 Previous releases - always broken:
 
   - sched:
     - make ->qlen_notify() idempotent
     - ensure sufficient space when sending filter netlink notifications
     - sch_sfq: really don't allow 1 packet limit
 
   - netfilter: fix incorrect avx2 match of 5th field octet
 
   - tls: explicitly disallow disconnect
 
   - eth: octeontx2-pf: fix VF root node parent queue priority
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from netfilter.

  Current release - regressions:

    - core: hold instance lock during NETDEV_CHANGE

    - rtnetlink: fix bad unlock balance in do_setlink()

    - ipv6:
       - fix null-ptr-deref in addrconf_add_ifaddr()
       - align behavior across nexthops during path selection

  Previous releases - regressions:

    - sctp: prevent transport UaF in sendmsg

    - mptcp: only inc MPJoinAckHMacFailure for HMAC failures

  Previous releases - always broken:

    - sched:
       - make ->qlen_notify() idempotent
       - ensure sufficient space when sending filter netlink notifications
       - sch_sfq: really don't allow 1 packet limit

    - netfilter: fix incorrect avx2 match of 5th field octet

    - tls: explicitly disallow disconnect

    - eth: octeontx2-pf: fix VF root node parent queue priority"

* tag 'net-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (38 commits)
  ethtool: cmis_cdb: Fix incorrect read / write length extension
  selftests: netfilter: add test case for recent mismatch bug
  nft_set_pipapo: fix incorrect avx2 match of 5th field octet
  net: ppp: Add bound checking for skb data on ppp_sync_txmung
  net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod.
  ipv6: Align behavior across nexthops during path selection
  net: phy: allow MDIO bus PM ops to start/stop state machine for phylink-controlled PHY
  net: phy: move phy_link_change() prior to mdio_bus_phy_may_suspend()
  selftests/tc-testing: sfq: check that a derived limit of 1 is rejected
  net_sched: sch_sfq: move the limit validation
  net_sched: sch_sfq: use a temporary work area for validating configuration
  net: libwx: handle page_pool_dev_alloc_pages error
  selftests: mptcp: validate MPJoin HMacFailure counters
  mptcp: only inc MPJoinAckHMacFailure for HMAC failures
  rtnetlink: Fix bad unlock balance in do_setlink().
  net: ethtool: Don't call .cleanup_data when prepare_data fails
  tc: Ensure we have enough buffer space when sending filter netlink notifications
  net: libwx: Fix the wrong Rx descriptor field
  octeontx2-pf: qos: fix VF root node parent queue index
  selftests: tls: check that disconnect does nothing
  ...
2025-04-10 08:52:18 -07:00
Linus Torvalds
e4742a89cf block-6.15-20250410
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Merge tag 'block-6.15-20250410' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - Add a missing ublk selftest script, from test additions added last
   week

 - Two fixes for ublk error recovery and reissue

 - Cleanup of ublk argument passing

* tag 'block-6.15-20250410' of git://git.kernel.dk/linux:
  ublk: pass ublksrv_ctrl_cmd * instead of io_uring_cmd *
  ublk: don't fail request for recovery & reissue in case of ubq->canceling
  ublk: fix handling recovery & reissue in ublk_abort_queue()
  selftests: ublk: fix test_stripe_04
2025-04-10 07:02:22 -07:00
Florian Westphal
27eb86e22f selftests: netfilter: add test case for recent mismatch bug
Without 'nft_set_pipapo: fix incorrect avx2 match of 5th field octet"
this fails:

TEST: reported issues
  Add two elements, flush, re-add    1s  [ OK ]
  net,mac with reload                0s  [ OK ]
  net,port,proto                     3s  [ OK ]
  avx2 false match                   0s  [FAIL]
False match for fe80:dead:01fe:0a02:0b03:6007:8009:a001

Other tests do not detect the kernel bug as they only alter parts in
the /64 netmask.

Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-04-10 12:33:55 +02:00
Willem de Bruijn
fcd7132cb1 selftests/net: test sk_filter support for SKF_NET_OFF on frags
Verify that a classic BPF linux socket filter correctly matches
packet contents. Including when accessing contents in an
skb_frag.

1. Open a SOCK_RAW socket with a classic BPF filter on UDP dport 8000.
2. Open a tap device with IFF_NAPI_FRAGS to inject skbs with frags.
3. Send a packet for which the UDP header is in frag[0].
4. Receive this packet to demonstrate that the socket accepted it.

Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20250408132833.195491-3-willemdebruijn.kernel@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-04-09 20:02:51 -07:00
Amit Cohen
0ffb594212 selftests: test_bridge_neigh_suppress: Test unicast ARP/NS with suppression
Add test cases to check that unicast ARP/NS packets are replied once, even
if ARP/ND suppression is enabled.

Without the previous patch:
$ ./test_bridge_neigh_suppress.sh
...
Unicast ARP, per-port ARP suppression - VLAN 10
-----------------------------------------------
TEST: "neigh_suppress" is on                                        [ OK ]
TEST: Unicast ARP, suppression on, h1 filter                        [FAIL]
TEST: Unicast ARP, suppression on, h2 filter                        [ OK ]

Unicast ARP, per-port ARP suppression - VLAN 20
-----------------------------------------------
TEST: "neigh_suppress" is on                                        [ OK ]
TEST: Unicast ARP, suppression on, h1 filter                        [FAIL]
TEST: Unicast ARP, suppression on, h2 filter                        [ OK ]
...
Unicast NS, per-port NS suppression - VLAN 10
---------------------------------------------
TEST: "neigh_suppress" is on                                        [ OK ]
TEST: Unicast NS, suppression on, h1 filter                         [FAIL]
TEST: Unicast NS, suppression on, h2 filter                         [ OK ]

Unicast NS, per-port NS suppression - VLAN 20
---------------------------------------------
TEST: "neigh_suppress" is on                                        [ OK ]
TEST: Unicast NS, suppression on, h1 filter                         [FAIL]
TEST: Unicast NS, suppression on, h2 filter                         [ OK ]
...
Tests passed: 156
Tests failed:   4

With the previous patch:
$ ./test_bridge_neigh_suppress.sh
...
Unicast ARP, per-port ARP suppression - VLAN 10
-----------------------------------------------
TEST: "neigh_suppress" is on                                        [ OK ]
TEST: Unicast ARP, suppression on, h1 filter                        [ OK ]
TEST: Unicast ARP, suppression on, h2 filter                        [ OK ]

Unicast ARP, per-port ARP suppression - VLAN 20
-----------------------------------------------
TEST: "neigh_suppress" is on                                        [ OK ]
TEST: Unicast ARP, suppression on, h1 filter                        [ OK ]
TEST: Unicast ARP, suppression on, h2 filter                        [ OK ]
...
Unicast NS, per-port NS suppression - VLAN 10
---------------------------------------------
TEST: "neigh_suppress" is on                                        [ OK ]
TEST: Unicast NS, suppression on, h1 filter                         [ OK ]
TEST: Unicast NS, suppression on, h2 filter                         [ OK ]

Unicast NS, per-port NS suppression - VLAN 20
---------------------------------------------
TEST: "neigh_suppress" is on                                        [ OK ]
TEST: Unicast NS, suppression on, h1 filter                         [ OK ]
TEST: Unicast NS, suppression on, h2 filter                         [ OK ]
...
Tests passed: 160
Tests failed:   0

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/dc240b9649b31278295189f412223f320432c5f2.1744123493.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-09 19:13:43 -07:00
Linus Torvalds
3b07108ada linux_kselftest-fixes-6.15-rc2
Fixes tpm2, futex, and mincore tests. Creates a dedicated .gitignore
 for tpm2
 
 Details:
 
 selftests: tpm2: test_smoke: use POSIX-conformant expression operator
 selftests/futex: futex_waitv wouldblock test should fail
 selftests: tpm2: create a dedicated .gitignore
 selftests/mincore: Allow read-ahead pages to reach the end of the file
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Merge tag 'linux_kselftest-fixes-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fixes from Shuah Khan:

 - Fixes tpm2, futex, and mincore tests

 - Create a dedicated .gitignore for tpm2 tests

* tag 'linux_kselftest-fixes-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/mincore: Allow read-ahead pages to reach the end of the file
  selftests/futex: futex_waitv wouldblock test should fail
  selftests: tpm2: test_smoke: use POSIX-conformant expression operator
  selftests: tpm2: create a dedicated .gitignore
2025-04-09 16:02:44 -07:00
Octavian Purdila
26e705184e selftests/tc-testing: sfq: check that a derived limit of 1 is rejected
Because the limit is updated indirectly when other parameters are
updated, there are cases where even though the user requests a limit
of 2 it can actually be set to 1.

Add the following test cases to check that the kernel rejects them:
- limit 2 depth 1 flows 1
- limit 2 depth 1 divisor 1

Signed-off-by: Octavian Purdila <tavip@google.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2025-04-09 12:55:48 +01:00
Linus Torvalds
a245882457 linux_kselftest-kunit-6.15-rc2
Fixes tool to report test count in case of a late test plan when tests
 are specified before the test plan. Fixes spelling error in the commit
 that went into 6.15-rc1.
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Merge tag 'linux_kselftest-kunit-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kunit fixes from Shuah Khan:

 - Fix the tool to report test count in case of a late test plan when
   tests are specified before the test plan

 - Fix spelling error

* tag 'linux_kselftest-kunit-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kunit: Spelling s/slowm/slow/
  kunit: tool: fix count of tests if late test plan
2025-04-08 17:16:43 -07:00
Matthieu Baerts (NGI0)
6767698cf9 selftests: mptcp: validate MPJoin HMacFailure counters
The parent commit fixes an issue around these counters where one of them
-- MPJoinAckHMacFailure -- was wrongly incremented in some cases.

This makes sure the counter is always 0. It should be incremented only
in case of corruption, or a wrong implementation, which should not be
the case in these selftests.

Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250407-net-mptcp-hmac-failure-mib-v1-2-3c9ecd0a3a50@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-08 16:16:17 -07:00
Victor Nogueira
5ac40e6b5b selftests: tc-testing: Pre-load IFE action and its submodules
Recently we had some issues in parallel TDC where some of IFE tests are
failing due to some of IFE's submodules (like act_meta_skbtcindex and
act_meta_skbprio) taking too long to load [1]. To avoid that issue,
pre-load IFE and all its submodules before running any of the tests in
tdc.sh

[1] https://lore.kernel.org/netdev/e909b2a0-244e-4141-9fa9-1b7d96ab7d71@mojatatu.com/T/#u

Signed-off-by: Victor Nogueira <victor@mojatatu.com>
Link: https://patch.msgid.link/20250407215656.2535990-1-victor@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-08 16:15:52 -07:00
Qiuxu Zhuo
197c1eaa7b selftests/mincore: Allow read-ahead pages to reach the end of the file
When running the mincore_selftest on a system with an XFS file system, it
failed the "check_file_mmap" test case due to the read-ahead pages reaching
the end of the file. The failure log is as below:

   RUN           global.check_file_mmap ...
  mincore_selftest.c:264:check_file_mmap:Expected i (1024) < vec_size (1024)
  mincore_selftest.c:265:check_file_mmap:Read-ahead pages reached the end of the file
  check_file_mmap: Test failed
           FAIL  global.check_file_mmap

This is because the read-ahead window size of the XFS file system on this
machine is 4 MB, which is larger than the size from the #PF address to the
end of the file. As a result, all the pages for this file are populated.

  blockdev --getra /dev/nvme0n1p5
    8192
  blockdev --getbsz /dev/nvme0n1p5
    512

This issue can be fixed by extending the current FILE_SIZE 4MB to a larger
number, but it will still fail if the read-ahead window size of the file
system is larger enough. Additionally, in the real world, read-ahead pages
reaching the end of the file can happen and is an expected behavior.
Therefore, allowing read-ahead pages to reach the end of the file is a
better choice for the "check_file_mmap" test case.

Link: https://lore.kernel.org/r/20250311080940.21413-1-qiuxu.zhuo@intel.com
Reported-by: Yi Lai <yi1.lai@intel.com>
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-04-08 17:08:50 -06:00
Edward Liaw
7d50e00fef selftests/futex: futex_waitv wouldblock test should fail
Testcase should fail if -EWOULDBLOCK is not returned when expected value
differs from actual value from the waiter.

Link: https://lore.kernel.org/r/20250404221225.1596324-1-edliaw@google.com
Fixes: 9d57f7c797 ("selftests: futex: Test sys_futex_waitv() wouldblock")
Signed-off-by: Edward Liaw <edliaw@google.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: André Almeida <andrealmeid@igalia.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-04-08 16:50:19 -06:00
Rae Moar
14e594a1fc kunit: tool: fix count of tests if late test plan
Fix test count with late test plan.

For example,
  TAP version 13
  ok 1 test1
  1..4

Returns a count of 1 passed, 1 crashed (because it expects tests after
the test plan): returning the total count of 2 tests

Change this to be 1 passed, 1 error: total count of 1 test

Link: https://lore.kernel.org/r/20250319223351.1517262-1-rmoar@google.com
Signed-off-by: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <shuah@kernel.org>
2025-04-08 14:57:24 -06:00
Ahmed Salem
170ec11935 selftests: tpm2: test_smoke: use POSIX-conformant expression operator
Use POSIX-conformant expression operator symbol '='.

The use of the non POSIX-conformant symbol '==' would work
in bash, but not in sh where the unexpected operator error
would result in test_smoke.sh being skipped.

Instead of changing the shebang to use bash, which may not be
available on all systems, use the POSIX-conformant expression
symbol '=' to test for equality.

Without this patch:
===================
 # make -j8 TARGETS=tpm2 kselftest
 # selftests: tpm2: test_smoke.sh
 # ./test_smoke.sh: 9: [: 2: unexpected operator
 ok 1 selftests: tpm2: test_smoke.sh # SKIP

With this patch:
================
 # make -j8 TARGETS=tpm2 kselftest
 # selftests: tpm2: test_smoke.sh
 # Ran 9 tests in 9.236s
 ok 1 selftests: tpm2: test_smoke.sh

Link: https://lore.kernel.org/r/37ztyakgrrtgvec344mg7mspchwjpxxtsprtjidso3pwkmm4f4@awsa5mzgqmtb
Signed-off-by: Ahmed Salem <x0rw3ll@gmail.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-04-08 14:56:13 -06:00
Khaled Elnaggar
5cd2950359 selftests: tpm2: create a dedicated .gitignore
The tpm2 selftests produce two logs: SpaceTest.log and
AsyncTest.log. Only SpaceTest.log was listed in selftests/.gitignore,
while AsyncTest.log remained untracked.

This change creates a dedicated .gitignore in the tpm2/ directory to
manage these entries, keeping tpm2-specific patterns isolated from
parent .gitignore.

Fixed white-space errors during commit
Shuah Khan <skhan@linuxfoundation.org>

Link: https://lore.kernel.org/r/20250126195147.902608-1-khaledelnaggarlinux@gmail.com
Signed-off-by: Khaled Elnaggar <khaledelnaggarlinux@gmail.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-04-08 14:56:13 -06:00
Linus Torvalds
0e8863244e ARM:
* Rework heuristics for resolving the fault IPA (HPFAR_EL2 v. re-walk
   stage-1 page tables) to align with the architecture. This avoids
   possibly taking an SEA at EL2 on the page table walk or using an
   architecturally UNKNOWN fault IPA.
 
 * Use acquire/release semantics in the KVM FF-A proxy to avoid reading
   a stale value for the FF-A version.
 
 * Fix KVM guest driver to match PV CPUID hypercall ABI.
 
 * Use Inner Shareable Normal Write-Back mappings at stage-1 in KVM
   selftests, which is the only memory type for which atomic
   instructions are architecturally guaranteed to work.
 
 s390:
 
 * Don't use %pK for debug printing and tracepoints.
 
 x86:
 
 * Use a separate subclass when acquiring KVM's per-CPU posted interrupts
   wakeup lock in the scheduled out path, i.e. when adding a vCPU on
   the list of vCPUs to wake, to workaround a false positive deadlock.
   The schedule out code runs with a scheduler lock that the wakeup
   handler takes in the opposite order; but it does so with IRQs disabled
   and cannot run concurrently with a wakeup.
 
 * Explicitly zero-initialize on-stack CPUID unions
 
 * Allow building irqbypass.ko as as module when kvm.ko is a module
 
 * Wrap relatively expensive sanity check with KVM_PROVE_MMU
 
 * Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses
 
 selftests:
 
 * Add more scenarios to the MONITOR/MWAIT test.
 
 * Add option to rseq test to override /dev/cpu_dma_latency
 
 * Bring list of exit reasons up to date
 
 * Cleanup Makefile to list once tests that are valid on all architectures
 
 Other:
 
 * Documentation fixes
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "ARM:

   - Rework heuristics for resolving the fault IPA (HPFAR_EL2 v. re-walk
     stage-1 page tables) to align with the architecture. This avoids
     possibly taking an SEA at EL2 on the page table walk or using an
     architecturally UNKNOWN fault IPA

   - Use acquire/release semantics in the KVM FF-A proxy to avoid
     reading a stale value for the FF-A version

   - Fix KVM guest driver to match PV CPUID hypercall ABI

   - Use Inner Shareable Normal Write-Back mappings at stage-1 in KVM
     selftests, which is the only memory type for which atomic
     instructions are architecturally guaranteed to work

  s390:

   - Don't use %pK for debug printing and tracepoints

  x86:

   - Use a separate subclass when acquiring KVM's per-CPU posted
     interrupts wakeup lock in the scheduled out path, i.e. when adding
     a vCPU on the list of vCPUs to wake, to workaround a false positive
     deadlock. The schedule out code runs with a scheduler lock that the
     wakeup handler takes in the opposite order; but it does so with
     IRQs disabled and cannot run concurrently with a wakeup

   - Explicitly zero-initialize on-stack CPUID unions

   - Allow building irqbypass.ko as as module when kvm.ko is a module

   - Wrap relatively expensive sanity check with KVM_PROVE_MMU

   - Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses

  selftests:

   - Add more scenarios to the MONITOR/MWAIT test

   - Add option to rseq test to override /dev/cpu_dma_latency

   - Bring list of exit reasons up to date

   - Cleanup Makefile to list once tests that are valid on all
     architectures

  Other:

   - Documentation fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (26 commits)
  KVM: arm64: Use acquire/release to communicate FF-A version negotiation
  KVM: arm64: selftests: Explicitly set the page attrs to Inner-Shareable
  KVM: arm64: selftests: Introduce and use hardware-definition macros
  KVM: VMX: Use separate subclasses for PI wakeup lock to squash false positive
  KVM: VMX: Assert that IRQs are disabled when putting vCPU on PI wakeup list
  KVM: x86: Explicitly zero-initialize on-stack CPUID unions
  KVM: Allow building irqbypass.ko as as module when kvm.ko is a module
  KVM: x86/mmu: Wrap sanity check on number of TDP MMU pages with KVM_PROVE_MMU
  KVM: selftests: Add option to rseq test to override /dev/cpu_dma_latency
  KVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses
  Documentation: kvm: remove KVM_CAP_MIPS_TE
  Documentation: kvm: organize capabilities in the right section
  Documentation: kvm: fix some definition lists
  Documentation: kvm: drop "Capability" heading from capabilities
  Documentation: kvm: give correct name for KVM_CAP_SPAPR_MULTITCE
  Documentation: KVM: KVM_GET_SUPPORTED_CPUID now exposes TSC_DEADLINE
  selftests: kvm: list once tests that are valid on all architectures
  selftests: kvm: bring list of exit reasons up to date
  selftests: kvm: revamp MONITOR/MWAIT tests
  KVM: arm64: Don't translate FAR if invalid/unsafe
  ...
2025-04-08 13:47:55 -07:00
Linus Torvalds
e37f72b3b4 cgroup: Fixes for v6.15-rc1
- A number of cpuset remote partition related fixes and cleanups along with
   selftest updates.
 
 - A change from this merge window made cgroup_rstat_updated_list() called
   outside cgroup_rstat_lock leading to list corruptions. Fix it by
   relocating the call inside the lock.
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Merge tag 'cgroup-for-6.15-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup fixes from Tejun Heo:

 - A number of cpuset remote partition related fixes and cleanups along
   with selftest updates.

 - A change from this merge window made cgroup_rstat_updated_list()
   called outside cgroup_rstat_lock leading to list corruptions. Fix it
   by relocating the call inside the lock.

* tag 'cgroup-for-6.15-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup/cpuset: Fix race between newly created partition and dying one
  cgroup: rstat: call cgroup_rstat_updated_list with cgroup_rstat_lock
  selftest/cgroup: Add a remote partition transition test to test_cpuset_prs.sh
  selftest/cgroup: Clean up and restructure test_cpuset_prs.sh
  selftest/cgroup: Update test_cpuset_prs.sh to use | as effective CPUs and state separator
  cgroup/cpuset: Remove unneeded goto in sched_partition_write() and rename it
  cgroup/cpuset: Code cleanup and comment update
  cgroup/cpuset: Don't allow creation of local partition over a remote one
  cgroup/cpuset: Remove remote_partition_check() & make update_cpumasks_hier() handle remote partition
  cgroup/cpuset: Fix error handling in remote_partition_disable()
  cgroup/cpuset: Fix incorrect isolated_cpus update in update_parent_effective_cpumask()
2025-04-08 12:15:05 -07:00