Pull more kselftest fixes from Shuah Khan
 "Fixes to user_events test and ftrace test.

  The user_events test was enabled by default in Linux 6.6-rc1. The
  following fixes are for bugs found since then:

   - add checks for dependencies and skip the test if they aren't met.

     The user_events test requires root access, and tracefs and
     user_events enabled. It leaves tracefs mounted and a fix is in
     progress for that missing piece.

   - create user_events test-specific Kconfig fragments

  ftrace test fixes:

   - unmount tracefs for recovering environment. Fix identified during
     the above mentioned user_events dependencies fix.

   - adds softlink to latest log directory improving usage"

* tag 'linux-kselftest-fixes-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: tracing: Fix to unmount tracefs for recovering environment
  selftests: user_events: create test-specific Kconfig fragments
  ftrace/selftests: Add softlink to latest log directory
  selftests/user_events: Fix failures when user_events is not installed

Pull networking fixes from Paolo Abeni:
 "Quite unusually, this does not contains any fix coming from subtrees
  (nf, ebpf, wifi, etc).

  Current release - regressions:

   - bcmasp: fix possible OOB write in bcmasp_netfilt_get_all_active()

  Previous releases - regressions:

   - ipv4: fix one memleak in __inet_del_ifa()

   - tcp: fix bind() regressions for v4-mapped-v6 addresses.

   - tls: do not free tls_rec on async operation in
     bpf_exec_tx_verdict()

   - dsa: fixes for SJA1105 FDB regressions

   - veth: update XDP feature set when bringing up device

   - igb: fix hangup when enabling SR-IOV

  Previous releases - always broken:

   - kcm: fix memory leak in error path of kcm_sendmsg()

   - smc: fix data corruption in smcr_port_add

   - microchip: fix possible memory leak for vcap_dup_rule()"

* tag 'net-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (37 commits)
  kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg().
  net: renesas: rswitch: Add spin lock protection for irq {un}mask
  net: renesas: rswitch: Fix unmasking irq condition
  igb: clean up in all error paths when enabling SR-IOV
  ixgbe: fix timestamp configuration code
  selftest: tcp: Add v4-mapped-v6 cases in bind_wildcard.c.
  selftest: tcp: Move expected_errno into each test case in bind_wildcard.c.
  selftest: tcp: Fix address length in bind_wildcard.c.
  tcp: Fix bind() regression for v4-mapped-v6 non-wildcard address.
  tcp: Fix bind() regression for v4-mapped-v6 wildcard address.
  tcp: Factorise sk_family-independent comparison in inet_bind2_bucket_match(_addr_any).
  ipv6: fix ip6_sock_set_addr_preferences() typo
  veth: Update XDP feature set when bringing up device
  net: macb: fix sleep inside spinlock
  net/tls: do not free tls_rec on async operation in bpf_exec_tx_verdict()
  net: ethernet: mtk_eth_soc: fix pse_port configuration for MT7988
  net: ethernet: mtk_eth_soc: fix uninitialized variable
  kcm: Fix memory leak in error path of kcm_sendmsg()
  r8152: check budget for r8152_poll()
  net: dsa: sja1105: block FDB accesses that are concurrent with a switch reset
  ...

Pull tracing fixes from Steven Rostedt:

 - Add missing LOCKDOWN checks for eventfs callers

   When LOCKDOWN is active for tracing, it causes inconsistent state
   when some functions succeed and others fail.

 - Use dput() to free the top level eventfs descriptor

   There was a race between accesses and freeing it.

 - Fix a long standing bug that eventfs exposed due to changing timings
   by dynamically creating files. That is, If a event file is opened for
   an instance, there's nothing preventing the instance from being
   removed which will make accessing the files cause use-after-free
   bugs.

 - Fix a ring buffer race that happens when iterating over the ring
   buffer while writers are active. Check to make sure not to read the
   event meta data if it's beyond the end of the ring buffer sub buffer.

 - Fix the print trigger that disappeared because the test to create it
   was looking for the event dir field being filled, but now it has the
   "ef" field filled for the eventfs structure.

 - Remove the unused "dir" field from the event structure.

 - Fix the order of the trace_dynamic_info as it had it backwards for
   the offset and len fields for which one was for which endianess.

 - Fix NULL pointer dereference with eventfs_remove_rec()

   If an allocation fails in one of the eventfs_add_*() functions, the
   caller of it in event_subsystem_dir() or event_create_dir() assigns
   the result to the structure. But it's assigning the ERR_PTR and not
   NULL. This was passed to eventfs_remove_rec() which expects either a
   good pointer or a NULL, not ERR_PTR. The fix is to not assign the
   ERR_PTR to the structure, but to keep it NULL on error.

 - Fix list_for_each_rcu() to use list_for_each_srcu() in
   dcache_dir_open_wrapper(). One iteration of the code used RCU but
   because it had to call sleepable code, it had to be changed to use
   SRCU, but one of the iterations was missed.

 - Fix synthetic event print function to use "as_u64" instead of passing
   in a pointer to the union. To fix big/little endian issues, the u64
   that represented several types was turned into a union to define the
   types properly.

* tag 'trace-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  eventfs: Fix the NULL pointer dereference bug in eventfs_remove_rec()
  tracefs/eventfs: Use list_for_each_srcu() in dcache_dir_open_wrapper()
  tracing/synthetic: Print out u64 values properly
  tracing/synthetic: Fix order of struct trace_dynamic_info
  selftests/ftrace: Fix dependencies for some of the synthetic event tests
  tracing: Remove unused trace_event_file dir field
  tracing: Use the new eventfs descriptor for print trigger
  ring-buffer: Do not attempt to read past "commit"
  tracefs/eventfs: Free top level files on removal
  ring-buffer: Avoid softlockup in ring_buffer_resize()
  tracing: Have event inject files inc the trace array ref count
  tracing: Have option files inc the trace array ref count
  tracing: Have current_trace inc the trace array ref count
  tracing: Have tracing_max_latency inc the trace array ref count
  tracing: Increase trace array ref count on enable and filter files
  tracefs/eventfs: Use dput to free the toplevel events directory
  tracefs/eventfs: Add missing lockdown checks
  tracefs: Add missing lockdown check to tracefs_create_dir()

We add these 8 test cases in bind_wildcard.c to check bind() conflicts.

  1st bind()          2nd bind()
  ---------           ---------
  0.0.0.0             ::FFFF:0.0.0.0
  ::FFFF:0.0.0.0      0.0.0.0
  0.0.0.0             ::FFFF:127.0.0.1
  ::FFFF:127.0.0.1    0.0.0.0
  127.0.0.1           ::FFFF:0.0.0.0
  ::FFFF:0.0.0.0      127.0.0.1
  127.0.0.1           ::FFFF:127.0.0.1
  ::FFFF:127.0.0.1    127.0.0.1

All test passed without bhash2 and with bhash2 and this series.

 Before bhash2:
  $ uname -r
  6.0.0-rc1-00393-g0bf73255d3a3
  $ ./bind_wildcard
  ...
  # PASSED: 16 / 16 tests passed.

 Just after bhash2:
  $ uname -r
  6.0.0-rc1-00394-g28044fc1d495
  $ ./bind_wildcard
  ...
  ok 15 bind_wildcard.v4_local_v6_v4mapped_local.v4_v6
  not ok 16 bind_wildcard.v4_local_v6_v4mapped_local.v6_v4
  # FAILED: 15 / 16 tests passed.

 On net.git:
  $ ./bind_wildcard
  ...
  not ok 14 bind_wildcard.v4_local_v6_v4mapped_any.v6_v4
  not ok 16 bind_wildcard.v4_local_v6_v4mapped_local.v6_v4
  # FAILED: 13 / 16 tests passed.

 With this series:
  $ ./bind_wildcard
  ...
  # PASSED: 16 / 16 tests passed.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This is a preparation patch for the following patch.

Let's define expected_errno in each test case so that we can add other test
cases easily.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The selftest passes the IPv6 address length for an IPv4 address.
We should pass the correct length.

Note inet_bind_sk() does not check if the size is larger than
sizeof(struct sockaddr_in), so there is no real bug in this
selftest.

Fixes: 13715acf8ab5 ("selftest: Add test for bind() conflicts.")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Pull kselftest fixes from Shuah Khan:

 - kselftest runner script to propagate SIGTERM to runner child
   to avoid kselftest hang

 - install symlinks required for test execution to avoid test
   failures

 - kselftest dependency checker script argument parsing

* tag 'linux-kselftest-next-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: Keep symlinks, when possible
  selftests: fix dependency checker script
  kselftest/runner.sh: Propagate SIGTERM to runner child
  selftests/ftrace: Correctly enable event in instance-event.tc

Fix to unmount the tracefs if the ftracetest mounted it for recovering
system environment. If the tracefs is already mounted, this does nothing.

Suggested-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/all/29fce076-746c-4650-8358-b4e0fa215cf7@sirena.org.uk/
Fixes: cbd965bde74c ("ftrace/selftests: Return the skip code when tracing directory not configured in kernel")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

Create the config file in user_events directory of testcase which
need more kernel configuration than the default defconfig. User
could use these configs with merge_config.sh script:

The Kconfig CONFIG_USER_EVENTS=y is needed for the test to read
data from the following files,
  - "/sys/kernel/tracing/user_events_data"
  - "/sys/kernel/tracing/user_events_status"
  - "/sys/kernel/tracing/events/user_events/*"

Enable config for specific testcase:
(export ARCH=xxx #for cross compiling)
./scripts/kconfig/merge_config.sh .config \
                tools/testing/selftests/user_events/config

Enable configs for all testcases:
(export ARCH=xxx #for cross compiling)
./scripts/kconfig/merge_config.sh .config \
                tools/testing/selftests/*/config

Cc: Beau Belgrave <beaub@linux.microsoft.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

When I'm debugging something with the ftrace selftests and need to look at
the logs, it becomes tedious that I need to do the following:

 ls -ltr logs
 [ copy the last directory ]
 ls logs/<paste-last-dir>

to see where the logs are.

Instead, do the common practice of having a "latest" softlink to the last
run selftest. This way after running the selftest I only need to do:

 ls logs/latest/

and it will always give me the directory of the last run selftest logs!

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>