linux-toradex.git/tools, branch v6.11-rc7

Merge tag 'riscv-for-linus-6.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

2024-09-06T20:00:59+00:00

Pull RISC-V fixes from Palmer Dabbelt:

 - A revert for the mmap() change that ties the allocation range to the
   hint adress, as what we tried to do ended up regressing on other
   userspace workloads.

 - A fix to avoid a kernel memory leak when emulating misaligned
   accesses from userspace.

 - A Kconfig fix for toolchain vector detection, which now correctly
   detects vector support on toolchains where the V extension depends on
   the M extension.

 - A fix to avoid failing the linear mapping bootmem bounds check on
   NOMMU systems.

 - A fix for early alternatives on relocatable kernels.

* tag 'riscv-for-linus-6.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Fix RISCV_ALTERNATIVE_EARLY
  riscv: Do not restrict memory size because of linear mapping on nommu
  riscv: Fix toolchain vector detection
  riscv: misaligned: Restrict user access to kernel memory
  riscv: mm: Do not restrict mmap address based on hint
  riscv: selftests: Remove mmap hint address checks
  Revert "RISC-V: mm: Document mmap changes"

Merge tag 'bpf-6.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

2024-09-06T03:10:53+00:00

Pull bpf fixes from Alexei Starovoitov:

 - Fix crash when btf_parse_base() returns an error (Martin Lau)

 - Fix out of bounds access in btf_name_valid_section() (Jeongjun Park)

* tag 'bpf-6.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  selftests/bpf: Add a selftest to check for incorrect names
  bpf: add check for invalid name in btf_name_valid_section()
  bpf: Fix a crash when btf_parse_base() returns an error pointer

Merge tag 'net-6.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2024-09-06T00:08:01+00:00

Pull networking fixes from Jakub Kicinski:
 "Including fixes from can, bluetooth and wireless.

  No known regressions at this point. Another calm week, but chances are
  that has more to do with vacation season than the quality of our work.

  Current release - new code bugs:

   - smc: prevent NULL pointer dereference in txopt_get

   - eth: ti: am65-cpsw: number of XDP-related fixes

  Previous releases - regressions:

   - Revert "Bluetooth: MGMT/SMP: Fix address type when using SMP over
     BREDR/LE", it breaks existing user space

   - Bluetooth: qca: if memdump doesn't work, re-enable IBS to avoid
     later problems with suspend

   - can: mcp251x: fix deadlock if an interrupt occurs during
     mcp251x_open

   - eth: r8152: fix the firmware communication error due to use of bulk
     write

   - ptp: ocp: fix serial port information export

   - eth: igb: fix not clearing TimeSync interrupts for 82580

   - Revert "wifi: ath11k: support hibernation", fix suspend on Lenovo

  Previous releases - always broken:

   - eth: intel: fix crashes and bugs when reconfiguration and resets
     happening in parallel

   - wifi: ath11k: fix NULL dereference in ath11k_mac_get_eirp_power()

  Misc:

   - docs: netdev: document guidance on cleanup.h"

* tag 'net-6.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (61 commits)
  ila: call nf_unregister_net_hooks() sooner
  tools/net/ynl: fix cli.py --subscribe feature
  MAINTAINERS: fix ptp ocp driver maintainers address
  selftests: net: enable bind tests
  net: dsa: vsc73xx: fix possible subblocks range of CAPT block
  sched: sch_cake: fix bulk flow accounting logic for host fairness
  docs: netdev: document guidance on cleanup.h
  net: xilinx: axienet: Fix race in axienet_stop
  net: bridge: br_fdb_external_learn_add(): always set EXT_LEARN
  r8152: fix the firmware doesn't work
  fou: Fix null-ptr-deref in GRO.
  bareudp: Fix device stats updates.
  net: mana: Fix error handling in mana_create_txq/rxq's NAPI cleanup
  bpf, net: Fix a potential race in do_sock_getsockopt()
  net: dqs: Do not use extern for unused dql_group
  sch/netem: fix use after free in netem_dequeue
  usbnet: modern method to get random MAC
  MAINTAINERS: wifi: cw1200: add net-cw1200.h
  ice: do not bring the VSI up, if it was down before the XDP setup
  ice: remove ICE_CFG_BUSY locking from AF_XDP code
  ...

tools/net/ynl: fix cli.py --subscribe feature

2024-09-05T21:56:45+00:00

Execution of command:
./tools/net/ynl/cli.py --spec Documentation/netlink/specs/dpll.yaml /
	--subscribe "monitor" --sleep 10
fails with:
  File "/repo/./tools/net/ynl/cli.py", line 109, in main
    ynl.check_ntf()
  File "/repo/tools/net/ynl/lib/ynl.py", line 924, in check_ntf
    op = self.rsp_by_value[nl_msg.cmd()]
KeyError: 19

Parsing Generic Netlink notification messages performs lookup for op in
the message. The message was not yet decoded, and is not yet considered
GenlMsg, thus msg.cmd() returns Generic Netlink family id (19) instead of
proper notification command id (i.e.: DPLL_CMD_PIN_CHANGE_NTF=13).

Allow the op to be obtained within NetlinkProtocol.decode(..) itself if the
op was not passed to the decode function, thus allow parsing of Generic
Netlink notifications without causing the failure.

Suggested-by: Donald Hunter 
Link: https://lore.kernel.org/netdev/m2le0n5xpn.fsf@gmail.com/
Fixes: 0a966d606c68 ("tools/net/ynl: Fix extack decoding for directional ops")
Signed-off-by: Arkadiusz Kubalewski 
Reviewed-by: Donald Hunter 
Link: https://patch.msgid.link/20240904135034.316033-1-arkadiusz.kubalewski@intel.com
Signed-off-by: Jakub Kicinski

selftests: net: enable bind tests

2024-09-05T21:38:15+00:00

bind_wildcard is compiled but not run, bind_timewait is not compiled.

These two tests complete in a very short time, use the test harness
properly, and seem reasonable to enable.

The author of the tests confirmed via email that these were
intended to be run.

Enable these two tests.

Fixes: 13715acf8ab5 ("selftest: Add test for bind() conflicts.")
Fixes: 2c042e8e54ef ("tcp: Add selftest for bind() and TIME_WAIT.")
Signed-off-by: Jamie Bainbridge 
Reviewed-by: Eric Dumazet 
Reviewed-by: Kuniyuki Iwashima 
Link: https://patch.msgid.link/5a009b26cf5fb1ad1512d89c61b37e2fac702323.1725430322.git.jamie.bainbridge@gmail.com
Signed-off-by: Jakub Kicinski

selftests/bpf: Add a selftest to check for incorrect names

2024-09-04T19:34:19+00:00

Add selftest for cases where btf_name_valid_section() does not properly
check for certain types of names.

Suggested-by: Eduard Zingerman 
Signed-off-by: Jeongjun Park 
Link: https://lore.kernel.org/r/20240831054742.364585-1-aha310510@gmail.com
Signed-off-by: Alexei Starovoitov 
Acked-by: Eduard Zingerman

Merge tag 'perf-tools-fixes-for-v6.11-2024-09-04' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

2024-09-04T19:10:19+00:00

Pull perf tools fixes from Namhyung Kim:
 "A number of small fixes for the late cycle:

   - Two more build fixes on 32-bit archs

   - Fixed a segfault during perf test

   - Fixed spinlock/rwlock accounting bug in perf lock contention"

* tag 'perf-tools-fixes-for-v6.11-2024-09-04' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
  perf daemon: Fix the build on more 32-bit architectures
  perf python: include "util/sample.h"
  perf lock contention: Fix spinlock and rwlock accounting
  perf test pmu: Set uninitialized PMU alias to null

perf daemon: Fix the build on more 32-bit architectures

2024-09-02T18:59:24+00:00

FYI: I'm carrying this on perf-tools-next.

The previous attempt fixed the build on debian:experimental-x-mipsel,
but when building on a larger set of containers I noticed it broke the
build on some other 32-bit architectures such as:

  42     7.87 ubuntu:18.04-x-arm            : FAIL gcc version 7.5.0 (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04)
    builtin-daemon.c: In function 'cmd_session_list':
    builtin-daemon.c:692:16: error: format '%llu' expects argument of type 'long long unsigned int', but argument 4 has type 'long int' [-Werror=format=]
       fprintf(out, "%c%" PRIu64,
                    ^~~~~
    builtin-daemon.c:694:13:
        csv_sep, (curr - daemon->start) / 60);
                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
    In file included from builtin-daemon.c:3:0:
    /usr/arm-linux-gnueabihf/include/inttypes.h:105:34: note: format string is defined here
     # define PRIu64  __PRI64_PREFIX "u"

So lets cast that time_t (32-bit/64-bit) to uint64_t to make sure it
builds everywhere.

Fixes: 4bbe6002931954bb ("perf daemon: Fix the build on 32-bit architectures")
Signed-off-by: Arnaldo Carvalho de Melo 
Link: https://lore.kernel.org/r/ZsPmldtJ0D9Cua9_@x1
Signed-off-by: Namhyung Kim

perf python: include "util/sample.h"

2024-09-02T18:59:24+00:00

The 32-bit arm build system will complain:

tools/perf/util/python.c:75:28: error: field ‘sample’ has incomplete type
   75 |         struct perf_sample sample;

However, arm64 build system doesn't complain this.

The root cause is arm64 define "HAVE_KVM_STAT_SUPPORT := 1" in
tools/perf/arch/arm64/Makefile, but arm arch doesn't define this.
This will lead to kvm-stat.h include other header files on arm64 build
system, especially "util/sample.h" for util/python.c.

This will try to directly include "util/sample.h" for "util/python.c" to
avoid such build issue on arm platform.

Signed-off-by: Xu Yang 
Cc: imx@lists.linux.dev
Link: https://lore.kernel.org/r/20240819023403.201324-1-xu.yang_2@nxp.com
Signed-off-by: Namhyung Kim

perf lock contention: Fix spinlock and rwlock accounting

2024-09-02T18:59:24+00:00

The spinlock and rwlock use a single-element per-cpu array to track
current locks due to performance reason.  But this means the key is
always available and it cannot simply account lock stats in the array
because some of them are invalid.

In fact, the contention_end() program in the BPF invalidates the entry
by setting the 'lock' value to 0 instead of deleting the entry for the
hashmap.  So it should skip entries with the lock value of 0 in the
account_end_timestamp().

Otherwise, it'd have spurious high contention on an idle machine:

  $ sudo perf lock con -ab -Y spinlock sleep 3
   contended   total wait     max wait     avg wait         type   caller

           8      4.72 s       1.84 s     590.46 ms     spinlock   rcu_core+0xc7
           8      1.87 s       1.87 s     233.48 ms     spinlock   process_one_work+0x1b5
           2      1.87 s       1.87 s     933.92 ms     spinlock   worker_thread+0x1a2
           3      1.81 s       1.81 s     603.93 ms     spinlock   tmigr_update_events+0x13c
           2      1.72 s       1.72 s     861.98 ms     spinlock   tick_do_update_jiffies64+0x25
           6     42.48 us     13.02 us      7.08 us     spinlock   futex_q_lock+0x2a
           1     13.03 us     13.03 us     13.03 us     spinlock   futex_wake+0xce
           1     11.61 us     11.61 us     11.61 us     spinlock   rcu_core+0xc7

I don't believe it has contention on a spinlock longer than 1 second.
After this change, it only reports some small contentions.

  $ sudo perf lock con -ab -Y spinlock sleep 3
   contended   total wait     max wait     avg wait         type   caller

           4    133.51 us     43.29 us     33.38 us     spinlock   tick_do_update_jiffies64+0x25
           4     69.06 us     31.82 us     17.27 us     spinlock   process_one_work+0x1b5
           2     50.66 us     25.77 us     25.33 us     spinlock   rcu_core+0xc7
           1     28.45 us     28.45 us     28.45 us     spinlock   rcu_core+0xc7
           1     24.77 us     24.77 us     24.77 us     spinlock   tmigr_update_events+0x13c
           1     23.34 us     23.34 us     23.34 us     spinlock   raw_spin_rq_lock_nested+0x15

Fixes: b5711042a1c8 ("perf lock contention: Use per-cpu array map for spinlocks")
Reported-by: Xi Wang 
Cc: Song Liu 
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20240828052953.1445862-1-namhyung@kernel.org
Signed-off-by: Namhyung Kim