Pull cxl fixes from Dan Williams:
 "A build regression fix, a device compatibility fix, and an original
  bug preventing creation of large (16 device) interleave sets:

   - Fix unit test build regression fallout from global
     "missing-prototypes" change

   - Fix compatibility with devices that do not support interrupts

   - Fix overflow when calculating the capacity of large interleave sets"

* tag 'cxl-fixes-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/region：Fix overflow issue in alloc_hpa()
  cxl/pci: Skip irq features if MSI/MSI-X are not supported
  tools/testing/nvdimm: Disable "missing prototypes / declarations" warnings
  tools/testing/cxl: Disable "missing prototypes / declarations" warnings

Pull power management fixes from Rafael Wysocki:
 "These fix two cpufreq drivers and the cpupower utility.

  Specifics:

   - Fix the handling of scaling_max/min_freq sysfs attributes in the
     AMD P-state cpufreq driver (Mario Limonciello)

   - Make the intel_pstate cpufreq driver avoid unnecessary computation
     of the HWP performance level corresponding to a given frequency in
     the cases when it is known already, which also helps to avoid
     reducing the maximum CPU capacity artificially on some systems
     (Rafael J. Wysocki)

   - Fix compilation of the cpupower utility when CFLAGS is passed as a
     make argument for cpupower, but it does not take effect as expected
     due to mishandling (Stanley Chan)"

* tag 'pm-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq/amd-pstate: Fix setting scaling max/min freq values
  cpufreq: intel_pstate: Refine computation of P-state for given frequency
  tools cpupower bench: Override CFLAGS assignments

Pull networking fixes from Paolo Abeni:
 "Including fixes from bpf, netfilter and WiFi.

  Jakub is doing a lot of work to include the self-tests in our CI, as a
  result a significant amount of self-tests related fixes is flowing in
  (and will likely continue in the next few weeks).

  Current release - regressions:

   - bpf: fix a kernel crash for the riscv 64 JIT

   - bnxt_en: fix memory leak in bnxt_hwrm_get_rings()

   - revert "net: macsec: use skb_ensure_writable_head_tail to expand
     the skb"

  Previous releases - regressions:

   - core: fix removing a namespace with conflicting altnames

   - tc/flower: fix chain template offload memory leak

   - tcp:
      - make sure init the accept_queue's spinlocks once
      - fix autocork on CPUs with weak memory model

   - udp: fix busy polling

   - mlx5e:
      - fix out-of-bound read in port timestamping
      - fix peer flow lists corruption

   - iwlwifi: fix a memory corruption

  Previous releases - always broken:

   - netfilter:
      - nft_chain_filter: handle NETDEV_UNREGISTER for inet/ingress
        basechain
      - nft_limit: reject configurations that cause integer overflow

   - bpf: fix bpf_xdp_adjust_tail() with XSK zero-copy mbuf, avoiding a
     NULL pointer dereference upon shrinking

   - llc: make llc_ui_sendmsg() more robust against bonding changes

   - smc: fix illegal rmb_desc access in SMC-D connection dump

   - dpll: fix pin dump crash for rebound module

   - bnxt_en: fix possible crash after creating sw mqprio TCs

   - hv_netvsc: calculate correct ring size when PAGE_SIZE is not 4kB

  Misc:

   - several self-tests fixes for better integration with the netdev CI

   - added several missing modules descriptions"

* tag 'net-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (88 commits)
  tsnep: Fix XDP_RING_NEED_WAKEUP for empty fill ring
  tsnep: Remove FCS for XDP data path
  net: fec: fix the unhandled context fault from smmu
  selftests: bonding: do not test arp/ns target with mode balance-alb/tlb
  fjes: fix memleaks in fjes_hw_setup
  i40e: update xdp_rxq_info::frag_size for ZC enabled Rx queue
  i40e: set xdp_rxq_info::frag_size
  xdp: reflect tail increase for MEM_TYPE_XSK_BUFF_POOL
  ice: update xdp_rxq_info::frag_size for ZC enabled Rx queue
  intel: xsk: initialize skb_frag_t::bv_offset in ZC drivers
  ice: remove redundant xdp_rxq_info registration
  i40e: handle multi-buffer packets that are shrunk by xdp prog
  ice: work on pre-XDP prog frag count
  xsk: fix usage of multi-buffer BPF helpers for ZC XDP
  xsk: make xsk_buff_pool responsible for clearing xdp_buff::flags
  xsk: recycle buffer in case Rx queue was full
  net: fill in MODULE_DESCRIPTION()s for rvu_mbox
  net: fill in MODULE_DESCRIPTION()s for litex
  net: fill in MODULE_DESCRIPTION()s for fsl_pq_mdio
  net: fill in MODULE_DESCRIPTION()s for fec
  ...

The prio_arp/ns tests hard code the mode to active-backup. At the same
time, The balance-alb/tlb modes do not support arp/ns target. So remove
the prio_arp/ns tests from the loop and only test active-backup mode.

Fixes: 481b56e0391e ("selftests: bonding: re-format bond option tests")
Reported-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Closes: https://lore.kernel.org/netdev/17415.1705965957@famine/
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Link: https://lore.kernel.org/r/20240123075917.1576360-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

This test is missing a whole bunch of checks for interface
renaming and one ifup. Presumably it was only used on a system
with renaming disabled and NetworkManager running.

Fixes: 91f430b2c49d ("selftests: net: add a test for UDP tunnel info infra")
Acked-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240123060529.1033912-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

If there is more than 32 cpus the bitmask will start to contain
commas, leading to:

./rps_default_mask.sh: line 36: [: 00000000,00000000: integer expression expected

Remove the commas, bash doesn't interpret leading zeroes as oct
so that should be good enough. Switch to bash, Simon reports that
not all shells support this type of substitution.

Fixes: c12e0d5f267d ("self-tests: introduce self-tests for RPS default mask")
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240122195815.638997-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

We are missing a lot of config options from net selftests,
it seems:

tun/tap:     CONFIG_TUN, CONFIG_MACVLAN, CONFIG_MACVTAP
fib_tests:   CONFIG_NET_SCH_FQ_CODEL
l2tp:        CONFIG_L2TP, CONFIG_L2TP_V3, CONFIG_L2TP_IP, CONFIG_L2TP_ETH
sctp-vrf:    CONFIG_INET_DIAG
txtimestamp: CONFIG_NET_CLS_U32
vxlan_mdb:   CONFIG_BRIDGE_VLAN_FILTERING
gre_gso:     CONFIG_NET_IPGRE_DEMUX, CONFIG_IP_GRE, CONFIG_IPV6_GRE
srv6_end_dt*_l3vpn:   CONFIG_IPV6_SEG6_LWTUNNEL
ip_local_port_range:  CONFIG_MPTCP
fib_test:    CONFIG_NET_CLS_BASIC
rtnetlink:   CONFIG_MACSEC, CONFIG_NET_SCH_HTB, CONFIG_XFRM_INTERFACE
             CONFIG_NET_IPGRE, CONFIG_BONDING
fib_nexthops: CONFIG_MPLS, CONFIG_MPLS_ROUTING
vxlan_mdb:   CONFIG_NET_ACT_GACT
tls:         CONFIG_TLS, CONFIG_CRYPTO_CHACHA20POLY1305
psample:     CONFIG_PSAMPLE
fcnal:       CONFIG_TCP_MD5SIG

Try to add them in a semi-alphabetical order.

Fixes: 62199e3f1658 ("selftests: net: Add VXLAN MDB test")
Fixes: c12e0d5f267d ("self-tests: introduce self-tests for RPS default mask")
Fixes: 122db5e3634b ("selftests/net: add MPTCP coverage for IP_LOCAL_PORT_RANGE")
Link: https://lore.kernel.org/r/20240122203528.672004-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Jakub reported that ASSERT_EQ(cpu, i) in so_incoming_cpu.c seems to
fire somewhat randomly.

  # #  RUN           so_incoming_cpu.before_reuseport.test3 ...
  # # so_incoming_cpu.c:191:test3:Expected cpu (32) == i (0)
  # # test3: Test terminated by assertion
  # #          FAIL  so_incoming_cpu.before_reuseport.test3
  # not ok 3 so_incoming_cpu.before_reuseport.test3

When the test failed, not-yet-accepted CLOSE_WAIT sockets received
SYN with a "challenging" SEQ number, which was sent from an unexpected
CPU that did not create the receiver.

The test basically does:

  1. for each cpu:
    1-1. create a server
    1-2. set SO_INCOMING_CPU

  2. for each cpu:
    2-1. set cpu affinity
    2-2. create some clients
    2-3. let clients connect() to the server on the same cpu
    2-4. close() clients

  3. for each server:
    3-1. accept() all child sockets
    3-2. check if all children have the same SO_INCOMING_CPU with the server

The root cause was the close() in 2-4. and net.ipv4.tcp_tw_reuse.

In a loop of 2., close() changed the client state to FIN_WAIT_2, and
the peer transitioned to CLOSE_WAIT.

In another loop of 2., connect() happened to select the same port of
the FIN_WAIT_2 socket, and it was reused as the default value of
net.ipv4.tcp_tw_reuse is 2.

As a result, the new client sent SYN to the CLOSE_WAIT socket from
a different CPU, and the receiver's sk_incoming_cpu was overwritten
with unexpected CPU ID.

Also, the SYN had a different SEQ number, so the CLOSE_WAIT socket
responded with Challenge ACK.  The new client properly returned RST
and effectively killed the CLOSE_WAIT socket.

This way, all clients were created successfully, but the error was
detected later by 3-2., ASSERT_EQ(cpu, i).

To avoid the failure, let's make sure that (i) the number of clients
is less than the number of available ports and (ii) such reuse never
happens.

Fixes: 6df96146b202 ("selftest: Add test for SO_INCOMING_CPU.")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Tested-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20240120031642.67014-1-kuniyu@amazon.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Prevent warnings of the form:

tools/testing/nvdimm/config_check.c:4:6: error: no previous prototype
for ‘check’ [-Werror=missing-prototypes]

...by locally disabling some warnings.

It turns out that:

Commit 0fcb70851fbf ("Makefile.extrawarn: turn on missing-prototypes globally")

...in addition to expanding in-tree coverage, also impacts out-of-tree
module builds like those in tools/testing/nvdimm/.

Filter out the warning options on unit test code that does not effect
mainline builds.

Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://lore.kernel.org/r/170543984331.460832.1780246477583036191.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

Prevent warnings of the form:

tools/testing/cxl/test/mock.c:44:6: error: no previous prototype for
‘__wrap_is_acpi_device_node’ [-Werror=missing-prototypes]

tools/testing/cxl/test/mock.c:63:5: error: no previous prototype for
‘__wrap_acpi_table_parse_cedt’ [-Werror=missing-prototypes]

tools/testing/cxl/test/mock.c:81:13: error: no previous prototype for
‘__wrap_acpi_evaluate_integer’ [-Werror=missing-prototypes]

...by locally disabling some warnings.

It turns out that:

Commit 0fcb70851fbf ("Makefile.extrawarn: turn on missing-prototypes globally")

...in addition to expanding in-tree coverage, also impacts out-of-tree
module builds like those in tools/testing/cxl/.

Filter out the warning options on unit test code that does not effect
mainline builds.

Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://lore.kernel.org/r/170543983780.460832.10920261849128601697.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>