Pull networking fixes from Jakub Kicinski:
 "Networking fixes, including fixes from mac80211, wifi, bpf.

  Relatively large batches of fixes from BPF and the WiFi stack, calm in
  general networking.

  Current release - regressions:

   - dpaa2-eth: fix buffer overrun when reporting ethtool statistics

  Current release - new code bugs:

   - bpf: fix incorrect state pruning for <8B spill/fill

   - iavf:
       - add missing unlocks in iavf_watchdog_task()
       - do not override the adapter state in the watchdog task (again)

   - mlxsw: spectrum_router: consolidate MAC profiles when possible

  Previous releases - regressions:

   - mac80211 fixes:
       - rate control, avoid driver crash for retransmitted frames
       - regression in SSN handling of addba tx
       - a memory leak where sta_info is not freed
       - marking TX-during-stop for TX in in_reconfig, prevent stall

   - cfg80211: acquire wiphy mutex on regulatory work

   - wifi drivers: fix build regressions and LED config dependency

   - virtio_net: fix rx_drops stat for small pkts

   - dsa: mv88e6xxx: unforce speed & duplex in mac_link_down()

  Previous releases - always broken:

   - bpf fixes:
       - kernel address leakage in atomic fetch
       - kernel address leakage in atomic cmpxchg's r0 aux reg
       - signed bounds propagation after mov32
       - extable fixup offset
       - extable address check

   - mac80211:
       - fix the size used for building probe request
       - send ADDBA requests using the tid/queue of the aggregation
         session
       - agg-tx: don't schedule_and_wake_txq() under sta->lock, avoid
         deadlocks
       - validate extended element ID is present

   - mptcp:
       - never allow the PM to close a listener subflow (null-defer)
       - clear 'kern' flag from fallback sockets, prevent crash
       - fix deadlock in __mptcp_push_pending()

   - inet_diag: fix kernel-infoleak for UDP sockets

   - xsk: do not sleep in poll() when need_wakeup set

   - smc: avoid very long waits in smc_release()

   - sch_ets: don't remove idle classes from the round-robin list

   - netdevsim:
       - zero-initialize memory for bpf map's value, prevent info leak
       - don't let user space overwrite read only (max) ethtool parms

   - ixgbe: set X550 MDIO speed before talking to PHY

   - stmmac:
       - fix null-deref in flower deletion w/ VLAN prio Rx steering
       - dwmac-rk: fix oob read in rk_gmac_setup

   - ice: time stamping fixes

   - systemport: add global locking for descriptor life cycle"

* tag 'net-5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (89 commits)
  bpf, selftests: Fix racing issue in btf_skc_cls_ingress test
  selftest/bpf: Add a test that reads various addresses.
  bpf: Fix extable address check.
  bpf: Fix extable fixup offset.
  bpf, selftests: Add test case trying to taint map value pointer
  bpf: Make 32->64 bounds propagation slightly more robust
  bpf: Fix signed bounds propagation after mov32
  sit: do not call ipip6_dev_free() from sit_init_net()
  net: systemport: Add global locking for descriptor lifecycle
  net/smc: Prevent smc_release() from long blocking
  net: Fix double 0x prefix print in SKB dump
  virtio_net: fix rx_drops stat for small pkts
  dsa: mv88e6xxx: fix debug print for SPEED_UNFORCED
  sfc_ef100: potential dereference of null pointer
  net: stmmac: dwmac-rk: fix oob read in rk_gmac_setup
  net: usb: lan78xx: add Allied Telesis AT29M2-AF
  net/packet: rx_owner_map depends on pg_vec
  netdevsim: Zero-initialize memory for new map's value in function nsim_bpf_map_alloc
  dpaa2-eth: fix ethtool statistics
  ixgbe: set X550 MDIO speed before talking to PHY
  ...

Pull char/misc driver fixes from Greg KH:
 "Here are a bunch of small char/misc and other driver subsystem fixes.

  Included in here are:

   - iio driver fixes for reported problems

   - phy driver fixes for a number of reported problems

   - mhi resume bugfix for broken hardware

   - nvmem driver fix

   - rtsx driver fix for irq issues

   - fastrpc packet parsing fix

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (33 commits)
  bus: mhi: core: Add support for forced PM resume
  iio: trigger: stm32-timer: fix MODULE_ALIAS
  misc: rtsx: Avoid mangling IRQ during runtime PM
  nvmem: eeprom: at25: fix FRAM byte_len
  misc: fastrpc: fix improper packet size calculation
  MAINTAINERS: add maintainer for Qualcomm FastRPC driver
  bus: mhi: pci_generic: Fix device recovery failed issue
  iio: adc: stm32: fix null pointer on defer_probe error
  phy: HiSilicon: Fix copy and paste bug in error handling
  dt-bindings: phy: zynqmp-psgtr: fix USB phy name
  phy: ti: omap-usb2: Fix the kernel-doc style
  phy: qualcomm: ipq806x-usb: Fix kernel-doc style
  iio: at91-sama5d2: Fix incorrect sign extension
  iio: adc: axp20x_adc: fix charging current reporting on AXP22x
  iio: gyro: adxrs290: fix data signedness
  phy: ti: tusb1210: Fix the kernel-doc warn
  phy: qualcomm: usb-hsic: Fix the kernel-doc warn
  phy: qualcomm: qmp: Add missing struct documentation
  phy: mvebu-cp110-utmi: Fix kernel-doc warns
  iio: ad7768-1: Call iio_trigger_notify_done() on error
  ...

For whatever reason, some devices like QCA6390, WCN6855 using ath11k
are not in M3 state during PM resume, but still functional. The
mhi_pm_resume should then not fail in those cases, and let the higher
level device specific stack continue resuming process.

Add an API mhi_pm_resume_force(), to force resuming irrespective of the
current MHI state. This fixes a regression with non functional ath11k WiFi
after suspend/resume cycle on some machines.

Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=214179

Link: https://lore.kernel.org/regressions/871r5p0x2u.fsf@codeaurora.org/
Fixes: 020d3b26c07a ("bus: mhi: Early MHI resume failure in non M3 state")
Cc: stable@vger.kernel.org #5.13
Reported-by: Kalle Valo <kvalo@codeaurora.org>
Reported-by: Pengyu Ma <mapengyu@gmail.com>
Tested-by: Kalle Valo <kvalo@kernel.org>
Acked-by: Kalle Valo <kvalo@kernel.org>
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
[mani: Switched to API, added bug report, reported-by tags and CCed stable]
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20211209131633.4168-1-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

After mt7921s got added, there are two possible build problems:

a) mt7921s does not get built at all if mt7921e is not also enabled

b) there is a link error when mt7921e is a loadable module, but mt7921s
configured as built-in:

ERROR: modpost: "mt7921_mac_sta_add" [drivers/net/wireless/mediatek/mt76/mt7921/mt7921e.ko] undefined!
ERROR: modpost: "mt7921_mac_sta_assoc" [drivers/net/wireless/mediatek/mt76/mt7921/mt7921e.ko] undefined!
ERROR: modpost: "mt7921_mac_sta_remove" [drivers/net/wireless/mediatek/mt76/mt7921/mt7921e.ko] undefined!
ERROR: modpost: "mt7921_mac_write_txwi" [drivers/net/wireless/mediatek/mt76/mt7921/mt7921e.ko] undefined!
ERROR: modpost: "mt7921_mcu_drv_pmctrl" [drivers/net/wireless/mediatek/mt76/mt7921/mt7921e.ko] undefined!
ERROR: modpost: "mt7921_mcu_fill_message" [drivers/net/wireless/mediatek/mt76/mt7921/mt7921e.ko] undefined!
ERROR: modpost: "mt7921_mcu_parse_response" [drivers/net/wireless/mediatek/mt76/mt7921/mt7921e.ko] undefined!
ERROR: modpost: "mt7921_ops" [drivers/net/wireless/mediatek/mt76/mt7921/mt7921e.ko] undefined!
ERROR: modpost: "mt7921_queue_rx_skb" [drivers/net/wireless/mediatek/mt76/mt7921/mt7921e.ko] undefined!
ERROR: modpost: "mt7921_update_channel" [drivers/net/wireless/mediatek/mt76/mt7921/mt7921e.ko] undefined!

Fix both by making sure that Kbuild enters the subdirectory when
either one is enabled.

Fixes: 48fab5bbef40 ("mt76: mt7921: introduce mt7921s support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211204173848.873293-3-arnd@kernel.org

This is now the only driver that selects the LEDS_CLASS framework,
which is normally user-selectable. While it doesn't strictly cause
a bug, rework the Kconfig logic to be more consistent with what
other drivers do, and only enable LED support in brcmsmac if the
dependencies are all there, rather than using 'select' to enable
what it needs.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211204173848.873293-2-arnd@kernel.org

The dependencies for LED configuration are highly inconsistent and too
complicated at the moment. One of the results is a randconfig failure I
get very rarely when LEDS_CLASS is in a loadable module, but the wireless
core is built-in:

WARNING: unmet direct dependencies detected for MAC80211_LEDS
  Depends on [n]: NET [=y] && WIRELESS [=y] && MAC80211 [=y] && (LEDS_CLASS [=m]=y || LEDS_CLASS [=m]=MAC80211 [=y])
  Selected by [m]:
  - IWLEGACY [=m] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_INTEL [=y]
  - IWLWIFI_LEDS [=y] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_INTEL [=y] && IWLWIFI [=m] && (LEDS_CLASS [=m]=y || LEDS_CLASS [=m]=IWLWIFI [=m]) && (IWLMVM [=m] || IWLDVM [=m])

aarch64-linux-ld: drivers/net/wireless/ath/ath5k/led.o: in function `ath5k_register_led':
led.c:(.text+0x60): undefined reference to `led_classdev_register_ext'
aarch64-linux-ld: drivers/net/wireless/ath/ath5k/led.o: in function `ath5k_unregister_leds':
led.c:(.text+0x200): undefined reference to `led_classdev_unregister'

For iwlwifi, the dependency is wrong, since this config prevents the
MAC80211_LEDS code from being part of a built-in MAC80211 driver.

For iwlegacy, this is worse because the driver tries to force-enable
the other subsystems, which is both a layering violation and a bug
because it will still fail with MAC80211=y and IWLEGACY=m, leading
to LEDS_CLASS being a module as well.

The actual link failure in the ath5k driver is a result of MAC80211_LEDS
being enabled but not usable. With the Kconfig logic fixed in the
Intel drivers, the ath5k driver works as expected again.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211204173848.873293-1-arnd@kernel.org

If we get to the WARN_ONCE(..., "Got a HT rate (...)", ...)
here with a NULL sta, then we crash because mvmsta is bad
and we try to dereference it. Fix that by printing -1 as the
state if no station was given.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes: 6761a718263a ("iwlwifi: mvm: add explicit check for non-data frames in get Tx rate")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/iwlwifi.20211203140410.1a1541d7dcb5.I606c746e11447fe168cf046376b70b04e278c3b4@changeid

Fix pointer overwrite in mt7921s_tx_prepare_skb and
mt7663_usb_sdio_tx_prepare_skb routines since in
commit '2a9e9857473b ("mt76: fix possible pktid leak")
mt76_tx_status_skb_add() has been moved out of
mt7921s_write_txwi()/mt7663_usb_sdio_write_txwi() overwriting
hw key pointer in ieee80211_tx_info structure. Fix the issue saving
key pointer before running mt76_tx_status_skb_add().

Fixes: 2a9e9857473b ("mt76: fix possible pktid leak")
Tested-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/eba40c84b6d114f618e2ae486cc6d0f2e9272cf9.1638193069.git.lorenzo@kernel.org

As reported by Exuvo is possible that we have lot's of EPROTO errors
during device start i.e. firmware load. But after that device works
correctly. Hence marking device gone by few EPROTO errors done by
commit e383c70474db ("rt2x00: check number of EPROTO errors") caused
regression - Exuvo device stop working after kernel update. To fix
disable the check during device start.

Link: https://lore.kernel.org/linux-wireless/bff7d309-a816-6a75-51b6-5928ef4f7a8c@exuvo.se/
Reported-and-tested-by: Exuvo <exuvo@exuvo.se>
Fixes: e383c70474db ("rt2x00: check number of EPROTO errors")
Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211111141003.GA134627@wp.pl

Fix a possible idr pkt-id leak if the packet is dropped on tx side

Fixes: bd1e3e7b693c ("mt76: introduce packet_id idr")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/a560caffcc24452fb48af53904bbe5c45ea5db93.1637602268.git.lorenzo@kernel.org