1. 30 Jul, 2024 7 commits
    • Matthieu Baerts (NGI0)'s avatar
      selftests: mptcp: join: check backup support in signal endp · f833470c
      Matthieu Baerts (NGI0) authored
      Before the previous commit, 'signal' endpoints with the 'backup' flag
      were ignored when sending the MP_JOIN.
      
      The MPTCP Join selftest has then been modified to validate this case:
      the "single address, backup" test, is now validating the MP_JOIN with a
      backup flag as it is what we expect it to do with such name. The
      previous version has been kept, but renamed to "single address, switch
      to backup" to avoid confusions.
      
      The "single address with port, backup" test is also now validating the
      MPJ with a backup flag, which makes more sense than checking the switch
      to backup with an MP_PRIO.
      
      The "mpc backup both sides" test is now validating that the backup flag
      is also set in MP_JOIN from and to the addresses used in the initial
      subflow, using the special ID 0.
      
      The 'Fixes' tag here below is the same as the one from the previous
      commit: this patch here is not fixing anything wrong in the selftests,
      but it validates the previous fix for an issue introduced by this commit
      ID.
      
      Fixes: 4596a2c1 ("mptcp: allow creating non-backup subflows")
      Cc: stable@vger.kernel.org
      Reviewed-by: default avatarMat Martineau <martineau@kernel.org>
      Signed-off-by: default avatarMatthieu Baerts (NGI0) <matttbe@kernel.org>
      Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      f833470c
    • Matthieu Baerts (NGI0)'s avatar
      mptcp: pm: fix backup support in signal endpoints · 6834097f
      Matthieu Baerts (NGI0) authored
      There was a support for signal endpoints, but only when the endpoint's
      flag was changed during a connection. If an endpoint with the signal and
      backup was already present, the MP_JOIN reply was not containing the
      backup flag as expected.
      
      That's confusing to have this inconsistent behaviour. On the other hand,
      the infrastructure to set the backup flag in the SYN + ACK + MP_JOIN was
      already there, it was just never set before. Now when requesting the
      local ID from the path-manager, the backup status is also requested.
      
      Note that when the userspace PM is used, the backup flag can be set if
      the local address was already used before with a backup flag, e.g. if
      the address was announced with the 'backup' flag, or a subflow was
      created with the 'backup' flag.
      
      Fixes: 4596a2c1 ("mptcp: allow creating non-backup subflows")
      Cc: stable@vger.kernel.org
      Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/507Reviewed-by: default avatarMat Martineau <martineau@kernel.org>
      Signed-off-by: default avatarMatthieu Baerts (NGI0) <matttbe@kernel.org>
      Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      6834097f
    • Matthieu Baerts (NGI0)'s avatar
      selftests: mptcp: join: validate backup in MPJ · 935ff5bb
      Matthieu Baerts (NGI0) authored
      A peer can notify the other one that a subflow has to be treated as
      "backup" by two different ways: either by sending a dedicated MP_PRIO
      notification, or by setting the backup flag in the MP_JOIN handshake.
      
      The selftests were previously monitoring the former, but not the latter.
      This is what is now done here by looking at these new MIB counters when
      validating the 'backup' cases:
      
        MPTcpExtMPJoinSynBackupRx
        MPTcpExtMPJoinSynAckBackupRx
      
      The 'Fixes' tag here below is the same as the one from the previous
      commit: this patch here is not fixing anything wrong in the selftests,
      but it will help to validate a new fix for an issue introduced by this
      commit ID.
      
      Fixes: 4596a2c1 ("mptcp: allow creating non-backup subflows")
      Cc: stable@vger.kernel.org
      Reviewed-by: default avatarMat Martineau <martineau@kernel.org>
      Signed-off-by: default avatarMatthieu Baerts (NGI0) <matttbe@kernel.org>
      Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      935ff5bb
    • Matthieu Baerts (NGI0)'s avatar
      mptcp: mib: count MPJ with backup flag · 4dde0d72
      Matthieu Baerts (NGI0) authored
      Without such counters, it is difficult to easily debug issues with MPJ
      not having the backup flags on production servers.
      
      This is not strictly a fix, but it eases to validate the following
      patches without requiring to take packet traces, to query ongoing
      connections with Netlink with admin permissions, or to guess by looking
      at the behaviour of the packet scheduler. Also, the modification is self
      contained, isolated, well controlled, and the increments are done just
      after others, there from the beginning. It looks then safe, and helpful
      to backport this.
      
      Fixes: 4596a2c1 ("mptcp: allow creating non-backup subflows")
      Cc: stable@vger.kernel.org
      Reviewed-by: default avatarMat Martineau <martineau@kernel.org>
      Signed-off-by: default avatarMatthieu Baerts (NGI0) <matttbe@kernel.org>
      Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      4dde0d72
    • Matthieu Baerts (NGI0)'s avatar
      mptcp: pm: only set request_bkup flag when sending MP_PRIO · 4258b948
      Matthieu Baerts (NGI0) authored
      The 'backup' flag from mptcp_subflow_context structure is supposed to be
      set only when the other peer flagged a subflow as backup, not the
      opposite.
      
      Fixes: 06706542 ("mptcp: add the outgoing MP_PRIO support")
      Cc: stable@vger.kernel.org
      Reviewed-by: default avatarMat Martineau <martineau@kernel.org>
      Signed-off-by: default avatarMatthieu Baerts (NGI0) <matttbe@kernel.org>
      Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      4258b948
    • Matthieu Baerts (NGI0)'s avatar
      mptcp: distinguish rcv vs sent backup flag in requests · efd340bf
      Matthieu Baerts (NGI0) authored
      When sending an MP_JOIN + SYN + ACK, it is possible to mark the subflow
      as 'backup' by setting the flag with the same name. Before this patch,
      the backup was set if the other peer set it in its MP_JOIN + SYN
      request.
      
      It is not correct: the backup flag should be set in the MPJ+SYN+ACK only
      if the host asks for it, and not mirroring what was done by the other
      peer. It is then required to have a dedicated bit for each direction,
      similar to what is done in the subflow context.
      
      Fixes: f296234c ("mptcp: Add handling of incoming MP_JOIN requests")
      Cc: stable@vger.kernel.org
      Reviewed-by: default avatarMat Martineau <martineau@kernel.org>
      Signed-off-by: default avatarMatthieu Baerts (NGI0) <matttbe@kernel.org>
      Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      efd340bf
    • Matthieu Baerts (NGI0)'s avatar
      mptcp: sched: check both directions for backup · b6a66e52
      Matthieu Baerts (NGI0) authored
      The 'mptcp_subflow_context' structure has two items related to the
      backup flags:
      
       - 'backup': the subflow has been marked as backup by the other peer
      
       - 'request_bkup': the backup flag has been set by the host
      
      Before this patch, the scheduler was only looking at the 'backup' flag.
      That can make sense in some cases, but it looks like that's not what we
      wanted for the general use, because either the path-manager was setting
      both of them when sending an MP_PRIO, or the receiver was duplicating
      the 'backup' flag in the subflow request.
      
      Note that the use of these two flags in the path-manager are going to be
      fixed in the next commits, but this change here is needed not to modify
      the behaviour.
      
      Fixes: f296234c ("mptcp: Add handling of incoming MP_JOIN requests")
      Cc: stable@vger.kernel.org
      Reviewed-by: default avatarMat Martineau <martineau@kernel.org>
      Signed-off-by: default avatarMatthieu Baerts (NGI0) <matttbe@kernel.org>
      Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      b6a66e52
  2. 29 Jul, 2024 16 commits
  3. 27 Jul, 2024 3 commits
  4. 26 Jul, 2024 14 commits
    • Luiz Augusto von Dentz's avatar
      Bluetooth: hci_event: Fix setting DISCOVERY_FINDING for passive scanning · df3d6a3e
      Luiz Augusto von Dentz authored
      DISCOVERY_FINDING shall only be set for active scanning as passive
      scanning is not meant to generate MGMT Device Found events causing
      discovering state to go out of sync since userspace would believe it
      is discovering when in fact it is just passive scanning.
      
      Cc: stable@vger.kernel.org
      Link: https://bugzilla.kernel.org/show_bug.cgi?id=219088
      Fixes: 2e2515c1 ("Bluetooth: hci_event: Set DISCOVERY_FINDING on SCAN_ENABLED")
      Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
      df3d6a3e
    • Arnd Bergmann's avatar
      Bluetooth: btmtk: remove #ifdef around declarations · 7a8c6fb2
      Arnd Bergmann authored
      The caller of these functions in btusb.c is guarded with an
      if(IS_ENABLED()) style check, so dead code is left out, but the
      declarations are still needed at compile time:
      
      drivers/bluetooth/btusb.c: In function 'btusb_mtk_reset':
      drivers/bluetooth/btusb.c:2705:15: error: implicit declaration of function 'btmtk_usb_subsys_reset' [-Wimplicit-function-declaration]
       2705 |         err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
            |               ^~~~~~~~~~~~~~~~~~~~~~
      drivers/bluetooth/btusb.c: In function 'btusb_send_frame_mtk':
      drivers/bluetooth/btusb.c:2720:23: error: implicit declaration of function 'alloc_mtk_intr_urb' [-Wimplicit-function-declaration]
       2720 |                 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
            |                       ^~~~~~~~~~~~~~~~~~
      drivers/bluetooth/btusb.c:2720:21: error: assignment to 'struct urb *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
       2720 |                 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
            |                     ^
      
      Fixes: f0c83a23 ("Bluetooth: btmtk: Fix btmtk.c undefined reference build error")
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
      Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
      7a8c6fb2
    • Arnd Bergmann's avatar
      Bluetooth: btmtk: Fix btmtk.c undefined reference build error harder · 61f7a8f9
      Arnd Bergmann authored
      The previous fix was incomplete as the link failure still persists
      with CONFIG_USB=m when the sdio or serial wrappers for btmtk.c
      are build-in:
      
      btmtk.c:(.text+0x468): undefined reference to `usb_alloc_urb'
      btmtk.c:(.text+0x488): undefined reference to `usb_free_urb'
      btmtk.c:(.text+0x500): undefined reference to `usb_anchor_urb'
      btmtk.c:(.text+0x50a): undefined reference to `usb_submit_urb'
      btmtk.c:(.text+0x92c): undefined reference to `usb_control_msg'
      btmtk.c:(.text+0xa92): undefined reference to `usb_unanchor_urb'
      btmtk.c:(.text+0x11e4): undefined reference to `usb_set_interface'
      btmtk.c:(.text+0x120a): undefined reference to `usb_kill_anchored_urbs'
      
      Disallow this configuration.
      
      Fixes: f0c83a23 ("Bluetooth: btmtk: Fix btmtk.c undefined reference build error")
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
      61f7a8f9
    • Chris Lu's avatar
      Bluetooth: btmtk: Fix btmtk.c undefined reference build error · f0c83a23
      Chris Lu authored
      MediaTek moved some usb interface related function to btmtk.c which
      may cause build failed if BT USB Kconfig wasn't enabled.
      Fix undefined reference by adding config check.
      
      btmtk.c:(.text+0x89c): undefined reference to `usb_alloc_urb'
      btmtk.c:(.text+0x8e3): undefined reference to `usb_free_urb'
      btmtk.c:(.text+0x956): undefined reference to `usb_free_urb'
      btmtk.c:(.text+0xa0e): undefined reference to `usb_anchor_urb'
      btmtk.c:(.text+0xb43): undefined reference to `usb_autopm_get_interface'
      btmtk.c:(.text+0xb7e): undefined reference to `usb_autopm_put_interface'
      btmtk.c:(.text+0xf70): undefined reference to `usb_disable_autosuspend'
      btmtk.c:(.text+0x133a): undefined reference to `usb_control_msg'
      
      Fixes: d019930b ("Bluetooth: btmtk: move btusb_mtk_hci_wmt_sync to btmtk.c")
      Reported-by: default avatarkernel test robot <lkp@intel.com>
      Closes: https://lore.kernel.org/oe-kbuild-all/202407091928.AH0aGZnx-lkp@intel.com/Signed-off-by: default avatarChris Lu <chris.lu@mediatek.com>
      Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
      f0c83a23
    • Luiz Augusto von Dentz's avatar
      Bluetooth: hci_sync: Fix suspending with wrong filter policy · 96b82af3
      Luiz Augusto von Dentz authored
      When suspending the scan filter policy cannot be 0x00 (no acceptlist)
      since that means the host has to process every advertisement report
      waking up the system, so this attempts to check if hdev is marked as
      suspended and if the resulting filter policy would be 0x00 (no
      acceptlist) then skip passive scanning if thre no devices in the
      acceptlist otherwise reset the filter policy to 0x01 so the acceptlist
      is used since the devices programmed there can still wakeup be system.
      
      Fixes: 182ee45d ("Bluetooth: hci_sync: Rework hci_suspend_notifier")
      Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
      96b82af3
    • Chris Lu's avatar
      Bluetooth: btmtk: Fix kernel crash when entering btmtk_usb_suspend · d09009bc
      Chris Lu authored
      If MediaTek's Bluetooth setup is unsuccessful, a NULL pointer issue
      occur when the system is suspended and the anchored kill function
      is called. To avoid this, add protection to prevent executing the
      anchored kill function if the setup is unsuccessful.
      
      [    6.922106] Hardware name: Acer Tomato (rev2) board (DT)
      [    6.922114] Workqueue: pm pm_runtime_work
      [    6.922132] pstate: 804000c9
      (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
      [    6.922147] pc : usb_kill_anchored_urbs+0x6c/0x1e0
      [    6.922164] lr : usb_kill_anchored_urbs+0x48/0x1e0
      [    6.922181] sp : ffff800080903b60
      [    6.922187] x29: ffff800080903b60
      x28: ffff2c7b85c32b80 x27: ffff2c7bbb370930
      [    6.922211] x26: 00000000000f4240
      x25: 00000000ffffffff x24: ffffd49ece2dcb48
      [    6.922255] x20: ffffffffffffffd8
      x19: 0000000000000000 x18: 0000000000000006
      [    6.922276] x17: 6531656337386238
      x16: 3632373862333863 x15: ffff800080903480
      [    6.922297] x14: 0000000000000000
      x13: 303278302f303178 x12: ffffd49ecf090e30
      [    6.922318] x11: 0000000000000001
      x10: 0000000000000001 x9 : ffffd49ecd2c5bb4
      [    6.922339] x8 : c0000000ffffdfff
      x7 : ffffd49ecefe0db8 x6 : 00000000000affa8
      [    6.922360] x5 : ffff2c7bbb35dd48
      x4 : 0000000000000000 x3 : 0000000000000000
      [    6.922379] x2 : 0000000000000000
      x1 : 0000000000000003 x0 : ffffffffffffffd8
      [    6.922400] Call trace:
      [    6.922405]  usb_kill_anchored_urbs+0x6c/0x1e0
      [    6.922422]  btmtk_usb_suspend+0x20/0x38
      [btmtk 5f200a97badbdfda4266773fee49acfc8e0224d5]
      [    6.922444]  btusb_suspend+0xd0/0x210
      [btusb 0bfbf19a87ff406c83b87268b87ce1e80e9a829b]
      [    6.922469]  usb_suspend_both+0x90/0x288
      [    6.922487]  usb_runtime_suspend+0x3c/0xa8
      [    6.922507]  __rpm_callback+0x50/0x1f0
      [    6.922523]  rpm_callback+0x70/0x88
      [    6.922538]  rpm_suspend+0xe4/0x5a0
      [    6.922553]  pm_runtime_work+0xd4/0xe0
      [    6.922569]  process_one_work+0x18c/0x440
      [    6.922588]  worker_thread+0x314/0x428
      [    6.922606]  kthread+0x128/0x138
      [    6.922621]  ret_from_fork+0x10/0x20
      [    6.922644] Code: f100a274 54000520 d503201f d100a260 (b8370000)
      [    6.922654] ---[ end trace 0000000000000000 ]---
      
      Fixes: ceac1cb0 ("Bluetooth: btusb: mediatek: add ISO data transmission functions")
      Signed-off-by: default avatarChris Lu <chris.lu@mediatek.com>
      Reported-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> #KernelCI
      Tested-by: default avatarNícolas F. R. A. Prado <nfraprado@collabora.com>
      Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
      d09009bc
    • Kiran K's avatar
      Bluetooth: btintel: Fail setup on error · e22a3a9d
      Kiran K authored
      Do not attempt to send any hci command to controller if *setup* function
      fails.
      
      Fixes: af395330 ("Bluetooth: btintel: Add Intel devcoredump support")
      Signed-off-by: default avatarKiran K <kiran.k@intel.com>
      Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
      e22a3a9d
    • Mark Mentovai's avatar
      net: phy: realtek: add support for RTL8366S Gigabit PHY · 225990c4
      Mark Mentovai authored
      The PHY built in to the Realtek RTL8366S switch controller was
      previously supported by genphy_driver. This PHY does not implement MMD
      operations. Since commit 9b01c885 ("net: phy: c22: migrate to
      genphy_c45_write_eee_adv()"), MMD register reads have been made during
      phy_probe to determine EEE support. For genphy_driver, these reads are
      transformed into 802.3 annex 22D clause 45-over-clause 22
      mmd_phy_indirect operations that perform MII register writes to
      MII_MMD_CTRL and MII_MMD_DATA. This overwrites those two MII registers,
      which on this PHY are reserved and have another function, rendering the
      PHY unusable while so configured.
      
      Proper support for this PHY is restored by providing a phy_driver that
      declares MMD operations as unsupported by using the helper functions
      provided for that purpose, while remaining otherwise identical to
      genphy_driver.
      
      Fixes: 9b01c885 ("net: phy: c22: migrate to genphy_c45_write_eee_adv()")
      Reported-by: default avatarRussell Senior <russell@personaltelco.net>
      Closes: https://github.com/openwrt/openwrt/issues/15981
      Link: https://github.com/openwrt/openwrt/issues/15739Signed-off-by: default avatarMark Mentovai <mark@mentovai.com>
      Reviewed-by: default avatarMaxime Chevallier <maxime.chevallier@bootlin.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      225990c4
    • Johan Hovold's avatar
      wifi: ath12k: fix soft lockup on suspend · a47f3320
      Johan Hovold authored
      The ext interrupts are enabled when the firmware has been started, but
      this may never happen, for example, if the board configuration file is
      missing.
      
      When the system is later suspended, the driver unconditionally tries to
      disable interrupts, which results in an irq disable imbalance and causes
      the driver to spin indefinitely in napi_synchronize().
      
      Make sure that the interrupts have been enabled before attempting to
      disable them.
      
      Fixes: d8899132 ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
      Cc: stable@vger.kernel.org	# 6.3
      Signed-off-by: default avatarJohan Hovold <johan+linaro@kernel.org>
      Acked-by: default avatarJeff Johnson <quic_jjohnson@quicinc.com>
      Link: https://patch.msgid.link/20240709073132.9168-1-johan+linaro@kernel.orgSigned-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
      a47f3320
    • Sean Wang's avatar
      wifi: mt76: mt7921: fix null pointer access in mt792x_mac_link_bss_remove · 6557a28f
      Sean Wang authored
      Fix null pointer access in mt792x_mac_link_bss_remove.
      
      To prevent null pointer access, we should assign the vif to bss_conf in
      mt7921_add_interface. This ensures that subsequent operations on the BSS
      can properly reference the correct vif.
      
      [  T843] Call Trace:
      [  T843]  <TASK>
      [  T843]  ? __die+0x1e/0x60
      [  T843]  ? page_fault_oops+0x157/0x450
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? search_bpf_extables+0x5a/0x80
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? exc_page_fault+0x2bb/0x670
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? lock_timer_base+0x71/0x90
      [  T843]  ? asm_exc_page_fault+0x26/0x30
      [  T843]  ? mt792x_mac_link_bss_remove+0x24/0x110 [mt792x_lib]
      [  T843]  ? mt792x_remove_interface+0x6e/0x90 [mt792x_lib]
      [  T843]  ? ieee80211_do_stop+0x507/0x7e0 [mac80211]
      [  T843]  ? ieee80211_stop+0x53/0x190 [mac80211]
      [  T843]  ? __dev_close_many+0xa5/0x120
      [  T843]  ? __dev_change_flags+0x18c/0x220
      [  T843]  ? dev_change_flags+0x21/0x60
      [  T843]  ? do_setlink+0xdf9/0x11d0
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? security_sock_rcv_skb+0x33/0x50
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? __nla_validate_parse+0x61/0xd10
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? genl_done+0x53/0x80
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? netlink_dump+0x357/0x410
      [  T843]  ? __rtnl_newlink+0x5d6/0x980
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? genl_family_rcv_msg_dumpit+0xdf/0xf0
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? __kmalloc_cache_noprof+0x44/0x210
      [  T843]  ? rtnl_newlink+0x42/0x60
      [  T843]  ? rtnetlink_rcv_msg+0x152/0x3f0
      [  T843]  ? mptcp_pm_nl_dump_addr+0x180/0x180
      [  T843]  ? rtnl_calcit.isra.0+0x130/0x130
      [  T843]  ? netlink_rcv_skb+0x56/0x100
      [  T843]  ? netlink_unicast+0x199/0x290
      [  T843]  ? netlink_sendmsg+0x21d/0x490
      [  T843]  ? __sock_sendmsg+0x78/0x80
      [  T843]  ? ____sys_sendmsg+0x23f/0x2e0
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? copy_msghdr_from_user+0x68/0xa0
      [  T843]  ? ___sys_sendmsg+0x81/0xd0
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? crng_fast_key_erasure+0xbc/0xf0
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? get_random_bytes_user+0x126/0x140
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? __fdget+0xb1/0xe0
      [  T843]  ? __sys_sendmsg+0x56/0xa0
      [  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
      [  T843]  ? do_syscall_64+0x5f/0x170
      [  T843]  ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
      [  T843]  </TASK>
      
      Fixes: 1541d63c ("wifi: mt76: mt7925: add mt7925_mac_link_bss_remove to remove per-link BSS")
      Reported-by: default avatarBert Karwatzki <spasswolf@web.de>
      Closes: https://lore.kernel.org/linux-wireless/2fee61f8c903d02a900ca3188c3742c7effd102e.camel@web.de/#bSigned-off-by: default avatarSean Wang <sean.wang@mediatek.com>
      Tested-by: default avatarBert Karwatzki <spasswolf@web.de>
      Link: https://patch.msgid.link/20240718234633.12737-1-sean.wang@kernel.orgSigned-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
      6557a28f
    • Baochen Qiang's avatar
      wifi: ath12k: fix reusing outside iterator in ath12k_wow_vif_set_wakeups() · 189d7aae
      Baochen Qiang authored
      Smatch throws below warning:
      
      	drivers/net/wireless/ath/ath12k/wow.c:434 ath12k_wow_vif_set_wakeups()
      	warn: reusing outside iterator: 'i'
      
      	drivers/net/wireless/ath/ath12k/wow.c
      	    411         default:
      	    412                 break;
      	    413         }
      	    414
      	    415         for (i = 0; i < wowlan->n_patterns; i++) {
      	                            ^^^^^^^^^^^^^^^^^^^^^^
      	Here we loop until ->n_patterns
      
      	    416                 const struct cfg80211_pkt_pattern *eth_pattern = &patterns[i];
      	    417                 struct ath12k_pkt_pattern new_pattern = {};
      	    418
      	    419                 if (WARN_ON(eth_pattern->pattern_len > WOW_MAX_PATTERN_SIZE))
      	    420                         return -EINVAL;
      	    421
      	    422                 if (ar->ab->wow.wmi_conf_rx_decap_mode ==
      	    423                     ATH12K_HW_TXRX_NATIVE_WIFI) {
      	    424                         ath12k_wow_convert_8023_to_80211(ar, eth_pattern,
      	    425                                                          &new_pattern);
      	    426
      	    427                         if (WARN_ON(new_pattern.pattern_len > WOW_MAX_PATTERN_SIZE))
      	    428                                 return -EINVAL;
      	    429                 } else {
      	    430                         memcpy(new_pattern.pattern, eth_pattern->pattern,
      	    431                                eth_pattern->pattern_len);
      	    432
      	    433                         /* convert bitmask to bytemask */
      	--> 434                         for (i = 0; i < eth_pattern->pattern_len; i++)
      	    435                                 if (eth_pattern->mask[i / 8] & BIT(i % 8))
      	    436                                         new_pattern.bytemask[i] = 0xff;
      
      	This loop re-uses i and the loop ends with i == eth_pattern->pattern_len.
      	This looks like a bug.
      
      Change to use a new iterator 'j' for the inner loop to fix it.
      
      Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
      
      Fixes: 4a3c212e ("wifi: ath12k: add basic WoW functionalities")
      Reported-by: default avatarDan Carpenter <dan.carpenter@linaro.org>
      Closes: https://lore.kernel.org/all/d4975b95-9c43-45af-a0ab-80253f18c7f2@stanley.mountain/Signed-off-by: default avatarBaochen Qiang <quic_bqiang@quicinc.com>
      Acked-by: default avatarJeff Johnson <quic_jjohnson@quicinc.com>
      Link: https://patch.msgid.link/20240722033332.6273-1-quic_bqiang@quicinc.comSigned-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
      189d7aae
    • Johannes Berg's avatar
      wifi: cfg80211: correct S1G beacon length calculation · 6873cc44
      Johannes Berg authored
      The minimum header length calculation (equivalent to the start
      of the elements) for the S1G long beacon erroneously required
      only up to the start of u.s1g_beacon rather than the start of
      u.s1g_beacon.variable. Fix that, and also shuffle the branches
      around a bit to not assign useless values that are overwritten
      later.
      
      Reported-by: syzbot+0f3afa93b91202f21939@syzkaller.appspotmail.com
      Fixes: 9eaffe50 ("cfg80211: convert S1G beacon to scan results")
      Link: https://patch.msgid.link/20240724132912.9662972db7c1.I8779675b5bbda4994cc66f876b6b87a2361c3c0b@changeidSigned-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
      6873cc44
    • Veerendranath Jakkam's avatar
      wifi: cfg80211: fix reporting failed MLO links status with cfg80211_connect_done · baeaabf9
      Veerendranath Jakkam authored
      Individual MLO links connection status is not copied to
      EVENT_CONNECT_RESULT data while processing the connect response
      information in cfg80211_connect_done(). Due to this failed links
      are wrongly indicated with success status in EVENT_CONNECT_RESULT.
      
      To fix this, copy the individual MLO links status to the
      EVENT_CONNECT_RESULT data.
      
      Fixes: 53ad07e9 ("wifi: cfg80211: support reporting failed links")
      Signed-off-by: default avatarVeerendranath Jakkam <quic_vjakkam@quicinc.com>
      Reviewed-by: default avatarCarlos Llamas <cmllamas@google.com>
      Link: https://patch.msgid.link/20240724125327.3495874-1-quic_vjakkam@quicinc.com
      [commit message editorial changes]
      Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
      baeaabf9
    • Johannes Berg's avatar
      wifi: mac80211: use monitor sdata with driver only if desired · 8f4fa087
      Johannes Berg authored
      In commit 0d9c2bee ("wifi: mac80211: fix monitor channel
      with chanctx emulation") I changed mac80211 to always have an
      internal monitor_sdata to have something to have the chanctx
      bound to.
      
      However, if the driver didn't also have the WANT_MONITOR flag
      this would cause mac80211 to allocate it without telling the
      driver (which was intentional) but also use it for later APIs
      to the driver without it ever having known about it which was
      _not_ intentional.
      
      Check through the code and only use the monitor_sdata in the
      relevant places (TX, MU-MIMO follow settings, TX power, and
      interface iteration) when the WANT_MONITOR flag is set.
      
      Cc: stable@vger.kernel.org
      Fixes: 0d9c2bee ("wifi: mac80211: fix monitor channel with chanctx emulation")
      Reported-by: default avatarZeroBeat <ZeroBeat@gmx.de>
      Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219086Tested-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
      Link: https://patch.msgid.link/20240725184836.25d334157a8e.I02574086da2c5cf0e18264ce5807db6f14ffd9c0@changeidSigned-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
      8f4fa087