1. 08 Dec, 2022 3 commits
  2. 03 Dec, 2022 3 commits
    • Lorenzo Bianconi's avatar
      net: ethernet: mtk_wed: fix sleep while atomic in mtk_wed_wo_queue_refill · 65e6af6c
      Lorenzo Bianconi authored
      In order to fix the following sleep while atomic bug always alloc pages
      with GFP_ATOMIC in mtk_wed_wo_queue_refill since page_frag_alloc runs in
      spin_lock critical section.
      
      [    9.049719] Hardware name: MediaTek MT7986a RFB (DT)
      [    9.054665] Call trace:
      [    9.057096]  dump_backtrace+0x0/0x154
      [    9.060751]  show_stack+0x14/0x1c
      [    9.064052]  dump_stack_lvl+0x64/0x7c
      [    9.067702]  dump_stack+0x14/0x2c
      [    9.071001]  ___might_sleep+0xec/0x120
      [    9.074736]  __might_sleep+0x4c/0x9c
      [    9.078296]  __alloc_pages+0x184/0x2e4
      [    9.082030]  page_frag_alloc_align+0x98/0x1ac
      [    9.086369]  mtk_wed_wo_queue_refill+0x134/0x234
      [    9.090974]  mtk_wed_wo_init+0x174/0x2c0
      [    9.094881]  mtk_wed_attach+0x7c8/0x7e0
      [    9.098701]  mt7915_mmio_wed_init+0x1f0/0x3a0 [mt7915e]
      [    9.103940]  mt7915_pci_probe+0xec/0x3bc [mt7915e]
      [    9.108727]  pci_device_probe+0xac/0x13c
      [    9.112638]  really_probe.part.0+0x98/0x2f4
      [    9.116807]  __driver_probe_device+0x94/0x13c
      [    9.121147]  driver_probe_device+0x40/0x114
      [    9.125314]  __driver_attach+0x7c/0x180
      [    9.129133]  bus_for_each_dev+0x5c/0x90
      [    9.132953]  driver_attach+0x20/0x2c
      [    9.136513]  bus_add_driver+0x104/0x1fc
      [    9.140333]  driver_register+0x74/0x120
      [    9.144153]  __pci_register_driver+0x40/0x50
      [    9.148407]  mt7915_init+0x5c/0x1000 [mt7915e]
      [    9.152848]  do_one_initcall+0x40/0x25c
      [    9.156669]  do_init_module+0x44/0x230
      [    9.160403]  load_module+0x1f30/0x2750
      [    9.164135]  __do_sys_init_module+0x150/0x200
      [    9.168475]  __arm64_sys_init_module+0x18/0x20
      [    9.172901]  invoke_syscall.constprop.0+0x4c/0xe0
      [    9.177589]  do_el0_svc+0x48/0xe0
      [    9.180889]  el0_svc+0x14/0x50
      [    9.183929]  el0t_64_sync_handler+0x9c/0x120
      [    9.188183]  el0t_64_sync+0x158/0x15c
      
      Fixes: 79968444 ("net: ethernet: mtk_wed: introduce wed wo support")
      Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
      Reviewed-by: default avatarPavan Chebbi <pavan.chebbi@broadcom.com>
      Link: https://lore.kernel.org/r/67ca94bdd3d9eaeb86e52b3050fbca0bcf7bb02f.1669908312.git.lorenzo@kernel.orgSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      65e6af6c
    • Eric Dumazet's avatar
      tcp: use 2-arg optimal variant of kfree_rcu() · 55fb80d5
      Eric Dumazet authored
      kfree_rcu(1-arg) should be avoided as much as possible,
      since this is only possible from sleepable contexts,
      and incurr extra rcu barriers.
      
      I wish the 1-arg variant of kfree_rcu() would
      get a distinct name, like kfree_rcu_slow()
      to avoid it being abused.
      
      Fixes: 459837b5 ("net/tcp: Disable TCP-MD5 static key on tcp_md5sig_info destruction")
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Cc: Paul E. McKenney <paulmck@kernel.org>
      Reviewed-by: default avatarPavan Chebbi <pavan.chebbi@broadcom.com>
      Reviewed-by: default avatarDmitry Safonov <dima@arista.com>
      Link: https://lore.kernel.org/r/20221202052847.2623997-1-edumazet@google.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      55fb80d5
    • Jakub Kicinski's avatar
      Merge tag 'wireless-next-2022-12-02' of... · edd4e25a
      Jakub Kicinski authored
      Merge tag 'wireless-next-2022-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
      
      Kalle Valo says:
      
      ====================
      wireless-next patches for v6.2
      
      Third set of patches for v6.2. mt76 has a new driver for mt7996 Wi-Fi 7
      devices and iwlwifi also got initial Wi-Fi 7 support. Otherwise
      smaller features and fixes.
      
      Major changes:
      
      ath10k
       - store WLAN firmware version in SMEM image table
      
      mt76
       - mt7996: new driver for MediaTek Wi-Fi 7 (802.11be) devices
       - mt7986, mt7915: enable Wireless Ethernet Dispatch (WED) offload support
       - mt7915: add ack signal support
       - mt7915: enable coredump support
       - mt7921: remain_on_channel support
       - mt7921: channel context support
      
      iwlwifi
       - enable Wi-Fi 7 Extremely High Throughput (EHT) PHY capabilities
       - 320 MHz channels support
      
      * tag 'wireless-next-2022-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (144 commits)
        wifi: ath10k: fix QCOM_SMEM dependency
        wifi: mt76: mt7921e: add pci .shutdown() support
        wifi: mt76: mt7915: mmio: fix naming convention
        wifi: mt76: mt7996: add support to configure spatial reuse parameter set
        wifi: mt76: mt7996: enable ack signal support
        wifi: mt76: mt7996: enable use_cts_prot support
        wifi: mt76: mt7915: rely on band_idx of mt76_phy
        wifi: mt76: mt7915: enable per bandwidth power limit support
        wifi: mt76: mt7915: introduce mt7915_get_power_bound()
        mt76: mt7915: Fix PCI device refcount leak in mt7915_pci_init_hif2()
        wifi: mt76: do not send firmware FW_FEATURE_NON_DL region
        wifi: mt76: mt7921: Add missing __packed annotation of struct mt7921_clc
        wifi: mt76: fix coverity overrun-call in mt76_get_txpower()
        wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices
        wifi: mt76: mt76x0: remove dead code in mt76x0_phy_get_target_power
        wifi: mt76: mt7915: fix band_idx usage
        wifi: mt76: mt7915: enable .sta_set_txpwr support
        wifi: mt76: mt7915: add basedband Txpower info into debugfs
        wifi: mt76: mt7915: add support to configure spatial reuse parameter set
        wifi: mt76: mt7915: add missing MODULE_PARM_DESC
        ...
      ====================
      
      Link: https://lore.kernel.org/r/20221202214254.D0D3DC433C1@smtp.kernel.orgSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      edd4e25a
  3. 02 Dec, 2022 33 commits
  4. 01 Dec, 2022 1 commit
    • Jakub Kicinski's avatar
      Merge branch 'remove-label-cpu-from-dsa-dt-binding' · 5620768a
      Jakub Kicinski authored
      Arınç ÜNAL says:
      
      ====================
      remove label = "cpu" from DSA dt-binding
      
      With this patch series, we're completely getting rid of 'label = "cpu";'
      which is not used by the DSA dt-binding at all.
      
      Information for taking the patches for maintainers:
      Patch 1: netdev maintainers (based off netdev/net-next.git main)
      Patch 2-3: SoC maintainers (based off soc/soc.git soc/dt)
      Patch 4: MIPS maintainers (based off mips/linux.git mips-next)
      Patch 5: PowerPC maintainers (based off powerpc/linux.git next-test)
      
      I've been meaning to submit this for a few months. Find the relevant
      conversation here:
      https://lore.kernel.org/netdev/20220913155408.GA3802998-robh@kernel.org/
      
      Here's how I did it, for the interested (or suggestions):
      
      Find the platforms which have got 'label = "cpu";' defined.
      grep -rnw . -e 'label = "cpu";'
      
      Remove the line where 'label = "cpu";' is included.
      sed -i /'label = "cpu";'/,+d arch/arm/boot/dts/*
      sed -i /'label = "cpu";'/,+d arch/arm64/boot/dts/freescale/*
      sed -i /'label = "cpu";'/,+d arch/arm64/boot/dts/marvell/*
      sed -i /'label = "cpu";'/,+d arch/arm64/boot/dts/mediatek/*
      sed -i /'label = "cpu";'/,+d arch/arm64/boot/dts/rockchip/*
      sed -i /'label = "cpu";'/,+d arch/mips/boot/dts/qca/*
      sed -i /'label = "cpu";'/,+d arch/mips/boot/dts/ralink/*
      sed -i /'label = "cpu";'/,+d arch/powerpc/boot/dts/turris1x.dts
      sed -i /'label = "cpu";'/,+d Documentation/devicetree/bindings/net/qca,ar71xx.yaml
      
      Restore the symlink files which typechange after running sed.
      ====================
      
      Link: https://lore.kernel.org/r/20221130141040.32447-1-arinc.unal@arinc9.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      5620768a