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  1. 25 Oct, 2014 8 commits
  2. 08 Jul, 2014 13 commits
  3. 23 Jun, 2014 1 commit
  4. 26 Apr, 2014 13 commits
  5. 15 Apr, 2014 2 commits
  6. 07 Apr, 2014 1 commit
  7. 31 Mar, 2014 1 commit
    • Alexander Aring's avatar
      at86rf230: mask irq's before deregister device · 17e84a92
      Alexander Aring authored
      While transmit over a at86rf231 device and unloading the module I got:
      
      [   29.643073] WARNING: CPU: 0 PID: 3 at kernel/workqueue.c:1335 __queue_work+0xb4/0x224()
      [   29.651457] Modules linked in: at86rf230(-) autofs4
      [   29.656612] CPU: 0 PID: 3 Comm: ksoftirqd/0 Tainted: G        W    3.14.0-rc6-01602-g902659e-dirty #294
      [   29.666490] [<c00124f0>] (unwind_backtrace) from [<c0010ad0>] (show_stack+0x10/0x14)
      [   29.674628] [<c0010ad0>] (show_stack) from [<c0032c80>] (warn_slowpath_common+0x60/0x80)
      [   29.683116] [<c0032c80>] (warn_slowpath_common) from [<c0032d30>] (warn_slowpath_null+0x18/0x20)
      [   29.692329] [<c0032d30>] (warn_slowpath_null) from [<c0045b08>] (__queue_work+0xb4/0x224)
      [   29.700906] [<c0045b08>] (__queue_work) from [<c0045cc8>] (queue_work_on+0x50/0x78)
      [   29.708944] [<c0045cc8>] (queue_work_on) from [<c05669cc>] (mac802154_tx+0x1e4/0x240)
      [   29.717164] [<c05669cc>] (mac802154_tx) from [<c0471814>] (dev_hard_start_xmit+0x2f0/0x43c)
      [   29.725926] [<c0471814>] (dev_hard_start_xmit) from [<c04878d0>] (sch_direct_xmit+0x64/0x2a0)
      [   29.734867] [<c04878d0>] (sch_direct_xmit) from [<c0487c38>] (__qdisc_run+0x12c/0x18c)
      [   29.743169] [<c0487c38>] (__qdisc_run) from [<c046e1b0>] (net_tx_action+0xe0/0x178)
      [   29.751205] [<c046e1b0>] (net_tx_action) from [<c0036690>] (__do_softirq+0x100/0x264)
      [   29.759420] [<c0036690>] (__do_softirq) from [<c0036818>] (run_ksoftirqd+0x24/0x4c)
      [   29.767453] [<c0036818>] (run_ksoftirqd) from [<c005232c>] (smpboot_thread_fn+0x128/0x13c)
      [   29.776121] [<c005232c>] (smpboot_thread_fn) from [<c004c3fc>] (kthread+0xd0/0xe4)
      [   29.784061] [<c004c3fc>] (kthread) from [<c000da88>] (ret_from_fork+0x14/0x2c)
      [   29.791628] ---[ end trace 3406ff24bd973834 ]---
      
      The problem is there are still interrupts after deregister ieee802154
      device. This patch mask all interrupts in the at86rf2xx chips before
      deregister the device.
      Signed-off-by: default avatarAlexander Aring <alex.aring@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      17e84a92
  8. 17 Mar, 2014 1 commit