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    SubjectRe: [2.6.31-rc1] iwlagn (4965): regression when hardware rf switch is used
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    Now that I took a closer look...

    > I've tried .31-rc1 on my HP 2510p notebook and noticed a problem when
    > using the hardware rf kill switch.


    > But with 2.6.31 I get this:
    > [disable]
    > wlan0: deauthenticating by local choice (reason=3)
    > iwlagn 0000:10:00.0: Error sending REPLY_ADD_STA: enqueue_hcmd failed: -5
    > mac80211-phy0: failed to remove key (0, 00:14:c1:38:e5:15) from hardware (-5)
    > iwlagn 0000:10:00.0: Error sending REPLY_ADD_STA: enqueue_hcmd failed: -5
    > mac80211-phy0: failed to remove key (1, ff:ff:ff:ff:ff:ff) from hardware (-5)
    > usb 3-1: USB disconnect, address 2

    These errors are a driver problem.

    > [enable]
    > usb 3-1: new full speed USB device using uhci_hcd and address 3
    > usb 3-1: configuration #1 chosen from 1 choice

    That is completely unrelated. You plugged in a USB device too :)

    > A lot uglier with those errors. And after that I have to run ifdown/ifup
    > before networking is up again (ifup only does not work as it will complain
    > "interface already configured"):

    And that's actually expected, and/or a bug in the debian networking
    scripts.
    (You can trigger the same problem by doing
    ifup wlan0
    ip link set wlan0 down
    ifup wlan0 -> error)

    To get your network connection back automatically we will require
    changes to userland tools to listen to rfkill events.

    > BTW, would it make sense to bring back the first two lines shown with .30
    > (or at least the first one):
    > iwlagn 0000:10:00.0: Radio Frequency Kill Switch is On:
    > Kill switch must be turned off for wireless networking to work.
    > IMHO it's good to register the reason for the disconnect.

    I guess something like that could be added to cfg80211:
    phy0: taking interfaces down due to rfkill

    johannes
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