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Re: Please apply to stable: cfg80211: add support for custom firmware regulatory solutions

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On Thu, Mar 5, 2009 at 2:49 PM, Tim Gardner <tim.gardner@xxxxxxxxxxxxx> wrote:
> Luis R. Rodriguez wrote:
>> On Thu, Mar 5, 2009 at 9:54 AM, reinette chatre
>> <reinette.chatre@xxxxxxxxx> wrote:
>>> On Wed, 2009-03-04 at 13:35 -0800, Luis R. Rodriguez wrote:
>>>> Forgot to Cc: stable@xxxxxxxxxx for this patch during its submission,
>>>> this is needed on 2.6.28 as otherwise there is an issue for Intel
>>>> cards which get their channels 5 GHz disabled if OLD_REG is set to no
>>>> (this is not the default) or the channels 12-14 are disabled if
>>>> OLD_REG is set to yes (default) set to no and the ieee80211_module
>>>> parameter is not used. The later issue is resolved by userspace as
>>>> well but we cannot yet expect 2.6.28 kernels to have enough userspace
>>>> interfaces to set the regulatory domain just yet. This is why OLD_REG
>>>> is still set to default with 2.6.28.
>>>>
>>>> 14b9815af3f4fe0e171ee0c4325c31d2a2c1570b
>>>> Author: Luis R. Rodriguez <lrodriguez@xxxxxxxxxxx>
>>>> Date:   Wed Nov 12 14:22:03 2008 -0800
>>>>
>>>>    cfg80211: add support for custom firmware regulatory solutions
>>>>
>>>>    This adds API to cfg80211 to allow wireless drivers to inform
>>>>    us if their firmware can handle regulatory considerations *and*
>>>>    they cannot map these regulatory domains to an ISO / IEC 3166
>>>>    alpha2. In these cases we skip the first regulatory hint instead
>>>>    of expecting the driver to build their own regulatory structure,
>>>>    providing us with an alpha2, or using the reg_notifier().
>>>>
>>>>    Signed-off-by: Luis R. Rodriguez <lrodriguez@xxxxxxxxxxx>
>>>>    Acked-by: Zhu Yi <yi.zhu@xxxxxxxxx>
>>>>    Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
>>> Could you please also add commit
>>> ea4a82dceec7b5782b1259079c8de508d0afe33a? This is the commit that
>>> enables the Intel cards to take advantage of the parameter introduced in
>>> previous commit.
>>>
>>> commit ea4a82dceec7b5782b1259079c8de508d0afe33a
>>> Author: Luis R. Rodriguez <lrodriguez@xxxxxxxxxxx>
>>> Date:   Wed Nov 12 14:22:04 2008 -0800
>>>
>>>    iwlwifi: enable custom fw regulatory solution
>>>
>>>    This enables the custom firmware regulatory solution option
>>>    on iwlwifi drivers. These devices are uncapable of mapping their
>>>    EEPROM regulatory domain to a specific ISO / IEC alpha2.
>>>    Although the new 11n devices (>= iwl 5000) have only
>>>    3 regultaory SKUs -- MOW, ABG (no N) and BG -- the older
>>>    devices (3945 and 4965) have a more complex SKU arrangement
>>>    and therefore its not practical to move this to the driver.
>>>
>>>    Signed-off-by: Luis R. Rodriguez <lrodriguez@xxxxxxxxxxx>
>>>    Acked-by: Zhu Yi <yi.zhu@xxxxxxxxx>
>>>    Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
>>
>> Doh yes that would be required or it would make this pointless.
>>
>>   Luis
>>
>
> Looks like it requires a preparatory commit:
>
> commit f3b407fba52e1b86ca286ee7c218a4fb00bd29e0
> Author: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
> Date:   Tue Oct 21 09:57:41 2008 +0200
>
>    wireless: remove cfg80211_reg_mutex
>
>    This mutex is wrong, we use cfg80211_drv_mutex (which should
>    possibly be renamed to just cfg80211_mutex) everywhere except
>    in one place, fix that and get rid of the extra mutex.
>
>    Also get rid of a spurious regulatory_requests list definition.
>
>    Signed-off-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
>    Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>

Ah crap. This may be too much for stable. Did you get a hang without
it? Or is it not applying cleanly? If the later then a port may be
required.

  Luis
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