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Re: [PATCH 13/17] iwlwifi: mvm: Convert timers to use timer_setup()

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On Mon, Nov 6, 2017 at 11:48 AM, Luca Coelho <luca@xxxxxxxxx> wrote:
> On Mon, 2017-11-06 at 11:45 -0800, Kees Cook wrote:
>> On Sun, Oct 29, 2017 at 5:28 AM, Luca Coelho <luca@xxxxxxxxx> wrote:
>> > From: Kees Cook <keescook@xxxxxxxxxxxx>
>> >
>> > In preparation for unconditionally passing the struct timer_list
>> > pointer to
>> > all timer callbacks, switch to using the new timer_setup() and
>> > from_timer()
>> > to pass the timer pointer explicitly.
>> >
>> > The RCU lifetime on baid_data is unclear, so this adds a direct
>> > copy of the
>> > rcu_ptr passed to the original callback. It may be possible to
>> > improve this
>> > to just use baid_data->mvm->baid_map[baid_data->baid] instead.
>> >
>> > Cc: Johannes Berg <johannes.berg@xxxxxxxxx>
>> > Cc: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
>> > Cc: Luca Coelho <luciano.coelho@xxxxxxxxx>
>> > Cc: Intel Linux Wireless <linuxwifi@xxxxxxxxx>
>> > Cc: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
>> > Cc: Sara Sharon <sara.sharon@xxxxxxxxx>
>> > Cc: linux-wireless@xxxxxxxxxxxxxxx
>> > Cc: netdev@xxxxxxxxxxxxxxx
>> > Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
>> > Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
>> > ---
>> >  drivers/net/wireless/intel/iwlwifi/mvm/mvm.h  |  3 ++-
>> >  drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c |  4 ++--
>> >  drivers/net/wireless/intel/iwlwifi/mvm/sta.c  | 18 +++++++++----
>> > -----
>> >  3 files changed, 13 insertions(+), 12 deletions(-)
>>
>> Hi,
>>
>> Thanks for taking this! I had a question on timing: is this expected
>> to land for 4.15? If not, I would like to take this via the timers
>> tree, since it is one of the few remaining conversions.
>
> Hi Kees,
>
> Yes, this should land for 4.15.  Kalle just pulled my pull-request
> (which includes this) to wireless-drivers-next.  He told me he'll send
> a pull-request for 4.15 during this week and hopefully Dave will pull
> from him too.
>
> I'll let you know if something doesn't go as planned.

Awesome, thanks very much!

-Kees

-- 
Kees Cook
Pixel Security



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