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Date: Mon, 27 Jun 2016 09:22:35 +0200
From: Mirco Tischler <mt-ml@gmx.de>
To: kvalo@qca.qualcomm.com
Cc: linux-wireless@vger.kernel.org, ath9k-devel@qca.qualcomm.com,
	miaoqing pan <miaoqing@codeaurora.org>
Subject: Re: ath9k: fix GPIO mask for AR9462 and AR9565
Message-ID: <20160627072235.GB31166@frangipani> (sfid-20160627_092242_353793_FFB73A94)
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Kalle Valo <kva..@qca.qualcomm.com> wrote:
>miaoqing pan <miaoq...@codeaurora.org> wrote:
>> From: Miaoqing Pan <miaoq...@codeaurora.org>
>> 
>> The incorrect GPIO mask cause kernel warning, when AR9462 access GPIO11.
>> Also fix the mask for AR9565.
>> 
>> WARNING: CPU: 1 PID: 199 at ../drivers/net/wireless/ath/ath9k/hw.c:2778 
>> ath9k_hw_gpio_get+0x1a9/0x1b0 [ath9k_hw]
>> CPU: 1 PID: 199 Comm: kworker/u16:9 Not tainted 4.7.0-rc1-next-20160530+ #5
>> Hardware name: Acer TravelMate P243/BA40_HC, BIOS V1.01 04/20/2012
>> Workqueue: events_power_efficient rfkill_poll
>>  0000000000000000 ffff88002cf73d28 ffffffff813b8ddc 0000000000000000
>>  0000000000000000 ffff88002cf73d68 ffffffff8107a331 00000ada00000086
>>  ffff880148d9c018 000000000000000b ffff880147e68720 0000000000000200
>> Call Trace:
>>  [<ffffffff813b8ddc>] dump_stack+0x63/0x87
>>  [<ffffffff8107a331>] __warn+0xd1/0xf0
>>  [<ffffffff8107a41d>] warn_slowpath_null+0x1d/0x20
>>  [<ffffffffc0775b19>] ath9k_hw_gpio_get+0x1a9/0x1b0 [ath9k_hw]
>>  [<ffffffffc047f3e4>] ath9k_rfkill_poll_state+0x34/0x60 [ath9k]
>>  [<ffffffffc06dbb53>] ieee80211_rfkill_poll+0x33/0x40 [mac80211]
>>  [<ffffffffc03ad65a>] cfg80211_rfkill_poll+0x2a/0xc0 [cfg80211]
>>  [<ffffffff817c5514>] rfkill_poll+0x24/0x50
>>  [<ffffffff81093183>] process_one_work+0x153/0x3f0
>>  [<ffffffff8109393b>] worker_thread+0x12b/0x4b0
>>  [<ffffffff81093810>] ? rescuer_thread+0x340/0x340
>>  [<ffffffff81099129>] kthread+0xc9/0xe0
>>  [<ffffffff817d8f1f>] ret_from_fork+0x1f/0x40
>>  [<ffffffff81099060>] ? kthread_park+0x60/0x60
>> 
>> Signed-off-by: Miaoqing Pan <miaoq...@codeaurora.org>
>
>
>Thanks, 1 patch applied to ath-current branch of ath.git:
>
>e024111f6946 ath9k: fix GPIO mask for AR9462 and AR9565
>
Hello Kalle,
I see this warning in 4.7-rc4. Could the fix please go into 4.7? if I understand correctly
it is only queued for 4.8?

Btw. I applied the patch and it does fix the problem :)

Thank you,
Mirco