From: Kalle Valo <kvalo@codeaurora.org>
To: Cong Wang <xiyou.wangcong@gmail.com>
Cc: netdev@vger.kernel.org, pavel@ucw.cz,
linux-wireless@vger.kernel.org,
Cong Wang <xiyou.wangcong@gmail.com>
Subject: Re: [net] wl1251: add a missing spin_lock_init()
Date: Thu, 27 Jul 2017 10:59:59 +0000 (UTC) [thread overview]
Message-ID: <20170727105959.4B7B0607A3@smtp.codeaurora.org> (raw)
In-Reply-To: <1499378437-4971-1-git-send-email-xiyou.wangcong@gmail.com>
Cong Wang <xiyou.wangcong@gmail.com> wrote:
> This fixes the following kernel warning:
>
> [ 5668.771453] BUG: spinlock bad magic on CPU#0, kworker/u2:3/9745
> [ 5668.771850] lock: 0xce63ef20, .magic: 00000000, .owner: <none>/-1,
> .owner_cpu: 0
> [ 5668.772277] CPU: 0 PID: 9745 Comm: kworker/u2:3 Tainted: G W
> 4.12.0-03002-gec979a4-dirty #40
> [ 5668.772796] Hardware name: Nokia RX-51 board
> [ 5668.773071] Workqueue: phy1 wl1251_irq_work
> [ 5668.773345] [<c010c9e4>] (unwind_backtrace) from [<c010a274>]
> (show_stack+0x10/0x14)
> [ 5668.773803] [<c010a274>] (show_stack) from [<c01545a4>]
> (do_raw_spin_lock+0x6c/0xa0)
> [ 5668.774230] [<c01545a4>] (do_raw_spin_lock) from [<c06ca578>]
> (_raw_spin_lock_irqsave+0x10/0x18)
> [ 5668.774658] [<c06ca578>] (_raw_spin_lock_irqsave) from [<c048c010>]
> (wl1251_op_tx+0x38/0x5c)
> [ 5668.775115] [<c048c010>] (wl1251_op_tx) from [<c06a12e8>]
> (ieee80211_tx_frags+0x188/0x1c0)
> [ 5668.775543] [<c06a12e8>] (ieee80211_tx_frags) from [<c06a138c>]
> (__ieee80211_tx+0x6c/0x130)
> [ 5668.775970] [<c06a138c>] (__ieee80211_tx) from [<c06a3dbc>]
> (ieee80211_tx+0xdc/0x104)
> [ 5668.776367] [<c06a3dbc>] (ieee80211_tx) from [<c06a4af0>]
> (__ieee80211_subif_start_xmit+0x454/0x8c8)
> [ 5668.776824] [<c06a4af0>] (__ieee80211_subif_start_xmit) from
> [<c06a4f94>] (ieee80211_subif_start_xmit+0x30/0x2fc)
> [ 5668.777343] [<c06a4f94>] (ieee80211_subif_start_xmit) from
> [<c0578848>] (dev_hard_start_xmit+0x80/0x118)
> ...
>
> by adding the missing spin_lock_init().
>
> Reported-by: Pavel Machek <pavel@ucw.cz>
> Cc: Kalle Valo <kvalo@codeaurora.org>
> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
> Acked-by: Pavel Machek <pavel@ucw.cz>
Patch applied to wireless-drivers-next.git, thanks.
6e9aae179f29 wl1251: add a missing spin_lock_init()
--
https://patchwork.kernel.org/patch/9829083/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
prev parent reply other threads:[~2017-07-27 10:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-06 22:00 [Patch net] wl1251: add a missing spin_lock_init() Cong Wang
2017-07-07 16:59 ` Pavel Machek
2017-07-07 16:59 ` Pavel Machek
2017-07-21 7:54 ` Pavel Machek
2017-07-21 8:00 ` Kalle Valo
2017-07-27 10:59 ` Kalle Valo [this message]
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