linux-kernel - RE: [sysfs_write_file] net/wireless/reg.c:144 suspicious rcu_dereference

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Message-ID: <1DC40B07CD6EC041A66726C271A73AE61960E1A7@IRSMSX102.ger.corp.intel.com>
Date:	Tue, 15 Jan 2013 08:31:16 +0000
From:	"Berg, Johannes" <johannes.berg@...el.com>
To:	"Wu, Fengguang" <fengguang.wu@...el.com>
CC:	LKML <linux-kernel@...r.kernel.org>
Subject: RE: [sysfs_write_file] net/wireless/reg.c:144 suspicious
 rcu_dereference_protected() usage!

> commit c492db370c17c428a0a58d3673294d4e99634b7d
> Author: Johannes Berg <johannes.berg@...el.com>
> Date:   Thu Dec 6 16:29:25 2012 +0100
> 
>     regulatory: use RCU to protect last_request
> 
>     This will allow making freq_reg_info() lock-free.
> 
>     Acked-by: Luis R. Rodriguez <mcgrof@...not-panic.com>
>     Signed-off-by: Johannes Berg <johannes.berg@...el.com>
> 
> [   38.437215]
> [   38.437457] ===============================
> [   38.438047] [ INFO: suspicious RCU usage. ]
> [   38.438635] 3.8.0-rc1-00184-gfb97c3e #24 Not tainted

Yep, thanks. Already fixed by 4a484cffc5e1836114e9556f7c704412d491200c, I believe.

johannes
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