linux-kernel - [Oops 1/2]Something wrong with copy_from

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Message-ID: <20110430061336.GA4274@gmail.com>
Date:	Sat, 30 Apr 2011 14:13:39 +0800
From:	Harry Wei <jiaweiwei.xiyou@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, greg@...ah.com, joe@...ches.com,
	randy.dunlap@...cle.com, trivial@...nel.org
Subject: [Oops 1/2]Something wrong with copy_from_user() function

Hi us,
	When i was compiling 2.6.38.2 kernel. Something wrong happend to me.
It shows like following.

[...]
Warning: call to 'copy_from_user_overflow' declared with attribute warning:
copy_from_user buffer size is not provably correct.
[...]

See http://s1202.photobucket.com/albums/bb364/harrywei/Kernel/?action=view&current=report_bug.png for details.
	I tried to fix this warning, but i don't know how to deal with
it. Can anyone help me.

Thanks.
Harry Wei.
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