linux-kernel - Re: [PATCH v2] isdnloop: fix and simplify isdnloop

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Message-Id: <20120803.015126.198679260163049459.davem@davemloft.net>
Date:	Fri, 03 Aug 2012 01:51:26 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	fengguang.wu@...el.com
Cc:	netdev@...r.kernel.org, dan.carpenter@...cle.com,
	gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
	joe@...ches.com, isdn@...ux-pingi.de, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] isdnloop: fix and simplify isdnloop_init()

From: Fengguang Wu <fengguang.wu@...el.com>
Date: Fri, 3 Aug 2012 15:32:40 +0800

> On Thu, Aug 02, 2012 at 04:21:56PM -0700, David Miller wrote:
>> From: Fengguang Wu <fengguang.wu@...el.com>
>> Date: Thu, 2 Aug 2012 19:05:43 +0800
>> 
>> > Fix a buffer overflow bug by removing the revision transform code.
>> > 
>> > [   22.016214] isdnloop-ISDN-driver Rev 1.11.6.7 
>> > [   22.097508] isdnloop: (loop0) virtual card added
>> > [   22.174400] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffff83244972
>> > [   22.174400] 
>> > [   22.436157] Pid: 1, comm: swapper Not tainted 3.5.0-bisect-00018-gfa8bbb1-dirty #129
>> > [   22.624071] Call Trace:
>> > [   22.720558]  [<ffffffff832448c3>] ? CallcNew+0x56/0x56
>> > [   22.815248]  [<ffffffff8222b623>] panic+0x110/0x329
>> > [   22.914330]  [<ffffffff83244972>] ? isdnloop_init+0xaf/0xb1
>> > [   23.014800]  [<ffffffff832448c3>] ? CallcNew+0x56/0x56
>> > [   23.090763]  [<ffffffff8108e24b>] __stack_chk_fail+0x2b/0x30
>> > [   23.185748]  [<ffffffff83244972>] isdnloop_init+0xaf/0xb1
>> > 
>> > Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
>> 
>> The reason the "$Revision ..." prefix is there is so that automated
>> version control tools will change the string automatically when code
>> is committed in CVS.
>> 
>> In the GIT era this revision style is obsolete.
>> 
>> Therefore you might as well just delete this crap altogether.
> 
> OK. The below updated version will simply print the hard coded
> revision number as it's unlikely to change any more.

This is worse, I said delete this crap altogether.
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