From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH] Do not use cpu_to_node() to find an offlined cpu's node.
Date: Wed, 10 Oct 2012 12:07:00 +0200
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To: Wen Congyang <wency@cn.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>, Tang Chen <tangchen@cn.fujitsu.com>, mingo@redhat.com, miaox@cn.fujitsu.com, linux-kernel@vger.kernel.org, linux-numa@vger.kernel.org

On Wed, 2012-10-10 at 18:10 +0800, Wen Congyang wrote:
> I use ./scripts/get_maintainer.pl, and it doesn't tell me that I should cc
> you when I post that patch. 

That script doesn't look at all usage sites of the code you modify does
it?

You need to audit the entire tree for usage of the interfaces you change
and email all relevant people for whoem you're planning to break stuff
-- preferably with a proposed fix.

That's manual work, no script will ever do this for you.