linux-kernel - Re: [-mm3 patch]Warning fix: check the return value of kobject

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Message-ID: <20070411062349.GA5843@mail.ustc.edu.cn>
Date:	Wed, 11 Apr 2007 14:23:49 +0800
From:	Fengguang Wu <fengguang.wu@...il.com>
To:	Cong WANG <xiyou.wangcong@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, viro@...iv.linux.org.uk
Subject: Re: [-mm3 patch]Warning fix: check the return value of kobject_add etc.

On Sun, Apr 01, 2007 at 02:20:46PM +0800, Cong WANG wrote:
> 2007/4/1, Andrew Morton <akpm@...ux-foundation.org>:
> >
> >Also, please always prepare patches in `patch -p1' form, as per
> >http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt, thanks.
> >
> >
> 
> Sorry. I am confused with this. Does that mean I should make patches
> _upon_ the root kernel source directory or first make a copy of the
> original source code and then diff against the two dirs? But I was
> told that "patches should be based _in_ the root kernel source
> directory" and when only one file was modified just to diff it with
> the original single file. (See Documentation/SubmittingPatches.)
> 
> Can you help out? And should I remake this patch? Thanks again!

quilt(http://savannah.nongnu.org/projects/quilt) is your friend.

cd /usr/src/linux
quilt new my-fix.patch
quilt edit mm/readahead.c
quilt refresh --diffstat
quilt diff
...
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