Re: [-mm3 patch]Warning fix: check the return value of kobject_add etc.

[Fengguang Wu]

On Sun, Apr 01, 2007 at 02:20:46PM +0800, Cong WANG wrote:
> 2007/4/1, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>:
> >
> >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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