linux-kernel - Re: [PATCH] x86_64: some whitespace cleanups in paging code

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Message-ID: <20071205145137.GA26700@elte.hu>
Date:	Wed, 5 Dec 2007 15:51:37 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Joerg Roedel <joerg.roedel@....com>
Cc:	tglx@...utronix.de, hpa@...or.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86_64: some whitespace cleanups in paging code


* Joerg Roedel <joerg.roedel@....com> wrote:

> This patch does some whitespace cleanups in the paging code to fix 
> some checkpatch.pl warnings of my formerly merged cleanup patches.

thanks, applied.

btw., if there's any file you are particularly interested in cleaning up 
as a whole, you can use the --file option:

  scripts/checkpatch.pl --file include/asm-x86/pgtable_64.h

there's no hard policy on whether cleanups should be done 
pre-unification or post-unification. I've been using the following 
pretty sensible 3-step path when doing manual unifications:

- clean up the _32 and _64 file first (this is also easy to check - the 
  resulting .o or vmlinux must not differ with/without the patch)

- remove artificial differences (in a separate patch)

- do the unification (in a third patch)

the general rule, more patches are better than fewer patches. Most of 
our testing/bisetion infrastructure is per-patch/per-commit, so if some 
mistake happens (and mistakes happen all the time), the finer grained 
approach is always easier to sort out.

	Ingo
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