linux-kernel - Re: [PATCH -tip] x86: unification of module.c

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Date:	Sun, 29 Mar 2009 20:17:31 +0530
From:	Jaswinder Singh Rajput <jaswinder@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	x86 maintainers <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH -tip] x86: unification of module.c

On Thu, 2009-03-26 at 23:34 +0100, Ingo Molnar wrote:
> * Thomas Gleixner <tglx@...utronix.de> wrote:
> 
> > On Thu, 26 Mar 2009, Jaswinder Singh Rajput wrote:
> > > This patch is based on -tip:x86/core:
> > > 
> > > From: Jaswinder Singh Rajput <jaswinderrajput@...il.com>
> > > Date: Thu, 26 Mar 2009 18:33:45 +0530
> > > Subject: [PATCH] x86: unification of module.c
> > > 
> > > Impact: Unification, cleanup
> > > 
> > > Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@...il.com>
> > > ---
> > >  arch/x86/kernel/Makefile    |    2 +-
> > >  arch/x86/kernel/module.c    |  261 +++++++++++++++++++++++++++++++++++++++++++
> > >  arch/x86/kernel/module_32.c |  152 -------------------------
> > >  arch/x86/kernel/module_64.c |  194 --------------------------------
> > >  4 files changed, 262 insertions(+), 347 deletions(-)
> > >  create mode 100644 arch/x86/kernel/module.c
> > >  delete mode 100644 arch/x86/kernel/module_32.c
> > >  delete mode 100644 arch/x86/kernel/module_64.c
> > 
> > Sigh. We went through this before.
> > 
> > First make module_32 and module_64 the same if necessary in 
> > several steps. The last step is to rename one of the files to 
> > module.c and remove the other one.
> > 
> > This cobble all together approach is hard to review and error 
> > prone.
> 
> Correct. There are countless examples of properly structured and 
> well executed unifications in the arch/x86 tree.
> 
> The most recent one has been done by Gustavo F. Padovan - and this 
> was one of this first complex contributions to Linux:
> 
>  c577b09: x86, fixmap: unify fixmap.h
>  c78f322: x86, fixmap: prepare fixmap_32.h for unification
>  e365bcd: x86, fixmap: prepare fixmap_64.h for unification
>  5f403fa: x86, fixmap: add CONFIG_EFI
>  2ae38da: x86, fixmap: add CONFIG_X86_{LOCAL,IO}_APIC
>  fd862dd: x86, fixmap: define reserve_top_address for x86_64
>  ab93e3c: x86, fixmap: define FIXADDR_BOOT_* and redefine FIX_ADDR_SIZE
>  d09375a: x86, fixmap: rename __FIXADDR_SIZE and __FIXADDR_BOOT_SIZE
> 
> Please use this as a template - all-in-one patches for unifications 
> are not reviewable, not testable and not acceptable.
> 

OK, pull request withdrawn.

Thanks,

--
JSR

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