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From: Sam Ravnborg <sam@ravnborg.org>
To: Andi Kleen <ak@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>,
	peterz@infradead.org, linux-kernel@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH x86] [5/16] Replace hard coded reservations in x86-64 early boot code with dynamic table II
Date: Fri, 4 Jan 2008 21:56:44 +0100	[thread overview]
Message-ID: <20080104205644.GC32174@uranus.ravnborg.org> (raw)
In-Reply-To: <20080104180650.GA2998@bingen.suse.de>

On Fri, Jan 04, 2008 at 07:06:50PM +0100, Andi Kleen wrote:
> > What is then considered "obvious style issues" are today implemented
> > as errors / warnings in checkpatch for the most part. Not everyone
> 
> In my experience checkpatch has a lot of false positives. e.g. when 
> I run it over my pile 20+% of the warnings are just bogus. And in
> a lot of other cases it is that the rules of thumbs it applies
> do not apply to that specific case. 

Tried it on my pile of patches here.
ERROR: "foo * bar" should be "foo *bar"
#33: FILE: scripts/basic/docproc.c:61:
+FILELINE * docsection;

Legitimate error.

And a bunch of > 80 chars WARNINGS.
The warnings I ignore because I prefer readability on my 22" widescreen
but the ERROR should never had hit me.

But thats me that does not adhere to CodingStyle and checkpatch is correct.

> > No-one should submit patches with white-space errors - thank you.
> 
> No I disagree. If white space is suddenly that important -- it is still
> unclear to me why that should be -- then the right way to handle that is 
> at the maintainer level while merging patches. But rejecting patches
> for reasons that a trivial script can fix up is just unnecessary friction
> in the merging process and unnecessary bureaucracy.

Disagree. This is about a distributed model where the individual
submitters shall make life as easy as possible for the maintainer.
And the maintainer shall not be distracted by imporlerly formatted source
code that looks wird. It simple does not scale.
And no tool will help here because first review happens at the diff level
before applying any patch to any code base and the diff has thus never
seen a tool on the maintainer side.

> Unnecessary bureaucracy defined as in rituals that do not 
> actually improve any code or prevent bugs (or even style). I must say I find 
> it a little sad that Linux is dissolving into that now. Ok perhaps
> it is the eventual fate of anything that has been around for quite a long time,
> but it seems to get worse much quicker recently.
Several reasons why it has accelerated:
1) Ingo cares about checkpatch compliance
2) Ingo accepts patches fixing checkpatch compliance
3) We have a codebase that has lower quality than we usually praise us to have

I think it is fine to fix style issue when we do some major surgery in a file,
like unification.
But starting to randomly attack files all over the kernel is IMO to overdue it
and this is happening at the moment. And only carefull reviewing prevents bugs.

	Sam

  parent reply	other threads:[~2008-01-04 20:56 UTC|newest]

Thread overview: 103+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-03 15:42 [PATCH x86] [0/16] Various i386/x86-64 changes Andi Kleen
2008-01-03 15:42 ` [PATCH x86] [1/16] Make clocksource watchdog cycle through online CPUs Andi Kleen
2008-01-04  8:51   ` Ingo Molnar
2008-01-04 12:59     ` Andi Kleen
2008-01-03 15:42 ` [PATCH x86] [2/16] Add a counter for per cpu clocksource watchdog checks and report them in /proc/interrupts Andi Kleen
2008-01-04  8:53   ` Ingo Molnar
2008-01-03 15:42 ` [PATCH x86] [3/16] Turn irq debugging options into module params Andi Kleen
2008-01-04  8:55   ` Ingo Molnar
2008-01-03 15:42 ` [PATCH x86] [4/16] Add /proc/irq/*/spurious to dump the spurious irq debugging state Andi Kleen
2008-01-04  8:58   ` Ingo Molnar
2008-01-04 12:22     ` Andi Kleen
2008-01-03 15:42 ` [PATCH x86] [5/16] Replace hard coded reservations in x86-64 early boot code with dynamic table Andi Kleen
2008-01-04  9:00   ` Ingo Molnar
2008-01-04 12:23     ` Andi Kleen
2008-01-04 12:38     ` [PATCH x86] [5/16] Replace hard coded reservations in x86-64 early boot code with dynamic table II Andi Kleen
2008-01-04 14:41       ` Ingo Molnar
2008-01-04 15:03         ` Andi Kleen
2008-01-04 17:51           ` Sam Ravnborg
2008-01-04 18:06             ` Andi Kleen
2008-01-04 18:47               ` Joe Perches
2008-01-04 22:13                 ` Andi Kleen
2008-01-04 22:46                   ` J. Bruce Fields
2008-01-04 20:56               ` Sam Ravnborg [this message]
2008-01-04 12:41   ` [PATCH x86] [5/16] Replace hard coded reservations in x86-64 early boot code with dynamic table Cyrill Gorcunov
2008-01-03 15:42 ` [PATCH x86] [6/16] Add a new arch_early_alloc() interface for x86-64 Andi Kleen
2008-01-03 16:22   ` Eric Dumazet
2008-01-03 17:17     ` Andi Kleen
2008-01-03 15:42 ` [PATCH x86] [7/16] Convert lockdep to use arch_early_alloc() if available for its large arrays Andi Kleen
2008-01-04  9:03   ` Ingo Molnar
2008-01-03 15:42 ` [PATCH x86] [8/16] Make lockdep_init __init Andi Kleen
2008-01-04  9:06   ` Ingo Molnar
2008-01-03 15:42 ` [PATCH x86] [9/16] Remove CPU capabitilites printks on i386 Andi Kleen
2008-01-04  9:11   ` Ingo Molnar
2008-01-03 15:42 ` [PATCH x86] [10/16] Document fdimage/isoimage completely in make help Andi Kleen
2008-01-04  9:00   ` Sam Ravnborg
2008-01-04  9:15     ` Ingo Molnar
2008-01-03 15:42 ` [PATCH x86] [11/16] Compile apm and voyager module only when selected in Kconfig Andi Kleen
2008-01-04  4:15   ` Stephen Rothwell
2008-01-03 15:42 ` [PATCH x86] [12/16] Optimize lock prefix switching to run less frequently Andi Kleen
2008-01-04  9:42   ` Thomas Gleixner
2008-01-04 12:17     ` Andi Kleen
2008-01-04 14:19       ` Thomas Gleixner
2008-01-04 14:39         ` Andi Kleen
2008-01-04 15:02           ` Pekka Enberg
2008-01-04 15:04             ` Andi Kleen
2008-01-04 20:34           ` Thomas Gleixner
2008-01-04 22:11             ` Andi Kleen
2008-01-05  1:19               ` Ingo Molnar
2008-01-05 14:37                 ` Andi Kleen
2008-01-03 15:42 ` [PATCH x86] [13/16] i386: Set CFQ as default in i386 defconfig Andi Kleen
2008-01-04  9:19   ` Ingo Molnar
2008-01-03 15:42 ` [PATCH x86] [14/16] Enable RDC321X subarch only on 32bit Andi Kleen
2008-01-04  9:22   ` Ingo Molnar
2008-01-03 15:42 ` [PATCH x86] [15/16] Force __cpuinit on for CONFIG_PM without HOTPLUG_CPU Andi Kleen
2008-01-03 17:22   ` Rafael J. Wysocki
2008-01-03 17:42     ` Andi Kleen
2008-01-03 21:41       ` Rafael J. Wysocki
2008-01-04  9:23         ` Ingo Molnar
2008-01-10 17:14           ` Rafael J. Wysocki
2008-01-03 18:14   ` Adrian Bunk
2008-01-03 18:43     ` Andi Kleen
2008-01-10  9:54       ` Adrian Bunk
2008-01-10  9:58         ` Andi Kleen
2008-01-10 10:19           ` Adrian Bunk
2008-01-10 11:15             ` Andi Kleen
2008-01-10 11:26               ` Adrian Bunk
2008-01-10 11:42                 ` Andi Kleen
2008-01-10 12:47                   ` Adrian Bunk
2008-01-10 13:12                     ` Andi Kleen
2008-01-10 15:09                       ` Adrian Bunk
2008-01-14 13:52                         ` Ingo Molnar
2008-01-14 14:09                           ` Sam Ravnborg
2008-01-14 14:58                             ` Ingo Molnar
2008-01-14 15:01                               ` Ingo Molnar
2008-01-14 18:20                                 ` Adrian Bunk
2008-01-14 19:10                                   ` Ingo Molnar
2008-01-14 19:52                                     ` Adrian Bunk
2008-01-14 20:01                                       ` Sam Ravnborg
2008-01-14 20:18                                         ` Adrian Bunk
2008-01-14 20:27                                           ` Sam Ravnborg
2008-01-14 20:34                                             ` Adrian Bunk
2008-01-15 22:14                                           ` Ingo Molnar
2008-01-15 22:51                                             ` Adrian Bunk
2008-01-14 19:59                                 ` Sam Ravnborg
2008-01-15 22:12                                   ` [patch for v2.6.24] fix section mismatch warning in page_alloc.c Ingo Molnar
2008-01-14 15:05                               ` [PATCH x86] [15/16] Force __cpuinit on for CONFIG_PM without HOTPLUG_CPU Ingo Molnar
2008-01-14 15:24                                 ` Ingo Molnar
2008-01-14 20:12                                   ` Sam Ravnborg
2008-01-15 15:17                                     ` Ingo Molnar
2008-01-15 16:25                                       ` Sam Ravnborg
2008-01-15 17:11                                         ` Andi Kleen
2008-01-15 17:27                                           ` Adrian Bunk
2008-01-15 18:21                                           ` Sam Ravnborg
2008-01-15 18:29                                             ` Andi Kleen
2008-01-15 18:31                                               ` Sam Ravnborg
2008-01-15 18:47                                             ` Adrian Bunk
2008-01-14 18:17                               ` Adrian Bunk
2008-01-14 15:25                           ` Adrian Bunk
2008-01-10 17:17                   ` Rafael J. Wysocki
2008-01-11 23:06                     ` [PATCH] x86: Change unnecessary dependencies on CONFIG_PM Rafael J. Wysocki
2008-01-03 15:42 ` [PATCH x86] [16/16] Mark memory_setup __init Andi Kleen
2008-01-04  9:25   ` Ingo Molnar
2008-01-04  9:53     ` Ingo Molnar

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