From: Linus Torvalds <torvalds@osdl.org>
To: Greg KH <gregkh@suse.de>
Cc: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Subject: Re: [GIT PATCH] more Driver core patches for 2.6.19
Date: Wed, 13 Dec 2006 12:12:04 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0612131205360.5718@woody.osdl.org> (raw)
In-Reply-To: <20061213195226.GA6736@kroah.com>
On Wed, 13 Dec 2006, Greg KH wrote:
>
> - userspace io driver interface added. This allows the ability
> to write userspace drivers for some types of hardware much
> easier than before, going through a simple interface to get
> accesses to irqs and memory regions. A small kernel portion
> is still needed to handle the irq properly, but that is it.
Ok, what kind of ass-hat idiotic thing is this?
irqreturn_t uio_irq_handler(int irq, void *dev_id)
{
return IRQ_HANDLED;
}
exactly what is the point here? No way will I pull this kind of crap. You
just seem to have guaranteed a dead machine if the irq is level-triggered,
since it will keep on happening forever.
Please remove.
YOU CANNOT DO IRQ'S BY LETTING USER SPACE SORT IT OUT!
It's really that easy. The irq handler has to be _entirely_ in kernel
space. No user-space ass-hattery here.
And I don't care one whit if it happens to work on parport with an old
legacy ISA interrupt that is edge-triggered. That's not even the
interesting case. Never will be.
NAK NAK NAK NAK.
Linus
next prev parent reply other threads:[~2006-12-13 20:12 UTC|newest]
Thread overview: 201+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-13 19:52 [GIT PATCH] more Driver core patches for 2.6.19 Greg KH
[not found] ` <1166039585152-git-send-email-greg@kroah.com>
[not found] ` <11660395913232-git-send-email-greg@kroah.com>
[not found] ` <11660395951158-git-send-email-greg@kroah.com>
[not found] ` <11660395998-git-send-email-greg@kroah.com>
2006-12-13 19:52 ` [PATCH 5/14] Driver core: show "initstate" of module Greg KH
2006-12-13 19:52 ` [PATCH 6/14] driver core: delete virtual directory on class_unregister() Greg KH
2006-12-13 19:52 ` [PATCH 7/14] DebugFS : inotify create/mkdir support Greg KH
2006-12-13 19:52 ` [PATCH 8/14] DebugFS : coding style fixes Greg KH
2006-12-13 19:53 ` [PATCH 9/14] DebugFS : file/directory creation error handling Greg KH
2006-12-13 19:53 ` [PATCH 10/14] DebugFS : more " Greg KH
2006-12-13 19:53 ` [PATCH 11/14] DebugFS : file/directory removal fix Greg KH
2006-12-13 19:53 ` [PATCH 12/14] Driver core: "platform_driver_probe() can save codespace": save codespace Greg KH
2006-12-13 19:53 ` [PATCH 13/14] Driver core: Make platform_device_add_data accept a const pointer Greg KH
2006-12-13 19:53 ` [PATCH 14/14] Driver core: deprecate PM_LEGACY, default it to N Greg KH
2006-12-13 20:12 ` Linus Torvalds [this message]
2006-12-13 20:31 ` [GIT PATCH] more Driver core patches for 2.6.19 Greg KH
2006-12-13 20:58 ` Linus Torvalds
2006-12-13 21:08 ` Linus Torvalds
2006-12-13 21:15 ` Arjan van de Ven
2006-12-14 9:30 ` Muli Ben-Yehuda
2006-12-14 10:13 ` Hans-Jürgen Koch
2006-12-13 21:36 ` Thomas Gleixner
2006-12-13 21:46 ` Benjamin Herrenschmidt
2006-12-13 23:40 ` Greg KH
2006-12-14 8:49 ` Duncan Sands
2006-12-14 9:56 ` Hans-Jürgen Koch
2006-12-14 11:51 ` Olivier Galibert
2006-12-14 12:45 ` Hans-Jürgen Koch
2006-12-14 19:16 ` Olivier Galibert
2006-12-14 12:39 ` Alan
2006-12-14 13:08 ` Hans-Jürgen Koch
2006-12-14 17:02 ` Jan Engelhardt
2006-12-14 17:17 ` Hans-Jürgen Koch
2006-12-14 17:57 ` Jan Engelhardt
2006-12-16 20:13 ` Lee Revell
2006-12-16 20:28 ` Jan Engelhardt
2006-12-14 17:34 ` Bernd Petrovitsch
2006-12-14 17:47 ` Hans-Jürgen Koch
2006-12-14 17:59 ` Bernd Petrovitsch
2006-12-14 12:27 ` James Courtier-Dutton
2006-12-13 20:38 ` Michael K. Edwards
2006-12-13 21:02 ` Greg KH
2006-12-13 21:32 ` Martin Bligh
2006-12-13 21:47 ` Andrew Morton
2006-12-13 22:09 ` GPL only modules [was Re: [GIT PATCH] more Driver core patches for 2.6.19] Greg KH
2006-12-14 0:32 ` Greg KH
2006-12-14 0:43 ` Jonathan Corbet
2006-12-14 0:55 ` Greg KH
2006-12-14 1:00 ` Linus Torvalds
2006-12-14 1:08 ` Michael K. Edwards
2006-12-14 1:30 ` Grzegorz Kulewski
2006-12-14 1:58 ` Greg KH
2006-12-14 4:15 ` Linus Torvalds
2006-12-14 5:39 ` Martin J. Bligh
2006-12-14 6:01 ` Hua Zhong
2006-12-14 11:14 ` Alan
2006-12-14 11:31 ` Hans-Jürgen Koch
2006-12-14 12:42 ` Alan
2006-12-14 12:54 ` Hans-Jürgen Koch
2006-12-14 16:59 ` Greg KH
2006-12-14 18:26 ` Alan
2006-12-14 21:16 ` Greg KH
2006-12-14 12:55 ` Jan Engelhardt
2006-12-14 13:10 ` Arjan van de Ven
2006-12-14 17:17 ` Jan Engelhardt
2006-12-17 10:54 ` Geert Uytterhoeven
2006-12-14 8:03 ` James Morris
2006-12-14 15:39 ` Adrian Bunk
2006-12-14 20:08 ` David Schwartz
2006-12-15 14:05 ` Paolo Ornati
2006-12-17 10:11 ` Geert Uytterhoeven
2006-12-17 10:56 ` Rafael J. Wysocki
2006-12-19 12:57 ` Marek Wawrzyczny
2006-12-19 13:56 ` Diego Calleja
2006-12-19 16:46 ` Gene Heskett
2006-12-19 17:11 ` Bill Nottingham
2006-12-19 17:24 ` Gene Heskett
2006-12-19 17:13 ` Diego Calleja
2006-12-20 5:11 ` Valdis.Kletnieks
2006-12-20 19:29 ` David Schwartz
2006-12-20 20:52 ` Valdis.Kletnieks
2006-12-20 21:10 ` alan
2006-12-21 15:34 ` Marek Wawrzyczny
2006-12-21 16:43 ` Horst H. von Brand
2006-12-21 19:28 ` Valdis.Kletnieks
2006-12-24 3:11 ` Horst H. von Brand
2006-12-20 4:27 ` Steven Rostedt
2006-12-14 13:07 ` Dave Jones
2006-12-14 15:05 ` Adrian Bunk
2006-12-14 16:11 ` Dave Jones
2006-12-14 16:31 ` Olivier Galibert
2006-12-14 15:36 ` Martin J. Bligh
2006-12-14 17:20 ` Jan Engelhardt
2006-12-14 14:12 ` Ben Collins
2006-12-14 15:10 ` James Courtier-Dutton
2006-12-14 16:09 ` Dave Jones
2006-12-14 16:36 ` Ben Collins
2006-12-14 17:34 ` Jan Engelhardt
2006-12-14 19:29 ` Michael Buesch
2006-12-14 20:19 ` Ben Collins
2006-12-14 7:24 ` Jeffrey V. Merkey
2006-12-14 8:21 ` David Woodhouse
2006-12-14 11:25 ` Alan
2007-01-22 23:37 ` dfsg isn't fsf (Re: GPL only modules [was Re: [GIT PATCH] more Driver core patches for 2.6.19]) Oleg Verych
2006-12-14 14:53 ` GPL only modules [was Re: [GIT PATCH] more Driver core patches for 2.6.19] Theodore Tso
2006-12-14 16:52 ` Linus Torvalds
2006-12-14 17:33 ` Jeff V. Merkey
2006-12-14 18:01 ` Martin J. Bligh
2006-12-14 18:12 ` Jeff V. Merkey
2006-12-14 18:37 ` Linus Torvalds
2006-12-14 18:30 ` Jeff V. Merkey
2006-12-14 9:34 ` James Courtier-Dutton
2006-12-24 11:57 ` Mark Hounschell
2006-12-24 13:22 ` Sean
2006-12-24 14:42 ` Mark Hounschell
2006-12-14 10:49 ` Xavier Bestel
2006-12-14 13:04 ` Dave Jones
2006-12-14 13:46 ` Ben Collins
2006-12-14 17:21 ` Jan Engelhardt
2006-12-14 17:49 ` Ben Collins
2006-12-14 15:46 ` Jeff Garzik
2006-12-14 17:03 ` Linus Torvalds
2006-12-14 17:08 ` Chris Wedgwood
2006-12-14 17:38 ` Christoph Hellwig
2006-12-14 17:52 ` Chris Wedgwood
2006-12-14 18:09 ` Jan Engelhardt
2006-12-18 10:28 ` GPL only modules Eric W. Biederman
2006-12-14 18:15 ` GPL only modules [was Re: [GIT PATCH] more Driver core patches for 2.6.19] Eric Sandeen
2006-12-14 18:39 ` Chris Wedgwood
2006-12-14 18:51 ` Linus Torvalds
2006-12-14 19:42 ` Scott Preece
2006-12-14 19:34 ` Jeff V. Merkey
2006-12-15 5:28 ` GPL only modules Alexandre Oliva
2006-12-15 10:13 ` GPL only modules [was Re: [GIT PATCH] more Driver core patches for 2.6.19] Eduard Bloch
2006-12-15 17:44 ` Dave Neuer
2006-12-18 10:55 ` Eric W. Biederman
2006-12-18 17:05 ` Jeff V. Merkey
2006-12-14 19:49 ` Hua Zhong
2006-12-17 10:57 ` Geert Uytterhoeven
2006-12-14 16:17 ` Adrian Bunk
2006-12-14 16:33 ` Alan
2006-12-14 16:54 ` Adrian Bunk
2006-12-14 17:17 ` Theodore Tso
2006-12-14 18:18 ` Alan
2006-12-14 19:51 ` Adrian Bunk
2006-12-21 15:38 ` Pavel Machek
2006-12-23 11:24 ` Adrian Bunk
2006-12-23 21:36 ` Pavel Machek
2006-12-24 1:07 ` Adrian Bunk
2006-12-19 15:12 ` free module selection Markus Elfring
2006-12-14 5:10 ` GPL only modules [was Re: [GIT PATCH] more Driver core patches for 2.6.19] Bill Nottingham
2006-12-14 8:48 ` Greg KH
2006-12-14 14:02 ` Rik van Riel
2006-12-14 15:42 ` Chris Friesen
2006-12-14 15:47 ` Alan
2006-12-14 15:48 ` Jeff Garzik
2006-12-14 22:21 ` Dave Airlie
2006-12-14 22:26 ` Michael Buesch
2006-12-14 22:39 ` Dave Airlie
2006-12-14 22:45 ` Michael Buesch
2006-12-14 19:32 ` Bill Nottingham
2006-12-14 5:58 ` Nigel Cunningham
2006-12-14 7:54 ` David Schwartz
2006-12-14 8:21 ` David Woodhouse
2006-12-14 10:36 ` Alan
2006-12-14 14:57 ` Adrian Bunk
2006-12-24 14:27 ` Pavel Machek
2006-12-24 19:59 ` Dmitry Torokhov
2006-12-13 22:20 ` [GIT PATCH] more Driver core patches for 2.6.19 Michael K. Edwards
2006-12-13 22:59 ` Kyle Moffett
2006-12-13 23:55 ` Alan
2006-12-14 2:11 ` Al Viro
2006-12-14 17:22 ` Linus Torvalds
2006-12-14 15:13 ` Rik van Riel
2006-12-13 21:48 ` Michael K. Edwards
2006-12-13 21:03 ` Linus Torvalds
2006-12-16 9:05 ` Pavel Machek
2006-12-16 11:04 ` Jörn Engel
2006-12-17 10:49 ` Pavel Machek
2006-12-13 21:14 ` Benjamin Herrenschmidt
2006-12-13 21:22 ` Jan Engelhardt
2006-12-13 23:28 ` Linus Torvalds
2006-12-14 11:18 ` Jan Engelhardt
2006-12-14 11:26 ` Jan Engelhardt
2006-12-14 17:32 ` Linus Torvalds
2006-12-14 18:04 ` Jan Engelhardt
2006-12-14 17:26 ` Linus Torvalds
2006-12-14 20:47 ` Thomas Gleixner
2006-12-14 22:59 ` Linus Torvalds
2006-12-14 23:37 ` Thomas Gleixner
2006-12-13 21:26 ` Linus Torvalds
2006-12-13 22:14 ` Benjamin Herrenschmidt
2006-12-13 22:30 ` Thomas Gleixner
2006-12-13 22:39 ` Benjamin Herrenschmidt
2006-12-13 23:11 ` Thomas Gleixner
2006-12-13 23:39 ` Michael K. Edwards
2006-12-14 0:00 ` Alan
2006-12-13 23:56 ` Alan
2006-12-14 0:08 ` Greg KH
2006-12-14 9:15 ` Thomas Gleixner
2006-12-14 11:33 ` Alan
2006-12-13 22:40 ` Thomas Gleixner
2006-12-13 22:45 ` Benjamin Herrenschmidt
2006-12-13 23:15 ` Thomas Gleixner
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