From: Stefan Richter <stefanr@s5r6.in-berlin.de>
To: Devin Heitmueller <dheitmueller@kernellabs.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>,
Hans Verkuil <hverkuil@xs4all.nl>, Jesper Juhl <jj@chaosbits.net>,
LKML <linux-kernel@vger.kernel.org>,
trivial@kernel.org, linux-media@vger.kernel.org,
ceph-devel@vger.kernel.org, Sage Weil <sage@newdream.net>
Subject: Re: [RFC] Don't use linux/version.h anymore to indicate a per-driver version - Was: Re: [PATCH 03/37] Remove unneeded version.h includes from include/
Date: Fri, 24 Jun 2011 23:10:28 +0200 [thread overview]
Message-ID: <20110624231028.7f03dcae@stein> (raw)
In-Reply-To: <BANLkTimj-oEDvWxMao6zJ_sudUntEVjO1w@mail.gmail.com>
On Jun 24 Devin Heitmueller wrote:
> Really, this is all about applications being able to jam a hack into
> their code that translates to "don't call this ioctl() with some
> particular argument if it's driver W less than version X, because the
> driver had a bug that is likely to panic the guy's PC". Sure, it's a
> crummy solution, but at this point it's the best that we have got.
The second best. The best that we have got is that the user runs a fixed
kernel.
Anyway; if this is the only purpose that this interface version¹ serves,
then Mauro's subsystem-centralized solution has the benefit that it
eliminates mistakes due to oversight by individual driver authors.
Especially because the kind of implementation behavior changes that are
tracked by this type of version datum are sometimes just discovered or
documented in hindsight. On the other hand, Mauro's solution is redundant
to the uname(2) syscall.
¹) Yes, it is still an ABI version, nothing less. With all its backwards
and forwards compatibility ramifications.
--
Stefan Richter
-=====-==-== -==- ==---
http://arcgraph.de/sr/
next prev parent reply other threads:[~2011-06-24 21:10 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-23 21:51 [PATCH 00/37] Remove unneeded version.h includes (and add where needed) Jesper Juhl
2011-06-23 21:54 ` [PATCH 01/37] Remove unneeded version.h includes from sound/ Jesper Juhl
2011-06-24 9:29 ` Takashi Iwai
2011-06-23 21:56 ` [PATCH 02/37] Remove unneeded version.h include from lib/ Jesper Juhl
2011-06-23 21:58 ` [PATCH 03/37] Remove unneeded version.h includes from include/ Jesper Juhl
2011-06-23 22:15 ` Sage Weil
2011-06-24 11:21 ` [RFC] Don't use linux/version.h anymore to indicate a per-driver version - Was: " Mauro Carvalho Chehab
2011-06-24 11:26 ` Hans Verkuil
2011-06-24 12:20 ` Devin Heitmueller
2011-06-24 13:29 ` Mauro Carvalho Chehab
2011-06-24 13:45 ` Devin Heitmueller
2011-06-24 13:54 ` Hans Verkuil
2011-06-24 14:37 ` Mauro Carvalho Chehab
2011-06-24 18:25 ` [PATCH] [media] Stop using linux/version.h on most drivers Mauro Carvalho Chehab
2011-06-25 10:09 ` Hans Verkuil
2011-06-25 12:14 ` Mauro Carvalho Chehab
2011-06-27 0:59 ` Laurent Pinchart
2011-06-24 18:34 ` [RFC] Don't use linux/version.h anymore to indicate a per-driver version - Was: Re: [PATCH 03/37] Remove unneeded version.h includes from include/ Stefan Richter
2011-06-24 18:48 ` Devin Heitmueller
2011-06-24 21:04 ` Andy Walls
2011-06-24 21:20 ` Stefan Richter
2011-06-24 21:22 ` Devin Heitmueller
2011-06-24 21:49 ` Mauro Carvalho Chehab
2011-06-24 22:39 ` Stefan Richter
2011-06-24 23:02 ` Mauro Carvalho Chehab
2011-06-24 22:16 ` Mauro Carvalho Chehab
2011-06-24 22:57 ` Andy Walls
2011-06-24 21:10 ` Stefan Richter [this message]
2011-06-24 21:52 ` Mauro Carvalho Chehab
2011-06-24 21:44 ` Mauro Carvalho Chehab
2011-06-23 21:59 ` [PATCH 04/37] Remove unneeded version.h includes from fs/ Jesper Juhl
2011-06-24 13:26 ` Bob Copeland
2011-06-23 22:00 ` [PATCH 05/37] Remove unneeded version.h include from arch/x86/ Jesper Juhl
2011-06-23 22:07 ` [PATCH 06/37] Remove unneeded version.h includes from arch/mips/ Jesper Juhl
2011-08-02 10:22 ` Ralf Baechle
2011-06-23 22:08 ` [PATCH 07/37] Remove unneeded version.h includes from arch/arm/ Jesper Juhl
2011-06-23 23:01 ` Jiandong Zheng
2011-06-23 23:02 ` JD (Jiandong) Zheng
2011-06-23 22:09 ` [PATCH 08/37] Remove unneeded version.h includes from drivers/block/ Jesper Juhl
2011-06-23 22:10 ` [PATCH 09/37] Remove unneeded version.h includes from drivers/input/ Jesper Juhl
2011-06-23 22:50 ` Mike Frysinger
2011-06-27 7:10 ` Hennerich, Michael
2011-06-27 19:00 ` Dmitry Torokhov
2011-06-23 22:11 ` [PATCH 10/37] Remove unneeded version.h includes from drivers/media/dvb/ Jesper Juhl
2011-06-23 22:14 ` [PATCH 11/37] Remove unneeded version.h includes (and add where needed) for drivers/media/radio/ Jesper Juhl
2011-06-23 22:17 ` [PATCH 12/37] Remove unneeded version.h includes (and add where needed) for drivers/media/video/ Jesper Juhl
2011-06-24 8:52 ` Laurent Pinchart
2011-06-23 22:21 ` [PATCH 13/37] Remove unneeded version.h includes from drivers/net/ Jesper Juhl
2011-06-24 9:40 ` David Miller
2011-06-23 22:26 ` [PATCH 14/37] Remove unneeded version.h includes from drivers/scsi/ Jesper Juhl
2011-06-23 22:30 ` [PATCH 15/37] Remove unneeded version.h includes from drivers/target/ Jesper Juhl
2011-06-23 22:31 ` [PATCH 16/37] Remove unneeded version.h includes (and add where needed) for drivers/usb/ Jesper Juhl
2011-06-27 8:20 ` Felipe Balbi
2011-06-27 8:49 ` Laurent Pinchart
2011-06-23 22:32 ` [PATCH 17/37] Remove unneeded version.h include from drivers/uwb/ Jesper Juhl
2011-06-23 22:35 ` [PATCH 18/37] Remove unneeded version.h includes from drivers/video/ Jesper Juhl
2011-06-23 22:51 ` Mike Frysinger
2011-06-24 8:17 ` Paul Mundt
2011-06-23 22:40 ` [PATCH 19/37] Remove unneeded version.h includes from drivers/staging/rtl*/ Jesper Juhl
2011-06-23 23:57 ` Larry Finger
2011-06-23 22:41 ` [PATCH 20/37] Remove unneeded version.h includes from drivers/staging/gma500/ Jesper Juhl
2011-06-23 23:17 ` Alan Cox
2011-07-07 10:42 ` Alan Cox
2011-06-23 22:42 ` [PATCH 21/37] Remove unneeded version.h includes from drivers/staging/ath6kl/ Jesper Juhl
2011-06-23 22:43 ` [PATCH 22/37] Remove unneeded version.h include from drivers/staging/bcm/headers.h Jesper Juhl
2011-06-23 22:44 ` [PATCH 23/37] Remove unneeded version.h include from drivers/staging/cxd2099/cxd2099.c Jesper Juhl
2011-06-23 22:47 ` [PATCH 24/37] Remove unneeded version.h include from drivers/staging/cxt1e1/sbecom_inline_linux.h Jesper Juhl
2011-06-23 22:51 ` [PATCH 25/37] Remove unneeded version.h includes (and add where needed) for drivers/staging/easycap/ Jesper Juhl
2011-06-23 22:52 ` [PATCH 26/37] Remove unneeded version.h include from drivers/staging/hv/hv_timesource.c Jesper Juhl
2011-06-23 22:53 ` [PATCH 27/37] Remove unneeded version.h includes from drivers/staging/lirc/ Jesper Juhl
2011-06-23 22:54 ` [PATCH 28/37] Remove unneeded version.h include from drivers/staging/mei/main.c Jesper Juhl
2011-06-23 22:56 ` [PATCH 29/37] Remove unneeded version.h includes from drivers/staging/msm/ Jesper Juhl
2011-06-24 1:47 ` David Brown
2011-06-23 22:58 ` [PATCH 30/37] Remove unneeded version.h include from drivers/staging/panel/panel.c Jesper Juhl
2011-06-23 23:00 ` [PATCH 31/37] Remove unneeded version.h include from drivers/staging/rts_pstor/rtsx.h Jesper Juhl
2011-06-23 23:01 ` [PATCH 32/37] Remove unneeded version.h includes from drivers/staging/speakup/ Jesper Juhl
2011-06-23 23:02 ` [PATCH 33/37] Remove unneeded version.h include from drivers/staging/tidspbridge/include/dspbridge/host_os.h Jesper Juhl
2011-06-23 23:04 ` [PATCH 34/37] Remove unneeded version.h includes (and add where needed) for drivers/tm6000/ Jesper Juhl
2011-06-23 23:05 ` [PATCH 35/37] Remove unneeded version.h includes from drivers/staging/wlags49_h2/ Jesper Juhl
2011-06-23 23:06 ` [PATCH 36/37] Remove unneeded version.h include from drivers/staging/wlan-ng/prism2sta.c Jesper Juhl
2011-06-23 23:08 ` [PATCH 37/37] Remove unneeded version.h includes from drivers/staging/xgifb/ Jesper Juhl
2011-06-24 9:13 ` [PATCH 00/37] Remove unneeded version.h includes (and add where needed) Jiri Kosina
2011-06-24 10:48 ` Jesper Juhl
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