From: David Miller <davem@davemloft.net>
To: andi@firstfloor.org
Cc: airlied@linux.ie, dri-devel@lists.sourceforge.net,
linux-kernel@vger.kernel.org, arnd@arndb.de
Subject: Re: is avoiding compat ioctls possible?
Date: Wed, 28 Oct 2009 01:28:16 -0700 (PDT) [thread overview]
Message-ID: <20091028.012816.115332412.davem@davemloft.net> (raw)
In-Reply-To: <20091028081909.GP7744@basil.fritz.box>
From: Andi Kleen <andi@firstfloor.org>
Date: Wed, 28 Oct 2009 09:19:09 +0100
> On Wed, Oct 28, 2009 at 01:11:41AM -0700, David Miller wrote:
>> From: Andi Kleen <andi@firstfloor.org>
>> Date: Wed, 28 Oct 2009 08:59:08 +0100
>>
>> >> }
>> >> - chunk_array_ptr = (uint64_t *)(unsigned long)(cs->chunks);
>> >> +#ifdef CONFIG_COMPAT
>> >> + if (is_compat_task())
>> >
>> > Are the COMPAT ifdefs really needed? The compiler should optimize that
>> > away anyways on non compat aware architectures, shouldn't it?
>>
>> There are no non-compat is_compat_task() definitions, nor are there
>> non-compat build definitions of compat_uptr_t and the assosciated
>> interfaces.
>
> That seems wrong then, better fix that too? It would be certainly better
> than adding a lot of ifdefs.
That's usually done by seperating the compat code into a seperate
file and "obj-$(CONFIG_COMPAT) += foo.o" in the Makefile.
That's not really possible here.
Sure, longer term we can provide those kinds of definitions to avoid
the ifdefs, but that's not what my change is about. :-)
next prev parent reply other threads:[~2009-10-28 8:27 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-28 1:22 Dave Airlie
2009-10-28 2:25 ` David Miller
2009-10-28 3:01 ` Dave Airlie
2009-10-28 2:53 ` Andi Kleen
2009-10-28 3:05 ` Dave Airlie
2009-10-28 3:19 ` Andi Kleen
2009-10-28 3:28 ` Dave Airlie
2009-10-28 3:34 ` Andi Kleen
2009-10-28 3:43 ` David Miller
2009-10-28 3:41 ` David Miller
2009-10-28 21:05 ` Maciej W. Rozycki
2009-10-29 8:27 ` Arnd Bergmann
2009-10-28 3:38 ` David Miller
2009-10-28 3:43 ` Dave Airlie
2009-10-28 3:45 ` David Miller
2009-10-28 3:51 ` Andi Kleen
2009-10-28 3:54 ` Dave Airlie
2009-10-28 5:28 ` David Miller
2009-10-28 5:42 ` Dave Airlie
2009-10-28 6:04 ` David Miller
2009-10-28 7:53 ` David Miller
2009-10-28 7:59 ` Andi Kleen
2009-10-28 8:11 ` David Miller
2009-10-28 8:19 ` Andi Kleen
2009-10-28 8:28 ` David Miller [this message]
2009-10-28 12:13 ` Arnd Bergmann
2009-10-28 12:16 ` David Miller
2009-10-28 15:40 ` Arnd Bergmann
2009-10-29 5:41 ` David Miller
2009-10-29 8:16 ` Arnd Bergmann
2009-10-29 8:34 ` Heiko Carstens
2009-10-29 8:39 ` David Miller
2009-10-28 12:17 ` David Miller
2009-10-30 1:13 ` Dave Airlie
2009-10-30 10:13 ` Arnd Bergmann
2009-11-18 0:26 ` Dave Airlie
2009-11-18 9:09 ` Andi Kleen
2009-11-18 14:42 ` Arnd Bergmann
2009-10-28 3:37 ` David Miller
2009-10-28 4:36 ` Andi Kleen
2009-10-28 5:29 ` David Miller
2009-10-28 10:27 ` Arnd Bergmann
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20091028.012816.115332412.davem@davemloft.net \
--to=davem@davemloft.net \
--cc=airlied@linux.ie \
--cc=andi@firstfloor.org \
--cc=arnd@arndb.de \
--cc=dri-devel@lists.sourceforge.net \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome