From: Arnd Bergmann <arnd@arndb.de>
To: Andreas Schwab <schwab@suse.de>,
linux-kernel@vger.kernel.org, Matthew Wilcox <willy@debian.org>,
Linus Torvalds <torvalds@osdl.org>
Subject: Re: [PATCH] use size_t for the broken ioctl numbers
Date: Sun, 07 Sep 2003 23:28:55 +0200 [thread overview]
Message-ID: <200309072128.h87LScJZ009118@post.webmailer.de> (raw)
In-Reply-To: tbPO.7j9.5@gated-at.bofh.it
Andreas Schwab wrote:
> Linus Torvalds <torvalds@osdl.org> writes:
>> Ie, change the (sizeof(x)) to something like
>>
>> ({ x __dummy; sizeof(__dummy); })
>>
>> which should work with all compiler versions.
>
> This won't work with array types, eg. in <linux/random.h>:
>
> #define RNDGETPOOL _IOR( 'R', 0x02, int [2] )
How about changing (sizeof(x)) to (sizeof(x[1]))?
It will result in "parse error before `['" when x is not
a type or an array type.
Arnd <><
next parent reply other threads:[~2003-09-07 21:28 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <tbGb.75d.15@gated-at.bofh.it>
[not found] ` <tbPO.7j9.5@gated-at.bofh.it>
2003-09-07 21:28 ` Arnd Bergmann [this message]
2003-09-07 23:15 ` [PATCH] use size_t for the broken ioctl numbers Linus Torvalds
2003-09-07 23:21 ` Linus Torvalds
2003-09-08 13:03 ` Arnd Bergmann
2003-09-08 13:33 ` Andreas Schwab
2003-09-08 13:35 ` Andries Brouwer
2003-09-07 6:22 Matthew Wilcox
2003-09-07 16:48 ` Andreas Schwab
2003-09-07 17:29 ` Linus Torvalds
2003-09-07 17:34 ` Andreas Schwab
2003-09-08 13:10 ` Ingo Oeser
2003-09-08 12:38 ` Andries Brouwer
2003-09-08 15:13 ` Linus Torvalds
2003-09-08 18:40 ` Andries Brouwer
2003-09-08 18:54 ` Linus Torvalds
2003-09-08 19:28 ` Randy.Dunlap
2003-09-08 19:53 ` Jeff Garzik
2003-09-08 20:15 ` Linus Torvalds
2003-09-08 20:26 ` Dave Jones
2003-09-08 21:53 ` Jeff Garzik
2003-09-08 22:25 ` Dave Jones
2003-09-08 20:27 ` Andries Brouwer
2003-09-08 20:43 ` Linus Torvalds
2003-09-09 11:40 ` Jens Axboe
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