From: Andreas Schwab <schwab@suse.de>
To: Jan Kasprzak <kas@fi.muni.cz>
Cc: Arnd Bergmann <arnd@arndb.de>,
torvalds@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] cosa.h ioctl numbers
Date: Thu, 02 Dec 2004 14:57:43 +0100 [thread overview]
Message-ID: <jeu0r4ajl4.fsf@sykes.suse.de> (raw)
In-Reply-To: <20041202131224.GI11992@fi.muni.cz> (Jan Kasprzak's message of "Thu, 2 Dec 2004 14:12:25 +0100")
Jan Kasprzak <kas@fi.muni.cz> writes:
> Arnd Bergmann wrote:
> : > /* Write the block to the device memory (i.e. download the microcode) */
> : > -#define COSAIODOWNLD _IOW('C',0xf2, struct cosa_download)
> : > +#define COSAIODOWNLD _IOW('C',0xf2, struct cosa_download *)
> :
> : Isn't that rather misleading? I suppose the real argument is
> : 'struct cosa_download', so you should have some kind of comment there,
> : e.g.
> :
> : #define COSAIODOWNLD _IOW('C',0xf2, long) /* actually struct cosa_download */
>
> Well, the third argument of ioctl(2) is of type
> struct cosa_download *.
>
> OK, second try with comments added.
If you want real compatibility you should use size_t, which is what 2.4 is
effectively using.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2004-12-02 13:57 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-02 12:44 [PATCH] cosa.h ioctl numbers Jan Kasprzak
2004-12-02 12:58 ` Arnd Bergmann
2004-12-02 13:12 ` Jan Kasprzak
2004-12-02 13:57 ` Andreas Schwab [this message]
2004-12-02 14:11 ` Jan Kasprzak
2004-12-02 15:13 ` Andreas Schwab
2004-12-02 15:50 ` Linus Torvalds
2005-01-06 10:02 ` Jan Kasprzak
2004-12-02 15:56 ` Jan Kasprzak
2004-12-02 16:45 ` Andreas Schwab
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