linux-kernel - Re: [PATCH -mm 1/3] swsusp: Add ioctl for swap files support

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Date:	Sat, 30 Sep 2006 16:15:47 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Pavel Machek <pavel@....cz>, Andrew Morton <akpm@...l.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -mm 1/3] swsusp: Add ioctl for swap files support

Am Friday 29 September 2006 01:35 schrieb Rafael J. Wysocki:
> @@ -119,7 +119,18 @@ extern int snapshot_image_loaded(struct
>  #define SNAPSHOT_SET_SWAP_FILE         _IOW(SNAPSHOT_IOC_MAGIC, 10,
> unsigned int) #define
> SNAPSHOT_S2RAM                 _IO(SNAPSHOT_IOC_MAGIC, 11) #define
> SNAPSHOT_PMOPS                 _IOW(SNAPSHOT_IOC_MAGIC, 12, unsigned int)
> -#define SNAPSHOT_IOC_MAXNR     12
> +#define SNAPSHOT_SET_SWAP_AREA         _IOW(SNAPSHOT_IOC_MAGIC, 13, void *) 
> +#define SNAPSHOT_IOC_MAXNR     13

Your definition looks wrong, '_IOW(SNAPSHOT_IOC_MAGIC, 13, void *)' means
your ioctl passes a pointer to a 'void *'.

You probably mean 

#define SNAPSHOT_SET_SWAP_AREA _IOW(SNAPSHOT_IOC_MAGIC, 13, \
						struct resume_swap_area)

	Arnd <><
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