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From: Arnd Bergmann <arnd@arndb.de>
To: linuxppc-dev@ozlabs.org
Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>,
	Paul Mackerras <paulus@samba.org>,
	James Simmons <jsimmons@infradead.org>,
	Linux Frame Buffer Device Development
	<linux-fbdev-devel@lists.sourceforge.net>
Subject: Re: [PATCH 7/9] ps3: disable display flipping during mode changes
Date: Fri, 26 Jan 2007 03:13:36 +0100	[thread overview]
Message-ID: <200701260313.36700.arnd@arndb.de> (raw)
In-Reply-To: <Pine.LNX.4.62.0701251850470.24610@pademelon.sonytel.be>

On Thursday 25 January 2007 18:51, Geert Uytterhoeven wrote:
> @@ -33,6 +33,12 @@
>  #define DPRINTK(fmt, args...) do { } while (0)
>  #endif
>  
> +#ifdef CONFIG_FB_PS3
> +extern int ps3fb_flip_ctl(int);
> +#else
> +#define ps3fb_flip_ctl(x)
> +#endif

The empty function should by convention be defined as
'do { } while (0)', like the DPRINTK above.
Even better might be an empty inline function

static inline int ps3fb_flip_ctl(int arg)
{
	return 0;
}

that enables type checking in gcc.

	Arnd <><

  reply	other threads:[~2007-01-26  2:14 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-25 17:46 [PATCH 0/9] ps3av/fb drivers for 2.6.21 Geert Uytterhoeven
2007-01-25 17:48 ` [PATCH 1/9] ps3: AV Settings Driver Geert Uytterhoeven
2007-01-26  3:12   ` Christoph Hellwig
2007-01-29 14:10     ` Geert Uytterhoeven
2007-01-29 16:15       ` Christoph Hellwig
2007-01-29 19:24         ` Geoff Levand
2007-01-30 18:39         ` Segher Boessenkool
2007-01-30 19:39           ` Geert Uytterhoeven
2007-01-31  8:45           ` Christoph Hellwig
2007-01-26  4:13   ` Arnd Bergmann
2007-01-26 14:56     ` Geert Uytterhoeven
2007-01-28 21:37       ` Benjamin Herrenschmidt
2007-01-29 15:14     ` Geert Uytterhoeven
2007-01-30  0:16       ` Arnd Bergmann
2007-01-25 17:48 ` [PATCH 2/9] fbdev modedb: allow refresh rates for named video modes Geert Uytterhoeven
2007-01-25 17:49 ` [PATCH 3/9] fbdev modedb: make more pointer parameters const Geert Uytterhoeven
2007-01-25 17:49 ` [PATCH 4/9] fb_videomode_to_var: reset virtual screen parameters Geert Uytterhoeven
2007-01-25 17:50 ` [PATCH 5/9] ps3: Preallocate bootmem memory for ps3fb Geert Uytterhoeven
2007-01-30  2:29   ` Michael Ellerman
2007-01-30  8:16     ` Geert Uytterhoeven
2007-01-30  8:27       ` Arnd Bergmann
2007-01-30  8:36         ` Geert Uytterhoeven
2007-01-30  9:08           ` Benjamin Herrenschmidt
2007-01-30 10:44             ` Arnd Bergmann
2007-01-30 22:37       ` Michael Ellerman
2007-01-25 17:50 ` [PATCH 6/9] ps3: Virtual Frame Buffer Driver Geert Uytterhoeven
2007-01-25 21:36   ` [Linux-fbdev-devel] " Bernhard Fischer
2007-01-25 17:51 ` [PATCH 7/9] ps3: disable display flipping during mode changes Geert Uytterhoeven
2007-01-26  2:13   ` Arnd Bergmann [this message]
2007-01-25 17:51 ` [PATCH 8/9] ps3: cleanup ps3fb before clearing HPTE Geert Uytterhoeven
2007-01-26  3:14   ` Christoph Hellwig
2007-01-30  2:23     ` Michael Ellerman
2007-03-24 23:46     ` Geoff Levand
2007-03-25 17:43       ` Milton Miller
2007-03-27  1:06         ` Geoff Levand
2007-03-27 17:35       ` Christoph Hellwig
2007-01-25 17:52 ` [PATCH 9/9] ps3: ps3av/fb defconfig updates Geert Uytterhoeven
2007-01-25 17:55 ` [PATCH 0/9] ps3av/fb drivers for 2.6.21 Geert Uytterhoeven

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