linux-kernel - Re: [patch 2/3] ps3: BD/DVD/CD-ROM Storage Driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Pine.LNX.4.62.0707191137470.8661@pademelon.sonytel.be>
Date:	Thu, 19 Jul 2007 11:39:32 +0200 (CEST)
From:	Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
cc:	Paul Mackerras <paulus@...ba.org>, Jens Axboe <axboe@...nel.dk>,
	"James E.J. Bottomley" <James.Bottomley@...elEye.com>,
	Linux/PPC Development <linuxppc-dev@...abs.org>,
	Linux Kernel Development <linux-kernel@...r.kernel.org>,
	linux-scsi@...r.kernel.org,
	Geoff Levand <geoffrey.levand@...sony.com>
Subject: Re: [patch 2/3] ps3: BD/DVD/CD-ROM Storage Driver

On Thu, 19 Jul 2007, Andrew Morton wrote:
> On Thu, 19 Jul 2007 11:02:07 +0200 (CEST) Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com> wrote:
> 
> > On Wed, 18 Jul 2007, Andrew Morton wrote:
> > > > +struct ps3rom_private {
> > > > +	struct ps3_storage_device *dev;
> > > > +	struct scsi_cmnd *curr_cmd;
> > > > +};
> > > > +#define ps3rom_priv(dev)	((dev)->sbd.core.driver_data)
> > > > +
> > > 
> > > Someone should invent a keyboard which delivers an electric shock when the
> > > operator types "#define".   In the meanwhile, I get to do the honours.
> > > 
> > > Please don't implement in a macro anything which can be implemented in C.
> > 
> > All I needed was a shorthand to access driver_data, for both read and write
> > access (you cannot do the latter with C, unless you decouple read and write).
> 
> Oh dear.
> 
> 	ps3rom_priv(dev) = host;
> 
> that's 'orrid.  We have an identifier pretending to be a function, only we
> go and treat it as an lvalue.
> 
> I mean, C code should look like C code, and the above just doesn't.
> 
> Sigh.

Do you prefer

static inline struct ps3rom_private *ps3rom_priv_get(struct ps3_storage_device
*dev)
{
	return dev->sbd.core.driver_data;
}

static inline void ps3rom_priv_set(struct ps3_storage_device *dev,
				   struct ps3rom_private *priv)
{
	dev->sbd.core.driver_data = priv;
}

instead?

With kind regards,
 
Geert Uytterhoeven
Software Architect

Sony Network and Software Technology Center Europe
The Corporate Village · Da Vincilaan 7-D1 · B-1935 Zaventem · Belgium
 
Phone:    +32 (0)2 700 8453	
Fax:      +32 (0)2 700 8622	
E-mail:   Geert.Uytterhoeven@...ycom.com	
Internet: http://www.sony-europe.com/
 	
Sony Network and Software Technology Center Europe	
A division of Sony Service Centre (Europe) N.V.	
Registered office: Technologielaan 7 · B-1840 Londerzeel · Belgium	
VAT BE 0413.825.160 · RPR Brussels	
Fortis Bank Zaventem · Swift GEBABEBB08A · IBAN BE39001382358619