linux-kernel - Re: [alsa-devel] [PATCH] ASoC: da7210: Add support for PLL and SRM

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>] [day] [month] [year] [list]

Message-ID: <20120416125930.GB3219@opensource.wolfsonmicro.com>
Date:	Mon, 16 Apr 2012 13:59:31 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Ashish Chavan <ashish.chavan@...tcummins.com>
Cc:	lrg <lrg@...com>, alsa-devel <alsa-devel@...a-project.org>,
	David Dajun Chen <david.chen@...semi.com>,
	"kuninori.morimoto.gx" <kuninori.morimoto.gx@...esas.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [alsa-devel] [PATCH] ASoC: da7210: Add support for PLL and SRM

On Mon, Apr 16, 2012 at 05:53:13PM +0530, Ashish Chavan wrote:
> On Fri, 2012-04-13 at 10:30 +0100, Mark Brown wrote:
> > On Wed, Apr 11, 2012 at 10:58:40AM +0530, Ashish Chavan wrote:

> > > +	/* for MASTER mode, fs = 48Khz */
> > > +	{ 12000000, 0xF3, 0x12, 0x7, },		/* MCLK=12Mhz */

> > This *still* has magic number problems.

> OK, will replace frequency values with defines. That is what you are
> pointing, right?

No!  As with *all* the other times you've submitted this you're relying
on magic array indexes to find stuff in the table which I've *repeatedly* 
pointed out is terrible for readability and maintainability.  It's very
disappointing to see the same problem coming back repeatedly.

> > These defines now need to be kept in sync with the table and are going
> > to be *very* painful to review.

> Yes, these defines need to be kept in sync with the table. Can you
> suggest any other, preferred way to do this?

Yes.  For example, you could use the same technique you're using for the
frequencies.

Download attachment "signature.asc" of type "application/pgp-signature" (837 bytes)