linux-kernel - Re: [PATCH 03/10] crypto: Add support for x86 cpuid auto loading for x86 crypto drivers

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Message-ID: <20111219233247.GC570@redhat.com>
Date:	Mon, 19 Dec 2011 18:32:47 -0500
From:	Dave Jones <davej@...hat.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org,
	trenn@...e.de, kay.sievers@....org,
	Andi Kleen <ak@...ux.intel.com>, kay.sievers@...y.org,
	axboe@...nel.dk, herbert@...dor.hengli.com.au, ying.huang@...el.com
Subject: Re: [PATCH 03/10] crypto: Add support for x86 cpuid auto loading for
 x86 crypto drivers

On Mon, Dec 19, 2011 at 03:25:06PM -0800, H. Peter Anvin wrote:

 > >  > -	if (!cpu_has_phe) {
 > >  > -		printk(KERN_NOTICE PFX "VIA PadLock Hash Engine not detected.\n");
 > >  > -		return -ENODEV;
 > >  > -	}
 > >  > -
 > >  > -	if (!cpu_has_phe_enabled) {
 > >  > -		printk(KERN_NOTICE PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n");
 > >  > +	if (!x86_match_cpu(padlock_sha_ids) || !cpu_has_phe_enabled)
 > >  >  		return -ENODEV;
 > >  > -	}
 > > 
 > > don't we want to keep the printk ?
 > > 
 > > Seems that if it's been disabled by the BIOS for some reason, it will now
 > > silently fail instead of printing a nice warning.
 > 
 > The first printk is insanely annoying, because the end result is that we
 > get a printk of all the crypto engines that are *not* enabled...
 > arguably it would be somewhat nice to get a printk when a crypto engine
 > *is* enabled.

Sorry, I just meant the second printk, which should hopefully not get
printed by default.

	Dave

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