linux-kernel - [PATCH] padlock: don't whinge when loaded on a non-VIA cpu

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Message-ID: <20080708190427.GA28899@phobos.i.cabal.ca>
Date:	Tue, 8 Jul 2008 15:04:27 -0400
From:	Kyle McMartin <kmcmartin@...hat.com>
To:	linux-kernel@...r.kernel.org
Subject: [PATCH] padlock: don't whinge when loaded on a non-VIA cpu

I've become seriously tired of seeing these messages on every machine
running an i386 Fedora kernel...

padlock: VIA PadLock not detected.
padlock: VIA PadLock Hash Engine not detected.

So let's eliminate them!

Signed-off-by: Kyle McMartin <kmcmartin@...hat.com>

---
diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c
index bb30eb9..c11f456 100644
--- a/drivers/crypto/padlock-aes.c
+++ b/drivers/crypto/padlock-aes.c
@@ -384,6 +384,9 @@ static int __init padlock_init(void)
 {
 	int ret;
 
+	if (!(boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR))
+		return -ENODEV;
+
 	if (!cpu_has_xcrypt) {
 		printk(KERN_ERR PFX "VIA PadLock not detected.\n");
 		return -ENODEV;
diff --git a/drivers/crypto/padlock-sha.c b/drivers/crypto/padlock-sha.c
index c666b4e..9b360fb 100644
--- a/drivers/crypto/padlock-sha.c
+++ b/drivers/crypto/padlock-sha.c
@@ -253,6 +253,9 @@ static int __init padlock_init(void)
 {
 	int rc = -ENODEV;
 
+	if (!(boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR))
+		return -ENODEV;
+
 	if (!cpu_has_phe) {
 		printk(KERN_ERR PFX "VIA PadLock Hash Engine not detected.\n");
 		return -ENODEV;
--
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