From: Dave Jones <davej@redhat.com>
Date: Tue, 26 Sep 2006 08:52:34 +0000 (+0200)
Subject: [PATCH] i386: don't taint UP K7's running SMP kernels.
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=3ca113ea74836a80645c79adba24caaa7a74120c;p=openwrt%2Fstaging%2Fblogic.git

[PATCH] i386: don't taint UP K7's running SMP kernels.

We have a test that looks for invalid pairings of certain athlon/durons
that weren't designed for SMP, and taint accordingly (with 'S') if we find
such a configuration.  However, this test shouldn't fire if there's only
a single CPU present. It's perfectly valid for an SMP kernel to boot on UP
hardware for example.

AK: changed to num_possible_cpus()

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>
---

diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index 517eb3874550..020d873b7d21 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -177,6 +177,9 @@ static void __devinit smp_store_cpu_info(int id)
 	 */
 	if ((c->x86_vendor == X86_VENDOR_AMD) && (c->x86 == 6)) {
 
+		if (num_possible_cpus() == 1)
+			goto valid_k7;
+
 		/* Athlon 660/661 is valid. */	
 		if ((c->x86_model==6) && ((c->x86_mask==0) || (c->x86_mask==1)))
 			goto valid_k7;