[PATCH for review] [116/145] i386: don't taint UP K7's running SMP kernels.

From: Andi Kleen
Date: Thu Aug 10 2006 - 15:55:18 EST


From: Dave Jones <davej@xxxxxxxxxx>

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@xxxxxxxxxx>
Signed-off-by: Andi Kleen <ak@xxxxxxx>

arch/i386/kernel/smpboot.c | 3 +++
1 files changed, 3 insertions(+)

Index: linux/arch/i386/kernel/smpboot.c
--- linux.orig/arch/i386/kernel/smpboot.c
+++ linux/arch/i386/kernel/smpboot.c
@@ -177,6 +177,9 @@ static void __devinit smp_store_cpu_info
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;
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