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authorDave Jones <davej@redhat.com>2006-09-26 10:52:34 +0200
committerAndi Kleen <andi@basil.nowhere.org>2006-09-26 10:52:34 +0200
commit3ca113ea74836a80645c79adba24caaa7a74120c (patch)
treedbb6f5ac7c3583cd7e2729f8e11fe676bbb3b84e /arch
parent5758d5dfef1c514200bda3f29ba700f1c3e3bc99 (diff)
downloadblackbird-obmc-linux-3ca113ea74836a80645c79adba24caaa7a74120c.tar.gz
blackbird-obmc-linux-3ca113ea74836a80645c79adba24caaa7a74120c.zip
[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>
Diffstat (limited to 'arch')
-rw-r--r--arch/i386/kernel/smpboot.c3
1 files changed, 3 insertions, 0 deletions
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;
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