From: Dave Jones 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: https://git.stricted.de/?a=commitdiff_plain;h=3ca113ea74836a80645c79adba24caaa7a74120c;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.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 Signed-off-by: Andi Kleen --- 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;