linux-kernel - [patch 01/53] x86/cpu/topology: Cure off by one in fake

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Message-ID: <20230807135026.471131104@linutronix.de>
Date:   Mon,  7 Aug 2023 15:52:34 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, Tom Lendacky <thomas.lendacky@....com>,
        Andrew Cooper <andrew.cooper3@...rix.com>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        Huang Rui <ray.huang@....com>, Juergen Gross <jgross@...e.com>,
        Dimitri Sivanich <dimitri.sivanich@....com>,
        Michael Kelley <mikelley@...rosoft.com>,
        Sohil Mehta <sohil.mehta@...el.com>,
        K Prateek Nayak <kprateek.nayak@....com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Zhang Rui <rui.zhang@...el.com>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Feng Tang <feng.tang@...el.com>,
        Andy Shevchenko <andy@...radead.org>
Subject: [patch 01/53] x86/cpu/topology: Cure off by one in fake_topology()

The shift count for a single core CPU is obviously 0 and not 1.

Not that it matters much, but keep it correct.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 arch/x86/kernel/cpu/topology_common.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/kernel/cpu/topology_common.c
+++ b/arch/x86/kernel/cpu/topology_common.c
@@ -75,7 +75,7 @@ static bool fake_topology(struct topo_sc
 	 * which has useless CPUID information.
 	 */
 	topology_set_dom(tscan, TOPO_SMT_DOMAIN, 0, 1);
-	topology_set_dom(tscan, TOPO_CORE_DOMAIN, 1, 1);
+	topology_set_dom(tscan, TOPO_CORE_DOMAIN, 0, 1);
 
 	return tscan->c->cpuid_level < 1 || xen_pv_domain();
 }