linux-kernel - [PATCH 2/4] x86/smp: Export symbol cpu_clustergroup

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Date:   Mon, 16 Oct 2023 10:40:12 -0700
From:   kan.liang@...ux.intel.com
To:     peterz@...radead.org, mingo@...hat.com,
        linux-kernel@...r.kernel.org
Cc:     artem.bityutskiy@...ux.intel.com, rui.zhang@...el.com,
        Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH 2/4] x86/smp: Export symbol cpu_clustergroup_mask

From: Kan Liang <kan.liang@...ux.intel.com>

Intel cstate PMU driver will invoke the topology_cluster_cpumask() to
retrieve the CPU mask of a cluster. A modpost error is triggered since
the symbol cpu_clustergroup_mask is not exported.

Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
---
 arch/x86/kernel/smpboot.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 48e040618731..376387ca6be5 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -747,6 +747,7 @@ const struct cpumask *cpu_clustergroup_mask(int cpu)
 {
 	return cpu_l2c_shared_mask(cpu);
 }
+EXPORT_SYMBOL(cpu_clustergroup_mask);
 
 static void impress_friends(void)
 {
-- 
2.35.1