X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=kernel%2Fcpu.c;h=fc28e17940e02e84f23404818913958af97b3ffd;hb=9dcefa7232d3fd5a7141454849d46ed24c7af867;hp=e1967e9eddc2c285faf63e0eb3db90faa306572a;hpb=dadedd85630af28b21c826265f7a651f040f6f13;p=linux-2.6-block.git

diff --git a/kernel/cpu.c b/kernel/cpu.c
index e1967e9eddc2..fc28e17940e0 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -392,8 +392,7 @@ enum cpuhp_smt_control cpu_smt_control __read_mostly = CPU_SMT_ENABLED;
 
 void __init cpu_smt_disable(bool force)
 {
-	if (cpu_smt_control == CPU_SMT_FORCE_DISABLED ||
-		cpu_smt_control == CPU_SMT_NOT_SUPPORTED)
+	if (!cpu_smt_possible())
 		return;
 
 	if (force) {
@@ -438,6 +437,14 @@ static inline bool cpu_smt_allowed(unsigned int cpu)
 	 */
 	return !cpumask_test_cpu(cpu, &cpus_booted_once_mask);
 }
+
+/* Returns true if SMT is not supported of forcefully (irreversibly) disabled */
+bool cpu_smt_possible(void)
+{
+	return cpu_smt_control != CPU_SMT_FORCE_DISABLED &&
+		cpu_smt_control != CPU_SMT_NOT_SUPPORTED;
+}
+EXPORT_SYMBOL_GPL(cpu_smt_possible);
 #else
 static inline bool cpu_smt_allowed(unsigned int cpu) { return true; }
 #endif