Merge tag 'modules-for-v5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-microblaze.git] / kernel / cpu.c

diff --git a/kernel/cpu.c b/kernel/cpu.c
index e1967e9..fc28e17 100644 (file)
--- 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