x86/acpi/cstate: Remove open coded check for cpu_feature_enabled()

acpi_processor_power_init_bm_check() has an open coded implementation
of cpu_feature_enabled() to detect X86_FEATURE_ZEN.

Switch to using cpu_feature_enabled().

Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
index 8698d66563ed64c47c04a3c9adfbdc7c74a15da4..0281703da5e2626d1cea596b6ba2c5781e6467a3 100644 (file)
--- a/arch/x86/kernel/acpi/cstate.c
+++ b/arch/x86/kernel/acpi/cstate.c
@@ -89,7 +89,7 @@ void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,
                 */
                flags->bm_control = 0;
        }
-       if (c->x86_vendor == X86_VENDOR_AMD && c->x86 >= 0x17) {
+       if (cpu_feature_enabled(X86_FEATURE_ZEN)) {
                /*
                 * For all AMD Zen or newer CPUs that support C3, caches
                 * should not be flushed by software while entering C3