[PATCH 10/12] x86: dt: Use of_get_cpu_hwid()

[Rob Herring]

Replace open coded parsing of CPU nodes' 'reg' property with
of_get_cpu_hwid().

Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Ingo Molnar <mi...@redhat.com>
Cc: Borislav Petkov <b...@alien8.de>
Cc: x...@kernel.org
Cc: "H. Peter Anvin" <h...@zytor.com>
Signed-off-by: Rob Herring <r...@kernel.org>
---
 arch/x86/kernel/devicetree.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 6a4cb71c2498..3aa1e99df2a9 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -139,12 +139,11 @@ static void __init dtb_cpu_setup(void)
 {
        struct device_node *dn;
        u32 apic_id, version;
-       int ret;
 
        version = GET_APIC_VERSION(apic_read(APIC_LVR));
        for_each_of_cpu_node(dn) {
-               ret = of_property_read_u32(dn, "reg", &apic_id);
-               if (ret < 0) {
+               apic_id = of_get_cpu_hwid(dn, 0);
+               if (apic_id == ~0U) {
                        pr_warn("%pOF: missing local APIC ID\n", dn);
                        continue;
                }
-- 
2.30.2