[PATCH 10/12] x86: dt: Use of_get_cpu_hwid()
Rob Herring
robh at kernel.org
Wed Oct 6 09:43:30 PDT 2021
Replace open coded parsing of CPU nodes' 'reg' property with
of_get_cpu_hwid().
Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: Ingo Molnar <mingo at redhat.com>
Cc: Borislav Petkov <bp at alien8.de>
Cc: x86 at kernel.org
Cc: "H. Peter Anvin" <hpa at zytor.com>
Signed-off-by: Rob Herring <robh at 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
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