Subject: [PATCH 07/12] powerpc: Use of_get_cpu_hwid()

From: Rob Herring <[email-masked]>
Date: Wed, 6 Oct 2021 11:43:27 -0500

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

Cc: Michael Ellerman <[email-masked]>
Cc: Benjamin Herrenschmidt <[email-masked]>
Cc: Paul Mackerras <[email-masked]>
Cc: [email-masked]
Signed-off-by: Rob Herring <[email-masked]>
---
 arch/powerpc/kernel/smp.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 9cc7d3dbf439..d96b0e361a73 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -1313,18 +1313,13 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 int cpu_to_core_id(int cpu)
 {
 	struct device_node *np;
-	const __be32 *reg;
 	int id = -1;
 
 	np = of_get_cpu_node(cpu, NULL);
 	if (!np)
 		goto out;
 
-	reg = of_get_property(np, "reg", NULL);
-	if (!reg)
-		goto out;
-
-	id = be32_to_cpup(reg);
+	id = of_get_cpu_hwid(np, 0);
 out:
 	of_node_put(np);
 	return id;
-- 
2.30.2