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powerpc: Use of_get_cpu_hwid()

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

Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211006164332.1981454-8-robh@kernel.org
This commit is contained in:
Rob Herring 2021-10-06 11:43:27 -05:00
parent 4e0fa9eeb1
commit 41408b22ec
1 changed files with 1 additions and 6 deletions
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7
arch/powerpc/kernel/smp.c
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@ -1313,18 +1313,13 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
int cpu_to_core_id(int cpu) int cpu_to_core_id(int cpu)
{ {
struct device_node *np; struct device_node *np;
const __be32 *reg;
int id = -1; int id = -1;
np = of_get_cpu_node(cpu, NULL); np = of_get_cpu_node(cpu, NULL);
if (!np) if (!np)
goto out; goto out;
reg = of_get_property(np, "reg", NULL); id = of_get_cpu_hwid(np, 0);
if (!reg)
goto out;
id = be32_to_cpup(reg);
out: out:
of_node_put(np); of_node_put(np);
return id; return id;