Re: [PATCH v7 02/16] cpu: Do not warn on arch_register_cpu() returning -EPROBE_DEFER

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On 2024/4/18 21:53, Jonathan Cameron wrote:
For arm64 the CPU registration cannot complete until the ACPI
interpreter us up and running so in those cases the arch specific
arch_register_cpu() will return -EPROBE_DEFER at this stage and the
registration will be attempted later.

Suggested-by: Rafael J. Wysocki <rafael@xxxxxxxxxx>
Acked-by: Rafael J. Wysocki <rafael@xxxxxxxxxx>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>

v7: Fix condition to not print the error message of success (thanks Russell!)
  drivers/base/cpu.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 56fba44ba391..7b83e9c87d7c 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -558,7 +558,7 @@ static void __init cpu_dev_register_generic(void)
for_each_present_cpu(i) {
  		ret = arch_register_cpu(i);
-		if (ret)
+		if (ret && ret != -EPROBE_DEFER)
  			pr_warn("register_cpu %d failed (%d)\n", i, ret);

Reviewed-by: Hanjun Guo <guohanjun@xxxxxxxxxx>


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