ACPI / Processor: Remove setup_max_cpus check in acpi_processor_add

When maxcpus=X kernel argument is used, we parse the ACPI tables only for the first X cpus. The per-cpu ACPI data include the _PSD tables which gives information about related cpus.

cppc_cpufreq and acpi-cpufreq parses the table once during init to deduce the related cpus. If a user brings a new cpu online after boot the related cpu data becomes incorrect.

acpi_get_psd_map() in acpi_cppc.c returns error if it fails to find the parsed ACPI data for possible CPU resulting in cppc_cpufreq initialization failure.

With this change we will probe all possible CPUs prior to cpufreq initialization, but will bring only setup_max_cpus online. nr_cpus kernel parameter can be used to restict even parsing per-cpu ACPI tables.

---
 drivers/acpi/acpi_processor.c | 5 -----
 1 file changed, 5 deletions(-)

index 0143135..f098e25 100644
@@ -388,11 +388,6 @@ static int acpi_processor_add(struct acpi_device *device,
 	if (result) /* Processor is not physically present or unavailable */
 		return 0;
 
-#ifdef CONFIG_SMP
-	if (pr->id >= setup_max_cpus && pr->id != 0)
-		return 0;
-#endif
-
 	BUG_ON(pr->id >= nr_cpu_ids);
 
 	/*

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