Re: [RFC PATCH v2 30/35] irqchip/gic-v3: Add support for ACPI's disabled but 'online capable' CPUs

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On 9/14/23 18:10, Russell King (Oracle) wrote:
On Wed, Sep 13, 2023 at 04:38:18PM +0000, James Morse wrote:
  static inline bool acpi_gicc_is_usable(struct acpi_madt_generic_interrupt *gicc)
  {
-	return (gicc->flags & ACPI_MADT_ENABLED);
+	return ((gicc->flags & ACPI_MADT_ENABLED ||
+		 gicc->flags & ACPI_MADT_GICC_CPU_CAPABLE));

... and this starts getting silly with the number of parens.

	return gicc->flags & ACPI_MADT_ENABLED ||
	       gicc->flags & ACPI_MADT_GICC_CPU_CAPABLE;

is entirely sufficient. Also:

	return gicc->flags & (ACPI_MADT_ENABLED | ACPI_MADT_GICC_CPU_CAPABLE);

also works.


vote for the second one, which is: gicc->flags & (ACPI_MADT_ENABLED | ACPI_MADT_GICC_CPU_CAPABLE)

Thanks,
Gavin




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