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SubjectRe: [PATCH v2 1/7] ACPI / processor: remove cpu_index in acpi_processor_get_info()


On 05/05/15 03:46, Hanjun Guo wrote:
> Just use pr->id instead of cpu_index to simplify the code.
>

IIRC pr->id is u32, has it changed in any other patches that's not in
mainline ? Otherwise, comparing it with -1 makes no sense here.

Regards,
Sudeep

> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> ---
> drivers/acpi/acpi_processor.c | 9 ++++-----
> 1 file changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
> index 58f335c..d6ac918 100644
> --- a/drivers/acpi/acpi_processor.c
> +++ b/drivers/acpi/acpi_processor.c
> @@ -216,7 +216,7 @@ static int acpi_processor_get_info(struct acpi_device *device)
> struct acpi_buffer buffer = { sizeof(union acpi_object), &object };
> struct acpi_processor *pr = acpi_driver_data(device);
> phys_cpuid_t phys_id;
> - int cpu_index, device_declaration = 0;
> + int device_declaration = 0;
> acpi_status status = AE_OK;
> static int cpu0_initialized;
> unsigned long long value;
> @@ -268,17 +268,16 @@ static int acpi_processor_get_info(struct acpi_device *device)
> acpi_handle_debug(pr->handle, "failed to get CPU physical ID.\n");
> pr->phys_id = phys_id;
>
> - cpu_index = acpi_map_cpuid(pr->phys_id, pr->acpi_id);
> + pr->id = acpi_map_cpuid(pr->phys_id, pr->acpi_id);
> if (!cpu0_initialized && !acpi_has_cpu_in_madt()) {
> cpu0_initialized = 1;
> /*
> * Handle UP system running SMP kernel, with no CPU
> * entry in MADT
> */
> - if ((cpu_index == -1) && (num_online_cpus() == 1))
> - cpu_index = 0;
> + if ((pr->id == -1) && (num_online_cpus() == 1))
> + pr->id = 0;
> }
> - pr->id = cpu_index;
>
> /*
> * Extra Processor objects may be enumerated on MP systems with
>


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