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Re: [Xen-devel] [PATCH] x86/idle: don't mix up ACPI and APIC IDs
- To: Jan Beulich <JBeulich@xxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Tue, 26 Jun 2018 11:54:03 +0100
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- Delivery-date: Tue, 26 Jun 2018 10:54:20 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Openpgp: preference=signencrypt
On 26/06/18 08:35, Jan Beulich wrote:
> Correct a log message and, to clarify code as well, rename the
> respective function parameter too.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>
> --- a/xen/arch/x86/acpi/cpu_idle.c
> +++ b/xen/arch/x86/acpi/cpu_idle.c
> @@ -1172,7 +1172,7 @@ static void print_cx_pminfo(uint32_t cpu
> #define print_cx_pminfo(c, p)
> #endif
>
> -long set_cx_pminfo(uint32_t cpu, struct xen_processor_power *power)
> +long set_cx_pminfo(uint32_t acpi_id, struct xen_processor_power *power)
> {
> XEN_GUEST_HANDLE(xen_processor_cx_t) states;
> xen_processor_cx_t xen_cx;
> @@ -1185,16 +1185,16 @@ long set_cx_pminfo(uint32_t cpu, struct
> if ( pm_idle_save && pm_idle != acpi_processor_idle )
> return 0;
>
> - print_cx_pminfo(cpu, power);
> + print_cx_pminfo(acpi_id, power);
>
> /* map from acpi_id to cpu_id */
You can drop this comment, seeing as it is completely redundant with the
next line.
Either way, Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> - cpu_id = get_cpu_id(cpu);
> + cpu_id = get_cpu_id(acpi_id);
> if ( cpu_id == -1 )
> {
> static bool warn_once = true;
>
> if ( warn_once || opt_cpu_info )
> - printk(XENLOG_WARNING "No CPU ID for APIC ID %#x\n", cpu);
> + printk(XENLOG_WARNING "No CPU for ACPI ID %#x\n", acpi_id);
> warn_once = false;
> return -EINVAL;
> }
>
>
>
>
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