linux-kernel - Re: [PATCH v2 0/6] Remove the duplicated _MAT evaluation and simplify _acpi_map

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Message-ID: <1961453.53nfG0bXEh@vostro.rjw.lan>
Date:	Mon, 02 Sep 2013 14:12:22 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Hanjun Guo <hanjun.guo@...aro.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Tony Luck <tony.luck@...el.com>,
	Ingo Molnar <mingo@...hat.com>,
	Jiang Liu <jiang.liu@...wei.com>, linux-acpi@...r.kernel.org,
	x86@...nel.org, linux-ia64@...r.kernel.org,
	linux-kernel@...r.kernel.org, patches@...aro.org,
	linaro-kernel@...ts.linaro.org, linaro-acpi@...ts.linaro.org
Subject: Re: [PATCH v2 0/6] Remove the duplicated _MAT evaluation and simplify _acpi_map_lsapic()

On Monday, September 02, 2013 11:57:33 AM Hanjun Guo wrote:
> v1->v2: Return specific error value instead of just return -1, and
> correct some grammar mistake in changelog.
> 
> For cpu hot add, evaluate _MAT or parse MADT will did twice to get
> APIC id:
> acpi_processor_add()
> 	acpi_processor_get_info()
> 		acpi_get_cpuid() will evaluate _MAT or parse MADT;
>         acpi_processor_hotadd_init()
>                 acpi_map_lsapic() will evaluate _MAT again;
> 
> This patch set introduces apic_id in struct processor to save parsed
> APIC id, and use it to remove the duplicated _MAT evaluation.
> 
> Further more, the new logical cpu number will be generated in
> acpi_register_lapic(), this can be returned to remove the cpumask
> allocation and operation to simplify _acpi_map_lsapic().
> 
> There are also some cleanups for the ACPI processor dirver code.

I like the series, so I've queued it up for 3.13.

Thanks,
Rafael


> Hanjun Guo (2):
>   ACPI / processor: remove unnecessary if (!pr) check
>   ACPI / processor: Remove outdated comments
> 
> Jiang Liu (4):
>   ACPI / processor: Introduce apic_id in struct processor to save
>     parsed APIC id
>   ACPI / processor: use apic_id and remove duplicated _MAT evaluation
>   x86 / ACPI: simplify _acpi_map_lsapic()
>   ACPI / processor: remove some dead code in acpi_processor_get_info()
> 
>  arch/ia64/kernel/acpi.c       |   38 ++----------------
>  arch/x86/include/asm/mpspec.h |    2 +-
>  arch/x86/kernel/acpi/boot.c   |   88 +++++++++--------------------------------
>  arch/x86/kernel/apic/apic.c   |    8 ++--
>  drivers/acpi/acpi_processor.c |   22 +++--------
>  drivers/acpi/processor_core.c |   26 +++++++++---
>  include/acpi/processor.h      |    3 ++
>  include/linux/acpi.h          |    2 +-
>  8 files changed, 60 insertions(+), 129 deletions(-)
> 
> 
-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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