linux-kernel - Re: [PATCH v5 RESEND 1/5] ACPI: Add acpi_pr

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Message-ID: <1353341812.10939.52.camel@misato.fc.hp.com>
Date:	Mon, 19 Nov 2012 09:16:52 -0700
From:	Toshi Kani <toshi.kani@...com>
To:	Joe Perches <joe@...ches.com>
Cc:	linux-acpi@...r.kernel.org, rjw@...k.pl, lenb@...nel.org,
	linux-kernel@...r.kernel.org, bhelgaas@...gle.com,
	isimatu.yasuaki@...fujitsu.com, vijaymohan.pandarathil@...com,
	imammedo@...hat.com, prarit@...hat.com
Subject: Re: [PATCH v5 RESEND 1/5] ACPI: Add acpi_pr_<level>() interfaces

On Mon, 2012-11-19 at 08:06 -0800, Joe Perches wrote:
> On Mon, 2012-11-19 at 08:51 -0700, Toshi Kani wrote:
> > On Mon, 2012-11-19 at 00:56 -0800, Joe Perches wrote:
> > > is acpi_bus.h really the right file for these prototypes?
> > This interface is limited for ACPI, so it should be declared in a header
> > file under include/acpi.  Among the files in this directory, acpi_bus.h
> > seems to be a good fit as it declares the interfaces provided by ACPI
> > core.
> 
> I'd've put them in acpi.h or maybe created acpi_utils.h 

Hi Joe,

We cannot use acpi.h since it is an ACPICA header.  Creating
acpi_utils.h sounds good idea.  However, in line 40 of acpi_bus.h, it
has the following comment and declares multiple utility interfaces.

====
/* acpi_utils.h */
acpi_status
acpi_extract_package(union acpi_object *package,
                struct acpi_buffer *format, struct acpi_buffer *buffer);
  :
====

This looks to me that there was acpi_utils.h before, but someone had
merged it into acpi_bus.h for some reason.  This change was made before
the initial git repository was created, so I cannot check the change
log.  So, as of today, acpi_bus.h seems to be the place to declare ACPI
utility interfaces for ACPI core.

Thanks,
-Toshi 

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