linux-kernel - Re: [PATCH 1/4] ACPI: Add acpi_pr

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Date:	Wed, 18 Jul 2012 15:41:22 -0600
From:	Toshi Kani <toshi.kani@...com>
To:	Joe Perches <joe@...ches.com>
Cc:	lenb@...nel.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org, bhelgaas@...gle.com,
	isimatu.yasuaki@...fujitsu.com, liuj97@...il.com,
	srivatsa.bhat@...ux.vnet.ibm.com, prarit@...hat.com,
	imammedo@...hat.com, vijaymohan.pandarathil@...com
Subject: Re: [PATCH 1/4] ACPI: Add acpi_pr_<level>() interfaces

On Wed, 2012-07-18 at 14:21 -0700, Joe Perches wrote:
> On Wed, 2012-07-18 at 14:40 -0600, Toshi Kani wrote:
> > This patch introduces acpi_pr_<level>(), where <level> is a message
> > level such as err/warn/info, to support improved logging messages
> > for ACPI, esp. in hotplug operations.  acpi_pr_<level>() appends
> > "ACPI" prefix and ACPI object path to the messages.  This improves
> > diagnostics in hotplug operations since it identifies an object that
> > caused an issue in a log file.
> > 
> > acpi_pr_<level>() takes acpi_handle as an argument, which is passed
> > to ACPI hotplug notify handlers from the ACPI CA.  Therefore, it is
> > always available unlike other kernel objects, such as device.
> 
> Hi Toshi.
> 
> I'd be tempted to instead make the calls more like
> other <subsystem>_<level> uses and rename these to
> acpi_<level> and change the existing acpi_info to
> another name.

Hi Joe,

I agree with you.  Unfortunately, the ACPI CA (ACPI FW interpreter)
already uses them for its internal-use as follows, so I needed to come
up with some other name...  Hence, acpi_pr_<level>.

/*
 * Error reporting. Callers module and line number are inserted by
AE_INFO,
 * the plist contains a set of parens to allow variable-length lists.
 * These macros are used for both the debug and non-debug versions of
the code.
 */
#define ACPI_INFO(plist)                acpi_info plist
#define ACPI_WARNING(plist)             acpi_warning plist
#define ACPI_EXCEPTION(plist)           acpi_exception plist
#define ACPI_ERROR(plist)               acpi_error plist
#define ACPI_DEBUG_OBJECT(obj,l,i)      acpi_ex_do_debug_object(obj,l,i)

> Other than that, seems fine to me.

Great!  Can I consider it as Ack? :)

Thanks,
-Toshi

> cheers, Joe
> 

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