linux-kernel - RE: [PATCH v2 02/28] ACPICA: Linuxize: Replace __FUNCTION__ with __func_

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Message-ID: <1AE640813FDE7649BE1B193DEA596E8802733BFE@SHSMSX101.ccr.corp.intel.com>
Date:	Thu, 25 Jun 2015 00:24:50 +0000
From:	"Zheng, Lv" <lv.zheng@...el.com>
To:	Christoph Hellwig <hch@...radead.org>
CC:	"Wysocki, Rafael J" <rafael.j.wysocki@...el.com>,
	"Brown, Len" <len.brown@...el.com>, Lv Zheng <zetalog@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>
Subject: RE: [PATCH v2 02/28] ACPICA: Linuxize: Replace __FUNCTION__ with
 __func__.

Hi,

> From: Christoph Hellwig [mailto:hch@...radead.org]
> Sent: Wednesday, June 24, 2015 8:56 PM
> 
> On Wed, Jun 24, 2015 at 11:02:03AM +0800, Lv Zheng wrote:
> > ACPICA commit cb3d1c79f862cd368d749c9b8d9dced40111b0d0
> >
> > __FUNCTION__ is MSVC only, in Linux, it is __func__. Lv Zheng.
> >
> > In ACPICA, this is achieved by string replacement in release script and
> > this patch contains the source code difference between the Linux upstream
> > and ACPICA that is caused by the back porting.
> 
> __func__ is in C99 and never.  __FUNCTION__ is an old extension supported
> by various compilers.

This patch description is used in ACPICA upstream.
For ACPICA code base, __FUNCTION__ is only used for its MSVC builds.
And __func__ is converted from __FUNCTION__ by the linuxize release script.

See the original commit here:
https://github.com/acpica/acpica/commit/cb3d1c79

So this is simply an automated release output.
Without this merged, source code differences between Linux upstream and ACPICA upstream will hurt the automation.

Thanks and best regards
-Lv
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