netdev - Re: [patch net-next 06/11] ACPI: bus: move acpi_match_device

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Date:	Fri, 13 May 2016 16:15:12 +0300
From:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:	Yisen Zhuang <Yisen.Zhuang@...wei.com>, davem@...emloft.net,
	rjw@...ysocki.net, lenb@...nel.org
Cc:	arnd@...db.de, andrew@...n.ch, geliangtang@....com,
	ivecera@...hat.com, fengguang.wu@...el.com,
	charles.chenxin@...wei.com, haifeng.wei@...wei.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	linuxarm@...wei.com
Subject: Re: [patch net-next 06/11] ACPI: bus: move acpi_match_device_ids()
 to linux/acpi.h

On Fri, 2016-05-13 at 16:19 +0800, Yisen Zhuang wrote:
> From: Hanjun Guo <hanjun.guo@...aro.org>
> 
> acpi_match_device_ids() will be used for drivers to match
> different hardware versions, it will be compiled in non-ACPI
> case, but acpi_match_device_ids() in acpi_bus.h and it can
> only be used in ACPI case, so move it to linux/acpi.h and
> introduce a stub function for it.

I somehow doubt this is right move.

Like I said in the previous comment the architectural split might make
this a bit better.

You might use 

#ifdef IS_ENABLED(CONFIG_ACPI)
#else
#endif

only once to some big part of code. If kernel is build without ACPI
support you even will not have this in your driver at all.

-- 
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Intel Finland Oy