linux-kernel - Re: [PATCH] of: drop symbols declared by _OF

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Date:	Thu, 14 Jan 2016 11:14:58 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Masahiro Yamada <yamada.masahiro@...ionext.com>,
	devicetree@...r.kernel.org,
	Peter Hurley <peter@...leysoftware.com>,
	linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
	Grant Likely <grant.likely@...aro.org>,
	Frank Rowand <frowand.list@...il.com>
Subject: Re: [PATCH] of: drop symbols declared by _OF_DECLARE() from modules

On Thursday 14 January 2016 13:33:06 Masahiro Yamada wrote:
> 
> -#ifdef CONFIG_OF
> +#if defined(CONFIG_OF) && !defined(MODULE)
>  #define _OF_DECLARE(table, name, compat, fn, fn_type)                  \
>         static const struct of_device_id __of_table_##name              \
>                 __used __section(__##table##_of_table)                  \
> -- 
> 

Doesn't this lead to "unused function" warnings? Maybe we can change the "__used"
into "__unused" when MODULE is set, so the compiler will automatically
drop all code that is only referenced from the entry.

	Arnd