linux-kernel - Re: [PATCH] mISDN: avoid arch specific __builtin_return

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Message-ID: <1421169479.9233.25.camel@perches.com>
Date:	Tue, 13 Jan 2015 09:17:59 -0800
From:	Joe Perches <joe@...ches.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	isdn4linux@...tserv.isdn4linux.de, netdev@...r.kernel.org,
	Karsten Keil <isdn@...ux-pingi.de>, davem@...emloft.net,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mISDN: avoid arch specific __builtin_return_address call

On Tue, 2015-01-13 at 17:10 +0100, Arnd Bergmann wrote:
> Not all architectures are able to call __builtin_return_address().
> On ARM, the mISDN code produces this warning:
> 
> hardware/mISDN/w6692.c: In function 'w6692_dctrl':
> hardware/mISDN/w6692.c:1181:75: warning: unsupported argument to '__builtin_return_address'
>   pr_debug("%s: %s dev(%d) open from %p\n", card->name, __func__,

I didn't know that tidbit. Thanks.


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