linux-kernel - Re: [PATCH] ARM: sa1100: make sa1100_register_uart

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Message-ID: <133317017.7Cfvjc5WMX@wuerfel>
Date:	Thu, 25 Feb 2016 15:34:37 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ARM: sa1100: make sa1100_register_uart_fns a function

On Thursday 25 February 2016 14:18:44 Linus Walleij wrote:
> On Tue, Feb 23, 2016 at 3:34 PM, Arnd Bergmann <arnd@...db.de> wrote:
> 
> > Calling sa1100_register_uart_fns() leaves the port structure
> > unused when CONFIG_SERIAL_SA1100 is disabled, and we get a
> > compiler warning about that:
> >
> > arch/arm/mach-sa1100/badge4.c:317:31: warning: 'badge4_port_fns' defined but not used [-Wunused-variable]
> >  static struct sa1100_port_fns badge4_port_fns __initdata = {
> >
> > This turns the two empty macros into empty inline functions,
> > which has the same effect, but lets the compiler know that the
> > variables are intentionally unused.
> >
> > Signed-off-by: Arnd Bergmann <arnd@...db.de>
> 
> Acked-by: Linus Walleij <linus.walleij@...aro.org>
> 
> >  include/linux/platform_data/sa11x0-serial.h | 8 ++++++--
> 
> It looks like you should send this to Greg?

Yes, good point.

The file was traditionally under arch/arm (or include/asm-arm before
that), but considering it as part of the driver makes slightly
more sense now.

Sent out with a modified subject and your Ack to Greg now.

	Arnd