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Message-ID: <CAL_JsqLYagdyFkRFJYsvx9hTEf3UiF2_f6x8mSzvW4_yNreYpQ@mail.gmail.com>
Date:	Wed, 22 Apr 2015 23:11:28 -0500
From:	Rob Herring <robh@...nel.org>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	David Howells <dhowells@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Kevin Cernekee <cernekee@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH] frv: add io{read,write}{16,32}be functions

On Mon, Apr 20, 2015 at 10:36 AM, Guenter Roeck <linux@...ck-us.net> wrote:
> These functions are used in various drivers, including the latest
> version of the 8250 driver. The latter causes the following build
> failure.
>
> drivers/tty/serial/8250/8250_core.c: In function 'mem32be_serial_out':
> drivers/tty/serial/8250/8250_core.c:456:2: error:
>                         implicit declaration of function 'iowrite32be'
> drivers/tty/serial/8250/8250_core.c: In function 'mem32be_serial_in':
> drivers/tty/serial/8250/8250_core.c:462:2: error:
>                         implicit declaration of function 'ioread32be'
>
> Cc: Kevin Cernekee <cernekee@...il.com>
> Cc: Rob Herring <robh@...nel.org>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Fixes: c627f2ceb692 ("serial: 8250: Add support for big-endian MMIO
>         accesses")
> Signed-off-by: Guenter Roeck <linux@...ck-us.net>
> ---
> Build failure seen in next-20150420.

Applied. Thanks.

Rob

>
>  arch/frv/include/asm/io.h | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/arch/frv/include/asm/io.h b/arch/frv/include/asm/io.h
> index 99bb7ef..0b78bc8 100644
> --- a/arch/frv/include/asm/io.h
> +++ b/arch/frv/include/asm/io.h
> @@ -342,6 +342,11 @@ static inline void iowrite32(u32 val, void __iomem *p)
>                 __flush_PCI_writes();
>  }
>
> +#define ioread16be(addr)       be16_to_cpu(ioread16(addr))
> +#define ioread32be(addr)       be32_to_cpu(ioread32(addr))
> +#define iowrite16be(v, addr)   iowrite16(cpu_to_be16(v), (addr))
> +#define iowrite32be(v, addr)   iowrite32(cpu_to_be32(v), (addr))
> +
>  static inline void ioread8_rep(void __iomem *p, void *dst, unsigned long count)
>  {
>         io_insb((unsigned long) p, dst, count);
> --
> 2.1.0
>
--
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