On Mon, Apr 20, 2015 at 10:37 AM, Guenter Roeck <li...@roeck-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 <cerne...@gmail.com>
> Cc: Rob Herring <r...@kernel.org>
> Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
> Fixes: c627f2ceb692 ("serial: 8250: Add support for big-endian MMIO
> accesses")
> Signed-off-by: Guenter Roeck <li...@roeck-us.net>
> ---
> Build failure seen in next-20150420.
Applied. Thanks.
Rob
>
> arch/mn10300/include/asm/io.h | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arch/mn10300/include/asm/io.h b/arch/mn10300/include/asm/io.h
> index 897ba3c..cc4a2ba 100644
> --- a/arch/mn10300/include/asm/io.h
> +++ b/arch/mn10300/include/asm/io.h
> @@ -197,6 +197,11 @@ static inline void outsl(unsigned long addr, const void
> *buffer, int count)
> #define iowrite16(v, addr) writew((v), (addr))
> #define iowrite32(v, addr) writel((v), (addr))
>
> +#define ioread16be(addr) be16_to_cpu(readw(addr))
> +#define ioread32be(addr) be32_to_cpu(readl(addr))
> +#define iowrite16be(v, addr) writew(cpu_to_be16(v), (addr))
> +#define iowrite32be(v, addr) writel(cpu_to_be32(v), (addr))
> +
> #define ioread8_rep(p, dst, count) \
> insb((unsigned long) (p), (dst), (count))
> #define ioread16_rep(p, dst, count) \
> --
> 2.1.0
>
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