On Tue, Sep 09, 2014 at 12:52:55PM +0100, Markos Chandras wrote:
> Commit e676253b19b2d269cccf67fdb1592120a0cd0676
> (serial/8250: Add support for RS485 IOCTLs) added cases for the
> TIOC{S,G}RS485 commands but this broke the build for MIPS:
>
> drivers/tty/serial/8250/8250_core.c: In function 'serial8250_ioctl':
> drivers/tty/serial/8250/8250_core.c:2874:7: error: 'TIOCSRS485' undeclared
> (first use in this function)
> drivers/tty/serial/8250/8250_core.c:2886:7: error: 'TIOCGRS485' undeclared
> (first use in this function)
>
> This patch adds these missing definitions
>
> Cc: Ricardo Ribalda Delgado <ricardo.ribalda@xxxxxxxxx>
> Cc: <linux-next@xxxxxxxxxxxxxxx>
> Cc: <linux-kernel@xxxxxxxxxxxxxxx>
> Cc: <linux-serial@xxxxxxxxxxxxxxx>
> Signed-off-by: Markos Chandras <markos.chandras@xxxxxxxxxx>
> ---
> arch/mips/include/uapi/asm/ioctls.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/mips/include/uapi/asm/ioctls.h b/arch/mips/include/uapi/asm/ioctls.h
> index b1e637757fe3..34050cb6b631 100644
> --- a/arch/mips/include/uapi/asm/ioctls.h
> +++ b/arch/mips/include/uapi/asm/ioctls.h
> @@ -76,6 +76,8 @@
>
> #define TIOCSBRK 0x5427 /* BSD compatibility */
> #define TIOCCBRK 0x5428 /* BSD compatibility */
> +#define TIOCGRS485 0x542E
> +#define TIOCSRS485 0x542F
Any reason you aren't using the _IOR() type macros here?
thanks,
greg k-h
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