Re: [PATCH v9 2/2] tty/serial: Add Spreadtrum sc9836-uart driver support

From: Baruch Siach
Date: Wed Jan 28 2015 - 15:33:11 EST


Hi Lyra Zhang,

On Wed, Jan 28, 2015 at 04:46:33PM +0800, Lyra Zhang wrote:
> On Wed, Jan 28, 2015 at 2:12 PM, Baruch Siach <baruch@xxxxxxxxxx> wrote:
> > On Wed, Jan 28, 2015 at 10:47:41AM +0800, Chunyan Zhang wrote:
> >> + if (uart_handle_sysrq_char(port, ch))
> >> + continue;
> >
> > My comment[1] on a previous version of this patch still stands.
> > uart_handle_sysrq_char is a NOP when SUPPORT_SYSRQ is not defined.
>
> yes, there are two definitions in serial_core.h, and it returns 0 when
> SUPPORT_SYSRQ is not defined.
> so, I think my code behavior does not hurt, right?

Right. I just wanted to point out that you can easily define SUPPORT_SYSRQ as
appropriate like many other serial drivers do to get sysrq support.

baruch

--
http://baruch.siach.name/blog/ ~. .~ Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
- baruch@xxxxxxxxxx - tel: +972.2.679.5364, http://www.tkos.co.il -
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/