linux-kernel - Re: PATCH] serial: convert early

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Message-ID: <86802c440705281050i1ef8e56ek74ebeb004afe3353@mail.gmail.com>
Date:	Mon, 28 May 2007 10:50:45 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Yinghai Lu" <Yinghai.Lu@....com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Andi Kleen" <ak@...e.de>, bjorn.helgaas@...com,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: PATCH] serial: convert early_uart to earlycon for 8250

On 5/28/07, Russell King <rmk+lkml@....linux.org.uk> wrote:
> I can't comment on the arch specific bits.  As a general note, I think
> this is over complex.  For instance, the additional hook in serial_core
> to call the find_port_for_earlycon method isn't needed because you can
> call serial8250_find_port_for_earlycon() from within
> serial8250_console_setup().  You can also modify co->index from
> within there without needing update_console_cmdline_console_index().

Good point, I will try to remove that hook.

>
> Bjorn needs to review the 8250_early changes.
>
> Apart from that, two other comments:
>
> On Tue, May 22, 2007 at 12:31:59PM -0700, Yinghai Lu wrote:
> > diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
> > index c84dab0..e341fb9 100644
> > --- a/drivers/serial/8250.c
> > +++ b/drivers/serial/8250.c
> > @@ -2402,6 +2405,7 @@ static void __init serial8250_isa_init_ports(void)
> >       for (i = 0, up = serial8250_ports;
> >            i < ARRAY_SIZE(old_serial_port) && i < nr_uarts;
> >            i++, up++) {
> > +             printk(KERN_INFO "serial8250_isa_init_ports 2  idx=%d\n",i);
>
> Is this a debugging printk?

Oh.

>
> >               up->port.iobase   = old_serial_port[i].port;
> >               up->port.irq      = irq_canonicalize(old_serial_port[i].irq);
> >               up->port.uartclk  = old_serial_port[i].baud_base * 16;
> > @@ -2533,7 +2537,7 @@ static int __init serial8250_console_init(void)
> >  }
> >  console_initcall(serial8250_console_init);
> >
> > -static int __init find_port(struct uart_port *p)
> > +int __init find_port_serial8250(struct uart_port *p)
>
> If this is going to become globally visible, please name it
> serial8250_find_port to match the style of the rest of the file.

I see.

YH
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