Re: [PATCH v5 2/2] arch/x86: remove pci uart early console from early_prink.c

[Thomas Gleixner]

On Tue, 2 Jun 2015, Bin Gao wrote:
> On Tue, Jun 02, 2015 at 01:54:33PM +0200, Ingo Molnar wrote:
> > 
> > * Bin Gao <bin.gao@xxxxxxxxxxxxxxx> wrote:
> > 
> > > The arch independent uart8250 early console driver has good support for memory 
> > > mapped and io port based 8250 uarts. Since pci is arch independent so it's 
> > > natural to extend uart8250 to support mem, io and pci. Hence pci uart early 
> > > console in arch/x86/kernel_printk.c by the following commit: 'commit 
> > > 5140fda16051 ("Specify PCI based UART for earlyprintk")' is removed. And its 
> > > equivalent function will be available from uart8250 early console driver.
> > 
> > In what way have you tested this change, does serial-earlyprintk still work on x86 
> > after the change?
> > 
> > Thanks,
> > 
> > 	Ingo
> 
> Yes, this patch was tested with earlyprintk=serial,0x3f8 on my x86 box and
> the early console worked fine.

What about the memory mapped uarts which have been source of trouble
in the past?

Thanks,

	tglx
--
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/