linux-kernel - Re: [PATCH v3 -next 11/11] serial: 8250_early: Remove setup_early_serial8250

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Date:	Thu, 2 Apr 2015 19:38:09 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Peter Hurley <peter@...leysoftware.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Slaby <jslaby@...e.cz>, Rob Herring <robh@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>
Subject: Re: [PATCH v3 -next 11/11] serial: 8250_early: Remove setup_early_serial8250_console()

On Thu, Apr 2, 2015 at 5:22 PM, Yinghai Lu <yinghai@...nel.org> wrote:

>>>> still have another problem.
>>>> when using console=uart8250,io,0x3f8
>>>> it works as earlycon at first.
>>>> but after handover to normal console
>>>> it will revert back to 9600 again.
>>>
>>> this regression should be caused by:
>>>
>>> commit c7cef0a84912cab3c9df8949b034e4aa62982ec9
>>> Author: Peter Hurley <peter@...leysoftware.com>
>>> Date:   Mon Mar 9 16:27:12 2015 -0400
>>>
>>>     console: Add extensible console matching
>>
> So your whole patchset will need the first patch ?
>
> or can you just drop the first one patch ?

Please check attached patch that fix regresion by. commit c7cef0a849
("console: Add extensible console matching")

or you have better way?

Thanks

Yinghai

View attachment "fix_earlycon_console_handover.patch" of type "text/x-patch" (5269 bytes)