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Date:	Mon, 5 Jan 2015 13:52:33 +0000
From:	Vineet Gupta <>
To:	Peter Hurley <>,
	Vineet Gupta <>,
	"" <>
CC:	"" <>,
	"" <>,
	"" <>,
	"" <>, Arnd Bergmann <>
Subject: Re: [PATCH v2 2/3] serial: 8250_early: prepare for dynamic BASE_BAUD

On Monday 05 January 2015 07:04 PM, Peter Hurley wrote:
>> Also what do u think of the early IER optimization ?
> Seems ok except the commit changelog is wrong: IER is disabled twice per _line_.
> How did you profile it? It's ok if the answer is "seemed faster"; I'm just
> curious.

Looking at the code yes this would be per line - but I vaguely remember seeing it
for every char - this was when debugging a systemC model for 8250. Its been a while...
I'd added prints in the model whenever IER would wiggle and it was just being
written with 0's again and again when in the early polling based printing mode.

I'll send a revised version with fixed changelog.

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