linux-kernel - Re: [PATCH v2] serial/arc-uart: Add new driver

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Message-ID: <506BE4EB.4010904@synopsys.com>
Date:	Wed, 3 Oct 2012 12:40:35 +0530
From:	Vineet Gupta <Vineet.Gupta1@...opsys.com>
To:	Alan Cox <alan@...ux.intel.com>
CC:	<gregkh@...uxfoundation.org>, <linux-serial@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] serial/arc-uart: Add new driver

On Tuesday 02 October 2012 05:17 PM, Alan Cox wrote:
>> +/* Is this for UART emulation on ARC Instruction Set Simulator (ISS)
>> */ +int __attribute__((weak)) running_on_iss;
> Why not pass a quirks field in your platform data instead - much
> cleaner than a global.

I'd thought about it too. However the platform data is retrieved in
arc_uart_init_one() while it's usage in arc_serial_set_termios() will be
in a different call chain, meaning this info will have to be anyways
saved in "some" data structure - probably within struct arc_uart_port -
and that too per port - which is not clean either. However if you
strongly feel that the global is a must go - I can rework it that way.

thx,
-Vineet

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