linux-kernel - Re: [PATCH v3 2/4] tty/serial: at91: fix some macro definitions to fit coding style

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Date:	Thu, 2 Jul 2015 15:36:49 +0200
From:	Cyrille Pitchen <cyrille.pitchen@...el.com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	<nicolas.ferre@...el.com>, <gregkh@...uxfoundation.org>,
	<wenyou.yang@...el.com>, <ludovic.desroches@...el.com>,
	<leilei.zhao@...el.com>, <josh.wu@...el.com>,
	<alexandre.belloni@...e-electrons.com>,
	<linux-serial@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<devicetree@...r.kernel.org>, <galak@...eaurora.org>,
	<ijc+devicetree@...lion.org.uk>, <mark.rutland@....com>,
	<pawel.moll@....com>, <robh+dt@...nel.org>, <julia.lawall@...6.fr>
Subject: Re: [PATCH v3 2/4] tty/serial: at91: fix some macro definitions to
 fit coding style

Hi Arnd,

I've just sent a new series of patches to remove all those macros.
By the way, the patch dedicated to this update was created using coccinelle.
Based on Alexandre comment, I leave __raw_writel() and __raw_readl() for now.

Best Regards,

Cyrille

Le 30/06/2015 22:28, Arnd Bergmann a écrit :
> On Tuesday 30 June 2015 16:05:15 Cyrille Pitchen wrote:
>> +#define UART_PUT_CR(port, v)   __raw_writel(v, (port)->membase + ATMEL_US_CR)
>> +#define UART_GET_MR(port)      __raw_readl((port)->membase + ATMEL_US_MR)
>> +#define UART_PUT_MR(port, v)   __raw_writel(v, (port)->membase + ATMEL_US_MR)
>> +#define UART_PUT_IER(port, v)  __raw_writel(v, (port)->membase + ATMEL_US_IER)
>>
> 
> How about removing these macros entirely? I'm not aware of other drivers
> doing it like this, and it does not seem to add any value?
> 
> At the same time, you could use readl_relaxed() to make the driver
> endian-safe.
> 
> 	Arnd
> 

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