linux-kernel - Re: [PATCH v3 06/10] drivers/peci: Add a PECI adapter driver for Aspeed AST24xx/AST25xx

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Date:   Tue, 17 Apr 2018 11:21:13 -0700
From:   Jae Hyun Yoo <jae.hyun.yoo@...ux.intel.com>
To:     Robin Murphy <robin.murphy@....com>,
        Alan Cox <alan@...ux.intel.com>,
        Andrew Jeffery <andrew@...id.au>, Andrew Lunn <andrew@...n.ch>,
        Andy Shevchenko <andriy.shevchenko@...el.com>,
        Arnd Bergmann <arnd@...db.de>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Fengguang Wu <fengguang.wu@...el.com>,
        Greg KH <gregkh@...uxfoundation.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Haiyue Wang <haiyue.wang@...ux.intel.com>,
        James Feist <james.feist@...ux.intel.com>,
        Jason M Biils <jason.m.bills@...ux.intel.com>,
        Jean Delvare <jdelvare@...e.com>,
        Joel Stanley <joel@....id.au>,
        Julia Cartwright <juliac@....teric.us>,
        Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        Milton Miller II <miltonm@...ibm.com>,
        Pavel Machek <pavel@....cz>,
        Randy Dunlap <rdunlap@...radead.org>,
        Stef van Os <stef.van.os@...drive-technologies.com>,
        Sumeet R Pawnikar <sumeet.r.pawnikar@...el.com>,
        Vernon Mauery <vernon.mauery@...ux.intel.com>
Cc:     linux-hwmon@...r.kernel.org, devicetree@...r.kernel.org,
        linux-doc@...r.kernel.org, openbmc@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 06/10] drivers/peci: Add a PECI adapter driver for
 Aspeed AST24xx/AST25xx

Hi Robin,

On 4/17/2018 6:37 AM, Robin Murphy wrote:
> Just a drive-by nit:
> 
> On 10/04/18 19:32, Jae Hyun Yoo wrote:
> [...]
>> +#define PECI_CTRL_SAMPLING_MASK     GENMASK(19, 16)
>> +#define PECI_CTRL_SAMPLING(x)       (((x) << 16) & 
>> PECI_CTRL_SAMPLING_MASK)
>> +#define PECI_CTRL_SAMPLING_GET(x)   (((x) & PECI_CTRL_SAMPLING_MASK) 
>> >> 16)
> 
> FWIW, <linux/bitfield.h> already provides functionality like this, so it 
> might be worth taking a look at FIELD_{GET,PREP}() to save all these 
> local definitions.
> 
> Robin.

Yes, that looks better. Thanks a lot for your pointing it out.

Jae