netdev - RE: [PATCH net-next 02/18] liquidio support for new device cn23xx

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Message-ID: <CO2PR11MB0088EF589259501F4BE5970497070@CO2PR11MB0088.namprd11.prod.outlook.com>
Date:	Thu, 4 Aug 2016 18:12:56 +0000
From:	Yuval Mintz <Yuval.Mintz@...gic.com>
To:	Raghu Vatsavayi <rvatsavayi@...iumnetworks.com>,
	David Miller <davem@...emloft.net>
CC:	netdev <netdev@...r.kernel.org>,
	Derek Chickles <derek.chickles@...iumnetworks.com>,
	Satanand Burla <satananda.burla@...iumnetworks.com>,
	Felix Manlunas <felix.manlunas@...iumnetworks.com>,
	Raghu Vatsavayi <raghu.vatsavayi@...iumnetworks.com>
Subject: RE: [PATCH net-next  02/18] liquidio support for new device cn23xx

> +		vdata->major =
> cpu_to_be16(LIQUIDIO_BASE_MAJOR_VERSION);
> +		vdata->minor =
> cpu_to_be16(LIQUIDIO_BASE_MINOR_VERSION);
> +		vdata->micro =
> cpu_to_be16(LIQUIDIO_BASE_MICRO_VERSION);
Will probably add sparse warnings.

> +#define LIO_STR_HELPER(x)	#x
> +#define LIO_STR(x)	LIO_STR_HELPER(x)
This is basically __stringify()

> +struct lio_version {
> +	u64  major:16;
> +	u64  minor:16;
> +	u64  micro:16;
> +	u64  reserved:16;
> +};
You probably want those typed, not merely bits out of u64.
But even if you didn't, what's the benefit this has over u16s?