netdev - Re: [PATCH v4 3/4] Add PTP_SYS_OFFSET_PRECISE for driver crosstimestamping

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20151013135925.GB5422@localhost.localdomain>
Date:	Tue, 13 Oct 2015 15:59:26 +0200
From:	Richard Cochran <richardcochran@...il.com>
To:	"Christopher S. Hall" <christopher.s.hall@...el.com>
Cc:	jeffrey.t.kirsher@...el.com, hpa@...or.com, mingo@...hat.com,
	tglx@...utronix.de, john.stultz@...aro.org, peterz@...radead.org,
	x86@...nel.org, intel-wired-lan@...ts.osuosl.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	kevin.b.stanton@...el.com
Subject: Re: [PATCH v4 3/4] Add PTP_SYS_OFFSET_PRECISE for driver
 crosstimestamping

On Mon, Oct 12, 2015 at 11:45:21AM -0700, Christopher S. Hall wrote:
>  
> +struct ptp_sys_offset_precise {
> +	unsigned int rsv[4];    /* Reserved for future use. */
> +	struct ptp_clock_time dev;
> +	struct ptp_clock_time sys;
> +};
> +

Please put the reserved field at the bottom.  Also, since we reading
the raw monotonic time under the hood, we might as well return it in
this struct too.  It costs us almost nothing, and having that value
can be useful for characterizing the system oscillator.

Thanks,
Richard
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html