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From: Richard Cochran <richardcochran@gmail.com>
To: "Keller, Jacob E" <jacob.e.keller@intel.com>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	Intel Wired LAN <intel-wired-lan@lists.osuosl.org>,
	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@intel.com>,
	Brandon Streiff <brandon.streiff@ni.com>
Subject: Re: [net-next v3 3/7] mv88e6xxx: reject unsupported external timestamp flags
Date: Sat, 12 Oct 2019 16:27:19 -0700
Message-ID: <20191012232719.GA7148@localhost> (raw)
In-Reply-To: <02874ECE860811409154E81DA85FBB5896926B0B@ORSMSX121.amr.corp.intel.com>

On Sat, Oct 12, 2019 at 07:36:31PM +0000, Keller, Jacob E wrote:
> Right, so in practice, unless it supports both edges, it should reject setting both RISING and FALLING together.

Enforcing that now *could* break existing user space, but I wonder
whether any programs would actually be affected.

Maybe we can add a STRICT flag than requests strict checking.  If user
space uses the "2" ioctl, then we would add this flag before invoking
the driver callback.

Thanks,
Richard

  reply index

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-26 18:11 [net-next v3 0/7] new PTP ioctl fixes Jacob Keller
2019-09-26 18:11 ` [net-next v3 1/7] ptp: correctly disable flags on old ioctls Jacob Keller
2019-10-11  1:03   ` Brown, Aaron F
2019-09-26 18:11 ` [net-next v3 2/7] net: reject PTP periodic output requests with unsupported flags Jacob Keller
2019-10-11  1:05   ` Brown, Aaron F
2019-10-12 18:08   ` Richard Cochran
2019-09-26 18:11 ` [net-next v3 3/7] mv88e6xxx: reject unsupported external timestamp flags Jacob Keller
2019-10-12 18:24   ` Richard Cochran
2019-10-12 19:36     ` Keller, Jacob E
2019-10-12 23:27       ` Richard Cochran [this message]
2019-10-14 17:20         ` Keller, Jacob E
2019-09-26 18:11 ` [net-next v3 4/7] dp83640: " Jacob Keller
2019-10-12 18:28   ` Richard Cochran
2019-09-26 18:11 ` [net-next v3 5/7] igb: " Jacob Keller
2019-10-11  0:57   ` [Intel-wired-lan] " Brown, Aaron F
2019-10-12 18:31   ` Richard Cochran
2019-09-26 18:11 ` [net-next v3 6/7] mlx5: " Jacob Keller
2019-10-12 18:36   ` Richard Cochran
2019-09-26 18:11 ` [net-next v3 7/7] renesas: " Jacob Keller
2019-09-27 16:22   ` Sergei Shtylyov
2019-10-12 18:38   ` Richard Cochran
2019-09-27 18:29 ` [net-next v3 0/7] new PTP ioctl fixes David Miller
2019-09-27 22:16   ` Keller, Jacob E

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