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Date: Sun, 7 Jan 2024 13:07:53 -0800
From: Richard Cochran <richardcochran@gmail.com>
To: Mahesh Bandewar =?utf-8?B?KOCkruCkueClh+CktiDgpKzgpILgpKHgpYfgpLXgpL4=?=
	=?utf-8?B?4KSwKQ==?= <maheshb@google.com>
Cc: Netdev <netdev@vger.kernel.org>, Linux <linux-kernel@vger.kernel.org>,
	David Miller <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Eric Dumazet <edumazet@google.com>, Paolo Abeni <pabeni@redhat.com>,
	Jonathan Corbet <corbet@lwn.net>, John Stultz <jstultz@google.com>,
	Don Hatchett <hatch@google.com>, Yuliang Li <yuliangli@google.com>,
	Mahesh Bandewar <mahesh@bandewar.net>,
	Willem de Bruijn <willemb@google.com>
Subject: Re: [PATCHv3 net-next 2/3] ptp: add ioctl interface for
 ptp_gettimex64any()
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On Sat, Jan 06, 2024 at 12:08:57AM -0800, Mahesh Bandewar (महेश बंडेवार) wrote:

> Having a general solution for posix timers is a nice addition.
> However, expecting a general purpose syscall to eliminate need for
> device ioctl is an unreasonable expectation.

Let me make this clear:

There is no reasonable justification for a new PTP ioctl.

The system call can and should use the the most accurate method
internally to the kernel.

Thanks,
Richard