From: James Clark <jjc@jclark.com>
To: Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@kernel.org>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>,
Jacob Keller <jacob.e.keller@intel.com>,
Kory Maincent <kory.maincent@bootlin.com>,
Siddharth Vadapalli <s-vadapalli@ti.com>,
Chintan Vankar <c-vankar@ti.com>, Aksh Garg <a-garg7@ti.com>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net] net: ethernet: ti: am65-cpts: fix support for PTP_EXTTS_REQUEST2 ioctl
Date: Tue, 20 Oct 2026 15:23:07 +0700 [thread overview]
Message-ID: <20261020082307.1267591-1-jjc@jclark.com> (raw)
In-Reply-To: <20261020003525.1237742-1-jjc@jclark.com>
On Tue, 20 Oct 2026 07:35:25 +0700, James Clark wrote:
> Commit 7c571ac57d9d ("net: ptp: introduce .supported_extts_flags to
> ptp_clock_info") modified the PTP core to validate the supported flags
> of external timestamp requests, rather than relying on each driver to
> check them.
>
> am65_cpts_extts_enable() ignores the flags, and am65-cpts was not given
> any .supported_extts_flags. Since PTP_EXTTS_REQUEST2 always implies
> PTP_STRICT_FLAGS, the core now rejects every PTP_EXTTS_REQUEST2 for this
> driver with -EOPNOTSUPP, where before that commit the same requests
> succeeded.
Adding Aksh Garg and Sebastian Andrzej Siewior, whom I missed on the Cc list.
The full patch is at
https://lore.kernel.org/all/20261020003525.1237742-1-jjc@jclark.com/
prev parent reply other threads:[~2026-10-20 8:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-20 0:35 [PATCH net] net: ethernet: ti: am65-cpts: fix support for PTP_EXTTS_REQUEST2 ioctl James Clark
2026-10-20 8:23 ` James Clark [this message]
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