On Tue, 19 May 2026 18:17:16 +0000 Arthur Kiyanovski wrote: > On 2026-05-18 18:26:46-07:00, Jakub Kicinski wrote: > > On Fri, 15 May 2026 16:40:20 +0000 Arthur Kiyanovski wrote: > > > > > This series adds quality attributes to PTP Hardware Clock (PHC) > > > timestamps, allowing userspace to obtain error bound, clock status, > > > timescale, and raw counter values alongside timestamps in a single > > > call. > > > > How does this proposal relate to: > > > > https://lore.kernel.org/all/[email protected]/ > > > > ? > The two series are independent and complementary. This patchset adds a > generic PTP subsystem interface for reporting quality attributes (error > bounds, clock status) alongside PHC timestamps — it's a userspace-facing > API extension. The RFC is about kernel-internal feed-forward clock > discipline, letting the timekeeping subsystem lock directly to a vmclock > reference. > > Both touch ptp_vmclock.c but in different code paths: this series adds a > gettimexattrs64 callback for PTP chardev ioctls, the RFC adds > timekeeping_set_reference() for kernel-internal clock steering. No > functional dependency or overlap.
I suspect David will agree, but it'd nonetheless be good to see his review tag on these patches.
