Vladimir Oltean <olte...@gmail.com> writes:
> I've tried to collect and summarize the conclusions of these discussions:
> https://patchwork.ozlabs.org/project/netdev/patch/20200711120842.2631-1-sorga...@gmail.com/
> https://patchwork.ozlabs.org/project/netdev/patch/20200710113611.3398-5-k...@linutronix.de/
> which were a bit surprising to me. Make sure they are present in the
> documentation.
By the way, there is another somewhat related issue that needs to be
addressed. I believe kernel needs to free user space from this trick
found even in kernel sources themselves:
tools/testing/selftests/ptp/testptp.c:87:
static clockid_t get_clockid(int fd)
{
#define CLOCKFD 3
return (((unsigned int) ~fd) << 3) | CLOCKFD;
}
Once upon a time there was a patch for that, but I don't think it
addressed the issue correctly, here is more background:
https://lore.kernel.org/lkml/87y2pxvsbr....@osv.gnss.ru/
Thanks,
-- Sergey
