From: Sergey Organov Date: Wed, 15 Jul 2020 15:42:58 +0000 (+0300) Subject: net: fec: initialize clock with 0 rather than current kernel time X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=199560343e9dac0e5f9e54307de767ef3fc781f4;p=linux.git net: fec: initialize clock with 0 rather than current kernel time Initializing with 0 makes it much easier to identify time stamps from otherwise uninitialized clock. Initialization of PTP clock with current kernel time makes little sense as PTP time scale differs from UTC time scale that kernel time represents. It only leads to confusion when no actual PTP initialization happens, as these time scales differ in a small integer number of seconds (37 at the time of writing.) Signed-off-by: Sergey Organov Acked-by: Fugang Duan Signed-off-by: Jakub Kicinski --- diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c index fda306b3e21fb..4bec7e66a39b2 100644 --- a/drivers/net/ethernet/freescale/fec_ptp.c +++ b/drivers/net/ethernet/freescale/fec_ptp.c @@ -264,7 +264,7 @@ void fec_ptp_start_cyclecounter(struct net_device *ndev) fep->cc.mult = FEC_CC_MULT; /* reset the ns time counter */ - timecounter_init(&fep->tc, &fep->cc, ktime_to_ns(ktime_get_real())); + timecounter_init(&fep->tc, &fep->cc, 0); spin_unlock_irqrestore(&fep->tmreg_lock, flags); }