[PATCH net-next V3 02/23] ptp: use the 64 bit gettime method for the SYS_OFFSET ioctl.
From: Richard Cochran <richardcochran@gmail.com>
Date: 2015-03-29 21:12:39
Also in:
lkml
Subsystem:
networking drivers, ptp hardware clock support, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Richard Cochran, Linus Torvalds
This patch changes the code to use the new method whenever implemented by the PHC driver. Signed-off-by: Richard Cochran <richardcochran@gmail.com> --- drivers/ptp/ptp_chardev.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/ptp/ptp_chardev.c b/drivers/ptp/ptp_chardev.c
index f8a7609..95bcf15 100644
--- a/drivers/ptp/ptp_chardev.c
+++ b/drivers/ptp/ptp_chardev.c@@ -124,7 +124,8 @@ long ptp_ioctl(struct posix_clock *pc, unsigned int cmd, unsigned long arg) struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock); struct ptp_clock_info *ops = ptp->info; struct ptp_clock_time *pct; - struct timespec ts; + struct timespec64 ts; + struct timespec t2; int enable, err = 0; unsigned int i, pin_index;
@@ -197,16 +198,21 @@ long ptp_ioctl(struct posix_clock *pc, unsigned int cmd, unsigned long arg) } pct = &sysoff->ts[0]; for (i = 0; i < sysoff->n_samples; i++) { - getnstimeofday(&ts); + getnstimeofday64(&ts); pct->sec = ts.tv_sec; pct->nsec = ts.tv_nsec; pct++; - ptp->info->gettime(ptp->info, &ts); + if (ptp->info->gettime64) { + ptp->info->gettime64(ptp->info, &ts); + } else { + ptp->info->gettime(ptp->info, &t2); + ts = timespec_to_timespec64(t2); + } pct->sec = ts.tv_sec; pct->nsec = ts.tv_nsec; pct++; } - getnstimeofday(&ts); + getnstimeofday64(&ts); pct->sec = ts.tv_sec; pct->nsec = ts.tv_nsec; if (copy_to_user((void __user *)arg, sysoff, sizeof(*sysoff)))
--
1.7.10.4