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authorKefeng Wang <wangkefeng.wang@huawei.com>2016-01-28 10:27:19 +0800
committerDavid S. Miller <davem@davemloft.net>2016-01-29 12:38:59 -0800
commitb83ef507d9e2bc25cea40b1fb13ebd1ca7c4969a (patch)
tree1ba15767135207cb9f9e1f682e84b1b58619dec6
parent21603fc45bdef3696f45d80a1c9d730e06b925c5 (diff)
downloadlinux-b83ef507d9e2bc25cea40b1fb13ebd1ca7c4969a.tar.bz2
ptp: ixp46x: use helpers for converting ns to timespec
Convert the driver to use ns_to_timespec64() and timespec64_to_ns() instead of open coding the same logic. Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/ptp/ptp_ixp46x.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/ptp/ptp_ixp46x.c b/drivers/ptp/ptp_ixp46x.c
index 934c139916c6..ee4f183ef9ee 100644
--- a/drivers/ptp/ptp_ixp46x.c
+++ b/drivers/ptp/ptp_ixp46x.c
@@ -178,7 +178,6 @@ static int ptp_ixp_adjtime(struct ptp_clock_info *ptp, s64 delta)
static int ptp_ixp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
{
u64 ns;
- u32 remainder;
unsigned long flags;
struct ixp_clock *ixp_clock = container_of(ptp, struct ixp_clock, caps);
struct ixp46x_ts_regs *regs = ixp_clock->regs;
@@ -189,8 +188,7 @@ static int ptp_ixp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
spin_unlock_irqrestore(&register_lock, flags);
- ts->tv_sec = div_u64_rem(ns, 1000000000, &remainder);
- ts->tv_nsec = remainder;
+ *ts = ns_to_timespec64(ns);
return 0;
}
@@ -202,8 +200,7 @@ static int ptp_ixp_settime(struct ptp_clock_info *ptp,
struct ixp_clock *ixp_clock = container_of(ptp, struct ixp_clock, caps);
struct ixp46x_ts_regs *regs = ixp_clock->regs;
- ns = ts->tv_sec * 1000000000ULL;
- ns += ts->tv_nsec;
+ ns = timespec64_to_ns(ts);
spin_lock_irqsave(&register_lock, flags);