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Date:	Sun, 29 Mar 2015 23:11:53 +0200
From:	Richard Cochran <richardcochran@...il.com>
To:	<netdev@...r.kernel.org>
Cc:	<linux-kernel@...r.kernel.org>, Amir Vadai <amirv@...lanox.com>,
	Ariel Elior <ariel.elior@...gic.com>,
	Arnd Bergmann <arnd@...aro.org>,
	Baolin Wang <baolin.wang@...aro.org>,
	Ben Hutchings <ben@...adent.org.uk>,
	Bruce Allan <bruce.w.allan@...el.com>,
	Carolyn Wyborny <carolyn.wyborny@...el.com>,
	Chris Metcalf <cmetcalf@...hip.com>,
	David Miller <davem@...emloft.net>,
	Frank Li <Frank.Li@...escale.com>,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	Jacob Keller <jacob.e.keller@...el.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	John Stultz <john.stultz@...aro.org>,
	Luwei Zhou <b45643@...escale.com>,
	Matthew Vick <matthew.vick@...el.com>,
	Michael Chan <mchan@...adcom.com>,
	Prashant Sreedharan <prashant@...adcom.com>,
	Rayagond K <rayagond@...avyalabs.com>,
	Shradha Shah <sshah@...arflare.com>,
	Solarflare linux maintainers <linux-net-drivers@...arflare.com>,
	Sonic Zhang <sonic.zhang@...log.com>,
	Stefan Sørensen 
	<stefan.sorensen@...ctralink.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Tom Lendacky <thomas.lendacky@....com>
Subject: [PATCH net-next V3 03/23] ptp: use the 64 bit get/set time methods for the posix clock.

This patch changes the posix clock code to prefer the new methods
whenever they are implemented by the PHC drivers.

Signed-off-by: Richard Cochran <richardcochran@...il.com>
---
 drivers/ptp/ptp_clock.c |   19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c
index 296b0ec..df50d5e 100644
--- a/drivers/ptp/ptp_clock.c
+++ b/drivers/ptp/ptp_clock.c
@@ -107,13 +107,28 @@ static int ptp_clock_getres(struct posix_clock *pc, struct timespec *tp)
 static int ptp_clock_settime(struct posix_clock *pc, const struct timespec *tp)
 {
 	struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock);
-	return ptp->info->settime(ptp->info, tp);
+	struct timespec64 ts = timespec_to_timespec64(*tp);
+
+	return  ptp->info->settime64 ?
+		ptp->info->settime64(ptp->info, &ts) :
+		ptp->info->settime(ptp->info, tp);
 }
 
 static int ptp_clock_gettime(struct posix_clock *pc, struct timespec *tp)
 {
 	struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock);
-	return ptp->info->gettime(ptp->info, tp);
+	struct timespec64 ts;
+	int err;
+
+	if (ptp->info->gettime64) {
+		err = ptp->info->gettime64(ptp->info, &ts);
+		if (!err)
+			*tp = timespec64_to_timespec(ts);
+	} else {
+		err = ptp->info->gettime(ptp->info, tp);
+	}
+
+	return err;
 }
 
 static int ptp_clock_adjtime(struct posix_clock *pc, struct timex *tx)
-- 
1.7.10.4

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