linux-kernel - [PATCH V3 1/2] hil_mlc: convert timeval to time64

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Date:	Sat, 24 Oct 2015 12:00:18 +0800
From:	WEN Pingbo <pingbo.wen@...aro.org>
To:	arnd@...db.de
Cc:	y2038@...ts.linaro.org, dmitry.torokhov@...il.com,
	linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
	WEN Pingbo <pingbo.wen@...aro.org>
Subject: [PATCH V3 1/2] hil_mlc: convert timeval to time64_t

Since mlc->lcv_t is only interested in seconds,
directly using time64_t here

Signed-off-by: WEN Pingbo <pingbo.wen@...aro.org>
---

Version 2:
	Convert timeval to ktime_t
Version 3:
	Convert it to time64_t, since it's a better choice

 drivers/input/serio/hil_mlc.c | 8 +++-----
 include/linux/hil_mlc.h       | 2 +-
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index 65605e4..fb297aa 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -274,14 +274,12 @@ static int hilse_match(hil_mlc *mlc, int unused)
 /* An LCV used to prevent runaway loops, forces 5 second sleep when reset. */
 static int hilse_init_lcv(hil_mlc *mlc, int unused)
 {
-	struct timeval tv;
+	time64_t now = ktime_get_seconds();
 
-	do_gettimeofday(&tv);
-
-	if (mlc->lcv && (tv.tv_sec - mlc->lcv_tv.tv_sec) < 5)
+	if (mlc->lcv && (now - mlc->lcv_t) < 5)
 		return -1;
 
-	mlc->lcv_tv = tv;
+	mlc->lcv_t = now;
 	mlc->lcv = 0;
 
 	return 0;
diff --git a/include/linux/hil_mlc.h b/include/linux/hil_mlc.h
index 394a840..29bb5e3 100644
--- a/include/linux/hil_mlc.h
+++ b/include/linux/hil_mlc.h
@@ -149,7 +149,7 @@ struct hil_mlc {
 
 	int			ddi;	/* Last operational device id */
 	int			lcv;	/* LCV to throttle loops */
-	struct timeval		lcv_tv; /* Time loop was started */
+	time64_t		lcv_t; /* Time loop was started */
 
 	int			di_map[7]; /* Maps below items to live devs */
 	struct hil_mlc_devinfo	di[HIL_MLC_DEVMEM];
-- 
1.9.1

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