path: root/drivers/watchdog
diff options
authorArnd Bergmann <arnd@arndb.de>2017-10-19 17:05:48 +0200
committerWim Van Sebroeck <wim@iguana.be>2017-12-28 20:45:12 +0100
commitb6c84c9ff3f48a476451eceb5e8478b8aadda8dc (patch)
tree1380904a407635423caf52480ad944b8c1d4c303 /drivers/watchdog
parentfb484262f9ef0d73e0116b942c114bc48c6c7b3b (diff)
watchdog: xen: use time64_t for timeouts
The Xen watchdog driver uses __kernel_time_t and ktime_to_timespec() internally for managing its timeouts. Both are deprecated because of y2038 problems. The driver itself is fine, since it only uses monotonic times, but converting it to use ktime_get_seconds() avoids the deprecated interfaces and is slightly simpler. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog')
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/watchdog/xen_wdt.c b/drivers/watchdog/xen_wdt.c
index cf0e650c2015..5dd5c3494d55 100644
--- a/drivers/watchdog/xen_wdt.c
+++ b/drivers/watchdog/xen_wdt.c
@@ -35,7 +35,7 @@
static struct platform_device *platform_device;
static DEFINE_SPINLOCK(wdt_lock);
static struct sched_watchdog wdt;
-static __kernel_time_t wdt_expires;
+static time64_t wdt_expires;
static bool is_active, expect_release;
#define WATCHDOG_TIMEOUT 60 /* in seconds */
@@ -49,15 +49,15 @@ module_param(nowayout, bool, S_IRUGO);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
-static inline __kernel_time_t set_timeout(void)
+static inline time64_t set_timeout(void)
wdt.timeout = timeout;
- return ktime_to_timespec(ktime_get()).tv_sec + timeout;
+ return ktime_get_seconds() + timeout;
static int xen_wdt_start(void)
- __kernel_time_t expires;
+ time64_t expires;
int err;
@@ -98,7 +98,7 @@ static int xen_wdt_stop(void)
static int xen_wdt_kick(void)
- __kernel_time_t expires;
+ time64_t expires;
int err;
@@ -222,7 +222,7 @@ static long xen_wdt_ioctl(struct file *file, unsigned int cmd,
return put_user(timeout, argp);
- retval = wdt_expires - ktime_to_timespec(ktime_get()).tv_sec;
+ retval = wdt_expires - ktime_get_seconds();
return put_user(retval, argp);

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