From 7597bc94d6f3bdccb086ac7f2ad91292fdaee2a4 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 5 Nov 2008 17:38:47 +0000 Subject: [PATCH] Fix accidental implicit cast in HR-timer conversion Fix the hrtimer_add_expires_ns() function. It should take a 'u64 ns' argument, but rather takes an 'unsigned long ns' argument - which might only be 32-bits. On FRV, this results in the kernel locking up because hrtimer_forward() passes the result of a 64-bit multiplication to this function, for which the compiler discards the top 32-bits - something that didn't happen when ktime_add_ns() was called directly. Signed-off-by: David Howells Acked-by: Arjan van de Ven Signed-off-by: Linus Torvalds --- include/linux/hrtimer.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 2b3645b1acf..07e510a3b00 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -239,7 +239,7 @@ static inline void hrtimer_add_expires(struct hrtimer *timer, ktime_t time) timer->_softexpires = ktime_add_safe(timer->_softexpires, time); } -static inline void hrtimer_add_expires_ns(struct hrtimer *timer, unsigned long ns) +static inline void hrtimer_add_expires_ns(struct hrtimer *timer, u64 ns) { timer->_expires = ktime_add_ns(timer->_expires, ns); timer->_softexpires = ktime_add_ns(timer->_softexpires, ns); -- 2.41.0