diff --git a/sys/compat/linuxkpi/common/include/linux/jiffies.h b/sys/compat/linuxkpi/common/include/linux/jiffies.h
--- a/sys/compat/linuxkpi/common/include/linux/jiffies.h
+++ b/sys/compat/linuxkpi/common/include/linux/jiffies.h
@@ -38,7 +38,7 @@
 
 #define	jiffies			ticks
 #define	jiffies_64		ticks
-#define	jiffies_to_msecs(x)     ((unsigned int)(((int64_t)(int)(x)) * 1000 / hz))
+#define	jiffies_to_msecs(x)     ((unsigned int)(((int64_t)(unsigned long)(x)) * 1000 / hz))
 
 #define	MAX_JIFFY_OFFSET	((INT_MAX >> 1) - 1)
 
@@ -68,7 +68,7 @@
 extern uint64_t lkpi_msec2hz_div;
 extern uint64_t lkpi_msec2hz_max;
 
-static inline int
+static inline unsigned long
 timespec_to_jiffies(const struct timespec *ts)
 {
 	u64 result;
@@ -78,10 +78,10 @@
 	if (result > MAX_JIFFY_OFFSET)
 		result = MAX_JIFFY_OFFSET;
 
-	return ((int)result);
+	return ((unsigned long)result);
 }
 
-static inline int
+static inline unsigned long
 msecs_to_jiffies(uint64_t msec)
 {
 	uint64_t result;
@@ -92,10 +92,10 @@
 	if (result > MAX_JIFFY_OFFSET)
 		result = MAX_JIFFY_OFFSET;
 
-	return ((int)result);
+	return ((unsigned long)result);
 }
 
-static inline int
+static inline unsigned long
 usecs_to_jiffies(uint64_t usec)
 {
 	uint64_t result;
@@ -106,7 +106,7 @@
 	if (result > MAX_JIFFY_OFFSET)
 		result = MAX_JIFFY_OFFSET;
 
-	return ((int)result);
+	return ((unsigned long)result);
 }
 
 static inline uint64_t
@@ -133,17 +133,17 @@
 }
 
 static inline uint64_t
-jiffies_to_nsecs(int j)
+jiffies_to_nsecs(const unsigned long j)
 {
 
-	return ((1000000000ULL / hz) * (uint64_t)(unsigned int)j);
+	return ((1000000000ULL / hz) * (const uint64_t)j);
 }
 
 static inline uint64_t
-jiffies_to_usecs(int j)
+jiffies_to_usecs(const unsigned long j)
 {
 
-	return ((1000000ULL / hz) * (uint64_t)(unsigned int)j);
+	return ((1000000ULL / hz) * (const uint64_t)j);
 }
 
 static inline uint64_t
@@ -153,10 +153,10 @@
 	return ((uint64_t)(unsigned int)ticks);
 }
 
-static inline int
-linux_timer_jiffies_until(int expires)
+static inline unsigned long
+linux_timer_jiffies_until(unsigned long expires)
 {
-	int delta = expires - jiffies;
+	unsigned long delta = expires - jiffies;
 	/* guard against already expired values */
 	if (delta < 1)
 		delta = 1;
diff --git a/sys/compat/linuxkpi/common/include/linux/timer.h b/sys/compat/linuxkpi/common/include/linux/timer.h
--- a/sys/compat/linuxkpi/common/include/linux/timer.h
+++ b/sys/compat/linuxkpi/common/include/linux/timer.h
@@ -42,7 +42,7 @@
 		void (*function_415) (struct timer_list *);
 	};
 	unsigned long data;
-	int expires;
+	unsigned long expires;
 };
 
 extern unsigned long linux_timer_hz_mask;
@@ -76,7 +76,7 @@
 	callout_init(&(timer)->callout, 1);			\
 } while (0)
 
-extern int mod_timer(struct timer_list *, int);
+extern int mod_timer(struct timer_list *, unsigned long);
 extern void add_timer(struct timer_list *);
 extern void add_timer_on(struct timer_list *, int cpu);
 extern int del_timer(struct timer_list *);
diff --git a/sys/compat/linuxkpi/common/src/linux_compat.c b/sys/compat/linuxkpi/common/src/linux_compat.c
--- a/sys/compat/linuxkpi/common/src/linux_compat.c
+++ b/sys/compat/linuxkpi/common/src/linux_compat.c
@@ -1938,7 +1938,7 @@
 }
 
 int
-mod_timer(struct timer_list *timer, int expires)
+mod_timer(struct timer_list *timer, unsigned long expires)
 {
 	int ret;