Index: head/sys/compat/linuxkpi/common/include/linux/timer.h
===================================================================
--- head/sys/compat/linuxkpi/common/include/linux/timer.h	(revision 325706)
+++ head/sys/compat/linuxkpi/common/include/linux/timer.h	(revision 325707)
@@ -1,81 +1,81 @@
 /*-
  * Copyright (c) 2010 Isilon Systems, Inc.
  * Copyright (c) 2010 iX Systems, Inc.
  * Copyright (c) 2010 Panasas, Inc.
  * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice unmodified, this list of conditions, and the following
  *    disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * $FreeBSD$
  */
 #ifndef _LINUX_TIMER_H_
 #define	_LINUX_TIMER_H_
 
 #include <linux/types.h>
 
 #include <sys/param.h>
 #include <sys/kernel.h>
 #include <sys/callout.h>
 
 struct timer_list {
 	struct callout timer_callout;
 	void    (*function) (unsigned long);
 	unsigned long data;
 	int expires;
 };
 
 extern unsigned long linux_timer_hz_mask;
 
 #define	TIMER_IRQSAFE	0x0001
 
 #define	setup_timer(timer, func, dat) do {				\
 	(timer)->function = (func);					\
 	(timer)->data = (dat);						\
 	callout_init(&(timer)->timer_callout, 1);			\
 } while (0)
 
 #define	__setup_timer(timer, func, dat, flags) do {			\
 	CTASSERT(((flags) & ~TIMER_IRQSAFE) == 0);			\
 	setup_timer(timer, func, dat);					\
 } while (0)
 
 #define	init_timer(timer) do {						\
 	(timer)->function = NULL;					\
 	(timer)->data = 0;						\
 	callout_init(&(timer)->timer_callout, 1);			\
 } while (0)
 
 extern void mod_timer(struct timer_list *, int);
 extern void add_timer(struct timer_list *);
 extern void add_timer_on(struct timer_list *, int cpu);
 
-#define	del_timer(timer)	callout_stop(&(timer)->timer_callout)
-#define	del_timer_sync(timer)	callout_drain(&(timer)->timer_callout)
+#define	del_timer(timer)	(void)callout_stop(&(timer)->timer_callout)
+#define	del_timer_sync(timer)	(void)callout_drain(&(timer)->timer_callout)
 #define	timer_pending(timer)	callout_pending(&(timer)->timer_callout)
 #define	round_jiffies(j)	\
 	((int)(((j) + linux_timer_hz_mask) & ~linux_timer_hz_mask))
 #define	round_jiffies_relative(j) round_jiffies(j)
 #define	round_jiffies_up(j)	round_jiffies(j)
 #define	round_jiffies_up_relative(j) round_jiffies_up(j)
 
 #endif					/* _LINUX_TIMER_H_ */