diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c
index eca248d..3e14b13 100644
--- a/arch/arm/kernel/ecard.c
+++ b/arch/arm/kernel/ecard.c
@@ -295,7 +295,7 @@
  */
 static void ecard_call(struct ecard_request *req)
 {
-	DECLARE_COMPLETION(completion);
+	DECLARE_COMPLETION_ONSTACK(completion);
 
 	req->complete = &completion;
 
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index 82b26d5..0831f70 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -1061,7 +1061,7 @@
 
 static int __cpuinit __smp_prepare_cpu(int cpu)
 {
-	DECLARE_COMPLETION(done);
+	DECLARE_COMPLETION_ONSTACK(done);
 	struct warm_boot_cpu_info info;
 	struct work_struct task;
 	int	apicid, ret;
diff --git a/arch/powerpc/platforms/powermac/cpufreq_64.c b/arch/powerpc/platforms/powermac/cpufreq_64.c
index d30466d..9d22361 100644
--- a/arch/powerpc/platforms/powermac/cpufreq_64.c
+++ b/arch/powerpc/platforms/powermac/cpufreq_64.c
@@ -104,7 +104,7 @@
 {
 	struct smu_simple_cmd	cmd;
 
-	DECLARE_COMPLETION(comp);
+	DECLARE_COMPLETION_ONSTACK(comp);
 	smu_queue_simple(&cmd, SMU_CMD_POWER_COMMAND, 8, smu_done_complete,
 			 &comp, 'V', 'S', 'L', 'E', 'W',
 			 0xff, g5_fvt_cur+1, speed_mode);
diff --git a/arch/powerpc/platforms/powermac/nvram.c b/arch/powerpc/platforms/powermac/nvram.c
index 6a36ea9..692945c1 100644
--- a/arch/powerpc/platforms/powermac/nvram.c
+++ b/arch/powerpc/platforms/powermac/nvram.c
@@ -195,7 +195,7 @@
 static unsigned char pmu_nvram_read_byte(int addr)
 {
 	struct adb_request req;
-	DECLARE_COMPLETION(req_complete); 
+	DECLARE_COMPLETION_ONSTACK(req_complete);
 	
 	req.arg = system_state == SYSTEM_RUNNING ? &req_complete : NULL;
 	if (pmu_request(&req, pmu_nvram_complete, 3, PMU_READ_NVRAM,
@@ -211,7 +211,7 @@
 static void pmu_nvram_write_byte(int addr, unsigned char val)
 {
 	struct adb_request req;
-	DECLARE_COMPLETION(req_complete); 
+	DECLARE_COMPLETION_ONSTACK(req_complete);
 	
 	req.arg = system_state == SYSTEM_RUNNING ? &req_complete : NULL;
 	if (pmu_request(&req, pmu_nvram_complete, 4, PMU_WRITE_NVRAM,
diff --git a/block/as-iosched.c b/block/as-iosched.c
index 165509e..50b95e4c 100644
--- a/block/as-iosched.c
+++ b/block/as-iosched.c
@@ -1479,7 +1479,7 @@
 
 static void __exit as_exit(void)
 {
-	DECLARE_COMPLETION(all_gone);
+	DECLARE_COMPLETION_ONSTACK(all_gone);
 	elv_unregister(&iosched_as);
 	ioc_gone = &all_gone;
 	/* ioc_gone's update must be visible before reading ioc_count */
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 99116e2..d3d7613 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -2160,7 +2160,7 @@
 
 static void __exit cfq_exit(void)
 {
-	DECLARE_COMPLETION(all_gone);
+	DECLARE_COMPLETION_ONSTACK(all_gone);
 	elv_unregister(&iosched_cfq);
 	ioc_gone = &all_gone;
 	/* ioc_gone's update must be visible before reading ioc_count */
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 2568640..b3f639f 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -770,7 +770,7 @@
 static void DAC960_ExecuteCommand(DAC960_Command_T *Command)
 {
   DAC960_Controller_T *Controller = Command->Controller;
-  DECLARE_COMPLETION(Completion);
+  DECLARE_COMPLETION_ONSTACK(Completion);
   unsigned long flags;
   Command->Completion = &Completion;
 
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index d2d45ea..99f87ef 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -879,7 +879,7 @@
 			char *buff = NULL;
 			u64bit temp64;
 			unsigned long flags;
-			DECLARE_COMPLETION(wait);
+			DECLARE_COMPLETION_ONSTACK(wait);
 
 			if (!arg)
 				return -EINVAL;
@@ -997,7 +997,7 @@
 			BYTE sg_used = 0;
 			int status = 0;
 			int i;
-			DECLARE_COMPLETION(wait);
+			DECLARE_COMPLETION_ONSTACK(wait);
 			__u32 left;
 			__u32 sz;
 			BYTE __user *data_ptr;
@@ -1816,7 +1816,7 @@
 	u64bit buff_dma_handle;
 	unsigned long flags;
 	int return_status;
-	DECLARE_COMPLETION(wait);
+	DECLARE_COMPLETION_ONSTACK(wait);
 
 	if ((c = cmd_alloc(h, 0)) == NULL)
 		return -ENOMEM;
diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c
index 05f79d7..bb15051 100644
--- a/drivers/block/cciss_scsi.c
+++ b/drivers/block/cciss_scsi.c
@@ -766,7 +766,7 @@
 			int direction)
 {
 	unsigned long flags;
-	DECLARE_COMPLETION(wait);
+	DECLARE_COMPLETION_ONSTACK(wait);
 
 	cp->cmd_type = CMD_IOCTL_PEND;		// treat this like an ioctl 
 	cp->scsi_cmd = NULL;
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index 38578b9..40a11e5 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -713,7 +713,7 @@
 static int pd_special_command(struct pd_unit *disk,
 		      enum action (*func)(struct pd_unit *disk))
 {
-	DECLARE_COMPLETION(wait);
+	DECLARE_COMPLETION_ONSTACK(wait);
 	struct request rq;
 	int err = 0;
 
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 888d1ac..a6b2aa6 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -348,7 +348,7 @@
 	char sense[SCSI_SENSE_BUFFERSIZE];
 	request_queue_t *q;
 	struct request *rq;
-	DECLARE_COMPLETION(wait);
+	DECLARE_COMPLETION_ONSTACK(wait);
 	int err = 0;
 
 	q = bdev_get_queue(pd->bdev);
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 2ebc376..e2f4bb5 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -2764,7 +2764,7 @@
  */
 static void idetape_wait_for_request (ide_drive_t *drive, struct request *rq)
 {
-	DECLARE_COMPLETION(wait);
+	DECLARE_COMPLETION_ONSTACK(wait);
 	idetape_tape_t *tape = drive->driver_data;
 
 #if IDETAPE_DEBUG_BUGS
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index 090e40f..c0f9d82 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -870,7 +870,7 @@
 
 static int smu_read_datablock(u8 *dest, unsigned int addr, unsigned int len)
 {
-	DECLARE_COMPLETION(comp);
+	DECLARE_COMPLETION_ONSTACK(comp);
 	unsigned int chunk;
 	struct smu_cmd cmd;
 	int rc;
@@ -917,7 +917,7 @@
 
 static struct smu_sdbp_header *smu_create_sdb_partition(int id)
 {
-	DECLARE_COMPLETION(comp);
+	DECLARE_COMPLETION_ONSTACK(comp);
 	struct smu_simple_cmd cmd;
 	unsigned int addr, len, tlen;
 	struct smu_sdbp_header *hdr;
diff --git a/drivers/macintosh/windfarm_smu_controls.c b/drivers/macintosh/windfarm_smu_controls.c
index bff1f37..31b750d 100644
--- a/drivers/macintosh/windfarm_smu_controls.c
+++ b/drivers/macintosh/windfarm_smu_controls.c
@@ -56,7 +56,7 @@
 {
 	struct smu_cmd cmd;
 	u8 buffer[16];
-	DECLARE_COMPLETION(comp);
+	DECLARE_COMPLETION_ONSTACK(comp);
 	int rc;
 
 	/* Fill SMU command structure */
diff --git a/drivers/macintosh/windfarm_smu_sensors.c b/drivers/macintosh/windfarm_smu_sensors.c
index defe992..01b4c50 100644
--- a/drivers/macintosh/windfarm_smu_sensors.c
+++ b/drivers/macintosh/windfarm_smu_sensors.c
@@ -67,7 +67,7 @@
 static int smu_read_adc(u8 id, s32 *value)
 {
 	struct smu_simple_cmd	cmd;
-	DECLARE_COMPLETION(comp);
+	DECLARE_COMPLETION_ONSTACK(comp);
 	int rc;
 
 	rc = smu_queue_simple(&cmd, SMU_CMD_READ_ADC, 1,
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 7cafa34..4d2bc79 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -301,7 +301,7 @@
 		       int use_timer)
 {
 	int ret;
-	DECLARE_COMPLETION(wait);
+	DECLARE_COMPLETION_ONSTACK(wait);
 
 	scpnt->SCp.ptr = (void *) &wait;  /* silent re-use */
 	scpnt->scsi_done = zfcp_scsi_command_sync_handler;
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index 657a3ab..15ce40a 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -1939,7 +1939,7 @@
 STATIC int
 NCR_700_bus_reset(struct scsi_cmnd * SCp)
 {
-	DECLARE_COMPLETION(complete);
+	DECLARE_COMPLETION_ONSTACK(complete);
 	struct NCR_700_Host_Parameters *hostdata = 
 		(struct NCR_700_Host_Parameters *)SCp->device->host->hostdata[0];
 
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index c7eeace..1faa008 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -646,7 +646,7 @@
 	struct	ahd_initiator_tinfo *tinfo;
 	struct	ahd_tmode_tstate *tstate;
 	unsigned long flags;
-	DECLARE_COMPLETION(done);
+	DECLARE_COMPLETION_ONSTACK(done);
 
 	reset_scb = NULL;
 	paused = FALSE;
@@ -2251,7 +2251,7 @@
 	if (paused)
 		ahd_unpause(ahd);
 	if (wait) {
-		DECLARE_COMPLETION(done);
+		DECLARE_COMPLETION_ONSTACK(done);
 
 		ahd->platform_data->eh_done = &done;
 		ahd_unlock(ahd, &flags);
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index 64c8b88..339b85c 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -2335,7 +2335,7 @@
 	if (paused)
 		ahc_unpause(ahc);
 	if (wait) {
-		DECLARE_COMPLETION(done);
+		DECLARE_COMPLETION_ONSTACK(done);
 
 		ahc->platform_data->eh_done = &done;
 		ahc_unlock(ahc, &flags);
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index 43afd47..0f3eb22 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -724,7 +724,7 @@
                    int timeout, u32 *info)
 {
     Scsi_Cmnd *scp;
-    DECLARE_COMPLETION(wait);
+    DECLARE_COMPLETION_ONSTACK(wait);
     int rval;
 
     scp = kmalloc(sizeof(*scp), GFP_KERNEL);
@@ -764,7 +764,7 @@
 {
     Scsi_Cmnd *scp = scsi_allocate_device(sdev, 1, FALSE);
     unsigned bufflen = gdtcmd ? sizeof(gdth_cmd_str) : 0;
-    DECLARE_COMPLETION(wait);
+    DECLARE_COMPLETION_ONSTACK(wait);
     int rval;
 
     if (!scp)
diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index 8953991..332151e 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -813,7 +813,7 @@
 	uint16_t data;
 	unsigned char *handle;
 	int result, i;
-	DECLARE_COMPLETION(wait);
+	DECLARE_COMPLETION_ONSTACK(wait);
 	struct timer_list timer;
 
 	ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata);
@@ -2406,7 +2406,7 @@
 	uint16_t *optr, *iptr;
 	uint16_t __iomem *mptr;
 	uint16_t data;
-	DECLARE_COMPLETION(wait);
+	DECLARE_COMPLETION_ONSTACK(wait);
 	struct timer_list timer;
 
 	ENTER("qla1280_mailbox_command");
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index 4655522..4a000d8 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -342,7 +342,7 @@
 static ssize_t
 ep_io (struct ep_data *epdata, void *buf, unsigned len)
 {
-	DECLARE_COMPLETION (done);
+	DECLARE_COMPLETION_ONSTACK (done);
 	int value;
 
 	spin_lock_irq (&epdata->dev->lock);
diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c
index 0a64504..8c18df8 100644
--- a/drivers/usb/gadget/omap_udc.c
+++ b/drivers/usb/gadget/omap_udc.c
@@ -2869,7 +2869,7 @@
 
 static int __exit omap_udc_remove(struct platform_device *pdev)
 {
-	DECLARE_COMPLETION(done);
+	DECLARE_COMPLETION_ONSTACK(done);
 
 	if (!udc)
 		return -ENODEV;
diff --git a/net/ipv4/ipvs/ip_vs_sync.c b/net/ipv4/ipvs/ip_vs_sync.c
index 6ab57d7..91a075e 100644
--- a/net/ipv4/ipvs/ip_vs_sync.c
+++ b/net/ipv4/ipvs/ip_vs_sync.c
@@ -836,7 +836,7 @@
 
 int start_sync_thread(int state, char *mcast_ifn, __u8 syncid)
 {
-	DECLARE_COMPLETION(startup);
+	DECLARE_COMPLETION_ONSTACK(startup);
 	pid_t pid;
 
 	if ((state == IP_VS_STATE_MASTER && sync_master_pid) ||