[S390] get rid of unused variables

Remove trivially unused variables as detected with -Wunused-but-set-variable.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/appldata/appldata_base.c

@@ -130,9 +130,7 @@ static void appldata_work_fn(struct work_struct *work)
 {
 	struct list_head *lh;
 	struct appldata_ops *ops;
-	int i;
 
-	i = 0;
 	get_online_cpus();
 	mutex_lock(&appldata_ops_mutex);
 	list_for_each(lh, &appldata_ops_list) {

arch/s390/mm/extmem.c

@@ -681,8 +681,6 @@ void
 segment_save(char *name)
 {
 	struct dcss_segment *seg;
-	int startpfn = 0;
-	int endpfn = 0;
 	char cmd1[160];
 	char cmd2[80];
 	int i, response;
@@ -698,8 +696,6 @@ segment_save(char *name)
 		goto out;
 	}
 
-	startpfn = seg->start_addr >> PAGE_SHIFT;
-	endpfn = (seg->end) >> PAGE_SHIFT;
 	sprintf(cmd1, "DEFSEG %s", name);
 	for (i=0; i<seg->segcnt; i++) {
 		sprintf(cmd1+strlen(cmd1), " %lX-%lX %s",

drivers/s390/block/dasd_alias.c

@@ -253,13 +253,11 @@ int dasd_alias_make_device_known_to_lcu(struct dasd_device *device)
  */
 void dasd_alias_lcu_setup_complete(struct dasd_device *device)
 {
-	struct dasd_eckd_private *private;
 	unsigned long flags;
 	struct alias_server *server;
 	struct alias_lcu *lcu;
 	struct dasd_uid uid;
 
-	private = (struct dasd_eckd_private *) device->private;
 	device->discipline->get_uid(device, &uid);
 	lcu = NULL;
 	spin_lock_irqsave(&aliastree.lock, flags);
@@ -279,13 +277,11 @@ void dasd_alias_lcu_setup_complete(struct dasd_device *device)
 
 void dasd_alias_wait_for_lcu_setup(struct dasd_device *device)
 {
-	struct dasd_eckd_private *private;
 	unsigned long flags;
 	struct alias_server *server;
 	struct alias_lcu *lcu;
 	struct dasd_uid uid;
 
-	private = (struct dasd_eckd_private *) device->private;
 	device->discipline->get_uid(device, &uid);
 	lcu = NULL;
 	spin_lock_irqsave(&aliastree.lock, flags);

drivers/s390/block/dasd_eckd.c

@@ -1611,10 +1611,8 @@ static void dasd_eckd_analysis_callback(struct dasd_ccw_req *init_cqr,
 
 static int dasd_eckd_start_analysis(struct dasd_block *block)
 {
-	struct dasd_eckd_private *private;
 	struct dasd_ccw_req *init_cqr;
 
-	private = (struct dasd_eckd_private *) block->base->private;
 	init_cqr = dasd_eckd_analysis_ccw(block->base);
 	if (IS_ERR(init_cqr))
 		return PTR_ERR(init_cqr);
@@ -2264,7 +2262,6 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track(
 					       unsigned int blk_per_trk,
 					       unsigned int blksize)
 {
-	struct dasd_eckd_private *private;
 	unsigned long *idaws;
 	struct dasd_ccw_req *cqr;
 	struct ccw1 *ccw;
@@ -2283,7 +2280,6 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track(
 	unsigned int recoffs;
 
 	basedev = block->base;
-	private = (struct dasd_eckd_private *) basedev->private;
 	if (rq_data_dir(req) == READ)
 		cmd = DASD_ECKD_CCW_READ_TRACK_DATA;
 	else if (rq_data_dir(req) == WRITE)
@@ -2573,7 +2569,6 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
 					       unsigned int blk_per_trk,
 					       unsigned int blksize)
 {
-	struct dasd_eckd_private *private;
 	struct dasd_ccw_req *cqr;
 	struct req_iterator iter;
 	struct bio_vec *bv;
@@ -2594,7 +2589,6 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
 	unsigned int count, count_to_trk_end;
 
 	basedev = block->base;
-	private = (struct dasd_eckd_private *) basedev->private;
 	if (rq_data_dir(req) == READ) {
 		cmd = DASD_ECKD_CCW_READ_TRACK_DATA;
 		itcw_op = ITCW_OP_READ;
@@ -2801,7 +2795,6 @@ static struct dasd_ccw_req *dasd_raw_build_cp(struct dasd_device *startdev,
 					       struct dasd_block *block,
 					       struct request *req)
 {
-	struct dasd_eckd_private *private;
 	unsigned long *idaws;
 	struct dasd_device *basedev;
 	struct dasd_ccw_req *cqr;
@@ -2836,7 +2829,6 @@ static struct dasd_ccw_req *dasd_raw_build_cp(struct dasd_device *startdev,
 	trkcount = last_trk - first_trk + 1;
 	first_offs = 0;
 	basedev = block->base;
-	private = (struct dasd_eckd_private *) basedev->private;
 
 	if (rq_data_dir(req) == READ)
 		cmd = DASD_ECKD_CCW_READ_TRACK;

drivers/s390/char/raw3270.c

@@ -598,7 +598,6 @@ __raw3270_size_device(struct raw3270 *rp)
 	static const unsigned char wbuf[] =
 		{ 0x00, 0x07, 0x01, 0xff, 0x03, 0x00, 0x81 };
 	struct raw3270_ua *uap;
-	unsigned short count;
 	int rc;
 
 	/*
@@ -653,7 +652,6 @@ __raw3270_size_device(struct raw3270 *rp)
 	if (rc)
 		return rc;
 	/* Got a Query Reply */
-	count = sizeof(rp->init_data) - rp->init_request.rescnt;
 	uap = (struct raw3270_ua *) (rp->init_data + 1);
 	/* Paranoia check. */
 	if (rp->init_data[0] != 0x88 || uap->uab.qcode != 0x81)

drivers/s390/char/sclp_sdias.c

@@ -69,9 +69,6 @@ static DEFINE_MUTEX(sdias_mutex);
 
 static void sdias_callback(struct sclp_req *request, void *data)
 {
-	struct sdias_sccb *cbsccb;
-
-	cbsccb = (struct sdias_sccb *) request->sccb;
 	sclp_req_done = 1;
 	wake_up(&sdias_wq); /* Inform caller, that request is complete */
 	TRACE("callback done\n");

drivers/s390/char/tape_3590.c

@@ -796,10 +796,8 @@ static void tape_3590_med_state_set(struct tape_device *device,
 static int
 tape_3590_done(struct tape_device *device, struct tape_request *request)
 {
-	struct tape_3590_disc_data *disc_data;
 
 	DBF_EVENT(6, "%s done\n", tape_op_verbose[request->op]);
-	disc_data = device->discdata;
 
 	switch (request->op) {
 	case TO_BSB:
@@ -1397,11 +1395,9 @@ static int tape_3590_crypt_error(struct tape_device *device,
 	u8 cu_rc, ekm_rc1;
 	u16 ekm_rc2;
 	u32 drv_rc;
-	const char *bus_id;
 	char *sense;
 
 	sense = ((struct tape_3590_sense *) irb->ecw)->fmt.data;
-	bus_id = dev_name(&device->cdev->dev);
 	cu_rc = sense[0];
 	drv_rc = *((u32*) &sense[5]) & 0xffffff;
 	ekm_rc1 = sense[9];
@@ -1429,7 +1425,6 @@ tape_3590_unit_check(struct tape_device *device, struct tape_request *request,
 		     struct irb *irb)
 {
 	struct tape_3590_sense *sense;
-	int rc;
 
 #ifdef CONFIG_S390_TAPE_BLOCK
 	if (request->op == TO_BLOCK) {
@@ -1454,7 +1449,6 @@ tape_3590_unit_check(struct tape_device *device, struct tape_request *request,
 	 *   - "break":     basic error recovery is done
 	 *   - "goto out:": just print error message if available
 	 */
-	rc = -EIO;
 	switch (sense->rc_rqc) {
 
 	case 0x1110:

drivers/s390/cio/device_fsm.c

@@ -841,9 +841,6 @@ ccw_device_w4sense(struct ccw_device *cdev, enum dev_event dev_event)
 static void
 ccw_device_killing_irq(struct ccw_device *cdev, enum dev_event dev_event)
 {
-	struct subchannel *sch;
-
-	sch = to_subchannel(cdev->dev.parent);
 	ccw_device_set_timeout(cdev, 0);
 	/* Start delayed path verification. */
 	ccw_device_online_verify(cdev, 0);

drivers/s390/cio/device_ops.c

@@ -418,12 +418,9 @@ int ccw_device_resume(struct ccw_device *cdev)
 int
 ccw_device_call_handler(struct ccw_device *cdev)
 {
-	struct subchannel *sch;
 	unsigned int stctl;
 	int ending_status;
 
-	sch = to_subchannel(cdev->dev.parent);
-
 	/*
 	 * we allow for the device action handler if .
 	 *  - we received ending status