67  * sets the machine state and the ABORTING bit in us->dflags to prevent
69  * below, which atomically tests-and-clears the URB_ACTIVE bit in us->dflags
74  * When a disconnect occurs, the DISCONNECTING bit in us->dflags is set to
98  * This is the completion handler which will wake us up when an URB
115 static int usb_stor_msg_common(struct us_data *us, int timeout)  in usb_stor_msg_common()  argument
122 	if (test_bit(US_FLIDX_ABORTING, &us->dflags))  in usb_stor_msg_common()
129 	us->current_urb->context = &urb_done;  in usb_stor_msg_common()
130 	us->current_urb->transfer_flags = 0;  in usb_stor_msg_common()
133 	 * we assume that if transfer_buffer isn't us->iobuf then it  in usb_stor_msg_common()
135 	 * easier than always having the caller tell us whether the  in usb_stor_msg_common()
138 	if (us->current_urb->transfer_buffer == us->iobuf)  in usb_stor_msg_common()
139 		us->current_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;  in usb_stor_msg_common()
140 	us->current_urb->transfer_dma = us->iobuf_dma;  in usb_stor_msg_common()
143 	status = usb_submit_urb(us->current_urb, GFP_NOIO);  in usb_stor_msg_common()
153 	set_bit(US_FLIDX_URB_ACTIVE, &us->dflags);  in usb_stor_msg_common()
156 	if (test_bit(US_FLIDX_ABORTING, &us->dflags)) {  in usb_stor_msg_common()
159 		if (test_and_clear_bit(US_FLIDX_URB_ACTIVE, &us->dflags)) {  in usb_stor_msg_common()
160 			usb_stor_dbg(us, "-- cancelling URB\n");  in usb_stor_msg_common()
161 			usb_unlink_urb(us->current_urb);  in usb_stor_msg_common()
169 	clear_bit(US_FLIDX_URB_ACTIVE, &us->dflags);  in usb_stor_msg_common()
172 		usb_stor_dbg(us, "%s -- cancelling URB\n",  in usb_stor_msg_common()
174 		usb_kill_urb(us->current_urb);  in usb_stor_msg_common()
178 	return us->current_urb->status;  in usb_stor_msg_common()
185 int usb_stor_control_msg(struct us_data *us, unsigned int pipe,  in usb_stor_control_msg()  argument
191 	usb_stor_dbg(us, "rq=%02x rqtype=%02x value=%04x index=%02x len=%u\n",  in usb_stor_control_msg()
195 	us->cr->bRequestType = requesttype;  in usb_stor_control_msg()
196 	us->cr->bRequest = request;  in usb_stor_control_msg()
197 	us->cr->wValue = cpu_to_le16(value);  in usb_stor_control_msg()
198 	us->cr->wIndex = cpu_to_le16(index);  in usb_stor_control_msg()
199 	us->cr->wLength = cpu_to_le16(size);  in usb_stor_control_msg()
202 	usb_fill_control_urb(us->current_urb, us->pusb_dev, pipe,   in usb_stor_control_msg()
203 			 (unsigned char*) us->cr, data, size,   in usb_stor_control_msg()
205 	status = usb_stor_msg_common(us, timeout);  in usb_stor_control_msg()
209 		status = us->current_urb->actual_length;  in usb_stor_control_msg()
227 int usb_stor_clear_halt(struct us_data *us, unsigned int pipe)  in usb_stor_clear_halt()  argument
235 	result = usb_stor_control_msg(us, us->send_ctrl_pipe,  in usb_stor_clear_halt()
241 		usb_reset_endpoint(us->pusb_dev, endp);  in usb_stor_clear_halt()
243 	usb_stor_dbg(us, "result = %d\n", result);  in usb_stor_clear_halt()
256 static int interpret_urb_result(struct us_data *us, unsigned int pipe,  in interpret_urb_result()  argument
259 	usb_stor_dbg(us, "Status code %d; transferred %u/%u\n",  in interpret_urb_result()
266 			usb_stor_dbg(us, "-- short transfer\n");  in interpret_urb_result()
270 		usb_stor_dbg(us, "-- transfer complete\n");  in interpret_urb_result()
280 			usb_stor_dbg(us, "-- stall on control pipe\n");  in interpret_urb_result()
285 		usb_stor_dbg(us, "clearing endpoint halt for pipe 0x%x\n",  in interpret_urb_result()
287 		if (usb_stor_clear_halt(us, pipe) < 0)  in interpret_urb_result()
293 		usb_stor_dbg(us, "-- babble\n");  in interpret_urb_result()
298 		usb_stor_dbg(us, "-- transfer cancelled\n");  in interpret_urb_result()
303 		usb_stor_dbg(us, "-- short read transfer\n");  in interpret_urb_result()
308 		usb_stor_dbg(us, "-- abort or disconnect in progress\n");  in interpret_urb_result()
313 		usb_stor_dbg(us, "-- unknown error\n");  in interpret_urb_result()
322 int usb_stor_ctrl_transfer(struct us_data *us, unsigned int pipe,  in usb_stor_ctrl_transfer()  argument
328 	usb_stor_dbg(us, "rq=%02x rqtype=%02x value=%04x index=%02x len=%u\n",  in usb_stor_ctrl_transfer()
332 	us->cr->bRequestType = requesttype;  in usb_stor_ctrl_transfer()
333 	us->cr->bRequest = request;  in usb_stor_ctrl_transfer()
334 	us->cr->wValue = cpu_to_le16(value);  in usb_stor_ctrl_transfer()
335 	us->cr->wIndex = cpu_to_le16(index);  in usb_stor_ctrl_transfer()
336 	us->cr->wLength = cpu_to_le16(size);  in usb_stor_ctrl_transfer()
339 	usb_fill_control_urb(us->current_urb, us->pusb_dev, pipe,   in usb_stor_ctrl_transfer()
340 			 (unsigned char*) us->cr, data, size,   in usb_stor_ctrl_transfer()
342 	result = usb_stor_msg_common(us, 0);  in usb_stor_ctrl_transfer()
344 	return interpret_urb_result(us, pipe, size, result,  in usb_stor_ctrl_transfer()
345 			us->current_urb->actual_length);  in usb_stor_ctrl_transfer()
353  * This routine always uses us->recv_intr_pipe as the pipe and
354  * us->ep_bInterval as the interrupt interval.
356 static int usb_stor_intr_transfer(struct us_data *us, void *buf,  in usb_stor_intr_transfer()  argument
360 	unsigned int pipe = us->recv_intr_pipe;  in usb_stor_intr_transfer()
363 	usb_stor_dbg(us, "xfer %u bytes\n", length);  in usb_stor_intr_transfer()
366 	maxp = usb_maxpacket(us->pusb_dev, pipe);  in usb_stor_intr_transfer()
371 	usb_fill_int_urb(us->current_urb, us->pusb_dev, pipe, buf,  in usb_stor_intr_transfer()
373 			us->ep_bInterval);  in usb_stor_intr_transfer()
374 	result = usb_stor_msg_common(us, 0);  in usb_stor_intr_transfer()
376 	return interpret_urb_result(us, pipe, length, result,  in usb_stor_intr_transfer()
377 			us->current_urb->actual_length);  in usb_stor_intr_transfer()
385 int usb_stor_bulk_transfer_buf(struct us_data *us, unsigned int pipe,  in usb_stor_bulk_transfer_buf()  argument
390 	usb_stor_dbg(us, "xfer %u bytes\n", length);  in usb_stor_bulk_transfer_buf()
393 	usb_fill_bulk_urb(us->current_urb, us->pusb_dev, pipe, buf, length,  in usb_stor_bulk_transfer_buf()
395 	result = usb_stor_msg_common(us, 0);  in usb_stor_bulk_transfer_buf()
399 		*act_len = us->current_urb->actual_length;  in usb_stor_bulk_transfer_buf()
400 	return interpret_urb_result(us, pipe, length, result,   in usb_stor_bulk_transfer_buf()
401 			us->current_urb->actual_length);  in usb_stor_bulk_transfer_buf()
411 static int usb_stor_bulk_transfer_sglist(struct us_data *us, unsigned int pipe,  in usb_stor_bulk_transfer_sglist()  argument
418 	if (test_bit(US_FLIDX_ABORTING, &us->dflags))  in usb_stor_bulk_transfer_sglist()
422 	usb_stor_dbg(us, "xfer %u bytes, %d entries\n", length, num_sg);  in usb_stor_bulk_transfer_sglist()
423 	result = usb_sg_init(&us->current_sg, us->pusb_dev, pipe, 0,  in usb_stor_bulk_transfer_sglist()
426 		usb_stor_dbg(us, "usb_sg_init returned %d\n", result);  in usb_stor_bulk_transfer_sglist()
434 	set_bit(US_FLIDX_SG_ACTIVE, &us->dflags);  in usb_stor_bulk_transfer_sglist()
437 	if (test_bit(US_FLIDX_ABORTING, &us->dflags)) {  in usb_stor_bulk_transfer_sglist()
440 		if (test_and_clear_bit(US_FLIDX_SG_ACTIVE, &us->dflags)) {  in usb_stor_bulk_transfer_sglist()
441 			usb_stor_dbg(us, "-- cancelling sg request\n");  in usb_stor_bulk_transfer_sglist()
442 			usb_sg_cancel(&us->current_sg);  in usb_stor_bulk_transfer_sglist()
447 	usb_sg_wait(&us->current_sg);  in usb_stor_bulk_transfer_sglist()
448 	clear_bit(US_FLIDX_SG_ACTIVE, &us->dflags);  in usb_stor_bulk_transfer_sglist()
450 	result = us->current_sg.status;  in usb_stor_bulk_transfer_sglist()
452 		*act_len = us->current_sg.bytes;  in usb_stor_bulk_transfer_sglist()
453 	return interpret_urb_result(us, pipe, length, result,  in usb_stor_bulk_transfer_sglist()
454 			us->current_sg.bytes);  in usb_stor_bulk_transfer_sglist()
466 int usb_stor_bulk_srb(struct us_data* us, unsigned int pipe,  in usb_stor_bulk_srb()  argument
470 	int result = usb_stor_bulk_transfer_sglist(us, pipe, scsi_sglist(srb),  in usb_stor_bulk_srb()
488 int usb_stor_bulk_transfer_sg(struct us_data* us, unsigned int pipe,  in usb_stor_bulk_transfer_sg()  argument
497 		result = usb_stor_bulk_transfer_sglist(us, pipe,  in usb_stor_bulk_transfer_sg()
503 		result = usb_stor_bulk_transfer_buf(us, pipe, buf,   in usb_stor_bulk_transfer_sg()
524 static void last_sector_hacks(struct us_data *us, struct scsi_cmnd *srb)  in last_sector_hacks()  argument
544 	if (!us->use_last_sector_hacks)  in last_sector_hacks()
569 		us->use_last_sector_hacks = 0;  in last_sector_hacks()
581 		if (++us->last_sector_retries < 3)  in last_sector_hacks()
595 		us->last_sector_retries = 0;  in last_sector_hacks()
604 void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us)  in usb_stor_invoke_transport()  argument
611 	result = us->transport(srb, us);  in usb_stor_invoke_transport()
617 	if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) {  in usb_stor_invoke_transport()
618 		usb_stor_dbg(us, "-- command was aborted\n");  in usb_stor_invoke_transport()
625 		usb_stor_dbg(us, "-- transport indicates error, resetting\n");  in usb_stor_invoke_transport()
633 		last_sector_hacks(us, srb);  in usb_stor_invoke_transport()
653 	if ((us->protocol == USB_PR_CB || us->protocol == USB_PR_DPCM_USB) &&  in usb_stor_invoke_transport()
655 		usb_stor_dbg(us, "-- CB transport device requiring auto-sense\n");  in usb_stor_invoke_transport()
660 	if ((us->fflags & US_FL_SENSE_AFTER_SYNC) &&  in usb_stor_invoke_transport()
662 		usb_stor_dbg(us, "-- sense after SYNC CACHE\n");  in usb_stor_invoke_transport()
672 		usb_stor_dbg(us, "-- transport indicates command failure\n");  in usb_stor_invoke_transport()
684 	    !(us->fflags & US_FL_SANE_SENSE) &&  in usb_stor_invoke_transport()
685 	    !(us->fflags & US_FL_BAD_SENSE) &&  in usb_stor_invoke_transport()
687 		usb_stor_dbg(us, "-- SAT supported, increasing auto-sense\n");  in usb_stor_invoke_transport()
688 		us->fflags |= US_FL_SANE_SENSE;  in usb_stor_invoke_transport()
701 		usb_stor_dbg(us, "-- unexpectedly short transfer\n");  in usb_stor_invoke_transport()
714 		if (us->fflags & US_FL_SANE_SENSE)  in usb_stor_invoke_transport()
717 		usb_stor_dbg(us, "Issuing auto-REQUEST_SENSE\n");  in usb_stor_invoke_transport()
722 		if (us->subclass == USB_SC_RBC || us->subclass == USB_SC_SCSI ||  in usb_stor_invoke_transport()
723 				us->subclass == USB_SC_CYP_ATACB)  in usb_stor_invoke_transport()
730 		temp_result = us->transport(us->srb, us);  in usb_stor_invoke_transport()
735 		if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) {  in usb_stor_invoke_transport()
736 			usb_stor_dbg(us, "-- auto-sense aborted\n");  in usb_stor_invoke_transport()
741 				us->fflags &= ~US_FL_SANE_SENSE;  in usb_stor_invoke_transport()
742 				us->fflags |= US_FL_BAD_SENSE;  in usb_stor_invoke_transport()
755 			usb_stor_dbg(us, "-- auto-sense failure, retry small sense\n");  in usb_stor_invoke_transport()
757 			us->fflags &= ~US_FL_SANE_SENSE;  in usb_stor_invoke_transport()
758 			us->fflags |= US_FL_BAD_SENSE;  in usb_stor_invoke_transport()
764 			usb_stor_dbg(us, "-- auto-sense failure\n");  in usb_stor_invoke_transport()
772 			if (!(us->fflags & US_FL_SCM_MULT_TARG))  in usb_stor_invoke_transport()
783 		    !(us->fflags & US_FL_SANE_SENSE) &&  in usb_stor_invoke_transport()
784 		    !(us->fflags & US_FL_BAD_SENSE) &&  in usb_stor_invoke_transport()
786 			usb_stor_dbg(us, "-- SANE_SENSE support enabled\n");  in usb_stor_invoke_transport()
787 			us->fflags |= US_FL_SANE_SENSE;  in usb_stor_invoke_transport()
793 			usb_stor_dbg(us, "-- Sense data truncated to %i from %i\n",  in usb_stor_invoke_transport()
802 		usb_stor_dbg(us, "-- Result from auto-sense is %d\n",  in usb_stor_invoke_transport()
804 		usb_stor_dbg(us, "-- code: 0x%x, key: 0x%x, ASC: 0x%x, ASCQ: 0x%x\n",  in usb_stor_invoke_transport()
808 		usb_stor_show_sense(us, sshdr.sense_key, sshdr.asc, sshdr.ascq);  in usb_stor_invoke_transport()
869 	if (unlikely((us->fflags & US_FL_INITIAL_READ10) &&  in usb_stor_invoke_transport()
872 			set_bit(US_FLIDX_READ10_WORKED, &us->dflags);  in usb_stor_invoke_transport()
873 		} else if (test_bit(US_FLIDX_READ10_WORKED, &us->dflags)) {  in usb_stor_invoke_transport()
874 			clear_bit(US_FLIDX_READ10_WORKED, &us->dflags);  in usb_stor_invoke_transport()
875 			set_bit(US_FLIDX_REDO_READ10, &us->dflags);  in usb_stor_invoke_transport()
883 		if (test_bit(US_FLIDX_REDO_READ10, &us->dflags)) {  in usb_stor_invoke_transport()
884 			clear_bit(US_FLIDX_REDO_READ10, &us->dflags);  in usb_stor_invoke_transport()
895 	last_sector_hacks(us, srb);  in usb_stor_invoke_transport()
909 	scsi_lock(us_to_host(us));  in usb_stor_invoke_transport()
910 	set_bit(US_FLIDX_RESETTING, &us->dflags);  in usb_stor_invoke_transport()
911 	clear_bit(US_FLIDX_ABORTING, &us->dflags);  in usb_stor_invoke_transport()
912 	scsi_unlock(us_to_host(us));  in usb_stor_invoke_transport()
918 	mutex_unlock(&us->dev_mutex);  in usb_stor_invoke_transport()
919 	result = usb_stor_port_reset(us);  in usb_stor_invoke_transport()
920 	mutex_lock(&us->dev_mutex);  in usb_stor_invoke_transport()
923 		scsi_lock(us_to_host(us));  in usb_stor_invoke_transport()
924 		usb_stor_report_device_reset(us);  in usb_stor_invoke_transport()
925 		scsi_unlock(us_to_host(us));  in usb_stor_invoke_transport()
926 		us->transport_reset(us);  in usb_stor_invoke_transport()
928 	clear_bit(US_FLIDX_RESETTING, &us->dflags);  in usb_stor_invoke_transport()
929 	last_sector_hacks(us, srb);  in usb_stor_invoke_transport()
933 void usb_stor_stop_transport(struct us_data *us)  in usb_stor_stop_transport()  argument
941 	if (test_and_clear_bit(US_FLIDX_URB_ACTIVE, &us->dflags)) {  in usb_stor_stop_transport()
942 		usb_stor_dbg(us, "-- cancelling URB\n");  in usb_stor_stop_transport()
943 		usb_unlink_urb(us->current_urb);  in usb_stor_stop_transport()
947 	if (test_and_clear_bit(US_FLIDX_SG_ACTIVE, &us->dflags)) {  in usb_stor_stop_transport()
948 		usb_stor_dbg(us, "-- cancelling sg request\n");  in usb_stor_stop_transport()
949 		usb_sg_cancel(&us->current_sg);  in usb_stor_stop_transport()
957 int usb_stor_CB_transport(struct scsi_cmnd *srb, struct us_data *us)  in usb_stor_CB_transport()  argument
967 	 * Stack may be vmallocated.  So no DMA for us.  Make a copy.  in usb_stor_CB_transport()
969 	memcpy(us->iobuf, srb->cmnd, srb->cmd_len);  in usb_stor_CB_transport()
970 	result = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe,  in usb_stor_CB_transport()
973 				      us->ifnum, us->iobuf, srb->cmd_len);  in usb_stor_CB_transport()
976 	usb_stor_dbg(us, "Call to usb_stor_ctrl_transfer() returned %d\n",  in usb_stor_CB_transport()
993 				us->recv_bulk_pipe : us->send_bulk_pipe;  in usb_stor_CB_transport()
994 		result = usb_stor_bulk_srb(us, pipe, srb);  in usb_stor_CB_transport()
995 		usb_stor_dbg(us, "CBI data stage result is 0x%x\n", result);  in usb_stor_CB_transport()
1010 	if (us->protocol != USB_PR_CBI)  in usb_stor_CB_transport()
1013 	result = usb_stor_intr_transfer(us, us->iobuf, 2);  in usb_stor_CB_transport()
1014 	usb_stor_dbg(us, "Got interrupt data (0x%x, 0x%x)\n",  in usb_stor_CB_transport()
1015 		     us->iobuf[0], us->iobuf[1]);  in usb_stor_CB_transport()
1020 	 * UFI gives us ASC and ASCQ, like a request sense  in usb_stor_CB_transport()
1027 	if (us->subclass == USB_SC_UFI) {  in usb_stor_CB_transport()
1031 		if (us->iobuf[0])  in usb_stor_CB_transport()
1043 	if (us->iobuf[0]) {  in usb_stor_CB_transport()
1044 		usb_stor_dbg(us, "CBI IRQ data showed reserved bType 0x%x\n",  in usb_stor_CB_transport()
1045 			     us->iobuf[0]);  in usb_stor_CB_transport()
1051 	switch (us->iobuf[1] & 0x0F) {  in usb_stor_CB_transport()
1065 		usb_stor_clear_halt(us, pipe);  in usb_stor_CB_transport()
1075 int usb_stor_Bulk_max_lun(struct us_data *us)  in usb_stor_Bulk_max_lun()  argument
1080 	us->iobuf[0] = 0;  in usb_stor_Bulk_max_lun()
1081 	result = usb_stor_control_msg(us, us->recv_ctrl_pipe,  in usb_stor_Bulk_max_lun()
1085 				 0, us->ifnum, us->iobuf, 1, 10*HZ);  in usb_stor_Bulk_max_lun()
1087 	usb_stor_dbg(us, "GetMaxLUN command result is %d, data is %d\n",  in usb_stor_Bulk_max_lun()
1088 		     result, us->iobuf[0]);  in usb_stor_Bulk_max_lun()
1096 		if (us->iobuf[0] < 16) {  in usb_stor_Bulk_max_lun()
1097 			return us->iobuf[0];  in usb_stor_Bulk_max_lun()
1099 			dev_info(&us->pusb_intf->dev,  in usb_stor_Bulk_max_lun()
1101 				 us->iobuf[0]);  in usb_stor_Bulk_max_lun()
1115 int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us)  in usb_stor_Bulk_transport()  argument
1117 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;  in usb_stor_Bulk_transport()
1118 	struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *) us->iobuf;  in usb_stor_Bulk_transport()
1127 	if (unlikely(us->fflags & US_FL_BULK32)) {  in usb_stor_Bulk_transport()
1129 		us->iobuf[31] = 0;  in usb_stor_Bulk_transport()
1137 	bcb->Tag = ++us->tag;  in usb_stor_Bulk_transport()
1139 	if (us->fflags & US_FL_SCM_MULT_TARG)  in usb_stor_Bulk_transport()
1148 	usb_stor_dbg(us, "Bulk Command S 0x%x T 0x%x L %d F %d Trg %d LUN %d CL %d\n",  in usb_stor_Bulk_transport()
1153 	result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,  in usb_stor_Bulk_transport()
1155 	usb_stor_dbg(us, "Bulk command transfer result=%d\n", result);  in usb_stor_Bulk_transport()
1163 	 * Some USB-IDE converter chips need a 100us delay between the  in usb_stor_Bulk_transport()
1167 	if (unlikely(us->fflags & US_FL_GO_SLOW))  in usb_stor_Bulk_transport()
1172 				us->recv_bulk_pipe : us->send_bulk_pipe;  in usb_stor_Bulk_transport()
1173 		result = usb_stor_bulk_srb(us, pipe, srb);  in usb_stor_Bulk_transport()
1174 		usb_stor_dbg(us, "Bulk data transfer result 0x%x\n", result);  in usb_stor_Bulk_transport()
1180 		 * amount requested, the spec requires us to transfer  in usb_stor_Bulk_transport()
1207 				usb_stor_dbg(us, "Device skipped data phase\n");  in usb_stor_Bulk_transport()
1220 	usb_stor_dbg(us, "Attempting to get CSW...\n");  in usb_stor_Bulk_transport()
1221 	result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,  in usb_stor_Bulk_transport()
1230 		usb_stor_dbg(us, "Received 0-length CSW; retrying...\n");  in usb_stor_Bulk_transport()
1231 		result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,  in usb_stor_Bulk_transport()
1239 		usb_stor_dbg(us, "Attempting to get CSW (2nd try)...\n");  in usb_stor_Bulk_transport()
1240 		result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,  in usb_stor_Bulk_transport()
1245 	usb_stor_dbg(us, "Bulk status result = %d\n", result);  in usb_stor_Bulk_transport()
1252 	usb_stor_dbg(us, "Bulk Status S 0x%x T 0x%x R %u Stat 0x%x\n",  in usb_stor_Bulk_transport()
1255 	if (!(bcs->Tag == us->tag || (us->fflags & US_FL_BULK_IGNORE_TAG)) ||  in usb_stor_Bulk_transport()
1257 		usb_stor_dbg(us, "Bulk logical error\n");  in usb_stor_Bulk_transport()
1266 	if (!us->bcs_signature) {  in usb_stor_Bulk_transport()
1267 		us->bcs_signature = bcs->Signature;  in usb_stor_Bulk_transport()
1268 		if (us->bcs_signature != cpu_to_le32(US_BULK_CS_SIGN))  in usb_stor_Bulk_transport()
1269 			usb_stor_dbg(us, "Learnt BCS signature 0x%08X\n",  in usb_stor_Bulk_transport()
1270 				     le32_to_cpu(us->bcs_signature));  in usb_stor_Bulk_transport()
1271 	} else if (bcs->Signature != us->bcs_signature) {  in usb_stor_Bulk_transport()
1272 		usb_stor_dbg(us, "Signature mismatch: got %08X, expecting %08X\n",  in usb_stor_Bulk_transport()
1274 			     le32_to_cpu(us->bcs_signature));  in usb_stor_Bulk_transport()
1280 	 * was really transferred and what the device tells us  in usb_stor_Bulk_transport()
1282 	if (residue && !(us->fflags & US_FL_IGNORE_RESIDUE)) {  in usb_stor_Bulk_transport()
1295 			us->fflags |= US_FL_IGNORE_RESIDUE;  in usb_stor_Bulk_transport()
1347 static int usb_stor_reset_common(struct us_data *us,  in usb_stor_reset_common()  argument
1354 	if (test_bit(US_FLIDX_DISCONNECTING, &us->dflags)) {  in usb_stor_reset_common()
1355 		usb_stor_dbg(us, "No reset during disconnect\n");  in usb_stor_reset_common()
1359 	result = usb_stor_control_msg(us, us->send_ctrl_pipe,  in usb_stor_reset_common()
1363 		usb_stor_dbg(us, "Soft reset failed: %d\n", result);  in usb_stor_reset_common()
1371 	wait_event_interruptible_timeout(us->delay_wait,  in usb_stor_reset_common()
1372 			test_bit(US_FLIDX_DISCONNECTING, &us->dflags),  in usb_stor_reset_common()
1374 	if (test_bit(US_FLIDX_DISCONNECTING, &us->dflags)) {  in usb_stor_reset_common()
1375 		usb_stor_dbg(us, "Reset interrupted by disconnect\n");  in usb_stor_reset_common()
1379 	usb_stor_dbg(us, "Soft reset: clearing bulk-in endpoint halt\n");  in usb_stor_reset_common()
1380 	result = usb_stor_clear_halt(us, us->recv_bulk_pipe);  in usb_stor_reset_common()
1382 	usb_stor_dbg(us, "Soft reset: clearing bulk-out endpoint halt\n");  in usb_stor_reset_common()
1383 	result2 = usb_stor_clear_halt(us, us->send_bulk_pipe);  in usb_stor_reset_common()
1389 		usb_stor_dbg(us, "Soft reset failed\n");  in usb_stor_reset_common()
1391 		usb_stor_dbg(us, "Soft reset done\n");  in usb_stor_reset_common()
1398 int usb_stor_CB_reset(struct us_data *us)  in usb_stor_CB_reset()  argument
1400 	memset(us->iobuf, 0xFF, CB_RESET_CMD_SIZE);  in usb_stor_CB_reset()
1401 	us->iobuf[0] = SEND_DIAGNOSTIC;  in usb_stor_CB_reset()
1402 	us->iobuf[1] = 4;  in usb_stor_CB_reset()
1403 	return usb_stor_reset_common(us, US_CBI_ADSC,   in usb_stor_CB_reset()
1405 				 0, us->ifnum, us->iobuf, CB_RESET_CMD_SIZE);  in usb_stor_CB_reset()
1413 int usb_stor_Bulk_reset(struct us_data *us)  in usb_stor_Bulk_reset()  argument
1415 	return usb_stor_reset_common(us, US_BULK_RESET_REQUEST,   in usb_stor_Bulk_reset()
1417 				 0, us->ifnum, NULL, 0);  in usb_stor_Bulk_reset()
1423  * us->dev_mutex.
1425 int usb_stor_port_reset(struct us_data *us)  in usb_stor_port_reset()  argument
1430 	if (us->pusb_dev->quirks & USB_QUIRK_RESET)  in usb_stor_port_reset()
1433 	result = usb_lock_device_for_reset(us->pusb_dev, us->pusb_intf);  in usb_stor_port_reset()
1435 		usb_stor_dbg(us, "unable to lock device for reset: %d\n",  in usb_stor_port_reset()
1439 		if (test_bit(US_FLIDX_DISCONNECTING, &us->dflags)) {  in usb_stor_port_reset()
1441 			usb_stor_dbg(us, "No reset during disconnect\n");  in usb_stor_port_reset()
1443 			result = usb_reset_device(us->pusb_dev);  in usb_stor_port_reset()
1444 			usb_stor_dbg(us, "usb_reset_device returns %d\n",  in usb_stor_port_reset()
1447 		usb_unlock_device(us->pusb_dev);  in usb_stor_port_reset()