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175 lines
6.7 KiB
175 lines
6.7 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Driver for USB Mass Storage compliant devices |
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* Debugging Functions Source Code File |
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* |
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* Current development and maintenance by: |
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* (c) 1999-2002 Matthew Dharm ([email protected]) |
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* |
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* Developed with the assistance of: |
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* (c) 2002 Alan Stern <[email protected]> |
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* |
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* Initial work by: |
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* (c) 1999 Michael Gee ([email protected]) |
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* |
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* This driver is based on the 'USB Mass Storage Class' document. This |
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* describes in detail the protocol used to communicate with such |
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* devices. Clearly, the designers had SCSI and ATAPI commands in |
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* mind when they created this document. The commands are all very |
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* similar to commands in the SCSI-II and ATAPI specifications. |
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* |
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* It is important to note that in a number of cases this class |
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* exhibits class-specific exemptions from the USB specification. |
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* Notably the usage of NAK, STALL and ACK differs from the norm, in |
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* that they are used to communicate wait, failed and OK on commands. |
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* |
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* Also, for certain devices, the interrupt endpoint is used to convey |
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* status of a command. |
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*/ |
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#include <linux/device.h> |
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#include <linux/cdrom.h> |
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#include <linux/export.h> |
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#include <scsi/scsi.h> |
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#include <scsi/scsi_cmnd.h> |
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#include <scsi/scsi_dbg.h> |
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#include "usb.h" |
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#include "debug.h" |
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#include "scsi.h" |
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void usb_stor_show_command(const struct us_data *us, struct scsi_cmnd *srb) |
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{ |
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char *what = NULL; |
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switch (srb->cmnd[0]) { |
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case TEST_UNIT_READY: what = "TEST_UNIT_READY"; break; |
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case REZERO_UNIT: what = "REZERO_UNIT"; break; |
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case REQUEST_SENSE: what = "REQUEST_SENSE"; break; |
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case FORMAT_UNIT: what = "FORMAT_UNIT"; break; |
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case READ_BLOCK_LIMITS: what = "READ_BLOCK_LIMITS"; break; |
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case REASSIGN_BLOCKS: what = "REASSIGN_BLOCKS"; break; |
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case READ_6: what = "READ_6"; break; |
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case WRITE_6: what = "WRITE_6"; break; |
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case SEEK_6: what = "SEEK_6"; break; |
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case READ_REVERSE: what = "READ_REVERSE"; break; |
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case WRITE_FILEMARKS: what = "WRITE_FILEMARKS"; break; |
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case SPACE: what = "SPACE"; break; |
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case INQUIRY: what = "INQUIRY"; break; |
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case RECOVER_BUFFERED_DATA: what = "RECOVER_BUFFERED_DATA"; break; |
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case MODE_SELECT: what = "MODE_SELECT"; break; |
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case RESERVE: what = "RESERVE"; break; |
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case RELEASE: what = "RELEASE"; break; |
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case COPY: what = "COPY"; break; |
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case ERASE: what = "ERASE"; break; |
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case MODE_SENSE: what = "MODE_SENSE"; break; |
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case START_STOP: what = "START_STOP"; break; |
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case RECEIVE_DIAGNOSTIC: what = "RECEIVE_DIAGNOSTIC"; break; |
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case SEND_DIAGNOSTIC: what = "SEND_DIAGNOSTIC"; break; |
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case ALLOW_MEDIUM_REMOVAL: what = "ALLOW_MEDIUM_REMOVAL"; break; |
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case SET_WINDOW: what = "SET_WINDOW"; break; |
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case READ_CAPACITY: what = "READ_CAPACITY"; break; |
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case READ_10: what = "READ_10"; break; |
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case WRITE_10: what = "WRITE_10"; break; |
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case SEEK_10: what = "SEEK_10"; break; |
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case WRITE_VERIFY: what = "WRITE_VERIFY"; break; |
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case VERIFY: what = "VERIFY"; break; |
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case SEARCH_HIGH: what = "SEARCH_HIGH"; break; |
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case SEARCH_EQUAL: what = "SEARCH_EQUAL"; break; |
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case SEARCH_LOW: what = "SEARCH_LOW"; break; |
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case SET_LIMITS: what = "SET_LIMITS"; break; |
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case READ_POSITION: what = "READ_POSITION"; break; |
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case SYNCHRONIZE_CACHE: what = "SYNCHRONIZE_CACHE"; break; |
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case LOCK_UNLOCK_CACHE: what = "LOCK_UNLOCK_CACHE"; break; |
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case READ_DEFECT_DATA: what = "READ_DEFECT_DATA"; break; |
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case MEDIUM_SCAN: what = "MEDIUM_SCAN"; break; |
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case COMPARE: what = "COMPARE"; break; |
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case COPY_VERIFY: what = "COPY_VERIFY"; break; |
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case WRITE_BUFFER: what = "WRITE_BUFFER"; break; |
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case READ_BUFFER: what = "READ_BUFFER"; break; |
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case UPDATE_BLOCK: what = "UPDATE_BLOCK"; break; |
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case READ_LONG: what = "READ_LONG"; break; |
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case WRITE_LONG: what = "WRITE_LONG"; break; |
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case CHANGE_DEFINITION: what = "CHANGE_DEFINITION"; break; |
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case WRITE_SAME: what = "WRITE_SAME"; break; |
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case GPCMD_READ_SUBCHANNEL: what = "READ SUBCHANNEL"; break; |
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case READ_TOC: what = "READ_TOC"; break; |
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case GPCMD_READ_HEADER: what = "READ HEADER"; break; |
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case GPCMD_PLAY_AUDIO_10: what = "PLAY AUDIO (10)"; break; |
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case GPCMD_PLAY_AUDIO_MSF: what = "PLAY AUDIO MSF"; break; |
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case GPCMD_GET_EVENT_STATUS_NOTIFICATION: |
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what = "GET EVENT/STATUS NOTIFICATION"; break; |
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case GPCMD_PAUSE_RESUME: what = "PAUSE/RESUME"; break; |
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case LOG_SELECT: what = "LOG_SELECT"; break; |
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case LOG_SENSE: what = "LOG_SENSE"; break; |
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case GPCMD_STOP_PLAY_SCAN: what = "STOP PLAY/SCAN"; break; |
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case GPCMD_READ_DISC_INFO: what = "READ DISC INFORMATION"; break; |
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case GPCMD_READ_TRACK_RZONE_INFO: |
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what = "READ TRACK INFORMATION"; break; |
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case GPCMD_RESERVE_RZONE_TRACK: what = "RESERVE TRACK"; break; |
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case GPCMD_SEND_OPC: what = "SEND OPC"; break; |
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case MODE_SELECT_10: what = "MODE_SELECT_10"; break; |
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case GPCMD_REPAIR_RZONE_TRACK: what = "REPAIR TRACK"; break; |
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case 0x59: what = "READ MASTER CUE"; break; |
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case MODE_SENSE_10: what = "MODE_SENSE_10"; break; |
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case GPCMD_CLOSE_TRACK: what = "CLOSE TRACK/SESSION"; break; |
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case 0x5C: what = "READ BUFFER CAPACITY"; break; |
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case 0x5D: what = "SEND CUE SHEET"; break; |
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case GPCMD_BLANK: what = "BLANK"; break; |
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case REPORT_LUNS: what = "REPORT LUNS"; break; |
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case MOVE_MEDIUM: what = "MOVE_MEDIUM or PLAY AUDIO (12)"; break; |
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case READ_12: what = "READ_12"; break; |
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case WRITE_12: what = "WRITE_12"; break; |
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case WRITE_VERIFY_12: what = "WRITE_VERIFY_12"; break; |
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case SEARCH_HIGH_12: what = "SEARCH_HIGH_12"; break; |
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case SEARCH_EQUAL_12: what = "SEARCH_EQUAL_12"; break; |
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case SEARCH_LOW_12: what = "SEARCH_LOW_12"; break; |
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case SEND_VOLUME_TAG: what = "SEND_VOLUME_TAG"; break; |
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case READ_ELEMENT_STATUS: what = "READ_ELEMENT_STATUS"; break; |
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case GPCMD_READ_CD_MSF: what = "READ CD MSF"; break; |
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case GPCMD_SCAN: what = "SCAN"; break; |
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case GPCMD_SET_SPEED: what = "SET CD SPEED"; break; |
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case GPCMD_MECHANISM_STATUS: what = "MECHANISM STATUS"; break; |
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case GPCMD_READ_CD: what = "READ CD"; break; |
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case 0xE1: what = "WRITE CONTINUE"; break; |
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case WRITE_LONG_2: what = "WRITE_LONG_2"; break; |
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default: what = "(unknown command)"; break; |
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} |
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usb_stor_dbg(us, "Command %s (%d bytes)\n", what, srb->cmd_len); |
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usb_stor_dbg(us, "bytes: %*ph\n", min_t(int, srb->cmd_len, 16), |
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(const unsigned char *)srb->cmnd); |
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} |
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void usb_stor_show_sense(const struct us_data *us, |
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unsigned char key, |
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unsigned char asc, |
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unsigned char ascq) |
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{ |
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const char *what, *keystr, *fmt; |
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keystr = scsi_sense_key_string(key); |
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what = scsi_extd_sense_format(asc, ascq, &fmt); |
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if (keystr == NULL) |
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keystr = "(Unknown Key)"; |
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if (what == NULL) |
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what = "(unknown ASC/ASCQ)"; |
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if (fmt) |
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usb_stor_dbg(us, "%s: %s (%s%x)\n", keystr, what, fmt, ascq); |
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else |
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usb_stor_dbg(us, "%s: %s\n", keystr, what); |
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} |
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void usb_stor_dbg(const struct us_data *us, const char *fmt, ...) |
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{ |
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va_list args; |
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va_start(args, fmt); |
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dev_vprintk_emit(LOGLEVEL_DEBUG, &us->pusb_dev->dev, fmt, args); |
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va_end(args); |
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} |
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EXPORT_SYMBOL_GPL(usb_stor_dbg);
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