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linux/drivers/ide/ide-cd_verbose.c
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00

363 lines
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// SPDX-License-Identifier: GPL-2.0
/*
* Verbose error logging for ATAPI CD/DVD devices.
*
* Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov>
* Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org>
* Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de>
*/
#include <linux/kernel.h>
#include <linux/blkdev.h>
#include <linux/cdrom.h>
#include <linux/ide.h>
#include <scsi/scsi.h>
#include "ide-cd.h"
#ifndef CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS
void ide_cd_log_error(const char *name, struct request *failed_command,
struct request_sense *sense)
{
/* Suppress printing unit attention and `in progress of becoming ready'
errors when we're not being verbose. */
if (sense->sense_key == UNIT_ATTENTION ||
(sense->sense_key == NOT_READY && (sense->asc == 4 ||
sense->asc == 0x3a)))
return;
printk(KERN_ERR "%s: error code: 0x%02x sense_key: 0x%02x "
"asc: 0x%02x ascq: 0x%02x\n",
name, sense->error_code, sense->sense_key,
sense->asc, sense->ascq);
}
#else
/* The generic packet command opcodes for CD/DVD Logical Units,
* From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
static const struct {
unsigned short packet_command;
const char * const text;
} packet_command_texts[] = {
{ GPCMD_TEST_UNIT_READY, "Test Unit Ready" },
{ GPCMD_REQUEST_SENSE, "Request Sense" },
{ GPCMD_FORMAT_UNIT, "Format Unit" },
{ GPCMD_INQUIRY, "Inquiry" },
{ GPCMD_START_STOP_UNIT, "Start/Stop Unit" },
{ GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL, "Prevent/Allow Medium Removal" },
{ GPCMD_READ_FORMAT_CAPACITIES, "Read Format Capacities" },
{ GPCMD_READ_CDVD_CAPACITY, "Read Cd/Dvd Capacity" },
{ GPCMD_READ_10, "Read 10" },
{ GPCMD_WRITE_10, "Write 10" },
{ GPCMD_SEEK, "Seek" },
{ GPCMD_WRITE_AND_VERIFY_10, "Write and Verify 10" },
{ GPCMD_VERIFY_10, "Verify 10" },
{ GPCMD_FLUSH_CACHE, "Flush Cache" },
{ GPCMD_READ_SUBCHANNEL, "Read Subchannel" },
{ GPCMD_READ_TOC_PMA_ATIP, "Read Table of Contents" },
{ GPCMD_READ_HEADER, "Read Header" },
{ GPCMD_PLAY_AUDIO_10, "Play Audio 10" },
{ GPCMD_GET_CONFIGURATION, "Get Configuration" },
{ GPCMD_PLAY_AUDIO_MSF, "Play Audio MSF" },
{ GPCMD_PLAYAUDIO_TI, "Play Audio TrackIndex" },
{ GPCMD_GET_EVENT_STATUS_NOTIFICATION,
"Get Event Status Notification" },
{ GPCMD_PAUSE_RESUME, "Pause/Resume" },
{ GPCMD_STOP_PLAY_SCAN, "Stop Play/Scan" },
{ GPCMD_READ_DISC_INFO, "Read Disc Info" },
{ GPCMD_READ_TRACK_RZONE_INFO, "Read Track Rzone Info" },
{ GPCMD_RESERVE_RZONE_TRACK, "Reserve Rzone Track" },
{ GPCMD_SEND_OPC, "Send OPC" },
{ GPCMD_MODE_SELECT_10, "Mode Select 10" },
{ GPCMD_REPAIR_RZONE_TRACK, "Repair Rzone Track" },
{ GPCMD_MODE_SENSE_10, "Mode Sense 10" },
{ GPCMD_CLOSE_TRACK, "Close Track" },
{ GPCMD_BLANK, "Blank" },
{ GPCMD_SEND_EVENT, "Send Event" },
{ GPCMD_SEND_KEY, "Send Key" },
{ GPCMD_REPORT_KEY, "Report Key" },
{ GPCMD_LOAD_UNLOAD, "Load/Unload" },
{ GPCMD_SET_READ_AHEAD, "Set Read-ahead" },
{ GPCMD_READ_12, "Read 12" },
{ GPCMD_GET_PERFORMANCE, "Get Performance" },
{ GPCMD_SEND_DVD_STRUCTURE, "Send DVD Structure" },
{ GPCMD_READ_DVD_STRUCTURE, "Read DVD Structure" },
{ GPCMD_SET_STREAMING, "Set Streaming" },
{ GPCMD_READ_CD_MSF, "Read CD MSF" },
{ GPCMD_SCAN, "Scan" },
{ GPCMD_SET_SPEED, "Set Speed" },
{ GPCMD_PLAY_CD, "Play CD" },
{ GPCMD_MECHANISM_STATUS, "Mechanism Status" },
{ GPCMD_READ_CD, "Read CD" },
};
/* From Table 303 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
static const char * const sense_key_texts[16] = {
"No sense data",
"Recovered error",
"Not ready",
"Medium error",
"Hardware error",
"Illegal request",
"Unit attention",
"Data protect",
"Blank check",
"(reserved)",
"(reserved)",
"Aborted command",
"(reserved)",
"(reserved)",
"Miscompare",
"(reserved)",
};
/* From Table 304 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
static const struct {
unsigned long asc_ascq;
const char * const text;
} sense_data_texts[] = {
{ 0x000000, "No additional sense information" },
{ 0x000011, "Play operation in progress" },
{ 0x000012, "Play operation paused" },
{ 0x000013, "Play operation successfully completed" },
{ 0x000014, "Play operation stopped due to error" },
{ 0x000015, "No current audio status to return" },
{ 0x010c0a, "Write error - padding blocks added" },
{ 0x011700, "Recovered data with no error correction applied" },
{ 0x011701, "Recovered data with retries" },
{ 0x011702, "Recovered data with positive head offset" },
{ 0x011703, "Recovered data with negative head offset" },
{ 0x011704, "Recovered data with retries and/or CIRC applied" },
{ 0x011705, "Recovered data using previous sector ID" },
{ 0x011800, "Recovered data with error correction applied" },
{ 0x011801, "Recovered data with error correction and retries applied"},
{ 0x011802, "Recovered data - the data was auto-reallocated" },
{ 0x011803, "Recovered data with CIRC" },
{ 0x011804, "Recovered data with L-EC" },
{ 0x015d00, "Failure prediction threshold exceeded"
" - Predicted logical unit failure" },
{ 0x015d01, "Failure prediction threshold exceeded"
" - Predicted media failure" },
{ 0x015dff, "Failure prediction threshold exceeded - False" },
{ 0x017301, "Power calibration area almost full" },
{ 0x020400, "Logical unit not ready - cause not reportable" },
/* Following is misspelled in ATAPI 2.6, _and_ in Mt. Fuji */
{ 0x020401, "Logical unit not ready"
" - in progress [sic] of becoming ready" },
{ 0x020402, "Logical unit not ready - initializing command required" },
{ 0x020403, "Logical unit not ready - manual intervention required" },
{ 0x020404, "Logical unit not ready - format in progress" },
{ 0x020407, "Logical unit not ready - operation in progress" },
{ 0x020408, "Logical unit not ready - long write in progress" },
{ 0x020600, "No reference position found (media may be upside down)" },
{ 0x023000, "Incompatible medium installed" },
{ 0x023a00, "Medium not present" },
{ 0x025300, "Media load or eject failed" },
{ 0x025700, "Unable to recover table of contents" },
{ 0x030300, "Peripheral device write fault" },
{ 0x030301, "No write current" },
{ 0x030302, "Excessive write errors" },
{ 0x030c00, "Write error" },
{ 0x030c01, "Write error - Recovered with auto reallocation" },
{ 0x030c02, "Write error - auto reallocation failed" },
{ 0x030c03, "Write error - recommend reassignment" },
{ 0x030c04, "Compression check miscompare error" },
{ 0x030c05, "Data expansion occurred during compress" },
{ 0x030c06, "Block not compressible" },
{ 0x030c07, "Write error - recovery needed" },
{ 0x030c08, "Write error - recovery failed" },
{ 0x030c09, "Write error - loss of streaming" },
{ 0x031100, "Unrecovered read error" },
{ 0x031106, "CIRC unrecovered error" },
{ 0x033101, "Format command failed" },
{ 0x033200, "No defect spare location available" },
{ 0x033201, "Defect list update failure" },
{ 0x035100, "Erase failure" },
{ 0x037200, "Session fixation error" },
{ 0x037201, "Session fixation error writin lead-in" },
{ 0x037202, "Session fixation error writin lead-out" },
{ 0x037300, "CD control error" },
{ 0x037302, "Power calibration area is full" },
{ 0x037303, "Power calibration area error" },
{ 0x037304, "Program memory area / RMA update failure" },
{ 0x037305, "Program memory area / RMA is full" },
{ 0x037306, "Program memory area / RMA is (almost) full" },
{ 0x040200, "No seek complete" },
{ 0x040300, "Write fault" },
{ 0x040900, "Track following error" },
{ 0x040901, "Tracking servo failure" },
{ 0x040902, "Focus servo failure" },
{ 0x040903, "Spindle servo failure" },
{ 0x041500, "Random positioning error" },
{ 0x041501, "Mechanical positioning or changer error" },
{ 0x041502, "Positioning error detected by read of medium" },
{ 0x043c00, "Mechanical positioning or changer error" },
{ 0x044000, "Diagnostic failure on component (ASCQ)" },
{ 0x044400, "Internal CD/DVD logical unit failure" },
{ 0x04b600, "Media load mechanism failed" },
{ 0x051a00, "Parameter list length error" },
{ 0x052000, "Invalid command operation code" },
{ 0x052100, "Logical block address out of range" },
{ 0x052102, "Invalid address for write" },
{ 0x052400, "Invalid field in command packet" },
{ 0x052600, "Invalid field in parameter list" },
{ 0x052601, "Parameter not supported" },
{ 0x052602, "Parameter value invalid" },
{ 0x052700, "Write protected media" },
{ 0x052c00, "Command sequence error" },
{ 0x052c03, "Current program area is not empty" },
{ 0x052c04, "Current program area is empty" },
{ 0x053001, "Cannot read medium - unknown format" },
{ 0x053002, "Cannot read medium - incompatible format" },
{ 0x053900, "Saving parameters not supported" },
{ 0x054e00, "Overlapped commands attempted" },
{ 0x055302, "Medium removal prevented" },
{ 0x055500, "System resource failure" },
{ 0x056300, "End of user area encountered on this track" },
{ 0x056400, "Illegal mode for this track or incompatible medium" },
{ 0x056f00, "Copy protection key exchange failure"
" - Authentication failure" },
{ 0x056f01, "Copy protection key exchange failure - Key not present" },
{ 0x056f02, "Copy protection key exchange failure"
" - Key not established" },
{ 0x056f03, "Read of scrambled sector without authentication" },
{ 0x056f04, "Media region code is mismatched to logical unit" },
{ 0x056f05, "Drive region must be permanent"
" / region reset count error" },
{ 0x057203, "Session fixation error - incomplete track in session" },
{ 0x057204, "Empty or partially written reserved track" },
{ 0x057205, "No more RZONE reservations are allowed" },
{ 0x05bf00, "Loss of streaming" },
{ 0x062800, "Not ready to ready transition, medium may have changed" },
{ 0x062900, "Power on, reset or hardware reset occurred" },
{ 0x062a00, "Parameters changed" },
{ 0x062a01, "Mode parameters changed" },
{ 0x062e00, "Insufficient time for operation" },
{ 0x063f00, "Logical unit operating conditions have changed" },
{ 0x063f01, "Microcode has been changed" },
{ 0x065a00, "Operator request or state change input (unspecified)" },
{ 0x065a01, "Operator medium removal request" },
{ 0x0bb900, "Play operation aborted" },
/* Here we use 0xff for the key (not a valid key) to signify
* that these can have _any_ key value associated with them... */
{ 0xff0401, "Logical unit is in process of becoming ready" },
{ 0xff0400, "Logical unit not ready, cause not reportable" },
{ 0xff0402, "Logical unit not ready, initializing command required" },
{ 0xff0403, "Logical unit not ready, manual intervention required" },
{ 0xff0500, "Logical unit does not respond to selection" },
{ 0xff0800, "Logical unit communication failure" },
{ 0xff0802, "Logical unit communication parity error" },
{ 0xff0801, "Logical unit communication time-out" },
{ 0xff2500, "Logical unit not supported" },
{ 0xff4c00, "Logical unit failed self-configuration" },
{ 0xff3e00, "Logical unit has not self-configured yet" },
};
void ide_cd_log_error(const char *name, struct request *failed_command,
struct request_sense *sense)
{
int i;
const char *s = "bad sense key!";
char buf[80];
printk(KERN_ERR "ATAPI device %s:\n", name);
if (sense->error_code == 0x70)
printk(KERN_CONT " Error: ");
else if (sense->error_code == 0x71)
printk(" Deferred Error: ");
else if (sense->error_code == 0x7f)
printk(KERN_CONT " Vendor-specific Error: ");
else
printk(KERN_CONT " Unknown Error Type: ");
if (sense->sense_key < ARRAY_SIZE(sense_key_texts))
s = sense_key_texts[sense->sense_key];
printk(KERN_CONT "%s -- (Sense key=0x%02x)\n", s, sense->sense_key);
if (sense->asc == 0x40) {
sprintf(buf, "Diagnostic failure on component 0x%02x",
sense->ascq);
s = buf;
} else {
int lo = 0, mid, hi = ARRAY_SIZE(sense_data_texts);
unsigned long key = (sense->sense_key << 16);
key |= (sense->asc << 8);
if (!(sense->ascq >= 0x80 && sense->ascq <= 0xdd))
key |= sense->ascq;
s = NULL;
while (hi > lo) {
mid = (lo + hi) / 2;
if (sense_data_texts[mid].asc_ascq == key ||
sense_data_texts[mid].asc_ascq == (0xff0000|key)) {
s = sense_data_texts[mid].text;
break;
} else if (sense_data_texts[mid].asc_ascq > key)
hi = mid;
else
lo = mid + 1;
}
}
if (s == NULL) {
if (sense->asc > 0x80)
s = "(vendor-specific error)";
else
s = "(reserved error code)";
}
printk(KERN_ERR " %s -- (asc=0x%02x, ascq=0x%02x)\n",
s, sense->asc, sense->ascq);
if (failed_command != NULL) {
int lo = 0, mid, hi = ARRAY_SIZE(packet_command_texts);
s = NULL;
while (hi > lo) {
mid = (lo + hi) / 2;
if (packet_command_texts[mid].packet_command ==
scsi_req(failed_command)->cmd[0]) {
s = packet_command_texts[mid].text;
break;
}
if (packet_command_texts[mid].packet_command >
scsi_req(failed_command)->cmd[0])
hi = mid;
else
lo = mid + 1;
}
printk(KERN_ERR " The failed \"%s\" packet command "
"was: \n \"", s);
for (i = 0; i < BLK_MAX_CDB; i++)
printk(KERN_CONT "%02x ", scsi_req(failed_command)->cmd[i]);
printk(KERN_CONT "\"\n");
}
/* The SKSV bit specifies validity of the sense_key_specific
* in the next two commands. It is bit 7 of the first byte.
* In the case of NOT_READY, if SKSV is set the drive can
* give us nice ETA readings.
*/
if (sense->sense_key == NOT_READY && (sense->sks[0] & 0x80)) {
int progress = (sense->sks[1] << 8 | sense->sks[2]) * 100;
printk(KERN_ERR " Command is %02d%% complete\n",
progress / 0xffff);
}
if (sense->sense_key == ILLEGAL_REQUEST &&
(sense->sks[0] & 0x80) != 0) {
printk(KERN_ERR " Error in %s byte %d",
(sense->sks[0] & 0x40) != 0 ?
"command packet" : "command data",
(sense->sks[1] << 8) + sense->sks[2]);
if ((sense->sks[0] & 0x40) != 0)
printk(KERN_CONT " bit %d", sense->sks[0] & 0x07);
printk(KERN_CONT "\n");
}
}
#endif
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