[PATCH v2 09/40] scsi: sr: use 16-bits defined sense codes
From: Damien Le Moal <dlemoal@kernel.org>
Date: 2026-09-03 03:42:32
Also in:
linux-s390, linux-scsi, linux-usb
Subsystem:
scsi subsystem, the rest · Maintainers:
"James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
Refactor the SCSI CDROM driver to use the 16-bits sense_code field of struct scsi_sense_hdr and replace all hard-coded additional sense codes and additional sense code qualifiers with the enum values defined in include/scsi/scsi_sense.h. This helps with code clarity as the sense codes being processed are easier to test and self-documented. No functional change intended. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> --- drivers/scsi/sr.c | 3 ++- drivers/scsi/sr_ioctl.c | 29 +++++++++++------------------ 2 files changed, 13 insertions(+), 19 deletions(-)
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index c36c54ecd354..4f2e8d1be6da 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c@@ -253,7 +253,8 @@ static unsigned int sr_check_events(struct cdrom_device_info *cdi, * (ASC 0x3a). */ cd->media_present = scsi_status_is_good(ret) || - (scsi_sense_valid(&sshdr) && sshdr.asc != 0x3a); + (scsi_sense_valid(&sshdr) && + scsi_sense_asc(&sshdr) != ASC_MEDIUM_NOT_PRESENT); if (last_present != cd->media_present) cd->device->changed = 1;
diff --git a/drivers/scsi/sr_ioctl.c b/drivers/scsi/sr_ioctl.c
index 089653018d32..e4ec0f63cdcc 100644
--- a/drivers/scsi/sr_ioctl.c
+++ b/drivers/scsi/sr_ioctl.c@@ -226,9 +226,8 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc) err = -ENOMEDIUM; break; case NOT_READY: /* This happens if there is no disc in drive */ - if (sshdr->asc == 0x04 && - sshdr->ascq == 0x01) { - /* sense: Logical unit is in process of becoming ready */ + if (sshdr->sense_code == + LU_IS_IN_PROCESS_OF_BECOMING_READY) { if (!cgc->quiet) sr_printk(KERN_INFO, cd, "CDROM not ready yet.\n");
@@ -250,9 +249,7 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc) break; case ILLEGAL_REQUEST: err = -EIO; - if (sshdr->asc == 0x20 && - sshdr->ascq == 0x00) - /* sense: Invalid command operation code */ + if (sshdr->sense_code == INVALID_COMMAND_OP_CODE) err = -EDRIVE_CANT_DO_THIS; break; default:
@@ -303,9 +300,8 @@ int sr_drive_status(struct cdrom_device_info *cdi, int slot) if (!scsi_test_unit_ready(cd->device, SR_TIMEOUT, MAX_RETRIES, &sshdr)) return CDS_DISC_OK; - /* SK/ASC/ASCQ of 2/4/1 means "unit is becoming ready" */ - if (scsi_sense_valid(&sshdr) && sshdr.sense_key == NOT_READY - && sshdr.asc == 0x04 && sshdr.ascq == 0x01) + if (scsi_sense_valid(&sshdr) && sshdr.sense_key == NOT_READY && + sshdr.sense_code == LU_IS_IN_PROCESS_OF_BECOMING_READY) return CDS_DRIVE_NOT_READY; if (!cdrom_get_media_event(cdi, &med)) {
@@ -318,18 +314,18 @@ int sr_drive_status(struct cdrom_device_info *cdi, int slot) } /* - * SK/ASC/ASCQ of 2/4/2 means "initialization required" * Using CD_TRAY_OPEN results in an START_STOP_UNIT to close * the tray, which resolves the initialization requirement. */ - if (scsi_sense_valid(&sshdr) && sshdr.sense_key == NOT_READY - && sshdr.asc == 0x04 && sshdr.ascq == 0x02) + if (scsi_sense_valid(&sshdr) && sshdr.sense_key == NOT_READY && + sshdr.sense_code == LU_NOT_READY_INITIALIZING_COMMAND_REQUIRED) return CDS_TRAY_OPEN; /* * 0x04 is format in progress .. but there must be a disc present! */ - if (sshdr.sense_key == NOT_READY && sshdr.asc == 0x04) + if (sshdr.sense_key == NOT_READY && + scsi_sense_asc(&sshdr) == ASC_LU_NOT_READY) return CDS_DISC_OK; /*
@@ -338,13 +334,10 @@ int sr_drive_status(struct cdrom_device_info *cdi, int slot) * any other way to detect this... */ if (scsi_sense_valid(&sshdr) && - /* 0x3a is medium not present */ - sshdr.asc == 0x3a) + scsi_sense_asc(&sshdr) == ASC_MEDIUM_NOT_PRESENT) return CDS_NO_DISC; - else - return CDS_TRAY_OPEN; - return CDS_DRIVE_NOT_READY; + return CDS_TRAY_OPEN; } int sr_disk_status(struct cdrom_device_info *cdi)
--
2.55.0