[PATCH v2 11/40] scsi: ch: use 16-bits defined sense codes
From: Damien Le Moal <dlemoal@kernel.org>
Date: 2026-09-03 03:42:37
Also in:
linux-ide, linux-s390, linux-scsi
Subsystem:
scsi subsystem, the rest · Maintainers:
"James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
Refactor the SCSI media changer driver to use the 16-bits sense_code field of struct scsi_sense_hdr and struct scsi_failure 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/ch.c | 53 ++++++++++++++++++++--------------------------- 1 file changed, 22 insertions(+), 31 deletions(-)
diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c
index b804291a36ff..87e51e50a741 100644
--- a/drivers/scsi/ch.c
+++ b/drivers/scsi/ch.c@@ -123,38 +123,32 @@ static DEFINE_IDR(ch_index_idr); static DEFINE_SPINLOCK(ch_index_lock); static const struct { - unsigned char sense; - unsigned char asc; - unsigned char ascq; - int errno; + u8 sense_key; + u16 sense_code; + int errno; } ch_err[] = { /* Just filled in what looks right. Hav'nt checked any standard paper for these errno assignments, so they may be wrong... */ { - .sense = ILLEGAL_REQUEST, - .asc = 0x21, - .ascq = 0x01, - .errno = EBADSLT, /* Invalid element address */ + .sense_key = ILLEGAL_REQUEST, + .sense_code = INVALID_ELEMENT_ADDRESS, + .errno = EBADSLT, },{ - .sense = ILLEGAL_REQUEST, - .asc = 0x28, - .ascq = 0x01, - .errno = EBADE, /* Import or export element accessed */ + .sense_key = ILLEGAL_REQUEST, + .sense_code = IMPORT_OR_EXPORT_ELEMENT_ACCESSED, + .errno = EBADE, },{ - .sense = ILLEGAL_REQUEST, - .asc = 0x3B, - .ascq = 0x0D, - .errno = EXFULL, /* Medium destination element full */ + .sense_key = ILLEGAL_REQUEST, + .sense_code = MEDIUM_DESTINATION_ELEMENT_FULL, + .errno = EXFULL, },{ - .sense = ILLEGAL_REQUEST, - .asc = 0x3B, - .ascq = 0x0E, - .errno = EBADE, /* Medium source element empty */ + .sense_key = ILLEGAL_REQUEST, + .sense_code = MEDIUM_SOURCE_ELEMENT_EMPTY, + .errno = EBADE, },{ - .sense = ILLEGAL_REQUEST, - .asc = 0x20, - .ascq = 0x00, - .errno = EBADRQC, /* Invalid command operation code */ + .sense_key = ILLEGAL_REQUEST, + .sense_code = INVALID_COMMAND_OP_CODE, + .errno = EBADRQC, },{ /* end of list */ }
@@ -167,12 +161,10 @@ static int ch_find_errno(struct scsi_sense_hdr *sshdr) int i,errno = 0; /* Check to see if additional sense information is available */ - if (scsi_sense_valid(sshdr) && - sshdr->asc != 0) { + if (scsi_sense_valid(sshdr) && scsi_sense_asc(sshdr) != 0) { for (i = 0; ch_err[i].errno != 0; i++) { - if (ch_err[i].sense == sshdr->sense_key && - ch_err[i].asc == sshdr->asc && - ch_err[i].ascq == sshdr->ascq) { + if (ch_err[i].sense_key == sshdr->sense_key && + ch_err[i].sense_code == sshdr->sense_code) { errno = -ch_err[i].errno; break; }
@@ -192,8 +184,7 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd, int cmd_len, struct scsi_failure failure_defs[] = { { .sense_key = UNIT_ATTENTION, - .asc = SCMD_FAILURE_ASC_ANY, - .ascq = SCMD_FAILURE_ASCQ_ANY, + .sense_code = SCMD_FAILURE_SENSE_CODE_ANY, .allowed = 3, .result = SAM_STAT_CHECK_CONDITION, },
--
2.55.0