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scsi: sd_zbc: Improve report zones error printout 

In the case of a report zones command failure, instead of simply printing
the host_byte and driver_byte values returned, print a message that is more
human readable and useful, adding sense codes too.

To do so, use the already defined sd_print_sense_hdr() and
sd_print_result() functions by moving the declaration of these functions
into sd.h.

Link: https://lore.kernel.org/r/20191125070518.951717-1-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
alistair/sunxi64-5.5-dsi
Damien Le Moal 2019-11-25 16:05:18 +09:00 committed by Martin K. Petersen
parent 45dc8f2d9c
commit a35989a072
3 changed files with 10 additions and 10 deletions
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9
drivers/scsi/sd.c
View File

@ -122,8 +122,6 @@ static void sd_eh_reset(struct scsi_cmnd *);
static int sd_eh_action(struct scsi_cmnd *, int);
static void sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer);
static void scsi_disk_release(struct device *cdev);
static void sd_print_sense_hdr(struct scsi_disk *, struct scsi_sense_hdr *);
static void sd_print_result(const struct scsi_disk *, const char *, int);
static DEFINE_IDA(sd_index_ida);
@ -3704,15 +3702,13 @@ static void __exit exit_sd(void)
module_init(init_sd);
module_exit(exit_sd);
static void sd_print_sense_hdr(struct scsi_disk *sdkp,
struct scsi_sense_hdr *sshdr)
void sd_print_sense_hdr(struct scsi_disk *sdkp, struct scsi_sense_hdr *sshdr)
{
scsi_print_sense_hdr(sdkp->device,
sdkp->disk ? sdkp->disk->disk_name : NULL, sshdr);
}
static void sd_print_result(const struct scsi_disk *sdkp, const char *msg,
int result)
void sd_print_result(const struct scsi_disk *sdkp, const char *msg, int result)
{
const char *hb_string = scsi_hostbyte_string(result);
const char *db_string = scsi_driverbyte_string(result);
@ -3727,4 +3723,3 @@ static void sd_print_result(const struct scsi_disk *sdkp, const char *msg,
"%s: Result: hostbyte=0x%02x driverbyte=0x%02x\n",
msg, host_byte(result), driver_byte(result));
}

3
drivers/scsi/sd.h
View File

@ -239,4 +239,7 @@ static inline void sd_zbc_complete(struct scsi_cmnd *cmd,
#endif /* CONFIG_BLK_DEV_ZONED */
void sd_print_sense_hdr(struct scsi_disk *sdkp, struct scsi_sense_hdr *sshdr);
void sd_print_result(const struct scsi_disk *sdkp, const char *msg, int result);
#endif /* _SCSI_DISK_H */

8
drivers/scsi/sd_zbc.c
View File

@ -87,9 +87,11 @@ static int sd_zbc_do_report_zones(struct scsi_disk *sdkp, unsigned char *buf,
timeout, SD_MAX_RETRIES, NULL);
if (result) {
sd_printk(KERN_ERR, sdkp,
"REPORT ZONES lba %llu failed with %d/%d\n",
(unsigned long long)lba,
host_byte(result), driver_byte(result));
"REPORT ZONES start lba %llu failed\n", lba);
sd_print_result(sdkp, "REPORT ZONES", result);
if (driver_byte(result) == DRIVER_SENSE &&
scsi_sense_valid(&sshdr))
sd_print_sense_hdr(sdkp, &sshdr);
return -EIO;
}