From: Damien Le Moal <damien.lemoal@wdc.com>
Date: Mon, 25 Nov 2019 16:05:18 +0900
Subject: [PATCH] scsi: sd_zbc: Improve report zones error printout
Git-commit: a35989a0723c53b0364322e39c7a9495336ff7e6
Patch-Mainline: v5.5-rc1
References: bsc#1175995,jsc#SLE-15608
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>
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
drivers/scsi/sd.c | 9 ++-------
drivers/scsi/sd.h | 3 +++
drivers/scsi/sd_zbc.c | 8 +++++---
3 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 326e2877f169..93edccb1a737 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -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));
}
-
diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h
index 1eab779f812b..43dc0228f1ce 100644
--- a/drivers/scsi/sd.h
+++ b/drivers/scsi/sd.h
@@ -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 */
diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
index de4019dc0f0b..71db972bf71f 100644
--- a/drivers/scsi/sd_zbc.c
+++ b/drivers/scsi/sd_zbc.c
@@ -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;
}
--
2.16.4