diff options
| author | Hannes Reinecke <hare@suse.de> | 2021-04-27 11:30:14 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-06-01 05:48:21 +0300 |
| commit | d0672a03e0af5dd4b07dc9175b38e44290722192 (patch) | |
| tree | d7b4890299d7b8ea026d14ed7775468acf3d30fe | |
| parent | f2b1e9c6f867ec8f929e96ba4e4010e267587448 (diff) | |
| download | linux-d0672a03e0af5dd4b07dc9175b38e44290722192.tar.xz | |
scsi: core: Introduce scsi_status_is_check_condition()
Add a helper function scsi_status_is_check_condition() to encapsulate the
frequent checks for SAM_STAT_CHECK_CONDITION.
Link: https://lore.kernel.org/r/20210427083046.31620-9-hare@suse.de
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvscsi.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/scsi.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/scsi_error.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 2 | ||||
| -rw-r--r-- | include/scsi/scsi.h | 15 |
5 files changed, 20 insertions, 5 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index e75b0068ad84..e6a3eaaa57d9 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -1005,7 +1005,7 @@ static void handle_cmd_rsp(struct srp_event_struct *evt_struct) if (cmnd) { cmnd->result |= rsp->status; - if (((cmnd->result >> 1) & 0x1f) == CHECK_CONDITION) + if (scsi_status_is_check_condition(cmnd->result)) memcpy(cmnd->sense_buffer, rsp->data, be32_to_cpu(rsp->sense_data_len)); diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 99dc6ec0b6e5..1ce46e6e6483 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -144,7 +144,7 @@ void scsi_log_completion(struct scsi_cmnd *cmd, int disposition) (level > 1)) { scsi_print_result(cmd, "Done", disposition); scsi_print_command(cmd); - if (status_byte(cmd->result) == CHECK_CONDITION) + if (scsi_status_is_check_condition(cmd->result)) scsi_print_sense(cmd); if (level > 3) scmd_printk(KERN_INFO, cmd, diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index d8fafe77dbbe..0967021cc06e 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -1258,7 +1258,7 @@ int scsi_eh_get_sense(struct list_head *work_q, current->comm)); break; } - if (status_byte(scmd->result) != CHECK_CONDITION) + if (!scsi_status_is_check_condition(scmd->result)) /* * don't request sense if there's no check condition * status because the error we're processing isn't one @@ -1774,7 +1774,7 @@ int scsi_noretry_cmd(struct scsi_cmnd *scmd) return (scmd->request->cmd_flags & REQ_FAILFAST_DRIVER); } - if (status_byte(scmd->result) != CHECK_CONDITION) + if (!scsi_status_is_check_condition(scmd->result)) return 0; check_type: diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 9b24913a4d07..d6b0cb2ab292 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -2164,7 +2164,7 @@ scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage, goto retry; } } - if ((status_byte(result) == CHECK_CONDITION) && + if (scsi_status_is_check_condition(result) && sshdr->sense_key == UNIT_ATTENTION && retry_count) { retry_count--; diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 6dc2d1b3735e..57f0ca00ddda 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -62,6 +62,21 @@ static inline int scsi_is_wlun(u64 lun) return (lun & 0xff00) == SCSI_W_LUN_BASE; } +/** + * scsi_status_is_check_condition - check the status return. + * + * @status: the status passed up from the driver (including host and + * driver components) + * + * This returns true if the status code is SAM_STAT_CHECK_CONDITION. + */ +static inline int scsi_status_is_check_condition(int status) +{ + if (status < 0) + return false; + status &= 0xfe; + return status == SAM_STAT_CHECK_CONDITION; +} /* * MESSAGE CODES |