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| author |   Hannes Reinecke <hare@suse.de> | 2021-04-27 10:30:14 +0200 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2021-05-31 22:48:21 -0400 |
| commit | d0672a03e0af5dd4b07dc9175b38e44290722192 (patch) | |
| tree | d7b4890299d7b8ea026d14ed7775468acf3d30fe /include/scsi/scsi.h | |
| parent | scsi: core: Introduce scsi_build_sense() (diff) | |
| download | linux-dev-d0672a03e0af5dd4b07dc9175b38e44290722192.tar.xz linux-dev-d0672a03e0af5dd4b07dc9175b38e44290722192.zip | |
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>
Diffstat (limited to 'include/scsi/scsi.h')
| -rw-r--r-- | include/scsi/scsi.h | 15 |
1 files changed, 15 insertions, 0 deletions
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 |