[PATCH v3 04/18] scsi: rename and move get_scsi_ml_byte()

Niklas Cassel
2023-01-24T19:03:49Z

SCSI has two different getters:
- get_XXX_byte() (in scsi_cmnd.h) which takes a struct scsi_cmnd *, and
- XXX_byte() (in scsi.h) which takes a scmd->result.
The proper name for get_scsi_ml_byte() should thus be without the get_
prefix, as it takes a scmd->result. Rename the function to rectify this.
(This change was suggested by Mike Christie.)

Additionally, move get_scsi_ml_byte() to scsi_priv.h since both scsi_lib.c
and scsi_error.c will need to use this helper in a follow-up patch.

Cc: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
drivers/scsi/scsi_lib.c | 7 +------
drivers/scsi/scsi_priv.h | 5 +++++
2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index abe93ec8b7d0..b1dcd7eb831e 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -577,11 +577,6 @@ static bool scsi_end_request(struct request *req, blk_status_t error,
return false;
}

-static inline u8 get_scsi_ml_byte(int result)
-{
- return (result >> 8) & 0xff;
-}
-
/**
* scsi_result_to_blk_status - translate a SCSI result code into blk_status_t
* @result: scsi error code
@@ -594,7 +589,7 @@ static blk_status_t scsi_result_to_blk_status(int result)
* Check the scsi-ml byte first in case we converted a host or status
* byte.
*/
- switch (get_scsi_ml_byte(result)) {
+ switch (scsi_ml_byte(result)) {
case SCSIML_STAT_OK:
break;
case SCSIML_STAT_RESV_CONFLICT:
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index 96284a0e13fe..74324fba4281 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -29,6 +29,11 @@ enum scsi_ml_status {
SCSIML_STAT_TGT_FAILURE = 0x04, /* Permanent target failure */
};

+static inline u8 scsi_ml_byte(int result)
+{
+ return (result >> 8) & 0xff;
+}
+
/*
* Scsi Error Handler Flags
*/
--
2.39.1