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path: root/drivers/scsi/scsi_lib.c
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Diffstat (limited to 'drivers/scsi/scsi_lib.c')
-rw-r--r--drivers/scsi/scsi_lib.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index b86e259516a7..d776f13cd160 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -184,6 +184,10 @@ void scsi_queue_insert(struct scsi_cmnd *cmd, int reason)
__scsi_queue_insert(cmd, reason, true);
}
+/**
+ * scsi_failures_reset_retries - reset all failures to zero
+ * @failures: &struct scsi_failures with specific failure modes set
+ */
void scsi_failures_reset_retries(struct scsi_failures *failures)
{
struct scsi_failure *failure;
@@ -1217,6 +1221,15 @@ static void scsi_initialize_rq(struct request *rq)
cmd->retries = 0;
}
+/**
+ * scsi_alloc_request - allocate a block request and partially
+ * initialize its &scsi_cmnd
+ * @q: the device's request queue
+ * @opf: the request operation code
+ * @flags: block layer allocation flags
+ *
+ * Return: &struct request pointer on success or %NULL on failure
+ */
struct request *scsi_alloc_request(struct request_queue *q, blk_opf_t opf,
blk_mq_req_flags_t flags)
{
@@ -3368,14 +3381,16 @@ int scsi_vpd_lun_id(struct scsi_device *sdev, char *id, size_t id_len)
}
EXPORT_SYMBOL(scsi_vpd_lun_id);
-/*
+/**
* scsi_vpd_tpg_id - return a target port group identifier
* @sdev: SCSI device
+ * @rel_id: pointer to return relative target port in if not %NULL
*
* Returns the Target Port Group identifier from the information
- * froom VPD page 0x83 of the device.
+ * from VPD page 0x83 of the device.
+ * Optionally sets @rel_id to the relative target port on success.
*
- * Returns the identifier or error on failure.
+ * Return: the identifier or error on failure.
*/
int scsi_vpd_tpg_id(struct scsi_device *sdev, int *rel_id)
{