target: pass sense_reason as a return value
Pass the sense reason as an explicit return value from the I/O submission
path instead of storing it in struct se_cmd and using negative return
values. This cleans up a lot of the code pathes, and with the sparse
annotations for the new sense_reason_t type allows for much better
error checking.
(nab: Convert spc_emulate_modesense + spc_emulate_modeselect to use
sense_reason_t with Roland's MODE SELECT changes)
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/target/target_core_ua.h b/drivers/target/target_core_ua.h
index 6e6b034..0204952 100644
--- a/drivers/target/target_core_ua.h
+++ b/drivers/target/target_core_ua.h
@@ -26,7 +26,7 @@
extern struct kmem_cache *se_ua_cache;
-extern int core_scsi3_ua_check(struct se_cmd *, unsigned char *);
+extern sense_reason_t target_scsi3_ua_check(struct se_cmd *);
extern int core_scsi3_ua_allocate(struct se_node_acl *, u32, u8, u8);
extern void core_scsi3_ua_release_all(struct se_dev_entry *);
extern void core_scsi3_ua_for_check_condition(struct se_cmd *, u8 *, u8 *);
