Add enum for message byte codes and adopt set_msg_byte()'s
signature.
Signed-off-by: Johannes Thumshirn <jthumsh...@suse.de>
Suggested-by: Bart Van Assche <bart.vanass...@wdc.com>
---
include/scsi/scsi.h | 79 +++++++++++++++++++++++++-----------------------
include/scsi/scsi_cmnd.h | 3 +-
2 files changed, 44 insertions(+), 38 deletions(-)
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 2694faafaddf..f51320dfac9b 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -92,42 +92,43 @@ static inline int scsi_is_wlun(u64 lun)
/*
* MESSAGE CODES
*/
-
-#define COMMAND_COMPLETE 0x00
-#define EXTENDED_MESSAGE 0x01
-#define EXTENDED_MODIFY_DATA_POINTER 0x00
-#define EXTENDED_SDTR 0x01
-#define EXTENDED_EXTENDED_IDENTIFY 0x02 /* SCSI-I only */
-#define EXTENDED_WDTR 0x03
-#define EXTENDED_PPR 0x04
-#define EXTENDED_MODIFY_BIDI_DATA_PTR 0x05
-#define SAVE_POINTERS 0x02
-#define RESTORE_POINTERS 0x03
-#define DISCONNECT 0x04
-#define INITIATOR_ERROR 0x05
-#define ABORT_TASK_SET 0x06
-#define MESSAGE_REJECT 0x07
-#define NOP 0x08
-#define MSG_PARITY_ERROR 0x09
-#define LINKED_CMD_COMPLETE 0x0a
-#define LINKED_FLG_CMD_COMPLETE 0x0b
-#define TARGET_RESET 0x0c
-#define ABORT_TASK 0x0d
-#define CLEAR_TASK_SET 0x0e
-#define INITIATE_RECOVERY 0x0f /* SCSI-II only */
-#define RELEASE_RECOVERY 0x10 /* SCSI-II only */
-#define CLEAR_ACA 0x16
-#define LOGICAL_UNIT_RESET 0x17
-#define SIMPLE_QUEUE_TAG 0x20
-#define HEAD_OF_QUEUE_TAG 0x21
-#define ORDERED_QUEUE_TAG 0x22
-#define IGNORE_WIDE_RESIDUE 0x23
-#define ACA 0x24
-#define QAS_REQUEST 0x55
-
-/* Old SCSI2 names, don't use in new code */
-#define BUS_DEVICE_RESET TARGET_RESET
-#define ABORT ABORT_TASK_SET
+enum scsi_msg_byte {
+ COMMAND_COMPLETE = 0x00,
+ EXTENDED_MESSAGE = 0x01,
+ EXTENDED_MODIFY_DATA_POINTER = 0x00,
+ EXTENDED_SDTR = 0x01,
+ EXTENDED_EXTENDED_IDENTIFY = 0x02, /* SCSI-I only */
+ EXTENDED_WDTR = 0x03,
+ EXTENDED_PPR = 0x04,
+ EXTENDED_MODIFY_BIDI_DATA_PTR = 0x05,
+ SAVE_POINTERS = 0x02,
+ RESTORE_POINTERS = 0x03,
+ DISCONNECT = 0x04,
+ INITIATOR_ERROR = 0x05,
+ ABORT_TASK_SET = 0x06,
+ MESSAGE_REJECT = 0x07,
+ NOP = 0x08,
+ MSG_PARITY_ERROR = 0x09,
+ LINKED_CMD_COMPLETE = 0x0a,
+ LINKED_FLG_CMD_COMPLETE = 0x0b,
+ TARGET_RESET = 0x0c,
+ ABORT_TASK = 0x0d,
+ CLEAR_TASK_SET = 0x0e,
+ INITIATE_RECOVERY = 0x0f, /* SCSI-II only */
+ RELEASE_RECOVERY = 0x10, /* SCSI-II only */
+ CLEAR_ACA = 0x16,
+ LOGICAL_UNIT_RESET = 0x17,
+ SIMPLE_QUEUE_TAG = 0x20,
+ HEAD_OF_QUEUE_TAG = 0x21,
+ ORDERED_QUEUE_TAG = 0x22,
+ IGNORE_WIDE_RESIDUE = 0x23,
+ ACA = 0x24,
+ QAS_REQUEST = 0x55,
+
+ /* Old SCSI2 names, don't use in new code */
+ BUS_DEVICE_RESET = TARGET_RESET,
+ ABORT = ABORT_TASK_SET,
+};
/*
* Host byte codes
@@ -213,7 +214,11 @@ enum scsi_driver_byte {
* driver_byte = set by mid-level.
*/
#define status_byte(result) (((result) >> 1) & 0x7f)
-#define msg_byte(result) (((result) >> 8) & 0xff)
+static inline enum scsi_msg_byte msg_byte(int result)
+{
+ return (result >> 8) & 0xff;
+}
+
static inline enum scsi_host_byte host_byte(int result)
{
return (result >> 16) & 0xff;
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index da8ea89ccc0a..45d20d4a8f72 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -337,7 +337,8 @@ static inline struct scsi_data_buffer *scsi_prot(struct
scsi_cmnd *cmd)
#define scsi_for_each_prot_sg(cmd, sg, nseg, __i) \
for_each_sg(scsi_prot_sglist(cmd), sg, nseg, __i)
-static inline void set_msg_byte(struct scsi_cmnd *cmd, char status)
+static inline void set_msg_byte(struct scsi_cmnd *cmd,
+ enum scsi_msg_byte status)
{
cmd->result = (cmd->result & 0xffff00ff) | (status << 8);
}
--
2.16.3
