[PATCH 13/42] scsi: add get_{status,host}_byte() accessor function

Hannes Reinecke
2021-04-21T17:50:25Z

Add accessor functions for the host and status byte.

Signed-off-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/scsi_cmnd.h | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index a1eb7732aa1b..0ac18a7d8ac6 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -316,6 +316,11 @@ static inline void set_status_byte(struct scsi_cmnd *cmd, char status)
cmd->result = (cmd->result & 0xffffff00) | status;
}

+static inline unsigned char get_status_byte(struct scsi_cmnd *cmd)
+{
+ return cmd->result & 0xff;
+}
+
static inline void set_msg_byte(struct scsi_cmnd *cmd, char status)
{
cmd->result = (cmd->result & 0xffff00ff) | (status << 8);
@@ -326,6 +331,11 @@ static inline void set_host_byte(struct scsi_cmnd *cmd, char status)
cmd->result = (cmd->result & 0xff00ffff) | (status << 16);
}

+static inline unsigned char get_host_byte(struct scsi_cmnd *cmd)
+{
+ return (cmd->result >> 16) & 0xff;
+}
+

static inline unsigned scsi_transfer_length(struct scsi_cmnd *scmd)
{
--
2.29.2