From: Hannes Reinecke <hare@suse.de>
Date: Tue, 27 Apr 2021 08:30:22 +0000 (+0200)
Subject: scsi: core: Add get_{status,host}_byte() accessor functions
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f6b5a697064900c207876c12af55e176ec83f49e;p=linux.git

scsi: core: Add get_{status,host}_byte() accessor functions

Add accessor functions for the host and status byte.

Link: https://lore.kernel.org/r/20210427083046.31620-17-hare@suse.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---

diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index e7986b9babafe..7609901160242 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -315,6 +315,11 @@ static inline void set_status_byte(struct scsi_cmnd *cmd, char status)
 	cmd->result = (cmd->result & 0xffffff00) | status;
 }
 
+static inline u8 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);
@@ -325,6 +330,11 @@ static inline void set_host_byte(struct scsi_cmnd *cmd, char status)
 	cmd->result = (cmd->result & 0xff00ffff) | (status << 16);
 }
 
+static inline u8 get_host_byte(struct scsi_cmnd *cmd)
+{
+	return (cmd->result >> 16) & 0xff;
+}
+
 
 static inline unsigned scsi_transfer_length(struct scsi_cmnd *scmd)
 {