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authorFinn Thain <fthain@linux-m68k.org>2022-02-22 10:09:42 +1100
committerMartin K. Petersen <martin.petersen@oracle.com>2022-02-27 21:34:02 -0500
commit2e1b3175f29c0299cc0eb2df6fb1f72e258ac5c1 (patch)
tree395c088463944bbd38039eb4ab77dd8d44b7d699 /drivers/scsi/mesh.c
parent5c139ce9e1c2737a37454b607912da619d09637e (diff)
downloadlinux-2e1b3175f29c0299cc0eb2df6fb1f72e258ac5c1.tar.gz
scsi: mesh: Stop using struct scsi_pointer
This driver doesn't use SCp.ptr to save a SCSI command data pointer which
means "scsi pointer" is a complete misnomer here. Only a few members of
struct scsi_pointer are used and the rest waste memory.  Avoid the "struct
foo { struct bar; };" silliness.

Link: https://lore.kernel.org/r/fbf930e64af5b15ca028dfe25b00fe933951f19b.1645484982.git.fthain@linux-m68k.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Finn Thain <fthain@linux-m68k.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/mesh.c')
-rw-r--r--drivers/scsi/mesh.c19
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c
index de9ae36def42..322d3ad38159 100644
--- a/drivers/scsi/mesh.c
+++ b/drivers/scsi/mesh.c
@@ -586,12 +586,12 @@ static void mesh_done(struct mesh_state *ms, int start_next)
 	ms->current_req = NULL;
 	tp->current_req = NULL;
 	if (cmd) {
-		struct scsi_pointer *scsi_pointer = mesh_scsi_pointer(cmd);
+		struct mesh_cmd_priv *mcmd = mesh_priv(cmd);
 
 		set_host_byte(cmd, ms->stat);
-		set_status_byte(cmd, scsi_pointer->Status);
+		set_status_byte(cmd, mcmd->status);
 		if (ms->stat == DID_OK)
-			scsi_msg_to_host_byte(cmd, scsi_pointer->Message);
+			scsi_msg_to_host_byte(cmd, mcmd->message);
 		if (DEBUG_TARGET(cmd)) {
 			printk(KERN_DEBUG "mesh_done: result = %x, data_ptr=%d, buflen=%d\n",
 			       cmd->result, ms->data_ptr, scsi_bufflen(cmd));
@@ -605,7 +605,7 @@ static void mesh_done(struct mesh_state *ms, int start_next)
 			}
 #endif
 		}
-		scsi_pointer->this_residual -= ms->data_ptr;
+		mcmd->this_residual -= ms->data_ptr;
 		scsi_done(cmd);
 	}
 	if (start_next) {
@@ -1173,7 +1173,7 @@ static void handle_msgin(struct mesh_state *ms)
 	if (ms->n_msgin < msgin_length(ms))
 		goto reject;
 	if (cmd)
-		mesh_scsi_pointer(cmd)->Message = code;
+		mesh_priv(cmd)->message = code;
 	switch (code) {
 	case COMMAND_COMPLETE:
 		break;
@@ -1264,7 +1264,7 @@ static void set_dma_cmds(struct mesh_state *ms, struct scsi_cmnd *cmd)
 	if (cmd) {
 		int nseg;
 
-		mesh_scsi_pointer(cmd)->this_residual = scsi_bufflen(cmd);
+		mesh_priv(cmd)->this_residual = scsi_bufflen(cmd);
 
 		nseg = scsi_dma_map(cmd);
 		BUG_ON(nseg < 0);
@@ -1594,13 +1594,12 @@ static void cmd_complete(struct mesh_state *ms)
 			break;
 		case statusing:
 			if (cmd) {
-				struct scsi_pointer *scsi_pointer =
-					mesh_scsi_pointer(cmd);
+				struct mesh_cmd_priv *mcmd = mesh_priv(cmd);
 
-				scsi_pointer->Status = mr->fifo;
+				mcmd->status = mr->fifo;
 				if (DEBUG_TARGET(cmd))
 					printk(KERN_DEBUG "mesh: status is %x\n",
-					       scsi_pointer->Status);
+					       mcmd->status);
 			}
 			ms->msgphase = msg_in;
 			break;