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scsi: remove current_cmnd field from struct scsi_device

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The field is only used by the 53c700 driver, so move it into the
driver-private device data instead of having it in the common structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christoph Hellwig 2016-07-11 13:34:55 +09:00 committed by Martin K. Petersen
parent d9083160c2
commit 68350a886e
3 changed files with 6 additions and 4 deletions
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8
drivers/scsi/53c700.c
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@ -1120,9 +1120,9 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
"reselection is tag %d, slot %p(%d)\n",
hostdata->msgin[2], slot, slot->tag);
} else {
struct scsi_cmnd *SCp;
struct NCR_700_Device_Parameters *p = SDp->hostdata;
struct scsi_cmnd *SCp = p->current_cmnd;
SCp = SDp->current_cmnd;
if(unlikely(SCp == NULL)) {
sdev_printk(KERN_ERR, SDp,
"no saved request for untagged cmd\n");
@ -1825,9 +1825,11 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
CDEBUG(KERN_DEBUG, SCp, "sending out tag %d, slot %p\n",
slot->tag, slot);
} else {
struct NCR_700_Device_Parameters *p = SCp->device->hostdata;
slot->tag = SCSI_NO_TAG;
/* save current command for reselection */
SCp->device->current_cmnd = SCp;
p->current_cmnd = SCp;
}
/* sanity check: some of the commands generated by the mid-layer
* have an eccentric idea of their sc_data_direction */

1
drivers/scsi/53c700.h
View File

@ -82,6 +82,7 @@ struct NCR_700_Device_Parameters {
* cmnd[1], this could be in static storage */
unsigned char cmnd[MAX_COMMAND_SIZE];
__u8 depth;
struct scsi_cmnd *current_cmnd; /* currently active command */
};

1
include/scsi/scsi_device.h
View File

@ -94,7 +94,6 @@ struct scsi_device {
spinlock_t list_lock;
struct list_head cmd_list; /* queue of in use SCSI Command structures */
struct list_head starved_entry;
struct scsi_cmnd *current_cmnd; /* currently active command */
unsigned short queue_depth; /* How deep of a queue we want */
unsigned short max_queue_depth; /* max queue depth */
unsigned short last_queue_full_depth; /* These two are used by */