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[SCSI] remove scsi_wait_req

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This function has been superceeded by the block request based interfaces
and is unused (except for the uncompilable cpqfc driver).

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Christoph Hellwig 2005-10-29 01:09:12 +02:00 committed by James Bottomley
parent 474838d5e5
commit 262eef663b
2 changed files with 0 additions and 52 deletions
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49
drivers/scsi/scsi_lib.c
View file

@ -254,55 +254,6 @@ void scsi_do_req(struct scsi_request *sreq, const void *cmnd,
}
EXPORT_SYMBOL(scsi_do_req);
/* This is the end routine we get to if a command was never attached
* to the request. Simply complete the request without changing
* rq_status; this will cause a DRIVER_ERROR. */
static void scsi_wait_req_end_io(struct request *req)
{
BUG_ON(!req->waiting);
complete(req->waiting);
}
void scsi_wait_req(struct scsi_request *sreq, const void *cmnd, void *buffer,
unsigned bufflen, int timeout, int retries)
{
DECLARE_COMPLETION(wait);
int write = (sreq->sr_data_direction == DMA_TO_DEVICE);
struct request *req;
req = blk_get_request(sreq->sr_device->request_queue, write,
__GFP_WAIT);
if (bufflen && blk_rq_map_kern(sreq->sr_device->request_queue, req,
buffer, bufflen, __GFP_WAIT)) {
sreq->sr_result = DRIVER_ERROR << 24;
blk_put_request(req);
return;
}
req->flags |= REQ_NOMERGE;
req->waiting = &wait;
req->end_io = scsi_wait_req_end_io;
req->cmd_len = COMMAND_SIZE(((u8 *)cmnd)[0]);
req->sense = sreq->sr_sense_buffer;
req->sense_len = 0;
memcpy(req->cmd, cmnd, req->cmd_len);
req->timeout = timeout;
req->flags |= REQ_BLOCK_PC;
req->rq_disk = NULL;
blk_insert_request(sreq->sr_device->request_queue, req,
sreq->sr_data_direction == DMA_TO_DEVICE, NULL);
wait_for_completion(&wait);
sreq->sr_request->waiting = NULL;
sreq->sr_result = req->errors;
if (req->errors)
sreq->sr_result |= (DRIVER_ERROR << 24);
blk_put_request(req);
}
EXPORT_SYMBOL(scsi_wait_req);
/**
* scsi_execute - insert request and wait for the result
* @sdev: scsi device

3
include/scsi/scsi_request.h
View file

@ -47,9 +47,6 @@ struct scsi_request {
extern struct scsi_request *scsi_allocate_request(struct scsi_device *, gfp_t);
extern void scsi_release_request(struct scsi_request *);
extern void scsi_wait_req(struct scsi_request *, const void *cmnd,
void *buffer, unsigned bufflen,
int timeout, int retries);
extern void scsi_do_req(struct scsi_request *, const void *cmnd,
void *buffer, unsigned bufflen,
void (*done) (struct scsi_cmnd *),