mirror of
https://github.com/tbsdtv/linux_media.git
synced 2025-07-23 20:51:03 +02:00
ce70fd9a55
Now that each scsi_request is backed by a scsi_cmnd, there is no need to indirect the CDB storage. Change all submitters of SCSI passthrough requests to store the CDB information directly in the scsi_cmnd, and while doing so allocate the full 32 bytes that cover all Linux supported SCSI hosts instead of requiring dynamic allocation for > 16 byte CDBs. On 64-bit systems this does not change the size of the scsi_cmnd at all, while on 32-bit systems it slightly increases it for now, but that increase will be made up by the removal of the remaining scsi_request fields. Link: https://lore.kernel.org/r/20220224175552.988286-4-hch@lst.de Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: John Garry <john.garry@huawei.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
21 lines
399 B
C
21 lines
399 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _SCSI_SCSI_REQUEST_H
|
|
#define _SCSI_SCSI_REQUEST_H
|
|
|
|
#include <linux/blk-mq.h>
|
|
|
|
struct scsi_request {
|
|
int result;
|
|
unsigned int sense_len;
|
|
unsigned int resid_len; /* residual count */
|
|
int retries;
|
|
void *sense;
|
|
};
|
|
|
|
static inline struct scsi_request *scsi_req(struct request *rq)
|
|
{
|
|
return blk_mq_rq_to_pdu(rq);
|
|
}
|
|
|
|
#endif /* _SCSI_SCSI_REQUEST_H */
|