From bb1d1073a10fdc8547e3eb821ee2488260094b39 Mon Sep 17 00:00:00 2001 From: "brking@us.ibm.com" Date: Mon, 23 Jan 2006 15:03:22 -0600 Subject: [SCSI] Prevent scsi_execute_async from guessing cdb length When the scsi_execute_async interface was added it ended up reducing the flexibility of userspace to send arbitrary scsi commands through sg using SG_IO. The SG_IO interface allows userspace to specify the CDB length. This is now ignored in scsi_execute_async and it is guessed using the COMMAND_SIZE macro, which is not always correct, particularly for vendor specific commands. This patch adds a cmd_len parameter to the scsi_execute_async interface to allow the caller to specify the length of the CDB. Signed-off-by: Brian King Signed-off-by: James Bottomley --- include/scsi/scsi_device.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/scsi') diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index e94ca4d36035..290e3b4d2aec 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -275,7 +275,7 @@ extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd, int data_direction, void *buffer, unsigned bufflen, struct scsi_sense_hdr *, int timeout, int retries); extern int scsi_execute_async(struct scsi_device *sdev, - const unsigned char *cmd, int data_direction, + const unsigned char *cmd, int cmd_len, int data_direction, void *buffer, unsigned bufflen, int use_sg, int timeout, int retries, void *privdata, void (*done)(void *, char *, int, int), -- cgit v1.2.3-59-g8ed1b