Commit a9705477 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Martin K. Petersen
Browse files

scsi: scsi_ioctl: Remove a very misleading comment 

Remove the comment above ioctl_internal_command() which doesn't document
this function at all.

Link: https://lore.kernel.org/r/20210724072033.1284840-21-hch@lst.de


Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 33ff4ce4

drivers/scsi/scsi_ioctl.c

+0 −23
Original line number Diff line number Diff line
@@ -64,29 +64,6 @@ static int ioctl_probe(struct Scsi_Host *host, void __user *buffer) 
	return 1;

}



/*



 * The SCSI_IOCTL_SEND_COMMAND ioctl sends a command out to the SCSI host.

 * The IOCTL_NORMAL_TIMEOUT and NORMAL_RETRIES  variables are used.  

 * 

 * dev is the SCSI device struct ptr, *(int *) arg is the length of the

 * input data, if any, not including the command string & counts, 

 * *((int *)arg + 1) is the output buffer size in bytes.

 * 

 * *(char *) ((int *) arg)[2] the actual command byte.   

 * 

 * Note that if more than MAX_BUF bytes are requested to be transferred,

 * the ioctl will fail with error EINVAL.

 * 

 * This size *does not* include the initial lengths that were passed.

 * 

 * The SCSI command is read from the memory location immediately after the

 * length words, and the input data is right after the command.  The SCSI

 * routines know the command size based on the opcode decode.  

 * 

 * The output area is then filled in starting from the command byte. 

 */



static int ioctl_internal_command(struct scsi_device *sdev, char *cmd,

				  int timeout, int retries)

{