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scsi: scsi_ioctl: Remove a very misleading comment

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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: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christoph Hellwig 2021-07-24 09:20:29 +02:00 committed by Martin K. Petersen
parent 33ff4ce45b
commit a9705477f5
1 changed files with 0 additions and 23 deletions
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23
drivers/scsi/scsi_ioctl.c
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@ -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)
{