From: Douglas Gilbert Date: Fri, 20 Jan 2012 00:30:00 +0000 (-0500) Subject: [SCSI] scsi_debug: GET LBA STATUS response length correction X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=de13e9654e308db6bde49c779410512ad9659bc0;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git [SCSI] scsi_debug: GET LBA STATUS response length correction The SCSI GET LBA STATUS command was introduced in SBC-3 revision 20 in September 2009. At that time the Parameter Data Length field in the response had an associated byte offset of 8. Then in SBC-3 revision 25 (October 2010) that byte offset was changed to 4. The sg_get_lba_status utility in sg3_utils version 1.33 (released earlier today) has been changed to calculate the newer response length. However the implementation of GET LBA STATUS command in the scsi_debug driver still uses the original byte offset. modify the Parameter Data Length field value in the GET LBA STATUS command response to comply with the change in SBC-3 revision 25 Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 6888b2ca5bfc..d2fd0efca565 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -2220,7 +2220,7 @@ static int resp_get_lba_status(struct scsi_cmnd * scmd, mapped = map_state(lba, &num); memset(arr, 0, SDEBUG_GET_LBA_STATUS_LEN); - put_unaligned_be32(16, &arr[0]); /* Parameter Data Length */ + put_unaligned_be32(20, &arr[0]); /* Parameter Data Length */ put_unaligned_be64(lba, &arr[8]); /* LBA */ put_unaligned_be32(num, &arr[16]); /* Number of blocks */ arr[20] = !mapped; /* mapped = 0, unmapped = 1 */