diff options
| -rw-r--r-- | drivers/target/target_core_sbc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index 0d307c34f08e..9661a6626b2d 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -962,6 +962,11 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) if (!ops->execute_unmap) return TCM_UNSUPPORTED_SCSI_OPCODE; + if (!dev->dev_attrib.emulate_tpu) { + pr_err("Got UNMAP, but backend device has" + " emulate_tpu disabled\n"); + return TCM_UNSUPPORTED_SCSI_OPCODE; + } size = get_unaligned_be16(&cdb[7]); cmd->execute_cmd = ops->execute_unmap; break; |