On 3/12/2018 3:35 PM, Logan Gunthorpe wrote: > - if (nvmeq->sq_cmds_io) I think you should keep the code as it is for the case where (!nvmeq->sq_cmds_is_io && nvmeq->sq_cmds_io) You are changing the behavior for NVMe drives with CMB buffers. You can change the if statement here with the statement above. > - memcpy_toio(&nvmeq->sq_cmds_io[tail], cmd, sizeof(*cmd)); > - else > - memcpy(&nvmeq->sq_cmds[tail], cmd, sizeof(*cmd)); > + memcpy(&nvmeq->sq_cmds[tail], cmd, sizeof(*cmd)); > -- Sinan Kaya Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.