Hi, Po wen and Peter I must give this patch Ack, because: 1. “fHPBReset Flag” can be sent in both host control mode and device control mode. “buffer id=3 HpbWriteBuffer” can only be sent in device control mode. 2. “fHPBReset Flag” inactivate all the regions for the whole device. “buffer id=3 HpbWriteBuffer” can only inactivate all the regions for this LUN. The LUN is written in the UPIU header. In the ufshpb_init, we have set fHPBReset Flag. here doesn't need to issue “buffer id=3 HpbWriteBuffer” in the case of device mode. Regarding the reset flow issue we are talking about, I will submit a fix. Acked-by: Bean Huo <beanhuo@xxxxxxxxxx> Bean