for BDF in `lspci -d "*:*:*" | awk '{print $1}'`; do
  # skip if it doesn't support ACS
    sudo setpci -v -s ${BDF} ECAP_ACS+0x6.w > /dev/null 2>&1
      if [ $? -ne 0 ]; then
	          continue
		    fi
		      sudo setpci -v -s ${BDF} ECAP_ACS+0x6.w=0000
	      done