Specifically, instances of:
hci0: last event is not cmd complete (0x0f)
are spurious so the message shouldn't be appearing at all. Because 0x0f == HCI_EV_CMD_STATUS. Just ignore the message. Future kernels won't show that message thanks to this fix from Intel:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1629db9c75342325868243d6bca5853017d91cf8
Specifically, instances of:
hci0: last event is not cmd complete (0x0f)
are spurious so the message shouldn't be appearing at all. Because 0x0f == HCI_EV_CMD_STATUS. Just ignore the message. Future kernels won't show that message thanks to this fix from Intel:
https:/ /git.kernel. org/pub/ scm/linux/ kernel/ git/torvalds/ linux.git/ commit/ ?id=1629db9c753 42325868243d6bc a5853017d91cf8