On Fri, Feb 11, 2022 at 10:05:19PM +0300, Sergey Shtylyov wrote: > In xhci_hub_control(), there are many port register readbacks in several > branches of the *switch* statement which get duplicated right after that > *switch* by reading back the port register once more -- which is done to > flush the posted writes. Remove the redundant reads inside that *switch*. Doing a read right after a write is good, perhaps the one after the switch should be removed instead? thanks, greg k-h
