On Fri, Jun 25, 2021 at 06:05:50AM +0900, Takashi Sakamoto wrote: > > In kernel v5.10 or later, we can use 'list_entry_is_head()' macro added > by a commit e130816164e2 ("include/linux/list.h: add a macro to test if > entry is pointing to the head"). Someone needs to backport that all the way back... regards, dan carpenter