Hi all, After merging the cgroup tree, today's linux-next build (arm multi_v7_defconfig) failed like this: kernel/cgroup/cgroup.c: In function 'cgroup_local_stat_show': kernel/cgroup/cgroup.c:3699:15: error: implicit declaration of function 'cgroup_tryget_css'; did you mean 'cgroup_tryget'? [-Werror=implicit-function-declaration] 3699 | css = cgroup_tryget_css(cgrp, ss); | ^~~~~~~~~~~~~~~~~ | cgroup_tryget kernel/cgroup/cgroup.c:3699:13: warning: assignment to 'struct cgroup_subsys_state *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 3699 | css = cgroup_tryget_css(cgrp, ss); | ^ Caused by commit d1d4ff5d11a5 ("cgroup: put cgroup_tryget_css() inside CONFIG_CGROUP_SCHED") interacting with commit 677ea015f231 ("sched: add throttled time stat for throttled children") from the tip tree. I have reverted commit d1d4ff5d11a5 for today. -- Cheers, Stephen Rothwell