diff options
Diffstat (limited to 'net/sched/cls_cgroup.c')
| -rw-r--r-- | net/sched/cls_cgroup.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c index 5ee72a001df..af412ab2b47 100644 --- a/net/sched/cls_cgroup.c +++ b/net/sched/cls_cgroup.c @@ -23,16 +23,19 @@ #include <net/sock.h> #include <net/cls_cgroup.h> +static inline struct cgroup_cls_state *css_cls_state(struct cgroup_subsys_state *css) +{ + return css ? container_of(css, struct cgroup_cls_state, css) : NULL; +} + static inline struct cgroup_cls_state *cgrp_cls_state(struct cgroup *cgrp) { - return container_of(cgroup_css(cgrp, net_cls_subsys_id), - struct cgroup_cls_state, css); + return css_cls_state(cgroup_css(cgrp, net_cls_subsys_id)); } static inline struct cgroup_cls_state *task_cls_state(struct task_struct *p) { - return container_of(task_css(p, net_cls_subsys_id), - struct cgroup_cls_state, css); + return css_cls_state(task_css(p, net_cls_subsys_id)); } static struct cgroup_subsys_state *cgrp_css_alloc(struct cgroup *cgrp) |