diff options
Diffstat (limited to 'drivers/s390/cio/css.h')
| -rw-r--r-- | drivers/s390/cio/css.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index 2c9107e20251..c9f3fb39ebeb 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -113,8 +113,7 @@ extern int for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *); void css_update_ssd_info(struct subchannel *sch); struct channel_subsystem { - u8 cssid; - int valid; + int cssid; struct channel_path *chps[__MAX_CHPID + 1]; struct device device; struct pgid global_pgid; @@ -130,6 +129,16 @@ struct channel_subsystem { extern struct channel_subsystem *channel_subsystems[]; +/* Dummy helper which needs to change once we support more than one css. */ +static inline struct channel_subsystem *css_by_id(u8 cssid) +{ + return channel_subsystems[0]; +} + +/* Dummy iterator which needs to change once we support more than one css. */ +#define for_each_css(css) \ + for ((css) = channel_subsystems[0]; (css); (css) = NULL) + /* Helper functions to build lists for the slow path. */ void css_schedule_eval(struct subchannel_id schid); void css_schedule_eval_all(void); |