diff options
Diffstat (limited to 'drivers/s390/cio/idset.c')
| -rw-r--r-- | drivers/s390/cio/idset.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/s390/cio/idset.c b/drivers/s390/cio/idset.c index 5c88faf5b897..4d10981c7cc1 100644 --- a/drivers/s390/cio/idset.c +++ b/drivers/s390/cio/idset.c @@ -120,3 +120,13 @@ int idset_is_empty(struct idset *set) return 1; return 0; } + +void idset_add_set(struct idset *to, struct idset *from) +{ + unsigned long i, len; + + len = min(__BITOPS_WORDS(to->num_ssid * to->num_id), + __BITOPS_WORDS(from->num_ssid * from->num_id)); + for (i = 0; i < len ; i++) + to->bitmap[i] |= from->bitmap[i]; +} |
