diff options
Diffstat (limited to 'include/linux/ioport.h')
| -rw-r--r-- | include/linux/ioport.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/ioport.h b/include/linux/ioport.h index 40320eb5bc0e..ece1a8db309c 100644 --- a/include/linux/ioport.h +++ b/include/linux/ioport.h @@ -237,6 +237,16 @@ static inline bool resource_overlaps(struct resource *r1, struct resource *r2) } static inline bool +resource_intersection(struct resource *r1, struct resource *r2, struct resource *r) +{ + if (!resource_overlaps(r1, r2)) + return false; + r->start = max(r1->start, r2->start); + r->end = min(r1->end, r2->end); + return true; +} + +static inline bool resource_union(struct resource *r1, struct resource *r2, struct resource *r) { if (!resource_overlaps(r1, r2)) |