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| author |   Bjorn Helgaas <bhelgaas@google.com> | 2014-02-04 19:32:28 -0800 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-02-26 14:42:09 -0700 |
| commit | 5edb93b89f6cc3089ee283656555e7a9ad36a8a0 (patch) | |
| tree | 496964f830aa06af8351de8645ec7e19ef931264 /lib/vsprintf.c | |
| parent | i2o: Use pci_bus_alloc_resource(), not allocate_resource() directly (diff) | |
| download | linux-dev-5edb93b89f6cc3089ee283656555e7a9ad36a8a0.tar.xz linux-dev-5edb93b89f6cc3089ee283656555e7a9ad36a8a0.zip | |
resource: Add resource_contains()
We have two identical copies of resource_contains() already, and more
places that could use it. This moves it to ioport.h where it can be
shared.
resource_contains(struct resource *r1, struct resource *r2) returns true
iff r1 and r2 are the same type (most callers already checked this
separately) and the r1 address range completely contains r2.
In addition, the new resource_contains() checks that both r1 and r2 have
addresses assigned to them. If a resource is IORESOURCE_UNSET, it doesn't
have a valid address and can't contain or be contained by another resource.
Some callers already check this or for res->start.
No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'lib/vsprintf.c')
0 files changed, 0 insertions, 0 deletions