1REGION_INTERSECTS(9) Hardware Interfaces REGION_INTERSECTS(9)
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6 region_intersects - determine intersection of region with known
7 resources
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10 int region_intersects(resource_size_t start, size_t size,
11 const char * name, unsigned long flags);
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14 start
15 region start address
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17 size
18 size of region
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20 name
21 name of resource (in iomem_resource)
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23 flags
24 flags of resource (in iomem_resource)
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27 Check if the specified region partially overlaps or fully eclipses a
28 resource identified by name. Return REGION_DISJOINT if the region does
29 not overlap name, return REGION_MIXED if the region overlaps type and
30 another resource, and return REGION_INTERSECTS if the region overlaps
31 type and no other defined resource. Note, that REGION_INTERSECTS is
32 also returned in the case when the specified region overlaps with
33 undefined memory holes.
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36Kernel Hackers Manual 3.10 June 2019 REGION_INTERSECTS(9)