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authorGeert Uytterhoeven <geert@linux-m68k.org>2011-05-07 20:53:16 +0200
committerGeert Uytterhoeven <geert@linux-m68k.org>2011-07-30 21:21:39 +0200
commit1c388919d89ca35741e9c4d3255adf87f76f0c06 (patch)
tree3858d97ce2f91cdf6ec3badafbf66ef058e178a7 /include/linux/ioport.h
parent88efd0bbc0fe403a9948e6f94cc48b9f15ee4861 (diff)
downloadop-kernel-dev-1c388919d89ca35741e9c4d3255adf87f76f0c06.zip
op-kernel-dev-1c388919d89ca35741e9c4d3255adf87f76f0c06.tar.gz
resources: Add lookup_resource()
Add a function to find an existing resource by a resource start address. This allows to implement simple allocators (with a malloc/free-alike API) on top of the resource system. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'include/linux/ioport.h')
-rw-r--r--include/linux/ioport.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index e9bb22c..63eb429 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -132,6 +132,7 @@ extern int allocate_resource(struct resource *root, struct resource *new,
resource_size_t,
resource_size_t),
void *alignf_data);
+struct resource *lookup_resource(struct resource *root, resource_size_t start);
int adjust_resource(struct resource *res, resource_size_t start,
resource_size_t size);
resource_size_t resource_alignment(struct resource *res);
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