2 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index b22790268b64..e9bb22cba764 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -123,6 +123,7 @@ extern void reserve_region_with_split(struct resource *root,
 extern struct resource *insert_resource_conflict(struct resource *parent, struct resource *new);
 extern int insert_resource(struct resource *parent, struct resource *new);
 extern void insert_resource_expand_to_fit(struct resource *root, struct resource *new);
+extern void arch_remove_reservations(struct resource *avail);
 extern int allocate_resource(struct resource *root, struct resource *new,
                              resource_size_t size, resource_size_t min,
                              resource_size_t max, resource_size_t align,
diff --git a/kernel/resource.c b/kernel/resource.c
index 560659f7baef..798e2fae2a06 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -357,6 +357,10 @@ int __weak page_is_ram(unsigned long pfn)
         return walk_system_ram_range(pfn, 1, NULL, __is_ram) == 1;
 }
 
+void __weak arch_remove_reservations(struct resource *avail)
+{
+}
+
 static resource_size_t simple_align_resource(void *data,
                                              const struct resource *avail,
                                              resource_size_t size,
@@ -394,6 +398,7 @@ static int find_resource(struct resource *root, struct resource *new,
         struct resource *this = root->child;
         struct resource tmp = *new, avail, alloc;
 
+        tmp.flags = new->flags;
         tmp.start = root->start;
         /*
          * Skip past an allocated resource that starts at 0, since the assignment
@@ -410,6 +415,7 @@ static int find_resource(struct resource *root, struct resource *new,
                         tmp.end = root->end;
 
                 resource_clip(&tmp, min, max);
+                arch_remove_reservations(&tmp);
 
                 /* Check for overflow after ALIGN() */
                 avail = *new;