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-rw-r--r--kernel/resource.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/kernel/resource.c b/kernel/resource.c
index 0bcebffc4e77..19f2357dfda3 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -22,6 +22,7 @@
22#include <linux/device.h> 22#include <linux/device.h>
23#include <linux/pfn.h> 23#include <linux/pfn.h>
24#include <linux/mm.h> 24#include <linux/mm.h>
25#include <linux/resource_ext.h>
25#include <asm/io.h> 26#include <asm/io.h>
26 27
27 28
@@ -1529,6 +1530,30 @@ int iomem_is_exclusive(u64 addr)
1529 return err; 1530 return err;
1530} 1531}
1531 1532
1533struct resource_entry *resource_list_create_entry(struct resource *res,
1534 size_t extra_size)
1535{
1536 struct resource_entry *entry;
1537
1538 entry = kzalloc(sizeof(*entry) + extra_size, GFP_KERNEL);
1539 if (entry) {
1540 INIT_LIST_HEAD(&entry->node);
1541 entry->res = res ? res : &entry->__res;
1542 }
1543
1544 return entry;
1545}
1546EXPORT_SYMBOL(resource_list_create_entry);
1547
1548void resource_list_free(struct list_head *head)
1549{
1550 struct resource_entry *entry, *tmp;
1551
1552 list_for_each_entry_safe(entry, tmp, head, node)
1553 resource_list_destroy_entry(entry);
1554}
1555EXPORT_SYMBOL(resource_list_free);
1556
1532static int __init strict_iomem(char *str) 1557static int __init strict_iomem(char *str)
1533{ 1558{
1534 if (strstr(str, "relaxed")) 1559 if (strstr(str, "relaxed"))