Commit ba748d22 authored by Ingo Molnar's avatar Ingo Molnar
Browse files

x86: warn about RAM pages in ioremap()


Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 320a6b2e
......@@ -149,9 +149,11 @@ static void __iomem *__ioremap(resource_size_t phys_addr, unsigned long size,
for (pfn = phys_addr >> PAGE_SHIFT;
(pfn << PAGE_SHIFT) < last_addr; pfn++) {
if (page_is_ram(pfn) && pfn_valid(pfn) &&
!PageReserved(pfn_to_page(pfn)))
int is_ram = page_is_ram(pfn);
if (is_ram && pfn_valid(pfn) && !PageReserved(pfn_to_page(pfn)))
return NULL;
WARN_ON_ONCE(is_ram);
}
switch (mode) {
......
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment