aboutsummaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2008-03-03 09:37:41 +0100
committerIngo Molnar <mingo@elte.hu>2008-04-17 17:40:52 +0200
commitba748d221eb74b849453a94fdf0e1d0566b407d7 (patch)
treee84fe10f02e839ea55ebe71b7a29ca98eb7844f4 /arch
parent320a6b2efceccb652befca0b1c9a92d6e4256ef6 (diff)
x86: warn about RAM pages in ioremap()
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/mm/ioremap.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index e5608d38017..3d0a589d92c 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -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) {