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Subject[PATCH] x86, boot: fix warning on 32-bit builds
Building 32-bit threw a warning on kASLR enabled builds:

arch/x86/boot/compressed/aslr.c: In function ‘mem_avoid_overlap’:
arch/x86/boot/compressed/aslr.c:198:17: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
avoid.start = (u64)ptr;
^

This fixes the warning; unsigned long should have been used here.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
arch/x86/boot/compressed/aslr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/boot/compressed/aslr.c b/arch/x86/boot/compressed/aslr.c
index d39189ba7f8e..f302dc45ce08 100644
--- a/arch/x86/boot/compressed/aslr.c
+++ b/arch/x86/boot/compressed/aslr.c
@@ -195,7 +195,7 @@ static bool mem_avoid_overlap(struct mem_vector *img)
while (ptr) {
struct mem_vector avoid;

- avoid.start = (u64)ptr;
+ avoid.start = (unsigned long)ptr;
avoid.size = sizeof(*ptr) + ptr->len;

if (mem_overlaps(img, &avoid))
--
1.9.1

--
Kees Cook
Chrome OS Security
--
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