[IA64] don't double >> PAGE_SHIFT pointer for /dev/kmem access

Don't PAGE_SHIFT pointer before handing it to virt_to_page() in
xlate_dev_kmem_ptr() as it results in a double shift.

Spotted by Bob Montgomery.

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

diff --git a/include/asm-ia64/uaccess.h b/include/asm-ia64/uaccess.h
index 9adb512..449c8c0 100644 (file)
--- a/include/asm-ia64/uaccess.h
+++ b/include/asm-ia64/uaccess.h
@@ -389,7 +389,7 @@ xlate_dev_kmem_ptr (char * p)
        struct page *page;
        char * ptr;
 
-       page = virt_to_page((unsigned long)p >> PAGE_SHIFT);
+       page = virt_to_page((unsigned long)p);
        if (PageUncached(page))
                ptr = (char *)__pa(p) + __IA64_UNCACHED_OFFSET;
        else