[PATCH] uml: fix a couple of warnings
Eliminate an unused variable warning in ptrace.c and a size mismatch warning
by adding a cast to __pa.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/asm-um/page.h b/include/asm-um/page.h
index 504ea8e..5afee8a 100644
--- a/include/asm-um/page.h
+++ b/include/asm-um/page.h
@@ -98,7 +98,13 @@
extern unsigned long to_phys(void *virt);
extern void *to_virt(unsigned long phys);
-#define __pa(virt) to_phys((void *) virt)
+
+/* Cast to unsigned long before casting to void * to avoid a warning from
+ * mmap_kmem about cutting a long long down to a void *. Not sure that
+ * casting is the right thing, but 32-bit UML can't have 64-bit virtual
+ * addresses
+ */
+#define __pa(virt) to_phys((void *) (unsigned long) virt)
#define __va(phys) to_virt((unsigned long) phys)
#define page_to_pfn(page) ((page) - mem_map)