[S390] __page_to_pfn warnings

For CONFIG_SPARSEMEM_VMEMMAP=y on s390 I get warnings like

init/main.c: In function 'start_kernel':
init/main.c:641: warning: format '%08lx' expects type 'long unsigned int', but argument 2 has type 'int'

The warning can be suppressed with a cast to unsigned long in the
CONFIG_SPARSEMEM_VMEMMAP=y version of __page_to_pfn.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/include/asm-generic/memory_model.h b/include/asm-generic/memory_model.h
index 18546d8..36fa286 100644 (file)
--- a/include/asm-generic/memory_model.h
+++ b/include/asm-generic/memory_model.h
@@ -49,7 +49,7 @@
 
 /* memmap is virtually contigious.  */
 #define __pfn_to_page(pfn)     (vmemmap + (pfn))
-#define __page_to_pfn(page)    ((page) - vmemmap)
+#define __page_to_pfn(page)    (unsigned long)((page) - vmemmap)
 
 #elif defined(CONFIG_SPARSEMEM)
 /*