1 files changed, 4 insertions, 2 deletions

diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h
index d194d544d694..f664e96f48c7 100644
--- a/arch/s390/include/asm/pci_io.h
+++ b/arch/s390/include/asm/pci_io.h
@@ -139,7 +139,8 @@ static inline int zpci_memcpy_fromio(void *dst,
         int size, rc = 0;
 
         while (n > 0) {
-                size = zpci_get_max_write_size((u64) src, (u64) dst, n, 8);
+                size = zpci_get_max_write_size((u64 __force) src,
+                                               (u64) dst, n, 8);
                 req = ZPCI_CREATE_REQ(entry->fh, entry->bar, size);
                 rc = zpci_read_single(req, dst, offset, size);
                 if (rc)
@@ -162,7 +163,8 @@ static inline int zpci_memcpy_toio(volatile void __iomem *dst,
                 return -EINVAL;
 
         while (n > 0) {
-                size = zpci_get_max_write_size((u64) dst, (u64) src, n, 128);
+                size = zpci_get_max_write_size((u64 __force) dst,
+                                               (u64) src, n, 128);
                 req = ZPCI_CREATE_REQ(entry->fh, entry->bar, size);
 
                 if (size > 8) /* main path */