1 files changed, 19 insertions, 0 deletions
diff --git a/xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/iodebug.c b/xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/iodebug.c
new file mode 100644
index 0000000000..701a07fe72
--- /dev/null
+++ b/xenolinux-2.4.21-pre4-sparse/arch/xeno/lib/iodebug.c
@@ -0,0 +1,19 @@
+#include <asm/io.h>
+
+void * __io_virt_debug(unsigned long x, const char *file, int line)
+{
+	if (x < PAGE_OFFSET) {
+		printk("io mapaddr 0x%05lx not valid at %s:%d!\n", x, file, line);
+		return __va(x);
+	}
+	return (void *)x;
+}
+
+unsigned long __io_phys_debug(unsigned long x, const char *file, int line)
+{
+	if (x < PAGE_OFFSET) {
+		printk("io mapaddr 0x%05lx not valid at %s:%d!\n", x, file, line);
+		return x;
+	}
+	return __pa(x);
+}