sh: build fixes for defconfigs.

Get all of the defconfigs building again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/mm/cache-debugfs.c b/arch/sh/mm/cache-debugfs.c
index a22d914..e0122bd 100644
--- a/arch/sh/mm/cache-debugfs.c
+++ b/arch/sh/mm/cache-debugfs.c
@@ -111,7 +111,7 @@
 
 static int cache_debugfs_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, cache_seq_show, inode->u.generic_ip);
+	return single_open(file, cache_seq_show, inode->i_private);
 }
 
 static struct file_operations cache_debugfs_fops = {