Add compat_ioctl infrastructure

3 files changed, 18 insertions, 4 deletions

diff --git a/cryptodev_main.c b/cryptodev_main.c
index 0a20888..9c484f5 100644
--- a/cryptodev_main.c
+++ b/cryptodev_main.c
@@ -150,10 +150,7 @@ cryptodev_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	if (unlikely(!ncr))
 		BUG();
 
-	switch (cmd) {
-	default:
-		return -EINVAL;
-	}
+	return ncr_compat_ioctl(ncr, cmd, arg);
 }
 
 #endif /* CONFIG_COMPAT */
diff --git a/ncr-int.h b/ncr-int.h
index 53df9df..b7c6ed4 100644
--- a/ncr-int.h
+++ b/ncr-int.h
@@ -105,6 +105,8 @@ void* ncr_init_lists(void);
 void ncr_deinit_lists(struct ncr_lists *lst);
 
 int ncr_ioctl(struct ncr_lists *lst, unsigned int cmd, unsigned long arg);
+long ncr_compat_ioctl(struct ncr_lists *lst, unsigned int cmd,
+		      unsigned long arg);
 
 /* key derivation */
 int ncr_key_derive(struct ncr_lists *lst, void __user* arg);
diff --git a/ncr.c b/ncr.c
index 99d2786..9549b93 100644
--- a/ncr.c
+++ b/ncr.c
@@ -22,6 +22,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 
+#include <linux/compat.h>
 #include <linux/crypto.h>
 #include <linux/ioctl.h>
 #include <linux/mm.h>
@@ -163,3 +164,17 @@ ncr_ioctl(struct ncr_lists *lst, unsigned int cmd, unsigned long arg_)
 			return -EINVAL;
 	}
 }
+
+#ifdef CONFIG_COMPAT
+long
+ncr_compat_ioctl(struct ncr_lists *lst, unsigned int cmd, unsigned long arg_)
+{
+	if (unlikely(!lst))
+		BUG();
+
+	switch (cmd) {
+	default:
+		return -EINVAL;
+	}
+}
+#endif