X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=security%2Fsecurity.c;h=840a3d58a29028a673adc759b631d09425d427e9;hb=da9c33a70f095d5d55c36d0bfeba969e31de08ae;hp=23b129d482a7c8f478d4fe8a709c7f4a7ed47ab8;hpb=5c5e0e81202667f9c052edb99699818363b19129;p=platform%2Fkernel%2Flinux-rpi.git

diff --git a/security/security.c b/security/security.c
index 23b129d..840a3d5 100644
--- a/security/security.c
+++ b/security/security.c
@@ -2648,6 +2648,24 @@ int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 }
 EXPORT_SYMBOL_GPL(security_file_ioctl);
 
+/**
+ * security_file_ioctl_compat() - Check if an ioctl is allowed in compat mode
+ * @file: associated file
+ * @cmd: ioctl cmd
+ * @arg: ioctl arguments
+ *
+ * Compat version of security_file_ioctl() that correctly handles 32-bit
+ * processes running on 64-bit kernels.
+ *
+ * Return: Returns 0 if permission is granted.
+ */
+int security_file_ioctl_compat(struct file *file, unsigned int cmd,
+			       unsigned long arg)
+{
+	return call_int_hook(file_ioctl_compat, 0, file, cmd, arg);
+}
+EXPORT_SYMBOL_GPL(security_file_ioctl_compat);
+
 static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
 {
 	/*