diff --git a/ap/os/linux/linux-3.4.x/crypto/compress.c b/ap/os/linux/linux-3.4.x/crypto/compress.c
new file mode 100644
index 0000000..c33f076
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/crypto/compress.c
@@ -0,0 +1,48 @@
+/*
+ * Cryptographic API.
+ *
+ * Compression operations.
+ *
+ * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+#include <linux/types.h>
+#include <linux/crypto.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include "internal.h"
+
+static int crypto_compress(struct crypto_tfm *tfm,
+                            const u8 *src, unsigned int slen,
+                            u8 *dst, unsigned int *dlen)
+{
+	return tfm->__crt_alg->cra_compress.coa_compress(tfm, src, slen, dst,
+	                                                 dlen);
+}
+
+static int crypto_decompress(struct crypto_tfm *tfm,
+                             const u8 *src, unsigned int slen,
+                             u8 *dst, unsigned int *dlen)
+{
+	return tfm->__crt_alg->cra_compress.coa_decompress(tfm, src, slen, dst,
+	                                                   dlen);
+}
+
+int crypto_init_compress_ops(struct crypto_tfm *tfm)
+{
+	struct compress_tfm *ops = &tfm->crt_compress;
+
+	ops->cot_compress = crypto_compress;
+	ops->cot_decompress = crypto_decompress;
+
+	return 0;
+}
+
+void crypto_exit_compress_ops(struct crypto_tfm *tfm)
+{
+}