64 	size_t enclen = datalen + CHACHA20POLY1305_AUTHTAG_SIZE;  in big_key_preparse()  local
87 		buf = kvmalloc(enclen, GFP_KERNEL);  in big_key_preparse()
106 		file = shmem_kernel_file_setup("", enclen, 0);  in big_key_preparse()
112 		written = kernel_write(file, buf, enclen, &pos);  in big_key_preparse()
113 		if (written != enclen) {  in big_key_preparse()
127 		kvfree_sensitive(buf, enclen);  in big_key_preparse()
145 	kvfree_sensitive(buf, enclen);  in big_key_preparse()
239 		size_t enclen = datalen + CHACHA20POLY1305_AUTHTAG_SIZE;  in big_key_read()  local
242 		buf = kvmalloc(enclen, GFP_KERNEL);  in big_key_read()
253 		ret = kernel_read(file, buf, enclen, &pos);  in big_key_read()
254 		if (ret != enclen) {  in big_key_read()
260 		ret = chacha20poly1305_decrypt(buf, buf, enclen, NULL, 0, 0,  in big_key_read()
273 		kvfree_sensitive(buf, enclen);  in big_key_read()