63 	size_t enclen = datalen + CHACHA20POLY1305_AUTHTAG_SIZE;  in big_key_preparse()  local
84 		buf = kvmalloc(enclen, GFP_KERNEL);  in big_key_preparse()
103 		file = shmem_kernel_file_setup("", enclen, 0);  in big_key_preparse()
109 		written = kernel_write(file, buf, enclen, &pos);  in big_key_preparse()
110 		if (written != enclen) {  in big_key_preparse()
124 		memzero_explicit(buf, enclen);  in big_key_preparse()
143 	memzero_explicit(buf, enclen);  in big_key_preparse()
242 		size_t enclen = datalen + CHACHA20POLY1305_AUTHTAG_SIZE;  in big_key_read()  local
245 		buf = kvmalloc(enclen, GFP_KERNEL);  in big_key_read()
256 		ret = kernel_read(file, buf, enclen, &pos);  in big_key_read()
257 		if (ret != enclen) {  in big_key_read()
263 		ret = chacha20poly1305_decrypt(buf, buf, enclen, NULL, 0, 0,  in big_key_read()
276 		memzero_explicit(buf, enclen);  in big_key_read()