From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752851Ab1CQIzA (ORCPT ); Thu, 17 Mar 2011 04:55:00 -0400 Received: from cantor.suse.de ([195.135.220.2]:44082 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751936Ab1CQIyz (ORCPT ); Thu, 17 Mar 2011 04:54:55 -0400 From: Oliver Neukum Organization: SUSE To: "linux-kernel" Subject: question oh macros and gcc's intelligence Date: Thu, 17 Mar 2011 08:48:57 +0100 User-Agent: KMail/1.13.5 (Linux/2.6.38-rc8-12-desktop+; KDE/4.4.4; x86_64; ; ) MIME-Version: 1.0 Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Message-Id: <201103170848.57688.oneukum@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, if I write: if (le16_to_cpu(p) == CONST) a(); is gcc smart enough to convert CONST to le16 and do a simple comparison? Regards Oliver