From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steve Wise Subject: Re: [PATCH] RDMA/cxgb3: logical-/bit-or confusion? Date: Wed, 18 Feb 2009 18:53:40 -0600 Message-ID: <499CAD94.8000108@opengridcomputing.com> References: <499BD470.4080705@gmail.com> <499C0143.1080703@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Roel Kluin , Andrew Morton , "David S. Miller" , netdev@vger.kernel.org To: Roland Dreier Return-path: Received: from smtp.opengridcomputing.com ([209.198.142.2]:37780 "EHLO smtp.opengridcomputing.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751934AbZBSAxn (ORCPT ); Wed, 18 Feb 2009 19:53:43 -0500 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: Roland Dreier wrote: > > - ep->mpa_attr.crc_enabled = (mpa->flags & MPA_CRC) | crc_enabled ? 1 : 0; > > + ep->mpa_attr.crc_enabled = (mpa->flags & MPA_CRC) || crc_enabled ? 1 : 0; > > > - ep->mpa_attr.crc_enabled = (mpa->flags & MPA_CRC) | crc_enabled ? 1 : 0; > > + ep->mpa_attr.crc_enabled = (mpa->flags & MPA_CRC) || crc_enabled ? 1 : 0; > > So as I said before, I guess this change is fine, except: > > add/remove: 0/0 grow/shrink: 1/0 up/down: 18/0 (18) > function old new delta > rx_data 1237 1255 +18 > > ie it makes the object code 18 bytes bigger on x86-64 (gcc 4.3.2). > Given that the code works the same either way, is this change a net win? > > - R. > It does not bother me to leave the code as-is. Roel, Was this found by code inspection or some tool that is run on the code?