Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756511AbZCMJBm (ORCPT ); Fri, 13 Mar 2009 05:01:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752737AbZCMJBa (ORCPT ); Fri, 13 Mar 2009 05:01:30 -0400 Received: from mx2.redhat.com ([66.187.237.31]:44632 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751188AbZCMJB3 (ORCPT ); Fri, 13 Mar 2009 05:01:29 -0400 Message-ID: <49BA20E1.70607@redhat.com> Date: Fri, 13 Mar 2009 10:01:21 +0100 From: Ivan Vecera User-Agent: Thunderbird 2.0.0.19 (X11/20090103) MIME-Version: 1.0 To: Jiri Pirko CC: Michal Schmidt , linux-kernel@vger.kernel.org, jgarzik@pobox.com, davem@davemloft.net, netdev@vger.kernel.org Subject: Re: [PATCH] 8139cp: allow to set mac address on running device References: <20090312162730.GA20153@psychotron.englab.brq.redhat.com> <20090312181121.79e297a2@brian.englab.brq.redhat.com> <20090312174641.GC20153@psychotron.englab.brq.redhat.com> In-Reply-To: <20090312174641.GC20153@psychotron.englab.brq.redhat.com> X-Enigmail-Version: 0.95.7 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1152 Lines: 32 Jiri Pirko wrote: > Thu, Mar 12, 2009 at 06:11:21PM CET, mschmidt@redhat.com wrote: >> On Thu, 12 Mar 2009 17:27:31 +0100 >> Jiri Pirko wrote: >> >>> + cpw32_f(MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + >>> 0))); >>> + cpw32_f(MAC0 + 4, le32_to_cpu (*(__le32 *) (dev->dev_addr + >>> 4))); >> You're writing to the card, so using *_to_cpu looks suspicious. > Well, I'm using the same approach as it is already done in function > cp_init_hw(). Quote: > > /* Restore our idea of the MAC address. */ > cpw32_f (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0))); > cpw32_f (MAC0 + 4, le32_to_cpu (*(__le32 *) (dev->dev_addr + 4))); > Yes, that's right but I would use more cleaner approach: === u32 low, high; low = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24); high = addr[4] | (addr[5] << 8); cpw32_f(MAC0 + 0, low); cpw32_f(MAC0 + 4, high); === Ivan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/