From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joe Perches Subject: Re: [PATCH 2/2] net: add support for NS8390 based eth controllers on some ColdFire CPU boards Date: Tue, 03 Jul 2012 23:39:59 -0700 Message-ID: <1341383999.3627.20.camel@joe2Laptop> References: <1341377789-12970-1-git-send-email-gerg@snapgear.com> <1341377789-12970-3-git-send-email-gerg@snapgear.com> <1341379091.3627.15.camel@joe2Laptop> <4FF3E031.5040703@snapgear.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, linux-m68k@vger.kernel.org, Greg Ungerer To: Greg Ungerer Return-path: In-Reply-To: <4FF3E031.5040703@snapgear.com> Sender: linux-m68k-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Wed, 2012-07-04 at 16:18 +1000, Greg Ungerer wrote: > Hi Joe, Hi Greg. > On 04/07/12 15:18, Joe Perches wrote: > > On Wed, 2012-07-04 at 14:56 +1000, gerg@snapgear.com wrote: > >> From: Greg Ungerer > >> > >> A number of older ColdFire CPU based boards use NS8390 based network > >> controllers. Most use the Davicom 9008F or the UMC 9008F. This driver > >> provides the support code to get these devices working on these platforms. [] > >> diff --git a/drivers/net/ethernet/8390/mcf8390.c b/drivers/net/ethernet/8390/mcf8390.c [] > >> +static int mcf8390_init(struct net_device *dev) > >> +{ > >> + static u32 offsets[] = { > >> + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, > >> + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, > >> + }; > > > > const? u8? > > That is assigned to the "reg_offset" field of "struct ei_device" > (defined in the existing 8390.h) and that is: > > u32 *reg_offset; /* Register mapping table */ > > So I can't change this. Sure you can, you can assign a u8 to a u32 just fine. The value fits in a u8. Might as well make it take less data space. static const makes it read-only and makes the compiler assign it just once instead of at function invocation. cheers, Joe