Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 11 Jun 2002 00:25:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 11 Jun 2002 00:25:43 -0400 Received: from pizda.ninka.net ([216.101.162.242]:17601 "EHLO pizda.ninka.net") by vger.kernel.org with ESMTP id ; Tue, 11 Jun 2002 00:25:41 -0400 Date: Mon, 10 Jun 2002 21:21:35 -0700 (PDT) Message-Id: <20020610.212135.129520403.davem@redhat.com> To: roland@topspin.com Cc: wjhun@ayrnetworks.com, paulus@samba.org, linux-kernel@vger.kernel.org Subject: Re: PCI DMA to small buffers on cache-incoherent arch From: "David S. Miller" In-Reply-To: <52lm9m7969.fsf@topspin.com> X-Mailer: Mew version 2.1 on Emacs 21.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: Roland Dreier Date: 10 Jun 2002 21:04:30 -0700 That's fine but there are drivers (USB, etc) doing struct something { int field1; char dma_buffer[SMALLER_THAN_CACHE_LINE]; int field2; }; struct something *dev = kmalloc(sizeof *dev, GFP_KERNEL); Do they have to change to How about allocating struct something using pci_pool? - 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/