From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [RFC][PATCH] move dma_mask into struct device Date: Sat, 16 Nov 2002 18:23:48 +0100 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <200211161823.48018.arndb@de.ibm.com> Reply-To: Arnd Bergmann Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8bit Return-path: List-Id: linux-scsi@vger.kernel.org To: "J.E.J. Bottomley" Cc: Linux Kernel , Linux Scsi , Mike Anderson J.E.J. Bottomley [James.Bottomley@steeleye.com] wrote: > Attached is a patch which moves dma_mask into struct device and cleans up the > scsi mid-layer to use it (instead of using struct pci_dev). The advantage to > doing this is probably most apparent on non-pci bus architectures where > currently you have to construct a fake pci_dev just so you can get the bounce > buffers to work correctly. That does not sound like the right way to me. If you need to have the dma_mask for the Scsi_Host, you should store it in Scsi_Host itself. A struct device must never know about obscure architecture specific stuff like dma. Arnd <><