From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Return-Path: From: "Koehrer Mathias (ETAS/ESW5)" To: Gavin Shan CC: Bjorn Helgaas , "gregkh@linuxfoundation.org" , "linux-pci@vger.kernel.org" , "bhelgaas@google.com" , "xyjxie@linux.vnet.ibm.com" Subject: Re: [PATCH resend v2] Extending kernel option pci=resource_alignment to be able to specify PCI device/vendor IDs Date: Mon, 25 Jul 2016 06:05:21 +0000 Message-ID: <00e437fe05f54c6a9df12bf48cf28dc5@FE-MBX1012.de.bosch.com> Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 List-ID: Hi Gavin, > Mathias, The code change would conflict with Yongji's patch where the > wildcard introduced to identify PCI devices. >=20 > https://patchwork.ozlabs.org/patch/642473/ That's true, however it is also true the other way round. The first sending= of my patch was =20 22-June 2016 and thus before Yongji's patch... See also the comment of Bjorn Helgaas on my patch (v1): http://marc.info/?l=3Dlinux-pci&m=3D146654644431550&w=3D2=20 However it looks as if there are a couple of (conflicting) approaches for t= he issue with the alignment of PCI addresses flying around... My personal opinion is that the need to adapt the alignment of PCI addresse= s should be done on PCI device/vendor ids of relevant PCI devices and not o= n PCI addresses. The PCI addresses are likely to change e.g. by inserting another PCI board.= The device/vendor id of the devices will not change. Regards Mathias