From: Bjorn Helgaas <helgaas@kernel.org> To: Rajat Jain <rajatja@google.com> Cc: David Woodhouse <dwmw2@infradead.org>, Lu Baolu <baolu.lu@linux.intel.com>, Joerg Roedel <joro@8bytes.org>, Bjorn Helgaas <bhelgaas@google.com>, "Rafael J. Wysocki" <rjw@rjwysocki.net>, Len Brown <lenb@kernel.org>, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, Raj Ashok <ashok.raj@intel.com>, lalithambika.krishnakumar@intel.com, Mika Westerberg <mika.westerberg@linux.intel.com>, Jean-Philippe Brucker <jean-philippe@linaro.org>, Prashant Malani <pmalani@google.com>, Benson Leung <bleung@google.com>, Todd Broch <tbroch@google.com>, Alex Levin <levinale@google.com>, Mattias Nissler <mnissler@google.com>, Rajat Jain <rajatxjain@gmail.com>, Bernie Keany <bernie.keany@intel.com>, Aaron Durbin <adurbin@google.com>, Diego Rivas <diegorivas@google.com>, Duncan Laurie <dlaurie@google.com>, Furquan Shaikh <furquan@google.com>, Jesse Barnes <jsbarnes@google.com>, Christian Kellner <christian@kellner.me>, Alex Williamson <alex.williamson@redhat.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, oohall@gmail.com, Saravana Kannan <saravanak@google.com>, Suzuki K Poulose <suzuki.poulose@arm.com>, Arnd Bergmann <arnd@arndb.de>, Heikki Krogerus <heikki.krogerus@linux.intel.com> Subject: Re: [PATCH v2 1/7] PCI: Keep the ACS capability offset in device Date: Mon, 6 Jul 2020 10:58:15 -0500 [thread overview] Message-ID: <20200706155815.GA119406@bjorn-Precision-5520> (raw) In-Reply-To: <20200630044943.3425049-2-rajatja@google.com> On Mon, Jun 29, 2020 at 09:49:37PM -0700, Rajat Jain wrote: > Currently this is being looked up at a number of places. Read and store it > once at bootup so that it can be used by all later. Write the commit log so it is complete even without the subject. Right now, you have to read the subject to know what "this" refers to. The subject is like the title; the log is like the body of an article. The title isn't *part* of the article, so the article has to make sense all by itself. > +static void pci_enable_acs(struct pci_dev *dev); I don't think we need this forward declaration, do we? > @@ -4653,7 +4653,7 @@ static int pci_quirk_intel_spt_pch_acs(struct pci_dev *dev, u16 acs_flags) > if (!pci_quirk_intel_spt_pch_acs_match(dev)) > return -ENOTTY; > > - pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ACS); > + pos = dev->acs_cap; I assume you verified that all these quirks are FINAL quirks, since pci_init_capabilities() is called after HEADER quirks. I'll double-check before applying this. Bjorn
WARNING: multiple messages have this Message-ID (diff)
From: Bjorn Helgaas <helgaas@kernel.org> To: Rajat Jain <rajatja@google.com> Cc: Todd Broch <tbroch@google.com>, linux-pci@vger.kernel.org, lalithambika.krishnakumar@intel.com, Heikki Krogerus <heikki.krogerus@linux.intel.com>, Diego Rivas <diegorivas@google.com>, Jean-Philippe Brucker <jean-philippe@linaro.org>, Furquan Shaikh <furquan@google.com>, Raj Ashok <ashok.raj@intel.com>, Saravana Kannan <saravanak@google.com>, linux-acpi@vger.kernel.org, Christian Kellner <christian@kellner.me>, Mattias Nissler <mnissler@google.com>, Jesse Barnes <jsbarnes@google.com>, Len Brown <lenb@kernel.org>, Rajat Jain <rajatxjain@gmail.com>, Prashant Malani <pmalani@google.com>, Suzuki K Poulose <suzuki.poulose@arm.com>, Aaron Durbin <adurbin@google.com>, Alex Williamson <alex.williamson@redhat.com>, Bjorn Helgaas <bhelgaas@google.com>, Mika Westerberg <mika.westerberg@linux.intel.com>, Bernie Keany <bernie.keany@intel.com>, Duncan Laurie <dlaurie@google.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, "Rafael J. Wysocki" <rjw@rjwysocki.net>, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Arnd Bergmann <arnd@arndb.de>, oohall@gmail.com, Benson Leung <bleung@google.com>, David Woodhouse <dwmw2@infradead.org>, Alex Levin <levinale@google.com> Subject: Re: [PATCH v2 1/7] PCI: Keep the ACS capability offset in device Date: Mon, 6 Jul 2020 10:58:15 -0500 [thread overview] Message-ID: <20200706155815.GA119406@bjorn-Precision-5520> (raw) In-Reply-To: <20200630044943.3425049-2-rajatja@google.com> On Mon, Jun 29, 2020 at 09:49:37PM -0700, Rajat Jain wrote: > Currently this is being looked up at a number of places. Read and store it > once at bootup so that it can be used by all later. Write the commit log so it is complete even without the subject. Right now, you have to read the subject to know what "this" refers to. The subject is like the title; the log is like the body of an article. The title isn't *part* of the article, so the article has to make sense all by itself. > +static void pci_enable_acs(struct pci_dev *dev); I don't think we need this forward declaration, do we? > @@ -4653,7 +4653,7 @@ static int pci_quirk_intel_spt_pch_acs(struct pci_dev *dev, u16 acs_flags) > if (!pci_quirk_intel_spt_pch_acs_match(dev)) > return -ENOTTY; > > - pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ACS); > + pos = dev->acs_cap; I assume you verified that all these quirks are FINAL quirks, since pci_init_capabilities() is called after HEADER quirks. I'll double-check before applying this. Bjorn _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
next prev parent reply other threads:[~2020-07-06 15:58 UTC|newest] Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-06-30 4:49 [PATCH v2 0/7] Tighten PCI security, expose dev location in sysfs Rajat Jain 2020-06-30 4:49 ` Rajat Jain via iommu 2020-06-30 4:49 ` [PATCH v2 1/7] PCI: Keep the ACS capability offset in device Rajat Jain 2020-06-30 4:49 ` Rajat Jain via iommu 2020-07-06 15:58 ` Bjorn Helgaas [this message] 2020-07-06 15:58 ` Bjorn Helgaas 2020-07-06 22:16 ` Rajat Jain 2020-07-06 22:16 ` Rajat Jain via iommu 2020-07-06 23:18 ` Bjorn Helgaas 2020-07-06 23:18 ` Bjorn Helgaas 2020-06-30 4:49 ` [PATCH v2 2/7] PCI: Set "untrusted" flag for truly external devices only Rajat Jain 2020-06-30 4:49 ` Rajat Jain via iommu 2020-06-30 7:38 ` Lu Baolu 2020-06-30 7:38 ` Lu Baolu 2020-06-30 7:55 ` Greg Kroah-Hartman 2020-06-30 7:55 ` Greg Kroah-Hartman 2020-07-06 16:41 ` Bjorn Helgaas 2020-07-06 16:41 ` Bjorn Helgaas 2020-07-06 18:48 ` Greg Kroah-Hartman 2020-07-06 18:48 ` Greg Kroah-Hartman 2020-07-06 16:38 ` Bjorn Helgaas 2020-07-06 16:38 ` Bjorn Helgaas 2020-07-06 22:31 ` Rajat Jain 2020-07-06 22:31 ` Rajat Jain via iommu 2020-07-06 23:30 ` Bjorn Helgaas 2020-07-06 23:30 ` Bjorn Helgaas 2020-07-06 23:40 ` Rajat Jain 2020-07-06 23:40 ` Rajat Jain via iommu 2020-06-30 4:49 ` [PATCH v2 3/7] PCI/ACS: Enable PCI_ACS_TB for untrusted/external-facing devices Rajat Jain 2020-06-30 4:49 ` Rajat Jain via iommu 2020-07-06 16:45 ` Bjorn Helgaas 2020-07-06 16:45 ` Bjorn Helgaas 2020-07-06 23:12 ` Rajat Jain 2020-07-06 23:12 ` Rajat Jain via iommu 2020-07-06 17:07 ` Bjorn Helgaas 2020-07-06 17:07 ` Bjorn Helgaas 2020-07-06 23:19 ` Rajat Jain 2020-07-06 23:19 ` Rajat Jain via iommu 2020-06-30 4:49 ` [PATCH v2 4/7] PCI: Add device even if driver attach failed Rajat Jain 2020-06-30 4:49 ` Rajat Jain via iommu 2020-06-30 8:02 ` Greg Kroah-Hartman 2020-06-30 8:02 ` Greg Kroah-Hartman 2020-07-06 23:35 ` Rajat Jain 2020-07-06 23:35 ` Rajat Jain via iommu 2020-06-30 4:49 ` [PATCH v2 5/7] driver core: Add device location to "struct device" and expose it in sysfs Rajat Jain 2020-06-30 4:49 ` Rajat Jain via iommu 2020-06-30 8:01 ` Greg Kroah-Hartman 2020-06-30 8:01 ` Greg Kroah-Hartman 2020-06-30 10:49 ` Heikki Krogerus 2020-06-30 10:49 ` Heikki Krogerus 2020-06-30 12:52 ` Greg Kroah-Hartman 2020-06-30 12:52 ` Greg Kroah-Hartman 2020-06-30 13:00 ` Rafael J. Wysocki 2020-06-30 13:00 ` Rafael J. Wysocki 2020-06-30 15:38 ` Greg Kroah-Hartman 2020-06-30 15:38 ` Greg Kroah-Hartman 2020-06-30 16:08 ` Rafael J. Wysocki 2020-06-30 16:08 ` Rafael J. Wysocki 2020-06-30 17:00 ` Greg Kroah-Hartman 2020-06-30 17:00 ` Greg Kroah-Hartman 2020-07-01 18:06 ` Rajat Jain 2020-07-01 18:06 ` Rajat Jain via iommu 2020-07-02 5:23 ` Oliver O'Halloran 2020-07-02 5:23 ` Oliver O'Halloran 2020-07-02 7:32 ` Greg Kroah-Hartman 2020-07-02 7:32 ` Greg Kroah-Hartman 2020-07-02 8:40 ` Oliver O'Halloran 2020-07-02 8:40 ` Oliver O'Halloran 2020-07-02 8:52 ` Greg Kroah-Hartman 2020-07-02 8:52 ` Greg Kroah-Hartman 2020-07-02 8:53 ` Greg Kroah-Hartman 2020-07-02 8:53 ` Greg Kroah-Hartman 2020-07-07 6:03 ` Rajat Jain 2020-07-07 6:03 ` Rajat Jain via iommu 2020-06-30 17:43 ` Saravana Kannan 2020-06-30 17:43 ` Saravana Kannan via iommu 2020-06-30 4:49 ` [PATCH v2 6/7] PCI: Move pci_dev->untrusted logic to use device location instead Rajat Jain 2020-06-30 4:49 ` Rajat Jain via iommu 2020-06-30 7:39 ` Lu Baolu 2020-06-30 7:39 ` Lu Baolu 2020-06-30 4:49 ` [PATCH v2 7/7] PCI: Add parameter to disable attaching external devices Rajat Jain 2020-06-30 4:49 ` Rajat Jain via iommu 2020-07-04 11:44 ` [PATCH v2 0/7] Tighten PCI security, expose dev location in sysfs Pavel Machek 2020-07-04 11:44 ` Pavel Machek 2020-07-06 22:18 ` Rajat Jain 2020-07-06 22:18 ` Rajat Jain via iommu
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