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From:   Lu Baolu <baolu.lu@linux.intel.com>
To:     David Woodhouse <dwmw2@infradead.org>,
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        Lu Baolu <baolu.lu@linux.intel.com>
Subject: [PATCH v4 1/9] PCI: Add dev_is_untrusted helper
Date:   Mon,  3 Jun 2019 09:16:12 +0800
Message-Id: <20190603011620.31999-2-baolu.lu@linux.intel.com>
In-Reply-To: <20190603011620.31999-1-baolu.lu@linux.intel.com>
References: <20190603011620.31999-1-baolu.lu@linux.intel.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

There are several places in the kernel where it is necessary to
check whether a device is a pci untrusted device. Add a helper
to simplify the callers.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
---
 include/linux/pci.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 4a5a84d7bdd4..0582d869923d 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -979,6 +979,7 @@ void pcibios_setup_bridge(struct pci_bus *bus, unsigned long type);
 void pci_sort_breadthfirst(void);
 #define dev_is_pci(d) ((d)->bus == &pci_bus_type)
 #define dev_is_pf(d) ((dev_is_pci(d) ? to_pci_dev(d)->is_physfn : false))
+#define dev_is_untrusted(d) ((dev_is_pci(d) ? to_pci_dev(d)->untrusted : false))
 
 /* Generic PCI functions exported to card drivers */
 
@@ -1707,6 +1708,7 @@ static inline struct pci_dev *pci_dev_get(struct pci_dev *dev) { return NULL; }
 
 #define dev_is_pci(d) (false)
 #define dev_is_pf(d) (false)
+#define dev_is_untrusted(d) (false)
 static inline bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags)
 { return false; }
 static inline int pci_irqd_intx_xlate(struct irq_domain *d,
-- 
2.17.1