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...@linux.intel.com>
Reviewed-by: Christoph Hellwig <h...@lst.de>
---
include/linux/pci.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 82e4cd1b7ac3..6c107eb381ac 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1029,6 +1029,7 @@ 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 */
@@ -1768,6 +1769,7 @@ 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
