D38148.diff
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	diff --git a/sys/compat/linuxkpi/common/include/linux/pci.h b/sys/compat/linuxkpi/common/include/linux/pci.h
	--- a/sys/compat/linuxkpi/common/include/linux/pci.h
	+++ b/sys/compat/linuxkpi/common/include/linux/pci.h
	@@ -1672,4 +1672,13 @@
	PCIM_CMD_BUSMASTEREN) != 0);
	}

	+static inline int
	+pci_wait_for_pending_transaction(struct pci_dev *pdev)
	+{
	+
	+ return (0);
	+}
	+
	+bool pci_device_is_present(struct pci_dev *pdev);
	+
	#endif /* _LINUXKPI_LINUX_PCI_H_ */
	diff --git a/sys/compat/linuxkpi/common/src/linux_pci.c b/sys/compat/linuxkpi/common/src/linux_pci.c
	--- a/sys/compat/linuxkpi/common/src/linux_pci.c
	+++ b/sys/compat/linuxkpi/common/src/linux_pci.c
	@@ -996,6 +996,16 @@
	return (desc);
	}

	+bool
	+pci_device_is_present(struct pci_dev *pdev)
	+{
	+ device_t dev;
	+
	+ dev = pdev->dev.bsddev;
	+
	+ return (bus_child_present(dev));
	+}
	+
	CTASSERT(sizeof(dma_addr_t) <= sizeof(uint64_t));

	struct linux_dma_obj {