D2041.id4171.diff
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D2041.id4171.diff
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	Index: sys/dev/pci/pci_iov.c
	===================================================================
	--- sys/dev/pci/pci_iov.c
	+++ sys/dev/pci/pci_iov.c
	@@ -586,7 +586,7 @@
	* VFs.
	*/
	if (nvlist_get_bool(iov_config, "passthrough"))
	- device_set_devclass(vf, "ppt");
	+ device_set_devclass_fixed(vf, "ppt");

	vfinfo = device_get_ivars(vf);

	Index: sys/kern/subr_bus.c
	===================================================================
	--- sys/kern/subr_bus.c
	+++ sys/kern/subr_bus.c
	@@ -2683,6 +2683,25 @@
	}

	/**
	+ * @brief Set the devclass of a device and mark the devclass fixed.
	+ * @see device_set_devclass()
	+ */
	+int
	+device_set_devclass_fixed(device_t dev, const char *classname)
	+{
	+ int error;
	+
	+ if (classname == NULL)
	+ return (EINVAL);
	+
	+ error = device_set_devclass(dev, classname);
	+ if (error)
	+ return (error);
	+ dev->flags \|= DF_FIXEDCLASS;
	+ return (0);
	+}
	+
	+/**
	* @brief Set the driver of a device
	*
	* @retval 0 success
	Index: sys/sys/bus.h
	===================================================================
	--- sys/sys/bus.h
	+++ sys/sys/bus.h
	@@ -522,6 +522,7 @@
	void device_set_desc(device_t dev, const char* desc);
	void device_set_desc_copy(device_t dev, const char* desc);
	int device_set_devclass(device_t dev, const char *classname);
	+int device_set_devclass_fixed(device_t dev, const char *classname);
	int device_set_driver(device_t dev, driver_t *driver);
	void device_set_flags(device_t dev, u_int32_t flags);
	void device_set_softc(device_t dev, void *softc);