From f6838c738aa178e026ee543abca6e36a8fa2fbec Mon Sep 17 00:00:00 2001
From: Richard Hughes <richard@hughsie.com>
Date: Tue, 29 Jan 2019 10:54:18 +0000
Subject: [PATCH] trivial: Add fu_udev_device_get_slot_depth()

We'll need this for another plugin soon.
---
 plugins/nvme/fu-nvme-device.c | 20 +-------------------
 src/fu-udev-device.c          | 18 ++++++++++++++++++
 src/fu-udev-device.h          |  2 ++
 3 files changed, 21 insertions(+), 19 deletions(-)

diff --git a/plugins/nvme/fu-nvme-device.c b/plugins/nvme/fu-nvme-device.c
index 1470f5a1d..d39609b14 100644
--- a/plugins/nvme/fu-nvme-device.c
+++ b/plugins/nvme/fu-nvme-device.c
@@ -305,24 +305,6 @@ fu_nvme_device_parse_cns (FuNvmeDevice *self, const guint8 *buf, gsize sz, GErro
 	return TRUE;
 }
 
-static guint
-fu_nvme_device_pci_slot_depth (FuNvmeDevice *self)
-{
-	GUdevDevice *udev_device = fu_udev_device_get_dev (FU_UDEV_DEVICE (self));
-	g_autoptr(GUdevDevice) device_tmp = NULL;
-
-	device_tmp = g_udev_device_get_parent_with_subsystem (udev_device, "pci", NULL);
-	if (device_tmp == NULL)
-		return 0;
-	for (guint i = 0; i < 0xff; i++) {
-		g_autoptr(GUdevDevice) parent = g_udev_device_get_parent (device_tmp);
-		if (parent == NULL)
-			return i;
-		g_set_object (&device_tmp, parent);
-	}
-	return 0;
-}
-
 static void
 fu_nvme_device_dump (const gchar *title, const guint8 *buf, gsize sz)
 {
@@ -369,7 +351,7 @@ fu_nvme_device_probe (FuUdevDevice *device, GError **error)
 		return FALSE;
 
 	/* look at the PCI depth to work out if in an external enclosure */
-	self->pci_depth = fu_nvme_device_pci_slot_depth (self);
+	self->pci_depth = fu_udev_device_get_slot_depth (device, "pci");
 	if (self->pci_depth <= 2)
 		fu_device_add_flag (FU_DEVICE (self), FWUPD_DEVICE_FLAG_INTERNAL);
 
diff --git a/src/fu-udev-device.c b/src/fu-udev-device.c
index c888ebdc3..e9229c641 100644
--- a/src/fu-udev-device.c
+++ b/src/fu-udev-device.c
@@ -251,6 +251,24 @@ fu_udev_device_set_dev (FuUdevDevice *self, GUdevDevice *udev_device)
 		return;
 }
 
+guint
+fu_udev_device_get_slot_depth (FuUdevDevice *self, const gchar *subsystem)
+{
+	GUdevDevice *udev_device = fu_udev_device_get_dev (FU_UDEV_DEVICE (self));
+	g_autoptr(GUdevDevice) device_tmp = NULL;
+
+	device_tmp = g_udev_device_get_parent_with_subsystem (udev_device, subsystem, NULL);
+	if (device_tmp == NULL)
+		return 0;
+	for (guint i = 0; i < 0xff; i++) {
+		g_autoptr(GUdevDevice) parent = g_udev_device_get_parent (device_tmp);
+		if (parent == NULL)
+			return i;
+		g_set_object (&device_tmp, parent);
+	}
+	return 0;
+}
+
 static void
 fu_udev_device_incorporate (FuDevice *self, FuDevice *donor)
 {
diff --git a/src/fu-udev-device.h b/src/fu-udev-device.h
index be8e1e03c..efb76b9f9 100644
--- a/src/fu-udev-device.h
+++ b/src/fu-udev-device.h
@@ -32,6 +32,8 @@ const gchar	*fu_udev_device_get_subsystem		(FuUdevDevice	*self);
 guint16		 fu_udev_device_get_vendor		(FuUdevDevice	*self);
 guint16		 fu_udev_device_get_model		(FuUdevDevice	*self);
 guint8		 fu_udev_device_get_revision		(FuUdevDevice	*self);
+guint		 fu_udev_device_get_slot_depth		(FuUdevDevice	*self,
+							 const gchar	*subsystem);
 gboolean	 fu_udev_device_set_physical_id		(FuUdevDevice	*self,
 							 const gchar	*subsystem,
 							 GError		**error);