driver-core: Add device node pointer to struct device
Currently, platforms using CONFIG_OF add a 'struct device_node *of_node'
to dev->archdata. However, with CONFIG_OF becoming generic for all
architectures, it makes sense for commonality to move it out of archdata
and into struct device proper.
This patch adds a struct device_node *of_node member to struct device
and updates all locations which currently write the device_node pointer
into archdata to also update dev->of_node. Subsequent patches will
modify callers to use the archdata location and ultimately remove
the archdata member entirely.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
CC: Michal Simek <monstr@monstr.eu>
CC: Greg Kroah-Hartman <gregkh@suse.de>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: "David S. Miller" <davem@davemloft.net>
CC: Stephen Rothwell <sfr@canb.auug.org.au>
CC: Jeremy Kerr <jeremy.kerr@canonical.com>
CC: microblaze-uclinux@itee.uq.edu.au
CC: linux-kernel@vger.kernel.org
CC: linuxppc-dev@ozlabs.org
CC: sparclinux@vger.kernel.org
diff --git a/include/linux/device.h b/include/linux/device.h
index 1821928..7a968bd 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -34,6 +34,7 @@
struct class_private;
struct bus_type;
struct bus_type_private;
+struct device_node;
struct bus_attribute {
struct attribute attr;
@@ -433,6 +434,9 @@
override */
/* arch specific additions */
struct dev_archdata archdata;
+#ifdef CONFIG_OF
+ struct device_node *of_node;
+#endif
dev_t devt; /* dev_t, creates the sysfs "dev" */