[PATCH 3/3] w1: stop using struct device template for master devices

[Danilo Krummrich <dakr@kernel.org>]

w1_alloc_dev() uses memcpy() with a static struct device template
(w1_master_device) to initialize new master devices.

Replace the memcpy() with a w1_master_dev_init() helper that sets only
bus, type, and release.

Signed-off-by: Danilo Krummrich <dakr@kernel.org>
---
Compile-tested only, no hardware available.
---
 drivers/w1/w1.c          | 15 +++++++--------
 drivers/w1/w1_int.c      |  7 +++----
 drivers/w1/w1_internal.h |  2 +-
 3 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index b40f2d9fd29d..d71e2a1568bd 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -193,19 +193,18 @@ struct device_driver w1_master_driver = {
 	.bus = &w1_bus_type,
 };
 
-struct device w1_master_device = {
-	.parent = NULL,
-	.bus = &w1_bus_type,
-	.type = &w1_master_device_type,
-	.init_name = "w1 bus master",
-	.release = &w1_master_release
-};
-
 static struct device_driver w1_slave_driver = {
 	.name = "w1_slave_driver",
 	.bus = &w1_bus_type,
 };
 
+void w1_master_dev_init(struct device *dev)
+{
+	dev->bus = &w1_bus_type;
+	dev->type = &w1_master_device_type;
+	dev->release = &w1_master_release;
+}
+
 #if 0
 struct device w1_slave_device = {
 	.parent = NULL,
diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c
index 19a0ea28e9f3..a59ca19471e0 100644
--- a/drivers/w1/w1_int.c
+++ b/drivers/w1/w1_int.c
@@ -22,8 +22,7 @@ static int w1_enable_pullup = 1;
 module_param_named(enable_pullup, w1_enable_pullup, int, 0);
 
 static struct w1_master *w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
-				       struct device_driver *driver,
-				       struct device *device)
+				       struct device_driver *driver)
 {
 	struct w1_master *dev;
 	int err;
@@ -57,7 +56,7 @@ static struct w1_master *w1_alloc_dev(u32 id, int slave_count, int slave_ttl,
 	mutex_init(&dev->bus_mutex);
 	mutex_init(&dev->list_mutex);
 
-	memcpy(&dev->dev, device, sizeof(struct device));
+	w1_master_dev_init(&dev->dev);
 	dev_set_name(&dev->dev, "w1_bus_master%u", dev->id);
 	snprintf(dev->name, sizeof(dev->name), "w1_bus_master%u", dev->id);
 	dev->dev.init_name = dev->name;
@@ -116,7 +115,7 @@ int w1_add_master_device(struct w1_bus_master *master)
 	} while (found);
 
 	dev = w1_alloc_dev(id, w1_max_slave_count, w1_max_slave_ttl,
-		&w1_master_driver, &w1_master_device);
+		&w1_master_driver);
 	if (!dev) {
 		mutex_unlock(&w1_mlock);
 		return -ENOMEM;
diff --git a/drivers/w1/w1_internal.h b/drivers/w1/w1_internal.h
index cb5a74e9939a..ffe7c7e8c4ca 100644
--- a/drivers/w1/w1_internal.h
+++ b/drivers/w1/w1_internal.h
@@ -65,7 +65,7 @@ void __w1_family_get(struct w1_family *f);
 struct w1_family *w1_family_registered(u8 fid);
 
 extern struct device_driver w1_master_driver;
-extern struct device w1_master_device;
+void w1_master_dev_init(struct device *dev);
 extern int w1_max_slave_count;
 extern int w1_max_slave_ttl;
 extern struct list_head w1_masters;
-- 
2.55.0