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Subject[PATCH 3/3] driver core: bus: add a new helper to_driver_private_bus
Date
Add a new helper to_driver_private_bus() for consistency with
to_device_private_bus() and use it in bus.c.

Signed-off-by: Geliang Tang <geliangtang@163.com>
---
drivers/base/base.h | 2 ++
drivers/base/bus.c | 2 +-
2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/base/base.h b/drivers/base/base.h
index e05db38..88119d6 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -51,6 +51,8 @@ struct driver_private {
struct device_driver *driver;
};
#define to_driver(obj) container_of(obj, struct driver_private, kobj)
+#define to_driver_private_bus(obj) \
+ container_of(obj, struct driver_private, knode_bus)

/**
* struct device_private - structure to hold the private to the driver core portions of the device structure.
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 6470eb8..ddc2b0b 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -422,7 +422,7 @@ static struct device_driver *next_driver(struct klist_iter *i)
struct driver_private *drv_priv;

if (n) {
- drv_priv = container_of(n, struct driver_private, knode_bus);
+ drv_priv = to_driver_private_bus(n);
return drv_priv->driver;
}
return NULL;
--
2.5.0



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