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of: wrap accesses to device_node kobject 

In preparation to make kobject element in struct device_node optional,
provide and use a macro to return the kobject pointer. The only user
outside the DT core is the driver core.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Nicolas Pitre <nico@linaro.org>
Reviewed-by: Frank Rowand <frowand.list@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Rob Herring 2017-10-04 14:04:01 -05:00
parent 4c2bb57400
commit 0c3c234b95
2 changed files with 3 additions and 1 deletions
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2
drivers/base/core.c
View File

@ -1571,7 +1571,7 @@ static int device_add_class_symlinks(struct device *dev)
int error;
if (of_node) {
error = sysfs_create_link(&dev->kobj, &of_node->kobj,"of_node");
error = sysfs_create_link(&dev->kobj, of_node_kobj(of_node), "of_node");
if (error)
dev_warn(dev, "Error %d creating of_node link\n",error);
/* An error here doesn't warrant bringing down the device */

2
include/linux/of.h
View File

@ -111,6 +111,8 @@ static inline void of_node_init(struct device_node *node)
node->fwnode.ops = &of_fwnode_ops;
}
#define of_node_kobj(n) (&(n)->kobj)
/* true when node is initialized */
static inline int of_node_is_initialized(struct device_node *node)
{