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| author | Rob Herring <robh@kernel.org> | 2017-10-04 14:09:40 -0500 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2017-10-16 13:37:38 -0500 |
| commit | b56b5528f5b3c3d47e7c0ca67318c45e980d93f0 (patch) | |
| tree | 6c97fc5ee0bb26a4f3c762218a6b351ad3955c8a /include/linux/of.h | |
| parent | 0c3c234b95fa7f1dfa19e1456a47ebafc300dd6b (diff) | |
| download | linux-b56b5528f5b3c3d47e7c0ca67318c45e980d93f0.tar.gz linux-b56b5528f5b3c3d47e7c0ca67318c45e980d93f0.tar.bz2 linux-b56b5528f5b3c3d47e7c0ca67318c45e980d93f0.zip | |
of: make kobject and bin_attribute support configurable
Having device_nodes be kobjects is only needed if sysfs or OF_DYNAMIC is
enabled. Otherwise, having a kobject in struct device_node is
unnecessary bloat in minimal kernel configurations.
Likewise, bin_attribute is only needed in struct property when sysfs is
enabled, so we can make it configurable too.
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>
Diffstat (limited to 'include/linux/of.h')
| -rw-r--r-- | include/linux/of.h | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/include/linux/of.h b/include/linux/of.h index 2d685e769409..7b0f17be7830 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -43,7 +43,9 @@ struct property { #if defined(CONFIG_OF_PROMTREE) unsigned int unique_id; #endif +#if defined(CONFIG_OF_KOBJ) struct bin_attribute attr; +#endif }; #if defined(CONFIG_SPARC) @@ -62,7 +64,9 @@ struct device_node { struct device_node *parent; struct device_node *child; struct device_node *sibling; +#if defined(CONFIG_OF_KOBJ) struct kobject kobj; +#endif unsigned long _flags; void *data; #if defined(CONFIG_SPARC) @@ -107,23 +111,17 @@ extern struct kobj_type of_node_ktype; extern const struct fwnode_operations of_fwnode_ops; static inline void of_node_init(struct device_node *node) { +#if defined(CONFIG_OF_KOBJ) kobject_init(&node->kobj, &of_node_ktype); +#endif node->fwnode.ops = &of_fwnode_ops; } +#if defined(CONFIG_OF_KOBJ) #define of_node_kobj(n) (&(n)->kobj) - -/* true when node is initialized */ -static inline int of_node_is_initialized(struct device_node *node) -{ - return node && node->kobj.state_initialized; -} - -/* true when node is attached (i.e. present on sysfs) */ -static inline int of_node_is_attached(struct device_node *node) -{ - return node && node->kobj.state_in_sysfs; -} +#else +#define of_node_kobj(n) NULL +#endif #ifdef CONFIG_OF_DYNAMIC extern struct device_node *of_node_get(struct device_node *node); |