openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

[PATCH] powerpc: Add/remove/update properties in /proc/device-tree 

Add support to the proc_device_tree file for removing
and updating properties.  Remove just removes the
proc file, update changes the data pointer within
the proc file.  The remainder of the device-tree
changes occur elsewhere.

Signed-off-by: Dave Boutcher <sleddog@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Dave C Boutcher 2006-01-12 16:07:17 -06:00 committed by Paul Mackerras
parent 43ccf20221
commit 898b5395e9
2 changed files with 29 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
fs/proc/proc_devtree.c
View File

@ -81,6 +81,30 @@ void proc_device_tree_add_prop(struct proc_dir_entry *pde, struct property *prop
__proc_device_tree_add_prop(pde, prop);
}
void proc_device_tree_remove_prop(struct proc_dir_entry *pde,
struct property *prop)
{
remove_proc_entry(prop->name, pde);
}
void proc_device_tree_update_prop(struct proc_dir_entry *pde,
struct property *newprop,
struct property *oldprop)
{
struct proc_dir_entry *ent;
for (ent = pde->subdir; ent != NULL; ent = ent->next)
if (ent->data == oldprop)
break;
if (ent == NULL) {
printk(KERN_WARNING "device-tree: property \"%s\" "
" does not exist\n", oldprop->name);
} else {
ent->data = newprop;
ent->size = newprop->length;
}
}
/*
* Process a node, adding entries for its children and its properties.
*/

5
include/linux/proc_fs.h
View File

@ -146,6 +146,11 @@ struct property;
extern void proc_device_tree_init(void);
extern void proc_device_tree_add_node(struct device_node *, struct proc_dir_entry *);
extern void proc_device_tree_add_prop(struct proc_dir_entry *pde, struct property *prop);
extern void proc_device_tree_remove_prop(struct proc_dir_entry *pde,
struct property *prop);
extern void proc_device_tree_update_prop(struct proc_dir_entry *pde,
struct property *newprop,
struct property *oldprop);
#endif /* CONFIG_PROC_DEVICETREE */
extern struct proc_dir_entry *proc_symlink(const char *,