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Commit 898b5395 authored by Dave C Boutcher's avatar Dave C Boutcher Committed by Paul Mackerras
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[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: default avatarDave Boutcher <sleddog@us.ibm.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 43ccf202

fs/proc/proc_devtree.c

+24 −0
Original line number Diff line number Diff line
@@ -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.

 */

include/linux/proc_fs.h

+5 −0
Original line number Diff line number Diff line
@@ -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 *,