From 898b5395e915210f41223caa30312994d64cba1d Mon Sep 17 00:00:00 2001 From: Dave C Boutcher Date: Thu, 12 Jan 2006 16:07:17 -0600 Subject: [PATCH] [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 Signed-off-by: Paul Mackerras --- fs/proc/proc_devtree.c | 24 ++++++++++++++++++++++++ include/linux/proc_fs.h | 5 +++++ 2 files changed, 29 insertions(+) diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c index fb117b7480..9bdd077d6f 100644 --- a/fs/proc/proc_devtree.c +++ b/fs/proc/proc_devtree.c @@ -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. */ diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 74488e4916..aa6322d451 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -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 *, -- 2.39.5