proc: Supply a function to remove a proc entry by PDE

Supply a function (proc_remove()) to remove a proc entry (and any subtree
rooted there) by proc_dir_entry pointer rather than by name and (optionally)
root dir entry pointer.  This allows us to eliminate all remaining pde->name
accesses outside of procfs.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Grant Likely <grant.likely@linaro.or>
cc: linux-acpi@vger.kernel.org
cc: openipmi-developer@lists.sourceforge.net
cc: devicetree-discuss@lists.ozlabs.org
cc: linux-pci@vger.kernel.org
cc: netdev@vger.kernel.org
cc: netfilter-devel@vger.kernel.org
cc: alsa-devel@alsa-project.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index bae820742341..cb78d5be6859 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -67,6 +67,7 @@ struct proc_dir_entry *proc_create_data(const char *name, umode_t mode,
                                 struct proc_dir_entry *parent,
                                 const struct file_operations *proc_fops,
                                 void *data);
+extern void proc_remove(struct proc_dir_entry *);
 extern void remove_proc_entry(const char *name, struct proc_dir_entry *parent);
 extern int remove_proc_subtree(const char *name, struct proc_dir_entry *parent);
 
@@ -101,6 +102,7 @@ static inline struct proc_dir_entry *proc_create_data(const char *name,
 {
         return NULL;
 }
+static inline void proc_remove(struct proc_dir_entry *de) {}
 #define remove_proc_entry(name, parent) do {} while (0)
 #define remove_proc_subtree(name, parent) do {} while (0)