[POWERPC] Minor fault path optimization

[deliverable/linux.git] / include / asm-powerpc / kdebug.h

diff --git a/include/asm-powerpc/kdebug.h b/include/asm-powerpc/kdebug.h
index 532bfee934f43328912e5d88045197feba350da7..df996b933def3c8dcdfd8ce3d3961b5768d6dda4 100644 (file)
--- a/include/asm-powerpc/kdebug.h
+++ b/include/asm-powerpc/kdebug.h
@@ -18,8 +18,20 @@ struct die_args {
 
 extern int register_die_notifier(struct notifier_block *);
 extern int unregister_die_notifier(struct notifier_block *);
-extern int register_page_fault_notifier(struct notifier_block *);
-extern int unregister_page_fault_notifier(struct notifier_block *);
+
+/*
+ * These are only here because kprobes.c wants them to implement a
+ * blatant layering violation.  Will hopefully go away soon once all
+ * architectures are updated.
+ */
+static inline int register_page_fault_notifier(struct notifier_block *nb)
+{
+       return 0;
+}
+static inline int unregister_page_fault_notifier(struct notifier_block *nb)
+{
+       return 0;
+}
 extern struct atomic_notifier_head powerpc_die_chain;
 
 /* Grossly misnamed. */
@@ -29,7 +41,6 @@ enum die_val {
        DIE_DABR_MATCH,
        DIE_BPT,
        DIE_SSTEP,
-       DIE_PAGE_FAULT,
 };
 
 static inline int notify_die(enum die_val val,char *str,struct pt_regs *regs,long err,int trap, int sig)