[SPARC64]: Optimize fault kprobe handling just like powerpc.

And eliminate DIE_GPF while we're at it.

Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 14 insertions, 3 deletions

diff --git a/include/asm-sparc64/kdebug.h b/include/asm-sparc64/kdebug.h
index f8032e73f384..627e3396a5f0 100644
--- a/include/asm-sparc64/kdebug.h
+++ b/include/asm-sparc64/kdebug.h
@@ -7,8 +7,19 @@
 
 struct pt_regs;
 
-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 void bad_trap(struct pt_regs *, long);
 
@@ -20,7 +31,6 @@ enum die_val {
         DIE_DIE,
         DIE_TRAP,
         DIE_TRAP_TL1,
-        DIE_GPF,
         DIE_CALL,
         DIE_PAGE_FAULT,
 };
diff --git a/include/asm-sparc64/kprobes.h b/include/asm-sparc64/kprobes.h
index becc38fa06c5..a331b7b0dff2 100644
--- a/include/asm-sparc64/kprobes.h
+++ b/include/asm-sparc64/kprobes.h
@@ -43,4 +43,5 @@ struct kprobe_ctlblk {
 
 extern int kprobe_exceptions_notify(struct notifier_block *self,
                                     unsigned long val, void *data);
+extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
 #endif /* _SPARC64_KPROBES_H */