powerpc/kprobes: Dereference function pointers only if the address does not belong...

[sfrench/cifs-2.6.git] / arch / powerpc / kernel / kprobes.c

diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index 367494dc67d9e89a34ae7273b737479349987aef..bebc3007a793af02394909f47d29f30ab79c5b86 100644 (file)
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -600,7 +600,12 @@ NOKPROBE_SYMBOL(kprobe_fault_handler);
 
 unsigned long arch_deref_entry_point(void *entry)
 {
-       return ppc_global_function_entry(entry);
+#ifdef PPC64_ELF_ABI_v1
+       if (!kernel_text_address((unsigned long)entry))
+               return ppc_global_function_entry(entry);
+       else
+#endif
+               return (unsigned long)entry;
 }
 NOKPROBE_SYMBOL(arch_deref_entry_point);