jprobes: make struct jprobe.entry a void *

Currently jprobe.entry is a kprobe_opcode_t *, but that's a lie.  On some
platforms it doesn't point to an opcode at all, it points to a function
descriptor.

It's really a pointer to something that the arch code can turn into a function
entry point.  And that's what actually happens, none of the generic code ever
looks at jprobe.entry, it's only ever dereferenced by arch code.

So just make it a void *.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 23adf6075ae435a1c421fe7991e30b2bd64ebc27..f4e53b71d23ff04ed25815c6e33010b49cb2a399 100644 (file)
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -116,7 +116,7 @@ struct kprobe {
  */
 struct jprobe {
        struct kprobe kp;
-       kprobe_opcode_t *entry; /* probe handling code to jump to */
+       void *entry;    /* probe handling code to jump to */
 };
 
 DECLARE_PER_CPU(struct kprobe *, current_kprobe);