Re: [PATCH -tip v8 01/13] ia64: kprobes: Fix to pass correct trampoline address to the handler

[Ingo Molnar]

* Masami Hiramatsu <mhiramat@xxxxxxxxxx> wrote:

> Commit e792ff804f49 ("ia64: kprobes: Use generic kretprobe trampoline handler")
> missed to pass the wrong trampoline address (it passes the descriptor address
> instead of function entry address).
> This fixes it to pass correct trampoline address to __kretprobe_trampoline_handler().
> This also changes to use correct symbol dereference function to get the
> function address from the kretprobe_trampoline.
> 
> Fixes: e792ff804f49 ("ia64: kprobes: Use generic kretprobe trampoline handler")
> Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>

A better changelog:

  The following commit:

     Commit e792ff804f49 ("ia64: kprobes: Use generic kretprobe trampoline handler")

  Passed the wrong trampoline address to __kretprobe_trampoline_handler(): it
  passes the descriptor address instead of function entry address.

  Pass the right parameter.

  Also use correct symbol dereference function to get the function address
  from 'kretprobe_trampoline' - an IA64 special.

(Although I realize that much of this goes away just a couple of patches 
later.)

Thanks,

	Ingo