[Cocci] About variable name

[yafo lee]

Hi guys,
   I know there must be a variable  of type "struct alx_adapter*" in a 
function.
   sometimes it is in the funcion's argument list such as:
        int bar(struct alx_adapter  *adpt) {
          ...
      }
   sometimes it is in the function's body:
       int foo(int a{
          ...
           struct alx_adapter  *adpt= NULL;
           ...
      }
   I want to write a single rule to find the name of that pointer, and 
using it, such as:

   @@
   statement S1;
   statement S2;
   @@
   f(...) {
      ... when != S1
      + printf("%s: hello world\n", adpt->name);
     S2
     ... when any
   }

   Is that possible? how to achieve that?

Thanks. 

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