[Cocci] How to match function calls in macros?

[Chuhong Yuan]

Hi all,
I want to write a script to match function calls in macros
but I don't know how to do that.
Here is an example:

#define __INIT_WORK(_work, _func, _onstack)     \
    do {     \
        static struct lock_class_key __key; \
        \
        __init_work((_work), _onstack); \
        (_work)->data = (atomic_long_t) WORK_DATA_INIT(); \
        lockdep_init_map(&(_work)->lockdep_map,
"(work_completion)"#_work, &__key, 0); \
        INIT_LIST_HEAD(&(_work)->entry); \
        (_work)->func = (_func); \
    } while (0)

In this example, I want to match function calls
like __init_work() and lockdep_init_map() in this macro.
So how to implement this by Coccinelle?

Thanks,
Chuhong
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