[cocci] Matching objects as well as pointers to objects?

Hello,

I have a question about using Coccinelle for C code (for the Linux
kernel). I'm trying to get Coccinelle to make the following change for
me:

@@
expression bio, errno;
@@
- bio->bi_status = errno_to_blk_status(errno);
- bio_endio(bio);
+ bio_endio_errno(bio, errno);

This matches when bio is a pointer, but when bio is a struct, the
following patch seems to be needed:

@@
expression bio, errno;
@@
- bio.bi_status = errno_to_blk_status(errno);
- bio_endio(&bio);
+ bio_endio_errno(&bio, errno);

Both cases are equivalent at the C code level. Can Coccinelle
recognize this kind of equivalence and is there a way to match both
cases with a single patch?

Thanks a lot,
Andreas