The github version of Coccinelle finally supports the semantic patch for
your code.  I have attached the semantic patch.  I wonder what should be
done with this?  Do you want to use it locally with make coccicheck?  Do
you want it to be integrated into the kernel?  Everything in the semantic
patch depends on the occurrence of BQ27XXX_DATA, so if make coccicheck is
used on files that don't contain this word, they should be ignored very
efficiently.  So perhaps it is ok for scripts/coccinelle even if it is
relevant to only one file.

julia