checking further for the Makefile in the latest git repo,
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband.git for-linus
, there's also no Makefile in the respective directory,
./for-linus/drivers/infiniband/hw/amso1100/
emailed the repo maintainer to ask,
"is this an omission? if not, where can i get the Makefile?"
and received,
Reply "There is a Kbuild file instead of a Makefile there."
i'm not yet sure what to do with that ... but, i presume that the 'make' process should *not* look for the Makefile? or, is there an additonal step req'd?