* 'lsfd--eventfd' of https://github.com/masatake/util-linux:
test_mkfds: avoid "ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’"
tests: (lsfd) add cases for eventfd
tests: (mkfds) add eventfd factory
tests: (mkfds) provide the way to declare the number of extra printing values
tests: (mkfds) print a whitespace only when the running factory has "report" method
lsfd: fill ENDPOINTS column for eventfd
lsfd: add a helper macro, foreach_endpoint
lsfd: add a helper function, init_endpoint
lsfd: add a helper function, add_endpoint
lsfd: add a helper function, new_ipc
lsfd: add a back pointer as a member of anon_eventfd_data
lsfd: move a local variable to a narrower scope
lsfd: add EVENTFD.ID column
lsfd: delete redundant parentheses surrounding return value
ldfd: delete unnecessary ';'
lsfd: choose anon_ops declarative way