These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.05 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/libaio-0.3.113_p8::gentoo  USE="-static-libs -test" 74 KiB
[ebuild  N     ] sys-fs/lvm2-2.03.39::gentoo  USE="lvm readline udev -nvme -sanlock (-selinux) -static -static-libs (-systemd) -test -thin -valgrind -vdo -xfs" 2811 KiB
[ebuild  N     ] sys-fs/dmraid-1.0.0_rc16-r7::gentoo  USE="-intel-led -led -mini -static" 228 KiB

Total: 3 packages (3 new), Size of downloads: 3112 KiB

The following USE changes are necessary to proceed:
 (see "package.use" in the portage(5) man page for more details)
# required by sys-fs/dmraid-1.0.0_rc16-r7::gentoo
# required by =sys-fs/dmraid-1.0.0_rc16-r7 (argument)
>=sys-fs/lvm2-2.03.39 lvm