Gentoo license note: Linux firmware images are distributed under a variety of licenses, many of them being non-free. However, all images whose license is subsumed under this license label should at least be redistributable. You will need to check the WHENCE and LICEN[CS]E.* files in the package for specific licensing terms. Some firmware images are distributed under a free software license (e.g. MIT or BSD), but only in binary form. These images are non-free in spite of their license, because their source code is not available.