It seems overflow.h wsa imported directly from Linux in 3208d4ad2b8320a.
Update the file to the newer version as needed for wireless driver updates.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Obtained from: git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
038d61fd642278 (tag: v6.16)