Package: iw Version: 5.9-1 Severity: normal https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/crda.git/commit/?id=f4ef2531698fb9ba006e8b31a223b3269be8bc7c states: "README: add legacy notice As if kernel v4.15 CRDA is no longer needed. Annotate this. The code will still be maintained to help older kernels."
Thus, afaict, crda isn't even needed by the current stable (kernel) release, let alone for the next (Bullseye) or later. -- System Information: Debian Release: bullseye/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'testing'), (101, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 5.9.0-1-amd64 (SMP w/16 CPU threads) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages iw depends on: ii libc6 2.31-4 ii libnl-3-200 3.4.0-1+b1 ii libnl-genl-3-200 3.4.0-1+b1 Versions of packages iw recommends: ii crda 4.14+git20191112.9856751-1 iw suggests no packages. -- no debconf information