rtl8812au module fails to build against kernel 6.1

[Simon Chopin]

THe DKMS module rtl8812au fails to build against the kernel 6.1 currently in lunar-proposed, causing issues with some autopkgtests run.

The failure is the following:

/var/lib/dkms/rtl8812au/4.3.8.12175.20140902+dfsg/build/os_dep/osdep_service.c: In function ‘rtw_change_ifname’:
/var/lib/dkms/rtl8812au/4.3.8.12175.20140902+dfsg/build/os_dep/osdep_service.c:2183:28: warning: passing argument 1 of ‘_rtw_memcpy’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
 2183 | _rtw_memcpy(pnetdev->dev_addr, padapter->eeprompriv.mac_addr, ETH_ALEN);
      | ~~~~~~~^~~~~~~~~~
/var/lib/dkms/rtl8812au/4.3.8.12175.20140902+dfsg/build/os_dep/osdep_service.c:807:24: note: expected ‘void *’ but argument is of type ‘const unsigned char *’
  807 | void _rtw_memcpy(void* dst, const void* src, u32 sz)
      | ~~~~~~^~~
/var/lib/dkms/rtl8812au/4.3.8.12175.20140902+dfsg/build/os_dep/osdep_service.c: In function ‘rtw_random32’:
/var/lib/dkms/rtl8812au/4.3.8.12175.20140902+dfsg/build/os_dep/osdep_service.c:2310:16: error: implicit declaration of function ‘prandom_u32’; did you mean ‘prandom_u32_max’? [-Werror=implicit-function-declaration]
 2310 | return prandom_u32();
      | ^~~~~~~~~~~
      | prandom_u32_max

You can find a complete log there:
https://autopkgtest.ubuntu.com/results/autopkgtest-lunar/lunar/amd64/r/rtl8812au/20230217_153303_afab4@/log.gz

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Renan Rangel (rvrangel)]

seems like it is also failing to build against kernels 6.2 in Lunar