I'm not seeing a test mail for v6.6.33-rc1 but it's in the stable-rc git and I'm seeing build failures in the KVM selftests for arm64 with it:
/usr/bin/ld: /build/stage/build-work/kselftest/kvm/aarch64/vgic_init.o: in funct ion `test_v2_uaccess_cpuif_no_vcpus': /build/stage/linux/tools/testing/selftests/kvm/aarch64/vgic_init.c:388:(.text+0x 1234): undefined reference to `FIELD_PREP' /usr/bin/ld: /build/stage/linux/tools/testing/selftests/kvm/aarch64/vgic_init.c: 388:(.text+0x1244): undefined reference to `FIELD_PREP' /usr/bin/ld: /build/stage/linux/tools/testing/selftests/kvm/aarch64/vgic_init.c: 393:(.text+0x12a4): undefined reference to `FIELD_PREP' /usr/bin/ld: /build/stage/linux/tools/testing/selftests/kvm/aarch64/vgic_init.c: 393:(.text+0x12b4): undefined reference to `FIELD_PREP' /usr/bin/ld: /build/stage/linux/tools/testing/selftests/kvm/aarch64/vgic_init.c: 398:(.text+0x1308): undefined reference to `FIELD_PREP'
due to 12237178b318fb3 ("KVM: selftests: Add test for uaccesses to non-existent vgic-v2 CPUIF") which was backported from 160933e330f4c5a13931d725a4d952a4b9aefa71.