[PATCH blktests] nvme/043,044,045: load dh_generic module

[Sagi Grimberg]

> Test cases nvme/043, 044 and 045 use DH group which relies on dh_generic
> module. When the module is built as a loadable module, the test cases
> fail since the module is not loaded at test case runs.
> 
> To avoid the failures, load the dh_generic module at the preparation
> step of the test cases. Also unload it at test end for clean up.
> 
> Reported-by: Sagi Grimberg <sagi at grimberg.me>
> Fixes: 38d7c5e8400f ("nvme/043: test hash and dh group variations for authenticated connections")
> Fixes: 63bdf9c16b19 ("nvme/044: test bi-directional authentication")
> Fixes: 7640176ef7cc ("nvme/045: test re-authentication")
> Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki at wdc.com>
> Link: https://lore.kernel.org/linux-block/a5c3c8e7-4b0a-9930-8f90-e534d2a82bdf@grimberg.me/
> ---
>   tests/nvme/043 | 4 ++++
>   tests/nvme/044 | 4 ++++
>   tests/nvme/045 | 4 ++++
>   3 files changed, 12 insertions(+)
> 
> diff --git a/tests/nvme/043 b/tests/nvme/043
> index 381ae75..dbe9d3f 100755
> --- a/tests/nvme/043
> +++ b/tests/nvme/043
> @@ -40,6 +40,8 @@ test() {
>   
>   	_setup_nvmet
>   
> +	modprobe -q dh_generic
> +
>   	truncate -s 512M "${file_path}"
>   
>   	_create_nvmet_subsystem "${subsys_name}" "${file_path}"
> @@ -88,5 +90,7 @@ test() {
>   
>   	rm "${file_path}"
>   
> +	modprobe -qr dh_generic

You should not do this, dh_generic might have been
loaded unrelated to this test, you shouldn't just
blindly unload it.