[PATCH v4 2/7] nvme: consolidate some nvme-cli utility functions

[Logan Gunthorpe]

On 2020-08-14 12:18 a.m., Sagi Grimberg wrote:
> diff --git a/tests/nvme/004 b/tests/nvme/004
> index b841a8d4cd87..7ea539fda55e 100755
> --- a/tests/nvme/004
> +++ b/tests/nvme/004
> @@ -33,14 +33,14 @@ test() {
>  		"91fdba0d-f87b-4c25-b80f-db7be1418b9e"
>  	_add_nvmet_subsys_to_port "${port}" "blktests-subsystem-1"
>  
> -	nvme connect -t loop -n blktests-subsystem-1
> +	_nvme_connect_subsys "loop" "blktests-subsystem-1"

A bit of a nit, but the quotes around "loop" are unnecessary here and in
a bunch of other places.

> @@ -97,6 +97,33 @@ _setup_nvmet() {
>  	modprobe nvme-loop
>  }
>  
> +_nvme_disconnect_ctrl() {
> +	local ctrl="$1"
> +
> +	nvme disconnect -d ${ctrl}> +}
> +
> +_nvme_disconnect_subsys() {
> +	local subsysnqn="$1"
> +
> +	nvme disconnect -n ${subsysnqn}
> +}

Missing quotes around ctrl and subsysnqn.

> +
> +_nvme_connect_subsys() {
> +	local trtype="$1"
> +	local subsysnqn="$2"
> +
> +	cmd="nvme connect -t ${trtype} -n ${subsysnqn}"
> +	eval $cmd
> +}

I still don't understand why we are using eval here.  There are no
quotes round trtpe and subsysnqn and because of eval they need to be
doubled...