Re: [PATCH net-next v3 07/11] selftests/vsock: add check_result() for pass/fail counting

[Simon Horman <horms@kernel.org>]

On Thu, Nov 06, 2025 at 04:49:51PM -0800, Bobby Eshleman wrote:
> From: Bobby Eshleman <bobbyeshleman@meta.com>
> 
> Add check_result() function to reuse logic for incrementing the
> pass/fail counters. This function will get used by different callers as
> we add different types of tests in future patches (namely, namespace and
> non-namespace tests will be called at different places, and re-use this
> function).
> 
> Reviewed-by: Simon Horman <horms@kernel.org>
> Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
> ---
> Changes in v3:
> - increment cnt_total directly (no intermediary var) (Stefano)
> - pass arg to check_result() from caller, dont incidentally rely on
>   global (Stefano)
> - use new create_pidfile() introduce in v3 of earlier patch
> - continue with more disciplined variable quoting style
> ---
>  tools/testing/selftests/vsock/vmtest.sh | 95 +++++++++++++++++++++++++--------
>  1 file changed, 72 insertions(+), 23 deletions(-)
> 
> diff --git a/tools/testing/selftests/vsock/vmtest.sh b/tools/testing/selftests/vsock/vmtest.sh
> index 557f9a99a306..05cf370a3db4 100755
> --- a/tools/testing/selftests/vsock/vmtest.sh
> +++ b/tools/testing/selftests/vsock/vmtest.sh
> @@ -46,6 +46,8 @@ readonly TEST_DESCS=(
>  	"Run vsock_test using the loopback transport in the VM."
>  )
>  
> +readonly USE_SHARED_VM=(vm_server_host_client vm_client_host_server vm_loopback)
> +
>  VERBOSE=0
>  
>  usage() {
> @@ -79,6 +81,28 @@ die() {
>  	exit "${KSFT_FAIL}"
>  }
>  
> +check_result() {
> +	local rc arg
> +
> +	rc=$1
> +	arg=$2
> +
> +	cnt_total=$(( cnt_total + 1 ))
> +
> +	if [[ ${rc} -eq $KSFT_PASS ]]; then
> +		cnt_pass=$(( cnt_pass + 1 ))
> +		echo "ok ${num} ${arg}"
> +	elif [[ ${rc} -eq $KSFT_SKIP ]]; then
> +		cnt_skip=$(( cnt_skip + 1 ))
> +		echo "ok ${num} ${arg} # SKIP"
> +	elif [[ ${rc} -eq $KSFT_FAIL ]]; then
> +		cnt_fail=$(( cnt_fail + 1 ))
> +		echo "not ok ${num} ${arg} # exit=$rc"

Hi Bobby,

Should num be cnt_total above?

> +	fi
> +
> +	cnt_total=$(( cnt_total + 1 ))

It seems that cnt_total is being incremented twice.
Once seems like it ought to be enough.

> +}
> +
>  vm_ssh() {
>  	ssh -q -o UserKnownHostsFile=/dev/null -p ${SSH_HOST_PORT} localhost "$@"
>  	return $?

I'll confess that I didn't notice these myself, but
Claude Code with https://github.com/masoncl/review-prompts/ did.