netdev - Re: [PATCH bpf-next 10/10] selftests/xsk: display command line options with -h

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Date: Thu, 10 Aug 2023 14:19:13 +0200
From: Przemek Kitszel <przemyslaw.kitszel@...el.com>
To: Magnus Karlsson <magnus.karlsson@...il.com>, "Karlsson, Magnus"
	<magnus.karlsson@...el.com>, "bjorn@...nel.org" <bjorn@...nel.org>,
	"ast@...nel.org" <ast@...nel.org>, "daniel@...earbox.net"
	<daniel@...earbox.net>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"Fijalkowski, Maciej" <maciej.fijalkowski@...el.com>, "bpf@...r.kernel.org"
	<bpf@...r.kernel.org>, "yhs@...com" <yhs@...com>, "andrii@...nel.org"
	<andrii@...nel.org>, "martin.lau@...ux.dev" <martin.lau@...ux.dev>,
	"song@...nel.org" <song@...nel.org>, "john.fastabend@...il.com"
	<john.fastabend@...il.com>, "kpsingh@...nel.org" <kpsingh@...nel.org>,
	"sdf@...gle.com" <sdf@...gle.com>, "haoluo@...gle.com" <haoluo@...gle.com>,
	"jolsa@...nel.org" <jolsa@...nel.org>
Subject: Re: [PATCH bpf-next 10/10] selftests/xsk: display command line
 options with -h

On 8/9/23 14:43, Magnus Karlsson wrote:
> From: Magnus Karlsson <magnus.karlsson@...el.com>
> 
> Add the -h option to display all available command line options
> available for test_xsk.sh and xskxceiver.
> 
> Signed-off-by: Magnus Karlsson <magnus.karlsson@...el.com>
> ---
>   tools/testing/selftests/bpf/test_xsk.sh | 11 ++++++++++-
>   1 file changed, 10 insertions(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh
> index 94b4b86d5239..baaeb016d699 100755
> --- a/tools/testing/selftests/bpf/test_xsk.sh
> +++ b/tools/testing/selftests/bpf/test_xsk.sh
> @@ -79,12 +79,15 @@
>   #
>   # Run a specific test from the test suite
>   #   sudo ./test_xsk.sh -t TEST_NAME
> +#
> +# Display the available command line options
> +#   sudo ./test_xsk.sh -h

any "help" / "list" commands (that do nothing but print) should be (able 
ot) execute/d without `sudo`.
Removing `sudo` part from the doc here would make it clear to reader too.

>   
>   . xsk_prereqs.sh
>   
>   ETH=""
>   
> -while getopts "vi:dm:lt:" flag
> +while getopts "vi:dm:lt:h" flag
>   do
>   	case "${flag}" in
>   		v) verbose=1;;
> @@ -93,6 +96,7 @@ do
>   		m) MODE=${OPTARG};;
>   		l) list=1;;
>   		t) TEST=${OPTARG};;
> +		h) help=1;;
>   	esac
>   done
>   
> @@ -140,6 +144,11 @@ setup_vethPairs() {
>   	ip link set ${VETH0} up
>   }
>   
> +if [[ $help -eq 1 ]]; then
> +	./${XSKOBJ}
> +        exit
> +fi
> +
>   if [ ! -z $ETH ]; then
>   	VETH0=${ETH}
>   	VETH1=${ETH}