Re: [PATCH bpf v2] selftests/bpf: remove bash feature in test_xdp_redirect.sh

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On 2/6/21 1:26 AM, Björn Töpel wrote:
> From: Björn Töpel <bjorn.topel@xxxxxxxxx>
> 
> The test_xdp_redirect.sh script uses a bash redirect feature,
> '&>/dev/null'. Use '>/dev/null 2>&1' instead.
> 
> Also remove the 'set -e' since the script actually relies on that the
> return value can be used to determine pass/fail of the test.
> 
> Acked-by: William Tu <u9012063@xxxxxxxxx>
> Fixes: 996139e801fd ("selftests: bpf: add a test for XDP redirect")
> Signed-off-by: Björn Töpel <bjorn.topel@xxxxxxxxx>

Acked-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

Thanks.

> ---
> William, I kept your Acked-by.
> 
> v2: Kept /bin/sh and removed bashisms. (Randy)
> ---
>  tools/testing/selftests/bpf/test_xdp_redirect.sh | 15 +++++++--------
>  1 file changed, 7 insertions(+), 8 deletions(-)
> 
> diff --git a/tools/testing/selftests/bpf/test_xdp_redirect.sh b/tools/testing/selftests/bpf/test_xdp_redirect.sh
> index dd80f0c84afb..4d4887da175c 100755
> --- a/tools/testing/selftests/bpf/test_xdp_redirect.sh
> +++ b/tools/testing/selftests/bpf/test_xdp_redirect.sh
> @@ -46,20 +46,20 @@ test_xdp_redirect()
>  
>  	setup
>  
> -	ip link set dev veth1 $xdpmode off &> /dev/null
> +	ip link set dev veth1 $xdpmode off >/dev/null 2>&1
>  	if [ $? -ne 0 ];then
>  		echo "selftests: test_xdp_redirect $xdpmode [SKIP]"
>  		return 0
>  	fi
>  
> -	ip -n ns1 link set veth11 $xdpmode obj xdp_dummy.o sec xdp_dummy &> /dev/null
> -	ip -n ns2 link set veth22 $xdpmode obj xdp_dummy.o sec xdp_dummy &> /dev/null
> -	ip link set dev veth1 $xdpmode obj test_xdp_redirect.o sec redirect_to_222 &> /dev/null
> -	ip link set dev veth2 $xdpmode obj test_xdp_redirect.o sec redirect_to_111 &> /dev/null
> +	ip -n ns1 link set veth11 $xdpmode obj xdp_dummy.o sec xdp_dummy >/dev/null 2>&1
> +	ip -n ns2 link set veth22 $xdpmode obj xdp_dummy.o sec xdp_dummy >/dev/null 2>&1
> +	ip link set dev veth1 $xdpmode obj test_xdp_redirect.o sec redirect_to_222 >/dev/null 2>&1
> +	ip link set dev veth2 $xdpmode obj test_xdp_redirect.o sec redirect_to_111 >/dev/null 2>&1
>  
> -	ip netns exec ns1 ping -c 1 10.1.1.22 &> /dev/null
> +	ip netns exec ns1 ping -c 1 10.1.1.22 >/dev/null 2>&1
>  	local ret1=$?
> -	ip netns exec ns2 ping -c 1 10.1.1.11 &> /dev/null
> +	ip netns exec ns2 ping -c 1 10.1.1.11 >/dev/null 2>&1
>  	local ret2=$?
>  
>  	if [ $ret1 -eq 0 -a $ret2 -eq 0 ]; then
> @@ -72,7 +72,6 @@ test_xdp_redirect()
>  	cleanup
>  }
>  
> -set -e
>  trap cleanup 2 3 6 9
>  
>  test_xdp_redirect xdpgeneric
> 
> base-commit: 6183f4d3a0a2ad230511987c6c362ca43ec0055f
> 


-- 
~Randy





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