netdev - Re: [PATCH net-next 3/5] selftests: forwarding: Handle 0 for packet difference in multipath tests

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Date:   Thu, 1 Mar 2018 21:37:36 +0200
From:   Ido Schimmel <idosch@...sch.org>
To:     David Ahern <dsahern@...il.com>
Cc:     netdev@...r.kernel.org, linux-kselftest@...r.kernel.org,
        idosch@...lanox.com, jiri@...lanox.com
Subject: Re: [PATCH net-next 3/5] selftests: forwarding: Handle 0 for packet
 difference in multipath tests

On Thu, Mar 01, 2018 at 11:09:45AM -0800, David Ahern wrote:
> If the packet stats have a difference of 0, the test output shows:
> INFO: Expected ratio 2.00 Measured ratio
> Runtime error (func=(main), adr=9): Divide by zero
> (standard_in) 2: syntax error
> (standard_in) 1: syntax error
> ./router_multipath.sh: line 187: test: : integer expression expected
> TEST: Multipath                                                     [FAIL]
> 	Too large discrepancy between expected and measured ratios
> 
> Handle the 0 and display a cleaner message:
> INFO: Running IPv6 multipath tests
> TEST: Multipath                                                     [FAIL]
> 	Packet difference is 0
> 
> Signed-off-by: David Ahern <dsahern@...il.com>

Reviewed-by: Ido Schimmel <idosch@...lanox.com>

Thanks!