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Message-ID: <Znp5kEhm79Myg4zW@gmail.com>
Date: Tue, 25 Jun 2024 01:02:24 -0700
From: Breno Leitao <leitao@...ian.org>
To: Jakub Kicinski <kuba@...nel.org>
Cc: davem@...emloft.net, netdev@...r.kernel.org, edumazet@...gle.com,
pabeni@...hat.com, willemdebruijn.kernel@...il.com,
ecree.xilinx@...il.com, dw@...idwei.uk,
przemyslaw.kitszel@...el.com, michael.chan@...adcom.com,
andrew.gospodarek@...adcom.com
Subject: Re: [PATCH net-next v2 1/4] selftests: drv-net: try to check if port
is in use
On Mon, Jun 24, 2024 at 06:02:07PM -0700, Jakub Kicinski wrote:
> We use random ports for communication. As Willem predicted
> this leads to occasional failures. Try to check if port is
> already in use by opening a socket and binding to that port.
>
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>
> ---
> v2:
> - remove v4 check (Willem)
> - update comment (David, Przemek)
> - cap the iterations (Przemek)
> ---
> tools/testing/selftests/net/lib/py/utils.py | 14 ++++++++++++--
> 1 file changed, 12 insertions(+), 2 deletions(-)
>
> diff --git a/tools/testing/selftests/net/lib/py/utils.py b/tools/testing/selftests/net/lib/py/utils.py
> index 0540ea24921d..16907b51e034 100644
> --- a/tools/testing/selftests/net/lib/py/utils.py
> +++ b/tools/testing/selftests/net/lib/py/utils.py
> + except OSError as e:
> + if e.errno != 98: # already in use
To make it a bit clearer, you can use something as:
import errno
if e.errno != errno.EADDRINUSE
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