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Date: Thu, 11 Nov 2021 13:42:40 +0100
From: Paolo Abeni <pabeni@...hat.com>
To: Willem de Bruijn <willemdebruijn.kernel@...il.com>,
netdev@...r.kernel.org
Cc: davem@...emloft.net, kuba@...nel.org, edumazet@...gle.com,
Willem de Bruijn <willemb@...gle.com>
Subject: Re: [PATCH net] selftests/net: udpgso_bench_rx: fix port argument
On Thu, 2021-11-11 at 06:57 -0500, Willem de Bruijn wrote:
> From: Willem de Bruijn <willemb@...gle.com>
>
> The below commit added optional support for passing a bind address.
> It configures the sockaddr bind arguments before parsing options and
> reconfigures on options -b and -4.
>
> This broke support for passing port (-p) on its own.
>
> Configure sockaddr after parsing all arguments.
>
> Fixes: 3327a9c46352 ("selftests: add functionals test for UDP GRO")
> Reported-by: Eric Dumazet <edumazet@...gle.com>
> Signed-off-by: Willem de Bruijn <willemb@...gle.com>
> ---
> tools/testing/selftests/net/udpgso_bench_rx.c | 11 +++++++----
> 1 file changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/tools/testing/selftests/net/udpgso_bench_rx.c b/tools/testing/selftests/net/udpgso_bench_rx.c
> index 76a24052f4b4..6a193425c367 100644
> --- a/tools/testing/selftests/net/udpgso_bench_rx.c
> +++ b/tools/testing/selftests/net/udpgso_bench_rx.c
> @@ -293,19 +293,17 @@ static void usage(const char *filepath)
>
> static void parse_opts(int argc, char **argv)
> {
> + const char *bind_addr = NULL;
> int c;
>
> - /* bind to any by default */
> - setup_sockaddr(PF_INET6, "::", &cfg_bind_addr);
> while ((c = getopt(argc, argv, "4b:C:Gl:n:p:rR:S:tv")) != -1) {
> switch (c) {
> case '4':
> cfg_family = PF_INET;
> cfg_alen = sizeof(struct sockaddr_in);
> - setup_sockaddr(PF_INET, "0.0.0.0", &cfg_bind_addr);
> break;
> case 'b':
> - setup_sockaddr(cfg_family, optarg, &cfg_bind_addr);
> + bind_addr = optarg;
> break;
> case 'C':
> cfg_connect_timeout_ms = strtoul(optarg, NULL, 0);
> @@ -341,6 +339,11 @@ static void parse_opts(int argc, char **argv)
> }
> }
>
> + if (!bind_addr)
> + bind_addr = cfg_family == PF_INET6 ? "::" : "0.0.0.0";
> +
> + setup_sockaddr(cfg_family, bind_addr, &cfg_bind_addr);
> +
> if (optind != argc)
> usage(argv[0]);
>
LGTM, thanks Willem,
Acked-by: Paolo Abeni <pabeni@...hat.com>
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