From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f202.google.com (mail-pl1-f202.google.com [209.85.214.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3813C346777 for ; Fri, 10 Apr 2026 21:54:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775858064; cv=none; b=ebotlvIw30CXqMZyrGmPweXmjkwse9n/q65qQsDVJSrYrOoJkqb/xFM3OxPxyVV/AcnTeRHyy9Y9n7drtwmK6TZu6H2kg+W4FCl12EtbtvwqbJlFJHtVptkhXMUmPfkGzPkR03Puk8+sxbYGEd2RXVg3nHhu7qgdnBZ9uRaHJe8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775858064; c=relaxed/simple; bh=2GYZKiMmESfr8HQrwf8o4CAPwyYxvDvPXuCBbAISynk=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=MtdP+dEGOr1bScTyv0r5Tj8HzNflyxjBnlpklObsBAxEOk9uo0vTJR1F8GPtw47A3VK3L/euU8QeWcHfs16DaCKB3zUUos6pFATrclSvIzeUDhY/ZZ9Dmg1Pk6DU5SE8x6FonObXvSABZD8JVRQVbJ5GnWdbn5DyeCxkapsWcTc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--kuniyu.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=rua2GcJG; arc=none smtp.client-ip=209.85.214.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--kuniyu.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="rua2GcJG" Received: by mail-pl1-f202.google.com with SMTP id d9443c01a7336-2b242062308so49031585ad.2 for ; Fri, 10 Apr 2026 14:54:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1775858062; x=1776462862; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=xiir2wXTWRWwN3biMYKwe5yW+4f9Zx4AfQCfsTlrFFc=; b=rua2GcJGM3+Y3G/6alRFhyiJJABHYAFR18KYyLqGwyEtgLnJCtcurrfVJdGu/Z2FCl 7ufbv5mh6N81bE9Hs0l6PZAmPp0lF4UqN144nvPc5zzfWnQUp3EPZALMZLTahGV/Rus3 OZrfpiFn5XUgGy+t3xjJkedxFV3zpIT8dJz0zeIZoxjqhexIxPwI8MIR0zURg5XonaU8 Q87sLrgrZuQ0Y0ANqeLswadevR9iUmW0neJEhnxtsR6SiT1A0rZiBWVxwJj3eNKVUekg o06qi0/ODJvR+xXY39VxVm1KvofKuBIyAF6h/2R5eiS/wZCTkLeijZYbhav8dvCG6so4 7dHw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775858062; x=1776462862; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=xiir2wXTWRWwN3biMYKwe5yW+4f9Zx4AfQCfsTlrFFc=; b=ZtwCrTHlXYTWja4y+t1ykBMKd78jAMBp0oj1nh81Qw5EG7ueVaT0R9EXeA5ig5n7fu 05FigRKeYgwYswLI6VY1yZIPwV54BsQ1S6JB0eeHAWLF8AmjBoNPaMF/T8Fxgyejl2+F eY5Yrad+XCUeb5HrWePzBGzW/DY4sOxhWufSdbJxpNc3RTfgMFDpUAdnaBMRmTmfACXH 6fm9Y/OSeV378QDaZzSfG3Tyiw2kEB0PejqmvtUpAB+sUvrFdqJD1cOCcW4OMss42QKg ivdmY5Nxs+UlHmxY7nSe+qJidARa2mv5tIOhp8rxH4bUmBTzM1GDx+EPDjMzAe2xCzW2 4IHA== X-Forwarded-Encrypted: i=1; AJvYcCVW8zSIB4aTCPwNsUPEHU1/DLTWRoORZMZjjdJPvjZNRCjSLaJC73NHdL+pYGhXablCS1i6j6s=@vger.kernel.org X-Gm-Message-State: AOJu0YzDsGoAJAt2/RVvyT5P8mlSed4A9QNAin8nTeOhy5n+IHcvXe6K 59IeFPl1l0GQnZoj416A9GWd3my6GW6mD/AJJhIu4UimuLj2PpMJn2LagbbTSJUTTR4rygjBHpt 1oS+wyw== X-Received: from plbbj6.prod.google.com ([2002:a17:902:8506:b0:2a8:a03b:32c7]) (user=kuniyu job=prod-delivery.src-stubby-dispatcher) by 2002:a17:903:b83:b0:2b0:59fd:bbe5 with SMTP id d9443c01a7336-2b2d5944aa5mr55256395ad.4.1775858062356; Fri, 10 Apr 2026 14:54:22 -0700 (PDT) Date: Fri, 10 Apr 2026 21:54:17 +0000 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.53.0.1213.gd9a14994de-goog Message-ID: <20260410215420.1698033-1-kuniyu@google.com> Subject: [PATCH v1 net-next] selftest: net: Use port outside of the default ip_local_ports in csum.c. From: Kuniyuki Iwashima To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Simon Horman , Willem de Bruijn , Mahesh Bandewar , Kuniyuki Iwashima , Kuniyuki Iwashima , netdev@vger.kernel.org Content-Type: text/plain; charset="UTF-8" csum.c binds a socket on a fixed port in init_net to test the csum offload feature between two machines. In our testbed, the test sometimes fails with -EADDRINUSE. bind r: Address already in use bind dgram 6: Address already in use The fixed ports (33000, 33001, 34000) are all within the default ip_local_ports range (32768 ~ 60999), and other processes may happen to be using them. Let's use ports outside of the default ip_local_ports range to deflake the test. # cat /etc/services | grep -E "(13000|13001|13002)" | echo no service no service # rpm -qf /etc/services setup-2.15.0-28.fc44.noarch We could add an option to specify ports if needed. Suggested-by: Mahesh Bandewar Signed-off-by: Kuniyuki Iwashima --- tools/testing/selftests/net/lib/csum.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/net/lib/csum.c b/tools/testing/selftests/net/lib/csum.c index e28884ce3ab3..4e044689bc37 100644 --- a/tools/testing/selftests/net/lib/csum.c +++ b/tools/testing/selftests/net/lib/csum.c @@ -105,9 +105,9 @@ static char *cfg_mac_src; static int cfg_proto = IPPROTO_UDP; static int cfg_payload_char = 'a'; static int cfg_payload_len = 100; -static uint16_t cfg_port_dst = 34000; -static uint16_t cfg_port_src = 33000; -static uint16_t cfg_port_src_encap = 33001; +static uint16_t cfg_port_dst = 13000; +static uint16_t cfg_port_src = 13001; +static uint16_t cfg_port_src_encap = 13002; static unsigned int cfg_random_seed; static int cfg_rcvbuf = 1 << 22; /* be able to queue large cfg_num_pkt */ static bool cfg_send_pfpacket; -- 2.53.0.1213.gd9a14994de-goog