From patchwork Wed Jun 5 09:21:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Matthieu Baerts (NGI0)" X-Patchwork-Id: 13686454 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0A3D719007C; Wed, 5 Jun 2024 09:21:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717579314; cv=none; b=VghSyVBwiCw6KG7AMwllVeWB7PFH9Kd/YqTyk8nG8KpuUj7IN6xoqSaL6OLwCOLbytjzbQQXiVQazjK3bca7F6hKKba2t1nOY2/FtbRESitgMJVlCg1nGLm3SMIJKjzfdwT1o1S9FdsXx55aSMqf6hkv/GYVXi0pCvTK1mEAkyI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717579314; c=relaxed/simple; bh=enGOqa2B+5IPGqxwH+TThhdDQRn5ztIFxzAZ0zyx8GY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=RkPyjLPkbMjqRDr/hhRr6RILstyRWMIxfsbeAwvRRGAqiB8NGpcHjxy5tYr6yGidHzJjXzz64IlKaMXXZHWE/ikoDnFZGgjG6gJYntAUU98SnqCJcwsIDqdoz74Qbo9fyiQJFOlAh/YfaIHJZ5VBa9N+939Wg2TGCdTx5e9+B/k= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=uniIUkQ6; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="uniIUkQ6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A628CC3277B; Wed, 5 Jun 2024 09:21:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1717579313; bh=enGOqa2B+5IPGqxwH+TThhdDQRn5ztIFxzAZ0zyx8GY=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=uniIUkQ6GLS+bp+dB3bacO+S48J+9YpCBVW0sOBrHTxxPcLQ89xQalHlpg5qRX03K Mmm5hfV+mYWOWxNI+f+oLbPGclIsHRzvsZp1ANVNVlpbFY1nVz4enMCekp3Bs1f0Sy x8n/S8GmkS1x1csFubwno0rc3Rh+zFI2eT1P/NMCQ+oXAExcGQRIIFEPylynEn08f1 pEuIsyWfHHhL7zHKBE0kmYwZlmGn0tgWyBSvY0Dw7tPvxGisoASFv7Epmucvu4xSsn M+OT/oBu/QOL78wN5uWrEtD4OYAbAeBh7zp7IGN04HvIvv9QMtXlTmkcfDTzTneJB0 zwaRsEs8cCLsg== From: "Matthieu Baerts (NGI0)" Date: Wed, 05 Jun 2024 11:21:17 +0200 Subject: [PATCH net 2/3] selftests: net: lib: avoid error removing empty netns name Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240605-upstream-net-20240605-selftests-net-lib-fixes-v1-2-b3afadd368c9@kernel.org> References: <20240605-upstream-net-20240605-selftests-net-lib-fixes-v1-0-b3afadd368c9@kernel.org> In-Reply-To: <20240605-upstream-net-20240605-selftests-net-lib-fixes-v1-0-b3afadd368c9@kernel.org> To: mptcp@lists.linux.dev, "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Shuah Khan , Petr Machata , Hangbin Liu Cc: netdev@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, "Matthieu Baerts (NGI0)" , stable@vger.kernel.org, Geliang Tang X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2281; i=matttbe@kernel.org; h=from:subject:message-id; bh=enGOqa2B+5IPGqxwH+TThhdDQRn5ztIFxzAZ0zyx8GY=; b=owEBbQKS/ZANAwAIAfa3gk9CaaBzAcsmYgBmYC4nGiVW/UASfgQkNfz8Pi5KnqQIsBRBaxK9z e7j+EROYMyJAjMEAAEIAB0WIQToy4X3aHcFem4n93r2t4JPQmmgcwUCZmAuJwAKCRD2t4JPQmmg cx+MEACqQPHx7QRfc4oIT4HcCVSlHyo3LxSqv1sAD4887LfJmt9UWzyTVIiJunL3DB1CUGZxyus wDObaEWBokUg2Yny6Gupsxjh0RW7qvjkTEmX+WLToYb7uWwpsll78ilBDS+3m8DbgERFSgCmWti 3Z5QqDmiFaloTgUP7Q71nxN/znbGiU5B6b/yue2IDdMWJWjpMBEKbXl4vtpbTCFf0brz6wJEjQ9 lwEEx+q6z6XjMFr7oHGdH7cL+l7fUTN2nGfCsYjCX1ri9GIulZ8D4ial+OSyZcyyOAumhd14oyZ znG9ycG9rpx+tNRr/aq72m0UPTLdjprWLUxdqsD81z+aOEO0Ygtf8OS9vzyTL/DEcQqFIegyzZn WweEgz6O+kiTlHUOxjrcc9OiTXQaoCdKOLbdZgWZjyIHdpHh9NgggbJJk8Eh7E04Iy4wfSUlO2M d9sszu3f+fqLwsPN93f0nknFFzftjqCEetQ/q3QnJPGBPhidjrbbfvA3nPUAoXBrEinxCwNyb+O fR5UUn3IOhR8GgpJRdTIQA7BJ66ShLIW74kzI/ZyLsV1WxKZhFMkv16xnIDwbOX8RT4nBoiHCWW C6cU0wlwiiWgmQWTBklNvELv3N3skyQ2vSpAkPFSdUBsDgisFxNji/OIgYh+CzZyEcW5Flb/y/n Nz2pQjsY+x3QVVg== X-Developer-Key: i=matttbe@kernel.org; a=openpgp; fpr=E8CB85F76877057A6E27F77AF6B7824F4269A073 If there is an error to create the first netns with 'setup_ns()', 'cleanup_ns()' will be called with an empty string as first parameter. The consequences is that 'cleanup_ns()' will try to delete an invalid netns, and wait 20 seconds if the netns list is empty. Instead of just checking if the name is not empty, convert the string separated by spaces to an array. Manipulating the array is cleaner, and calling 'cleanup_ns()' with an empty array will be a no-op. Fixes: 25ae948b4478 ("selftests/net: add lib.sh") Cc: stable@vger.kernel.org Acked-by: Geliang Tang Signed-off-by: Matthieu Baerts (NGI0) Reviewed-by: Petr Machata Reviewed-by: Hangbin Liu --- tools/testing/selftests/net/lib.sh | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh index a422e10d3d3a..e2f51102d7e1 100644 --- a/tools/testing/selftests/net/lib.sh +++ b/tools/testing/selftests/net/lib.sh @@ -15,7 +15,7 @@ ksft_xfail=2 ksft_skip=4 # namespace list created by setup_ns -NS_LIST="" +NS_LIST=() ############################################################################## # Helpers @@ -137,6 +137,7 @@ cleanup_ns() fi for ns in "$@"; do + [ -z "${ns}" ] && continue ip netns delete "${ns}" &> /dev/null if ! busywait $BUSYWAIT_TIMEOUT ip netns list \| grep -vq "^$ns$" &> /dev/null; then echo "Warn: Failed to remove namespace $ns" @@ -150,7 +151,7 @@ cleanup_ns() cleanup_all_ns() { - cleanup_ns $NS_LIST + cleanup_ns "${NS_LIST[@]}" } # setup netns with given names as prefix. e.g @@ -159,7 +160,7 @@ setup_ns() { local ns="" local ns_name="" - local ns_list="" + local ns_list=() local ns_exist= for ns_name in "$@"; do # Some test may setup/remove same netns multi times @@ -175,13 +176,13 @@ setup_ns() if ! ip netns add "$ns"; then echo "Failed to create namespace $ns_name" - cleanup_ns "$ns_list" + cleanup_ns "${ns_list[@]}" return $ksft_skip fi ip -n "$ns" link set lo up - ! $ns_exist && ns_list="$ns_list $ns" + ! $ns_exist && ns_list+=("$ns") done - NS_LIST="$NS_LIST $ns_list" + NS_LIST+=("${ns_list[@]}") } tc_rule_stats_get()