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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Shuah Khan CC: , , , Nirmoy Das Subject: [PATCH net v2] selftests: net: make busywait timeout clock portable Date: Tue, 30 Jun 2026 09:51:57 -0700 Message-ID: <20260630165157.3814871-1-nirmoyd@nvidia.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: rnnvmail203.nvidia.com (10.129.68.9) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH1PEPF0000AD75:EE_|DS0PR12MB7900:EE_ X-MS-Office365-Filtering-Correlation-Id: 2e5a17f5-1e88-472c-0961-08ded6c7fac4 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|376014|36860700016|1800799024|23010399003|13003099007|18002099003|56012099006|11063799006|6133799003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(82310400026)(376014)(36860700016)(1800799024)(23010399003)(13003099007)(18002099003)(56012099006)(11063799006)(6133799003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: Yfd5rvebk2dDLobXH53MMCNK9zwuoH5lx3SucW6oB4g+qUrMok+ptZ6Cs+YKc1SQ0lS2Bm5CQoYLEbkR1TwD36J5giHky0T7Y6mFmFqQ18QYk/rhU8U/eTtTsdAPd8+1Jt3/HGPL+dboUB0avaAP2URRNkAOS0sfL9+BCLT/5oDZ4cjms5yaSMHMosmjHAEjsi0If3Lf8ywrFvXCDACSfcXlFl6gL79mg8qP+2OSKnQ5qduw68d+I2e23pEqot+xCxTtuV1OCynTCYFIXOTQmFHo+duy6HrnDRWRcvzHOfGd8AtairJOTz4LNxyH1FUFtJKgxYaUVpj4d1eIYeh55YL/KirBEa10j2K1Na0X4h0N8+m4n+p7oeCL7jTstH5Ef3eWZ9b7BIzLpeYr+DE7XDFM1nQ74U253nR2BuL7hpVWL5mRjM9sdb5vytpY9Qvj X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Jun 2026 16:52:32.5523 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2e5a17f5-1e88-472c-0961-08ded6c7fac4 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CH1PEPF0000AD75.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB7900 loopy_wait() expects millisecond timestamps. However, Ubuntu Resolute can use uutils date, where `date -u +%s%3N` returns seconds plus full nanoseconds instead of a 3-digit millisecond field. This makes busywait expire too early and can make vlan_bridge_binding.sh read a stale operstate. Fixes: 25ae948b4478 ("selftests/net: add lib.sh") Cc: stable@vger.kernel.org # 6.8+ Link: https://github.com/uutils/coreutils/issues/11658 Signed-off-by: Nirmoy Das --- Changes in v2: - Declare variables separately from command substitutions and propagate timestamp failures, addressing ShellCheck SC2155. tools/testing/selftests/net/lib.sh | 25 +++++++++++++++++++++++-- 1 file changed, 23 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh index b40694573f4c7..d030d45c0e603 100644 --- a/tools/testing/selftests/net/lib.sh +++ b/tools/testing/selftests/net/lib.sh @@ -70,12 +70,33 @@ ksft_exit_status_merge() $ksft_xfail $ksft_pass $ksft_skip $ksft_fail } +timestamp_ms() +{ + local now + local seconds + local nanoseconds + + now=$(date -u +%s:%N) || return + seconds=${now%:*} + nanoseconds=${now#*:} + + if [[ $nanoseconds =~ ^[0-9]+$ ]]; then + nanoseconds=${nanoseconds:0:9} + else + nanoseconds=0 + fi + + echo $((seconds * 1000 + 10#$nanoseconds / 1000000)) +} + loopy_wait() { local sleep_cmd=$1; shift local timeout_ms=$1; shift + local start_time + local current_time - local start_time="$(date -u +%s%3N)" + start_time=$(timestamp_ms) || return while true do local out @@ -84,7 +105,7 @@ loopy_wait() return 0 fi - local current_time="$(date -u +%s%3N)" + current_time=$(timestamp_ms) || return if ((current_time - start_time > timeout_ms)); then echo -n "$out" return 1 base-commit: e7cffd183c128af12683aba28ba163017ea2b192 -- 2.43.0