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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Shuah Khan CC: , , Subject: [PATCH net] selftests: net: make busywait timeout clock portable Date: Fri, 26 Jun 2026 07:49:02 -0700 Message-ID: <20260626144902.3214350-1-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: SN1PEPF00036F3D:EE_|MW4PR12MB7013:EE_ X-MS-Office365-Filtering-Correlation-Id: 2766afe5-b29f-463e-7a72-08ded39221a1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|1800799024|23010399003|36860700016|82310400026|13003099007|6133799003|18002099003|56012099006|11063799006; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(376014)(1800799024)(23010399003)(36860700016)(82310400026)(13003099007)(6133799003)(18002099003)(56012099006)(11063799006);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: Tw9CnNB6YQgySXj8Al9HW79Wq8k+EzQdgLaEZ79darwv8y6sgjfBduZHn37PxzgNxAhqvCB1q5PDI8RyRH4zP2WLvjnDA7ZTjd7THEZryubCXsTYkr/Os8gXH5OFkVQJevONrk3X32MT0PtelS3EF6nmXwQz1/TtsNNN+qAW4IuelZsJGxXXjrbMOODnv7SDsPnc6I++XK32nfdnn37bC98R8cS312k9XfUF7HiO4Gh9q/Kenh63Q+MHPvbO6ogGLe13GzisB9xJ/gl5iDxfbqHAoun5j83YZEgxeB+5C5DBRReEVS84MSeYdvjwtd1uLFhdvy783H06akjY4ao0Bj7o8oI9vAkalJ19/ffon+51rjaFSptxh5r5v0tB3UVC19RT9q8Re1Iin2uiRhzNMDDVNIntulXBR11i7tcTDbhhvPr26sEXJmPDMIzBqd+I X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Jun 2026 14:49:31.4568 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2766afe5-b29f-463e-7a72-08ded39221a1 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SN1PEPF00036F3D.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB7013 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 --- tools/testing/selftests/net/lib.sh | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh index b40694573f4c7..fcaec058be6d0 100644 --- a/tools/testing/selftests/net/lib.sh +++ b/tools/testing/selftests/net/lib.sh @@ -70,12 +70,27 @@ ksft_exit_status_merge() $ksft_xfail $ksft_pass $ksft_skip $ksft_fail } +timestamp_ms() +{ + local now=$(date -u +%s:%N) + local seconds=${now%:*} + local nanoseconds=${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=$1; shift - local start_time="$(date -u +%s%3N)" + local start_time=$(timestamp_ms) while true do local out @@ -84,7 +99,7 @@ loopy_wait() return 0 fi - local current_time="$(date -u +%s%3N)" + local current_time=$(timestamp_ms) if ((current_time - start_time > timeout_ms)); then echo -n "$out" return 1 -- 2.43.0