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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Jul 2025 09:49:39.1735 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 99b574f9-656b-416e-2f68-08ddb94dc310 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[4.158.2.129];Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: DB5PEPF00014B96.eurprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DBBPR08MB6233 Hi Leo, > { > - return local_cmpxchg(&csdev->mode, CS_MODE_DISABLED, new_mode) == > - CS_MODE_DISABLED; > + int curr = CS_MODE_DISABLED; > + > + return atomic_try_cmpxchg_acquire(&csdev->mode, &curr, new_mode); > } Just question. why is acquire symentic enough in here? before this change, local_cmpxchg seems to use full_fenced. -- Sincerely, Yeoreum Yun