On Mon, Oct 12, 2026 at 04:05:20PM -0700, Amir Ayupov wrote:

cscfg_csdev_enable_active_config() looks up the selected configuration in the device's loaded configurations, and returns success when it is not there. A configuration is only loaded on devices that match at least one of its features, so a perf session or sysfs enable that selects it on any other device runs without the configuration, with no error.

Return -EINVAL instead, so enabling the source fails on that device. The function is only called with a non-zero configuration hash, so sources enabled without a configuration are unaffected.

Fixes: f8cce2ff3c04 ("coresight: syscfg: Add API to activate and enable configurations") Assisted-by: Devmate:Opus-5.5 Signed-off-by: Amir Ayupov aaupov@fb.com

Reviewed-by: Leo Yan leo.yan@arm.com