Re: [PATCH v2 1/4] coresight: syscfg: Fail to enable a configuration not loaded on the device

[Leo Yan]

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@xxxxxx>

Reviewed-by: Leo Yan <leo.yan@xxxxxxx>