[PATCH v2] perf: cs-etm: Improve missing sink warning message

[Suzuki K Poulose]

On 24/01/2023 11:02, James Clark wrote:
> Make the sink error message more similar to the event error message that
> reminds about missing kernel support. The available sinks are also
> determined by the hardware so mention that too.
> 
> Also, usually it's not necessary to specify the sink, so add that as a
> hint.
> 
> Now the error for a made up sink looks like this:
> 
>    $ perf record -e cs_etm/@abc/
>    Couldn't find sink "abc" on event cs_etm/@abc/.
>    Missing kernel or device support?
> 
>    Hint: An appropriate sink will be picked automatically if one isn't is specified.
> 
> For any error other than ENOENT, the same message as before is
> displayed.
> 
> Signed-off-by: James Clark <james.clark at arm.com>

Acked-by: Suzuki K Poulose <suzuki.poulose at arm.com>