[PATCH] perf arm-spe: Don't warn about the discard bit if it doesn't exist

[James Clark]

On 13/05/2026 1:55 pm, Ian Rogers wrote:
> On Wed, May 13, 2026 at 3:20 AM Leo Yan <leo.yan at arm.com> wrote:
>>
>> On Fri, Apr 10, 2026 at 12:05:12PM +0100, James Clark wrote:
>>> Opening an SPE event shows a warning that doesn't concern the user:
>>>
>>>    $ perf record -e arm_spe
>>>    Unknown/empty format name: discard
>>>
>>> Perf only wants to know if the discard bit is set for configuring the
>>> event, not in response to anything the user has done. Fix it by adding
>>> another helper that returns if a config bit exists without warning.
>>>
>>> We should probably keep the warning in evsel__get_config_val() to avoid
>>> having every caller having to do it, and most format bits should never
>>> be missing.
>>>
>>> Add a test for the new helper. Rename the parent test function to be
>>> more generic rather than adding a new one as it requires a lot of
>>> boilerplate.
>>>
>>> Signed-off-by: James Clark <james.clark at linaro.org>
>>
>> Reviewed-by: Leo Yan <leo.yan at arm.com>
> 
> Reviewed-by: Ian Rogers <irogers at google.com>
> 
> Thanks,
> Ian

Ping, thanks