Re: [PATCH V8 5/6] arm64/perf: Add branch stack support in ARMV8 PMU

[Anshuman Khandual]

On 2/9/23 01:36, Mark Rutland wrote:
> On Mon, Feb 06, 2023 at 09:46:25AM +0530, Anshuman Khandual wrote:
>> On 2/3/23 17:01, Will Deacon wrote:
>>> On Tue, Jan 31, 2023 at 12:28:17AM +0800, kernel test robot wrote:
> 
> [...]
> 
>>> This looks like it should be fixed. I'd also like to see Mark's ack on the
>>
>> This build warning is triggered when CONFIG_PERF_EVENTS is not enabled, when
>> all the fallback stubs in there try to use has_branch_stack() which does not
>> get defined. The following change, fixes the problem.
> 
> I expect that you'll post a v9 with that folded in, and I've just made some
> comments on v7 which I expect will require some changes, so I'm going to wait
> for v9 for further review to keep this manageable.

Sure, will work on a V9 and post when ready.