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

[Mark Rutland]

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.

Thanks,
Mark.