linux-kernel - Re: [PATCH v7 00/13] perf/x86/amd: Add AMD Fam19h Branch Sampling support

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Message-ID: <20220325082855.GL8939@worktop.programming.kicks-ass.net>
Date:   Fri, 25 Mar 2022 09:28:55 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Stephane Eranian <eranian@...gle.com>
Cc:     linux-kernel@...r.kernel.org, kim.phillips@....com,
        acme@...hat.com, jolsa@...hat.com, songliubraving@...com,
        rafael@...nel.org, ravi.bangoria@....com, Sandipan.Das@....com
Subject: Re: [PATCH v7 00/13] perf/x86/amd: Add AMD Fam19h Branch Sampling
 support

On Thu, Mar 24, 2022 at 10:31:38PM -0700, Stephane Eranian wrote:
> On Thu, Mar 24, 2022 at 7:59 AM Peter Zijlstra <peterz@...radead.org> wrote:
> >
> > On Tue, Mar 22, 2022 at 03:15:04PM -0700, Stephane Eranian wrote:
> > > V7 makes the following changes:
> > >    - rebased to 5.17-rc8
> > >    - Restrict BRS to be used only with RETIRED_TAKEN_BRANCH event in order to
> > >      avoid adding more skid to other events in case that are monitored
> > >      concurrently
> > >    - fixed bugs in the perf tool enhanced error handling for IBS and BRS
> >
> > But afaict you failed to pick up the build fixes I did in my tree :/ Let
> > me try and be careful preserving those while munging this in.
> 
> Sorry. I missed that. I can resubmit if you prefer.

Nah, fixed it up again.. Even converted to static_call() this time.

Could you please test this branch?

  https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/log/?h=perf/amd

I've since done more Changelog edits, and I should do a comment with the
static_call_mod() usage, but I think this ought to work.

At least it now actually builds...