Re: [Patch v10 00/10] Perf tools: Support eGPRs/SSP/SIMD registers sampling

[Peter Zijlstra]

On Thu, Sep 10, 2026 at 10:33:40AM -0300, Arnaldo Carvalho de Melo wrote:
> On Thu, Sep 10, 2026 at 10:59:51AM +0800, Mi, Dapeng wrote:
> > Peter queued the dependent perf patches into the tip perf/core tree.
>  
> > https://lore.kernel.org/all/20260824082731.1013973-1-dapeng1.mi@xxxxxxxxxxxxxxx/
>  
> > But since there are UAPI changes, these perf-tools patches would lead to
> > errors without the corresponding perf patches. 
>  
> > @Arnaldo, @Namhyung, @Ian how would we handle such kind of dependency
> > issues generally? Wait for the dependent perf patches merged into mainline
> > and then merge the perf-tools patches?
> 
> That would slow down development, if it made perf kernel upstream, even
> if not yet to Linus, we can update the header in perf-tools-next, the
> check_headers script will warn about it, but now it is not running by
> default so no distracting warning and if when we decide to run it we got
> advanced warning that it will take some time to sort out, i.e. when the
> perf kernel UAPI header hits upstream and perf-tools-next merges with
> it.
> 
> So send perf kernel patches to Peter and the tooling ones to me and
> Namhyung.
> 

Patches are in tip/perf/core.