[PATCH 1/2] perf cs-etm: Change tuple from traceID-CPU# to traceID-metadata

[Leo Yan]

On Wed, Nov 25, 2020 at 09:23:23PM +0100, Salvatore Bonaccorso wrote:
> On Wed, Nov 25, 2020 at 09:12:14PM +0100, Salvatore Bonaccorso wrote:
> > From: Leo Yan <leo.yan at linaro.org>
> > 
> > commit 95c6fe970a0160cb770c5dce9f80311b42d030c0 upstream.

[...]

> That's a fallout on my end. Should have said: This is for 4.19
> specifically to be queued.
> 
> Background: in
> https://lore.kernel.org/stable/20201014135627.GA3698844@kroah.com/
> 168200b6d6ea0cb5765943ec5da5b8149701f36a was queued up for v4.19.y but
> the prerequeisite commit was not included and so resulted in build
> failures with gcc 8.3.0.
> 
> The commit was later on reverted but in this thread it was asked to
> actually make it possible to compile the file as well with more recent
> gcc versions.
> 
> Those two patches to be applied in 4.19.y only pick up a backport of
> the rerequisite commit 95c6fe970a0160cb770c5dce9f80311b42d030c0 (PATCH
> 1) followed up by the cherry-pick of
> 168200b6d6ea0cb5765943ec5da5b8149701f36a again.

Since the patch 01 is minor tweaked due to context difference, I
manually compared it with original patch and looks good to me.

Thank you for the back porting,
Leo