[PATCH v3] coresight: etm4x: add CPU hotplug support for probing

[Suzuki K Poulose]

On 11/07/2022 16:41, Tamas Zsoldos wrote:
> etm4x devices cannot be successfully probed when their CPU is offline.
> For example, when booting with maxcpus=n, ETM probing will fail on
> CPUs >n, and the probing won't be reattempted once the CPUs come
> online. This will leave those CPUs unable to make use of ETM.
> 
> This change adds a mechanism to delay the probing if the corresponding
> CPU is offline, and to try it again when the CPU comes online.
> 
> Signed-off-by: Tamas Zsoldos <tamas.zsoldos at arm.com>
> ---
> 
> Changes since v2:
> * Fix tear down issue (thanks to Suzuki).
> 

Apologies for missing this one. I have now queued to next [0]

[0] 
https://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git/commit/?h=next&id=3c728e079d83f581a1f8b7755f6e26087b15c4fb

Suzuki