Re: [PATCH] net/core/dev.c: enable timestamp static key if CPU isolation is configured

[Paolo Abeni]

On Tue, 2024-02-20 at 07:35 -0300, Marcelo Tosatti wrote:
> For systems that use CPU isolation (via nohz_full), creating or destroying
> a socket with  timestamping (SOF_TIMESTAMPING_OPT_TX_SWHW) might cause a
> static key to be enabled/disabled. This in turn causes undesired 
> IPIs to isolated CPUs.
> 
> So enable the static key unconditionally, if CPU isolation is enabled,
> thus avoiding the IPIs.
> 
> Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>

This looks like net-next material, but it does not apply cleanly to the
net-next tree. Could you please rebase and repost including the 'net-
next' tag into the patch prefix?

Thanks!

Paolo