Re: [PATCH v4] PCI: Relabel JHL6540 on Lenovo X1 Carbon 7,8

Lukas Wunner
2024-06-26T08:50:29Z

On Mon, Jun 24, 2024 at 11:58:46AM -0400, Esther Shimanovich wrote:
> On Wed, May 15, 2024 at 4:45???PM Lukas Wunner <lukas@wunner.de> wrote:
> > Could you add this to the command line:
> > thunderbolt.dyndbg ignore_loglevel log_buf_len=10M
> >
> > and this to your kernel config:
> > CONFIG_DYNAMIC_DEBUG=y
> >
> > You should see "... is associated with ..." messages in dmesg.
>
> I tried Lukas's patches again, after enabling the Thunderbolt driver
> in the config and also verbose messages, so that I can see
> "thunderbolt:" messages, but it still never reaches the
> tb_pci_notifier_call function. I don't see "associated with" in any of
> the logs. The config on the image I am testing does not have the
> thunderbolt driver enabled by default, so this patch wouldn't help my
> use case even if I did manage to get it to work.

Mika, what do you make of this? Are the ChromeBooks in question
using ICM-based tunneling instead of native tunneling? I thought
this is all native nowadays and ICM is only used on older (pre-USB4)
products.

Thanks,

Lukas