Re: [PATCH 08/32] usb: typec: tcpm: tcpm: Remove dangling unused 'struct tcpm_altmode_ops'

From: Hans de Goede
Date: Thu Jul 09 2020 - 08:50:55 EST


Hi,

On 7/6/20 4:20 PM, Lee Jones wrote:
On Mon, 06 Jul 2020, Hans de Goede wrote:

Hi,

On 7/6/20 3:33 PM, Lee Jones wrote:
Looks as though a079973f462a3 ("usb: typec: tcpm: Remove tcpc_config
configuration mechanism") pulled out the only use of 'tcpm_altmode_ops'
last year. No need to keep it around.

Fixes the following W=1 kernel build warning(s):

drivers/usb/typec/tcpm/tcpm.c:1551:39: warning: âtcpm_altmode_opsâ defined but not used [-Wunused-const-variable=]
1551 | static const struct typec_altmode_ops tcpm_altmode_ops = {
| ^~~~~~~~~~~~~~~~

Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Cc: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Cc: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>

This is necessary for adding Display port over Type-C support
on devices using the tcpm code, rather then firmware, to do
the Type-C alt-mode negotiation.

I have a local patch in my tree which adds support for this.

But Heikki did not like my approach, so that patch
(which needs the bits you are removing) never landed
upstream:

https://patchwork.kernel.org/patch/11199517/

Which is somewhat old now.

Yes, that's a just a little old now.

If it drags on for much longer, perhaps consider taking it out for the
time being and adding it back when you start to make use of it again?

Heikki said he would look into an approach to this more to
his liking. Heikki an progress on this area?

Just a little headsup that I'm making some time now to take a look
at solving this in the previously discussed better way, with the hope
of that we can get that upstream. So hopefully I will have some
patches for this ready during the upcoming weekend.

Regards,

Hans