On 7/6/2022 11:55 AM, Greg KH wrote:
> On Wed, Jul 06, 2022 at 12:39:38AM -0500, Sanjay R Mehta wrote:
>> From: Sanjay R Mehta <sanju.mehta@xxxxxxx>
>>
>> If the boot firmware implements a connection manager of its
>> own it may create a DP tunnel and will be handed off to Linux
>> CM, but the DP out resource is not saved in the dp_resource
>> list.
>>
>> This patch adds tunnelled DP out port to the dp_resource list
>> once the DP tunnel is discovered.
>>
>> Signed-off-by: Sanjay R Mehta <sanju.mehta@xxxxxxx>
>> Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@xxxxxxx>
>> ---
>> drivers/thunderbolt/tb.c | 15 +++++++++++++++
>> drivers/thunderbolt/tb.h | 1 +
>> drivers/thunderbolt/tunnel.c | 2 ++
>> 3 files changed, 18 insertions(+)
>>
>> diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c
>> index 9a3214f..dcd0c3e 100644
>> --- a/drivers/thunderbolt/tb.c
>> +++ b/drivers/thunderbolt/tb.c
>> @@ -1006,6 +1006,21 @@ static void tb_dp_resource_unavailable(struct tb *tb, struct tb_port *port)
>> tb_tunnel_dp(tb);
>> }
>>
>> +void tb_dp_resource_available_discovered(struct tb *tb, struct tb_port *port)
>> +{
>> + struct tb_cm *tcm = tb_priv(tb);
>> + struct tb_port *p;
>> +
>> + list_for_each_entry(p, &tcm->dp_resources, list) {
>> + if (p == port)
>> + return;
>> + }
>> +
>> + tb_port_dbg(port, "DP %s resource available discovered\n",
>> + tb_port_is_dpin(port) ? "IN" : "OUT");
>> + list_add_tail(&port->list, &tcm->dp_resources);
>> +}
>> +
>> static void tb_dp_resource_available(struct tb *tb, struct tb_port *port)
>> {
>> struct tb_cm *tcm = tb_priv(tb);
>> diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
>> index 4602c69..cef2fe3 100644
>> --- a/drivers/thunderbolt/tb.h
>> +++ b/drivers/thunderbolt/tb.h
>> @@ -1222,6 +1222,7 @@ struct usb4_port *usb4_port_device_add(struct tb_port *port);
>> void usb4_port_device_remove(struct usb4_port *usb4);
>> int usb4_port_device_resume(struct usb4_port *usb4);
>>
>> +void tb_dp_resource_available_discovered(struct tb *tb, struct tb_port *port);
>
> Why not put this in the .h file next to the other tb_* calls?
>
Sure Greg. Will make this change.
- Sanjay
> thanks,
>
> greg k-h
