thunderbolt: Fix port linking by checking all adapters
authorSanjay R Mehta <sanju.mehta@amd.com>
Tue, 3 Aug 2021 12:34:56 +0000 (07:34 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 18 Sep 2021 11:40:27 +0000 (13:40 +0200)
commit491c8be21993bdb63f36dba3b7004d8bce6a83ff
treeddaa2f033c1859bde35a25570fde2e46e2295888
parent0f0f1de02b9b1c793cff929b55c42b9fda7680b1
thunderbolt: Fix port linking by checking all adapters

[ Upstream commit 42716425ad7e1b6529ec61c260c11176841f4b5f ]

In tb_switch_default_link_ports(), while linking of ports,
only odd-numbered ports (1,3,5..) are considered and even-numbered
ports are not considered.

AMD host router has lane adapters at 2 and 3 and link ports at adapter 2
is not considered due to which lane bonding gets disabled.

Hence added a fix such that all ports are considered during
linking of ports.

Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Sanjay R Mehta <sanju.mehta@amd.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/thunderbolt/switch.c