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    Subject[PATCH AUTOSEL 5.13 117/219] thunderbolt: Fix port linking by checking all adapters
    Date
    From: Sanjay R Mehta <sanju.mehta@amd.com>

    [ 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 | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
    index a82032c081e8..03229350ea73 100644
    --- a/drivers/thunderbolt/switch.c
    +++ b/drivers/thunderbolt/switch.c
    @@ -2308,7 +2308,7 @@ static void tb_switch_default_link_ports(struct tb_switch *sw)
    {
    int i;

    - for (i = 1; i <= sw->config.max_port_number; i += 2) {
    + for (i = 1; i <= sw->config.max_port_number; i++) {
    struct tb_port *port = &sw->ports[i];
    struct tb_port *subordinate;

    --
    2.30.2
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