Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 5.13 117/219] thunderbolt: Fix port linking by checking all adapters | Date | Thu, 9 Sep 2021 07:44:53 -0400 |
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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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