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thunderbolt: Send uevent after asymmetric/symmetric switch

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commit 5391bcfa56 upstream.

We should send uevent to userspace whenever the link speed or width
changes but tb_switch_asym_enable() and tb_switch_asym_disable() set the
sw->link_width already so tb_switch_update_link_attributes() never
noticed the change.

Fix this so that we let tb_switch_update_link_attributes() update the
fields accordingly.

Fixes: 81af2952e6 ("thunderbolt: Add support for asymmetric link")
Reported-by: Pengfei Xu <pengfei.xu@intel.com>
Tested-by: Pengfei Xu <pengfei.xu@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mika Westerberg 2023-11-07 14:34:27 +02:00 committed by Greg Kroah-Hartman
parent 6b5630297e
commit 3dc5525d59
1 changed files with 2 additions and 2 deletions
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4
drivers/thunderbolt/switch.c
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@ -2981,6 +2981,7 @@ static int tb_switch_lane_bonding_disable(struct tb_switch *sw)
return tb_port_wait_for_link_width(down, TB_LINK_WIDTH_SINGLE, 100); return tb_port_wait_for_link_width(down, TB_LINK_WIDTH_SINGLE, 100);
} }
/* Note updating sw->link_width done in tb_switch_update_link_attributes() */
static int tb_switch_asym_enable(struct tb_switch *sw, enum tb_link_width width) static int tb_switch_asym_enable(struct tb_switch *sw, enum tb_link_width width)
{ {
struct tb_port *up, *down, *port; struct tb_port *up, *down, *port;
@ -3020,10 +3021,10 @@ static int tb_switch_asym_enable(struct tb_switch *sw, enum tb_link_width width)
return ret; return ret;
} }
sw->link_width = width;
return 0; return 0;
} }
/* Note updating sw->link_width done in tb_switch_update_link_attributes() */
static int tb_switch_asym_disable(struct tb_switch *sw) static int tb_switch_asym_disable(struct tb_switch *sw)
{ {
struct tb_port *up, *down; struct tb_port *up, *down;
@ -3058,7 +3059,6 @@ static int tb_switch_asym_disable(struct tb_switch *sw)
return ret; return ret;
} }
sw->link_width = TB_LINK_WIDTH_DUAL;
return 0; return 0;
} }