Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-12-29 09:16:33 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

thunderbolt: Mark XDomain as unplugged when router is removed

Browse Source 
commit e2006140ad upstream.

I noticed that when we do discrete host router NVM upgrade and it gets
hot-removed from the PCIe side as a result of NVM firmware authentication,
if there is another host connected with enabled paths we hang in tearing
them down. This is due to fact that the Thunderbolt networking driver
also tries to cleanup the paths and ends up blocking in
tb_disconnect_xdomain_paths() waiting for the domain lock.

However, at this point we already cleaned the paths in tb_stop() so
there is really no need for tb_disconnect_xdomain_paths() to do that
anymore. Furthermore it already checks if the XDomain is unplugged and
bails out early so take advantage of that and mark the XDomain as
unplugged when we remove the parent router.

Cc: stable@vger.kernel.org
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 2024-06-13 15:05:03 +03:00 committed by Greg Kroah-Hartman
parent 0f0654318e
commit 747bc15457
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/thunderbolt/switch.c
View File

@ -2584,6 +2584,7 @@ void tb_switch_remove(struct tb_switch *sw)
tb_switch_remove(port->remote->sw);
port->remote = NULL;
} else if (port->xdomain) {
port->xdomain->is_unplugged = true;
tb_xdomain_remove(port->xdomain);
port->xdomain = NULL;
}