diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-10-22 13:22:06 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2021-02-04 10:45:25 +0300 |
| commit | 5ca67688256a0aeede5cba288eaef4d8e4a9e622 (patch) | |
| tree | f1720294f847f5238db5720cc231f64fc7575c78 /drivers/thunderbolt/tb.c | |
| parent | 3cd542e6e6afb6fa6c34d4094d498f42e22110f5 (diff) | |
| download | linux-5ca67688256a0aeede5cba288eaef4d8e4a9e622.tar.bz2 | |
thunderbolt: Allow disabling XDomain protocol
This allows disabling XDomain protocol completely if the user does not
plan to use the USB4/Thunderbolt peer-to-peer functionality, or for
security reasons.
XDomain protocol is enabled by default but with this commit it is
possible to disable it by passing "xdomain=0" as module parameter (or
through the kernel command line).
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Yehezkel Bernat <YehezkelShB@gmail.com>
Diffstat (limited to 'drivers/thunderbolt/tb.c')
| -rw-r--r-- | drivers/thunderbolt/tb.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c index 413955aa6a94..ad3c285026d5 100644 --- a/drivers/thunderbolt/tb.c +++ b/drivers/thunderbolt/tb.c @@ -179,6 +179,9 @@ static void tb_scan_xdomain(struct tb_port *port) struct tb_xdomain *xd; u64 route; + if (!tb_is_xdomain_enabled()) + return; + route = tb_downstream_route(port); xd = tb_xdomain_find_by_route(tb, route); if (xd) { |