netdev - [PATCH v2 03/10] thunderbolt: Create XDomain devices for loops back to the host

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Message-Id: <20201110091957.17472-4-mika.westerberg@linux.intel.com>
Date:   Tue, 10 Nov 2020 12:19:50 +0300
From:   Mika Westerberg <mika.westerberg@...ux.intel.com>
To:     linux-usb@...r.kernel.org
Cc:     Michael Jamet <michael.jamet@...el.com>,
        Yehezkel Bernat <YehezkelShB@...il.com>,
        Andreas Noever <andreas.noever@...il.com>,
        Isaac Hazan <isaac.hazan@...el.com>,
        Lukas Wunner <lukas@...ner.de>,
        "David S . Miller" <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        netdev@...r.kernel.org
Subject: [PATCH v2 03/10] thunderbolt: Create XDomain devices for loops back to the host

It is perfectly possible to have loops back from the routers to the
host, or even from one host port to another. Instead of ignoring these,
we create XDomain devices for each. This allows creating services such
as DMA traffic test that is used in manufacturing for example.

Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
Acked-by: Yehezkel Bernat <YehezkelShB@...il.com>
---
 drivers/thunderbolt/xdomain.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/thunderbolt/xdomain.c b/drivers/thunderbolt/xdomain.c
index e436e9efa7e7..da229ac4e471 100644
--- a/drivers/thunderbolt/xdomain.c
+++ b/drivers/thunderbolt/xdomain.c
@@ -961,10 +961,8 @@ static void tb_xdomain_get_uuid(struct work_struct *work)
 		return;
 	}
 
-	if (uuid_equal(&uuid, xd->local_uuid)) {
+	if (uuid_equal(&uuid, xd->local_uuid))
 		dev_dbg(&xd->dev, "intra-domain loop detected\n");
-		return;
-	}
 
 	/*
 	 * If the UUID is different, there is another domain connected
-- 
2.28.0