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From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: linux-usb@vger.kernel.org
Cc: Michael Jamet <michael.jamet@intel.com>,
	Yehezkel Bernat <YehezkelShB@gmail.com>,
	Andreas Noever <andreas.noever@gmail.com>,
	Isaac Hazan <isaac.hazan@intel.com>,
	Lukas Wunner <lukas@wunner.de>,
	"David S . Miller" <davem@davemloft.net>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Mika Westerberg <mika.westerberg@linux.intel.com>,
	netdev@vger.kernel.org
Subject: [PATCH v2 03/10] thunderbolt: Create XDomain devices for loops back to the host
Date: Tue, 10 Nov 2020 12:19:50 +0300	[thread overview]
Message-ID: <20201110091957.17472-4-mika.westerberg@linux.intel.com> (raw)
In-Reply-To: <20201110091957.17472-1-mika.westerberg@linux.intel.com>

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@linux.intel.com>
Acked-by: Yehezkel Bernat <YehezkelShB@gmail.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


  parent reply	other threads:[~2020-11-10  9:20 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-10  9:19 [PATCH v2 00/10] thunderbolt: Add DMA traffic test driver Mika Westerberg
2020-11-10  9:19 ` [PATCH v2 01/10] thunderbolt: Do not clear USB4 router protocol adapter IFC and ISE bits Mika Westerberg
2020-11-10  9:19 ` [PATCH v2 02/10] thunderbolt: Find XDomain by route instead of UUID Mika Westerberg
2020-11-10  9:19 ` Mika Westerberg [this message]
2020-11-10  9:19 ` [PATCH v2 04/10] thunderbolt: Add link_speed and link_width to XDomain Mika Westerberg
2020-11-10  9:19 ` [PATCH v2 05/10] thunderbolt: Add functions for enabling and disabling lane bonding on XDomain Mika Westerberg
2020-11-10  9:19 ` [PATCH v2 06/10] thunderbolt: Create debugfs directory automatically for services Mika Westerberg
2020-11-10  9:19 ` [PATCH v2 07/10] thunderbolt: Make it possible to allocate one directional DMA tunnel Mika Westerberg
2020-11-10  9:19 ` [PATCH v2 08/10] thunderbolt: Add support for end-to-end flow control Mika Westerberg
2020-11-10  9:19 ` [PATCH v2 09/10] thunderbolt: Add DMA traffic test driver Mika Westerberg
2020-11-10  9:19 ` [PATCH v2 10/10] MAINTAINERS: Add Isaac as maintainer of Thunderbolt " Mika Westerberg
2020-11-10  9:30 ` [PATCH v2 00/10] thunderbolt: Add " Greg Kroah-Hartman
2020-11-11  7:23   ` Mika Westerberg

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