From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: linux-usb@vger.kernel.org
Cc: Andreas Noever <andreas.noever@gmail.com>,
Michael Jamet <michael.jamet@intel.com>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Yehezkel Bernat <YehezkelShB@gmail.com>,
Rajmohan Mani <rajmohan.mani@intel.com>,
Nicholas Johnson <nicholas.johnson-opensource@outlook.com.au>,
Lukas Wunner <lukas@wunner.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Alan Stern <stern@rowland.harvard.edu>,
Mario.Limonciello@dell.com,
Anthony Wong <anthony.wong@canonical.com>,
linux-kernel@vger.kernel.org
Subject: [RFC PATCH 03/22] thunderbolt: Log warning if adding switch fails
Date: Tue, 1 Oct 2019 14:38:11 +0300
Message-ID: <20191001113830.13028-4-mika.westerberg@linux.intel.com> (raw)
In-Reply-To: <20191001113830.13028-1-mika.westerberg@linux.intel.com>
If we fail to add a switch for some reason log a warning with the error
code. This is useful for debugging.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
drivers/thunderbolt/tb.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c
index 1f7a9e1cc09c..541295be9bfc 100644
--- a/drivers/thunderbolt/tb.c
+++ b/drivers/thunderbolt/tb.c
@@ -143,6 +143,7 @@ static void tb_scan_port(struct tb_port *port)
struct tb_cm *tcm = tb_priv(port->sw->tb);
struct tb_port *upstream_port;
struct tb_switch *sw;
+ int ret;
if (tb_is_upstream_port(port))
return;
@@ -203,7 +204,9 @@ static void tb_scan_port(struct tb_port *port)
if (!tcm->hotplug_active)
dev_set_uevent_suppress(&sw->dev, true);
- if (tb_switch_add(sw)) {
+ ret = tb_switch_add(sw);
+ if (ret) {
+ dev_warn(&sw->dev, "failed to register switch: %d\n", ret);
tb_switch_put(sw);
return;
}
--
2.23.0
next prev parent reply index
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-01 11:38 [RFC PATCH 00/22] thunderbolt: Add support for USB4 Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 01/22] thunderbolt: Introduce tb_switch_is_icm() Mika Westerberg
2019-10-01 12:10 ` Greg Kroah-Hartman
2019-10-01 12:46 ` Mika Westerberg
2019-10-01 13:36 ` Mario.Limonciello
2019-10-01 13:48 ` Mika Westerberg
2019-10-01 13:50 ` Mario.Limonciello
2019-10-01 13:52 ` Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 02/22] thunderbolt: Log switch route string on config read/write timeout Mika Westerberg
2019-10-01 11:38 ` Mika Westerberg [this message]
2019-10-01 12:18 ` [RFC PATCH 03/22] thunderbolt: Log warning if adding switch fails Greg Kroah-Hartman
2019-10-01 12:48 ` Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 04/22] thunderbolt: Make tb_sw_write() take const parameter Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 05/22] thunderbolt: Add helper macros to iterate over switch ports Mika Westerberg
2019-10-02 14:17 ` Oliver Neukum
2019-10-02 14:28 ` Mika Westerberg
2019-10-06 12:15 ` Lukas Wunner
2019-10-01 11:38 ` [RFC PATCH 06/22] thunderbolt: Add support for lane bonding Mika Westerberg
2019-10-01 12:38 ` Greg Kroah-Hartman
2019-10-01 12:53 ` Mika Westerberg
2019-10-02 14:21 ` Oliver Neukum
2019-10-02 14:30 ` Mika Westerberg
2019-10-03 8:25 ` Oliver Neukum
2019-10-03 8:53 ` Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 07/22] thunderbolt: Add default linking between ports if not provided by DROM Mika Westerberg
2019-10-01 12:39 ` Greg Kroah-Hartman
2019-10-01 13:14 ` Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 08/22] thunderbolt: Add downstream PCIe port mappings for Alpine and Titan Ridge Mika Westerberg
2019-10-01 12:40 ` Greg Kroah-Hartman
2019-10-01 13:27 ` Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 09/22] thunderbolt: Convert basic adapter register names to follow the USB4 spec Mika Westerberg
2019-10-01 12:41 ` Greg Kroah-Hartman
2019-10-01 13:28 ` Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 10/22] thunderbolt: Convert PCIe adapter register names to use USB4 names Mika Westerberg
2019-10-01 12:42 ` Greg Kroah-Hartman
2019-10-01 11:38 ` [RFC PATCH 11/22] thunderbolt: Convert DP adapter register names to follow the USB4 spec Mika Westerberg
2019-10-01 12:42 ` Greg Kroah-Hartman
2019-10-01 11:38 ` [RFC PATCH 12/22] thunderbolt: Add Display Port CM handshake for Titan Ridge devices Mika Westerberg
2019-10-01 12:44 ` Greg Kroah-Hartman
2019-10-01 13:30 ` Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 13/22] thunderbolt: Add Display Port adapter pairing and resource management Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 14/22] thunderbolt: Add bandwidth management for Display Port tunnels Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 15/22] thunderbolt: Make tb_find_port() available to other files Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 16/22] thunderbolt: Call tb_eeprom_get_drom_offset() from tb_eeprom_read_n() Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 17/22] thunderbolt: Add initial support for USB4 Mika Westerberg
2019-10-01 12:47 ` Greg Kroah-Hartman
2019-10-01 13:09 ` Mika Westerberg
2019-10-01 14:53 ` Greg Kroah-Hartman
2019-10-01 14:59 ` Mario.Limonciello
2019-10-01 15:13 ` Mika Westerberg
2019-10-01 15:22 ` Greg KH
2019-10-01 15:32 ` Mika Westerberg
2019-10-01 15:07 ` Mika Westerberg
2019-10-01 15:19 ` Greg Kroah-Hartman
2019-10-01 15:26 ` Mika Westerberg
2019-10-01 16:27 ` Oliver Neukum
2019-10-02 8:30 ` Mika Westerberg
2019-10-02 8:39 ` Greg Kroah-Hartman
2019-10-02 8:49 ` Mika Westerberg
2019-10-01 17:05 ` Mario.Limonciello
2019-10-01 18:14 ` Mario.Limonciello
2019-10-02 8:39 ` Mika Westerberg
2019-10-02 15:09 ` Mario.Limonciello
2019-10-02 15:36 ` Yehezkel Bernat
2019-10-02 16:00 ` Mario.Limonciello
2019-10-03 8:00 ` Mika Westerberg
2019-10-03 14:41 ` Mario.Limonciello
2019-10-04 7:54 ` Mika Westerberg
2019-10-04 8:07 ` Yehezkel Bernat
2019-10-04 8:19 ` Mika Westerberg
2019-10-04 11:19 ` Yehezkel Bernat
2019-10-04 14:05 ` Mario.Limonciello
2019-10-04 14:19 ` Mario.Limonciello
2019-10-04 14:21 ` Mika Westerberg
[not found] ` <1570201357.2.0@kellner.me>
2019-10-04 15:16 ` Mika Westerberg
2019-10-04 15:22 ` Christian Kellner
2019-10-02 8:34 ` Mika Westerberg
2019-10-02 15:04 ` Mario.Limonciello
2019-10-01 11:38 ` [RFC PATCH 18/22] thunderbolt: Make tb_switch_find_cap() available to other files Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 19/22] thunderbolt: Add support for Time Management Unit Mika Westerberg
2019-10-02 16:52 ` Mani, Rajmohan
2019-10-03 8:01 ` Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 20/22] thunderbolt: Add support for USB tunnels Mika Westerberg
2019-10-03 8:42 ` Oliver Neukum
2019-10-03 8:52 ` Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 21/22] thunderbolt: Update documentation with the USB4 information Mika Westerberg
2019-10-01 14:17 ` Mario.Limonciello
2019-10-01 14:21 ` Mika Westerberg
2019-10-01 11:38 ` [RFC PATCH 22/22] thunderbolt: Do not start firmware unless asked by the user Mika Westerberg
2019-10-01 14:43 ` Mario.Limonciello
2019-10-01 14:58 ` Mika Westerberg
2019-10-01 16:53 ` Mario.Limonciello
2019-10-02 8:48 ` Mika Westerberg
2019-10-01 12:49 ` [RFC PATCH 00/22] thunderbolt: Add support for USB4 Greg Kroah-Hartman
2019-10-01 13:42 ` Mika Westerberg
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