From: Robert Richter <rrichter@amd.com>
To: Alison Schofield <alison.schofield@intel.com>,
Vishal Verma <vishal.l.verma@intel.com>,
Ira Weiny <ira.weiny@intel.com>,
Ben Widawsky <bwidawsk@kernel.org>,
Dan Williams <dan.j.williams@intel.com>
Cc: <linux-cxl@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Len Brown <lenb@kernel.org>, Robert Richter <rrichter@amd.com>
Subject: [PATCH 03/15] cxl: Unify debug messages when calling devm_cxl_add_port()
Date: Wed, 31 Aug 2022 10:15:51 +0200 [thread overview]
Message-ID: <20220831081603.3415-4-rrichter@amd.com> (raw)
In-Reply-To: <20220831081603.3415-1-rrichter@amd.com>
CXL ports are added in a couple of code paths using
devm_cxl_add_port(). Debug messages are individually generated, but
are incomplete and inconsistent. Change this by moving its generation
to devm_cxl_add_port(). This unifies the messages and reduces code
duplication. Also, generate messages on failure.
Signed-off-by: Robert Richter <rrichter@amd.com>
---
drivers/cxl/acpi.c | 2 --
drivers/cxl/core/port.c | 39 ++++++++++++++++++++++++++++-----------
2 files changed, 28 insertions(+), 13 deletions(-)
diff --git a/drivers/cxl/acpi.c b/drivers/cxl/acpi.c
index fb649683dd3a..767a91f44221 100644
--- a/drivers/cxl/acpi.c
+++ b/drivers/cxl/acpi.c
@@ -220,7 +220,6 @@ static int add_host_bridge_uport(struct device *match, void *arg)
port = devm_cxl_add_port(host, match, dport->component_reg_phys, dport);
if (IS_ERR(port))
return PTR_ERR(port);
- dev_dbg(host, "%s: add: %s\n", dev_name(match), dev_name(&port->dev));
return 0;
}
@@ -466,7 +465,6 @@ static int cxl_acpi_probe(struct platform_device *pdev)
root_port = devm_cxl_add_port(host, host, CXL_RESOURCE_NONE, NULL);
if (IS_ERR(root_port))
return PTR_ERR(root_port);
- dev_dbg(host, "add: %s\n", dev_name(&root_port->dev));
rc = bus_for_each_dev(adev->dev.bus, NULL, root_port,
add_host_bridge_dport);
diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c
index bffde862de0b..8604cda88787 100644
--- a/drivers/cxl/core/port.c
+++ b/drivers/cxl/core/port.c
@@ -666,13 +666,17 @@ struct cxl_port *devm_cxl_add_port(struct device *host, struct device *uport,
resource_size_t component_reg_phys,
struct cxl_dport *parent_dport)
{
- struct cxl_port *port;
+ struct cxl_port *port, *parent_port;
struct device *dev;
int rc;
+ parent_port = parent_dport ? parent_dport->port : NULL;
+
port = cxl_port_alloc(uport, component_reg_phys, parent_dport);
- if (IS_ERR(port))
- return port;
+ if (IS_ERR(port)) {
+ rc = PTR_ERR(port);
+ goto err_out;
+ }
dev = &port->dev;
if (is_cxl_memdev(uport))
@@ -682,24 +686,39 @@ struct cxl_port *devm_cxl_add_port(struct device *host, struct device *uport,
else
rc = dev_set_name(dev, "root%d", port->id);
if (rc)
- goto err;
+ goto err_put;
rc = device_add(dev);
if (rc)
- goto err;
+ goto err_put;
rc = devm_add_action_or_reset(host, unregister_port, port);
if (rc)
- return ERR_PTR(rc);
+ goto err_out;
rc = devm_cxl_link_uport(host, port);
if (rc)
- return ERR_PTR(rc);
+ goto err_out;
- return port;
+ dev_dbg(host, "added %s as%s port of device %s%s%s\n",
+ dev_name(&port->dev),
+ parent_port ? "" : " root",
+ dev_name(uport),
+ parent_port ? " to parent port " : "",
+ parent_port ? dev_name(&parent_port->dev) : "");
-err:
+ return port;
+err_put:
put_device(dev);
+err_out:
+ dev_dbg(host, "failed to add %s as%s port of device %s%s%s: %d\n",
+ dev_name(&port->dev),
+ parent_port ? "" : " root",
+ dev_name(uport),
+ parent_port ? " to parent port " : "",
+ parent_port ? dev_name(&parent_port->dev) : "",
+ rc);
+
return ERR_PTR(rc);
}
EXPORT_SYMBOL_NS_GPL(devm_cxl_add_port, CXL);
@@ -1140,8 +1159,6 @@ int devm_cxl_add_endpoint(struct cxl_memdev *cxlmd,
if (IS_ERR(endpoint))
return PTR_ERR(endpoint);
- dev_dbg(&cxlmd->dev, "add: %s\n", dev_name(&endpoint->dev));
-
rc = cxl_endpoint_autoremove(cxlmd, endpoint);
if (rc)
return rc;
--
2.30.2
next prev parent reply other threads:[~2022-08-31 8:17 UTC|newest]
Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-31 8:15 [PATCH 00/15] cxl: Add support for Restricted CXL hosts (RCD mode) Robert Richter
2022-08-31 8:15 ` [PATCH 01/15] cxl/core: Remove duplicate declaration of devm_cxl_iomap_block() Robert Richter
2022-08-31 8:54 ` Jonathan Cameron
2022-09-01 5:21 ` Robert Richter
2022-08-31 9:39 ` kernel test robot
2022-09-07 16:11 ` [PATCH 1/15] " Davidlohr Bueso
2022-09-09 10:38 ` Robert Richter
2022-09-08 5:44 ` [PATCH 01/15] " Dan Williams
2022-09-08 14:51 ` Robert Richter
2022-09-08 19:47 ` Dan Williams
2022-08-31 8:15 ` [PATCH 02/15] cxl/core: Check physical address before mapping it in devm_cxl_iomap_block() Robert Richter
2022-08-31 8:56 ` Jonathan Cameron
2022-09-01 5:31 ` Robert Richter
2022-09-08 5:48 ` Dan Williams
2022-09-09 12:19 ` Robert Richter
2022-09-16 18:04 ` Dan Williams
2022-09-28 10:28 ` Robert Richter
2022-09-30 19:07 ` Dan Williams
2022-08-31 8:15 ` Robert Richter [this message]
2022-08-31 9:59 ` [PATCH 03/15] cxl: Unify debug messages when calling devm_cxl_add_port() Jonathan Cameron
2022-09-01 5:36 ` Robert Richter
2022-09-06 7:30 ` Robert Richter
2022-09-06 8:52 ` Jonathan Cameron
2022-09-07 16:21 ` [PATCH 3/15] " Davidlohr Bueso
2022-09-08 5:53 ` [PATCH 03/15] " Dan Williams
2022-09-28 10:32 ` Robert Richter
2022-08-31 8:15 ` [PATCH 04/15] cxl: Unify debug messages when calling devm_cxl_add_dport() Robert Richter
2022-09-07 16:29 ` [PATCH 4/15] " Davidlohr Bueso
2022-09-08 5:55 ` [PATCH 04/15] " Dan Williams
2022-08-31 8:15 ` [PATCH 05/15] cxl/acpi: Add probe function to detect restricted CXL hosts in RCD mode Robert Richter
2022-08-31 10:08 ` Jonathan Cameron
2022-09-01 6:01 ` Robert Richter
2022-09-01 10:10 ` Jonathan Cameron
2022-09-06 7:19 ` Robert Richter
2022-09-06 8:53 ` Jonathan Cameron
2022-09-07 18:22 ` Bjorn Helgaas
2022-09-08 6:00 ` Dan Williams
2022-09-08 6:11 ` Dan Williams
2022-08-31 8:15 ` [PATCH 06/15] PCI/ACPI: Link host bridge to its ACPI fw node Robert Richter
2022-08-31 10:11 ` Jonathan Cameron
2022-09-07 18:37 ` Bjorn Helgaas
2022-09-07 20:15 ` Rafael J. Wysocki
2022-09-08 6:05 ` Dan Williams
2022-09-08 13:06 ` Rafael J. Wysocki
2022-09-08 19:45 ` Dan Williams
2022-09-09 10:20 ` Robert Richter
2022-09-14 22:11 ` Bjorn Helgaas
2022-09-16 23:16 ` Dan Williams
2022-09-08 13:04 ` Rafael J. Wysocki
2022-08-31 8:15 ` [PATCH 07/15] cxl/acpi: Check RCH's PCIe Host Bridge ACPI ID Robert Richter
2022-08-31 10:20 ` Jonathan Cameron
2022-09-01 6:16 ` Robert Richter
2022-09-01 10:14 ` Jonathan Cameron
2022-09-08 6:11 ` Dan Williams
2022-08-31 8:15 ` [PATCH 08/15] cxl/acpi: Check RCH's CXL DVSEC capabilities Robert Richter
2022-08-31 10:52 ` Jonathan Cameron
2022-08-31 11:12 ` Jonathan Cameron
2022-09-01 6:38 ` Robert Richter
2022-09-01 10:37 ` Jonathan Cameron
2022-09-06 10:20 ` Robert Richter
2022-09-01 6:30 ` Robert Richter
2022-09-01 10:23 ` Jonathan Cameron
2022-09-08 6:18 ` Dan Williams
2022-08-31 8:15 ` [PATCH 09/15] cxl/acpi: Determine PCI host bridge's ACPI UID Robert Richter
2022-08-31 11:00 ` Jonathan Cameron
2022-09-01 6:53 ` Robert Richter
2022-09-01 10:41 ` Jonathan Cameron
2022-09-08 6:18 ` Dan Williams
2022-09-08 20:47 ` Jonathan Zhang (Infra)
2022-09-08 21:10 ` Dan Williams
2022-09-08 21:35 ` Jonathan Zhang (Infra)
2022-09-08 22:31 ` Dan Williams
2022-09-08 22:41 ` Jonathan Zhang (Infra)
2022-08-31 8:15 ` [PATCH 10/15] cxl/acpi: Extract the RCH's RCRB base address from CEDT Robert Richter
2022-08-31 11:09 ` Jonathan Cameron
2022-09-01 7:04 ` Robert Richter
2022-08-31 8:15 ` [PATCH 11/15] cxl/acpi: Extract the host's component register base address from RCRB Robert Richter
2022-08-31 11:56 ` Jonathan Cameron
2022-09-01 7:38 ` Robert Richter
2022-09-01 11:00 ` Jonathan Cameron
2022-09-06 11:32 ` Robert Richter
2022-09-08 20:59 ` Jonathan Zhang (Infra)
2022-08-31 8:16 ` [PATCH 12/15] cxl/acpi: Skip devm_cxl_port_enumerate_dports() when in RCD mode Robert Richter
2022-08-31 11:58 ` Jonathan Cameron
2022-09-01 7:40 ` Robert Richter
2022-08-31 8:16 ` [PATCH 13/15] cxl/acpi: Rework devm_cxl_enumerate_ports() to support " Robert Richter
2022-08-31 12:11 ` Jonathan Cameron
2022-09-01 7:50 ` Robert Richter
2022-08-31 8:16 ` [PATCH 14/15] cxl/acpi: Enumerate ports in RCD mode to enable RCHs and RCDs Robert Richter
2022-08-31 12:16 ` Jonathan Cameron
2022-09-01 7:54 ` Robert Richter
2022-08-31 8:16 ` [PATCH 15/15] cxl/acpi: Specify module load order dependency for the cxl_acpi module Robert Richter
2022-09-16 18:12 ` Dan Williams
2022-08-31 12:23 ` [PATCH 00/15] cxl: Add support for Restricted CXL hosts (RCD mode) Jonathan Cameron
2022-09-01 8:19 ` Robert Richter
2022-09-08 6:41 ` Dan Williams
2022-09-08 5:43 ` Dan Williams
2022-09-08 18:52 ` Jonathan Zhang (Infra)
2022-09-08 19:51 ` Dan Williams
2022-09-08 20:36 ` Jonathan Zhang (Infra)
2022-09-08 21:02 ` Dan Williams
2022-09-16 18:16 ` Dan Williams
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