linux-kernel - [PATCH v6] driver core: platform: set numa_node before platform_device

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Message-Id: <20230918134527.252-1-guojinhui.liam@bytedance.com>
Date:   Mon, 18 Sep 2023 21:45:27 +0800
From:   Jinhui Guo <guojinhui.liam@...edance.com>
To:     rafael@...nel.org, lenb@...nel.org, gregkh@...uxfoundation.org
Cc:     lizefan.x@...edance.com, linux-acpi@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Jinhui Guo <guojinhui.liam@...edance.com>,
        stable@...r.kernel.org, kernel test robot <lkp@...el.com>
Subject: [PATCH v6] driver core: platform: set numa_node before platform_device_add()

Setting the devices' numa_node needs to be done in
platform_device_register_full(), because that's where the
platform device object is allocated.

Fixes: 4a60406d3592 ("driver core: platform: expose numa_node to users in sysfs")
Cc: stable@...r.kernel.org
Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202309122309.mbxAnAIe-lkp@intel.com/
Reviewed-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Reviewed-by: Rafael J. Wysocki <rafael@...nel.org>
Signed-off-by: Jinhui Guo <guojinhui.liam@...edance.com>
---
V5 -> V6:
  1. Update subject to correct function name platform_device_add().
  2. Provide a more clear and accurate description of the changes
     made in commit (suggested by Rafael J. Wysocki).
  3. Add reviewer name.

V4 -> V5:
  Add Cc: stable line and changes from the previous submited patches.

V3 -> V4:
  Refactor code to be an ACPI function call.

V2 -> V3:
  Fix Signed-off name.

V1 -> V2:
  Fix compile error without enabling CONFIG_ACPI.
---

 drivers/acpi/acpi_platform.c | 4 +---
 drivers/base/platform.c      | 1 +
 include/linux/acpi.h         | 5 +++++
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 48d15dd785f6..adcbfbdc343f 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -178,11 +178,9 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev,
 	if (IS_ERR(pdev))
 		dev_err(&adev->dev, "platform device creation failed: %ld\n",
 			PTR_ERR(pdev));
-	else {
-		set_dev_node(&pdev->dev, acpi_get_node(adev->handle));
+	else
 		dev_dbg(&adev->dev, "created platform device %s\n",
 			dev_name(&pdev->dev));
-	}
 
 	kfree(resources);
 
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 76bfcba25003..35c891075d95 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -841,6 +841,7 @@ struct platform_device *platform_device_register_full(
 			goto err;
 	}
 
+	set_dev_node(&pdev->dev, ACPI_NODE_GET(ACPI_COMPANION(&pdev->dev)));
 	ret = platform_device_add(pdev);
 	if (ret) {
 err:
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index a73246c3c35e..6a349d53f19e 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -477,6 +477,10 @@ static inline int acpi_get_node(acpi_handle handle)
 	return 0;
 }
 #endif
+
+#define ACPI_NODE_GET(adev) ((adev) && (adev)->handle ? \
+	acpi_get_node((adev)->handle) : NUMA_NO_NODE)
+
 extern int pnpacpi_disabled;
 
 #define PXM_INVAL	(-1)
@@ -770,6 +774,7 @@ const char *acpi_get_subsystem_id(acpi_handle handle);
 #define ACPI_COMPANION_SET(dev, adev)	do { } while (0)
 #define ACPI_HANDLE(dev)		(NULL)
 #define ACPI_HANDLE_FWNODE(fwnode)	(NULL)
+#define ACPI_NODE_GET(adev)		NUMA_NO_NODE
 
 #include <acpi/acpi_numa.h>
 
-- 
2.20.1