linux-kernel - [PATCH 1/2] acpi: Fix the mapping handle in case of declaring processors using the Device operator

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Date:   Thu, 16 Feb 2017 18:38:11 +0800
From:   Dou Liyang <douly.fnst@...fujitsu.com>
To:     <rjw@...ysocki.net>, <rafael@...nel.org>, <lenb@...nel.org>
CC:     <linux-acpi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Dou Liyang <douly.fnst@...fujitsu.com>
Subject: [PATCH 1/2] acpi: Fix the mapping handle in case of declaring processors using the Device operator

In ACPI spec, we can declare processors using both Processor and
Device operator. But now, we just handle the mapping of processors
which are declared by Processor operator.

It misses the processors declared by Device operator.

The patch adds this case of the Device operator.

Signed-off-by: Dou Liyang <douly.fnst@...fujitsu.com>
---
 drivers/acpi/processor_core.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 611a558..1aab5b0 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -344,8 +344,10 @@ void __init acpi_set_processor_mapping(void)
 {
 	/* Set persistent cpu <-> node mapping for all processors. */
 	acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
-			    ACPI_UINT32_MAX, set_processor_node_mapping,
-			    NULL, NULL, NULL);
+				ACPI_UINT32_MAX, set_processor_node_mapping,
+				NULL, NULL, NULL);
+	acpi_get_devices(ACPI_PROCESSOR_DEVICE_HID, set_processor_node_mapping,
+				NULL, NULL);
 }
 #else
 void __init acpi_set_processor_mapping(void) {}
-- 
2.5.5