linux-kernel - [PATCH 5/5] ACPI: Add configuration item to configure ACPICA error logs out

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Message-Id: <cf654fead3c862ed1d9991a78d08d33f63f474aa.1467717305.git.lv.zheng@intel.com>
Date:	Tue,  5 Jul 2016 19:18:28 +0800
From:	Lv Zheng <lv.zheng@...el.com>
To:	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <len.brown@...el.com>
Cc:	Lv Zheng <lv.zheng@...el.com>, Lv Zheng <zetalog@...il.com>,
	<linux-kernel@...r.kernel.org>, linux-acpi@...r.kernel.org
Subject: [PATCH 5/5] ACPI: Add configuration item to configure ACPICA error logs out

Sometimes, we need to disable ACPICA error logs to leave only ACPICA
debug logs enabled for debugging purpose. This is useful when ACPICA error
logs become a flood.

Reference: https://bugzilla.kernel.org/show_bug.cgi?id=114201
Signed-off-by: Lv Zheng <lv.zheng@...el.com>
---
 drivers/acpi/Kconfig            |    7 +++++++
 include/acpi/platform/aclinux.h |    4 ++++
 2 files changed, 11 insertions(+)

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 04af18f..939d235 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -324,6 +324,13 @@ config ACPI_TABLE_UPGRADE
 	  initrd, therefore it's safe to say Y.
 	  See Documentation/acpi/initrd_table_override.txt for details
 
+config ACPI_NO_ERROR_MESSAGES
+	bool "Disable error messages"
+	default n
+	help
+	  The ACPI subsystem can produce error messages. Saying Y disables
+	  this output.
+
 config ACPI_DEBUG
 	bool "Debug Statements"
 	default n
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 93b61b1..ed27b52 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -77,6 +77,10 @@
 #define ACPI_MUTEX_DEBUG
 #endif
 
+#ifdef CONFIG_ACPI_NO_ERROR_MESSAGES
+#define ACPI_NO_ERROR_MESSAGES
+#endif
+
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/ctype.h>
-- 
1.7.10