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centosplus kernel patch [bug#15707]
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centos-linux-3.10-asus-wmi-bug15707.patch
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From 0fe57261214bcc866ef0233444a395b5fdfb5ac3 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali.rohar@gmail.com>
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Date: Sat, 12 Aug 2017 09:44:16 +0200
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Subject: platform/x86: asus-wmi: Evaluate wmi method with instance number 0x0
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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According to available DSDT dump from Asus machine, there is the only one
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instance of the WMI GUID 97845ED0-4E6D-11DE-8A39-0800200C9A66 and so it is
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0x0. Moreover corresponding method WMBC does not check Arg0 (instance
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number) at all.
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DSDT dump is available at:
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https://lwn.net/Articles/391249/
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_WDG dump:
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0xD0, 0x5E, 0x84, 0x97, 0x6D, 0x4E, 0xDE, 0x11, 0x8A, 0x39, 0x08,
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0x00, 0x20, 0x0C, 0x9A, 0x66,
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0x42, 0x43, // Object ID "BC" = method "WMBC"
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0x01, // Instance count
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0x02, // Flags
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Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
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Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Submitted-by: Pablo Greco <pablo@fliagreco.com.ar>
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Applied-by: Akemi Yagi <toracat@elrepo.org>
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---
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drivers/platform/x86/asus-wmi.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
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index 709e3a67391a..48e1541dc8d4 100644
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--- a/drivers/platform/x86/asus-wmi.c
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+++ b/drivers/platform/x86/asus-wmi.c
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@@ -271,7 +271,7 @@ static int asus_wmi_evaluate_method(u32
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union acpi_object *obj;
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u32 tmp;
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- status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 1, method_id,
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+ status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
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&input, &output);
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if (ACPI_FAILURE(status))
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@@ -1669,7 +1669,7 @@ static int show_call(struct seq_file *m,
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return -EPERM;
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status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
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- 1, asus->debug.method_id,
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+ 0, asus->debug.method_id,
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&input, &output);
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if (ACPI_FAILURE(status))
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--
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cgit 1.2-0.3.lf.el7
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