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