From f62a4ffd43c8739aa4b0358710ace0a4e91d2071 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Mon, 23 Mar 2015 14:01:37 -0400 Subject: [PATCH] x86/wmi: delete unused wmi_data_lock mutex causing gcc warning MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit In commit bff431e49ff531a343fbb2b4426e313000844f32 ("ACPI: WMI: Add ACPI-WMI mapping driver") this mutex was added, but the rest of the final commit never actually made use of it, resulting in: In file included from include/linux/mutex.h:29:0, from include/linux/kernfs.h:13, from include/linux/sysfs.h:15, from include/linux/kobject.h:21, from include/linux/device.h:17, from drivers/platform/x86/wmi.c:35: drivers/platform/x86/wmi.c:48:21: warning: ‘wmi_data_lock’ defined but not used [-Wunused-variable] static DEFINE_MUTEX(wmi_data_lock); ^ A git grep shows no other instances/references to the wmi_data_lock. Delete it, assuming that the mutex addition was just a leftover from an earlier work in progress version of the change, since the original dates from 2008. Signed-off-by: Paul Gortmaker Signed-off-by: Darren Hart --- drivers/platform/x86/wmi.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index 737e56d46f61..26a0bd893b86 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -45,7 +45,6 @@ MODULE_LICENSE("GPL"); #define ACPI_WMI_CLASS "wmi" -static DEFINE_MUTEX(wmi_data_lock); static LIST_HEAD(wmi_block_list); struct guid_block { -- 2.20.1