ACPI / osi: Cleanup OSI handling code to use bool

This patch changes "int/unsigned int" to "bool" to simplify the code.

Tested-by: Lukas Wunner <lukas@wunner.de>
Tested-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

3 files changed, 17 insertions, 27 deletions

diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index 45390a953fb2..d7d498abc5d3 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -135,12 +135,12 @@ int __init acpi_blacklisted(void)
 #ifdef CONFIG_DMI
 static int __init dmi_enable_osi_darwin(const struct dmi_system_id *d)
 {
-        acpi_dmi_osi_darwin(1, d);      /* enable */
+        acpi_dmi_osi_darwin(true, d);   /* enable */
         return 0;
 }
 static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
 {
-        acpi_dmi_osi_linux(1, d);       /* enable */
+        acpi_dmi_osi_linux(true, d);    /* enable */
         return 0;
 }
 static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 1b84e4635ae0..e30f3251fd14 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1785,11 +1785,9 @@ void __init acpi_osi_setup(char *str)
         }
 }
 
-static void __init set_osi_darwin(unsigned int enable)
+static void __init set_osi_darwin(bool enable)
 {
-        if (osi_config.darwin_enable != enable)
-                osi_config.darwin_enable = enable;
-
+        osi_config.darwin_enable = !!enable;
         if (enable) {
                 acpi_osi_setup("!");
                 acpi_osi_setup("Darwin");
@@ -1799,7 +1797,7 @@ static void __init set_osi_darwin(unsigned int enable)
         }
 }
 
-static void __init acpi_cmdline_osi_darwin(unsigned int enable)
+static void __init acpi_cmdline_osi_darwin(bool enable)
 {
         /* cmdline set the default and override DMI */
         osi_config.darwin_cmdline = 1;
@@ -1809,13 +1807,10 @@ static void __init acpi_cmdline_osi_darwin(unsigned int enable)
         return;
 }
 
-void __init acpi_dmi_osi_darwin(int enable, const struct dmi_system_id *d)
+void __init acpi_dmi_osi_darwin(bool enable, const struct dmi_system_id *d)
 {
         printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
 
-        if (enable == -1)
-                return;
-
         /* DMI knows that this box asks OSI(Darwin) */
         osi_config.darwin_dmi = 1;
         set_osi_darwin(enable);
@@ -1823,12 +1818,10 @@ void __init acpi_dmi_osi_darwin(int enable, const struct dmi_system_id *d)
         return;
 }
 
-static void __init set_osi_linux(unsigned int enable)
+static void __init set_osi_linux(bool enable)
 {
-        if (osi_config.linux_enable != enable)
-                osi_config.linux_enable = enable;
-
-        if (osi_config.linux_enable)
+        osi_config.linux_enable = !!enable;
+        if (enable)
                 acpi_osi_setup("Linux");
         else
                 acpi_osi_setup("!Linux");
@@ -1836,7 +1829,7 @@ static void __init set_osi_linux(unsigned int enable)
         return;
 }
 
-static void __init acpi_cmdline_osi_linux(unsigned int enable)
+static void __init acpi_cmdline_osi_linux(bool enable)
 {
         /* cmdline set the default and override DMI */
         osi_config.linux_cmdline = 1;
@@ -1846,13 +1839,10 @@ static void __init acpi_cmdline_osi_linux(unsigned int enable)
         return;
 }
 
-void __init acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d)
+void __init acpi_dmi_osi_linux(bool enable, const struct dmi_system_id *d)
 {
         printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
 
-        if (enable == -1)
-                return;
-
         /* DMI knows that this box asks OSI(Linux) */
         osi_config.linux_dmi = 1;
         set_osi_linux(enable);
@@ -1907,13 +1897,13 @@ static void __init acpi_osi_setup_late(void)
 static int __init osi_setup(char *str)
 {
         if (str && !strcmp("Linux", str))
-                acpi_cmdline_osi_linux(1);
+                acpi_cmdline_osi_linux(true);
         else if (str && !strcmp("!Linux", str))
-                acpi_cmdline_osi_linux(0);
+                acpi_cmdline_osi_linux(false);
         else if (str && !strcmp("Darwin", str))
-                acpi_cmdline_osi_darwin(1);
+                acpi_cmdline_osi_darwin(true);
         else if (str && !strcmp("!Darwin", str))
-                acpi_cmdline_osi_darwin(0);
+                acpi_cmdline_osi_darwin(false);
         else
                 acpi_osi_setup(str);
 
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 6c7176efd543..0ccfeba71fcf 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -359,8 +359,8 @@ extern bool wmi_has_guid(const char *guid);
 extern char acpi_video_backlight_string[];
 extern long acpi_is_video_device(acpi_handle handle);
 extern int acpi_blacklisted(void);
-extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
-extern void acpi_dmi_osi_darwin(int enable, const struct dmi_system_id *d);
+extern void acpi_dmi_osi_linux(bool enable, const struct dmi_system_id *d);
+extern void acpi_dmi_osi_darwin(bool enable, const struct dmi_system_id *d);
 extern void acpi_osi_setup(char *str);
 extern bool acpi_osi_is_win8(void);