diff options
| author | Lv Zheng <lv.zheng@intel.com> | 2016-05-03 16:48:27 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-05-05 00:13:51 +0200 |
| commit | dbee890bf69ad62c021e299e24881fdcd1f2c481 (patch) | |
| tree | 9071fea266e1cfb113afb54000af52a817bb7a49 /drivers/acpi | |
| parent | 30c9bb0d7603e7b3f4d6a0ea231e1cddae020c32 (diff) | |
ACPI / osi: Cleanup _OSI("Linux") related code before introducing new support
This patch cleans up OSI code in osl.c to make osi_linux work for OSI
strings other than "Linux", so it can be re-used for other purposes.
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>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/osl.c | 42 |
1 files changed, 22 insertions, 20 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index f03677588b9d..9f59dd1a0af7 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -131,12 +131,12 @@ static void __init acpi_osi_setup_late(void); * or boot with "acpi_osi=Linux" */ -static struct osi_linux { - unsigned int enable:1; - unsigned int dmi:1; - unsigned int cmdline:1; +static struct acpi_osi_config { + unsigned int linux_enable:1; + unsigned int linux_dmi:1; + unsigned int linux_cmdline:1; u8 default_disabling; -} osi_linux = {0, 0, 0, 0}; +} osi_config = {0, 0, 0, 0}; static u32 acpi_osi_handler(acpi_string interface, u32 supported) { @@ -144,9 +144,9 @@ static u32 acpi_osi_handler(acpi_string interface, u32 supported) printk_once(KERN_NOTICE FW_BUG PREFIX "BIOS _OSI(Linux) query %s%s\n", - osi_linux.enable ? "honored" : "ignored", - osi_linux.cmdline ? " via cmdline" : - osi_linux.dmi ? " via DMI" : ""); + osi_config.linux_enable ? "honored" : "ignored", + osi_config.linux_cmdline ? " via cmdline" : + osi_config.linux_dmi ? " via DMI" : ""); } if (!strcmp("Darwin", interface)) { @@ -1752,12 +1752,12 @@ void __init acpi_osi_setup(char *str) str++; if (*str == '\0') { /* Do not override acpi_osi=!* */ - if (!osi_linux.default_disabling) - osi_linux.default_disabling = + if (!osi_config.default_disabling) + osi_config.default_disabling = ACPI_DISABLE_ALL_VENDOR_STRINGS; return; } else if (*str == '*') { - osi_linux.default_disabling = ACPI_DISABLE_ALL_STRINGS; + osi_config.default_disabling = ACPI_DISABLE_ALL_STRINGS; for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) { osi = &osi_setup_entries[i]; osi->enable = false; @@ -1782,10 +1782,10 @@ void __init acpi_osi_setup(char *str) static void __init set_osi_linux(unsigned int enable) { - if (osi_linux.enable != enable) - osi_linux.enable = enable; + if (osi_config.linux_enable != enable) + osi_config.linux_enable = enable; - if (osi_linux.enable) + if (osi_config.linux_enable) acpi_osi_setup("Linux"); else acpi_osi_setup("!Linux"); @@ -1795,8 +1795,9 @@ static void __init set_osi_linux(unsigned int enable) static void __init acpi_cmdline_osi_linux(unsigned int enable) { - osi_linux.cmdline = 1; /* cmdline set the default and override DMI */ - osi_linux.dmi = 0; + /* cmdline set the default and override DMI */ + osi_config.linux_cmdline = 1; + osi_config.linux_dmi = 0; set_osi_linux(enable); return; @@ -1809,7 +1810,8 @@ void __init acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d) if (enable == -1) return; - osi_linux.dmi = 1; /* DMI knows that this box asks OSI(Linux) */ + /* DMI knows that this box asks OSI(Linux) */ + osi_config.linux_dmi = 1; set_osi_linux(enable); return; @@ -1829,12 +1831,12 @@ static void __init acpi_osi_setup_late(void) int i; acpi_status status; - if (osi_linux.default_disabling) { - status = acpi_update_interfaces(osi_linux.default_disabling); + if (osi_config.default_disabling) { + status = acpi_update_interfaces(osi_config.default_disabling); if (ACPI_SUCCESS(status)) printk(KERN_INFO PREFIX "Disabled all _OSI OS vendors%s\n", - osi_linux.default_disabling == + osi_config.default_disabling == ACPI_DISABLE_ALL_STRINGS ? " and feature groups" : ""); } |