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| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-09-15 16:57:24 -0700 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-09-17 14:48:23 -0700 |
| commit | 1a133e0c9dabda23e6693cabfdc1d5106dca5fc2 (patch) | |
| tree | 04e0f95f130b65204c963a8f50c1c76d9cc3f04a /include/acpi/button.h | |
| parent | d660467c3ff2a0b7413e1b7a51452b34ffb49e5f (diff) | |
| download | lwn-1a133e0c9dabda23e6693cabfdc1d5106dca5fc2.tar.gz lwn-1a133e0c9dabda23e6693cabfdc1d5106dca5fc2.zip | |
ACPI: make ACPI button funcs no-ops if not built in
Yakui pointed out that we don't properly no-op the ACPI button routines
if the button driver isn't built in. This will cause problems if ACPI
is disabled, so provide stub functions in that case.
Reported-by: ykzhao <yakui.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'include/acpi/button.h')
| -rw-r--r-- | include/acpi/button.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/acpi/button.h b/include/acpi/button.h index bb643a79d651..97eea0e4c016 100644 --- a/include/acpi/button.h +++ b/include/acpi/button.h @@ -3,8 +3,23 @@ #include <linux/notifier.h> +#if defined(CONFIG_ACPI_BUTTON) || defined(CONFIG_ACPI_BUTTON_MODULE) extern int acpi_lid_notifier_register(struct notifier_block *nb); extern int acpi_lid_notifier_unregister(struct notifier_block *nb); extern int acpi_lid_open(void); +#else +static inline int acpi_lid_notifier_register(struct notifier_block *nb) +{ + return 0; +} +static inline int acpi_lid_notifier_unregister(struct notifier_block *nb) +{ + return 0; +} +static inline int acpi_lid_open(void) +{ + return 1; +} +#endif /* defined(CONFIG_ACPI_BUTTON) || defined(CONFIG_ACPI_BUTTON_MODULE) */ #endif /* ACPI_BUTTON_H */ |