We get 1 warning when building kernel with W=1: drivers/mfd/ab8500-debugfs.c:1587:28: warning: no previous prototype for 'suspend_test_wake_cause_interrupt_is_mine' [-Wmissing-prototypes]
In fact, this function need be declared in a header files. So this patch adds function declaration in include/linux/mfd/abx500/ab8500.h. Signed-off-by: Baoyou Xie <baoyou....@linaro.org> --- include/linux/mfd/abx500/ab8500.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h index 9475fee..a496120 100644 --- a/include/linux/mfd/abx500/ab8500.h +++ b/include/linux/mfd/abx500/ab8500.h @@ -508,6 +508,7 @@ void ab8500_override_turn_on_stat(u8 mask, u8 set); extern int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size); void ab8500_dump_all_banks(struct device *dev); void ab8500_debug_register_interrupt(int line); +bool suspend_test_wake_cause_interrupt_is_mine(u32 my_int); #else static inline void ab8500_dump_all_banks(struct device *dev) {} static inline void ab8500_debug_register_interrupt(int line) {} -- 2.7.4