When GPIOLIB disabled, __gpio_get_value() and __gpio_set_value() will
not implement, so need remove them, or compiling fails.
e.g. (allmodconfig for h8300)
CC arch/h8300/kernel/h8300_ksyms.o
In file included from arch/h8300/include/generated/asm/gpio.h:1:0,
from arch/h8300/kernel/h8300_ksyms.c:17:
include/asm-generic/gpio.h: In function 'gpio_get_value_cansleep':
include/asm-generic/gpio.h:270:2: error: implicit declaration of function '__gpio_get_value' [-Werror=implicit-function-declaration]
return __gpio_get_value(gpio);
^
For __gpio_get_value(), according to its implementation, it is enough
to use "return 0" instead of, and for __gpio_set_value(), just remove
directly.
Signed-off-by: Chen Gang <gang.chen@xxxxxxxxxxx>
---
include/asm-generic/gpio.h | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index bde6469..10a2853 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -267,13 +267,12 @@ static inline int gpio_cansleep(unsigned gpio)
static inline int gpio_get_value_cansleep(unsigned gpio)
{
might_sleep();
- return __gpio_get_value(gpio);
+ return 0;
}
static inline void gpio_set_value_cansleep(unsigned gpio, int value)
{
might_sleep();
- __gpio_set_value(gpio, value);
}
#endif /* !CONFIG_GPIOLIB */
--
1.7.7.6
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