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Subject[PATCH] input: fix Kconfig dependency on IIO_BUFFER
Date
When JOYSTICK_ADC is enabled, and IIO_BUFFER is disabled,
Kbuild gives the following warning:

WARNING: unmet direct dependencies detected for IIO_BUFFER_CB
Depends on [n]: IIO [=y] && IIO_BUFFER [=n]
Selected by [y]:
- JOYSTICK_ADC [=y] && !UML && INPUT [=y] && INPUT_JOYSTICK [=y] && IIO [=y]

This is because JOYSTICK_ADC selects IIO_BUFFER_CB
without selecting or depending on IIO_BUFFER,
despite IIO_BUFFER_CB depending on IIO_BUFFER.

This unmet dependency bug was detected by Kismet,
a static analysis tool for Kconfig. Please advise
if this is not the appropriate solution.

Signed-off-by: Julian Braha <julianbraha@gmail.com>
---
drivers/input/joystick/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig
index 3b23078bc7b5..db4135bbd279 100644
--- a/drivers/input/joystick/Kconfig
+++ b/drivers/input/joystick/Kconfig
@@ -46,6 +46,7 @@ config JOYSTICK_A3D
config JOYSTICK_ADC
tristate "Simple joystick connected over ADC"
depends on IIO
+ select IIO_BUFFER
select IIO_BUFFER_CB
help
Say Y here if you have a simple joystick connected over ADC.
--
2.32.0
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