arcnet/com20020: add LEDS_CLASS dependency

The newly added led trigger support in the com20020-pci driver causes
build errors when CONFIG_LEDS_CLASS is disabled:

drivers/built-in.o: In function `com20020pci_probe':
(.text+0x185dc4): undefined reference to `devm_led_classdev_register'
(.text+0x185dd8): undefined reference to `devm_led_classdev_register'

This adds a Kconfig dependency to prevent the invalid configurations.
Other drivers appear to be split 50:50 between 'select' and 'depends on'
for this symbol, I picked 'depends on' as I could not find a common
policy and it generally causes fewer problems.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 8890624a4e ("arcnet: com20020-pci: add led trigger support")
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnd Bergmann 2015-11-03 14:51:29 +01:00 committed by David S. Miller
parent 1d056d9c95
commit 754107e341

View File

@ -103,6 +103,7 @@ config ARCNET_RIM_I
config ARCNET_COM20020
tristate "ARCnet COM20020 chipset driver"
depends on LEDS_CLASS
help
This is the driver for the new COM20020 chipset. It supports such
things as promiscuous mode, so packet sniffing is possible, and