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usb/misc: fix chaoskey build, needs HW_RANDOM 

Fix build errors when HW_RANDOM is not enabled:

drivers/built-in.o: In function `chaoskey_disconnect':
chaoskey.c:(.text+0x5f3f00): undefined reference to `hwrng_unregister'
drivers/built-in.o: In function `chaoskey_probe':
chaoskey.c:(.text+0x5f42a6): undefined reference to `hwrng_register'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Randy Dunlap 2015-04-02 17:10:55 -07:00 committed by Greg Kroah-Hartman
parent c6ab3aec4b
commit d9aab404e6
1 changed files with 1 additions and 0 deletions
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drivers/usb/misc/Kconfig
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@ -258,6 +258,7 @@ config USB_LINK_LAYER_TEST
config USB_CHAOSKEY
tristate "ChaosKey random number generator driver support"
depends on HW_RANDOM
help
Say Y here if you want to connect an AltusMetrum ChaosKey to
your computer's USB port. The ChaosKey is a hardware random