ath9k: disable RNG by default

ath9k RNG will dominates all the noise sources from the real HW
RNG, disable it by default. But we strongly recommand to enable
it if the system without HW RNG, especially on embedded systems.

Signed-off-by: Miaoqing Pan <[email protected]>
Acked-by: Stephan Mueller <[email protected]>
Acked-by: Stephan Mueller <[email protected]>
Reviewed-by: Jason Cooper <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>

diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig
index f68cb00450e0c5b37d315fdd6bafabd79fb3b917..8f231c67dd516e3620e8b0b53203b736d8ee6521 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/Kconfig
+++ b/drivers/net/wireless/ath/ath9k/Kconfig
@@ -180,7 +180,7 @@ config ATH9K_HTC_DEBUGFS
 config ATH9K_HWRNG
        bool "Random number generator support"
        depends on ATH9K && (HW_RANDOM = y || HW_RANDOM = ATH9K)
-       default y
+       default n
        ---help---
          This option incorporates the ADC register output as a source of
          randomness into Linux entropy pool (/dev/urandom and /dev/random)