[RFC PATCH v12 4/4] LRNG - enable compile
From: Stephan Müller
Date: Tue Jul 18 2017 - 04:13:11 EST
Add LRNG compilation support.
CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
CC: Arnd Bergmann <arnd@xxxxxxxx>
CC: Jason A. Donenfeld <Jason@xxxxxxxxx>
Signed-off-by: Stephan Mueller <smueller@xxxxxxxxxx>
---
drivers/char/Kconfig | 10 ++++++++++
drivers/char/Makefile | 10 +++++++++-
2 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index ccd239a..88cc472 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -587,5 +587,15 @@ config TILE_SROM
source "drivers/char/xillybus/Kconfig"
+config LRNG
+ bool "Linux Random Number Generator"
+ select CRYPTO_DRBG_MENU
+ select CRYPTO_CMAC if CRYPTO_DRBG_CTR
+ help
+ The Linux Random Number Generator (LRNG) is the replacement
+ of the legacy /dev/random provided with drivers/char/random.c.
+ It generates entropy from different noise sources and
+ delivers significant entropy during boot.
+
endmenu
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 53e3372..87e06ec 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -2,7 +2,15 @@
# Makefile for the kernel character device drivers.
#
-obj-y += mem.o random.o
+obj-y += mem.o
+
+ifeq ($(CONFIG_LRNG),y)
+ obj-$(CONFIG_LRNG) += lrng.o
+ lrng-y += lrng_base.o lrng_chacha20.o
+else
+ obj-y += random.o
+endif
+
obj-$(CONFIG_TTY_PRINTK) += ttyprintk.o
obj-y += misc.o
obj-$(CONFIG_ATARI_DSP56K) += dsp56k.o
--
2.9.4