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[4/4] random: Make RANDOM_TRUST_CPU depend on ARCH_RANDOM

Message ID 20200210130015.17664-5-mark.rutland@arm.com (mailing list archive)
State Mainlined
Commit 23ae0c17b89cfeb511aa0770735a319d35597072
Headers show
Series random/arm64: enable RANDOM_TRUST_CPU for arm64 | expand

Commit Message

Mark Rutland Feb. 10, 2020, 1 p.m. UTC 
From: Richard Henderson <richard.henderson@linaro.org>

Listing the set of host architectures does not scale.
Depend instead on the existence of the architecture rng.

This will allow RANDOM_TRUST_CPU to be selected on arm64. Today
ARCH_RANDOM is only selected by x86, s390, and powerpc, so this does not
adversely affect other architectures.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
---
 drivers/char/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 26956c006987..84207d5a9bb0 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -539,7 +539,7 @@  endmenu
 
 config RANDOM_TRUST_CPU
 	bool "Trust the CPU manufacturer to initialize Linux's CRNG"
-	depends on X86 || S390 || PPC
+	depends on ARCH_RANDOM
 	default n
 	help
 	Assume that CPU manufacturer (e.g., Intel or AMD for RDSEED or