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-rw-r--r--common/Kconfig3
1 files changed, 3 insertions, 0 deletions
diff --git a/common/Kconfig b/common/Kconfig
index 90cee19d413..14a6c44c804 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -928,6 +928,9 @@ config BOARD_RNG_SEED
new seed for use on subsequent boots, and whether or not the
kernel should account any entropy from the given seed.
+ Default seed size (64 bytes) can be overridden by a decimal
+ environment variable rng_seed_size.
+
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