From dc51f25752bfcb5f1edbac1ca4ce16af7b3bd507 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Wed, 12 Jun 2019 18:19:53 +0200
Subject: crypto: arc4 - refactor arc4 core code into separate library

Refactor the core rc4 handling so we can move most users to a library
interface, permitting us to drop the cipher interface entirely in a
future patch. This is part of an effort to simplify the crypto API
and improve its robustness against incorrect use.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'crypto/Kconfig')

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 8c588ed36253..e801450bcb1c 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1237,9 +1237,13 @@ config CRYPTO_ANUBIS
 	  <https://www.cosic.esat.kuleuven.be/nessie/reports/>
 	  <http://www.larc.usp.br/~pbarreto/AnubisPage.html>
 
+config CRYPTO_LIB_ARC4
+	tristate
+
 config CRYPTO_ARC4
 	tristate "ARC4 cipher algorithm"
 	select CRYPTO_BLKCIPHER
+	select CRYPTO_LIB_ARC4
 	help
 	  ARC4 cipher algorithm.
 
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