linux-kernel - [BACKPORT 4.14.y 7/8] ppp: mppe: Revert "ppp: mppe: Add softdep to arc4"

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Message-Id: <f4b1ac760bbae28721996034be7198458aa68523.1567492316.git.baolin.wang@linaro.org>
Date:   Tue,  3 Sep 2019 15:00:38 +0800
From:   Baolin Wang <baolin.wang@...aro.org>
To:     stable@...r.kernel.org, paulus@...ba.org
Cc:     ebiggers@...gle.com, linux-ppp@...r.kernel.org,
        netdev@...r.kernel.org, arnd@...db.de, baolin.wang@...aro.org,
        orsonzhai@...il.com, vincent.guittot@...aro.org,
        linux-kernel@...r.kernel.org
Subject: [BACKPORT 4.14.y 7/8] ppp: mppe: Revert "ppp: mppe: Add softdep to arc4"

From: Eric Biggers <ebiggers@...gle.com>

Commit 0e5a610b5ca5 ("ppp: mppe: switch to RC4 library interface"),
which was merged through the crypto tree for v5.3, changed ppp_mppe.c to
use the new arc4_crypt() library function rather than access RC4 through
the dynamic crypto_skcipher API.

Meanwhile commit aad1dcc4f011 ("ppp: mppe: Add softdep to arc4") was
merged through the net tree and added a module soft-dependency on "arc4".

The latter commit no longer makes sense because the code now uses the
"libarc4" module rather than "arc4", and also due to the direct use of
arc4_crypt(), no module soft-dependency is required.

So revert the latter commit.

Cc: Takashi Iwai <tiwai@...e.de>
Cc: Ard Biesheuvel <ard.biesheuvel@...aro.org>
Signed-off-by: Eric Biggers <ebiggers@...gle.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Baolin Wang <baolin.wang@...aro.org>
---
 drivers/net/ppp/ppp_mppe.c |    1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ppp/ppp_mppe.c b/drivers/net/ppp/ppp_mppe.c
index d9eda7c..6c7fd98 100644
--- a/drivers/net/ppp/ppp_mppe.c
+++ b/drivers/net/ppp/ppp_mppe.c
@@ -63,7 +63,6 @@
 MODULE_DESCRIPTION("Point-to-Point Protocol Microsoft Point-to-Point Encryption support");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_ALIAS("ppp-compress-" __stringify(CI_MPPE));
-MODULE_SOFTDEP("pre: arc4");
 MODULE_VERSION("1.0.2");

 static unsigned int
-- 
1.7.9.5