apm821xx: backport crypto4xx patches from 4.15

This patch backports changes to crypto4xx in order
to get the crypto4xx operational.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

1 files changed, 49 insertions, 0 deletions

diff --git a/target/linux/apm821xx/patches-4.14/020-0014-crypto-crypto4xx-fix-off-by-one-AES-OFB.patch b/target/linux/apm821xx/patches-4.14/020-0014-crypto-crypto4xx-fix-off-by-one-AES-OFB.patch
new file mode 100644
index 0000000000..acded24bbb
--- /dev/null
+++ b/target/linux/apm821xx/patches-4.14/020-0014-crypto-crypto4xx-fix-off-by-one-AES-OFB.patch
@@ -0,0 +1,49 @@
+From e9b8e4e1129d0886094cfe013cdbaafc4ce0de76 Mon Sep 17 00:00:00 2001
+From: Christian Lamparter <chunkeey@gmail.com>
+Date: Wed, 4 Oct 2017 01:00:06 +0200
+Subject: [PATCH 14/25] crypto: crypto4xx - fix off-by-one AES-OFB
+
+I used aes-cbc as a template for ofb. But sadly I forgot
+to update set_key method to crypto4xx_setkey_aes_ofb().
+
+this was caught by the testmgr:
+alg: skcipher: Test 1 failed (invalid result) on encr. for ofb-aes-ppc4xx
+00000000: 76 49 ab ac 81 19 b2 46 ce e9 8e 9b 12 e9 19 7d
+00000010: 50 86 cb 9b 50 72 19 ee 95 db 11 3a 91 76 78 b2
+00000020: 73 be d6 b8 e3 c1 74 3b 71 16 e6 9e 22 22 95 16
+00000030: 3f f1 ca a1 68 1f ac 09 12 0e ca 30 75 86 e1 a7
+
+With the correct set_key method, the aes-ofb cipher passes the test.
+
+name         : ofb(aes)
+driver       : ofb-aes-ppc4xx
+module       : crypto4xx
+priority     : 300
+refcnt       : 1
+selftest     : passed
+internal     : no
+type         : ablkcipher
+async        : yes
+blocksize    : 16
+min keysize  : 16
+max keysize  : 32
+ivsize       : 16
+geniv        : <default>
+
+Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
+Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
+---
+ drivers/crypto/amcc/crypto4xx_core.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/crypto/amcc/crypto4xx_core.c
++++ b/drivers/crypto/amcc/crypto4xx_core.c
+@@ -1148,7 +1148,7 @@ struct crypto4xx_alg_common crypto4xx_al
+ 				.min_keysize	= AES_MIN_KEY_SIZE,
+ 				.max_keysize	= AES_MAX_KEY_SIZE,
+ 				.ivsize		= AES_IV_SIZE,
+-				.setkey		= crypto4xx_setkey_aes_cbc,
++				.setkey		= crypto4xx_setkey_aes_ofb,
+ 				.encrypt	= crypto4xx_encrypt,
+ 				.decrypt	= crypto4xx_decrypt,
+ 			}