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644f65afe1
This patch backports several patches that went upstream into
Herbert Xu's cryptodev-2.6 tree:
crypto: Use zeroing memory allocator instead of allocator/memset
crypto: crypto4xx - performance optimizations
crypto: crypto4xx - convert to skcipher
crypto: crypto4xx - avoid VLA use
crypto: crypto4xx - add aes-ctr support
crypto: crypto4xx - properly set IV after de- and encrypt
crypto: crypto4xx - extend aead fallback checks
crypto: crypto4xx - put temporary dst sg into request ctx
The older, outstanding patches from 120-wxyz series have been
upstreamed as well and therefore they have been reassigned to
fit into the series.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
(cherry picked from commit 16e39624b7)
62 lines
2.3 KiB
Diff
62 lines
2.3 KiB
Diff
From c4e90650ff0cbf123ec9cfc32026fa0fb2931658 Mon Sep 17 00:00:00 2001
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From: Christian Lamparter <chunkeey@gmail.com>
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Date: Thu, 19 Apr 2018 18:41:53 +0200
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Subject: [PATCH 4/8] crypto: crypto4xx - avoid VLA use
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This patch fixes some of the -Wvla warnings.
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crypto4xx_alg.c:83:19: warning: Variable length array is used.
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crypto4xx_alg.c:273:56: warning: Variable length array is used.
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crypto4xx_alg.c:380:32: warning: Variable length array is used.
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Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
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Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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---
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drivers/crypto/amcc/crypto4xx_alg.c | 14 ++++----------
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1 file changed, 4 insertions(+), 10 deletions(-)
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--- a/drivers/crypto/amcc/crypto4xx_alg.c
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+++ b/drivers/crypto/amcc/crypto4xx_alg.c
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@@ -80,7 +80,7 @@ static inline int crypto4xx_crypt(struct
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{
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struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req);
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struct crypto4xx_ctx *ctx = crypto_skcipher_ctx(cipher);
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- __le32 iv[ivlen];
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+ __le32 iv[AES_IV_SIZE];
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if (ivlen)
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crypto4xx_memcpy_to_le32(iv, req->iv, ivlen);
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@@ -270,13 +270,7 @@ static inline bool crypto4xx_aead_need_f
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static int crypto4xx_aead_fallback(struct aead_request *req,
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struct crypto4xx_ctx *ctx, bool do_decrypt)
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{
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- char aead_req_data[sizeof(struct aead_request) +
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- crypto_aead_reqsize(ctx->sw_cipher.aead)]
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- __aligned(__alignof__(struct aead_request));
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-
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- struct aead_request *subreq = (void *) aead_req_data;
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-
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- memset(subreq, 0, sizeof(aead_req_data));
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+ struct aead_request *subreq = aead_request_ctx(req);
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aead_request_set_tfm(subreq, ctx->sw_cipher.aead);
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aead_request_set_callback(subreq, req->base.flags,
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@@ -377,7 +371,7 @@ static int crypto4xx_crypt_aes_ccm(struc
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struct crypto_aead *aead = crypto_aead_reqtfm(req);
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unsigned int len = req->cryptlen;
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__le32 iv[16];
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- u32 tmp_sa[ctx->sa_len * 4];
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+ u32 tmp_sa[SA_AES128_CCM_LEN + 4];
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struct dynamic_sa_ctl *sa = (struct dynamic_sa_ctl *)tmp_sa;
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if (crypto4xx_aead_need_fallback(req, true, decrypt))
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@@ -386,7 +380,7 @@ static int crypto4xx_crypt_aes_ccm(struc
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if (decrypt)
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len -= crypto_aead_authsize(aead);
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- memcpy(tmp_sa, decrypt ? ctx->sa_in : ctx->sa_out, sizeof(tmp_sa));
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+ memcpy(tmp_sa, decrypt ? ctx->sa_in : ctx->sa_out, ctx->sa_len * 4);
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sa->sa_command_0.bf.digest_len = crypto_aead_authsize(aead) >> 2;
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if (req->iv[0] == 1) {
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