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crypto: remove redundant backlog checks on EBUSY 

Now that -EBUSY return code only indicates backlog queueing
we can safely remove the now redundant check for the
CRYPTO_TFM_REQ_MAY_BACKLOG flag when -EBUSY is returned.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
hifive-unleashed-5.1
Gilad Ben-Yossef 2017-10-18 08:00:36 +01:00 committed by Herbert Xu
parent 068c2e7035
commit 4e5b0ad582
5 changed files with 13 additions and 37 deletions
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12
crypto/ahash.c
View File

@ -334,9 +334,7 @@ static int ahash_op_unaligned(struct ahash_request *req,
return err;
err = op(req);
if (err == -EINPROGRESS ||
(err == -EBUSY && (ahash_request_flags(req) &
CRYPTO_TFM_REQ_MAY_BACKLOG)))
if (err == -EINPROGRESS || err == -EBUSY)
return err;
ahash_restore_req(req, err);
@ -394,9 +392,7 @@ static int ahash_def_finup_finish1(struct ahash_request *req, int err)
req->base.complete = ahash_def_finup_done2;
err = crypto_ahash_reqtfm(req)->final(req);
if (err == -EINPROGRESS ||
(err == -EBUSY && (ahash_request_flags(req) &
CRYPTO_TFM_REQ_MAY_BACKLOG)))
if (err == -EINPROGRESS || err == -EBUSY)
return err;
out:
@ -432,9 +428,7 @@ static int ahash_def_finup(struct ahash_request *req)
return err;
err = tfm->update(req);
if (err == -EINPROGRESS ||
(err == -EBUSY && (ahash_request_flags(req) &
CRYPTO_TFM_REQ_MAY_BACKLOG)))
if (err == -EINPROGRESS || err == -EBUSY)
return err;
return ahash_def_finup_finish1(req, err);

6
crypto/cts.c
View File

@ -136,8 +136,7 @@ static void crypto_cts_encrypt_done(struct crypto_async_request *areq, int err)
goto out;
err = cts_cbc_encrypt(req);
if (err == -EINPROGRESS ||
(err == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
if (err == -EINPROGRESS || err == -EBUSY)
return;
out:
@ -229,8 +228,7 @@ static void crypto_cts_decrypt_done(struct crypto_async_request *areq, int err)
goto out;
err = cts_cbc_decrypt(req);
if (err == -EINPROGRESS ||
(err == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
if (err == -EINPROGRESS || err == -EBUSY)
return;
out:

8
crypto/lrw.c
View File

@ -328,9 +328,7 @@ static int do_encrypt(struct skcipher_request *req, int err)
crypto_skcipher_encrypt(subreq) ?:
post_crypt(req);
if (err == -EINPROGRESS ||
(err == -EBUSY &&
req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
if (err == -EINPROGRESS || err == -EBUSY)
return err;
}
@ -380,9 +378,7 @@ static int do_decrypt(struct skcipher_request *req, int err)
crypto_skcipher_decrypt(subreq) ?:
post_crypt(req);
if (err == -EINPROGRESS ||
(err == -EBUSY &&
req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
if (err == -EINPROGRESS || err == -EBUSY)
return err;
}

16
crypto/rsa-pkcs1pad.c
View File

@ -279,9 +279,7 @@ static int pkcs1pad_encrypt(struct akcipher_request *req)
req->dst, ctx->key_size - 1, req->dst_len);
err = crypto_akcipher_encrypt(&req_ctx->child_req);
if (err != -EINPROGRESS &&
(err != -EBUSY ||
!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))
if (err != -EINPROGRESS && err != -EBUSY)
return pkcs1pad_encrypt_sign_complete(req, err);
return err;
@ -383,9 +381,7 @@ static int pkcs1pad_decrypt(struct akcipher_request *req)
ctx->key_size);
err = crypto_akcipher_decrypt(&req_ctx->child_req);
if (err != -EINPROGRESS &&
(err != -EBUSY ||
!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))
if (err != -EINPROGRESS && err != -EBUSY)
return pkcs1pad_decrypt_complete(req, err);
return err;
@ -440,9 +436,7 @@ static int pkcs1pad_sign(struct akcipher_request *req)
req->dst, ctx->key_size - 1, req->dst_len);
err = crypto_akcipher_sign(&req_ctx->child_req);
if (err != -EINPROGRESS &&
(err != -EBUSY ||
!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))
if (err != -EINPROGRESS && err != -EBUSY)
return pkcs1pad_encrypt_sign_complete(req, err);
return err;
@ -561,9 +555,7 @@ static int pkcs1pad_verify(struct akcipher_request *req)
ctx->key_size);
err = crypto_akcipher_verify(&req_ctx->child_req);
if (err != -EINPROGRESS &&
(err != -EBUSY ||
!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))
if (err != -EINPROGRESS && err != -EBUSY)
return pkcs1pad_verify_complete(req, err);
return err;

8
crypto/xts.c
View File

@ -269,9 +269,7 @@ static int do_encrypt(struct skcipher_request *req, int err)
crypto_skcipher_encrypt(subreq) ?:
post_crypt(req);
if (err == -EINPROGRESS ||
(err == -EBUSY &&
req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
if (err == -EINPROGRESS || err == -EBUSY)
return err;
}
@ -321,9 +319,7 @@ static int do_decrypt(struct skcipher_request *req, int err)
crypto_skcipher_decrypt(subreq) ?:
post_crypt(req);
if (err == -EINPROGRESS ||
(err == -EBUSY &&
req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
if (err == -EINPROGRESS || err == -EBUSY)
return err;
}