[PATCH v8 16/20] crypto: tcrypt: move to generic async completion

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[PATCH v8 16/20] crypto: tcrypt: move to generic async completion

Samba - samba-technical mailing list
tcrypt starts several async crypto ops and  waits for their completions.
Move it over to generic code doing the same.

Signed-off-by: Gilad Ben-Yossef <[hidden email]>
---
 crypto/tcrypt.c | 84 +++++++++++++++++----------------------------------------
 1 file changed, 25 insertions(+), 59 deletions(-)

diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 0022a18..802aa81 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -79,34 +79,11 @@ static char *check[] = {
  NULL
 };
 
-struct tcrypt_result {
- struct completion completion;
- int err;
-};
-
-static void tcrypt_complete(struct crypto_async_request *req, int err)
-{
- struct tcrypt_result *res = req->data;
-
- if (err == -EINPROGRESS)
- return;
-
- res->err = err;
- complete(&res->completion);
-}
-
 static inline int do_one_aead_op(struct aead_request *req, int ret)
 {
- if (ret == -EINPROGRESS || ret == -EBUSY) {
- struct tcrypt_result *tr = req->base.data;
+ struct crypto_wait *wait = req->base.data;
 
- ret = wait_for_completion_interruptible(&tr->completion);
- if (!ret)
- ret = tr->err;
- reinit_completion(&tr->completion);
- }
-
- return ret;
+ return crypto_wait_req(ret, wait);
 }
 
 static int test_aead_jiffies(struct aead_request *req, int enc,
@@ -248,7 +225,7 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
  char *axbuf[XBUFSIZE];
  unsigned int *b_size;
  unsigned int iv_len;
- struct tcrypt_result result;
+ struct crypto_wait wait;
 
  iv = kzalloc(MAX_IVLEN, GFP_KERNEL);
  if (!iv)
@@ -284,7 +261,7 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
  goto out_notfm;
  }
 
- init_completion(&result.completion);
+ crypto_init_wait(&wait);
  printk(KERN_INFO "\ntesting speed of %s (%s) %s\n", algo,
  get_driver_name(crypto_aead, tfm), e);
 
@@ -296,7 +273,7 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
  }
 
  aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-  tcrypt_complete, &result);
+  crypto_req_done, &wait);
 
  i = 0;
  do {
@@ -397,21 +374,16 @@ static void test_hash_sg_init(struct scatterlist *sg)
 
 static inline int do_one_ahash_op(struct ahash_request *req, int ret)
 {
- if (ret == -EINPROGRESS || ret == -EBUSY) {
- struct tcrypt_result *tr = req->base.data;
+ struct crypto_wait *wait = req->base.data;
 
- wait_for_completion(&tr->completion);
- reinit_completion(&tr->completion);
- ret = tr->err;
- }
- return ret;
+ return crypto_wait_req(ret, wait);
 }
 
 struct test_mb_ahash_data {
  struct scatterlist sg[TVMEMSIZE];
  char result[64];
  struct ahash_request *req;
- struct tcrypt_result tresult;
+ struct crypto_wait wait;
  char *xbuf[XBUFSIZE];
 };
 
@@ -440,7 +412,7 @@ static void test_mb_ahash_speed(const char *algo, unsigned int sec,
  if (testmgr_alloc_buf(data[i].xbuf))
  goto out;
 
- init_completion(&data[i].tresult.completion);
+ crypto_init_wait(&data[i].wait);
 
  data[i].req = ahash_request_alloc(tfm, GFP_KERNEL);
  if (!data[i].req) {
@@ -449,8 +421,8 @@ static void test_mb_ahash_speed(const char *algo, unsigned int sec,
  goto out;
  }
 
- ahash_request_set_callback(data[i].req, 0,
-   tcrypt_complete, &data[i].tresult);
+ ahash_request_set_callback(data[i].req, 0, crypto_req_done,
+   &data[i].wait);
  test_hash_sg_init(data[i].sg);
  }
 
@@ -492,16 +464,16 @@ static void test_mb_ahash_speed(const char *algo, unsigned int sec,
  if (ret)
  break;
 
- complete(&data[k].tresult.completion);
- data[k].tresult.err = 0;
+ crypto_req_done(&data[k].req->base, 0);
  }
 
  for (j = 0; j < k; j++) {
- struct tcrypt_result *tr = &data[j].tresult;
+ struct crypto_wait *wait = &data[j].wait;
+ int wait_ret;
 
- wait_for_completion(&tr->completion);
- if (tr->err)
- ret = tr->err;
+ wait_ret = crypto_wait_req(-EINPROGRESS, wait);
+ if (wait_ret)
+ ret = wait_ret;
  }
 
  end = get_cycles();
@@ -679,7 +651,7 @@ static void test_ahash_speed_common(const char *algo, unsigned int secs,
     struct hash_speed *speed, unsigned mask)
 {
  struct scatterlist sg[TVMEMSIZE];
- struct tcrypt_result tresult;
+ struct crypto_wait wait;
  struct ahash_request *req;
  struct crypto_ahash *tfm;
  char *output;
@@ -708,9 +680,9 @@ static void test_ahash_speed_common(const char *algo, unsigned int secs,
  goto out;
  }
 
- init_completion(&tresult.completion);
+ crypto_init_wait(&wait);
  ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-   tcrypt_complete, &tresult);
+   crypto_req_done, &wait);
 
  output = kmalloc(MAX_DIGEST_SIZE, GFP_KERNEL);
  if (!output)
@@ -765,15 +737,9 @@ static void test_hash_speed(const char *algo, unsigned int secs,
 
 static inline int do_one_acipher_op(struct skcipher_request *req, int ret)
 {
- if (ret == -EINPROGRESS || ret == -EBUSY) {
- struct tcrypt_result *tr = req->base.data;
-
- wait_for_completion(&tr->completion);
- reinit_completion(&tr->completion);
- ret = tr->err;
- }
+ struct crypto_wait *wait = req->base.data;
 
- return ret;
+ return crypto_wait_req(ret, wait);
 }
 
 static int test_acipher_jiffies(struct skcipher_request *req, int enc,
@@ -853,7 +819,7 @@ static void test_skcipher_speed(const char *algo, int enc, unsigned int secs,
  unsigned int tcount, u8 *keysize, bool async)
 {
  unsigned int ret, i, j, k, iv_len;
- struct tcrypt_result tresult;
+ struct crypto_wait wait;
  const char *key;
  char iv[128];
  struct skcipher_request *req;
@@ -866,7 +832,7 @@ static void test_skcipher_speed(const char *algo, int enc, unsigned int secs,
  else
  e = "decryption";
 
- init_completion(&tresult.completion);
+ crypto_init_wait(&wait);
 
  tfm = crypto_alloc_skcipher(algo, 0, async ? 0 : CRYPTO_ALG_ASYNC);
 
@@ -887,7 +853,7 @@ static void test_skcipher_speed(const char *algo, int enc, unsigned int secs,
  }
 
  skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-      tcrypt_complete, &tresult);
+      crypto_req_done, &wait);
 
  i = 0;
  do {
--
2.1.4