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crypto: hash - Remove unused async iterators 

Revert "crypto: hash - Add real ahash walk interface"
This reverts commit 75ecb231ff.

The callers of the functions in this commit were removed in ab8085c130

Remove these unused calls.

Fixes: ab8085c130 ("crypto: x86 - remove SHA multibuffer routines and mcryptd")
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ira Weiny 2020-08-10 17:40:15 -07:00 committed by Herbert Xu
parent 5d1cdfde11
commit 8afa25aa83
2 changed files with 4 additions and 50 deletions
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41
crypto/ahash.c
View File

@ -10,7 +10,6 @@
#include <crypto/internal/hash.h>
#include <crypto/scatterwalk.h>
#include <linux/bug.h>
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/module.h>
@ -46,10 +45,7 @@ static int hash_walk_next(struct crypto_hash_walk *walk)
unsigned int nbytes = min(walk->entrylen,
((unsigned int)(PAGE_SIZE)) - offset);
if (walk->flags & CRYPTO_ALG_ASYNC)
walk->data = kmap(walk->pg);
else
walk->data = kmap_atomic(walk->pg);
walk->data = kmap_atomic(walk->pg);
walk->data += offset;
if (offset & alignmask) {
@ -99,16 +95,8 @@ int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err)
}
}
if (walk->flags & CRYPTO_ALG_ASYNC)
kunmap(walk->pg);
else {
kunmap_atomic(walk->data);
/*
* The may sleep test only makes sense for sync users.
* Async users don't need to sleep here anyway.
*/
crypto_yield(walk->flags);
}
kunmap_atomic(walk->data);
crypto_yield(walk->flags);
if (err)
return err;
@ -140,33 +128,12 @@ int crypto_hash_walk_first(struct ahash_request *req,
walk->alignmask = crypto_ahash_alignmask(crypto_ahash_reqtfm(req));
walk->sg = req->src;
walk->flags = req->base.flags & CRYPTO_TFM_REQ_MASK;
walk->flags = req->base.flags;
return hash_walk_new_entry(walk);
}
EXPORT_SYMBOL_GPL(crypto_hash_walk_first);
int crypto_ahash_walk_first(struct ahash_request *req,
struct crypto_hash_walk *walk)
{
walk->total = req->nbytes;
if (!walk->total) {
walk->entrylen = 0;
return 0;
}
walk->alignmask = crypto_ahash_alignmask(crypto_ahash_reqtfm(req));
walk->sg = req->src;
walk->flags = req->base.flags & CRYPTO_TFM_REQ_MASK;
walk->flags |= CRYPTO_ALG_ASYNC;
BUILD_BUG_ON(CRYPTO_TFM_REQ_MASK & CRYPTO_ALG_ASYNC);
return hash_walk_new_entry(walk);
}
EXPORT_SYMBOL_GPL(crypto_ahash_walk_first);
static int ahash_setkey_unaligned(struct crypto_ahash *tfm, const u8 *key,
unsigned int keylen)
{

13
include/crypto/internal/hash.h
View File

@ -62,25 +62,12 @@ struct crypto_shash_spawn {
int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);
int crypto_hash_walk_first(struct ahash_request *req,
struct crypto_hash_walk *walk);
int crypto_ahash_walk_first(struct ahash_request *req,
struct crypto_hash_walk *walk);
static inline int crypto_ahash_walk_done(struct crypto_hash_walk *walk,
int err)
{
return crypto_hash_walk_done(walk, err);
}
static inline int crypto_hash_walk_last(struct crypto_hash_walk *walk)
{
return !(walk->entrylen | walk->total);
}
static inline int crypto_ahash_walk_last(struct crypto_hash_walk *walk)
{
return crypto_hash_walk_last(walk);
}
int crypto_register_ahash(struct ahash_alg *alg);
void crypto_unregister_ahash(struct ahash_alg *alg);
int crypto_register_ahashes(struct ahash_alg *algs, int count);