KVM: MMU: invalidate and flush on spte small->large page size change

[safe/jmp/linux-2.6] / crypto / api.c

diff --git a/crypto/api.c b/crypto/api.c
index f500fb8..033a714 100644 (file)
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -10,7 +10,7 @@
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option) 
+ * Software Foundation; either version 2 of the License, or (at your option)
  * any later version.
  *
  */
@@ -217,14 +217,11 @@ struct crypto_alg *crypto_larval_lookup(const char *name, u32 type, u32 mask)
 
        alg = crypto_alg_lookup(name, type, mask);
        if (!alg) {
-               char tmp[CRYPTO_MAX_ALG_NAME];
-
-               request_module(name);
+               request_module("%s", name);
 
                if (!((type ^ CRYPTO_ALG_NEED_FALLBACK) & mask &
-                     CRYPTO_ALG_NEED_FALLBACK) &&
-                   snprintf(tmp, sizeof(tmp), "%s-all", name) < sizeof(tmp))
-                       request_module(tmp);
+                     CRYPTO_ALG_NEED_FALLBACK))
+                       request_module("%s-all", name);
 
                alg = crypto_alg_lookup(name, type, mask);
        }
@@ -288,21 +285,14 @@ static int crypto_init_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
        switch (crypto_tfm_alg_type(tfm)) {
        case CRYPTO_ALG_TYPE_CIPHER:
                return crypto_init_cipher_ops(tfm);
-               
-       case CRYPTO_ALG_TYPE_DIGEST:
-               if ((mask & CRYPTO_ALG_TYPE_HASH_MASK) !=
-                   CRYPTO_ALG_TYPE_HASH_MASK)
-                       return crypto_init_digest_ops_async(tfm);
-               else
-                       return crypto_init_digest_ops(tfm);
 
        case CRYPTO_ALG_TYPE_COMPRESS:
                return crypto_init_compress_ops(tfm);
-       
+
        default:
                break;
        }
-       
+
        BUG();
        return -EINVAL;
 }
@@ -321,18 +311,13 @@ static void crypto_exit_ops(struct crypto_tfm *tfm)
        case CRYPTO_ALG_TYPE_CIPHER:
                crypto_exit_cipher_ops(tfm);
                break;
-               
-       case CRYPTO_ALG_TYPE_DIGEST:
-               crypto_exit_digest_ops(tfm);
-               break;
-               
+
        case CRYPTO_ALG_TYPE_COMPRESS:
                crypto_exit_compress_ops(tfm);
                break;
-       
+
        default:
                BUG();
-               
        }
 }
 
@@ -352,11 +337,7 @@ static unsigned int crypto_ctxsize(struct crypto_alg *alg, u32 type, u32 mask)
        case CRYPTO_ALG_TYPE_CIPHER:
                len += crypto_cipher_ctxsize(alg);
                break;
-               
-       case CRYPTO_ALG_TYPE_DIGEST:
-               len += crypto_digest_ctxsize(alg);
-               break;
-               
+
        case CRYPTO_ALG_TYPE_COMPRESS:
                len += crypto_compress_ctxsize(alg);
                break;
@@ -475,7 +456,7 @@ void *crypto_create_tfm(struct crypto_alg *alg,
        int err = -ENOMEM;
 
        tfmsize = frontend->tfmsize;
-       total = tfmsize + sizeof(*tfm) + frontend->extsize(alg, frontend);
+       total = tfmsize + sizeof(*tfm) + frontend->extsize(alg);
 
        mem = kzalloc(total, GFP_KERNEL);
        if (mem == NULL)
@@ -484,7 +465,7 @@ void *crypto_create_tfm(struct crypto_alg *alg,
        tfm = (struct crypto_tfm *)(mem + tfmsize);
        tfm->__crt_alg = alg;
 
-       err = frontend->init_tfm(tfm, frontend);
+       err = frontend->init_tfm(tfm);
        if (err)
                goto out_free_tfm;
 
@@ -506,6 +487,27 @@ out:
 }
 EXPORT_SYMBOL_GPL(crypto_create_tfm);
 
+struct crypto_alg *crypto_find_alg(const char *alg_name,
+                                  const struct crypto_type *frontend,
+                                  u32 type, u32 mask)
+{
+       struct crypto_alg *(*lookup)(const char *name, u32 type, u32 mask) =
+               crypto_alg_mod_lookup;
+
+       if (frontend) {
+               type &= frontend->maskclear;
+               mask &= frontend->maskclear;
+               type |= frontend->type;
+               mask |= frontend->maskset;
+
+               if (frontend->lookup)
+                       lookup = frontend->lookup;
+       }
+
+       return lookup(alg_name, type, mask);
+}
+EXPORT_SYMBOL_GPL(crypto_find_alg);
+
 /*
  *     crypto_alloc_tfm - Locate algorithm and allocate transform
  *     @alg_name: Name of algorithm
@@ -529,21 +531,13 @@ EXPORT_SYMBOL_GPL(crypto_create_tfm);
 void *crypto_alloc_tfm(const char *alg_name,
                       const struct crypto_type *frontend, u32 type, u32 mask)
 {
-       struct crypto_alg *(*lookup)(const char *name, u32 type, u32 mask);
        void *tfm;
        int err;
 
-       type &= frontend->maskclear;
-       mask &= frontend->maskclear;
-       type |= frontend->type;
-       mask |= frontend->maskset;
-
-       lookup = frontend->lookup ?: crypto_alg_mod_lookup;
-
        for (;;) {
                struct crypto_alg *alg;
 
-               alg = lookup(alg_name, type, mask);
+               alg = crypto_find_alg(alg_name, frontend, type, mask);
                if (IS_ERR(alg)) {
                        err = PTR_ERR(alg);
                        goto err;
@@ -598,12 +592,12 @@ int crypto_has_alg(const char *name, u32 type, u32 mask)
 {
        int ret = 0;
        struct crypto_alg *alg = crypto_alg_mod_lookup(name, type, mask);
-       
+
        if (!IS_ERR(alg)) {
                crypto_mod_put(alg);
                ret = 1;
        }
-       
+
        return ret;
 }
 EXPORT_SYMBOL_GPL(crypto_has_alg);