mm: Export migrate_page_move_mapping and migrate_page_copy

[pandora-kernel.git] / include / linux / crypto.h

diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 8a94217..6f501de 100644 (file)
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -24,6 +24,19 @@
 #include <linux/string.h>
 #include <linux/uaccess.h>
 
+/*
+ * Autoloaded crypto modules should only use a prefixed name to avoid allowing
+ * arbitrary modules to be loaded. Loading from userspace may still need the
+ * unprefixed names, so retains those aliases as well.
+ * This uses __MODULE_INFO directly instead of MODULE_ALIAS because pre-4.3
+ * gcc (e.g. avr32 toolchain) uses __LINE__ for uniqueness, and this macro
+ * expands twice on the same line. Instead, use a separate base name for the
+ * alias.
+ */
+#define MODULE_ALIAS_CRYPTO(name)      \
+               __MODULE_INFO(alias, alias_userspace, name);    \
+               __MODULE_INFO(alias, alias_crypto, "crypto-" name)
+
 /*
  * Algorithm masks and types.
  */
@@ -333,6 +346,7 @@ struct ablkcipher_tfm {
 
        unsigned int ivsize;
        unsigned int reqsize;
+       bool has_setkey;
 };
 
 struct aead_tfm {
@@ -643,6 +657,13 @@ static inline int crypto_ablkcipher_setkey(struct crypto_ablkcipher *tfm,
        return crt->setkey(crt->base, key, keylen);
 }
 
+static inline bool crypto_ablkcipher_has_setkey(struct crypto_ablkcipher *tfm)
+{
+       struct ablkcipher_tfm *crt = crypto_ablkcipher_crt(tfm);
+
+       return crt->has_setkey;
+}
+
 static inline struct crypto_ablkcipher *crypto_ablkcipher_reqtfm(
        struct ablkcipher_request *req)
 {