microblaze: fix __get_user()

[pandora-kernel.git] / crypto / cryptd.c

diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index 671d4d6..d85fab9 100644 (file)
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -137,13 +137,18 @@ static void cryptd_queue_worker(struct work_struct *work)
        struct crypto_async_request *req, *backlog;
 
        cpu_queue = container_of(work, struct cryptd_cpu_queue, work);
-       /* Only handle one request at a time to avoid hogging crypto
-        * workqueue. preempt_disable/enable is used to prevent
-        * being preempted by cryptd_enqueue_request() */
+       /*
+        * Only handle one request at a time to avoid hogging crypto workqueue.
+        * preempt_disable/enable is used to prevent being preempted by
+        * cryptd_enqueue_request(). local_bh_disable/enable is used to prevent
+        * cryptd_enqueue_request() being accessed from software interrupts.
+        */
+       local_bh_disable();
        preempt_disable();
        backlog = crypto_get_backlog(&cpu_queue->queue);
        req = crypto_dequeue_request(&cpu_queue->queue);
        preempt_enable();
+       local_bh_enable();
 
        if (!req)
                return;
@@ -560,9 +565,14 @@ static int cryptd_hash_export(struct ahash_request *req, void *out)
 
 static int cryptd_hash_import(struct ahash_request *req, const void *in)
 {
-       struct cryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
+       struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+       struct cryptd_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+       struct shash_desc *desc = cryptd_shash_desc(req);
+
+       desc->tfm = ctx->child;
+       desc->flags = req->base.flags;
 
-       return crypto_shash_import(&rctx->desc, in);
+       return crypto_shash_import(desc, in);
 }
 
 static int cryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
@@ -950,3 +960,4 @@ module_exit(cryptd_exit);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Software async crypto daemon");
+MODULE_ALIAS_CRYPTO("cryptd");