Merge remote-tracking branches 'asoc/fix/tlv320aic3x' and 'asoc/fix/wm8962' into...

[linux-drm-fsl-dcu.git] / drivers / crypto / marvell / cesa.h

diff --git a/drivers/crypto/marvell/cesa.h b/drivers/crypto/marvell/cesa.h
index b60698b30d30a2e30b24b3cc625a9821254fc980..bc2a55bc35e4727290319b462008c695b7e2923e 100644 (file)
--- a/drivers/crypto/marvell/cesa.h
+++ b/drivers/crypto/marvell/cesa.h
@@ -687,6 +687,33 @@ static inline u32 mv_cesa_get_int_mask(struct mv_cesa_engine *engine)
 
 int mv_cesa_queue_req(struct crypto_async_request *req);
 
+/*
+ * Helper function that indicates whether a crypto request needs to be
+ * cleaned up or not after being enqueued using mv_cesa_queue_req().
+ */
+static inline int mv_cesa_req_needs_cleanup(struct crypto_async_request *req,
+                                           int ret)
+{
+       /*
+        * The queue still had some space, the request was queued
+        * normally, so there's no need to clean it up.
+        */
+       if (ret == -EINPROGRESS)
+               return false;
+
+       /*
+        * The queue had not space left, but since the request is
+        * flagged with CRYPTO_TFM_REQ_MAY_BACKLOG, it was added to
+        * the backlog and will be processed later. There's no need to
+        * clean it up.
+        */
+       if (ret == -EBUSY && req->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)
+               return false;
+
+       /* Request wasn't queued, we need to clean it up */
+       return true;
+}
+
 /* TDMA functions */
 
 static inline void mv_cesa_req_dma_iter_init(struct mv_cesa_dma_iter *iter,