linux-kernel - [PATCH v3 3/5] virtio-crypto: move helpers into virtio_crypto

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Date:   Thu, 21 Apr 2022 18:40:14 +0800
From:   zhenwei pi <pizhenwei@...edance.com>
To:     arei.gonglei@...wei.com, mst@...hat.com
Cc:     jasowang@...hat.com, herbert@...dor.apana.org.au,
        linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        linux-crypto@...r.kernel.org, helei.sig11@...edance.com,
        davem@...emloft.net, zhenwei pi <pizhenwei@...edance.com>
Subject: [PATCH v3 3/5] virtio-crypto: move helpers into virtio_crypto_common.c

Move virtcrypto_clear_request and virtcrypto_dataq_callback into
virtio_crypto_common.c to make code clear. Then the xx_core.c
supports:
  - probe/remove/irq affinity seting for a virtio device
  - basic virtio related operations

xx_common.c supports:
  - common helpers/functions for algos

Cc: Michael S. Tsirkin <mst@...hat.com>
Cc: Jason Wang <jasowang@...hat.com>
Cc: Gonglei <arei.gonglei@...wei.com>
Signed-off-by: zhenwei pi <pizhenwei@...edance.com>
---
 drivers/crypto/virtio/virtio_crypto_common.c | 31 +++++++++++++++++++
 drivers/crypto/virtio/virtio_crypto_common.h |  2 ++
 drivers/crypto/virtio/virtio_crypto_core.c   | 32 --------------------
 3 files changed, 33 insertions(+), 32 deletions(-)

diff --git a/drivers/crypto/virtio/virtio_crypto_common.c b/drivers/crypto/virtio/virtio_crypto_common.c
index 93df73c40dd3..4a23524896fe 100644
--- a/drivers/crypto/virtio/virtio_crypto_common.c
+++ b/drivers/crypto/virtio/virtio_crypto_common.c
@@ -8,6 +8,14 @@
 
 #include "virtio_crypto_common.h"
 
+void virtcrypto_clear_request(struct virtio_crypto_request *vc_req)
+{
+	if (vc_req) {
+		kfree_sensitive(vc_req->req_data);
+		kfree(vc_req->sgs);
+	}
+}
+
 static void virtio_crypto_ctrlq_callback(struct virtio_crypto_ctrl_request *vc_ctrl_req)
 {
 	complete(&vc_ctrl_req->compl);
@@ -59,3 +67,26 @@ void virtcrypto_ctrlq_callback(struct virtqueue *vq)
 	} while (!virtqueue_enable_cb(vq));
 	spin_unlock_irqrestore(&vcrypto->ctrl_lock, flags);
 }
+
+void virtcrypto_dataq_callback(struct virtqueue *vq)
+{
+	struct virtio_crypto *vcrypto = vq->vdev->priv;
+	struct virtio_crypto_request *vc_req;
+	unsigned long flags;
+	unsigned int len;
+	unsigned int qid = vq->index;
+
+	spin_lock_irqsave(&vcrypto->data_vq[qid].lock, flags);
+	do {
+		virtqueue_disable_cb(vq);
+		while ((vc_req = virtqueue_get_buf(vq, &len)) != NULL) {
+			spin_unlock_irqrestore(
+				&vcrypto->data_vq[qid].lock, flags);
+			if (vc_req->alg_cb)
+				vc_req->alg_cb(vc_req, len);
+			spin_lock_irqsave(
+				&vcrypto->data_vq[qid].lock, flags);
+		}
+	} while (!virtqueue_enable_cb(vq));
+	spin_unlock_irqrestore(&vcrypto->data_vq[qid].lock, flags);
+}
diff --git a/drivers/crypto/virtio/virtio_crypto_common.h b/drivers/crypto/virtio/virtio_crypto_common.h
index 25b4f22e8605..4d33ed5593d4 100644
--- a/drivers/crypto/virtio/virtio_crypto_common.h
+++ b/drivers/crypto/virtio/virtio_crypto_common.h
@@ -152,4 +152,6 @@ int virtio_crypto_ctrl_vq_request(struct virtio_crypto *vcrypto, struct scatterl
 				  unsigned int out_sgs, unsigned int in_sgs,
 				  struct virtio_crypto_ctrl_request *vc_ctrl_req);
 
+void virtcrypto_dataq_callback(struct virtqueue *vq);
+
 #endif /* _VIRTIO_CRYPTO_COMMON_H */
diff --git a/drivers/crypto/virtio/virtio_crypto_core.c b/drivers/crypto/virtio/virtio_crypto_core.c
index e668d4b1bc6a..d8edefcb966c 100644
--- a/drivers/crypto/virtio/virtio_crypto_core.c
+++ b/drivers/crypto/virtio/virtio_crypto_core.c
@@ -13,38 +13,6 @@
 #include "virtio_crypto_common.h"
 
 
-void
-virtcrypto_clear_request(struct virtio_crypto_request *vc_req)
-{
-	if (vc_req) {
-		kfree_sensitive(vc_req->req_data);
-		kfree(vc_req->sgs);
-	}
-}
-
-static void virtcrypto_dataq_callback(struct virtqueue *vq)
-{
-	struct virtio_crypto *vcrypto = vq->vdev->priv;
-	struct virtio_crypto_request *vc_req;
-	unsigned long flags;
-	unsigned int len;
-	unsigned int qid = vq->index;
-
-	spin_lock_irqsave(&vcrypto->data_vq[qid].lock, flags);
-	do {
-		virtqueue_disable_cb(vq);
-		while ((vc_req = virtqueue_get_buf(vq, &len)) != NULL) {
-			spin_unlock_irqrestore(
-				&vcrypto->data_vq[qid].lock, flags);
-			if (vc_req->alg_cb)
-				vc_req->alg_cb(vc_req, len);
-			spin_lock_irqsave(
-				&vcrypto->data_vq[qid].lock, flags);
-		}
-	} while (!virtqueue_enable_cb(vq));
-	spin_unlock_irqrestore(&vcrypto->data_vq[qid].lock, flags);
-}
-
 static int virtcrypto_find_vqs(struct virtio_crypto *vi)
 {
 	vq_callback_t **callbacks;
-- 
2.20.1