linux-kernel - [PATCH] virtio-crypto: Remove unused virtcrypto functions

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Message-ID: <20250614000505.596563-1-linux@treblig.org>
Date: Sat, 14 Jun 2025 01:05:05 +0100
From: linux@...blig.org
To: arei.gonglei@...wei.com,
	mst@...hat.com,
	jasowang@...hat.com,
	xuanzhuo@...ux.alibaba.com,
	eperezma@...hat.com
Cc: herbert@...dor.apana.org.au,
	davem@...emloft.net,
	virtualization@...ts.linux.dev,
	linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH] virtio-crypto: Remove unused virtcrypto functions

From: "Dr. David Alan Gilbert" <linux@...blig.org>

virtcrypto_devmgr_get_first() and virtcrypto_dev_in_use() were added in
2016 by
commit dbaf0624ffa5 ("crypto: add virtio-crypto driver")

but have remained unused.

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 drivers/crypto/virtio/virtio_crypto_common.h |  2 --
 drivers/crypto/virtio/virtio_crypto_mgr.c    | 36 --------------------
 2 files changed, 38 deletions(-)

diff --git a/drivers/crypto/virtio/virtio_crypto_common.h b/drivers/crypto/virtio/virtio_crypto_common.h
index 7059bbe5a2eb..19c934af3df6 100644
--- a/drivers/crypto/virtio/virtio_crypto_common.h
+++ b/drivers/crypto/virtio/virtio_crypto_common.h
@@ -113,8 +113,6 @@ struct virtio_crypto_request {
 int virtcrypto_devmgr_add_dev(struct virtio_crypto *vcrypto_dev);
 struct list_head *virtcrypto_devmgr_get_head(void);
 void virtcrypto_devmgr_rm_dev(struct virtio_crypto *vcrypto_dev);
-struct virtio_crypto *virtcrypto_devmgr_get_first(void);
-int virtcrypto_dev_in_use(struct virtio_crypto *vcrypto_dev);
 int virtcrypto_dev_get(struct virtio_crypto *vcrypto_dev);
 void virtcrypto_dev_put(struct virtio_crypto *vcrypto_dev);
 int virtcrypto_dev_started(struct virtio_crypto *vcrypto_dev);
diff --git a/drivers/crypto/virtio/virtio_crypto_mgr.c b/drivers/crypto/virtio/virtio_crypto_mgr.c
index bddbd8ebfebe..06c74fa132cd 100644
--- a/drivers/crypto/virtio/virtio_crypto_mgr.c
+++ b/drivers/crypto/virtio/virtio_crypto_mgr.c
@@ -81,42 +81,6 @@ void virtcrypto_devmgr_rm_dev(struct virtio_crypto *vcrypto_dev)
 	mutex_unlock(&table_lock);
 }
 
-/*
- * virtcrypto_devmgr_get_first()
- *
- * Function returns the first virtio crypto device from the acceleration
- * framework.
- *
- * To be used by virtio crypto device specific drivers.
- *
- * Return: pointer to vcrypto_dev or NULL if not found.
- */
-struct virtio_crypto *virtcrypto_devmgr_get_first(void)
-{
-	struct virtio_crypto *dev = NULL;
-
-	mutex_lock(&table_lock);
-	if (!list_empty(&virtio_crypto_table))
-		dev = list_first_entry(&virtio_crypto_table,
-					struct virtio_crypto,
-				    list);
-	mutex_unlock(&table_lock);
-	return dev;
-}
-
-/*
- * virtcrypto_dev_in_use() - Check whether vcrypto_dev is currently in use
- * @vcrypto_dev: Pointer to virtio crypto device.
- *
- * To be used by virtio crypto device specific drivers.
- *
- * Return: 1 when device is in use, 0 otherwise.
- */
-int virtcrypto_dev_in_use(struct virtio_crypto *vcrypto_dev)
-{
-	return atomic_read(&vcrypto_dev->ref_count) != 0;
-}
-
 /*
  * virtcrypto_dev_get() - Increment vcrypto_dev reference count
  * @vcrypto_dev: Pointer to virtio crypto device.
-- 
2.49.0