diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c
index fae3e1ad2df7..67f3001153ae 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.c
@@ -163,7 +163,7 @@ void mdp_vpu_unregister(struct mdp_dev *mdp)
 }
 
 static int mdp_vpu_sendmsg(struct mdp_vpu_dev *vpu, enum scp_ipi_id id,
-			   void *buf, unsigned int len)
+			   const void *buf, unsigned int len)
 {
 	struct mdp_dev *mdp = vpu_to_mdp(vpu);
 	unsigned int t = MDP_VPU_MESSAGE_TIMEOUT;
diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index bb6f6a16d895..85a74c9ec521 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c
@@ -1078,7 +1078,7 @@ static void scp_unregister_ipi(struct platform_device *pdev, u32 id)
 	scp_ipi_unregister(scp, id);
 }
 
-static int scp_send_ipi(struct platform_device *pdev, u32 id, void *buf,
+static int scp_send_ipi(struct platform_device *pdev, u32 id, const void *buf,
 			unsigned int len, unsigned int wait)
 {
 	struct mtk_scp *scp = platform_get_drvdata(pdev);
diff --git a/drivers/remoteproc/mtk_scp_ipi.c b/drivers/remoteproc/mtk_scp_ipi.c
index 7a37e273b3af..ee2f1121411f 100644
--- a/drivers/remoteproc/mtk_scp_ipi.c
+++ b/drivers/remoteproc/mtk_scp_ipi.c
@@ -156,7 +156,7 @@ EXPORT_SYMBOL_GPL(scp_ipi_unlock);
  *
  * Return: 0 if sending data successfully, -error on error.
  **/
-int scp_ipi_send(struct mtk_scp *scp, u32 id, void *buf, unsigned int len,
+int scp_ipi_send(struct mtk_scp *scp, u32 id, const void *buf, unsigned int len,
 		 unsigned int wait)
 {
 	struct mtk_share_obj __iomem *send_obj = scp->send_buf;
diff --git a/drivers/rpmsg/mtk_rpmsg.c b/drivers/rpmsg/mtk_rpmsg.c
index 0e03c5336609..1b670ed54cfa 100644
--- a/drivers/rpmsg/mtk_rpmsg.c
+++ b/drivers/rpmsg/mtk_rpmsg.c
@@ -135,7 +135,7 @@ static void mtk_rpmsg_destroy_ept(struct rpmsg_endpoint *ept)
 	kref_put(&ept->refcount, __mtk_ept_release);
 }
 
-static int mtk_rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len)
+static int mtk_rpmsg_send(struct rpmsg_endpoint *ept, const void *data, int len)
 {
 	struct mtk_rpmsg_rproc_subdev *mtk_subdev =
 		to_mtk_rpmsg_endpoint(ept)->mtk_subdev;
@@ -144,7 +144,7 @@ static int mtk_rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len)
 					  len, 0);
 }
 
-static int mtk_rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len)
+static int mtk_rpmsg_trysend(struct rpmsg_endpoint *ept, const void *data, int len)
 {
 	struct mtk_rpmsg_rproc_subdev *mtk_subdev =
 		to_mtk_rpmsg_endpoint(ept)->mtk_subdev;
diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index 9ef17c2e45b0..401a4ece0c97 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -1474,7 +1474,7 @@ unlock:
 }
 
 static int __qcom_glink_send(struct glink_channel *channel,
-			     void *data, int len, bool wait)
+			     const void *data, int len, bool wait)
 {
 	struct qcom_glink *glink = channel->glink;
 	struct glink_core_rx_intent *intent = NULL;
@@ -1553,28 +1553,31 @@ static int __qcom_glink_send(struct glink_channel *channel,
 	return 0;
 }
 
-static int qcom_glink_send(struct rpmsg_endpoint *ept, void *data, int len)
+static int qcom_glink_send(struct rpmsg_endpoint *ept, const void *data, int len)
 {
 	struct glink_channel *channel = to_glink_channel(ept);
 
 	return __qcom_glink_send(channel, data, len, true);
 }
 
-static int qcom_glink_trysend(struct rpmsg_endpoint *ept, void *data, int len)
+static int qcom_glink_trysend(struct rpmsg_endpoint *ept, const void *data,
+			      int len)
 {
 	struct glink_channel *channel = to_glink_channel(ept);
 
 	return __qcom_glink_send(channel, data, len, false);
 }
 
-static int qcom_glink_sendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst)
+static int qcom_glink_sendto(struct rpmsg_endpoint *ept, const void *data,
+			     int len, u32 dst)
 {
 	struct glink_channel *channel = to_glink_channel(ept);
 
 	return __qcom_glink_send(channel, data, len, true);
 }
 
-static int qcom_glink_trysendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst)
+static int qcom_glink_trysendto(struct rpmsg_endpoint *ept, const void *data,
+				int len, u32 dst)
 {
 	struct glink_channel *channel = to_glink_channel(ept);
 
diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c
index e1eb450f4fea..3ac863f400ec 100644
--- a/drivers/rpmsg/qcom_smd.c
+++ b/drivers/rpmsg/qcom_smd.c
@@ -960,28 +960,30 @@ static void qcom_smd_destroy_ept(struct rpmsg_endpoint *ept)
 	kref_put(&ept->refcount, __ept_release);
 }
 
-static int qcom_smd_send(struct rpmsg_endpoint *ept, void *data, int len)
+static int qcom_smd_send(struct rpmsg_endpoint *ept, const void *data, int len)
 {
 	struct qcom_smd_endpoint *qsept = to_smd_endpoint(ept);
 
 	return __qcom_smd_send(qsept->qsch, data, len, true);
 }
 
-static int qcom_smd_trysend(struct rpmsg_endpoint *ept, void *data, int len)
+static int qcom_smd_trysend(struct rpmsg_endpoint *ept, const void *data, int len)
 {
 	struct qcom_smd_endpoint *qsept = to_smd_endpoint(ept);
 
 	return __qcom_smd_send(qsept->qsch, data, len, false);
 }
 
-static int qcom_smd_sendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst)
+static int qcom_smd_sendto(struct rpmsg_endpoint *ept, const void *data, int len,
+			   u32 dst)
 {
 	struct qcom_smd_endpoint *qsept = to_smd_endpoint(ept);
 
 	return __qcom_smd_send(qsept->qsch, data, len, true);
 }
 
-static int qcom_smd_trysendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst)
+static int qcom_smd_trysendto(struct rpmsg_endpoint *ept, const void *data,
+			      int len, u32 dst)
 {
 	struct qcom_smd_endpoint *qsept = to_smd_endpoint(ept);
 
diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c
index 96964745065b..e7f7831d37f8 100644
--- a/drivers/rpmsg/rpmsg_core.c
+++ b/drivers/rpmsg/rpmsg_core.c
@@ -153,7 +153,7 @@ EXPORT_SYMBOL(rpmsg_destroy_ept);
  *
  * Return: 0 on success and an appropriate error value on failure.
  */
-int rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len)
+int rpmsg_send(struct rpmsg_endpoint *ept, const void *data, int len)
 {
 	if (WARN_ON(!ept))
 		return -EINVAL;
@@ -182,7 +182,7 @@ EXPORT_SYMBOL(rpmsg_send);
  *
  * Return: 0 on success and an appropriate error value on failure.
  */
-int rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst)
+int rpmsg_sendto(struct rpmsg_endpoint *ept, const void *data, int len, u32 dst)
 {
 	if (WARN_ON(!ept))
 		return -EINVAL;
@@ -210,7 +210,7 @@ EXPORT_SYMBOL(rpmsg_sendto);
  *
  * Return: 0 on success and an appropriate error value on failure.
  */
-int rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len)
+int rpmsg_trysend(struct rpmsg_endpoint *ept, const void *data, int len)
 {
 	if (WARN_ON(!ept))
 		return -EINVAL;
@@ -238,7 +238,7 @@ EXPORT_SYMBOL(rpmsg_trysend);
  *
  * Return: 0 on success and an appropriate error value on failure.
  */
-int rpmsg_trysendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst)
+int rpmsg_trysendto(struct rpmsg_endpoint *ept, const void *data, int len, u32 dst)
 {
 	if (WARN_ON(!ept))
 		return -EINVAL;
@@ -650,7 +650,7 @@ static int __init rpmsg_init(void)
 	ret = bus_register(&rpmsg_bus);
 	if (ret) {
 		pr_err("failed to register rpmsg bus: %d\n", ret);
-		class_destroy(&rpmsg_class);
+		class_unregister(&rpmsg_class);
 	}
 	return ret;
 }
@@ -659,7 +659,7 @@ postcore_initcall(rpmsg_init);
 static void __exit rpmsg_fini(void)
 {
 	bus_unregister(&rpmsg_bus);
-	class_destroy(&rpmsg_class);
+	class_unregister(&rpmsg_class);
 }
 module_exit(rpmsg_fini);
 
diff --git a/drivers/rpmsg/rpmsg_internal.h b/drivers/rpmsg/rpmsg_internal.h
index 397e4926bd02..a8b7065fd165 100644
--- a/drivers/rpmsg/rpmsg_internal.h
+++ b/drivers/rpmsg/rpmsg_internal.h
@@ -63,11 +63,11 @@ struct rpmsg_device_ops {
 struct rpmsg_endpoint_ops {
 	void (*destroy_ept)(struct rpmsg_endpoint *ept);
 
-	int (*send)(struct rpmsg_endpoint *ept, void *data, int len);
-	int (*sendto)(struct rpmsg_endpoint *ept, void *data, int len, u32 dst);
+	int (*send)(struct rpmsg_endpoint *ept, const void *data, int len);
+	int (*sendto)(struct rpmsg_endpoint *ept, const void *data, int len, u32 dst);
 
-	int (*trysend)(struct rpmsg_endpoint *ept, void *data, int len);
-	int (*trysendto)(struct rpmsg_endpoint *ept, void *data, int len, u32 dst);
+	int (*trysend)(struct rpmsg_endpoint *ept, const void *data, int len);
+	int (*trysendto)(struct rpmsg_endpoint *ept, const void *data, int len, u32 dst);
 	__poll_t (*poll)(struct rpmsg_endpoint *ept, struct file *filp,
 			     poll_table *wait);
 	int (*set_flow_control)(struct rpmsg_endpoint *ept, bool pause, u32 dst);
diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 8d9e2b4dc7c1..5ae15111fb4f 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -136,11 +136,12 @@ struct virtio_rpmsg_channel {
 #define RPMSG_RESERVED_ADDRESSES	(1024)
 
 static void virtio_rpmsg_destroy_ept(struct rpmsg_endpoint *ept);
-static int virtio_rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len);
-static int virtio_rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len,
-			       u32 dst);
-static int virtio_rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len);
-static int virtio_rpmsg_trysendto(struct rpmsg_endpoint *ept, void *data,
+static int virtio_rpmsg_send(struct rpmsg_endpoint *ept, const void *data, int len);
+static int virtio_rpmsg_sendto(struct rpmsg_endpoint *ept, const void *data,
+			       int len, u32 dst);
+static int virtio_rpmsg_trysend(struct rpmsg_endpoint *ept, const void *data,
+				int len);
+static int virtio_rpmsg_trysendto(struct rpmsg_endpoint *ept, const void *data,
 				  int len, u32 dst);
 static __poll_t virtio_rpmsg_poll(struct rpmsg_endpoint *ept, struct file *filp,
 				  poll_table *wait);
@@ -490,7 +491,7 @@ static void *get_a_tx_buf(struct virtproc_info *vrp)
  */
 static int rpmsg_send_offchannel_raw(struct rpmsg_device *rpdev,
 				     u32 src, u32 dst,
-				     void *data, int len, bool wait)
+				     const void *data, int len, bool wait)
 {
 	struct virtio_rpmsg_channel *vch = to_virtio_rpmsg_channel(rpdev);
 	struct virtproc_info *vrp = vch->vrp;
@@ -580,7 +581,7 @@ out:
 	return err;
 }
 
-static int virtio_rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len)
+static int virtio_rpmsg_send(struct rpmsg_endpoint *ept, const void *data, int len)
 {
 	struct rpmsg_device *rpdev = ept->rpdev;
 	u32 src = ept->addr, dst = rpdev->dst;
@@ -588,8 +589,8 @@ static int virtio_rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len)
 	return rpmsg_send_offchannel_raw(rpdev, src, dst, data, len, true);
 }
 
-static int virtio_rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len,
-			       u32 dst)
+static int virtio_rpmsg_sendto(struct rpmsg_endpoint *ept, const void *data,
+			       int len, u32 dst)
 {
 	struct rpmsg_device *rpdev = ept->rpdev;
 	u32 src = ept->addr;
@@ -597,7 +598,8 @@ static int virtio_rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len,
 	return rpmsg_send_offchannel_raw(rpdev, src, dst, data, len, true);
 }
 
-static int virtio_rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len)
+static int virtio_rpmsg_trysend(struct rpmsg_endpoint *ept, const void *data,
+				int len)
 {
 	struct rpmsg_device *rpdev = ept->rpdev;
 	u32 src = ept->addr, dst = rpdev->dst;
@@ -605,7 +607,7 @@ static int virtio_rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len)
 	return rpmsg_send_offchannel_raw(rpdev, src, dst, data, len, false);
 }
 
-static int virtio_rpmsg_trysendto(struct rpmsg_endpoint *ept, void *data,
+static int virtio_rpmsg_trysendto(struct rpmsg_endpoint *ept, const void *data,
 				  int len, u32 dst)
 {
 	struct rpmsg_device *rpdev = ept->rpdev;
diff --git a/drivers/soc/qcom/apr.c b/drivers/soc/qcom/apr.c
index 78e72379a6e0..ea7f83916d8d 100644
--- a/drivers/soc/qcom/apr.c
+++ b/drivers/soc/qcom/apr.c
@@ -123,10 +123,10 @@ gpr_port_t *gpr_alloc_port(struct apr_device *gdev, struct device *dev,
 }
 EXPORT_SYMBOL_GPL(gpr_alloc_port);
 
-static int pkt_router_send_svc_pkt(struct pkt_router_svc *svc, struct gpr_pkt *pkt)
+static int pkt_router_send_svc_pkt(struct pkt_router_svc *svc, const struct gpr_pkt *pkt)
 {
 	struct packet_router *pr = svc->pr;
-	struct gpr_hdr *hdr;
+	const struct gpr_hdr *hdr;
 	unsigned long flags;
 	int ret;
 
@@ -139,13 +139,13 @@ static int pkt_router_send_svc_pkt(struct pkt_router_svc *svc, struct gpr_pkt *p
 	return ret ? ret : hdr->pkt_size;
 }
 
-int gpr_send_pkt(struct apr_device *gdev, struct gpr_pkt *pkt)
+int gpr_send_pkt(struct apr_device *gdev, const struct gpr_pkt *pkt)
 {
 	return pkt_router_send_svc_pkt(&gdev->svc, pkt);
 }
 EXPORT_SYMBOL_GPL(gpr_send_pkt);
 
-int gpr_send_port_pkt(gpr_port_t *port, struct gpr_pkt *pkt)
+int gpr_send_port_pkt(gpr_port_t *port, const struct gpr_pkt *pkt)
 {
 	return pkt_router_send_svc_pkt(port, pkt);
 }
diff --git a/include/linux/remoteproc/mtk_scp.h b/include/linux/remoteproc/mtk_scp.h
index 344ff41c22c7..4070537d6542 100644
--- a/include/linux/remoteproc/mtk_scp.h
+++ b/include/linux/remoteproc/mtk_scp.h
@@ -58,7 +58,7 @@ int scp_ipi_register(struct mtk_scp *scp, u32 id, scp_ipi_handler_t handler,
 		     void *priv);
 void scp_ipi_unregister(struct mtk_scp *scp, u32 id);
 
-int scp_ipi_send(struct mtk_scp *scp, u32 id, void *buf, unsigned int len,
+int scp_ipi_send(struct mtk_scp *scp, u32 id, const void *buf, unsigned int len,
 		 unsigned int wait);
 
 unsigned int scp_get_vdec_hw_capa(struct mtk_scp *scp);
diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h
index fb7ab9165645..83266ce14642 100644
--- a/include/linux/rpmsg.h
+++ b/include/linux/rpmsg.h
@@ -182,11 +182,11 @@ struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_device *,
 					rpmsg_rx_cb_t cb, void *priv,
 					struct rpmsg_channel_info chinfo);
 
-int rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len);
-int rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst);
+int rpmsg_send(struct rpmsg_endpoint *ept, const void *data, int len);
+int rpmsg_sendto(struct rpmsg_endpoint *ept, const void *data, int len, u32 dst);
 
-int rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len);
-int rpmsg_trysendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst);
+int rpmsg_trysend(struct rpmsg_endpoint *ept, const void *data, int len);
+int rpmsg_trysendto(struct rpmsg_endpoint *ept, const void *data, int len, u32 dst);
 
 __poll_t rpmsg_poll(struct rpmsg_endpoint *ept, struct file *filp,
 			poll_table *wait);
@@ -249,7 +249,7 @@ static inline struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_device *rpdev
 	return NULL;
 }
 
-static inline int rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len)
+static inline int rpmsg_send(struct rpmsg_endpoint *ept, const void *data, int len)
 {
 	/* This shouldn't be possible */
 	WARN_ON(1);
@@ -257,7 +257,7 @@ static inline int rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len)
 	return -ENXIO;
 }
 
-static inline int rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len,
+static inline int rpmsg_sendto(struct rpmsg_endpoint *ept, const void *data, int len,
 			       u32 dst)
 {
 	/* This shouldn't be possible */
@@ -267,7 +267,8 @@ static inline int rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len,
 
 }
 
-static inline int rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len)
+static inline int rpmsg_trysend(struct rpmsg_endpoint *ept, const void *data,
+				int len)
 {
 	/* This shouldn't be possible */
 	WARN_ON(1);
@@ -275,7 +276,7 @@ static inline int rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len)
 	return -ENXIO;
 }
 
-static inline int rpmsg_trysendto(struct rpmsg_endpoint *ept, void *data,
+static inline int rpmsg_trysendto(struct rpmsg_endpoint *ept, const void *data,
 				  int len, u32 dst)
 {
 	/* This shouldn't be possible */
diff --git a/include/linux/rpmsg/mtk_rpmsg.h b/include/linux/rpmsg/mtk_rpmsg.h
index 363b60178040..badcbc89917f 100644
--- a/include/linux/rpmsg/mtk_rpmsg.h
+++ b/include/linux/rpmsg/mtk_rpmsg.h
@@ -25,7 +25,7 @@ struct mtk_rpmsg_info {
 			    ipi_handler_t handler, void *priv);
 	void (*unregister_ipi)(struct platform_device *pdev, u32 id);
 	int (*send_ipi)(struct platform_device *pdev, u32 id,
-			void *buf, unsigned int len, unsigned int wait);
+			const void *buf, unsigned int len, unsigned int wait);
 	int ns_ipi_id;
 };
 
diff --git a/include/linux/soc/qcom/apr.h b/include/linux/soc/qcom/apr.h
index 6e1b1202e818..58fa1df96347 100644
--- a/include/linux/soc/qcom/apr.h
+++ b/include/linux/soc/qcom/apr.h
@@ -191,7 +191,7 @@ int apr_send_pkt(struct apr_device *adev, struct apr_pkt *pkt);
 gpr_port_t *gpr_alloc_port(gpr_device_t *gdev, struct device *dev,
 				gpr_port_cb cb, void *priv);
 void gpr_free_port(gpr_port_t *port);
-int gpr_send_port_pkt(gpr_port_t *port, struct gpr_pkt *pkt);
-int gpr_send_pkt(gpr_device_t *gdev, struct gpr_pkt *pkt);
+int gpr_send_port_pkt(gpr_port_t *port, const struct gpr_pkt *pkt);
+int gpr_send_pkt(gpr_device_t *gdev, const struct gpr_pkt *pkt);
 
 #endif /* __QCOM_APR_H_ */
diff --git a/sound/soc/qcom/qdsp6/audioreach.c b/sound/soc/qcom/qdsp6/audioreach.c
index 0eff5e572573..a13f753eff98 100644
--- a/sound/soc/qcom/qdsp6/audioreach.c
+++ b/sound/soc/qcom/qdsp6/audioreach.c
@@ -579,10 +579,10 @@ EXPORT_SYMBOL_GPL(audioreach_alloc_graph_pkt);
 int audioreach_send_cmd_sync(struct device *dev, gpr_device_t *gdev,
 			     struct gpr_ibasic_rsp_result_t *result, struct mutex *cmd_lock,
 			     gpr_port_t *port, wait_queue_head_t *cmd_wait,
-			     struct gpr_pkt *pkt, uint32_t rsp_opcode)
+			     const struct gpr_pkt *pkt, uint32_t rsp_opcode)
 {
 
-	struct gpr_hdr *hdr = &pkt->hdr;
+	const struct gpr_hdr *hdr = &pkt->hdr;
 	int rc;
 
 	mutex_lock(cmd_lock);
@@ -622,7 +622,7 @@ err:
 }
 EXPORT_SYMBOL_GPL(audioreach_send_cmd_sync);
 
-int audioreach_graph_send_cmd_sync(struct q6apm_graph *graph, struct gpr_pkt *pkt,
+int audioreach_graph_send_cmd_sync(struct q6apm_graph *graph, const struct gpr_pkt *pkt,
 				   uint32_t rsp_opcode)
 {
 
diff --git a/sound/soc/qcom/qdsp6/audioreach.h b/sound/soc/qcom/qdsp6/audioreach.h
index 6ddc287f0fb4..6859770b38a6 100644
--- a/sound/soc/qcom/qdsp6/audioreach.h
+++ b/sound/soc/qcom/qdsp6/audioreach.h
@@ -841,8 +841,8 @@ int audioreach_tplg_init(struct snd_soc_component *component);
 void audioreach_graph_free_buf(struct q6apm_graph *graph);
 int audioreach_send_cmd_sync(struct device *dev, gpr_device_t *gdev, struct gpr_ibasic_rsp_result_t *result,
 			     struct mutex *cmd_lock, gpr_port_t *port, wait_queue_head_t *cmd_wait,
-			     struct gpr_pkt *pkt, uint32_t rsp_opcode);
-int audioreach_graph_send_cmd_sync(struct q6apm_graph *graph, struct gpr_pkt *pkt,
+			     const struct gpr_pkt *pkt, uint32_t rsp_opcode);
+int audioreach_graph_send_cmd_sync(struct q6apm_graph *graph, const struct gpr_pkt *pkt,
 				   uint32_t rsp_opcode);
 int audioreach_set_media_format(struct q6apm_graph *graph,
 				const struct audioreach_module *module,
diff --git a/sound/soc/qcom/qdsp6/q6apm.c b/sound/soc/qcom/qdsp6/q6apm.c
index 3c119a6132e4..2ab378fb5032 100644
--- a/sound/soc/qcom/qdsp6/q6apm.c
+++ b/sound/soc/qcom/qdsp6/q6apm.c
@@ -29,7 +29,8 @@ struct apm_graph_mgmt_cmd {
 
 static struct q6apm *g_apm;
 
-int q6apm_send_cmd_sync(struct q6apm *apm, struct gpr_pkt *pkt, uint32_t rsp_opcode)
+int q6apm_send_cmd_sync(struct q6apm *apm, const struct gpr_pkt *pkt,
+			uint32_t rsp_opcode)
 {
 	gpr_device_t *gdev = apm->gdev;
 
diff --git a/sound/soc/qcom/qdsp6/q6apm.h b/sound/soc/qcom/qdsp6/q6apm.h
index 909fc337fd28..376a36700c53 100644
--- a/sound/soc/qcom/qdsp6/q6apm.h
+++ b/sound/soc/qcom/qdsp6/q6apm.h
@@ -142,7 +142,7 @@ int q6apm_alloc_fragments(struct q6apm_graph *graph,
 int q6apm_free_fragments(struct q6apm_graph *graph, unsigned int dir);
 int q6apm_unmap_memory_fixed_region(struct device *dev, unsigned int graph_id);
 /* Helpers */
-int q6apm_send_cmd_sync(struct q6apm *apm, struct gpr_pkt *pkt,
+int q6apm_send_cmd_sync(struct q6apm *apm, const struct gpr_pkt *pkt,
 			uint32_t rsp_opcode);
 
 /* Callback for graph specific */