4 files changed, 13 insertions, 12 deletions
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_ */