Merge tag 'rpmsg-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc

Pull rpmsg updates from Bjorn Andersson:
 "This contains updates to make the rpmsg sample driver more useful,
  fixes the naming of GLINK devices to avoid naming collisions and a few
  minor bug fixes. It also updates MAINTAINERS to reflect the move to
  kernel.org"

* tag 'rpmsg-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
  rpmsg: glink-smem: Name the edge based on parent remoteproc
  rpmsg: glink: Use struct_size() helper
  rpmsg: virtio_rpmsg_bus: replace "%p" with "%pK"
  MAINTAINERS: rpmsg: fix git tree location
  rpmsg: core: fix comments
  samples/rpmsg: Introduce a module parameter for message count
  samples/rpmsg: Replace print_hex_dump() with print_hex_dump_debug()

Author: torvalds

MAINTAINERS

@@ -13761,7 +13761,7 @@ REMOTE PROCESSOR MESSAGING (RPMSG) SUBSYSTEM
 M:	Ohad Ben-Cohen <[email protected]>
 M:	Bjorn Andersson <[email protected]>
 L:	[email protected]
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc.git rpmsg-next
 S:	Maintained
 F:	drivers/rpmsg/
 F:	Documentation/rpmsg.txt

drivers/rpmsg/qcom_glink_native.c

@@ -892,7 +892,7 @@ static void qcom_glink_handle_intent(struct qcom_glink *glink,
 		struct intent_pair intents[];
 	} __packed * msg;
 
-	const size_t msglen = sizeof(*msg) + sizeof(struct intent_pair) * count;
+	const size_t msglen = struct_size(msg, intents, count);
 	int ret;
 	int i;
 	unsigned long flags;

drivers/rpmsg/qcom_glink_smem.c

@@ -201,7 +201,7 @@ struct qcom_glink *qcom_glink_smem_register(struct device *parent,
 	dev->parent = parent;
 	dev->of_node = node;
 	dev->release = qcom_glink_smem_release;
-	dev_set_name(dev, "%pOFn:%pOFn", node->parent, node);
+	dev_set_name(dev, "%s:%pOFn", dev_name(parent->parent), node);
 	ret = device_register(dev);
 	if (ret) {
 		pr_err("failed to register glink edge\n");

drivers/rpmsg/rpmsg_core.c

@@ -46,7 +46,7 @@
  * equals to the src address of their rpmsg channel), the driver's handler
  * is invoked to process it.
  *
- * That said, more complicated drivers might do need to allocate
+ * That said, more complicated drivers might need to allocate
  * additional rpmsg addresses, and bind them to different rx callbacks.
  * To accomplish that, those drivers need to call this function.
  *
@@ -177,7 +177,7 @@ int rpmsg_send_offchannel(struct rpmsg_endpoint *ept, u32 src, u32 dst,
 EXPORT_SYMBOL(rpmsg_send_offchannel);
 
 /**
- * rpmsg_send() - send a message across to the remote processor
+ * rpmsg_trysend() - send a message across to the remote processor
  * @ept: the rpmsg endpoint
  * @data: payload of message
  * @len: length of payload
@@ -205,7 +205,7 @@ int rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len)
 EXPORT_SYMBOL(rpmsg_trysend);
 
 /**
- * rpmsg_sendto() - send a message across to the remote processor, specify dst
+ * rpmsg_trysendto() - send a message across to the remote processor, specify dst
  * @ept: the rpmsg endpoint
  * @data: payload of message
  * @len: length of payload
@@ -253,7 +253,7 @@ __poll_t rpmsg_poll(struct rpmsg_endpoint *ept, struct file *filp,
 EXPORT_SYMBOL(rpmsg_poll);
 
 /**
- * rpmsg_send_offchannel() - send a message using explicit src/dst addresses
+ * rpmsg_trysend_offchannel() - send a message using explicit src/dst addresses
  * @ept: the rpmsg endpoint
  * @src: source address
  * @dst: destination address

drivers/rpmsg/rpmsg_internal.h

@@ -20,7 +20,7 @@
 
 /**
  * struct rpmsg_device_ops - indirection table for the rpmsg_device operations
- * @create_ept:		create backend-specific endpoint, requried
+ * @create_ept:		create backend-specific endpoint, required
  * @announce_create:	announce presence of new channel, optional
  * @announce_destroy:	announce destruction of channel, optional
  *
@@ -39,13 +39,14 @@ struct rpmsg_device_ops {
 
 /**
  * struct rpmsg_endpoint_ops - indirection table for rpmsg_endpoint operations
- * @destroy_ept:	destroy the given endpoint, required
+ * @destroy_ept:	see @rpmsg_destroy_ept(), required
  * @send:		see @rpmsg_send(), required
  * @sendto:		see @rpmsg_sendto(), optional
  * @send_offchannel:	see @rpmsg_send_offchannel(), optional
  * @trysend:		see @rpmsg_trysend(), required
  * @trysendto:		see @rpmsg_trysendto(), optional
  * @trysend_offchannel:	see @rpmsg_trysend_offchannel(), optional
+ * @poll:		see @rpmsg_poll(), optional
  *
  * Indirection table for the operations that a rpmsg backend should implement.
  * In addition to @destroy_ept, the backend must at least implement @send and

drivers/rpmsg/virtio_rpmsg_bus.c

@@ -920,7 +920,7 @@ static int rpmsg_probe(struct virtio_device *vdev)
 		goto vqs_del;
 	}
 
-	dev_dbg(&vdev->dev, "buffers: va %p, dma %pad\n",
+	dev_dbg(&vdev->dev, "buffers: va %pK, dma %pad\n",
 		bufs_va, &vrp->bufs_dma);
 
 	/* half of the buffers is dedicated for RX */

samples/rpmsg/rpmsg_client_sample.c

@@ -14,7 +14,9 @@
 #include <linux/rpmsg.h>
 
 #define MSG		"hello world!"
-#define MSG_LIMIT	100
+
+static int count = 100;
+module_param(count, int, 0644);
 
 struct instance_data {
 	int rx_count;
@@ -29,11 +31,11 @@ static int rpmsg_sample_cb(struct rpmsg_device *rpdev, void *data, int len,
 	dev_info(&rpdev->dev, "incoming msg %d (src: 0x%x)\n",
 		 ++idata->rx_count, src);
 
-	print_hex_dump(KERN_DEBUG, __func__, DUMP_PREFIX_NONE, 16, 1,
-		       data, len,  true);
+	print_hex_dump_debug(__func__, DUMP_PREFIX_NONE, 16, 1, data, len,
+			     true);
 
 	/* samples should not live forever */
-	if (idata->rx_count >= MSG_LIMIT) {
+	if (idata->rx_count >= count) {
 		dev_info(&rpdev->dev, "goodbye!\n");
 		return 0;
 	}