mei: more prints with client prefix

JIRA: https://issues.redhat.com/browse/RHEL-113185

commit 631ae0c
Author: Alexander Usyskin <alexander.usyskin@intel.com>
Date:   Thu Jul 17 17:11:11 2025 +0300

    mei: more prints with client prefix

    Use client-aware print macro instead of usual device print in more
    places to expand debug-ability.
    The client-aware print macro prefixes the usual device print with
    current connection endpoints.

    Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
    Link: https://lore.kernel.org/r/20250717141112.1696482-3-alexander.usyskin@intel.com
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Steve Best <sbest@redhat.com>

Author: sfbest

drivers/misc/mei/hbm.c

@@ -510,7 +510,7 @@ int mei_hbm_cl_notify_req(struct mei_device *dev,
 
 	ret = mei_hbm_write_message(dev, &mei_hdr, &req);
 	if (ret)
-		dev_err(dev->dev, "notify request failed: ret = %d\n", ret);
+		cl_err(dev, cl, "notify request failed: ret = %d\n", ret);
 
 	return ret;
 }
@@ -626,7 +626,7 @@ int mei_hbm_cl_dma_map_req(struct mei_device *dev, struct mei_cl *cl)
 
 	ret = mei_hbm_write_message(dev, &mei_hdr, &req);
 	if (ret)
-		dev_err(dev->dev, "dma map request failed: ret = %d\n", ret);
+		cl_err(dev, cl, "dma map request failed: ret = %d\n", ret);
 
 	return ret;
 }
@@ -654,7 +654,7 @@ int mei_hbm_cl_dma_unmap_req(struct mei_device *dev, struct mei_cl *cl)
 
 	ret = mei_hbm_write_message(dev, &mei_hdr, &req);
 	if (ret)
-		dev_err(dev->dev, "dma unmap request failed: ret = %d\n", ret);
+		cl_err(dev, cl, "dma unmap request failed: ret = %d\n", ret);
 
 	return ret;
 }
@@ -679,10 +679,10 @@ static void mei_hbm_cl_dma_map_res(struct mei_device *dev,
 		return;
 
 	if (res->status) {
-		dev_err(dev->dev, "cl dma map failed %d\n", res->status);
+		cl_err(dev, cl, "cl dma map failed %d\n", res->status);
 		cl->status = -EFAULT;
 	} else {
-		dev_dbg(dev->dev, "cl dma map succeeded\n");
+		cl_dbg(dev, cl, "cl dma map succeeded\n");
 		cl->dma_mapped = 1;
 		cl->status = 0;
 	}
@@ -709,10 +709,10 @@ static void mei_hbm_cl_dma_unmap_res(struct mei_device *dev,
 		return;
 
 	if (res->status) {
-		dev_err(dev->dev, "cl dma unmap failed %d\n", res->status);
+		cl_err(dev, cl, "cl dma unmap failed %d\n", res->status);
 		cl->status = -EFAULT;
 	} else {
-		dev_dbg(dev->dev, "cl dma unmap succeeded\n");
+		cl_dbg(dev, cl, "cl dma unmap succeeded\n");
 		cl->dma_mapped = 0;
 		cl->status = 0;
 	}

drivers/misc/mei/interrupt.c

@@ -35,7 +35,7 @@ void mei_irq_compl_handler(struct mei_device *dev, struct list_head *cmpl_list)
 		cl = cb->cl;
 		list_del_init(&cb->list);
 
-		dev_dbg(dev->dev, "completing call back.\n");
+		cl_dbg(dev, cl, "completing call back.\n");
 		mei_cl_complete(cl, cb);
 	}
 }

drivers/misc/mei/main.c

@@ -256,7 +256,7 @@ static ssize_t mei_read(struct file *file, char __user *ubuf,
 	length = min_t(size_t, length, cb->buf_idx - *offset);
 
 	if (copy_to_user(ubuf, cb->buf.data + *offset, length)) {
-		dev_dbg(dev->dev, "failed to copy data to userland\n");
+		cl_dbg(dev, cl, "failed to copy data to userland\n");
 		rets = -EFAULT;
 		goto free;
 	}
@@ -379,7 +379,7 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 
 	rets = copy_from_user(cb->buf.data, ubuf, length);
 	if (rets) {
-		dev_dbg(dev->dev, "failed to copy data from userland\n");
+		cl_dbg(dev, cl, "failed to copy data from userland\n");
 		rets = -EFAULT;
 		mei_io_cb_free(cb);
 		goto out;
@@ -421,7 +421,7 @@ static int mei_ioctl_connect_client(struct file *file,
 	/* find ME client we're trying to connect to */
 	me_cl = mei_me_cl_by_uuid(dev, in_client_uuid);
 	if (!me_cl) {
-		dev_dbg(dev->dev, "Cannot connect to FW Client UUID = %pUl\n",
+		cl_dbg(dev, cl, "Cannot connect to FW Client UUID = %pUl\n",
 			in_client_uuid);
 		rets = -ENOTTY;
 		goto end;
@@ -431,24 +431,21 @@ static int mei_ioctl_connect_client(struct file *file,
 		bool forbidden = dev->override_fixed_address ?
 			 !dev->allow_fixed_address : !dev->hbm_f_fa_supported;
 		if (forbidden) {
-			dev_dbg(dev->dev, "Connection forbidden to FW Client UUID = %pUl\n",
+			cl_dbg(dev, cl, "Connection forbidden to FW Client UUID = %pUl\n",
 				in_client_uuid);
 			rets = -ENOTTY;
 			goto end;
 		}
 	}
 
-	dev_dbg(dev->dev, "Connect to FW Client ID = %d\n",
-			me_cl->client_id);
-	dev_dbg(dev->dev, "FW Client - Protocol Version = %d\n",
-			me_cl->props.protocol_version);
-	dev_dbg(dev->dev, "FW Client - Max Msg Len = %d\n",
-			me_cl->props.max_msg_length);
+	cl_dbg(dev, cl, "Connect to FW Client ID = %d\n", me_cl->client_id);
+	cl_dbg(dev, cl, "FW Client - Protocol Version = %d\n", me_cl->props.protocol_version);
+	cl_dbg(dev, cl, "FW Client - Max Msg Len = %d\n", me_cl->props.max_msg_length);
 
 	/* prepare the output buffer */
 	client->max_msg_length = me_cl->props.max_msg_length;
 	client->protocol_version = me_cl->props.protocol_version;
-	dev_dbg(dev->dev, "Can connect?\n");
+	cl_dbg(dev, cl, "Can connect?\n");
 
 	rets = mei_cl_connect(cl, me_cl, file);
 
@@ -515,19 +512,19 @@ static int mei_ioctl_connect_vtag(struct file *file,
 	cl = file->private_data;
 	dev = cl->dev;
 
-	dev_dbg(dev->dev, "FW Client %pUl vtag %d\n", in_client_uuid, vtag);
+	cl_dbg(dev, cl, "FW Client %pUl vtag %d\n", in_client_uuid, vtag);
 
 	switch (cl->state) {
 	case MEI_FILE_DISCONNECTED:
 		if (mei_cl_vtag_by_fp(cl, file) != vtag) {
-			dev_err(dev->dev, "reconnect with different vtag\n");
+			cl_err(dev, cl, "reconnect with different vtag\n");
 			return -EINVAL;
 		}
 		break;
 	case MEI_FILE_INITIALIZING:
 		/* malicious connect from another thread may push vtag */
 		if (!IS_ERR(mei_cl_fp_by_vtag(cl, vtag))) {
-			dev_err(dev->dev, "vtag already filled\n");
+			cl_err(dev, cl, "vtag already filled\n");
 			return -EINVAL;
 		}
 
@@ -546,7 +543,7 @@ static int mei_ioctl_connect_vtag(struct file *file,
 				continue;
 
 			/* replace cl with acquired one */
-			dev_dbg(dev->dev, "replacing with existing cl\n");
+			cl_dbg(dev, cl, "replacing with existing cl\n");
 			mei_cl_unlink(cl);
 			kfree(cl);
 			file->private_data = pos;
@@ -656,7 +653,7 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data)
 
 	dev = cl->dev;
 
-	dev_dbg(dev->dev, "IOCTL cmd = 0x%x", cmd);
+	cl_dbg(dev, cl, "IOCTL cmd = 0x%x", cmd);
 
 	mutex_lock(&dev->device_lock);
 	if (dev->dev_state != MEI_DEV_ENABLED) {
@@ -666,9 +663,9 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data)
 
 	switch (cmd) {
 	case IOCTL_MEI_CONNECT_CLIENT:
-		dev_dbg(dev->dev, ": IOCTL_MEI_CONNECT_CLIENT.\n");
+		cl_dbg(dev, cl, "IOCTL_MEI_CONNECT_CLIENT\n");
 		if (copy_from_user(&conn, (char __user *)data, sizeof(conn))) {
-			dev_dbg(dev->dev, "failed to copy data from userland\n");
+			cl_dbg(dev, cl, "failed to copy data from userland\n");
 			rets = -EFAULT;
 			goto out;
 		}
@@ -689,18 +686,18 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data)
 
 		/* if all is ok, copying the data back to user. */
 		if (copy_to_user((char __user *)data, &conn, sizeof(conn))) {
-			dev_dbg(dev->dev, "failed to copy data to userland\n");
+			cl_dbg(dev, cl, "failed to copy data to userland\n");
 			rets = -EFAULT;
 			goto out;
 		}
 
 		break;
 
 	case IOCTL_MEI_CONNECT_CLIENT_VTAG:
-		dev_dbg(dev->dev, "IOCTL_MEI_CONNECT_CLIENT_VTAG\n");
+		cl_dbg(dev, cl, "IOCTL_MEI_CONNECT_CLIENT_VTAG\n");
 		if (copy_from_user(&conn_vtag, (char __user *)data,
 				   sizeof(conn_vtag))) {
-			dev_dbg(dev->dev, "failed to copy data from userland\n");
+			cl_dbg(dev, cl, "failed to copy data from userland\n");
 			rets = -EFAULT;
 			goto out;
 		}
@@ -711,13 +708,13 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data)
 
 		rets = mei_vt_support_check(dev, cl_uuid);
 		if (rets == -EOPNOTSUPP)
-			dev_dbg(dev->dev, "FW Client %pUl does not support vtags\n",
+			cl_dbg(dev, cl, "FW Client %pUl does not support vtags\n",
 				cl_uuid);
 		if (rets)
 			goto out;
 
 		if (!vtag) {
-			dev_dbg(dev->dev, "vtag can't be zero\n");
+			cl_dbg(dev, cl, "vtag can't be zero\n");
 			rets = -EINVAL;
 			goto out;
 		}
@@ -729,34 +726,34 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data)
 		/* if all is ok, copying the data back to user. */
 		if (copy_to_user((char __user *)data, &conn_vtag,
 				 sizeof(conn_vtag))) {
-			dev_dbg(dev->dev, "failed to copy data to userland\n");
+			cl_dbg(dev, cl, "failed to copy data to userland\n");
 			rets = -EFAULT;
 			goto out;
 		}
 
 		break;
 
 	case IOCTL_MEI_NOTIFY_SET:
-		dev_dbg(dev->dev, ": IOCTL_MEI_NOTIFY_SET.\n");
+		cl_dbg(dev, cl, "IOCTL_MEI_NOTIFY_SET\n");
 		if (copy_from_user(&notify_req,
 				   (char __user *)data, sizeof(notify_req))) {
-			dev_dbg(dev->dev, "failed to copy data from userland\n");
+			cl_dbg(dev, cl, "failed to copy data from userland\n");
 			rets = -EFAULT;
 			goto out;
 		}
 		rets = mei_ioctl_client_notify_request(file, notify_req);
 		break;
 
 	case IOCTL_MEI_NOTIFY_GET:
-		dev_dbg(dev->dev, ": IOCTL_MEI_NOTIFY_GET.\n");
+		cl_dbg(dev, cl, "IOCTL_MEI_NOTIFY_GET\n");
 		rets = mei_ioctl_client_notify_get(file, &notify_get);
 		if (rets)
 			goto out;
 
-		dev_dbg(dev->dev, "copy connect data to user\n");
+		cl_dbg(dev, cl, "copy connect data to user\n");
 		if (copy_to_user((char __user *)data,
 				&notify_get, sizeof(notify_get))) {
-			dev_dbg(dev->dev, "failed to copy data to userland\n");
+			cl_dbg(dev, cl, "failed to copy data to userland\n");
 			rets = -EFAULT;
 			goto out;