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mei: more prints with client prefix

Browse source 
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>
This commit is contained in:
Alexander Usyskin 2025-07-17 17:11:11 +03:00 • committed by Greg Kroah-Hartman
parent 3fd97f2292
commit 631ae0c010
3 changed files with 34 additions and 37 deletions
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14
drivers/misc/mei/hbm.c
View file

@ -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;
}

2
drivers/misc/mei/interrupt.c
View file

@ -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);
}
}

55
drivers/misc/mei/main.c
View file

@ -256,7 +256,7 @@ copy_buffer:
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;
}
@ -689,7 +686,7 @@ 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;
}
@ -697,10 +694,10 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data)
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;
}
@ -729,7 +726,7 @@ 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;
}
@ -737,10 +734,10 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data)
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;
}
@ -748,15 +745,15 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data)
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;