mei: introduce mei_data2slots wrapper
Introduce mei_data2slots wrapper for sake of
readability. This wrapper close up the open code
for computing slots from a message length:
rond up dwords count from payload and header byte size
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 4c1afcf..92d7621 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -267,8 +267,7 @@
+ sizeof(struct hbm_flow_control))) {
return -EMSGSIZE;
}
- *slots -= (sizeof(struct mei_msg_hdr) +
- sizeof(struct hbm_flow_control) + 3) / 4;
+ *slots -= mei_data2slots(sizeof(struct hbm_flow_control));
if (mei_send_flow_control(dev, &dev->iamthif_cl)) {
dev_dbg(&dev->pdev->dev, "iamthif flow control failed\n");
return -EIO;
@@ -302,8 +301,7 @@
{
if ((*slots * sizeof(u32)) >= (sizeof(struct mei_msg_hdr) +
sizeof(struct hbm_client_disconnect_request))) {
- *slots -= (sizeof(struct mei_msg_hdr) +
- sizeof(struct hbm_client_disconnect_request) + 3) / 4;
+ *slots -= mei_data2slots(sizeof(struct hbm_client_disconnect_request));
if (mei_disconnect(dev, cl)) {
cl->status = 0;
@@ -841,8 +839,8 @@
return -EBADMSG;
}
- *slots -= (sizeof(struct mei_msg_hdr) +
- sizeof(struct hbm_flow_control) + 3) / 4;
+ *slots -= mei_data2slots(sizeof(struct hbm_flow_control));
+
if (mei_send_flow_control(dev, cl)) {
cl->status = -ENODEV;
cb_pos->information = 0;
@@ -874,8 +872,7 @@
if ((*slots * sizeof(u32)) >= (sizeof(struct mei_msg_hdr) +
sizeof(struct hbm_client_connect_request))) {
cl->state = MEI_FILE_CONNECTING;
- *slots -= (sizeof(struct mei_msg_hdr) +
- sizeof(struct hbm_client_connect_request) + 3) / 4;
+ *slots -= mei_data2slots(sizeof(struct hbm_client_connect_request));
if (mei_connect(dev, cl)) {
cl->status = -ENODEV;
cb_pos->information = 0;
@@ -931,8 +928,7 @@
cb_pos->information);
dev_dbg(&dev->pdev->dev, "mei_hdr->length =%d\n",
mei_hdr->length);
- *slots -= (sizeof(struct mei_msg_hdr) +
- mei_hdr->length + 3) / 4;
+ *slots -= mei_data2slots(mei_hdr->length);
if (mei_write_message(dev, mei_hdr,
(unsigned char *)
(cb_pos->request_buffer.data +
@@ -959,9 +955,7 @@
(*slots * sizeof(u32)) - sizeof(struct mei_msg_hdr);
mei_hdr->msg_complete = 0;
mei_hdr->reserved = 0;
-
- (*slots) -= (sizeof(struct mei_msg_hdr) +
- mei_hdr->length + 3) / 4;
+ *slots -= mei_data2slots(mei_hdr->length);
if (mei_write_message(dev, mei_hdr,
(unsigned char *)
(cb_pos->request_buffer.data +
@@ -1020,8 +1014,7 @@
mei_hdr->msg_complete = 1;
mei_hdr->reserved = 0;
- *slots -= (sizeof(struct mei_msg_hdr) +
- mei_hdr->length + 3) / 4;
+ *slots -= mei_data2slots(mei_hdr->length);
if (mei_write_message(dev, mei_hdr,
(dev->iamthif_msg_buf +
@@ -1055,8 +1048,7 @@
mei_hdr->msg_complete = 0;
mei_hdr->reserved = 0;
- *slots -= (sizeof(struct mei_msg_hdr) +
- mei_hdr->length + 3) / 4;
+ *slots -= mei_data2slots(mei_hdr->length);
if (mei_write_message(dev, mei_hdr,
(dev->iamthif_msg_buf +
@@ -1266,12 +1258,9 @@
dev->wd_pending = false;
if (dev->wd_timeout)
- *slots -= (sizeof(struct mei_msg_hdr) +
- MEI_START_WD_DATA_SIZE + 3) / 4;
+ *slots -= mei_data2slots(MEI_START_WD_DATA_SIZE);
else
- *slots -= (sizeof(struct mei_msg_hdr) +
- MEI_WD_PARAMS_SIZE + 3) / 4;
-
+ *slots -= mei_data2slots(MEI_START_WD_DATA_SIZE);
}
}
if (dev->stop)