MEI_NFC_HEADER_SIZE
mei_buf = kzalloc(length + MEI_NFC_HEADER_SIZE, GFP_KERNEL);
memcpy(mei_buf + MEI_NFC_HEADER_SIZE, buf, length);
err = mei_cldev_send(phy->cldev, mei_buf, length + MEI_NFC_HEADER_SIZE);
if (reply_size < MEI_NFC_HEADER_SIZE) {
skb_pull(skb, MEI_NFC_HEADER_SIZE);
#define MEI_NFC_MAX_READ (MEI_NFC_HEADER_SIZE + MEI_NFC_MAX_HCI_PAYLOAD)
MEI_NFC_HEADER_SIZE, 0, MEI_NFC_MAX_HCI_PAYLOAD,
MEI_NFC_HEADER_SIZE, 0, MEI_NFC_MAX_HCI_PAYLOAD,