MBOX_MAX_MSG_LEN
if (count > MBOX_MAX_MSG_LEN) {
count, MBOX_MAX_MSG_LEN);
message = kzalloc(MBOX_MAX_MSG_LEN, GFP_KERNEL);
tdev->message, MBOX_MAX_MSG_LEN);
memset(tdev->rx_buffer, 0, MBOX_MAX_MSG_LEN);
(MBOX_MAX_MSG_LEN / MBOX_BYTES_PER_LINE))
memcpy_fromio(tdev->rx_buffer, tdev->rx_mmio, MBOX_MAX_MSG_LEN);
tdev->rx_buffer, MBOX_MAX_MSG_LEN);
message, MBOX_MAX_MSG_LEN);
memcpy(tdev->rx_buffer, message, MBOX_MAX_MSG_LEN);
memcpy_toio(tdev->tx_mmio, tdev->message, MBOX_MAX_MSG_LEN);
memcpy_toio(tdev->tx_mmio, message, MBOX_MAX_MSG_LEN);
MBOX_MAX_MSG_LEN, GFP_KERNEL);