static size_t qcom_smd_channel_peek()

in qcom_smd.c [497:523]

• 23 lines of code
• 3 McCabe index (conditional complexity)

static size_t qcom_smd_channel_peek(struct qcom_smd_channel *channel,
				    void *buf, size_t count)
{
	bool word_aligned;
	unsigned tail;
	size_t len;

	word_aligned = channel->info_word;
	tail = GET_RX_CHANNEL_INFO(channel, tail);

	len = min_t(size_t, count, channel->fifo_size - tail);
	if (len) {
		smd_copy_from_fifo(buf,
				   channel->rx_fifo + tail,
				   len,
				   word_aligned);
	}

	if (len != count) {
		smd_copy_from_fifo(buf + len,
				   channel->rx_fifo,
				   count - len,
				   word_aligned);
	}

	return count;
}