RSI_COEX_Q_INVALID
if (coex_q == RSI_COEX_Q_INVALID) {
enum rsi_coex_queues q_num = RSI_COEX_Q_INVALID;
enum rsi_coex_queues coex_q = RSI_COEX_Q_INVALID;
} while (coex_q != RSI_COEX_Q_INVALID);
return RSI_COEX_Q_INVALID;