<p><b>@benemorius</b> commented on this pull request.</p>

<hr>

<p>In <a href="https://github.com/RIOT-OS/RIOT/pull/12278#discussion_r326876001">cpu/efm32/periph/uart.c</a>:</p>
<pre style='color:#555'>> @@ -131,15 +129,16 @@ int uart_init(uart_t dev, uint32_t baudrate, uart_rx_cb_t rx_cb, void *arg)
 
         /* enable receive interrupt */
         LEUART_IntEnable(leuart, LEUART_IEN_RXDATAV);
</pre>
<p>What I did is leave the interrupt always enabled in the peripheral and put only an if-block around enabling the interrupt in the NVIC. I don't think there would be a functional change but I'm mostly indifferent about it and I'll add if-blocks if you disagree.</p>

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