[RFC PATCH 52/78] hw/char: add fallthrough pseudo-keyword

[Emmanouil Pitsidianakis]

In preparation of raising -Wimplicit-fallthrough to 5, replace all
fall-through comments with the fallthrough attribute pseudo-keyword.

Signed-off-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
---
 hw/char/nrf51_uart.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/char/nrf51_uart.c b/hw/char/nrf51_uart.c
index dfe2276d71..3e2b35c7ad 100644
--- a/hw/char/nrf51_uart.c
+++ b/hw/char/nrf51_uart.c
@@ -113,79 +113,79 @@ static void uart_cancel_transmit(NRF51UARTState *s)
 static void uart_write(void *opaque, hwaddr addr,
                        uint64_t value, unsigned int size)
 {
     NRF51UARTState *s = NRF51_UART(opaque);
 
     trace_nrf51_uart_write(addr, value, size);
 
     if (!s->enabled && (addr != A_UART_ENABLE)) {
         return;
     }
 
     switch (addr) {
     case A_UART_TXD:
         if (!s->pending_tx_byte && s->tx_started) {
             s->reg[R_UART_TXD] = value;
             s->pending_tx_byte = true;
             uart_transmit(NULL, G_IO_OUT, s);
         }
         break;
     case A_UART_INTEN:
         s->reg[R_UART_INTEN] = value;
         break;
     case A_UART_INTENSET:
         s->reg[R_UART_INTEN] |= value;
         break;
     case A_UART_INTENCLR:
         s->reg[R_UART_INTEN] &= ~value;
         break;
     case A_UART_TXDRDY ... A_UART_RXTO:
         s->reg[addr / 4] = value;
         break;
     case A_UART_ERRORSRC:
         s->reg[addr / 4] &= ~value;
         break;
     case A_UART_RXD:
         break;
     case A_UART_RXDRDY:
         if (value == 0) {
             s->reg[R_UART_RXDRDY] = 0;
         }
         break;
     case A_UART_STARTTX:
         if (value == 1) {
             s->tx_started = true;
         }
         break;
     case A_UART_STARTRX:
         if (value == 1) {
             s->rx_started = true;
         }
         break;
     case A_UART_ENABLE:
         if (value) {
             if (value == 4) {
                 s->enabled = true;
             }
             break;
         }
         s->enabled = false;
         value = 1;
-        /* fall through */
+        fallthrough;
     case A_UART_SUSPEND:
     case A_UART_STOPTX:
         if (value == 1) {
             s->tx_started = false;
         }
-        /* fall through */
+        fallthrough;
     case A_UART_STOPRX:
         if (addr != A_UART_STOPTX && value == 1) {
             s->rx_started = false;
             s->reg[R_UART_RXTO] = 1;
         }
         break;
     default:
         s->reg[addr / 4] = value;
         break;
     }
     nrf51_uart_update_irq(s);
 }
-- 
2.39.2