Make ring buffer increment easier to read

crowbx.c

@@ -561,8 +561,8 @@ static struct {
 void uart_buffer_push(uint8_t x) {
 	ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
 		uart_buffer.data[uart_buffer.tail] = x;
-		uart_buffer.tail =
-		    (uart_buffer.tail + 1) % ARRAY_SIZE(uart_buffer.data);
+		uart_buffer.tail++;
+		uart_buffer.tail %= ARRAY_SIZE(uart_buffer.data);
 	}
 }
 
@@ -573,8 +573,8 @@ uint8_t uart_buffer_pop(uint8_t *x) {
 		}
 
 		*x = uart_buffer.data[uart_buffer.head];
-		uart_buffer.head =
-		    (uart_buffer.head + 1) % ARRAY_SIZE(uart_buffer.data);
+		uart_buffer.head++;
+		uart_buffer.head %= ARRAY_SIZE(uart_buffer.data);
 	}
 
 	return true;