yamt commented on a change in pull request #2222:
URL: https://github.com/apache/incubator-nuttx/pull/2222#discussion_r523297890
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File path: arch/arm/src/lpc214x/lpc214x_serial.c
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@@ -89,7 +90,7 @@ static int up_attach(struct uart_dev_s *dev);
static void up_detach(struct uart_dev_s *dev);
static int up_interrupt(int irq, void *context, void *arg);
static int up_ioctl(struct file *filep, int cmd, unsigned long arg);
-static int up_receive(struct uart_dev_s *dev, uint32_t *status);
+static int up_receive(struct uart_dev_s *dev, unsigned int *status);
Review comment:
i think it's common for compilers and lint-like tools to warn on
non-portable code, even if those types happens to have the same width for the
current target.
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