davids5 commented on a change in pull request #3618:
URL: https://github.com/apache/incubator-nuttx/pull/3618#discussion_r622293887
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File path: arch/arm/src/stm32h7/stm32_serial.c
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@@ -3375,10 +3375,7 @@ static void up_dma_txavailable(struct uart_dev_s *dev)
/* Only send when the DMA is idle */
- if (resid != 0)
Review comment:
Ok then how about removing the residue code?
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