On Wed, 2019-07-03 at 19:49 +0200, Greg KH wrote: > > + > > + if (tx_sts & UART_SDMA0_INT) { > > + ast_uart_sdma_write(sdma, UART_SDMA0_INT, UART_TX_SDMA_ISR); > > + ast_sdma_bufffdone(&(sdma->dma_ch->tx_dma_info[0])); > > + } else if (tx_sts & UART_SDMA1_INT) { > > + ast_uart_sdma_write(sdma, UART_SDMA1_INT, UART_TX_SDMA_ISR); > > + ast_sdma_bufffdone(&(sdma->dma_ch->tx_dma_info[1])); > > + } else if (tx_sts & UART_SDMA2_INT) { > > + ast_uart_sdma_write(sdma, UART_SDMA2_INT, UART_TX_SDMA_ISR); > > + ast_sdma_bufffdone(&(sdma->dma_ch->tx_dma_info[2])); > > + } else if (tx_sts & UART_SDMA3_INT) { > > + ast_uart_sdma_write(sdma, UART_SDMA3_INT, UART_TX_SDMA_ISR); > > + ast_sdma_bufffdone(&(sdma->dma_ch->tx_dma_info[3])); > > + } else if (tx_sts & UART_SDMA4_INT) { > > + ast_uart_sdma_write(sdma, UART_SDMA4_INT, UART_TX_SDMA_ISR); > > + ast_sdma_bufffdone(&(sdma->dma_ch->tx_dma_info[4])); > > + } else if (tx_sts & UART_SDMA5_INT) { > > + ast_uart_sdma_write(sdma, UART_SDMA5_INT, UART_TX_SDMA_ISR); > > + ast_sdma_bufffdone(&(sdma->dma_ch->tx_dma_info[5])); > > + } else if (tx_sts & UART_SDMA6_INT) { > > + ast_uart_sdma_write(sdma, UART_SDMA6_INT, UART_TX_SDMA_ISR); > > + ast_sdma_bufffdone(&(sdma->dma_ch->tx_dma_info[6])); > > + } else if (tx_sts & UART_SDMA7_INT) { > > + ast_uart_sdma_write(sdma, UART_SDMA7_INT, UART_TX_SDMA_ISR); > > + ast_sdma_bufffdone(&(sdma->dma_ch->tx_dma_info[7])); > > + } else if (tx_sts & UART_SDMA8_INT) { > > + ast_uart_sdma_write(sdma, UART_SDMA8_INT, UART_TX_SDMA_ISR); > > + ast_sdma_bufffdone(&(sdma->dma_ch->tx_dma_info[8])); > > + } else if (tx_sts & UART_SDMA9_INT) { > > + ast_uart_sdma_write(sdma, UART_SDMA9_INT, UART_TX_SDMA_ISR); > > + ast_sdma_bufffdone(&(sdma->dma_ch->tx_dma_info[9])); > > + } else if (tx_sts & UART_SDMA10_INT) { > > + ast_uart_sdma_write(sdma, UART_SDMA10_INT, UART_TX_SDMA_ISR); > > + ast_sdma_bufffdone(&(sdma->dma_ch->tx_dma_info[10])); > > + } else if (tx_sts & UART_SDMA11_INT) { > > + ast_uart_sdma_write(sdma, UART_SDMA11_INT, UART_TX_SDMA_ISR); > > + ast_sdma_bufffdone(&(sdma->dma_ch->tx_dma_info[11])); > > + } else { > > + } Also this should be a for () loop... Cheers, Ben.