Commit 80f510f5 authored by Liu Xiang's avatar Liu Xiang Committed by Greg Kroah-Hartman
Browse files

tty: serial: linflexuart: Remove unnecessary '|' operation and add error count 



The '|' operation of status in linflex_rxint is unnecessary,
so it can be removed.

Signed-off-by: default avatarLiu Xiang <liuxiang_1999@126.com>
Link: https://lore.kernel.org/r/1604065391-3790-1-git-send-email-liuxiang_1999@126.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent cbd90e74

drivers/tty/serial/fsl_linflexuart.c

+9 −10
Original line number Diff line number Diff line
@@ -252,23 +252,22 @@ static irqreturn_t linflex_rxint(int irq, void *dev_id) 
		flg = TTY_NORMAL;

		sport->icount.rx++;



		if (status & (LINFLEXD_UARTSR_BOF | LINFLEXD_UARTSR_SZF |

			      LINFLEXD_UARTSR_FEF | LINFLEXD_UARTSR_PE)) {

			if (status & LINFLEXD_UARTSR_SZF)

				status |= LINFLEXD_UARTSR_SZF;

		if (status & (LINFLEXD_UARTSR_BOF | LINFLEXD_UARTSR_FEF |

				LINFLEXD_UARTSR_PE)) {

			if (status & LINFLEXD_UARTSR_BOF)

				status |= LINFLEXD_UARTSR_BOF;

				sport->icount.overrun++;

			if (status & LINFLEXD_UARTSR_FEF) {

				if (!rx)

				if (!rx) {

					brk = true;

				status |= LINFLEXD_UARTSR_FEF;

					sport->icount.brk++;

				} else

					sport->icount.frame++;

			}

			if (status & LINFLEXD_UARTSR_PE)

				status |=  LINFLEXD_UARTSR_PE;

				sport->icount.parity++;

		}



		writel(status | LINFLEXD_UARTSR_RMB | LINFLEXD_UARTSR_DRFRFE,

		       sport->membase + UARTSR);

		writel(status, sport->membase + UARTSR);

		status = readl(sport->membase + UARTSR);



		if (brk) {