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mxser: cleanup mxser_rs_break
mxser_rs_break now does all inb, outb, & or | in a single statement. The code is hard to follow, so make it more readable by doing one-line = one-statement. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20210618061516.662-56-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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parent
987a4cfee5
commit
5990843328
1 changed files with 6 additions and 4 deletions
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@ -1553,15 +1553,17 @@ static int mxser_rs_break(struct tty_struct *tty, int break_state)
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{
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{
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struct mxser_port *info = tty->driver_data;
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struct mxser_port *info = tty->driver_data;
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unsigned long flags;
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unsigned long flags;
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u8 lcr;
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spin_lock_irqsave(&info->slock, flags);
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spin_lock_irqsave(&info->slock, flags);
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lcr = inb(info->ioaddr + UART_LCR);
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if (break_state == -1)
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if (break_state == -1)
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outb(inb(info->ioaddr + UART_LCR) | UART_LCR_SBC,
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lcr |= UART_LCR_SBC;
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info->ioaddr + UART_LCR);
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else
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else
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outb(inb(info->ioaddr + UART_LCR) & ~UART_LCR_SBC,
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lcr &= ~UART_LCR_SBC;
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info->ioaddr + UART_LCR);
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outb(lcr, info->ioaddr + UART_LCR);
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spin_unlock_irqrestore(&info->slock, flags);
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spin_unlock_irqrestore(&info->slock, flags);
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return 0;
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return 0;
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}
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}
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