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tty: jsm_tty, make char+error handling readable
The code for char+error handling in jsm_input was complete mess of letters. Introduce 3 new local variables and use them with care. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20210302062214.29627-21-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -603,18 +603,22 @@ void jsm_input(struct jsm_channel *ch)
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if (I_PARMRK(tp) || I_BRKINT(tp) || I_INPCK(tp)) {
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for (i = 0; i < s; i++) {
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u8 chr = ch->ch_rqueue[tail + i];
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u8 error = ch->ch_equeue[tail + i];
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char flag = TTY_NORMAL;
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/*
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* Give the Linux ld the flags in the
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* format it likes.
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* Give the Linux ld the flags in the format it
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* likes.
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*/
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if (*(ch->ch_equeue + tail + i) & UART_LSR_BI)
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tty_insert_flip_char(port, *(ch->ch_rqueue +tail +i), TTY_BREAK);
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else if (*(ch->ch_equeue +tail +i) & UART_LSR_PE)
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tty_insert_flip_char(port, *(ch->ch_rqueue +tail +i), TTY_PARITY);
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else if (*(ch->ch_equeue +tail +i) & UART_LSR_FE)
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tty_insert_flip_char(port, *(ch->ch_rqueue +tail +i), TTY_FRAME);
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else
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tty_insert_flip_char(port, *(ch->ch_rqueue +tail +i), TTY_NORMAL);
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if (error & UART_LSR_BI)
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flag = TTY_BREAK;
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else if (error & UART_LSR_PE)
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flag = TTY_PARITY;
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else if (error & UART_LSR_FE)
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flag = TTY_FRAME;
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tty_insert_flip_char(port, chr, flag);
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}
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} else {
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tty_insert_flip_string(port, ch->ch_rqueue + tail, s);
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