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staging: dgnc: remove useless variable 'ch_intr_modem'

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The 'ch_intr_modem' variable was used only for increasing.
So the 'ch_intr_modem' variable is not useful for this driver.

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Daeseok Youn
2016-07-06 15:18:56 +09:00
committed by Greg Kroah-Hartman
parent 572f4f61cd
commit 74c900f5e9
3 changed files with 0 additions and 11 deletions
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9
drivers/staging/dgnc/dgnc_cls.c
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@@ -599,15 +599,6 @@ static inline void cls_parse_isr(struct dgnc_board *brd, uint port)
cls_copy_data_from_queue_to_uart(ch);
}
/* CTS/RTS change of state */
if (isr & UART_IIR_CTSRTS) {
ch->ch_intr_modem++;
/*
* Don't need to do anything, the cls_parse_modem
* below will grab the updated modem signals.
*/
}
/* Parse any modem signal changes */
cls_parse_modem(ch, readb(&ch->ch_cls_uart->msr));
}

1
drivers/staging/dgnc/dgnc_driver.h
View File

@@ -377,7 +377,6 @@ struct channel_t {
ulong ch_xon_sends; /* Count of xons transmitted */
ulong ch_xoff_sends; /* Count of xoffs transmitted */
ulong ch_intr_modem; /* Count of interrupts */
ulong ch_intr_tx; /* Count of interrupts */
ulong ch_intr_rx; /* Count of interrupts */

1
drivers/staging/dgnc/dgnc_neo.c
View File

@@ -450,7 +450,6 @@ static inline void neo_parse_isr(struct dgnc_board *brd, uint port)
* If we get here, this means the hardware is doing auto flow control.
* Check to see whether RTS/DTR or CTS/DSR caused this interrupt.
*/
ch->ch_intr_modem++;
cause = readb(&ch->ch_neo_uart->mcr);
/* Which pin is doing auto flow? RTS or DTR? */
if ((cause & 0x4) == 0) {