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Commit 2c7d924e authored by Daeseok Youn's avatar Daeseok Youn Committed by Greg Kroah-Hartman
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staging: dgnc: remove useless variable 'ch_intr_tx' 



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

Signed-off-by: default avatarDaeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 74c900f5

drivers/staging/dgnc/dgnc_cls.c

+0 −1
Original line number Diff line number Diff line
@@ -594,7 +594,6 @@ static inline void cls_parse_isr(struct dgnc_board *brd, uint port) 
			/* Transfer data (if any) from Write Queue -> UART. */

			spin_lock_irqsave(&ch->ch_lock, flags);

			ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);

			ch->ch_intr_tx++;

			spin_unlock_irqrestore(&ch->ch_lock, flags);

			cls_copy_data_from_queue_to_uart(ch);

		}

drivers/staging/dgnc/dgnc_driver.h

+0 −1
Original line number Diff line number Diff line
@@ -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_tx;	/* Count of interrupts */

	ulong		ch_intr_rx;	/* Count of interrupts */



	/* /proc/<board>/<channel> entries */

drivers/staging/dgnc/dgnc_neo.c

+0 −3
Original line number Diff line number Diff line
@@ -409,7 +409,6 @@ static inline void neo_parse_isr(struct dgnc_board *brd, uint port) 
		}



		if (isr & UART_IIR_THRI) {

			ch->ch_intr_tx++;

			/* Transfer data (if any) from Write Queue -> UART. */

			spin_lock_irqsave(&ch->ch_lock, flags);

			ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
@@ -546,7 +545,6 @@ static inline void neo_parse_lsr(struct dgnc_board *brd, uint port) 
	}



	if (linestatus & UART_LSR_THRE) {

		ch->ch_intr_tx++;

		spin_lock_irqsave(&ch->ch_lock, flags);

		ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);

		spin_unlock_irqrestore(&ch->ch_lock, flags);
@@ -554,7 +552,6 @@ static inline void neo_parse_lsr(struct dgnc_board *brd, uint port) 
		/* Transfer data (if any) from Write Queue -> UART. */

		neo_copy_data_from_queue_to_uart(ch);

	} else if (linestatus & UART_17158_TX_AND_FIFO_CLR) {

		ch->ch_intr_tx++;

		spin_lock_irqsave(&ch->ch_lock, flags);

		ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);

		spin_unlock_irqrestore(&ch->ch_lock, flags);