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staging: dgnc: remove useless variable 'ch_intr_tx'

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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: 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 15:19:27 +09:00
committed by Greg Kroah-Hartman
parent 74c900f5e9
commit 2c7d924e28
3 changed files with 0 additions and 5 deletions
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1
drivers/staging/dgnc/dgnc_cls.c
View File

@@ -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);
}

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_tx; /* Count of interrupts */
ulong ch_intr_rx; /* Count of interrupts */
/* /proc/<board>/<channel> entries */

3
drivers/staging/dgnc/dgnc_neo.c
View File

@@ -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);