On 27/05/16 07:52, Daeseok Youn wrote:
> The 'intr_count' variable was used only for increasing.
> So the 'intr_count' variable is not useful for this driver.
>
> Signed-off-by: Daeseok Youn <daeseok.youn@xxxxxxxxx>
> ---
> drivers/staging/dgnc/dgnc_cls.c | 2 --
> drivers/staging/dgnc/dgnc_driver.h | 1 -
> drivers/staging/dgnc/dgnc_neo.c | 2 --
> 3 files changed, 5 deletions(-)
>
> diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c
> index 46c050c..dcb808f 100644
> --- a/drivers/staging/dgnc/dgnc_cls.c
> +++ b/drivers/staging/dgnc/dgnc_cls.c
> @@ -760,8 +760,6 @@ static irqreturn_t cls_intr(int irq, void *voidbrd)
>
> spin_lock_irqsave(&brd->bd_intr_lock, flags);
>
> - brd->intr_count++;
> -
> /*
> * Check the board's global interrupt offset to see if we
> * we actually do have an interrupt pending for us.
> diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h
> index 95ec729..7ac33ed 100644
> --- a/drivers/staging/dgnc/dgnc_driver.h
> +++ b/drivers/staging/dgnc/dgnc_driver.h
> @@ -183,7 +183,6 @@ struct dgnc_board {
> uint nasync; /* Number of ports on card */
>
> uint irq; /* Interrupt request number */
> - ulong intr_count; /* Count of interrupts */
> ulong intr_modem; /* Count of interrupts */
> ulong intr_tx; /* Count of interrupts */
> ulong intr_rx; /* Count of interrupts */
> diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c
> index ba57e95..3f8bbb3 100644
> --- a/drivers/staging/dgnc/dgnc_neo.c
> +++ b/drivers/staging/dgnc/dgnc_neo.c
> @@ -926,8 +926,6 @@ static irqreturn_t neo_intr(int irq, void *voidbrd)
> if (!brd || brd->magic != DGNC_BOARD_MAGIC)
> return IRQ_NONE;
>
> - brd->intr_count++;
> -
> /* Lock out the slow poller from running on this board. */
> spin_lock_irqsave(&brd->bd_intr_lock, flags);
>
>
Good catch. intr_count is set and incremented but never read.
Thanks,
Luis
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