[PATCH v3 3/5] spi: dw: remove duplicated "!rx_len && !tx_len" handling from dw_spi_irq

[Changhuang Liang <changhuang.liang@starfivetech.com>]

> dw_spi_irq() need not handle enhanced-transfer's "!rx_len && !tx_len"
> case as that state is already handled by dw_spi_enh_handler()
>
> Signed-off-by: Jisheng Zhang <jszhang@kernel.org>

Reviewed-by: Changhuang Liang <changhuang.liang@starfivetech.com>

> ---
>  drivers/spi/spi-dw-core.c | 6 ------
>  1 file changed, 6 deletions(-)
>
> diff --git a/drivers/spi/spi-dw-core.c b/drivers/spi/spi-dw-core.c
> index f4c4e9dae25e..91de357f97f3 100644
> --- a/drivers/spi/spi-dw-core.c
> +++ b/drivers/spi/spi-dw-core.c
> @@ -284,12 +284,6 @@ static irqreturn_t dw_spi_irq(int irq, void *dev_id)
>  		dw_spi_mask_intr(dws, 0xff);
>  		return IRQ_HANDLED;
>  	}
> -	if (dws->transfer_handler == dw_spi_enh_handler &&
> -	    !dws->rx_len && !dws->tx_len) {
> -		dw_spi_mask_intr(dws, 0xff);
> -		spi_finalize_current_transfer(ctlr);
> -		return IRQ_HANDLED;
> -	}
>
>  	return dws->transfer_handler(dws);
>  }