spi: spi-s3c64xx: Use local variable for FIFO length

More references to fifo_len are added in subsequent patch.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index db33bc9..27cd8c5 100644 (file)
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -634,6 +634,7 @@ static int s3c64xx_spi_transfer_one(struct spi_master *master,
                                    struct spi_transfer *xfer)
 {
        struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
+       const unsigned int fifo_len = (FIFO_LVL_MASK(sdd) >> 1) + 1;
        int status;
        u32 speed;
        u8 bpw;
@@ -655,9 +656,8 @@ static int s3c64xx_spi_transfer_one(struct spi_master *master,
 
        /* Polling method for xfers not bigger than FIFO capacity */
        use_dma = 0;
-       if (!is_polling(sdd) &&
-           (sdd->rx_dma.ch && sdd->tx_dma.ch &&
-            (xfer->len > ((FIFO_LVL_MASK(sdd) >> 1) + 1))))
+       if (!is_polling(sdd) && (xfer->len > fifo_len) &&
+           sdd->rx_dma.ch && sdd->tx_dma.ch)
                use_dma = 1;
 
        spin_lock_irqsave(&sdd->lock, flags);