spi: fsl: add missing __iomem annotation

The field mspi->reg_base is annotated as an __iomem pointer. Good.

However, this field is often assigned to a temporary variable:
before being used. For example:
	struct fsl_spi_reg *reg_base = mspi->reg_base;

But this variable is missing the __iomem annotation.
So, add the missing __iomem and make sparse & the bot happier.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Link: https://lore.kernel.org/r/20200622162611.83694-1-luc.vanoostenryck@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c
index 67f022b..299e987 100644 (file)
--- a/drivers/spi/spi-fsl-spi.c
+++ b/drivers/spi/spi-fsl-spi.c
@@ -90,7 +90,7 @@ static void fsl_spi_change_mode(struct spi_device *spi)
 {
        struct mpc8xxx_spi *mspi = spi_master_get_devdata(spi->master);
        struct spi_mpc8xxx_cs *cs = spi->controller_state;
-       struct fsl_spi_reg *reg_base = mspi->reg_base;
+       struct fsl_spi_reg __iomem *reg_base = mspi->reg_base;
        __be32 __iomem *mode = &reg_base->mode;
        unsigned long flags;
 
@@ -291,7 +291,7 @@ static int fsl_spi_cpu_bufs(struct mpc8xxx_spi *mspi,
                                struct spi_transfer *t, unsigned int len)
 {
        u32 word;
-       struct fsl_spi_reg *reg_base = mspi->reg_base;
+       struct fsl_spi_reg __iomem *reg_base = mspi->reg_base;
 
        mspi->count = len;
 
@@ -309,7 +309,7 @@ static int fsl_spi_bufs(struct spi_device *spi, struct spi_transfer *t,
                            bool is_dma_mapped)
 {
        struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(spi->master);
-       struct fsl_spi_reg *reg_base;
+       struct fsl_spi_reg __iomem *reg_base;
        unsigned int len = t->len;
        u8 bits_per_word;
        int ret;
@@ -440,7 +440,7 @@ static int fsl_spi_do_one_msg(struct spi_master *master,
 static int fsl_spi_setup(struct spi_device *spi)
 {
        struct mpc8xxx_spi *mpc8xxx_spi;
-       struct fsl_spi_reg *reg_base;
+       struct fsl_spi_reg __iomem *reg_base;
        int retval;
        u32 hw_mode;
        struct spi_mpc8xxx_cs *cs = spi_get_ctldata(spi);
@@ -495,7 +495,7 @@ static void fsl_spi_cleanup(struct spi_device *spi)
 
 static void fsl_spi_cpu_irq(struct mpc8xxx_spi *mspi, u32 events)
 {
-       struct fsl_spi_reg *reg_base = mspi->reg_base;
+       struct fsl_spi_reg __iomem *reg_base = mspi->reg_base;
 
        /* We need handle RX first */
        if (events & SPIE_NE) {
@@ -530,7 +530,7 @@ static irqreturn_t fsl_spi_irq(s32 irq, void *context_data)
        struct mpc8xxx_spi *mspi = context_data;
        irqreturn_t ret = IRQ_NONE;
        u32 events;
-       struct fsl_spi_reg *reg_base = mspi->reg_base;
+       struct fsl_spi_reg __iomem *reg_base = mspi->reg_base;
 
        /* Get interrupt events(tx/rx) */
        events = mpc8xxx_spi_read_reg(&reg_base->event);
@@ -550,7 +550,7 @@ static irqreturn_t fsl_spi_irq(s32 irq, void *context_data)
 static void fsl_spi_grlib_cs_control(struct spi_device *spi, bool on)
 {
        struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(spi->master);
-       struct fsl_spi_reg *reg_base = mpc8xxx_spi->reg_base;
+       struct fsl_spi_reg __iomem *reg_base = mpc8xxx_spi->reg_base;
        u32 slvsel;
        u16 cs = spi->chip_select;
 
@@ -568,7 +568,7 @@ static void fsl_spi_grlib_probe(struct device *dev)
        struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
        struct spi_master *master = dev_get_drvdata(dev);
        struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(master);
-       struct fsl_spi_reg *reg_base = mpc8xxx_spi->reg_base;
+       struct fsl_spi_reg __iomem *reg_base = mpc8xxx_spi->reg_base;
        int mbits;
        u32 capabilities;
 
@@ -594,7 +594,7 @@ static struct spi_master *fsl_spi_probe(struct device *dev,
        struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
        struct spi_master *master;
        struct mpc8xxx_spi *mpc8xxx_spi;
-       struct fsl_spi_reg *reg_base;
+       struct fsl_spi_reg __iomem *reg_base;
        u32 regval;
        int ret = 0;