[PATCH 4/7] staging: slicoss: slicoss.c: fix different address space sparse warning

[Peng Sun]

add IOMEM_SET_FIELD32 to set u32 value of a member of a __iomem structure;

Signed-off-by: Peng Sun <sironhide0n...@gmail.com>
---
 drivers/staging/slicoss/slic.h    | 7 +++++++
 drivers/staging/slicoss/slicoss.c | 8 ++++----
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/slicoss/slic.h b/drivers/staging/slicoss/slic.h
index fec9ec5..b9595c4 100644
--- a/drivers/staging/slicoss/slic.h
+++ b/drivers/staging/slicoss/slic.h
@@ -553,6 +553,13 @@ static inline void slic_flush_write(struct adapter 
*adapter)
        ioread32(_base);                                                \
 })
 
+#define IOMEM_SET_FIELD32(value, base, member)                         \
+({                                                                     \
+       char __iomem *_base = (char __iomem *)base;                     \
+       _base += offsetof(typeof(*base), member);                       \
+       iowrite32(value, _base);                                        \
+})
+
 #ifdef CONFIG_64BIT
 #define IOMEM_GET_FIELD64(base, member)                                        
\
 ({                                                                     \
diff --git a/drivers/staging/slicoss/slicoss.c 
b/drivers/staging/slicoss/slicoss.c
index 2128963..c92b8c5 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -2087,15 +2087,15 @@ static irqreturn_t slic_interrupt(int irq, void *dev_id)
        struct net_device *dev = dev_id;
        struct adapter *adapter = netdev_priv(dev);
        struct slic_shmemory *sm = &adapter->shmem;
-       struct slic_shmem_data *sm_data = sm->shmem_data;
+       struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
        u32 isr;
 
-       if (sm_data->isr) {
+       if (IOMEM_GET_FIELD32(sm_data, isr)) {
                slic_write32(adapter, SLIC_REG_ICR, ICR_INT_MASK);
                slic_flush_write(adapter);
 
-               isr = sm_data->isr;
-               sm_data->isr = 0;
+               isr = IOMEM_GET_FIELD32(sm_data, isr);
+               IOMEM_SET_FIELD32(0, sm_data, isr);
                adapter->num_isrs++;
                switch (adapter->card->state) {
                case CARD_UP:
-- 
2.7.4