[PATCH 01/10] staging: slicoss: slic.h: add a macro IOMEM_GET_FIELDADDR to fix sparse warnings

[Peng Sun]

Signed-off-by: Peng Sun <sironhide0null@xxxxxxxxx>
---
 drivers/staging/slicoss/slic.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/staging/slicoss/slic.h b/drivers/staging/slicoss/slic.h
index fe1d2ce..7c23190 100644
--- a/drivers/staging/slicoss/slic.h
+++ b/drivers/staging/slicoss/slic.h
@@ -539,6 +539,13 @@ static inline void slic_flush_write(struct adapter *adapter)
 	ioread32(adapter->regs + SLIC_REG_HOSTID);
 }
 
+#define IOMEM_GET_FIELDADDR(base, member)				\
+({									\
+	char __iomem *_base = (char __iomem *)base;			\
+	_base += offsetof(typeof(*base), member);			\
+	(void __iomem *)_base;						\
+})
+
 #define UPDATE_STATS(largestat, newstat, oldstat)                        \
 {                                                                        \
 	if ((newstat) < (oldstat))                                       \
-- 
2.7.4