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[PATCH 02/10] staging: slicoss: slic.h: add a macro IOMEM_GET_FIELD32 to fix sparse warnings

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  [PATCH 02/10] staging: slicoss: slic.h: add a macro IOMEM_GET_FIELD32 to fix sparse warnings Peng Sun <sironhide0null@gmail.com> - 2016-09-14 05:10 +0200

#1482894 — [PATCH 02/10] staging: slicoss: slic.h: add a macro IOMEM_GET_FIELD32 to fix sparse warnings

Signed-off-by: Peng Sun <sironhide0null@gmail.com>
---
 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 7c23190..ff71070 100644
--- a/drivers/staging/slicoss/slic.h
+++ b/drivers/staging/slicoss/slic.h
@@ -546,6 +546,13 @@ static inline void slic_flush_write(struct adapter *adapter)
 	(void __iomem *)_base;						\
 })
 
+#define IOMEM_GET_FIELD32(base, member)					\
+({									\
+	char __iomem *_base = (char __iomem *)base;			\
+	_base += offsetof(typeof(*base), member);			\
+	ioread32(_base);						\
+})
+
 #define UPDATE_STATS(largestat, newstat, oldstat)                        \
 {                                                                        \
 	if ((newstat) < (oldstat))                                       \
-- 
2.7.4

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