linux-kernel - [PATCH 03/10] staging: slicoss: slic.h: add a macro IOMEM_SET

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Date:   Tue, 13 Sep 2016 19:59:52 -0700
From:   Peng Sun <sironhide0null@...il.com>
To:     liodot@...il.com, charrer@...critech.com,
        gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org, Peng Sun <sironhide0null@...il.com>
Subject: [PATCH 03/10] staging: slicoss: slic.h: add a macro IOMEM_SET_FIELD32 to fix sparse warnings

Signed-off-by: Peng Sun <sironhide0null@...il.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 ff71070..4c22863 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);					\
+})
+
 #define UPDATE_STATS(largestat, newstat, oldstat)                        \
 {                                                                        \
 	if ((newstat) < (oldstat))                                       \
-- 
2.7.4