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Groups > linux.kernel > #1482890
| From | Peng Sun <sironhide0null@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 04/10] staging: slicoss: slic.h: add a macro IOMEM_GET_FIELD64 to fix sparse warnings |
| Date | 2016-09-14 05:10 +0200 |
| Message-ID | <sh8Kd-2KP-3@gated-at.bofh.it> (permalink) |
| References | <sh8Kd-2KP-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Signed-off-by: Peng Sun <sironhide0null@gmail.com>
---
drivers/staging/slicoss/slic.h | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/staging/slicoss/slic.h b/drivers/staging/slicoss/slic.h
index 4c22863..b9595c4 100644
--- a/drivers/staging/slicoss/slic.h
+++ b/drivers/staging/slicoss/slic.h
@@ -560,6 +560,31 @@ static inline void slic_flush_write(struct adapter *adapter)
iowrite32(value, _base); \
})
+#ifdef CONFIG_64BIT
+#define IOMEM_GET_FIELD64(base, member) \
+({ \
+ char __iomem *_base = (char __iomem *)base; \
+ _base += offsetof(typeof(*base), member); \
+ readq(_base); \
+})
+#else
+#define IOMEM_GET_FIELD64(base, member) \
+({ \
+ char __iomem *_base = (char __iomem *)base; \
+ u64 val; \
+ _base += offsetof(typeof(*base), member); \
+ val = ((u64)ioread8(_base + 7)) << 56; \
+ val += ((u64)ioread8(_base + 6)) << 48; \
+ val += ((u64)ioread8(_base + 5)) << 40; \
+ val += ((u64)ioread8(_base + 4)) << 32; \
+ val += ((u64)ioread8(_base + 3)) << 24; \
+ val += ((u64)ioread8(_base + 2)) << 16; \
+ val += ((u64)ioread8(_base + 1)) << 8; \
+ val += ioread8(_base); \
+ le64_to_cpu(val); \
+})
+#endif
+
#define UPDATE_STATS(largestat, newstat, oldstat) \
{ \
if ((newstat) < (oldstat)) \
--
2.7.4
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[PATCH 04/10] staging: slicoss: slic.h: add a macro IOMEM_GET_FIELD64 to fix sparse warnings Peng Sun <sironhide0null@gmail.com> - 2016-09-14 05:10 +0200
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