[dm-devel] [PATCH v3 04/10] libmultipath: add (get|put)_unaligned_be64
Martin Wilck
mwilck at suse.com
Sun Jun 24 19:09:38 UTC 2018
Signed-off-by: Martin Wilck <mwilck at suse.com>
---
libmultipath/unaligned.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/libmultipath/unaligned.h b/libmultipath/unaligned.h
index 14ec8b23..68c07742 100644
--- a/libmultipath/unaligned.h
+++ b/libmultipath/unaligned.h
@@ -17,6 +17,14 @@ static inline uint32_t get_unaligned_be32(void *ptr)
return p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
}
+static inline uint64_t get_unaligned_be64(void *ptr)
+{
+ uint32_t low = get_unaligned_be32(ptr + 4);
+ uint64_t high = get_unaligned_be32(ptr);
+
+ return high << 32 | low;
+}
+
static inline void put_unaligned_be16(uint16_t val, void *ptr)
{
uint8_t *p = ptr;
@@ -35,4 +43,12 @@ static inline void put_unaligned_be32(uint32_t val, void *ptr)
p[3] = val;
}
+static inline void put_unaligned_be64(uint64_t val, void *ptr)
+{
+ uint8_t *p = ptr;
+
+ put_unaligned_be32(val >> 32, p);
+ put_unaligned_be32(val, p + 4);
+}
+
#endif /* _UNALIGNED_H_ */
--
2.17.1
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