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byteorder: add get/put endian helpers for the aligned case

PATCH New Harvey Harrison 1 participant 1 message May 28, 2008 Generic include/asm header files

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PATCH 1/1 byteorder: add get/put endian helpers for the aligned case

Create helpers when working with aligned loads/stores, same functionality as get_unaligned_* and put_unaligned_*

---
 include/linux/byteorder.h |   84 +++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 84 insertions(+), 0 deletions(-)
include/linux/byteorder.h +84 -0
index b4713ce..ad47244 100644
@@ -278,6 +278,90 @@ static inline __be64 __cpu_to_be64p(const __u64 *p)
 # define htons(x) ___htons(x)
 # define ntohs(x) ___ntohs(x)
 
+static inline u16 get_le16(const __le16 *p)
+{
+#ifdef __LITTLE_ENDIAN
+	return (__force u16)*p;
+#else
+	return swab16p((__force u16 *)p);
+#endif
+}
+
+static inline u32 get_le32(const __le32 *p)
+{
+#ifdef __LITTLE_ENDIAN
+	return (__force u32)*p;
+#else
+	return swab32p((__force u32 *)p);
+#endif
+}
+
+static inline u64 get_le64(const __le64 *p)
+{
+#ifdef __LITTLE_ENDIAN
+	return (__force u64)*p;
+#else
+	return __swab64p((__force u64 *)p);
+#endif
+}
+
+static inline u16 get_be16(const __be16 *p)
+{
+#ifdef __BIG_ENDIAN
+	return (__force u16)*p;
+#else
+	return swab16p((__force u16 *)p);
+#endif
+}
+
+static inline u32 get_be32(const __be32 *p)
+{
+#ifdef __BIG_ENDIAN
+	return (__force u32)*p;
+#else
+	return swab32p((__force u32 *)p);
+#endif
+}
+
+static inline u64 get_be64(const __be64 *p)
+{
+#ifdef __BIG_ENDIAN
+	return (__force u64)*p;
+#else
+	return __swab64p((__force u64 *)p);
+#endif
+}
+
+static inline void put_le16(u16 val, __le16 *p)
+{
+	*p = cpu_to_le16(val);
+}
+
+static inline void put_le32(u32 val, __le32 *p)
+{
+	*p = cpu_to_le32(val);
+}
+
+static inline void put_le64(u64 val, __le64 *p)
+{
+	*p = cpu_to_le64(val);
+}
+
+static inline void put_be16(u16 val, __be16 *p)
+{
+	*p = cpu_to_be16(val);
+}
+
+static inline void put_be32(u32 val, __be32 *p)
+{
+	*p = cpu_to_be32(val);
+}
+
+static inline void put_be64(u64 val, __be64 *p)
+{
+	*p = cpu_to_be64(val);
+}
+
 static inline void le16_add_cpu(__le16 *var, u16 val)
 {
 	*var = cpu_to_le16(le16_to_cpup(var) + val);
Signature · 1 line
1.5.5.1.579.g4e43