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scsi: treewide: Consolidate {get,put}_unaligned_[bl]e24() definitions

Move the get_unaligned_be24(), get_unaligned_le24() and put_unaligned_le24() definitions from various drivers into include/linux/unaligned/generic.h. Add a put_unaligned_be24() implementation.

Bart Van Assche committed 6 years ago

Commit a7afff31 parent 7251c0a6 files · +47 −25Browse files

Showing the changes to include/linux (1 of 6 files). Show all

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include/linux/unaligned/generic.h+46−0
@@ -2,6 +2,8 @@ · 1 unmodified line
22 #ifndef _LINUX_UNALIGNED_GENERIC_H
33 #define _LINUX_UNALIGNED_GENERIC_H
44
5+#include <linux/types.h>
6+
57 /*
68 * Cause a link-time error if we try an unaligned access other than
79 * 1,2,4 or 8 bytes long
@@ -66,4 +68,48 @@ extern void __bad_unaligned_access_size(void); · 58 unmodified lines
6668 } \
6769 (void)0; })
6870
71+static inline u32 __get_unaligned_be24(const u8 *p)
72+{
73+ return p[0] << 16 | p[1] << 8 | p[2];
74+}
75+
76+static inline u32 get_unaligned_be24(const void *p)
77+{
78+ return __get_unaligned_be24(p);
79+}
80+
81+static inline u32 __get_unaligned_le24(const u8 *p)
82+{
83+ return p[0] | p[1] << 8 | p[2] << 16;
84+}
85+
86+static inline u32 get_unaligned_le24(const void *p)
87+{
88+ return __get_unaligned_le24(p);
89+}
90+
91+static inline void __put_unaligned_be24(const u32 val, u8 *p)
92+{
93+ *p++ = val >> 16;
94+ *p++ = val >> 8;
95+ *p++ = val;
96+}
97+
98+static inline void put_unaligned_be24(const u32 val, void *p)
99+{
100+ __put_unaligned_be24(val, p);
101+}
102+
103+static inline void __put_unaligned_le24(const u32 val, u8 *p)
104+{
105+ *p++ = val;
106+ *p++ = val >> 8;
107+ *p++ = val >> 16;
108+}
109+
110+static inline void put_unaligned_le24(const u32 val, void *p)
111+{
112+ __put_unaligned_le24(val, p);
113+}
114+
69115 #endif /* _LINUX_UNALIGNED_GENERIC_H */