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#if defined(__arm__) |
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/* Unaligned 32 bits read on ARM */ |
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#ifndef __ARMEB__ |
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#define get_unaligned(p) __get_unaligned_le32((__u8*)(p)) |
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#define put_unaligned(v,p) __put_unaligned_le32((v),(__u8*)(p)) |
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#else |
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#define get_unaligned(p) __get_unaligned_be32((__u8*)(p)) |
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#define put_unaligned(v,p) __put_unaligned_be32((v),(__u8*)(p)) |
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#endif |
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static inline void __put_unaligned_le32(__u32 v, register __u8 *p) |
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{ |
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*p++ = v; |
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*p++ = v >> 8; |
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*p++ = v >> 16; |
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*p = v >> 24; |
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} |
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static inline void __put_unaligned_be32(__u32 v, register __u8 *p) |
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{ |
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*p++ = v >> 24; |
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*p++ = v >> 16; |
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*p++ = v >> 8; |
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*p = v; |
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} |
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static inline __u32 __get_unaligned_le32(__u8* p) |
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{ |
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return p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24; |
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} |
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static inline __u32 __get_unaligned_be32(__u8 *p) |
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{ |
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return p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3]; |
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} |
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#else |
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/* Generic unaligned read */ |
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#define get_unaligned(ptr) (*(__u32*)(ptr)) |
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/* Generic unalgined write */ |
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#define put_unaligned(val, ptr) ((void)( *(ptr) = (val) )) |
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#endif |
