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util: Carry own definition of __bswap_constant{16,32}
musl doesn't define those, use our own definition there. This is a trivial implementation, similar to what's shipped by e.g. uClibc, glibc, libiio. Reported-by: Chris Kuhn <kuhnchris+github@kuhnchris.eu> Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
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11
util.h
11
util.h
@ -88,6 +88,17 @@
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#define MAC_ZERO ((uint8_t [ETH_ALEN]){ 0 })
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#define MAC_ZERO ((uint8_t [ETH_ALEN]){ 0 })
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#define MAC_IS_ZERO(addr) (!memcmp((addr), MAC_ZERO, ETH_ALEN))
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#define MAC_IS_ZERO(addr) (!memcmp((addr), MAC_ZERO, ETH_ALEN))
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#ifndef __bswap_constant_16
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#define __bswap_constant_16(x) \
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((uint16_t) ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)))
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#endif
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#ifndef __bswap_constant_32
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#define __bswap_constant_32(x) \
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((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \
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(((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
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#endif
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#if __BYTE_ORDER == __BIG_ENDIAN
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#if __BYTE_ORDER == __BIG_ENDIAN
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#define htons_constant(x) (x)
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#define htons_constant(x) (x)
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#define htonl_constant(x) (x)
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#define htonl_constant(x) (x)
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