> +unsigned long long notrace __bswapdi2(unsigned long long u) > +{ > + return (((u) & 0xff00000000000000ull) >> 56) | > + (((u) & 0x00ff000000000000ull) >> 40) | > + (((u) & 0x0000ff0000000000ull) >> 24) | > + (((u) & 0x000000ff00000000ull) >> 8) | > + (((u) & 0x00000000ff000000ull) << 8) | > + (((u) & 0x0000000000ff0000ull) << 24) | > + (((u) & 0x000000000000ff00ull) << 40) | > + (((u) & 0x00000000000000ffull) << 56); > +} How is this any better than using the generic byteswap helpers? > +unsigned int notrace __bswapsi2(unsigned int u) > +{ > + return (((u) & 0xff000000) >> 24) | > + (((u) & 0x00ff0000) >> 8) | > + (((u) & 0x0000ff00) << 8) | > + (((u) & 0x000000ff) << 24); > +} Same here.