1  unsigned f(unsigned flags, unsigned capabilities)
       2  {
       3    unsigned gfp_mask;
       4    unsigned gfp_notmask = 0;
       5    gfp_mask = flags & ((1 << 25) - 1);
       6    if (!(capabilities & 0x00000001))
       7      gfp_mask |= 0x1000000u;
       8    return (gfp_mask & ~gfp_notmask);
       9  }