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/linux-3.4.99/drivers/char/
Drandom.c491 int wordmask = r->poolinfo->poolwords - 1; in _mix_pool_bytes() local
508 i = (i - 1) & wordmask; in _mix_pool_bytes()
512 w ^= r->pool[(i + tap1) & wordmask]; in _mix_pool_bytes()
513 w ^= r->pool[(i + tap2) & wordmask]; in _mix_pool_bytes()
514 w ^= r->pool[(i + tap3) & wordmask]; in _mix_pool_bytes()
515 w ^= r->pool[(i + tap4) & wordmask]; in _mix_pool_bytes()
516 w ^= r->pool[(i + tap5) & wordmask]; in _mix_pool_bytes()
536 ((__u32 *)out)[j] = r->pool[(i - j) & wordmask]; in _mix_pool_bytes()