* out-of-tree kernel patch adding a callback facility to
drivers/char/random.c: registered callbacks observe material entering
the kernel's input pool, letting an out-of-kernel-tree RNG harvest
the same entropy stream without draining it;
* lkcapi_sha_glue.c: a harvest fragment stirs the leased instance
directly; the daemon root -- the one node the harvest wire otherwise
never reaches -- receives the fragment through its uncredited
accumulator (wc_RNG_DRBG_NextUncreditedSeedStore(), writer-safe
without a lease), for consumption at the root's own next generate.
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