Al Viro <v...@zeniv.linux.org.uk> wrote: > > * shoved into scatterlist, which gets fed into crypto/*.c machinery. > No way for a pipe_buffer stuff to get there, fortunately, because I would > be very surprised if it works correctly with compound pages and large > ranges in those.
FWIW the crypto API has always been supposed to handle SG entries that cross page boundaries. There were a couple of bugs in this area but AFAIK they've all been fixed. Of course I cannot guarantee that every crypto driver also handles it correctly, but at least we have a few test vectors which test the page-crossing case specifically. Cheers, -- Email: Herbert Xu <herb...@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt