On Fri, Mar 02, 2018 at 03:11:52PM -0600, Gary R Hook wrote: > Commit 466d7b9f6 (cryptodev-2.6) added code to testmgr to populate, for > async hash operations, the result buffer with a known value and to test the > buffer against that value at intermediate steps. If the result buffer > changes the operation is failed. > > My question is: why? The problem is that you must not touch the result buffer unless you're doing a finalisation. Indeed, the caller may have provided a NULL pointer for what it's worth. Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
