On 1/28/2019 9:00 PM, Roland Hieber wrote: > Hi Horia, > > I didn't understand your patch thoroughly yet, but I tested it and it > gets rid of my DMA-API warning, so: > As mentioned in the commit message, the main idea is to use the buffer holding the partial hash (state->caam_ctx) also for the final hash. So now: -crypto engine DMA writes final hash to state->caam_ctx -driver copies hash from state->caam_ctx to req->result There are some implications of this change, mainly the change of DMA mapping direction for state->caam_ctx, clean-up code (DMA unmapping) and updates in how crypto engine job descriptors are generated. > Tested-by: Roland Hieber <rhi@xxxxxxxxxxxxxx> > Thanks!Horia
