Dmitry Kasatkin <dmitry.kasatkin@xxxxxxxxx> wrote: > > I develop some drivers for crypto HW and met some difficulties. > Some algorithm functions are called behind crypto_kmap() > > data = crypto_kmap(sg_page(sg), 0); > > It will do inc_preempt_count(); > > I try to use DMA controller to perform memory transfers and try to use > wait_for_completion() crypto_kmap is for software crypto. If you're doing DMA, you shouldn't use it. Please take a look at other crypto drivers under drivers/crypto as to how DMA should be implemented. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
