On Wed, May 19, 2021 at 01:22:34PM +0200, Ard Biesheuvel wrote: > > crypto_stats_get(alg); > - if (crypto_aead_get_flags(aead) & CRYPTO_TFM_NEED_KEY) > + if (!(alg->cra_flags & CRYPTO_ALG_ASYNC) && > + WARN_ONCE(!in_task() && !in_serving_softirq(), > + "synchronous call from invalid context\n")) > + ret = -EBUSY; I don't think we've ever supported crypto in hard IRQ contexts. So this should be done regardless of ASYNC. Then again, do we really need this since the assumption has always been that the crypto API can only be invoked in user or softirq context? Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
