Re: [PATCH v3 1/5] crypto: Use memzero_explicit() for clearing state

[Herbert Xu]

On Fri, Oct 23, 2020 at 03:21:59PM -0400, Arvind Sankar wrote:
> Without the barrier_data() inside memzero_explicit(), the compiler may
> optimize away the state-clearing if it can tell that the state is not
> used afterwards. At least in lib/crypto/sha256.c:__sha256_final(), the
> function can get inlined into sha256(), in which case the memset is
> optimized away.

Please only convert sha256 and not everything.

Thanks,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
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