On Thu, Aug 01, 2019 at 08:28:56PM +0300, Ard Biesheuvel wrote: > On Thu, 1 Aug 2019 at 15:28, Heiko Carstens <heiko.carstens@xxxxxxxxxx> wrote: > > Still not... with linux-next as of today I get this (s390 defconfig): > > > > ERROR: "crypto_aegis128_decrypt_chunk_simd" [crypto/aegis128.ko] undefined! > > ERROR: "crypto_aegis128_update_simd" [crypto/aegis128.ko] undefined! > > ERROR: "crypto_aegis128_encrypt_chunk_simd" [crypto/aegis128.ko] undefined! > > scripts/Makefile.modpost:105: recipe for target 'modules-modpost' failed > > > > Hello Heiko, > > Apologies for the breakage. The first two fixes addressed obvious > shortcomings in my code, but with this issue, I'm a bit puzzled tbh. > The calls to these missing functions should be optimized away, since > have_simd never gets assigned if CONFIG_CRYPTO_AEGIS128_SIMD is not > defined, but for some reason, this isn't working. Which version of GCC > are you using? Plain vanilla gcc 9.1.0. > Also, could you please try whether the patch below fixes the problem? Thanks > https://lore.kernel.org/linux-crypto/20190729074434.21064-1-ard.biesheuvel@xxxxxxxxxx/ Yes, with that patch applied the code compiles.