On Fri, 17 Feb 2023 at 15:22, James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote: > > On Fri, 2023-02-17 at 19:30 +0800, kernel test robot wrote: > [...] > > > > ERROR: modpost: "aescfb_encrypt" [drivers/char/tpm/tpm.ko] > > > > undefined! > > > > ERROR: modpost: "aescfb_decrypt" [drivers/char/tpm/tpm.ko] > > > > undefined! > > Ard, > > This happens because your aescfb_encrypt/decrypt() routines are missing > EXPORT_SYMBOL statements. > OK, i'll add those.