tree: https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git crypto-pending head: 29f68b17554ec4567502fc97eff48e7a893ece12 commit: 29da0bdee4632c377e7985bb1d6de9c2e9520425 [23/40] crypto: atmel-aes - switch to skcipher API config: x86_64-allyesconfig (attached as .config) compiler: gcc-7 (Debian 7.4.0-13) 7.4.0 reproduce: git checkout 29da0bdee4632c377e7985bb1d6de9c2e9520425 # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/crypto/atmel-aes.c: In function 'atmel_aes_register_algs': crypto_unregister_alg(&aes_xts_alg); ^ In file included from drivers/crypto/atmel-aes.c:32:0: include/linux/crypto.h:703:5: note: expected 'struct crypto_alg *' but argument is of type 'struct skcipher_alg *' int crypto_unregister_alg(struct crypto_alg *alg); ^~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/crypto_unregister_alg +2515 drivers/crypto/atmel-aes.c 89a82ef87e0120 Cyrille Pitchen 2017-01-26 2507 bd3c7b5c2aba0d Nicolas Royer 2012-07-01 2508 return 0; bd3c7b5c2aba0d Nicolas Royer 2012-07-01 2509 89a82ef87e0120 Cyrille Pitchen 2017-01-26 2510 #ifdef CONFIG_CRYPTO_DEV_ATMEL_AUTHENC 89a82ef87e0120 Cyrille Pitchen 2017-01-26 2511 /* i = ARRAY_SIZE(aes_authenc_algs); */ 89a82ef87e0120 Cyrille Pitchen 2017-01-26 2512 err_aes_authenc_alg: 89a82ef87e0120 Cyrille Pitchen 2017-01-26 2513 for (j = 0; j < i; j++) 89a82ef87e0120 Cyrille Pitchen 2017-01-26 2514 crypto_unregister_aead(&aes_authenc_algs[j]); 89a82ef87e0120 Cyrille Pitchen 2017-01-26 @2515 crypto_unregister_alg(&aes_xts_alg); 89a82ef87e0120 Cyrille Pitchen 2017-01-26 2516 #endif d52db5188a87dc Cyrille Pitchen 2016-10-03 2517 err_aes_xts_alg: d52db5188a87dc Cyrille Pitchen 2016-10-03 2518 crypto_unregister_aead(&aes_gcm_alg); d4419548dba957 Cyrille Pitchen 2015-12-17 2519 err_aes_gcm_alg: 29da0bdee4632c Ard Biesheuvel 2019-10-14 2520 crypto_unregister_skcipher(&aes_cfb64_alg); bd3c7b5c2aba0d Nicolas Royer 2012-07-01 2521 err_aes_cfb64_alg: bd3c7b5c2aba0d Nicolas Royer 2012-07-01 2522 i = ARRAY_SIZE(aes_algs); bd3c7b5c2aba0d Nicolas Royer 2012-07-01 2523 err_aes_algs: bd3c7b5c2aba0d Nicolas Royer 2012-07-01 2524 for (j = 0; j < i; j++) 29da0bdee4632c Ard Biesheuvel 2019-10-14 2525 crypto_unregister_skcipher(&aes_algs[j]); bd3c7b5c2aba0d Nicolas Royer 2012-07-01 2526 bd3c7b5c2aba0d Nicolas Royer 2012-07-01 2527 return err; bd3c7b5c2aba0d Nicolas Royer 2012-07-01 2528 } bd3c7b5c2aba0d Nicolas Royer 2012-07-01 2529 :::::: The code at line 2515 was first introduced by commit :::::: 89a82ef87e012061989fcaf7dd51d706ff2090e3 crypto: atmel-authenc - add support to authenc(hmac(shaX), Y(aes)) modes :::::: TO: Cyrille Pitchen <cyrille.pitchen(a)atmel.com&gt; :::::: CC: Herbert Xu <herbert(a)gondor.apana.org.au&gt; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation