Hi Satya, FYI, the error/warning still remains. tree: https://android.googlesource.com/kernel/common android-4.14-stable head: df8b534e51541e55a1b1f0009ebcbb6a49f34b18 commit: 86556e67a9fde013721c184f1590930b5811505f [19681/25403] ANDROID: mmc: MMC crypto API config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20211123/202111232214.WdTOlJEp-lk...) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce (this is a W=1 build): git remote add android-common https://android.googlesource.com/kernel/common git fetch --no-tags android-common android-4.14-stable git checkout 86556e67a9fde013721c184f1590930b5811505f # save the config file to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): void mmc_crypto_setup_queue(struct mmc_host *host, struct request_queue *q) ^~~~~~~~~~~~~~~~~~~~~~ void mmc_crypto_free_host(struct mmc_host *host) ^~~~~~~~~~~~~~~~~~~~ void mmc_crypto_prepare_req(struct mmc_queue_req *mqrq) ^~~~~~~~~~~~~~~~~~~~~~ vim +/mmc_crypto_setup_queue +14 drivers/mmc/core/crypto.c 13 15 { 16 if (host->caps2 & MMC_CAP2_CRYPTO) 17 q->ksm = host->ksm; 18 } 19 EXPORT_SYMBOL_GPL(mmc_crypto_setup_queue); 20 22 { 23 keyslot_manager_destroy(host->ksm); 24 } 25 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org