Hi Namjae, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 931294922e65a23e1aad6398b9ae02df74044679 commit: 001c10aa51b4deb76eb074442ad1eac6df042f97 [3666/7588] cifsd: add Kconfig and Makefile config: m68k-randconfig-r024-20210326 (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=001c10aa51b4deb76eb074442ad1eac6df042f97 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 001c10aa51b4deb76eb074442ad1eac6df042f97 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): fs/cifsd/smb_common.c: In function 'ksmbd_override_fsids': >> fs/cifsd/smb_common.c:613:7: error: implicit declaration of function 'groups_alloc'; did you mean 'cgroup_sk_alloc'? [-Werror=implicit-function-declaration] 613 | gi = groups_alloc(0); | ^~~~~~~~~~~~ | cgroup_sk_alloc fs/cifsd/smb_common.c:613:5: warning: assignment to 'struct group_info *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 613 | gi = groups_alloc(0); | ^ >> fs/cifsd/smb_common.c:618:2: error: implicit declaration of function 'set_groups'; did you mean 'get_cgroup_ns'? [-Werror=implicit-function-declaration] 618 | set_groups(cred, gi); | ^~~~~~~~~~ | get_cgroup_ns cc1: some warnings being treated as errors Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for CRYPTO_ARC4 Depends on CRYPTO && CRYPTO_USER_API_ENABLE_OBSOLETE Selected by - SMB_SERVER && NETWORK_FILESYSTEMS && INET vim +613 fs/cifsd/smb_common.c 788b6f45c1d2ee Namjae Jeon 2021-03-16 589 788b6f45c1d2ee Namjae Jeon 2021-03-16 590 int ksmbd_override_fsids(struct ksmbd_work *work) 788b6f45c1d2ee Namjae Jeon 2021-03-16 591 { 788b6f45c1d2ee Namjae Jeon 2021-03-16 592 struct ksmbd_session *sess = work->sess; 788b6f45c1d2ee Namjae Jeon 2021-03-16 593 struct ksmbd_share_config *share = work->tcon->share_conf; 788b6f45c1d2ee Namjae Jeon 2021-03-16 594 struct cred *cred; 788b6f45c1d2ee Namjae Jeon 2021-03-16 595 struct group_info *gi; 788b6f45c1d2ee Namjae Jeon 2021-03-16 596 unsigned int uid; 788b6f45c1d2ee Namjae Jeon 2021-03-16 597 unsigned int gid; 788b6f45c1d2ee Namjae Jeon 2021-03-16 598 788b6f45c1d2ee Namjae Jeon 2021-03-16 599 uid = user_uid(sess->user); 788b6f45c1d2ee Namjae Jeon 2021-03-16 600 gid = user_gid(sess->user); 788b6f45c1d2ee Namjae Jeon 2021-03-16 601 if (share->force_uid != KSMBD_SHARE_INVALID_UID) 788b6f45c1d2ee Namjae Jeon 2021-03-16 602 uid = share->force_uid; 788b6f45c1d2ee Namjae Jeon 2021-03-16 603 if (share->force_gid != KSMBD_SHARE_INVALID_GID) 788b6f45c1d2ee Namjae Jeon 2021-03-16 604 gid = share->force_gid; 788b6f45c1d2ee Namjae Jeon 2021-03-16 605 788b6f45c1d2ee Namjae Jeon 2021-03-16 606 cred = prepare_kernel_cred(NULL); 788b6f45c1d2ee Namjae Jeon 2021-03-16 607 if (!cred) 788b6f45c1d2ee Namjae Jeon 2021-03-16 608 return -ENOMEM; 788b6f45c1d2ee Namjae Jeon 2021-03-16 609 788b6f45c1d2ee Namjae Jeon 2021-03-16 610 cred->fsuid = make_kuid(current_user_ns(), uid); 788b6f45c1d2ee Namjae Jeon 2021-03-16 611 cred->fsgid = make_kgid(current_user_ns(), gid); 788b6f45c1d2ee Namjae Jeon 2021-03-16 612 788b6f45c1d2ee Namjae Jeon 2021-03-16 @613 gi = groups_alloc(0); 788b6f45c1d2ee Namjae Jeon 2021-03-16 614 if (!gi) { 788b6f45c1d2ee Namjae Jeon 2021-03-16 615 abort_creds(cred); 788b6f45c1d2ee Namjae Jeon 2021-03-16 616 return -ENOMEM; 788b6f45c1d2ee Namjae Jeon 2021-03-16 617 } 788b6f45c1d2ee Namjae Jeon 2021-03-16 @618 set_groups(cred, gi); 788b6f45c1d2ee Namjae Jeon 2021-03-16 619 put_group_info(gi); 788b6f45c1d2ee Namjae Jeon 2021-03-16 620 788b6f45c1d2ee Namjae Jeon 2021-03-16 621 if (!uid_eq(cred->fsuid, GLOBAL_ROOT_UID)) 788b6f45c1d2ee Namjae Jeon 2021-03-16 622 cred->cap_effective = cap_drop_fs_set(cred->cap_effective); 788b6f45c1d2ee Namjae Jeon 2021-03-16 623 788b6f45c1d2ee Namjae Jeon 2021-03-16 624 WARN_ON(work->saved_cred != NULL); 788b6f45c1d2ee Namjae Jeon 2021-03-16 625 work->saved_cred = override_creds(cred); 788b6f45c1d2ee Namjae Jeon 2021-03-16 626 if (!work->saved_cred) { 788b6f45c1d2ee Namjae Jeon 2021-03-16 627 abort_creds(cred); 788b6f45c1d2ee Namjae Jeon 2021-03-16 628 return -EINVAL; 788b6f45c1d2ee Namjae Jeon 2021-03-16 629 } 788b6f45c1d2ee Namjae Jeon 2021-03-16 630 return 0; 788b6f45c1d2ee Namjae Jeon 2021-03-16 631 } 788b6f45c1d2ee Namjae Jeon 2021-03-16 632 :::::: The code at line 613 was first introduced by commit :::::: 788b6f45c1d2eef909c296d775196bc6ec7dd63a cifsd: add server-side procedures for SMB3 :::::: TO: Namjae Jeon <namjae.jeon@xxxxxxxxxxx> :::::: CC: Namjae Jeon <namjae.jeon@xxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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