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Subject[brauner:fs.idmapped.ceph.v1 2/13] fs/ceph/mds_client.c:867:17: error: implicit declaration of function 'put_user_ns'; did you mean 'mnt_user_ns'?
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git fs.idmapped.ceph.v1
head: 30a5a5c4f340adfbb605745447b34b792289674e
commit: 8fa98c6cdae01551392c9fe50e02ff941b8cedec [2/13] ceph: stash idmapping in mdsc request
config: arm-randconfig-c002-20220105 (https://download.01.org/0day-ci/archive/20220105/202201051208.bhHC5D02-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
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/brauner/linux.git/commit/?id=8fa98c6cdae01551392c9fe50e02ff941b8cedec
git remote add brauner https://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git
git fetch --no-tags brauner fs.idmapped.ceph.v1
git checkout 8fa98c6cdae01551392c9fe50e02ff941b8cedec
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash fs/ceph/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

fs/ceph/mds_client.c: In function 'ceph_mdsc_release_request':
>> fs/ceph/mds_client.c:867:17: error: implicit declaration of function 'put_user_ns'; did you mean 'mnt_user_ns'? [-Werror=implicit-function-declaration]
867 | put_user_ns(req->mnt_userns);
| ^~~~~~~~~~~
| mnt_user_ns
fs/ceph/mds_client.c: In function '__register_request':
>> fs/ceph/mds_client.c:927:17: error: implicit declaration of function 'get_user_ns'; did you mean 'seq_user_ns'? [-Werror=implicit-function-declaration]
927 | get_user_ns(req->mnt_userns);
| ^~~~~~~~~~~
| seq_user_ns
cc1: some warnings being treated as errors


vim +867 fs/ceph/mds_client.c

827
828 void ceph_mdsc_release_request(struct kref *kref)
829 {
830 struct ceph_mds_request *req = container_of(kref,
831 struct ceph_mds_request,
832 r_kref);
833 ceph_mdsc_release_dir_caps_no_check(req);
834 destroy_reply_info(&req->r_reply_info);
835 if (req->r_request)
836 ceph_msg_put(req->r_request);
837 if (req->r_reply)
838 ceph_msg_put(req->r_reply);
839 if (req->r_inode) {
840 ceph_put_cap_refs(ceph_inode(req->r_inode), CEPH_CAP_PIN);
841 iput(req->r_inode);
842 }
843 if (req->r_parent) {
844 ceph_put_cap_refs(ceph_inode(req->r_parent), CEPH_CAP_PIN);
845 iput(req->r_parent);
846 }
847 iput(req->r_target_inode);
848 if (req->r_dentry)
849 dput(req->r_dentry);
850 if (req->r_old_dentry)
851 dput(req->r_old_dentry);
852 if (req->r_old_dentry_dir) {
853 /*
854 * track (and drop pins for) r_old_dentry_dir
855 * separately, since r_old_dentry's d_parent may have
856 * changed between the dir mutex being dropped and
857 * this request being freed.
858 */
859 ceph_put_cap_refs(ceph_inode(req->r_old_dentry_dir),
860 CEPH_CAP_PIN);
861 iput(req->r_old_dentry_dir);
862 }
863 kfree(req->r_path1);
864 kfree(req->r_path2);
865 put_cred(req->r_cred);
866 if (!initial_idmapping(req->mnt_userns))
> 867 put_user_ns(req->mnt_userns);
868 if (req->r_pagelist)
869 ceph_pagelist_release(req->r_pagelist);
870 put_request_session(req);
871 ceph_unreserve_caps(req->r_mdsc, &req->r_caps_reservation);
872 WARN_ON_ONCE(!list_empty(&req->r_wait));
873 kmem_cache_free(ceph_mds_request_cachep, req);
874 }
875
876 DEFINE_RB_FUNCS(request, struct ceph_mds_request, r_tid, r_node)
877
878 /*
879 * lookup session, bump ref if found.
880 *
881 * called under mdsc->mutex.
882 */
883 static struct ceph_mds_request *
884 lookup_get_request(struct ceph_mds_client *mdsc, u64 tid)
885 {
886 struct ceph_mds_request *req;
887
888 req = lookup_request(&mdsc->request_tree, tid);
889 if (req)
890 ceph_mdsc_get_request(req);
891
892 return req;
893 }
894
895 /*
896 * Register an in-flight request, and assign a tid. Link to directory
897 * are modifying (if any).
898 *
899 * Called under mdsc->mutex.
900 */
901 static void __register_request(struct ceph_mds_client *mdsc,
902 struct ceph_mds_request *req,
903 struct inode *dir)
904 {
905 int ret = 0;
906
907 req->r_tid = ++mdsc->last_tid;
908 if (req->r_num_caps) {
909 ret = ceph_reserve_caps(mdsc, &req->r_caps_reservation,
910 req->r_num_caps);
911 if (ret < 0) {
912 pr_err("__register_request %p "
913 "failed to reserve caps: %d\n", req, ret);
914 /* set req->r_err to fail early from __do_request */
915 req->r_err = ret;
916 return;
917 }
918 }
919 dout("__register_request %p tid %lld\n", req, req->r_tid);
920 ceph_mdsc_get_request(req);
921 insert_request(&mdsc->request_tree, req);
922
923 req->r_cred = get_current_cred();
924 if (!req->mnt_userns)
925 req->mnt_userns = &init_user_ns;
926 else
> 927 get_user_ns(req->mnt_userns);
928
929 if (mdsc->oldest_tid == 0 && req->r_op != CEPH_MDS_OP_SETFILELOCK)
930 mdsc->oldest_tid = req->r_tid;
931
932 if (dir) {
933 struct ceph_inode_info *ci = ceph_inode(dir);
934
935 ihold(dir);
936 req->r_unsafe_dir = dir;
937 spin_lock(&ci->i_unsafe_lock);
938 list_add_tail(&req->r_unsafe_dir_item, &ci->i_unsafe_dirops);
939 spin_unlock(&ci->i_unsafe_lock);
940 }
941 }
942

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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