Hi Dai, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on nfs/linux-next] [also build test WARNING on v5.12-rc5 next-20210401] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Dai-Ngo/enhance-NFSv4-2-SSC-to-delay-unmount-source-s-export/20210402-071534 base: git://git.linux-nfs.org/projects/trondmy/linux-nfs.git linux-next config: mips-allyesconfig (attached as .config) compiler: mips-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://github.com/0day-ci/linux/commit/84c442c7d2275ebcf694b23503725a5a5d7895e5 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Dai-Ngo/enhance-NFSv4-2-SSC-to-delay-unmount-source-s-export/20210402-071534 git checkout 84c442c7d2275ebcf694b23503725a5a5d7895e5 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> fs/nfsd/nfs4proc.c:81:6: warning: no previous prototype for 'nfsd4_ssc_expire_umount' [-Wmissing-prototypes] 81 | void nfsd4_ssc_expire_umount(struct work_struct *work) | ^~~~~~~~~~~~~~~~~~~~~~~ vim +/nfsd4_ssc_expire_umount +81 fs/nfsd/nfs4proc.c 80 > 81 void nfsd4_ssc_expire_umount(struct work_struct *work) 82 { 83 struct nfsd4_ssc_umount_item *ni = 0; 84 struct nfsd4_ssc_umount_item *tmp; 85 86 down_write(&nfsd4_ssc_umount.nsu_sem); 87 spin_lock(&nfsd4_ssc_umount.nsu_lock); 88 list_for_each_entry_safe(ni, tmp, &nfsd4_ssc_umount.nsu_list, nsui_list) { 89 if (time_after(jiffies, ni->nsui_expire)) { 90 list_del(&ni->nsui_list); 91 cancel_delayed_work(&nfsd4_ssc_umount.nsu_umount_work); 92 spin_unlock(&nfsd4_ssc_umount.nsu_lock); 93 up_write(&nfsd4_ssc_umount.nsu_sem); 94 95 mntput(ni->nsui_vfsmount); 96 kfree(ni); 97 98 down_write(&nfsd4_ssc_umount.nsu_sem); 99 spin_lock(&nfsd4_ssc_umount.nsu_lock); 100 continue; 101 } 102 break; 103 } 104 nfsd4_scc_update_umnt_timo(); 105 spin_unlock(&nfsd4_ssc_umount.nsu_lock); 106 up_write(&nfsd4_ssc_umount.nsu_sem); 107 } 108 EXPORT_SYMBOL_GPL(nfsd4_ssc_expire_umount); 109 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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