tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git master head: 4608a726c66807c27bc7d91bdf8a288254e29985 commit: 97ad4031e29521894fc28765f14247e79b0ef263 [11860/13492] nfsd4: add a client info file reproduce: # apt-get install sparse # sparse version: v0.6.1-rc1-7-g2b96cd8-dirty git checkout 97ad4031e29521894fc28765f14247e79b0ef263 make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> fs/nfsd/nfsctl.c:1221:22: sparse: sparse: symbol '__get_nfsdfs_client' was not declared. Should it be static? Please review and possibly fold the followup patch. --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation