Hi Aditi, Thank you for the patch! Yet something to improve: [auto build test ERROR on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Aditi-Ghag/bpf-tcp-Avoid-taking-fast-sock-lock-in-iterator/20230330-232137 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20230330151758.531170-4-aditi.ghag%40isovalent.com patch subject: [PATCH v5 bpf-next 3/7] udp: seq_file: Helper function to match socket attributes config: parisc-defconfig (https://download.01.org/0day-ci/archive/20230331/202303310242.QYEDFSaE-lkp@xxxxxxxxx/config) compiler: hppa-linux-gcc (GCC) 12.1.0 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/intel-lab-lkp/linux/commit/66cc617bebf6cb3d2162587d6e248d86bc59c1c2 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Aditi-Ghag/bpf-tcp-Avoid-taking-fast-sock-lock-in-iterator/20230330-232137 git checkout 66cc617bebf6cb3d2162587d6e248d86bc59c1c2 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=parisc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=parisc SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303310242.QYEDFSaE-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): >> net/ipv4/udp.c:2986:20: warning: 'seq_sk_match' used but never defined 2986 | static inline bool seq_sk_match(struct seq_file *seq, const struct sock *sk); | ^~~~~~~~~~~~ -- hppa-linux-ld: net/ipv4/udp.o: in function `udp_get_first': >> (.text+0x11b0): undefined reference to `seq_sk_match' hppa-linux-ld: net/ipv4/udp.o: in function `udp_get_next': (.text+0x123c): undefined reference to `seq_sk_match' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests