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charset=us-ascii Content-Disposition: inline In-Reply-To: <20250923-loopback_mhi-v1-2-8618f31f44aa@oss.qualcomm.com> Hi Sumit, kernel test robot noticed the following build errors: [auto build test ERROR on e6b9dce0aeeb91dfc0974ab87f02454e24566182] url: https://github.com/intel-lab-lkp/linux/commits/Sumit-Kumar/bus-mhi-host-Add-loopback-driver-with-sysfs-interface/20250923-144109 base: e6b9dce0aeeb91dfc0974ab87f02454e24566182 patch link: https://lore.kernel.org/r/20250923-loopback_mhi-v1-2-8618f31f44aa%40oss.qualcomm.com patch subject: [PATCH 2/2] bus: mhi: ep: Add loopback driver for data path testing config: loongarch-randconfig-001-20250929 (https://download.01.org/0day-ci/archive/20250929/202509290238.4kkJL0x5-lkp@intel.com/config) compiler: loongarch64-linux-gcc (GCC) 12.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250929/202509290238.4kkJL0x5-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202509290238.4kkJL0x5-lkp@intel.com/ All errors (new ones prefixed by >>): loongarch64-linux-ld: drivers/bus/mhi/ep/mhi_ep_loopback.o: in function `mhi_ep_loopback_dl_callback': >> mhi_ep_loopback.c:(.text+0x20): undefined reference to `sk_skb_reason_drop' loongarch64-linux-ld: drivers/bus/mhi/ep/mhi_ep_loopback.o: in function `mhi_ep_loopback_work_handler': mhi_ep_loopback.c:(.text+0x74): undefined reference to `sk_skb_reason_drop' loongarch64-linux-ld: drivers/bus/mhi/ep/mhi_ep_loopback.o: in function `mhi_ep_loopback_ul_callback': >> mhi_ep_loopback.c:(.text+0x19c): undefined reference to `__alloc_skb' >> loongarch64-linux-ld: mhi_ep_loopback.c:(.text+0x1e4): undefined reference to `skb_put' >> loongarch64-linux-ld: mhi_ep_loopback.c:(.text+0x2b8): undefined reference to `sk_skb_reason_drop' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki