Hi Julian, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.10.y head: 5f894e4a8758db7af6eeb43311c0e9314871b031 commit: 955da2b5cd9855b186f14b71ddb1703d5144193c [4013/4144] lib: fix kconfig dependency on ARCH_WANT_FRAME_POINTERS config: csky-buildonly-randconfig-r004-20210812 (attached as .config) compiler: csky-linux-gcc (GCC) 10.3.0 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://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.gi... git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git fetch --no-tags linux-stable-rc linux-5.10.y git checkout 955da2b5cd9855b186f14b71ddb1703d5144193c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=csky If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 98 | .sg_tablesize = LIBATA_DUMB_MAX_PRD, | ^~~~~~~~~~~~~~~~~~~ drivers/ata/pata_cs5520.c:98:19: note: (near initialization for 'cs5520_sht.sg_tablesize') -- In function 'sky2_name', inlined from 'sky2_probe.part.0' at drivers/net/ethernet/marvell/sky2.c:5049:2: 4903 | strncpy(buf, name[chipid - CHIP_ID_YUKON_XL], sz); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for LOCKDEP Depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT && (FRAME_POINTER || MIPS || PPC || S390 || MICROBLAZE || ARM || ARC || X86) Selected by - PROVE_LOCKING && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT - DEBUG_LOCK_ALLOC && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT vim +98 drivers/ata/pata_cs5520.c 669a5db411d85a Jeff Garzik 2006-08-29 95 669a5db411d85a Jeff Garzik 2006-08-29 96 static struct scsi_host_template cs5520_sht = { 68d1d07b510bb5 Tejun Heo 2008-03-25 97 ATA_BMDMA_SHT(DRV_NAME), d26fc9551a15fd Alan Cox 2007-07-06 @98 .sg_tablesize = LIBATA_DUMB_MAX_PRD, 669a5db411d85a Jeff Garzik 2006-08-29 99 }; 669a5db411d85a Jeff Garzik 2006-08-29 100 :::::: The code at line 98 was first introduced by commit :::::: d26fc9551a15fdad0d5de8376a78816b8af44f00 libata: Support chips with 64K PRD quirk :::::: TO: Alan Cox <alan(a)lxorguk.ukuu.org.uk&gt; :::::: CC: Jeff Garzik <jeff(a)garzik.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org