Hi Viorel, FYI, the error/warning still remains. tree: https://github.com/Freescale/linux-fslc pr/300 head: e9a7181f47e007a9866934b3ff51bb6c3d22b9e2 commit: 02f2735702118a80b3beb9626de5d14de0e32d73 [14894/18036] MLK-24965: ASoC: fsl_xcvr: bit and timestamp counters config: h8300-randconfig-r013-20210408 (attached as .config) compiler: h8300-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/Freescale/linux-fslc/commit/02f2735702118a80b3beb9626d... git remote add freescale-fslc https://github.com/Freescale/linux-fslc git fetch --no-tags freescale-fslc pr/300 git checkout 02f2735702118a80b3beb9626de5d14de0e32d73 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=h8300 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 >>): In file included from include/linux/err.h:5, from include/linux/clk.h:12, from sound/soc/fsl/fsl_xcvr_sysfs.c:4: include/linux/scatterlist.h: In function 'sg_set_buf': include/asm-generic/page.h:93:50: warning: ordered comparison of pointer with null pointer [-Wextra] 93 | #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ | ^~ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~ include/linux/scatterlist.h:143:10: note: in expansion of macro 'virt_addr_valid' 143 | BUG_ON(!virt_addr_valid(buf)); | ^~~~~~~~~~~~~~~ sound/soc/fsl/fsl_xcvr_sysfs.c: In function 'fsl_xcvr_get_attr_grp': 106 | const struct attribute_group *fsl_xcvr_get_attr_grp() | ^~~~~~~~~~~~~~~~~~~~~ vim +106 sound/soc/fsl/fsl_xcvr_sysfs.c 105 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org