Hi Marcel, I love your patch! Yet something to improve: [auto build test ERROR on bluetooth-next/master] [also build test ERROR on next-20200505] [cannot apply to v5.7-rc4] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Marcel-Holtmann/Patches-introducing-experimental-feature-support/20200506-103256 base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master config: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from include/linux/string.h:20, from include/linux/bitmap.h:9, from include/linux/nodemask.h:95, from include/linux/mmzone.h:17, from include/linux/gfp.h:6, from include/linux/umh.h:4, from include/linux/kmod.h:9, from include/linux/module.h:16, from net/bluetooth/mgmt.c:27: net/bluetooth/mgmt.c: In function 'exp_debug_feature_changed': >> net/bluetooth/mgmt.c:3746:18: error: 'debug_uuid' undeclared (first use in this function); did you mean 'bt_uuid'? 3746 | memcpy(ev.uuid, debug_uuid, 16); | ^~~~~~~~~~ arch/m68k/include/asm/string.h:72:45: note: in definition of macro 'memcpy' 72 | #define memcpy(d, s, n) __builtin_memcpy(d, s, n) | ^ net/bluetooth/mgmt.c:3746:18: note: each undeclared identifier is reported only once for each function it appears in 3746 | memcpy(ev.uuid, debug_uuid, 16); | ^~~~~~~~~~ arch/m68k/include/asm/string.h:72:45: note: in definition of macro 'memcpy' 72 | #define memcpy(d, s, n) __builtin_memcpy(d, s, n) | ^ At top level: net/bluetooth/mgmt.c:3741:12: warning: 'exp_debug_feature_changed' defined but not used [-Wunused-function] 3741 | static int exp_debug_feature_changed(bool enabled, struct sock *skip) | ^~~~~~~~~~~~~~~~~~~~~~~~~ vim +3746 net/bluetooth/mgmt.c 3740 3741 static int exp_debug_feature_changed(bool enabled, struct sock *skip) 3742 { 3743 struct mgmt_ev_exp_feature_changed ev; 3744 3745 memset(&ev, 0, sizeof(ev)); > 3746 memcpy(ev.uuid, debug_uuid, 16); 3747 ev.flags = cpu_to_le32(enabled ? BIT(0) : 0); 3748 3749 return mgmt_limited_event(MGMT_EV_EXP_FEATURE_CHANGED, NULL, 3750 &ev, sizeof(ev), 3751 HCI_MGMT_EXP_FEATURE_EVENTS, skip); 3752 } 3753 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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