Hi Lin, [auto build test ERROR on rockchip/for-next] [cannot apply to v4.8-rc3 next-20160825] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] [Suggest to use git(>=2.9.0) format-patch --base= (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on] [Check https://git-scm.com/docs/git-format-patch for more information] url: https://github.com/0day-ci/linux/commits/Lin-Huang/rk3399-support-ddr-frequency-scaling/20160822-114057 base: https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git for-next config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 5.4.0-6) 5.4.0 20160609 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm All errors (new ones prefixed by >>): In file included from drivers/gpu/drm/rockchip/rockchip_drm_vop.c:16:0: >> include/linux/devfreq-event.h:190:21: error: redefinition of 'devfreq_event_get_drvdata' static inline void *devfreq_event_get_drvdata(struct devfreq_event_dev *edev) ^ include/linux/devfreq-event.h:151:21: note: previous definition of 'devfreq_event_get_drvdata' was here static inline void *devfreq_event_get_drvdata(struct devfreq_event_dev *edev) ^ vim +/devfreq_event_get_drvdata +190 include/linux/devfreq-event.h f262f28c Chanwoo Choi 2015-01-26 184 f262f28c Chanwoo Choi 2015-01-26 185 static inline void devm_devfreq_event_remove_edev(struct device *dev, f262f28c Chanwoo Choi 2015-01-26 186 struct devfreq_event_dev *edev) f262f28c Chanwoo Choi 2015-01-26 187 { f262f28c Chanwoo Choi 2015-01-26 188 } f262f28c Chanwoo Choi 2015-01-26 189 f262f28c Chanwoo Choi 2015-01-26 @190 static inline void *devfreq_event_get_drvdata(struct devfreq_event_dev *edev) f262f28c Chanwoo Choi 2015-01-26 191 { f262f28c Chanwoo Choi 2015-01-26 192 return NULL; f262f28c Chanwoo Choi 2015-01-26 193 } :::::: The code at line 190 was first introduced by commit :::::: f262f28c147051e7aa6daaf4fb5996833ffadff4 PM / devfreq: event: Add devfreq_event class :::::: TO: Chanwoo Choi :::::: CC: MyungJoo Ham --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation