tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-4.4 head: 165087594d83615eb48f64ee09830ccccd7f4ae4 commit: 84502795da5c65ba8b93fc627ef315863976ea50 [3/214] BACKPORT: clk: add managed version of clk_bulk_get config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 7.5.0 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 git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel git fetch --no-tags chrome-os chromeos-4.4 git checkout 84502795da5c65ba8b93fc627ef315863976ea50 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-7.5.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): In file included from include/linux/cpumask.h:11:0, from include/linux/rcupdate.h:40, from include/linux/srcu.h:33, from include/linux/notifier.h:15, from include/linux/clk.h:17, from drivers/clk/clk-devres.c:7: include/linux/bitmap.h: In function 'bitmap_empty': include/linux/bitmap.h:310:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return find_first_bit(src, nbits) == nbits; ^~ include/linux/bitmap.h: In function 'bitmap_full': include/linux/bitmap.h:318:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return find_first_zero_bit(src, nbits) == nbits; ^~ In file included from drivers/clk/clk-devres.c:7:0: include/linux/clk.h: At top level: include/linux/clk.h:199:57: warning: 'struct clk_bulk_data' declared inside parameter list will not be visible outside of this definition or declaration static inline int clk_bulk_prepare(int num_clks, struct clk_bulk_data *clks) ^~~~~~~~~~~~~ include/linux/clk.h:223:60: warning: 'struct clk_bulk_data' declared inside parameter list will not be visible outside of this definition or declaration static inline void clk_bulk_unprepare(int num_clks, struct clk_bulk_data *clks) ^~~~~~~~~~~~~ include/linux/clk.h:268:17: warning: 'struct clk_bulk_data' declared inside parameter list will not be visible outside of this definition or declaration struct clk_bulk_data *clks); ^~~~~~~~~~~~~ include/linux/clk.h:283:15: warning: 'struct clk_bulk_data' declared inside parameter list will not be visible outside of this definition or declaration struct clk_bulk_data *clks); ^~~~~~~~~~~~~ include/linux/clk.h:327:19: warning: 'struct clk_bulk_data' declared inside parameter list will not be visible outside of this definition or declaration const struct clk_bulk_data *clks); ^~~~~~~~~~~~~ include/linux/clk.h:361:50: warning: 'struct clk_bulk_data' declared inside parameter list will not be visible outside of this definition or declaration void clk_bulk_disable(int num_clks, const struct clk_bulk_data *clks); ^~~~~~~~~~~~~ include/linux/clk.h:393:40: warning: 'struct clk_bulk_data' declared inside parameter list will not be visible outside of this definition or declaration void clk_bulk_put(int num_clks, struct clk_bulk_data *clks); ^~~~~~~~~~~~~ drivers/clk/clk-devres.c: In function 'devm_clk_bulk_release': clk_bulk_put(devres->num_clks, devres->clks); ^~~~~~ In file included from drivers/clk/clk-devres.c:7:0: include/linux/clk.h:393:6: note: expected 'struct clk_bulk_data *' but argument is of type 'struct clk_bulk_data *' void clk_bulk_put(int num_clks, struct clk_bulk_data *clks); ^~~~~~~~~~~~ drivers/clk/clk-devres.c: At top level: int __must_check devm_clk_bulk_get(struct device *dev, int num_clks, ^~~~~~~~~~~~~~~~~ In file included from drivers/clk/clk-devres.c:7:0: include/linux/clk.h:282:18: note: previous declaration of 'devm_clk_bulk_get' was here int __must_check devm_clk_bulk_get(struct device *dev, int num_clks, ^~~~~~~~~~~~~~~~~ drivers/clk/clk-devres.c: In function 'devm_clk_bulk_get': ret = clk_bulk_get(dev, num_clks, clks); ^~~~ In file included from drivers/clk/clk-devres.c:7:0: include/linux/clk.h:267:18: note: expected 'struct clk_bulk_data *' but argument is of type 'struct clk_bulk_data *' int __must_check clk_bulk_get(struct device *dev, int num_clks, ^~~~~~~~~~~~ In file included from include/linux/linkage.h:6:0, from include/linux/kernel.h:6, from include/linux/clk.h:16, from drivers/clk/clk-devres.c:7: drivers/clk/clk-devres.c: At top level: drivers/clk/clk-devres.c:71:19: error: conflicting types for 'devm_clk_bulk_get' EXPORT_SYMBOL_GPL(devm_clk_bulk_get); ^ include/linux/export.h:57:21: note: in definition of macro '__EXPORT_SYMBOL' extern typeof(sym) sym; \ ^~~ drivers/clk/clk-devres.c:71:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL' EXPORT_SYMBOL_GPL(devm_clk_bulk_get); ^~~~~~~~~~~~~~~~~ In file included from drivers/clk/clk-devres.c:7:0: include/linux/clk.h:282:18: note: previous declaration of 'devm_clk_bulk_get' was here int __must_check devm_clk_bulk_get(struct device *dev, int num_clks, ^~~~~~~~~~~~~~~~~ vim +/devm_clk_bulk_get +49 drivers/clk/clk-devres.c 41 42 static void devm_clk_bulk_release(struct device *dev, void *res) 43 { 44 struct clk_bulk_devres *devres = res; 45 47 } 48 50 struct clk_bulk_data *clks) 51 { 52 struct clk_bulk_devres *devres; 53 int ret; 54 55 devres = devres_alloc(devm_clk_bulk_release, 56 sizeof(*devres), GFP_KERNEL); 57 if (!devres) 58 return -ENOMEM; 59 61 if (!ret) { 62 devres->clks = clks; 63 devres->num_clks = num_clks; 64 devres_add(dev, devres); 65 } else { 66 devres_free(devres); 67 } 68 69 return ret; 70 } 71 EXPORT_SYMBOL_GPL(devm_clk_bulk_get); 72 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org