tree: https://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux.git module-cleanup

head: a1031af5d5028424702be365a903b83554830fb2 commit: b54ea5ff875ffe75b6cebc86f9d8f37c0b89c48a [7/13] module: mark module_mutex static config: powerpc-allmodconfig (attached as .config) compiler: powerpc64-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://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux.git/commit/?id... git remote add jeyu https://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux.git git fetch --no-tags jeyu module-cleanup git checkout b54ea5ff875ffe75b6cebc86f9d8f37c0b89c48a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from include/linux/seqlock.h:19, from include/linux/mmzone.h:16, 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 arch/powerpc/platforms/powernv/pci-cxl.c:6: arch/powerpc/platforms/powernv/pci-cxl.c: In function 'get_cxl_module': >> arch/powerpc/platforms/powernv/pci-cxl.c:159:14: error: 'module_mutex' undeclared (first use in this function); did you mean 'module_put'? 159 | mutex_lock(&module_mutex); | ^~~~~~~~~~~~ include/linux/mutex.h:167:44: note: in definition of macro 'mutex_lock' 167 | #define mutex_lock(lock) mutex_lock_nested(lock, 0) | ^~~~ arch/powerpc/platforms/powernv/pci-cxl.c:159:14: note: each undeclared identifier is reported only once for each function it appears in 159 | mutex_lock(&module_mutex); | ^~~~~~~~~~~~ include/linux/mutex.h:167:44: note: in definition of macro 'mutex_lock' 167 | #define mutex_lock(lock) mutex_lock_nested(lock, 0) | ^~~~ vim +159 arch/powerpc/platforms/powernv/pci-cxl.c 4361b03430d685 Ian Munsie 2016-07-14 153 c2ca9f6b4cc4c4 Ian Munsie 2016-07-19 154 #if IS_MODULE(CONFIG_CXL) c2ca9f6b4cc4c4 Ian Munsie 2016-07-19 155 static inline int get_cxl_module(void) c2ca9f6b4cc4c4 Ian Munsie 2016-07-19 156 { c2ca9f6b4cc4c4 Ian Munsie 2016-07-19 157 struct module *cxl_module; c2ca9f6b4cc4c4 Ian Munsie 2016-07-19 158 c2ca9f6b4cc4c4 Ian Munsie 2016-07-19 @159 mutex_lock(&module_mutex); :::::: The code at line 159 was first introduced by commit :::::: c2ca9f6b4cc4c45eb598b24b8b06beee668052d5 powerpc/powernv: Fix pci-cxl.c build when CONFIG_MODULES=n :::::: TO: Ian Munsie <imunsie(a)au1.ibm.com&gt; :::::: CC: Michael Ellerman <mpe(a)ellerman.id.au&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

+++ Christoph Hellwig [10/02/21 08:32 +0100]: > On Wed, Feb 10, 2021 at 05:23:49AM +0800, kernel test robot wrote: >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux.git >> module-cleanup > > The message looks like "powerpc/powernv: remove get_cxl_module" is > missing > the the tree, but the both the tree I checked out and gitweb show it > present.  Weird. It's safe to ignore this module-cleanup branch, that was just testing for the earlier patchsets :) modules-next has the most up to date patches and kbuild reported build success for that branch (which also tested powerpc allyesconfig, without running into that build issue Stephen reported. I still find that strange. Maybe it's toolchain related..)