Hi Song, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: git://git.kernel.org/pub/scm/linux/kernel/git/song/md.git module_alloc_test head: 7b05e9e4784401342805814b52f3dab621fdb1d1 commit: d4dbd22faf1717ce798327b60fc98cd5b7628ec8 [5/6] powerpc/module: use module_alloc_type config: powerpc-pcm030_defconfig (https://download.01.org/0day-ci/archive/20230519/202305191501.WQ9TlGuW-lkp@xxxxxxxxx/config) compiler: powerpc-linux-gcc (GCC) 12.1.0 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/song/md.git/commit/?id=d4dbd22faf1717ce798327b60fc98cd5b7628ec8 git remote add song-md git://git.kernel.org/pub/scm/linux/kernel/git/song/md.git git fetch --no-tags song-md module_alloc_test git checkout d4dbd22faf1717ce798327b60fc98cd5b7628ec8 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202305191501.WQ9TlGuW-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): arch/powerpc/kernel/module.c: In function 'module_alloc_type_init': >> arch/powerpc/kernel/module.c:108:15: error: unused variable 'ptr' [-Werror=unused-variable] 108 | void *ptr = NULL; | ^~~ cc1: all warnings being treated as errors vim +/ptr +108 arch/powerpc/kernel/module.c d4dbd22faf1717 Song Liu 2023-05-17 98 d4dbd22faf1717 Song Liu 2023-05-17 99 void __init module_alloc_type_init(struct mod_allocators *allocators) 2ec13df167040c Christophe Leroy 2021-04-01 100 { 4fcc636615b1a3 Jordan Niethe 2021-06-09 101 pgprot_t prot = strict_module_rwx_enabled() ? PAGE_KERNEL : PAGE_KERNEL_EXEC; d4dbd22faf1717 Song Liu 2023-05-17 102 struct mod_alloc_params *params = &powerpc_mod_type_allocator.params; d4dbd22faf1717 Song Liu 2023-05-17 103 struct vmalloc_params *vmp = ¶ms->vmp[0]; d4dbd22faf1717 Song Liu 2023-05-17 104 int i; 4fcc636615b1a3 Jordan Niethe 2021-06-09 105 8abddd968a303d Nicholas Piggin 2021-05-03 106 #ifdef MODULES_VADDR 2ec13df167040c Christophe Leroy 2021-04-01 107 unsigned long limit = (unsigned long)_etext - SZ_32M; 2ec13df167040c Christophe Leroy 2021-04-01 @108 void *ptr = NULL; :::::: The code at line 108 was first introduced by commit :::::: 2ec13df167040cd153c25c4d96d0ffc573ac4c40 powerpc/modules: Load modules closer to kernel text :::::: TO: Christophe Leroy <christophe.leroy@xxxxxxxxxx> :::::: CC: Michael Ellerman <mpe@xxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
