Hi Ankur, Thank you for the patch! Yet something to improve:
[auto build test ERROR on tip/master] [also build test ERROR on linus/master next-20201013] [cannot apply to tip/x86/core linux/master v5.9] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Ankur-Arora/Use-uncached-writes-while-clearing-gigantic-pages/20201014-163720 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 80f92ca9b86c71450f003d39956fca4327cc5586 config: arm64-randconfig-r001-20201014 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project e7fe3c6dfede8d5781bd000741c3dea7088307a4) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/0day-ci/linux/commit/6a1ec80588fc845c7ce6bd0e0e3635bf07d9110d git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ankur-Arora/Use-uncached-writes-while-clearing-gigantic-pages/20201014-163720 git checkout 6a1ec80588fc845c7ce6bd0e0e3635bf07d9110d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All errors (new ones prefixed by >>): In file included from arch/arm64/kernel/asm-offsets.c:16: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:22: In file included from include/linux/writeback.h:14: In file included from include/linux/blk-cgroup.h:23: In file included from include/linux/blkdev.h:13: In file included from include/linux/pagemap.h:11: >> include/linux/highmem.h:240:2: error: implicit declaration of function >> 'clear_user_page_uncached' [-Werror,-Wimplicit-function-declaration] clear_user_page_uncached(addr, vaddr, page); ^ include/linux/highmem.h:240:2: note: did you mean 'clear_user_highpage_uncached'? include/linux/highmem.h:236:20: note: 'clear_user_highpage_uncached' declared here static inline void clear_user_highpage_uncached(struct page *page, unsigned long vaddr) ^ 1 error generated. make[2]: *** [scripts/Makefile.build:117: arch/arm64/kernel/asm-offsets.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1198: prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:185: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +/clear_user_page_uncached +240 include/linux/highmem.h 234 235 #ifndef clear_user_highpage_uncached 236 static inline void clear_user_highpage_uncached(struct page *page, unsigned long vaddr) 237 { 238 void *addr = kmap_atomic(page); 239 > 240 clear_user_page_uncached(addr, vaddr, page); 241 kunmap_atomic(addr); 242 } 243 #endif 244 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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