Hi "Matthew, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on next-20210629] [cannot apply to hnaz-linux-mm/master tip/perf/core cgroup/for-next v5.13] [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/Matthew-Wilcox-Oracle/Folio-conversion-of-memcg/20210630-121408 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 007b350a58754a93ca9fe50c498cc27780171153 config: x86_64-randconfig-a003-20210628 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8d21d5472501460933e78aead04cf59579025ba4) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/615adf6169006fa1bc5e19d2105ff9a333bef423 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Matthew-Wilcox-Oracle/Folio-conversion-of-memcg/20210630-121408 git checkout 615adf6169006fa1bc5e19d2105ff9a333bef423 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=x86_64 olddefconfig If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from arch/x86/kernel/asm-offsets.c:13: 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:13: In file included from include/linux/cgroup.h:28: In file included from include/linux/cgroup-defs.h:22: In file included from include/linux/bpf-cgroup.h:5: In file included from include/linux/bpf.h:20: In file included from include/linux/kallsyms.h:12: include/linux/mm.h:1382:42: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline int folio_nid(const struct folio *folio) ^ include/linux/mm.h:1384:27: error: incomplete definition of type 'struct folio' return page_to_nid(&folio->page); ~~~~~^ include/linux/mm.h:1382:42: note: forward declaration of 'struct folio' static inline int folio_nid(const struct folio *folio) ^ In file included from arch/x86/kernel/asm-offsets.c:13: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: include/linux/memcontrol.h:375:44: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline bool folio_memcg_kmem(struct folio *folio); ^ include/linux/memcontrol.h:399:55: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline struct mem_cgroup *__folio_memcg(struct folio *folio) ^ >> include/linux/memcontrol.h:401:34: error: incomplete definition of type 'struct folio' unsigned long memcg_data = folio->memcg_data; ~~~~~^ include/linux/memcontrol.h:399:55: note: forward declaration of 'struct folio' static inline struct mem_cgroup *__folio_memcg(struct folio *folio) ^ >> include/linux/memcontrol.h:403:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio_slab(folio), folio); ^ >> include/linux/memcontrol.h:403:18: error: implicit declaration of function 'folio_slab' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio_slab(folio), folio); ^ include/linux/memcontrol.h:420:55: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline struct obj_cgroup *__folio_objcg(struct folio *folio) ^ include/linux/memcontrol.h:422:34: error: incomplete definition of type 'struct folio' unsigned long memcg_data = folio->memcg_data; ~~~~~^ include/linux/memcontrol.h:420:55: note: forward declaration of 'struct folio' static inline struct obj_cgroup *__folio_objcg(struct folio *folio) ^ include/linux/memcontrol.h:424:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio_slab(folio), folio); ^ include/linux/memcontrol.h:424:18: error: implicit declaration of function 'folio_slab' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio_slab(folio), folio); ^ include/linux/memcontrol.h:451:53: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline struct mem_cgroup *folio_memcg(struct folio *folio) ^ include/linux/memcontrol.h:453:23: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types] if (folio_memcg_kmem(folio)) ^~~~~ include/linux/memcontrol.h:375:51: note: passing argument to parameter 'folio' here static inline bool folio_memcg_kmem(struct folio *folio); ^ include/linux/memcontrol.h:454:41: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types] return obj_cgroup_memcg(__folio_objcg(folio)); ^~~~~ include/linux/memcontrol.h:420:62: note: passing argument to parameter 'folio' here static inline struct obj_cgroup *__folio_objcg(struct folio *folio) ^ include/linux/memcontrol.h:456:24: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types] return __folio_memcg(folio); ^~~~~ include/linux/memcontrol.h:399:62: note: passing argument to parameter 'folio' here static inline struct mem_cgroup *__folio_memcg(struct folio *folio) ^ include/linux/memcontrol.h:461:21: error: implicit declaration of function 'page_folio' [-Werror,-Wimplicit-function-declaration] return folio_memcg(page_folio(page)); ^ include/linux/memcontrol.h:461:21: warning: incompatible integer to pointer conversion passing 'int' to parameter of type 'struct folio *' [-Wint-conversion] return folio_memcg(page_folio(page)); ^~~~~~~~~~~~~~~~ include/linux/memcontrol.h:451:60: note: passing argument to parameter 'folio' here static inline struct mem_cgroup *folio_memcg(struct folio *folio) ^ include/linux/memcontrol.h:541:44: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:541:20: error: conflicting types for 'folio_memcg_kmem' static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:375:20: note: previous declaration is here static inline bool folio_memcg_kmem(struct folio *folio); ^ include/linux/memcontrol.h:543:35: error: incomplete definition of type 'struct folio' VM_BUG_ON_PGFLAGS(PageTail(&folio->page), &folio->page); ~~~~~^ include/linux/mmdebug.h:76:60: note: expanded from macro 'VM_BUG_ON_PGFLAGS' #define VM_BUG_ON_PGFLAGS(cond, page) BUILD_BUG_ON_INVALID(cond) ^~~~ include/linux/build_bug.h:30:63: note: expanded from macro 'BUILD_BUG_ON_INVALID' #define BUILD_BUG_ON_INVALID(e) ((void)(sizeof((__force long)(e)))) ^ include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio' static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:544:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio->memcg_data & MEMCG_DATA_OBJCGS, folio); ^ include/linux/memcontrol.h:544:23: error: incomplete definition of type 'struct folio' VM_BUG_ON_FOLIO(folio->memcg_data & MEMCG_DATA_OBJCGS, folio); ~~~~~^ include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio' static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:545:14: error: incomplete definition of type 'struct folio' return folio->memcg_data & MEMCG_DATA_KMEM; ~~~~~^ include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio' static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:607:26: error: implicit declaration of function 'page_folio' [-Werror,-Wimplicit-function-declaration] return folio_memcg_kmem(page_folio(page)); ^ include/linux/memcontrol.h:607:26: warning: incompatible integer to pointer conversion passing 'int' to parameter of type 'struct folio *' [-Wint-conversion] return folio_memcg_kmem(page_folio(page)); ^~~~~~~~~~~~~~~~ include/linux/memcontrol.h:375:51: note: passing argument to parameter 'folio' here static inline bool folio_memcg_kmem(struct folio *folio); ^ 8 warnings and 17 errors generated. -- In file included from arch/x86/kernel/asm-offsets.c:13: 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:13: In file included from include/linux/cgroup.h:28: In file included from include/linux/cgroup-defs.h:22: In file included from include/linux/bpf-cgroup.h:5: In file included from include/linux/bpf.h:20: In file included from include/linux/kallsyms.h:12: include/linux/mm.h:1382:42: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline int folio_nid(const struct folio *folio) ^ include/linux/mm.h:1384:27: error: incomplete definition of type 'struct folio' return page_to_nid(&folio->page); ~~~~~^ include/linux/mm.h:1382:42: note: forward declaration of 'struct folio' static inline int folio_nid(const struct folio *folio) ^ In file included from arch/x86/kernel/asm-offsets.c:13: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: include/linux/memcontrol.h:375:44: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline bool folio_memcg_kmem(struct folio *folio); ^ include/linux/memcontrol.h:399:55: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline struct mem_cgroup *__folio_memcg(struct folio *folio) ^ >> include/linux/memcontrol.h:401:34: error: incomplete definition of type 'struct folio' unsigned long memcg_data = folio->memcg_data; ~~~~~^ include/linux/memcontrol.h:399:55: note: forward declaration of 'struct folio' static inline struct mem_cgroup *__folio_memcg(struct folio *folio) ^ >> include/linux/memcontrol.h:403:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio_slab(folio), folio); ^ >> include/linux/memcontrol.h:403:18: error: implicit declaration of function 'folio_slab' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio_slab(folio), folio); ^ include/linux/memcontrol.h:420:55: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline struct obj_cgroup *__folio_objcg(struct folio *folio) ^ include/linux/memcontrol.h:422:34: error: incomplete definition of type 'struct folio' unsigned long memcg_data = folio->memcg_data; ~~~~~^ include/linux/memcontrol.h:420:55: note: forward declaration of 'struct folio' static inline struct obj_cgroup *__folio_objcg(struct folio *folio) ^ include/linux/memcontrol.h:424:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio_slab(folio), folio); ^ include/linux/memcontrol.h:424:18: error: implicit declaration of function 'folio_slab' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio_slab(folio), folio); ^ include/linux/memcontrol.h:451:53: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline struct mem_cgroup *folio_memcg(struct folio *folio) ^ include/linux/memcontrol.h:453:23: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types] if (folio_memcg_kmem(folio)) ^~~~~ include/linux/memcontrol.h:375:51: note: passing argument to parameter 'folio' here static inline bool folio_memcg_kmem(struct folio *folio); ^ include/linux/memcontrol.h:454:41: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types] return obj_cgroup_memcg(__folio_objcg(folio)); ^~~~~ include/linux/memcontrol.h:420:62: note: passing argument to parameter 'folio' here static inline struct obj_cgroup *__folio_objcg(struct folio *folio) ^ include/linux/memcontrol.h:456:24: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types] return __folio_memcg(folio); ^~~~~ include/linux/memcontrol.h:399:62: note: passing argument to parameter 'folio' here static inline struct mem_cgroup *__folio_memcg(struct folio *folio) ^ include/linux/memcontrol.h:461:21: error: implicit declaration of function 'page_folio' [-Werror,-Wimplicit-function-declaration] return folio_memcg(page_folio(page)); ^ include/linux/memcontrol.h:461:21: warning: incompatible integer to pointer conversion passing 'int' to parameter of type 'struct folio *' [-Wint-conversion] return folio_memcg(page_folio(page)); ^~~~~~~~~~~~~~~~ include/linux/memcontrol.h:451:60: note: passing argument to parameter 'folio' here static inline struct mem_cgroup *folio_memcg(struct folio *folio) ^ include/linux/memcontrol.h:541:44: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:541:20: error: conflicting types for 'folio_memcg_kmem' static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:375:20: note: previous declaration is here static inline bool folio_memcg_kmem(struct folio *folio); ^ include/linux/memcontrol.h:543:35: error: incomplete definition of type 'struct folio' VM_BUG_ON_PGFLAGS(PageTail(&folio->page), &folio->page); ~~~~~^ include/linux/mmdebug.h:76:60: note: expanded from macro 'VM_BUG_ON_PGFLAGS' #define VM_BUG_ON_PGFLAGS(cond, page) BUILD_BUG_ON_INVALID(cond) ^~~~ include/linux/build_bug.h:30:63: note: expanded from macro 'BUILD_BUG_ON_INVALID' #define BUILD_BUG_ON_INVALID(e) ((void)(sizeof((__force long)(e)))) ^ include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio' static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:544:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio->memcg_data & MEMCG_DATA_OBJCGS, folio); ^ include/linux/memcontrol.h:544:23: error: incomplete definition of type 'struct folio' VM_BUG_ON_FOLIO(folio->memcg_data & MEMCG_DATA_OBJCGS, folio); ~~~~~^ include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio' static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:545:14: error: incomplete definition of type 'struct folio' return folio->memcg_data & MEMCG_DATA_KMEM; ~~~~~^ include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio' static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:607:26: error: implicit declaration of function 'page_folio' [-Werror,-Wimplicit-function-declaration] return folio_memcg_kmem(page_folio(page)); ^ include/linux/memcontrol.h:607:26: warning: incompatible integer to pointer conversion passing 'int' to parameter of type 'struct folio *' [-Wint-conversion] return folio_memcg_kmem(page_folio(page)); ^~~~~~~~~~~~~~~~ include/linux/memcontrol.h:375:51: note: passing argument to parameter 'folio' here static inline bool folio_memcg_kmem(struct folio *folio); ^ 8 warnings and 17 errors generated. make[2]: *** [scripts/Makefile.build:117: arch/x86/kernel/asm-offsets.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1235: prepare0] Error 2 make[1]: Target 'modules_prepare' not remade because of errors. make: *** [Makefile:215: __sub-make] Error 2 make: Target 'modules_prepare' not remade because of errors. -- In file included from arch/x86/kernel/asm-offsets.c:13: 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:13: In file included from include/linux/cgroup.h:28: In file included from include/linux/cgroup-defs.h:22: In file included from include/linux/bpf-cgroup.h:5: In file included from include/linux/bpf.h:20: In file included from include/linux/kallsyms.h:12: include/linux/mm.h:1382:42: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline int folio_nid(const struct folio *folio) ^ include/linux/mm.h:1384:27: error: incomplete definition of type 'struct folio' return page_to_nid(&folio->page); ~~~~~^ include/linux/mm.h:1382:42: note: forward declaration of 'struct folio' static inline int folio_nid(const struct folio *folio) ^ In file included from arch/x86/kernel/asm-offsets.c:13: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: include/linux/memcontrol.h:375:44: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline bool folio_memcg_kmem(struct folio *folio); ^ include/linux/memcontrol.h:399:55: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline struct mem_cgroup *__folio_memcg(struct folio *folio) ^ >> include/linux/memcontrol.h:401:34: error: incomplete definition of type 'struct folio' unsigned long memcg_data = folio->memcg_data; ~~~~~^ include/linux/memcontrol.h:399:55: note: forward declaration of 'struct folio' static inline struct mem_cgroup *__folio_memcg(struct folio *folio) ^ >> include/linux/memcontrol.h:403:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio_slab(folio), folio); ^ >> include/linux/memcontrol.h:403:18: error: implicit declaration of function 'folio_slab' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio_slab(folio), folio); ^ include/linux/memcontrol.h:420:55: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline struct obj_cgroup *__folio_objcg(struct folio *folio) ^ include/linux/memcontrol.h:422:34: error: incomplete definition of type 'struct folio' unsigned long memcg_data = folio->memcg_data; ~~~~~^ include/linux/memcontrol.h:420:55: note: forward declaration of 'struct folio' static inline struct obj_cgroup *__folio_objcg(struct folio *folio) ^ include/linux/memcontrol.h:424:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio_slab(folio), folio); ^ include/linux/memcontrol.h:424:18: error: implicit declaration of function 'folio_slab' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio_slab(folio), folio); ^ include/linux/memcontrol.h:451:53: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline struct mem_cgroup *folio_memcg(struct folio *folio) ^ include/linux/memcontrol.h:453:23: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types] if (folio_memcg_kmem(folio)) ^~~~~ include/linux/memcontrol.h:375:51: note: passing argument to parameter 'folio' here static inline bool folio_memcg_kmem(struct folio *folio); ^ include/linux/memcontrol.h:454:41: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types] return obj_cgroup_memcg(__folio_objcg(folio)); ^~~~~ include/linux/memcontrol.h:420:62: note: passing argument to parameter 'folio' here static inline struct obj_cgroup *__folio_objcg(struct folio *folio) ^ include/linux/memcontrol.h:456:24: error: incompatible pointer types passing 'struct folio *' to parameter of type 'struct folio *' [-Werror,-Wincompatible-pointer-types] return __folio_memcg(folio); ^~~~~ include/linux/memcontrol.h:399:62: note: passing argument to parameter 'folio' here static inline struct mem_cgroup *__folio_memcg(struct folio *folio) ^ include/linux/memcontrol.h:461:21: error: implicit declaration of function 'page_folio' [-Werror,-Wimplicit-function-declaration] return folio_memcg(page_folio(page)); ^ include/linux/memcontrol.h:461:21: warning: incompatible integer to pointer conversion passing 'int' to parameter of type 'struct folio *' [-Wint-conversion] return folio_memcg(page_folio(page)); ^~~~~~~~~~~~~~~~ include/linux/memcontrol.h:451:60: note: passing argument to parameter 'folio' here static inline struct mem_cgroup *folio_memcg(struct folio *folio) ^ include/linux/memcontrol.h:541:44: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:541:20: error: conflicting types for 'folio_memcg_kmem' static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:375:20: note: previous declaration is here static inline bool folio_memcg_kmem(struct folio *folio); ^ include/linux/memcontrol.h:543:35: error: incomplete definition of type 'struct folio' VM_BUG_ON_PGFLAGS(PageTail(&folio->page), &folio->page); ~~~~~^ include/linux/mmdebug.h:76:60: note: expanded from macro 'VM_BUG_ON_PGFLAGS' #define VM_BUG_ON_PGFLAGS(cond, page) BUILD_BUG_ON_INVALID(cond) ^~~~ include/linux/build_bug.h:30:63: note: expanded from macro 'BUILD_BUG_ON_INVALID' #define BUILD_BUG_ON_INVALID(e) ((void)(sizeof((__force long)(e)))) ^ include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio' static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:544:2: error: implicit declaration of function 'VM_BUG_ON_FOLIO' [-Werror,-Wimplicit-function-declaration] VM_BUG_ON_FOLIO(folio->memcg_data & MEMCG_DATA_OBJCGS, folio); ^ include/linux/memcontrol.h:544:23: error: incomplete definition of type 'struct folio' VM_BUG_ON_FOLIO(folio->memcg_data & MEMCG_DATA_OBJCGS, folio); ~~~~~^ include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio' static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:545:14: error: incomplete definition of type 'struct folio' return folio->memcg_data & MEMCG_DATA_KMEM; ~~~~~^ include/linux/memcontrol.h:541:44: note: forward declaration of 'struct folio' static inline bool folio_memcg_kmem(struct folio *folio) ^ include/linux/memcontrol.h:607:26: error: implicit declaration of function 'page_folio' [-Werror,-Wimplicit-function-declaration] return folio_memcg_kmem(page_folio(page)); ^ include/linux/memcontrol.h:607:26: warning: incompatible integer to pointer conversion passing 'int' to parameter of type 'struct folio *' [-Wint-conversion] return folio_memcg_kmem(page_folio(page)); ^~~~~~~~~~~~~~~~ include/linux/memcontrol.h:375:51: note: passing argument to parameter 'folio' here static inline bool folio_memcg_kmem(struct folio *folio); ^ 8 warnings and 17 errors generated. make[2]: *** [scripts/Makefile.build:117: arch/x86/kernel/asm-offsets.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1235: prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:215: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +401 include/linux/memcontrol.h 373 374 static inline bool PageMemcgKmem(struct page *page); > 375 static inline bool folio_memcg_kmem(struct folio *folio); 376 377 /* 378 * After the initialization objcg->memcg is always pointing at 379 * a valid memcg, but can be atomically swapped to the parent memcg. 380 * 381 * The caller must ensure that the returned memcg won't be released: 382 * e.g. acquire the rcu_read_lock or css_set_lock. 383 */ 384 static inline struct mem_cgroup *obj_cgroup_memcg(struct obj_cgroup *objcg) 385 { 386 return READ_ONCE(objcg->memcg); 387 } 388 389 /* 390 * __folio_memcg - Get the memory cgroup associated with a non-kmem folio 391 * @folio: Pointer to the folio. 392 * 393 * Returns a pointer to the memory cgroup associated with the folio, 394 * or NULL. This function assumes that the folio is known to have a 395 * proper memory cgroup pointer. It's not safe to call this function 396 * against some type of folios, e.g. slab folios or ex-slab folios or 397 * kmem folios. 398 */ > 399 static inline struct mem_cgroup *__folio_memcg(struct folio *folio) 400 { > 401 unsigned long memcg_data = folio->memcg_data; 402 > 403 VM_BUG_ON_FOLIO(folio_slab(folio), folio); 404 VM_BUG_ON_FOLIO(memcg_data & MEMCG_DATA_OBJCGS, folio); 405 VM_BUG_ON_FOLIO(memcg_data & MEMCG_DATA_KMEM, folio); 406 407 return (struct mem_cgroup *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK); 408 } 409 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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