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Message-ID: <202212131842.5xNHRahj-lkp@intel.com>
Date:   Tue, 13 Dec 2022 19:13:08 +0800
From:   kernel test robot <lkp@...el.com>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        David Hildenbrand <david@...hat.com>,
        Oscar Salvador <osalvador@...e.de>,
        SeongJae Park <sj@...nel.org>
Cc:     oe-kbuild-all@...ts.linux.dev,
        Linux Memory Management List <linux-mm@...ck.org>,
        linux-kernel@...r.kernel.org, damon@...ts.linux.dev,
        vishal.moola@...il.com, willy@...radead.org,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: Re: [PATCH -next 1/8] mm: memory_hotplug: add pfn_to_online_folio()

Hi Kefeng,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v6.1]
[cannot apply to akpm-mm/mm-everything next-20221213]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Kefeng-Wang/mm-converted-page-idle-and-damon-to-use-folios/20221213-171230
patch link:    https://lore.kernel.org/r/20221213092735.187924-2-wangkefeng.wang%40huawei.com
patch subject: [PATCH -next 1/8] mm: memory_hotplug: add pfn_to_online_folio()
config: alpha-allyesconfig
compiler: alpha-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://github.com/intel-lab-lkp/linux/commit/6549c7ce5345695320d1dadef2aceff6e76d34f4
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Kefeng-Wang/mm-converted-page-idle-and-damon-to-use-folios/20221213-171230
        git checkout 6549c7ce5345695320d1dadef2aceff6e76d34f4
        # 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=alpha prepare

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All error/warnings (new ones prefixed by >>):

   In file included from include/linux/mmzone.h:1245,
                    from include/linux/gfp.h:7,
                    from include/linux/percpu_counter.h:16,
                    from include/linux/sched/user.h:7,
                    from include/linux/cred.h:17,
                    from include/linux/sched/signal.h:10,
                    from include/linux/ptrace.h:7,
                    from arch/alpha/kernel/asm-offsets.c:11:
   include/linux/memory_hotplug.h: In function 'pfn_to_online_folio':
>> include/linux/memory_hotplug.h:230:13: error: implicit declaration of function 'pfn_valid'; did you mean 'gid_valid'? [-Werror=implicit-function-declaration]
     230 |         if (pfn_valid(pfn))                     \
         |             ^~~~~~~~~
   include/linux/memory_hotplug.h:270:29: note: in expansion of macro 'pfn_to_online_page'
     270 |         struct page *page = pfn_to_online_page(pfn);
         |                             ^~~~~~~~~~~~~~~~~~
   In file included from arch/alpha/include/asm/page.h:94,
                    from include/linux/shm.h:6,
                    from include/linux/sched.h:16,
                    from arch/alpha/kernel/asm-offsets.c:10:
>> include/asm-generic/memory_model.h:41:37: error: implicit declaration of function '__pfn_to_section' [-Werror=implicit-function-declaration]
      41 |         struct mem_section *__sec = __pfn_to_section(__pfn);    \
         |                                     ^~~~~~~~~~~~~~~~
   include/asm-generic/memory_model.h:53:21: note: in expansion of macro '__pfn_to_page'
      53 | #define pfn_to_page __pfn_to_page
         |                     ^~~~~~~~~~~~~
   include/linux/memory_hotplug.h:231:27: note: in expansion of macro 'pfn_to_page'
     231 |                 ___page = pfn_to_page(pfn);     \
         |                           ^~~~~~~~~~~
   include/linux/memory_hotplug.h:270:29: note: in expansion of macro 'pfn_to_online_page'
     270 |         struct page *page = pfn_to_online_page(pfn);
         |                             ^~~~~~~~~~~~~~~~~~
>> include/asm-generic/memory_model.h:41:37: warning: initialization of 'struct mem_section *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
      41 |         struct mem_section *__sec = __pfn_to_section(__pfn);    \
         |                                     ^~~~~~~~~~~~~~~~
   include/asm-generic/memory_model.h:53:21: note: in expansion of macro '__pfn_to_page'
      53 | #define pfn_to_page __pfn_to_page
         |                     ^~~~~~~~~~~~~
   include/linux/memory_hotplug.h:231:27: note: in expansion of macro 'pfn_to_page'
     231 |                 ___page = pfn_to_page(pfn);     \
         |                           ^~~~~~~~~~~
   include/linux/memory_hotplug.h:270:29: note: in expansion of macro 'pfn_to_online_page'
     270 |         struct page *page = pfn_to_online_page(pfn);
         |                             ^~~~~~~~~~~~~~~~~~
   include/asm-generic/memory_model.h:41:37: note: (near initialization for 'page')
      41 |         struct mem_section *__sec = __pfn_to_section(__pfn);    \
         |                                     ^~~~~~~~~~~~~~~~
   include/asm-generic/memory_model.h:53:21: note: in expansion of macro '__pfn_to_page'
      53 | #define pfn_to_page __pfn_to_page
         |                     ^~~~~~~~~~~~~
   include/linux/memory_hotplug.h:231:27: note: in expansion of macro 'pfn_to_page'
     231 |                 ___page = pfn_to_page(pfn);     \
         |                           ^~~~~~~~~~~
   include/linux/memory_hotplug.h:270:29: note: in expansion of macro 'pfn_to_online_page'
     270 |         struct page *page = pfn_to_online_page(pfn);
         |                             ^~~~~~~~~~~~~~~~~~
>> include/asm-generic/memory_model.h:42:9: error: implicit declaration of function '__section_mem_map_addr' [-Werror=implicit-function-declaration]
      42 |         __section_mem_map_addr(__sec) + __pfn;          \
         |         ^~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/memory_model.h:53:21: note: in expansion of macro '__pfn_to_page'
      53 | #define pfn_to_page __pfn_to_page
         |                     ^~~~~~~~~~~~~
   include/linux/memory_hotplug.h:231:27: note: in expansion of macro 'pfn_to_page'
     231 |                 ___page = pfn_to_page(pfn);     \
         |                           ^~~~~~~~~~~
   include/linux/memory_hotplug.h:270:29: note: in expansion of macro 'pfn_to_online_page'
     270 |         struct page *page = pfn_to_online_page(pfn);
         |                             ^~~~~~~~~~~~~~~~~~
>> include/linux/memory_hotplug.h:231:25: warning: assignment to 'struct page *' from 'long unsigned int' makes pointer from integer without a cast [-Wint-conversion]
     231 |                 ___page = pfn_to_page(pfn);     \
         |                         ^
   include/linux/memory_hotplug.h:270:29: note: in expansion of macro 'pfn_to_online_page'
     270 |         struct page *page = pfn_to_online_page(pfn);
         |                             ^~~~~~~~~~~~~~~~~~
   include/linux/mmzone.h: At top level:
>> include/linux/mmzone.h:1740:28: error: conflicting types for '__section_mem_map_addr'; have 'struct page *(struct mem_section *)'
    1740 | static inline struct page *__section_mem_map_addr(struct mem_section *section)
         |                            ^~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/memory_model.h:42:9: note: previous implicit declaration of '__section_mem_map_addr' with type 'int()'
      42 |         __section_mem_map_addr(__sec) + __pfn;          \
         |         ^~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/memory_model.h:53:21: note: in expansion of macro '__pfn_to_page'
      53 | #define pfn_to_page __pfn_to_page
         |                     ^~~~~~~~~~~~~
   include/linux/memory_hotplug.h:231:27: note: in expansion of macro 'pfn_to_page'
     231 |                 ___page = pfn_to_page(pfn);     \
         |                           ^~~~~~~~~~~
   include/linux/memory_hotplug.h:270:29: note: in expansion of macro 'pfn_to_online_page'
     270 |         struct page *page = pfn_to_online_page(pfn);
         |                             ^~~~~~~~~~~~~~~~~~
>> include/linux/mmzone.h:1801:35: error: conflicting types for '__pfn_to_section'; have 'struct mem_section *(long unsigned int)'
    1801 | static inline struct mem_section *__pfn_to_section(unsigned long pfn)
         |                                   ^~~~~~~~~~~~~~~~
   include/asm-generic/memory_model.h:41:37: note: previous implicit declaration of '__pfn_to_section' with type 'int()'
      41 |         struct mem_section *__sec = __pfn_to_section(__pfn);    \
         |                                     ^~~~~~~~~~~~~~~~
   include/asm-generic/memory_model.h:53:21: note: in expansion of macro '__pfn_to_page'
      53 | #define pfn_to_page __pfn_to_page
         |                     ^~~~~~~~~~~~~
   include/linux/memory_hotplug.h:231:27: note: in expansion of macro 'pfn_to_page'
     231 |                 ___page = pfn_to_page(pfn);     \
         |                           ^~~~~~~~~~~
   include/linux/memory_hotplug.h:270:29: note: in expansion of macro 'pfn_to_online_page'
     270 |         struct page *page = pfn_to_online_page(pfn);
         |                             ^~~~~~~~~~~~~~~~~~
>> include/linux/mmzone.h:1839:19: error: static declaration of 'pfn_valid' follows non-static declaration
    1839 | static inline int pfn_valid(unsigned long pfn)
         |                   ^~~~~~~~~
   include/linux/memory_hotplug.h:230:13: note: previous implicit declaration of 'pfn_valid' with type 'int()'
     230 |         if (pfn_valid(pfn))                     \
         |             ^~~~~~~~~
   include/linux/memory_hotplug.h:270:29: note: in expansion of macro 'pfn_to_online_page'
     270 |         struct page *page = pfn_to_online_page(pfn);
         |                             ^~~~~~~~~~~~~~~~~~
   arch/alpha/kernel/asm-offsets.c:15:6: warning: no previous prototype for 'foo' [-Wmissing-prototypes]
      15 | void foo(void)
         |      ^~~
   cc1: some warnings being treated as errors
   make[2]: *** [scripts/Makefile.build:118: arch/alpha/kernel/asm-offsets.s] Error 1
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:1272: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:231: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +230 include/linux/memory_hotplug.h

b4a0215e11dcfe Kefeng Wang  2022-08-27  225  
208d54e5513c0c Dave Hansen  2005-10-29  226  #else /* ! CONFIG_MEMORY_HOTPLUG */
2d070eab2e8270 Michal Hocko 2017-07-06  227  #define pfn_to_online_page(pfn)			\
2d070eab2e8270 Michal Hocko 2017-07-06  228  ({						\
2d070eab2e8270 Michal Hocko 2017-07-06  229  	struct page *___page = NULL;		\
2d070eab2e8270 Michal Hocko 2017-07-06 @230  	if (pfn_valid(pfn))			\
2d070eab2e8270 Michal Hocko 2017-07-06 @231  		___page = pfn_to_page(pfn);	\
2d070eab2e8270 Michal Hocko 2017-07-06  232  	___page;				\
2d070eab2e8270 Michal Hocko 2017-07-06  233   })
2d070eab2e8270 Michal Hocko 2017-07-06  234  

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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