[android-common:android15-6.6 2/2] lib/../mm/internal.h:1249:18: error: static declaration of 'vmap_pages_range_noflush' follows non-static declaration

kernel test robot <[email protected]>
Newsgroups dev.linux.lists.oe-kbuild-all
Message-ID <[email protected]> 
tree:   https://android.googlesource.com/kernel/common android15-6.6
head:   24c059d9e217f32d61570fdbd7eb66bc999657a9
commit: c079fb2a08aa30fea641845ea6f5669d72d913c9 [2/2] ANDROID: mm/vmalloc: export vmap_pages_range_noflush and __get_vm_area_caller
config: arm-randconfig-004-20260816 (https://download.01.org/0day-ci/archive/20260816/[email protected]/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260816/[email protected]/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All errors (new ones prefixed by >>):

   In file included from lib/vsprintf.c:50:
>> lib/../mm/internal.h:1249:18: error: static declaration of 'vmap_pages_range_noflush' follows non-static declaration
    1249 | int __must_check vmap_pages_range_noflush(unsigned long addr, unsigned long end,
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/asm-generic/io.h:1028,
                    from arch/arm/include/asm/io.h:416,
                    from include/linux/io.h:13,
                    from include/linux/irq.h:20,
                    from include/asm-generic/hardirq.h:17,
                    from arch/arm/include/asm/hardirq.h:10,
                    from include/linux/hardirq.h:11,
                    from include/linux/interrupt.h:11,
                    from include/linux/rtc.h:17,
                    from lib/vsprintf.c:36:
   include/linux/vmalloc.h:129:5: note: previous declaration of 'vmap_pages_range_noflush' with type 'int(long unsigned int,  long unsigned int,  pgprot_t,  struct page **, unsigned int)' {aka 'int(long unsigned int,  long unsigned int,  long unsigned int,  struct page **, unsigned int)'}
     129 | int vmap_pages_range_noflush(unsigned long addr, unsigned long end,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~
   lib/vsprintf.c: In function 'va_format':
   lib/vsprintf.c:1682:9: warning: function 'va_format' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
    1682 |         buf += vsnprintf(buf, end > buf ? end - buf : 0, va_fmt->fmt, va);
         |         ^~~
--
   In file included from mm/filemap.c:52:
>> mm/internal.h:1249:18: error: static declaration of 'vmap_pages_range_noflush' follows non-static declaration
    1249 | int __must_check vmap_pages_range_noflush(unsigned long addr, unsigned long end,
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/asm-generic/io.h:1028,
                    from arch/arm/include/asm/io.h:416,
                    from include/linux/io.h:13,
                    from include/linux/irq.h:20,
                    from include/asm-generic/hardirq.h:17,
                    from arch/arm/include/asm/hardirq.h:10,
                    from include/linux/hardirq.h:11,
                    from include/linux/interrupt.h:11,
                    from include/linux/kernel_stat.h:9,
                    from mm/filemap.c:20:
   include/linux/vmalloc.h:129:5: note: previous declaration of 'vmap_pages_range_noflush' with type 'int(long unsigned int,  long unsigned int,  pgprot_t,  struct page **, unsigned int)' {aka 'int(long unsigned int,  long unsigned int,  long unsigned int,  struct page **, unsigned int)'}
     129 | int vmap_pages_range_noflush(unsigned long addr, unsigned long end,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~
--
   In file included from mm/vmscan.c:68:
>> mm/internal.h:1249:18: error: static declaration of 'vmap_pages_range_noflush' follows non-static declaration
    1249 | int __must_check vmap_pages_range_noflush(unsigned long addr, unsigned long end,
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/asm-generic/io.h:1028,
                    from arch/arm/include/asm/io.h:416,
                    from include/linux/io.h:13,
                    from include/linux/irq.h:20,
                    from include/asm-generic/hardirq.h:17,
                    from arch/arm/include/asm/hardirq.h:10,
                    from include/linux/hardirq.h:11,
                    from include/linux/interrupt.h:11,
                    from include/linux/kernel_stat.h:9,
                    from mm/vmscan.c:19:
   include/linux/vmalloc.h:129:5: note: previous declaration of 'vmap_pages_range_noflush' with type 'int(long unsigned int,  long unsigned int,  pgprot_t,  struct page **, unsigned int)' {aka 'int(long unsigned int,  long unsigned int,  long unsigned int,  struct page **, unsigned int)'}
     129 | int vmap_pages_range_noflush(unsigned long addr, unsigned long end,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~
   mm/vmscan.c:1071:15: warning: no previous prototype for 'shrink_slab' [-Wmissing-prototypes]
    1071 | unsigned long shrink_slab(gfp_t gfp_mask, int nid,
         |               ^~~~~~~~~~~
   mm/vmscan.c:2681:15: warning: no previous prototype for 'shrink_inactive_list' [-Wmissing-prototypes]
    2681 | unsigned long shrink_inactive_list(unsigned long nr_to_scan,
         |               ^~~~~~~~~~~~~~~~~~~~
--
   In file included from mm/gup.c:26:
>> mm/internal.h:1249:18: error: static declaration of 'vmap_pages_range_noflush' follows non-static declaration
    1249 | int __must_check vmap_pages_range_noflush(unsigned long addr, unsigned long end,
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/asm-generic/io.h:1028,
                    from arch/arm/include/asm/io.h:416,
                    from include/linux/io.h:13,
                    from arch/arm/include/asm/cachetype.h:85,
                    from arch/arm/include/asm/cacheflush.h:14,
                    from include/linux/cacheflush.h:5,
                    from include/linux/highmem.h:8,
                    from include/linux/pagemap.h:11,
                    from mm/gup.c:9:
   include/linux/vmalloc.h:129:5: note: previous declaration of 'vmap_pages_range_noflush' with type 'int(long unsigned int,  long unsigned int,  pgprot_t,  struct page **, unsigned int)' {aka 'int(long unsigned int,  long unsigned int,  long unsigned int,  struct page **, unsigned int)'}
     129 | int vmap_pages_range_noflush(unsigned long addr, unsigned long end,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~
   mm/gup.c:408:6: warning: no previous prototype for '_trace_android_vh_mm_customize_longterm_pinnable' [-Wmissing-prototypes]
     408 | void _trace_android_vh_mm_customize_longterm_pinnable(struct folio *folio,
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
   In file included from mm/early_ioremap.c:20:
>> mm/internal.h:1249:18: error: static declaration of 'vmap_pages_range_noflush' follows non-static declaration
    1249 | int __must_check vmap_pages_range_noflush(unsigned long addr, unsigned long end,
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/asm-generic/io.h:1028,
                    from arch/arm/include/asm/io.h:416,
                    from include/linux/io.h:13,
                    from mm/early_ioremap.c:13:
   include/linux/vmalloc.h:129:5: note: previous declaration of 'vmap_pages_range_noflush' with type 'int(long unsigned int,  long unsigned int,  pgprot_t,  struct page **, unsigned int)' {aka 'int(long unsigned int,  long unsigned int,  long unsigned int,  struct page **, unsigned int)'}
     129 | int vmap_pages_range_noflush(unsigned long addr, unsigned long end,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from mm/early_ioremap.c:18:
   arch/arm/include/asm/fixmap.h:39:35: warning: '__end_of_fixed_addresses' defined but not used [-Wunused-const-variable=]
      39 | static const enum fixed_addresses __end_of_fixed_addresses =
         |                                   ^~~~~~~~~~~~~~~~~~~~~~~~
--
   In file included from mm/page_alloc.c:62:
>> mm/internal.h:1249:18: error: static declaration of 'vmap_pages_range_noflush' follows non-static declaration
    1249 | int __must_check vmap_pages_range_noflush(unsigned long addr, unsigned long end,
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/asm-generic/io.h:1028,
                    from arch/arm/include/asm/io.h:416,
                    from include/linux/io.h:13,
                    from arch/arm/include/asm/cachetype.h:85,
                    from arch/arm/include/asm/cacheflush.h:14,
                    from include/linux/cacheflush.h:5,
                    from include/linux/highmem.h:8,
                    from mm/page_alloc.c:20:
   include/linux/vmalloc.h:129:5: note: previous declaration of 'vmap_pages_range_noflush' with type 'int(long unsigned int,  long unsigned int,  pgprot_t,  struct page **, unsigned int)' {aka 'int(long unsigned int,  long unsigned int,  long unsigned int,  struct page **, unsigned int)'}
     129 | int vmap_pages_range_noflush(unsigned long addr, unsigned long end,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~
   mm/page_alloc.c:1729:6: warning: no previous prototype for 'prep_new_page' [-Wmissing-prototypes]
    1729 | void prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags,
         |      ^~~~~~~~~~~~~
--
   In file included from mm/oom_kill.c:51:
>> mm/internal.h:1249:18: error: static declaration of 'vmap_pages_range_noflush' follows non-static declaration
    1249 | int __must_check vmap_pages_range_noflush(unsigned long addr, unsigned long end,
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/asm-generic/io.h:1028,
                    from arch/arm/include/asm/io.h:416,
                    from include/linux/io.h:13,
                    from include/linux/irq.h:20,
                    from include/asm-generic/hardirq.h:17,
                    from arch/arm/include/asm/hardirq.h:10,
                    from include/linux/hardirq.h:11,
                    from include/linux/interrupt.h:11,
                    from include/linux/kernel_stat.h:9,
                    from include/linux/cgroup.h:26,
                    from include/linux/memcontrol.h:13,
                    from include/linux/swap.h:9,
                    from mm/oom_kill.c:30:
   include/linux/vmalloc.h:129:5: note: previous declaration of 'vmap_pages_range_noflush' with type 'int(long unsigned int,  long unsigned int,  pgprot_t,  struct page **, unsigned int)' {aka 'int(long unsigned int,  long unsigned int,  long unsigned int,  struct page **, unsigned int)'}
     129 | int vmap_pages_range_noflush(unsigned long addr, unsigned long end,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~
   mm/oom_kill.c:432:6: warning: no previous prototype for 'dump_tasks' [-Wmissing-prototypes]
     432 | void dump_tasks(struct oom_control *oc)
         |      ^~~~~~~~~~


vim +/vmap_pages_range_noflush +1249 lib/../mm/internal.h

b671491199acd3 Mike Rapoport (IBM  2023-03-21  1247) 
4ad0ae8c64ac8f Nicholas Piggin     2021-04-29  1248  static inline
d905ae2b0f7eaf Alexander Potapenko 2023-04-13 @1249  int __must_check vmap_pages_range_noflush(unsigned long addr, unsigned long end,
4ad0ae8c64ac8f Nicholas Piggin     2021-04-29  1250                  pgprot_t prot, struct page **pages, unsigned int page_shift)
4ad0ae8c64ac8f Nicholas Piggin     2021-04-29  1251  {
4ad0ae8c64ac8f Nicholas Piggin     2021-04-29  1252  	return -EINVAL;
4ad0ae8c64ac8f Nicholas Piggin     2021-04-29  1253  }
4ad0ae8c64ac8f Nicholas Piggin     2021-04-29  1254  #endif
4ad0ae8c64ac8f Nicholas Piggin     2021-04-29  1255  

:::::: The code at line 1249 was first introduced by commit
:::::: d905ae2b0f7eaf8fb37febfe4833ccf3f8c1c27a mm: apply __must_check to vmap_pages_range_noflush()

:::::: TO: Alexander Potapenko <[email protected]>
:::::: CC: Andrew Morton <[email protected]>

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