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* [hch-block:bvec-kmap 3/46] include/linux/bvec.h:194:2: error: implicit declaration of function 'memcpy_from_page'; did you mean 'memcpy_from_bvec'?
@ 2021-05-22 20:56 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-05-22 20:56 UTC (permalink / raw)
  To: kbuild-all

[-- Attachment #1: Type: text/plain, Size: 25729 bytes --]

tree:   git://git.infradead.org/users/hch/block.git bvec-kmap
head:   dcf9fd7b54aa00cdd89251aebaa3cc713f035e26
commit: 32df1ea7b631ec2e37b4a3917829fb3c204cea9c [3/46] bvec: add memcpy_{from,to}_bvec and memzero_bvec helper
config: mips-rb532_defconfig (attached as .config)
compiler: mipsel-linux-gcc (GCC) 9.3.0
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
        git remote add hch-block git://git.infradead.org/users/hch/block.git
        git fetch --no-tags hch-block bvec-kmap
        git checkout 32df1ea7b631ec2e37b4a3917829fb3c204cea9c
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

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

   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from arch/mips/kernel/setup.c:20:
   include/linux/bvec.h: In function 'bvec_kmap_local':
   include/linux/bvec.h:189:9: error: implicit declaration of function 'kmap_local_page'; did you mean 'drain_local_pages'? [-Werror=implicit-function-declaration]
     189 |  return kmap_local_page(bvec->bv_page) + bvec->bv_offset;
         |         ^~~~~~~~~~~~~~~
         |         drain_local_pages
   include/linux/bvec.h:189:40: warning: returning 'unsigned int' from a function with return type 'void *' makes pointer from integer without a cast [-Wint-conversion]
     189 |  return kmap_local_page(bvec->bv_page) + bvec->bv_offset;
         |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
   include/linux/bvec.h: In function 'memcpy_from_bvec':
>> include/linux/bvec.h:194:2: error: implicit declaration of function 'memcpy_from_page'; did you mean 'memcpy_from_bvec'? [-Werror=implicit-function-declaration]
     194 |  memcpy_from_page(to, bvec->bv_page, bvec->bv_offset, bvec->bv_len);
         |  ^~~~~~~~~~~~~~~~
         |  memcpy_from_bvec
   include/linux/bvec.h: In function 'memcpy_to_bvec':
>> include/linux/bvec.h:199:2: error: implicit declaration of function 'memcpy_to_page'; did you mean 'memcpy_to_bvec'? [-Werror=implicit-function-declaration]
     199 |  memcpy_to_page(bvec->bv_page, bvec->bv_offset, from, bvec->bv_len);
         |  ^~~~~~~~~~~~~~
         |  memcpy_to_bvec
   include/linux/bvec.h: In function 'memzero_bvec':
>> include/linux/bvec.h:204:2: error: implicit declaration of function 'memzero_page'; did you mean 'memzero_bvec'? [-Werror=implicit-function-declaration]
     204 |  memzero_page(bvec->bv_page, bvec->bv_offset, bvec->bv_len);
         |  ^~~~~~~~~~~~
         |  memzero_bvec
   In file included from include/linux/highmem.h:14,
                    from arch/mips/kernel/setup.c:20:
   include/linux/highmem-internal.h: At top level:
   include/linux/highmem-internal.h:158:21: error: conflicting types for 'kmap_local_page'
     158 | static inline void *kmap_local_page(struct page *page)
         |                     ^~~~~~~~~~~~~~~
   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from arch/mips/kernel/setup.c:20:
   include/linux/bvec.h:189:9: note: previous implicit declaration of 'kmap_local_page' was here
     189 |  return kmap_local_page(bvec->bv_page) + bvec->bv_offset;
         |         ^~~~~~~~~~~~~~~
   In file included from arch/mips/kernel/setup.c:20:
>> include/linux/highmem.h:315:20: warning: conflicting types for 'memcpy_from_page'
     315 | static inline void memcpy_from_page(char *to, struct page *page,
         |                    ^~~~~~~~~~~~~~~~
>> include/linux/highmem.h:315:20: error: static declaration of 'memcpy_from_page' follows non-static declaration
   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from arch/mips/kernel/setup.c:20:
   include/linux/bvec.h:194:2: note: previous implicit declaration of 'memcpy_from_page' was here
     194 |  memcpy_from_page(to, bvec->bv_page, bvec->bv_offset, bvec->bv_len);
         |  ^~~~~~~~~~~~~~~~
   In file included from arch/mips/kernel/setup.c:20:
>> include/linux/highmem.h:325:20: warning: conflicting types for 'memcpy_to_page'
     325 | static inline void memcpy_to_page(struct page *page, size_t offset,
         |                    ^~~~~~~~~~~~~~
>> include/linux/highmem.h:325:20: error: static declaration of 'memcpy_to_page' follows non-static declaration
   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from arch/mips/kernel/setup.c:20:
   include/linux/bvec.h:199:2: note: previous implicit declaration of 'memcpy_to_page' was here
     199 |  memcpy_to_page(bvec->bv_page, bvec->bv_offset, from, bvec->bv_len);
         |  ^~~~~~~~~~~~~~
   In file included from arch/mips/kernel/setup.c:20:
>> include/linux/highmem.h:335:20: warning: conflicting types for 'memzero_page'
     335 | static inline void memzero_page(struct page *page, size_t offset, size_t len)
         |                    ^~~~~~~~~~~~
>> include/linux/highmem.h:335:20: error: static declaration of 'memzero_page' follows non-static declaration
   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from arch/mips/kernel/setup.c:20:
   include/linux/bvec.h:204:2: note: previous implicit declaration of 'memzero_page' was here
     204 |  memzero_page(bvec->bv_page, bvec->bv_offset, bvec->bv_len);
         |  ^~~~~~~~~~~~
   cc1: some warnings being treated as errors
--
   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from include/linux/pagemap.h:11,
                    from arch/mips/mm/init.c:21:
   include/linux/bvec.h: In function 'bvec_kmap_local':
   include/linux/bvec.h:189:9: error: implicit declaration of function 'kmap_local_page'; did you mean 'drain_local_pages'? [-Werror=implicit-function-declaration]
     189 |  return kmap_local_page(bvec->bv_page) + bvec->bv_offset;
         |         ^~~~~~~~~~~~~~~
         |         drain_local_pages
   include/linux/bvec.h:189:40: warning: returning 'unsigned int' from a function with return type 'void *' makes pointer from integer without a cast [-Wint-conversion]
     189 |  return kmap_local_page(bvec->bv_page) + bvec->bv_offset;
         |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
   include/linux/bvec.h: In function 'memcpy_from_bvec':
>> include/linux/bvec.h:194:2: error: implicit declaration of function 'memcpy_from_page'; did you mean 'memcpy_from_bvec'? [-Werror=implicit-function-declaration]
     194 |  memcpy_from_page(to, bvec->bv_page, bvec->bv_offset, bvec->bv_len);
         |  ^~~~~~~~~~~~~~~~
         |  memcpy_from_bvec
   include/linux/bvec.h: In function 'memcpy_to_bvec':
>> include/linux/bvec.h:199:2: error: implicit declaration of function 'memcpy_to_page'; did you mean 'memcpy_to_bvec'? [-Werror=implicit-function-declaration]
     199 |  memcpy_to_page(bvec->bv_page, bvec->bv_offset, from, bvec->bv_len);
         |  ^~~~~~~~~~~~~~
         |  memcpy_to_bvec
   include/linux/bvec.h: In function 'memzero_bvec':
>> include/linux/bvec.h:204:2: error: implicit declaration of function 'memzero_page'; did you mean 'memzero_bvec'? [-Werror=implicit-function-declaration]
     204 |  memzero_page(bvec->bv_page, bvec->bv_offset, bvec->bv_len);
         |  ^~~~~~~~~~~~
         |  memzero_bvec
   In file included from include/linux/highmem.h:14,
                    from include/linux/pagemap.h:11,
                    from arch/mips/mm/init.c:21:
   include/linux/highmem-internal.h: At top level:
   include/linux/highmem-internal.h:158:21: error: conflicting types for 'kmap_local_page'
     158 | static inline void *kmap_local_page(struct page *page)
         |                     ^~~~~~~~~~~~~~~
   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from include/linux/pagemap.h:11,
                    from arch/mips/mm/init.c:21:
   include/linux/bvec.h:189:9: note: previous implicit declaration of 'kmap_local_page' was here
     189 |  return kmap_local_page(bvec->bv_page) + bvec->bv_offset;
         |         ^~~~~~~~~~~~~~~
   In file included from include/linux/pagemap.h:11,
                    from arch/mips/mm/init.c:21:
>> include/linux/highmem.h:315:20: warning: conflicting types for 'memcpy_from_page'
     315 | static inline void memcpy_from_page(char *to, struct page *page,
         |                    ^~~~~~~~~~~~~~~~
>> include/linux/highmem.h:315:20: error: static declaration of 'memcpy_from_page' follows non-static declaration
   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from include/linux/pagemap.h:11,
                    from arch/mips/mm/init.c:21:
   include/linux/bvec.h:194:2: note: previous implicit declaration of 'memcpy_from_page' was here
     194 |  memcpy_from_page(to, bvec->bv_page, bvec->bv_offset, bvec->bv_len);
         |  ^~~~~~~~~~~~~~~~
   In file included from include/linux/pagemap.h:11,
                    from arch/mips/mm/init.c:21:
>> include/linux/highmem.h:325:20: warning: conflicting types for 'memcpy_to_page'
     325 | static inline void memcpy_to_page(struct page *page, size_t offset,
         |                    ^~~~~~~~~~~~~~
>> include/linux/highmem.h:325:20: error: static declaration of 'memcpy_to_page' follows non-static declaration
   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from include/linux/pagemap.h:11,
                    from arch/mips/mm/init.c:21:
   include/linux/bvec.h:199:2: note: previous implicit declaration of 'memcpy_to_page' was here
     199 |  memcpy_to_page(bvec->bv_page, bvec->bv_offset, from, bvec->bv_len);
         |  ^~~~~~~~~~~~~~
   In file included from include/linux/pagemap.h:11,
                    from arch/mips/mm/init.c:21:
>> include/linux/highmem.h:335:20: warning: conflicting types for 'memzero_page'
     335 | static inline void memzero_page(struct page *page, size_t offset, size_t len)
         |                    ^~~~~~~~~~~~
>> include/linux/highmem.h:335:20: error: static declaration of 'memzero_page' follows non-static declaration
   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from include/linux/pagemap.h:11,
                    from arch/mips/mm/init.c:21:
   include/linux/bvec.h:204:2: note: previous implicit declaration of 'memzero_page' was here
     204 |  memzero_page(bvec->bv_page, bvec->bv_offset, bvec->bv_len);
         |  ^~~~~~~~~~~~
   arch/mips/mm/init.c:60:6: warning: no previous prototype for 'setup_zero_pages' [-Wmissing-prototypes]
      60 | void setup_zero_pages(void)
         |      ^~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors
--
   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from include/linux/pagemap.h:11,
                    from include/linux/mempolicy.h:16,
                    from kernel/fork.c:34:
   include/linux/bvec.h: In function 'bvec_kmap_local':
   include/linux/bvec.h:189:9: error: implicit declaration of function 'kmap_local_page'; did you mean 'dax_lock_page'? [-Werror=implicit-function-declaration]
     189 |  return kmap_local_page(bvec->bv_page) + bvec->bv_offset;
         |         ^~~~~~~~~~~~~~~
         |         dax_lock_page
   include/linux/bvec.h:189:40: warning: returning 'unsigned int' from a function with return type 'void *' makes pointer from integer without a cast [-Wint-conversion]
     189 |  return kmap_local_page(bvec->bv_page) + bvec->bv_offset;
         |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
   include/linux/bvec.h: In function 'memcpy_from_bvec':
>> include/linux/bvec.h:194:2: error: implicit declaration of function 'memcpy_from_page'; did you mean 'memcpy_from_bvec'? [-Werror=implicit-function-declaration]
     194 |  memcpy_from_page(to, bvec->bv_page, bvec->bv_offset, bvec->bv_len);
         |  ^~~~~~~~~~~~~~~~
         |  memcpy_from_bvec
   include/linux/bvec.h: In function 'memcpy_to_bvec':
>> include/linux/bvec.h:199:2: error: implicit declaration of function 'memcpy_to_page'; did you mean 'memcpy_to_bvec'? [-Werror=implicit-function-declaration]
     199 |  memcpy_to_page(bvec->bv_page, bvec->bv_offset, from, bvec->bv_len);
         |  ^~~~~~~~~~~~~~
         |  memcpy_to_bvec
   include/linux/bvec.h: In function 'memzero_bvec':
>> include/linux/bvec.h:204:2: error: implicit declaration of function 'memzero_page'; did you mean 'memzero_bvec'? [-Werror=implicit-function-declaration]
     204 |  memzero_page(bvec->bv_page, bvec->bv_offset, bvec->bv_len);
         |  ^~~~~~~~~~~~
         |  memzero_bvec
   In file included from include/linux/highmem.h:14,
                    from include/linux/pagemap.h:11,
                    from include/linux/mempolicy.h:16,
                    from kernel/fork.c:34:
   include/linux/highmem-internal.h: At top level:
   include/linux/highmem-internal.h:158:21: error: conflicting types for 'kmap_local_page'
     158 | static inline void *kmap_local_page(struct page *page)
         |                     ^~~~~~~~~~~~~~~
   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from include/linux/pagemap.h:11,
                    from include/linux/mempolicy.h:16,
                    from kernel/fork.c:34:
   include/linux/bvec.h:189:9: note: previous implicit declaration of 'kmap_local_page' was here
     189 |  return kmap_local_page(bvec->bv_page) + bvec->bv_offset;
         |         ^~~~~~~~~~~~~~~
   In file included from include/linux/pagemap.h:11,
                    from include/linux/mempolicy.h:16,
                    from kernel/fork.c:34:
>> include/linux/highmem.h:315:20: warning: conflicting types for 'memcpy_from_page'
     315 | static inline void memcpy_from_page(char *to, struct page *page,
         |                    ^~~~~~~~~~~~~~~~
>> include/linux/highmem.h:315:20: error: static declaration of 'memcpy_from_page' follows non-static declaration
   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from include/linux/pagemap.h:11,
                    from include/linux/mempolicy.h:16,
                    from kernel/fork.c:34:
   include/linux/bvec.h:194:2: note: previous implicit declaration of 'memcpy_from_page' was here
     194 |  memcpy_from_page(to, bvec->bv_page, bvec->bv_offset, bvec->bv_len);
         |  ^~~~~~~~~~~~~~~~
   In file included from include/linux/pagemap.h:11,
                    from include/linux/mempolicy.h:16,
                    from kernel/fork.c:34:
>> include/linux/highmem.h:325:20: warning: conflicting types for 'memcpy_to_page'
     325 | static inline void memcpy_to_page(struct page *page, size_t offset,
         |                    ^~~~~~~~~~~~~~
>> include/linux/highmem.h:325:20: error: static declaration of 'memcpy_to_page' follows non-static declaration
   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from include/linux/pagemap.h:11,
                    from include/linux/mempolicy.h:16,
                    from kernel/fork.c:34:
   include/linux/bvec.h:199:2: note: previous implicit declaration of 'memcpy_to_page' was here
     199 |  memcpy_to_page(bvec->bv_page, bvec->bv_offset, from, bvec->bv_len);
         |  ^~~~~~~~~~~~~~
   In file included from include/linux/pagemap.h:11,
                    from include/linux/mempolicy.h:16,
                    from kernel/fork.c:34:
>> include/linux/highmem.h:335:20: warning: conflicting types for 'memzero_page'
     335 | static inline void memzero_page(struct page *page, size_t offset, size_t len)
         |                    ^~~~~~~~~~~~
>> include/linux/highmem.h:335:20: error: static declaration of 'memzero_page' follows non-static declaration
   In file included from include/linux/blk_types.h:10,
                    from include/linux/genhd.h:19,
                    from arch/mips/include/asm/mach-rc32434/rb.h:10,
                    from arch/mips/include/asm/mach-rc32434/irq.h:8,
                    from arch/mips/include/asm/irq.h:18,
                    from include/linux/irq.h:23,
                    from include/asm-generic/hardirq.h:17,
                    from arch/mips/include/asm/hardirq.h:16,
                    from include/linux/hardirq.h:11,
                    from include/linux/highmem.h:10,
                    from include/linux/pagemap.h:11,
                    from include/linux/mempolicy.h:16,
                    from kernel/fork.c:34:
   include/linux/bvec.h:204:2: note: previous implicit declaration of 'memzero_page' was here
     204 |  memzero_page(bvec->bv_page, bvec->bv_offset, bvec->bv_len);
         |  ^~~~~~~~~~~~
   kernel/fork.c:162:13: warning: no previous prototype for 'arch_release_task_struct' [-Wmissing-prototypes]
     162 | void __weak arch_release_task_struct(struct task_struct *tsk)
         |             ^~~~~~~~~~~~~~~~~~~~~~~~
   kernel/fork.c:751:20: warning: no previous prototype for 'arch_task_cache_init' [-Wmissing-prototypes]
     751 | void __init __weak arch_task_cache_init(void) { }
         |                    ^~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors
..


vim +194 include/linux/bvec.h

   186	
   187	static inline void *bvec_kmap_local(struct bio_vec *bvec)
   188	{
 > 189		return kmap_local_page(bvec->bv_page) + bvec->bv_offset;
   190	}
   191	
   192	static inline void memcpy_from_bvec(char *to, struct bio_vec *bvec)
   193	{
 > 194		memcpy_from_page(to, bvec->bv_page, bvec->bv_offset, bvec->bv_len);
   195	}
   196	
   197	static inline void memcpy_to_bvec(struct bio_vec *bvec, const char *from)
   198	{
 > 199		memcpy_to_page(bvec->bv_page, bvec->bv_offset, from, bvec->bv_len);
   200	}
   201	
   202	static inline void memzero_bvec(struct bio_vec *bvec)
   203	{
 > 204		memzero_page(bvec->bv_page, bvec->bv_offset, bvec->bv_len);
   205	}
   206	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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2021-05-22 20:56 [hch-block:bvec-kmap 3/46] include/linux/bvec.h:194:2: error: implicit declaration of function 'memcpy_from_page'; did you mean 'memcpy_from_bvec'? kernel test robot

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