2022-03-30 12:38:23

by kernel test robot

Subject: [ammarfaizi2-block:google/android/kernel/common/android12-trusty-5.10 5835/5872] mm/compaction.c:766:15: error: redefinition of 'isolate_and_split_free_page'

tree: https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android12-trusty-5.10
head: 07055bfd3d810d41a38354693dfaa55a6f8c0025
commit: 8cd9aa93b7269460e8d5e4407738f21fe5d6e720 [5835/5872] ANDROID: implement wrapper for reverse migration
config: arm64-randconfig-r036-20220327 (https://download.01.org/0day-ci/archive/20220330/[email protected]/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0f6d9501cf49ce02937099350d08f20c4af86f3d)
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/ammarfaizi2/linux-block/commit/8cd9aa93b7269460e8d5e4407738f21fe5d6e720
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android12-trusty-5.10
git checkout 8cd9aa93b7269460e8d5e4407738f21fe5d6e720
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>

All errors (new ones prefixed by >>):

>> mm/compaction.c:766:15: error: redefinition of 'isolate_and_split_free_page'
unsigned long isolate_and_split_free_page(struct page *page,
^
include/linux/compaction.h:241:22: note: previous definition is here
static unsigned long isolate_and_split_free_page(struct page *page,
^
1 error generated.


vim +/isolate_and_split_free_page +766 mm/compaction.c

765
> 766 unsigned long isolate_and_split_free_page(struct page *page,
767 struct list_head *list)
768 {
769 unsigned long isolated;
770 unsigned int order;
771
772 if (!PageBuddy(page))
773 return 0;
774
775 order = buddy_order(page);
776 isolated = __isolate_free_page(page, order);
777 if (!isolated)
778 return 0;
779
780 set_page_private(page, order);
781 list_add(&page->lru, list);
782
783 split_map_pages(list);
784
785 return isolated;
786 }
787 EXPORT_SYMBOL_GPL(isolate_and_split_free_page);
788

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

2022-03-31 03:16:48

by Suren Baghdasaryan

Subject: Re: [ammarfaizi2-block:google/android/kernel/common/android12-trusty-5.10 5835/5872] mm/compaction.c:766:15: error: redefinition of 'isolate_and_split_free_page'

On Tue, Mar 29, 2022 at 11:32 PM kernel test robot <[email protected]> wrote:
>
> tree: https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android12-trusty-5.10
> head: 07055bfd3d810d41a38354693dfaa55a6f8c0025
> commit: 8cd9aa93b7269460e8d5e4407738f21fe5d6e720 [5835/5872] ANDROID: implement wrapper for reverse migration
> config: arm64-randconfig-r036-20220327 (https://download.01.org/0day-ci/archive/20220330/[email protected]/config)
> compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0f6d9501cf49ce02937099350d08f20c4af86f3d)
> 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/ammarfaizi2/linux-block/commit/8cd9aa93b7269460e8d5e4407738f21fe5d6e720
> git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
> git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android12-trusty-5.10
> git checkout 8cd9aa93b7269460e8d5e4407738f21fe5d6e720
> # save the config file to linux build tree
> mkdir build_dir
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <[email protected]>
>
> All errors (new ones prefixed by >>):
>
> >> mm/compaction.c:766:15: error: redefinition of 'isolate_and_split_free_page'
> unsigned long isolate_and_split_free_page(struct page *page,
> ^
> include/linux/compaction.h:241:22: note: previous definition is here
> static unsigned long isolate_and_split_free_page(struct page *page,
> ^
> 1 error generated.
>

This issue has been fixed by
https://android-review.googlesource.com/c/kernel/common/+/1685698


>
> vim +/isolate_and_split_free_page +766 mm/compaction.c
>
> 765
> > 766 unsigned long isolate_and_split_free_page(struct page *page,
> 767 struct list_head *list)
> 768 {
> 769 unsigned long isolated;
> 770 unsigned int order;
> 771
> 772 if (!PageBuddy(page))
> 773 return 0;
> 774
> 775 order = buddy_order(page);
> 776 isolated = __isolate_free_page(page, order);
> 777 if (!isolated)
> 778 return 0;
> 779
> 780 set_page_private(page, order);
> 781 list_add(&page->lru, list);
> 782
> 783 split_map_pages(list);
> 784
> 785 return isolated;
> 786 }
> 787 EXPORT_SYMBOL_GPL(isolate_and_split_free_page);
> 788
>
> --
> 0-DAY CI Kernel Test Service
> https://01.org/lkp