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SubjectRe: [PATCH v2] memcg: charge before adding to swapcache on swapin
Hi Shakeel,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20210222]
[cannot apply to linus/master hnaz-linux-mm/master v5.11 v5.11-rc7 v5.11-rc6 v5.11]
[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/Shakeel-Butt/memcg-charge-before-adding-to-swapcache-on-swapin/20210223-135711
base: 37dfbfbdca66834bc0f64ec9b35e09ac6c8898da
config: x86_64-randconfig-m031-20210223 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# https://github.com/0day-ci/linux/commit/7ad6fb47580886394809b563b7476954a35f3054
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Shakeel-Butt/memcg-charge-before-adding-to-swapcache-on-swapin/20210223-135711
git checkout 7ad6fb47580886394809b563b7476954a35f3054
# save the attached .config to linux build tree
make W=1 ARCH=x86_64

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

All errors (new ones prefixed by >>):

In file included from include/linux/swap.h:9,
from include/linux/suspend.h:5,
from arch/x86/kernel/asm-offsets.c:13:
>> include/linux/memcontrol.h:1149:1: error: expected identifier or '(' before '{' token
1149 | {
| ^
include/linux/memcontrol.h:1147:19: warning: 'mem_cgroup_charge_swapin_page' declared 'static' but never defined [-Wunused-function]
1147 | static inline int mem_cgroup_charge_swapin_page(struct page *page,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
In file included from include/linux/swap.h:9,
from include/linux/suspend.h:5,
from arch/x86/kernel/asm-offsets.c:13:
>> include/linux/memcontrol.h:1149:1: error: expected identifier or '(' before '{' token
1149 | {
| ^
include/linux/memcontrol.h:1147:19: warning: 'mem_cgroup_charge_swapin_page' declared 'static' but never defined [-Wunused-function]
1147 | static inline int mem_cgroup_charge_swapin_page(struct page *page,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:1228: prepare0] Error 2
make[1]: Target 'modules_prepare' not remade because of errors.
make: *** [Makefile:185: __sub-make] Error 2
make: Target 'modules_prepare' not remade because of errors.
--
In file included from include/linux/swap.h:9,
from include/linux/suspend.h:5,
from arch/x86/kernel/asm-offsets.c:13:
>> include/linux/memcontrol.h:1149:1: error: expected identifier or '(' before '{' token
1149 | {
| ^
include/linux/memcontrol.h:1147:19: warning: 'mem_cgroup_charge_swapin_page' declared 'static' but never defined [-Wunused-function]
1147 | static inline int mem_cgroup_charge_swapin_page(struct page *page,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:1228: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:185: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.


vim +1149 include/linux/memcontrol.h

1146
1147 static inline int mem_cgroup_charge_swapin_page(struct page *page,
1148 struct mm_struct *mm, gfp_t gfp, swp_entry_t entry);
> 1149 {
1150 return 0;
1151 }
1152

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