mm: huge_memory.c:2736:31: error: variable 'page' is uninitialized when used here [-Werror,-Wuninitialized]

From: Naresh Kamboju
Date: Wed Jun 26 2024 - 12:45:52 EST


The x86_64 clang builds failed on Linux next due to these warnings / errors.

Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>

Build error:
------
mm/huge_memory.c:2736:31: error: variable 'page' is uninitialized when
used here [-Werror,-Wuninitialized]
2736 | folio_remove_rmap_pmd(folio, page, vma);
| ^~~~
/builds/linux/mm/huge_memory.c:2700:19: note: initialize the variable
'page' to silence this warning
2700 | struct page *page;
| ^
| = NULL
1 error generated.

patch that is causing this build failures,
mm/vmscan: avoid split lazyfree THP during shrink_folio_list()

metadata:

--
git_describe: next-20240625
git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
git_short_log: 0fc4bfab2cd4 ("Add linux-next specific files for 20240625")
arch: x86_64
toolchain: clang-18

Links:
- https://storage.tuxsuite.com/public/linaro/lkft/builds/2iNfPlsMdxsqZTOC14r1xZZxq8X/
- https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240625/testrun/24448204/suite/build/test/clang-18-lkftconfig/details/

--
Linaro LKFT
https://lkft.linaro.org