The patch titled Subject: selftests/mm: fix unused variable warning in hugetlb-madvise.c has been added to the -mm mm-unstable branch. Its filename is selftests-mm-fix-unused-variable-warning-in-hugetlb-madvisec.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-mm-fix-unused-variable-warning-in-hugetlb-madvisec.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: John Hubbard <jhubbard@xxxxxxxxxx> Subject: selftests/mm: fix unused variable warning in hugetlb-madvise.c Date: Thu, 1 Jun 2023 18:33:48 -0700 The dummy variable is required in order to make this work, so declare it as volatile in order to avoid the clang compiler warning. Link: https://lkml.kernel.org/r/20230602013358.900637-3-jhubbard@xxxxxxxxxx Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx> Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx> Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> Cc: Johannes Weiner <hannes@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/mm/hugetlb-madvise.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/tools/testing/selftests/mm/hugetlb-madvise.c~selftests-mm-fix-unused-variable-warning-in-hugetlb-madvisec +++ a/tools/testing/selftests/mm/hugetlb-madvise.c @@ -65,7 +65,7 @@ void write_fault_pages(void *addr, unsig void read_fault_pages(void *addr, unsigned long nr_pages) { - unsigned long dummy = 0; + volatile unsigned long dummy = 0; unsigned long i; for (i = 0; i < nr_pages; i++) _ Patches currently in -mm which might be from jhubbard@xxxxxxxxxx are selftests-mm-fix-uffd-stress-unused-function-warning.patch selftests-mm-fix-unused-variable-warning-in-hugetlb-madvisec.patch selftests-mm-fix-unused-variable-warning-in-migrationc.patch selftests-mm-fix-a-char-assignment-in-mlock2-testsc.patch selftests-mm-fix-invocation-of-tests-that-are-run-via-shell-scripts.patch selftests-mm-gitignore-add-mkdirty-va_high_addr_switch.patch selftests-mm-set-wno-format-security-to-avoid-uffd-build-warnings.patch selftests-mm-fix-a-possibly-uninitialized-warning-in-pkey-x86h.patch selftests-mm-move-psize-pshift-into-vm_utilsc.patch selftests-mm-move-uffd-routines-from-vm_utilc-to-uffd-commonc.patch selftests-mm-fix-missing-uffdio_continue_mode_wp-and-similar-build-failures.patch selftests-mm-fix-uffd-unit-testsc-build-failure-due-to-missing-madv_collapse.patch