The patch titled Subject: selftests/mm: Makefile: add the compiler flags has been added to the -mm mm-unstable branch. Its filename is selftests-mm-makefile-add-the-compiler-flags.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-mm-makefile-add-the-compiler-flags.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: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx> Subject: selftests/mm: Makefile: add the compiler flags Date: Thu, 9 Jan 2025 22:38:42 +0500 Add the compiler flags to catch warnings during development. Link: https://lkml.kernel.org/r/20250109173842.1142376-17-usama.anjum@xxxxxxxxxxxxx Signed-off-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx> Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx> Cc: Jérôme Glisse <jglisse@xxxxxxxxxx> Cc: Kees Cook <kees@xxxxxxxxxx> Cc: Shuah Khan <shuah@xxxxxxxxxx> Cc: Will Drewry <wad@xxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/mm/Makefile | 1 + 1 file changed, 1 insertion(+) --- a/tools/testing/selftests/mm/Makefile~selftests-mm-makefile-add-the-compiler-flags +++ a/tools/testing/selftests/mm/Makefile @@ -34,6 +34,7 @@ endif MAKEFLAGS += --no-builtin-rules CFLAGS = -Wall -O2 -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES) +CFLAGS += -Wunreachable-code -Wunused -Wunused-parameter -Wunused-function -Wunused-variable LDLIBS = -lrt -lpthread -lm # Some distributions (such as Ubuntu) configure GCC so that _FORTIFY_SOURCE is _ Patches currently in -mm which might be from usama.anjum@xxxxxxxxxxxxx are selftests-mm-thp_settings-remove-const-from-return-type.patch selftests-mm-pagemap_ioctl-fix-types-mismatches-shown-by-compiler-options.patch selftests-mm-mseal_test-remove-unused-variables.patch selftests-mm-mremap_test-remove-unused-variable-and-type-mismatches.patch selftests-mm-remove-argc-and-argv-unused-parameters.patch selftests-mm-fix-unused-parameter-warnings.patch selftests-mm-fix-type-mismatch-warnings.patch selftests-mm-kselftest_harness-fix-warnings.patch selftests-mm-cow-remove-unused-variables-and-fix-type-mismatch-errors.patch selftests-mm-hmm-tests-remove-always-false-expressions.patch selftests-mm-guard-pages-fix-type-mismatch-warnings.patch selftests-mm-hugetlb-madvise-fix-type-mismatch-issues.patch selftests-mm-hugepage-vmemmap-fix-type-mismatch-warnings.patch selftests-mm-hugetlb-read-hwpoison-fix-type-mismatch-warnings.patch selftests-mm-khugepaged-fix-type-mismatch-warnings.patch selftests-mm-protection_keys-fix-variables-types-mismatch-warnings.patch selftests-mm-thuge-gen-fix-type-mismatch-warnings.patch selftests-mm-uffd-fix-all-type-mismatch-warnings.patch selftests-mm-makefile-add-the-compiler-flags.patch