The patch titled Subject: selftests/mm: build with -O2 has been added to the -mm mm-unstable branch. Its filename is selftests-mm-build-with-o2.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-mm-build-with-o2.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: Kevin Brodsky <kevin.brodsky@xxxxxxx> Subject: selftests/mm: build with -O2 Date: Mon, 9 Dec 2024 09:50:10 +0000 The mm kselftests are currently built with no optimisation (-O0). It's unclear why, and besides being obviously suboptimal, this also prevents the pkeys tests from working as intended. Let's build all the tests with -O2. Link: https://lkml.kernel.org/r/20241209095019.1732120-6-kevin.brodsky@xxxxxxx Signed-off-by: Kevin Brodsky <kevin.brodsky@xxxxxxx> Cc: Aruna Ramakrishna <aruna.ramakrishna@xxxxxxxxxx> Cc: Catalin Marinas <catalin.marinas@xxxxxxx> Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> Cc: Joey Gouly <joey.gouly@xxxxxxx> Cc: Keith Lucas <keith.lucas@xxxxxxxxxx> Cc: Ryan Roberts <ryan.roberts@xxxxxxx> Cc: Shuah Khan <shuah@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/mm/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/tools/testing/selftests/mm/Makefile~selftests-mm-build-with-o2 +++ a/tools/testing/selftests/mm/Makefile @@ -33,7 +33,7 @@ endif # LDLIBS. MAKEFLAGS += --no-builtin-rules -CFLAGS = -Wall -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES) +CFLAGS = -Wall -O2 -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES) LDLIBS = -lrt -lpthread -lm KDIR ?= /lib/modules/$(shell uname -r)/build _ Patches currently in -mm which might be from kevin.brodsky@xxxxxxx are selftests-mm-fix-condition-in-uffd_move_test_common.patch selftests-mm-fix-wmaybe-uninitialized-warnings.patch selftests-mm-fix-strncpy-length.patch selftests-mm-fix-warray-bounds-warnings-in-pkey_sighandler_tests.patch selftests-mm-build-with-o2.patch selftests-mm-remove-unused-pkey-helpers.patch selftests-mm-define-types-using-typedef-in-pkey-helpersh.patch selftests-mm-ensure-pkey-h-define-inline-functions-only.patch selftests-mm-remove-empty-pkey-helper-definition.patch selftests-mm-ensure-non-global-pkey-symbols-are-marked-static.patch selftests-mm-use-sys_pkey-helpers-consistently.patch selftests-mm-rename-pkey-register-macro.patch selftests-mm-skip-pkey_sighandler_tests-if-support-is-missing.patch selftests-mm-remove-x-permission-from-sigaltstack-mapping.patch