Hi Greg, Yes, looks we only need this for linux-6.12.y. Maybe we could use the v1 version which does not include the linux-6.13.y tag. Or I can send a v3 with the linux-6.12.y only. Thank you Yifei > On Feb 5, 2025, at 4:14 AM, Greg KH <greg@xxxxxxxxx> wrote: > > On Tue, Feb 04, 2025 at 01:47:23PM -0800, Yifei Liu wrote: >> From: Kevin Brodsky <kevin.brodsky@xxxxxxx> >> >> [ Upstream commit 46036188ea1f5266df23a6149dea0df1c77cd1c7 ] >> >> 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. >> >> [kevin.brodsky@xxxxxxx: silence unused-result warnings] >> Link: https://urldefense.com/v3/__https://lkml.kernel.org/r/20250107170110.2819685-1-kevin.brodsky@arm.com__;!!ACWV5N9M2RV99hQ!JIxpb3_RVcibhnrztlfGaVeRUIlL7ftDa-hoIMVYb3IzJShJ_6Bqq0qNo_-LIwFSbbFw_UgU3BY0$ >> Link: https://urldefense.com/v3/__https://lkml.kernel.org/r/20241209095019.1732120-6-kevin.brodsky@arm.com__;!!ACWV5N9M2RV99hQ!JIxpb3_RVcibhnrztlfGaVeRUIlL7ftDa-hoIMVYb3IzJShJ_6Bqq0qNo_-LIwFSbbFw_cKwGHfl$ >> 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> >> (cherry picked from commit 46036188ea1f5266df23a6149dea0df1c77cd1c7) >> [Yifei: This commit also fix the failure of pkey_sighandler_tests_64, >> which is also in linux-6.12.y and linux-6.13.y, thus backport this commit] >> Signed-off-by: Yifei Liu <yifei.l.liu@xxxxxxxxxx> >> --- >> tools/testing/selftests/mm/Makefile | 9 ++++++++- >> 1 file changed, 8 insertions(+), 1 deletion(-) >> >> diff --git a/tools/testing/selftests/mm/Makefile b/tools/testing/selftests/mm/Makefile >> index 02e1204971b0..c0138cb19705 100644 >> --- a/tools/testing/selftests/mm/Makefile >> +++ b/tools/testing/selftests/mm/Makefile >> @@ -33,9 +33,16 @@ 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 >> >> +# Some distributions (such as Ubuntu) configure GCC so that _FORTIFY_SOURCE is >> +# automatically enabled at -O1 or above. This triggers various unused-result >> +# warnings where functions such as read() or write() are called and their >> +# return value is not checked. Disable _FORTIFY_SOURCE to silence those >> +# warnings. >> +CFLAGS += -U_FORTIFY_SOURCE >> + >> TEST_GEN_FILES = cow >> TEST_GEN_FILES += compaction_test >> TEST_GEN_FILES += gup_longterm > > This does not apply to 6.13 :( >