> And indeed the subject states that this is a cpumasks-related warninig. > Cpumask is a global subsystem. If you believe that this warning is > false-positive, it may show up for any other random victim. Please > suppress it globally. > Yes you were correct, this warning might appear for any other random victims. But as I mentioned earlier, so far I've only encountered it with kernel/padata.c file. So, if we want to reduce the blast radius then wouldn't it be sufficient to just silence it only while compiling kernel/padata.c file? Or do you still suggest disabling it at global level would be more helpful? I'm OK with either way moving forward. Please let me know. > Thanks, > Yury > Thanks, --Nilay >> >> Link: https://lore.kernel.org/all/7cbbd751-8332-4ab2-afa7-8c353834772a@xxxxxxxxxxxxx/ >> Cc: briannorris@xxxxxxxxxxxx >> Cc: kees@xxxxxxxxxx >> Cc: nathan@xxxxxxxxxx >> Cc: yury.norov@xxxxxxxxx >> Cc: steffen.klassert@xxxxxxxxxxx >> Cc: daniel.m.jordan@xxxxxxxxxx >> Cc: linux-crypto@xxxxxxxxxxxxxxx >> Cc: linux@xxxxxxxxxxxxxx >> Cc: gjoyce@xxxxxxx >> Reviewed-by: Brian Norris <briannorris@xxxxxxxxxxxx> >> Signed-off-by: Nilay Shroff <nilay@xxxxxxxxxxxxx> >> --- >> Changes from v1: >> - Fix spell error in the commit message (Brian Norris) >> - Add commentary around change to note that changes are needed to >> avoid false positive on gcc 13+ (Brian Norris) >> - Add the kerenl/padata.c file maintainers (Brian Norris) >> --- >> >> kernel/Makefile | 4 ++++ >> 1 file changed, 4 insertions(+) >> >> diff --git a/kernel/Makefile b/kernel/Makefile >> index 87866b037fbe..03242d8870c7 100644 >> --- a/kernel/Makefile >> +++ b/kernel/Makefile >> @@ -120,6 +120,10 @@ obj-$(CONFIG_CFI_CLANG) += cfi.o >> obj-$(CONFIG_PERF_EVENTS) += events/ >> >> obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o >> + >> +# Silence the false positive stringop-overread errors on GCC 13+ >> +CFLAGS_padata.o += $(call cc-disable-warning, stringop-overread) >> + >> obj-$(CONFIG_PADATA) += padata.o >> obj-$(CONFIG_JUMP_LABEL) += jump_label.o >> obj-$(CONFIG_CONTEXT_TRACKING) += context_tracking.o >> -- >> 2.45.2
