Messages in this thread | | | From | Uros Bizjak <> | Date | Mon, 9 Oct 2023 16:35:09 +0200 | Subject | Re: [PATCH 4/4] x86/percpu: Use C for percpu read/write accessors |
| |
On Mon, Oct 9, 2023 at 1:41 PM Ingo Molnar <mingo@kernel.org> wrote: > > > * Uros Bizjak <ubizjak@gmail.com> wrote: > > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > > index ecb256954351..1edf4a5b93ca 100644 > > --- a/arch/x86/Kconfig > > +++ b/arch/x86/Kconfig > > @@ -2393,7 +2393,7 @@ config CC_HAS_NAMED_AS > > > > config USE_X86_SEG_SUPPORT > > def_bool y > > - depends on CC_HAS_NAMED_AS && SMP > > + depends on CC_HAS_NAMED_AS && SMP && !KASAN > > + depends on CC_HAS_NAMED_AS && SMP && !KASAN > > So I'd rather express this as a Kconfig quirk line, and explain each quirk. > > Something like: > > depends on CC_HAS_NAMED_AS > depends on SMP > # > # -fsanitize=kernel-address (KASAN) is at the moment incompatible > # with named address spaces - see GCC bug #12345. > # > depends on !KASAN
This is now PR sanitizer/111736 [1], but perhaps KASAN people [CC'd] also want to be notified about this problem.
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111736
Thanks, Uros.
| |