Messages in this thread | | | Date | Wed, 4 Nov 2020 20:17:33 +0100 | From | Vasily Gorbik <> | Subject | Re: [PATCH v7 34/41] kasan, x86, s390: update undef CONFIG_KASAN |
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On Mon, Nov 02, 2020 at 05:04:14PM +0100, Andrey Konovalov wrote: > With the intoduction of hardware tag-based KASAN some kernel checks of > this kind: > > ifdef CONFIG_KASAN > > will be updated to: > > if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) > > x86 and s390 use a trick to #undef CONFIG_KASAN for some of the code > that isn't linked with KASAN runtime and shouldn't have any KASAN > annotations. > > Also #undef CONFIG_KASAN_GENERIC with CONFIG_KASAN. > > Signed-off-by: Andrey Konovalov <andreyknvl@google.com> > Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> > Reviewed-by: Marco Elver <elver@google.com> > --- > Change-Id: I2a622db0cb86a8feb60c30d8cb09190075be2a90 > --- > arch/s390/boot/string.c | 1 + > arch/x86/boot/compressed/misc.h | 1 + > 2 files changed, 2 insertions(+) > > diff --git a/arch/s390/boot/string.c b/arch/s390/boot/string.c > index b11e8108773a..faccb33b462c 100644 > --- a/arch/s390/boot/string.c > +++ b/arch/s390/boot/string.c > @@ -3,6 +3,7 @@ > #include <linux/kernel.h> > #include <linux/errno.h> > #undef CONFIG_KASAN > +#undef CONFIG_KASAN_GENERIC > #include "../lib/string.c"
for s390 part Acked-by: Vasily Gorbik <gor@linux.ibm.com>
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