On Thu, Oct 1, 2020 at 7:58 PM <elver@xxxxxxxxxx> wrote: > > On Fri, Sep 25, 2020 at 12:50AM +0200, Andrey Konovalov wrote: > > Hardware tag-based KASAN has granules of MTE_GRANULE_SIZE. Define > > KASAN_GRANULE_SIZE to MTE_GRANULE_SIZE for CONFIG_KASAN_HW_TAGS. > > > > Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx> > > Signed-off-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx> > > Reviewed-by: Marco Elver <elver@xxxxxxxxxx> > > > --- > > Change-Id: I5d1117e6a991cbca00d2cfb4ba66e8ae2d8f513a > > --- > > mm/kasan/kasan.h | 6 ++++++ > > 1 file changed, 6 insertions(+) > > > > diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h > > index 9c73f324e3ce..bd51ab72c002 100644 > > --- a/mm/kasan/kasan.h > > +++ b/mm/kasan/kasan.h > > @@ -5,7 +5,13 @@ > > #include <linux/kasan.h> > > #include <linux/stackdepot.h> > > > > +#if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) > > #define KASAN_GRANULE_SIZE (1UL << KASAN_SHADOW_SCALE_SHIFT) > > +#else > > +#include <asm/mte-kasan.h> > > +#define KASAN_GRANULE_SIZE (MTE_GRANULE_SIZE) > > Why braces? Shouldn't MTE_GRANULE_SIZE already have braces? Will fix in v4, thanks! > > > +#endif > > + > > #define KASAN_GRANULE_MASK (KASAN_GRANULE_SIZE - 1) > > #define KASAN_GRANULE_PAGE (KASAN_GRANULE_SIZE << PAGE_SHIFT) > > > > -- > > 2.28.0.681.g6f77f65b4e-goog > >
