[PATCH v2 31/37] kasan, x86, s390: update undef CONFIG_KASAN
andreyknvl at google.com
Thu Sep 24 17:35:59 EDT 2020
On Fri, Sep 18, 2020 at 5:07 PM Andrey Konovalov <andreyknvl at google.com> wrote:
> On Fri, Sep 18, 2020 at 12:52 PM Marco Elver <elver at google.com> wrote:
> > On Tue, Sep 15, 2020 at 11:16PM +0200, Andrey Konovalov wrote:
> > [...]
> > > 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
> > Is CONFIG_KASAN still used to guard instrumented versions of functions?
> > It looks like #undef CONFIG_KASAN is no longer needed -- at least
> > <linux/string.h> no longer mentions it.
> I'm pretty sure this is still necessary (something didn't work when I
> forgot to make this change), but I'll check again.
Yes, it still fails, as compressed code provides its own memmove.
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