On Thu, Jul 17, 2025 at 07:27:30PM +0500, Sabyrzhan Tasbolatov wrote: > Call kasan_init_generic() which handles Generic KASAN initialization > and prints the banner. Since s390 doesn't select ARCH_DEFER_KASAN, > kasan_enable() will be a no-op, and kasan_enabled() will return > IS_ENABLED(CONFIG_KASAN) for optimal compile-time behavior. > > s390 sets up KASAN mappings in the decompressor and can run with KASAN > enabled from very early, so it doesn't need runtime control. > > Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217049 > Signed-off-by: Sabyrzhan Tasbolatov <snovit...@gmail.com> > --- > arch/s390/kernel/early.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c > index 54cf0923050..7ada1324f6a 100644 > --- a/arch/s390/kernel/early.c > +++ b/arch/s390/kernel/early.c > @@ -21,6 +21,7 @@ > #include <linux/kernel.h> > #include <asm/asm-extable.h> > #include <linux/memblock.h> > +#include <linux/kasan.h> > #include <asm/access-regs.h> > #include <asm/asm-offsets.h> > #include <asm/machine.h> > @@ -65,7 +66,7 @@ static void __init kasan_early_init(void) > { > #ifdef CONFIG_KASAN > init_task.kasan_depth = 0; > - pr_info("KernelAddressSanitizer initialized\n"); > + kasan_init_generic(); > #endif > }
Acked-by: Alexander Gordeev <agord...@linux.ibm.com>
