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Fri, 18 Jul 2025 12:38:15 GMT Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E2E4A2004B; Fri, 18 Jul 2025 12:38:14 +0000 (GMT) Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B69C620043; Fri, 18 Jul 2025 12:38:13 +0000 (GMT) Received: from li-008a6a4c-3549-11b2-a85c-c5cc2836eea2.ibm.com (unknown [9.87.132.117]) by smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTPS; Fri, 18 Jul 2025 12:38:13 +0000 (GMT) Date: Fri, 18 Jul 2025 14:38:12 +0200 From: Alexander Gordeev To: Sabyrzhan Tasbolatov Cc: hca@linux.ibm.com, christophe.leroy@csgroup.eu, andreyknvl@gmail.com, akpm@linux-foundation.org, ryabinin.a.a@gmail.com, glider@google.com, dvyukov@google.com, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-um@lists.infradead.org, linux-mm@kvack.org Subject: Re: [PATCH v3 10/12] kasan/s390: call kasan_init_generic in kasan_init Message-ID: <8412bf39-8235-4abb-ae35-db6029a605b3-agordeev@linux.ibm.com> References: <20250717142732.292822-1-snovitoll@gmail.com> <20250717142732.292822-11-snovitoll@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; 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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 > --- > 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 > #include > #include > +#include > #include > #include > #include > @@ -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