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[178.90.89.143]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-55b88c98c2asm2793570e87.77.2025.08.07.12.40.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Aug 2025 12:40:26 -0700 (PDT) From: Sabyrzhan Tasbolatov To: ryabinin.a.a@gmail.com, bhe@redhat.com, hca@linux.ibm.com, christophe.leroy@csgroup.eu, andreyknvl@gmail.com, akpm@linux-foundation.org, zhangqing@loongson.cn, chenhuacai@loongson.cn, davidgow@google.co, glider@google.com, dvyukov@google.com Cc: alex@ghiti.fr, agordeev@linux.ibm.com, vincenzo.frascino@arm.com, elver@google.com, kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org, 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, snovitoll@gmail.com, Alexandre Ghiti Subject: [PATCH v5 2/2] kasan: call kasan_init_generic in kasan_init Date: Fri, 8 Aug 2025 00:40:12 +0500 Message-Id: <20250807194012.631367-3-snovitoll@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250807194012.631367-1-snovitoll@gmail.com> References: <20250807194012.631367-1-snovitoll@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Call kasan_init_generic() which handles Generic KASAN initialization. For architectures that do not select ARCH_DEFER_KASAN, this will be a no-op for the runtime flag but will print the initialization banner. For SW_TAGS and HW_TAGS modes, their respective init functions will handle the flag enabling, if they are enabled/implemented. Closes: https://bugzilla.kernel.org/show_bug.cgi?id=3D217049 Signed-off-by: Sabyrzhan Tasbolatov Tested-by: Alexandre Ghiti # riscv Acked-by: Alexander Gordeev # s390 --- Changes in v5: - Unified arch patches into a single one, where we just call kasan_init_generic() - Added Tested-by tag for riscv (tested the same change in v4) - Added Acked-by tag for s390 (tested the same change in v4) --- arch/arm/mm/kasan_init.c | 2 +- arch/arm64/mm/kasan_init.c | 4 +--- arch/riscv/mm/kasan_init.c | 1 + arch/s390/kernel/early.c | 3 ++- arch/x86/mm/kasan_init_64.c | 2 +- arch/xtensa/mm/kasan_init.c | 2 +- 6 files changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/arm/mm/kasan_init.c b/arch/arm/mm/kasan_init.c index 111d4f70313..c6625e808bf 100644 --- a/arch/arm/mm/kasan_init.c +++ b/arch/arm/mm/kasan_init.c @@ -300,6 +300,6 @@ void __init kasan_init(void) local_flush_tlb_all(); =20 memset(kasan_early_shadow_page, 0, PAGE_SIZE); - pr_info("Kernel address sanitizer initialized\n"); init_task.kasan_depth =3D 0; + kasan_init_generic(); } diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c index d541ce45dae..abeb81bf6eb 100644 --- a/arch/arm64/mm/kasan_init.c +++ b/arch/arm64/mm/kasan_init.c @@ -399,14 +399,12 @@ void __init kasan_init(void) { kasan_init_shadow(); kasan_init_depth(); -#if defined(CONFIG_KASAN_GENERIC) + kasan_init_generic(); /* * Generic KASAN is now fully initialized. * Software and Hardware Tag-Based modes still require * kasan_init_sw_tags() and kasan_init_hw_tags() correspondingly. */ - pr_info("KernelAddressSanitizer initialized (generic)\n"); -#endif } =20 #endif /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */ diff --git a/arch/riscv/mm/kasan_init.c b/arch/riscv/mm/kasan_init.c index 41c635d6aca..ba2709b1eec 100644 --- a/arch/riscv/mm/kasan_init.c +++ b/arch/riscv/mm/kasan_init.c @@ -530,6 +530,7 @@ void __init kasan_init(void) =20 memset(kasan_early_shadow_page, KASAN_SHADOW_INIT, PAGE_SIZE); init_task.kasan_depth =3D 0; + kasan_init_generic(); =20 csr_write(CSR_SATP, PFN_DOWN(__pa(swapper_pg_dir)) | satp_mode); local_flush_tlb_all(); diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 9adfbdd377d..544e5403dd9 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 =3D 0; - pr_info("KernelAddressSanitizer initialized\n"); + kasan_init_generic(); #endif } =20 diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c index 0539efd0d21..998b6010d6d 100644 --- a/arch/x86/mm/kasan_init_64.c +++ b/arch/x86/mm/kasan_init_64.c @@ -451,5 +451,5 @@ void __init kasan_init(void) __flush_tlb_all(); =20 init_task.kasan_depth =3D 0; - pr_info("KernelAddressSanitizer initialized\n"); + kasan_init_generic(); } diff --git a/arch/xtensa/mm/kasan_init.c b/arch/xtensa/mm/kasan_init.c index f39c4d83173..0524b9ed5e6 100644 --- a/arch/xtensa/mm/kasan_init.c +++ b/arch/xtensa/mm/kasan_init.c @@ -94,5 +94,5 @@ void __init kasan_init(void) =20 /* At this point kasan is fully initialized. Enable error messages. */ current->kasan_depth =3D 0; - pr_info("KernelAddressSanitizer initialized\n"); + kasan_init_generic(); } --=20 2.34.1