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Sun, 10 Aug 2025 05:58:10 -0700 (PDT) From: Sabyrzhan Tasbolatov To: ryabinin.a.a@gmail.com, christophe.leroy@csgroup.eu, bhe@redhat.com, hca@linux.ibm.com, andreyknvl@gmail.com, akpm@linux-foundation.org, zhangqing@loongson.cn, chenhuacai@loongson.cn, davidgow@google.com, glider@google.com, dvyukov@google.com, alexghiti@rivosinc.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 Subject: [PATCH v6 2/2] kasan: call kasan_init_generic in kasan_init Date: Sun, 10 Aug 2025 17:57:46 +0500 Message-Id: <20250810125746.1105476-3-snovitoll@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250810125746.1105476-1-snovitoll@gmail.com> References: <20250810125746.1105476-1-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 Reviewed-by: Christophe Leroy --- Changes in v6: - Call kasan_init_generic() in arch/riscv _after_ local_flush_tlb_all() --- 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 111d4f703136..c6625e808bf8 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 d541ce45daeb..abeb81bf6ebd 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 41c635d6aca4..c4a2a9e5586e 100644 --- a/arch/riscv/mm/kasan_init.c +++ b/arch/riscv/mm/kasan_init.c @@ -533,4 +533,5 @@ void __init kasan_init(void) =20 csr_write(CSR_SATP, PFN_DOWN(__pa(swapper_pg_dir)) | satp_mode); local_flush_tlb_all(); + kasan_init_generic(); } diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 9adfbdd377dc..544e5403dd91 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 0539efd0d216..998b6010d6d3 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 f39c4d83173a..0524b9ed5e63 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