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Fri, 28 Nov 2025 03:34:42 +0000 (UTC) Received: from MiWiFi-R3L-srv.redhat.com (unknown [10.72.112.7]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 46F4D19560B0; Fri, 28 Nov 2025 03:34:34 +0000 (UTC) From: Baoquan He To: linux-mm@kvack.org Cc: ryabinin.a.a@gmail.com, andreyknvl@gmail.com, glider@google.com, dvyukov@google.com, vincenzo.frascino@arm.com, akpm@linux-foundation.org, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, kexec@lists.infradead.org, elver@google.com, sj@kernel.org, lorenzo.stoakes@oracle.com, snovitoll@gmail.com, christophe.leroy@csgroup.eu, Baoquan He , linux-riscv@lists.infradead.org Subject: [PATCH v4 08/12] arch/riscv: don't initialize kasan if it's disabled Date: Fri, 28 Nov 2025 11:33:16 +0800 Message-ID: <20251128033320.1349620-9-bhe@redhat.com> In-Reply-To: <20251128033320.1349620-1-bhe@redhat.com> References: <20251128033320.1349620-1-bhe@redhat.com> MIME-Version: 1.0 Content-type: text/plain Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 X-Rspamd-Queue-Id: 774A840013 X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: b8zxaesogycgsgd38w7zypbwxfuwmzy5 X-HE-Tag: 1764300889-873037 X-HE-Meta: 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 4+h4Cb1X zFKXoqo0ikdCFODbz0RFw3YCQ2PILl6djY3MB8j7Z/meqM1Rsn47qSuVuf4qUu25gqbzcB/gZ5oFlvYdnneU1tCivt1mQaBdZgZQsYR80XUfGBDB3RGwY6W1QBQNPRuvlPunBYSaSYyAVDAaQMvWrfmhe6qQ/kscK4blxfEbiych7vzFJjjbN/mIXIR4OGslSYZrAAbdEvTu4Tto2CmYeRWRdNSTQVEO/z8IXOD1coUilhJr/KIlRDHSNEWUe1iLsHPrkFfaf2OEqnTSsCuoESOl4iuVqLqfq03Ww6a5yNFxx4iVshPvjlg7G6G3Cn8Oiv/ghz0TL2MogxubLyr7nJUR2FL6iFl/On3a46Of2U4iqHhAdU5M12e+9iHwl4KR/XgXBppkpNuZ49TZt9FOBC+pYLucFbY/CwZde5geuWvoUG4IZUvt2hQrGyJgbkLWGQ7xTXWqrGsqCmz4= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Signed-off-by: Baoquan He Cc: linux-riscv@lists.infradead.org --- arch/riscv/mm/kasan_init.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/riscv/mm/kasan_init.c b/arch/riscv/mm/kasan_init.c index c4a2a9e5586e..aa464466e482 100644 --- a/arch/riscv/mm/kasan_init.c +++ b/arch/riscv/mm/kasan_init.c @@ -485,6 +485,9 @@ void __init kasan_init(void) phys_addr_t p_start, p_end; u64 i; + if (kasan_arg_disabled) + return; + create_tmp_mapping(); csr_write(CSR_SATP, PFN_DOWN(__pa(tmp_pg_dir)) | satp_mode); -- 2.41.0