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Fri, 28 Nov 2025 03:34:26 +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 A827D19560B0; Fri, 28 Nov 2025 03:34:18 +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 , loongarch@lists.linux.dev Subject: [PATCH v4 06/12] arch/loongarch: don't initialize kasan if it's disabled Date: Fri, 28 Nov 2025 11:33:14 +0800 Message-ID: <20251128033320.1349620-7-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-Server: rspam08 X-Rspamd-Queue-Id: 4D4C720008 X-Stat-Signature: qrxpmmr86wh9khqhws3pozrdawq7368a X-Rspam-User: X-HE-Tag: 1764300872-813058 X-HE-Meta: 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 av4a6YMH j2zlV6pDUGZDVnAgUqXweotLhs8LEgU4ohegcgu4ioz9DYtEvwfEnf+Q8mXX8sdgEqYMnLB02aW/AV/cT7GIqNmjBri8XY4YKzqvAZpwQcX6X87fOMiPZ07M5Hbdh7HsayyebVdUbqgpz5OSxgCaHjHHkh3uC6rn1qe4wHorH/nOzwastwTHKaE1JoWkmil5BLx1DR+eCN1HRId9S0fsioygh8k8O1FRejxWE9eyjraSP0k13Loak1/V1H4m+QtfqCSu8M1QciZMOdnvdq88ZohM/jTA0m+yzein0mfTkHZ/OdrV1lNw7hlmF8jThOywjZ2RO4L5P6ufLg7jxlWolGOefMYeV3LS0i//a8TTmwJlVjESpsEfQbB0l/jrYe32+l3ymvjIYK0/fhW24WZFGf7GtVg== 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: loongarch@lists.linux.dev --- arch/loongarch/mm/kasan_init.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/loongarch/mm/kasan_init.c b/arch/loongarch/mm/kasan_init.c index 170da98ad4f5..61bce6a4b4bb 100644 --- a/arch/loongarch/mm/kasan_init.c +++ b/arch/loongarch/mm/kasan_init.c @@ -265,6 +265,8 @@ void __init kasan_init(void) u64 i; phys_addr_t pa_start, pa_end; + if (kasan_arg_disabled) + return; /* * If PGDIR_SIZE is too large for cpu_vabits, KASAN_SHADOW_END will * overflow UINTPTR_MAX and then looks like a user space address. -- 2.41.0