From nobody Mon Dec 1 22:04:02 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1B50B2D8DB9 for ; Fri, 28 Nov 2025 03:34:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764300876; cv=none; b=GcWIVJ3K6llU5iq7e05v5AW0xZQjgTS4PsrlQ7UWDViKAtuXqIeRsx3tsLeO4UcJq/JzId7mM0vP9kWtLBOFkbskwU0mMFLpbHy8N0QD8iK+lGP3EZddg6TAheigL2MWN9YA9K5TMINP7ELZ37WRLMG47XrsQtgEV/nGk0zbSO8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764300876; c=relaxed/simple; bh=LYPAxPfQheSOPcxHcMg5qF/UCm6JJ/RntC8aW1jl16U=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-type; b=ZqXg1O6eEh9m22g+rGfqO9qabd+3MF+SBQpZjAsMgbgTJfKhmnzFG4rR0u533EYCGPbkGb9CPUeMw+oehcyIj/HvOto3ihGWGV2i5YxW7X37Kj9tPJYu0JydsJUJN4TsMUqdM6EZik5ZSQqLJAG/KWhl/BXXX66XtZH0L7MCgcU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=YXJx71Lb; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="YXJx71Lb" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1764300872; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=lfKMAPgOw/dmuGwbVXfO4D5MkyZDnIUQ+/VwPEWi/wc=; b=YXJx71LbaEbRjfyjxyE4tf8kSBlWYEmzWjqPBcRRzsmDHgUnnMDOqgHTM7Ki2VFQ1+G1an OPFaST+KNYY7HcUUS/g45rnLIRyDn8a7kB5cW+v5ljoBIB/u9YGWh2djNSdXKCrdkNqGCW MaQSMiZKp3TzPaWzU6aFxHzQx0TdlE8= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-115-zjYbfpDXMs6rEpZfQ8z1Kw-1; Thu, 27 Nov 2025 22:34:28 -0500 X-MC-Unique: zjYbfpDXMs6rEpZfQ8z1Kw-1 X-Mimecast-MFC-AGG-ID: zjYbfpDXMs6rEpZfQ8z1Kw_1764300866 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 256E11800473; 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> 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 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Content-Type: text/plain; charset="utf-8" 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; =20 + 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. --=20 2.41.0