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[2620:137:e000::1:20]) by mx.google.com with ESMTP id q123-20020a632a81000000b005644829012fsi3194343pgq.701.2023.08.19.04.59.19; Sat, 19 Aug 2023 04:59:33 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=sYn9I40S; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233735AbjHOAse (ORCPT + 99 others); Mon, 14 Aug 2023 20:48:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58110 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233502AbjHOAsU (ORCPT ); Mon, 14 Aug 2023 20:48:20 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 373621723 for ; Mon, 14 Aug 2023 17:48:20 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id C946D640F6 for ; Tue, 15 Aug 2023 00:48:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E6F3CC433CB; Tue, 15 Aug 2023 00:48:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1692060499; bh=YH1Bc28nzEk45ZXRwo0o5JTtxWlnUgrQ7Atrmj3ROek=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sYn9I40SFgdPcfvO+C1hyvCYNpDILybAVYz26koAmqj/kKoLVs8PazZpg2vzGnFyG D+QnTkdkKTqjl9/c7LFQqsMCSe31rR9RqvluNm04G7sFNwExJ2BEX9D1xdgFxQj3q7 g9ZiBKNtZCtVvRQcUrlUSbYqCGuO0eWBy24njidcrnEZNKQPsKSol0n+efHEJaJ3xL VYDMzZZCeJo6RBOUl2KkCZDpA0Aq5h/r6XDbJpWyJ/ugdrSD8DphbH+xRlcT0+N76q 6yZq5j9IYGgWwnnvotQuESl5w9b97H8QiQ9Rk07XnY9l9Kc64Twm3/nI9PyNnfzSgr pD+WPdvs/ATOw== From: Vineet Gupta To: linux-snps-arc@lists.infradead.org Cc: linux-kernel@vger.kernel.org, Shahab Vahedi , Alexey Brodkin , Vineet Gupta Subject: [PATCH 02/20] ARC: uaccess: use optimized generic __strnlen_user/__strncpy_from_user Date: Mon, 14 Aug 2023 17:47:55 -0700 Message-Id: <20230815004813.555115-3-vgupta@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230815004813.555115-1-vgupta@kernel.org> References: <20230815004813.555115-1-vgupta@kernel.org> MIME-Version: 1.0 X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1774658648194463848 X-GMAIL-MSGID: 1774658648194463848 The existing ARC variants have 2 issues - Use ZOL which may not be present in forthcoming architecture - Byte loop based vs. generic version which is word loop based Signed-off-by: Vineet Gupta --- arch/arc/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 96cf8720bb93..47b4acc7d0c9 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -26,6 +26,8 @@ config ARC select GENERIC_PENDING_IRQ if SMP select GENERIC_SCHED_CLOCK select GENERIC_SMP_IDLE_THREAD + select GENERIC_STRNCPY_FROM_USER if MMU + select GENERIC_STRNLEN_USER if MMU select HAVE_ARCH_KGDB select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_TRANSPARENT_HUGEPAGE if ARC_MMU_V4