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[2620:137:e000::1:20]) by mx.google.com with ESMTP id j25-20020a635519000000b0050303dea3f0si2130356pgb.572.2023.03.17.05.51.09; Fri, 17 Mar 2023 05:51:23 -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; 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=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230378AbjCQMuC (ORCPT + 99 others); Fri, 17 Mar 2023 08:50:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56662 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230398AbjCQMtw (ORCPT ); Fri, 17 Mar 2023 08:49:52 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1059C6B303 for ; Fri, 17 Mar 2023 05:49:50 -0700 (PDT) Received: from dggpeml500004.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4PdP843qK5znVJf; Fri, 17 Mar 2023 20:48:52 +0800 (CST) Received: from DESKTOP-EJM108K.china.huawei.com (10.174.186.25) by dggpeml500004.china.huawei.com (7.185.36.140) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Fri, 17 Mar 2023 20:49:48 +0800 From: Dongxu Sun To: , , CC: , , , Dongxu Sun Subject: [PATCH 4/4] arm64/sme: Fix some comments of ARM SME Date: Fri, 17 Mar 2023 20:49:15 +0800 Message-ID: <20230317124915.1263-5-sundongxu3@huawei.com> X-Mailer: git-send-email 2.33.0.windows.2 In-Reply-To: <20230317124915.1263-1-sundongxu3@huawei.com> References: <20230317124915.1263-1-sundongxu3@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.174.186.25] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpeml500004.china.huawei.com (7.185.36.140) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1760619379985736195?= X-GMAIL-MSGID: =?utf-8?q?1760619379985736195?= When TIF_SME is clear, fpsimd_restore_current_state will disable SME trap during ret_to_user, then SME access trap is impossible in userspace, not SVE. Besides, fix typo: alocated->allocated. Signed-off-by: Dongxu Sun Reviewed-by: Mark Brown --- arch/arm64/kernel/fpsimd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c index 692dfefbe0ed..41b8f2052689 100644 --- a/arch/arm64/kernel/fpsimd.c +++ b/arch/arm64/kernel/fpsimd.c @@ -299,7 +299,7 @@ void task_set_vl_onexec(struct task_struct *task, enum vec_type type, /* * TIF_SME controls whether a task can use SME without trapping while * in userspace, when TIF_SME is set then we must have storage - * alocated in sve_state and sme_state to store the contents of both ZA + * allocated in sve_state and sme_state to store the contents of both ZA * and the SVE registers for both streaming and non-streaming modes. * * If both SVCR.ZA and SVCR.SM are disabled then at any point we @@ -1477,7 +1477,7 @@ void do_sve_acc(unsigned long esr, struct pt_regs *regs) * * TIF_SME should be clear on entry: otherwise, fpsimd_restore_current_state() * would have disabled the SME access trap for userspace during - * ret_to_user, making an SVE access trap impossible in that case. + * ret_to_user, making an SME access trap impossible in that case. */ void do_sme_acc(unsigned long esr, struct pt_regs *regs) {