From patchwork Wed Oct 19 03:49:42 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kefeng Wang X-Patchwork-Id: 13011323 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2400CC4332F for ; Wed, 19 Oct 2022 03:30:12 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id ADA4E6B0074; Tue, 18 Oct 2022 23:30:11 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A8A1D6B0075; Tue, 18 Oct 2022 23:30:11 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 978B16B0078; Tue, 18 Oct 2022 23:30:11 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 8D6456B0074 for ; Tue, 18 Oct 2022 23:30:11 -0400 (EDT) Received: from smtpin24.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 65E29C020C for ; Wed, 19 Oct 2022 03:30:11 +0000 (UTC) X-FDA: 80036270622.24.C336468 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by imf21.hostedemail.com (Postfix) with ESMTP id 5726B1C0028 for ; Wed, 19 Oct 2022 03:30:09 +0000 (UTC) Received: from dggpemm500024.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4Msbny0JjPzHv4h; Wed, 19 Oct 2022 11:29:58 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggpemm500024.china.huawei.com (7.185.36.203) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Wed, 19 Oct 2022 11:29:57 +0800 Received: from localhost.localdomain.localdomain (10.175.113.25) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Wed, 19 Oct 2022 11:29:56 +0800 From: Kefeng Wang To: , Andrew Morton CC: Dinh Nguyen , Jarkko Sakkinen , Dave Hansen , , , , Kefeng Wang Subject: [PATCH 2/5] x86/sgx: use VM_ACCESS_FLAGS Date: Wed, 19 Oct 2022 11:49:42 +0800 Message-ID: <20221019034945.93081-3-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20221019034945.93081-1-wangkefeng.wang@huawei.com> References: <20221019034945.93081-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected ARC-Authentication-Results: i=1; imf21.hostedemail.com; dkim=none; spf=pass (imf21.hostedemail.com: domain of wangkefeng.wang@huawei.com designates 45.249.212.188 as permitted sender) smtp.mailfrom=wangkefeng.wang@huawei.com; dmarc=pass (policy=quarantine) header.from=huawei.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1666150210; a=rsa-sha256; cv=none; b=BfBK6I83825Kpgm2NUukATHzVkkz8Y0m4KGpTa85jV7v+MmwfSzyoHbgLKvwIa/lqaofDA rRrJVIQCPOALDSwfYtI5MhnmsbSAwYVWPdijirnfEic1DAMXEc+558UM4DIRvO6xlKpYnT IBUELe+Wtq0T4Rf+S078cBJWVEhWJgE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1666150210; h=from:from:sender: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=kHHJyDT2hgQmZR5mRQG4tLDHVs0Z/pdo4jfpgZD/puE=; b=tuGE8ipTyDSflzUoWi2Z3k+xsHUkVwA5aemqJCOGfmOYjcgrDyK0Ku4pNIMWxu299OhOnj FTkdz3EcHqosuvUZvtQmzvqDcxozKt7asft1F1ueRQJl2izRrHVOavT+ThVEZL6KQ3Ex1U PL/qID5HuzOGJ5OHkPclQxlUzLf4HeA= X-Stat-Signature: bxqtqstsy8uzy6qjtjup3pz9erfxrrdn X-Rspamd-Queue-Id: 5726B1C0028 Authentication-Results: imf21.hostedemail.com; dkim=none; spf=pass (imf21.hostedemail.com: domain of wangkefeng.wang@huawei.com designates 45.249.212.188 as permitted sender) smtp.mailfrom=wangkefeng.wang@huawei.com; dmarc=pass (policy=quarantine) header.from=huawei.com X-Rspam-User: X-Rspamd-Server: rspam01 X-HE-Tag: 1666150209-728923 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: Simplify VM_READ|VM_WRITE|VM_EXEC with VM_ACCESS_FLAGS. Cc: Jarkko Sakkinen Cc: Dave Hansen Signed-off-by: Kefeng Wang --- arch/x86/kernel/cpu/sgx/encl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/sgx/encl.c b/arch/x86/kernel/cpu/sgx/encl.c index 1ec20807de1e..6225c525372d 100644 --- a/arch/x86/kernel/cpu/sgx/encl.c +++ b/arch/x86/kernel/cpu/sgx/encl.c @@ -268,7 +268,7 @@ static struct sgx_encl_page *sgx_encl_load_page_in_vma(struct sgx_encl *encl, unsigned long addr, unsigned long vm_flags) { - unsigned long vm_prot_bits = vm_flags & (VM_READ | VM_WRITE | VM_EXEC); + unsigned long vm_prot_bits = vm_flags & VM_ACCESS_FLAGS; struct sgx_encl_page *entry; entry = xa_load(&encl->page_array, PFN_DOWN(addr)); @@ -502,7 +502,7 @@ static void sgx_vma_open(struct vm_area_struct *vma) int sgx_encl_may_map(struct sgx_encl *encl, unsigned long start, unsigned long end, unsigned long vm_flags) { - unsigned long vm_prot_bits = vm_flags & (VM_READ | VM_WRITE | VM_EXEC); + unsigned long vm_prot_bits = vm_flags & VM_ACCESS_FLAGS; struct sgx_encl_page *page; unsigned long count = 0; int ret = 0;