From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 04DA9C6786E for ; Fri, 26 Oct 2018 12:29:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BD46220869 for ; Fri, 26 Oct 2018 12:29:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BD46220869 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727705AbeJZVF5 (ORCPT ); Fri, 26 Oct 2018 17:05:57 -0400 Received: from mga06.intel.com ([134.134.136.31]:12239 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727507AbeJZVF5 (ORCPT ); Fri, 26 Oct 2018 17:05:57 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Oct 2018 05:29:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,427,1534834800"; d="scan'208";a="274669605" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga005.fm.intel.com with ESMTP; 26 Oct 2018 05:28:58 -0700 Received: by black.fi.intel.com (Postfix, from userid 1000) id E6016362; Fri, 26 Oct 2018 15:28:57 +0300 (EEST) From: "Kirill A. Shutemov" To: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org Cc: boris.ostrovsky@oracle.com, jgross@suse.com, bhe@redhat.com, willy@infradead.org, x86@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Subject: [PATCHv3 3/3] x86/ldt: Remove unused variable in map_ldt_struct() Date: Fri, 26 Oct 2018 15:28:56 +0300 Message-Id: <20181026122856.66224-4-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181026122856.66224-1-kirill.shutemov@linux.intel.com> References: <20181026122856.66224-1-kirill.shutemov@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit 9bae3197e15d ("x86/ldt: Split out sanity check in map_ldt_struct()") moved page table syncing into a separate funtion. pgd variable is now unsed in map_ldt_struct(). Signed-off-by: Kirill A. Shutemov --- arch/x86/kernel/ldt.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c index e32f3427438a..5dc8ed202fa8 100644 --- a/arch/x86/kernel/ldt.c +++ b/arch/x86/kernel/ldt.c @@ -206,7 +206,6 @@ map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot) unsigned long va; bool is_vmalloc; spinlock_t *ptl; - pgd_t *pgd; int i, nr_pages; if (!static_cpu_has(X86_FEATURE_PTI)) @@ -221,13 +220,6 @@ map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot) /* Check if the current mappings are sane */ sanity_check_ldt_mapping(mm); - /* - * Did we already have the top level entry allocated? We can't - * use pgd_none() for this because it doens't do anything on - * 4-level page table kernels. - */ - pgd = pgd_offset(mm, LDT_BASE_ADDR); - is_vmalloc = is_vmalloc_addr(ldt->entries); nr_pages = DIV_ROUND_UP(ldt->nr_entries * LDT_ENTRY_SIZE, PAGE_SIZE); -- 2.19.1