Received: by 2002:a5d:9c59:0:0:0:0:0 with SMTP id 25csp185370iof; Wed, 8 Jun 2022 18:57:30 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzITTyaJppQqrhoCXW9zF6hBSzRW5Wn6XO67SuvOfmU1a9+bKn5nYjpNk31S03OseQ2KShX X-Received: by 2002:a17:90b:4d05:b0:1e0:b53:f4a3 with SMTP id mw5-20020a17090b4d0500b001e00b53f4a3mr941227pjb.3.1654739849877; Wed, 08 Jun 2022 18:57:29 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1654739849; cv=none; d=google.com; s=arc-20160816; b=tbMytuSRMBEpwNI+ZCbH7Uuh7W5IaLKGoR3BmDJkZafAmRDIqSzHCtnBkrv0quCoQy yl1DqYARDTYJhlc8dc6hR/YPhJVryy4YiW7ysSYP4IjoCcAuuOXATTlI7WA+BD7R+nY0 VOqMVymxSw6G8IUjYfjql9fX9opPkXUddjLwRw7PP85oPFXyMmrM94M7gOnlIJ1asaUe BD63HPbGHIQ7lyLFqzBrG4i/58+zzKgUqOw25ojU2Ycj2ELa38OKXr73l8CHgI9Fim/q pQnRuNzMFoSx9z0hG5M7l9U6g2U7ZzuRHBt+yypbfGYcud3dI4ItzrcJFjT7v5KBHuYw G01g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:message-id:date:subject:cc:to:from; bh=s+2XaWtoPqVGTl6/afDb1eq4RFuFk1qZclIFuX14Gvk=; b=KEi+cOv7DAraFD0NlvN5rhGIwp3zpLtMxLdBIzegXmL8hHLT660B23SX3F5qN036Fn 6BOgJVs0UYbPIWnhMmjkSN/3cfgH0IMJz0n20xS0i6IdUSmx82yM4kXg9J1DbzA3pESl 1C50HsxgraO5QHdQCZLsWsEw/lVT5tDBifES2Hz/uK21WCxMPoCSm/XXw4T6UsE2x3sH Os3yXasZJh222zKptg7BSsEmNG5cYHAfGFWTjgaKM6aJ7y4ImjwtSPZFCI+oviFOcsAN fpq5DEKr52/uI9Tq2upQ0ff4iX9D6AWoDkoLm53CBGCO4pwMlKNyG0IajoK1g9dZ24iU aICA== ARC-Authentication-Results: i=1; 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 Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id u62-20020a638541000000b003fd37373508si21444175pgd.276.2022.06.08.18.57.08; Wed, 08 Jun 2022 18:57:29 -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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233907AbiFIBar (ORCPT + 99 others); Wed, 8 Jun 2022 21:30:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33226 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234460AbiFIBan (ORCPT ); Wed, 8 Jun 2022 21:30:43 -0400 Received: from lgeamrelo11.lge.com (lgeamrelo11.lge.com [156.147.23.51]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id D534A2347DD for ; Wed, 8 Jun 2022 18:30:38 -0700 (PDT) Received: from unknown (HELO lgemrelse7q.lge.com) (156.147.1.151) by 156.147.23.51 with ESMTP; 9 Jun 2022 10:30:36 +0900 X-Original-SENDERIP: 156.147.1.151 X-Original-MAILFROM: byungchul.park@lge.com Received: from unknown (HELO localhost.localdomain) (10.177.244.38) by 156.147.1.151 with ESMTP; 9 Jun 2022 10:30:36 +0900 X-Original-SENDERIP: 10.177.244.38 X-Original-MAILFROM: byungchul.park@lge.com From: Byungchul Park To: peterz@infradead.org, jpoimboe@redhat.com, bp@suse.de Cc: linux-kernel@vger.kernel.org, kernel-team@lge.com Subject: [REPORT] RESERVE_BRK() doesn't work for some cases Date: Thu, 9 Jun 2022 10:30:51 +0900 Message-Id: <1654738251-23522-1-git-send-email-byungchul.park@lge.com> X-Mailer: git-send-email 1.9.1 X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE 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 commit a1e2c031ec3 "x86/mm: Simplify RESERVE_BRK()" changed the behavior by compiler and assembler. Some strings obtained just by __stringify() cannot be interpreted by some assemblers. It might need to allow to put input for size within inline asm. Byungchul