From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 22 May 2023 07:23:42 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1q0y1H-009Iqp-N7 for lore@lore.pengutronix.de; Mon, 22 May 2023 07:23:42 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1q0y1F-0001S3-Bw for lore@pengutronix.de; Mon, 22 May 2023 07:23:41 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To: Cc:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=0f/rJ8Hp6traD5/tknrVJi4Qc3+02FKk6K3uhCCh5iQ=; b=wSOSGqYIcVvjR9g7jlcqd7Qpoh fQB2rWFG4o71CDm6QCvmmr5Vq6BMc1IHtSgQ18/R6BpuAtTVEJIUkyVqJTExQ+HYRobz2nRelWGpV 07H+JJDtagbx6XZ1uQWFR2BQsCFQUqy3e5+k0LP2WrSiKqowNdkrZ6vq3vhubM1nL+SZm6cp4omIh HHwmUxQp0cUdkHXIMe27XVj24obg94N7ST4V4rK0cheru6lx2WN1b0KoMu1t/r8ofskwVgmAvoxmV I35f8sV4+ivdITuMyrjD00TDwOQK5FXdB+zdzzp3GY9a9tIm8tBNA69DC6M8VSih1XT4NQrUl6ekb HIjZY/Cw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q0y04-005N9L-0k; Mon, 22 May 2023 05:22:28 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q0y01-005N70-21 for barebox@lists.infradead.org; Mon, 22 May 2023 05:22:26 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1q0y00-000170-F0 for barebox@lists.infradead.org; Mon, 22 May 2023 07:22:24 +0200 Received: from [2a0a:edc0:0:1101:1d::54] (helo=dude05.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1q0xzz-001vuD-P1 for barebox@lists.infradead.org; Mon, 22 May 2023 07:22:23 +0200 Received: from afa by dude05.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1q0xzz-004M1I-1W for barebox@lists.infradead.org; Mon, 22 May 2023 07:22:23 +0200 From: Ahmad Fatoum To: barebox@lists.infradead.org Date: Mon, 22 May 2023 07:22:17 +0200 Message-Id: <20230522052222.1037931-2-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230522052222.1037931-1-a.fatoum@pengutronix.de> References: <20230522052222.1037931-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230521_222225_661020_8AE8E11F X-CRM114-Status: UNSURE ( 7.93 ) X-CRM114-Notice: Please train this message. X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.8 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH master 2/7] include: zero_page: hide possibly NULL pointer variable from optimizer X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) --- include/zero_page.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/zero_page.h b/include/zero_page.h index 26a12246f155..a71c0e0b8733 100644 --- a/include/zero_page.h +++ b/include/zero_page.h @@ -44,6 +44,8 @@ static inline void *zero_page_memcpy(void *dest, const void *src, size_t count) { void *ret; + OPTIMIZER_HIDE_VAR(dest); + zero_page_access(); ret = memcpy(dest, src, count); zero_page_faulting(); -- 2.39.2