From patchwork Tue May 29 13:36:28 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoming Ni X-Patchwork-Id: 10435565 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 51F41602BF for ; Tue, 29 May 2018 14:07:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 30BF4287A1 for ; Tue, 29 May 2018 14:07:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2C20A287E3; Tue, 29 May 2018 14:07:10 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 537DE28F84 for ; Tue, 29 May 2018 14:02:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=c9KxDQq6C6hobtGvvB4cC0Ucr35byI2qzkLV5TCxWns=; b=sATMlgdFBdCm/1 jxte/rVY5K5VFV7ipWWlShfdDej+x44zvQSTlTmtl5eEOzb3EZ5sUYaWBy+E1acifbZRwkRq/8hHO DmEHCXy+HjIzjXf3+8yTuqv4SADzDa82dNIo/J6Ui8PMpsjIH0vahf2tgBjOGqzh+sXhJkbr9bGcV HPkHPkISRA+bMq+j0HwQdUz48r9BdpEq6y34KU+0RBd2M4QbjcoWpR4d08STpzs5RuJMx9yOP/z9K WIIodH5LN/9zqEqPx72qMrXIWX3pf2GCYdM1hMkXU+7H9rB+mVBo9qi06g6L94VXTRJj9XkxQo6MN N9UhCEeCd/lhLrPUaNKw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fNfCJ-0006CL-Od; Tue, 29 May 2018 14:01:59 +0000 Received: from [45.249.212.32] (helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fNfAh-0004Kv-VG for linux-arm-kernel@lists.infradead.org; Tue, 29 May 2018 14:00:30 +0000 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 2092DB859E5; Tue, 29 May 2018 22:00:02 +0800 (CST) Received: from linux-work.huawei.com (10.67.189.174) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.382.0; Tue, 29 May 2018 21:59:54 +0800 From: nixiaoming To: , , , , , , , , , , , , , , , , , , , Subject: [PATCH 3/3] s390:add missing CONFIG_STRICT_KERNEL_RWX for mark_rodata_ro Date: Tue, 29 May 2018 21:36:28 +0800 Message-ID: <20180529133628.27055-1-nixiaoming@huawei.com> X-Mailer: git-send-email 2.10.1 MIME-Version: 1.0 X-Originating-IP: [10.67.189.174] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180529_070020_192719_023601A4 X-CRM114-Status: UNSURE ( 8.49 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-s390@vger.kernel.org, x86@kernel.org, nixiaoming@huawei.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP mark_rodata_ro is only called by the function mark_readonly when CONFIG_STRICT_KERNEL_RWX=y if CONFIG_STRICT_KERNEL_RWX is not set a compile warning may be triggered: unused function Signed-off-by: nixiaoming --- arch/s390/mm/init.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index 3fa3e53..a96fc3f 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -116,6 +116,7 @@ void __init paging_init(void) free_area_init_nodes(max_zone_pfns); } +#ifdef CONFIG_STRICT_KERNEL_RWX void mark_rodata_ro(void) { unsigned long size = __end_ro_after_init - __start_ro_after_init; @@ -123,6 +124,7 @@ void mark_rodata_ro(void) set_memory_ro((unsigned long)__start_ro_after_init, size >> PAGE_SHIFT); pr_info("Write protected read-only-after-init data: %luk\n", size >> 10); } +#endif void __init mem_init(void) {