From patchwork Tue Jul 28 05:11:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 11688163 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A015B14B7 for ; Tue, 28 Jul 2020 05:12:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 87CDB22B43 for ; Tue, 28 Jul 2020 05:12:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595913176; bh=qkTb6G6sC5adsTqHQyd7bT8V4WYx2oAV2sECBmwt5OQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=mSbgzr4XzxB+YdCtONBdzXxXmoPFzn3AxgIvWdih4ZtNKnoMmGoSPkB4r71Edhkg9 v2UbdJZmijUCielXuOrkmFIPmiuYJkK8oJWqKjdH9X1RUBGOXb1o4zWWpJIqnCEFPv WUXsAIMDk7qtW1inY8k+B3r7M+DIOpu7wRSlLARI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726980AbgG1FMy (ORCPT ); Tue, 28 Jul 2020 01:12:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:34784 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726308AbgG1FMy (ORCPT ); Tue, 28 Jul 2020 01:12:54 -0400 Received: from aquarius.haifa.ibm.com (nesher1.haifa.il.ibm.com [195.110.40.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 13A8121883; Tue, 28 Jul 2020 05:12:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595913173; bh=qkTb6G6sC5adsTqHQyd7bT8V4WYx2oAV2sECBmwt5OQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wt1p0YyBgor/93NHcOqjOUm3At5dqz/sRzw9h9n6XfVzCHEaX1bZW3fuapQfmdf2z sQz2uepSCtKxhcfipNySyfhMav8LB88xjE8OgOcqYfeQ3ZAJhYWReV0msWpup2pk2/ j6tZq2lZvVV2OFcdC/B0nOlrCcmOC888LNy9rcDk= From: Mike Rapoport To: Andrew Morton Cc: Andy Lutomirski , Benjamin Herrenschmidt , Borislav Petkov , Catalin Marinas , Christoph Hellwig , Dave Hansen , Ingo Molnar , Marek Szyprowski , Max Filippov , Michael Ellerman , Michal Simek , Mike Rapoport , Mike Rapoport , Palmer Dabbelt , Paul Mackerras , Paul Walmsley , Peter Zijlstra , Russell King , Stafford Horne , Thomas Gleixner , Will Deacon , Yoshinori Sato , clang-built-linux@googlegroups.com, iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linuxppc-dev@lists.ozlabs.org, openrisc@lists.librecores.org, sparclinux@vger.kernel.org, uclinux-h8-devel@lists.sourceforge.jp, x86@kernel.org Subject: [PATCH 04/15] arm64: numa: simplify dummy_numa_init() Date: Tue, 28 Jul 2020 08:11:42 +0300 Message-Id: <20200728051153.1590-5-rppt@kernel.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200728051153.1590-1-rppt@kernel.org> References: <20200728051153.1590-1-rppt@kernel.org> MIME-Version: 1.0 Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org From: Mike Rapoport dummy_numa_init() loops over memblock.memory and passes nid=0 to numa_add_memblk() which essentially wraps memblock_set_node(). However, memblock_set_node() can cope with entire memory span itself, so the loop over memblock.memory regions is redundant. Replace the loop with a single call to memblock_set_node() to the entire memory. Signed-off-by: Mike Rapoport Acked-by: Jonathan Cameron Acked-by: Catalin Marinas --- arch/arm64/mm/numa.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c index aafcee3e3f7e..0cbdbcc885fb 100644 --- a/arch/arm64/mm/numa.c +++ b/arch/arm64/mm/numa.c @@ -423,19 +423,16 @@ static int __init numa_init(int (*init_func)(void)) */ static int __init dummy_numa_init(void) { + phys_addr_t start = memblock_start_of_DRAM(); + phys_addr_t end = memblock_end_of_DRAM(); int ret; - struct memblock_region *mblk; if (numa_off) pr_info("NUMA disabled\n"); /* Forced off on command line. */ - pr_info("Faking a node at [mem %#018Lx-%#018Lx]\n", - memblock_start_of_DRAM(), memblock_end_of_DRAM() - 1); - - for_each_memblock(memory, mblk) { - ret = numa_add_memblk(0, mblk->base, mblk->base + mblk->size); - if (!ret) - continue; + pr_info("Faking a node at [mem %#018Lx-%#018Lx]\n", start, end - 1); + ret = numa_add_memblk(0, start, end); + if (ret) { pr_err("NUMA init failed\n"); return ret; }