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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 8F23FC43603 for ; Wed, 4 Dec 2019 17:58:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 66C3020865 for ; Wed, 4 Dec 2019 17:58:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575482323; bh=sShHE3n8YsD5IgFRZKyWm5uJF1u9IVVzTomfAgpuE2g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=UXaxjC8V5Wb8qMgXbGTQWNa9qqC+g2NDPBxUCgSzTTv4ctz6zsHVxlIValh3ZWWkX FsCFE/45WOGZqwVxF6GdxVKb8Lt0X4isXaV0QAkQiXSBbH2rwBJe6kU6BYtaRix/jJ v+kXoQEcTfQQKssuTlDe/xPAGmSIvKSGEGBJNfbk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728889AbfLDR6m (ORCPT ); Wed, 4 Dec 2019 12:58:42 -0500 Received: from mail.kernel.org ([198.145.29.99]:33628 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728869AbfLDR6k (ORCPT ); Wed, 4 Dec 2019 12:58:40 -0500 Received: from localhost (unknown [217.68.49.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0462920863; Wed, 4 Dec 2019 17:58:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575482319; bh=sShHE3n8YsD5IgFRZKyWm5uJF1u9IVVzTomfAgpuE2g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GQ0d3clwOvG+ABx2Z/K7lRRDHZpPjApBRi4pMP3I337+6ivJXq9IwJxy4pM377llE 96jQqYrnGJsr14QhitBgPBI6V4JvKao+CtIbCJDH4owH5ENDqrNe7qtdlqxm4j5JxT YbC5xKTuCI4lJrnDYR9nb3TbAvP9jOKezzW3kVGA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christophe Leroy , Michael Ellerman , Sasha Levin Subject: [PATCH 4.4 38/92] powerpc/book3s/32: fix number of bats in p/v_block_mapped() Date: Wed, 4 Dec 2019 18:49:38 +0100 Message-Id: <20191204174332.851635589@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191204174327.215426506@linuxfoundation.org> References: <20191204174327.215426506@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Christophe Leroy [ Upstream commit e93ba1b7eb5b188c749052df7af1c90821c5f320 ] This patch fixes the loop in p_block_mapped() and v_block_mapped() to scan the entire bat_addrs[] array. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin --- arch/powerpc/mm/ppc_mmu_32.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/mm/ppc_mmu_32.c b/arch/powerpc/mm/ppc_mmu_32.c index 6b2f3e457171a..ae0f157d201c6 100644 --- a/arch/powerpc/mm/ppc_mmu_32.c +++ b/arch/powerpc/mm/ppc_mmu_32.c @@ -52,7 +52,7 @@ struct batrange { /* stores address ranges mapped by BATs */ phys_addr_t v_mapped_by_bats(unsigned long va) { int b; - for (b = 0; b < 4; ++b) + for (b = 0; b < ARRAY_SIZE(bat_addrs); ++b) if (va >= bat_addrs[b].start && va < bat_addrs[b].limit) return bat_addrs[b].phys + (va - bat_addrs[b].start); return 0; @@ -64,7 +64,7 @@ phys_addr_t v_mapped_by_bats(unsigned long va) unsigned long p_mapped_by_bats(phys_addr_t pa) { int b; - for (b = 0; b < 4; ++b) + for (b = 0; b < ARRAY_SIZE(bat_addrs); ++b) if (pa >= bat_addrs[b].phys && pa < (bat_addrs[b].limit-bat_addrs[b].start) +bat_addrs[b].phys) -- 2.20.1