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 D9972C3F68F for ; Wed, 4 Dec 2019 18:17:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A7495205ED for ; Wed, 4 Dec 2019 18:17:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575483460; bh=c92/BLyGFwnUnlC9RHs4LORE2AeBCegKXnWlVU3xO4I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=swp+0CLqDSveinOFsEFqEC+ij0bl5pmewJOiHfr1BdyuwDvQy1eXDeQlWOD1YcxKg ZJdAwpd7Zbmum+iW4Mu8bkHvdrcFTtC+cL58dyrF614FpO/cf3fYfIzWnXcn8zG78Z Ff+hlHZlQDl6HSj5zknEBbRtCD4LG2HllKzuo3RE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731480AbfLDSLh (ORCPT ); Wed, 4 Dec 2019 13:11:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:39826 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730942AbfLDSLe (ORCPT ); Wed, 4 Dec 2019 13:11:34 -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 987C720674; Wed, 4 Dec 2019 18:11:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575483094; bh=c92/BLyGFwnUnlC9RHs4LORE2AeBCegKXnWlVU3xO4I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jIFR1ZLWRrWB2+PuKXzpKeE62E5xvGI3UPAGCh8RZ9UuYlUZPaWKQNj911rVZ3tXk ov9S1wMUEzWpGBkEbJgxgI5rN8yJn1T6Wtipt/nMPkWdGLcTe/CgKbIluyqSsn5+gt oq3o3n9Lqb3iBbR69S5r4S2SCFrkqqUO//Zxs80s= 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 4.9 050/125] powerpc/book3s/32: fix number of bats in p/v_block_mapped() Date: Wed, 4 Dec 2019 18:55:55 +0100 Message-Id: <20191204175322.048057205@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191204175308.377746305@linuxfoundation.org> References: <20191204175308.377746305@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 2a049fb8523d5..96c52271e9c2d 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_block_mapped(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_block_mapped(unsigned long va) unsigned long p_block_mapped(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