From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757244AbcAYOXP (ORCPT ); Mon, 25 Jan 2016 09:23:15 -0500 Received: from mail-yk0-f173.google.com ([209.85.160.173]:35212 "EHLO mail-yk0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756638AbcAYOXN (ORCPT ); Mon, 25 Jan 2016 09:23:13 -0500 From: Pranith Kumar To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , linuxppc-dev@lists.ozlabs.org (open list:LINUX FOR POWERPC (32-BIT AND 64-BIT)), linux-kernel@vger.kernel.org (open list) Subject: [RFC PATCH] PPC32: Fix build failure caused by missing dirty pte handlers Date: Mon, 25 Jan 2016 09:22:58 -0500 Message-Id: <1453731778-18464-1-git-send-email-bobby.prani@gmail.com> X-Mailer: git-send-email 2.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In 4.5-rc1, I am getting a build failure as follows: mm/memory.c: In function ‘do_swap_page’: mm/memory.c:2573:9: error: implicit declaration of function ‘pte_mksoft_dirty’ [-Werror=implicit-function-declaration] pte = pte_mksoft_dirty(pte); The soft dirty pte handlers are declared only for PPC64 on PPC_BOOK3S in arch/powerpc/include/asm/book3s/64/hash.h and missing in the 32-bit arch. Avoid this error by not setting HAVE_ARCH_SOFT_DIRTY for 32-bit system. Signed-off-by: Pranith Kumar --- arch/powerpc/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index e4824fd..21cb5c5 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -557,7 +557,7 @@ choice config PPC_4K_PAGES bool "4k page size" - select HAVE_ARCH_SOFT_DIRTY if CHECKPOINT_RESTORE && PPC_BOOK3S + select HAVE_ARCH_SOFT_DIRTY if CHECKPOINT_RESTORE && PPC_BOOK3S && PPC64 config PPC_16K_PAGES bool "16k page size" @@ -566,7 +566,7 @@ config PPC_16K_PAGES config PPC_64K_PAGES bool "64k page size" depends on !PPC_FSL_BOOK3E && (44x || PPC_STD_MMU_64 || PPC_BOOK3E_64) - select HAVE_ARCH_SOFT_DIRTY if CHECKPOINT_RESTORE && PPC_BOOK3S + select HAVE_ARCH_SOFT_DIRTY if CHECKPOINT_RESTORE && PPC_BOOK3S && PPC64 config PPC_256K_PAGES bool "256k page size" -- 2.7.0