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=-8.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 17804C48BD9 for ; Wed, 26 Jun 2019 13:21:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EF433214DA for ; Wed, 26 Jun 2019 13:21:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727428AbfFZNVc (ORCPT ); Wed, 26 Jun 2019 09:21:32 -0400 Received: from foss.arm.com ([217.140.110.172]:32828 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726628AbfFZNVc (ORCPT ); Wed, 26 Jun 2019 09:21:32 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 1D595360; Wed, 26 Jun 2019 06:21:31 -0700 (PDT) Received: from p8cg001049571a15.blr.arm.com (p8cg001049571a15.blr.arm.com [10.162.40.140]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 4550F3F71E; Wed, 26 Jun 2019 06:21:25 -0700 (PDT) From: Anshuman Khandual To: linux-mm@kvack.org Cc: Anshuman Khandual , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , "Aneesh Kumar K.V" , Nicholas Piggin , Andrew Morton , Stephen Rothwell , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-next@vger.kernel.org Subject: [PATCH] powerpc/64s/radix: Define arch_ioremap_p4d_supported() Date: Wed, 26 Jun 2019 18:51:00 +0530 Message-Id: <1561555260-17335-1-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Recent core ioremap changes require HAVE_ARCH_HUGE_VMAP subscribing archs provide arch_ioremap_p4d_supported() failing which will result in a build failure like the following. ld: lib/ioremap.o: in function `.ioremap_huge_init': ioremap.c:(.init.text+0x3c): undefined reference to `.arch_ioremap_p4d_supported' This defines a stub implementation for arch_ioremap_p4d_supported() keeping it disabled for now to fix the build problem. Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: "Aneesh Kumar K.V" Cc: Nicholas Piggin Cc: Andrew Morton Cc: Stephen Rothwell Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org Cc: linux-next@vger.kernel.org Signed-off-by: Anshuman Khandual --- This has been just build tested and fixes the problem reported earlier. arch/powerpc/mm/book3s64/radix_pgtable.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c index 8904aa1..c81da88 100644 --- a/arch/powerpc/mm/book3s64/radix_pgtable.c +++ b/arch/powerpc/mm/book3s64/radix_pgtable.c @@ -1124,6 +1124,11 @@ void radix__ptep_modify_prot_commit(struct vm_area_struct *vma, set_pte_at(mm, addr, ptep, pte); } +int __init arch_ioremap_p4d_supported(void) +{ + return 0; +} + int __init arch_ioremap_pud_supported(void) { /* HPT does not cope with large pages in the vmalloc area */ -- 2.7.4