From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2on0134.outbound.protection.outlook.com [65.55.169.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 7BA0B1A05E0 for ; Tue, 27 Jan 2015 06:27:51 +1100 (AEDT) Date: Mon, 26 Jan 2015 13:22:22 -0600 From: Kim Phillips To: Michael Ellerman Subject: [PATCH v3] powerpc/mm: fix undefined reference to `.__kernel_map_pages' on FSL PPC64 Message-ID: <20150126132222.6477257be204a3332601ef11@freescale.com> In-Reply-To: <1421987091.24984.13.camel@ellerman.id.au> References: <20150120140200.aa7ba0eb28d95e456972e178@freescale.com> <20150120230150.GA14475@cloud> <20150120160738.edfe64806cc8b943beb1dfa0@linux-foundation.org> <20150122014550.GA21444@js1304-P5Q-DELUXE> <20150122144147.019eedc41f189eac44c3c4cd@freescale.com> <20150122212017.4b7032d52a6c75c06d5b4728@freescale.com> <1421987091.24984.13.camel@ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Cc: Konstantin Khlebnikov , Rik van Riel , josh@joshtriplett.org, Minchan Kim , LKML , Akinobu Mita , Jens Axboe , linux-mm@kvack.org, Paul Mackerras , Al Viro , Johannes Weiner , Scott Wood , Sasha Levin , Joonsoo Kim , linuxppc-dev , Andrew Morton List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , arch/powerpc has __kernel_map_pages implementations in mm/pgtable_32.c, and mm/hash_utils_64.c, of which the former is built for PPC32, and the latter for PPC64 machines with PPC_STD_MMU. Fix arch/powerpc/Kconfig to not select ARCH_SUPPORTS_DEBUG_PAGEALLOC when CONFIG_PPC_STD_MMU_64 isn't defined, i.e., for 64-bit book3e builds to use the generic __kernel_map_pages() in mm/debug-pagealloc.c. LD init/built-in.o mm/built-in.o: In function `kernel_map_pages': include/linux/mm.h:2076: undefined reference to `.__kernel_map_pages' include/linux/mm.h:2076: undefined reference to `.__kernel_map_pages' include/linux/mm.h:2076: undefined reference to `.__kernel_map_pages' Makefile:925: recipe for target 'vmlinux' failed make: *** [vmlinux] Error 1 Signed-off-by: Kim Phillips --- v3: - fix wording for hash_utils_64.c implementation pointed out by Michael Ellerman - changed designation from 'mm:' to 'powerpc/mm:', as I think this now belongs in ppc-land v2: - corrected SUPPORTS_DEBUG_PAGEALLOC selection to enable non-STD_MMU_64 builds to use the generic __kernel_map_pages(). depends on: From: Joonsoo Kim Date: Thu, 22 Jan 2015 10:28:58 +0900 Subject: [PATCH] mm/debug_pagealloc: fix build failure on ppc and some other archs arch/powerpc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index a2a168e..22b0940 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -256,6 +256,7 @@ config PPC_OF_PLATFORM_PCI default n config ARCH_SUPPORTS_DEBUG_PAGEALLOC + depends on PPC32 || PPC_STD_MMU_64 def_bool y config ARCH_SUPPORTS_UPROBES -- 2.2.2