From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933178Ab3EFW71 (ORCPT ); Mon, 6 May 2013 18:59:27 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:36492 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759168Ab3EFW7Z (ORCPT ); Mon, 6 May 2013 18:59:25 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Linus Torvalds , Martin Schwidefsky , Heiko Carstens , Jiri Slaby Subject: [ 45/46] s390: move dummy io_remap_pfn_range() to asm/pgtable.h Date: Mon, 6 May 2013 15:58:51 -0700 Message-Id: <20130506225825.429475910@linuxfoundation.org> X-Mailer: git-send-email 1.8.3.rc0.20.gb99dd2e In-Reply-To: <20130506225820.628893970@linuxfoundation.org> References: <20130506225820.628893970@linuxfoundation.org> User-Agent: quilt/0.60-5.1.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Linus Torvalds commit 4f2e29031e6c67802e7370292dd050fd62f337ee upstream. Commit b4cbb197c7e7 ("vm: add vm_iomap_memory() helper function") added a helper function wrapper around io_remap_pfn_range(), and every other architecture defined it in . The s390 choice of may make sense, but is not very convenient for this case, and gratuitous differences like that cause unexpected errors like this: mm/memory.c: In function 'vm_iomap_memory': mm/memory.c:2439:2: error: implicit declaration of function 'io_remap_pfn_range' [-Werror=implicit-function-declaration] Glory be the kbuild test robot who noticed this, bisected it, and reported it to the guilty parties (ie me). Signed-off-by: Linus Torvalds Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Jiri Slaby Signed-off-by: Greg Kroah-Hartman --- arch/s390/include/asm/pgtable.h | 4 ++++ 1 file changed, 4 insertions(+) --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -67,6 +67,10 @@ static inline int is_zero_pfn(unsigned l #define my_zero_pfn(addr) page_to_pfn(ZERO_PAGE(addr)) +/* TODO: s390 cannot support io_remap_pfn_range... */ +#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ + remap_pfn_range(vma, vaddr, pfn, size, prot) + #endif /* !__ASSEMBLY__ */ /*