Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755364AbaAWTPv (ORCPT ); Thu, 23 Jan 2014 14:15:51 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:35029 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752234AbaAWTGc (ORCPT ); Thu, 23 Jan 2014 14:06:32 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Geert Uytterhoeven , "Michael S. Tsirkin" , Guenter Roeck , David Rientjes , Andrew Morton , Linus Torvalds Subject: [PATCH 3.12 23/27] mm: Make {,set}page_address() static inline if WANT_PAGE_VIRTUAL Date: Thu, 23 Jan 2014 11:07:00 -0800 Message-Id: <20140123190651.092087495@linuxfoundation.org> X-Mailer: git-send-email 1.8.5.1.163.gd7aced9 In-Reply-To: <20140123190648.720195687@linuxfoundation.org> References: <20140123190648.720195687@linuxfoundation.org> User-Agent: quilt/0.61-1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Geert Uytterhoeven commit f92f455f67fef27929e6043499414605b0c94872 upstream. {,set}page_address() are macros if WANT_PAGE_VIRTUAL. If !WANT_PAGE_VIRTUAL, they're plain C functions. If someone calls them with a void *, this pointer is auto-converted to struct page * if !WANT_PAGE_VIRTUAL, but causes a build failure on architectures using WANT_PAGE_VIRTUAL (arc, m68k and sparc64): drivers/md/bcache/bset.c: In function `__btree_sort': drivers/md/bcache/bset.c:1190: warning: dereferencing `void *' pointer drivers/md/bcache/bset.c:1190: error: request for member `virtual' in something not a structure or union Convert them to static inline functions to fix this. There are already plenty of users of struct page members inside , so there's no reason to keep them as macros. Signed-off-by: Geert Uytterhoeven Acked-by: Michael S. Tsirkin Tested-by: Guenter Roeck Tested-by: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- include/linux/mm.h | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -762,11 +762,14 @@ static __always_inline void *lowmem_page #endif #if defined(WANT_PAGE_VIRTUAL) -#define page_address(page) ((page)->virtual) -#define set_page_address(page, address) \ - do { \ - (page)->virtual = (address); \ - } while(0) +static inline void *page_address(const struct page *page) +{ + return page->virtual; +} +static inline void set_page_address(struct page *page, void *address) +{ + page->virtual = address; +} #define page_address_init() do { } while(0) #endif -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/