Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751492AbbGMJw4 (ORCPT ); Mon, 13 Jul 2015 05:52:56 -0400 Received: from andre.telenet-ops.be ([195.130.132.53]:42849 "EHLO andre.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751031AbbGMJwz (ORCPT ); Mon, 13 Jul 2015 05:52:55 -0400 From: Geert Uytterhoeven To: Matthew Wilcox Cc: Andrew Morton , Paul Bolle , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Arnd Bergmann , Geert Uytterhoeven Subject: [PATCH] fs: dax: do not build on ARC or SH Date: Mon, 13 Jul 2015 11:52:47 +0200 Message-Id: <1436781167-14446-1-git-send-email-geert+renesas@glider.be> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1592 Lines: 42 From: Arnd Bergmann The DAX implementation relies on the architecture to provide a working copy_user_page() function, as reported by Michael Ellerman's kisskb build bot: fs/dax.c: error: implicit declaration of function 'copy_user_page' [-Werror=implicit-function-declaration]: => 266:2 We already have a list of architectures that are known to be incompatible, but the list is missing ARC and SH at the moment. Further, blackfin and c6x also lack support for this function, but are already excluded because they do not support MMU-based kernels. Signed-off-by: Arnd Bergmann Reported-by: Geert Uytterhoeven [Geert: s/SH/SUPERH/, as reported by Paul Bolle ] Signed-off-by: Geert Uytterhoeven --- fs/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/Kconfig b/fs/Kconfig index 011f43365d7b1e53..53326a50a3ce3830 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -37,7 +37,7 @@ source "fs/f2fs/Kconfig" config FS_DAX bool "Direct Access (DAX) support" depends on MMU - depends on !(ARM || MIPS || SPARC) + depends on !(ARC || ARM || MIPS || SPARC || SUPERH) help Direct Access (DAX) can be used on memory-backed block devices. If the block device supports DAX and the filesystem supports DAX, -- 1.9.1 -- 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/