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=-5.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 BAE2AC31E40 for ; Tue, 6 Aug 2019 22:36:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 81F96218A6 for ; Tue, 6 Aug 2019 22:36:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="HmxtQdZz" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727022AbfHFWgv (ORCPT ); Tue, 6 Aug 2019 18:36:51 -0400 Received: from merlin.infradead.org ([205.233.59.134]:37516 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726461AbfHFWgu (ORCPT ); Tue, 6 Aug 2019 18:36:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Content-Transfer-Encoding:Content-Type: MIME-Version:Date:Message-ID:Subject:From:Cc:To:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=+aGylB31P6D/nIlNaEFR+0PCAreRmaph6pqKhavESjE=; b=HmxtQdZzEnq8nfYZq+zrSYqD+4 dXytf63V8sjZZwA8ZIPZ582xJDZOJJWLB2S+CRkv9S0GguOgPyv/lxjB+qN90XYTSyYY1pnWL38ex 189P+LVbpB7kNPdBdca9RcV7R32mXtXoF8OiUHoK8Y/XYkSLYMjxfFq6TjJmI+oR+lh6A9uN/5+7o 4IPS54k0zpPy0X9MgX5q8uF9yzXe0ncmOkGQ73WWucyEIoNDyxt14DLM+/P5Z2L2+rATRrHEtLSu5 SXDR8+t6DVoK05HunEDq4LnAjYpaRkDe/iGqxsTWVgKW5Hn58R2VhuwnFXfCTjsA/ccjfOj56W7NI qK4exTkA==; Received: from [208.71.200.96] (helo=[172.16.195.104]) by merlin.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1hv84N-0008BO-Nr; Tue, 06 Aug 2019 22:36:39 +0000 To: LKML , Andrew Morton , Al Viro Cc: "Steven J. Magnani" , Michal Simek , Jason Gunthorpe , Leon Romanovsky From: Randy Dunlap Subject: [PATCH] arch/microblaze: add support for get_user() of size 8 bytes Message-ID: Date: Tue, 6 Aug 2019 15:36:37 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Randy Dunlap arch/microblaze/ is missing support for get_user() of size 8 bytes, so add it by using __copy_from_user(). Fixes these build errors: drivers/infiniband/core/uverbs_main.o: In function `ib_uverbs_write': drivers/infiniband/core/.tmp_gl_uverbs_main.o:(.text+0x13a4): undefined reference to `__user_bad' drivers/android/binder.o: In function `binder_thread_write': drivers/android/.tmp_gl_binder.o:(.text+0xda6c): undefined reference to `__user_bad' drivers/android/.tmp_gl_binder.o:(.text+0xda98): undefined reference to `__user_bad' drivers/android/.tmp_gl_binder.o:(.text+0xdf10): undefined reference to `__user_bad' drivers/android/.tmp_gl_binder.o:(.text+0xe498): undefined reference to `__user_bad' drivers/android/binder.o:drivers/android/.tmp_gl_binder.o:(.text+0xea78): more undefined references to `__user_bad' follow 'make allmodconfig' now builds successfully for arch/microblaze/. Fixes: 538722ca3b76 ("microblaze: fix get_user/put_user side-effects") Reported-by: kbuild test robot Signed-off-by: Randy Dunlap Cc: Al Viro Cc: Steven J. Magnani Cc: Michal Simek Cc: Jason Gunthorpe Cc: Leon Romanovsky Cc: Andrew Morton --- arch/microblaze/include/asm/uaccess.h | 6 ++++++ 1 file changed, 6 insertions(+) --- lnx-53-rc3.orig/arch/microblaze/include/asm/uaccess.h +++ lnx-53-rc3/arch/microblaze/include/asm/uaccess.h @@ -186,6 +186,9 @@ extern long __user_bad(void); __get_user_asm("lw", __gu_addr, __gu_val, \ __gu_err); \ break; \ + case 8: \ + __gu_err = __copy_from_user(&__gu_val, __gu_addr, 8);\ + break; \ default: \ __gu_err = __user_bad(); \ break; \ @@ -212,6 +215,9 @@ extern long __user_bad(void); case 4: \ __get_user_asm("lw", (ptr), __gu_val, __gu_err); \ break; \ + case 8: \ + __gu_err = __copy_from_user(&__gu_val, ptr, 8); \ + break; \ default: \ /* __gu_val = 0; __gu_err = -EINVAL;*/ __gu_err = __user_bad();\ } \