From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751820AbdC2COW (ORCPT ); Tue, 28 Mar 2017 22:14:22 -0400 Received: from mail-qt0-f194.google.com ([209.85.216.194]:34037 "EHLO mail-qt0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751407AbdC2COV (ORCPT ); Tue, 28 Mar 2017 22:14:21 -0400 From: Marcos Paulo de Souza To: gregkh@linuxfoundation.org Cc: Marcos Paulo de Souza , Oleg Drokin , Andreas Dilger , James Simmons , Doug Oucharek , Al Viro , lustre-devel@lists.lustre.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org Subject: [PATCH] staging: lusten: conrpc.c: fix different address space sparse warning Date: Tue, 28 Mar 2017 23:14:06 -0300 Message-Id: <20170329021409.24537-1-marcos.souza.org@gmail.com> X-Mailer: git-send-email 2.9.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org head_up parameter is marked with __user attribute, tmp is filled by a copy_from_user from next, that is also marked as __user, so tmp.next needs to be "casted" as __user to make sparse happy. Signed-off-by: Marcos Paulo de Souza --- this is mt first patch addressing an issue of sparse, so let me know if I misunderstood the error message drivers/staging/lustre/lnet/selftest/conrpc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index c6a683b..fb7ad74 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -487,7 +487,7 @@ lstcon_rpc_trans_interpreter(struct lstcon_rpc_trans *trans, sizeof(struct list_head))) return -EFAULT; - if (tmp.next == head_up) + if ((struct list_head __user *)tmp.next == head_up) return 0; next = tmp.next; -- 2.9.3