From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262275AbVDLQfE (ORCPT ); Tue, 12 Apr 2005 12:35:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262266AbVDLKkU (ORCPT ); Tue, 12 Apr 2005 06:40:20 -0400 Received: from fire.osdl.org ([65.172.181.4]:42442 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S262274AbVDLKd2 (ORCPT ); Tue, 12 Apr 2005 06:33:28 -0400 Message-Id: <200504121033.j3CAXGVT005834@shell0.pdx.osdl.net> Subject: [patch 167/198] IB/mthca: allow unaligned memory regions To: torvalds@osdl.org Cc: linux-kernel@vger.kernel.org, akpm@osdl.org, mst@mellanox.co.il, roland@topspin.com From: akpm@osdl.org Date: Tue, 12 Apr 2005 03:33:09 -0700 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: Michael S. Tsirkin The first buffer of a memory region is not required to be page-aligned, so don't return an error if it's not. Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier Signed-off-by: Andrew Morton --- 25-akpm/drivers/infiniband/hw/mthca/mthca_provider.c | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) diff -puN drivers/infiniband/hw/mthca/mthca_provider.c~ib-mthca-allow-unaligned-memory-regions drivers/infiniband/hw/mthca/mthca_provider.c --- 25/drivers/infiniband/hw/mthca/mthca_provider.c~ib-mthca-allow-unaligned-memory-regions 2005-04-12 03:21:43.262559992 -0700 +++ 25-akpm/drivers/infiniband/hw/mthca/mthca_provider.c 2005-04-12 03:21:43.265559536 -0700 @@ -494,7 +494,7 @@ static struct ib_mr *mthca_reg_phys_mr(s mask = 0; total_size = 0; for (i = 0; i < num_phys_buf; ++i) { - if (buffer_list[i].addr & ~PAGE_MASK) + if (i != 0 && buffer_list[i].addr & ~PAGE_MASK) return ERR_PTR(-EINVAL); if (i != 0 && i != num_phys_buf - 1 && (buffer_list[i].size & ~PAGE_MASK)) _