Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262841AbVDASvc (ORCPT ); Fri, 1 Apr 2005 13:51:32 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262849AbVDAS0f (ORCPT ); Fri, 1 Apr 2005 13:26:35 -0500 Received: from webmail.topspin.com ([12.162.17.3]:34971 "EHLO exch-1.topspincom.com") by vger.kernel.org with ESMTP id S262841AbVDASYy (ORCPT ); Fri, 1 Apr 2005 13:24:54 -0500 Cc: linux-kernel@vger.kernel.org, openib-general@openib.org Subject: [PATCH][1/6] IB: Keep MAD work completion valid In-Reply-To: X-Mailer: Roland's Patchbomber Date: Fri, 1 Apr 2005 10:23:50 -0800 Message-Id: <2005411023.BIKgS4OLfFzZN9qI@topspin.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII To: akpm@osdl.org Content-Transfer-Encoding: 7BIT From: Roland Dreier X-OriginalArrivalTime: 01 Apr 2005 18:23:51.0097 (UTC) FILETIME=[F41F6290:01C536E7] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1553 Lines: 39 From: Sean Hefty Replace the *wc field in ib_mad_recv_wc from pointing to a structure on the stack to one allocated with the received MAD buffer. This allows a client to access the *wc field after their receive completion handler has returned. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- linux-export.orig/drivers/infiniband/core/mad.c 2005-03-31 19:07:01.000000000 -0800 +++ linux-export/drivers/infiniband/core/mad.c 2005-04-01 10:08:54.939957801 -0800 @@ -1600,7 +1600,8 @@ DMA_FROM_DEVICE); /* Setup MAD receive work completion from "normal" work completion */ - recv->header.recv_wc.wc = wc; + recv->header.wc = *wc; + recv->header.recv_wc.wc = &recv->header.wc; recv->header.recv_wc.mad_len = sizeof(struct ib_mad); recv->header.recv_wc.recv_buf.mad = &recv->mad.mad; recv->header.recv_wc.recv_buf.grh = &recv->grh; --- linux-export.orig/drivers/infiniband/core/mad_priv.h 2005-03-31 19:07:14.000000000 -0800 +++ linux-export/drivers/infiniband/core/mad_priv.h 2005-04-01 10:08:54.961953027 -0800 @@ -69,6 +69,7 @@ struct ib_mad_private_header { struct ib_mad_list_head mad_list; struct ib_mad_recv_wc recv_wc; + struct ib_wc wc; DECLARE_PCI_UNMAP_ADDR(mapping) } __attribute__ ((packed)); - 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/