From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757532AbZJPRYS (ORCPT ); Fri, 16 Oct 2009 13:24:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932609AbZJPRYJ (ORCPT ); Fri, 16 Oct 2009 13:24:09 -0400 Received: from kroah.org ([198.145.64.141]:48578 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754417AbZJPRSe (ORCPT ); Fri, 16 Oct 2009 13:18:34 -0400 X-Mailbox-Line: From linux@linux.site Fri Oct 16 10:12:01 2009 Message-Id: <20091016171201.376625219@linux.site> User-Agent: quilt/0.47-14.9 Date: Fri, 16 Oct 2009 10:10:21 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org, Greg KH Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, serue@us.ibm.com, Philipp Reisner , Lars Ellenberg , Evgeniy Polyakov , "David S. Miller" , Greg Kroah-Hartman Subject: [28/46] connector: Keep the skb in cn_callback_data References: <20091016170953.128828149@linux.site> Content-Disposition: inline; filename=connector-keep-the-skb-in-cn_callback_data.patch In-Reply-To: <20091016171422.GA13339@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.31-stable review patch. If anyone has any objections, please let us know. ------------------ From: Philipp Reisner (cherry picked from commit 5491c43845dae6c68cb4edbcf2e2dde9a32a863d) Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg Acked-by: Evgeniy Polyakov Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/connector/cn_queue.c | 3 ++- drivers/connector/connector.c | 11 +++++------ include/linux/connector.h | 6 +++--- 3 files changed, 10 insertions(+), 10 deletions(-) --- a/drivers/connector/cn_queue.c +++ b/drivers/connector/cn_queue.c @@ -78,8 +78,9 @@ void cn_queue_wrapper(struct work_struct struct cn_callback_entry *cbq = container_of(work, struct cn_callback_entry, work); struct cn_callback_data *d = &cbq->data; + struct cn_msg *msg = NLMSG_DATA(nlmsg_hdr(d->skb)); - d->callback(d->callback_priv); + d->callback(msg); d->destruct_data(d->ddata); d->ddata = NULL; --- a/drivers/connector/connector.c +++ b/drivers/connector/connector.c @@ -129,10 +129,11 @@ EXPORT_SYMBOL_GPL(cn_netlink_send); /* * Callback helper - queues work and setup destructor for given data. */ -static int cn_call_callback(struct cn_msg *msg, void (*destruct_data)(void *), void *data) +static int cn_call_callback(struct sk_buff *skb, void (*destruct_data)(void *), void *data) { struct cn_callback_entry *__cbq, *__new_cbq; struct cn_dev *dev = &cdev; + struct cn_msg *msg = NLMSG_DATA(nlmsg_hdr(skb)); int err = -ENODEV; spin_lock_bh(&dev->cbdev->queue_lock); @@ -140,7 +141,7 @@ static int cn_call_callback(struct cn_ms if (cn_cb_equal(&__cbq->id.id, &msg->id)) { if (likely(!work_pending(&__cbq->work) && __cbq->data.ddata == NULL)) { - __cbq->data.callback_priv = msg; + __cbq->data.skb = skb; __cbq->data.ddata = data; __cbq->data.destruct_data = destruct_data; @@ -156,7 +157,7 @@ static int cn_call_callback(struct cn_ms __new_cbq = kzalloc(sizeof(struct cn_callback_entry), GFP_ATOMIC); if (__new_cbq) { d = &__new_cbq->data; - d->callback_priv = msg; + d->skb = skb; d->callback = __cbq->data.callback; d->ddata = data; d->destruct_data = destruct_data; @@ -191,7 +192,6 @@ static int cn_call_callback(struct cn_ms */ static void cn_rx_skb(struct sk_buff *__skb) { - struct cn_msg *msg; struct nlmsghdr *nlh; int err; struct sk_buff *skb; @@ -208,8 +208,7 @@ static void cn_rx_skb(struct sk_buff *__ return; } - msg = NLMSG_DATA(nlh); - err = cn_call_callback(msg, (void (*)(void *))kfree_skb, skb); + err = cn_call_callback(skb, (void (*)(void *))kfree_skb, skb); if (err < 0) kfree_skb(skb); } --- a/include/linux/connector.h +++ b/include/linux/connector.h @@ -134,9 +134,9 @@ struct cn_callback_id { struct cn_callback_data { void (*destruct_data) (void *); void *ddata; - - void *callback_priv; - void (*callback) (void *); + + struct sk_buff *skb; + void (*callback) (struct cn_msg *); void *free; };