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-rw-r--r--drivers/connector/cn_proc.c18
-rw-r--r--drivers/connector/connector.c20
2 files changed, 22 insertions, 16 deletions
diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c
index 18c5b9b16645..148d707a1d43 100644
--- a/drivers/connector/cn_proc.c
+++ b/drivers/connector/cn_proc.c
@@ -95,7 +95,7 @@ void proc_fork_connector(struct task_struct *task)
msg->len = sizeof(*ev);
msg->flags = 0; /* not used */
/* If cn_netlink_send() failed, the data is not sent */
- cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
+ cn_netlink_send(msg, 0, CN_IDX_PROC, GFP_KERNEL);
}
void proc_exec_connector(struct task_struct *task)
@@ -122,7 +122,7 @@ void proc_exec_connector(struct task_struct *task)
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
msg->flags = 0; /* not used */
- cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
+ cn_netlink_send(msg, 0, CN_IDX_PROC, GFP_KERNEL);
}
void proc_id_connector(struct task_struct *task, int which_id)
@@ -163,7 +163,7 @@ void proc_id_connector(struct task_struct *task, int which_id)
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
msg->flags = 0; /* not used */
- cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
+ cn_netlink_send(msg, 0, CN_IDX_PROC, GFP_KERNEL);
}
void proc_sid_connector(struct task_struct *task)
@@ -190,7 +190,7 @@ void proc_sid_connector(struct task_struct *task)
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
msg->flags = 0; /* not used */
- cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
+ cn_netlink_send(msg, 0, CN_IDX_PROC, GFP_KERNEL);
}
void proc_ptrace_connector(struct task_struct *task, int ptrace_id)
@@ -225,7 +225,7 @@ void proc_ptrace_connector(struct task_struct *task, int ptrace_id)
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
msg->flags = 0; /* not used */
- cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
+ cn_netlink_send(msg, 0, CN_IDX_PROC, GFP_KERNEL);
}
void proc_comm_connector(struct task_struct *task)
@@ -253,7 +253,7 @@ void proc_comm_connector(struct task_struct *task)
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
msg->flags = 0; /* not used */
- cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
+ cn_netlink_send(msg, 0, CN_IDX_PROC, GFP_KERNEL);
}
void proc_coredump_connector(struct task_struct *task)
@@ -280,7 +280,7 @@ void proc_coredump_connector(struct task_struct *task)
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
msg->flags = 0; /* not used */
- cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
+ cn_netlink_send(msg, 0, CN_IDX_PROC, GFP_KERNEL);
}
void proc_exit_connector(struct task_struct *task)
@@ -309,7 +309,7 @@ void proc_exit_connector(struct task_struct *task)
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
msg->flags = 0; /* not used */
- cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
+ cn_netlink_send(msg, 0, CN_IDX_PROC, GFP_KERNEL);
}
/*
@@ -343,7 +343,7 @@ static void cn_proc_ack(int err, int rcvd_seq, int rcvd_ack)
msg->ack = rcvd_ack + 1;
msg->len = sizeof(*ev);
msg->flags = 0; /* not used */
- cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
+ cn_netlink_send(msg, 0, CN_IDX_PROC, GFP_KERNEL);
}
/**
diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index 9b0ea0a6e26e..b14f1d36f897 100644
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -50,7 +50,7 @@ static int cn_already_initialized;
*
* Sequence number is incremented with each message to be sent.
*
- * If we expect reply to our message then the sequence number in
+ * If we expect a reply to our message then the sequence number in
* received message MUST be the same as in original message, and
* acknowledge number MUST be the same + 1.
*
@@ -62,8 +62,11 @@ static int cn_already_initialized;
* the acknowledgement number in the original message + 1, then it is
* a new message.
*
+ * The message is sent to, the portid if given, the group if given, both if
+ * both, or if both are zero then the group is looked up and sent there.
*/
-int cn_netlink_send(struct cn_msg *msg, u32 __group, gfp_t gfp_mask)
+int cn_netlink_send(struct cn_msg *msg, u32 portid, u32 __group,
+ gfp_t gfp_mask)
{
struct cn_callback_entry *__cbq;
unsigned int size;
@@ -74,7 +77,9 @@ int cn_netlink_send(struct cn_msg *msg, u32 __group, gfp_t gfp_mask)
u32 group = 0;
int found = 0;
- if (!__group) {
+ if (portid || __group) {
+ group = __group;
+ } else {
spin_lock_bh(&dev->cbdev->queue_lock);
list_for_each_entry(__cbq, &dev->cbdev->queue_list,
callback_entry) {
@@ -88,11 +93,9 @@ int cn_netlink_send(struct cn_msg *msg, u32 __group, gfp_t gfp_mask)
if (!found)
return -ENODEV;
- } else {
- group = __group;
}
- if (!netlink_has_listeners(dev->nls, group))
+ if (!portid && !netlink_has_listeners(dev->nls, group))
return -ESRCH;
size = sizeof(*msg) + msg->len;
@@ -113,7 +116,10 @@ int cn_netlink_send(struct cn_msg *msg, u32 __group, gfp_t gfp_mask)
NETLINK_CB(skb).dst_group = group;
- return netlink_broadcast(dev->nls, skb, 0, group, gfp_mask);
+ if (group)
+ return netlink_broadcast(dev->nls, skb, portid, group,
+ gfp_mask);
+ return netlink_unicast(dev->nls, skb, portid, !(gfp_mask&__GFP_WAIT));
}
EXPORT_SYMBOL_GPL(cn_netlink_send);

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