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Message-ID: <1369942577-39563-9-git-send-email-paul.gortmaker@windriver.com>
Date: Thu, 30 May 2013 15:36:13 -0400
From: Paul Gortmaker <paul.gortmaker@...driver.com>
To: David Miller <davem@...emloft.net>
CC: <netdev@...r.kernel.org>, Jon Maloy <jon.maloy@...csson.com>,
Ying Xue <ying.xue@...driver.com>,
Erik Hugne <erik.hugne@...csson.com>,
Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: [PATCH net-next 08/12] tipc: remove user_port instance from tipc_port structure
From: Ying Xue <ying.xue@...driver.com>
After the native API has been completely removed, the 'user_port'
field in struct tipc_port becomes unused, and can be removed.
As a consequence, the "usrmem" argument in tipc_msg_build() is no
longer needed, and so we remove that one too.
Signed-off-by: Ying Xue <ying.xue@...driver.com>
Signed-off-by: Jon Maloy <jon.maloy@...csson.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
net/tipc/link.c | 18 +++++++-----------
net/tipc/msg.c | 15 +++++----------
net/tipc/msg.h | 4 ++--
net/tipc/port.c | 8 +++-----
net/tipc/port.h | 14 --------------
5 files changed, 17 insertions(+), 42 deletions(-)
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 0a4c3a1..d34429d 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1081,7 +1081,7 @@ again:
* (Must not hold any locks while building message.)
*/
res = tipc_msg_build(hdr, msg_sect, num_sect, total_len,
- sender->max_pkt, !sender->user_port, &buf);
+ sender->max_pkt, &buf);
read_lock_bh(&tipc_net_lock);
node = tipc_node_find(destaddr);
@@ -1216,18 +1216,14 @@ again:
else
sz = fragm_rest;
- if (likely(!sender->user_port)) {
- if (copy_from_user(buf->data + fragm_crs, sect_crs, sz)) {
+ if (copy_from_user(buf->data + fragm_crs, sect_crs, sz)) {
error:
- for (; buf_chain; buf_chain = buf) {
- buf = buf_chain->next;
- kfree_skb(buf_chain);
- }
- return -EFAULT;
+ for (; buf_chain; buf_chain = buf) {
+ buf = buf_chain->next;
+ kfree_skb(buf_chain);
}
- } else
- skb_copy_to_linear_data_offset(buf, fragm_crs,
- sect_crs, sz);
+ return -EFAULT;
+ }
sect_crs += sz;
sect_rest -= sz;
fragm_crs += sz;
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index f2db8a8..c2a2613 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -73,8 +73,8 @@ void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type,
* Returns message data size or errno
*/
int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
- u32 num_sect, unsigned int total_len,
- int max_size, int usrmem, struct sk_buff **buf)
+ u32 num_sect, unsigned int total_len, int max_size,
+ struct sk_buff **buf)
{
int dsz, sz, hsz, pos, res, cnt;
@@ -92,14 +92,9 @@ int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
return -ENOMEM;
skb_copy_to_linear_data(*buf, hdr, hsz);
for (res = 1, cnt = 0; res && (cnt < num_sect); cnt++) {
- if (likely(usrmem))
- res = !copy_from_user((*buf)->data + pos,
- msg_sect[cnt].iov_base,
- msg_sect[cnt].iov_len);
- else
- skb_copy_to_linear_data_offset(*buf, pos,
- msg_sect[cnt].iov_base,
- msg_sect[cnt].iov_len);
+ skb_copy_to_linear_data_offset(*buf, pos,
+ msg_sect[cnt].iov_base,
+ msg_sect[cnt].iov_len);
pos += msg_sect[cnt].iov_len;
}
if (likely(res))
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index ba2a72b..511019a 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -722,6 +722,6 @@ u32 tipc_msg_tot_importance(struct tipc_msg *m);
void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type,
u32 hsize, u32 destnode);
int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
- u32 num_sect, unsigned int total_len,
- int max_size, int usrmem, struct sk_buff **buf);
+ u32 num_sect, unsigned int total_len, int max_size,
+ struct sk_buff **buf);
#endif
diff --git a/net/tipc/port.c b/net/tipc/port.c
index 0651522..f628c84 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -115,7 +115,7 @@ int tipc_multicast(u32 ref, struct tipc_name_seq const *seq,
msg_set_nameupper(hdr, seq->upper);
msg_set_hdr_sz(hdr, MCAST_H_SIZE);
res = tipc_msg_build(hdr, msg_sect, num_sect, total_len, MAX_MSG_SIZE,
- !oport->user_port, &buf);
+ &buf);
if (unlikely(!buf))
return res;
@@ -234,7 +234,6 @@ struct tipc_port *tipc_createport_raw(void *usr_handle,
INIT_LIST_HEAD(&p_ptr->subscription.nodesub_list);
p_ptr->dispatcher = dispatcher;
p_ptr->wakeup = wakeup;
- p_ptr->user_port = NULL;
k_init_timer(&p_ptr->timer, (Handler)port_timeout, ref);
INIT_LIST_HEAD(&p_ptr->publications);
INIT_LIST_HEAD(&p_ptr->port_list);
@@ -271,7 +270,6 @@ int tipc_deleteport(u32 ref)
buf = port_build_peer_abort_msg(p_ptr, TIPC_ERR_NO_PORT);
tipc_nodesub_unsubscribe(&p_ptr->subscription);
}
- kfree(p_ptr->user_port);
spin_lock_bh(&tipc_port_list_lock);
list_del(&p_ptr->port_list);
@@ -444,7 +442,7 @@ int tipc_port_reject_sections(struct tipc_port *p_ptr, struct tipc_msg *hdr,
int res;
res = tipc_msg_build(hdr, msg_sect, num_sect, total_len, MAX_MSG_SIZE,
- !p_ptr->user_port, &buf);
+ &buf);
if (!buf)
return res;
@@ -927,7 +925,7 @@ static int tipc_port_recv_sections(struct tipc_port *sender, unsigned int num_se
int res;
res = tipc_msg_build(&sender->phdr, msg_sect, num_sect, total_len,
- MAX_MSG_SIZE, !sender->user_port, &buf);
+ MAX_MSG_SIZE, &buf);
if (likely(buf))
tipc_port_recv_msg(buf);
return res;
diff --git a/net/tipc/port.h b/net/tipc/port.h
index 9d8557a..71d1cd3 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -45,18 +45,6 @@
#define TIPC_FLOW_CONTROL_WIN 512
/**
- * struct user_port - TIPC user port (used with native API)
- * @usr_handle: user-specified field
- * @ref: object reference to associated TIPC port
- *
- * <various callback routines>
- */
-struct user_port {
- void *usr_handle;
- u32 ref;
-};
-
-/**
* struct tipc_port - TIPC port structure
* @usr_handle: pointer to additional user-defined information about port
* @lock: pointer to spinlock for controlling access to port
@@ -72,7 +60,6 @@ struct user_port {
* @port_list: adjacent ports in TIPC's global list of ports
* @dispatcher: ptr to routine which handles received messages
* @wakeup: ptr to routine to call when port is no longer congested
- * @user_port: ptr to user port associated with port (if any)
* @wait_list: adjacent ports in list of ports waiting on link congestion
* @waiting_pkts:
* @sent: # of non-empty messages sent by port
@@ -99,7 +86,6 @@ struct tipc_port {
struct list_head port_list;
u32 (*dispatcher)(struct tipc_port *, struct sk_buff *);
void (*wakeup)(struct tipc_port *);
- struct user_port *user_port;
struct list_head wait_list;
u32 waiting_pkts;
u32 sent;
--
1.8.1.2
--
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