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Date: Fri, 16 Sep 2011 14:04:29 -0700
From: Stephen Hemminger <shemminger@...tta.com>
To: Krzysztof Halasa <khc@...waw.pl>,
"David S. Miller" <davem@...emloft.net>
Cc: netdev@...r.kernel.org
Subject: [PATCH] wan: make LAPB callbacks const
This is compile tested only.
Suggested by dumpster diving in PAX.
Signed-off-by: Stephen Hemminger <shemminger@...tta.com>
---
drivers/net/wan/hdlc_x25.c | 16 ++++++++--------
drivers/net/wan/lapbether.c | 3 +--
drivers/net/wan/x25_asy.c | 3 +--
include/linux/lapb.h | 3 ++-
include/net/lapb.h | 2 +-
net/lapb/lapb_iface.c | 29 +++++++++++++++--------------
6 files changed, 28 insertions(+), 28 deletions(-)
--- a/drivers/net/wan/hdlc_x25.c 2011-09-16 11:30:01.849087557 -0700
+++ b/drivers/net/wan/hdlc_x25.c 2011-09-16 11:31:04.901093255 -0700
@@ -134,15 +134,15 @@ static netdev_tx_t x25_xmit(struct sk_bu
static int x25_open(struct net_device *dev)
{
- struct lapb_register_struct cb;
int result;
-
- cb.connect_confirmation = x25_connected;
- cb.connect_indication = x25_connected;
- cb.disconnect_confirmation = x25_disconnected;
- cb.disconnect_indication = x25_disconnected;
- cb.data_indication = x25_data_indication;
- cb.data_transmit = x25_data_transmit;
+ static const struct lapb_register_struct cb = {
+ .connect_confirmation = x25_connected,
+ .connect_indication = x25_connected,
+ .disconnect_confirmation = x25_disconnected,
+ .disconnect_indication = x25_disconnected,
+ .data_indication = x25_data_indication,
+ .data_transmit = x25_data_transmit,
+ };
result = lapb_register(dev, &cb);
if (result != LAPB_OK)
--- a/drivers/net/wan/lapbether.c 2011-09-16 11:31:22.609091232 -0700
+++ b/drivers/net/wan/lapbether.c 2011-09-16 11:31:30.597091736 -0700
@@ -259,14 +259,13 @@ static int lapbeth_set_mac_address(struc
}
-static struct lapb_register_struct lapbeth_callbacks = {
+static const struct lapb_register_struct lapbeth_callbacks = {
.connect_confirmation = lapbeth_connected,
.connect_indication = lapbeth_connected,
.disconnect_confirmation = lapbeth_disconnected,
.disconnect_indication = lapbeth_disconnected,
.data_indication = lapbeth_data_indication,
.data_transmit = lapbeth_data_transmit,
-
};
/*
--- a/drivers/net/wan/x25_asy.c 2011-09-16 11:31:38.833091828 -0700
+++ b/drivers/net/wan/x25_asy.c 2011-09-16 11:31:46.317091608 -0700
@@ -434,14 +434,13 @@ static void x25_asy_disconnected(struct
netif_rx(skb);
}
-static struct lapb_register_struct x25_asy_callbacks = {
+static const struct lapb_register_struct x25_asy_callbacks = {
.connect_confirmation = x25_asy_connected,
.connect_indication = x25_asy_connected,
.disconnect_confirmation = x25_asy_disconnected,
.disconnect_indication = x25_asy_disconnected,
.data_indication = x25_asy_data_indication,
.data_transmit = x25_asy_data_transmit,
-
};
--- a/include/linux/lapb.h 2011-09-16 11:32:21.021093958 -0700
+++ b/include/linux/lapb.h 2011-09-16 11:38:16.593110202 -0700
@@ -44,7 +44,8 @@ struct lapb_parms_struct {
unsigned int mode;
};
-extern int lapb_register(struct net_device *dev, struct lapb_register_struct *callbacks);
+extern int lapb_register(struct net_device *dev,
+ const struct lapb_register_struct *callbacks);
extern int lapb_unregister(struct net_device *dev);
extern int lapb_getparms(struct net_device *dev, struct lapb_parms_struct *parms);
extern int lapb_setparms(struct net_device *dev, struct lapb_parms_struct *parms);
--- a/include/net/lapb.h 2011-09-16 11:32:21.037093954 -0700
+++ b/include/net/lapb.h 2011-09-16 11:34:34.361100045 -0700
@@ -95,7 +95,7 @@ struct lapb_cb {
struct sk_buff_head write_queue;
struct sk_buff_head ack_queue;
unsigned char window;
- struct lapb_register_struct callbacks;
+ const struct lapb_register_struct *callbacks;
/* FRMR control information */
struct lapb_frame frmr_data;
--- a/net/lapb/lapb_iface.c 2011-09-16 11:32:21.053093960 -0700
+++ b/net/lapb/lapb_iface.c 2011-09-16 11:38:16.593110202 -0700
@@ -139,7 +139,8 @@ out:
return lapb;
}
-int lapb_register(struct net_device *dev, struct lapb_register_struct *callbacks)
+int lapb_register(struct net_device *dev,
+ const struct lapb_register_struct *callbacks)
{
struct lapb_cb *lapb;
int rc = LAPB_BADTOKEN;
@@ -158,7 +159,7 @@ int lapb_register(struct net_device *dev
goto out;
lapb->dev = dev;
- lapb->callbacks = *callbacks;
+ lapb->callbacks = callbacks;
__lapb_insert_cb(lapb);
@@ -380,32 +381,32 @@ int lapb_data_received(struct net_device
void lapb_connect_confirmation(struct lapb_cb *lapb, int reason)
{
- if (lapb->callbacks.connect_confirmation)
- lapb->callbacks.connect_confirmation(lapb->dev, reason);
+ if (lapb->callbacks->connect_confirmation)
+ lapb->callbacks->connect_confirmation(lapb->dev, reason);
}
void lapb_connect_indication(struct lapb_cb *lapb, int reason)
{
- if (lapb->callbacks.connect_indication)
- lapb->callbacks.connect_indication(lapb->dev, reason);
+ if (lapb->callbacks->connect_indication)
+ lapb->callbacks->connect_indication(lapb->dev, reason);
}
void lapb_disconnect_confirmation(struct lapb_cb *lapb, int reason)
{
- if (lapb->callbacks.disconnect_confirmation)
- lapb->callbacks.disconnect_confirmation(lapb->dev, reason);
+ if (lapb->callbacks->disconnect_confirmation)
+ lapb->callbacks->disconnect_confirmation(lapb->dev, reason);
}
void lapb_disconnect_indication(struct lapb_cb *lapb, int reason)
{
- if (lapb->callbacks.disconnect_indication)
- lapb->callbacks.disconnect_indication(lapb->dev, reason);
+ if (lapb->callbacks->disconnect_indication)
+ lapb->callbacks->disconnect_indication(lapb->dev, reason);
}
int lapb_data_indication(struct lapb_cb *lapb, struct sk_buff *skb)
{
- if (lapb->callbacks.data_indication)
- return lapb->callbacks.data_indication(lapb->dev, skb);
+ if (lapb->callbacks->data_indication)
+ return lapb->callbacks->data_indication(lapb->dev, skb);
kfree_skb(skb);
return NET_RX_SUCCESS; /* For now; must be != NET_RX_DROP */
@@ -415,8 +416,8 @@ int lapb_data_transmit(struct lapb_cb *l
{
int used = 0;
- if (lapb->callbacks.data_transmit) {
- lapb->callbacks.data_transmit(lapb->dev, skb);
+ if (lapb->callbacks->data_transmit) {
+ lapb->callbacks->data_transmit(lapb->dev, skb);
used = 1;
}
--
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