lkml.org 
[lkml]   [2007]   [Jul]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/3] [net/core] move dev_mc_discard from dev_mcast.c to dev.c
Date
Because this function is only called by unregister_netdevice,
this moving could make this non-global function static,
and also remove its declaration in netdevice.h;

Any further, function __dev_addr_discard is also just called by
dev_mc_discard and dev_unicast_discard, keeping this two functions
both in one c file could make __dev_addr_discard also static
and remove its declaration in netdevice.h;

Futhermore, the sequential call to dev_unicast_discard and then
dev_mc_discard in unregister_netdevice have a similar mechanism that:
(netif_tx_lock_bh / __dev_addr_discard / netif_tx_unlock_bh),
they should merged into one to eliminate duplicates in acquiring and
releasing the dev->_xmit_lock, this would be done in my following patch.

Signed-off-by: Denis Cheng <crquan@gmail.com>
---
include/linux/netdevice.h | 2 --
net/core/dev.c | 14 +++++++++++++-
net/core/dev_mcast.c | 12 ------------
3 files changed, 13 insertions(+), 15 deletions(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index da7a13c..9820ca1 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1098,10 +1098,8 @@ extern int dev_mc_delete(struct net_device *dev, void *addr, int alen, int all
extern int dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly);
extern int dev_mc_sync(struct net_device *to, struct net_device *from);
extern void dev_mc_unsync(struct net_device *to, struct net_device *from);
-extern void dev_mc_discard(struct net_device *dev);
extern int __dev_addr_delete(struct dev_addr_list **list, int *count, void *addr, int alen, int all);
extern int __dev_addr_add(struct dev_addr_list **list, int *count, void *addr, int alen, int newonly);
-extern void __dev_addr_discard(struct dev_addr_list **list);
extern void dev_set_promiscuity(struct net_device *dev, int inc);
extern void dev_set_allmulti(struct net_device *dev, int inc);
extern void netdev_state_change(struct net_device *dev);
diff --git a/net/core/dev.c b/net/core/dev.c
index 13a0d9f..3ba63aa 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2715,7 +2715,7 @@ int __dev_addr_add(struct dev_addr_list **list, int *count,
return 0;
}

-void __dev_addr_discard(struct dev_addr_list **list)
+static void __dev_addr_discard(struct dev_addr_list **list)
{
struct dev_addr_list *tmp;

@@ -2785,6 +2785,18 @@ static void dev_unicast_discard(struct net_device *dev)
netif_tx_unlock_bh(dev);
}

+/*
+ * Discard multicast list when a device is downed
+ */
+
+static void dev_mc_discard(struct net_device *dev)
+{
+ netif_tx_lock_bh(dev);
+ __dev_addr_discard(&dev->mc_list);
+ dev->mc_count = 0;
+ netif_tx_unlock_bh(dev);
+}
+
unsigned dev_get_flags(const struct net_device *dev)
{
unsigned flags;
diff --git a/net/core/dev_mcast.c b/net/core/dev_mcast.c
index 235a2a8..99aece1 100644
--- a/net/core/dev_mcast.c
+++ b/net/core/dev_mcast.c
@@ -177,18 +177,6 @@ void dev_mc_unsync(struct net_device *to, struct net_device *from)
}
EXPORT_SYMBOL(dev_mc_unsync);

-/*
- * Discard multicast list when a device is downed
- */
-
-void dev_mc_discard(struct net_device *dev)
-{
- netif_tx_lock_bh(dev);
- __dev_addr_discard(&dev->mc_list);
- dev->mc_count = 0;
- netif_tx_unlock_bh(dev);
-}
-
#ifdef CONFIG_PROC_FS
static void *dev_mc_seq_start(struct seq_file *seq, loff_t *pos)
{
--
1.5.2.2
-
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/

\
 
 \ /
  Last update: 2007-07-18 04:43    [W:0.069 / U:24.600 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site