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net: rtnetlink: ignore NETDEV_PRE_TYPE_CHANGE in rtnetlink_event() 

Ignore the new NETDEV_PRE_TYPE_CHANGE event in rtnetlink_event() since
there have been no changes userspace needs to be notified of.

Also add a comment to the netdev notifier event definitions to remind
people to update the exclusion list when adding new event types.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2010-03-19 04:42:24 +00:00 committed by David S. Miller
parent 3e81c6da39
commit 755d0e77ac
2 changed files with 5 additions and 1 deletions
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5
include/linux/notifier.h
View File

@ -182,7 +182,10 @@ static inline int notifier_to_errno(int ret)
* VC switch chains (for loadable kernel svgalib VC switch helpers) etc... * VC switch chains (for loadable kernel svgalib VC switch helpers) etc...
*/ */
/* netdevice notifier chain */ /* netdevice notifier chain. Please remember to update the rtnetlink
* notification exclusion list in rtnetlink_event() when adding new
* types.
*/
#define NETDEV_UP 0x0001 /* For now you can't veto a device up/down */ #define NETDEV_UP 0x0001 /* For now you can't veto a device up/down */
#define NETDEV_DOWN 0x0002 #define NETDEV_DOWN 0x0002
#define NETDEV_REBOOT 0x0003 /* Tell a protocol stack a network interface #define NETDEV_REBOOT 0x0003 /* Tell a protocol stack a network interface

1
net/core/rtnetlink.c
View File

@ -1513,6 +1513,7 @@ static int rtnetlink_event(struct notifier_block *this, unsigned long event, voi
case NETDEV_POST_INIT: case NETDEV_POST_INIT:
case NETDEV_REGISTER: case NETDEV_REGISTER:
case NETDEV_CHANGE: case NETDEV_CHANGE:
case NETDEV_PRE_TYPE_CHANGE:
case NETDEV_GOING_DOWN: case NETDEV_GOING_DOWN:
case NETDEV_UNREGISTER: case NETDEV_UNREGISTER:
case NETDEV_UNREGISTER_BATCH: case NETDEV_UNREGISTER_BATCH: