dev_set_allmulti(9)
NAME
dev_set_allmulti - update allmulti count on a device
SYNOPSIS
void dev_set_allmulti(struct net_device * dev, int inc);
ARGUMENTS
- dev
- device
- inc
- modifier
DESCRIPTION
Add or remove reception of all multicast frames to a device. While the
count in the device remains above zero the interface remains listening
to all interfaces. Once it hits zero the device reverts back to normal
filtering operation. A negative inc value is used to drop the counter
when releasing a resource needing all multicasts.