1DEV_SET_ALLMULTI(9)         Network device support         DEV_SET_ALLMULTI(9)
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NAME

6       dev_set_allmulti - update allmulti count on a device
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SYNOPSIS

9       int dev_set_allmulti(struct net_device * dev, int inc);
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ARGUMENTS

12       dev
13           device
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15       inc
16           modifier
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DESCRIPTION

19       Add or remove reception of all multicast frames to a device. While the
20       count in the device remains above zero the interface remains listening
21       to all interfaces. Once it hits zero the device reverts back to normal
22       filtering operation. A negative inc value is used to drop the counter
23       when releasing a resource needing all multicasts. Return 0 if
24       successful or a negative errno code on error.
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27Kernel Hackers Manual 3.10         June 2019               DEV_SET_ALLMULTI(9)
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