diff options
| author | Jesse Brandeburg <jesse.brandeburg@intel.com> | 2023-02-15 00:01:16 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2023-02-16 12:11:14 +0300 |
| commit | 802dcbd6f30feaa7c96a1fb4ecb1db57082df9d7 (patch) | |
| tree | a8353ed36cadfff06ffb1080d05ab001690b9670 | |
| parent | a1d83abc8f2f9d2193017665e6804c8baf65d469 (diff) | |
| download | linux-802dcbd6f30feaa7c96a1fb4ecb1db57082df9d7.tar.xz | |
net/core: print message for allmulticast
When the user sets or clears the IFF_ALLMULTI flag in the netdev, there are
no log messages printed to the kernel log to indicate anything happened.
This is inexplicably different from most other dev->flags changes, and
could suprise the user.
Typically this occurs from user-space when a user:
ip link set eth0 allmulticast <on|off>
However, other devices like bridge set allmulticast as well, and many
other flows might trigger entry into allmulticast as well.
The new message uses the standard netdev_info print and looks like:
[ 413.246110] ixgbe 0000:17:00.0 eth0: entered allmulticast mode
[ 415.977184] ixgbe 0000:17:00.0 eth0: left allmulticast mode
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
| -rw-r--r-- | net/core/dev.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 7307a0c15c9f..ad1e6482e1c1 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -8391,6 +8391,8 @@ static int __dev_set_allmulti(struct net_device *dev, int inc, bool notify) } } if (dev->flags ^ old_flags) { + netdev_info(dev, "%s allmulticast mode\n", + dev->flags & IFF_ALLMULTI ? "entered" : "left"); dev_change_rx_flags(dev, IFF_ALLMULTI); dev_set_rx_mode(dev); if (notify) |