diff options
| author | Santiago Ruano Rincón <santiago.ruano-rincon@imt-atlantique.fr> | 2022-11-21 21:53:05 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-11-23 14:46:42 +0100 |
| commit | 748064b54c99418f615aabff5755996cd9816969 (patch) | |
| tree | b0f871370da236bb6d9024bb03ffc9fd33807221 /drivers/net/usb/cdc_ncm.c | |
| parent | net: usb: qmi_wwan: add u-blox 0x1342 composition (diff) | |
| download | linux-748064b54c99418f615aabff5755996cd9816969.tar.xz linux-748064b54c99418f615aabff5755996cd9816969.zip | |
net/cdc_ncm: Fix multicast RX support for CDC NCM devices with ZLP
ZLP for DisplayLink ethernet devices was enabled in 6.0:
266c0190aee3 ("net/cdc_ncm: Enable ZLP for DisplayLink ethernet devices").
The related driver_info should be the "same as cdc_ncm_info, but with
FLAG_SEND_ZLP". However, set_rx_mode that enables handling multicast
traffic was missing in the new cdc_ncm_zlp_info.
usbnet_cdc_update_filter rx mode was introduced in linux 5.9 with:
e10dcb1b6ba7 ("net: cdc_ncm: hook into set_rx_mode to admit multicast
traffic")
Without this hook, multicast, and then IPv6 SLAAC, is broken.
Fixes: 266c0190aee3 ("net/cdc_ncm: Enable ZLP for DisplayLink ethernet devices")
Signed-off-by: Santiago Ruano Rincón <santiago.ruano-rincon@imt-atlantique.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/usb/cdc_ncm.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 8d5cbda33f66..0897fdb6254b 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -1915,6 +1915,7 @@ static const struct driver_info cdc_ncm_zlp_info = { .status = cdc_ncm_status, .rx_fixup = cdc_ncm_rx_fixup, .tx_fixup = cdc_ncm_tx_fixup, + .set_rx_mode = usbnet_cdc_update_filter, }; /* Same as cdc_ncm_info, but with FLAG_WWAN */ |