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| author | Heiner Kallweit <hkallweit1@gmail.com> | 2023-11-05 23:43:36 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-20 11:08:29 +0100 |
| commit | 38f5ac54b917a15bb26b01e2c587e886dd6ef3c6 (patch) | |
| tree | 675f052d6e8185b0f9c4d444b294665e0c9f263d | |
| parent | fd01115b033c8f1090c250c154449ea3e6f8c9f5 (diff) | |
| download | linux-38f5ac54b917a15bb26b01e2c587e886dd6ef3c6.tar.gz linux-38f5ac54b917a15bb26b01e2c587e886dd6ef3c6.tar.bz2 linux-38f5ac54b917a15bb26b01e2c587e886dd6ef3c6.zip | |
r8169: respect userspace disabling IFF_MULTICAST
[ Upstream commit 8999ce4cfc87e61b4143ec2e7b93d8e92e11fa7f ]
So far we ignore the setting of IFF_MULTICAST. Fix this and clear bit
AcceptMulticast if IFF_MULTICAST isn't set.
Note: Based on the implementations I've seen it doesn't seem to be 100% clear
what a driver is supposed to do if IFF_ALLMULTI is set but IFF_MULTICAST
is not. This patch is based on the understanding that IFF_MULTICAST has
precedence.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/4a57ba02-d52d-4369-9f14-3565e6c1f7dc@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169_main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index 2e555eda19a8..4cb2510f6fac 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -2549,6 +2549,8 @@ static void rtl_set_rx_mode(struct net_device *dev) if (dev->flags & IFF_PROMISC) { rx_mode |= AcceptAllPhys; + } else if (!(dev->flags & IFF_MULTICAST)) { + rx_mode &= ~AcceptMulticast; } else if (netdev_mc_count(dev) > MC_FILTER_LIMIT || dev->flags & IFF_ALLMULTI || tp->mac_version == RTL_GIGA_MAC_VER_35 || |