android/android_kernel_asus_sm8350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

r8169: respect userspace disabling IFF_MULTICAST

Browse Source 
[ 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: 1da177e4c3 ("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>
This commit is contained in:
Heiner Kallweit 2023-11-05 23:43:36 +01:00 committed by Greg Kroah-Hartman
parent e820e23338
commit cce1d46681
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/realtek/r8169_main.c
View File

@ -4288,6 +4288,8 @@ static void rtl_set_rx_mode(struct net_device *dev)
/* Unconditionally log net taps. */
netif_notice(tp, link, dev, "Promiscuous mode enabled\n");
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 ||